CN212293867U

CN212293867U - Laminated melt-blown die head

Info

Publication number: CN212293867U
Application number: CN202020570155.XU
Authority: CN
Inventors: 黄向明
Original assignee: Quanzhou Ndc Spray Coating System Fabricating Co ltd
Current assignee: Quanzhou Ndc Spray Coating System Fabricating Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-01-05
Anticipated expiration: 2030-04-16

Abstract

The utility model relates to a melt-blown non-woven cloth equipment technical field, especially a lamination formula melt-blown die head. This kind of lamination formula melt-blown die head, which comprises a base, spray the module, be equipped with the material chamber in the base, spray the module and install on the base, spray the module and include two grip blocks, locate a plurality of clamping pieces in two grip blocks, be equipped with the feed port that communicates to the material chamber on the grip block, a plurality of clamping piece combinations are ejection of compact clamping piece group, homogenization clamping piece group, ejection of compact clamping piece group is including a tablet, locate the clamping piece of ejection of compact piece both sides, a plurality of intercommunication mouths have been seted up on the clamping piece, intercommunication mouth and the overlapping setting in play chute upper portion, homogenization clamping piece group is including the reposition of redundant personnel piece, locate the diffusion piece of reposition of redundant personnel piece both sides, be equipped with the reposition of redundant personnel hole that a plurality of densely. The utility model discloses spout the silk evenly, be convenient for wash, maintain.

Description

Laminated melt-blown die head

Technical Field

The utility model relates to a melt-blown non-woven cloth equipment technical field, especially a lamination formula melt-blown die head.

Background

The melt-blown nonwoven process refers to a process in which a fine stream of polymer melt extruded from a spinneret orifice of a die is drawn by high-speed hot air, thereby forming ultrafine fibers and spraying them on a collecting device, and further bonding by itself to form a nonwoven fabric. The melt-blowing device is the main equipment for melt-blowing operation, and its main component is a die head component for blowing out fibre by utilizing hot air, and on the die head component a spinning slit including several spinning nozzles is set, and used for blowing out fibre. The existing melt-blowing die head assembly is mostly formed by an upper die and a lower die, the spinning effect is not ideal, the uniformity is not good, and the quality of produced filaments can not meet the requirement easily; after the melt-blowing die head is used, the melt remained in the melt-blowing die head always generates local carbonization or hardening so as to cause local blockage of a spinneret orifice of the melt-blowing die head, and the cleaning is inconvenient; when the melt-blowing die head assembly breaks down, the maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to overcome the defects of the prior art and provide a laminated melt-blown die head which has uniform spinning and is convenient to clean and maintain.

In order to achieve the above object, the utility model adopts the following technical scheme:

a laminated melt-blown die head comprises a base and a jet module, wherein a material cavity is arranged in the base, the jet module is arranged on the base and comprises two clamping blocks and a plurality of clamping pieces arranged in the two clamping blocks, a feeding hole communicated to the material cavity is formed in each clamping block, the clamping pieces are combined into a discharging clamping piece group and a homogenizing clamping piece group, each discharging clamping piece group comprises a discharging piece and clamping pieces arranged on two sides of the discharging piece, a plurality of discharging grooves penetrating through the discharging piece in the front and back direction and provided with openings at the bottom are formed in the lower portions of the discharging pieces, the two clamping pieces are tightly clamped to form a plurality of jet ports, a plurality of communicating ports are formed in the clamping pieces and overlapped with the upper portions of the discharging grooves, each homogenizing clamping piece group comprises a splitter plate and a plurality of diffusion pieces arranged on two sides of the splitter plate in a densely distributed manner, diffusion holes are formed in the diffusion pieces, and a diffusion cavity is formed after clamping, two ends of the shunting hole are respectively communicated with the diffusion cavities at two sides, the diffusion cavity at one side is communicated with the feeding hole of the clamping block, and the diffusion cavity at the other side is communicated with the communication port of the clamping sheet, so that the material cavity is communicated with the jet orifice.

