CN211268632U - High-temperature-resistant and high-tensile-modulus forming belt for paperless hollow filter stick forming machine - Google Patents
High-temperature-resistant and high-tensile-modulus forming belt for paperless hollow filter stick forming machine Download PDFInfo
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- CN211268632U CN211268632U CN201921545892.8U CN201921545892U CN211268632U CN 211268632 U CN211268632 U CN 211268632U CN 201921545892 U CN201921545892 U CN 201921545892U CN 211268632 U CN211268632 U CN 211268632U
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Abstract
The utility model relates to a high temperature resistant and high tensile modulus forming belt for a paperless hollow filter stick forming machine, belonging to the technical field of tobacco processing equipment; the high-temperature-resistant and high-tensile modulus forming belt for the paperless hollow filter stick forming machine is made of a framework layer and a protective layer, the protective layer is provided with two layers, the framework layer is clamped between the two protective layers, the framework layer is of a textile structure with a certain thickness formed by interweaving and blending nylon yarns and aramid yarns, and the protective layer is of an overhead space formed by nylon yarns and is respectively attached to the upper surface and the lower surface of the framework layer; the utility model discloses a set up the protective layer, reduce the damage of external environment to aramid fiber casing ply, simultaneously, the crisscross blending of nylon and aramid fiber forms the textile structure of certain thickness for tensile modulus and the life of shaping area in high temperature operational environment are very increased.
Description
Technical Field
The utility model belongs to the technical field of novel tobacco processing equipment, concretely relates to high temperature resistant, high tensile modulus profiled strip for no paper cavity filter rod make-up machine.
Background
The forming principle is that tows are stretched, sprayed with glycerin, melted and formed by high-temperature steam and then rapidly cooled, the steam temperature can reach 150 +/-5 ℃ during production, the upper limit of the designed working environment temperature of the forming belt made of the original 100% nylon 66 fiber is only about 70 ℃, the conventional known hot forming belt can resist heat at about 100 ℃, but under the working conditions of radial stress and temperature close to 100 ℃, the molecular chain slides to cause the integral elongation or damage of the forming belt, so that the service life and the tensile strength of the forming belt are greatly reduced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem that exists among the background art, the utility model discloses a set up the protective layer, reduce the damage of external environment to aramid fiber casing ply, simultaneously, nylon and the crisscross blending of aramid fiber form the textile structure of certain thickness for tensile modulus and the life of shaping area in high temperature operational environment are very increased.
In order to overcome the problem that exists among the background art, for solving above-mentioned problem, the utility model discloses a following technical scheme realizes:
the high-temperature-resistant and high-tensile modulus forming belt for the paperless hollow filter stick forming machine is made of a framework layer and protective layers, the two protective layers are provided with the framework layer in a clamped mode, the framework layer is formed by interweaving and blending nylon yarns and aramid yarns to form a textile structure with a certain thickness, and the protective layers are formed by forming an overhead space through the nylon yarns and are attached to the upper surface and the lower surface of the framework layer respectively.
Preferably, the framework layer is formed by blending high-denier nylon yarns and low-denier aramid yarns.
Preferably, the protective layer is prepared to have a thickness of 0.4mm to 0.8 mm.
The utility model has the advantages that:
the utility model discloses a set up the protective layer, reduce the damage of external environment to aramid fiber casing ply, simultaneously, the crisscross blending of nylon and aramid fiber forms the textile structure of certain thickness for tensile modulus and the life of shaping area in high temperature operational environment are very increased.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the figures are: 1-protective layer, 2-framework layer, 3-nylon and 4-aramid fiber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1, the high temperature resistant and high tensile modulus forming belt for the paperless hollow filter stick forming machine is made of a framework layer and two protective layers, the framework layer is sandwiched between the two protective layers, the framework layer is formed by interweaving and blending nylon yarns and aramid yarns to form a textile structure with a certain thickness, and the protective layers are formed by forming an overhead space by the nylon yarns and are respectively attached to the upper surface and the lower surface of the framework layer.
