Mask production line

Abstract

The utility model provides a mask production line which comprises a mask slicing machine, a mask ear strap welding device, a mask strap folding device, a mask folding device, a conveying platform and mask packaging equipment, the mask slicing machine is arranged on the front side of the conveying platform, and the mask ear strap welding device and the mask strap folding device are arranged on the conveying platform; the mask ear band welding device is located on the front side of the mask band folding device, the mask folding device is arranged on the rear side of the conveying platform, and the mask packaging equipment is arranged on the rear side of the mask folding device. According to the mask production line provided by the embodiment of the invention, comprehensive automation of mask welding, ear strap folding, mask folding and mask packaging can be achieved. The operation of manual cutting, ear band placing and the like in the welding process is omitted, the welding efficiency of the ear bands of the mask can be improved, the folding effect is good, the problem that the mask is polluted due to manual touch can be avoided, and the welding process of the mask is safer.

Description

Technical Field

[0001] This application relates to the technical field of medical device production equipment, and particularly to a mask production line. Background Art

[0002] Masks are medical supplies that are frequently used in people's daily lives and often need to be carried around. To ensure the portability and usability of such medical supplies, they are often packaged in a single-piece independent packaging method, which also ensures that such medical supplies are cleaner and more hygienic during storage, transportation, and carrying. On the other hand, the widespread use of independent packaging generates a large amount of waste packaging materials, and the large generation of these waste packaging materials leads to resource waste and environmental damage.

[0003] To reduce the generation of waste packaging materials, taking advantage of the characteristics of dressings such as wound dressings and antipyretic patches, as well as masks, which are in the form of sheets, after folding them to reduce their volume and then performing independent packaging, can reduce the amount of packaging materials used, and also improve the portability after reducing the volume. For example, the Chinese invention patent with the authorization announcement number CN114084513B discloses an environmentally friendly, hygienic, and portable mask. By folding the mask and then packaging it, the size of the packaging bag is reduced, the amount of packaging materials used is reduced, the impact on the environment caused by packaging waste is reduced, and the portability is improved.

[0004] However, most of the related production equipment on the market currently does not have the function of folding masks, and the automation level is not high. If folded manually, there are problems such as consuming a lot of labor, low efficiency, uneven quality, and being easily contaminated. Summary of the Utility Model

[0005] The embodiment of this application provides a mask production line, including a mask punching machine, a mask ear strap welding device, a mask belt folding device, a mask folding device, a conveying platform, and a mask packaging device. The mask punching machine is arranged on the front side of the conveying platform, the mask ear strap welding device and the mask belt folding device are arranged on the conveying platform, and the mask ear strap welding device is located in front of the mask belt folding device. The mask folding device is arranged on the rear side of the conveying platform, and the mask packaging device is arranged on the rear side of the mask folding device;

[0006] The conveying platform includes a bottom plate and a conveying mechanism arranged on the bottom plate;

[0007] The mask ear strap welding device includes a strap pulling part, a cutting part, a clamping part, and a welding part;

[0008] The drawstring part includes a sliding mechanism, a fixed gripper, and a movable gripper. The sliding mechanism is arranged on the bottom plate. The movable gripper is connected to the sliding mechanism, and the fixed gripper is fixed on one side of the movable mechanism. The sliding mechanism can drive the sliding gripper to approach or move away from the fixed gripper. Both the fixed gripper and the movable gripper can perform the actions of grasping and releasing the earloop.

[0009] The cutting part includes scissors. The scissors are arranged between the fixed gripper and the movable gripper, and the scissors are close to the fixed gripper.

[0010] The earloop clamping part includes a lifting bracket, a steering mechanism, and a clamping forceps. The steering mechanism is connected to the lifting bracket, and the clamping forceps are arranged and connected to the lower end of the steering mechanism. The clamping forceps are located between the fixed gripper and the movable gripper. The lifting bracket can drive the steering mechanism to move up and down, the steering mechanism can drive the clamping forceps to rotate, and the clamping forceps can perform the actions of clamping and releasing the earloop.

[0011] The welding part includes an upright frame, a lifting mechanism, and a welding head. The lifting mechanism is connected to the upright frame, and the welding head is connected to the bottom end of the lifting mechanism. The welding head is located above the conveying mechanism, and the lifting mechanism can drive the welding head to move in the vertical direction.

[0012] The mask earloop folding device includes an earloop folding part and a bottom pushing part.

[0013] The earloop folding part includes a portal frame and a horizontal earloop pushing mechanism.

[0014] The portal frame is connected to the upper end of the bottom plate. Each of the opposite sides of the portal frame is provided with one of the horizontal earloop pushing mechanisms. The two horizontal earloop pushing mechanisms on the portal frame are symmetrically arranged and distributed on the opposite sides of the conveying mechanism.

[0015] The horizontal earloop pushing mechanism includes a horizontal push plate, a horizontal earloop pushing slide rail, a horizontal earloop pushing slider, and a horizontal earloop pushing motor. The horizontal earloop pushing slide rail is fixedly connected to the side of the portal. The horizontal earloop pushing slider slides on the horizontal earloop pushing slide rail. The horizontal push plate is connected to the slider. The head end of the horizontal push plate faces inside the portal frame. The horizontal earloop pushing motor is installed on the portal frame, and the horizontal earloop pushing motor can drive the horizontal earloop pushing slider to slide on the horizontal earloop pushing slide rail.

[0016] The bottom pushing part includes a bottom pushing head. The top end of the bottom pushing head is a plane. The top end of the bottom pushing head is located below the horizontal push plate. Each of the two horizontal push plates is provided with one of the bottom pushing heads below it.

[0017] The mask folding device includes a material staying part and a material pressing part, and the material pressing part is located above the material staying part;

[0018] The material staying part includes two guiding plates, and the two guiding plates are inclined with respect to each other. The upper surface of the guiding plate has a guiding inclined surface, and the guiding inclined surfaces of the two guiding plates are distributed in a V shape;

[0019] A guiding vertical surface is provided at the lowest position of the guiding inclined surface on the guiding plate, and a folding opening is formed between the guiding vertical surfaces of the two guiding plates; a horizontal placing surface is provided at the highest position of the guiding inclined surface on the guiding plate;

[0020] The material pressing part includes a pressing transmission mechanism and a vertically arranged pressing top plate. The lower end of the pressing top plate faces the folding opening, the upper end of the pressing top is connected to the pressing transmission mechanism, and the pressing transmission mechanism can drive the pressing top plate to insert downward into the folding opening or drive the pressing top plate to withdraw upward from the folding opening.

[0021] In one possible implementation manner, for the mask production line provided in the embodiments of the present application, the mask packaging device includes a machine frame and a unwinding part and a heat sealing part provided on the machine frame;

[0022] The unwinding part includes two unwinding rollers for supporting packaging materials. The packaging materials supported on the two unwinding rollers are a laminated paper and a medical dialysis paper respectively; after the feeding ends of the unwinding rollers, there are multiple intermediate rollers for guiding the movement direction of the packaging materials and multiple tension wheels for applying tension to the packaging materials; the movement routes of the packaging materials on the two unwinding rollers include a parallel section where they move parallel to each other, and the packaging materials on the two unwinding rollers form an inlet of the mask at the starting point of the parallel section;

[0023] The heat sealing part includes a pressing device and a top pressing device, and the pressing device and the top pressing device are connected by a side support plate;

[0024] The pressing device includes a heating plate and a pressing power mechanism for driving the heating plate to move downward. The pressing power mechanism is connected to the side support plate, and the heating plate is connected to the bottom end of the pressing power mechanism;

[0025] The top pressing device includes a top plate and a top pressing power mechanism for driving the top plate to move upward. The top pressing power mechanism is connected to the side support plate, the top plate is connected to the top end of the top pressing power mechanism, the top plate is located directly below the heating plate, and the heating plate and the top plate are respectively located on opposite sides of the parallel section.

