An earstrap production device for a mask machine

Abstract

The present invention discloses an earstrap production device for a mask machine, which comprises: an earstrap conveying line bracket, an earstrap conveying line arranged on the earstrap conveying line bracket, a wire routing mechanism located on one side of the earstrap conveying line, and a shearing mechanism. A plurality of wire clamping mechanisms are arranged at intervals on one side of the earstrap conveying line, and each wire clamping mechanism comprises two wire clamping devices arranged at intervals. A plurality of wire winding posts are arranged at intervals on the other side of the earstrap conveying line; the wire routing mechanism is used for arranging the wire in a snake shape between the wire winding posts and the wire clamping mechanisms; the shearing mechanism is located on one side of the earstrap conveying line and is used for cutting the wire between the two wire clamping devices of the wire clamping mechanism so as to form an earstrap between every two adjacent wire clamping mechanisms. The present invention separates the process of producing earstraps alone, and the process of producing earstraps can be carried out simultaneously with the welding process, saving the connection time between multiple steps.

Description

Technical Field

[0001] The present invention relates to the technical field of mask earband welding, and in particular to an earband production device for a mask machine. Background Art

[0002] A mask is a hygiene protection product, usually worn over the mouth and nose to filter the air entering the mouth and nose, and to block substances such as droplets, dust, and pollen in the air. Generally, the mask is hung on the human ear by an earband so that the mask body can fit closely to the mouth and nose. Therefore, in the production process of masks, one of the steps is to bend the earband into a semi-circular shape and then weld the two ends of the earband to the mask body.

[0003] In the prior art, the earband production devices of mask machines all adopt an integrated structure, in which the wiring mechanism, the welding device, and the shearing device are all integrated in a relatively small area. The wiring mechanism includes several rotating parts and wire pressing parts. One end of the wire is wound around the outer wall of the rotating part. During each welding process, the steps are as follows: First, the rotating part rotates half a turn to pull out a section of wire; then the wire pressing part presses a certain position of the wire against the rotating part; then the welding device works to weld the pulled-out section of wire to the earcup body located below the welding part and the wire; after welding, the shearing device cuts off the excess wire, and the welding part returns to the initial position; then the rotating part continues to rotate half a turn to repeat the above working process. For such a welding device, steps such as pulling the wire, pressing the wire, welding, and cutting the wire need to be carried out in sequence, and a large amount of time is wasted in the connection between steps, and it is difficult to further improve the working efficiency. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide an earband production device for a mask machine that can automatically and efficiently weld the mask body and the earband together.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] An earband production device for a mask machine, comprising:

[0007] An earband conveyor line bracket;

[0008] An earband conveyor line, arranged on the earband conveyor line bracket. A plurality of wire clamping mechanisms moving along with it are spaced apart on one side of the earband conveyor line. Each wire clamping mechanism includes two wire clamping devices, and the two wire clamping devices are arranged at intervals so that they can clamp the wire at different positions respectively. A plurality of wire winding columns moving along with it are spaced apart on the other side of the earband conveyor line;

[0009] The wire routing mechanism is located on one side of the earband conveying line. The wire routing mechanism includes a cycloid arm and a cycloid drive that can drive the cycloid arm to reciprocate. A wire groove is provided on the cycloid arm above the earband conveying line. When the cycloid arm reciprocates, it cooperates with the movement of the earband conveying line to arrange the wire output from the wire groove in a serpentine shape between the winding column and the wire clamping mechanism;

[0010] The shearing mechanism is located on one side of the earband conveying line and is used to cut the wire between the two wire clamping devices of the wire clamping mechanism so that an earband is formed between every two adjacent wire clamping mechanisms.

[0011] Preferably, the wire clamping mechanism includes a winding base, on which two wire clamping rods are movably connected. Each wire clamping rod and the side wall on one side of the winding base form the wire clamping device. A power component is also provided on the winding base that can drive the two wire clamping rods to switch between two positions of clamping and loosening.

