CN114134664A - Environment-friendly flame-retardant sofa fabric and preparation method and device thereof - Google Patents
Environment-friendly flame-retardant sofa fabric and preparation method and device thereof Download PDFInfo
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- CN114134664A CN114134664A CN202111347749.XA CN202111347749A CN114134664A CN 114134664 A CN114134664 A CN 114134664A CN 202111347749 A CN202111347749 A CN 202111347749A CN 114134664 A CN114134664 A CN 114134664A
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- melt adhesive
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- 239000004744 fabric Substances 0.000 title claims abstract description 56
- 239000003063 flame retardant Substances 0.000 title claims abstract description 39
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 82
- 238000002156 mixing Methods 0.000 claims abstract description 74
- 239000004831 Hot glue Substances 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000013329 compounding Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000000605 extraction Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 27
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 23
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 4
- 239000010902 straw Substances 0.000 claims description 4
- 238000013008 moisture curing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000004026 adhesive bonding Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000004132 cross linking Methods 0.000 abstract description 4
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011049 filling Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000007761 roller coating Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
- D06B23/205—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for adding or mixing constituents of the treating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/02—Rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
- B32B2037/1215—Hot-melt adhesive
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Nozzles (AREA)
Abstract
The invention discloses an environment-friendly flame-retardant sofa fabric and a preparation method and a device thereof, and particularly relates to the technical field of sofa fabric preparation, which comprises the following steps; mixing the PUR hot melt adhesive and the fire retardant liquid by using a hot melt adhesive compounding machine, and discharging internal air water vapor by injecting nitrogen during mixing to ensure that the nitrogen is injected to form isolated air, thereby forming a pollution-free mixing environment; and step two, covering the single-face velvet base cloth on the bottommost layer. The invention adopts the protection mechanism to close the vacuum extractor and then seal the extraction pipe, thus filling nitrogen into the mixing box, effectively isolating air and water vapor, being capable of carrying out longer, more precise and more effective mixing/compounding operation, being beneficial to the mixing of the PUR hot melt adhesive and the fire retardant liquid, leading the mixed liquid to be dispersed evenly and stably, improving the application adhesion effect and the flame retardant effect of the mixed liquid, and in the mixing stage or the gluing stage, the invention can avoid the contact of the PUR hot melt adhesive and the water vapor/air, thereby avoiding unnecessary reaction crosslinking solidification, simultaneously avoiding the possible oxidation of the PUR hot melt adhesive in the melting and heating state, leading the product to be more durable, and in addition, the invention can carry out detection when the nitrogen overflows, avoiding the waste caused by the overflow of the nitrogen, and saving the cost of the nitrogen more.
Description
Technical Field
The invention relates to the technical field of sofa fabric preparation, in particular to an environment-friendly flame-retardant sofa fabric and a preparation method and device thereof.
Background
The sofa fabric is a general name or a short name of a main textile covering used in the sofa manufacturing process, and in the manufacturing process of the sofa fabric with a composite structure, a hot glue compounding machine can be used for performing roller coating operation, so that glue can be uniformly covered on sizing coating, and PUR hot melt glue is used for compositely bonding sofa surface cloth and base cloth.