Furthermore, the homogenization clamping piece groups are provided with two groups, the two groups of homogenization clamping piece groups are respectively arranged at two sides of the discharge clamping piece group, the injection ports formed by the discharge grooves of the discharge pieces are divided into high-pressure gas injection ports and molten liquid injection ports, the material cavity of the base comprises a gas cavity and a liquid cavity, the feeding hole of the clamping block is correspondingly divided into a gas inlet hole and a liquid inlet hole, the gas cavity enters from the gas inlet hole and is communicated with the high-pressure gas injection ports through one group of homogenization clamping piece groups, and the liquid cavity enters from the liquid inlet hole and is communicated with the molten liquid injection ports through the other group of.

Furthermore, a group of injection port groups are formed by three adjacent injection ports, the injection port positioned in the middle is a molten liquid injection port, and the discharge grooves on two sides forming the high-pressure gas injection port are inclined towards the bottom of the middle discharge groove forming the molten liquid injection port.

Further, in a group of ejection port groups, the melt ejection port located in the middle has a downwardly convex structure with respect to the high-pressure gas ejection ports on both sides.

Furthermore, the discharging groove of the material discharging sheet for forming the molten liquid jet opening is provided with a first convex part which protrudes downwards, the corresponding positions of the two clamping sheets are provided with second convex parts which protrude downwards, and the first convex part is clamped between the two second convex parts to form a downward convex structure of the molten liquid jet opening.

Furthermore, the high-pressure air injection port is communicated with the homogenization clamp group positioned on the inner side, the clamp pieces further comprise flow deflectors, the flow deflectors are arranged on the outer side of the homogenization clamp group positioned on the outer side, flow guide holes corresponding to the positions of the clamp pieces are arranged on the clamp pieces, the flow guide holes are combined to form flow guide cavities, the flow guide holes in the flow deflectors are provided with extension parts, the extension parts are partially overlapped with the diffusion holes of the adjacent diffusion pieces, and the melt injection port is communicated into the homogenization clamp group positioned on the outer side through the flow guide cavities.

Furthermore, the injection module also comprises a first locking bolt and a second locking bolt, wherein the clamping block and each clamping piece positioned on the outer side are provided with first assembling through holes corresponding to the positions of the clamping pieces, the clamping block positioned on the inner side is provided with a first assembling screw hole, and the first locking bolt penetrates through each first assembling through hole and is connected with the first assembling screw hole so as to clamp each clamping piece between the two clamping blocks; and the two clamping blocks and the clamping pieces are provided with second assembling through holes, the base is provided with second assembling screw holes, and second locking bolts penetrate through the second assembling through holes to be connected with the second assembling screw holes so as to lock the injection module on the base.

Furthermore, the injection module further comprises a third locking bolt, each clamping piece is provided with a third assembling perforation, a third assembling screw hole is formed in the clamping block positioned on the inner side, the third locking bolt penetrates through each third assembling perforation and is connected with the third assembling screw hole so as to pre-lock each clamping piece on the inner side clamping block, and the outer side clamping block is provided with a yielding groove corresponding to the third locking bolt.

Furthermore, the upper side of each clamping piece is provided with a schematic groove for indicating the arrangement sequence.

Furthermore, the spraying modules are provided with a plurality of spraying modules, the spraying modules are sequentially arranged close to the base, and the spraying ports formed by the spraying modules are arranged in a linear direction.

It can be known from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are:

firstly, a plurality of clamping pieces are adopted to form a spraying module, so that airflow and melt are uniformly differentiated for multiple times to meet the requirements of spinning airflow on a production process, and the spinning is uniform;

secondly, high-pressure gas injection ports are arranged on two sides of each molten liquid injection port, so that the problems of insufficient gas flow stretching force, adhesion of melt on an injection module, unsmooth spinning caused by uneven gas flow distribution and the like can be solved;

thirdly, the injection module is detachably arranged on the base, each clamping block and each clamping piece are installed through bolts, and when material blockage occurs or damage occurs, disassembly and replacement are convenient, and installation and maintenance are convenient.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a laminated melt-blowing die according to an embodiment of the present invention.

