CN111452367A

CN111452367A - Mask body forming mechanism

Info

Publication number: CN111452367A
Application number: CN202010288327.9A
Authority: CN
Inventors: 刘兴伟; 金建国
Original assignee: SHENZHEN PREVAIL TECHNOLOGY CO LTD
Current assignee: SHENZHEN PREVAIL TECHNOLOGY CO LTD
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-07-28

Abstract

The invention discloses a mask body forming mechanism, which comprises: the nose bridge mechanism comprises a machine cabinet, a guide mechanism, a folding mechanism, a nose bridge strip mechanism and a welding forming mechanism, wherein the guide mechanism, the folding mechanism, the nose bridge strip mechanism and the welding forming mechanism are sequentially distributed on the machine cabinet; the guiding mechanism is used for tensioning and guiding the supplied materials at the previous station to the folding mechanism according to a preset stacking sequence, the folding mechanism is used for folding the middle of the stacked supplied materials, the nose bridge strip mechanism is used for conveying and cutting the nose bridge strip into preset lengths, and the welding forming mechanism is used for welding the supplied materials with the folded nose bridge strips and cutting the supplied materials into mask bodies with preset sizes. Compared with the prior art, the mask body forming mechanism has the advantages that the integral structure is more simplified through redesigning the nose bridge strip mechanism and the welding forming mechanism, meanwhile, the forming quality of the mask body is improved, and the requirement of a higher standard is met.

Description

Mask body forming mechanism

Technical Field

The invention relates to the technical field of mask production equipment, in particular to a mask body forming mechanism.

Background

The mask is a medical and civil article with high use frequency. In the production of the mask, the most complicated link is the mask body forming process, and some existing mask body forming mechanisms are complicated in structure and poor in forming effect, so that the production requirements of high medical standards cannot be met.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a mask body forming mechanism which solves the technical problems of complex structure and poor forming effect of the mask body forming mechanism in the prior art.

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

a mask body forming mechanism, comprising: the nose bridge mechanism comprises a machine cabinet, a guide mechanism, a folding mechanism, a nose bridge strip mechanism and a welding forming mechanism, wherein the guide mechanism, the folding mechanism, the nose bridge strip mechanism and the welding forming mechanism are sequentially distributed on the machine cabinet; the guiding mechanism is used for tensioning and guiding the supplied materials at the previous station to the folding mechanism according to a preset stacking sequence, the folding mechanism is used for folding the middle of the stacked supplied materials, the nose bridge strip mechanism is used for conveying and cutting the nose bridge strip into preset lengths, and the welding forming mechanism is used for welding the supplied materials with the folded nose bridge strips and cutting the supplied materials into mask bodies with preset sizes.

Wherein, folding mechanism includes the coincide subassembly and carries out the subassembly that flattens once more to supplied materials after the coincide, the coincide subassembly includes first support arm and the second support arm that just sets up relatively, vertically be equipped with first compression roller and second compression roller between first support arm and the second support arm, be equipped with on first compression roller and the second compression roller and each other be reverse cone pulley, pass through as multilayer supplied materials first compression roller and second compression roller fold and press the back, form a plurality of folded layers at the middle part.

Wherein, the subassembly that flattens includes: the first supporting piece and the second supporting piece are respectively fixed on a workbench of the cabinet, the first supporting piece and the second supporting piece are distributed in a positive opposite mode, a plurality of first pressing sheets facing the direction of the second supporting piece are arranged on the first supporting piece, and a plurality of second pressing sheets facing the direction of the first supporting piece are arranged on the second supporting piece; the front end extension length of the first pressing piece is sequentially shortened from top to bottom, and the front end extension length of the second pressing piece is sequentially increased from top to bottom, so that the overlapped mark position overlapped by the overlapping assembly is subjected to plane pressing.

Wherein, the nose bridge mechanism includes: the nose bridge bucket is connected to the workbench of the cabinet, a first straightening wheel, a second straightening wheel, a shearing wheel and a nose bridge bucket positioned behind the shearing knife are arranged on the mounting plate, gears which are meshed with each other are arranged at one ends of the first straightening wheel, the second straightening wheel and the shearing wheel, and the gears are driven by a driving motor, so that the first straightening wheel, the second straightening wheel and the shearing wheel synchronously rotate; the nose bridge bucket comprises a nose bridge bucket, a first straightening wheel, a second straightening wheel, a shearing wheel, a first straightening wheel, a second straightening wheel, a third straightening wheel, a fourth straightening wheel.