In the prior art, the PUR hot melt adhesive is influenced by water vapor and air in the mixing process, so that the PUR hot melt adhesive can be skinned when encountering water vapor/air in the stages of melting, mixing, discharging and roller coating in the using process. Under the conventional process, in order to avoid long-time water vapor/air contact of the PUR, the mixing of the PUR hot melt adhesive and other materials (such as flame retardant liquid) is usually completed quickly in a short time, the materials are quickly discharged and rolled in a short time, so that the materials are not uniformly mixed, the mixed materials are also likely to be non-uniformly adhered and have poor adhesion effect when being coated, and in addition, the PUR hot melt adhesive layer is also likely to be oxidized due to the influence of air and heating, so that the internal color difference is large, the normal use of the sofa fabric is affected, and the sofa fabric is also easy to fall off. For the flame retardant property of sofa fabric, the existing PUR hot melt adhesive compounding process is difficult to meet the relevant requirements.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the invention provides an environment-friendly flame-retardant sofa fabric and a preparation method and a device thereof, the invention adopts a protection mechanism, avoids the influence of air and water vapor, can carry out more time, more precise and more effective mixing/compounding operation, is beneficial to the mixing of PUR hot melt adhesive and flame retardant liquid, ensures that the mixed liquid is uniformly and stably dispersed, improves the application adhesion effect and the flame retardant effect of the mixed liquid, and can avoid the contact of the PUR hot melt adhesive and the water vapor/air in the mixing stage or the gluing stage, thereby avoiding unnecessary reaction crosslinking and solidification, simultaneously avoiding the possible oxidation of the PUR hot melt adhesive in a melting and heating state, ensuring that the product is more durable, in addition, the detection can be carried out when the nitrogen overflows, avoiding the waste caused by too much overflowing of the nitrogen, and saving the cost of the nitrogen more, to solve the problems set forth in the background art described above.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of an environment-friendly flame-retardant sofa fabric comprises the following steps;
mixing the PUR hot melt adhesive and the fire retardant liquid by using a hot melt adhesive compounding machine, and discharging internal air water vapor by injecting nitrogen during mixing to ensure that the nitrogen is injected to form isolated air, thereby forming a pollution-free mixing environment;
secondly, covering the single-sided velvet base fabric on the bottommost layer, coating the mixed liquid on the single-sided velvet base fabric through a hot melt adhesive compounding machine, then attaching the sofa shell fabric to the single-sided velvet base fabric, rolling, compacting, placing for 8-24 hours for moisture curing of PUR hot melt adhesive, and realizing bonding of the sofa shell fabric and the single-sided velvet base fabric through the mixed liquid of the PUR hot melt adhesive and the fire retardant liquid;
and step three, removing burrs of the semi-finished product of the environment-friendly flame-retardant sofa fabric by using a cutting machine according to the standard size, checking the burrs by using personnel, determining whether the burrs are uniform, cutting the size according to the packaging requirement after the burrs are uniform to be checked, and packaging the cut size into boxes to obtain the environment-friendly flame-retardant sofa fabric product.
The environment-friendly flame-retardant sofa fabric preparation device comprises a mixing box, wherein an air inlet pipe is arranged on one side of the mixing box, and a protection mechanism is arranged at one end of the air inlet pipe;
protection mechanism is including setting up the first electric control valve in intake pipe one end, first connecting pipe is installed to first electric control valve one end, first connecting pipe bottom is connected with the nitrogen gas compression jar, mixing box top threaded connection has the apron, the suction tube is installed in the embedding of apron top, nitrogen gas test probe is installed in suction tube one side embedding, nitrogen gas test probe one end is installed the nitrogen gas detector, the evacuation ware is installed on the suction tube top, the evacuation ware output is connected with the extraction pipe.
In a preferred embodiment, a plurality of resistance heating rods are embedded at the top end of the mixing box and positioned outside the cover plate, and the resistance heating rods are fixedly connected with the cover plate.
In a preferred embodiment, the mixing box internally mounted has mixing mechanism, mixing mechanism is including setting up the back flow in the mixing box inside, back flow one end is connected with down the spray tube, the spray tube bottom is annular equidistance down and is provided with a plurality of shower nozzles down, second electric control valve is installed to the back flow other end, second electric control valve one end is connected with the second connecting pipe, second connecting pipe one side is provided with the output tube, third electric control valve is installed to output tube one end, the suction pump machine is installed to second connecting pipe bottom, the suction pump machine input is connected with the backward flow straw, the backward flow straw bottom is connected with annular collection pipe, a plurality of ends are installed to annular collection pipe bottom.
In a preferred embodiment, a plurality of inclined reamers are installed inside the annular collecting pipe, one side of each inclined reamer is connected with a folded reamer, the bottom end of each inclined reamer is connected with a driving rod, a first belt pulley is installed at the bottom end of the driving rod, a second belt pulley is arranged on one side of the first belt pulley, a rear driving belt is sleeved outside the second belt pulley, and a driving motor is installed at the bottom end of the second belt pulley.
In a preferred embodiment, a plurality of the inclined reamers are arranged in an annular equidistant arrangement, and the first belt pulley is fixedly connected with the driving rod.
In a preferred embodiment, a collection spray pipe is installed at one end of the third electrically-controlled valve, a plurality of arc-shaped spray heads are arranged at the top end of the collection spray pipe, an adjusting support plate is arranged on one side of the collection spray pipe, an adjusting shaft rod is arranged inside the adjusting support plate, a hinge block is connected to the bottom end of the adjusting support plate, a pulling rod is connected to one side of the hinge block, and a pulling cylinder is installed at one end of the pulling rod.
