阅读说明：本技术 一种鱼型口罩本体机 (Fish-shaped mask body machine ) 是由 陈伟斌 于 2020-11-13 设计创作，主要内容包括：本发明公开了一种鱼型口罩本体机,包括均设置于一机架上,并依次排列的前处理组件、双边折叠机构和后处理组件；前处理组件和后处理组件均包括用于焊接材料的焊接机构,和用于切除余料的切刀机构；双边折叠机构采用一体式设计,用于将材料进行左右折边的依次折叠；本发明中的双边折叠机构一体式设计,在同一个机构上即可完成口罩材料的两边折叠,对比于以往采用分体式单边折叠的折叠机构,具有结构紧凑,节省空间的优点；焊接机构和切刀机构均通过快捷装卸支架设置于机架上；焊接辊或切刀辊首先装配于快捷安装座中成为一模块,该模块从快捷装卸支架的旁侧装入至该快捷装卸支架内,对比于以往的装配方式,具有装配效率高,快速对位的优点。(The invention discloses a fish-shaped mask body machine, which comprises a pretreatment assembly, a bilateral folding mechanism and a post-treatment assembly, wherein the pretreatment assembly, the bilateral folding mechanism and the post-treatment assembly are arranged on a rack in sequence; the pre-treatment assembly and the post-treatment assembly respectively comprise a welding mechanism for welding materials and a cutter mechanism for cutting off excess materials; the double-side folding mechanism adopts an integrated design and is used for sequentially folding the left and right folded edges of the material; the double-side folding mechanism is integrally designed, so that two sides of the mask material can be folded on the same mechanism, and compared with a split type single-side folding mechanism adopted in the prior art, the double-side folding mechanism has the advantages of compact structure and space saving; the welding mechanism and the cutter mechanism are arranged on the rack through the quick assembling and disassembling bracket; the welding roller or the cutter roller is firstly assembled in the quick mounting seat to form a module, the module is arranged into the quick assembling and disassembling support from the side of the quick assembling and disassembling support, and compared with the traditional assembling mode, the quick assembling and disassembling device has the advantages of high assembling efficiency and quick alignment.)

1. The utility model provides a fish type gauze mask body machine which characterized in that: the folding device comprises a pretreatment assembly, a bilateral folding mechanism and a post-treatment assembly which are all arranged on a frame and are arranged in sequence; the pre-treatment assembly and the post-treatment assembly respectively comprise a welding mechanism for welding materials and a cutter mechanism for cutting off excess materials; the bilateral folding mechanism adopts an integrated design and is used for sequentially folding left and right folded edges of the material.

2. The fish-shaped mask body machine according to claim 1, wherein: the welding mechanism and the cutter mechanism are arranged on the rack through the quick assembling and disassembling bracket; the rapid assembling and disassembling support comprises a support bottom plate, a support upright post, a guide rail and a rapid mounting seat; the support upright columns are oppositely arranged on two sides of the upper part of the support bottom plate; the guide rail is arranged on the inner side of the opposite surface of the stand column of the bracket; the quick mounting seat is internally provided with a mounting space for mounting the roller body, and the quick mounting seat slides into the space enclosed by the stand columns of the support from the outside to realize the quick assembly of the roller body on the quick assembling and disassembling support.

3. The fish-shaped mask body machine according to claim 2, wherein: the quick mounting seat comprises a mounting seat bottom plate and a mounting seat vertical plate; the mounting seat vertical plates are oppositely arranged on two sides of the upper part of the mounting seat bottom plate; the roller body is arranged between the vertical plates of the mounting seat through a bearing; the width of the quick mounting seat is consistent with the gap on the inner side of the support upright post, the support upright post penetrates into the support upright post on the other side from one side when the quick mounting seat is installed, and the quick mounting seat is locked through the locking piece.

4. The fish-shaped mask body machine according to claim 2, wherein: the welding mechanism comprises a welding roller and an ultrasonic welding assembly; the welding roller is assembled in the quick mounting seat; the ultrasonic welding assembly comprises an ultrasonic generator and a welding head; the ultrasonic generator is connected with the guide rail in a sliding manner through a welding lifting plate, and the welding lifting plate is connected with a first lifting driving device in a driving manner; the welding head is arranged at the lower part of the ultrasonic generator and is positioned above the quick mounting seat, and the welding direction of the welding head faces downwards.

