A mask body ear welding ring head belt device

Abstract

The utility model relates to a mask machine technical field especially is a kind of mask body ear turning welding annular head belt device, including mask body conveying mechanism, multiple conveying carriers, annular head belt feeding device, annular head belt feeding device and ear turning welding device, conveying carrier is equipped with positioning cavity, both sides of positioning cavity are recessed and are equipped with ear turning avoidance hole, conveying carrier is equipped with pressure material piece, and pressure material piece is used to tightly press in positioning cavity in mask body, the top surface of conveying carrier is equipped with four positioning columns, four positioning columns are distributed in the periphery of positioning cavity, annular head belt feeding device is used to pick up annular head belt and set annular head belt in four positioning columns, ear turning welding device is used to carry out ear turning and welding to both sides ear of mask body. The present application realizes the automatic feeding, feeding and welding fixation of annular head belt, to automatically produce head belt mask by one annular head belt fixed on mask body, and the annular head belt forms two head belts capable of length adjustment on head belt mask.

Description

Technical Field

[0001] This utility model relates to the field of mask machine technology, and in particular to a device for welding the ear loops of a mask body. Background Technology

[0002] Existing headband masks typically consist of two headbands welded onto the mask body, one above the other, with each headband's ends welded to both sides of the mask body. Current mask machines first use a headband pulling mechanism to pull the headband to the desired length, then a clamping mechanism holds the ends of the headband. Next, a cutting mechanism cuts the headband, leaving the clamping mechanism holding a fixed-length headband. The clamping mechanism then places the ends of the fixed-length headband onto welding positions on both sides of the mask body, and a welding mechanism welds the ends of the headband to the mask body. This method of producing headband masks not only involves a cumbersome production process but also requires a complex and costly headband mask machine.

[0003] Among existing patents, Chinese patent application number 201910817635.3 discloses a ring ear loop mask machine and a ring ear loop mask production process. The ring ear loop mask machine of the present invention includes a worktable, on which a feeding station, a mask welding station, and a discharging station are arranged along the mask conveying track. There are two sets of mask welding stations, located on both sides of the mask conveying track. The mask welding station has a mask welding seat and a mask welding head. The mask welding seat is located outside the mask conveying track, and the mask welding head is located directly above the mask welding seat. The mask welding station also includes a mask head pushing block, which is installed on the worktable and perpendicular to the mask conveying track. Although the ring ear loop mask machine folds the mask head to wrap the ring ear loop through the mask head pushing block and then welds the mask head to the mask body, it is still necessary to first cut the ear loop to a preset length, clamp and overlap the two ends of the ear loop and weld them to form a ring ear loop, and then fix the two ring ear loops to the two mask heads of the mask body respectively. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a device for welding the ear flaps and ring headbands of a mask body.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for welding the ear flaps of a mask body and annular headbands includes a mask body conveying mechanism, multiple conveying carriers mounted on the conveying surface of the mask body conveying mechanism, an annular headband feeding device disposed on one side of the mask body conveying mechanism, an annular headband loading device mounted above the mask body conveying mechanism and the annular headband feeding device, and an ear flap welding device mounted above the mask body conveying mechanism. The annular headband loading device and the ear flap welding device are arranged sequentially along the conveying direction of the mask body conveying mechanism. A positioning cavity for supporting the mask body is opened in the middle of the conveying carrier, and ear flap avoidances are recessed on both sides of the positioning cavity. The conveyor is equipped with a pressing component that can be opened or closed to press the mask body tightly into the positioning cavity. The top surface of the conveyor is equipped with four positioning posts, which are distributed in a rectangle around the positioning cavity. One flap clearance hole is located between two positioning posts, and another flap clearance hole is located between two other positioning posts. The ring headband feeding device is used to pick up the ring headband supplied by the ring headband feeding device and put the ring headband over the four positioning posts. The flap welding device is used to flap and weld the two sides of the mask body to weld the two sides of the ring headband to the two sides of the mask body.

[0007] Furthermore, the annular headband feeding device includes a circulating feeding mechanism located on one side of the mask body conveying mechanism and multiple feeding carriers installed on the circulating feeding mechanism. The multiple feeding carriers are distributed at equal intervals along the circulating feeding surface of the circulating feeding mechanism, and the circulating feeding mechanism is used to drive the multiple feeding carriers to move cyclically.

[0008] Furthermore, the feeding carrier includes a feeding plate installed on the circulating feeding surface of the circulating feeding mechanism and two hanging plates set at both ends of the feeding plate, with an annular headband sleeved over the two hanging plates.