[0012] Preferably, the two wire clamping rods are respectively hinged to the left and right sides of the winding base. The power component includes a driving member that is movably arranged up and down on the winding base. A transmission mechanism is provided between the driving member and the wire clamping rod that can drive the wire clamping rod to rotate when the driving member moves up and down. A locking device is provided between the winding base and the driving member that can lock the driving member when the wire clamping rod is in the clamping state and the unfolded state.

[0013] Preferably, the transmission structure includes an inclined groove provided on the wire clamping rod and a first push shaft provided on the driving member. The first push shaft is inserted into the inclined groove.

[0014] Preferably, the locking device includes a first bayonet provided on the driving member, a second bayonet provided on the driving member, and a spring positioning bead provided on the base. When the wire clamping rod is in the clamping state, the spring positioning bead is snapped into the first bayonet. When the wire clamping rod is in the open state, the spring positioning bead is snapped into the second bayonet.

[0015] Preferably, a first pushing member and a second pushing member are provided on the earband conveying line bracket on the traveling route of the wire clamping mechanism. A first pushing inclined surface is provided on the first pushing member. When the wire clamping mechanism moves to the position where the first pushing member is located, the first pushing inclined surface presses the driving member to drive the wire clamping rod to clamp. A second pushing inclined surface is provided on the second pushing member. When the wire clamping mechanism moves to the position where the second pushing member is located, the second pushing inclined surface presses the driving member to drive the wire clamping rod to loosen.

[0016] Preferably, the wiring mechanism further includes a wiring frame fixed relative to the earband conveying line bracket. The cycloid arm is swingably arranged on the wiring frame. A traction device capable of pulling the wire is arranged on the wiring frame. A temporary storage device capable of temporarily storing the wire is arranged between the traction device and the cycloid arm.

[0017] Preferably, the temporary storage device includes a counterweight wheel that can be driven by its own gravity to move downward relative to the wiring frame. A wire groove capable of winding the wire is arranged on the outer side wall of the counterweight wheel.

[0018] Preferably, the shearing mechanism includes a scissor base fixed relative to the earband conveying line bracket and a first moving seat that can move up and down relative to the scissor base. A limiting device capable of defining the maximum downward movement stroke of the first moving seat is arranged between the scissor base and the first moving seat. The shearing mechanism further includes a second moving seat and a shearing driver capable of driving the second moving seat to move up and down relative to the scissor base. The first moving seat and the second moving seat are connected by a compressible elastic member so that the second moving seat can drive the first moving seat to move up and down together. A shearing knife group is arranged on the first moving seat. The second moving seat and the shearing knife group are connected by a transmission device so that when the second moving seat moves up and down relative to the first moving seat, it can drive the shearing knife group to perform a shearing action.

[0019] Preferably, the shearing knife group includes a fixed blade fixed on the first moving seat and a moving blade hinged on the first moving seat. The transmission device includes a knife groove arranged on the moving blade and a push rod connected to the second moving seat. A second push shaft is arranged at one end of the push rod. The second push shaft is inserted into the knife groove so that when the second push shaft moves up and down relative to the fixed blade, it can drive the moving blade to rotate relative to the fixed blade.

[0020] The beneficial effects of the present invention are as follows: The earband production device of the mask machine of the present invention separates the process of producing earbands alone. The process of producing earbands can be carried out simultaneously with the welding process, saving the connection time between multiple steps and being beneficial to further improving work efficiency. Description of the Drawings

[0021] Figure 1 is a perspective view of the earband production device;

[0022] Figure 2 is a perspective view of the mask machine;

[0023] Figure 3 is Figure 2 an enlarged view of part A in

[0024] Figure 4 The front view of the main part of the earband production device;

[0025] Figure 5 The front view of the wire clamping mechanism in the released state;

[0026] Figure 6 The front view of the wire clamping mechanism in the clamped state;

[0027] Figure 7 The exploded view of the wire clamping mechanism;

[0028] Figure 8 The three-dimensional view of the wire routing mechanism in the working state;

[0029] Figure 9 The three-dimensional view of the shearing mechanism;

[0030] Figure 10 The exploded view of a partial structure of the shearing mechanism;

[0031] Figure 11 The diagram of the relative position between the welding device and the mask body in the working state.