[0026] In one possible implementation, for the mask production line provided by the embodiments of the present application, the earband folding part further includes a vertical belt pressing mechanism, which is arranged on the gantry frame, and the vertical belt pressing mechanism is located above the horizontal belt pushing mechanism;

[0027] The vertical belt pressing mechanism includes an indentation assembly and a vertical belt pressing downward assembly. Two of the indentation assemblies are arranged on the vertical belt pressing downward assembly, and the two indentation assemblies are respectively located above the two bottom pushing heads; the bottom end of the indentation assembly has two indentation pressing heads, and the indentation pressing heads face the top surface of the bottom pushing head.

[0028] In one possible implementation, for the mask production line provided by the embodiments of the present application, the vertical belt pressing downward assembly includes a vertical belt supporting plate, a vertical belt sliding block, a vertical belt sliding rail, and a vertical belt cylinder;

[0029] One vertical belt sliding rail is arranged on each of the opposite sides of the gantry frame, a vertical belt sliding block is slidably arranged on the vertical belt sliding rail, and the vertical belt supporting plate is connected to the vertical belt sliding block; the indentation assembly is connected to the bottom end of the vertical belt supporting plate;

[0030] The vertical belt cylinder is fixed on the gantry frame, and the vertical belt supporting plate is connected to the piston rod of the vertical belt cylinder.

[0031] In one possible implementation, for the mask production line provided by the embodiments of the present application, two guiding inclined plates are arranged on the gantry frame, and the two guiding inclined plates are symmetrically distributed on the opposite sides of the conveying mechanism;

[0032] The guiding inclined plate includes a guiding inclined surface, the guiding inclined surface inclines downward until a part of the guiding inclined surface is located below the material placing surface of the conveying mechanism, and another part of the guiding inclined surface is located above the material placing surface of the conveying mechanism;

[0033] The middle part of the guiding inclined surface has a guiding plane, the guiding plane is located at the edge of the guiding inclined plate close to the conveying mechanism, and the guiding plane is located above the material placing surface of the conveying mechanism; the guiding plane is flush with the top surface of the bottom pushing head or located above the top surface of the bottom pushing head.

[0034] In one possible implementation, for the mask production line provided by the embodiments of the present application, the mask folding device further includes a material input conveying part, and the discharging end of the material input conveying part faces above the material staying part;

[0035] The material input conveyor part includes two input part side plates arranged at intervals. Two groups of conveyor belt mechanisms are provided on the input part side plates. The conveyor belt mechanism includes a plurality of conveyor belt wheels arranged on the input part side plates, and an input conveyor belt sleeved on the plurality of conveyor belt wheels. At least one of the plurality of conveyor belt wheels is connected to an input part motor;

[0036] The input conveyor belts of the two groups of conveyor belt mechanisms on the input part side plates are arranged in parallel and have a conveying gap. The conveying gaps between the conveyor belt mechanisms on the two input part side plates are arranged in parallel, and the conveying gap is located above the placing surface.

[0037] In one possible implementation manner, for the mask production line provided by the embodiments of the present application, the mask folding device further includes a material output conveyor part, and the feeding end of the material output conveyor part is located below the folding opening;

[0038] The material output conveyor part includes two output part side plates arranged at intervals. At least two conveyor roller groups are provided between the two output part side plates. Each conveyor roller group includes a plurality of conveyor rollers and an output conveyor belt sleeved on the plurality of conveyor rollers. An output channel is formed between two adjacent conveyor belts and between the two output part side plates. At least one of the plurality of conveyor rollers is connected to an output part motor;

[0039] The output channel has a vertically arranged head channel. The top end of the head channel has a channel entrance, and the channel entrance is directly opposite to the lower part of the folding opening.

[0040] In one possible implementation manner, for the mask production line provided by the embodiments of the present application, the mask folding device further includes a position correction part. The position correction part includes a correction telescopic device and a correction push plate. One correction telescopic device is provided on each side of the two guide plates away from the folding opening. One correction push plate is connected to each of the two correction telescopic devices, and the two correction telescopic devices can drive the correction push plates connected thereto to approach or move away from each other.

[0041] In one possible implementation manner, for the mask production line provided by the embodiments of the present application, the sliding mechanism includes a strap part slide rail and a sliding seat arranged on the strap part slide rail, and the movable gripper is connected to the sliding seat;

[0042] The cutting part further includes a suspension. The suspension is located above the conveying mechanism. The scissors are connected to the suspension and the cutting edge of the scissors faces downward; two blocking strips are provided at the bottom end of the suspension, and the two blocking strips are respectively located above both sides of the conveying mechanism.

[0043] In one possible implementation, for the mask production line provided by the embodiments of the present application, the conveying mechanism includes a conveyor belt, conveying rollers, a conveying seat, and a conveying motor;

[0044] The number of the conveying rollers is two, and the two conveying rollers are respectively located on the front and rear sides of the portal frame; one conveying seat is provided at each end of the conveying roller, the conveying seat is connected to the upper end of the bottom plate, and the two ends of the conveying roller are rotatably connected to the bearings of the conveying seat;

[0045] The conveyor belt is sleeved on the two conveying rollers, and the conveying motor is connected to the conveying roller through a belt pulley mechanism and can drive the conveying roller to rotate.

[0046] Advantages of the present application: The mask production line provided by the embodiments of the present application can realize the full automation of mask welding, earloop folding, mask folding, and mask packaging. It eliminates operations such as manual cutting and placing of earloops during the welding process, can improve the welding efficiency of mask earloops, has a good folding effect, can avoid the problem of mask contamination caused by manual touch, and also makes the mask welding process safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0048] Figure 1 is a schematic structural diagram of the mask production line provided by the embodiments of the present application;

[0049] Figure 2 is a schematic structural diagram of the mask earloop welding device provided by the embodiments of the present application;

[0050] Figure 3 is a position relationship diagram of the mask earloop welding device provided by the embodiments of the present application;

[0051] Figure 4 is Figure 1 an enlarged schematic diagram of part A in

[0052] Figure 5 is a schematic diagram of the strap pulling part of the mask earloop welding device provided by the embodiments of the present application;

[0053] Figure 6 is a schematic diagram of the cutting part of the mask earloop welding device provided by the embodiments of the present application;

[0054] Figure 7 It is a schematic diagram of the clamping part in the mask earband welding device provided by an embodiment of the present application;

[0055] Figure 8 It is a schematic diagram of the welding part in the mask earband welding device provided by an embodiment of the present application;

[0056] Figure 9 It is a schematic structural diagram of the mask folding device provided by an embodiment of the present application;

[0057] Figure 10 It is an exploded schematic diagram of the mask folding device provided by an embodiment of the present application;

[0058] Figure 11 It is Figure 9 an enlarged schematic diagram at position B in

[0059] Figure 12 It is a schematic structural diagram of the earband folding part in the mask folding device provided by an embodiment of the present application;

[0060] Figure 13 It is a schematic structural diagram of the gantry frame in the mask folding device provided by an embodiment of the present application;

[0061] Figure 14 It is a schematic structural diagram of the horizontal belt pushing mechanism in the mask folding device provided by an embodiment of the present application;

[0062] Figure 15 It is a schematic structural diagram of the conveying mechanism in the mask folding device provided by an embodiment of the present application;

[0063] Figure 16 It is a schematic structural diagram of the bottom pushing part in the mask folding device provided by an embodiment of the present application;

[0064] Figure 17 It is a schematic structural diagram of the vertical belt pressing mechanism in the mask folding device provided by an embodiment of the present application;

[0065] Figure 18 It is a schematic structural diagram of the mask folding device provided by an embodiment of the present application Figure 1 ;

[0066] Figure 19 It is a schematic structural diagram of the mask folding device provided by an embodiment of the present application Figure 2 ;

[0067] Figure 20 It is Figure 19 an enlarged schematic diagram at position C in

[0068] Figure 21 It is a schematic structural diagram of the material input conveying part in the mask folding device provided by an embodiment of the present application;

