CN212331930U - Ear band feeding mechanism of mask machine - Google Patents

Abstract

The utility model provides an ear belt feeding mechanism of a mask machine. This go up ear area mechanism includes quick-witted case, quick-witted case upper end is the workstation, the workstation top surface is fixed with gauze mask piece conveyer belt and goes up ear area mechanism, it includes guider to go up ear area mechanism, transmission, welding set, trapping mechanism and trimming device, above-mentioned transmission includes the motor again, driving gear and driven gear, above-mentioned motor drives the driving gear and rotates, the driving gear is passing through the belt and being connected driven gear, be equipped with a plurality of evenly distributed's fixing base on the above-mentioned belt, all be fixed with a trapping mechanism and a welding set on every fixing base, above-mentioned trimming device is used for cutting the ear line on every trapping mechanism, make the ear line become single ear area, above-mentioned guider makes welding set's welder push down, welder makes the welding of ear area and the gauze mask piece of gauze mask piece conveyer belt transport form complete gauze mask together.

Description

Ear band feeding mechanism of mask machine

Technical Field

The utility model belongs to gauze mask machine field, specific ear area mechanism of going up of gauze mask machine that says so.

Background

The ear belt machine on present gauze mask generally includes that the ear belt mechanism is gone up to the carousel formula and presss from both sides arm type and goes up ear belt mechanism two kinds, wherein its ear wire of carousel formula is gone up ear belt mechanism and is cut off the ear wire through the rotatory fixed length of carousel by the trimming device again, weld by welding set and accomplish the ear belt at last, and the ear belt mechanism is gone up to the clamp arm type passes through the draw off mechanism and draws a line, press from both sides the line by arm lock fixed length, after rethread trimming device trimming by arm lock upset cooperation welding set welding ear belt, go up the ear belt between its each device of these two kinds of ear belt mechanisms mutually independent, and every device all controls through a plurality of cylinders, the cooperation lacks the continuity between each device, so that the latency from one process to next process is longer, cause the problem that gauze mask machine.

SUMMERY OF THE UTILITY MODEL

In view of the defect that the last ear area mechanism of current gauze mask machine exists, the utility model aims to solve the technical problem that: provides an efficient ear band feeding mechanism which is smooth in processing.

In order to achieve the above object, according to one aspect of the present invention, the present invention is realized by the following technical measures: an ear band attaching mechanism of a mask machine, comprising: machine case, machine case upper end is the workstation, and the workstation top surface is equipped with mask piece conveyer belt and goes up ear band mechanism, it includes guider, transmission, welding set, trapping mechanism and trimming device to go up ear band mechanism, transmission includes motor, driving gear and driven gear again, the motor drives the driving gear and rotates, and the driving gear is passing through the belt and being connected driven gear, be equipped with a plurality of evenly distributed's fixing base on the belt, all be fixed with a trapping mechanism and a welding set on every fixing base, trimming device is used for cutting the ear line on every trapping mechanism, makes the ear line become single ear area, guider makes welding set's welder push down, and welder makes the welding of the mask piece that ear area and mask piece conveyer belt carried form complete gauze mask together.

The belt of the upper ear belt mechanism is provided with the multiple groups of wire clamping devices and the welding devices, continuous work of wire clamping, overturning and opening can be achieved, the welding devices achieve welding through the guide devices, work is continuous and very smooth, and production efficiency is greatly improved.