In a preferred embodiment, the adjusting support plate is movably connected with the adjusting shaft rod, and the hinge block is movably connected with the pulling rod.
In a preferred embodiment, one side of the arc-shaped spray head is provided with a plurality of coating rollers which are arranged at equal intervals, and one end of each coating roller is provided with a driving box.
The invention has the technical effects and advantages that:
1. the invention adopts the protection mechanism to start the vacuum extractor to lead the suction pipe to suck out the air in the mixing box, then opens the first electric control valve, the nitrogen in the nitrogen compression tank is input into the first connecting pipe to carry out filling operation, when the nitrogen is full and overflows into the suction pipe, the nitrogen detection probe detects the nitrogen, then the vacuum extractor is closed and the suction pipe is sealed, thus the nitrogen can be filled in the mixing box to effectively isolate the air and the water vapor, the mixing/compounding operation can be carried out for a longer time, more finely and more effectively, the mixing of the PUR hot melt adhesive and the fire retardant liquid is facilitated, the mixed liquid is dispersed uniformly and stably, the application adhesion effect and the fire retardant effect of the mixed liquid are improved, and in the mixing stage or the gluing stage, the contact between the PUR hot melt adhesive and the water vapor/air can be avoided, thereby the unnecessary reaction crosslinking solidification can be avoided, meanwhile, the PUR hot melt adhesive can be prevented from being oxidized possibly in a molten and heated state, the product is more durable, in addition, detection can be carried out when nitrogen overflows, waste caused by too much overflow of nitrogen is avoided, and the nitrogen cost is saved;
2. according to the invention, the mixing mechanism is adopted to start the driving motor to drive the second belt pulley to rotate, the driving rod drives the inclined reamers to rotate the zigzag reamers, so that the solid PUR hot melt adhesive can be subjected to conical crushing, the heating surface is heated more uniformly, the heating area is wider, the circulating flow of the lower part of liquid in the mixing box from bottom to top can be realized after reheating is finished, the flowing, stirring and mixing operation is formed, the conical flowing operation is realized, and thus the mixing efficiency and the mixing effect of the PUR hot melt adhesive and the flame retardant liquid can be effectively improved;
3. according to the invention, the pulling cylinder is started to drive the pulling rod to pull back, the hinge block drives the adjusting support plate to rotate anticlockwise on the adjusting shaft rod, and the pulling cylinder is started to drive the pulling rod to recover or push so as to adjust the size of a gap between the collecting spray pipe and the coating roller wheel, so that the spraying positions can be adjusted by the plurality of arc-shaped spray heads, the single-sided velvet base cloth with different thicknesses can be placed, meanwhile, the effect of adjusting extrusion force on the single-sided velvet base cloth is achieved, the contact surface straightening effect of the roller is better, and the spraying is more uniform.
To sum up, through the mutual influence of above-mentioned a plurality of effects, the adhesion effect of mixed liquid is increased substantially, in mixing stage or glueing stage, can avoid PUR hot melt adhesive and steam/air reaction and the cross-linking solidification, simultaneously, also can avoid the oxidation that PUR hot melt adhesive probably takes place under the molten condition, and is more durable, in addition, can detect when nitrogen gas overflows, it causes the waste to avoid nitrogen gas excessive overflow, realize that lower part liquid from the bottom up circulation in the mixing box flows, form the toper stirring mixing operation that flows, the mixing effect is better, be applicable to the placing of the single face fine hair backer of different thickness, also play the effect of adjusting the extrusion force to the single face fine hair backer, it is better to make roller attach contact surface straight effect, the spraying is more even, to sum up the life of extension sofa fabric, adhesion homogeneity is higher simultaneously, and is more durable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the cross-section of the coating roller of the present invention.
FIG. 3 is a schematic view of the structure of the junction between the mixing box and the intake pipe.
FIG. 4 is a schematic view of the connection between the bevel reamer and the zigzag reamer of the present invention.
Fig. 5 is a schematic structural view of a joint of the hinge block and the pulling rod of the present invention.
Fig. 6 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.