[0009] Furthermore, the annular headband feeding device includes a support frame, a movable plate movably mounted on the support frame, a translation drive mechanism mounted on the support frame and used to drive the movable plate to move horizontally, a spacing adjustment mechanism mounted on the movable plate, and two sets of feeding robots drivenly connected to the spacing adjustment mechanism. The spacing adjustment mechanism is used to adjust the spacing between the two sets of feeding robots.

[0010] Furthermore, the loading robot includes a lifting drive mechanism installed on the spacing adjustment mechanism, a lifting plate installed on the lifting end of the lifting drive mechanism, and two gripper modules installed at intervals on the lifting plate.

[0011] Furthermore, the ear-flipping welding device includes a frame mounted above the mask body conveying mechanism, two welding mechanisms symmetrically and inclinedly mounted on the frame, and an upper ear-flipping mechanism located below the mask body conveying mechanism. The upper ear-flipping mechanism includes an upper drive module, an upper top plate mounted on the upper top of the upper drive module, two welding bottom molds mounted on the upper top plate, and two ear-flipping plates mounted on the upper top plate. The two welding bottom molds are located between the two ear-flipping plates. The two welding mechanisms, the two welding bottom molds, and the two ear-flipping plates are respectively arranged in a one-to-one correspondence. A welding slope is provided on the side of the welding bottom mold near the ear-flipping plate. A welding through hole is opened at the top of the ear-flipping plate, which corresponds to the welding slope. The welding end of the welding mechanism can pass through the welding through hole. A through hole is opened in the middle of the positioning cavity, through which the welding bottom mold and the ear-flipping plate can pass.

[0012] Furthermore, the ear-flipping welding device also includes a pressing and abutting mechanism installed on the frame and located between the two welding mechanisms. The pressing and abutting mechanism includes a vertical rod installed on the frame, a pressing driver installed on the vertical rod, and a pressing member installed on the pressing drive end of the pressing driver. Two inclined pressure plates are symmetrically and obliquely arranged on both sides of the pressing member. The inclined pressure plates have clearance grooves for the welding end of the welding mechanism to pass through. The clearance grooves are corresponding to the welding through holes.

[0013] Furthermore, the welding mechanism includes a mounting base inclinedly mounted on the frame, a slide block slidably connected to the mounting base, an ultrasonic welding head mounted on the slide block, a motion driver mounted on the mounting base for driving the slide block closer to or away from the conveyor, a slider slidably connected to the bottom surface of the slide block, an inclined plate mounted on the slider and located below the ultrasonic welding head, and a tension spring elastically connected to the slider and the slide block. The inclined plate can penetrate the welding through hole and abut against the welding inclined surface. Initially, the pressure surface of the inclined plate extends beyond the welding surface of the ultrasonic welding head.

[0014] Furthermore, there are four pressure components, with two pressure components located at one end of the conveyor and the other two pressure components located at the other end of the conveyor. Each flap clearance hole is located between the corresponding two pressure components.

[0015] Furthermore, the pressing component includes a rotating pressing component and a torsion spring. The conveying carrier has a rotating groove. The middle part of the rotating pressing component is rotatably connected to the inner wall of the rotating groove. The torsion spring is set in the rotating groove. One end of the torsion spring is connected to the driving end of the rotating pressing component, and the other end of the torsion spring is fixedly connected to the conveying carrier. At the beginning, the elastic force of the torsion spring causes the pressing end of the rotating pressing component to rotate onto the positioning cavity.

[0016] The beneficial effects of this utility model are as follows: In practical applications, after opening the pressing component, the mask body (preferably a cup-shaped mask body) is placed in the positioning cavity of the conveying carrier. Then, the pressing component presses the mask body tightly in the positioning cavity. The mask body conveying mechanism conveys multiple conveying carriers, causing the conveying carrier carrying the mask body to move to below the annular headband feeding device and to one side of the annular headband feeding device. At the same time, the annular headband feeding device supplies the annular headband to the feeding position. Then, the annular headband feeding device picks up the annular headband supplied by the annular headband feeding device and places the annular headband into the feeding position. The headband is pulled open and fitted onto four positioning posts, making the circular headband rectangular and positioned on the mask body. The two segments of the circular headband are located on the two side ears of the mask body. When the conveyor carrying the circular headband and the mask body moves to the ear-folding welding device, the ear-folding end of the welding device first passes through the ear-folding clearance hole and folds up the two side ears of the mask body. The welding end of the welding device then folds and welds the folded side ears onto the mask body, so that the two segments of the circular headband are wrapped around the two side ears of the mask body, thus achieving the welding of the circular headband to the mask body. This invention achieves automated feeding, loading, and welding of the circular headband, enabling automated production of headband masks with a single circular headband fixed to the mask body, and this single circular headband forming two adjustable headbands on the headband mask. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the annular headband feeding device of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the conveying vehicle of this utility model.

