A method for using a mask machine for producing masks without ear hanging ropes

Abstract

The present invention discloses a mask machine for producing earless hanging rope masks and a method for using the same. The material rack is an inverted T-shaped frame structure arranged vertically and horizontally, and a workbench is provided in the middle thereof; four face cloth unwinding assemblies are respectively provided on the left and right sides directly above the workbench, and a first adjustable tension feeding rack is respectively provided on one side of the face cloth unwinding assembly, and the fabric is fed through the first adjustable tension feeding rack and assembled on the second adjustable tension feeding rack; a left cover body welding assembly, a right cover body welding assembly and an edge sealing welding assembly are provided in a T-shape directly above the workbench, and a mask cutting and forming assembly is provided on one side of the edge sealing welding assembly, and a conveyor belt is provided on one side of the mask cutting and forming assembly; after two groups of four layers of fabric are welded respectively, the edge sealing welding assembly is used for edge sealing and welding, and then the mask cutting and forming assembly is used for cutting and forming, and the fabric is conveyed by the conveyor belt. The overall structure of the present invention adopts a T-shaped structural design and a U-shaped transmission design, so that the traction force is symmetrical and it is not easy to form a phase difference.

Description

Technical Field

[0001] The invention relates to the technical field of mask production equipment, and in particular to a method for using a mask machine for producing masks without ear hanging ropes. Background Art

[0002] In the current mask production, ear straps and nose bridge parts require separate process modules, which have complex structures and are difficult to debug. They are also affected by factors such as unstable air pressure. In the actual production process, there are problems such as low ear strap welding efficiency, low ear strap welding yield, and high failure rate, which restrict the production capacity of mask machines.

[0003] In addition, when the existing high-speed mask machine is running at high speed, there is a problem of inconsistent molding due to the cumulative error of the mask welding position, which requires manual continuous adjustment of the machine, thus affecting the production capacity of the mask machine; at the same time, when running at high speed, due to the high speed, the welding time is too short, the welding effect is not ideal, and the yield rate is low, which will also affect the production capacity of the mask machine. Therefore, the above problems need to be solved urgently. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for using a mask machine for producing earless masks. The overall structure adopts a T-shaped structural design and a U-shaped transmission design. By adopting one group of large Ts and four groups of small Ts, the traction force is symmetrical, the consistency is high, and it is not easy to form a phase difference.

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a method for using a mask machine for producing earless hanging rope masks of the present invention, the innovation of which lies in: the mask machine comprises a material rack, a workbench, a face cloth unwinding assembly, a first adjustable tension material rack, an adjustable tension device, a left mask body welding assembly, a right mask body welding assembly, an edge sealing welding assembly, a mask cutting and forming assembly and a conveyor belt; the material rack is an inverted T-shaped frame structure arranged vertically and horizontally, and a workbench is also horizontally arranged horizontally at the lower middle position of the front side; four face cloth unwinding assemblies are vertically symmetrically arranged on the left and right sides directly above the workbench, and each of the face cloth unwinding assemblies is rotatably connected to the vertical side of the material rack; a first adjustable tension material rack is vertically fixed on one side of each of the face cloth unwinding assemblies, and a second adjustable tension material rack is vertically symmetrically arranged on the left and right sides directly above the workbench, each of the second adjustable tension material racks is vertically fixed on the left and right sides of the workbench, The tension-adjustable material feeding racks are respectively fixedly connected to the top ends of the vertical sides of the material racks, and the mask fabrics on each of the face cloth unwinding assemblies are respectively fed through the corresponding first adjustable tension material feeding racks, and are respectively combined together on the corresponding second adjustable tension material feeding racks; a left cover body welding assembly, a right cover body welding assembly and an edge-sealing welding assembly are also vertically fixed in a T-shape directly above the workbench, the left cover body welding assembly and the right cover body welding assembly are symmetrically arranged, and a mask cutting and forming assembly is also vertically spaced on one side of the edge-sealing welding assembly, and a conveyor belt is also horizontally arranged on one side of the mask cutting and forming assembly; the two groups of four-layer fabrics after combination are respectively welded through the corresponding left cover body welding assembly and the right cover body welding assembly, and then spliced ​​together for edge-sealing welding by the edge-sealing welding assembly, and then cut and formed by the mask cutting and forming assembly, and transported by the conveyor belt;

[0006] Each of the face cloth unwinding assemblies provided with elastic cloth is arranged on the outside relative to the other three corresponding face cloth unwinding assemblies, and each of the face cloth unwinding assemblies includes a feeding wheel and a tension control and correction device. Each of the feeding wheels is arranged vertically, and a tension control and correction device is also sleeved at its center position, and the position correction and tension adjustment of the mask fabric are performed through the tension control and correction device; each of the tension control and correction devices includes a correction brake unwinding rack, an electromagnetic tension controller and a correction motor, one end of each of the correction brake unwinding racks is sleeved with the center position of the corresponding feeding wheel, and the two are rotatably connected respectively, and the other end of each of the correction brake unwinding racks vertically extends out of the vertical edge of the rack, and is respectively linked to the output end of the corresponding correction motor through the electromagnetic tension controller;