5. The fish-shaped mask body machine according to claim 4, wherein: the ultrasonic welding assembly further comprises a heat dissipation element; the heat dissipation element consists of a top heat dissipation fan and a bottom heat dissipation fan; the top heat radiation fan is arranged on the outer side of the ultrasonic generator through a heat radiation frame; the bottom heat radiation fan is arranged on the outer side of the welding head.

6. The fish-shaped mask body machine according to claim 2, wherein: the cutter mechanism comprises a cutter roller and a press roller; the cutter roller is assembled in the quick mounting seat; the compression roller is located the top of swift mount pad to through push down the slider with guide rail sliding connection, should push down the slider and be connected with second lift drive through compression roller transmission assembly drive.

7. The fish-shaped mask body machine according to claim 6, wherein: the transmission assembly comprises a transmission shaft, a first swing arm, a second swing arm, a connecting block and a stroke adjusting screw; the transmission shaft is connected with the guide rail in a sliding manner through a transmission sliding block and is positioned above the press roller; the first swing arm is sleeved on the transmission shaft and is connected with the second lifting driving device; the second swing arm is sleeved at the left end and the right end of the transmission shaft; one end of the connecting block is connected with the second swing arm, and the other end of the connecting block is connected with the downward pressing sliding block; the stroke adjusting screw is arranged on the stand column of the bracket, the tail end of the stroke adjusting screw is connected with the transmission slide block, and the vertical position of the transmission slide block can be changed by screwing the stroke adjusting screw, so that the maximum stroke of the downward movement of the press roller is adjusted.

8. The fish-shaped mask body machine according to claim 1, wherein: the double-side folding mechanism comprises a folding bottom plate, a pre-pressing wheel, a folding base plate, a folding pressing plate and a folding inserting plate; the prepressing wheel is arranged above the folding bottom plate and is used for performing pre-flanging on the mask material; the folding base plate is arranged above the folding bottom plate, is positioned on the rear side of the pre-pressing wheel and is used for supporting mask materials; the folding pressing plate is arranged on the rear side of the pre-pressing wheel, is positioned above the folding base plate and is used for carrying out back flanging on the mask material; the folding inserting plates are at least two and are respectively arranged on two sides of the upper part of the folding pressing plate along the front-back arrangement and used for folding the mask material.

9. The fish-shaped mask body machine according to claim 8, wherein: the prepressing wheels are at least two and are all arranged on a lifting support, and the lifting support is arranged above the folding bottom plate through a portal frame; the lifting bracket comprises a hand-adjusting lifting screw and a lifting mounting plate; the manual adjusting lifting screw is in threaded connection with the portal frame; the lifting mounting plate is arranged at the tail end of the hand-adjusting lifting screw rod; the pre-pressing wheel is arranged on the left side and the right side of the lower portion of the lifting mounting plate.

10. The fish-shaped mask body machine according to claim 8, wherein: the folding base plates are arranged oppositely in a mirror image manner, and the outermost side of the upper part of each folding base plate is provided with a width limiting strip; the folding base plate is connected with a width adjusting assembly; the width adjusting assembly comprises a folding mounting plate and a width adjusting screw rod; the folding base plate is arranged between the folding mounting plates; the two width adjusting screws are respectively in threaded connection with different folding base plates; the folding mounting plate is fixed through a folding fixing seat; folding fixing base is the rectangle and distributes and is equipped with four to all set up in the upper portion of folding bottom plate, every all be equipped with on the folding fixing base and adjust waist groove from top to bottom, be used for control the whole inclination of folding backing plate with be used for controlling the whole height of folding backing plate.

Technical Field

The invention relates to the technical field of mask manufacturing equipment, in particular to a fish-shaped mask body machine.

Background

The existing fish-shaped mask body machine generally comprises a welding mechanism, a cutter mechanism and a folding mechanism, wherein the welding mechanism and the cutter mechanism are divided into a front group of components and a rear group of components, the front group of welding mechanism and the cutter mechanism weld a plurality of layers of mask materials and cut off excess materials outside a welding line, the folding mechanism folds the materials processed by the front group of components, and the rear group of components weld the outer sides of folding edges in the folded materials and cut off the excess materials. The mask machine adopting the mechanism can replace manual work to carry out automatic production, but has the following problems:

this kind of folding mechanism, generally use through two sets of folding assembly combinations of tandem, two sets of folding assembly are used for two folding limits of fish type gauze mask respectively, it is by the support, carry the compression roller, constitute folded plate and transport switching-over roller, after a folding limit of gauze mask after a set of folding assembly has been folded, another folding limit to another folding assembly folding gauze mask is carried to another set of folding assembly folding gauze mask to the rethread transport switching-over roller, though can replace the automatic completion of staff folding, but two sets of folding assembly occupation spaces are big, when the gauze mask of other specifications is produced to same production line, need adjust distance between two sets of and carry the position of switching-over roller, and because folding assembly locks on the lathe, still need unpack apart the subassembly and adjust, the debugging degree of difficulty is big, the debugging is.