[0020] Figure 4 This is a three-dimensional structural schematic diagram of the conveying vehicle of this utility model from another perspective.

[0021] Figure 5 This is a three-dimensional structural diagram of the annular headband feeding device of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the flap welding device of this utility model.

[0023] Figure 7 This is a three-dimensional structural diagram of the welding mechanism of this utility model.

[0024] Figure 8 This is a three-dimensional structural diagram of the top flap mechanism of this utility model.

[0025] Figure 9This is a three-dimensional structural diagram of the downward pressing and resisting mechanism of this utility model.

[0026] Figure 10 This is a schematic diagram of the structure of the headband mask with a ring-shaped headband produced according to this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Mask body conveying mechanism; 2. Conveying carrier; 3. Circular headband feeding device; 4. Circular headband loading device; 5. Ear-flipping welding device; 6. Positioning cavity; 7. Ear-flipping clearance hole; 8. Pressing component; 9. Positioning column; 10. Circulating feeding mechanism; 11. Feeding carrier; 12. Feeding plate; 13. Hanging plate; 14. Detection slot; 15. Support frame; 16. Moving plate; 17. Translation drive mechanism; 18. Spacing adjustment mechanism; 19. Loading robot; 20. Lifting drive mechanism; 21. Lifting plate; 22. Gripper module; 23. Frame; 24. Welding mechanism; 25. Top ear-flipping mechanism; 26. Top drive module; 27. Top plate 28. Welding bottom mold; 29. ​​Flip-ear plate; 30. Welding bevel; 31. Welding through hole; 32. Through hole; 33. Pressing contact mechanism; 34. Upright pole; 35. Pressing driver; 36. Pressing component; 37. Inclined pressure plate; 38. Clearance groove; 39. Mounting base; 40. Slide seat; 41. Ultrasonic welding head; 42. Moving driver; 43. Slider; 44. Inclined sliding plate; 45. Tension spring; 46. Rotating pressure component; 47. Torsion spring; 48. Rotating groove; 49. L-shaped plate; 50. Driving arc plate; 51. Annular headband; 52. Mask body; 53. Side ear; 54. Mounting plate; 55. Pulley; 56. Transmission belt; 57. Rotation drive module. Detailed Implementation

[0029] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0030] like Figures 1 to 10As shown, this utility model provides a mask body flap welding ring headband device, which includes a mask body conveying mechanism 1, multiple conveying carriers 2 installed on the conveying surface of the mask body conveying mechanism 1, a ring headband feeding device 3 set on one side of the mask body conveying mechanism 1, a ring headband loading device 4 mounted above the mask body conveying mechanism 1 and the ring headband feeding device 3, and a flap welding device 5 mounted above the mask body conveying mechanism 1. The ring headband loading device 4 and the flap welding device 5 are arranged sequentially along the conveying direction of the mask body conveying mechanism 1. The middle of the conveying carrier 2 is provided with a positioning cavity 6 for carrying the mask body 52, and both sides of the positioning cavity 6 are recessed with flap clearance holes. 7. The conveyor 2 is equipped with a pressing component 8 that can be opened or closed. The pressing component 8 is used to press the mask body 52 into the positioning cavity 6. The top surface of the conveyor 2 is provided with four positioning posts 9. The four positioning posts 9 are distributed in a rectangular shape around the positioning cavity 6. One flapping clearance hole 7 is located between two positioning posts 9, and another flapping clearance hole 7 is located between two other positioning posts 9. The annular headband feeding device 4 is used to pick up the annular headband 51 supplied by the annular headband feeding device 3 and put the annular headband 51 on the four positioning posts 9. The flapping welding device 5 is used to flap and weld the two side ears 53 of the mask body 52 to weld the two sides of the annular headband 51 to the two side ears 53 of the mask body 52.

