Mask machine

Abstract

The present invention discloses a mask machine, including an unwinding mechanism, a nose wire delivery mechanism, an ear wire delivery mechanism, a control system, a machine base, and a folding mechanism, a nose wire welding mechanism, a side wire welding mechanism, an ear wire welding mechanism, a traction slitting mechanism and a conveying mechanism sequentially installed on the machine base from right to left, wherein the unwinding mechanism is arranged on the right side of the folding mechanism, the nose wire delivery mechanism is arranged on one side of the machine base, and its output end is arranged at the front end of the nose wire welding mechanism, the ear wire delivery mechanism is arranged on one side of the machine base, and its output end is arranged at the front end of the ear wire welding mechanism, and the unwinding mechanism, the nose wire delivery mechanism, the ear wire delivery mechanism, the nose wire welding mechanism, the side wire welding mechanism, the ear wire welding mechanism, the traction slitting mechanism and the conveying mechanism are all electrically connected to the control system. The mask machine of the present invention is controlled by a control system to synchronously control multiple mechanisms to operate together, with precise control, effectively avoiding the phenomenon of stuck shutdown, and having high automation production efficiency.

Description

Technical Field

[0001] The invention relates to a mask machine and belongs to the technical field of mask production equipment. Background Art

[0002] Most of the existing mask machines are composed of multiple mechanisms such as a sheeting machine and two wire welding machines, which can effectively produce masks. However, their disadvantages are: the control motor and cylinder and other actuators have multiple mechanisms, the movements are complicated, and the movements are easy to be inaccurate, the mask pieces are not produced in place, and they often get stuck and stop, which seriously affects the production efficiency. Summary of the invention

[0003] In order to overcome the deficiencies in the prior art, the present invention provides a mask machine.

[0004] The present invention can be implemented by adopting the following technical solutions:

[0005] A mask machine comprises an unwinding mechanism, a nose wire feeding mechanism, an ear wire feeding mechanism, a control system, a machine base, and a folding mechanism, a nose wire welding mechanism, a side wire welding mechanism, an ear wire welding mechanism, a traction and slitting mechanism and a conveying mechanism coaxially mounted on the machine base from right to left in sequence, wherein the unwinding mechanism is arranged on the right side of the folding mechanism, the nose wire feeding mechanism is arranged on one side of the machine base, and an output end thereof is arranged at a front end of the nose wire welding mechanism, the ear wire feeding mechanism is arranged on one side of the machine base, and an output end thereof is arranged at a front end of the ear wire welding mechanism, and the unwinding mechanism, the nose wire feeding mechanism, the ear wire feeding mechanism, the nose wire welding mechanism, the side wire welding mechanism, the ear wire welding mechanism, the traction and slitting mechanism and the conveying mechanism are all electrically connected to the control system.

[0006] Preferably, the ear line welding mechanism includes a first welding tooth mold, a first ultrasonic welding table, a first upper drawing roller, a first lower drawing roller, a first servo motor, and a second servo motor. The first welding tooth mold is rotatably arranged on the machine base and is located between the welding edge line mechanism and the traction and slitting mechanism. Two welding blocks are provided on the first welding tooth mold along its axial direction. The first ultrasonic welding table is arranged on the machine base through a moving mechanism and is located below the first welding tooth mold. The first servo motor is fixed on the machine base and is connected to the first welding tooth mold in transmission. The first upper drawing roller and the first lower drawing roller are rotatably arranged on the machine base and are located parallel to the first welding tooth mold and the traction and slitting mechanism. The second servo motor is arranged on the machine base and is connected to the first lower drawing roller in transmission. The first upper drawing roller is pressed on the first lower drawing roller and is connected to the first lower drawing roller in transmission through a first meshing gear set arranged on the machine base. The first servo motor, the second servo motor, the moving mechanism, and the first ultrasonic welding table are all electrically connected to the control system.

[0007] Preferably, the traction and slitting mechanism includes an upper cutting roller, a lower cutting roller, a second upper drawing roller, a second lower drawing roller, a third servo motor and a fourth servo motor, the upper cutting roller and the lower cutting roller are both rotatably arranged on the machine base and located between the welding ear line mechanism and the conveying mechanism, the upper cutting roller is provided with a cutting knife along its axial direction, the third servo motor is arranged on the machine base and is transmission connected to the lower cutting roller, the upper cutting roller is pressed on the lower cutting roller and is transmission connected to the lower cutting roller through a second meshing gear set arranged on the machine base, the second upper drawing roller and the second lower drawing roller are rotatably arranged on the machine base and located between the upper cutting roller and the conveying mechanism, the fourth servo motor is arranged on the machine base and is transmission connected to the second lower drawing roller, the second upper drawing roller is pressed on the second lower drawing roller and is transmission connected to the second lower drawing roller through the third meshing gear set arranged on the machine base, and the third servo motor and the fourth servo motor are both electrically connected to the control system.