[0069] Figure 22 It is a schematic structural diagram of the lower pressing transmission mechanism in the mask folding device provided by an embodiment of the present application Figure 1 ;

[0070] Figure 23 It is a schematic structural diagram of the lower pressing transmission mechanism in the mask folding device provided by an embodiment of the present application Figure 2 ;

[0071] Figure 24 It is a schematic structural diagram of the mask packaging equipment provided by an embodiment of the present application Figure 1 ;

[0072] Figure 25 It is a schematic structural diagram of the mask packaging equipment provided by an embodiment of the present application Figure 2 ;

[0073] Figure 26 It is a schematic side view of the mask packaging equipment provided by an embodiment of the present application;

[0074] Figure 27 It is Figure 3 an enlarged schematic diagram at position D in

[0075] Figure 28 It is an exploded view of the heat sealing part in the mask packaging equipment provided by an embodiment of the present application;

[0076] Figure 29 It is a schematic diagram of the lower pressing device in the mask packaging equipment provided by an embodiment of the present application;

[0077] Figure 30 It is a schematic diagram of the upper pushing device in the mask packaging equipment provided by an embodiment of the present application;

[0078] Figure 31 It is a schematic diagram of the heating plate in the mask packaging equipment provided by an embodiment of the present application;

[0079] Figure 32 It is a schematic diagram of the cutting part in the mask packaging equipment provided by an embodiment of the present application;

[0080] Figure 33 It is a schematic diagram of the cutting roller group in the mask packaging equipment provided by an embodiment of the present application.

[0081] Description of reference numerals

[0082] 10 - Conveyor platform;

[0083] 11 - Bottom plate;

[0084] 12 - Conveyor mechanism;

[0085] 121 - Conveyor belt;

[0086] 122 - Conveyor roller;

[0087] 123 - Conveyor seat;

[0088] 124 - Conveyor motor;

[0089] 125 - Partition block;

[0090] 20 - Mask earloop welding device;

[0091] 220 - Tape pulling part;

[0092] 221 - Tape pulling part slide rail;

[0093] 222 - Slide seat;

[0094] 223 - Movable gripper;

[0095] 224 - Fixed gripper;

[0096] 230 - Cutting part;

[0097] 231 - Suspension;

[0098] 232 - Scissors;

[0099] 233 - Blocking bar;

[0100] 240 - Entraining part;

[0101] 241 - Lifting bracket;

[0102] 242 - Steering mechanism;

[0103] 243 - Tweezers for picking;

[0104] 250 - Welding part;

[0105] 251 - Upright frame;

[0106] 252 - Lifting mechanism;

[0107] 253 - Welding head;

[0108] 30 - Mask tape folding device;

[0109] 310 - Earloop folding part;

[0110] 311 - Gantry frame;

[0111] 3111 - Guide inclined plate;

[0112] 3112 - Guide inclined surface;

[0113] 3113 - Guide plane;

[0114] 3114 - Side vertical plate;

[0115] 3115 - Horizontal plate;

[0116] 312 - Horizontal belt pushing mechanism;

[0117] 3121 - Horizontal push plate;

[0118] 3122 - Horizontal belt pushing slide rail;

[0119] 3123 - Horizontal belt pushing slider;

[0120] 3124 - Horizontal belt pushing motor;

[0121] 3125 - Rack;

[0122] 3126 - Gear;

[0123] 313 - Vertical belt pressing mechanism;

[0124] 3131 - Vertical belt pressing support plate;

[0125] 3132 - Vertical belt pressing slider;

[0126] 3133 - Vertical belt pressing slide rail;

[0127] 3134 - Vertical belt pressing cylinder;

[0128] 3135 - Indentation punch;

[0129] 320 - Bottom lifting part;

[0130] 321 - Bottom lifting head;

[0131] 322 - Bottom lifting cylinder;

[0132] 40 - Mask folding device;

[0133] 411 - Guide plate;

[0134] 412 - Folding opening;

[0135] 421 - Lower pressing top plate;

[0136] 431 - Input part side plate;

[0137] 432 - Conveyor belt pulley;

[0138] 433 - Input conveyor belt;

[0139] 434 - Input part motor;

[0140] 435 - Conveying gap;

[0141] 441 - Output part side plate;

[0142] 442 - Conveyor roller;

[0143] 443 - Output conveyor belt;

[0144] 444 - Output channel;

[0145] 445 - Output part motor;

[0146] 451 - Correction telescopic device;

[0147] 452 - Correction push plate;

[0148] 461 - Pressing drive base;

[0149] 4611 - Drive base plate;

[0150] 4612 - Drive base vertical plate;

[0151] 462 - Pressing drive motor;

[0152] 463 - Pressing support plate;

[0153] 4631 - Pressing fixing frame;

[0154] 464 - Vertical slider;

[0155] 465 - Pressing part slide rail;

[0156] 466 - Pressing guide wheel;

[0157] 467 - Belt pulley;

[0158] 468 - Transmission belt;

[0159] 50 - Mask making machine;

[0160] 60 - Mask packaging equipment;

[0161] 610 - Frame;

[0162] 620 - Unwinding part;

[0163] 621 - Unwinding roller;

[0164] 622 - Intermediate roller;

[0165] 630 - Heat sealing part;

[0166] 631 - Pressing device;

[0167] 6311 - Heating plate;

[0168] 63111 - Metal upper die;

[0169] 6312 - Pressing base plate;

[0170] 6313 - Pressing cylinder;

[0171] 632 - Upper top device;

[0172] 6321 - Upper top plate;

[0173] 63211 - Silicone lower mold;

[0174] 6322 - Upper top substrate;

[0175] 6323 - Upper top rotating shaft;

[0176] 6324 - Upper top motor;

[0177] 6325 - Linear bearing;

[0178] 6326 - Guide shaft;

[0179] 6327 - Eccentric wheel;

[0180] 633 - Side support plate;

[0181] 640 - Slitting part;

[0182] 641 - Slitting frame;

[0183] 642 - Slitting roller group;

[0184] 6421 - Knife roller;

[0185] 64211 - Cutting knife;

[0186] 6422 - Anvil roller;

[0187] 64221 - Cutting groove;

[0188] 643 - Gear set;

[0189] 650 - Mask conveyor belt;

[0190] 660 - Laminating paper;

[0191] 670 - Medical dialysis paper;

[0192] 680 - Parallel section;

[0193] 690 - Entrance;

[0194] 70 - Ear loop;

[0195] 80 - Mask. Detailed implementation manners

[0196] To make the objectives, technical solutions, and advantages of this application more clear, the following will describe in more detail the technical solutions in the embodiments of this application with reference to the accompanying drawings in the preferred embodiments of this application. In the drawings, the same or similar reference numerals represent the same or similar components or components with the same or similar functions from beginning to end. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain this application and should not be construed as a limitation to this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0197] See Figures 1 - 33 As shown, the embodiment of this application provides a mask production line, including a mask punching machine 50, a mask ear strap welding device 20, a mask folding device 30, a mask folding device 40, a conveying platform 10, and a mask packaging device 60; the mask punching machine 50 is arranged on the front side of the conveying platform 10, the mask ear strap welding device 20 and the mask folding device 30 are arranged on the conveying platform 10, and the mask ear strap welding device 20 is located on the front side of the mask folding device 30, the mask folding device 40 is arranged on the rear side of the conveying platform 10, and the mask packaging device 60 is arranged on the rear side of the mask folding device 40, where:

[0198] See Figure 2 As shown, the conveying platform 10 includes a bottom plate 11 and a conveying mechanism 12 arranged on the bottom plate 11. The bottom plate 11 is a fixed plate for each part of the mask ear strap welding device 20 and the mask folding device 30. The conveying mechanism 12 is used to transport the mask 80 after the ear straps 70 are welded to the mask folding device 30 for folding and then to the mask folding device 40 for folding.

