CN217435056U - Production line for fiber-reinforced skin hot-melt bonding insulation board - Google Patents
Production line for fiber-reinforced skin hot-melt bonding insulation board Download PDFInfo
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- CN217435056U CN217435056U CN202221055721.9U CN202221055721U CN217435056U CN 217435056 U CN217435056 U CN 217435056U CN 202221055721 U CN202221055721 U CN 202221055721U CN 217435056 U CN217435056 U CN 217435056U
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Abstract
The utility model relates to a production line of fibre reinforcement covering hot melt bonding heated board comprises continuous type production facility, continuous type production facility is including unreeling system, auxiliary material conveying system, once heating cooling combined system and cutting system. The production line of the utility model can bond the fiber reinforced hot melt adhesive skin of the fiber reinforced skin hot melt adhesive insulation board and the insulation board through the hot melt adhesive film under a primary heating and cooling system, and the obtained insulation board integrates the advantages of high impact resistance, low weight, heat insulation and heat preservation of the insulation board and the like of the hot melt adhesive fiber reinforced board; in the preparation process, the full-continuous production can be realized through one-step molding of the unreeling system, the auxiliary material conveying system, the one-step heating and cooling compound system and the cutting system, the cost is greatly reduced, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of combined material, concretely relates to production line of fibre reinforcement covering hot melt bonding heated board.
Background
The requirements of industries such as cold chain transportation and related buildings on the heat insulation performance and the impact resistance of the heat insulation board are higher and higher, and in view of the fact that a heat insulation board with a fiber skin and foam bonding structure is available in the market, the heat insulation board has the performances of impact resistance, light weight, heat insulation and the like.
In recent years, with the rise of the hot-melt adhesive composite material industry, more and more fibers are combined with hot-melt adhesive resin to prepare new products, fiber-reinforced hot-melt adhesive products have high impact strength and better mechanical comprehensive performance, and simultaneously have the characteristics of light weight, environmental friendliness and recyclability.
In view of this, this patent is filed.
SUMMERY OF THE UTILITY MODEL
There is the defect such as production efficiency low to current glue bonding heated board, the utility model provides a production line of fibre reinforcement covering hot melt bonding heated board, its more environmental protection, and adopt the technology of continuous manufacturing, production efficiency doubles, and bonding material descends by a wide margin.
The utility model aims at providing a production line of fibre reinforcement covering hot melt bonding heated board.
According to the production line of the fiber-reinforced skin hot-melt bonding insulation board of the specific embodiment of the utility model, the production line of the fiber-reinforced skin hot-melt bonding insulation board consists of continuous production equipment, and the continuous production equipment comprises an unreeling system, a primary heating and cooling compound system and a cutting system which are connected in sequence; still include auxiliary material conveying system, auxiliary material conveying system and unreel the system and place parallelly, to the primary heating cooling combined system conveying auxiliary material.
Furthermore, the unreeling system is a plurality of groups of air-expanding unreeling shafts, and each air-expanding unreeling shaft is provided with a raw material placing inlet.
Furthermore, the unreeling system is provided with at least 4 groups of air-expanding unreeling shafts.
Furthermore, supplementary material conveying system is the supplementary material platform that has conveyer.
Furthermore, the primary heating and cooling composite system is provided with a heating unit, a rolling unit and a cooling and shaping unit which are connected in sequence.
The heating unit melts the hot melt adhesive through electric heating or oil heating, the multilayer materials are pressed into a whole through the pressing of the rolling unit, the hot melt adhesive materials are subjected to physical reaction and are cooled and formed through the cooling and shaping unit, the skin is compounded on the surface of the foam, and the cooling and shaping unit is connected with an external refrigerator to cool the foam.
Specifically, the heating unit is provided with an electric heater or an oil heater for melting hot melt adhesive, the rolling unit is provided with a pressing machine for pressing multilayer materials, the cooling and shaping unit is provided with a cooling and shaping device, and the cooling and shaping unit is connected with an external refrigerator for cooling the cooling unit.
Furthermore, the cutting system is composed of a plurality of transverse cutting machines and a plurality of longitudinal cutting machines.
Furthermore, the unreeling system is also provided with a transverse fine adjustment mechanism for left and right deviation correction of the whole roll of raw materials and a tension control mechanism for controlling the unreeling tension of the raw materials.
Furthermore, at least one layer of high polymer interface layer unreeling frame is arranged in the unreeling system.
