CN220079549U - Steam heat curing device of waterborne PU synthetic leather - Google Patents
Steam heat curing device of waterborne PU synthetic leather Download PDFInfo
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- CN220079549U CN220079549U CN202321730174.4U CN202321730174U CN220079549U CN 220079549 U CN220079549 U CN 220079549U CN 202321730174 U CN202321730174 U CN 202321730174U CN 220079549 U CN220079549 U CN 220079549U
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- 239000002649 leather substitute Substances 0.000 title claims abstract description 81
- 238000013007 heat curing Methods 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 238000005485 electric heating Methods 0.000 claims description 20
- 238000001723 curing Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 239000011247 coating layer Substances 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 claims description 3
- 238000001029 thermal curing Methods 0.000 claims 5
- 239000004814 polyurethane Substances 0.000 description 20
- 229920001187 thermosetting polymer Polymers 0.000 description 8
- 238000001035 drying Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- Treatment Of Fiber Materials (AREA)
Abstract
The utility model discloses a steam heat curing device of water-based PU synthetic leather, which comprises a main steam machine body and a synthetic leather conveying mechanism, wherein the main steam machine body is provided with a heat curing channel, a feed inlet and a discharge outlet are respectively formed at two ends of the main steam machine body by the heat curing channel, the synthetic leather conveying mechanism is used for conveying the synthetic leather to be treated through the heat curing channel, a main steam pipeline and a sub steam pipeline are arranged in the main steam machine body, the main steam pipeline is communicated with the sub steam pipeline and is used for conveying steam to the sub steam pipeline, the sub steam pipeline is provided with a plurality of spouts for spouting steam, the sub steam pipeline is positioned above the heat curing channel, the main steam machine body is provided with a steam input pipe, the steam input pipe is used for being connected to steam generating equipment, the main steam pipeline is communicated with the steam input pipe, and the steam is spouted from the spouts to a coating surface of the synthetic leather to be treated passing through the heat curing channel.
Description
Technical Field
The utility model relates to the technical field of production of water-based PU synthetic leather, in particular to a steam heat curing device of water-based PU synthetic leather.
Background
In the traditional synthetic leather production process, organic solvent polyurethane is adopted as a basic raw material for producing leather product base layers and surface layers. These organic solvents, which account for more than 60% of the total polyurethane component, are hazardous substances and are a number of hazards to the human body. The aqueous PU (polyurethane) synthetic leather slurry does not contain toxic organic chemical solvents, steam volatilizes in the production process, is harmless to human bodies and the environment, reduces the treatment cost of environmental pollution, and in addition, almost no toxic residues remain in the finished synthetic leather produced by adopting the aqueous PU synthetic leather slurry, so that the high requirement of environmental protection of the synthetic leather can be met. In addition, the aqueous PU synthetic leather slurry has the advantages of good film forming, firm bonding, acid resistance, alkali resistance, cold resistance, water resistance, air permeability and flex resistance of a coating, and the finished product prepared by the aqueous PU synthetic leather slurry has the advantages of plump hand feeling, soft texture, flame retardance, no toxicity, no pollution and the like. In the production of the water-based PU synthetic leather, an oven is generally adopted for drying and shaping, namely, a hot air convection drying mode is adopted, the surface of a coating is firstly heated to form a film during drying, the middle moisture is volatilized by breaking the leather surface in the further heating process, the leather film formation is changed, and the phenomena of easy peeling and pinholes are very common, so that the performance and the hand feeling of the water-based PU synthetic leather are adversely affected.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model provides a steam heat curing device for water-based PU synthetic leather, which enables the synthetic leather to be cured under the action of hot steam through a heat curing channel, and can maintain moisture in a coating at the same time, so that the cost achieves better softness and elasticity; meanwhile, the curing efficiency can be accelerated through a specially designed steam output mode.
