CN109080102A - A kind of drawing process of Polywoven Bag - Google Patents
A kind of drawing process of Polywoven Bag Download PDFInfo
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- CN109080102A CN109080102A CN201811059540.1A CN201811059540A CN109080102A CN 109080102 A CN109080102 A CN 109080102A CN 201811059540 A CN201811059540 A CN 201811059540A CN 109080102 A CN109080102 A CN 109080102A
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Abstract
The invention discloses a kind of drawing process of Polywoven Bag, its concrete operation step are as follows: step 1: raw material preparation: by polypropylene powder, various additives and activated calcium carbonate with component proportion appropriate, sequentially it is poured into high-speed mixer, it is delivered in smelting furnace to after being sufficiently stirred at a high speed through feed screw by low speed, fusion plastification is carried out to the raw material after being sufficiently mixed；Step 2: film extrusion: the melting charge in step 1 is delivered in double-stage extruding unit through feed screw quantified, level pressure squeezes out, and through die head extrusion molding, form the film of molten.The present invention is by accurately controlling the temperature during drawing process, it is greatly improved the toughness of finished plastic silk, and plastic foil is cooled down using flowing cooling water, it may make that plastic foil is cooling more evenly, reduce the formation of plastic film fold, meanwhile using in the uniform coated with resins in plastic wire surface, the use feel of plastic wire can be greatly enhanced.
Description
Technical field
The present invention relates to Polywoven Bag field, in particular to a kind of drawing process of Polywoven Bag.
Background technique
It is well known that the critical process of production line of plastic woven bag is exactly wire drawing, the quality of drawing process is directly influenced
The quality of Polywoven Bag.Polywoven Bag caused by the plastic wire system produced using existing drawing process was being used
The case where fracture is easy to appear in journey, and the surface fold easy to form of plastic wire, cause the discomfort in feel.
Therefore, it is necessary to solve the above problems to invent a kind of drawing process of Polywoven Bag.
Summary of the invention
The purpose of the present invention is to provide a kind of drawing process of Polywoven Bag, the present invention passes through to drawing process process
In temperature accurately controlled, be greatly improved the toughness of finished plastic silk, and carry out to plastic foil using flowing cooling water
It is cooling, it may make plastic foil is cooling more evenly to reduce the formation of plastic film fold, meanwhile, using on plastic wire surface
Uniformly coating, can greatly enhance the use feel of plastic wire, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of drawing process of Polywoven Bag, specific
Operating procedure are as follows:
Step 1: raw material preparation: by polypropylene powder, various additives and activated calcium carbonate with appropriate group of distribution
Than, it is sequentially poured into high-speed mixer, is delivered in smelting furnace to after being sufficiently stirred at a high speed through feed screw by low speed,
Fusion plastification is carried out to the raw material after being sufficiently mixed；
Step 2: film extrusion: the melting charge in step 1 is delivered in double-stage extruding unit through feed screw and is determined
Amount, level pressure squeeze out, and through die head extrusion molding, form the film of molten；
Step 3: cooling: the molten film in step 2 being sent into cooling water or carries out cooling treatment in cold air chamber；
Step 4: plastic film after cooling cutting: is cut into the equal embryo silk of width with blade；
Step 5: heating stretches: the embryo silk in step 4 being placed in the higher baking oven of temperature by super drawing, until drawing
It extends to until forming flat filament；
Step 6: thermal finalization: the flat filament that drawn in step 5 is formed is placed on hot-pressing roller after carrying out thermal finalization, low
It is shunk in the case where hauling speed, and carries out low-temperature treatment on cold pressing roller；
Step 7: it eliminates electrostatic: the plastic wire after thermal finalization in step 6 is destaticed into stick by two continuously across multiple groups
The press roll component of composition carries out destaticing processing, to remove the electrostatic on plastic wire surface；
Step 8: molten resin uniformly film: is coated to in step 7 the plastic wire surface that destaticed that treated simultaneously
It cools down immediately, to form the braided wires for being directly used in braiding；
Step 9: winding molding: the braided wires after film in step 8 and cooling treatment are wound.
Preferably, the melting temperature of mixture is 200-250 DEG C in the step 1.
Preferably, the parallel spiral shells double in the same direction that it is 65mm that the double-stage extruding unit in the step 2, which is by a screw diameter,
The single screw extrusion machine that bar extruder and a screw diameter are 150mm is composed.
