Multi-line synchronous mask edge pressing device

Abstract

The invention relates to a multi-line synchronous mask edge pressing device which comprises a multi-line hot pressing device, a hot pressing platform, a rack, a first cutting device, a second cutting device, a conveying device, a control system and a control panel. The conveying device comprises two guide rollers, two cloth combining rollers and two cloth combining motors; the multi-wire hot-pressing device comprises a hot-pressing roller, a plurality of first hot-pressing heads, a plurality of second hot-pressing heads, an edge pressing motor and a heating device; the first cutting device comprises a mounting plate and a plurality of blades; the control system is connected with the multi-line hot pressing device, the first cutting device, the second cutting device and the conveying device, and the control panel is connected with the control system. By arranging the multi-thread hot pressing device, the technical problem of how to improve the edge pressing efficiency of the mask is solved.

Description

Technical Field

[0001] The invention relates to the field of mask edge pressing devices, and in particular to a multi-line synchronous mask edge pressing device. Background Art

[0002] A mask is a sanitary product, generally worn on the mouth and nose to filter the air entering the mouth and nose, so as to block harmful gases, odors, droplets, viruses and other substances. It is made of gauze or paper and other materials. The mask has a certain filtering effect on the air entering the lungs. When respiratory infectious diseases are prevalent, wearing a mask is very effective when working in a dusty environment. Masks can be divided into air filtering masks and air supply masks. When producing medical masks, the raw cloth needs to be pressed and then cut into a rectangle.

[0003] In the prior art, a single-line edge pressing method is used for the raw cloth, which has low production efficiency and requires manual lamination of the mask, which is labor-intensive. Therefore, a multi-line synchronous mask edge pressing device is required. Summary of the invention

[0004] The present invention aims to solve the technical problem of how to improve the edge pressing efficiency of a mask, and provides a multi-line synchronous edge pressing device for a mask.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A multi-line synchronous mask edge pressing device comprises: a multi-line hot pressing device, a hot pressing platform, a frame, a first cutting device, a second cutting device, a conveying device, a control system, and a control panel; the hot pressing platform is fixed on the frame, and its upper surface is a smooth surface, and a plurality of supporting cylinders are vertically arranged below the hot pressing platform, and the telescopic ends of the supporting cylinders are fixed to the hot pressing platform; the conveying device comprises two guide rollers, two cloth closing rollers, and two cloth closing motors; the two guide rollers are arranged above the hot pressing platform, and the rotating shafts at both ends of the two guide rollers are connected to the frame bearings, and the axes of the guide rollers are connected to the hot pressing platform. The upper surface of the hot pressing platform is parallel, the distance between the lower part of the guide roller and the upper surface of the hot pressing platform is adapted to the thickness of the mask, and the two guide rollers are parallel to each other; the two cloth closing rollers are arranged on one side of the guide roller, higher than the guide roller, and the rotating shafts at both ends are connected to the frame bearings, the axis of the cloth closing roller is parallel to the axis of the guide roller, the distance between the two cloth closing rollers is adapted to the thickness of the mask, and the cloth closing roller cooperates with the guide roller; the cloth closing motor is connected to the rotating shaft of the cloth closing roller; the multi-line hot pressing device includes a hot pressing roller, a plurality of first hot pressing heads, a plurality of second hot pressing heads, a pressing motor, Heating device; the hot pressing roller is arranged between two guide rollers, and its axis is parallel to the axis of the guide roller, and its two end shafts are connected to the frame bearings; the edge pressing motor is connected to the rotating shaft of the hot pressing roller; the first hot pressing head is an annular protrusion, which is sleeved on the surface of the hot pressing roller and is arranged at intervals along the axis of the hot pressing roller. The distance between two adjacent first hot pressing heads is adapted to the shape of the mask. The first hot pressing head is connected to the heating device, and the first hot pressing head is matched with the raw material cloth; a plurality of second hot pressing heads are strip-shaped protrusions, which are arranged on the side of the hot pressing roller along the axis direction of the hot pressing roller. The distance between two adjacent second heat pressing heads is adapted to the shape of the mask, and the second heat pressing heads are connected to the heating device; the first cutting device includes a mounting plate and a plurality of blades; the mounting plate is arranged between two guide rollers, and is arranged on the side of the multi-line heat pressing device along the conveying direction of the raw cloth; a plurality of blades are fixed to the lower part of the mounting plate, and are arranged at intervals along the axial direction of the heat pressing roller, and correspond to a plurality of first heat pressing heads; the control system is connected to the multi-line heat pressing device, the first cutting device, the second cutting device, and the conveying device, and the control panel is connected to the control system. The heating device can use electric heating wire heating or ultrasonic heating. The cloth closing roller cooperates with the guide roller to convey the raw cloth. The first heat pressing head and the second heat pressing head cooperate with the raw cloth to form a rectangular pressing edge on the raw cloth.

[0006] Two non-woven fabrics and one meltblown fabric are connected between two cloth-combining rollers, and the formed raw cloth passes through the bottom of the guide roller, the first hot pressing head and the second hot pressing head, the blade, and the bottom of the guide roller to enter the second cutting device. A plurality of first hot pressing heads and a plurality of second hot pressing heads are set up, and through the rotation of the edge pressing motor, a rectangular edge is formed on the raw cloth. A blade is set up to cut the raw cloth into strips along the center of the edge pressing. The edge pressing device can process raw cloths of different widths to form mask stacks with different numbers of laminates.

[0007] Furthermore, the second cutting device includes a plurality of separation rollers, two conveying rollers, two waste rolls, a driving motor, a cutting device, and an output conveyor belt; a plurality of separation rollers are arranged on the other side of the guide roller, higher than the guide roller, and their axes are parallel to the axes of the guide rollers; a plurality of separation rollers are arranged along the axis direction of the guide rollers, and their heights are successively decreased along the axis direction of the guide rollers; a plurality of separation rollers cooperate with the guide rollers, and two first limit plates are sleeved on the separation rollers, and the distance between the two first limit plates is adapted to the shape of the mask; two conveying rollers are arranged on the sides of the plurality of separation rollers, lower than the separation rollers, and cooperate with the plurality of separation rollers, and their axes are parallel to the axes of the separation rollers, and the distance between the two conveying rollers is adapted to the mask; a cutting device is arranged on the sides of the conveying rollers, and cooperates with the conveying rollers; an output conveyor belt is arranged on the sides of the cutting device, and cooperates with the cutting device; two waste rolls are arranged on both sides of the plurality of separation rollers, and the waste rolls are connected to a recycling motor. A plurality of separation rollers cooperate with the guide rollers to convey the strip cloth. The distance between the two conveying rollers matches the mask, and the multi-layer strip cloth is pressed and conveyed.

[0008] Manually laminating masks is very time-consuming and laborious. After the raw cloth is cut into several strips and two waste cloths, the strips are passed over several separation rollers respectively, and then combined between two conveyor rollers to achieve lamination, and then pass through the cutting device to form a rectangular mask. The two waste cloths on the outside are rolled onto two waste reels and rewound by a recycling motor. The positional relationship between the several separation rollers needs to be designed so that the pressure edges on the several strips of cloth after lamination overlap. Separation rollers are set to prevent the lamination process from causing wrinkles in the raw cloth during transmission.