Fig. 2 is a first exploded view of the injection module according to the embodiment of the present invention.

Fig. 3 is a second exploded view of the injection module according to the embodiment of the present invention.

Fig. 4 is a third exploded view of the injection module according to the embodiment of the present invention.

Fig. 5 is a schematic view of the overall structure of the injection module according to the embodiment of the present invention.

In the figure: 1. base, 11, material cavity, 111, air cavity, 112, liquid cavity, 2, injection module 21, clamping block, 211, feed hole, 2111, air inlet hole, 2112, liquid inlet hole, 212, first assembly through hole, 213, first assembly screw hole, 214, second assembly through hole, 215, second assembly screw hole, 216, third assembly through hole, 217, third assembly screw hole, 218, offset groove, 22, clamping piece, 221, flow guide hole, 2211, extension, 222, flow guide cavity, 223, schematic groove, 23, discharge clamping piece group, 231, discharge piece, 2311, discharge groove, 2312, first protrusion, 2313, second protrusion, 232, clamping piece, 2321, communication port, 233, injection port, 2331, high pressure air injection port, 2332,

melt injection port

243, 24, homogenization clamping piece group, 241, flow splitter, 2411, flow split flow hole, 242, diffusion piece, 1, diffusion hole, 24225, diffusion block, 26, 27. second locking bolt, 28 third locking bolt.

Detailed Description

The present invention will be further described with reference to the following detailed description.

Referring to fig. 1 to 5, the utility model discloses a lamination type melt-blowing die head, including base 1, injection module 2.

The injection module 2 is arranged on the base 1, the injection module 2 comprises two clamping blocks 21 and a plurality of clamping pieces 22 arranged in the clamping blocks 21, a feeding hole 211 communicated with the material cavity 11 is arranged on the clamping block 21, the clamping pieces 22 are combined into a material outlet clamping piece group 23 and a homogenizing clamping piece group 24, the material outlet clamping piece group 23 comprises a material outlet piece 231 and clamping pieces 232 arranged on two sides of the material outlet piece 231, a plurality of material outlet grooves 2311 which penetrate through in the front and back direction and are opened at the bottoms are arranged on the lower portion of the material outlet piece 231, a plurality of injection ports 233 are formed by tightly clamping the two clamping pieces 232, a plurality of communication ports 2321 are arranged on the clamping pieces 232, the communication ports 2321 are overlapped with the upper portion of the material outlet grooves 2311, the homogenizing clamping piece group 24 comprises a shunting piece 241 and a diffusion piece 242 arranged on two sides of the shunting piece 241, a plurality of densely distributed shunting holes 2411 are arranged on the shunting piece 241, diffusion holes 2421 are arranged on the diffusion piece 242, two ends of the diversion hole 2411 are respectively communicated to the diffusion cavities 243 at two sides, the diffusion cavity 243 at one side is communicated with the feeding hole 211 of the clamping block 21, the diffusion cavity 243 at the other side is communicated with the communication port 2321 of the clamping sheet 232, and then the material cavity 11 is communicated with the injection port 233.