Further, the transmission device also comprises a fixing frame, a driving shaft, a driven shaft and a driven gear, wherein the fixing frame comprises an upper fixing plate and a lower fixing plate, the upper fixing plate and the lower fixing plate are fixedly connected through four vertical plates, two ends of the upper fixing plate are semicircular, the lower fixing plate is fixed on a workbench above a machine box on one side of the conveying belt, one end of the lower fixing plate is provided with a driving shaft hole, one end of the driving shaft penetrates through the driving shaft hole and then is connected with a motor in the machine box, the other end of the driving shaft penetrates through the upper fixing plate and is fixed with the driving gear, the driven gear is fixed at the other end of the upper fixing plate through the driven shaft, a raised upper annular rail is arranged on the top surface of the upper fixing plate, two fixing seat pulleys are arranged below the fixing seats, the two, the lower annular rail consists of two parallel long rails and two half annular rails connecting the two ends of the two parallel long rails, the width of the left end of the two parallel long rails is larger than that of the right end, the inner side of the left end of the front parallel long rail is widened, the joint of the wide rail and the narrow rail is formed into an inclined rail I, the outer side of the left end of the parallel long rail at the rear side is widened, the joint of the wide rail and the narrow rail is formed into an inclined rail II, the width of the semicircular rail at the left end of the lower annular rail is the same as that of the left end of the two parallel long rails, the width of the semicircular rail at the right end of the lower annular rail is the same as that of the right end of the two parallel long rails, the diameter of the semicircular rail at the right end of the lower annular rail is smaller than that of the semicircular rail at the left end, and the joint of the right end of the front parallel long rail and the semicircular rail is formed into.

Further, the fixing base on the belt comprises a vertical plate and a horizontal transverse plate which is horizontally fixed in the middle of the vertical plate, the tail end of the horizontal transverse plate is provided with a fixing head which is fixed on the belt, gaps of three circular arrays are formed in the driving gear and the driven gear, and the fixing head fixed on the belt can be just clamped in the gaps when bypassing the driving gear and the driven gear.

Furthermore, four stand columns are fixed below an upper fixing plate of the transmission device and used for fixing a rotary fixing plate of the thread trimming device, the thread trimming device further comprises two triangular rotating frames, the two triangular rotating frames are oppositely arranged on the rotating frame fixing plate, a central rotating shaft of the two triangular rotating frames penetrates through the lower portion of the rotating frame fixing plate and then is meshed with each other through gears and drives synchronous rotation through a motor, a cutter is arranged at three corners of one of the two triangular rotating frames, and a stop block is arranged at three corners of the other triangular rotating frame.

Furthermore, the thread trimming device also comprises a thread pulling rod which is arranged on one side of the fixed plate of the rotating frame, and the ear thread on the ear thread barrel of the mask machine is clamped by the thread clamping device after passing through the thread pulling rod device.

Furthermore, transmission's an upper fixed plate is fixed with guider's guide plate frame through four stands, and guide plate frame one side still is equipped with the deflector of perpendicular setting, the horizontal both ends tilt up in deflector lower extreme middle part sets up.

Further, the thread clamping device comprises a clamping arm, a pin shaft, a tension spring, a pressure spring, a slide block pulley and a slide block seat, wherein the slide block seat consists of a right-angle folded plate with an L-shaped section and an I-shaped frame body, one end of the right-angle folded plate without a folded edge is fixedly connected with a lower cross rod of the I-shaped frame body, an upper cross rod of the I-shaped frame body is fixedly connected with the upper end of a vertical plate of the right-angle folded plate through two parallel slide rods, the slide block comprises an upper slide block and a lower slide block, slide block arms extend towards the side of the I-shaped frame body from the lower ends of the upper slide block and the lower slide block, a rack is arranged on the outer sides of the slide block arms, the upper slide block is overlapped above the lower slide block, the upper slide block and the lower slide block are inserted into cavities formed in two sides of a middle vertical rod of the I-shaped frame body respectively, the pressure spring is sleeved on the parallel, and a group of clamping arms are respectively arranged in two cavities of the I-shaped frame body outside the two sliding block arms, each group of clamping arms consists of an upper clamping arm and a lower clamping arm, one end of each of the upper clamping arm and the lower clamping arm is an L-shaped arm, the other end of each of the upper clamping arm and the lower clamping arm is a gear, a central hole is formed in the center of the gear, the central holes of the gears of the upper clamping arm and the lower clamping arm are connected to the upper cross rod and the lower cross rod of the I.