Furthermore, continuous type production facility still includes the traction system who is used for being convenient for the cutting with the panel tensioning, traction system places once heat between cooling combined system and the cutting system, traction system includes tractor group one and tractor group two, tractor group one and tractor group two all are provided with two sets of upper and lower rubber rollers.
The setting of the heating and cooling setting machine group gap and the middle rolling machine group gap of the primary heating and cooling system has the following characteristics:
1. the setting of the heating zone gap needs to be larger than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be adjusted by combining the production speed and the heating zone temperature, and the adjustment range is 1mm-15 mm.
2. The setting of the gap of the cooling zone needs to be smaller than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be set and adjusted in combination with the complete rebound deformation of the foam core material, and the adjustment range is 3-20 mm.
3. The setting of the gap of the middle roller press unit needs to be smaller than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be set and adjusted in combination with the complete rebound deformation of the foam core material, the adjustment range is 4-21 mm, the gap is slightly smaller than the cooling and shaping unit, and the deviation value between the gap and the cooling and shaping unit is 1-3 mm.
The production speed setting has the following characteristics:
1. the production speed v (m/min) is set in consideration of the melting of the hot melt adhesive film in the total heating time of the interlayer of the skin material and the heat insulation material. Total heating time t (min), total length L (m) of the melting and heating unit, and total heating time t (L/v (min)).
The production speed can be set according to the heat insulation performance of the material, the temperature of the heating unit and the melting property of the adhesive film, and the production speed can be measured according to the practical situation through simple experiments. In principle, the higher the temperature of the heating unit, the faster the heating unit is without damaging the skin and the foam core material.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) compared with the prior glue bonding technology, the production line of the utility model can bond the fiber reinforced hot melt bonding skin of the hot melt bonding insulation board with the insulation board through the hot melt adhesive film under a primary heating and cooling system, and the obtained insulation board integrates the advantages of high impact resistance, low weight, heat insulation and heat preservation of the insulation board and the like of the hot melt bonding fiber reinforced board;
(2) the manufacturing process is formed in one step through the unreeling system, the auxiliary material conveying system, the one-step heating and cooling compound system and the cutting system, full-continuous production can be realized, the cost is greatly reduced, and the production efficiency is improved. The production speed can reach 1.3 m/min.
(3) Compared with the existing insulation board adopting a positive pressure or negative pressure bonding mode, the production process is environment-friendly, the full thermoplastic production is pollution-free and VOC emission-free, and the bonding cost is reduced by at least 50%.
(4) Because partial fibre reinforcing thermoplasticity covering is very easily crimping when low thickness, in use need reduce the warpage problem in the use through increasing thickness, the utility model discloses a continuous mode can effectively avoid the operation that the warpage brought inconvenient, successfully reduces covering thickness to greatly reduce the comprehensive cost of material.
(5) The produced insulation board has extremely low volatile matters in subsequent use, the use process is environment-friendly, and the skin can be recycled.
(6) The produced insulation board has extremely high acid and alkali resistance and salt spray corrosion resistance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a continuous production line according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of the heat-insulating composite board strip in embodiment 1 of the present invention.
Reference numerals
1-a skin layer; 2-hot melt adhesive layer; 3-foam heat insulation layer; 21-26-unwinding shaft; 27-a supplementary material delivery system; 28-primary heating and cooling composite system; 29-traction unit I; 30-a traction unit II; 31-longitudinal cutting system; 32-transverse cutting system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The transverse cutting machine, the longitudinal cutting machine, the transverse fine adjustment mechanism, the tension control mechanism, the interface layer unreeling frame and the cooling equipment in the following embodiments are all universal equipment, the pressing machine is self-made and consists of an upper layer of aluminum or steel square tube and a lower layer of aluminum or steel square tube which are densely distributed, and cooling water provided by a refrigerating unit is introduced into the square tube.
Example 1
As shown in fig. 1, the embodiment provides a production line of a fiber reinforced skin hot-melt bonding insulation board, which comprises a continuous production device, wherein the continuous production device comprises an unreeling system, an auxiliary material conveying system 27, a primary heating and cooling composite system 28 and cutting systems 31 and 32 which are sequentially connected through a conveying belt, the unreeling system is provided with 6 sets of air-expanding unreeling shafts 21 to 26, each air-expanding unreeling shaft is provided with a raw material placing inlet for placing a skin material or a hot melt adhesive film, the auxiliary material conveying system 27 is an auxiliary material platform with a conveying belt, the primary heating and cooling composite system 28 is provided with a heating unit, a rolling unit and a cooling and setting unit which are sequentially connected, the heating unit is provided with an electric heater or an oil heater for melting a hot melt adhesive, the rolling unit is provided with a pressing machine for pressing a plurality of layers of materials, the cooling and shaping unit is provided with a cooling and shaping unit, and the cooling and shaping unit is connected with an external refrigerator to cool the cooling and shaping unit so as to form the heat-preservation plate belt.
