CN112932004A

CN112932004A - Technology for processing respirator with outer edge wrapping of earlap

Info

Publication number: CN112932004A
Application number: CN202110217790.9A
Authority: CN
Inventors: 刘菁
Original assignee: Hubei Yulin Automation Equipment Co ltd
Current assignee: Hubei Yulin Automation Equipment Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-06-11

Abstract

The application relates to a technique for processing ear-band edge-wrapping mouth mask, which relates to the field of mouth mask production and comprises the following steps: preparing a sheet body: clamping the melt-blown fabric between two layers of non-woven fabrics, and forming a single mask sheet body after sheet forming; ear band welding: ear bands are symmetrically welded at two ends of the sheet body in the length direction by using an ear band welding part in an ear band outer edge-wrapping welding system; the ear belt is turned over: folding the ear belt to the surface body of the sheet body by using a folding ear part in an ear belt outer edge-wrapping welding system; correcting the ear belt: aligning the part of the ear belt positioned on one side of the advancing direction of the sheet body by using an ear belt aligning part in an ear belt outer edge-wrapping welding system; edge wrapping of the mask: and (3) using a wrapping part in the ear belt outer wrapping welding system to wrap the side edge of the sheet body, on which the ear belt is welded. This application has the effect that promotes gauze mask production efficiency, promotion gauze mask quality.

Description

Technology for processing respirator with outer edge wrapping of earlap

Technical Field

The application relates to the field of mask processing production, in particular to a technology for processing an ear band edge-wrapping mask.

Background

Common gauze masks in the market generally divide into two main categories, one kind is that the ear area is in the gauze mask and bordures in the outside of borduring, and the other kind is that the ear area is in the gauze mask and bordures inboard promptly the ear outband and bordures, and ear area outsourcing gauze mask is for the gauze mask of borduring in the ear area, and the ear area is more inseparable with gauze piece is connected, and life is longer relatively.

Aiming at the production method of the ear belt outer edge-covered mask related in the related art, the inventor thinks that the following defects exist: in the process of edge covering after the ear belt is welded, the ear belt needs to be turned over on the sheet body, and in order to ensure the quality of the produced mask, the edge of the edge covering of the ear belt and the sheet body needs to be right opposite, so that the position of the ear belt in the edge covering after edge covering can not be deviated. Often adopt the mode that sweeps to adjust the ear area position among the correlation technique, but the controllable degree of wind-force is little, and simultaneously, great wind-force still can blow the lamellar body off the production line, and how high-efficient production ear area is out of band and is bordured the gauze mask, improves production efficiency and ensures the quality of gauze mask, is a problem that awaits the opportune moment and solve.

Disclosure of Invention

In order to ensure the production quality of gauze mask when the gauze mask of borduring is taken out at high-efficient production ear, this application provides an ear area outsourcing gauze mask processing technology.

The application provides a pair of ear area outsourcing border gauze mask processing technology adopts following technical scheme:

a technology for processing an ear band outer edge covering mask comprises the following steps: preparing a sheet body: clamping the melt-blown fabric between two layers of non-woven fabrics, and forming a single mask sheet body after sheet forming;

ear band welding: ear bands are symmetrically welded at two ends of the sheet body in the length direction by using an ear band welding part in an ear band outer edge-wrapping welding system;

the ear belt is turned over: folding the ear belt to the surface body of the sheet body by using a folding ear part in an ear belt outer edge-wrapping welding system;

correcting the ear belt: aligning the part of the ear belt positioned on one side of the advancing direction of the sheet body by using an ear belt aligning part in an ear belt outer edge-wrapping welding system;

edge wrapping of the mask: edge covering is carried out on the side edges of the sheet body welded with the ear belts by using edge covering parts in an ear belt outer edge covering welding system;

the correcting part in the ear band outside edge covering system related in the ear band correcting step comprises:

the correcting mechanism is used for correcting the ear belt attached to the sheet body;

the correcting mechanism comprises a second bracket, a plurality of press wheels arranged on the second bracket and a seventh driving device for driving one of the press wheels to rotate;

the pressing wheel connected with the seventh driving device is abutted against the ear belt attached to the sheet body; when the sheet body is in the stage of the ear belt welding step, the seventh driving device drives the pinch roller to rotate and stops before the sheet body starts to move;

in the moving direction of the sheet body, the correcting mechanism is positioned in front of the edge covering part in the ear belt outer edge covering welding system.

Through adopting above-mentioned technical scheme, at the ear area welding process, lamellar body stop motion, thereby seventh drive arrangement drive pinch roller rotates and drives the ear area motion to right the ear area, played the effect that does not influence the lamellar body position when dialling the ear area, ensured the in-process of the continuous high-efficient production of gauze mask, improved the quality of gauze mask production.