Further, the welding device comprises a fixing seat, a welding gun seat, a welding gun slide rod, a welding gun pressure spring and a welding gun slide rod seat, wherein the fixing seat is provided with two parallel vertical grooves, the welding gun slide rod seat of the vertical fixing seat is arranged below the two vertical grooves, the welding gun is arranged below the two welding gun seats, the back surfaces of the two welding gun seats are arranged in the two grooves through clamping blocks, slide rod holes are formed in the lower ends of the two welding gun seats, the two welding gun seats are fixed on the welding gun slide rod seat through the welding gun slide rod and can enable the welding gun seat to slide up and down along the welding gun slide rod, the welding gun pressure spring is arranged outside the welding gun slide rod between the welding gun seat and the welding gun.

Furthermore, the two ear belt feeding mechanisms are respectively arranged on the workbench at two sides of the mask sheet conveying belt.

Compared with the prior art, the utility model has the advantages of: compare current gauze mask machine and go up ear area mechanism and improve work efficiency greatly.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 is a schematic structural view of an ear band applying mechanism of a mask machine according to the present invention.

Fig. 2 is a schematic structural view of the ear band attaching mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the transmission device of the present invention.

Fig. 4 is a schematic view of the bottom structure of the upper fixing plate according to the present invention.

Fig. 5 is a schematic structural view of the guiding device of the present invention.

Fig. 6 is a schematic structural view of the wire clamping device of the present invention.

Fig. 7 is a schematic structural view of the welding device of the present invention.

Fig. 8 is a schematic structural view of the thread trimming device of the present invention.

Description of reference numerals: 1. a chassis; 2. a work table; 3. a mask sheet conveyer belt; 4. an ear band mounting mechanism; 5. a transmission device; 6. a guide device; 7. a wire clamping device; 8. a welding device; 9. a thread trimming device; 10. a wire pulling rod; 11. a fixed mount; 12. an upper fixing plate; 13. a lower fixing plate; 14. a driving shaft hole; 15. a drive shaft; 16. a driving gear; 17. a driven gear; 18. a belt; 19. a fixed seat; 20. a notch; 21. a fixed head; 22. an upper annular rail; 23. a semicircular circular track; 24. a back parallel long rail; 25. a front parallel long rail; 26. a fixed seat pulley; 27. an inclined rail I; 28. a ramp II; 29. a ramp III; 30. a guide plate frame; 31. a guide plate; 32. a slider seat; 33. a right angle folded plate; 34. a H-shaped frame; 35. parallel slide bars; 36. a cavity; 37. a slider pulley; 38. a lower slide block; 39. an upper slide block; 40. a pressure spring; 41. a slider arm; 42. a rack; 43. a pin shaft; 44. an upper clamping arm; 45. a lower clamping arm; 46. a fixed seat; 47. a welding gun seat; 48. a welding gun pulley; 49. a welding gun; 50. a welding gun pressure spring; 51. a welding gun slide bar; 52. a welding gun slide bar seat; 53. a rotating frame fixing plate; 54. a triangular rotating frame; 55. a stop block; 56. a cutter; 57. a tension spring.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1, the ear band applying mechanism of the mask machine according to the present embodiment includes a case 1, a mask sheet conveyer belt 3 is fixed in the middle of a workbench 2 above the case 1, and an ear band applying mechanism 4 is fixed on each of the workbench 2 at two sides of the mask sheet conveyer belt 3.

Referring to fig. 2, the upper ear belt mechanism 4 includes a guiding device 6, a transmission device 5, a welding device 8, a thread clamping device 7 and a thread cutting device 9.