[0007] The left cover body welding assembly is arranged directly below the second adjustable tension material feeding rack on the left, and comprises a first servo motor, a left cover body welding roller and three first pulling rollers; the three first pulling rollers are respectively and sequentially arranged horizontally and parallelly in close contact, and are respectively and vertically rotatably connected to the vertical sides of the material feeding rack; a left cover body welding roller is also arranged horizontally and spaced directly below the middle first pulling roller, the left cover body welding roller is arranged in a T shape with the three first pulling rollers, and is linked to the output end of the first servo motor, and welds the four layers of fabric after being assembled by the second adjustable tension material feeding rack on the left;

[0008] The right cover body welding assembly is arranged directly below the second adjustable tension material feeding rack on the right, and comprises a second servo motor, a right cover body welding roller and three second traction rollers; the three second traction rollers are respectively arranged horizontally and parallelly in sequence, and are respectively connected to the vertical sides of the material feeding rack for vertical rotation; a right cover body welding roller is also arranged horizontally and spaced directly below the middle second traction roller, the right cover body welding roller is arranged in a T shape with the three second traction rollers, and is linked to the output end of the second servo motor, and welds the four layers of fabric after being assembled by the second adjustable tension material feeding rack on the right;

[0009] The edge-sealing welding assembly is arranged directly below the left cover welding assembly and the right cover welding assembly, and comprises a third servo motor, an edge-sealing welding roller and three third pulling rollers; the three third pulling rollers are respectively arranged horizontally and parallelly in sequence, and are respectively connected to the vertical sides of the material rack for vertical rotation; an edge-sealing welding roller is also arranged horizontally and spaced directly below the middle third pulling roller, the edge-sealing welding roller and the three third pulling rollers are arranged in a T shape, and are linked to the output end of the third servo motor; after the two groups of four layers of fabrics welded by the left cover welding roller and the right cover welding roller are combined together, the edge-sealing welding roller is used to perform edge-sealing welding;

[0010] The mask cutting and forming assembly includes a fourth servo motor, a mask cutting knife roller, a mask cutting knife pillow, a roller adjustment device and three fourth traction rollers; the three fourth traction rollers are respectively and sequentially arranged horizontally and parallelly, and are respectively connected to the vertical edges of the material rack for vertical rotation; a mask cutting knife pillow is also horizontally spaced just below the middle fourth traction roller, and the mask cutting knife pillow is arranged in a T shape with the three fourth traction rollers, and is linked to the output end of the fourth servo motor; a mask cutting knife roller is also horizontally and parallelly arranged on one side of the mask cutting knife pillow, and a roller adjustment device is also provided on the other side thereof, and is adjusted by the roller adjustment device; the four layers of fabric after edge sealing and welding are cut and formed by the cooperation of the mask cutting knife roller and the mask cutting knife pillow;

[0011] The method of using the mask machine includes the following steps:

[0012] Step 1: First, unwind materials on each of the four adjacent surface cloth unwinding assemblies, ensuring that two of the surface cloth unwinding assemblies are non-woven fabrics, one surface cloth unwinding assembly is meltblown fabric, and the surface cloth unwinding assembly disposed on the outer side is elastic fabric;

[0013] Step 2: The position and tension of the mask fabric are corrected and adjusted through the tension control and deviation correction devices, and then the mask fabric on each face fabric unwinding assembly is fed through its corresponding first adjustable tension feeding rack, and combined together on the corresponding second adjustable tension feeding rack to form two groups of four layers of fabric on the left and right;

[0014] Step 3: A group of four layers of fabric on the left enters the left cover welding assembly, and is U-shaped and sequentially transferred between the left first traction roller and the middle first traction roller, the left cover welding roller, the middle first traction roller and the right first traction roller; after ultrasonic welding on the left cover welding roller, a group of four layers of fabric is formed, and is led out from the right first traction roller into the edge sealing welding assembly;

[0015] Step 4: At the same time, a group of four layers of fabric on the right enters the right cover welding assembly, and is U-shaped and sequentially transmitted between the right second traction roller and the middle second traction roller, the right cover welding roller, the middle second traction roller and the left second traction roller; after ultrasonic welding on the right cover welding roller, a group of four layers of fabric is formed, and is led out from the left second traction roller into the edge sealing welding assembly;

[0016] Step 5: The left and right groups of four-layer fabrics are combined and enter the edge-sealing welding assembly, and are U-shaped and sequentially transferred between the left third traction roller and the middle third traction roller, the edge-sealing welding roller, the middle third traction roller and the right third traction roller; after ultrasonic edge-sealing welding on the edge-sealing welding roller, four layers of fabric connected together are formed, and are led out from the right third traction roller into the mask cutting and forming assembly;

[0017] Step 6: The four layers of fabric connected together enter the mask cutting and forming assembly, and are U-shaped and transmitted in turn between the fourth traction roller on the left and the fourth traction roller in the middle, the mask cutting knife pillow, the fourth traction roller in the middle and the fourth traction roller on the right; the mask is cut into shape through the cooperation of the mask cutting knife roller and the mask cutting knife pillow, and is led out by the fourth traction roller on the right into the conveyor belt, and then transported by the conveyor belt.