[0008] Preferably, the ear wire delivery mechanism includes a first bracket, an upper plate, a wire storage device, a control electrical box, a coil, a wire board, a wire cutting assembly and a nozzle, the upper plate is fixed on the machine base, the coil is rotatably mounted on the first bracket, the wire storage device is mounted on the first bracket, the control electrical box is fixed on the first bracket and electrically connected to the wire storage device, the wire board, the wire cutting assembly and the nozzle are fixed on the upper plate in sequence, and the nozzle is connected to the external air system.

[0009] Preferably, the welding edge line mechanism includes a second welding tooth mold, a second ultrasonic welding table, a third upper drawing roller, a third lower drawing roller, a fifth servo motor and a sixth servo motor. The second welding tooth mold is rotatably arranged on the machine base and is located between the welding nose line mechanism and the welding ear line mechanism. Two welding strips are arranged parallel to the axial direction of the second welding tooth mold. The second ultrasonic welding table is installed on the machine base and is against the bottom of the second welding tooth mold. The fifth servo motor is transmission-connected to the second welding tooth mold. The third upper drawing roller and the third lower drawing roller are rotationally arranged on the machine base and are located between the second welding tooth mold and the welding ear line mechanism. The sixth servo motor is arranged on the machine base and transmission-connected to the third lower drawing roller. The third upper drawing roller is pressed on the third lower drawing roller and is transmission-connected to the third lower drawing roller through a fourth meshing gear set arranged on the machine base. The second ultrasonic welding table, the fifth servo motor and the sixth servo motor are all electrically connected to the control system.

[0010] Preferably, the welding nose line mechanism includes a third welding tooth mold, a third ultrasonic welding table, a fourth upper drawing roller, a fourth lower drawing roller, a nose line guide seat, a guide wheel, a sixth servo motor, a seventh servo motor, and an eighth servo motor. The third welding tooth mold is rotatably mounted on the machine base and is located between the welding edge line mechanism and the folding mechanism. A welding ring is provided on the third welding tooth mold along its radial direction. The third ultrasonic welding table is mounted on the machine base and is against the bottom of the third welding tooth mold. The sixth servo motor is arranged on the machine base and is transmission-connected to the third welding tooth mold. The fourth upper drawing roller and the fourth lower drawing roller are rotatably mounted on the machine base and are located between the third welding tooth mold and the welding edge line mechanism. The seventh servo motor is arranged on the machine base and is connected to the fourth lower The drawing roller is connected by transmission, the fourth upper drawing roller is pressed on the fourth lower drawing roller and is connected by transmission with the fourth lower drawing roller through a fifth meshing gear set arranged on the machine base, the nose wire guide seat is installed between the third welding tooth mold and the folding mechanism, and a transverse through hole is opened inside it, the front end of the transverse through hole is located at the inlet end of the third welding tooth mold, and the rear end thereof is connected with the nose wire feeding mechanism, the upper surface of the nose wire guide seat is provided with a groove connected with the transverse through hole, the guide wheel is rotatably installed on the machine base, and its bottom is placed in the groove, the eighth servo motor is arranged on the machine base and is connected by transmission with the guide wheel, the third ultrasonic welding station, the sixth servo motor, the seventh servo motor, and the eighth servo motor are all electrically connected to the control system.

[0011] Preferably, the number of the grooves is two, and the two grooves are sequentially located on the nose line guide seat; the number of the guide wheels is two, and the bottoms of the two guide wheels are correspondingly located in the grooves; the two guide wheels are transmission connected via a sixth meshing gear set arranged on the machine base.

[0012] Preferably, the welding nose wire mechanism also includes a guide plate, which is obliquely fixed on the machine base, with its upper end located above the front end of the transverse through hole and its lower end located at the inlet of the third welding tooth mold, and a nose wire guide groove is formed between the guide plate and the top surface of the machine base.

[0013] Preferably, the folding mechanism includes a first rotating shaft and a second rotating shaft which are arranged on the machine base for parallel rotation, and the first rotating shaft and the second rotating shaft are respectively fixedly sleeved with a plurality of truncated cone-shaped rollers along their axial directions, and the rollers on the first rotating shaft are arranged in the opposite direction of the rollers on the second rotating shaft and their sides are in contact with each other.

[0014] Preferably, the unwinding mechanism comprises a second bracket and three unwinding rollers, the second bracket is located on the right side of the folding mechanism, and the three unwinding rollers are mounted on the second bracket.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the mask machine of the present invention coaxially arranges the folding mechanism, the nose line welding mechanism, the edge line welding mechanism, the ear line welding mechanism, the traction and slitting mechanism and the conveying mechanism on the machine base in sequence. Since multiple mechanisms are coaxially located on the machine base, multi-mechanism and multi-axis synchronous speed and precise control can be achieved, effectively avoiding jamming and shutdown phenomena, and the automated production efficiency is high; at the same time, multiple mechanisms are coaxially controlled by servo motors, which can effectively and accurately control the fixed length and improve the production yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the mask machine of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the folding mechanism, the welding nose wire mechanism and the welding edge wire mechanism of the present invention;