Wherein, first straightener roller and second straightener roller structure is the same, all includes: the connecting shaft, locate the pinch roller of connecting shaft front end, the columnar side wall of pinch roller is equipped with a recess, the diapire of recess is equipped with anti-skidding tooth.

The nose bridge assembly comprises a mounting plate, a first straightening wheel, a second straightening wheel and a shearing wheel, wherein the mounting plate is further provided with a flat plate, the flat plate is located below the first straightening wheel, the second straightening wheel and the shearing wheel, and the flat plate is further provided with a plurality of groups of edge folding pieces which are distributed oppositely so as to ensure that the nose bridge strip moves to a welding forming mechanism together with a rear material after being folded.

Wherein, welding forming mechanism includes: the mask comprises a first supporting plate and a second supporting plate, wherein the second supporting plate is arranged in a positive phase opposite mode, a welding roller component, a first power roller, a cutter roller and a second power roller are sequentially arranged between the first supporting plate and the second supporting plate, the welding roller component performs welding on an incoming material after being overlapped and placed with a nose bridge strip, and the cutter roller cuts the incoming material after being welded into a mask body with a preset size.

Wherein, the welding roller assembly includes: the roller comprises a roller, a pressure wheel cylinder arranged in the middle of the roller and an ultrasonic welding device arranged in the pressure wheel cylinder; the outer surface of the pressing wheel cylinder is provided with a first welding tooth and a second welding tooth close to the end parts, a third welding tooth and a fourth welding tooth which are axially arranged close to the other end parts, and a nose bridge strip preformed groove is formed between the first welding tooth and the second welding tooth.

The first power roller comprises a first upper power roller and a first lower power roller which are longitudinally distributed, the cutter roller comprises an upper cutter roller and a lower cutter roller which are longitudinally distributed, the second power roller comprises a second upper power roller and a second lower power roller which are longitudinally distributed, and axial cutters are arranged on the surfaces of the upper cutter roller and/or the lower cutter roller.

Wherein, butt fusion forming mechanism's discharge gate still is equipped with a conveying mechanism, conveying mechanism includes: the conveyer belt, set up in the running roller of conveyer belt top to and the driving motor who drives the conveyer belt and remove.

Compared with the prior art, the mask body forming mechanism has the advantages that the integral structure is more simplified through redesigning the nose bridge strip mechanism and the welding forming mechanism, meanwhile, the forming quality of the mask body is improved, and the requirement of a higher standard is met.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more apparent, the following detailed description will be given of preferred embodiments.

Drawings

Fig. 1 is a schematic view of the overall structure of the mask body forming mechanism of the present invention.

Fig. 2 is a schematic structural view of a part of the overlapping assembly of the mask body forming mechanism of the present invention.

Fig. 3 is a schematic structural view of a flattening component of the mask body forming mechanism according to the present invention.

Fig. 4 is a schematic structural view of a nose bridge mechanism of the mask body forming mechanism of the present invention.

Fig. 5 is a schematic view of a part of the welding mechanism of the mask body forming mechanism according to the present invention.

Fig. 6 is a schematic structural view of a welding roller assembly of the mask body forming mechanism of the present invention.

Fig. 7 is a schematic structural view of a part of a conveying mechanism of the mask body forming mechanism of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

Referring to fig. 1 to 7, in the present embodiment, an embodiment of the invention provides a mask body forming mechanism, which includes: the nose bridge structure comprises a machine cabinet 21, a guide mechanism 22, a folding mechanism 03, a nose bridge strip mechanism 25 and a welding forming mechanism 02 which are sequentially distributed on the machine cabinet 21. The cabinet 21 is used for providing an installation fixing position for the electric control components, and power assemblies such as a driving motor and the like are arranged in the cabinet. The guide mechanism 22 is configured to tension and guide the incoming material from the previous station to the folding mechanism 03 according to a preset stacking sequence, specifically, as a forming process step of mask production, respectively stacking PP nonwoven cotton and meltblown fabric according to SMS and SMMMS, respectively, wherein the nonwoven cotton and meltblown fabric are independently rolled and transported by the material transport mechanism, and before folding, the incoming material of the nonwoven cotton and meltblown fabric needs to be directionally tensioned and guided. Folding mechanism 03 is used for folding the supplied materials middle part that stacks, nose bridge strip mechanism 25 is used for carrying and cuts into the supplied materials of nose bridge strip and predetermines length, butt fusion forming mechanism 02 is used for carrying out the butt fusion and cutting into the gauze mask body of setting for the size with the fold forming's supplied materials of placing nose bridge strip, and the gauze mask body is the part except for the ear line promptly.