[0018] Preferably, each of the first adjustable tension material feeding racks includes a first fixed plate, a first mounting plate and a first cloth guide roller; each of the first fixed plates is vertically spaced apart on one side of the corresponding feeding wheel, and is fixedly connected to the vertical side of the material rack respectively; a first mounting plate is also vertically fitted and rotatably provided on the outer surface of each of the first fixed plates, and each of the first mounting plates is a circular structure, and four first cloth guide rollers are evenly spaced apart on its outer surface along its circumferential direction, and each of the first cloth guide rollers is horizontally and vertically fixedly connected to the corresponding first mounting plate, and the fabrics on each of the feeding wheels are tension-adjusted in turn by the corresponding four first cloth guide rollers, and then fed to the corresponding second adjustable tension material feeding rack.

[0019] Preferably, each of the second adjustable tension material racks includes a second fixed plate, a second mounting plate and a second cloth guide roller; each of the second fixed plates is vertically spaced apart on one side close to the corresponding four surface cloth unwinding assemblies, and is fixedly connected to the vertical sides of the material rack respectively; a second mounting plate is also vertically fitted and rotatably provided on the outer surface of each of the second fixed plates, and each of the second mounting plates is a circular structure, and four second cloth guide rollers are evenly spaced apart on its outer surface along its circumferential direction, and each of the second cloth guide rollers is horizontally and vertically fixedly connected to the corresponding second mounting plate, and the fabrics on every four adjacent surface cloth unwinding assemblies are respectively combined together on the corresponding second cloth guide rollers, and the tension is adjusted in turn through the remaining three corresponding second cloth guide rollers.

[0020] Preferably, it also includes a conveyor belt tensioning device; one end of the conveyor belt is arranged directly below the fourth traction roller on the right, receives the cut and formed masks, and conveys them; the other end of the conveyor belt is connected to the conveyor belt tensioning device, and is tensioned and adjusted by the conveyor belt tensioning device.

[0021] Beneficial effects of the present invention:

[0022] (1) The overall structure of the present invention is compact and reduces the space occupied;

[0023] (2) The overall structure of the present invention adopts a T-shaped structural design and a U-shaped transmission design. By using one group of large Ts and four groups of small Ts, the traction force is symmetrical, highly consistent, and it is not easy to form a phase difference;

[0024] (3) The present invention welds the left and right covers symmetrically, thereby reducing the phase difference when the left and right covers are combined and sealed, and reducing the difficulty of debugging;

[0025] (4) The present invention can directly form the mask in one step when cutting and molding, and no longer requires a separate ear strap welding process, thereby reducing costs; in addition, the ear strap part is made of elastic cloth, which is comfortable and does not feel tight;

[0026] (5) The present invention adopts a U-shaped transmission design, which mechanically prolongs the pressure holding time during welding, thereby improving production efficiency;

[0027] (6) The present invention can adjust the welding roller and the knife pillow according to the size of the mask, thereby making the product diversified and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 The present invention is a structural schematic diagram of a mask machine for producing earless hanging rope masks.

[0030] Figure 2 for Figure 1 Schematic diagram of the structure after removing the entire board.

[0031] Figure 3 for Figure 2 Front view of .

[0032] Figure 4 The present invention discloses a cloth transmission circuit diagram of a mask machine for producing masks without ear hanging ropes.

[0033] Figure 5 for Figure 3 Schematic diagram of the structure of the tension control and correction device.

[0034] Figure 6 for Figure 3 Schematic diagram of the connection between the conveyor belt tensioning device and the conveyor belt.

[0035] Among them, 1-material rack; 2-workbench; 3-face cloth unwinding assembly; 4-first adjustable tension material rack; 5-left mask welding assembly; 6-right mask welding assembly; 7-edge welding assembly; 8-mask cutting and forming assembly; 9-conveyor belt tensioning device; 10-conveyor belt; 11-second adjustable tension material rack; 12-whole board; 31-feeding wheel; 32-tension control and deviation correction device; 321-deviation correction brake unwinding rack; 322-electromagnetic tension controller; 323-deviation correction motor; 41-first fixed plate; 42-first Mounting plate; 43-first cloth guide roller; 51-first servo motor; 52-first traction roller; 53-left mask body welding roller; 61-second servo motor; 62-second traction roller; 63-right mask body welding roller; 71-third servo motor; 72-third traction roller; 73-edge welding roller; 81-fourth servo motor; 82-fourth traction roller; 83-mask cutting knife roller; 84-mask cutting knife pillow; 85-roller adjustment device; 111-second fixed plate; 112-second mounting plate; 113-second cloth guide roller. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below through specific implementation methods.