Optionally, the welding portion of the ear strap outer edge sealing system involved in the ear strap welding step includes:

a work table;

the first bracket is fixed on the workbench;

the sliding table is arranged on the first bracket and is in sliding connection with the first bracket; the two sliding tables are symmetrically arranged on the first support by taking the conveying direction of the sheet body as a symmetry axis;

the first driving device is arranged on the workbench or the first support and is used for driving the sliding table to do reciprocating lifting motion along the first support;

the two second driving devices are arranged on the sliding table;

the clamping arms are arranged on the second driving device and used for clamping the ear belt, and the two clamping arms can swing towards a direction close to or away from each other;

the stretching mechanism is arranged on the workbench and used for fixing the ear belt below the clamping arm;

the cutting mechanism is used for cutting the eartape at a fixed length in cooperation with the stretching mechanism;

and the first welding mechanism is arranged on the workbench and used for welding the ear belt on the sheet body.

Through adopting above-mentioned technical scheme, two centre gripping arms can clip the both ends of ear area, then swing simultaneously at the in-process that removes, move the both ends of ear area to the welding department on the lamellar body and weld, and after the welding was accomplished, the ear area was laminated on the lamellar body under the effect of guide board, and the production process is more continuous, and production efficiency is also higher.

Optionally, the ear folding part in the ear band outer edge-wrapping welding system involved in the ear band folding step includes:

the guide plate is positioned on one side, close to the sheet body, of the clamping arm and arranged on the first support, and one end of the guide plate in the length direction extends along the moving direction of the sheet body;

and the guide plate is arranged at the suspended end of the guide plate on one side of the advancing direction of the sheet body and is used for enabling the ear belt to be attached to the sheet body.

Through adopting above-mentioned technical scheme, can restrict the removal orbit of ear area, avoid it to influence other production processes, simultaneously, also be convenient for carry on subsequent ear area turn over a book, dial processes such as just.

Optionally, the clamping arm includes a first clamping plate disposed on the second driving device, a guide post disposed on the first clamping plate, a second clamping plate slidably connected to the guide post, and a third driving device disposed on the first clamping plate;

and the output end of the third driving device is connected to the second clamping plate and is used for driving the second clamping plate to slide along the guide post in a reciprocating manner.

Through adopting above-mentioned technical scheme, the mode of using the clamp to get realizes taking fast of ear area and puts, helps improving the production speed of gauze mask.

Optionally, a protrusion is arranged on the first clamping plate, and a groove matched with the protrusion is arranged on the second clamping plate.

Through adopting above-mentioned technical scheme, help improving the ear area and press from both sides the stability of getting the in-process, avoid appearing the condition of ear area landing between first splint and the second splint.

Optionally, the guide plate comprises a connecting portion for being fixedly mounted in an ear strap outer edge welding system, a transition portion provided on the connecting portion, and a guide portion provided on the transition portion;

the guide part extends along the advancing direction of the upper sheet body of the workbench;

the transition part is provided with a limiting plate, and the limiting plate is positioned above the guide part and inclines to a position far away from the sheet body.

Optionally, the stretching mechanism includes a guide table disposed on the working table, a channel disposed in the guide table, a sliding table disposed on the working table, a sliding block slidably connected to the sliding table, a fourth driving device for driving the sliding block to slide on the sliding table in a reciprocating manner, and a clamping device disposed on the sliding block;

the sliding block can slide towards the direction far away from or close to the guide table.

Through adopting above-mentioned technical scheme, clamping device can pull out the ear area from the passageway along with slider reciprocating sliding's in-process, and the cooperation shutdown mechanism realizes carrying out the fixed length to the ear area and cuts off.

Optionally, the device further comprises a pressure plate arranged in the channel and a fifth driving device arranged on the guide table;

the output end of the fifth driving device is connected with the pressing plate and is used for driving the pressing plate to reciprocate in the sliding block;

the pressure plate can press the ear belt on the inner wall of the channel in the moving process.

Through adopting above-mentioned technical scheme, the clamp plate can press the ear area on the inner wall of passageway at the in-process that removes, avoids the ear area to be kick-backed after being cut off, influences tensile ear area next time.

Optionally, the clamping device includes a first clamping portion disposed on the slider, a second clamping portion slidably connected to the slider, and a sixth driving device disposed on the slider;

the sixth driving device is used for driving the second clamping part to move towards the direction close to or far away from the first clamping part.