In order to achieve the above object, the present utility model adopts the following technical scheme:
the utility model provides a steam thermosetting device of waterborne PU synthetic leather for carry out the thermosetting process to the synthetic leather that treats after the coating, including main part steam fuselage and synthetic leather conveying mechanism, main part steam fuselage is equipped with the thermosetting passageway, and the thermosetting passageway forms feed inlet and discharge gate respectively at main part steam fuselage both ends, and synthetic leather conveying mechanism is used for carrying treat the synthetic leather passes through the thermosetting passageway, main part steam fuselage inside is equipped with main steam pipeline and sub-steam pipeline, main steam pipeline intercommunication sub-steam pipeline is used for carrying steam to sub-steam pipeline, and sub-steam pipeline is provided with a plurality of spouts that are used for spouting steam, and sub-steam pipeline is located the thermosetting passageway top, is equipped with the steam input pipe on the main part steam fuselage, and the steam input pipe is used for being connected to steam generating equipment, and main steam pipeline communicates to the steam input pipe, and steam spouts to the coating face of treating the synthetic leather through the thermosetting passageway by the spout.
Preferably, the sub steam pipelines are arranged above the heat curing channel in a net-shaped distribution, spiral distribution, wave-shaped distribution, fold line distribution or even arrangement mode, so that steam sprayed by the nozzles uniformly covers the surface of the synthetic leather to be treated passing through the heat curing channel.
Preferably, the sub-steam pipeline comprises a plurality of calandria, the calandria is distributed along the conveying direction of the synthetic leather conveying mechanism at equal intervals side by side, a plurality of spouts are arranged at the bottom of the calandria, the spouts are distributed along the length direction of the calandria at equal intervals, and the main steam pipeline is connected with the middle parts of all calandrias simultaneously.
Preferably, a pipeline arrangement chamber is arranged in the main steam body, the sub steam pipeline is positioned in the pipeline arrangement chamber, the pipeline arrangement chamber is filled with a heat insulation coating layer, and the sub steam pipeline is wrapped by the heat insulation coating layer.
Preferably, the main body steam body is further provided with a discharging treatment module, the discharging treatment module is located at the discharging port end of the main body steam body, and the discharging treatment module comprises a water removal mechanism for removing moisture on the surface of the solidified synthetic leather.
Preferably, the dewatering mechanism comprises a dewatering roller and a power supply device, the dewatering roller comprises an electric heating roller core and a roller sleeve, the roller sleeve is made of flexible water absorbing materials, the roller sleeve is sleeved on the electric heating roller core, an electric heating wire is arranged in the electric heating roller core, the power supply device is connected with the electric heating wire to electrify and heat the electric heating wire, the dewatering roller is rotatably arranged in a main steam machine body, the center of the dewatering roller is perpendicular to the conveying direction of the synthetic leather, and the roller sleeve stretches into the heat curing channel; when the synthetic leather passes through the dewatering roller, the roller sleeve contacts and presses the surface of the synthetic leather.
Preferably, the synthetic leather conveying mechanism comprises a driving belt assembly, the driving belt assembly comprises a plurality of narrow type conveying belts, the narrow type conveying belts are arranged in parallel, gaps are reserved between the adjacent narrow type conveying belts, and the driving belt assembly penetrates through the heat curing channel to drive the synthetic leather to be processed to penetrate through the heat curing channel.
Preferably, the device is also provided with a steam curing platform, the main steam body and the transmission belt assembly are arranged on the steam curing platform, the steam curing platform is provided with a water collecting tank below the heat curing channel, and liquid formed by cooling steam can flow into the water collecting tank through a gap between the narrow transmission belts.
Compared with the prior art, the steam heat curing device for the water-based PU synthetic leather adopting the technical scheme has the following beneficial effects:
the sub steam pipelines are densely and uniformly distributed above the heat curing channel, and after the synthetic leather to be treated enters the heat curing channel, the sub steam pipelines can uniformly spray the hot steam on the coating of the synthetic leather, so that a larger coverage can be achieved, and the curing efficiency is improved; and steam is used for heating the coating, moisture is kept in the coating, but PU can be cured and formed at the temperature of 90-100 ℃, and the aqueous PU synthetic leather subjected to steam heat curing treatment has better flexibility and hand feeling.