[0199] See Figures 2 to 8 As shown, the mask ear strap welding device 20 includes a strap pulling part 220, a cutting part 230, a clamping part 240, and a welding part 250.

[0200] See Figure 5 As shown, the strap pulling part 220 includes a sliding mechanism, a fixed gripper 224, and a movable gripper 223. The sliding mechanism is arranged on the bottom plate 11, the movable gripper 223 is connected to the sliding mechanism, and the fixed gripper 224 is fixed on one side of the movable mechanism. The sliding mechanism can drive the sliding gripper to approach or move away from the fixed gripper 224. Both the fixed gripper 224 and the movable gripper 223 can perform the actions of grasping and releasing the ear strap 70. One strap pulling part 220 is arranged on each side of the conveying mechanism 12, and the two strap pulling parts 220 are symmetrically arranged with each other and are respectively used to correspondingly grasp the two ear straps 70 on the mask 80.

[0201] See Figure 6As shown, the cutting part 230 includes two scissors 232 which are respectively arranged between the fixed grippers 224 and the movable grippers 223 of the two strap parts 220, and the scissors 232 are close to the fixed grippers 224. The scissors 232 are used to cut the ear straps 70 so as to cut the ear straps 70 into the lengths required for manufacturing the masks 80.

[0202] See Figure 7 As shown, the clamping part 240 includes a lifting bracket 241, a steering mechanism 242 and clamping tweezers 243. The steering mechanism 242 is connected to the lifting bracket 241, the clamping tweezers 243 are arranged and connected to the lower end of the steering mechanism 242, and the clamping tweezers 243 are located between the fixed gripper 224 and the movable gripper 223; the lifting bracket 241 can drive the steering mechanism 242 to move up and down, the steering mechanism 242 can drive the clamping tweezers 243 to rotate, and the clamping tweezers 243 can perform the actions of clamping and releasing the ear straps 70. The number of the steering mechanisms 242 is four, and the four steering mechanisms 242 are distributed in pairs on both sides of the conveying mechanism 12 respectively. A clamping tweezer 243 is connected to the lower end of each steering mechanism 242, and the two tweezers on the same side are used to correspondingly clamp the two ends of the ear straps 70 on the same side.

[0203] See Figure 8 As shown, the welding part 250 includes a vertical frame 251, a lifting mechanism 252 and a welding head 253. The lifting mechanism 252 is connected to the vertical frame 251, the welding head 253 is connected to the bottom end of the lifting mechanism 252, the welding head is located above the conveying mechanism 12, and the lifting mechanism 252 can drive the welding head 253 to move in the vertical direction. The number of the welding heads 253 is four, and the four welding heads 253 are distributed in pairs on both sides of the conveying mechanism 12 respectively. The two welding heads 253 on the same side are used to correspondingly weld the two ends of the ear straps 70 on the same side to the mask 80.

[0204] See Figures 9 - 17 As shown, the mask folding belt device 30 includes an ear strap folding part 310 and a bottom pushing part 320.

[0205] See Figures 10 - 12 As shown, the ear strap folding part 310 includes a portal frame 311 and a horizontal belt pushing mechanism 312. The portal frame 311 is connected to the upper end of the bottom plate 11. The portal frame 311 is used to support the horizontal belt pushing mechanism 312. A horizontal belt pushing mechanism 312 is arranged on each of the opposite sides of the portal frame 311. The two horizontal belt pushing mechanisms 312 on the portal frame 311 are symmetrically arranged and distributed on the opposite sides of the conveying mechanism 12.

[0206] See Figure 12As shown in the figure, the horizontal belt pushing mechanism 312 includes a horizontal push plate 3121, a horizontal belt pushing slide rail 3122, a horizontal belt pushing slider 3123 and a horizontal belt pushing motor 3124. The horizontal belt pushing slide rail 3122 is fixedly connected to the side of the portal. The horizontal belt pushing slider 3123 slides on the horizontal belt pushing slide rail 3122. The horizontal push plate 3121 is connected to the slider. The head end of the horizontal push plate 3121 faces the inside of the portal frame 311. The horizontal belt pushing motor 3124 is installed on the portal frame 311. The horizontal belt pushing motor 3124 can drive the horizontal belt pushing slider 3123 to slide on the horizontal belt pushing slide rail 3122. A rack 3125 is fixed on the horizontal belt pushing slider 3123. The horizontal push plate 3121 is installed on the rack 3125. A gear 3126 is connected to the horizontal belt pushing motor 3124. The gear 3126 meshes with the rack 3125. After the horizontal belt pushing motor 3124 is started, it drives the gear 3126 to rotate. When the gear 3126 rotates, it drives the rack 3125 to extend or retract, thereby driving the horizontal push plate 3121 to extend or retract.

[0207] See Figure 16 As shown in the figure, the bottom pushing part 320 includes a bottom pushing head 321. The top end of the bottom pushing head 321 is a plane. The top end of the bottom pushing head 321 is located below the horizontal push plate 3121. One bottom pushing head 321 is provided below each of the two horizontal push plates 3121. The top surface of the bottom pushing head 321 is used to receive the mask 80 conveyed by the conveying mechanism 12.

[0208] See Figures 18 - 23 As shown in the figure, the mask folding device 40 includes a material staying part and a material pressing part.

[0209] See Figure 19 and Figure 20 As shown in the figure, the material staying part is used to receive the mask 80 and guide the folding of the mask 80. The material staying part includes two guide plates 411. The two guide plates 411 are inclined to each other. The upper surface of the guide plate 411 has a guide inclined surface 3112. The guide inclined surfaces 3112 of the two guide plates 411 are distributed in a V shape. A guide vertical surface is provided at the lowest point of the guide plate 411 near the guide inclined surface 3112. A folding opening 412 is formed between the guide vertical surfaces of the two guide plates 411. A horizontal placing surface is provided at the highest point of the guide plate 411 near the guide inclined surface 3112.

[0210] See Figure 19 and Figure 20As shown in the figure, the material pressing part is used to apply a downward pressing force to the mask 80 on the material staying part. The material pressing part is located above the material staying part. The material pressing part includes a pressing transmission mechanism and a vertically arranged pressing top plate 421. The lower end of the pressing top plate 421 faces the folding opening 412. The upper end of the pressing top is connected to the pressing transmission mechanism. The pressing transmission mechanism can drive the pressing top plate 421 to insert downward into the folding opening 412 or drive the pressing top plate 421 to withdraw upward from the folding opening 412.

[0211] See Figures 24 - 33 As shown in the figure, the mask packaging device 60 includes a frame 610 and a unwinding part 620 and a heat sealing part 630 provided on the frame 610.

[0212] The unwinding part 620 is used to store and provide packaging materials. It includes two unwinding rollers 621 for supporting the packaging materials. The packaging materials supported on the two unwinding rollers 621 are a PE-coated paper 660 and a medical dialysis paper 670 respectively. After the discharging ends of the unwinding rollers 621, there are multiple intermediate rollers 622 for guiding the movement direction of the packaging materials and multiple tension wheels for applying a pulling force to the packaging materials. Due to the different tensile deformation amounts caused by the material differences between the PE-coated paper 660 and the medical dialysis paper 670, the two rolls of packaging materials cannot be synchronized. And product information is pre-printed on the PE-coated paper 660 and the medical dialysis paper 670. If they cannot be synchronized, it will cause information misalignment. Therefore, it can adjust the pressing degree of the tension wheels to apply a certain pulling force to the film so as to keep a stable conveying speed. Markings that are easy to identify and track, such as color bars, grooves or special marks, etc., can also be set on the two rolls of packaging materials, especially at their edges or specific positions. These markings are monitored and identified in real time by high-precision photoelectric sensors or other detection devices. The relative position relationship between the markings on the two rolls of packaging materials can be accurately measured. Once it is recognized that there is a deviation in the marking positions on the two rolls of packaging materials, a signal will be immediately sent to the control system. The control system will automatically adjust the conveying speeds or positions of the two rolls of packaging materials according to these signals to make them reach the synchronous state again. The movement routes of the packaging materials on the two unwinding rollers 621 include a parallel section 680 where they move parallel to each other. The packaging materials on the two unwinding rollers 621 form a mask inlet 690 at the starting point of the parallel section 680. This inlet 690 is used for the mask to enter the parallel section 680, so that the mask is clamped between the two packaging materials, namely the PE-coated paper 660 and the medical dialysis paper 670, and the mask moves along with the two packaging materials.