Referring to fig. 3 and 4, the transmission device 5 includes a fixing frame 11, a driving shaft 15, a driving gear 16, a driven gear 17, fixing seats 19 and a belt 18, the fixing frame 11 includes an upper fixing plate 12 and a lower fixing plate 13, the upper and lower fixing plates are connected and fixed by four vertical plates, the left and right ends of the upper fixing plate 12 are processed into semi-circles, the lower fixing plate 13 is fixed on the worktable 2 above the chassis 1 on one side of the mask sheet conveyor belt 3, the left end of the lower fixing plate 13 is provided with a driving shaft hole 14, the lower end of the driving shaft 15 passes through the driving shaft hole 14 and then is fixed on the motor in the chassis, the upper end of the driving shaft 15 passes through the upper fixing plate 12 of the fixing frame 11 and is connected with the driving gear 16, the driven gear 17 is fixed at the right end of the upper fixing plate 12 by a driven shaft, the driving gear 16 and the driven, the fixed seat 19 is composed of a horizontal transverse plate and a vertical plate, the end of the horizontal transverse plate is fixed with a fixed head 21 fixed on the belt, the driving gear 16 and the driven gear 17 are both opened with three circular array gaps 20, so that the fixed head 21 fixed on the belt 18 can be just blocked in the gap 20 when bypassing the driving gear 16 and the driven gear 17, the upper end of the upper fixed plate 12 extends upwards to form an upper annular rail 22, two fixed seat pulleys 26 are fixed under the fixed seat transverse plate, the two fixed seat pulleys 26 are respectively blocked at two sides of the upper annular rail 22, the bottom surface of the upper fixed plate 12 extends downwards to form a lower annular rail, the lower annular rail is composed of two parallel long rails and two semicircular rails 23 connecting two ends of the two parallel long rails, the width of the left ends of the two parallel long rails is larger than that of the right ends, and the inner side of the left end of the front parallel long rail 25 is widened, so that the joint of the wide rail and the narrow rail forms an inclined, meanwhile, the outer side of the left end of the rear parallel long rail 24 is widened, so that a connection part of a wide rail and a narrow rail forms an inclined rail II 28, the width of the semicircular ring rail 23 at the left end of the lower annular rail is the same as the width of the left ends of the two parallel long rails, the width of the semicircular ring rail 23 at the right end of the lower annular rail is the same as the width of the right ends of the two parallel long rails, the diameter of the semicircular ring rail 23 at the right end is smaller than that of the semicircular ring rail 23 at the left end, and a connection part of the right end of the front parallel long rail 25 and the semicircular ring rail 23 at the right end forms an inclined rail III 29 which is inclined downwards.

Referring to fig. 5, the guiding device 6 includes a guiding plate 30 and a guiding plate frame 31, the guiding plate frame 31 is fixed above the upper fixing plate 12 of the transmission device 5 by a square horizontal plate through four upright posts, the guiding plate 30 is vertically disposed at one side of the square horizontal plate, and two horizontal ends of the middle of the lower end of the guiding plate 30 are inclined upward.

Referring to fig. 6, the wire clamping device 7 includes a clamping arm, a pin 43, a tension spring 57, a compression spring 40, a slider pulley 37 and a slider holder 32, the slider holder 32 includes a right-angle folded plate 33 with an L-shaped section and a i-shaped frame 34, one end of the right-angle folded plate 33 without a folded edge, i.e. the right end, is connected and fixed with the lower cross bar of the i-shaped frame 34, the upper cross bar of the i-shaped frame 34 and the upper end of the vertical plate of the right-angle folded plate 33 are connected and fixed through two parallel slide bars 35, the slider includes an upper slider 39 and a lower slider 38, the lower ends of the upper slider 39 and the lower slider 38 both extend toward the i-shaped frame 34 and have a slider arm 41, a rack 42 is arranged outside the slider arm 41, the upper slider 39 is stacked above the lower slider 38, the upper slider and the lower slider are both inserted through the two parallel slide bars 35, the parallel slide bars 35 at both ends of the upper slider 39 are both sleeved, the two slider arms 41 of the upper slider 39 and the lower slider 38 are respectively inserted into the cavities 36 on two sides of the middle vertical rod of the I-shaped frame body 36, a set of clamping arms are respectively arranged in the two cavities 36 of the I-shaped frame 34 on the outer sides of the two slider arms 41, each set of clamping arms consists of an upper clamping arm 44 and a lower clamping arm 45, one end of each of the upper clamping arm and the lower clamping arm is an L-shaped arm, the other end of each of the upper clamping arm and the lower clamping arm is a gear, a central hole is formed in the center of the gear, the gear central holes of the upper clamping arm and the gear central hole of the lower clamping arm are.