Optionally, in the step of correcting the ear belt, the rotating speed of the seventh driving device is 20 to 45r/s when the ear belt is corrected, and the driving time of the seventh driving device is 1 to 1.2 s.

By adopting the technical scheme, the inclined side of the ear belt is rightly dialed due to the rotating speed of the seventh driving device, the driving time of the seventh driving device ensures that the ear belt is stopped before the sheet body moves, and the dislocation of the ear belt when the seventh driving device continuously drives the pressing wheel to rotate is avoided.

Drawings

FIG. 1 is a schematic process flow diagram of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic perspective view of a clamp arm according to an embodiment of the present application;

FIG. 4 is a schematic perspective view of a stretching mechanism in an embodiment of the present application;

FIG. 5 is a schematic perspective view of a cutting mechanism in an embodiment of the present application;

FIG. 6 is a schematic perspective view of the guide plate and the guide plate in the embodiment of the present application;

FIG. 7 is a schematic perspective view of a taping mechanism in an embodiment of the present application;

fig. 8 is a schematic perspective view of a correcting mechanism, a third support, a pressing wheel and a belt in an embodiment of the present application.

Reference numerals: 1. a work table; 2. a first bracket; 3. a sliding table; 4. a first driving device; 5. a second driving device; 6. a clamp arm; 61. a first splint; 62. a guide post; 63. a second splint; 64. a third driving device; 65. a protrusion; 66. a groove; 7. a stretching mechanism; 71. a guide table; 72. a channel; 73. a sliding table; 74. a slider; 75. a fourth drive device; 76. a clamping device; 77. pressing a plate; 8. a guide plate; 81. a connecting portion; 82. a transition portion; 83. a guide portion; 84. a limiting plate; 9. a cutting mechanism; 10. a guide plate; 11. a binding mechanism; 111. a guide groove; 112. a second welding mechanism; 12. a second bracket; 13. a pinch roller; 14. a seventh driving device; 15. a first welding mechanism; 16. a third support; 17. a pinch roller; 18. a belt.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a technology for processing an ear belt outer edge covering mask. Referring to fig. 1, the ear belt outer edge covering mask processing technology comprises the following steps:

s1: the piece body is prepared, and the melt-blown cloth clamp is arranged between two layers of non-woven fabrics, so that the three layers are overlapped together to obtain a continuous strip-shaped mask piece body, the step is usually realized by using a mask piece making machine in a specific production process, and the mask piece making machine can produce required mask piece bodies.

S2: ear belt welding, wherein ear belts are symmetrically welded at two ends of the sheet body in the length direction by using an ear belt welding part in an ear belt outer edge-wrapping welding system;

s3: the ear belt is folded, and the ear belt is folded to the surface body of the sheet body by using a folding ear part in an ear belt outer edge-wrapping welding system;

s4: correcting the ear belt: aligning the part of the ear belt positioned on one side of the advancing direction of the sheet body by using an ear belt aligning part in an ear belt outer edge-wrapping welding system;

s5: edge wrapping of the mask: and (3) using a wrapping part in the ear belt outer wrapping welding system to wrap the side edge of the sheet body, on which the ear belt is welded.

Referring to fig. 2, the ear band outer edge covering welding system used in the above steps mainly includes a work table 1, a first bracket 2, a slide table 3, a first driving device 4, a second driving device 5, a clamping arm 6, a stretching mechanism 7, a cutting mechanism 9, a first welding mechanism 15, a guide plate 8, a guide plate 10, a correcting mechanism, an edge covering mechanism 11, and the like.

The worktable 1, the sliding table 3, the first driving device 4, the second driving device 5, the clamping arm 6, the stretching mechanism 7, the cutting mechanism 9 and the first welding mechanism 15 jointly form an ear band welding part in the ear band welding step. The guide plate 8 and the guide plate 10 together constitute an ear band turning part in the ear band turning step. The ear band correcting action in the ear band correcting step is realized by the correcting mechanism, and then the sheet body is conveyed to the edge covering mechanism 11 to carry out the ear band outer edge covering operation on the sheet body.

The workbench 1 is used for supporting and transporting the sheet body, and when the welding step is carried out, the sheet body on the workbench 1 is in a static state. The first support 2 is arranged on the workbench 1, provides a stable working environment for the sliding table 3, the first driving device 4, the second driving device 5, the clamping arm 6 and the like, and the stretching mechanism 7 is positioned right below the clamping arm 6 and is matched with the action of the cutting mechanism 9 to cut the earlap in a fixed length.

