CN111616456A - Mask machine production line - Google Patents

Abstract

The invention relates to the field of mask production equipment, in particular to a mask production line which is suitable for producing masks which are worn by most people and have strong fitting property with the face of a user when being worn, and has high production efficiency.

Description

Mask machine production line

Technical Field

The invention relates to the field of mask production equipment, in particular to a mask machine production line.

Background

The mask is a sanitary article, generally has a certain filtering effect on air entering lung when being worn at the mouth and nose, has a good effect when being worn in an environment polluted by respiratory infectious diseases or dust and the like, is made of gauze or paper and the like, and respectively comprises an industrial mask, a civil mask and a medical mask according to different application fields. Wherein, medical protective facial mask technical requirement stirs, according to national standard GB 19083-2010 of the people's republic of China, its basic requirement is: the mask is a self-absorption filtering type medical protective mask which is suitable for filtering particles in air and blocking spray, blood, body fluid, secretion and the like in a medical working environment, and is required to cover the mouth and nose parts of a wearer, have good face sealing performance, avoid holes and stains on the surface and an exhalation valve. And the filtering efficiency of the mask to the non-oily particles is not less than 95 percent under the condition that the gas flow is 85L/min.

Most of masks sold in the existing market can meet the requirement that the filtering efficiency of non-oily particles is not less than 95% in detection, but the specification and the size of the masks are only divided into adult masks and child masks, and the testing instrument for testing is prepared and tested under the condition that the standard is met, and in the use of actual consumers, the shapes and the sizes of the faces of different users are different, so that the utility of the masks is different on each user.

In addition gauze mask mainly includes the cover body that is formed by melt-blown fabric, spun-bonded fabric complex and the ear area of being connected the person of facilitating the use and wearing with the cover body, and the cover body edge of gauze mask all is through ultrasonic wave or hot pressing banding, and its compliance is relatively poor for when wearing with the laminating nature of user's face poor, cause the gas tightness relatively poor.

Therefore, there is a need to develop a mask production line which is suitable for most people to wear and has strong fitting property with the face of a user when wearing, and has high production efficiency.

Disclosure of Invention

Therefore, in view of the above problems, the present invention provides a mask production line that is suitable for most people to wear, and that has a strong fit to the face of the user when worn, and that is highly efficient.

In order to achieve the purpose, the invention adopts the following technical scheme:

a mask machine production line comprises a frame, a control device arranged on the frame, an unreeling device, a pre-pressing edge cutting device, a cushion part forming device, a turning device, an ear belt discharging spot welding device, a folding device, an inclined sealing device, a cutting device, a nose bridge strip discharging and cutting device and a nose bridge strip welding and blanking device, wherein the pre-pressing edge cutting device comprises a pre-pressing edge cutting knife roller and a pre-pressing edge cutting bottom roller which are arranged on the frame, the pre-pressing edge cutting knife roller comprises a first rotating shaft, a first barrel body sleeved on the first rotating shaft and protective lips arranged on two axial sides of the first barrel body, at least one pair of arc-shaped cutters are arranged on the outer surface of the first barrel body in a surrounding mode, each pair of arc-shaped cutters comprises a first arc-shaped cutter and a second arc-shaped cutter which are symmetrically arranged by taking a middle point vertical to a central axis of the first barrel body as a symmetrical line, and a pressing block is, the thickness size of pressing the briquetting is less than the thickness size of arc cutter, pad portion forming device is including being used for the banding of the cover body and the pad portion bending roll perk banding mechanism and make the pad portion range upon range of the distribution and will just the welding mechanism that free limit and cover body are connected.

Further, the welding mechanism comprises a welding knife roll and a welding bottom roll which are rotationally arranged on the frame, the welding knife roll comprises a second rotating shaft and a second barrel body which is sleeved on the second rotating shaft, two first welding convex strips which are symmetrically arranged by taking the middle point of the central axis of the vertical to the second barrel body as a symmetry line are arranged on the second barrel body, at least one pad part arranging device is arranged on the second barrel body and positioned on the outer side of the periphery of the two first welding convex strips, a single pad part arranging device corresponds to one cover body, the pad part arranging device comprises a plurality of sliding grooves arranged on the second barrel body, each sliding groove is distributed along the axial direction of the second barrel body, the depth of the sliding groove is gradually increased from one axial end of the second barrel body to the center, a push-pull block and a spring are arranged in the sliding groove under the action of the spring and positioned on the outer axial side of the second barrel body, when external force acts on the push-pull block vertically along the radial direction of the second cylinder, the push-pull block slides along the sliding groove, when the push-pull block is positioned in the sliding groove and positioned at one end of the axial outer side of the second cylinder, the vertical distance between the outer end face of the push-pull block and the outer surface of the second cylinder is larger than the vertical distance between the welding face of the first welding convex strip and the outer surface of the second cylinder, and when the push-pull block is positioned at the other end of the sliding groove, the vertical distance between the outer end face of the push-pull block and the outer surface of the second cylinder is equal to the vertical distance between the welding face of the first welding convex strip and the outer surface of.