The reference signs are: 1. a mixing box; 2. an air inlet pipe; 3. a first electrically controlled valve; 4. a first connecting pipe; 5. a nitrogen compression tank; 6. a suction tube; 7. a nitrogen detection probe; 8. a nitrogen detector; 9. vacuumizing device; 10. extracting a pipe; 11. a resistance heating rod; 12. a cover plate; 13. a second electrically controlled valve; 14. a return pipe; 15. a lower nozzle; 16. a lower nozzle; 17. a second connecting pipe; 18. an output pipe; 19. a third electrically controlled valve; 20. a suction pump; 21. a backflow suction pipe; 22. an annular header; 23. a bottom suction head; 24. a drive rod; 25. tilting the reamer; 26. a zigzag reamer; 27. a first pulley; 28. a second pulley; 29. a drive belt; 30. a drive motor; 31. a collection spray pipe; 32. an arc-shaped spray head; 33. adjusting the support plate; 34. adjusting the shaft lever; 35. a hinged block; 36. pulling a rod; 37. pulling the cylinder; 38. coating roller; 39. a drive box.
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.
An environment-friendly flame-retardant sofa fabric and a preparation method thereof comprise the following steps;
mixing the PUR hot melt adhesive and the fire retardant liquid by using a hot melt adhesive compounding machine, and discharging internal air water vapor by injecting nitrogen during mixing to ensure that the nitrogen is injected to form isolated air, thereby forming a pollution-free mixing environment;
secondly, covering the single-sided velvet base fabric on the bottommost layer, coating the mixed liquid on the single-sided velvet base fabric through a hot melt adhesive compounding machine, then attaching the sofa shell fabric to the single-sided velvet base fabric, rolling, compacting, placing for 8-24 hours for moisture curing of PUR hot melt adhesive, and bonding the sofa shell fabric and the single-sided velvet base fabric through the mixed liquid of the PUR hot melt adhesive and the fire retardant liquid to obtain a semi-finished product of the environment-friendly flame retardant sofa shell fabric;
and step three, removing burrs of the semi-finished product of the environment-friendly flame-retardant sofa fabric by using a cutting machine according to the standard size, checking the burrs by using personnel, determining whether the burrs are uniform, cutting the size according to the packaging requirement after the burrs are uniform to be checked, and packaging the cut size into boxes to obtain the environment-friendly flame-retardant sofa fabric product.
The preparation device of the environment-friendly flame-retardant sofa fabric shown in the attached figures 1-6 comprises a mixing box 1, wherein one side of the mixing box 1 is provided with an air inlet pipe 2, and one end of the air inlet pipe 2 is provided with a protection mechanism;
protection mechanism is including setting up the first electric control valve 3 in 2 one ends of intake pipe, first connecting pipe 4 is installed to 3 one ends of first electric control valve, 4 bottom of first connecting pipe are connected with nitrogen gas compression jar 5, 1 top threaded connection of mixing box has apron 12, 12 top embeddings of apron are installed and are inhaled pipe 6, 6 one side embeddings of inhaling pipe are installed nitrogen gas test probe 7, nitrogen gas detector 8 is installed to 7 one end of nitrogen gas test probe, the vacuumizer 9 is installed on 6 tops of inhaling pipe, the 9 output of vacuumizer is connected with extraction tube 10.
As shown in fig. 3 and fig. 6, a plurality of resistance heating rods 11 are embedded in the top end of the mixing box 1 and located outside the cover plate 12, and the resistance heating rods 11 are fixedly connected with the cover plate 12, so that the resistance heating rods 11 can uniformly heat the inside of the mixing box 1.
As shown in fig. 3 and 4, a mixing mechanism is installed inside the mixing box 1, the mixing mechanism includes a return pipe 14 disposed inside the mixing box 1, one end of the return pipe 14 is connected with a lower nozzle 15, a plurality of lower nozzles 16 are disposed at equal intervals in a ring shape at the bottom end of the lower nozzle 15, the other end of the return pipe 14 is installed with a second electric control valve 13, one end of the second electric control valve 13 is connected with a second connecting pipe 17, one side of the second connecting pipe 17 is provided with an output pipe 18, one end of the output pipe 18 is installed with a third electric control valve 19, the bottom end of the second connecting pipe 17 is installed with a suction pump 20, the input end of the suction pump 20 is connected with a return suction pipe 21, the bottom end of the return pipe 21 is connected with a ring-shaped collecting pipe 22, the bottom end of the ring-shaped collecting pipe 22 is installed with a plurality of bottom suction heads 23, so as to close the third electric control valve 19, open the second electric control valve 13, and then start the suction pump 20 to make the plurality of bottom suction heads 23, the mixed liquid is sucked into the return pipe 14 and collected into the lower spray pipe 15 for downward spraying, so that the flowing circulation operation is formed, and the mixed flowing property is higher.