[0037] The present invention discloses a mask machine for producing a mask without ear hanging ropes, comprising a material rack 1, a workbench 2, a face cloth unwinding assembly 3, a first adjustable tension material rack 4, an adjustable tension device 11, a left mask body welding assembly 5, a right mask body welding assembly 6, an edge sealing welding assembly 7, a mask cutting and forming assembly 8 and a conveyor belt 10; the specific structure is as follows Figures 1 to 6 As shown, the material rack 1 is an inverted T-shaped frame structure arranged vertically and horizontally, and a workbench 2 is also arranged horizontally and horizontally at the lower middle position of the front side thereof; four surface cloth unwinding assemblies 3 are also arranged vertically and symmetrically on the left and right sides directly above the workbench 2, and each surface cloth unwinding assembly 3 is rotatably connected to the vertical side of the material rack 1; wherein, each surface cloth unwinding assembly 3 provided with elastic cloth is arranged on the outer side relative to the other three corresponding surface cloth unwinding assemblies 3, so as to facilitate cutting ear straps on the elastic cloth, and no additional welding process of the ear straps is required, thereby reducing costs; in addition, the ear strap part uses elastic cloth, which is comfortable and does not feel tight.

[0038] Each fabric unwinding assembly 3 includes a feeding wheel 31 and a tension control and deviation correction device 32. Figures 1 to 6As shown, each feeding wheel 31 is vertically arranged, and a tension control and correction device 32 is also sleeved at its center position, and the position correction and tension adjustment of the mask fabric are performed through the tension control and correction device 32; wherein, each tension control and correction device 32 includes a correction brake unloading rack 321, an electromagnetic tension controller 322 and a correction motor 323, one end of each correction brake unloading rack 321 is sleeved with the center position of the corresponding feeding wheel 31, and the two are respectively rotatably connected, and the other end of each correction brake unloading rack 321 respectively extends vertically to the vertical side of the unloading rack 1, and is respectively linked to the output end of the corresponding correction motor 323 through the electromagnetic tension controller 322.

[0039] In the present invention, a first tension-adjustable material feeding frame 4 is vertically fixed on one side of each fabric unwinding assembly 3, and each first tension-adjustable material feeding frame 4 includes a first fixing plate 41, a first mounting plate 42 and a first fabric guide roller 43; Figures 1 to 6 As shown, each first fixed plate 41 is vertically spaced apart on one side of the corresponding feeding wheel 31, and is fixedly connected to the vertical side of the material rack 1; a first mounting plate 42 is also vertically fitted and rotatably provided on the outer surface of each first fixed plate 41, and each first mounting plate 42 is a circular structure, and four first cloth guide rollers 43 are evenly spaced apart on its outer surface along its circumferential direction, and each first cloth guide roller 43 is horizontally and vertically fixedly connected to the corresponding first mounting plate 42, and the fabric on each feeding wheel 31 is tension-adjusted by the corresponding four first cloth guide rollers 43 in turn, and then fed to the corresponding second tension-adjustable material rack 11. In the present invention, the first mounting plate 42 can adjust the position angle of the four first cloth guide rollers 43 according to the size of the cloth roll, the elasticity of the cloth, etc., so as to adjust the tension of the cloth.

[0040] The present invention further provides a second adjustable tension feeding rack 11 symmetrically and vertically above the workbench 2, each second adjustable tension feeding rack 11 is respectively fixedly connected to the top of the vertical side of the rack 1, and the mask fabric on each face cloth unwinding assembly 3 is respectively fed through the corresponding first adjustable tension feeding rack 4, and respectively combined together on the corresponding second adjustable tension feeding rack 11; wherein each second adjustable tension feeding rack 11 includes a second fixed plate 111, a second mounting plate 112 and a second cloth guide roller 113; as Figures 1 to 6As shown, each second fixed plate 111 is vertically spaced and arranged at a distance from each other on one side of the corresponding four surface cloth unwinding assemblies 3, and is fixedly connected to the vertical side of the material rack 1 respectively; a second mounting plate 112 is also vertically fitted and rotatably arranged on the outer surface of each second fixed plate 111, and each second mounting plate 112 is a circular structure, and four second cloth guide rollers 113 are evenly spaced and arranged on its outer surface along its circumferential direction, and each second cloth guide roller 113 is horizontally and vertically fixedly connected to the corresponding second mounting plate 112, and the fabrics on each four adjacent surface cloth unwinding assemblies 3 are respectively combined on the corresponding second cloth guide rollers 113, and the tension is adjusted in turn through the remaining three corresponding second cloth guide rollers 113. Among them, the second mounting plate 112 can be rotated at a desired angle to adjust the position angle of the four second cloth guide rollers 113, thereby adjusting the tension of the fabric.