In the actual production process, a coiled ear belt is placed on a support, one end of the ear belt is pulled out, the ear belt penetrates through a guide ring and is sent into a stretching mechanism 7, after the ear belt is stretched in the stretching mechanism 7, two clamping arms 6 clamp two ends of the ear belt, then the ear belt is cut by a cutting mechanism 9, and the ear belt is clamped by the clamping arms 6 and then is conveyed to the upper side of a sheet body and finally is welded on the sheet body.

The sliding table 3 is installed on the first support 2, the sliding table 3 is connected with the first support 2 in a sliding mode, the sliding table 3 can ascend and descend on the first support 2, the ascending and descending power of the sliding table 3 is derived from the first driving device 4, and the first driving device 4 can be installed on the workbench 1 or the first support 2.

In some possible embodiments, the first driving device 4 uses an electric cylinder or an air cylinder, and for the purpose of driving the sliding table 3 to ascend and descend, the electric cylinder or the air cylinder should be fixedly installed on the working table 1 or the first bracket 2, and a piston rod of the electric cylinder or the air cylinder should be connected with the sliding table 3, so that during the telescopic reciprocating of the electric cylinder or the air cylinder, the piston rod can pull the sliding table 3 to ascend and descend reciprocally on the first bracket 2.

Two driving devices are fixedly arranged on the sliding table 3, a clamping arm 6 is arranged at the output end of each driving device, and the second driving device 5 can drive the clamping arm 6 to swing towards or away from each other in the working process.

In some possible embodiments, the second driving device 5 uses a rotary cylinder, a servo motor or a step motor, the cylinder body of the rotary cylinder, the servo motor or the step motor are all fixedly installed on the horizontal plane of the sliding table 3, the clamping arm 6 is fixedly installed at the output end of the rotary cylinder, the servo motor or the step motor, after the clamping arm 6 clamps the ear strap, the sliding table 3 is lifted by the first driving device 4, the clamping arm 6 is driven to rotate by the second driving device 5, so that the ear strap is placed on the sheet body, and finally the ear strap is welded on the sheet body.

Referring to fig. 3, the clamp arm 6 is composed of a first clamp plate 61, a guide post 62, a second clamp plate 63, a third driving device 64, etc., the third driving device 64 is fixedly installed on the output end of the second driving device 5, the first clamp plate 61 is fixedly connected to the driving device, and the second clamp plate 63 is installed on the output end of the third driving device 64 and is slidably connected with the guide post 62 fixed on the first clamp plate 61. The second jaw 63 is capable of reciprocating relative to the first jaw 61 to clamp the ear band.

In a preferred embodiment, the third driving device 64 is a cylinder, the cylinder body of the cylinder is fixedly mounted on the output end of the second driving device 5, the piston rod of the cylinder passes through the first clamping plate 61, the first clamping plate 61 is fixedly connected with the cylinder body of the cylinder, the second clamping plate 63 is fixedly connected with the piston rod of the cylinder, the guide post 62 is fixed on the first clamping plate 61 and slidably connected with the second clamping plate 63, and when the piston rod of the cylinder extends and contracts, the first clamping plate 61 and the second clamping plate 63 are folded or separated.

In other embodiments of the present application, the cylinder may be replaced with an electric cylinder.

Furthermore, a protrusion 65 is arranged on the first clamping plate 61, a groove 66 is arranged on the second clamping plate 63, the protrusion 65 and the groove 66 are matched, when the clamping arm 6 clamps the ear belt, the ear belt is just positioned in the groove 66, and the ear belt is prevented from sliding off when the first clamping plate 61 and the second clamping plate 63 are closed.

In the process that the clamping arm 6 is lifted and swung, the stretching mechanism 7 works simultaneously to stretch and straighten the ear belts to be used next time for preparation, because the preparation and welding processes of the ear belts are staggered, the clamping arm 6 can achieve the maximization of the working efficiency, and the time interval between the two processes can be shortened, so that the maximization of the working efficiency is achieved.

Referring to fig. 4, the stretching mechanism 7 is composed of a guide table 71, a sliding table 73, a slider 74, a fourth driving device 75 and a clamping device 76, the guide table 71 is installed on the workbench 1, a channel 72 is arranged in the guide table 1, the channel 72 penetrates through the guide table 71, the length direction of the channel 72 is the same as the moving direction of the sheet body, and the ear band is arranged in the channel 72 in a penetrating manner.

The sliding table 73 is also fixedly arranged on the workbench 1, the sliding block 74 is slidably arranged on the sliding table 73, and the reciprocating sliding direction of the sliding block 74 is parallel to the moving direction of the sheet body.

The sliding table 73 is aligned with the guide table 71, the sliding block 74 can slide in a direction away from or close to the guide table 71, and the fourth driving device 75 is used for driving the sliding block 74 to slide.