[0031] In practical applications, after opening the pressing component 8, the mask body 52 (preferably a cup-shaped mask body 52) is placed in the positioning cavity 6 of the conveying carrier 2. Then, the pressing component 8 presses the mask body 52 tightly in the positioning cavity 6. The mask body conveying mechanism 1 conveys multiple conveying carriers 2, causing the conveying carrier 2 carrying the mask body 52 to move to the bottom of the annular headband feeding device 4 and to one side of the annular headband feeding device 3. At the same time, the annular headband feeding device 3 supplies the annular headband 51 to the feeding position. Then, the annular headband feeding device 4 picks up the annular headband 51 supplied by the annular headband feeding device 3, pulls the annular headband 51 open, and fits it onto the four fixed headbands. The annular headband 51 is rectangular and positioned on the mask body 52, with its two segments located on the two side ears 53 of the mask body 52. ​​When the conveyor 2 carrying the annular headband 51 and the mask body 52 moves to the ear-flipping welding device 5, the ear-flipping end of the device first passes through the ear-flipping clearance hole 7 and flips up the two side ears 53 of the mask body 52. ​​The welding end of the device then folds and welds the flipped side ears 53 onto the mask body 52, so that the two segments of the annular headband 51 are wrapped around the two side ears 53 of the mask body 52, thus achieving the welding of the annular headband 51 to the mask body 52. ​​This invention achieves automated feeding, loading, and welding of the annular headband 51, enabling automated production of a headband mask with one annular headband 51 fixed to the mask body 52. ​​The annular headband 51 forms two adjustable headbands on the headband mask.

[0032] Specifically, the mask body conveying mechanism 1 can be a linear circulating conveying mechanism, such as a belt conveyor mechanism.

[0033] In this embodiment, the annular headband feeding device 3 includes a circulating feeding mechanism 10 located on one side of the mask body conveying mechanism 1 and a plurality of feeding carriers 11 installed on the circulating feeding mechanism 10. The plurality of feeding carriers 11 are distributed at equal intervals along the circulating feeding surface of the circulating feeding mechanism 10, and the circulating feeding mechanism 10 is used to drive the plurality of feeding carriers 11 to move cyclically.

[0034] In practical applications, the annular headband 51 is fitted onto the feeding carrier 11. The circulating feeding mechanism 10 drives multiple feeding carriers 11 to circulate and transport the annular headband 51 to the loading position so that the annular headband loading device 4 can pick it up, thereby realizing the automated feeding of the annular headband 51.

[0035] In this embodiment, the feeding carrier 11 includes a feeding plate 12 installed on the circulating feeding surface of the circulating feeding mechanism 10 and two hanging plates 13 disposed at both ends of the feeding plate 12, and an annular headband 51 is sleeved on the two hanging plates 13.

[0036] In practical applications, the annular headband 51 is fitted onto two hanging plates 13, forming two belt segments between the two hanging plates 13. These two belt segments are picked up by the annular headband feeding device 4. This structural design not only facilitates the fitting of the annular headband 51 onto the two hanging plates 13, but also facilitates the annular headband feeding device 4 in picking up the annular headband 51 from the feeding carrier 11.

[0037] Specifically, a detection slot 14 is provided in the middle of the hanging plate 13, and a detector is installed at the frame output end of the circulating feeding mechanism 10. The detection slot 14 is used for the detector to detect the annular headband 51 on the hanging plate 13. Specifically, the detector can be a sensor or an optical fiber, etc. In practical applications, when the detector detects an annular headband 51 on the feeding carrier 11, the detector sends feedback signals to the circulating feeding mechanism 10 and the annular headband feeding device 4, causing the circulating feeding mechanism 10 to stop conveying the feeding carrier 11, and the annular headband feeding device 4 to pick up the annular headband 51 on the feeding carrier 11. After the annular headband feeding device 4 picks up the annular headband 51, the detector can no longer detect the annular headband 51, and the circulating feeding mechanism 10 drives multiple feeding carriers 11 to move until the detector detects the annular headband 51 on the next feeding carrier 11.

[0038] In this embodiment, the annular headband feeding device 4 includes a support frame 15, a movable plate 16 movably disposed on the support frame 15, a translation drive mechanism 17 mounted on the support frame 15 and used to drive the movable plate 16 to translate, a spacing adjustment mechanism 18 mounted on the movable plate 16, and two sets of feeding robots 19 drivenly connected to the spacing adjustment mechanism 18. The spacing adjustment mechanism 18 is used to adjust the spacing between the two sets of feeding robots 19. Specifically, the feeding robot 19 includes a lifting drive mechanism 20 mounted on the spacing adjustment mechanism 18, a lifting plate 21 mounted on the lifting end of the lifting drive mechanism 20, and two gripper modules 22 mounted on the lifting plate 21 at intervals. The two gripper modules 22 are used to grip both ends of a section of the annular headband 51.