[0032] Figure 12 The wiring schematic diagram of the earband production device. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings.

[0034] Refer to Figures 1 to 12, A mask machine, comprising a workbench 1, on which a welding device 2 is provided. The workbench 1 is further provided with: a mask body conveying line 31, an earloop conveying line bracket 300, a wire routing mechanism 4, and a shearing mechanism 5. When the mask body conveying line 31 works, it conveys mask bodies 100 one by one to the working area of the welding device 2; an earloop conveying line 32 is provided on the earloop conveying line bracket 300, and on one side of the earloop conveying line 32, a plurality of wire clamping mechanisms 6 moving along with it are arranged at intervals. Each wire clamping mechanism 6 includes two wire clamping devices, and the two wire clamping devices are arranged at intervals so that they can clamp the wire 200 at different positions respectively. On the other side of the earloop conveying line 32, a plurality of wire winding posts 321 moving along with it are arranged at intervals; the wire routing mechanism 4 is located on one side of the earloop conveying line 32. The wire routing mechanism 4 includes a wire swinging arm 41 and a wire swinging driver 42 capable of driving the wire swinging arm 41 to reciprocate. A wire guiding tube located above the earloop conveying line 32 is provided on the wire swinging arm 41. The inner hole of the wire guiding tube forms a wire guiding groove 411. When the wire swinging arm 41 reciprocates, it cooperates with the movement of the earloop conveying line 32 to arrange the wire 200 output from the wire guiding groove 411 in a serpentine shape between the wire winding posts 321 and the wire clamping mechanisms 6; the shearing mechanism 5 is located on one side of the earloop conveying line 32 and is used to cut the wire 200 between the two wire clamping devices of the wire clamping mechanism 6 so that an earloop is formed between every two adjacent wire clamping mechanisms. The formed earloop is conveyed by the earloop conveying line 32 to the working area of the welding device 2.

[0035] In the above-mentioned mask machine, the earloop conveying line bracket 300, the earloop conveying line 32, the wire clamping mechanism 6, the wire winding posts 321, the wire routing mechanism 4, and the shearing mechanism 5 constitute a set of earloop production devices for producing earloops.

[0036] The mask body conveying line 31 and the earloop conveying line 32 can adopt devices such as chain conveying lines and belt conveying lines. The mask body conveying line 31 and the earloop conveying line 32 are arranged one above the other, and they rotate in opposite directions. For example, the earloop conveying line 32 is arranged above the mask body conveying line 31. The mask body conveying line 31 rotates counterclockwise, and the earloop conveying line 32 rotates clockwise. In order to position the mask body 100, a plurality of trays 311 are arranged at intervals on the mask body conveying line 31, and positioning posts 312 for positioning the mask body 100 are provided at the edges of the trays 311.

[0037] Refer to Figures 5 to 7 , The wire clamping mechanism 6 includes a wire winding base 60, on which two wire clamping rods 61 are movably connected. Each wire clamping rod 61 and the side wall on one side of the wire winding base 60 constitute a wire clamping device. A power component capable of driving the two wire clamping rods 61 to switch between two positions of clamping and loosening is further provided on the wire winding base 60.

[0038] Preferably, the two wire clamping rods 61 are respectively hinged to the left and right sides of the wire winding base 60. A notch 601 is provided on the front side wall of the wire winding base 60. The power component includes a driving member 62 movably arranged up and down on the wire winding base 60. A transmission mechanism is arranged between the driving member 62 and the wire clamping rod 61, which can drive the wire clamping rod 61 to rotate when the driving member 62 moves up and down. A locking device is arranged between the wire winding base 60 and the driving member 62, which can lock the driving member 62 when the wire clamping rod 61 is in the clamping state and the unfolding state.