[0009] Furthermore, the second cutting device includes a compensation roller, two rotating rods, and a stacking conveying device; the stacking conveying device is arranged between a plurality of separation rollers and a conveying roller, and cooperates with the separation roller and the conveying roller respectively; the compensation roller is arranged between the stacking conveying device and the conveying roller, lower than the stacking conveying device and lower than the conveying roller, and its axis is parallel to the axis of the conveying roller; the rotating rod is arranged obliquely on both sides of the mask, and the upper ends of the two rotating rods are connected to the two end shafts of the compensation roller through bearings, and the lower ends are rotatably hinged with the frame. The stacking conveying device cooperates with the separation roller and the conveying roller respectively to convey the strip cloth.

[0010] If the multi-layer strips of cloth are directly cut during the movement, an inclined cutting surface is likely to be produced. If the conveying device is used for intermittent transmission, the edge pressing effect of the multi-line hot pressing device will be uneven. Several strips of cloth passing through the separation roller pass through the stacking conveyor, the bottom of the compensation roller, two conveying rollers, and the cutting device in turn. When the mask cutting process is required, the two conveying rollers are stopped by the driving motor, and the length of the strip of cloth between the stacking conveyor and the two conveying rollers gradually increases, so that the compensation roller moves downward under the action of gravity, and the rotating rod rotates, so that the multi-layer strip of cloth maintains a tight state. When the cutting process is completed, the driving motor is started to rotate the two conveying rollers, so that the length of the strip of cloth between the stacking conveyor and the two conveying rollers is gradually shortened, so that the compensation roller moves upward and the rotating rod rotates. The power of the driving motor needs to be designed so that the compensation roller moves periodically.

[0011] Furthermore, the second cutting device includes a number of counterweight rings, a screw rod, a torsion disk, and a nut; a threaded hole is provided in the middle of the rotating rod; the screw rod passes through the two threaded holes, and an external thread is provided on the screw rod, and the external thread is adapted to the threaded hole; the nut is sleeved on the screw rod and is located on the outside of the rotating rod; the torsion disk is fixed to the screw rod and is located on the outside of the rotating rod, and a number of arc-shaped concave surfaces are provided on the side of the torsion disk, and a rubber layer is provided on the side of the torsion disk; a number of counterweight rings are sleeved on the screw rod and are located between the two rotating rods, the inner diameter of the counterweight ring is larger than the diameter of the screw rod, and a number of annular protrusions are provided on the inner side surface of the counterweight ring, the inner diameter of the annular protrusion is larger than the diameter of the screw rod, and the spacing between adjacent annular protrusions is adapted to the external thread.

[0012] When the number of layers of the multi-layer strip cloth changes, the internal tension needs to be adjusted. When the counterweight needs to be adjusted, remove the nut by rotating it, then turn the torsion plate to rotate the screw rod and separate it from the rotating rod on one side, then put the counterweight ring of the corresponding weight on the screw rod, then turn the torsion plate in the opposite direction and fix it with the nut, and then move the counterweight ring to the center position. There are several annular protrusions on the inner side of the counterweight ring, which are used to engage with the thread to prevent the counterweight ring from moving to the sides.

[0013] Furthermore, the stacking conveying device includes an upper stacking roller, a lower stacking roller, two second limit plates, two third limit plates, two second slideways, two third slideways, two second sliders, two third sliders, two second cylinders, two third cylinders, and a stacking motor; the second limit plate is fixed to the frame, the two second limit plates are arranged oppositely and in parallel, the inner side surface of the second limit plate is a limit surface, the limit surface is a smooth surface, the limit surface is perpendicular to the axis of the separation roller, the side of the limit surface close to the separation roller is an arc surface, which is bent outward and matched with a plurality of separation rollers; the upper stacking roller is arranged between the two limit surfaces, and the rotating shafts at both ends of the upper stacking roller are connected to the second limit plate bearings, and the side surfaces of the upper stacking roller are connected to the limiting surfaces; the stacking motor is connected to the rotating shaft of the upper stacking roller; the two second slideways are The T-shaped groove is arranged on the limiting surface and is arranged along the radial direction of the upper lamination roller; the second slider is arranged in the second slideway; the lower lamination roller is arranged below the upper lamination roller, and its two end rotating shafts are respectively connected to the two second slider bearings, and the surface of the lower lamination roller is connected to the limiting surface; the second cylinder is arranged in the second slideway, and its telescopic end is fixed to the second slider; the third limiting plate is fixed on the frame, and the two third limiting plates are arranged oppositely and in parallel; the two third slideways are T-shaped grooves, which are arranged on the inner side of the third limiting plate; the third slider is arranged in the third slideway; the two end rotating shafts of a conveying roller are connected to the third limiting plate bearings, and the other conveying roller is located above, and its two end rotating shafts are connected to the third slider bearings; the third cylinder is arranged in the third slideway, and its telescopic end is fixed to the third slider. The side of the limiting surface close to the separation roller is an arc surface, which is bent outward and cooperates with a number of separation rollers to reduce the wear of the strip cloth of the second limiting plate.

[0014] The conveying roller and the lamination conveying device need to adapt to different numbers of multi-layer strips of cloth. Several strips of cloth that have passed through the separation roller are overlapped and conveyed between the upper lamination roller and the lower lamination roller, and are combined into multiple strips of cloth under the action of the second limit plate. When the distance between the upper lamination roller and the lower lamination roller needs to be adjusted, the second cylinder is controlled to extend and retract to move the second slider and move the lower lamination roller. When the distance between the two conveying rollers needs to be adjusted, the third cylinder is controlled to extend and retract to move the third slider and move the upper conveying roller.

[0015] Furthermore, the cutting device includes a press-cutting table, an output conveyor belt, a first cutter, a lifting plate, a plurality of lifting cylinders, two clamping devices, a first collection camera, and a cutting groove; the upper surface of the press-cutting table is a smooth surface, located on the side of the conveyor roller, one side cooperates with the conveyor roller, and the other side cooperates with the output conveyor belt, and the upper surface of the press-cutting table and the upper surface of the output conveyor belt are in the same horizontal plane; a plurality of lifting cylinders are vertically arranged above the press-cutting table; the lifting plate is horizontally arranged below the lifting cylinder and fixed to the telescopic ends of the plurality of lifting cylinders; the first cutter is arranged directly above the press-cutting table and fixed to the lower part of the lifting plate; the cutting groove is arranged on the press-cutting table and adapted to the blade of the first cutter; two clamping devices are arranged above the press-cutting table and located on both sides of the first cutter; the first collection camera faces the mask. One side of the upper surface of the press-cutting table cooperates with the conveyor roller, and the other side cooperates with the output conveyor belt. After the multi-layer strip cloth is press-cut, it is conveyed to the output conveyor belt.

[0016] If a clamping device is not provided to clamp the masks, the stacks of masks cut out by compression will be offset from each other under the action of elasticity, and alignment will be required when adding ear ropes later, which consumes manpower and material resources. The multi-layer strips that pass through the conveyor roller pass through the pressing and cutting table and connect to the output conveyor belt. When the first acquisition camera detects that the edge pressing reaches below the first cutter, the output conveyor belt and the conveyor roller are controlled to stop, and the two clamping devices are controlled to clamp the multi-layer strips of cloth, and then the lifting cylinder is controlled to extend to below the lifting plate and below the first cutter to cut off the multi-layer strips of cloth, and then the first cutter is raised by the lifting cylinder, and then the clamping device is controlled to loosen the mask, and the output conveyor belt is started to convey the stack of masks out.