Further, banding mechanism is including rotationally locating banding rotor and the banding bottom roll in the frame, the banding rotor includes that third pivot and cover locate the third pivot epaxial third barrel, the third barrel includes that the mid point of its axis of perpendicular to is two second welding sand grips that are used for the horizontal both sides banding of the cover body that the symmetry set up as the symmetrical line with the mid point of its axis of perpendicular to, the axial outside that lies in second welding sand grip on the third barrel all is equipped with the third welding sand grip that is used for making the pad portion warp, the axial outside of third welding sand grip just is equipped with at least one fourth welding sand grip with third welding sand grip an organic whole, each fourth welding sand grip distributes along the axial direction of third barrel, the length and size 3 ~ 8mm of fourth welding sand grip.

Further, turning device is including being used for realizing first grip roll, the second grip roll of material clockwise rotation 45 in proper order to and be used for realizing material clockwise rotation 135 third grip roll, fourth grip roll and fifth grip roll, the contained angle between first grip roll and the horizontal plane is 15, the contained angle between second grip roll and the horizontal plane is 45, third grip roll and fifth grip roll are horizontal distribution, first grip roll, second grip roll, third grip roll, fourth grip roll and fifth grip roll, the distance between its two adjacent grip rolls increases gradually according to the assembly line direction in proper order.

Further, the ear belt discharging spot welding device comprises a first ear belt discharging spot welding mechanism and a second ear belt discharging spot welding mechanism which are arranged on two transverse sides, the first ear belt discharging spot welding mechanism and the second ear belt discharging spot welding mechanism are arranged in a staggered manner, the first ear belt discharging spot welding mechanism and the second ear belt discharging spot welding mechanism respectively comprise an ear belt discharging roller which is rotatably arranged on the frame, a rotating shaft which is vertically arranged on the frame and a driving motor which drives the rotating shaft to rotate, a mounting seat is arranged on the rotating shaft, a swing rod is detachably arranged on the mounting seat, a first driving cylinder is arranged at the free end of the swing rod, a fixed seat is arranged on an output shaft of the first driving cylinder, an ultrasonic welding device, an ear belt guiding and clamping device and an ear belt cutting device are arranged on the fixed seat, and the ear belt cutting device is arranged between the ultrasonic welding device and the ear belt guiding and clamping device and is used for cutting an ear belt, ear area direction clamping device drives actuating cylinder including locating the guide rail on the fixing base, locating slider on the guide rail and drive slider along the second of guide rail motion, be provided with the holding frame on the slider, be equipped with two grip blocks on the holding frame, be equipped with the centre gripping spring between grip block and the holding frame, make two grip blocks centre gripping in the ear area under the centre gripping spring effect.

Furthermore, device is cut to nose bridge strip blowing is including rotationally being equipped with nose bridge strip blowing roller, first centre gripping guide roller, second centre gripping guide roller and the nose bridge strip cutting mechanism in the frame, nose bridge strip cutting mechanism locates between first centre gripping guide roller and the second centre gripping guide roller, nose bridge strip cutting mechanism is including rotationally locating the branch cutter roller in the frame and cutting the bottom roll.

Furthermore, nose bridge strip welding unloader including connect in the slide bar of the output of device and the device output of cutting of nose bridge strip blowing, locate the cantilever on the slide bar and drive the cantilever through ball screw and follow the second driving motor of slide bar motion, the free end of cantilever is equipped with two grip blocks, two horizontal one side of grip block is articulated each other, drives its swing in opposite directions or opposite directions through drive arrangement, be equipped with the absorption hole on the grip block, the absorption hole is connected with negative pressure adsorption tank.

By adopting the technical scheme, the invention has the beneficial effects that: the mask machine production line realizes cutting of the edge of the pad part while prepressing the mask body, presses a longitudinal groove while sealing the edge of the mask body, and forms a certain shrinkage and hardening of the material of the mask body in the longitudinal groove pressing, so that the free edge of the mask body can be bent and tilted, and then forms a stacking arrangement and the edge of the pad part is welded with the mask body to form the pad part, so that the produced mask has the pad part, the mask production line has the advantages that the pad part can be propped open to form a bulk state, namely the thickness of the pad part is larger than that of the mask body, and the pad part is hollow and easy to mold, when a user wears the mask, the mask can better adapt to the facial structure and be tightly attached, the gap between the pad part and the mask body is reduced, the sealing performance is improved, the flow steps on the equipment are simplified, the conveying speed and the conveying stability of the material are improved, and the operating efficiency of the new equipment, the production efficiency is improved, and the sealing property of the produced mask is obviously improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a prepressing edge-cutting knife roll in the embodiment of the invention;