[0039] In a preferred embodiment of the present invention, the transmission structure includes an inclined groove 611 provided on the wire clamping rod 61 and a first push shaft 63 provided on the driving member 62. The first push shaft 63 is inserted into the inclined groove 611. The first push shaft 63 can be a fixed shaft or a rotating shaft that can rotate relative to the driving member 62. The locking device includes a first bayonet 621 provided on the driving member 62, a second bayonet 622 provided on the driving member 62, and a spring positioning bead 64 provided on the base. When the wire clamping rod 61 is in the clamping state, the spring positioning bead 64 is snapped into the first bayonet 621, and when the wire clamping rod 61 is in the open state, the spring positioning bead 64 is snapped into the second bayonet 622.

[0040] In some embodiments of the present invention, the above-mentioned locking device can also adopt other structural forms. For example, the driving member 62 is also movable up and down, the spring positioning bead 64 is arranged on the driving member 62, and correspondingly, two bayonets are arranged on the base. The wire clamping mechanism 6 can also adopt other structural forms. For example, the driving member 62 is arranged as a gear that can rotate on the base, and the gear meshes with the wire clamping rod 61 to drive the wire clamping rod 61 to rotate during the rotation of the driving member 62; or, the driving member 62 is a movable rack, and a gear meshing with the rack is arranged at one end of the wire clamping rod 61.

[0041] Refer to Figure 4 , the structure for driving the driving member 62 to move up and down is as follows: a first pushing member 11 and a second pushing member 12 are arranged on the ear strap conveying line bracket 300 or the workbench 1 and are located on the traveling route of the wire clamping mechanism 6. A first pushing inclined surface 111 is arranged on the first pushing member 11. When the wire clamping mechanism 6 moves to the position where the first pushing member 11 is located, the first pushing inclined surface 111 presses against the driving member 62 to drive the wire clamping rod 61 to clamp. A second pushing inclined surface 121 is arranged on the second pushing member 12. When the wire clamping mechanism 6 moves to the position where the second pushing member 12 is located, the second pushing inclined surface 121 presses against the driving member 62 to drive the wire clamping rod 61 to loosen. In order to reduce the friction, a roller 65 is pivotally connected to the lower end of the driving member 62. When the roller 65 rolls along the first pushing inclined surface 111, it drives the driving member 62 to move downward, so that the wire clamping rod 61 clamps.

[0042] Refer to Figure 8, the wiring mechanism 4 further includes a wiring rack 43. The cycloid driver 42 is a motor that can rotate forward and backward. The cycloid arm 41 is swingably arranged on the wiring rack 43. A traction device capable of pulling the wire 200 is arranged on the wiring rack 43. A temporary storage device capable of temporarily storing the wire 200 is arranged between the traction device and the cycloid arm 41. In some solutions of the present invention, the cycloid arm 41 can also be arranged as a structure that can reciprocate horizontally above the earband conveying line.

[0043] Preferably, the traction device includes two traction wheels 44 and a traction motor 45 capable of driving the two traction wheels 44 to rotate in opposite directions. The outer side walls of the two traction wheels 44 are close to each other so that the wire 200 can be clamped and pulled therebetween.

[0044] Preferably, the temporary storage device includes a counterweight wheel 46 that can be driven by its own gravity to move downward relative to the wiring rack 43. A wire groove 461 capable of winding the wire 200 is arranged on the outer side wall of the counterweight wheel 46. When the two traction wheels 44 rotate together, the wire 200 is pulled out from the external wire roll 200 to the temporary storage device. During the process of pulling the wire 200, the counterweight wheel 46 gradually descends, temporarily storing the pulled wire 200. Then the cycloid arm 41 swings, outputting the temporarily stored wire 200 and winding it between the wire clamping mechanism 6 and the winding post 321 for producing earbands.

[0045] In order to prevent the counterweight wheel 46 from detaching from the wiring rack 43 and falling during operation, a circumferential limiting groove 462 is further arranged on the outer side wall of the counterweight wheel 46. Two vertical guide rods 47 are arranged on the wiring rack 43. The two guide rods 47 are respectively inserted into the limiting groove 462 from both sides of the limiting groove 462 to limit the counterweight wheel 46 from detaching from the wiring rack 43.