[0017] Furthermore, the cutting device includes two side plates and a top plate; the two side plates are fixed on the cutting table and are located on both sides of the mask; the top plate is fixed to the upper parts of the two side plates, and a connecting port is provided on the top plate, which cooperates with the first cutter, and two receiving grooves are provided on the bottom surface of the top plate, and the two receiving grooves are respectively located on both sides of the first cutter; the clamping device includes a plurality of first springs, a pressure plate, a plurality of first pressure rods, and a plurality of second pressure rods; the pressure plate is arranged in the receiving groove and adapted to the receiving groove, and the bottom surface of the pressure plate and the bottom surface of the top plate are in the same plane; a plurality of first pressure rods are vertically fixed to the upper part of the pressure plate, and their upper ends penetrate the top plate upward, a rubber layer is provided on the top surface of the first pressure rod, and a clamping groove is provided on the top surface of the first pressure rod; the first spring is arranged in the clamping groove, and the first spring is fixed to the inner bottom surface of the clamping groove; the second pressure rod is vertically fixed to the lower part of the lifting plate, and its lower end is in the clamping groove and adapted to the clamping groove, and the second pressure rod is fixed to the upper end of the first spring. The communicating port cooperates with the first cutter to allow the first cutter to pass through.

[0018] Combining the movement of the clamping device and the first cutter can save energy. When the lifting plate moves downward, it drives the second pressure rod to move downward, which causes the first pressure rod to move downward, and the pressure plate to move downward. After the pressure plate is pressed onto the mask, the first spring is compressed to elastically clamp the mask, and stacks of masks with different numbers of layers can be clamped. When the lifting plate moves upward, it drives the second pressure rod to move upward, and the first pressure rod is moved upward by the first spring, so that the pressure plate returns to the clamping groove. Side plates and top plates are provided to prevent the masks from spreading.

[0019] Furthermore, the second cutting device includes a plurality of hydraulic cylinders, a plurality of pressure sensors, and a plurality of separation support frames. The plurality of hydraulic cylinders correspond to the plurality of separation rollers, and the hydraulic cylinders are vertically arranged below the corresponding separation rollers; the pressure sensors are arranged above the hydraulic cylinders and fixed to the telescopic ends of the hydraulic cylinders; the separation support frames are fixed on the pressure sensors; and the rotating shafts at both ends of the separation rollers are connected to the bearings of the separation support frames.

[0020] When the hydraulic cylinder is extended and retracted, the edge pressing position of the corresponding strip cloth is adjusted during lamination to align the multiple layers of strip cloth. A pressure sensor is provided to prevent the strip cloth from breaking due to excessive tension.

[0021] Furthermore, the second cutting device includes an auxiliary reel, an auxiliary motor, a clamp, a fixing device, a wire cylinder, a fourth slider, a plurality of fourth cylinders, and a fixing seat; the auxiliary reel is arranged on the side of the separation roller; the auxiliary motor is connected to the rotating shaft of the auxiliary reel; the clamp is arranged on the auxiliary reel; the fixing seat is arranged between the separation roller and the auxiliary reel, lower than the separation roller and lower than the auxiliary reel, and a fixing port is arranged in the fixing seat, the fixing port is a through port, adapted to the width of the raw cloth, the inner top surface of the fixing port is a smooth surface, and a third slide is arranged on the inner bottom surface of the fixing port; the lead screw is arranged in the third slide, parallel to the axis of the separation roller, and the lead screw is connected to the fourth motor; the fourth slider is arranged in the third slide, and is sleeved on the lead screw; the fixing device is fixed to the upper part of the fourth slider.

[0022] Before edge pressing, it is very difficult to align the edge of several strips of cloth. Before edge pressing, control several hydraulic cylinders to shrink, and the staff will pass the raw cloth between two cloth-closing rollers, two guide rollers, the top of the separation roller, and the fixing port in turn, and then fix it on the auxiliary reel with a clip, and then use the support cylinder to move the hot pressing platform upward to cooperate with the two guide rollers, and then start the auxiliary motor to convey the raw cloth. The raw cloth passes through the multi-line hot pressing device and the first cutting device to form several strips of cloth. After that, the staff controls several hydraulic cylinders to extend through the control panel, so that several separation rollers move upward and connect with the corresponding strips of cloth until the detection value of the pressure sensor reaches the set value. Then, several strips of cloth are overlapped and fixed together in turn through the fixing device and the lead screw.

[0023] Further, the fixing device includes a fixed cylinder, a second cutter, a plurality of fixed rods, an electromagnet, a limiting protrusion, an adsorption plate, and a second acquisition camera; the fixed cylinder is vertically arranged above the fourth slider and fixed to the fourth slider, and the telescopic end of the fixed cylinder is a telescopic rod; a plurality of limiting protrusions are arranged on the top surface of the telescopic rod; the adsorption plate is a ferromagnetic material, arranged above the telescopic rod, and a plurality of limiting grooves are arranged on the bottom surface of the adsorption plate, and the limiting grooves are adapted to the limiting protrusions; a plurality of fixed rods are vertically arranged above the adsorption plate, fixed to the adsorption plate, and matched with the mask, the side of the fixed rod is a rough surface, and the upper end of the fixed rod is a smooth conical end; the second cutter is arranged on the side of the adsorption plate along the transmission direction of the mask, fixed to the telescopic rod, the blade of the second cutter faces upward, and matches with the inner top surface of the fixed port; the electromagnet is arranged in the telescopic rod; a plurality of penetration grooves are arranged on the inner top surface of the fixed port, and the penetration grooves match with the fixed rod, and the second acquisition camera is arranged on the fourth slider and faces upward.; a plurality of fixed rods match with the mask, and only one mask is penetrated at a time. The penetration groove matches with the fixing rod so that the upper end of the fixing rod can enter into the penetration groove.

[0024] When overlapping, aligning and fixing several strips of cloth, when the second acquisition camera detects the edge of the outermost strip of cloth, the auxiliary motor and the cloth closing motor are controlled to stop, and then the fixed cylinder is controlled to extend, so that the adsorption plate moves upward, so that several fixed rods move upward to pierce the outermost strip of cloth, and the corresponding strip of cloth is cut off. Then the fixed cylinder is controlled to shrink, and the fixed rod is moved to one side by a distance of a mask through the lead screw, and then the auxiliary motor and the cloth closing motor are started. When the second acquisition camera detects the edge of the corresponding strip of cloth, the auxiliary motor and the cloth closing motor are controlled to stop, so that the fixed rod pierces the corresponding strip of cloth and cuts off the corresponding strip of cloth. Repeat the above process until all the strips of cloth are aligned and fixed. Then turn off the electromagnet, cut the waste cloth and roll it onto the waste reel. After that, the staff removes the adsorption plate, and passes the aligned multi-layer strips of cloth through the lamination roller, compensation roller, and conveying roller in turn. In this process, the staff can assist by controlling the second cylinder and the third cylinder. In the above process, the hydraulic cylinders always adapt to the corresponding strips of cloth according to the detection data of the pressure sensor, so that the strips of cloth are always in a taut state and closely attached to the separation roller. There are waste cloths on both sides of some of the strips of cloth.