The surface of the synthetic leather subjected to steam heat curing treatment can store moisture formed by steam cooling, if excessive water is accumulated on the surface of the synthetic leather, the treatment efficiency and the effect of subsequent drying are affected, and if the surface contains moisture during rolling, the synthetic leather can be damaged, and the water accumulated on the surface of the synthetic leather can be adsorbed by a water removing roller at the tail end of a heat curing channel so as to improve the effect of subsequent drying treatment; the electrothermal roller core of the dewatering roller can be heated, and the moisture absorbed by the roller sleeve can be continuously discharged, so that the long-time water absorption effect of the roller sleeve is maintained.
The heat insulation coating layer filled in the pipeline arrangement chamber is used for wrapping the sub-steam pipeline, so that heat exchange between the sub-steam pipeline and the outside can be greatly reduced, the pipeline is maintained at a higher temperature, the heat curing efficiency is prevented from being influenced by steam cooling, and meanwhile, the situation that liquid drops fall on the surface of the synthetic leather coating is reduced.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a steam heat curing apparatus for aqueous PU synthetic leather according to the present utility model.
Fig. 2 is a schematic structural view of a belt assembly according to the present embodiment.
Fig. 3 is a schematic distribution diagram of the main steam line and the sub steam line in the present embodiment.
Reference numerals: 1. a main body steam body; 10. a thermoset channel; 11. a feed inlet; 12. a discharge port; 13. a piping arrangement chamber; 2. a synthetic leather conveying mechanism; 20. a drive belt assembly; 200. a narrow conveyor belt; 3. a steam curing platform; 30. a water collection tank; 4. a main steam line; 5. a sub-steam line; 50. a calandria; 51. a spout; 6. a steam input pipe; 7. a thermal insulation coating layer; 8. a water removal mechanism; 80. a water removal roller; 800. an electric heating roller core; 801. a roller sleeve; 9. synthetic leather.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The steam heat curing device of the water-based PU synthetic leather shown in fig. 1 to 3 is used for performing a heat curing process on the coated synthetic leather 9 to be treated, and comprises a main steam machine body 1, a synthetic leather conveying mechanism 2 and a steam curing platform 3. The main body steam machine body 1 and the synthetic leather conveying mechanism 2 are both arranged above the steam curing platform 3, the main body steam machine body 1 is provided with a heat curing channel 10, the heat curing channel 10 is positioned between the main body steam machine body 1 and the steam curing platform 3, and the heat curing channel 10 respectively forms a feed inlet 11 and a discharge outlet 12 at two ends of the main body steam machine body 1; the synthetic leather conveying mechanism 2 comprises a driving belt assembly 20, wherein the driving belt assembly 20 comprises a plurality of narrow type conveying belts 200, the narrow type conveying belts 200 are arranged in parallel, gaps are reserved between the adjacent narrow type conveying belts 200, and the driving belt assembly 20 passes through the heat curing channel 10 to drive the synthetic leather 9 to be processed to pass through the heat curing channel 10.
The main body steam machine body 1 is internally provided with a main steam pipeline 4 and a sub steam pipeline 5, wherein the sub steam pipeline 5 is arranged above the heat curing channel 10 in an arrangement mode, the sub steam pipeline 5 comprises nine calandria 50, the nine calandria 50 are distributed side by side at equal intervals along the conveying direction of the synthetic leather conveying mechanism 2, the bottom of the calandria 50 is provided with a plurality of spouts 51, the spouts 51 are distributed at equal intervals along the length direction of the calandria 50, and the main steam pipeline 4 is simultaneously connected with the middle parts of all calandrias 50; the main steam pipeline 4 is communicated with the sub steam pipeline 5 and is used for conveying steam to the sub steam pipeline 5, the sub steam pipeline 5 is provided with a plurality of spouts 51 used for spouting steam, the sub steam pipeline 5 is located above the heat curing channel 10, the main steam machine body 1 is provided with a steam input pipe 6, the steam input pipe 6 is used for being connected to steam generating equipment, the main steam pipeline 4 is communicated with the steam input pipe 6, steam is spouted to the coating surface of the to-be-treated synthetic leather 9 passing through the heat curing channel 10 through the spouts 51, and the steam spouted by the spouts 51 can uniformly cover the surface of the to-be-treated synthetic leather 9 passing through the heat curing channel 10.