The plurality of spraying modules 2 are arranged, each spraying module 2 is arranged close to the base 1 in sequence, and the spraying ports 233 formed by each spraying module 2 are arranged in a linear direction. The homogenizing clamp groups 24 are provided with two groups, the two groups of homogenizing clamp groups 24 are respectively arranged at two sides of the discharging clamp group 23, the injection ports 233 formed by the discharging grooves 2311 of the discharging sheets 231 are divided into a high-pressure gas injection port 2331 and a molten liquid injection port 2332, the material cavity 11 of the base 1 comprises an air cavity 111 and a liquid cavity 112, the feeding hole 211 of the clamping block 21 is correspondingly divided into an air inlet hole 2111 and a liquid inlet hole 2112, the air cavity 111 enters from the air inlet hole 2111 and is communicated with the high-pressure gas injection port 2331 through one group of homogenizing clamp groups 24, and the liquid cavity 112 enters from the liquid inlet hole 2112 and is communicated with the molten liquid injection port 2332 through the; the three adjacent jet ports 233 form a group of jet port groups, the jet port positioned in the middle is a melt jet port 2332, the jet ports positioned at both sides are high-pressure gas jet ports 2331, the discharge grooves 2311 at both sides forming the high-pressure gas jet ports 2331 are inclined towards the bottom of the discharge groove 2311 in the middle forming the melt jet port 2332, so that the air flow can act on the melt sprayed out from the melt jet port 2332; among the group of ejection openings, the melt ejection opening 2332 located in the middle has a downwardly convex structure with respect to the high-pressure gas ejection openings 2331 located at both sides; the discharge groove 2311 of the discharge piece 231 forming the melt ejection port 2332 has a first protrusion 2312 protruding downward, and the two sandwiching pieces 232 are provided at corresponding positions with second protrusions 2313 protruding downward, and the first protrusion 2312 is sandwiched between the two second protrusions 2313 to form a downward protruding structure of the melt ejection port 2332. The high-pressure gas injection port 2331 is communicated with the homogenization clamp group 24 positioned on the inner side, the clamping pieces 22 further comprise flow deflectors 25, the flow deflectors 25 are arranged on the outer side of the homogenization clamp group 24 positioned on the outer side, flow guide holes 221 corresponding to the positions are arranged on each clamping piece 22, each flow guide hole 221 is combined to form a flow guide cavity 222, each flow guide hole 221 on each flow deflector 25 is provided with an extending part 2211, each extending part 2211 is partially overlapped with a diffusion hole 2421 of the adjacent diffusion piece 242, and the melt injection port 2332 is communicated into the homogenization clamp group 24 positioned on the outer side through the flow guide cavity 222.

The injection module 2 further comprises a first locking bolt 26 and a second locking bolt 27, the clamping block 21 and each clamping piece 22 positioned on the outer side are respectively provided with a first assembling through hole 212 corresponding to the position, the clamping block 21 positioned on the inner side is provided with a first assembling screw hole 213, and the first locking bolt 26 penetrates through each first assembling through hole 212 and is connected with the first assembling screw hole 213 so as to clamp each clamping piece 22 between the two clamping blocks 21; the two clamping blocks 21 and the clamping pieces 22 are provided with second assembling through holes 214, the base 1 is provided with second assembling screw holes 215, and the second locking bolts 27 penetrate through the second assembling through holes 214 and are connected with the second assembling screw holes 215 so as to lock the injection module 2 on the base 1; the injection module 2 further comprises third locking bolts 28, each clamping piece 22 is provided with a third assembling through hole 216, the clamping block 21 positioned on the inner side is provided with a third assembling screw hole 217, the third locking bolts 28 penetrate through the third assembling through holes 216 and are connected with the third assembling screw holes 217 so as to pre-lock each clamping piece 22 on the inner side clamping block 21, and the outer side clamping block 21 is provided with a abdicating groove 218 corresponding to the third locking bolt 28; the upper side of each clip 22 is provided with a schematic groove 223 for indicating the arrangement sequence, the schematic groove 223 is in a structure from narrow to wide from the inner clip 22 to the outer clip 22, and each clip 22 determines the respective arrangement sequence through the schematic groove 223 so as to be convenient for installation.

The clamping pieces 22 are arranged in a fit manner according to the indication of the indication groove 223, and the clamping pieces 22 are connected with the third assembly screw holes 217 through the third assembly through holes 216 through the third locking bolts 28 so as to pre-lock the clamping pieces 22 on the inner clamping block 21; then, the first locking bolt 26 is connected with the first assembling screw hole 213 through each first assembling through hole 212 to clamp each clamping piece 22 between the two clamping blocks 21; finally, the injection module 2 is fastened to the base 1 by the second fastening bolts 27 passing through the respective second fitting through holes 214 and the second fitting screw holes 215. When the spraying module 2 is in failure, the spraying module 2 can be detached for maintenance through the second locking bolt 27, and a new spraying module 2 is replaced, so that the problem that the whole melt-blown die head enters a factory for maintenance due to the failure of a certain part is avoided, and the production schedule and the production efficiency of equipment are influenced; when the melt blowing die head is blocked, the spraying module 2 can be detached for cleaning.