The guiding mechanism 22 includes a pair of opposite supporting members connected to the worktable of the cabinet 21, and a plurality of rotating shafts connected between the supporting members and disposed in front of the feeding port of the folding mechanism 03.

Referring to fig. 2, the folding mechanism 03 includes a folding assembly 23 and a flattening assembly 24 for flattening the folded incoming material again, the folding assembly 23 includes a first supporting arm 231 and a second supporting arm 232 which are oppositely disposed, a first pressing roller 233 and a second pressing roller 234 are longitudinally disposed between the first supporting arm 231 and the second supporting arm 232,

tapered rollers

235 and 236 which are opposite to each other are disposed on the first pressing roller 233 and the second pressing roller 234, and when multiple layers of incoming materials pass through the first pressing roller 233 and the second pressing roller 234, multiple folded layers are formed in the middle. The bottom edges of the cone-

shaped wheels

235 and 236 are staggered with each other, and a gap is reserved for the mask body to pass through.

Referring again to fig. 3, the flattening assembly 24 includes: the first supporting member 241 and the second supporting member 242 are respectively fixed on the workbench of the cabinet 21, the first supporting member 241 and the second supporting member 242 are oppositely distributed, the first supporting member 241 is provided with a plurality of first pressing pieces 245 facing the direction of the second supporting member 242, and the second supporting member 242 is provided with a plurality of second pressing pieces 246 facing the direction of the first supporting member 241; the front end extension length of the first pressing plate 245 is sequentially shortened from top to bottom, and the front end extension length of the second pressing plate 246 is sequentially increased from top to bottom, so that the overlapped mark position overlapped by the overlapping assembly is subjected to plane pressing. Specifically, the front end of the first pressing piece 245 forms a regular step shape, the second pressing piece 246 matched with the first pressing piece forms a vertical step shape, and the overlapping marks on the top layer and the bottom layer of the multi-layer incoming material passing through the overlapping assembly 23 are respectively inserted and overlapped and pressed and flattened by the first pressing piece 245 and the second pressing piece 246. The first pressing plate 245 is connected to the first support 241 by a bolt 243, and the height of the first pressing plate 245 can be adjusted by adjusting the bolt. Similarly, the second presser 246 is adjustably connected to the second support 242 by another bolt 244.

Referring again to fig. 4, the nose bridge mechanism 25 includes: the mounting plate 252 is connected to the workbench of the cabinet 21, the mounting plate 252 is vertically fixed to the cabinet 21, the mounting plate 252 is provided with a first straightening wheel 253, a second straightening wheel 254 and a shearing wheel 255, and a nose bridge bucket 250 is arranged behind the shearing wheel 255, one end of each of the first straightening wheel 253, the second straightening wheel 254 and the shearing wheel 255 is provided with

gears

256, 257 and 258 which are meshed with each other, and one of the

gears

256, 257 and 258 is connected to a driving motor for driving, so that the first straightening wheel 253, the second straightening wheel 254 and the shearing wheel 255 rotate synchronously. The first straightening wheel 253 and the second straightening wheel 254 straighten and compress the nose bridge incoming material and convey the nose bridge incoming material to the shearing wheel, the shearing wheel 255 shears the straightened nose bridge incoming material into a nose bridge strip with a preset length, an axial shearing knife is arranged on the surface of the shearing wheel 255, the nose bridge strip with the local length of one mask is just sheared by rotating for a circle, and the nose bridge strip sheared to the set length enters the nose bridge hopper 250.

Referring again to fig. 4, the first straightening wheels 253 and the second straightening wheels 254 are the same in structure, and taking the first straightening wheels 253 as an example, the first straightening wheels include: the connecting shaft 2531 and the pressing wheel 2532 arranged at the front end of the connecting shaft 2531, wherein a groove 2533 is formed in the cylindrical side wall of the pressing wheel 2532, and anti-skidding teeth are arranged on the bottom wall of the groove 2533.