The main body steam engine body 1 is internally provided with the pipeline arrangement chamber 13, the sub steam pipeline 5 is positioned in the pipeline arrangement chamber 13, the pipeline arrangement chamber 13 is filled with the heat insulation coating layer 7, the heat insulation coating layer 7 adopts heat insulation materials such as foaming polyurethane or ceramic fiber, the sub steam pipeline 5 and the main steam pipeline 4 positioned in the pipeline arrangement chamber 13 are wrapped by the heat insulation coating layer 7, the heat exchange between the sub steam pipeline 5 and the main steam pipeline 4 and the outside can be greatly reduced, the pipeline temperature is maintained, and the steam cooling is avoided.
The main body steam machine body 1 is further provided with a discharging treatment module, the discharging treatment module is positioned at the discharging port 12 end of the main body steam machine body 1, the discharging treatment module comprises a dewatering mechanism 8 for removing moisture on the surface of the solidified synthetic leather 9, the dewatering mechanism 8 comprises a dewatering roller 80 and a power supply device, the dewatering roller 80 comprises an electric heating roller core 800 and a roller sleeve 801, the roller sleeve 801 is made of flexible water-absorbing materials, the roller sleeve 801 is sleeved on the electric heating roller core 800, an electric heating wire is arranged in the electric heating roller core 800, the power supply device is connected with the electric heating wire to electrify and heat the electric heating wire, the dewatering roller 80 is rotatably arranged in the main body steam machine body 1, the axis of the dewatering roller 80 is perpendicular to the conveying direction of the synthetic leather 9, and the roller sleeve 801 stretches into the heat-curing channel 10; when the synthetic leather 9 passes through the dewatering roller 80, the roller sleeve 801 contacts and presses the surface of the synthetic leather 9 to suck the moisture on the surface of the synthetic leather 9, and the roller sleeve 801 sucked with the moisture is heated and dried by the electric heating roller core 800 to realize continuous dewatering.
The steam curing platform 3 is provided with a water collecting tank 30 below the heat curing channel 10, and liquid formed by cooling steam in the heat curing process can flow into the water collecting tank 30 through gaps between the narrow conveyor belts 200 for collection and reuse.
The foregoing is a preferred embodiment of the present utility model, and it will be apparent to those skilled in the art that variations and modifications can be made without departing from the principles of the utility model, and these should also be considered as being within the scope of the utility model.
Claims (8)
1. The steam heat curing device of the water-based PU synthetic leather is used for performing a heat curing process on the coated synthetic leather (9) to be treated, and is characterized in that: including main part steam fuselage (1) and synthetic leather conveying mechanism (2), main part steam fuselage (1) are equipped with thermocuring passageway (10), and thermocuring passageway (10) form feed inlet (11) and discharge gate (12) respectively at main part steam fuselage (1) both ends, and synthetic leather conveying mechanism (2) are used for carrying wait to handle synthetic leather (9) through thermocuring passageway (10), main part steam fuselage (1) inside is equipped with main steam pipeline (4) and sub-steam pipeline (5), main steam pipeline (4) intercommunication sub-steam pipeline (5) are used for carrying steam to sub-steam pipeline (5), and sub-steam pipeline (5) are provided with a plurality of spouts (51) that are used for blowout steam, and sub-steam pipeline (5) are located thermocuring passageway (10) top, are equipped with steam input tube (6) on main part steam fuselage (1), and steam input tube (6) are used for being connected to steam generating equipment, and main steam pipeline (4) communicate to steam input tube (6), and steam spouts to the coating surface of waiting to handle synthetic leather (9) through thermocuring passageway (10).