[0041] In the present invention, a left cover welding assembly 5, a right cover welding assembly 6 and an edge sealing welding assembly 7 are respectively and vertically fixed in a T-shape directly above the workbench 2, and the left cover welding assembly 5 and the right cover welding assembly 6 are symmetrically arranged. The two groups of four-layer fabrics after being combined are respectively welded by the corresponding left cover welding assembly 5 and the right cover welding assembly 6, and then spliced ​​together and edge-sealed by the edge sealing welding assembly 7; Figures 1 to 6 As shown, the left cover body welding assembly 5 is arranged directly below the second adjustable tension feeding rack 11 on the left, and includes a first servo motor 51, a left cover body welding roller 53 and three first traction rollers 52; the three first traction rollers 52 are respectively and sequentially arranged in parallel and horizontally, and are respectively connected to the vertical sides of the material rack 1 for vertical rotation; a left cover body welding roller 53 is also horizontally spaced directly below the middle first traction roller 52, and the left cover body welding roller 53 is arranged in a T shape with the three first traction rollers 52, and is linked to the output end of the first servo motor 51, and welds the four layers of fabric after being combined by the second adjustable tension feeding rack 11 on the left; wherein, a roller adjustment device is also provided on one side of the left cover body welding roller 53, which is used to adjust the distance between the left cover body welding roller 53 and the welding head, thereby improving the welding quality.

[0042] like Figures 1 to 6As shown, the right cover body welding assembly 6 is arranged directly below a second adjustable tension feeding rack 11 on the right, and includes a second servo motor 61, a right cover body welding roller 63 and three second traction rollers 62; the three second traction rollers 62 are respectively and successively arranged in horizontal parallel and fit, and are respectively connected to the vertical sides of the material rack 1 for vertical rotation; a right cover body welding roller 63 is also horizontally spaced directly below the middle second traction roller 62, and the right cover body welding roller 63 is arranged in a T shape with the three second traction rollers 62, and is linked to the output end of the second servo motor 61, and welds the four layers of fabric after being combined by the second adjustable tension feeding rack 11 on the right; wherein, a roller adjustment device is also provided on one side of the right cover body welding roller 63, which is used to adjust the distance between the right cover body welding roller 63 and the welding head, thereby improving the welding quality.

[0043] like Figures 1 to 6 As shown, the edge banding welding assembly 7 is arranged directly below the left cover body welding assembly 5 and the right cover body welding assembly 6, and includes a third servo motor 71, an edge banding welding roller 73 and three third pulling rollers 72; the three third pulling rollers 72 are respectively and sequentially arranged in parallel and horizontally, and are respectively connected to the vertical sides of the material rack 1 for vertical rotation; an edge banding welding roller 73 is also horizontally spaced directly below the middle third pulling roller 72, and the edge banding welding roller 73 and the three third pulling rollers 72 are arranged in a T shape, and are linked to the output end of the third servo motor 71; after the two groups of four layers of fabrics welded by the left cover body welding roller 53 and the right cover body welding roller 63 are combined together, the edge banding welding roller 73 is used for edge banding welding; wherein, a roller adjustment device is also provided on one side of the edge banding welding roller 73 for adjusting the distance between the edge banding welding roller 73 and the welding head, thereby improving the welding quality.

[0044] The present invention further provides a mask cutting and forming assembly 8 at a vertical interval on one side of the edge sealing and welding assembly 7, and the mask cutting and forming assembly 8 includes a fourth servo motor 81, a mask cutting knife roller 83, a mask cutting knife pillow 84, a roller adjustment device 85 and three fourth traction rollers 82; Figures 1 to 6 As shown, the three fourth traction rollers 82 are respectively and sequentially arranged in parallel and horizontally, and are respectively connected to the vertical edges of the material rack 1 for vertical rotation; a mask cutting knife pillow 84 is also arranged horizontally and spaced directly below the middle fourth traction roller 82, and the mask cutting knife pillow 84 is arranged in a T shape with the three fourth traction rollers 82, and is linked to the output end of the fourth servo motor 81; a mask cutting knife roller 83 is also arranged horizontally and parallelly on one side of the mask cutting knife pillow 84, and a roller adjustment device 85 is also provided on the other side thereof, and is adjusted by the roller adjustment device 85; in the present invention, the four layers of fabric after edge sealing and welding are cut and formed by the cooperation of the mask cutting knife roller 83 and the mask cutting knife pillow 84.

[0045] The present invention further provides a conveyor belt 10 horizontally on one side of the mask cutting and forming assembly 8; Figures 1 to 6 As shown, one end of the conveyor belt 10 is arranged directly below the fourth traction roller 82 on the right, receives the cut and formed masks, and conveys them; the other end of the conveyor belt 10 is connected to the conveyor belt tensioning device 9, and is tensioned and adjusted by the conveyor belt tensioning device 9.

[0046] like Figure 1 As shown, a whole plate 12 is also vertically provided on the workbench 2 for protecting the left cover body welding assembly 5, the right cover body welding assembly 6, the edge sealing welding assembly 7 and the mask cutting and forming assembly 8.