As shown in fig. 4, a plurality of inclined reamers 25 are installed inside the annular collecting pipe 22, one side of each inclined reamer 25 is connected with a folded reamer 26, the bottom end of each inclined reamer 25 is connected with a driving rod 24, a first belt pulley 27 is installed at the bottom end of each driving rod 24, a second belt pulley 28 is arranged on one side of each first belt pulley 27, a rear driving belt 29 is sleeved outside the second belt pulley 28, a driving motor 30 is installed at the bottom end of the second belt pulley 28, so that the driving motor 30 is started to drive the second belt pulley 28 to rotate, the driving rods 24 drive the inclined reamers 25 to rotate the folded reamers 26, and thus conical stirring operation can be formed, PUR hot melt adhesive solid fine smashing is realized, and heating is more uniform.
As shown in fig. 4, the inclined reamers 25 are arranged in an annular equidistant manner, the first belt pulley 27 is fixedly connected with the driving rod 24, the inclined reamers 25 are arranged so that the driving rod 24 is driven by the first belt pulley 27 to rotate, and the plurality of inclined reamers 25 can realize conical cutting and stirring operations.
As shown in fig. 1 and 5, the collection nozzle 31 is installed at one end of the third electric control valve 19, a plurality of arc-shaped spray heads 32 are arranged at the top end of the collection nozzle 31, an adjusting support plate 33 is arranged on one side of the collection nozzle 31, an adjusting shaft rod 34 is arranged inside the adjusting support plate 33, a hinged block 35 is connected to the bottom end of the adjusting support plate 33, a pulling rod 36 is connected to one side of the hinged block 35, a pulling cylinder 37 is installed at one end of the pulling rod 36, so that the pulling cylinder 37 is started to drive the pulling rod 36 to pull back, the hinged block 35 drives the adjusting support plate 33 to rotate counterclockwise on the adjusting shaft rod 34, and the adjustment operation of the gap between the collection nozzle 31 and the coating roller 38 can be realized.
As shown in fig. 5, the adjusting support plate 33 is movably connected to the adjusting shaft 34, and the hinge block 35 is movably connected to the pulling rod 36, so that the adjusting support plate 33 can rotate on the adjusting shaft 34, and the pulling rod 36 drives the hinge block 35 to move.
As shown in figure 2, a plurality of coating rollers 38 are equidistantly arranged on one side of the arc-shaped nozzle 32, and a driving box 39 is arranged at one end of each coating roller 38, so that a motor inside the driving box 39 drives the coating rollers 38 to rotate, and the movement operation of the single-sided velvet base fabric is realized.
The working principle of the invention is as follows: when the single-sided velvet base fabric is installed, the single-sided velvet base fabric can be installed at a position between the coating rollers 38 and the adjusting support plate 33, then sequentially penetrates through the two adjacent coating rollers 38 and is wound in an S shape, the pulling cylinder 37 is started to drive the pulling rod 36 to pull back, the pulling rod 36 drives the hinging block 35 to move, the hinging block 35 drives the adjusting support plate 33 to rotate anticlockwise on the adjusting shaft rod 34, the adjusting support plate 33 drives the collecting spray pipe 31 to expand a gap between the collecting spray pipe and the coating rollers 38, therefore, the size of the gap between the collecting spray pipe 31 and the coating rollers 38 can be adjusted by starting the pulling cylinder 37 to drive the pulling rod 36 to recover or push, after the gap is adjusted, the motor in the driving box 39 is started to drive the coating rollers 38 to transmit, and the coating rollers 38 drive a plurality of single-sided velvet base fabrics to perform rolling movement operation;
when in nitrogen protection, the cover plate 12 can be opened to introduce the PUR hot melt adhesive solid and the fire retardant liquid into the mixing box 1, then the cover plate 12 is covered, the vacuum extractor 9 is started to enable the suction pipe 6 to suck out the air in the mixing box 1, the air is pumped out to the outside along the suction pipe 10, so that the vacuum state is formed in the mixing box 1, then the first electric control valve 3 is opened, the nitrogen in the nitrogen compression tank 5 is input into the first connecting pipe 4 and enters the first electric control valve 3 along the first connecting pipe 4, the air is input into the air inlet pipe 2 through the first electric control valve 3 and enters the mixing box 1 along the air inlet pipe 2, so that the interior of the mixing box 1 is filled, the nitrogen can be filled into the mixing box 1 and gathered above the PUR hot melt adhesive solid and the fire retardant liquid, and after the nitrogen is filled and overflows into the suction pipe 6, the nitrogen detection probe 7 is used for detection, when the detected value is displayed on the nitrogen detector 8, the vacuum extractor 9 can be closed, and the extraction pipe 10 is covered by the sealing cloth;