Preferably, the extrusion molding temperature of the step 2 is 180-200 DEG C.
Preferably, what the cooling water in the step 3 was selected is the cooling water of flow regime, and cooling temperature is controlled in 30-
60 DEG C, while cooling time is 30-45min.
Preferably, the temperature in the step 5 in baking oven is 150-180 DEG C.
Preferably, the temperature of the thermal finalization of hot-pressing roller is 100-150 DEG C in the step 6, and the cooling temperature of cold pressing roller
It is 30-50 DEG C, and the time of cooling treatment is 1.5h.
Preferably, what is selected in the step 9 is that disk differential type tension rolling mechanism winds braided wires.
Technical effect and advantage of the invention:
1, the present invention is greatly improved finished plastic silk by accurately being controlled the temperature during drawing process
Toughness, and plastic foil is cooled down using flowing cooling water, it may make that plastic foil is cooling more evenly, reduce plastic film
The formation of fold, meanwhile, using the feel for enhancing finished plastic silk in the uniform coated with resins mode in plastic wire surface, avoid to
User causes the discomfort in feel；
2, the present invention utilizes the parallel equidirectional two-screw extruder and a screw diameter for being 65mm by a screw diameter
The double-stage extruding unit that is composed for the single screw extrusion machine of 150mm squeezes out plastic foil, can preferably control
The quality of plastics film extruding forming.
Detailed description of the invention
Fig. 1 is the process flow chart that reels off raw silk from cocoons of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
The present invention provides a kind of drawing process of Polywoven Bag as shown in Figure 1, concrete operation steps are as follows:
Step 1: raw material preparation: by polypropylene powder, various additives and activated calcium carbonate with appropriate group of distribution
Than being sequentially poured into high-speed mixer, being delivered to heating temperature through feed screw after being sufficiently stirred by low speed to high speed
In the smelting furnace that degree is 200 DEG C, fusion plastification is carried out to the raw material after being sufficiently mixed；
Step 2: the melting charge in step 1 film extrusion: is delivered to extrusion molding temperature less than 180 through feed screw
DEG C double-stage extruding unit in quantified, level pressure squeezes out, and through die head extrusion molding, form the film of molten；
Step 3: cooling: the molten film in step 2 to be sent into the cooling water of flowing and carry out cooling treatment, and is cold
But the temperature of water be 30 DEG C, meanwhile, cooling time 30-45min；
Step 4: plastic film after cooling cutting: is cut into the equal embryo silk of width with blade；
Step 5: heating stretches: the embryo silk in step 4 is placed in the baking oven less than 150 DEG C by super drawing, until
It is stretched to until forming flat filament；
Step 6: thermal finalization: the flat filament that drawn in step 5 is formed is placed on hot-pressing roller after carrying out thermal finalization, low
It is shunk in the case where hauling speed, and carries out low-temperature treatment on cold pressing roller, wherein the temperature of the thermal finalization of hot-pressing roller is
100 DEG C, and the cooling temperature of cold pressing roller is less than 30 DEG C, and the time of cooling treatment is 1.5h；
Step 7: it eliminates electrostatic: the plastic wire after thermal finalization in step 6 is destaticed into stick by two continuously across multiple groups
The press roll component of composition carries out destaticing processing, to remove the electrostatic on plastic wire surface；
Step 8: molten resin uniformly film: is coated to in step 7 the plastic wire surface that destaticed that treated simultaneously
It cools down immediately, to form the braided wires for being directly used in braiding；
Step 9: winding molding: the braided wires after film in step 8 and cooling treatment are wound.
Further, in the above-mentioned technical solutions, the double-stage extruding unit in the step 2 is by a screw diameter
The single screw extrusion machine for being 150mm for the parallel equidirectional two-screw extruder of 65mm and a screw diameter is composed.
Further, in the above-mentioned technical solutions, what is selected in the step 9 is disk differential type tension rolling mechanism
Braided wires are wound.