Referring to fig. 7, the welding device 8 includes a fixing base 46, a welding gun 49, a welding gun seat 47, a welding gun slide rod 51, a welding gun pressure spring 50 and a welding gun slide rod seat 52, wherein two vertical grooves are formed in a vertical plate of the fixing base 46, the welding gun slide rod seat 52 which is vertical to the vertical plate of the fixing base 46 is arranged below the two vertical grooves, the welding gun 49 is arranged below the two welding gun seats 47, the back surfaces of the two welding gun seats 47 are arranged in the two vertical grooves through clamping blocks, slide rod holes are formed in the lower ends of the two welding gun seats 47 and fixed on the welding gun slide rod seat 52 through the welding gun slide rod 51, the welding gun seat 47 can slide up and down along the welding gun slide rod 51, the welding gun pressure spring 50 is arranged outside the welding gun slide rod 51 between the welding gun seat 47 and the welding gun slide.

Referring to fig. 8, the thread trimming device 9 includes two triangular rotating frames 54, a rotating frame fixing plate 53 and a thread drawing rod 10, the upper portion of the rotating fixing plate 53 is fixed below the upper fixing plate 12 of the transmission device 5 through four vertical posts, the inner side of the rotating frame fixing plate 53 is fixed with the thread drawing rod 10, the two triangular rotating frames 54 are oppositely arranged on the rotating frame fixing plate 53, and central rotating shafts of the two triangular rotating frames 54 penetrate through the lower portion of the rotating frame fixing plate 53 and are engaged with each other through gears and are driven by a motor to synchronously rotate, three corners of the right triangular rotating frame 54 of the two triangular rotating frames 54 are provided with cutting knives 56, and three corners of the left triangular rotating frame 54 are provided with abutting blocks 55.

In the process of bringing the ear straps to the mask, the ear strap wire is pulled out from the wire pulling rod 10, clamped by the lower clamping arms 45 of the upper clamping arms 44 of the wire clamping device 7 in a matching manner, moved from left to right along the upper fixing plate 12 of the transmission device 5 by the belt 18 of the transmission device 5, rotated by the two three-angle rotating frames 54 of the wire cutting device 9 to enable the cutter 56 of the three-angle rotating frame 54 to cross each group of wire clamping device 7 and cut off the ear straps between the two adjacent groups of wire clamping devices 7 to form the ear straps with fixed length, when the wire cutting device 9 clamping the ear straps passes through the inclined rail III 29 at the right end of the upper fixing plate 12 of the transmission device 5, the slider pulleys 37 of the upper and lower sliders of the wire clamping device 7 simultaneously slide along the inclined rails III 29, so as to push the upper and lower sliders to slide along the cavities 36 of the I-shaped frames 34, and the racks 42 of the upper and lower sliders simultaneously push the upper and lower sliders, The gear of the lower clamping arm rotates to make the upper and lower clamping arms turn ninety degrees, so that the end of the ear belt faces outwards, when the thread clamping device 7 moves to one side of the mask piece conveying belt 3, the welding gun pulley 48 at the upper end of the welding gun seat 47 of the welding device 8 above the thread clamping device 7 touches the inclined edge at one end of the guide plate 31 of the guide device 6 and presses the welding gun 49 downwards along the inclined edge of the guide plate 31, after the welding gun seat 47 moves to the middle of the guide plate 31, the welding gun 49 abuts against the end of the ear belt and the mask piece to weld the ear belt, after the welding of the ear belt is completed, the welding gun pulley 48 on the welding gun seat 47 slides along the inclined edge at the other end of the guide plate 31, under the action of the welding gun pressure spring 50, the welding gun 49 is lifted upwards, when the thread clamping device 7 moves from right to left along the rear parallel long rail 24 of the fixing plate 12 on the transmission device 5 along with the fixing seat 19, the lower sliding block, and slides along the inclined rail II 28 to the wide rail, in the process, the lower slide block 38 is pushed, the upper slide block 39 is not moved, and after the lower slide block 38 slides, the rack 42 of the lower slider 38 pushes the lower clamping arm 45 to rotate in a gear way, so that the lower clamping arm 45 is separated from the upper clamping arm 44, the clamping arms are in an open state, then the thread clamping device 7 moves to the front parallel long rail 25 along with the fixed seat 19 around the semicircular ring rail 23 at the left end of the upper fixed plate 12, after the two groups of opened clamping arms of the thread clamping device 7 pass through the ear line of the thread pulling rod 10, the upper slider 39 of the thread tension device 7 meets the inclined rail i 27 at the left end of the front parallel long rail 25, slides along the inclined rail i 27 from the wide rail to the narrow rail, in the process, the lower slide block 38 does not slide, the upper slide block 39 is pushed, and the rack of the upper slide block 39 pushes the upper clamping arm 44 to rotate through the gear after sliding, thereby the upper clamping arm 44 is turned over and tightly pressed against the lower clamping arm 45 to clamp the ear line, and a new cycle of cycle work is started.