This kind of welding mechanism and cutter structure, welding roller and cutter roller need be followed the support top and are packed into downwards, use support top end cover to lock after packing into, when needs change welding roller in order to adapt to the different specification gauze masks of production, still need tear the support top end cover open and take out the welding roller and change, and assembly efficiency is poor. Then, in the manufacturing process of the mask, the mask materials are welded and combined through a welding mechanism, and then the excessive rim charge is cut off through a cutter mechanism. The welding mechanism and the cutter mechanism are driven by the same motor and the chain wheel, so that when the welding roller and the cutter roller are assembled and screwed for adjustment, the machining starting points of other mechanisms are affected, the starting points can be aligned only before the welding roller and the cutter roller are assembled or the transmission mechanism behind the welding roller and the cutter roller is loosened for rotation alignment after the welding roller and the cutter roller are assembled, and the adjustment is complex.

Accordingly, the present applicant has developed a fish-shaped mask body machine to solve the above-mentioned problems of the prior art.

Disclosure of Invention

The invention aims to provide a fish-shaped mask body machine to solve the problems.

The invention realizes the purpose through the following technical scheme:

a fish-shaped mask body machine comprises a pretreatment component, a bilateral folding mechanism and a post-treatment component which are all arranged on a frame and are arranged in sequence; the pre-treatment assembly and the post-treatment assembly respectively comprise a welding mechanism for welding materials and a cutter mechanism for cutting off excess materials; the bilateral folding mechanism adopts an integrated design and is used for sequentially folding left and right folded edges of the material.

Furthermore, the welding mechanism and the cutter mechanism are arranged on the rack through a quick assembling and disassembling support; the rapid assembling and disassembling support comprises a support bottom plate, a support upright post, a guide rail and a rapid mounting seat; the support upright columns are oppositely arranged on two sides of the upper part of the support bottom plate; the guide rail is arranged on the inner side of the opposite surface of the stand column of the bracket; the quick mounting seat is internally provided with a mounting space for mounting the roller body, and the quick mounting seat slides into the space enclosed by the stand columns of the support from the outside to realize the quick assembly of the roller body on the quick assembling and disassembling support.

Further, the quick mounting seat comprises a mounting seat bottom plate and a mounting seat vertical plate; the mounting seat vertical plates are oppositely arranged on two sides of the upper part of the mounting seat bottom plate; the roller body is arranged between the vertical plates of the mounting seat through a bearing; the width of the quick mounting seat is consistent with the gap of the inner side of the support upright post, and the quick mounting seat penetrates into the support upright post on the other side from the support upright post on one side when being mounted and is locked through a locking piece; the locking piece is an L-shaped plate, is locked on the support upright post through a bolt and is in contact with the quick mounting seat to realize the locking of the quick mounting seat.

Further, the welding mechanism comprises a welding roller and an ultrasonic welding assembly; the welding roller is assembled in the quick mounting seat; the ultrasonic welding assembly comprises an ultrasonic generator and a welding head; the ultrasonic generator is connected with the guide rail in a sliding manner through a welding lifting plate, and the welding lifting plate is connected with a first lifting driving device in a driving manner; the welding head is arranged at the lower part of the ultrasonic generator and is positioned above the quick mounting seat, and the welding direction of the welding head faces downwards.

Further, the ultrasonic welding assembly further comprises a heat dissipation element; the heat dissipation element consists of a top heat dissipation fan and a bottom heat dissipation fan; the top heat radiation fan is arranged on the outer side of the ultrasonic generator through a heat radiation frame; the bottom heat radiation fan is arranged on the outer side of the welding head.

Further, the cutter mechanism comprises a cutter roller and a press roller; the cutter roller is assembled in the quick mounting seat; the compression roller is located the top of swift mount pad to through push down the slider with guide rail sliding connection, should push down the slider and be connected with second lift drive through compression roller transmission assembly drive.