[0018] Figure 3 It is another structural schematic diagram of the folding mechanism, the welding nose wire mechanism and the welding edge wire mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the nose wire guide seat and the guide wheel of the present invention;

[0020] Figure 5 It is another structural schematic diagram of the nose wire guide seat and the guide wheel of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the ear wire welding mechanism and the pulling and cutting mechanism of the present invention;

[0022] Figure 7 It is another structural schematic diagram of the ear wire welding mechanism and the pulling and cutting mechanism of the present invention;

[0023] Figure 8 It is a structural schematic diagram of the unwinding mechanism of the present invention;

[0024] Fig. 9 It is a structural schematic diagram of the ear wire jetting delivery mechanism of the present invention;

[0025] Fig.10 It is a structural schematic diagram of the wire guide plate, the wire cutting assembly and the nozzle of the present invention;

[0026] Fig.11 It is a structural schematic diagram of the conductor plate and the wire tensioner of the present invention;

[0027] Among them, 1-folding mechanism, 2-nose wire welding mechanism, 3-edge wire welding mechanism, 4-ear wire welding mechanism, 5-traction and slitting mechanism, 6-conveying mechanism, 7-machine base, 8-unwinding mechanism, 9-ear wire feeding mechanism, 11-first rotating shaft, 12-second rotating shaft, 13-roller, 21-third welding tooth mold, 22-third ultrasonic welding table, 23-fourth upper drawing roller, 24-fourth lower drawing roller, 25-nose wire guide seat, 26-guide wheel, 27-sixth servo motor, 28-seventh servo Motor, 29-eighth servo motor, 210-welding ring, 211-fifth meshing gear set, 212-transverse through hole, 213-groove, 214-sixth meshing gear set, 215-guide plate, 216-nose line guide groove, 31-second welding tooth mold, 32-second ultrasonic welding station, 33-third upper pull roller, 34-third lower pull roller, 35-fifth servo motor, 36-sixth servo motor, 37 welding strip, 38-fourth meshing gear set, 41-first welding tooth mold, 42-first ultrasonic welding station, 43-first upper material pulling roller, 44-first lower material pulling roller, 45-first servo motor, 46-second servo motor, 47-welding block, 48-first meshing gear set, 51-upper cutting roller, 52-lower cutting roller, 53-second upper material pulling roller, 54-second lower material pulling roller, 55-third servo motor, 56-fourth servo motor, 57-cutter, 58-second meshing gear set, 59-third meshing gear set, 81-second bracket, 82-unwinding roller, 9 1-second frame, 92-upper plate, 93-wire storage device, 94-control electric box, 95-coil, 96-wire board, 97-wire cutting assembly, 98-nozzle, 99-wire tensioner, 910-pigtail ring, 961-bottom plate, 962-vertical plate, 963-coil, 971-front support plate, 972-rear support plate, 973-upper knife shaft, 974-lower knife shaft, 991-tension column, 992-upper tension plate, 993-lower tension plate, 994-spring, 995-adjusting nut. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1As shown, the mask machine of this embodiment includes an unwinding mechanism 8, a nose wire feeding mechanism, an ear wire feeding mechanism 9, a control system, a machine base 7, and a folding mechanism 1, a welding nose wire mechanism 2, a welding edge wire mechanism 3, a welding ear wire mechanism 4, a traction and slitting mechanism 5 and a conveying mechanism 6 coaxially mounted on the machine base from right to left, the unwinding mechanism 8 is arranged on the right side of the folding mechanism 1, the nose wire feeding mechanism is arranged on one side of the machine base 7, and its output end is arranged at the front end of the welding nose wire mechanism 2, the ear wire feeding mechanism 9 is arranged on one side of the machine base 7, and its output end is arranged at the front end of the welding ear wire mechanism 4, the unwinding mechanism 8, the nose wire feeding mechanism, the ear wire feeding mechanism 9, the welding nose wire mechanism 2, the welding edge wire mechanism 3, the welding ear wire mechanism 4, the traction and slitting mechanism 5 and the conveying mechanism 6 are all electrically connected to the control system. The nose wire delivery mechanism adopts a commonly used rubber strip ejection mechanism to spray the nose wire material to the front end of the nose wire welding mechanism 2, the conveying mechanism 6 adopts a commonly used belt conveying structure to convey the mask forward, and the control system adopts a commonly used design system, which mainly controls the operation of multiple mechanisms. The rotating shafts of the nose wire welding mechanism 2, the edge wire welding mechanism 3, the ear wire welding mechanism 4, and the traction and slitting mechanism 5 are the same, with the same size and rotation speed.