[0213] The heat-sealing part 630 is used to heat-seal the coated paper 660 and the medical dialysis paper 670 to form a packaging bag containing masks. The heat-sealing part 630 includes a downward pressing device 631 and an upward pushing device 632, and the downward pressing device 631 and the upward pushing device 632 are connected by a side support plate 633. The downward pressing device 631 includes a heating plate 6311 and a downward pressing power mechanism for driving the heating plate 6311 to move downward. The downward pressing power mechanism is connected to the side support plate 633, and the heating plate 6311 is connected to the bottom end of the downward pressing power mechanism. The upward pushing device 632 includes an upper top plate 6321 and an upward pushing power mechanism for driving the upper top plate 6321 to move upward. The upward pushing power mechanism is connected to the side support plate 633, and the upper top plate 6321 is connected to the top end of the upward pushing power mechanism. The upper top plate 6321 is located directly below the heating plate 6311, and the heating plate 6311 and the upper top plate 6321 are respectively located on opposite sides of the parallel section 680. When the mask runs between the heating plate 6311 and the upper top plate 6321, the downward pressing power mechanism and the upward pushing power mechanism respectively drive the heating plate 6311 and the upper top plate 6321 to press tightly between the two packaging materials containing the mask, thereby forming a packaging bag containing the mask.

[0214] Different from the market situation where a single unwinding roller 621 is used to unwind the transparent plastic packaging material, the above-mentioned mask packaging device 60 can simultaneously unwind the two packaging materials, namely the coated paper 660 and the medical dialysis paper 670, through two unwinding rollers 621. The medical dialysis paper 670 allows ethylene oxide sterilization factors or high-temperature steam to pass through, so as to sterilize the medical devices inside the package. At the same time, it can effectively block the entry of microorganisms such as bacteria and dust into the package interior and maintain the sterile state of the medical devices. Based on the characteristics of the medical dialysis paper 670, the packaged masks can be sterilized with ethylene oxide inside the packaging bag.

[0215] Working process: The raw material of the ear strap 70 is set in a roll. The head end of the ear strap 70 passes through the fixed gripper 224, and the part of the ear strap 70 near the head end is clamped by the fixed gripper 224 to prevent the head end of the ear strap 70 from falling off. When the equipment is running, the sliding mechanism drives the movable gripper 223 to approach the fixed gripper 224, and the movable gripper 223 clamps the head end of the ear strap 70. Then, the fixed gripper 224 releases, and after the sliding mechanism drives the movable gripper 223 to move away from the fixed gripper 224 by a certain distance, the fixed gripper 224 clamps the ear strap 70. At this time, a section of the ear strap 70 is grasped between the fixed gripper 224 and the movable gripper 223. The scissors 232 are started, and the scissors 232 cut the side of the ear strap 70 near the fixed gripper 224 to form an ear strap 70 with a certain length. At the same time, the lifting bracket 241 drives the two clamping tweezers 243 to quickly move downwards and clamp near both ends of the ear strap 70. Then, the movable gripper 223 also releases, and the turning mechanism 242 drives the clamping tweezers 243 to turn towards the conveying mechanism 12, so as to fold both ends of the ear strap 70 above the mask 80 placed on the conveying mechanism 12. Then, the lifting mechanism 252 drives the welding head 253 to press down, so that both ends of the ear strap 70 are in close contact with the mask 80 and welding is started, thereby welding the ear strap 70 to the mask 80. Then, each part resets, and the conveying mechanism 12 conveys the welded mask 80 to the mask folding device 30.

[0216] The mask 80 after the ear strap 70 is welded is conveyed to the top surface of the bottom pushing head 321 through the conveying mechanism 12. At this time, the horizontal belt pushing motors 3124 of the two horizontal belt pushing mechanisms 312 are started, driving the gears 3126 to rotate. When the gears 3126 rotate, they drive the racks 3125 to extend, so as to drive the horizontal push plates 3121 of the two horizontal belt pushing mechanisms 312 to simultaneously extend towards the top surface of the bottom pushing head 321 and the side where the surface of the conveying mechanism 12 is located. The two horizontal push plates 3121 approach each other, so as to simultaneously push the ear straps 70 on both sides of the mask 80 towards the middle of the mask 80, thereby realizing the folding of the ear straps 70 of the mask 80 towards the middle of the mask 80. Then, the horizontal belt pushing motor 3124 is started again and drives the gear 3126 to rotate in the reverse direction, driving the rack 3125 to retract, and conveys the mask 80 with the ear straps 70 already folded to the mask folding device 40 through the conveying mechanism 12.

[0217] The mask 80 with the ear loops 70 already folded is transported to the placement surface of the two guide plates 411 by the conveying mechanism 12. Then, the downward pressing transmission mechanism is activated, and the downward pressing top plate 421 is driven by the downward pressing transmission mechanism to move downward. When the downward pressing top plate 421 moves downward to a certain extent, it will press on the mask 80 and bend the mask 80 downward. At this time, affected by the guiding inclined surface 3112, the mask 80 has a tendency to be bent into a V shape. As the downward pressing top plate 421 continues to move downward, the mask 80 will be pressed into the folding opening 412. At this time, affected by the guiding vertical surface, both sides of the mask 80 will stand up upward with the downward pressing top as the center. At this time, the downward pressing transmission mechanism drives the downward pressing top plate 421 to move upward away from the mask 80, thus completing the folding of the mask 80. The folded mask 80 is transported to the mask packaging device 60 for packaging, and then after slitting, the mask 80 with an independent packaging wrapper is formed.

[0218] The mask production line provided by the embodiment of the present application can achieve the full automation of mask welding, ear loop folding, mask folding, and mask packaging. It eliminates operations such as manual cutting and placing of ear loops during the welding process, can improve the welding efficiency of mask ear loops, has a good folding effect, can avoid the problem of mask contamination caused by manual touch, and also makes the mask welding process safer.

[0219] See Figure 4 and Figure 5 As shown, specifically, the sliding mechanism includes the slide rail of the strap part 220 and the slide seat 222 arranged on the slide rail of the strap part 220, and the movable gripper 223 is connected to the slide seat 222. The movable gripper 223 all includes a claw-type cylinder, and the clamping forceps 243 includes a finger cylinder and the forceps handle arranged on the finger cylinder. The cutting part 230 further includes a suspension 231, the suspension 231 is located above the conveying mechanism 12, the scissors 232 are connected to the suspension 231 and the direction of the cutting edge is downward, and two blocking strips 233 are arranged at the bottom end of the suspension 231, and the two blocking strips 233 are respectively located above both sides of the conveying mechanism 12. The blocking strips 233 are used to prevent the mask 80 from tilting and ensure that the mask 80 is neatly placed on the conveying mechanism 12.