The working principle of the laminated melt-blowing die head is as follows:

the air flow enters the diffusion cavity 243 of the diffusion sheet 242 through the air cavity 111 and the air inlet holes 2111 of the clamping block 21 in sequence, the air flow is completely distributed in the diffusion cavity 243, and is uniformly distributed and circulated to the diffusion cavity 243 on the other side of the splitter 241 through the plurality of splitter holes 2411 on the splitter 241; a plurality of pairs of communication ports 2321 are formed on the clamping sheet 232 between the homogenizing clamping sheet group 24 and the discharging clamping sheet group 23 on the inner side, each pair of communication ports 2321 is respectively communicated with the high-pressure gas injection port 2331 of each injection port group, namely, the communication ports 2321 are overlapped with the upper part of the discharging groove 2311 forming the high-pressure injection port 2331, so that the airflow is uniformly divided by the communication ports 2321 and is injected through each high-pressure gas injection port 2331;

the melt passes through the liquid cavity 112, the liquid inlet hole 2112 of the clamping block 21 and the flow guide cavity 222 in sequence, and enters the diffusion cavity 243 of the homogenization clamp group 24 positioned at the outer side from the extension part 2211 of the flow guide sheet 25, the melt is completely distributed in the diffusion cavity 243, and is uniformly distributed and circulated to the diffusion cavity 243 at the other side of the flow guide sheet 241 through a plurality of flow distribution holes 2411 on the flow distribution sheet 241; a plurality of communication ports 2321 communicated with the melt injection port 2332 are formed in the clamping sheet 232 between the homogenizing clamping sheet group 24 and the discharging clamping sheet group 23 on the outer side, namely the communication ports 2321 are overlapped with the upper part of the discharging groove 2311 forming the melt injection port 2332, so that the melt is uniformly divided by the communication ports 2321 and is injected through the melt injection port 2332;

the discharge grooves 2311 on both sides forming the high-pressure gas injection port 2331 are inclined towards the bottom of the middle discharge groove 2311 forming the molten liquid injection port 2332, namely, the molten liquid is vertically and downwards injected from the molten liquid injection port 2332, the airflow is uniformly blown towards the injected molten liquid from the high-pressure gas injection port 2331 at a high speed, and the airflow acts on the injected molten liquid to rapidly stretch, solidify and form the molten liquid in a high-power manner.

The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, and the present invention is to be used for insubstantial modification of the present invention, which all infringes the protection scope of the present invention.

Claims

1. A laminated melt-blowing die head is characterized in that: the spray nozzle comprises a base and a spray module, wherein a material cavity is arranged in the base, the spray module is arranged on the base and comprises two clamping blocks and a plurality of clamping pieces arranged in the two clamping blocks, a feeding hole communicated with the material cavity is formed in the clamping blocks, the clamping pieces are combined into a material outlet clamping piece group and a homogenizing clamping piece group, the material outlet clamping piece group comprises a material outlet piece and clamping pieces arranged on two sides of the material outlet piece, a plurality of material outlet grooves which are penetrated through from front to back and are provided with openings at the bottom are formed in the lower part of the material outlet piece, the two clamping pieces are tightly clamped to form a plurality of spray nozzles, a plurality of communication ports are formed in the clamping piece, the communication ports are overlapped with the upper part of the material outlet groove, the homogenizing clamping piece group comprises a splitter plate and diffusion pieces arranged on two sides of the splitter plate, a plurality of densely distributed splitter holes are formed in the diffusion piece, two ends of the shunting hole are respectively communicated with the diffusion cavities at two sides, the diffusion cavity at one side is communicated with the feeding hole of the clamping block, and the diffusion cavity at the other side is communicated with the communication port of the clamping sheet, so that the material cavity is communicated with the jet orifice.