[0046] Refer to Figure 9 And Figure 10, the shearing mechanism 5 includes a shear base 51 fixedly arranged on the workbench 1 and a first moving seat 52 capable of moving up and down relative to the shear base 51. A limiting device for defining the maximum downward movement stroke of the first moving seat 52 is arranged between the shear base 51 and the first moving seat 52. The shearing mechanism 5 further includes a second moving seat 53 and a shearing driver 54 capable of driving the second moving seat 53 to move up and down relative to the shear base 51. The first moving seat 52 and the second moving seat 53 are connected by a compressible elastic member 55 so that the second moving seat 53 can drive the first moving seat 52 to move up and down together. A shearing blade group is arranged on the first moving seat 52. The second moving seat 53 and the shearing blade group are connected by a transmission device so that when the second moving seat 53 moves up and down relative to the first moving seat 52, the shearing blade group can be driven to perform a shearing action. The shearing driver 54 is preferably a cylinder, and the elastic member 55 is preferably a spring. The advantage of such a design is that one driver can be used. During a one-way stroke cycle, first, the shearing blade group is moved to the position where the wire 200 to be sheared is located. After moving into place, a shearing action is performed to cut the wire 200. When the wire clamping mechanism 6 clamping the wire 200 moves to the working area of the shearing mechanism 5, the shearing driver 54 drives the second moving seat 53 to move downward, driving the first moving seat 52 to move downward together. After the first moving seat 52 moves into place, it is limited by the limiting device. Then, the second moving seat 53 continues to move downward, compressing the elastic member 55. At this time, the power of the second moving seat 53 is transmitted to the shearing blade group through the transmission device, driving the shearing blade group to achieve a shearing action.

[0047] In a preferred embodiment of the present invention, a guide sleeve 511 is arranged on the shear base 51, and a guide post 521 cooperating with the above-mentioned guide sleeve 511 is arranged on the first moving seat 52. The limiting device is a convex block 522 arranged on the upper part of the guide post 521. When the first moving seat 52 moves downward, the convex block 522 abuts against the end face of the guide sleeve 511 to limit the first moving seat 52. The shearing blade group includes a fixed blade 56 fixed on the first moving seat 52 and a moving blade 57 hinged on the first moving seat 52. The transmission device includes a blade groove 571 arranged on the moving blade 57 and a push rod 58 connected to the second moving seat 53. One end of the push rod 58 is provided with a second push shaft 581, and the second push shaft 581 is inserted into the blade groove 571 so that when the second push shaft 582 moves up and down relative to the fixed blade 56, the moving blade 57 can be driven to rotate relative to the fixed blade 56.

[0048] In some embodiments of the present invention, the shearing blade group and the transmission device can also adopt the following structural forms. For example, the shearing blade group adopts two blades hinged on the first moving seat 52, and blade grooves 571 are arranged on both blades. The transmission device includes a push rod 58 arranged on the second moving seat 53, and the push rod 58 is connected with two second push shafts 581, and the two second push shafts 581 are respectively inserted into the blade grooves 571 of one blade.

[0049] In order to weld two ear straps on the mask body 100 simultaneously, the ear strap conveying lines 32, the wire routing mechanism 4, and the shearing mechanism 5 can all be set to two groups, and the two ear strap conveying lines 32 are parallel to each other.