Furthermore, the transmission assembly comprises a transmission shaft, a first swing arm, a second swing arm, a connecting block and a stroke adjusting screw; the transmission shaft is connected with the guide rail in a sliding manner through a transmission sliding block and is positioned above the press roller; the first swing arm is sleeved on the transmission shaft and is connected with the second lifting driving device; the second swing arm is sleeved at the left end and the right end of the transmission shaft; one end of the connecting block is connected with the second swing arm, and the other end of the connecting block is connected with the downward pressing sliding block; the stroke adjusting screw is arranged on the stand column of the bracket, the tail end of the stroke adjusting screw is connected with the transmission slide block, and the vertical position of the transmission slide block can be changed by screwing the stroke adjusting screw, so that the maximum stroke of the downward movement of the press roller is adjusted.

Furthermore, the bilateral folding mechanism comprises a folding bottom plate, a pre-pressing wheel, a folding base plate, a folding pressing plate and a folding inserting plate; the prepressing wheel is arranged above the folding bottom plate and is used for performing pre-flanging on the mask material; the folding base plate is arranged above the folding bottom plate, is positioned on the rear side of the pre-pressing wheel and is used for supporting mask materials; the folding pressing plate is arranged on the rear side of the pre-pressing wheel, is positioned above the folding base plate and is used for carrying out back flanging on the mask material; the folding inserting plates are at least two and are respectively arranged on two sides of the upper part of the folding pressing plate along the front-back arrangement and used for folding the mask material.

Furthermore, at least two pre-pressing wheels are arranged and are respectively arranged on a lifting support, and the lifting support is arranged above the folding bottom plate through a portal frame; the lifting bracket comprises a hand-adjusting lifting screw and a lifting mounting plate; the manual adjusting lifting screw is in threaded connection with the portal frame; the lifting mounting plate is arranged at the tail end of the hand-adjusting lifting screw rod; the pre-pressing wheel is arranged on the left side and the right side of the lower portion of the lifting mounting plate.

Furthermore, the folding base plates are arranged oppositely in a mirror image manner, and the outermost side of the upper part of each folding base plate is provided with a limited width strip; the folding base plate is connected with a width adjusting assembly; the width adjusting assembly comprises a folding mounting plate and a width adjusting screw rod; the folding base plate is arranged between the folding mounting plates; the two width adjusting screws are respectively in threaded connection with different folding base plates; the folding mounting plate is fixed through a folding fixing seat; folding fixing base is the rectangle and distributes and is equipped with four to all set up in the upper portion of folding bottom plate, every all be equipped with on the folding fixing base and adjust waist groove from top to bottom, be used for control the whole inclination of folding backing plate with be used for controlling the whole height of folding backing plate.

Compared with the prior art, the invention has the beneficial effects that:

1. compact structure, the debugging is convenient. The folding mechanism in the invention adopts an integrated design, and can complete the folding of two sides of the mask material on the same mechanism, compared with the prior folding mechanism adopting split type unilateral folding, the invention has the advantages of compact structure and space saving; a folding bottom plate in the folding mechanism is provided with a front-back adjusting waist slot, and the mechanism can be adjusted to be aligned with other mechanisms through the front-back adjusting waist slot; the prepressing wheel is arranged on the lifting support, the adjustment can be carried out through the lifting support so as to adapt to different production conditions, and the mask material can be pre-flanged when passing through the prepressing wheel, so that the subsequent folding is smoother; the folding base plates are arranged through the width adjusting assembly and the folding fixing seat, the width between the folding base plates can be adjusted through the width adjusting assembly so as to adapt to the specifications of different masks, and the integral inclination and the integral height of the folding base plates can be adjusted through the upper and lower adjusting waist grooves on the folding fixing seat so as to adapt to materials with different thicknesses and processing angles; the folding pressing plate can press the material, and provides a bearing platform for the material during folding, so that the mask can be customized according to the specification of the mask, and the assembly is rapid; compared with a folding mechanism adopting a split type single-side folding mode in the prior art, the folding mechanism has the advantages of being stable in folding, convenient to debug and high in debugging efficiency.