[0047] A method for using a mask machine for producing a mask without ear hanging ropes of the present invention comprises the following steps:

[0048] Step 1: First, unwind materials on each of the four adjacent surface cloth unwinding components 3, ensuring that two of the surface cloth unwinding components 3 are non-woven fabrics, one surface cloth unwinding component 3 is melt-blown fabric, and the surface cloth unwinding component 3 disposed on the outer side is elastic fabric;

[0049] Step 2: The position of the mask fabric is corrected and the tension is adjusted through the tension control and deviation correction device 32, and then the mask fabric on each face cloth unwinding assembly 3 is fed through its corresponding first adjustable tension feeding rack 4, and is respectively combined on the corresponding second adjustable tension feeding rack 11 to form two groups of four layers of fabric on the left and right;

[0050] Step 3: A group of four layers of fabric on the left enters the left cover welding assembly 5, and is U-shaped and sequentially transferred between the left first traction roller 52 and the middle first traction roller 52, the left cover welding roller 53, the middle first traction roller 52 and the right first traction roller 52; ultrasonic welding is performed on the left cover welding roller 53 to form a group of four layers of fabric, and is led out from the right first traction roller 52 to enter the edge sealing welding assembly 7;

[0051] In the above steps, the U-shaped transmission welding method is adopted, and the four layers of fabric remain in contact with the left cover welding roller 53 for a period of time after ultrasonic welding, which structurally makes up for the defect that the ultrasonic welding part has a too short holding time during high-speed operation, affecting the welding effect. For example, when the production capacity is 1200 pieces / min, the welding roller is 2 pieces / turn, and the welding roller speed is required to be 600 turns / min, that is, 100ms / turn. The four layers of fabric can maintain at least 1 / 2 turn after welding until they leave the welding roller. Therefore, the U-shaped transmission welding method can ensure that the holding time is about 50ms when the production capacity is 1200 pieces / min.

[0052] Step 4: At the same time, a group of four layers of fabric on the right enters the right cover welding assembly 6, and is U-shaped and sequentially transferred between the right second traction roller 62 and the middle second traction roller 62, the right cover welding roller 63, the middle second traction roller 62 and the left second traction roller 62; after ultrasonic welding on the right cover welding roller 63, a group of four layers of fabric is formed, and is led out from the left second traction roller 62 into the edge sealing welding assembly 7;

[0053] In the above steps, a U-shaped transmission welding method is adopted, and the four layers of fabric remain in contact with the right cover body welding roller 63 for a period of time after ultrasonic welding, which structurally compensates for the defect that the pressure holding time of the ultrasonic welding part is too short during high-speed operation, affecting the welding effect.

[0054] Step 5: The left and right groups of four-layer fabrics are combined and enter the edge welding assembly 7, and are U-shaped and sequentially transferred between the left third traction roller 72 and the middle third traction roller 72, the edge welding roller 73, the middle third traction roller 72 and the right third traction roller 72; ultrasonic edge welding is performed on the edge welding roller 73 to form a four-layer fabric connected together, and is led out from the right third traction roller 72 to enter the mask cutting and forming assembly;

[0055] In the above steps, the symmetrical design of welding the left and right groups of four layers of fabric reduces the phase difference when the cover is combined with the edge sealing, thereby reducing the difficulty of debugging.

[0056] Step six: The four layers of fabric connected together enter the mask cutting and forming assembly 8, and are U-shaped and sequentially transmitted between the left fourth traction roller 82 and the middle fourth traction roller 82, the mask cutting knife pillow 84, the middle fourth traction roller 82 and the right fourth traction roller 82 for fabric transmission; the mask is cut into shape by the cooperation of the mask cutting knife roller 83 and the mask cutting knife pillow 84, and is led out by the right fourth traction roller 82 into the conveyor belt 10, and then transported by the conveyor belt 10.

[0057] In the above steps, the mask is directly formed in one step, and the welding process of the ear straps is no longer required, which reduces the cost. In addition, the ear straps are made of elastic cloth, which is comfortable and will not feel tight.

[0058] Beneficial effects of the present invention:

[0059] (1) The overall structure of the present invention is compact and reduces the space occupied;

[0060] (2) The overall structure of the present invention adopts a T-shaped structural design and a U-shaped transmission design. By using one group of large Ts and four groups of small Ts, the traction force is symmetrical, highly consistent, and it is not easy to form a phase difference;

[0061] (3) The present invention welds the left and right covers symmetrically, thereby reducing the phase difference when the left and right covers are combined and sealed, and reducing the difficulty of debugging;

[0062] (4) The present invention can directly form the mask in one step when cutting and molding, and no longer requires a separate ear strap welding process, thereby reducing costs; in addition, the ear strap part is made of elastic cloth, which is comfortable and does not feel tight;

[0063] (5) The present invention adopts a U-shaped transmission design, which mechanically prolongs the pressure holding time during welding, thereby improving production efficiency;

[0064] (6) The present invention can adjust the welding roller and the knife pillow according to the size of the mask, thereby making the product diversified and having a wide range of applications.