2. The laminated meltblowing die of claim 1, wherein: the homogenizing clamping piece sets are provided with two sets, the two sets of homogenizing clamping piece sets are respectively arranged on two sides of the discharging clamping piece set, the jet ports formed by the discharging groove of the discharging piece are divided into high-pressure gas jet ports and molten liquid jet ports, the material cavity of the base comprises a gas cavity and a liquid cavity, the feeding hole of the clamping block is correspondingly divided into a gas inlet hole and a liquid inlet hole, the gas cavity enters from the gas inlet hole and is communicated with the high-pressure gas jet ports through one set of homogenizing clamping piece sets, and the liquid cavity enters from the liquid inlet hole and is communicated with the molten liquid jet ports through the other.

3. The laminate meltblowing die of claim 2, wherein: the three adjacent jet ports form a group of jet port groups, the jet port positioned in the middle is a molten liquid jet port, and the discharge grooves on the two sides forming the high-pressure gas jet port are inclined towards the bottom of the middle discharge groove forming the molten liquid jet port.

4. The laminated meltblowing die of claim 3, wherein: in one group of the ejection port groups, the melt ejection port located in the middle has a downwardly convex structure with respect to the high-pressure gas ejection ports on both sides.

5. The laminated meltblowing die of claim 4, wherein: the discharging groove of the material discharging sheet for forming the molten liquid jet opening is provided with a first protruding part protruding downwards, the corresponding positions of the two clamping sheets are provided with second protruding parts protruding downwards, and the first protruding part is clamped between the two second protruding parts to form a downward protruding structure of the molten liquid jet opening.

6. The laminate meltblowing die of claim 2, wherein: the high-pressure air injection port is communicated with the homogenization clamp group positioned on the inner side, the clamp pieces further comprise flow deflectors, the flow deflectors are arranged on the outer side of the homogenization clamp group positioned on the outer side, flow guide holes corresponding to the positions are formed in each clamp piece, each flow guide hole is combined to form a flow guide cavity, the flow guide holes in the flow deflectors are provided with extending portions, the extending portions are partially overlapped with diffusion holes of adjacent diffusion pieces, and the melt injection port is communicated into the homogenization clamp group positioned on the outer side through the flow guide cavities.

7. The laminated meltblowing die of claim 1, wherein: the injection module further comprises a first locking bolt and a second locking bolt, wherein the clamping block positioned on the outer side and each clamping piece are provided with a first assembling through hole corresponding to the position, the clamping block positioned on the inner side is provided with a first assembling screw hole, and the first locking bolt penetrates through each first assembling through hole and is connected with the first assembling screw hole so as to clamp each clamping piece between the two clamping blocks; and the two clamping blocks and the clamping pieces are provided with second assembling through holes, the base is provided with second assembling screw holes, and second locking bolts penetrate through the second assembling through holes to be connected with the second assembling screw holes so as to lock the injection module on the base.

8. The laminated meltblowing die of claim 7, wherein: the injection module further comprises third locking bolts, third assembly through holes are formed in the clamping pieces, third assembly screw holes are formed in the clamping blocks located on the inner side, the third locking bolts penetrate through the third assembly through holes and are connected with the third assembly screw holes so as to pre-lock the clamping pieces on the inner side clamping blocks, and the clamping blocks located on the outer side are provided with abdicating grooves corresponding to the third locking bolts.

9. The laminated meltblowing die of claim 1, wherein: and the upper side of each clamping piece is provided with a schematic groove for indicating the arrangement sequence.

10. The laminated meltblowing die of claim 1, wherein: the spraying modules are provided with a plurality of spraying modules, the spraying modules are arranged close to the base in sequence, and the spraying ports formed by the spraying modules are arranged in a linear direction.