FIG. 3 is a schematic view of an expanded structure of a cylinder of a pre-pressing edge-cutting knife roller in the embodiment of the invention;

FIG. 4 is a schematic view of the edge banding knife roll in an embodiment of the present invention;

FIG. 5 is a schematic view of the unfolded structure of the cylinder of the edge banding knife roll in the embodiment of the present invention;

FIG. 6 is a schematic view of an expanded structure of a cylinder of the welding knife roll in the embodiment of the invention;

FIG. 7 is a flowchart of the operation of a welding knife roll in an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a turning device in an embodiment of the present invention;

FIG. 9 is a schematic structural view of an ear belt discharge spot welding device according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a holder according to an embodiment of the present invention;

FIG. 11 is a schematic structural view of a nose bridge strip discharging and cutting device and a nose bridge strip welding and blanking device in the embodiment of the invention;

fig. 12 is a schematic view showing a folded state of the mask according to the embodiment of the present invention;

fig. 13 is a schematic view of the mask of the present invention in a folded state without ear straps;

FIG. 14 is a schematic view of the distribution of the mask body in an uncut condition according to an embodiment of the present invention;

FIG. 15 is a schematic structural view of the cover in an unfolded state and the cushion portion in an embodiment of the present invention;

FIG. 16 is an enlarged view of a portion of FIG. 15 at A;

FIG. 17 is a schematic structural view of the cover body in an expanded state and the pad portion in a bent state according to the embodiment of the present invention;

fig. 18 is a partial enlarged view at B in fig. 17;

FIG. 19 is a schematic structural diagram of the mask body according to the embodiment of the present invention in a state where the mask body is connected and the holding pieces are not connected.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and detailed description.

The embodiment of the invention is as follows:

referring to fig. 1, a mask machine production line includes a frame, a control device disposed on the frame, and an unwinding device 100, a pre-pressing trimming device 200, a pad forming device 300, a turnover device 400, an ear band discharging spot welding device 500, a folding device 600, an inclined sealing device 700, a cutting device 800, a nose bridge strip discharging and cutting device 900, and a nose bridge strip welding and blanking device 110 disposed on the frame according to a production line, wherein the unwinding device 100, the pre-pressing trimming device 200, the pad forming device 300, the turnover device 400, the ear band discharging spot welding device 500, the folding device 600, the inclined sealing device 700, the cutting device 800, the nose bridge strip discharging and cutting device 900, and the nose bridge strip welding and blanking device 110 are electrically connected to the control device respectively to form control of each device, the material is unwound by the unwinding device 100, and the material is combined into a whole by the pre-pressing trimming device 200 and the edge of the pad 5 is cut, make arrangement of pad portion 5 form range upon range of setting and to its edge and cover 1 welded connection shaping through pad portion forming device 300, turning device 400 realizes the upper and lower upset of the steady of cover body 1, rethread ear area blowing spot welding device 500 realizes the both sides welding of ear area 2, fold cover body 1, and the slope opening part seals, form bowl-shaped structure when making cover body 1 expand, and cut out single cover body 1, device 900 is cut to the blowing of last bridge of the nose strip and bridge of the nose strip welding unloader 110 realizes the compound of bridge of the nose strip 3 and the unloading of the cover body, it is concrete:

the unwinding device 100 includes six material unwinding rollers disposed on the frame, and unwinds the surface layer spunbonded fabric, the middle layer meltblown fabric and the bottom layer spunbonded fabric, respectively.

Referring to fig. 2 and 3, the pre-pressing edge cutting device 200 includes a pre-pressing edge cutting knife roller 210 and a pre-pressing edge cutting bottom roller which are arranged on the frame, the pre-pressing edge cutting knife roller 210 includes a first rotating shaft 211, a first cylinder 212 which is sleeved on the first rotating shaft 211, and protection lips 213 which are arranged at two axial sides of the first cylinder 212, and surrounds the outer surface of the first cylinder 212 to form a pair of arc-shaped cutters, the arc-shaped cutters include a first arc-shaped cutter 214 and a second arc-shaped cutter 215 which are symmetrically arranged by taking a middle point of a central axis of the first cylinder 212 perpendicular to as a symmetry line, a pressing block 216 is arranged between the first arc-shaped cutter 214 and the second arc-shaped cutter 215, and the thickness of the pressing block 216 is smaller than that of the arc-shaped cutter.