2. The assembly efficiency is high, quick counterpoint. The welding mechanism and the cutter mechanism are both arranged on the rack through the quick assembling and disassembling bracket; the welding roller or the cutter roller is firstly assembled in the quick mounting seat and becomes a module with the mounting seat, the module is arranged into the quick mounting and dismounting bracket from the side of the quick mounting and dismounting bracket and is locked by the locking piece, so that the quick assembly of the welding roller or the cutter roller is realized; when the welding roller or the cutter roller needs to be replaced to adapt to the production of masks with different specifications, only the quick mounting seat needs to be pulled out, and the welding roller or the cutter roller on the quick mounting seat needs to be replaced; when the machining starting point needs to be adjusted, the quick mounting seat is only required to be pulled out, the welding roller or the cutter roller is adjusted to the starting point consistent with the cutter roller in a rotating mode, and then the quick mounting seat is inserted; compared with the prior mode that the upper part of the bracket needs to be downwards assembled and the top end cover of the bracket is used for locking after the assembly, the assembly has the advantages of high assembly efficiency and quick alignment.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic front view of the welding mechanism of the present invention;

FIG. 4 is a schematic view of the reverse configuration of the welding mechanism of the present invention;

FIG. 5 is an exploded view of the welding mechanism of the present invention;

FIG. 6 is a schematic front view of the cutter mechanism of the present invention;

FIG. 7 is a schematic view of the reverse construction of the cutter mechanism of the present invention;

FIG. 8 is an exploded view of the cutter mechanism of the present invention;

FIG. 9 is a schematic front view of the double-sided folding mechanism of the present invention;

FIG. 10 is a schematic view of the reverse configuration of the double-sided folding mechanism of the present invention;

FIG. 11 is an enlarged view of a portion of the structure at B in FIG. 10;

FIG. 12 is a schematic structural diagram of a material tension fine-tuning mechanism according to the present invention;

FIG. 13 is an enlarged view of a portion of the structure at A in FIG. 1;

fig. 14 is a schematic structural view of the feeding support of the present invention.

10. A frame; 11. a drive box; 20. a welding mechanism; 21. welding the roller; 22. an ultrasonic generator; 23. welding a head; 24. welding a lifting plate; 25. a first elevation drive device; 26. a top heat dissipation fan; 27. a bottom heat dissipation fan; 30. a cutter mechanism; 31. a cutter roll; 32. a compression roller; 33. pressing the slide block downwards; 34. a second elevation drive device; 35. a drive shaft; 351. a transmission slide block; 36. a first swing arm; 37. a second swing arm; 38. connecting blocks; 39. a stroke adjusting screw; 40. a bilateral folding mechanism; 41. folding the base plate; 42. a pre-pressing wheel; 421. a lifting support; 422. a gantry; 423. manually adjusting a lifting screw; 424. a lifting mounting plate; 43. folding the base plate; 431. a width limiting strip; 432. folding the mounting plate; 433. a width adjusting screw; 434. folding the fixed seat; 435. adjusting the waist groove up and down; 44. folding the pressing plate; 441. a flanging plate; 442. a material pressing plate; 45. folding the plugboard; 46. folding the adjusting pressure plate; 47. a feed zone; 50. the bracket is quickly assembled and disassembled; 51. a bracket base plate; 52. a bracket upright post; 53. a guide rail; 54. a mounting base plate; 55. installing a base vertical plate; 56. a locking member; 60. a material tension fine adjustment mechanism; 61. fine-tuning the support; 62. a driven gear shaft; 63. a fine adjustment roller; 64. a fine adjustment handle; 70. a residual material receiving mechanism; 71. a material receiving bracket; 72. a receiving runner; 73. a material receiving motor; 80. a material pulling mechanism; 81. a traction support; 82. a traction drive roller; 83. drawing the squeeze roll; 90. and (4) a feeding support.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be noted that the drawings of the present invention are each in simplified form and are each provided with a non-precise scale for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As shown in fig. 1 to 14, a fish-shaped mask body machine includes a pre-processing component, a double-side folding mechanism 40 and a post-processing component, all of which are disposed on a frame 10 and arranged in sequence; the pre-treatment assembly and the post-treatment assembly respectively comprise a welding mechanism 20 for welding materials and a cutter mechanism 30 for cutting off excess materials; the double-side folding mechanism 40 is designed in an integrated manner and is used for sequentially folding left and right folded edges of a material.