when the fire retardant is mixed, the resistance heating rods 11 are electrified to generate heat inside the mixing box 1, the PUR hot melt adhesive solid starts to melt, the driving motor 30 is started to drive the second belt pulley 28 to rotate, the driving belt 29 drives the first belt pulley 27 to rotate, the first belt pulley 27 drives the driving rod 24 to rotate, the driving rod 24 drives the inclined reamers 25 to drive, the inclined reamers 25 drive the folded reamers 26 to rotate, so that the conical crushing operation on the PUR hot melt adhesive solid is accelerated, the heating surface is heated more uniformly, and meanwhile, the folded reamers 26 drive the fire retardant liquid and the PUR hot melt adhesive to be mixed;
when the circulating flow is mixed, the third electric control valve 19 is closed, the second electric control valve 13 is opened, the suction pump machine 20 is restarted to enable the plurality of bottom suction heads 23 to generate suction force, the bottom suction heads 23 suck the mixed liquid into the annular collecting pipe 22, the mixed liquid is input into the return suction pipe 21 through the annular collecting pipe 22, enters the second connecting pipe 17 along the return suction pipe 21, is input into the second electric control valve 13 through the second connecting pipe 17, is input into the return pipe 14 along the second electric control valve 13, is collected into the lower spray pipe 15 through the return pipe 14, and is downwards sprayed into the mixing box 1 through the plurality of lower spray pipes 15, so that the circulating mixing action of the PUR hot melt adhesive and the flame retardant is accelerated, the circulating flow operation is formed, and the mixing effect is better;
when coating is carried out, the second electric control valve 13 is closed, the third electric control valve 19 is opened, the suction head 23 at the bottom of the suction pipe 10 of the suction pump machine 20 is started, the mixed liquid in the mixing box 1 is sucked into the annular collecting pipe 22, is input into the backflow suction pipe 21 from the annular collecting pipe 22, enters into the suction pump machine 20 along the backflow suction pipe 21, is input into the output pipe 18 from the suction pump machine 20, is injected into the third electric control valve 19 along the output pipe 18, finally enters into the convergence spray pipe 31 through the third electric control valve 19, and is output into the plurality of arc-shaped spray nozzles 32 through the convergence spray pipe 31, finally the mixed liquid is sprayed onto the single-faced velvet base fabric by the plurality of arc-shaped spray nozzles 32, and is uniformly adhered to the upper surface of the single-faced velvet base fabric by the rolling of the coating roller 38.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The preparation method of the environment-friendly flame-retardant sofa fabric is characterized by comprising the following steps;
mixing the PUR hot melt adhesive and the fire retardant liquid by using a hot melt adhesive compounding machine, and discharging internal air water vapor by injecting nitrogen during mixing to ensure that the nitrogen is injected to form isolated air, thereby forming a pollution-free mixing environment;
secondly, covering the single-sided velvet base fabric on the bottommost layer, coating the mixed liquid on the single-sided velvet base fabric through a hot melt adhesive compounding machine, then attaching the sofa shell fabric to the single-sided velvet base fabric, rolling, compacting, placing for 8-24 hours for moisture curing of PUR hot melt adhesive, and realizing bonding of the sofa shell fabric and the single-sided velvet base fabric through the mixed liquid of the PUR hot melt adhesive and the fire retardant liquid;
and step three, removing burrs of the semi-finished product of the environment-friendly flame-retardant sofa fabric by using a cutting machine according to the standard size, checking the burrs by using personnel, determining whether the burrs are uniform, cutting the size according to the packaging requirement after the burrs are uniform to be checked, and packaging the cut size into boxes to obtain the environment-friendly flame-retardant sofa fabric product.