[0220] See Figures 11 - 15As shown in the figure, specifically, the portal frame 311 includes two side vertical plates 3114 and a horizontal plate 3115 disposed on the two side vertical plates 3114. The horizontal push belt mechanism 312 is connected to the side vertical plates 3114. The conveying mechanism 12 includes a conveyor belt 121, conveying rollers 122, a conveying seat 123, and a conveying motor 124. The number of the conveying rollers 122 is two, and the two conveying rollers 122 are respectively located on the front and rear sides of the portal frame 311. One conveying seat 123 is provided at each end of the conveying roller 122. The conveying seat 123 is connected to the upper end of the bottom plate 11, and the two ends of the conveying roller 122 are rotatably connected to the bearings of the conveying seat 123. The conveyor belt 121 is sleeved on the two conveying rollers 122. A plurality of partition blocks 125 are provided on the surface of the conveyor belt 121, and a mask 80 placement position is defined between two adjacent partition blocks 125. The conveying motor 124 is connected to the conveying roller 122 through a belt pulley mechanism. The conveying motor 124 transmits power to the conveying roller 122 through the belt pulley mechanism, causing the conveying roller 122 to rotate. The conveying roller 122 drives the conveyor belt 121 to move by rotation, thereby driving the mask 80 placed on the mask 80 placement position to move.

[0221] See Figures 11 - 18 As shown in the figure, in the embodiment of the present application, in addition to the horizontal push belt mechanism 312, the ear strap folding part 310 further includes a vertical pressing belt mechanism 313 for pressing a crease on the already folded ear strap 70. The vertical pressing belt mechanism 313 is disposed on the portal frame 311 and is located above the horizontal push belt mechanism 312. The vertical pressing belt mechanism 313 includes a crease pressing component and a vertical pressing belt downward pressing component. Two crease pressing components are provided on the vertical pressing belt downward pressing component, and the two crease pressing components are respectively located above the two bottom pushing heads 321. The bottom end of the crease pressing component has two crease pressing heads 3135, and the crease pressing heads 3135 face the top surface of the bottom pushing head 321.

[0222] See Figure 17 and Figure 18 As shown in the figure, the vertical pressing belt downward pressing component includes a vertical pressing belt support plate 3131, a vertical pressing belt slider 3132, a vertical pressing belt slide rail 3133, and a vertical pressing belt cylinder 3134. A vertical pressing belt slide rail 3133 is provided on each of the opposite sides of the portal frame 311. A vertical pressing belt slider 3132 is slidably disposed on the vertical pressing belt slide rail 3133, and the vertical pressing belt support plate 3131 is connected to the vertical pressing belt slider 3132. The crease pressing component is connected to the bottom end of the vertical pressing belt support plate 3131. The vertical pressing belt cylinder 3134 is fixed on the portal frame 311, and the vertical pressing belt support plate 3131 is connected to the piston rod of the vertical pressing belt cylinder 3134. The bottom pushing part 320 further includes a bottom pushing cylinder 322. The bottom pushing cylinder 322 is connected to the lower side of the bottom plate 11, and the piston rod of the bottom pushing cylinder 322 is connected to the bottom end of the bottom pushing head 321.

[0223] See Figure 11 As shown, specifically, two guiding inclined plates 3111 are provided on the gantry frame 311, and the two guiding inclined plates 3111 are symmetrically distributed on the opposite sides of the conveying mechanism 12. The guiding inclined plate 3111 includes a guiding inclined surface, the guiding inclined surface inclines downward so that a part of the guiding inclined surface is located below the material placing surface of the conveying mechanism 12, and another part of the guiding inclined surface is located above the material placing surface of the conveying mechanism 12. The middle part of the guiding inclined surface has a guiding plane 3113, the guiding plane 3113 is located at the edge of the guiding inclined plate 3111 close to the conveying mechanism 12, and the guiding plane 3113 is located above the material placing surface of the conveying mechanism 12. The guiding plane is flush with the top surface of the bottom pushing head 321 or located above the top surface of the bottom pushing head 321.

[0224] When the mask 80 is placed at the mask 80 placing position of the conveying mechanism 12, both sides of the mask 80 extend out of the conveyor belt 121 of the conveying mechanism 12. During the conveying process of the conveying mechanism 12 for the mask 80 completed in the previous process, both sides of the mask 80 will contact the guiding inclined surface and move upward along the guiding inclined surface 3112, and move to the guiding plane 3113, and then pass through the guiding plane 3113 and move to the top surface of the bottom pushing head 321 and stay. At this time, after the horizontal belt pushing mechanism 312 performs an operation, the ear straps 70 of the mask 80 are folded towards the middle of the mask 80. Then, the vertical belt pressing cylinder 3134 is started to press down the vertical belt pressing support plate 3131, and the vertical belt pressing support plate 3131 drives the indentation pressing head 3135 to press down. The four indentation pressing heads 3135 on the two indentation assemblies are exactly aligned with the four folding positions of the ear straps 70, so as to press out creases on the ear straps 70. During this process, when starting the vertical belt pressing cylinder 3134, the bottom pushing cylinder 322 can also be started to make the bottom pushing head 321 move upward, so as to press out creases on the ear straps 70. Due to the existence of this crease, the folded ear straps 70 are not easy to spread out during the subsequent transportation process and can better maintain the folded state.

[0225] See Figure 19 and Figure 20As shown in the figure, in the embodiment of the present application, the mask folding device 40 further includes a position correction part, which includes a correction telescopic device 451 and a correction push plate 452. A correction telescopic device 451 is provided on each side of the two guide plates 411 away from the folding opening 412. A correction push plate 452 is connected to each of the two correction telescopic devices 451. The two correction telescopic devices 451 can drive the correction push plates 452 connected thereto to approach or move away from each other. When the mask 80 is placed on the placement surface of the guide plate 411, the correction telescopic device 451 drives the correction push plates 452 to approach each other, so that the mask 80 can be pushed directly above the folding opening 412, and the folding opening 412 is exactly aligned with the midline of the mask 80, realizing the correction of the position of the mask 80, which is beneficial to the folding of the mask 80.

[0226] Specifically, the correction telescopic device 451 is a cylinder, and the correction push plate 452 is connected to the piston rod of the cylinder. The side surface of the correction push plate 452 has a vertical plane.

[0227] See Figure 21 As shown in the figure, in the embodiment of the present application, the mask folding device 40 further includes a material input conveying part, which can be docked with the upstream device and is used to transport the mask 80 produced by the upstream device to the material staying part. The discharge end of the material input conveying part faces upward above the material staying part. The material input conveying part includes two input part side plates 431 arranged at intervals. Two sets of conveyor belt mechanisms are provided on the input part side plates 431. The conveyor belt mechanism includes a plurality of conveyor belt wheels 432 provided on the input part side plates 431, and an input conveyor belt 433 sleeved on the plurality of conveyor belt wheels 432. At least one of the plurality of conveyor belt wheels 432 is connected to the input part motor 434. The input conveyor belts 433 of the two sets of conveyor belt mechanisms on the input part side plates 431 are arranged in parallel and have a conveying gap 435. The conveying gaps 435 between the conveyor belt mechanisms on the two input part side plates 431 are arranged in parallel, and the conveying gap 435 is located above the placement surface. The mask 80 is located in the conveying gap 435 during transportation and is clamped between the upper and lower input conveyor belts 433, so as to move together with the input conveyor belt 433.

[0228] See Figure 19 and Figure 20As shown, in the embodiment of the present application, the mask folding device 40 further includes a material output conveying part. The material input conveying part can be docked with downstream equipment and is used to transport the folded mask 80 to the downstream equipment. The feeding end of the material output conveying part is located below the folding opening 412. The material output conveying part includes two spaced-apart output part side plates 441. Between the two output part side plates 441, there are provided at least two sets of conveying rollers 442. Each set of conveying rollers 442 includes a plurality of conveying rollers 442 and an output conveyor belt 443 sleeved on the plurality of conveying rollers 442. An output channel 444 is formed between two adjacent conveyor belts and the two output part side plates 441. At least one of the plurality of conveying rollers 442 is connected to the output part motor 445. The output channel 444 has a vertically arranged head channel. The top end of the head channel has a channel entrance, and the channel entrance is directly opposite to the lower part of the folding opening 412. The folded mask 80 just enters the channel entrance through the folding opening 412 and enters the head channel. The mask 80 enters the output channel 444 driven by the output conveyor belt 443 and finally reaches the downstream equipment.