The welding mechanism 20 and the cutter mechanism 30 are both arranged on the frame 10 through a quick assembling and disassembling bracket 50; the quick assembling and disassembling support 50 comprises a support bottom plate 51, a support upright post 52, a guide rail 53 and a quick mounting seat; the bracket upright columns 52 are oppositely arranged at two sides of the upper part of the bracket bottom plate 51; the guide rail 53 is arranged on the inner side of the opposite surface of the bracket upright 52; the quick mounting seat is internally provided with a mounting space for mounting a roller body, and the quick mounting seat slides into the space enclosed by the support upright columns 52 from the outside to realize the quick assembly of the roller body on the quick assembly and disassembly support 50; the quick mounting seat comprises a mounting seat bottom plate 54 and a mounting seat vertical plate 55; the mounting seat vertical plate 55 is oppositely arranged on two sides of the upper part of the mounting seat bottom plate 54; the roller body is arranged between the mounting seat vertical plates 55 through a bearing; the width of the quick mounting seat is consistent with the gap inside the bracket upright column 52, and the quick mounting seat penetrates into the bracket upright column 52 on the other side from the bracket upright column 52 on one side during installation and is locked by a locking piece 56; the locking piece 56 is an L-shaped plate, and the locking piece 56 is locked on the bracket upright column 52 through bolts and is in contact with the quick mounting seat to realize locking of the quick mounting seat.

With continued reference to fig. 3-5, the welding mechanism 20 includes a welding roller 21, an ultrasonic welding assembly; the welding roller 21 is assembled in the quick mounting seat, and a gear arranged at one end of the welding roller is in driving connection with the driving box 11 on the rack 10; a driving motor and a plurality of driving chain wheels driven by chains are arranged in the driving box 11; the ultrasonic welding assembly comprises an ultrasonic generator 22, a welding head 23 and a heat dissipation element; the ultrasonic generator 22 is connected with the guide rail 53 in a sliding way through a welding lifting plate 24, and the welding lifting plate 24 is connected with a first lifting driving device 25 in a driving way; the welding head 23 is arranged at the lower part of the ultrasonic generator 22 and is positioned above the quick mounting seat, and the welding direction of the welding head 23 is downward; the heat dissipation element is composed of a top heat dissipation fan 26 and a bottom heat dissipation fan 27; the top heat dissipation fan 26 is disposed outside the ultrasonic generator 22 through a heat dissipation frame; the bottom heat dissipation fan 27 is disposed outside the welding head 23; during assembling, the welding roller 21 is firstly assembled in the quick mounting seat and becomes a module with the mounting seat, the module is assembled into the quick mounting and dismounting bracket 50 from the side of the quick mounting and dismounting bracket 50 and is locked by the locking piece 56, and the quick assembling of the welding roller 21 is realized; when the welding roller 21 needs to be replaced to adapt to the production of masks with different specifications, only the quick mounting seat needs to be pulled out, and the welding roller 21 on the quick mounting seat needs to be replaced; when the machining starting point needs to be adjusted, the quick mounting seat is only required to be pulled out, the welding roller 21 is rotated and adjusted to the starting point consistent with the cutter roller 31, and then the quick mounting seat is inserted; moreover, the ultrasonic welding assembly in the mechanism is arranged on the upper part of the rapid assembling and disassembling bracket 50, compared with the traditional mode of arranging in the worktable of the frame 10, the mode of arranging the ultrasonic welding assembly on the upper part is convenient to install and has better heat dissipation performance, and the ultrasonic welding assembly is also in driving connection with a first lifting driving device 25, the gap between the ultrasonic welding assembly and the welding roller 21 can be adjusted through the first lifting driving device 25, the rapid alignment before processing is realized, and the ultrasonic welding assembly does not need to be lifted by a manual adjusting screw rod in the traditional mode.