[0025] Beneficial effects of the present invention: 1. Setting up a multi-line hot pressing device can improve the edge pressing efficiency; 2. The stacking roller and the separation roller are set to stack multiple strips of cloth together to improve the pressing and cutting efficiency; 3. Auxiliary reels and fixing devices are provided to align multiple strips of cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the overall structure of the multi-line synchronous mask edge pressing device; Figure 2 It is a cross-sectional schematic diagram of a front view of a stacking conveying device of the multi-line synchronous mask edge pressing device; Figure 3 It is a top view schematic diagram of the compensation roller of the multi-line synchronous mask edge pressing device; Figure 4 It is a cross-sectional schematic diagram of a front view of a compensation roller of the multi-line synchronous mask edge pressing device; Figure 5 It is a cross-sectional schematic diagram of a side view of a fixing seat of the multi-line synchronous mask edge pressing device; Description of reference numerals: 1. Frame; 2. Cloth-closing roller; 21. Guide roller; 22. Hot pressing roller; 23. Blade; 24. First limit plate; 25. Separation roller; 26. Hydraulic cylinder; 27. Waste reel; 3. Hot pressing platform; 31. Support cylinder; 4. Fixed seat; 41. Fourth motor; 42. Screw cylinder; 43. Fourth slide block; 44. Fixed cylinder; 45. Electromagnet; 46. Adsorption plate; 47. Fixed rod; 48. Second cutter; 5. Auxiliary reel; 6. Second limit plate; 61. Upper lamination roller; 62. Lower lamination roller; 63. Second cylinder; 7. Compensation roller; 71. Rotating rod; 72. Torsion plate; 73. Nut; 74. Counterweight ring; 8. The third limiting plate; 81. The conveying roller; 9. Lifting cylinder; 91. Side plate; 92. Pressing and cutting table; 93. Lifting plate; 94. Second pressing rod; 95. First spring; 96. First pressing rod; 97. Pressing plate; 98. First cutting knife; 99. Top plate; 10. Output conveyor belt. DETAILED DESCRIPTION

[0027] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0028] Embodiment 1: like Figure 1As shown, a multi-line synchronous mask edge pressing device comprises: a multi-line hot pressing device, a hot pressing platform (3), a frame (1), a first cutting device, a second cutting device, a conveying device, a control system, and a control panel; the hot pressing platform (3) is fixed on the frame (1), and its upper surface is a smooth surface; four supporting cylinders (31) are vertically arranged below the hot pressing platform (3), and the telescopic ends of the supporting cylinders (31) are fixed to the hot pressing platform (3); the conveying device comprises two guide rollers (21), two cloth closing rollers (2), and two cloth closing motors; the two guide rollers (21) are arranged above the hot pressing platform (3), and the rotating shafts at both ends are connected to the bearings of the frame (1). The axis of the guide roller (21) is parallel to the upper surface of the hot pressing platform (3), the distance between the lower part of the guide roller (21) and the upper surface of the hot pressing platform (3) is adapted to the thickness of the mask, and the two guide rollers (21) are parallel to each other; two cloth-closing rollers (2) are arranged on one side of the guide roller (21), are higher than the guide roller (21), and the rotating shafts at both ends are connected to the bearings of the frame (1), the axis of the cloth-closing roller (2) is parallel to the axis of the guide roller (21), the distance between the two cloth-closing rollers (2) is adapted to the thickness of the mask, and the cloth-closing roller (2) and the guide roller (21) cooperate; the cloth-closing motor is connected to the rotating shaft of the cloth-closing roller (2); the multi-line hot pressing device comprises a hot pressing roller (22), three first hot pressing heads, two second hot pressing heads, a pressing motor, and a heating device; the hot pressing roller (22) is arranged between the two guide rollers (21), its axis is parallel to the axis of the guide roller (21), and its two end shafts are connected to the bearings of the frame (1); the pressing motor is connected to the rotating shaft of the hot pressing roller (22); the first hot pressing head is an annular protrusion, which is sleeved on the surface of the hot pressing roller (22) and is arranged at intervals along the axis of the hot pressing roller (22), and the distance between two adjacent first hot pressing heads is adapted to the shape of the mask, the first hot pressing head is connected to the heating device, and the first hot pressing head cooperates with the raw material cloth; a plurality of second hot pressing heads are strip-shaped protrusions, which are arranged along the hot pressing roller ( The axial direction of the hot pressing roller (22) is arranged on the side of the hot pressing roller (22), the distance between two adjacent second hot pressing heads is adapted to the shape of the mask, and the second hot pressing heads are connected to the heating device; the first cutting device comprises a mounting plate and three blades (23); the mounting plate is arranged between the two guide rollers (21), and is arranged on the side of the multi-line hot pressing device along the conveying direction of the raw cloth; a plurality of blades (23) are fixed to the lower part of the mounting plate, and are arranged at intervals along the axial direction of the hot pressing roller (22), and correspond to a plurality of first hot pressing heads; the control system is connected to the multi-line hot pressing device, the first cutting device, the second cutting device, and the conveying device, and the control panel is connected to the control system. The heating device can use electric heating wire heating or ultrasonic heating. The cloth closing roller (2) cooperates with the guide roller (21) to convey the raw cloth. The first hot pressing head and the second hot pressing head cooperate with the raw cloth to form a rectangular pressing edge on the raw cloth.

[0029] Two non-woven fabrics and one melt-blown fabric are connected between two cloth-combining rollers (2), and the formed raw fabric passes through the bottom of the guide roller (21), the first hot pressing head and the second hot pressing head, the blade (23), and the bottom of the guide roller (21) in sequence and enters the second cutting device. A plurality of first hot pressing heads and a plurality of second hot pressing heads are provided, and are used to form rectangular pressing edges on the raw fabric through the rotation of the pressing motor. A blade (23) is provided to cut the raw fabric into strips along the center of the pressing edge. The pressing device can process raw fabrics of different widths to form mask stacks with different numbers of laminates.

[0030] The second cutting device comprises two separation rollers (25), two conveying rollers (81), two waste reels (27), a driving motor, a cutting device, and an output conveyor belt (10); a plurality of separation rollers (25) are arranged on the other side of the guide roller (21), are higher than the guide roller (21), and their axes are parallel to the axis of the guide roller (21); the plurality of separation rollers (25) are arranged along the axis direction of the guide roller (21), and their heights are successively decreased along the axis direction of the guide roller (21); the plurality of separation rollers (25) cooperate with the guide roller (21), and two first limit plates (24) are sleeved on the separation roller (25). The two first limit plates (24) are The distance between the positioning plates (24) is adapted to the shape of the mask; the two conveying rollers (81) are arranged on the side of the plurality of separation rollers (25), are lower than the separation rollers (25), and are matched with the plurality of separation rollers (25), and their axes are parallel to the axes of the separation rollers (25), and the distance between the two conveying rollers (81) is matched with the mask; the cutting device is arranged on the side of the conveying roller (81) and is matched with the conveying roller (81); the output conveyor belt (10) is arranged on the side of the cutting device and is matched with the cutting device; two waste reels (27) are arranged on both sides of the plurality of separation rollers (25), and the waste reels (27) are connected to a recycling motor. The plurality of separation rollers (25) are matched with the guide roller (21) to convey the strip cloth. The distance between the two conveying rollers (81) is matched with the mask, and the multi-layer strip cloth is pressed and conveyed.

[0031] Manually laminating masks is very time-consuming and laborious. After the raw cloth is cut into two strips and two waste cloths, the strips are passed over a plurality of separation rollers (25) and then combined between two conveying rollers (81) to achieve lamination. The strips are then passed through a cutting device to form a rectangular mask. The two waste cloths on the outside are rolled onto two waste reels (27) and rolled up by a recycling motor. The positional relationship between the plurality of separation rollers (25) is designed so that the edges of the laminated strips overlap. A separation roller (25) is provided to prevent the lamination process from causing wrinkles in the raw cloth during transmission.