[0031] During operation, the control system controls the movement of each mechanism. The unwinding mechanism 8 guides the material roll into the folding mechanism 1 under the traction force of the previous mechanisms, folds the mask sheet into sheets and conveys it forward. The nose wire feeding mechanism conveys the nose wire material to the mask sheet, and the nose wire welding mechanism 2 welds the nose wire of the mask sheet and then conveys it forward to the edge wire welding mechanism 3. The edge wire welding mechanism 3 welds the edge wire of the mask sheet and then conveys it to the ear wire welding mechanism 4. The ear wire feeding mechanism 9 places the ear wire material on the mask sheet and then the ear wire welding mechanism 4 welds the ear wire. The finished mask is then cut by the traction and slitting mechanism 5 and then conveyed to the mask collection area by the conveying mechanism 6. In this embodiment, the folding mechanism, the welding nose line mechanism, the welding edge line mechanism, the welding ear line mechanism, the traction and slitting mechanism and the conveying mechanism are coaxially arranged on the machine base in sequence, and the control system controls the multi-axis of each mechanism to run at the same speed together. Since the axes are at the same speed, the feed amount of the mask sheet in each mechanism is the same, which can achieve precise control, effectively avoid jamming and shutdown, and have high automated production efficiency.

[0032] In this embodiment, if Figure 2 , Figure 3 As shown, the folding mechanism 1 includes a first rotating shaft 11 and a second rotating shaft 12 which are arranged to rotate in parallel on the machine base 7. The first rotating shaft 11 and the second rotating shaft 12 are successively and fixedly sleeved with a plurality of truncated cone-shaped rollers 13 along their axial directions. The rollers 13 on the first rotating shaft 11 are arranged in the opposite direction of the rollers 1 on the second rotating shaft 12 and their sides are attached to each other. The mask sheet coming out of the unwinding mechanism will be tilted and folded after passing through the truncated cone-shaped rollers 13 to form a folded part of the mask.

[0033] In this embodiment, if Figures 2 to 5 As shown, the welding nose line mechanism 2 includes a third welding tooth mold 21, a third ultrasonic welding table 22, a fourth upper drawing roller 23, a fourth lower drawing roller 24, a nose line guide seat 25, a guide wheel 26, a sixth servo motor 27, a seventh servo motor 28, and an eighth servo motor 29. The third welding tooth mold 21 is rotatably installed on the machine base 7 and is located between the welding edge line mechanism 3 and the folding mechanism 1. The third welding tooth mold 21 is provided with a welding ring 210 along its radial direction. The third ultrasonic welding table 22 is installed on the machine base 7 and is pressed against the bottom of the third welding tooth mold 21. The sixth servo motor 27 is arranged on the machine base 7 and is transmission-connected to the third welding tooth mold 21. The fourth upper drawing roller 23 and the fourth lower drawing roller 24 are rotatably installed on the machine base 7 and are located between the third welding tooth mold 21 and the welding edge line mechanism 3. The seventh servo motor 28 is arranged on the machine base 7 and is connected to the fourth lower drawing roller 24 is connected by transmission, the fourth upper material drawing roller 23 is pressed on the fourth lower material drawing roller 24 and is connected by transmission with the fourth lower material drawing roller 24 through the fifth meshing gear set 211 arranged on the machine base 7, the nose wire guide seat 25 is installed between the third welding tooth mold 21 and the folding mechanism 1, and a transverse through hole 212 is opened inside it, the front end of the transverse through hole 212 is located at the inlet end of the third welding tooth mold 21, and the rear end thereof is connected with the nose wire delivery mechanism 10, the upper surface of the nose wire guide seat 25 is opened with a groove 213 connected with the transverse through hole 212, the guide wheel 26 is rotatably installed on the machine base 1, and its bottom is placed in the groove 213, the eighth servo motor 29 is arranged on the machine base 7 and is connected by transmission with the guide wheel 26, the third ultrasonic welding station 22, the sixth servo motor 27, the seventh servo motor 28, and the eighth servo motor 29 are all electrically connected with the control system. The third ultrasonic welding station 22 is a commonly used welding station with ultrasonic function. The control system controls the third ultrasonic welding station 22, the sixth servo motor 27, the seventh servo motor 28, and the eighth servo motor 29 to work. The nose wire feeding mechanism 10 conveys the nose wire to the transverse through hole 212 of the nose wire guide seat 25. The eighth servo motor 29 drives the guide wheel 26 to rotate, driving the nose wire to move forward in the transverse through hole 212 to carry out the mask sheet. The seventh servo motor 28 drives the fourth upper drawing roller 23 and the fourth lower drawing roller 24 to rotate, driving the mask sheet to move forward. The mask sheet passes through the third welding tooth mold 21, and the nose wire is welded under the action of the welding ring 210 of the third welding tooth mold 21 and the third ultrasonic welding station 22.

[0034] In this embodiment, if Figures 2 to 5As shown, the number of the grooves 213 is two, and the two grooves 213 are sequentially located on the nose wire guide seat 25, the number of the guide wheels 26 is two, and the bottoms of the two guide wheels 26 are correspondingly located in the grooves 213, and the two guide wheels are connected by a sixth meshing gear set 214 arranged on the base 7. Multiple grooves 213 cooperate with the guide wheels 26 to enable the nose wire to be accurately delivered to the mask sheet.