[0065] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A method for using a mask machine for producing earless hanging rope masks, characterized in that: The mask machine includes a material rack, a workbench, a face cloth unwinding assembly, a first tension-adjustable material rack, an adjustable tension device, a left mask body welding assembly, a right mask body welding assembly, an edge-sealing welding assembly, a mask cutting and forming assembly and a conveyor belt; the material rack is an inverted T-shaped frame structure arranged vertically and horizontally, and a workbench is also arranged horizontally and horizontally at the lower middle position of the front side; four face cloth unwinding assemblies are vertically and symmetrically arranged on the left and right sides directly above the workbench, and each of the face cloth unwinding assemblies is rotatably connected to the vertical side of the material rack; a first tension-adjustable material rack is vertically fixed on one side of each of the face cloth unwinding assemblies, and a second tension-adjustable material rack is vertically and symmetrically arranged on the left and right sides directly above the workbench, and each of the second tension-adjustable material racks is fixedly connected to the top of the vertical side of the material rack, and each The mask fabrics on the face cloth unwinding assembly are fed through the corresponding first adjustable tension feeding rack, and are respectively combined together on the corresponding second adjustable tension feeding rack; a left cover body welding assembly, a right cover body welding assembly and an edge sealing welding assembly are respectively vertically fixed in a T-shape directly above the workbench, the left cover body welding assembly and the right cover body welding assembly are symmetrically arranged, and a mask cutting and forming assembly is vertically spaced on one side of the edge sealing welding assembly, and a conveyor belt is horizontally arranged on one side of the mask cutting and forming assembly; the two groups of four-layer fabrics after combination are respectively welded through the corresponding left cover body welding assembly and the right cover body welding assembly, and then spliced ​​together for edge sealing welding by the edge sealing welding assembly, and then cut and formed by the mask cutting and forming assembly, and transported by the conveyor belt; Each of the face cloth unwinding assemblies provided with elastic cloth is arranged on the outside relative to the other three corresponding face cloth unwinding assemblies, and each of the face cloth unwinding assemblies includes a feeding wheel and a tension control and correction device. Each of the feeding wheels is arranged vertically, and a tension control and correction device is also sleeved at its center position, and the position correction and tension adjustment of the mask fabric are performed through the tension control and correction device; each of the tension control and correction devices includes a correction brake unwinding rack, an electromagnetic tension controller and a correction motor, one end of each of the correction brake unwinding racks is sleeved with the center position of the corresponding feeding wheel, and the two are rotatably connected respectively, and the other end of each of the correction brake unwinding racks vertically extends out of the vertical edge of the rack, and is respectively linked to the output end of the corresponding correction motor through the electromagnetic tension controller; The left cover body welding assembly is arranged directly below the second adjustable tension material feeding rack on the left, and comprises a first servo motor, a left cover body welding roller and three first pulling rollers; the three first pulling rollers are respectively and sequentially arranged horizontally and parallelly in close contact, and are respectively and vertically rotatably connected to the vertical sides of the material feeding rack; a left cover body welding roller is also arranged horizontally and spaced directly below the middle first pulling roller, the left cover body welding roller is arranged in a T shape with the three first pulling rollers, and is linked to the output end of the first servo motor, and welds the four layers of fabric after being assembled by the second adjustable tension material feeding rack on the left; The right cover body welding assembly is arranged directly below the second adjustable tension material feeding rack on the right, and comprises a second servo motor, a right cover body welding roller and three second traction rollers; the three second traction rollers are respectively arranged horizontally and parallelly in sequence, and are respectively connected to the vertical sides of the material feeding rack for vertical rotation; a right cover body welding roller is also arranged horizontally and spaced directly below the middle second traction roller, the right cover body welding roller is arranged in a T shape with the three second traction rollers, and is linked to the output end of the second servo motor, and welds the four layers of fabric after being assembled by the second adjustable tension material feeding rack on the right; The edge-sealing welding assembly is arranged directly below the left cover welding assembly and the right cover welding assembly, and comprises a third servo motor, an edge-sealing welding roller and three third pulling rollers; the three third pulling rollers are respectively arranged horizontally and parallelly in sequence, and are respectively connected to the vertical sides of the material rack for vertical rotation; an edge-sealing welding roller is also arranged horizontally and spaced directly below the middle third pulling roller, the edge-sealing welding roller and the three third pulling rollers are arranged in a T shape, and are linked to the output end of the third servo motor; after the two groups of four layers of fabrics welded by the left cover welding roller and the right cover welding roller are combined together, the edge-sealing welding roller is used to perform edge-sealing welding; The mask cutting and forming assembly includes a fourth servo motor, a mask cutting knife roller, a mask cutting knife pillow, a roller adjustment device and three fourth traction rollers; the three fourth traction rollers are respectively and sequentially arranged horizontally and parallelly, and are respectively connected to the vertical edges of the material rack for vertical rotation; a mask cutting knife pillow is also horizontally spaced just below the middle fourth traction roller, and the mask cutting knife pillow is arranged in a T shape with the three fourth traction rollers, and is linked to the output end of the fourth servo motor; a mask cutting knife roller is also horizontally and parallelly arranged on one side of the mask cutting knife pillow, and a roller adjustment device is also provided on the other side thereof, and is adjusted by the roller adjustment device; the four layers of fabric after edge sealing and welding are cut and formed by the cooperation of the mask cutting knife roller and the mask cutting knife pillow; The method of using the mask machine includes the following steps: Step 1: First, unwind materials on each of the four adjacent surface cloth unwinding assemblies respectively, ensuring that two of the surface cloth unwinding assemblies are non-woven fabrics, one surface cloth unwinding assembly is meltblown fabric, and the surface cloth unwinding assembly disposed on the outer side is elastic fabric; Step 2: The position and tension of the mask fabric are corrected and adjusted through the tension control and deviation correction devices, and then the mask fabric on each face fabric unwinding assembly is fed through its corresponding first adjustable tension feeding rack, and combined together on the corresponding second adjustable tension feeding rack to form two groups of four layers of fabric on the left and right; Step 3: A group of four layers of fabric on the left enters the left cover welding assembly, and is U-shaped and sequentially transferred between the left first traction roller and the middle first traction roller, the left cover welding roller, the middle first traction roller and the right first traction roller; after ultrasonic welding on the left cover welding roller, a group of four layers of fabric is formed, and is led out from the right first traction roller into the edge sealing welding assembly; Step 4: At the same time, a group of four layers of fabric on the right enters the right cover welding assembly, and is U-shaped and sequentially transmitted between the right second traction roller and the middle second traction roller, the right cover welding roller, the middle second traction roller and the left second traction roller; after ultrasonic welding on the right cover welding roller, a group of four layers of fabric is formed, and is led out from the left second traction roller into the edge sealing welding assembly; Step 5: The left and right groups of four-layer fabrics are combined and enter the edge-sealing welding assembly, and are U-shaped and sequentially transferred between the left third traction roller and the middle third traction roller, the edge-sealing welding roller, the middle third traction roller and the right third traction roller; after ultrasonic edge-sealing welding on the edge-sealing welding roller, four layers of fabric connected together are formed, and are led out from the right third traction roller into the mask cutting and forming assembly; Step 6: The four layers of fabric connected together enter the mask cutting and forming assembly, and are U-shaped and transmitted in turn between the fourth traction roller on the left and the fourth traction roller in the middle, the mask cutting knife pillow, the fourth traction roller in the middle and the fourth traction roller on the right; the mask is cut into shape through the cooperation of the mask cutting knife roller and the mask cutting knife pillow, and is led out by the fourth traction roller on the right into the conveyor belt, and then transported by the conveyor belt.