[0032] like Figure 3As shown, the second cutting device includes a compensation roller (7), two rotating rods (71), and a stacking conveying device; the stacking conveying device is arranged between a plurality of separation rollers (25) and a conveying roller (81), and cooperates with the separation roller (25) and the conveying roller (81) respectively; the compensation roller (7) is arranged between the stacking conveying device and the conveying roller (81), is lower than the stacking conveying device and lower than the conveying roller (81), and its axis is parallel to the axis of the conveying roller (81); the rotating rod (71) is obliquely arranged on both sides of the mask, the upper ends of the two rotating rods (71) are connected to the two end shafts of the compensation roller (7) through bearings, and the lower ends are rotatably hinged with the frame (1). The stacking conveying device cooperates with the separation roller (25) and the conveying roller (81) respectively to convey the strip cloth.

[0033] If the multi-layer strips of cloth are directly cut during the movement, an inclined cutting surface is likely to be produced. If the conveying device is used for intermittent transmission, the edge pressing effect of the multi-line hot pressing device will be uneven. The strips of cloth passing through the separation roller (25) pass through the stacking conveying device, the bottom of the compensation roller (7), the two conveying rollers (81), and the cutting device in sequence. When the mask cutting process is required, the two conveying rollers (81) are stopped by the driving motor, and the length of the strips of cloth between the stacking conveying device and the two conveying rollers (81) gradually increases, so that the compensation roller (7) moves downward under the action of gravity, and the rotating rod (71) rotates, so that the multi-layer strips of cloth maintain a tight state. When the cutting process is completed, the driving motor is started to rotate the two conveying rollers (81), so that the length of the strips of cloth between the stacking conveying device and the two conveying rollers (81) gradually decreases, so that the compensation roller (7) moves upward, and the rotating rod (71) rotates. It is necessary to design the power of the driving motor so that the compensation roller (7) performs periodic movement.

[0034] The second cutting device comprises a weight ring (74), a screw rod, a torsion plate (72), and a nut (73); a threaded hole is provided in the middle of the rotating rod (71); the screw rod passes through the two threaded holes, and an external thread is provided on the screw rod, and the external thread is adapted to the threaded hole; the nut (73) is sleeved on the screw rod and is located outside the rotating rod (71); the torsion plate (72) is fixed to the screw rod and is located outside the rotating rod (71); four arc-shaped concave surfaces are provided on the side surface of the torsion plate (72); and a rubber layer is provided on the side surface of the torsion plate (72); a plurality of weight rings (74) are sleeved on the screw rod and are located between the two rotating rods (71); the inner diameter of the weight ring (74) is larger than the diameter of the screw rod; a plurality of annular protrusions are provided on the inner side surface of the weight ring (74), and the spacing between adjacent annular protrusions is adapted to the external thread.

[0035] When the number of layers of the multi-layer strip cloth changes, the tension inside the multi-layer strip cloth needs to be adjusted. When the counterweight adjustment is needed, the nut (73) is rotated and removed, and then the torsion plate (72) is turned to rotate the screw rod and separate it from the rotating rod (71) on one side, and then the counterweight ring (74) of the corresponding weight is put on the screw rod, and then the torsion plate (72) is rotated in the opposite direction and fixed with the nut (73), and then the counterweight ring (74) is moved to the center position. A plurality of annular protrusions are provided on the inner side of the counterweight ring (74) for engaging with the thread to prevent the counterweight ring (74) from moving to the sides.

[0036] like Figure 2 As shown, the lamination conveying device comprises an upper lamination roller (61), a lower lamination roller (62), two second limit plates (6), two third limit plates (8), two second slideways, two third slideways, two second sliders, two third sliders, two second cylinders (63), two third cylinders, and a lamination motor; the second limit plate (6) is fixed on the frame (1), the two second limit plates (6) are arranged oppositely and in parallel, the inner side surface of the second limit plate (6) is a limit surface, the limit surface is a smooth surface, the limit surface is perpendicular to the axis of the separation roller (25), the side of the limit surface close to the separation roller (25) is an arc surface, bent outward, and matched with a plurality of separation rollers (25); the upper lamination roller (61) is arranged between the two limit surfaces, the rotating shafts at both ends of the upper lamination roller (6) are connected to the bearings of the second limit plate (6), and the side surface of the upper lamination roller (61) is connected to the limit surface; the lamination motor is connected to the rotating shaft of the upper lamination roller (61); the two limit plates (6) are connected to the bearings of the second limit plate (6), and the side surface of the upper lamination roller (61) is connected to the limit surface; the lamination motor is connected to the rotating shaft of the upper lamination roller (61); The second slideway is a T-shaped groove, which is arranged on the limiting surface and is arranged along the radial direction of the upper lamination roller (61); the second slider is arranged in the second slideway; the lower lamination roller (62) is arranged below the upper lamination roller (61), and its two end shafts are respectively connected to the two second slider bearings, and the surface of the lower lamination roller (62) is in contact with the limiting surface; the second cylinder (63) is arranged in the second slideway, and its telescopic end is fixed to the second slider; the third limiting plate (8) is fixed to the frame (1), and the two third limiting plates (8) are arranged oppositely and in parallel; the two third slideways are T-shaped grooves, which are arranged on the inner side of the third limiting plate (8); the third slider is arranged in the third slideway; the two end shafts of a conveying roller (81) are connected to the bearings of the third limiting plate (8), and the other conveying roller (81) is located above, and its two end shafts are connected to the bearings of the third slider; the third cylinder is arranged in the third slideway, and its telescopic end is fixed to the third slider. The side of the limiting surface close to the separation roller (25) is an arc surface, which is bent outward and cooperates with a plurality of separation rollers (25) to reduce the wear of the strip cloth of the second limiting plate (6).

[0037] The conveying roller (81) and the lamination conveying device need to adapt to multi-layer strips of cloth with different numbers of layers. The plurality of strips of cloth that have passed through the separation roller (25) are overlapped and conveyed between the upper lamination roller (61) and the lower lamination roller (62), and are combined into multi-layer strips of cloth under the action of the second limit plate (6). When it is necessary to adjust the distance between the upper lamination roller (61) and the lower lamination roller (62), the second cylinder (63) is controlled to be extended and retracted, so that the second slider moves, and the lower lamination roller (62) moves. When it is necessary to adjust the distance between the two conveying rollers (81), the third cylinder is controlled to be extended and retracted, so that the third slider moves, and the upper conveying roller (81) moves.

[0038] like Figure 4 As shown, the cutting device includes a pressure cutting table (92), an output conveyor belt (10), a first cutter (98), a lifting plate (93), a lifting cylinder (9), two clamping devices, a first acquisition camera, and a cutting groove; the upper surface of the pressure cutting table (92) is a smooth surface, located on the side of the conveyor roller (81), one side cooperates with the conveyor roller (81), and the other side cooperates with the output conveyor belt (10), and the upper surface of the pressure cutting table (92) and the upper surface of the output conveyor belt (10) are in the same horizontal plane; a plurality of lifting devices are provided. The cylinder (9) is vertically arranged above the pressing and cutting platform (92); the lifting plate (93) is horizontally arranged below the lifting cylinder (9) and fixed to the telescopic ends of the lifting cylinders (9); the first cutter (98) is arranged directly above the pressing and cutting platform (92) and fixed to the lower part of the lifting plate (93); the cutting groove is arranged on the pressing and cutting platform (92) and is adapted to the blade of the first cutter (98); two pressing devices are arranged above the pressing and cutting platform (92) and are located on both sides of the first cutter (98); the first acquisition camera faces the mask. One side of the upper surface of the pressing and cutting platform (92) cooperates with the conveying roller (81) and the other side cooperates with the output conveyor belt (10). After the multi-layer strip cloth is pressed and cut, it is conveyed to the output conveyor belt (10).