2. The preparation device for realizing the preparation method of the environment-friendly flame-retardant sofa fabric according to claim 1 is characterized in that: the device comprises a mixing box (1), wherein an air inlet pipe (2) is arranged on one side of the mixing box (1), and a protection mechanism is arranged at one end of the air inlet pipe (2);
protection mechanism is including setting up first electric control valve (3) in intake pipe (2) one end, first connecting pipe (4) are installed to first electric control valve (3) one end, first connecting pipe (4) bottom is connected with nitrogen gas compression jar (5), mixing box (1) top threaded connection has apron (12), apron (12) top embedding is installed and is inhaled pipe (6), inhale pipe (6) one side embedding and install nitrogen gas test probe (7), nitrogen gas test probe (8) are installed to nitrogen gas test probe (7) one end, vacuator (9) are installed on inhaling pipe (6) top, vacuator (9) output is connected with extraction pipe (10).
3. The manufacturing apparatus according to claim 2, characterized in that: mixing box (1) top just is located apron (12) outside embedding and is provided with a plurality of resistance heating stick (11), fixed connection between resistance heating stick (11) and apron (12).
4. The manufacturing apparatus according to claim 2, characterized in that: mixing box (1) internally mounted has mixing mechanism, mixing mechanism is including setting up back flow (14) in mixing box (1) inside, back flow (14) one end is connected with down spray tube (15), spray tube (15) bottom is annular equidistance down and is provided with a plurality of shower nozzles (16) down, second electric control valve (13) is installed to the back flow (14) other end, second electric control valve (13) one end is connected with second connecting pipe (17), second connecting pipe (17) one side is provided with output tube (18), third electric control valve (19) are installed to output tube (18) one end, suction pump machine (20) are installed to second connecting pipe (17) bottom, suction pump machine (20) input is connected with backward flow straw (21), backward flow straw (21) bottom is connected with annular collection pipe (22), the bottom end of the annular collecting pipe (22) is provided with a plurality of bottom suction heads (23).
5. The manufacturing apparatus according to claim 4, wherein: annular collection pipe (22) internally mounted has a plurality of slope reamers (25), slope reamer (25) one side is connected with book shape reamer (26), slope reamer (25) bottom is connected with actuating lever (24), first belt pulley (27) are installed to actuating lever (24) bottom, first belt pulley (27) one side is provided with second belt pulley (28), second belt pulley (28) outside cup joints back drive belt (29), driving motor (30) are installed to second belt pulley (28) bottom.
6. The manufacturing apparatus according to claim 5, wherein: the inclined reamers (25) are arranged in an annular equidistant mode, and the first belt pulley (27) is fixedly connected with the driving rod (24).
7. The manufacturing apparatus according to claim 4, wherein: the utility model discloses a spray tube (31) is assembled to third electric control valve (19) one end, it is provided with a plurality of arc shower nozzles (32) to assemble spray tube (31) top, it is provided with regulation extension board (33) to assemble spray tube (31) one side, adjust extension board (33) inside and be provided with adjusting shaft pole (34), it is connected with articulated piece (35) to adjust extension board (33) bottom, articulated piece (35) one side is connected with pulling rod (36), pulling cylinder (37) are installed to pulling rod (36) one end.
8. The manufacturing apparatus according to claim 7, characterized in that: the adjusting support plate (33) is movably connected with the adjusting shaft rod (34), and the hinged block (35) is movably connected with the pulling rod (36).
9. The manufacturing apparatus according to claim 7, characterized in that: the coating running roller (38) that a plurality of equidistance set up are installed to arc shower nozzle (32) one side, driving case (39) are installed to coating running roller (38) one end.
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| CN202111347749.XA CN114134664B (en) | 2021-11-15 | 2021-11-15 | Environment-friendly flame-retardant sofa fabric and preparation method and device thereof |
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| CN202111347749.XA CN114134664B (en) | 2021-11-15 | 2021-11-15 | Environment-friendly flame-retardant sofa fabric and preparation method and device thereof |
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| CN114134664B CN114134664B (en) | 2024-02-13 |
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| CN114134664B (en) | 2024-02-13 |
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