[0050] Referring to Figure 2 、 Figure 4 and Figure 12 , the working principle of the present invention is as follows: First, the wire routing mechanism 4 arranges the wire 200 in a serpentine shape between the winding posts 321 and the wire clamping mechanism 6; then the wire clamping mechanism 6 is conveyed forward along with the ear strap conveying line 32. Under the action of the first ejecting member 11, the two wire clamping rods 61 of each wire clamping mechanism 6 clamp the wire 200; then the wire clamping mechanism 6 is conveyed to the working area of the shearing mechanism 5, and the shearing knife group of the shearing mechanism 5 extends into the notch 601 of the winding base 60 to cut off a section of the wire 200 between the two wire clamping rods 61, so that an ear strap can be formed between every two adjacent wire clamping mechanisms 6, and for the cut ear strap, both ends thereof are exposed outside the winding base 60 of the wire clamping mechanism 6; finally, this section of the ear strap is conveyed to the working area of the welding device 2 together with the corresponding wire clamping mechanism 6 and the winding post 321; the mask body conveying line 31 and the ear strap conveying line 32 run synchronously and in opposite directions, and their linear speeds are equal. When the ear strap is conveyed to the working area of the welding device 2, the corresponding mask body 100 is also conveyed to the working area of the welding device 2, and then the welding device 2 welds the free ends of the mask body 100 and the ear strap together. After welding is completed, under the action of the second ejecting seat, the two wire clamping rods 61 of the wire clamping mechanism 6 open, so that the ear strap is loosened from the wire clamping mechanism 6, and the welded ear strap and the mask body 100 can move to the next working station along with the mask body conveying line 31.

[0051] Referring to Figure 11 , the welding device 2 includes a welding frame 21 fixedly installed on the workbench 1. A welding member 22 and a welding driver 23 capable of driving the welding member 22 to move up and down are arranged on the welding frame 21. The welding driver 23 is preferably a cylinder. Two welding heads 221 are arranged at intervals at the lower end of the welding member 22, and the two welding heads 221 respectively correspond to the positions of the free ends of two ear straps clamped by the same wire clamping mechanism 6. During each downward pressing process of the welding member 22, it aligns with the free ends of the two ear straps and welds the free ends of the two ear straps to two mask bodies 100 respectively.

[0052] Compared with the prior art, the ear strap production device of the mask machine of the present invention separates the process of producing ear straps alone, and the process of producing ear straps can be carried out simultaneously with the welding process, saving the connection time between multiple steps, which is beneficial to further improving the working efficiency.

[0053] The above is only the preferred implementation mode of the present invention. As long as the technical solutions that achieve the object of the present invention by substantially the same means fall within the protection scope of the present invention.

Claims

1. An earstrap production device for a mask machine, characterized in that, It includes: An earband conveyor line bracket (300); An earband conveyor line (32) is arranged on the earband conveyor line bracket (300). A plurality of wire clamping mechanisms (6) moving along with it are arranged at intervals on one side of the earband conveyor line (32). Each wire clamping mechanism (6) includes two wire clamping devices, and the two wire clamping devices are arranged at intervals so that they can clamp the wire material (200) at different positions respectively. A plurality of wire winding posts (321) moving along with it are arranged at intervals on the other side of the earband conveyor line (32); A wire routing mechanism (4) is located on one side of the earband conveyor line (32). The wire routing mechanism (4) includes a wire swinging arm (41) and a wire swinging driver (42) capable of driving the wire swinging arm (41) to make reciprocating movements. A wire guiding groove (411) located above the earband conveyor line (32) is arranged on the wire swinging arm (41). When the wire swinging arm (41) makes reciprocating movements, it cooperates with the movement of the earband conveyor line (32) to arrange the wire material (200) output from the wire guiding groove (411) in a serpentine shape between the wire winding posts (321) and the wire clamping mechanism (6); A shearing mechanism (5) is located on one side of the earband conveyor line (32) and is used to cut the wire material (200) between the two wire clamping devices of the wire clamping mechanism (6) so that an earband is formed between every two adjacent wire clamping mechanisms; The wire clamping mechanism (6) includes a wire winding seat (60). Two wire clamping rods (61) are movably connected to the wire winding seat (60). Each wire clamping rod (61) and the side wall on one side of the wire winding seat (60) constitute the wire clamping device. A power component capable of driving the two wire clamping rods (61) to switch between the clamping and loosening positions is also arranged on the wire winding seat (60); The power component includes a driving member (62) movably arranged up and down on the wire winding seat (60); A first pushing member (11) and a second pushing member (12) are arranged on the earband conveyor line bracket (300) on the traveling route of the wire clamping mechanism (6). A first pushing inclined surface (111) is arranged on the first pushing member (11). When the wire clamping mechanism (6) moves to the position where the first pushing member (11) is located, the first pushing inclined surface (111) presses against the driving member (62) to drive the wire clamping rods (61) to clamp. A second pushing inclined surface (121) is arranged on the second pushing member (12). When the wire clamping mechanism (6) moves to the position where the second pushing member (12) is located, the second pushing inclined surface (121) presses against the driving member (62) to drive the wire clamping rods (61) to loosen; The wire routing mechanism (4) further includes a wire routing frame (43) fixed relative to the earband conveyor line bracket (300). The wire swinging arm (41) is swingably arranged on the wire routing frame (43). A traction device capable of pulling the wire material (200) is arranged on the wire routing frame (43). A temporary storage device capable of temporarily storing the wire material (200) is arranged between the traction device and the wire swinging arm (41); The described temporary storage device includes a counterweight wheel (46) that can be driven by its own gravity to move downward relative to the wiring rack (43), and a wire groove (461) capable of winding the wire (200) is provided on the outer side wall of the counterweight wheel (46).