In a preferred embodiment of the present application, the fourth driving device 75 is composed of a servo motor, a driving wheel installed on the servo motor, a cantilever installed on the worktable 1, a driven wheel installed on the cantilever, and a synchronous belt wound around the driving wheel and the driven wheel, the synchronous belt is fixedly connected to the sliding block 74, when the servo motor rotates, the moving synchronous belt can drive the sliding block 74 to slide on the sliding table 73, and the servo motor can rotate forward and backward according to a set current signal, so as to achieve the purpose of driving the sliding block 74 to reciprocate on the sliding table 73.

In other embodiments of the present application, the synchronous belt may be replaced by a rack, a gear is installed on the servo motor, the gear is engaged with the rack, and the rack is fixedly connected to the sliding block 74, so as to achieve the purpose of driving the sliding block 74 to slide on the sliding table 73 in a reciprocating manner.

The clamping device 76 is mounted on the slider 74 and can reciprocate with the slider 74, when the clamping device 76 moves with the slider 74 to the guide table 71, the clamping device 76 clamps the ear strap extending out of the channel 72, when the clamping device 76 moves with the slider 74 and moves away from the guide table 71, the clamping device 76 pulls the ear strap to pull out the ear strap for a distance, and because the moving distance of the slider 74 is constant, when the ear strap is cut off, the fixed-length cutting of the ear strap is realized.

The gripping device 76 is comprised of three parts, a first gripping portion, a second gripping portion, and a sixth driving device mounted on the slider 74 for driving the second gripping portion to move toward or away from the first gripping portion.

In one embodiment of the present application, the entire clamping device 76 may be a jaw cylinder, the first clamping portion and the second clamping portion being two jaws of the jaw cylinder, respectively; in other embodiments of the present application, the sixth driving device may be an air cylinder or an electric cylinder, a cylinder body of the air cylinder or the electric cylinder is fixedly installed on the sliding block 74, the first clamping portion is fixedly connected to the sliding block 74, the second clamping portion is fixedly connected to a piston rod of the air cylinder or the electric cylinder, and when the piston rod of the air cylinder or the electric cylinder extends and contracts, the first clamping portion and the second clamping portion can be driven to approach or separate from each other.

When the clamping device 76 is close to the ear strap extending out of the passage 72, the sixth driving device drives the second clamping portion to be close to the first clamping portion, so that the ear strap is clamped, and as the ear strap has certain elasticity, in order to avoid that the ear strap rebounds into the passage 72 after being cut off or the length of the part appearing outside the passage 72 is not enough, so that the clamping portion cannot clamp the ear strap, and the production continuity is finally affected, the pressing plate 77 is arranged in the passage 72, and the fifth driving device is arranged on the guide table 71.

The pressing plate 77 is located in the channel 72 and is slidably connected with the guide table 71, the sliding direction of the pressing plate 77 is perpendicular to the moving direction of the sheet body, the sliding power of the pressing plate 77 is provided by the fifth driving device, the output end of the fifth driving device extends into the channel 72 and is fixedly connected with the pressing plate 77, when the clamping device 76 clamps and pulls the ear belt after clamping the ear belt, the pressing plate 77 and the inner wall of the channel 72 keep a sufficient distance so that the ear belt can move smoothly, when the cutting mechanism 9 is ready to cut off the ear belt, the fifth driving device drives the pressing plate 77 to abut against one inner wall of the channel 72, and the ear belt is clamped through the pressing plate 77 and the inner wall of the channel 72, so that the residual ear belt after cutting is prevented from rebounding to the channel 72.

In a possible embodiment, the fifth driving device uses an electric cylinder or an air cylinder, a cylinder body part of which is fixedly mounted on the guide table 71, a piston rod of which extends into the channel 72 and is connected to the pressure plate 77, and the piston rod can drive the pressure plate 77 to slide back and forth in the channel 72 during the reciprocating motion.

Referring to fig. 5, when the pressing plate 77 presses the ear strap against the inner wall of the passage 72, the cutting mechanism 9 cuts the ear strap, and the cutting mechanism 9 is specifically driven by the servo motor through a link rod.

Since the shape of the ear strap is changed during the cutting and welding, and the ear strap is stretched straight during the cutting, the ear strap is stretched straight when the holding arm 6 initially holds the ear strap, and after the holding arm 6 is rotated by the second driving device 5, the two ends of the cut ear strap in the length direction approach each other, so that the flexible ear strap is changed into an arc shape.

Referring to fig. 6, to prevent the middle part of the curved ear strap from moving onto the blade under its own resilience to affect the subsequent welding process, a guide plate 8 is used to ensure that the middle part of the ear strap is located on both sides of the blade during welding.