Aramid fiber is aromatic polyamide fiber, has excellent mechanical property, is the highest strength of the currently used organic fibers, and has the strength of 193.6 cN/tex; the elongation at break is 4 percent, the initial modulus is high and is 6 times of nylon 66, and the dimensional stability is good; the nylon fiber has the advantages of small density of 1.43-1.44 g/cm3, 1/5-1/6 of steel, good thermal stability, high strength at a high temperature, high chemical stability, good alkali resistance, acid resistance and good organic solvent, bleaching agent and insect and mildew resistance, the shrinkage rate of the fiber is 0 at 150 ℃, the fiber can still keep high strength at a high temperature, the melting point is more than 500 ℃, the nylon fiber can be continuously used at a high temperature of 300 ℃.
Because the aramid fiber has the characteristics of high modulus, difficult extension under external load and good product rigidity, the outer layer fabric is not suitable for bending when deforming, and the aramid fiber fabric conveying belt is not suitable for adopting a multilayer structure. Meanwhile, the aramid fiber is sensitive to surface damage, so that when the aramid fiber fabric belt is prepared, an additional protective layer sensitive to surface damage and small in size needs to be considered, so that damage of the external environment to the aramid fiber framework layer is reduced, and the purpose of prolonging the service life of the aramid fiber conveying belt is achieved. The framework layer is formed by blending high-denier (TD) nylon yarns and low-denier aramid yarns, and the parallel high-denier nylon yarns form an overhead space, so that the aramid surfaces are protected from being damaged, and the service life is prolonged.
The framework layer is formed by blending high-denier nylon yarns and low-denier aramid yarns, the components of the framework layer are that 90% of 1000D ultra-low shrinkage nylon multifilament yarns and 10% of 1000D aramid fibers are adopted as warp yarns, and nylon 66 nylon monofilament with the thickness of 0.3mm is adopted as weft yarns.
The protective layer is woven by nylon yarns, and the components of the protective layer are 500D ultra-low shrinkage nylon multifilament yarns as warp yarns and 0.3mm nylon 66 nylon monofilament as weft yarns. The preparation thickness is 0.4mm-0.8mm of the total thickness.
According to the measurement and calculation, under the working condition of 8 hours and 100kg of tensile force, the elongation rate reaches 5.3%, the service life reaches 18 hours, the service life is increased by about 3 times compared with the service life of the original forming belt, and the average service life of 100 times is increased by more than 20 hours compared with the original modified nylon forming belt by the measurement and calculation when the forming belt is applied to a KDF-2 type paperless hollow forming machine. The original average life was 6.3 hours. The average lifetime was now 26.4 hours. But because of using aramid fiber, the cost is increased by 50% -70%, and considering the increase of the service life, the economic benefit is still considerable.
The utility model discloses a set up the protective layer, reduce the damage of external environment to aramid fiber casing ply, simultaneously, the crisscross blending of nylon and aramid fiber forms the textile structure of certain thickness for tensile modulus and the life of shaping area in high temperature operational environment are very increased.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (3)
1. A high temperature resistant, high tensile modulus profiled strip for a paperless hollow filter rod making machine is characterized in that: the high-temperature-resistant and high-tensile modulus forming belt for the paperless hollow filter stick forming machine is made of a framework layer and protective layers, the two protective layers are provided with the framework layer in a clamped mode, the framework layer is formed by interweaving and blending nylon yarns and aramid yarns to form a textile structure with a certain thickness, and the protective layers are formed by forming an overhead space through the nylon yarns and are attached to the upper surface and the lower surface of the framework layer respectively.
2. A high temperature resistant, high tensile modulus plug wrap tape for a paperless hollow filter rod making machine as defined in claim 1 wherein: the framework layer is formed by blending high-denier nylon yarns and low-denier aramid yarns.
3. A high temperature resistant, high tensile modulus plug wrap tape for a paperless hollow filter rod making machine as defined in claim 1 wherein: the preparation thickness of the protective layer is 0.4mm-0.8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545892.8U CN211268632U (en) | 2019-09-18 | 2019-09-18 | High-temperature-resistant and high-tensile-modulus forming belt for paperless hollow filter stick forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545892.8U CN211268632U (en) | 2019-09-18 | 2019-09-18 | High-temperature-resistant and high-tensile-modulus forming belt for paperless hollow filter stick forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211268632U true CN211268632U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921545892.8U Active CN211268632U (en) | 2019-09-18 | 2019-09-18 | High-temperature-resistant and high-tensile-modulus forming belt for paperless hollow filter stick forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211268632U (en) |
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2019
- 2019-09-18 CN CN201921545892.8U patent/CN211268632U/en active Active
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