The mounting plate 252 is further provided with a flat plate 251, the flat plate 251 is located below the first straightening wheel 253, the second straightening wheel 254 and the shearing wheel 255, the flat plate 251 is further provided with a plurality of groups of edge folding pieces 259 which are distributed in a regular and opposite manner, so that two side edges of incoming materials are folded inwards and smoothly move to the welding forming mechanism 02, the edge folding pieces 259 are L-shaped blocking pieces fixedly connected to the flat plate 251 and are limited from two sides of multiple layers of incoming materials respectively, and the nose bridge strips are guaranteed to be conveyed to the welding mechanism 02 stably.

Referring again to fig. 5, the fusion molding mechanism 02 includes: first backup pad 021, with the second backup pad 022 of first backup pad 021 normal phase relative setting, be equipped with butt fusion roller components 26, first power gyro wheel 27, cutter gyro wheel 28 and second power gyro wheel 29 between first backup pad 021 and the second backup pad 022 in proper order, by butt fusion roller components 26 carries out the butt fusion to coincide and the supplied materials after placing the bridge of the nose strip, cuts into the gauze mask body of predetermineeing the size by the supplied materials after the butt fusion of cutter gyro wheel 28.

Specifically, as shown in fig. 6, the welding roller assembly 26 includes: a roller 262, a pinch roller 261 disposed in the middle of the roller 262, and an ultrasonic welding device disposed inside the pinch roller 261. A first welding tooth 2611 and a second welding tooth 2612 are arranged on the outer surface of the pressing wheel cylinder 261 close to one end, a third welding tooth 2614 and a fourth welding tooth 2613 are arranged on the other end close to the other end, and a nose bridge strip reservation groove is formed between the first welding tooth 2611 and the second welding tooth 2612. The number of first, second, and

third welding teeth

2611, 2612, 2614 can be increased as needed. According to the diameter size of the pressure wheel cylinder 261, the number of the third welding teeth 2613 is increased so as to rotate for a circle, and the multi-piece mask body is cut.

As shown in fig. 6, the first power roller 27 includes a first upper power roller 271 and a first lower power roller 272 which are longitudinally distributed, the cutter roller 28 includes an upper cutter roller 281 and a lower cutter roller 282 which are longitudinally distributed, the second power roller 29 includes a second upper power roller 291 and a second lower power roller 292 which are longitudinally distributed, and the surface of the upper cutter roller 281 and/or the lower cutter roller 282 is provided with an axial cutter. A gap slightly smaller than the thickness of the mask body is arranged between the first upper power roller 271 and the first lower power roller 272, and a gap slightly smaller than the thickness of the mask body is also arranged between the second upper power roller 291 and the second lower power roller 292, so that the mask body can be compressed and conveyed forwards. A pressing mechanism 023 is further disposed below the welding roller assembly 26 and used for matching with the pressing roller tube 261 to imprint dot patterns on the surface of the mask body.

Referring to fig. 7 again, the discharge port of the welding and forming mechanism 02 is further provided with a conveying mechanism 20, and the conveying mechanism 20 includes: the conveying belt 201, the roller 202 arranged above the conveying belt 201, and the driving motor 203 for driving the conveying belt 201 to move.

Compared with the prior art, a gauze mask body forming mechanism of this embodiment, through nose bridge strip mechanism, butt fusion forming mechanism's redesign makes overall structure more retrench, adopts ultrasonic welding device to carry out the knurling butt fusion around the gauze mask body simultaneously, has improved the shaping quality of gauze mask body, satisfies the requirement of higher standard.

The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.

Claims

1. A mask body forming mechanism, comprising: the nose bridge mechanism comprises a machine cabinet, a guide mechanism, a folding mechanism, a nose bridge strip mechanism and a welding forming mechanism, wherein the guide mechanism, the folding mechanism, the nose bridge strip mechanism and the welding forming mechanism are sequentially distributed on the machine cabinet; the guiding mechanism is used for tensioning the supplied materials at the previous station according to a preset stacking sequence and guiding the supplied materials to the folding mechanism, the folding mechanism is used for folding the middle of the stacked supplied materials, the nose bridge strip mechanism is used for conveying and cutting the nose bridge strip into preset lengths, and the welding forming mechanism is used for welding the supplied materials with the folded nose bridge strip and cutting the supplied materials into mask bodies with preset sizes.