Referring to fig. 4 and 5, the pad portion forming device 300 includes a sealing edge mechanism for bending and tilting the pad portion 1 and a welding mechanism for making the pad portion 5 stacked and distributed and connecting the free edge with the pad portion 1, the sealing edge mechanism includes a sealing edge knife roll 310 and a sealing edge bottom roll rotatably disposed on the frame, the sealing edge knife roll 310 includes a third rotating shaft 311 and a third cylinder 312 sleeved on the third rotating shaft 311, the third cylinder 312 includes two second welding protruding strips 313 symmetrically disposed and used for the edge sealing of the two lateral sides of the pad portion 1, the third cylinder 312 is disposed on the axial outer side of the second welding protruding strips 313 and is provided with a third welding protruding strip 314 for bending and tilting the pad portion 2, the axial outer side of the third welding protruding strips 314 is provided with three fourth welding protruding strips 315 integrally with the third welding protruding strips 314, each fourth welding rib 315 is distributed along the axial direction of the third cylinder 312, and the length dimension of each fourth welding rib 315 is 5 mm; the welding mechanism includes a welding knife roll 320 and a welding bottom roll rotatably disposed on the frame, as shown in fig. 6 and 7, the welding knife roll 320 includes a second rotating shaft, a second cylinder 321 sleeved on the second rotating shaft, two first welding protruding strips 322 symmetrically disposed on the second cylinder 321 with a midpoint perpendicular to a central axis thereof as a symmetry line, a pad arrangement device disposed around the second cylinder 321 and outside peripheral sides of the two first welding protruding strips 322, a single pad arrangement device corresponding to one cover body 1, the pad arrangement device including four sliding slots 323 disposed on the second cylinder 321, each sliding slot 323 being distributed along an axial direction of the second cylinder 321, a depth of the sliding slot 323 gradually increasing from an axial end of the second cylinder 321 to a center, a push-pull block 324 and a spring 235 being disposed in the sliding slot 323 under an action of the spring 325 and being located outside the second cylinder 321, when external force acts on the push-pull block 324 vertically along the radial direction of the second cylinder 321, the push-pull block 324 slides along the sliding groove 323, when the push-pull block 324 is located in the sliding groove 323 and at one end of the second cylinder 321 on the axial outer side, the vertical distance between the outer end face of the push-pull block 324 and the outer surface of the second cylinder 321 is greater than the vertical distance between the welding face of the first welding protrusion 322 and the outer surface of the second cylinder 321, when the push-pull block 324 is located at the other end of the sliding groove 323, the vertical distance between the outer end face of the push-pull block 324 and the outer surface of the second cylinder 321 is equal to the vertical distance between the welding face of the first welding protrusion 322 and the outer surface of the second cylinder 321, the welding knife roller 320 and the welding bottom roller contact the pad 5 first during rotation, the push-pull block 324 moves along the sliding groove 323 under the extrusion of the welding bottom roller, and drives the pad 5 to move, so that the pad 5, the free edge of the pad 5 is welded to the cover 1 by the first welding protrusion 322.

Referring to fig. 8, the turnover device 400 includes a first pinch roll 401 and a second pinch roll 402 for realizing 45 ° clockwise rotation of the material, and a third pinch roll 403, a fourth pinch roll 404 and a fifth pinch roll 405 for realizing 135 ° clockwise rotation of the material, an included angle between the first pinch roll 401 and the horizontal plane is 15 °, an included angle between the second pinch roll 402 and the horizontal plane is 45 °, the third pinch roll 403 and the fifth pinch roll 405 are horizontally distributed, the first pinch roll 401, the second pinch roll 402, the third pinch roll 403, the fourth pinch roll 401 and the fifth pinch roll 405 are sequentially increased in distance between two adjacent pinch rolls according to the direction of the production line, so that the turnover stability of the material is good, the deviation rectifying function is achieved, and the deviation of the material is prevented.