[0039] In practical applications, after the feeding carrier 11 conveys the annular headband 51 to the loading position, the translation drive mechanism 17 drives the two sets of loading robots 19 to move above the annular headband 51. Since the annular headband 51 is fitted onto the two hanging plates 13 of the feeding carrier 11 and forms two belt segments, the two sets of loading robots 19 pick up these two belt segments respectively. Specifically, the lifting drive mechanism 20 drives the lifting plate 21 and the two gripper modules 22 to descend, so that each belt segment of the annular headband 51 is located in the gripper of the two gripper modules 22. Then, the gripper of the two gripper modules 22 closes to clamp the two ends of one belt segment of the annular headband 51, so that the four gripper modules 22 on the two sets of loading robots 19 clamp the annular headband 51 respectively. The two ends of the two belt segments are then lifted, and the lifting drive mechanism 20 drives the lifting plate 21 and the two gripper modules 22 to move upward, so that the two sets of loading robots 19 clamp the annular headband 51 and move upward. Then, the translation drive mechanism 17 drives the two sets of loading robots 19 and the clamped annular headband 51 to move above the mask body 52 carried by the conveyor 2. At the same time, the spacing adjustment mechanism 18 drives the two sets of loading robots 19 to move away from each other, so that the annular headband 51 is stretched into a rectangle. Then, the two sets of loading robots 19 put the annular headband 51 stretched into a rectangle around the four positioning posts 9, so that the other two belt segments of the annular headband 51 are located on the two side ears 53 of the mask body 52, so as to realize the automated loading of the annular headband 51.

[0040] Specifically, the spacing adjustment mechanism 18 includes a mounting plate 54 disposed on the movable plate 16, at least two pulleys 55 rotatably connected to both ends of the mounting plate 54, a transmission belt 56 sleeved on all the pulleys 55, and a rotation drive module 57 mounted on the mounting plate 54 for rotating one of the pulleys 55. A set of loading robots 19 is slidably connected to the mounting plate 54 and mounted on the upper layer of the transmission belt 56, and another set of loading robots 19 is slidably connected to the mounting plate 54 and mounted on the lower layer of the transmission belt 56.

[0041] In practical applications, the rotation drive module 57 drives one of the pulleys 55 to rotate in both directions. This rotating pulley 55 cooperates with other pulleys 55 to drive the transmission belt 56 to rotate in both directions. Since the two sets of loading robots 19 are respectively installed on the upper and lower belt layers of the transmission belt 56, the rotating transmission belt 56 can drive the two sets of loading robots 19 to move closer or further away from each other, so as to adjust the distance between the two sets of loading robots 19.

[0042] In this embodiment, the ear-flipping welding device 5 includes a frame 23 mounted above the mask body conveying mechanism 1, two welding mechanisms 24 symmetrically and inclinedly mounted on the frame 23, and an upper ear-flipping mechanism 25 located below the mask body conveying mechanism 1. The upper ear-flipping mechanism 25 includes an upper drive module 26, an upper top plate 27 mounted on the upper top of the upper drive module 26, two welding bottom molds 28 disposed on the upper top plate 27, and two ear-flipping plates 29 disposed on the upper top plate 27. The bottom mold 28 is located between the two flap plates 29. The two welding mechanisms 24, the two welding bottom molds 28, and the two flap plates 29 are respectively set one-to-one. The welding bottom mold 28 is provided with a welding slope 30 on the side near the flap plate 29. The top of the flap plate 29 is provided with a welding through hole 31 corresponding to the welding slope 30. The welding end of the welding mechanism 24 can pass through the welding through hole 31. The middle part of the positioning cavity 6 is provided with a through hole 32. The welding bottom mold 28 and the flap plate 29 can pass through the through hole 32.