2. The mask body forming mechanism according to claim 1, wherein the folding mechanism comprises a folding assembly and a flattening assembly for flattening the folded supplied material again, the folding assembly comprises a first supporting arm and a second supporting arm which are oppositely arranged, a first compression roller and a second compression roller are longitudinally arranged between the first supporting arm and the second supporting arm, the first compression roller and the second compression roller are provided with cone wheels which are opposite to each other, and when the multiple layers of supplied materials are overlapped through the first compression roller and the second compression roller, a plurality of folding layers are formed in the middle.

3. The mask body forming mechanism according to claim 2, wherein the flattening assembly comprises: the first supporting piece and the second supporting piece are respectively fixed on a workbench of the cabinet, the first supporting piece and the second supporting piece are distributed in a positive opposite mode, a plurality of first pressing sheets facing the direction of the second supporting piece are arranged on the first supporting piece, and a plurality of second pressing sheets facing the direction of the first supporting piece are arranged on the second supporting piece; the front end extension length of the first pressing piece is sequentially shortened from top to bottom, and the front end extension length of the second pressing piece is sequentially increased from top to bottom, so that the overlapped mark position overlapped by the overlapping assembly is subjected to plane pressing.

4. The mask body forming mechanism according to claim 1, wherein the nose bridge mechanism comprises: the nose bridge bucket is connected with a workbench of the cabinet, a first straightening wheel, a second straightening wheel, a shearing wheel and a nose bridge bucket positioned behind the shearing wheel are arranged on the mounting plate, gears which are meshed with each other are arranged at one ends of the first straightening wheel, the second straightening wheel and the shearing wheel, and the gears are driven by a driving motor, so that the first straightening wheel, the second straightening wheel and the shearing wheel synchronously rotate; the nose bridge bucket comprises a nose bridge bucket, a first straightening wheel, a second straightening wheel, a shearing wheel, a first straightening wheel, a second straightening wheel, a third straightening wheel, a fourth straightening wheel.

5. The mask body forming mechanism according to claim 4, wherein the first straightening wheel and the second straightening wheel have the same structure and each comprise: the connecting shaft, locate the pinch roller of connecting shaft front end, the columnar side wall of pinch roller is equipped with a recess, the diapire of recess is equipped with anti-skidding tooth.

6. The mask body forming mechanism according to claim 4, wherein a flat plate is further disposed on the mounting plate, the flat plate is disposed below the first straightening wheel, the second straightening wheel and the shearing wheel, and a plurality of sets of overlapping edge pieces are disposed on the flat plate in a regular and opposite distribution, so that the nose bridge strip is wrapped by the edge portion of the mask body.

7. The mask body forming mechanism according to claim 1, wherein the welding forming mechanism comprises: the mask comprises a first supporting plate and a second supporting plate, wherein the second supporting plate is arranged in a positive phase opposite mode, a welding roller component, a first power roller, a cutter roller and a second power roller are sequentially arranged between the first supporting plate and the second supporting plate, incoming materials placed behind a nose bridge strip are welded by the welding roller component, and the mask body with the preset size is cut by the cutter roller.

8. The mask body molding mechanism according to claim 7, wherein the welding roller assembly comprises: the roller comprises a roller, a pressure wheel cylinder arranged in the middle of the roller and an ultrasonic welding device arranged in the pressure wheel cylinder; the outer surface of the pressing wheel cylinder is provided with a first welding tooth and a second welding tooth close to the end parts, a third welding tooth and a fourth welding tooth which are axially arranged close to the other end parts, and a nose bridge strip preformed groove is formed between the first welding tooth and the second welding tooth.

9. The mask body forming mechanism according to claim 7, wherein the first power roller comprises a first upper power roller and a first lower power roller which are longitudinally distributed, the cutter roller comprises a first upper cutter roller and a first lower cutter roller which are longitudinally distributed, the second power roller comprises a second upper power roller and a second lower power roller which are longitudinally distributed, and an axial cutter is arranged on the surface of the upper cutter roller and/or the lower cutter roller.

10. The mask body forming mechanism according to claim 1, wherein a delivery mechanism is further provided at the outlet of the welding forming mechanism, and the delivery mechanism comprises: the conveyer belt, set up in the running roller of conveyer belt top to and the driving motor who drives the conveyer belt and remove.