Referring to fig. 9 and 10, the ear band discharging spot welding device 500 includes a first ear band discharging spot welding mechanism and a second ear band discharging spot welding mechanism disposed on two lateral sides, the first ear band discharging spot welding mechanism and the second ear band discharging spot welding mechanism are staggered, the first ear band discharging spot welding mechanism and the second ear band discharging spot welding mechanism include an ear band discharging roller 501 rotatably disposed on the frame, a rotating shaft 502 perpendicularly disposed on the frame, and a driving motor for driving the rotating shaft to rotate, the rotating shaft 502 is provided with a mounting seat 503, the mounting seat 503 is detachably provided with a swing rod 504, a free end of the swing rod 504 is provided with a first driving cylinder 505, an output shaft of the first driving cylinder 505 is provided with a fixing seat 506, the fixing seat 506 is provided with an ultrasonic welding device 507, an ear band guiding and clamping device and an ear band cutting device 508, the ear band cutting device 508 is arranged between the ultrasonic welding device 507 and the ear band guiding and clamping device and is used for cutting an ear band, the ear band guiding and clamping device comprises a guide rail 509 arranged on the fixed seat 506, a slide block 510 arranged on the guide rail 509 and a second driving air cylinder for driving the slide block 510 to move along the guide rail, a clamping frame 511 is arranged on the slide block 510, two clamping blocks 512 are arranged on the clamping frame 511, a clamping spring 513 is arranged between the clamping blocks 512 and the clamping frame 511, the two clamping blocks 512 are clamped on the ear band 2 under the action of the clamping spring 513, the clamping frame 511 is driven to move towards the ultrasonic welding device 507 through the second driving air cylinder, the ear band 2 clamped by the clamping block is connected with the cover body 1 through the ultrasonic welding device 507 to form a first connection point, then the first driving motor is driven to drive the swing rod 504 to swing to form a second connection point, and then the second driving air cylinder drives the clamping frame 511 to, so that a certain space is reserved for the ear belt 2, which is beneficial to cutting the ear belt 2 and reserves the welding area of the ear belt 2.

Referring to fig. 11, the nose bridge discharging and cutting device 900 includes a nose bridge discharging roller 901, a first clamping and guiding roller 902, a second clamping and guiding roller 903, and a nose bridge cutting mechanism 904 rotatably disposed on the frame, the nose bridge cutting mechanism 904 is disposed between the first clamping and guiding roller 902 and the second clamping and guiding roller 903, the nose bridge cutting mechanism 904 includes a splitting cutter roller and a splitting bottom roller rotatably disposed on the frame, the nose bridge welding and cutting device 110 includes a sliding rod 111 connected to an output end of the nose bridge discharging and cutting device 900 and an output end of the cutting device 800, a cantilever 112 disposed on the sliding rod 111, and a second driving motor driving the cantilever 112 to move along the sliding rod 111 through a ball screw 113, two clamping plates 114 are disposed at a free end of the cantilever 112, lateral sides of the two clamping plates 114 are hinged to each other, and driven by a driving device to swing toward or away from each other, the improved nose bridge cutting device is characterized in that adsorption holes are formed in the clamping plates 114 and are communicated with the negative pressure adsorption tank, the nose bridge strips 3 are discharged through nose bridge strip discharging rollers 901 and cut into single pieces through nose bridge strip cutting mechanisms 904, the two clamping plates 114 are driven by the second driving motor to adsorb the nose bridge strips 3 and convey the nose bridge strips to the cutting device 800, finally the two clamping plates 114 are driven by the driving device to move in opposite directions, the nose bridge strips 3 are compounded on the cover body 1, the cover body 1 is clamped and separated from waste materials, and discharging is achieved.

Referring to fig. 12, 13 and 15, a mask for enhancing the fit with the face comprises a mask body 1 covering the mouth and nose of a user and a pair of ear bands 2, in this embodiment, the mask body 1 is formed by sequentially laminating and compounding an outer layer spun-bonded part, a polypropylene melt-blown fabric and an inner layer spun-bonded part, of course, the mask body 1 can be compounded into a multi-layer structure in the same compounding manner to form a better filtering effect, a transverse direction X extending along the length direction of the mask body 1 and a longitudinal direction Y perpendicular to the transverse direction are defined, the mask body comprises a left mask body 11 and a right mask body 12 which are symmetrically arranged, the upper part a of the left mask body 11 and the upper part a of the right mask body 12 are integrally connected, a nose bridge strip 3 is arranged on the connection region, a longitudinal crease line 4 is pressed at the connection position, the longitudinal crease line 4 coincides with a symmetry line d, and the middle part b, b and c of the, The lower part c and the middle part b and the lower part c of the right cover body 12 are connected in a transverse mode on a symmetry line d through ultrasonic and thermal compression, preferably ultrasonic welding, in the actual production process, the areas among the middle part b and the lower part c of the left cover body 11 and the middle part b and the lower part c of the right cover body 12 need to be cut off, so that the middle part b and the lower part c of the left cover body 11 and the middle part b and the lower part c of the right cover body 12 are welded in the transverse mode on the symmetry line d through ultrasonic, the size formed by the parts is different, the manufactured cover body 1 forms a bowl-shaped structure in the unfolded state, the mouth and the nose of a user can be covered conveniently, and the periphery of the cover body 1 is attached to the face.

Referring to fig. 14, of course, in the contour e of the cover body 1 at the prepressing position, it is necessary to extend outward on both lateral sides of the cover body 1 to reserve an area f for preparing the cushion part 5, and its edge g is cut first so that the area f is separated from the remainder area h.