[0043] In practical applications, the conveyor 2 transports the mask body 52 and the annular headband 51 between the two welding mechanisms 24. Then, the upper drive module 26 drives the upper plate 27, along with the two welding bottom molds 28 and two flap plates 29, to rise and penetrate the through hole 32. This causes the welding slopes 30 of the two welding bottom molds 28 to abut against the inner wall of the mask body 52, and the two flap plates 29 to flip up the two side ears 53 of the mask body 52. ​​Finally, the welding end of the welding mechanism 24 tilts and moves, penetrating the welding through hole 31 and abutting against the welding slope 30. The side ear 53, after being folded upwards, is welded to the mask body 52 in a folded manner, so that the side ear 53 of the mask body 52 partially covers the annular headband 51. Two welding mechanisms 24 weld the two side ear 53s of the mask body 52 respectively to fix the annular headband 51 to the two side ear 53s of the mask body 52, so that one annular headband 51 can form two headbands of the headband mask. Since the annular headband 51 can move relative to the side ear 53 of the mask body 52, the length of the two headbands of the headband mask is adjustable. It should be noted that the side ear 53 welded to the outer wall of the mask body 52 will form a side ear hole, that is, the annular headband 51 passes through the side ear hole.

[0044] In this embodiment, the flap welding device 5 further includes a pressing and abutting mechanism 33 installed on the frame 23 and located between the two welding mechanisms 24. The pressing and abutting mechanism 33 includes a vertical rod 34 installed on the frame 23, a pressing driver 35 installed on the vertical rod 34, and a pressing member 36 installed on the pressing drive end of the pressing driver 35. Two inclined pressure plates 37 are symmetrically and obliquely arranged on both sides of the pressing member 36. The inclined pressure plates 37 have clearance grooves 38 for the welding end of the welding mechanism 24 to pass through. The clearance grooves 38 are correspondingly arranged with the welding through hole 31.

[0045] Before the welding mechanism 24 welds the upward-curved side ears 53, the downward-pressing actuator 35 of the downward-pressing contact mechanism 33 drives the downward-pressing component 36 to move downward, so that the two inclined pressure plates 37 on the downward-pressing component 36 abut against the outer wall of the mask body 52. ​​The welding inclined surface 30 and the inclined pressure plates 37 abut against the inner and outer walls of the mask body 52 respectively, so as to ensure the stability of the mask body 52 and the flatness of the part of the mask body 52 to be welded, thereby ensuring the quality of subsequent welding. Among them, the avoidance groove 38 on the inclined pressure plate 37 can allow the welding end of the welding mechanism 24 to pass through, avoiding collision or interference between the welding mechanism 24 and the inclined pressure plate 37.

[0046] In this embodiment, the welding mechanism 24 includes a mounting base 39 inclinedly mounted on the frame 23, a slide 40 slidably connected to the mounting base 39, an ultrasonic welding head 41 mounted on the slide 40, a moving driver 42 mounted on the mounting base 39 and used to drive the slide 40 closer to or further away from the transport carrier 2, a slider 43 slidably connected to the bottom surface of the slide 40, an inclined plate 44 mounted on the slider 43 and located below the ultrasonic welding head 41, and a tension spring 45 elastically connected to the slider 43 and the slide 40. The inclined plate 44 can penetrate the welding through hole 31 and abut against the welding inclined surface 30. Initially, the tension spring 45 is in a retracted state, and the pressing surface of the inclined plate 44 extends beyond the welding surface of the ultrasonic welding head 41.

[0047] In practical applications, when the welding slope 30 and the inclined pressure plate 37 abut against the inner and outer walls of the mask body 52 respectively, the moving driver 42 drives the slide 40, along with the ultrasonic welding head 41, the slider 43 and the inclined plate 44, to move towards the mask body 52 at an angle. Since the pressure surface of the inclined plate 44 extends beyond the welding surface of the ultrasonic welding head 41, the pressure surface of the inclined plate 44 first contacts the upward-folded side ear 53 and pushes the side ear 53 to fold against the outer wall of the mask body 52. ​​When the pressure surface of the inclined plate 44 presses the side ear 53 tightly against the outer wall of the mask body 52 on the welding slope 30, as the slide 40 moves, the inclined plate 44 will be compressed and stretch the tension spring 45. The ultrasonic welding head 41 will continue to tilt downward relative to the inclined plate 44, so that the welding surface of the ultrasonic welding head 41 passes through the welding hole 31 and welds the side ear 53 in a folded manner onto the outer wall of the mask body 52 that is abutted by the welding slope 30. This structural design allows the inclined plate 44 to first fold the side ear 53 against the outer wall of the mask body 52, and then weld the side ear 53 to the outer wall of the mask body 52 through the ultrasonic welding head 41, thereby improving the welding quality of the side ear 53 and the outer wall of the mask body 52.