The utility model provides a pair of it is equipped with multiunit trapping mechanism and welding set on transmission's belt of last ear band mechanism of gauze mask machine, trapping mechanism passes through the lower annular rail of transmission top fixed plate and realizes trapping mechanism, the continuous operation of upset and opening, and welding set realizes the welding through guider's deflector, its work is continuous good, compare and lack the associativity between its each device of current gauze mask machine last ear band mechanism, compare current gauze mask machine last ear band mechanism and improve work efficiency greatly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various changes and modifications may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An ear band attaching mechanism of a mask machine, comprising: the quick-witted case, quick-witted case upper end is the workstation, and the workstation top surface is equipped with mask piece conveyer belt and last ear area mechanism, its characterized in that, it includes guider, transmission, welding set, trapping mechanism and trimming device to go up ear area mechanism, transmission includes motor, driving gear and driven gear again, the motor drives the driving gear and rotates, and the driving gear is passing through the belt and being connected driven gear, be equipped with a plurality of evenly distributed's fixing base on the belt, all be fixed with a trapping mechanism and a welding set on every fixing base, trimming device is used for cutting the ear line on every trapping mechanism, makes the ear line become single ear area, guider makes welding set's welder push down, and welder makes the ear area form complete mask together with the welding of the mask piece that mask piece conveyer belt carried.

2. The upper ear strap mechanism of mask machine according to claim 1, wherein the transmission device further comprises a fixing frame, a driving shaft, a driven shaft and a driven gear, the fixing frame comprises an upper fixing plate and a lower fixing plate, the upper fixing plate and the lower fixing plate are connected and fixed through four vertical plates, two ends of the upper fixing plate are semicircular, the lower fixing plate is fixed on the workbench above the machine box on one side of the conveying belt, one end of the lower fixing plate is provided with a driving shaft hole, one end of the driving shaft passes through the driving shaft hole and then is connected with the motor in the machine box, the other end of the driving shaft passes through the upper fixing plate and is fixed with the driving gear, the driven gear is fixed at the other end of the upper fixing plate through the driven shaft, the top surface of the upper fixing plate is provided with a protruding upper annular rail, two fixing seat, the bottom surface of the upper fixing plate is provided with a lower annular rail which protrudes downwards, the lower annular rail consists of two parallel long rails and two half annular rails which are connected with the two ends of the two parallel long rails, the width of the left end of the two parallel long rails is larger than that of the right end of the two parallel long rails, the inner side of the left end of the front parallel long rail is widened, the joint of the wide rail and the narrow rail forms an inclined rail I, the outer side of the left end of the parallel long rail which is positioned at the rear side is widened, the joint of the wide rail and the narrow rail forms an inclined rail II, the width of the semicircular rail at the left end of the lower annular rail is the same as that of the left ends of the two parallel long rails, the width of the semicircular rail at the right end of the lower annular rail is the same as that of the two parallel long rails, the diameter of the semicircular rail at the right end is smaller than that of the semicircular rail at the left end, and the joint of the semicircular rail at the right end of the front parallel long.