With continued reference to fig. 6 to 8, the cutter mechanism 30 includes a cutter roller 31 and a press roller 32; the cutter roller 31 is assembled in the quick mounting seat, and a gear arranged at one end of the cutter roller is in driving connection with the driving box 11 on the rack 10; the press roller 32 is positioned above the quick mounting seat and is in sliding connection with the guide rail 53 through a press slider 33, and the press slider 33 is in driving connection with a second lifting driving device 34 through a press roller 32 transmission assembly; the transmission assembly comprises a transmission shaft 35, a first swing arm 36, a second swing arm 37, a connecting block 38 and a stroke adjusting screw 39; the transmission shaft 35 is slidably connected with the guide rail 53 through a transmission slider 351 and is positioned above the press roller 32; the first swing arm 36 is sleeved on the transmission shaft 35 and connected with the second lifting driving device 34; the second swing arm 37 is sleeved at the left end and the right end of the transmission shaft 35; one end of the connecting block 38 is connected with the second swing arm 37, and the other end is connected with the lower pressing sliding block 33; the stroke adjusting screw 39 is arranged on the bracket upright 52, the tail end of the stroke adjusting screw is connected with the transmission slide block 351, and the vertical position of the transmission slide block 351 can be changed by screwing the stroke adjusting screw 39, so that the maximum stroke of the downward movement of the press roller 32 is adjusted; in this mechanism, the press roll 32 is disposed on top, and the cutter roll 31 is disposed below the press roll 32. The press roller 32 is connected to the fast loading and unloading bracket 50 in a sliding mode and moves up and down through the second lifting driving device 34 and the transmission assembly, compared with the traditional mode of manually adjusting a screw rod, the mechanism has the advantages that the loading speed is high, and the left end and the right end of the press roller 32 are displaced in a horizontal and synchronous mode; only the press roller 32 is moved during feeding, the cutter roller 31 does not need to be moved, the cutter roller 31 and the driving gear are always kept in a meshed state, the processing starting points of the welding mechanism 20 and the cutter mechanism 30 cannot be disturbed, and the design is reasonable; the maximum downward movement stroke of the compression roller 32 can be adjusted by screwing the stroke adjusting screw 39, so that the device is suitable for customizing masks with different thicknesses and specifications, and has strong universality. The cutter roller 31 in the mechanism is assembled through the quick mounting seat, the cutter roller 31 is firstly assembled in the quick mounting seat and becomes a module with the mounting seat, the module is installed into the quick mounting and dismounting bracket 50 from the side of the quick mounting and dismounting bracket 50, and then is locked through the locking piece 56, so that the quick assembly of the cutter roller 31 is realized; when the cutter roller 31 needs to be replaced to adapt to the production of masks with different specifications, only the quick mounting seat needs to be pulled out, and the cutter roller 31 on the quick mounting seat needs to be replaced; when the machining starting point needs to be adjusted, the quick mounting seat only needs to be pulled out, the cutter roller 31 is adjusted to the starting point of the cutter roller 31 in a rotating mode, and then the quick mounting seat is inserted.

With continued reference to fig. 9-11, the double-sided folding mechanism 40 includes a folding bottom plate 41, a pre-pressing wheel 42, a folding backing plate 43, a folding pressing plate 44, a folding inserting plate 45 and a folding adjusting pressing plate 46; the folding bottom plate 41 is provided with a front-back adjusting waist slot, and the mechanism can be adjusted to be aligned with other mechanisms through the front-back adjusting waist slot; the pre-pressing wheel 42 is arranged above the folding bottom plate 41 and is used for pre-flanging the mask material; at least two pre-pressing wheels 42 are arranged and are all mounted on a lifting support 421, and the lifting support 421 is arranged above the folding bottom plate 41 through a portal frame 422; the lifting support 421 comprises a hand-adjusting lifting screw 423 and a lifting mounting plate 424; the manual lifting screw 423 is in threaded connection with the portal frame 422; the lifting mounting plate 424 is arranged at the tail end of the hand-adjusting lifting screw 423; the pre-pressing wheels 42 are arranged at the left side and the right side of the lower part of the lifting mounting plate 424; the folding backing plate 43 is arranged above the folding bottom plate 41 and positioned at the rear side of the pre-pressing wheel 42 and used for supporting mask materials; the folding backing plates 43 are arranged oppositely in a mirror image manner, and the outermost side of the upper part of each folding backing plate 43 is provided with a width limiting strip 431; the folding backing plate 43 is connected with a width adjusting assembly; the width adjusting assembly comprises a folding mounting plate 432 and a width adjusting screw 433; the folding base plates 43 are arranged between the folding mounting plates 432; the two width adjusting screws 433 are respectively in threaded connection with different folding backing plates 43, and the positions of the two folding backing plates 43 can be respectively adjusted; the folding mounting plate 432 is fixed by a folding fixing seat 434; four folding fixing seats 434 are distributed in a rectangular shape and are all arranged at the upper part of the folding bottom plate 41, and each folding fixing seat 434 is provided with an up-down adjusting waist groove 435 for controlling the integral inclination and the integral height of the folding cushion plate 43; by adjusting the overall height, it is possible to control the distance between the folding mat 43 and the folding press 44, thus accommodating materials of different thicknesses; the folding pressing plate 44 is arranged on the rear side of the pre-pressing wheel 42, is positioned above the folding backing plate 43 and is used for carrying out back flanging on the mask material; the folding pressing plate 44 is composed of a flanging plate 441 and a pressing plate 442; the flanging plate 441 is vertically arranged, is positioned at the rear side of the pre-pressing wheel 42, and is assembled on the portal frame 422 through bolts; the presser 442 is attached to the lower portion of the flanging board 441 and located above the folding pad 43, and a feeding area 47 is formed between the presser 442 and the folding pad 43; a reinforcing connecting plate is arranged between the flanging plate 441 and the material pressing plate 442; the width of the flanging plate 441 is customized according to the folding distance of the mask; the folding insertion plates 45 are at least two and are respectively arranged on two sides of the upper part of the folding pressing plate 44 along the front-back arrangement for folding the mask material; the folding adjusting pressing plate 46 is arranged on the upper part of the folding backing plate 43 and is used for assisting the mask material to be folded.