[0035] In this embodiment, if Figures 2 to 5 As shown, the nose wire welding mechanism 2 also includes a guide plate 215, which is tilted and fixed on the machine base 7, with its upper end located above the front end of the transverse through hole 212, and its lower end located at the entrance of the third welding tooth mold 21, and a nose wire guide groove 216 is formed between the guide plate 215 and the top surface of the machine base 7. The guide plate 215 and the top surface of the machine base 7 form a nose wire guide groove 216, which facilitates the nose wire to enter the mask sheet and then perform the nose wire welding process.

[0036] In this embodiment, if Figures 2 to 5 As shown, the edge welding mechanism 3 includes a second welding tooth die 31, a second ultrasonic welding platform 32, a third upper drawing roller 33, a third lower drawing roller 34, a fifth servo motor 35 and a sixth servo motor 36. The second welding tooth die 31 is rotatably arranged on the machine base 7 and is located between the welding nose line mechanism 2 and the welding ear line mechanism 4. Two welding strips 37 are arranged parallel to the axial direction of the second welding tooth die 31. The second ultrasonic welding platform 32 is installed on the machine base 7 and is supported on the bottom of the second welding tooth die 31. The fifth servo motor 35 and the second welding tooth die 31 are connected to the welding ear line mechanism 4. The third upper pull roller 33 and the third lower pull roller 34 are rotatably arranged on the machine base 7 and located between the second welding tooth mold 31 and the welding ear line mechanism 4. The sixth servo motor 36 is arranged on the machine base 7 and is connected to the third lower pull roller 34. The third upper pull roller 33 is pressed on the third lower pull roller 34 and is connected to the third lower pull roller 34 through the fourth meshing gear set 38 arranged on the machine base 7. The second ultrasonic welding station 32, the fifth servo motor 35, and the sixth servo motor 36 are all electrically connected to the control system. The second ultrasonic welding station 32 is a commonly used welding station with ultrasonic function. The control system controls the fifth servo motor 35 and the sixth servo motor 36 to work, and the sixth servo motor 36 drives the third upper pull roller 33 and the third lower pull roller 34 to rotate, driving the mask sheet through the second welding tooth mold 31, and the mask sheet is welded under the action of the welding strip 37 of the second welding tooth mold 31 and the second ultrasonic welding station.

[0037] In this embodiment, if Figure 6 , Figure 7 As shown, the ear wire welding mechanism 4 includes a first welding tooth mold 41, a first ultrasonic welding platform 42, a first upper drawing roller 43, a first lower drawing roller 44, a first servo motor 45, and a second servo motor 46. The first welding tooth mold 41 is rotatably arranged on the machine base 7 and is located between the welding edge wire mechanism 3 and the traction and slitting mechanism 5. Two welding blocks 47 are arranged on the first welding tooth mold 41 along its axial direction. The first ultrasonic welding platform 42 is arranged on the machine base 7 through a moving mechanism and is located below the first welding tooth mold 41. The first servo motor 45 is fixed on the machine base 7 and is connected to the first welding tooth mold 41. The first upper material drawing roller 43 and the first lower material drawing roller 44 are rotatably arranged on the machine base 7 and are located parallel to the first welding tooth mold 41 and the traction and slitting mechanism 5. The second servo motor 46 is arranged on the machine base 7 and is in transmission connection with the first lower material drawing roller 44. The first upper material drawing roller 43 is pressed on the first lower material drawing roller 44 and is in transmission connection with the first lower material drawing roller 44 through the first meshing gear set 48 arranged on the machine base 7. The first servo motor 45, the second servo motor 46, the moving mechanism, and the first ultrasonic welding table 42 are all electrically connected to the control system. The moving mechanism adopts a commonly used cylinder to drive the moving mechanism to drive the first ultrasonic welding table 42 to move up and down. The first ultrasonic welding table 42 is a commonly used welding table with ultrasonic function. The control system controls the first servo motor 45, the second servo motor 46, the moving mechanism and the first ultrasonic welding table 42 to work. The rotation of the second servo motor 46 also drives the first upper drawing roller 43 and the first lower drawing roller 44 to rotate. The mask sheet with the ear line material passes through the first welding tooth mold 41 driven by the first upper drawing roller 43 and the first lower drawing roller 44. The moving mechanism drives the first ultrasonic welding table 42 to move upward to the bottom of the first welding tooth mold 41. Since the rear end of the previous ear line material on the mask sheet is close to the front end of the next ear line material, after the first welding tooth mold 41 rotates, the welding block 47 thereon just rotates to the proximal ends of the two ear line materials and under the action of the first ultrasonic welding table 42, the proximal ends of the two ear line materials are welded to the mask sheet.