The deflector 8 is located the one side that centre gripping arm 6 is close to the lamellar body, and deflector 8 fixed mounting is on first support 2, and the moving direction of material extends on workstation 1 is followed to the one end of deflector 8 length direction. The guide plate 8 consists of three parts, a connecting part 81, a transition part 82 and a guide part 83, which are integrally formed, the connecting part 81 is fixedly connected with the first bracket 2, the guide part 83 extends in the moving direction of the material on the working table 1 and is fixedly connected with the guide plate 10 at the end far from the fixing part, and the transition part 82 is positioned between the connecting part 81 and the guide part 83.

Since the guide plate 8 is located on the side of the holding arm 6 close to the sheet body, when the holding arm 6 takes the rotation of the ear band, the middle portion of the ear band hangs down under the action of gravity, and in order to enable the guide portion to intercept the middle portion of the ear band, the guide plate 8 is located below the holding arm 6. Meanwhile, in order to improve the intercepting effect of the ear belt, in the moving direction of the material on the workbench 1, the length of the transition part 82 is limited and is smaller than that of the cut ear belt, otherwise, the situation that the ear belt is clamped on the transition part 82 in the rotating process of the clamping arm 6 occurs.

After the ear belt is obtained by the clamping arm 6, the second driving device 5 drives the clamping arm 6 to rotate, the middle part of the ear belt is intercepted by the transition part 82, when the two ends of the ear belt are welded on the sheet body and the sheet body continues to move on the workbench 1, a certain gap must exist between the guide plate 8 and the workbench 1, so that the ear belt welded on the sheet body is sleeved on the transition part 82 and sleeved on the guide part 83 in the later moving process, and the subsequent ear folding process is facilitated.

Meanwhile, in order to enhance the function of the transition portion 82 for intercepting the ear belt, a stopper 84 is added to the transition portion 82, and the stopper 84 is fixedly connected with the connecting portion 81 and is positioned above the guiding portion 83. In this embodiment, limiting plate 84 is the bent plate of smooth bending, and the bending part of limiting plate 84 is towards centre gripping arm 6, and when centre gripping arm 6 rose and rotated, the earlap contacted earlier and slided along limiting plate 84 with the curved surface of limiting plate 84, and the camber of fairing makes limiting plate 84 can not be held by the earlap card owner, and the bending part of limiting plate 84 plays the effect of sheltering from to the earlap simultaneously, avoids centre gripping arm 6 at the in-process of quick rotation, and the earlap swing is failed to overlap and is established on guide portion 83.

After the ear strap is placed on the lamellar body, first welding mechanism 15 welds the ear strap on the lamellar body, and the welding mode of gauze mask has welding modes such as ultrasonic welding, and first welding mechanism 15 can be for installing the ultrasonic welding machine on first support 2.

After the welding is accomplished, lamellar body and ear area remove together, and the ear area landing from deflector 8, then laminate gradually on the lamellar body in the contact process with guide board 10, when carrying out next ear area welding process, dial positive mechanism and dial the ear area just. In this process summary, the edging continuously gets into guide slot 111 to take place deformation in guide slot 111, finally laminate in the both sides of lamellar body. Finally, the edge sealing and the sheet body enter the second welding mechanism 112, and the edge covering process is completed.

The process of folding the ear belt is realized by guide board 10, and guide board 10 specifically is the board of a curved surface or crooked steel wire, and the face that guide board 10 and ear belt contact becomes the working face, and for the convenience of description, the one end that will guide board 10 is close to deflector 8 becomes the input, and the other end is called the output. In the direction by input to output, the distance between the working face of guide board 10 and the lamellar body tends to reduce, like this when the ear strap with the contact back of the working face of guide board 10, the ear strap can take place deformation gradually along with guide board 10, finally laminate on the lamellar body.

The length direction of the guide plate 10 extends along the advancing direction of the sheet body and is always to the sheet body pressed by the ear belt before the discharge of the mask.

Because the frictional force that exists between ear area and the guide board 10, after the ear area slides on guide board 10 and laminates with the lamellar body gradually, the welding point of ear area is not just to the edge that the lamellar body needs to bordure for ear area after borduring is fixed on the lamellar body with the skew form at first, finally leads to the unsatisfactory operation requirement of gauze mask of production, in order to avoid the production of this condition, dial the ear area through dialling positive mechanism, make the welding point of ear area just right with the edge that the lamellar body needs to bordure.