2. The steam heat curing device of an aqueous PU synthetic leather according to claim 1, wherein: the sub steam pipelines (5) are arranged above the heat curing channel (10) in a reticular distribution, spiral distribution, wave-shaped distribution, fold line distribution or even arrangement mode, so that steam sprayed out of the nozzles (51) evenly covers the surface of the synthetic leather (9) to be treated passing through the heat curing channel (10).
3. The steam heat curing device of the aqueous PU synthetic leather according to claim 2, wherein: the sub-steam pipeline (5) comprises a plurality of calandria (50), the calandria (50) are distributed side by side at equal intervals along the conveying direction of the synthetic leather conveying mechanism (2), a plurality of nozzles (51) are arranged at the bottom of the calandria (50), the nozzles (51) are distributed at equal intervals along the length direction of the calandria (50), and the main steam pipeline (4) is connected with the middle parts of all calandria (50) simultaneously.
4. The steam heat curing device of an aqueous PU synthetic leather according to claim 1, wherein: the main body steam engine body (1) is internally provided with a pipeline arrangement chamber (13), the sub steam pipeline (5) is positioned in the pipeline arrangement chamber (13), the pipeline arrangement chamber (13) is filled with a heat insulation coating layer (7), and the sub steam pipeline (5) is wrapped by the heat insulation coating layer (7).
5. The steam heat curing device of an aqueous PU synthetic leather according to claim 1, wherein: the main body steam machine body (1) is also provided with a discharging treatment module, the discharging treatment module is positioned at the discharging port (12) end of the main body steam machine body (1), and the discharging treatment module comprises a water removing mechanism (8) for removing the moisture on the surface of the solidified synthetic leather (9).
6. The steam heat curing device of an aqueous PU synthetic leather of claim 5, wherein: the dewatering mechanism (8) comprises a dewatering roller (80) and a power supply device, the dewatering roller (80) comprises an electric heating roller core (800) and a roller sleeve (801), the roller sleeve (801) is made of flexible water absorbing materials, the roller sleeve (801) is sleeved on the electric heating roller core (800), an electric heating wire is arranged in the electric heating roller core (800), the power supply device is connected with the electric heating wire to energize and heat the electric heating wire, the dewatering roller (80) is rotatably arranged in a main steam machine body (1), the axis of the dewatering roller (80) is perpendicular to the conveying direction of the synthetic leather (9), and the roller sleeve (801) stretches into the heat curing channel (10); when the synthetic leather (9) passes through the dewatering roller (80), the roller sleeve (801) contacts and presses the surface of the synthetic leather (9).
7. The steam heat curing device of an aqueous PU synthetic leather according to claim 1, wherein: the synthetic leather conveying mechanism (2) comprises a driving belt assembly (20), the driving belt assembly (20) comprises a plurality of narrow conveying belts (200), the narrow conveying belts (200) are arranged in parallel, gaps are reserved between the adjacent narrow conveying belts (200), and the driving belt assembly (20) penetrates through the heat curing channel (10) to drive the synthetic leather (9) to be processed to penetrate through the heat curing channel (10).
8. The steam heat curing device of an aqueous PU synthetic leather of claim 7, wherein: the heat curing device is characterized by further comprising a steam curing platform (3), wherein the main steam body (1) and the transmission belt assembly (20) are arranged on the steam curing platform (3), the steam curing platform (3) is provided with a water collecting tank (30) below the heat curing channel (10), and liquid formed by steam cooling can flow into the water collecting tank (30) through a gap between the narrow transmission belts (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321730174.4U CN220079549U (en) | 2023-07-03 | 2023-07-03 | Steam heat curing device of waterborne PU synthetic leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321730174.4U CN220079549U (en) | 2023-07-03 | 2023-07-03 | Steam heat curing device of waterborne PU synthetic leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220079549U true CN220079549U (en) | 2023-11-24 |
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ID=88818612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321730174.4U Active CN220079549U (en) | 2023-07-03 | 2023-07-03 | Steam heat curing device of waterborne PU synthetic leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220079549U (en) |
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2023
- 2023-07-03 CN CN202321730174.4U patent/CN220079549U/en active Active
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