The heating unit melts hot melt adhesive through an electric heating or oil heater, the multi-layer materials are pressed into a whole through the pressing of the rolling unit, the hot melt adhesive materials are subjected to physical reaction and are cooled and formed through the cooling and shaping unit, the skin is compounded on the surface of the foam, and the cooling and shaping unit is connected with an external refrigerator to cool the foam.
The setting of the heating zone gap needs to be larger than the sum of the thicknesses of all raw materials before entering the machine, the specific gap needs to be adjusted by combining the production speed and the heating zone temperature, and the adjusting range is 1mm-15 mm.
The setting of the gap of the cooling zone needs to be smaller than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be set and adjusted in combination with the complete rebound deformation of the foam core material, and the adjustment range is 3-20 mm.
The setting of the gap of the middle roller press unit needs to be smaller than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be set and adjusted in combination with the complete rebound deformation of the foam core material, the adjustment range is 4-21 mm, the gap is slightly smaller than the cooling and shaping unit, and the deviation value between the gap and the cooling and shaping unit is 1-3 mm.
Specifically, the cutting system is composed of two transverse cutting machines 32 and two longitudinal cutting machines 31, and the prepared heat preservation plate belt is cut into the required rectangular or square plate.
More specifically, the unreeling system 21-26 is further configured with a lateral fine-tuning mechanism for correcting left and right deviation of the raw material to be reeled, and a tension control mechanism for controlling the unreeling tension of the raw material, and the unreeling system 21-26 is further provided with a polymer interface layer unreeling frame. The interface layer can be the non-woven fabrics, sets up the interface layer and can bond more firm with foam heat preservation and skin layer, provides material bulk strength and shock resistance, and the skin bonding is moulded with the fibre reinforcement to interface layer one side, and the another side bonds with the foam.
When in use, the fiber reinforced hot melt adhesive skin material and the hot melt adhesive film (in the embodiment, the modified EVA ethylene-vinyl acetate copolymer adhesive film is selected for construction at 105 ℃, and the weight per unit area is 60 g/square meter) The fiber reinforced composite film is respectively placed on different air-inflation type unreeling shafts, the fiber reinforced skin and the adhesive film are unreeled together continuously, and are dragged and continuously put in after entering a host machine; foam core material (polyurethane foam with density of 40kg/m is selected in the embodiment) 3 97mm in thickness) is placed from an auxiliary material platform with a conveying belt, the fiber reinforced hot-melt adhesive skin material, the hot-melt adhesive film and the foam core material are continuously conveyed to a primary heating and cooling system through the front-end unreeling device and the auxiliary material conveying system 27 of the continuous production line, the hot-melt adhesive film is melted in a heating section through an electric heating or oil heater, the hot-melt adhesive film has large adhesive force after physical reaction, the multi-layer material is pressed into a whole through a rolling unit, the multi-layer material is cooled and formed through a cooling and forming device, the skin is compounded on the surface of the foam, and the cooling device is connected with an external refrigerator to cool the multi-layer material to form a heat preservation plate strip;
in the hot melt compounding, the set temperature of the heating unit is higher than the melting temperature of the hot melt adhesive and lower than the softening or carbonization temperature of the foam core material or the fiber reinforced hot melt adhesive skin material; the set temperature of the cooling and shaping device is lower than the softening temperature of the hot melt adhesive film and the temperature difference between the set temperature and the heating unit is more than or equal to 40 ℃; the bonding area of the foam core material and the fiber-reinforced hot-melt bonding skin material in the obtained composite material exceeds 70%.
And then, cutting the obtained heat-insulation plate strip into a fiber reinforced skin hot-melt adhesive heat-insulation plate in a fixed length mode.
The production speed can be set according to the heat insulation performance of the material, the temperature of the heating unit and the melting property of the adhesive film, and the production speed can be measured according to the practical situation through simple experiments. In principle, the higher the temperature of the heating unit, the faster the heating unit is without damaging the skin and the foam core material.
The production speed was calculated and set as follows:
1. the production speed v (m/min) is set in consideration of the melting of the hot melt adhesive film in the total heating time of the interlayer of the skin material and the heat insulation material. Total heating time t (min), total length L (m) of the melting and heating unit, and total heating time t (L/v (min)).