[0048] In this embodiment, there are four pressing components 8. Two pressing components 8 are located at one end of the conveying carrier 2, and the other two pressing components 8 are located at the other end of the conveying carrier 2. Each flap clearance hole 7 is located between the corresponding two pressing components 8. In practical applications, the four pressing components 8 press the mask body 52 tightly into the positioning cavity 6 of the conveying carrier 2. By reasonably arranging the four pressing components 8 on the conveying carrier 2, the two flap plates 29 can stably and smoothly flip up the two side ears 53 of the mask body 52.

[0049] In this embodiment, the pressing component 8 includes a rotating pressing component 46 and a torsion spring 47. The conveying carrier 2 has a rotating groove 48. The middle part of the rotating pressing component 46 is rotatably connected to the inner wall of the rotating groove 48. The torsion spring 47 is disposed in the rotating groove 48. One end of the torsion spring 47 is connected to the driving end of the rotating pressing component 46, and the other end of the torsion spring 47 is fixedly connected to the conveying carrier 2. At the beginning, the elastic force of the torsion spring 47 causes the pressing end of the rotating pressing component 46 to rotate onto the positioning cavity 6.

[0050] In practical applications, pressure is applied to the driving end of the rotating pressure member 46 to overcome the elastic force of the torsion spring 47, so that the rotating pressure member 46 can rotate relative to the conveying carrier 2, thereby causing the pressing end of the rotating pressure member 46 to rotate away from the positioning cavity 6. At this time, the pressing member 8 is in the open state, so that the mask body 52 can be taken out from the positioning cavity 6 or placed in the positioning cavity 6. When the pressure on the driving end of the rotating pressure member 46 is released, the rebound force of the torsion spring 47 drives the rotating pressure member 46 to rotate in the opposite direction (reset rotation), so that the pressing end of the rotating pressure member 46 rotates to the positioning cavity 6 and presses the mask body 52 into the positioning cavity 6.

[0051] Specifically, the rotating pressing component 46 includes an L-shaped plate 49 and a driving arc plate 50 integrally connected to one end of the L-shaped plate 49. The connection between the L-shaped plate 49 and the driving arc plate 50 is rotatably connected to the inner wall of the rotating groove 48. One end of the torsion spring 47 is connected to the driving arc plate 50. The end of the L-shaped plate 49 away from the driving arc plate 50 is used to press the mask body 52 into the positioning cavity 6. This structural design facilitates the control of the rotation of the rotating pressing component 46, thereby facilitating the opening or closing of the pressing component 8.

[0052] It should be noted that the annular headband 51 fitted around the four positioning posts 9 does not affect the normal rotation of the rotating pressure member 46, or the rotating pressure member 46 will not interfere with the removal of the mask with the annular headband 51 fixed on it. Of course, the rotating pressure member 46 can also be opened after the mask with the annular headband 51 fixed on it is removed. Because the rotating pressure member 46 is elastically connected to the conveyor 2 via the torsion spring 47, when the mask with the annular headband 51 fixed on it is taken up, as the mask moves up, the mask will drive the rotating pressure member 46 to open and rotate until the mask is completely removed. Then, the rotating pressure member 46 will close and rotate under the rebound force of the torsion spring 47. Alternatively, the rotating pressure member 46 can be opened and rotated at the same time as the mask with the annular headband 51 fixed on it is taken up.

[0053] All technical features in this embodiment can be freely combined according to actual needs.

[0054] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A ring-shaped headband device for welding ear flaps on a mask body, characterized in that: The mask body conveying mechanism includes multiple conveying carriers mounted on the conveying surface of the mask body conveying mechanism, an annular headband feeding device located on one side of the mask body conveying mechanism, an annular headband loading device mounted above the mask body conveying mechanism and the annular headband feeding device, and an ear-flaring welding device mounted above the mask body conveying mechanism. The annular headband loading device and the ear-flaring welding device are arranged sequentially along the conveying direction of the mask body conveying mechanism. A positioning cavity for supporting the mask body is opened in the middle of the conveying carrier, and ear-flaring clearance holes are recessed on both sides of the positioning cavity. There are pressure components that can be opened or closed, which are used to press the mask body tightly in the positioning cavity. The top surface of the conveyor is provided with four positioning posts, which are distributed in a rectangle around the positioning cavity. One flap clearance hole is located between two positioning posts, and another flap clearance hole is located between two other positioning posts. The ring headband feeding device is used to pick up the ring headband supplied by the ring headband feeding device and put the ring headband on the four positioning posts. The flap welding device is used to flap and weld the two sides of the mask body to weld the two sides of the ring headband to the two sides of the mask body.