3. The upper ear strap mechanism of the mask machine according to claim 1 or 2, wherein the fixing seat on the belt is composed of a vertical plate and a horizontal transverse plate horizontally fixed in the middle of the vertical plate, and the end of the horizontal transverse plate is provided with a fixing head fixed on the belt, and the driving gear and the driven gear are provided with three circular array notches, so that the fixing head fixed on the belt can be just clamped in the notches when bypassing the driving gear and the driven gear.

4. The ear strap mechanism of mask machine according to claim 2, wherein four columns are fixed under the upper fixing plate of the transmission device, the four columns are used for fixing the rotation fixing plate of the thread trimming device, the thread trimming device further comprises two triangular rotation frames, the two triangular rotation frames are oppositely arranged on the rotation frame fixing plate, the central rotation shafts of the two triangular rotation frames penetrate under the rotation frame fixing plate and are meshed with each other through gears, and are driven by a motor to rotate synchronously, the three corners of one of the two triangular rotation frames are provided with cutting knives, and the three corners of the other triangular rotation frame are provided with stop blocks.

5. The ear strap attaching mechanism for mask machine according to claim 4, wherein the thread trimming means further comprises a thread pulling rod provided on one side of the fixing plate of the rotation frame, and the ear thread on the ear thread barrel of the mask machine is clamped by the thread clamping means after passing through the thread pulling rod means.

6. The ear strap mechanism of mask machine according to claim 2, wherein the upper fixing plate of the transmission device is fixed with a guide plate frame of the guide device through four upright posts, a vertically arranged guide plate is further arranged on one side of the guide plate frame, and the horizontal two ends of the middle part of the lower end of the guide plate are inclined upwards.

7. The upper ear strap mechanism of the mask machine according to claim 1, wherein the wire clamping device comprises a clamping arm, a pin shaft, a tension spring, a compression spring, a slider pulley and a slider seat, the slider seat comprises a right-angle folded plate with an L-shaped section and an I-shaped frame body, one end of the right-angle folded plate without a folded edge is fixedly connected with a lower cross bar of the I-shaped frame body, an upper cross bar of the I-shaped frame body is fixedly connected with the upper end of a vertical plate of the right-angle folded plate through two parallel slide bars, the slider comprises an upper slider and a lower slider, the lower ends of the upper slider and the lower slider extend towards the I-shaped frame body, a rack is arranged outside the slider arm, the upper slider is overlapped above the lower slider, the upper slider and the lower slider are inserted on the two parallel slide bars, the compression springs are sleeved on the parallel slide bars at the two ends of the upper slider, the upper slider is connected with the, the utility model discloses a well structure, including the I-shaped support body, including upper sliding block, lower sliding block, upper sliding block, lower sliding.

8. The ear strap mechanism of mask machine according to claim 1, wherein the welding device comprises a fixed base, a welding gun seat, a welding gun slide bar, a welding gun pressure spring and a welding gun slide bar seat, the fixed base is provided with two parallel vertical grooves, the welding gun slide bar seat of the vertical fixed base is arranged below the two vertical grooves, the welding gun is arranged below the two welding gun seats, the back surfaces of the two welding gun seats are arranged in the two grooves through clamping blocks, the lower ends of the two welding gun seats are provided with slide bar holes and fixed on the welding gun slide bar seat through the welding gun slide bar and can enable the welding gun seat to slide up and down along the welding gun slide bar, the welding gun pressure spring is arranged outside the welding gun slide bar between the welding gun seat and the welding gun slide bar seat, and the upper end of the welding gun.

9. The ear band attaching mechanism of a mask machine according to claim 1, wherein the two ear band attaching mechanisms are respectively provided on the work tables on both sides of the mask sheet conveying belt.

Images