[0229] See Figure 22 and Figure 23 As shown, in the embodiment of the present application, the downward pressing transmission mechanism includes a downward pressing transmission base 461, and the downward pressing transmission base 461 is fixed above the material staying part; a downward pressing transmission motor 462 and a downward pressing transmission component are installed on the downward pressing transmission base 461. The downward pressing top plate 421 is connected to the downward pressing transmission component, and the downward pressing transmission motor 462 drives the downward pressing top plate 421 to press down or rise in the vertical direction through the downward pressing transmission component.

[0230] Among them, the downward pressing transmission base 461 includes a transmission base plate 4611 and a transmission base vertical plate 4612. The transmission base vertical plate 4612 is connected to the transmission base plate 4611, and the downward pressing transmission motor 462 is installed on the transmission base vertical plate 4612. The bottom end of the downward pressing support plate 463 is provided with a downward pressing fixing frame 4631, and the downward pressing top plate 421 is connected to the downward pressing fixing frame 4631.

[0231] See Figure 22 and Figure 23As shown in the figure, the downward pressing transmission assembly includes a downward pressing support plate 463, a vertical slider 464, a partial downward pressing slide rail 465, a downward pressing guide wheel 466, a transmission belt pulley 467, and a transmission belt 468; the downward pressing top plate 421 is connected to the bottom end of the downward pressing support plate 463, the partial downward pressing slide rail 465 is vertically connected to the side surface of the downward pressing support plate 463, the vertical slider 464 is fixedly connected to the downward pressing transmission base 461 and the vertical slider 464 is movably connected to the partial downward pressing slide rail 465. The downward pressing guide wheel 466 is connected to the downward pressing transmission base 461, the transmission belt pulley 467 is connected to the downward pressing transmission motor 462, the transmission belt 468 is sleeved between the transmission belt pulley 467 and the downward pressing guide wheel 466, and the two ends of the transmission belt 468 are respectively connected to the upper and lower ends of the downward pressing support plate 463. By driving the transmission belt pulley 467 to rotate through the downward pressing transmission motor 462, the movement of the transmission belt 468 can be driven. The movement of the transmission belt 468 is transmitted to the downward pressing support plate 463 through the downward pressing guide wheel 466, so as to drive the downward pressing support plate 463 to move up and down along the channel direction of the vertical slider 464.

[0232] In the mask production line according to the embodiment of the present application, the mask punching machine 50 is a fully automatic mask punching machine, and a punching machine already available on the market can also be used.

[0233] See Figures 28 - 31 As shown in the figure, specifically, the downward pressing power mechanism includes a downward pressing base plate 6312 and a plurality of downward pressing cylinders 6313 installed on the downward pressing base plate 6312. The heating plate 6311 is connected to the downward pressing cylinders 6313, and the lifting of the downward pressing base plate 6312 is controlled by the telescopic movement of the downward pressing cylinders 6313. The upward pushing power mechanism includes an upward pushing base plate 6322, an upward pushing rotating shaft 6323, and an upward pushing motor 6324. A linear bearing 6325 is provided on the upward pushing top plate 6321, a guide shaft 6326 is provided on the upward pushing base plate 6322, and the linear bearing 6325 is sleeved on the guide shaft 6326. A plurality of eccentric wheels 6327 are provided on the upward pushing rotating shaft 6323, the upward pushing top plate 6321 is placed on the eccentric wheels 6327, and the upward pushing motor 6324 is connected to the upward pushing rotating shaft 6323 and drives the upward pushing rotating shaft 6323 to rotate. By the rotation of the eccentric wheels 6327, the upward pushing top plate 6321 is driven to move up and down along the guide shaft 6326. The two unwinding rollers 621 are respectively located on the opposite sides of the parallel section 680. The unwinding roller 621 for supporting the laminated film paper 660 is located above the unwinding roller 621 for supporting the medical dialysis paper 670.

[0234] See Figure 31As shown, specifically, the bottom end of the heating plate 6311 is provided with a convex metal upper mold 63111, and the top end of the upper top plate 6321 is provided with a silica gel lower mold 63211. The metal upper mold 63111 is disposed directly above the silica gel lower mold 63211. There are several grooves between the metal upper mold 63111 and the silica gel lower mold 63211 that can accommodate one mask, so that when the metal upper mold 63111 and the silica gel lower mold 63211 are combined and hot-pressed, an independent package with a closed outer edge can be formed.

[0235] See Figure 25 , Figure 32 and Figure 33 As shown, in the embodiment of the present application, a slitting part 640 is further provided after the heat-sealing part 630. The slitting part 640 is used to slit the continuous packaging bags formed by the heat-sealed laminated paper 660 and the medical dialysis paper 670 into individual independent packaging bags. The slitting part 640 includes a slitting frame 641 and a slitting roller set disposed on the slitting frame 641. The slitting roller set includes a cutter roller 6421 and an anvil roller 6422 rotatably connected to the slitting frame 641. The cutter roller 6421 and the anvil roller 6422 are connected to a slitting motor through a gear set 643. The surface of the cutter roller 6421 is provided with a cutter 64211, and the surface of the anvil roller 6422 is provided with a cutting groove 64221 that can accommodate the cutter 64211. The cutter roller 6421 and the anvil roller 6422 are respectively located on opposite sides of the parallel section 680. When the continuous packaging bag moves between the cutter roller 6421 and the anvil roller 6422, the part that can form an independent packaging bag falls into the cutting groove 64221, and the cutter roller 6421 and the anvil roller 6422 rotate simultaneously, so that the cutter 64211 cuts into the cutting groove 64221, thereby slitting the continuous packaging bag into individual independent packaging bags.

[0236] See Figure 24 As shown, in the embodiment of the present application, a mask conveying part is provided on the front side of the mask inlet 690. The mask conveying part includes a mask conveyor belt 650, and the mask is fed from the mask inlet 690 between the two packaging materials through the mask conveyor belt 650.

[0237] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A mask production line, characterized in that, It includes a mask punching machine, a mask earband welding device, a mask earband folding device, a mask folding device, a conveying platform and a mask packaging device. The mask punching machine is arranged on the front side of the conveying platform. The mask earband welding device and the mask earband folding device are arranged on the conveying platform, and the mask earband welding device is located in front of the mask earband folding device. The mask folding device is arranged on the rear side of the conveying platform, and the mask packaging device is arranged on the rear side of the mask folding device; The conveying platform includes a bottom plate and a conveying mechanism arranged on the bottom plate; The mask earband welding device includes a tape pulling part, a cutting part, a tape clamping part and a welding part; The tape pulling part includes a sliding mechanism, a fixed gripper and a movable gripper. The sliding mechanism is arranged on the bottom plate. The movable gripper is connected to the sliding mechanism, and the fixed gripper is fixed on one side of the movable mechanism. The sliding mechanism can drive the sliding gripper to approach or move away from the fixed gripper. Both the fixed gripper and the movable gripper can perform the actions of gripping and releasing the earband; The cutting part includes scissors. The scissors are arranged between the fixed gripper and the movable gripper and are close to the fixed gripper; The tape clamping part includes a lifting bracket, a steering mechanism and a clamping forceps. The steering mechanism is connected to the lifting bracket, and the clamping forceps are arranged and connected to the lower end of the steering mechanism. The clamping forceps are located between the fixed gripper and the movable gripper. The lifting bracket can drive the steering mechanism to move up and down, the steering mechanism can drive the clamping forceps to rotate, and the clamping forceps can perform the actions of clamping and releasing the earband; The welding part includes a vertical frame, a lifting mechanism and a welding head. The lifting mechanism is connected to the vertical frame, and the welding head is connected to the bottom end of the lifting mechanism. The welding head is located above the conveying mechanism, and the lifting mechanism can drive the welding head to move in the vertical direction; The mask earband folding device includes an earband folding part and a bottom pushing part; The earband folding part includes a portal frame and a horizontal tape pushing mechanism; The portal frame is connected to the upper end of the bottom plate. Each of the opposite sides of the portal frame is provided with one of the horizontal tape pushing mechanisms. The two horizontal tape pushing mechanisms on the portal frame are symmetrically arranged and distributed on the opposite sides of the conveying mechanism; The horizontal tape pushing mechanism includes a horizontal push plate, a horizontal tape pushing slide rail, a horizontal tape pushing slider and a horizontal tape pushing motor. The horizontal tape pushing slide rail is fixedly connected to the side of the portal. The horizontal tape pushing slider slides on the horizontal tape pushing slide rail. The horizontal push plate is connected to the slider. The head end of the horizontal push plate faces the inside of the portal frame. The horizontal tape pushing motor is installed on the portal frame, and the horizontal tape pushing motor can drive the horizontal tape pushing slider to slide on the horizontal tape pushing slide rail; The bottom pushing part includes a bottom pushing head. The top end of the bottom pushing head is a plane. The top end of the bottom pushing head is located below the horizontal push plate. Each of the two horizontal push plates is provided with one of the bottom pushing heads; The mask folding device includes a material staying part and a material pressing part, and the material pressing part is located above the material staying part; The material staying part includes two guiding plates which are inclined to each other. The upper surface of the guiding plate has a guiding inclined surface, and the guiding inclined surfaces of the two guiding plates are distributed in a V shape; A guiding vertical surface is provided at the lowest position of the guiding inclined surface on the guiding plate, and a folding opening is formed between the guiding vertical surfaces of the two guiding plates; A horizontal placing surface is provided at the highest position of the guiding inclined surface on the guiding plate; The material pressing part includes a pressing transmission mechanism and a vertically arranged pressing top plate. The lower end of the pressing top plate faces the folding opening, the upper end of the pressing top is connected to the pressing transmission mechanism, and the pressing transmission mechanism can drive the pressing top plate to insert downward into the folding opening or drive the pressing top plate to withdraw upward from the folding opening.