2. The mask body flap welding ring headband device according to claim 1, characterized in that: The circular headband feeding device includes a circulating feeding mechanism located on one side of the mask body conveying mechanism and multiple feeding carriers installed on the circulating feeding mechanism. The multiple feeding carriers are distributed at equal intervals along the circulating feeding surface of the circulating feeding mechanism, and the circulating feeding mechanism is used to drive the multiple feeding carriers to move cyclically.

3. The mask body ear-flipping and welding ring headband device according to claim 2, characterized in that: The feeding carrier includes a feeding plate installed on the circulating feeding surface of the circulating feeding mechanism and two hanging plates set at both ends of the feeding plate, with an annular headband sleeved over the two hanging plates.

4. The mask body flap welding ring headband device according to claim 1, characterized in that: The annular headband feeding device includes a support frame, a movable plate movably mounted on the support frame, a translation drive mechanism mounted on the support frame and used to drive the movable plate to move horizontally, a spacing adjustment mechanism mounted on the movable plate, and two sets of feeding robots driven and connected to the spacing adjustment mechanism. The spacing adjustment mechanism is used to adjust the spacing between the two sets of feeding robots.

5. The mask body flap welding ring headband device according to claim 4, characterized in that: The loading robot includes a lifting drive mechanism installed on the spacing adjustment mechanism, a lifting plate installed on the lifting end of the lifting drive mechanism, and two gripper modules installed on the lifting plate at intervals.

6. The mask body flap welding ring headband device according to claim 1, characterized in that: The ear-flipping welding device includes a frame mounted above the mask body conveying mechanism, two welding mechanisms symmetrically and inclinedly mounted on the frame, and an upper ear-flipping mechanism located below the mask body conveying mechanism. The upper ear-flipping mechanism includes an upper drive module, an upper top plate mounted on the upper top of the upper drive module, two welding bottom molds mounted on the upper top plate, and two ear-flipping plates mounted on the upper top plate. The two welding bottom molds are located between the two ear-flipping plates. The two welding mechanisms, the two welding bottom molds, and the two ear-flipping plates are respectively arranged in a one-to-one correspondence. A welding slope is provided on the side of the welding bottom mold near the ear-flipping plate. A welding through hole is opened at the top of the ear-flipping plate, which corresponds to the welding slope. The welding end of the welding mechanism can pass through the welding through hole. A through hole is opened in the middle of the positioning cavity, through which the welding bottom mold and the ear-flipping plate can pass.

7. The mask body ear-flipping and welding ring headband device according to claim 6, characterized in that: The ear-flipping welding device also includes a pressing and abutting mechanism installed on the frame and located between the two welding mechanisms. The pressing and abutting mechanism includes a vertical rod installed on the frame, a pressing driver installed on the vertical rod, and a pressing component installed on the pressing drive end of the pressing driver. Two inclined pressure plates are symmetrically and obliquely arranged on both sides of the pressing component. The inclined pressure plates are provided with clearance grooves for the welding end of the welding mechanism to pass through. The clearance grooves are corresponding to the welding through holes.

8. The mask body flap welding ring headband device according to claim 6, characterized in that: The welding mechanism includes a mounting base inclinedly mounted on the frame, a slide block slidably connected to the mounting base, an ultrasonic welding head mounted on the slide block, a motion driver mounted on the mounting base for driving the slide block closer to or away from the conveyor, a slider slidably connected to the bottom surface of the slide block, an inclined plate mounted on the slider and located below the ultrasonic welding head, and a tension spring elastically connected to the slider and the slide block. The inclined plate can penetrate the welding through hole and abut against the welding inclined surface. Initially, the pressure surface of the inclined plate extends beyond the welding surface of the ultrasonic welding head.

9. The mask body flap welding ring headband device according to claim 1, characterized in that: There are four pressure components. Two pressure components are set at one end of the conveyor and the other two pressure components are set at the other end of the conveyor. Each flap clearance hole is located between the corresponding two pressure components.

10. A ring-shaped headband device for flipping ear loops on a mask body according to claim 9, characterized in that: The pressing component includes a rotating pressing component and a torsion spring. The conveying carrier has a rotating groove. The middle part of the rotating pressing component is rotatably connected to the inner wall of the rotating groove. The torsion spring is set in the rotating groove. One end of the torsion spring is connected to the driving end of the rotating pressing component, and the other end of the torsion spring is fixedly connected to the conveying carrier. At the beginning, the elastic force of the torsion spring causes the pressing end of the rotating pressing component to rotate onto the positioning cavity.

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