[0038] In this embodiment, if Figure 6 , Figure 7As shown, the traction and slitting mechanism 5 includes an upper cutting roller 51, a lower cutting roller 52, a second upper material pulling roller 53, a second lower material pulling roller 54, a third servo motor 55 and a fourth servo motor 56. The upper cutting roller 51 and the lower cutting roller 52 are both rotatably arranged on the machine base 7 and are located between the ear welding mechanism 4 and the conveying mechanism 6. The upper cutting roller 51 is provided with a cutter 57 along its axial direction. The third servo motor 55 is arranged on the machine base 1 and is transmission-connected to the lower cutting roller 52. The upper cutting roller 51 is pressed on the lower cutting roller 52 and is engaged with the lower cutting roller 52 through a second meshing gear arranged on the machine base 7. Group 58 is transmission connected to the lower cutting roller 52, the second upper drawing roller 53 and the second lower drawing roller 54 are rotatably arranged on the machine base 7 and are located between the upper cutting roller 51 and the conveying mechanism 6, the fourth servo motor 56 is arranged on the machine base 7 and is transmission connected to the second lower drawing roller 54, the second upper drawing roller 53 is pressed on the second lower drawing roller 54 and is transmission connected to the second lower drawing roller 54 through the third meshing gear group 59 arranged on the machine base 7, and the third servo motor 55 and the fourth servo motor 56 are both electrically connected to the control system. The control system controls the third servo motor 55 and the fourth servo motor 56 to work. The third servo motor 55 drives the upper cutting roller 51 and the lower cutting roller 52 to rotate. The mask sheet with the ear wires welded passes through the upper cutting roller 51 and the lower cutting roller 52 under the action of traction, and the mask sheet is cut by the cutter 57 on the upper cutting roller 51. Since the proximal ends of the two adjacent ear wire materials on the mask sheet are welded to the middle of the mask sheet by the welding block 47 on the first welding tooth die 41, the upper cutting roller 51 just rotates to the junction of the two ear wire materials and cuts from there, so that the front part of the mask material can be cut from the dividing line of the two masks without affecting the firmness of the welding line of the ear wire; the fourth servo motor 56 rotates, driving the second upper drawing roller 53 and the second lower drawing roller 54 to rotate, so that the cut finished masks move forward and are transported to the conveying mechanism, thereby completing the mask cutting process.

[0039] In this embodiment, if Figure 8 As shown, the unwinding mechanism 8 includes a second bracket 81 and three unwinding rollers 82. The second bracket 81 is located on the right side of the folding mechanism 1. The second bracket 81 can be fixed on the machine base 7 or independently set on the outside of the machine base 7. The three unwinding rollers 82 are installed on the second bracket 81. Mask sheets are placed on the unwinding rollers 82. The mask sheets are delivered to the folding mechanism 1 under the traction of the previous mechanisms.

[0040] In this embodiment, if Figures 9 to 11As shown, the ear wire delivery mechanism 9 includes a second bracket 91, an upper plate 92, a wire storage device 93, a control electric box 94, a coil 95, a wire plate 96, a wire cutting assembly 97 and a nozzle 98. The upper plate 92 is fixed on the base 71 and is located between the edge welding wire mechanism 3 and the ear wire welding mechanism 4. The coil 95 is rotatably mounted on the second bracket 91, the wire storage device 93 is mounted on the second bracket 91, the control electric box 94 is fixed on the second bracket 91 and is electrically connected to the wire storage device 93, the wire plate 96, the wire cutting assembly 97 and the nozzle 98 are fixed on the upper plate 92 in sequence, and the nozzle 98 is connected to the external air system. The control electric box 94 is a commonly used control box with a switch control function. The ear wire material on the coil 95 is wound into the wire storage 93. When the ear wire needs to be transported, the ear wire comes out of the wire storage 93, is transported to the wire cutting assembly 97 through the wire guide 96, and is transported to the nozzle 98. The wire cutting assembly 97 cuts the ear wire, and the front section of the ear wire is sprayed onto the mask sheet through the nozzle 98, so that the two ends of the ear wire material are distributed front and back on the mask sheet. Then the ear wire welding mechanism 4 performs the ear wire welding process, and the rear section of the ear wire continues to move forward to the entrance of the nozzle 98 under the traction of the wire cutting assembly 97. Since the wire cutting assembly 97 cuts the ear wire at a fixed length, the fixed length transportation of the ear wire is guaranteed, and the accuracy of ear wire transportation and welding is improved. At the same time, the nozzle 98 is connected to the external air system, and the ear wire is sprayed onto the mask sheet by air power, which simplifies the structure, realizes high-speed mechanical-free transportation of the ear wire, and improves efficiency. The ear wire is wound by the wire storage, which has good wire storage function and unwinding tension.

[0041] like Fig.11 As shown, in this embodiment, the wire board 96 includes a bottom plate 961 transversely fixed on the upper plate 92 and two vertical plates 962 fixed at both ends of the bottom plate 961, and the two vertical plates 962 are relatively installed with a coil 963. The ear wire passes through the two coils 963 and is transported to the cutting assembly 97. The coil 963 guides the ear wire.

[0042] like Fig.11 As shown, in this embodiment, the ear wire delivery mechanism 9 also includes a wire tensioner 99, which is installed on the base plate 961 and located between the two vertical plates 962. The wire tensioner 99 is used to adjust the tension of the ear wire during the delivery process to ensure the delivery accuracy.