[0039] If a clamping device is not provided to clamp the masks, the stacks of masks cut out by compression will be offset from each other under the action of elasticity, so that alignment will be required when adding ear ropes later, which consumes manpower and material resources. The multi-layer strip portion passing through the conveying roller (81) passes through the pressing and cutting table (92) and is connected to the output conveyor belt (10). When the first acquisition camera detects that the edge pressing reaches below the first cutter (98), the output conveyor belt (10) and the conveying roller (81) are controlled to stop, and the two clamping devices are controlled to clamp the multi-layer strip cloth, and then the lifting cylinder (9) is controlled to extend to below the lifting plate (93) and below the first cutter (98), and the multi-layer strip cloth is cut off, and then the first cutter (98) is raised by the lifting cylinder (9), and then the clamping device is controlled to loosen the mask, and the output conveyor belt (10) is started to convey the stack of masks out.

[0040] The cutting device comprises two side plates (91) and a top plate (99); the two side plates (91) are fixed on the pressure cutting platform (92) and are located on both sides of the mask; the top plate (99) is fixed on the upper parts of the two side plates (91); a communication port is provided on the top plate (99), the communication port cooperates with the first cutting knife (98); two receiving grooves are provided on the bottom surface of the top plate (99), and the two receiving grooves are respectively located on both sides of the first cutting knife (98); the pressing device comprises two first springs (95), a pressing plate (97), two first pressing rods (96), and two second pressing rods (94); the pressing plate (97) is arranged in the receiving groove and is in contact with the receiving groove. Correspondingly, the bottom surface of the pressing plate (97) and the bottom surface of the top plate (99) are in the same plane; a plurality of first pressing rods (96) are vertically fixed to the upper part of the pressing plate (97), and the upper ends thereof penetrate upwardly through the top plate (99); a rubber layer is provided on the top surface of the first pressing rod (96), and a pressing groove is provided on the top surface of the first pressing rod (96); a first spring (95) is provided in the pressing groove, and the first spring (95) is fixed to the inner bottom surface of the pressing groove; a second pressing rod (94) is vertically fixed to the lower part of the lifting plate (93), and the lower end thereof is in the pressing groove and is adapted to the pressing groove, and the second pressing rod (94) is fixed to the upper end of the first spring (95). The communication port cooperates with the first cutter (98) to allow the first cutter (98) to pass through.

[0041] Combining the movement of the clamping device and the first cutter (98) can save energy. When the lifting plate (93) moves downward, it drives the second pressure rod (94) to move downward, causing the first pressure rod (96) to move downward, and causing the pressure plate (97) to move downward. After the pressure plate (97) is pressed onto the mask, the first spring (95) is compressed to elastically clamp the mask, so that stacks of masks with different numbers of layers can be clamped. When the lifting plate (93) moves upward, it drives the second pressure rod (94) to move upward, and the first pressure rod (96) is moved upward through the first spring (95), so that the pressure plate (97) returns to the clamping groove. Side plates (91) and top plates (99) are provided to prevent the masks from spreading.

[0042] The second cutting device comprises two hydraulic cylinders (26), two pressure sensors, and two separation support frames. The plurality of hydraulic cylinders (26) correspond to the plurality of separation rollers (25), and the hydraulic cylinders (26) are vertically arranged below the corresponding separation rollers (25). The pressure sensors are arranged above the hydraulic cylinders (26) and fixed to the telescopic ends of the hydraulic cylinders (26). The separation support frames are fixed to the pressure sensors. The rotating shafts at both ends of the separation rollers (25) are connected to the bearings of the separation support frames.

[0043] When the hydraulic cylinder (26) is extended and retracted, the edge pressing position of the corresponding strip cloth is adjusted during lamination, so that the multiple layers of strip cloth are aligned. A pressure sensor is provided to prevent the strip cloth from breaking due to excessive tension.

[0044] like Figure 5As shown, the second cutting device comprises an auxiliary reel (5), an auxiliary motor, a clamp, a fixing device, a wire cylinder (42), a fourth slider (43), a fourth cylinder, and a fixing seat (4); the auxiliary reel (5) is arranged on the side of the separation roller (25); the auxiliary motor is connected to the rotating shaft of the auxiliary reel (5); the clamp is arranged on the auxiliary reel (5); the fixing seat (4) is arranged between the separation roller (25) and the auxiliary reel (5), lower than the separation roller (25) and lower than the auxiliary reel (5), and a fixing opening is arranged in the fixing seat (4), the fixing opening is a through opening, adapted to the width of the raw material cloth, the inner top surface of the fixing opening is a smooth surface, and a third slide is arranged on the inner bottom surface of the fixing opening; the lead screw is arranged in the third slide and is parallel to the axis of the separation roller (25), and the lead screw is connected to the fourth motor (41); the fourth slider (43) is arranged in the third slide and sleeved on the lead screw; the fixing device is fixed to the upper part of the fourth slider (43).

[0045] Before edge pressing, it is very difficult to align the edge pressing of several strips of cloth. Before edge pressing, several hydraulic cylinders (26) are controlled to contract, and the staff passes the raw cloth between the two cloth-closing rollers (2), passes through the two guide rollers (21), the top of the separation roller (25), and the fixing port in sequence, and then fixes it on the auxiliary reel (5) through a clip, and then the hot pressing platform (3) is moved upward by the supporting cylinder (31) to cooperate with the two guide rollers (21), and then the auxiliary motor is started to convey the raw cloth, and the raw cloth passes through the multi-line hot pressing device and the first cutting device to form several strips of cloth. After that, the staff controls several hydraulic cylinders (26) to extend through the control panel, so that several separation rollers (25) move upward and connect with the corresponding strips of cloth until the detection value of the pressure sensor reaches the set value. Then, the several strips of cloth are overlapped and fixed together in sequence through the fixing device and the lead screw.

[0046] The fixing device comprises a fixing cylinder (44), a second cutter (48), two fixing rods (47), an electromagnet (45), a limiting protrusion, an adsorption plate (46), and a second acquisition camera; the fixing cylinder (44) is vertically arranged above the fourth slider (43) and fixed to the fourth slider (43); the telescopic end of the fixing cylinder (44) is a telescopic rod; a plurality of limiting protrusions are arranged on the top surface of the telescopic rod; the adsorption plate (46) is made of ferromagnetic material and is arranged above the telescopic rod; a plurality of limiting grooves are arranged on the bottom surface of the adsorption plate (46), and the limiting grooves are adapted to the limiting protrusions; a plurality of fixing rods (47) are vertically arranged It is placed above the adsorption plate (46), fixed to the adsorption plate (46), and matched with the mask. The side surface of the fixed rod (47) is a rough surface, and the upper end of the fixed rod (47) is a smooth conical end. The second cutter (48) is arranged on the side of the adsorption plate (46) along the conveying direction of the mask, fixed to the telescopic rod, and the blade of the second cutter (48) faces upward and matches with the inner top surface of the fixed port. The electromagnet (45) is arranged in the telescopic rod. A plurality of penetration grooves are arranged on the inner top surface of the fixed port, and the penetration grooves match with the fixed rod (47). The second acquisition camera is arranged on the fourth slider (43) and faces upward. A plurality of fixed rods (47) match with the mask, and only one mask is penetrated at a time. The penetration grooves match with the fixed rod (47), so that the upper end of the fixed rod (47) can enter the penetration grooves.