2. The method for using a mask machine for producing earless hanging rope masks according to claim 1, characterized in that: Each of the first adjustable tension material feeding racks includes a first fixed plate, a first mounting plate and a first cloth guide roller; each of the first fixed plates is vertically spaced apart on one side of the corresponding feeding wheel, and is fixedly connected to the vertical side of the material rack respectively; a first mounting plate is also vertically fitted and rotatably provided on the outer surface of each of the first fixed plates, and each of the first mounting plates is a circular structure, and four first cloth guide rollers are evenly spaced apart on its outer surface along its circumferential direction, and each of the first cloth guide rollers is horizontally and vertically fixedly connected to the corresponding first mounting plate, and the fabrics on each of the feeding wheels are sequentially tensioned by the corresponding four first cloth guide rollers before being fed to the corresponding second adjustable tension material feeding rack.

3. The method for using a mask machine for producing earless hanging rope masks according to claim 1, characterized in that: Each of the second adjustable tension material passing racks includes a second fixed plate, a second mounting plate and a second cloth guide roller; each of the second fixed plates is vertically spaced apart on one side close to the corresponding four surface cloth unwinding assemblies, and is fixedly connected to the vertical sides of the material rack respectively; a second mounting plate is also vertically fitted and rotatably provided on the outer surface of each of the second fixed plates, and each of the second mounting plates is a circular structure, and four second cloth guide rollers are evenly spaced apart on its outer surface along its circumferential direction, and each of the second cloth guide rollers is horizontally and vertically fixedly connected to the corresponding second mounting plate, and the fabrics on every four adjacent surface cloth unwinding assemblies are respectively combined together on the corresponding second cloth guide rollers, and the tension is adjusted in turn through the remaining three corresponding second cloth guide rollers.

4. The method for using a mask machine for producing earless hanging rope masks according to claim 1, characterized in that: It also includes a conveyor belt tensioning device; one end of the conveyor belt is arranged directly below the fourth traction roller on the right, receives the cut and formed masks, and conveys them; the other end of the conveyor belt is connected to the conveyor belt tensioning device, and is tensioned and adjusted through the conveyor belt tensioning device.

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