With continued reference to fig. 12 to 13, further comprising a material tension fine-tuning mechanism 60, a surplus material receiving mechanism 70 and a material pulling mechanism 80; the material tension fine adjustment mechanism 60 comprises a fine adjustment bracket 61, a driven gear shaft 62, a fine adjustment roller 63 and a fine adjustment handle 64; the driven gear shaft 62 is vertically arranged in the fine adjustment bracket 61; the fine adjustment roller 63 is in threaded connection with the driven gear shaft 62; the fine adjustment handle 64 is in driving connection with the driven gear shaft 62; the material tension fine adjustment mechanism 60 is arranged between the welding mechanism 20 and the cutter mechanism 30, the lower side of the fine adjustment roller 63 is in contact with the material when in use, and the downward pressure of the fine adjustment roller 63 on the material can be changed by rotating the fine adjustment handle 64, so that the tension of the material is changed.

The excess material receiving mechanism 70 comprises a receiving bracket 71 and a receiving rotating wheel 72; the material receiving bracket 71 is arranged above the rack 10; the receiving rotating wheel 72 is arranged on the receiving bracket 71 and is connected with a receiving motor 73 in a driving way; the mechanism is arranged at the rear side of the cutter mechanism 30 and is used for collecting excess materials cut off by the cutter mechanism 30.

The material pulling mechanism 80 comprises a traction support 81, a traction driving roller 82 and a traction squeezing roller 83; the traction driving shaft is arranged in the traction support 81, and a gear arranged at one end of the traction driving shaft is in driving connection with a driving box 11 on the frame 10; the traction squeezing roller 83 is arranged in the traction bracket 81 and is positioned above the traction driving shaft; the mechanism is inserted among the welding mechanism 20, the cutter mechanism 30 and the double-side folding mechanism 40 and is used for providing power for material conveying.

The working principle is as follows: firstly, conveying a plurality of layers of mask materials to a welding mechanism 20 in a pretreatment assembly through a feeding support 90 for front welding, and welding the plurality of layers of mask materials; then, continuously transporting the workpiece to a cutter mechanism 30 in the pretreatment assembly, cutting off excess materials outside the welding boundary, and collecting the excess materials through an excess material collecting mechanism 70; then, the materials with the excess materials cut off are continuously transported to a double-side folding mechanism 40 for folding, firstly, the mask materials are rolled by a pre-pressing wheel 42, and the flanges at the left end and the right end of the rolled mask materials are rolled up to complete pre-flanging; then, the mask material enters a feeding area 47 formed between the pressure plate 442 and the folding backing plate 43, the turned-up parts of the left and right end turnups of the mask material continue to be turned up through the turnup plate 441, and the turned-up parts move to the surface of the pressure plate 442; finally, the materials which are turned over are folded at the left side and the right side through the folding insertion plates 45 at the left side and the right side respectively, specifically, when the materials which are turned over are folded through the folding insertion plates 45, the folding insertion plates 45 can extrude the materials at the positions to enable the materials to be attached to the surface of the pressure plate 442, after the two sides are folded, the materials are finally attached to the materials transported out from the feeding area 47, and the mask materials are folded; the folded material is continuously conveyed to a welding mechanism 20 in the post-processing assembly for post-welding, and the outer side of the folded edge is welded; then, the fish-shaped mask body is continuously conveyed to the cutter mechanism 30 in the post-processing assembly, excess materials outside the welding boundary are cut off, and the excess materials are collected away through the excess material collecting mechanism 70, so that the fish-shaped mask body is manufactured.

The nose bridge assembly mechanism can be additionally arranged on the respirator body to assemble the nose bridge to the respirator body.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.