[0043] like Fig.11As shown, in this embodiment, the line tensioner 99 includes a tension column 991, an upper tension sheet 992, a lower tension sheet 993, a spring 994 and an adjusting nut 995, the tension column 991 is fixed on the base plate 961, the upper tension sheet 992 and the lower tension sheet 993 are sleeved on the tension column 991, an ear wire channel is formed between the upper tension sheet 992 and the lower tension sheet 993, the adjusting nut 995 is threadedly connected to the top of the tension column 991, the spring 994 is sleeved on the tension column 991, the bottom of the spring 994 is pressed on the upper tension sheet 992, and the top of the spring 994 is pressed on the bottom of the adjusting nut 995. During the ear wire transportation process, the ear wire will press against the bottom of the upper tension sheet 992, giving the upper tension sheet 992 a reaction force. When the ear wire tension needs to be adjusted, the adjusting nut 995 is rotated to compress or release the spring to move the upper tension sheet 992 up or down, thereby increasing or decreasing the pressure of the upper tension sheet 992 on the ear wire, thereby achieving the effect of adjusting the ear wire tension.

[0044] like Fig.10 As shown, in this embodiment, the cutting assembly 97 includes a front support plate 971, a rear support plate 972, an upper knife shaft 973 and a lower knife shaft 974, the front support plate 971 and the rear support plate 972 are relatively fixed on the upper plate 92 longitudinally, the upper knife shaft 973 and the lower knife shaft 974 are rotatably arranged between the front support plate 971 and the rear support plate 972 and are connected to the servo motor fixed on the upper plate 92, the upper knife shaft 973 is pressed parallel to the lower knife shaft 974, and the upper knife shaft 973 and the lower knife shaft 974 are driven by the servo motor to rotate, so that the ear line is cut off when passing through here, the front section of the ear line is sprayed onto the mask sheet through the nozzle 98, and the rear section of the ear line continues to move forward to the entrance of the nozzle 98 under the traction of the upper knife shaft 973 and the lower knife shaft 974, and the ear line is cut off by calculating the length by the servo motor, thereby ensuring the fixed length transportation of the ear line and improving the accuracy of ear line transportation and welding.

[0045] like Fig.11 As shown, in this embodiment, a pigtail ring 910 is provided between the wire cutting assembly 97 and the wire guide plate 96, and the pigtail ring 910 is used to enhance the guiding function of the ear wire transportation.

[0046] The present invention is described above in conjunction with preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A mask machine, characterized in that: It includes an unwinding mechanism, a nose wire feeding mechanism, an ear wire feeding mechanism, a control system, a machine base, and a folding mechanism, a welding nose wire mechanism, a welding edge wire mechanism, a welding ear wire mechanism, a traction and slitting mechanism and a conveying mechanism coaxially installed on the machine base from right to left, the unwinding mechanism is arranged on the right side of the folding mechanism, the nose wire feeding mechanism is arranged on one side of the machine base, and its output end is arranged at the front end of the welding nose wire mechanism, the ear wire feeding mechanism is arranged on one side of the machine base, and its output end is arranged at the front end of the welding ear wire mechanism, the unwinding mechanism, the nose wire feeding mechanism, the ear wire feeding mechanism, the welding nose wire mechanism, the welding edge wire mechanism, the welding ear wire mechanism, the traction and slitting mechanism and the conveying mechanism are all electrically connected to the control system; the welding ear wire mechanism includes a first welding tooth die, a first ultrasonic welding table, a first upper material drawing roller, a first lower material drawing roller, a first servo motor, and a second servo motor, and the first welding tooth die is rotated. On the machine base and located between the welding edge line mechanism and the traction and slitting mechanism, two welding blocks are provided on the first welding tooth mold along its axial direction, the first ultrasonic welding table is arranged on the machine base through a moving mechanism and is located below the first welding tooth mold, the first servo motor is fixed on the machine base and is connected to the first welding tooth mold in transmission, the first upper drawing roller and the first lower drawing roller are rotatably arranged on the machine base and are located parallel to the first welding tooth mold and the traction and slitting mechanism, the second servo motor is arranged on the machine base and is connected to the first lower drawing roller in transmission, the first upper drawing roller is pressed on the first lower drawing roller and is connected to the first lower drawing roller in transmission through a first meshing gear set arranged on the machine base, and the first servo motor, the second servo motor, the moving mechanism, and the first ultrasonic welding table are all electrically connected to the control system.

2. The mask machine according to claim 1, characterized in that: The traction and slitting mechanism includes an upper cutting roller, a lower cutting roller, a second upper drawing roller, a second lower drawing roller, a third servo motor and a fourth servo motor. The upper cutting roller and the lower cutting roller are both rotatably arranged on the machine base and located between the welding ear line mechanism and the conveying mechanism. The upper cutting roller is provided with a cutting knife along its axial direction. The third servo motor is arranged on the machine base and is transmission connected to the lower cutting roller. The upper cutting roller is pressed on the lower cutting roller and is transmission connected to the lower cutting roller through a second meshing gear set arranged on the machine base. The second upper drawing roller and the second lower drawing roller are rotatably arranged on the machine base and located between the upper cutting roller and the conveying mechanism. The fourth servo motor is arranged on the machine base and is transmission connected to the second lower drawing roller. The second upper drawing roller is pressed on the second lower drawing roller and is transmission connected to the second lower drawing roller through the third meshing gear set arranged on the machine base. The third servo motor and the fourth servo motor are both electrically connected to the control system.