2. The production speed of this example was: 1.3 m/min.
Example 2
As shown in fig. 1, this embodiment provides a fiber reinforced skin hot-melt bonding insulation board production line, which is composed of a continuous production apparatus, where the continuous production apparatus includes an unwinding system, an auxiliary material conveying system 27, a primary heating and cooling composite system 28, and cutting systems 31 and 32, which are connected in sequence, the auxiliary material conveying system 27 and the unwinding system are placed in parallel, the unwinding system is provided with 6 sets of air-expanding unwinding shafts 21 to 26, each air-expanding unwinding shaft is provided with a raw material placing inlet, from which a fiber reinforced hot-melt bonding skin material is placed, 4 sets of polymer interface layer unwinding frame bodies are altogether used for placing interface layers, the unwinding shafts and the unwinding frames are connected and fixed through an interlocking structure, and the unwinding shafts are used for placing skins;
more specifically, the unreeling systems 21-26 are further configured with a lateral fine-tuning mechanism for correcting the left and right deviation of the raw material roll, and a tension control mechanism for controlling the unreeling tension of the raw material.
The auxiliary material conveying system 27 is an auxiliary material platform with a conveying belt, foam heat-insulating materials are placed at the position, the primary heating and cooling compound system 28 is a belt or steel belt compound machine which is provided with an upper conveying belt or a lower conveying belt or a steel belt which independently run, a heating unit, a rolling unit and a cooling and shaping unit, the heating unit is provided with an electric heater or an oil heater for melting hot melt adhesive, the rolling unit is provided with a pressing machine for pressing multilayer materials, the cooling and shaping unit is provided with a cooling and shaping unit which is connected with an external refrigerator for cooling, the belt is polytetrafluoroethylene-infiltrated fine woven glass fiber cloth, the steel belt is a whole steel conveying belt, one surface of the belt or the steel belt is in contact with a product, the other surface of the belt or the steel belt is in contact with a heating device or a cooling device, and heat conduction or cooling of the belt or the steel belt is carried out, transferring the heat to a product, pressing, cooling and shaping by cooling conduction to form the heat-insulating plate strip.
The heating unit melts hot melt adhesive through an electric heating or oil heater, the multi-layer materials are pressed into a whole through the pressing of the rolling unit, the hot melt adhesive materials are subjected to physical reaction and are cooled and formed through the cooling and shaping unit, the skin is compounded on the surface of the foam, and the cooling and shaping unit is connected with an external refrigerator to cool the foam.
The setting of the heating zone gap needs to be larger than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be adjusted by combining the production speed and the heating zone temperature, and the adjustment range is 1mm-15 mm.
The setting of the gap of the cooling zone needs to be smaller than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be set and adjusted in combination with the complete rebound deformation of the foam core material, and the adjustment range is 3-20 mm.
The setting of the gap of the middle roller press unit needs to be smaller than the sum of the thicknesses of the raw materials before entering the machine, the specific gap needs to be set and adjusted in combination with the complete rebound deformation of the foam core material, the adjustment range is 4-21 mm, the gap is slightly smaller than the cooling and shaping unit, and the deviation value between the gap and the cooling and shaping unit is 1-3 mm.
The plate is compounded into a heat preservation plate strip through a primary heating and cooling compound system 28 and then enters a first traction unit 29 and a second traction unit 30, the first traction unit 29 and the second traction unit 30 are both provided with an upper rubber roller and a lower rubber roller, the upper rubber rollers are pushed and pressed by a cylinder, the lower rubber rollers are provided with active power, a speed difference is arranged between the traction machine and a host, and the traction machine drags the plate in the host so as to tension the plate and facilitate cutting.
The cutting system is composed of a plurality of transverse cutting machines 32 and a plurality of longitudinal cutting machines 31, the prepared heat preservation plate belt firstly enters the longitudinal cutting system 27, a plurality of groups of longitudinal cutting saws are arranged on the lead screw guide rail for longitudinal cutting, and the longitudinal saw blade can be a vertical plate cutting right angle, a parallel cutting step or an angle cutting oblique angle. Then the plate enters a transverse cutting system 7, and the cutting machine moves along the movement direction of the plate on the guide rail during cutting, so that the plate with different required shapes is cut.