[0047] When overlapping, aligning and fixing a plurality of strips of cloth, when the second acquisition camera detects the edge pressing of the outermost strip of cloth, the auxiliary motor and the cloth closing motor are controlled to stop, and then the fixed cylinder (44) is controlled to extend, so that the adsorption plate (46) moves upward, so that the plurality of fixed rods (47) move upward to pierce the outermost strip of cloth, and cut the corresponding strip of cloth. Then the fixed cylinder (44) is controlled to contract, and the fixed rod (47) is moved to one side by a distance of a mask through the lead screw, and then the auxiliary motor and the cloth closing motor are started. When the second acquisition camera detects the edge pressing of the corresponding strip of cloth, the auxiliary motor and the cloth closing motor are controlled to stop, so that the fixed rod (47) pierces the corresponding strip of cloth, and cuts the corresponding strip of cloth. The above process is repeated until all the strips of cloth are aligned and fixed. Then the electromagnet (45) is turned off, the waste cloth is cut and rolled onto the waste reel (27). After that, the staff removes the adsorption plate (46) and passes the aligned multi-layer strips of cloth through the lamination roller, the compensation roller (7), and the conveying roller (81) in sequence. During this process, the staff can assist by controlling the second cylinder (63) and the third cylinder. During the above process, the plurality of hydraulic cylinders (26) always adapt to the corresponding strips of cloth according to the detection data of the pressure sensor, so that the strips of cloth are always in a taut state and closely attached to the separation roller (25). There are also waste cloths on both sides of some of the strips of cloth.

[0048] The working process of this embodiment is as follows: before edge pressing, the hydraulic cylinders (26) are controlled to contract, and two non-woven fabrics and one melt-blown fabric are connected between the two cloth-closing rollers (2). The staff sequentially passes the formed raw fabric under the guide roller (21), the first hot pressing head and the second hot pressing head, the blade (23), the under the guide roller (21), the top of the separation roller (25), and the fixing port, and then fixes it on the auxiliary reel (5) through a clip. Then, the hot pressing platform (3) is moved upward through the supporting cylinder (31) to cooperate with the two guide rollers (21), and then the auxiliary motor is started to convey the raw fabric. The raw fabric passes through the multi-line hot pressing device and the first cutting device to form a plurality of strips of fabric. After that, the staff controls the hydraulic cylinders (26) to extend through the control panel, so that the separation rollers (25) move upward and connect with the corresponding strips of fabric until the detection value of the pressure sensor reaches the set value. When the second acquisition camera detects the edge pressing of the outermost strip of cloth, the auxiliary motor and the cloth closing motor are controlled to stop, and then the fixed cylinder (44) is controlled to extend, so that the adsorption plate (46) moves upward, so that the plurality of fixed rods (47) move upward to pierce the outermost strip of cloth, and cut the corresponding strip of cloth. Then the fixed cylinder (44) is controlled to contract, and the fixed rod (47) is moved to one side by a distance of a mask through the lead screw, and then the auxiliary motor and the cloth closing motor are started. When the second acquisition camera detects the edge pressing of the corresponding strip of cloth, the auxiliary motor and the cloth closing motor are controlled to stop, so that the fixed rod (47) pierces the corresponding strip of cloth, and cuts the corresponding strip of cloth. The above process is repeated until all the strips of cloth are aligned and fixed. Then the electromagnet (45) is turned off, the waste cloth is cut and rolled onto the waste reel (27). After that, the staff removes the suction plate (46) and passes the aligned multi-layer strips of cloth through the lamination roller, the compensation roller (7), and the conveying roller (81) in sequence. During this process, the staff can assist by controlling the second cylinder (63) and the third cylinder. Then, the edge pressing device is started.

[0049] After the raw cloth is cut into a plurality of strips and two waste cloths, the plurality of strips pass through the top of a plurality of separation rollers (25), the upper lamination roller (61) and the lower lamination roller (62), the bottom of the compensation roller (7), the two conveying rollers (81), between the two side plates (91), and the output conveyor belt (10). Then, the plurality of strips pass through the cutting device to form a rectangular mask. The two waste cloths on the outside are rolled up onto the two waste reels (27) and rolled up by the recovery motor. The plurality of strips that pass through the separation roller (25) are overlapped and conveyed between the upper lamination roller (61) and the lower lamination roller (62), and are combined into a plurality of strips under the action of the second limit plate (6). The multi-layer strips that pass through the conveying roller (81) pass through the pressing and cutting table (92) and are connected to the output conveyor belt (10). When the first acquisition camera detects that the edge pressing reaches below the first cutter (98), the output conveyor belt (10) and the conveying roller (81) are controlled to stop, and the two clamping devices are controlled to clamp the multi-layer strip cloth, and then the lifting cylinder (9) is controlled to extend to move below the lifting plate (93) and below the first cutter (98) to cut the multi-layer strip cloth, and then the first cutter (98) is raised by the lifting cylinder (9), and then the clamping device is controlled to loosen the mask, and the output conveyor belt (10) is started to convey the stack of masks out. When the lifting plate (93) moves downward, it drives the second pressure rod (94) to move downward, so that the first pressure rod (96) moves downward, and the pressure plate (97) moves downward. After the pressure plate (97) is pressed onto the mask, the first spring (95) is compressed to elastically clamp the mask, and stacks of masks with different numbers of layers can be clamped. When the lifting plate (93) moves upward, it drives the second pressing rod (94) to move upward, and the first pressing rod (96) moves upward through the first spring (95), so that the pressing plate (97) returns to the pressing groove.

[0050] When the distance between the upper lamination roller (61) and the lower lamination roller (62) needs to be adjusted, the second cylinder (63) is controlled to be extended or retracted, so that the second slider moves, thereby moving the lower lamination roller (62). When the distance between the two conveying rollers (81) needs to be adjusted, the third cylinder is controlled to be extended or retracted, so that the third slider moves, thereby moving the upper conveying roller (81).

[0051] When the counterweight adjustment is required, the nut (73) is rotated and removed, and then the torsion plate (72) is rotated to rotate the screw rod and separate it from the rotating rod (71) on one side, and then the counterweight ring (74) of the corresponding weight is put on the screw rod, and then the torsion plate (72) is rotated in the opposite direction and fixed with the nut (73), and then the counterweight ring (74) is moved to the center position. A plurality of annular protrusions are provided on the inner side of the counterweight ring (74) for engaging with the thread to prevent the counterweight ring (74) from moving to the sides.

[0052] When the mask cutting process is required, the two conveying rollers (81) are stopped by the driving motor, and the length of the strip cloth between the stacking conveying device and the two conveying rollers (81) gradually increases, so that the compensation roller (7) moves downward under the action of gravity, and the rotating rod (71) rotates, so that the multi-layer strip cloth maintains a tight state. When the cutting process is completed, the driving motor is started to rotate the two conveying rollers (81), so that the length of the strip cloth between the stacking conveying device and the two conveying rollers (81) gradually decreases, so that the compensation roller (7) moves upward, and the rotating rod (71) rotates.