2. The ear strap production device of a mask machine according to claim 1, wherein, Two wire clamping rods (61) are respectively hinged to the left and right sides of the winding base (60). A transmission mechanism capable of driving the wire clamping rods (61) to rotate when the driving member (62) moves up and down is provided between the driving member (62) and the wire clamping rods (61). A locking device capable of locking the driving member (62) when the wire clamping rods (61) are in the clamping state and the unfolded state is provided between the winding base (60) and the driving member (62).

3. The earband production device of a mask machine according to claim 2, characterized in that, The described transmission mechanism includes an inclined groove (611) provided on the wire clamping rod (61) and a first push shaft (63) provided on the driving member (62), and the first push shaft (63) is inserted into the inclined groove (611).

4. The earband production device of a mask machine according to claim 2, characterized in that, The described locking device includes a first bayonet (621) provided on the driving member (62), a second bayonet (622) provided on the driving member (62), and a spring positioning bead (64) provided on the winding base (60). When the wire clamping rod (61) is in the clamping state, the spring positioning bead (64) is snapped into the first bayonet (621), and when the wire clamping rod (61) is in the unfolded state, the spring positioning bead (64) is snapped into the second bayonet (622).

5. The earstrap production device of a mask machine according to claim 1, characterized in that, The described shearing mechanism (5) includes a scissors seat (51) fixed relative to the earband conveying line bracket (300) and a first moving seat (52) capable of moving up and down relative to the scissors seat (51). A limiting device capable of defining the maximum downward movement stroke of the first moving seat (52) is provided between the scissors seat (51) and the first moving seat (52). The shearing mechanism (5) further includes a second moving seat (53) and a shearing driver (54) capable of driving the second moving seat (53) to move up and down relative to the scissors seat (51). The first moving seat (52) and the second moving seat (53) are connected by a compressible elastic member (55) so that the second moving seat (53) can drive the first moving seat (52) to move up and down together. A shearing knife group is provided on the first moving seat (52), and the second moving seat (53) and the shearing knife group are connected by a transmission device so that when the second moving seat (53) moves up and down relative to the first moving seat (52), it can drive the shearing knife group to perform a shearing action.

6. The ear strap production device of a mask machine according to claim 5, characterized in that, The described shearing blade group includes a fixed blade (56) fixed on the first moving seat (52), and a moving blade (57) hinged on the first moving seat (52). The transmission device includes a blade groove (571) provided on the moving blade (57), and a push rod (58) connected to the second moving seat (53). One end of the push rod (58) is provided with a second push shaft (581), and the second push shaft (581) is inserted into the blade groove (571) so that when the second push shaft (581) moves up and down relative to the fixed blade (56), it can drive the moving blade (57) to rotate relative to the fixed blade (56).

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