3. The mask machine according to claim 1, characterized in that: The ear wire delivery mechanism includes a first bracket, an upper plate, a wire storage device, a control electrical box, a coil, a wire plate, a wire cutting assembly and a nozzle. The upper plate is fixed on the machine base, the coil is rotatably mounted on the first bracket, the wire storage device is mounted on the first bracket, the control electrical box is fixed on the first bracket and electrically connected to the wire storage device, the wire plate, the wire cutting assembly and the nozzle are fixed on the upper plate in sequence, and the nozzle is connected to the external air system.

4. The mask machine according to claim 1, characterized in that: The welding edge line mechanism includes a second welding tooth mold, a second ultrasonic welding table, a third upper drawing roller, a third lower drawing roller, a fifth servo motor and a sixth servo motor. The second welding tooth mold is rotatably arranged on the machine base and is located between the welding nose line mechanism and the welding ear line mechanism. Two welding strips are arranged parallel to the axial direction of the second welding tooth mold. The second ultrasonic welding table is installed on the machine base and is against the bottom of the second welding tooth mold. The fifth servo motor is connected to the second welding tooth mold in transmission. The third upper drawing roller and the third lower drawing roller are rotatably arranged on the machine base and are located between the second welding tooth mold and the welding ear line mechanism. The sixth servo motor is arranged on the machine base and is connected to the third lower drawing roller in transmission. The third upper drawing roller is pressed on the third lower drawing roller and is connected to the third lower drawing roller in transmission through a fourth meshing gear set arranged on the machine base. The second ultrasonic welding table, the fifth servo motor and the sixth servo motor are all electrically connected to the control system.

5. The mask machine according to claim 1, characterized in that: The welding nose line mechanism includes a third welding tooth mold, a third ultrasonic welding table, a fourth upper drawing roller, a fourth lower drawing roller, a nose line guide seat, a guide wheel, a sixth servo motor, a seventh servo motor, and an eighth servo motor. The third welding tooth mold is rotatably installed on the machine base and is located between the welding edge line mechanism and the folding mechanism. The third welding tooth mold is provided with a welding ring along its radial direction. The third ultrasonic welding table is installed on the machine base and is against the bottom of the third welding tooth mold. The sixth servo motor is arranged on the machine base and is transmission-connected with the third welding tooth mold. The fourth upper drawing roller and the fourth lower drawing roller are rotatably installed on the machine base and are located between the third welding tooth mold and the welding edge line mechanism. The seventh servo motor is arranged on the machine base and is connected to the fourth lower drawing roller. Transmission connection, the fourth upper drawing roller is pressed on the fourth lower drawing roller and is transmission connected with the fourth lower drawing roller through a fifth meshing gear set arranged on the machine base, the nose wire guide seat is installed between the third welding tooth mold and the folding mechanism, and a transverse through hole is opened inside it, the front end of the transverse through hole is located at the inlet end of the third welding tooth mold, and the rear end thereof is connected with the nose wire feeding mechanism, and a groove connected with the transverse through hole is opened on the upper surface of the nose wire guide seat, the guide wheel is rotatably installed on the machine base, and its bottom is placed in the groove, the eighth servo motor is arranged on the machine base and is transmission connected with the guide wheel, and the third ultrasonic welding table, the sixth servo motor, the seventh servo motor, and the eighth servo motor are all electrically connected to the control system.

6. The mask machine according to claim 5, characterized in that: There are two grooves, and the two grooves are located sequentially on the nose line guide seat. There are two guide wheels, and the bottoms of the two guide wheels are located in the grooves respectively. The two guide wheels are connected by a sixth meshing gear set arranged on the machine base.

7. The mask machine according to claim 5, characterized in that: The welding nose wire mechanism also includes a guide plate, which is tilted and fixed on the machine base, with its upper end located above the front end of the transverse through hole and its lower end located at the entrance of the third welding tooth mold, and a nose wire guide groove is formed between the guide plate and the top surface of the machine base.

8. The mask machine according to any one of claims 1 to 7, characterized in that: The folding mechanism includes a first rotating shaft and a second rotating shaft which are arranged on the machine base for parallel rotation. The first rotating shaft and the second rotating shaft are respectively and sequentially fixedly sleeved with a plurality of truncated cone-shaped rollers along their axial directions. The rollers on the first rotating shaft are arranged in the opposite direction of the rollers on the second rotating shaft and their sides are in contact with each other.

9. The mask machine according to any one of claims 1 to 7, characterized in that: The unwinding mechanism comprises a second bracket and three unwinding rollers, the second bracket is located on the right side of the folding mechanism, and the three unwinding rollers are mounted on the second bracket.

Images