[0053] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A multi-line synchronous mask edge pressing device, characterized in that: include: A multi-line hot pressing device, a hot pressing platform (3), a frame (1), a first cutting device, a second cutting device, a conveying device, a control system, and a control panel; the hot pressing platform (3) is fixed on the frame (1), and its upper surface is a smooth surface; a plurality of supporting cylinders (31) are vertically arranged below the hot pressing platform (3), and the telescopic ends of the supporting cylinders (31) are fixed to the hot pressing platform (3); the conveying device comprises two guide rollers (21), two cloth closing rollers (2), and two cloth closing motors; the two guide rollers (21) are arranged above the hot pressing platform (3), and the rotating shafts at both ends are connected to the bearings of the frame (1); The axis of the guide roller (21) is parallel to the upper surface of the hot pressing platform (3), the distance between the lower part of the guide roller (21) and the upper surface of the hot pressing platform (3) is adapted to the thickness of the mask, and the two guide rollers (21) are parallel to each other; the two cloth-closing rollers (2) are arranged on one side of the guide roller (21), are higher than the guide roller (21), and the rotating shafts at both ends are connected to the bearings of the frame (1), the axis of the cloth-closing roller (2) is parallel to the axis of the guide roller (21), the distance between the two cloth-closing rollers (2) is adapted to the thickness of the mask, and the cloth-closing roller (2) cooperates with the guide roller (21); The cloth closing motor is connected to the rotating shaft of the cloth closing roller (2); the multi-line hot pressing device comprises a hot pressing roller (22), a plurality of first hot pressing heads, a plurality of second hot pressing heads, a pressing motor, and a heating device; the hot pressing roller (22) is arranged between the two guide rollers (21), its axis is parallel to the axis of the guide roller (21), and its two end rotating shafts are connected to the bearings of the frame (1); the pressing motor is connected to the rotating shaft of the hot pressing roller (22); the first hot pressing head is an annular protrusion, which is sleeved on the surface of the hot pressing roller (22) and is arranged at intervals along the axis of the hot pressing roller (22), and the distance between two adjacent first hot pressing heads is adapted to the shape of the mask, the first hot pressing head is connected to the heating device, and the first hot pressing head cooperates with the raw cloth; the plurality of second hot pressing heads The hot pressing roller (22) is a strip-shaped protrusion, which is arranged on the side of the hot pressing roller (22) along the axial direction of the hot pressing roller (22), the distance between two adjacent second hot pressing heads is adapted to the shape of the mask, and the second hot pressing heads are connected to the heating device; the first cutting device comprises a mounting plate and a plurality of blades (23); the mounting plate is arranged between the two guide rollers (21) and is arranged on the side of the multi-line hot pressing device along the conveying direction of the raw material cloth; the plurality of blades (23) are fixed to the lower part of the mounting plate, are arranged at intervals along the axial direction of the hot pressing roller (22), and correspond to the plurality of first hot pressing heads; the control system is connected to the multi-line hot pressing device, the first cutting device, the second cutting device, and the conveying device, and the control panel is connected to the control system; The second cutting device comprises a plurality of separation rollers (25), two conveying rollers (81), two waste reels (27), a driving motor, a cutting device, and an output conveyor belt (10); the plurality of separation rollers (25) are arranged on the other side of the guide roller (21), are higher than the guide roller (21), and their axes are parallel to the axis of the guide roller (21); the plurality of separation rollers (25) are arranged along the axis direction of the guide roller (21), and their heights decrease successively along the axis direction of the guide roller (21); the plurality of separation rollers (25) cooperate with the guide roller (21), and two first limit plates (24) are sleeved on the separation roller (25); the two first limit plates (24) The distance between the two conveying rollers (81) is adapted to the shape of the mask; the two conveying rollers (81) are arranged on the side of the plurality of separation rollers (25), are lower than the separation rollers (25), and are matched with the plurality of separation rollers (25), and their axes are parallel to the axes of the separation rollers (25), and the distance between the two conveying rollers (81) is matched with the mask; the cutting device is arranged on the side of the conveying roller (81) and is matched with the conveying roller (81); the output conveyor belt (10) is arranged on the side of the cutting device and is matched with the cutting device; two waste reels (27) are arranged on both sides of the plurality of separation rollers (25), and the waste reels (27) are connected with a recycling motor; The second cutting device comprises a compensation roller (7), two rotating rods (71), and a stacking conveying device; the stacking conveying device is arranged between a plurality of the separation rollers (25) and the conveying rollers (81), and cooperates with the separation rollers (25) and the conveying rollers (81) respectively; the compensation roller (7) is arranged between the stacking conveying device and the conveying rollers (81), is lower than the stacking conveying device and lower than the conveying rollers (81), and its axis is parallel to the axis of the conveying rollers (81); the rotating rods (71) are obliquely arranged on both sides of the mask, the upper ends of the two rotating rods (71) are connected to the two end shafts of the compensation roller (7) through bearings, and the lower ends are rotatably hinged to the frame (1); The second cutting device comprises a plurality of counterweight rings (74), a screw rod, a torsion plate (72), and a nut (73); a threaded hole is provided in the middle of the rotating rod (71); the screw rod passes through the two threaded holes, and an external thread is provided on the screw rod, and the external thread is adapted to the threaded hole; the nut (73) is sleeved on the screw rod and is located outside the rotating rod (71); the torsion plate (72) is fixed to the screw rod and is located outside the rotating rod (71); a plurality of arc-shaped concave surfaces are provided on the side surface of the torsion plate (72), and a rubber layer is provided on the side surface of the torsion plate (72); a plurality of counterweight rings (74) are sleeved on the screw rod and are located between the two rotating rods (71); the inner diameter of the counterweight ring (74) is larger than the diameter of the screw rod; a plurality of annular protrusions are provided on the inner side surface of the counterweight ring (74), and the spacing between adjacent annular protrusions is adapted to the external thread; The lamination conveying device comprises an upper lamination roller (61), a lower lamination roller (62), two second limit plates (6), two third limit plates (8), two second slideways, two third slideways, two second sliders, two third sliders, two second cylinders (63), two third cylinders, and a lamination motor; the second limit plate (6) is fixed on the frame (1), the two second limit plates (6) are arranged opposite to each other and in parallel, the inner side surface of the second limit plate (6) is a limit surface, the limit surface is a smooth surface, the limit surface is perpendicular to the axis of the separation roller (25), the side of the limit surface close to the separation roller (25) is an arc surface, which is bent outward and matched with a plurality of separation rollers (25); the upper lamination roller (61) is arranged between the two limiting surfaces, and the rotating shafts at both ends thereof are connected to the bearings of the second limiting plate (6), and the side surface of the upper lamination roller (61) is connected to the limiting surface; the lamination motor is connected to the rotating shaft of the upper lamination roller (61); the two second slideways are T-shaped grooves, which are arranged on the limiting surface and arranged along the radial direction of the upper lamination roller (61); the second slider is arranged in the second slideway; the lower lamination roller (62) is arranged below the upper lamination roller (61), and the rotating shafts at both ends thereof are respectively connected to the bearings of the two second sliders, and the surface of the lower lamination roller (62) is connected to the limiting surface; the second cylinder (63) is arranged in the second slideway, and its telescopic end is fixed to the second slider; The third limit plate (8) is fixed on the frame (1), and the two third limit plates (8) are arranged opposite to each other and in parallel; the two third slideways are T-shaped grooves, which are arranged on the inner side of the third limit plate (8); the third slider is arranged in the third slideway; the two end shafts of one conveying roller (81) are connected to the bearings of the third limit plate (8), and the other conveying roller (81) is located above, and the two end shafts of the third slider are connected to the bearings of the third slider; the third cylinder is arranged in the third slideway, and its telescopic end is fixed to the third slider.

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