2. The mask production line according to claim 1, wherein, The mask packaging equipment includes a machine frame and a unwinding part and a heat sealing part arranged on the machine frame; The unwinding part includes two unwinding rollers for supporting packaging materials. The packaging materials supported on the two unwinding rollers are a coated paper and a medical dialysis paper respectively; After the feeding ends of the unwinding rollers, there are multiple intermediate rollers for guiding the movement direction of the packaging materials and multiple tension wheels for applying tension to the packaging materials; The movement routes of the packaging materials on the two unwinding rollers include a parallel section where they move parallel to each other, and the packaging materials on the two unwinding rollers form an entrance of the mask at the starting point of the parallel section; The heat sealing part includes a pressing device and a top pressing device, and the pressing device and the top pressing device are connected through a side support plate; The pressing device includes a heating plate and a pressing power mechanism for driving the heating plate to move downward. The pressing power mechanism is connected to the side support plate, and the heating plate is connected to the bottom end of the pressing power mechanism; The top pressing device includes a top plate and a top pressing power mechanism for driving the top plate to move upward. The top pressing power mechanism is connected to the side support plate, the top plate is connected to the top end of the top pressing power mechanism, the top plate is located directly below the heating plate, and the heating plate and the top plate are respectively located on opposite sides of the parallel section.

3. The mask production line according to claim 2, characterized in that, The earband folding part further includes a vertical earband pressing mechanism which is arranged on the portal frame and is located above the horizontal earband pushing mechanism; The vertical earband pressing mechanism includes a indentation component and a vertical earband pressing-down component. Two indentation components are arranged on the vertical earband pressing-down component, and the two indentation components are respectively located above the two bottom pushing heads; The bottom end of the indentation component has two indentation pressing heads which face the top surface of the bottom pushing head.

4. The mask production line according to claim 3, characterized in that, The vertical earband pressing-down component includes a vertical earband supporting plate, a vertical earband slider, a vertical earband slide rail and a vertical earband cylinder; One of the vertical pressure belt slide rails is provided on each of the opposite sides of the portal frame. A vertical pressure belt slider is slidably arranged on the vertical pressure belt slide rail, and the vertical pressure belt support plate is connected to the vertical pressure belt slider; the indentation assembly is connected to the bottom end of the vertical pressure belt support plate. The vertical pressure belt cylinder is fixed on the portal frame, and the vertical pressure belt support plate is connected to the piston rod of the vertical pressure belt cylinder.

5. The mask production line according to claim 4, wherein Two guiding inclined plates are provided on the portal frame, and the two guiding inclined plates are symmetrically distributed on the opposite sides of the conveying mechanism. The guiding inclined plate includes a guiding inclined surface which is inclined downward so that a part of the guiding inclined surface is located below the material placing surface of the conveying mechanism, and another part of the guiding inclined surface is located above the material placing surface of the conveying mechanism. The middle part of the guiding inclined surface has a guiding plane which is located at the edge of the guiding inclined plate close to the conveying mechanism and above the material placing surface of the conveying mechanism; the guiding plane is flush with the top surface of the bottom pushing head or located above the top surface of the bottom pushing head.

6. The mask production line according to claim 2, wherein, The mask folding device further includes a material input conveying part, and the discharge end of the material input conveying part faces above the material staying part. The material input conveying part includes two input part side plates arranged at intervals. Two groups of conveyor belt mechanisms are provided on the input part side plates. The conveyor belt mechanism includes a plurality of conveyor belt wheels arranged on the input part side plates and an input conveyor belt sleeved on the plurality of conveyor belt wheels. At least one of the plurality of conveyor belt wheels is connected to an input part motor. The input conveyor belts of the two groups of conveyor belt mechanisms on the input part side plates are arranged in parallel and have a conveying gap. The conveying gaps between the conveyor belt mechanisms on the two input part side plates are arranged in parallel and are located above the placing surface.

7. The mask production line according to claim 6, wherein, The mask folding device further includes a material output conveying part, and the feeding end of the material output conveying part is located below the folding opening. The material output conveying part includes two output part side plates arranged at intervals. At least two conveyor roller groups are provided between the two output part side plates. Each conveyor roller group includes a plurality of conveyor rollers and an output conveyor belt sleeved on the plurality of conveyor rollers. An output channel is formed between two adjacent conveyor belts and the two output part side plates. At least one of the plurality of conveyor rollers is connected to an output part motor. The output channel has a vertically arranged head channel, and the top end of the head channel has a channel inlet which is directly opposite to the lower part of the folding opening.

8. The mask production line according to claim 7, characterized in that, The mask folding device further includes a position correction part. The position correction part includes a correction telescopic device and a correction push plate. One of the correction telescopic devices is provided on each side of the two guiding plates away from the folding opening. A correction push plate is connected to each of the two correction telescopic devices, and the two correction telescopic devices can drive the correction push plates connected thereto to approach or move away from each other.

9. The mask production line according to claim 2, wherein, The sliding mechanism includes a pulling belt partial slide rail and a sliding seat arranged on the pulling belt partial slide rail, and the movable gripper is connected to the sliding seat; The cutting part further includes a suspension, the suspension is located above the conveying mechanism, the scissors are connected to the suspension and the direction of the cutting edge of the scissors is downward; two blocking bars are arranged at the bottom end of the suspension, and the two blocking bars are respectively located above both sides of the conveying mechanism.

10. The mask production line according to any one of claims 1-9, characterized in that, The conveying mechanism includes a conveyor belt, conveying rollers, a conveying seat and a conveying motor; The number of the conveying rollers is two, and the two conveying rollers are respectively located on the front and rear sides of the portal frame; one conveying seat is arranged at each end of the conveying roller, the conveying seat is connected to the upper end of the bottom plate, and the two ends of the conveying roller are rotatably connected to the bearings of the conveying seat; The conveyor belt is sleeved on the two conveying rollers, and the conveying motor is connected to the conveying roller through a pulley mechanism and can drive the conveying roller to rotate.

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