Referring to fig. 15, 16, 17 and 18, it is defined that a side of the mask body 1 contacting with the skin when worn is an inner side i, and a side far away from the skin is an outer side j, two lateral sides of the mask body 1 are bent inward, and a free edge of the mask body 1 is fixedly connected with the inner side j of the mask body 1 by ultrasonic waves, thermal compression or glue spraying, preferably ultrasonic welding, so as to form an outer portion 51 and an inner portion 52 which are stacked, the outer portion 51 and the inner portion 52 form a pad 5, a boundary between the outer portion 51 and the inner portion 52 is a bending line k, and a longitudinal groove 6 is pressed on the inner side i of the outer portion 51 and located on the periphery side of the bending line k along the longitudinal direction by ultrasonic waves or thermal compression, preferably thermal compression, so that the pad 5 is spread to form a hollow tubular structure, which is favorable for the pad 5 to be attached to the face of. The cushion parts 5 are arranged on the two transverse sides of the cover body 1 and are contacted with the face, the cushion parts 5 are of hollow tubular structures, the cushion parts 5 are well attached to the face, the gap between the cushion parts and the face is reduced, the sealing performance is improved, in the specific production, a longitudinal groove 6 is formed in the two transverse sides of the cover body 1 through hot pressing, the material of the cover body 1 is shrunk to a certain degree and hardened in the longitudinal pressing groove 6 pressing, so that the free edges (namely, the area f for preparing the cushion parts 5 is reserved by extending the two transverse sides of the cover body 1 outwards, the edge g is cut first to separate the area f from the residual material area h, the edge g of the area f for preparing the cushion parts 5 is tilted, the outer part 51 and the inner part 52 of the cushion parts 5 are bent and laminated through pressing, the free edges of the inner part 52 are fixedly connected with the inner side face i of the cover body 1, and under the action of the longitudinal groove 6, cushion portion 5 can be strutted and form bulky state, and its thickness is greater than the thickness of cover body 1 promptly to cushion portion 5 is the cavity and easily moulds the type, when the user wears, its face structure of adaptation that can be better and inseparable laminating, this kind of design simple structure, and can be applied to in the quick production flow of disposable gauze mask, make reduction that manufacturing cost can be by a wide margin, simultaneously can effectual improvement gauze mask and the laminating nature of user face, improve the adaptation.

Referring to fig. 17 and 18, certainly, three transverse grooves 7 are formed in the inner side surface i of the pad 5 in parallel along the longitudinal direction Y by ultrasonic or thermal compression, preferably, the transverse grooves 7 are formed by extending the longitudinal groove 6 transversely outwards and exceed the bending line (k) by 3mm, so that the free edge of the pad 5 can be better tilted and bent in production, meanwhile, the material of the cover body 1 in the pressing process of the transverse grooves 7 also has certain shrinkage and hardening, the side surface of the pad 5 can be supported after bending to form a more three-dimensional structure, and the outer part 51 is integrally connected with the cover body 1, so that the free state of the contact area between the inner part 52 and the face is supported to form an outward bulge, the contact with the face is better, and the bonding performance is further improved.

After the area f for preparing the pad part 5 is reserved and is bent and welded with the inner side surface i of the cover body 1 to form the pad part 5 with a hollow tubular structure, a soft material, such as a cotton material, can be filled in the middle of the pad part, so that the pad part 5 is stretched, the fitting performance with the face is improved, but the filling material accounts for 65-80%, preferably 70%, so that the pad part can be filled and stretched, the flexibility of the pad part 5 is ensured, the pad part can be well bent and fitted, and the bending difficulty is prevented from being increased due to over hardness.

In this embodiment, referring to fig. 12 and 13, the ear straps 2 are disposed on two lateral sides of the cover body 1, and extend outward along the lateral direction X to be hooked on the ears of the user, two end points of each ear strap 2 are uniformly distributed on one lateral side of the cover body 1 and distributed in the longitudinal direction Y, the two end points of the ear straps 2 are connected with the outer side j of the cover body 1 by ultrasonic waves, thermal compression or glue spraying to form a connection point m, a distance dimension n between the two connection points m along the longitudinal direction Y is smaller than a distance dimension o between the two end points of the cushion part 5, and the cushion block 8 is disposed on the cushion part 5 in a contact area where the ear straps 2 extend outward along the lateral direction X to be hooked on the ears of the user and is in contact with the cushion part 5. Cushion part 5 is formed by the outside 51 and the inside 52 of range upon range of setting, and its hardness is great for cover body 1, and when ear belt 2 outwards extended hook hung user's ear along transverse direction X, ear belt 2 supported on cushion part 5, played a holding down force to cushion part 5, can make cushion part 5 laminate better and face, because the length size of ear belt 2 is fixed, the cushion 8 of setting has increaseed the holding down force of ear belt 2 to the cushion part, further improved the laminating nature.