The process parameters of this example are set as follows:
the unwind spool 22 places the lower skin material, with the tension set at 80%,
the unwinding shaft 23 is provided with a hot melt adhesive film with a tension set to 2%,
the upper skin material is placed on the unreeling shaft 25, the tension is set to 80%,
the unwinding shaft 24 is provided with a hot melt adhesive film with a tension set to 2%,
the set temperature of the heating machine set is 130 ℃, and the gap is 106 mm;
the set temperature of the cooling setting machine group is 15 ℃, and the gap is 95 mm;
the gap of the middle roller press unit is 94 mm;
production speed of the present example: 1.3 m/min.
The fiber-reinforced skin hot-melt bonding insulation board obtained in example 1 (the thickness of the insulation board is 40mm, and the density of the insulation core material is 40 kg/m) 3 Foam polyurethane) and bonding glass steel heated board, bonding color steel plate heated board, bonding aluminum plate heated board carry out the comparison, and the result is as following table 1:
TABLE 1 comparison of several insulation boards
As can be seen from the table above, the weight of the fiber reinforced skin hot-melt adhesive insulation board skin obtained by the invention is 1.4g per square meter; the density of the heat-insulation board is lower than that of other heat-insulation boards, the density is 5.28kg per square meter, and the heat-insulation board has better acid and alkali corrosion resistance and better impact resistance.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The production line for the fiber-reinforced skin hot-melt bonding insulation board is characterized by comprising continuous production equipment, wherein the continuous production equipment comprises an unreeling system, a primary heating and cooling composite system and a cutting system which are sequentially connected; the continuous production equipment further comprises an auxiliary material conveying system, the auxiliary material conveying system and the unreeling system are placed in parallel, and the auxiliary material conveying system conveys auxiliary materials to the primary heating and cooling composite system.
2. The production line of the fiber reinforced skin hot-melt bonding insulation board according to claim 1, wherein the unwinding system comprises a plurality of sets of air-inflation unwinding shafts, and each air-inflation unwinding shaft is provided with a raw material placing inlet.
3. The production line of the fiber reinforced skin hot-melt adhesive insulation board according to claim 1, wherein the unreeling system is provided with not less than 4 sets of air-inflated unreeling shafts.
4. The production line of the fiber reinforced skin hot-melt adhesive insulation board according to claim 1, wherein the auxiliary material conveying system is an auxiliary material platform with a conveying belt.
5. The production line of the fiber reinforced skin hot-melt adhesive insulation board according to any one of claims 1 to 4, wherein the primary heating and cooling composite system comprises a heating unit, a rolling unit and a cooling and shaping unit which are connected in sequence.
6. The production line of the fiber reinforced skin hot-melt bonding insulation board according to claim 5, wherein the heating unit is provided with an electric heater or an oil heater for melting hot melt adhesive, the rolling unit is provided with a pressing machine for pressing multilayer materials, the cooling and shaping unit is provided with a cooling and shaping device, and the cooling and shaping unit is connected with an external refrigerator for cooling the cooling and shaping device.
7. The production line of the fiber reinforced skin hot-melt adhesive insulation board according to claim 1, wherein the cutting system is composed of a plurality of transverse cutting machines and a plurality of longitudinal cutting machines.
8. The production line of the fiber reinforced skin hot-melt adhesive insulation board according to claim 1, wherein the unwinding system is further provided with a lateral fine adjustment mechanism for correcting left and right deviation of the whole roll of raw material, and a tension control mechanism for controlling the unwinding tension of the raw material.
9. The production line of the fiber reinforced skin hot-melt adhesive insulation board according to claim 1, wherein at least one interface layer unwinding frame is arranged in the unwinding system.
10. The production line of the fiber reinforced skin hot-melt adhesive insulation board according to claim 1, wherein the continuous production equipment further comprises a traction system for tensioning the board and facilitating cutting, the traction system is placed between the primary heating and cooling composite system and the cutting system, the traction system comprises a first traction unit and a second traction unit, and the first traction unit and the second traction unit are both provided with an upper group of rubber rollers and a lower group of rubber rollers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221055721.9U CN217435056U (en) | 2022-04-29 | 2022-04-29 | Production line for fiber-reinforced skin hot-melt bonding insulation board |
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| CN202221055721.9U CN217435056U (en) | 2022-04-29 | 2022-04-29 | Production line for fiber-reinforced skin hot-melt bonding insulation board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114953481A (en) * | 2022-04-29 | 2022-08-30 | 城资泰诺(山东)新材料科技有限公司 | Production line of fiber-reinforced hot-melt bonding skin hot-melt bonding insulation board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953481A (en) * | 2022-04-29 | 2022-08-30 | 城资泰诺(山东)新材料科技有限公司 | Production line of fiber-reinforced hot-melt bonding skin hot-melt bonding insulation board |
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