Referring to fig. 8, the correcting mechanism is composed of a second support 12, a plurality of pressing wheels 13 and a seventh driving device 14, the second support 12 is fixed on the workbench 1, the second support 12 is located between the first support 2 and the edge covering mechanism 11 in the advancing direction of the sheet body on the workbench 1, the pressing wheels 13 are provided with a plurality of pressing wheels and are all connected with the second support 12 in a rotating manner, and the seventh driving device 14 is fixedly installed on the second support 12 and used for driving the pressing wheels 13 to rotate.

In a possible embodiment, the seventh driving device 14 may be composed of a servo motor, a driving wheel connected to an output end of the servo motor, a driven wheel coaxially fixed to one of the pressing wheels 13 through a transmission shaft, and a synchronous belt sleeved outside the driving wheel and the driven wheel, wherein when the servo motor rotates, the synchronous belt drives the driven wheel and further drives one of the pressing wheels 13 to rotate.

In the process of welding the ear belts, the pressing wheel 13 which can be driven by the seventh driving device 14 is abutted against one end of the ear belts on the sheet body, which is close to the advancing direction of the sheet body, at the moment, the seventh driving device 14 drives the pressing wheel 13 to rotate, and the ear belts are straightened when the pressing wheel 13 rotates.

When the ear belt is straightened, the rotating speed of the seventh driving device 14 is 20-45 r/s, the driving time of the seventh driving device 14 is 1-1.2 s, and the welding time of the ear belt is about 2s, so that the rotating speed and the driving time of the seventh driving device 14 are matched with the static time of the sheet body, the inclined side of the ear belt is righted just, the sheet body is stopped before moving, and the ear belt is prevented from being misplaced under continuous rotation.

Referring to fig. 7, the edge covering mechanism 11 is composed of two parts, which are respectively a guide groove 111 fixed on the workbench 1 and a second welding mechanism 112 fixed on the workbench 1, the guide groove 111 is used for wrapping the edge of the sheet body by the edge sealing, and the second welding mechanism 112 is used for welding the edge sealing and the sheet body together. In one possible embodiment of the present application, the second welding mechanism 112 also employs an ultrasonic welding machine.

Referring to fig. 2 and 8, because ultrasonic welding machine pressurizes the edge of lamellar body in welding process, easily lead to the lamellar body to take place the dislocation, in order to compress tightly the lamellar body, fixed mounting has third support 16 on the workstation 1, it is connected with a plurality of pinch rollers 17 to rotate on the third support 16, along the direction of advance of lamellar body on workstation 1, pinch roller 17 is located behind the mechanism 11 of borduring, there is the gap between pinch roller 17 and the workstation 1, this gap is less than the thickness of lamellar body.

Because pinch roller 13 and pinch roller 17 are itself great to the frictional force of lamellar body, consequently cover a plurality of pinch rollers 13 and pinch roller 17 simultaneously through belt 18 and establish, when the lamellar body motion, seventh drive arrangement 14 rotates with one of them pinch roller 13 of the rotational speed drive the same with lamellar body forward velocity to make belt 18 also take place to rotate, produce too big frictional force when avoiding compressing tightly the lamellar body. When the blade stops moving during welding, the seventh drive 14 remains rotating, thereby setting the ear band upright and the seventh drive 14 is deactivated before the blade moves.

The implementation principle of the ear zone outsourcing welding system and the gauze mask machine that utilizes this system of this application embodiment is:

in the production process of the mask, the method comprises the following steps:

S2: after the clamping arm 6 clamps the ear belt, the fifth driving device drives the sheet body to tightly abut the ear belt against the inner wall of the channel 72, the cutting mechanism 9 cuts off the ear belt, and when the clamping arm 6 drives the ear belt to be placed on the sheet body and welded through the first welding mechanism 15, the stretching mechanism 7 prepares the next section of ear belt, so that the welding process and the ear belt preparation process are carried out simultaneously, and the efficiency of the welding process is improved;

s3: the ear belt is turned over, the welded ear belt is sleeved on the guide plate 8 and is finally sleeved on the guide plate 10 along with the movement of the sheet body, and the ear belt is finally attached to the sheet body under the guide of the guide plate 10;

s4: the ear belt is straightened, the seventh driving device 14 drives the pressing wheel 13 to rotate, and the ear belt is straightened through the belt 18, so that the welding point of the ear belt is opposite to the edge of the belt edge of the sheet body, and the quality of the mask after edge wrapping is ensured;