In addition, referring to fig. 17 and 18, two crease lines 9 are formed at the pressing position of the pad portion 5 at intervals along the longitudinal direction Y, the pressing can be performed through physical pressing, that is, the crease lines 9 are formed by pressing the pressing block with raised strips, and the crease lines 9 formed on the pad portion 5 enable the pad portion 5 to be easily bent and attached along with the facial structure of the user, so that the use effect is good.

Referring to fig. 12 and 19, the distribution area of the pad 5 extends downward from the upper end point to the chin of the user at the horizontal opposite position of the nose bridge 3, when the user wears the mask, the upper portion a of the pad tightly attaches the mask body 1 to the nose through the nose bridge 3, the pad 5 is disposed on two sides of the mask body 1 and extends to the chin, and meanwhile, the lower edge of the mask body 1 extends downward and toward the inner side i to form the clamping piece 10, so that the periphery of the mask body 1 can be better attached to the face, thereby forming an omnidirectional protection, and the sealing performance of the mask is greatly improved.

The specific arrangement of the clamping piece 10 is as follows: the symmetry line d department that lies in the cover body 1 on the clamping piece 10 cuts V-arrangement breach 20, the V-arrangement breach 20 passes through ultrasonic bonding and connects, and this V-arrangement breach 20 cuts and goes on together with the middle part b and the lower part c of the cover body 1, and its horizontal width size p that cuts will be greater than the horizontal width size q after the cover body 1 cuts, makes clamping piece 10 welded connection back can incline to user's direction like this for clamping piece 10 laminates in user's chin, forms better laminating nature.

The working mode of the invention is as follows: the mask machine production line realizes cutting of the edge of the pad part 5 while prepressing the mask body 1, presses the longitudinal groove 6 while sealing the edge of the mask body 1, and presses the longitudinal groove 6 while sealing the edge of the mask body 1, wherein the material of the mask body 1 shrinks to a certain extent and hardens during pressing of the longitudinal groove 6, so that the free edge of the material can be bent and tilted, and then the pad part 5 is arranged in a stacking way and welded with the edge of the pad part and the mask body 1 to form the pad part 5, so that the produced mask has the pad part, the advantage is that the pad part 5 can be unfolded to form a bulkiness state, namely the thickness of the pad part is larger than that of the mask body 1, the pad part 5 is hollow and easy to mold, when a user wears the mask, the mask can better adapt to the face structure and be tightly attached, the gap between the pad part and the cushion part can be reduced, the sealing performance can be improved, the flow steps on the device can be simplified, the material conveying, the production efficiency is improved, and the sealing property of the produced mask is obviously improved.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. The utility model provides a gauze mask machine production line which characterized in that: the device comprises a rack, a control device arranged on the rack, an unreeling device, a pre-pressing edge cutting device, a pad part forming device, a turning device, an ear band discharging spot welding device, a folding device, an inclined sealing device, a slitting device, a nose bridge strip discharging slitting device and a nose bridge strip welding and blanking device, wherein the pre-pressing edge cutting device comprises a pre-pressing edge cutting knife roll and a pre-pressing edge cutting bottom roll which are arranged on the rack, the pre-pressing edge cutting knife roll comprises a first rotating shaft, a first barrel body sleeved on the first rotating shaft and protection lips arranged on two axial sides of the first barrel body, at least one pair of arc-shaped cutters are arranged on the outer surface of the first barrel body in a surrounding manner, each pair of arc-shaped cutters comprises a first arc-shaped cutter and a second arc-shaped cutter which are symmetrically arranged by taking the middle point of the central axis vertical to the first barrel body as a symmetrical line, and a pressing, the thickness size of pressing the briquetting is less than the thickness size of arc cutter, pad portion forming device is including being used for the banding of the cover body and the pad portion bending roll perk banding mechanism and make the pad portion range upon range of the distribution and will just the welding mechanism that free limit and cover body are connected.