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The processing technology of the ear belt outer edge covering mask is characterized by comprising the following steps:

preparing a sheet body: clamping the melt-blown fabric between two layers of non-woven fabrics, and forming a single mask sheet body after sheet forming;

the correcting mechanism comprises a second bracket (12), a plurality of press wheels (13) arranged on the second bracket (12) and a seventh driving device (14) for driving one of the press wheels (13) to rotate;

a pressing wheel (13) connected with the seventh driving device (14) is abutted against the ear belt attached to the sheet body; when the sheet body is in the stage of the ear belt welding step, a seventh driving device (14) drives the pressing wheel (13) to rotate and stops the seventh driving device (14) before the sheet body starts to move;

2. The process of claim 1, wherein the welding portion of the ear strap outer border welding system involved in the ear strap welding step comprises:

a table (1);

the first bracket (2) is fixed on the workbench (1);

the sliding table (3) is arranged on the first support (2) and is connected with the first support (2) in a sliding manner; the two sliding tables (3) are symmetrically arranged on the first support (2) by taking the conveying direction of the sheet body as a symmetry axis;

the first driving device (4) is arranged on the workbench (1) or the first support (2) and is used for driving the sliding table (3) to do reciprocating lifting motion along the first support (2);

two second driving devices (5) which are arranged on the sliding table (3);

the clamping arms (6) are arranged on the second driving device (5) and used for clamping the ear belt, and the two clamping arms (6) can swing towards or away from each other;

the stretching mechanism (7) is arranged on the workbench (1) and used for fixing the ear belt below the clamping arm (6);

the cutting mechanism (9) is used for cutting the eartape at a fixed length in cooperation with the stretching mechanism (7);

and the first welding mechanism (15) is arranged on the workbench (1) and is used for welding the ear belt on the sheet body.

3. The process of claim 1, wherein the ear strap outer border welding system comprises:

a guide plate (8) which is positioned at one side of the sheet body, and one end of the length direction of the guide plate extends along the moving direction of the sheet body;

and the guide plate (10) is arranged at the suspended end of the guide plate (8) on one side of the advancing direction of the sheet body and is used for enabling the ear belt to be attached to the sheet body.

4. The ear band outsourcing escutcheon processing technology of claim 2, wherein: the clamping arm (6) comprises a first clamping plate (61) arranged on a second driving device (5), a guide post (62) arranged on the first clamping plate (61), a second clamping plate (63) connected with the guide post (62) in a sliding manner, and a third driving device (64) arranged on the first clamping plate (61);

the output end of the third driving device (64) is connected to the second clamping plate (63) and used for driving the second clamping plate (63) to slide in a reciprocating mode along the guide post (62).

5. The ear band outsourcing escutcheon processing technology of claim 4, wherein: be equipped with arch (65) on first splint (61), be equipped with on second splint (63) with arch (65) assorted recess (66).

6. The ear band outsourcing escutcheon processing technology of claim 3, wherein: the guide plate (8) comprises a connecting portion (81) for (2) fixed mounting in an ear strap outer rim welding system, a transition portion (82) provided on the connecting portion (81), and a guide portion (83) provided on the transition portion (82);

the guide portion (83) extends along the advancing direction of the sheet on the work table (1);

a limiting plate (84) is arranged on the transition part (82), and the limiting plate (84) is located above the guide part (83) and inclines towards the direction far away from the sheet body (7).

7. The ear band outsourcing escutcheon processing technology of claim 2, wherein: the stretching mechanism (7) comprises a guide table (71) arranged on the workbench (1), a channel (72) arranged in the guide table (71), a sliding table (73) arranged on the workbench (1), a sliding block (74) connected with the sliding table (73) in a sliding manner, a fourth driving device (75) used for driving the sliding block to slide on the sliding table (73) in a reciprocating manner, and a clamping device (76) arranged on the sliding block (74);

the slider (74) is slidable in a direction away from or toward the guide table (71).

8. The ear band outsourcing escutcheon processing technology of claim 7, wherein: the device also comprises a pressure plate (77) arranged in the channel (72) and a fifth driving device arranged on the guide table (71);

the output end of the fifth driving device is connected with the pressure plate (77) and is used for driving the pressure plate (77) to reciprocate in the sliding block (74);

the pressure plate (77) is capable of pressing the ear strap against the inner wall of the channel (72) during movement.

9. The ear band outsourcing escutcheon processing technology of claim 8, wherein: the clamping device (76) comprises a first clamping part arranged on the sliding block (74), a second clamping part connected with the sliding block (74) in a sliding way, and a sixth driving device arranged on the sliding block (74);

10. The ear band outsourcing escutcheon processing technology of claim 1, wherein: in the step of correcting the ear belt, the rotating speed of the seventh driving device (14) is 20-45 r/s when the ear belt is corrected, and the driving time of the seventh driving device (14) is 1-1.2 s.