2. The mask machine production line according to claim 1, characterized in that: the welding mechanism comprises a welding knife roll and a welding bottom roll which are rotationally arranged on a rack, the welding knife roll comprises a second rotating shaft and a second barrel body which is sleeved on the second rotating shaft, two first welding convex strips which are symmetrically arranged by taking the middle point of the central axis of the vertical to the second barrel body as a symmetry line are arranged on the second barrel body, at least one pad part arranging device is arranged on the second barrel body and positioned on the peripheral side outer side of the two first welding convex strips, a single pad part arranging device corresponds to a cover body, the pad part arranging device comprises a plurality of sliding grooves arranged on the second barrel body, the sliding grooves are distributed along the axial direction of the second barrel body, the depth of the sliding grooves is gradually increased from one axial end of the second barrel body to the center, a push-pull block and a spring are arranged in the annular grooves, and the push-pull block is positioned in the sliding grooves under the action of the spring and positioned on the axial, when external force acts on the push-pull block vertically along the radial direction of the second cylinder, the push-pull block slides along the sliding groove, when the push-pull block is positioned in the sliding groove and positioned at one end of the axial outer side of the second cylinder, the vertical distance between the outer end face of the push-pull block and the outer surface of the second cylinder is larger than the vertical distance between the welding face of the first welding convex strip and the outer surface of the second cylinder, and when the push-pull block is positioned at the other end of the sliding groove, the vertical distance between the outer end face of the push-pull block and the outer surface of the second cylinder is equal to the vertical distance between the welding face of the first welding convex strip and the outer surface of.

3. The mask machine production line according to claim 2, characterized in that: the banding mechanism is including rotationally locating banding rotor and the banding base roll in the frame, the banding rotor includes that third pivot and cover locate the third barrel of third pivot, the third barrel includes that the mid point of its axis of perpendicular to is two second welding sand grips that are used for the horizontal both sides banding of the cover body that the symmetry set up as the line of symmetry for the mid point of the axis of perpendicular to is, the axial outside that lies in second welding sand grip on the third barrel all is equipped with the third welding sand grip that is used for making the pad portion bend and roll up, the axial outside of third welding sand grip and with third welding sand grip an organic whole be equipped with at least one fourth welding sand grip, each fourth welding sand grip distributes along the axial direction of third barrel, the length and size 3 ~ 8mm of fourth welding sand grip.

4. The mask machine production line according to any one of claims 1 to 3, characterized in that: turning device is including being used for realizing first grip roll, the second grip roll of material clockwise rotation 45 in proper order to and be used for realizing material clockwise rotation 135 third grip roll, fourth grip roll and fifth grip roll, the contained angle between first grip roll and the horizontal plane is 15, the contained angle between second grip roll and the horizontal plane is 45, third grip roll and fifth grip roll are horizontal distribution, first grip roll, second grip roll, third grip roll, fourth grip roll and fifth grip roll, the distance between its two adjacent grip rolls increases gradually according to the assembly line direction.

5. The mask machine production line according to claim 4, characterized in that: the ear belt discharging spot welding device comprises a first ear belt discharging spot welding mechanism and a second ear belt discharging spot welding mechanism which are arranged on two transverse sides, the first ear belt discharging spot welding mechanism and the second ear belt discharging spot welding mechanism are arranged in a staggered manner, the first ear belt discharging spot welding mechanism and the second ear belt discharging spot welding mechanism respectively comprise an ear belt discharging roller which is rotatably arranged on a rack, a rotating shaft which is vertically arranged on the rack and a driving motor which drives the rotating shaft to rotate, a mounting seat is arranged on the rotating shaft, a swing rod is detachably arranged on the mounting seat, a first driving cylinder is arranged at the free end of the swing rod, a fixed seat is arranged on an output shaft of the first driving cylinder, an ultrasonic welding device, an ear belt guiding and clamping device and an ear belt cutting device are arranged on the fixed seat, and the ear belt cutting device is arranged between the ultrasonic welding device and the ear belt guiding and clamping device and is used for cutting an ear, ear area direction clamping device drives actuating cylinder including locating the guide rail on the fixing base, locating slider on the guide rail and drive slider along the second of guide rail motion, be provided with the holding frame on the slider, be equipped with two grip blocks on the holding frame, be equipped with the centre gripping spring between grip block and the holding frame, make two grip blocks centre gripping in the ear area under the centre gripping spring effect.

6. The mask machine production line according to claim 5, characterized in that: device is cut to nose bridge strip blowing is including rotationally being equipped with nose bridge strip blowing roller, first centre gripping guide roll, second centre gripping guide roll and nose bridge strip cutting mechanism in the frame, nose bridge strip cutting mechanism locates between first centre gripping guide roll and the second centre gripping guide roll, nose bridge strip cutting mechanism is including rotationally locating the branch cutter roller in the frame and cutting the bottom roll.

7. The mask machine production line according to claim 6, characterized in that: bridge of the nose strip welding unloader including connect in bridge of the nose strip blowing cut the device the output with cut the device output the slide bar, locate the cantilever on the slide bar and drive the cantilever through ball screw along the second driving motor of slide bar motion, the free end of cantilever is equipped with two grip blocks, two horizontal one side of grip block is articulated each other, drives its swing in opposite directions or opposite directions through drive arrangement, be equipped with the absorption hole on the grip block, absorption hole and negative pressure adsorb the case intercommunication.

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