Embodiment 2:
Unlike the first embodiment, a kind of drawing process of Polywoven Bag, concrete operation step are as follows:
Step 1: raw material preparation: by polypropylene powder, various additives and activated calcium carbonate with appropriate group of distribution
Than being sequentially poured into high-speed mixer, being delivered to heating temperature through feed screw after being sufficiently stirred by low speed to high speed
In the smelting furnace that degree is 230 DEG C, fusion plastification is carried out to the raw material after being sufficiently mixed；
Step 2: film extrusion: it is 180- that the melting charge in step 1, which is delivered to extrusion molding temperature through feed screw,
It is quantified in 200 DEG C of double-stage extruding unit, level pressure extrusion, and through die head extrusion molding, forms the film of molten；
Step 3: cooling: the molten film in step 2 to be sent into the cooling water of flowing and carry out cooling treatment, and is cold
But the temperature of water be 45 DEG C, meanwhile, cooling time 30-45min；
Step 4: plastic film after cooling cutting: is cut into the equal embryo silk of width with blade；
Step 5: heating stretches: the embryo silk in step 4 is placed in 150-180 DEG C of baking oven by super drawing, until
It is stretched to until forming flat filament；
Step 6: thermal finalization: the flat filament that drawn in step 5 is formed is placed on hot-pressing roller after carrying out thermal finalization, low
It is shunk in the case where hauling speed, and carries out low-temperature treatment on cold pressing roller, wherein the temperature of the thermal finalization of hot-pressing roller is
130 DEG C, and the cooling temperature of cold pressing roller is 30-50 DEG C, and the time of cooling treatment is 1.5h；
Step 7: it eliminates electrostatic: the plastic wire after thermal finalization in step 6 is destaticed into stick by two continuously across multiple groups
The press roll component of composition carries out destaticing processing, to remove the electrostatic on plastic wire surface；
Step 8: molten resin uniformly film: is coated to in step 7 the plastic wire surface that destaticed that treated simultaneously
It cools down immediately, to form the braided wires for being directly used in braiding；
Step 9: winding molding: the braided wires after film in step 8 and cooling treatment are wound.
Embodiment 3:
Unlike equal from Examples 1 and 2, a kind of drawing process of Polywoven Bag, concrete operation step are as follows:
Step 1: raw material preparation: by polypropylene powder, various additives and activated calcium carbonate with appropriate group of distribution
Than being sequentially poured into high-speed mixer, being delivered to heating temperature through feed screw after being sufficiently stirred by low speed to high speed
In the smelting furnace that degree is 250 DEG C, fusion plastification is carried out to the raw material after being sufficiently mixed；
Step 2: the melting charge in step 1 film extrusion: is delivered to extrusion molding temperature greater than 200 through feed screw
DEG C double-stage extruding unit in quantified, level pressure squeezes out, and through die head extrusion molding, form the film of molten；
Step 3: cooling: the molten film in step 2 to be sent into the cooling water of flowing and carry out cooling treatment, and is cold
But the temperature of water be 60 DEG C, meanwhile, cooling time 30-45min；
Step 4: plastic film after cooling cutting: is cut into the equal embryo silk of width with blade；
Step 5: heating stretches: the embryo silk in step 4 is placed in the baking oven greater than 180 DEG C by super drawing, until
It is stretched to until forming flat filament；
Step 6: thermal finalization: the flat filament that drawn in step 5 is formed is placed on hot-pressing roller after carrying out thermal finalization, low
It is shunk in the case where hauling speed, and carries out low-temperature treatment on cold pressing roller, wherein the temperature of the thermal finalization of hot-pressing roller is
150 DEG C, and the cooling temperature of cold pressing roller is greater than 50 DEG C, and the time of cooling treatment is 1.5h；
Step 7: it eliminates electrostatic: the plastic wire after thermal finalization in step 6 is destaticed into stick by two continuously across multiple groups
The press roll component of composition carries out destaticing processing, to remove the electrostatic on plastic wire surface；
Step 8: molten resin uniformly film: is coated to in step 7 the plastic wire surface that destaticed that treated simultaneously
It cools down immediately, to form the braided wires for being directly used in braiding；
Step 9: winding molding: the braided wires after film in step 8 and cooling treatment are carried out
Winding.Following table can be made by the comparison of embodiment 1-3:
Embodiment 4:
From embodiment 1-3 unlike, fused films to be cooled are placed in cooling temperature as 30- in the step 3
It is cooled down in 60 DEG C of air-cooling chamber.
Comparative analysis, when being cooled down by the way of air-cooled to molding membrane product, since film surface different location is heated
Unevenness, the case where causing finished plastic silk more crisp, fracture is easy to appear in use process, therefore it is preferred that with the mode of water cooling to film system
Product carry out cooling treatment.
Working principle of the present invention:
Referring to Figure of description 1, first by polypropylene powder, various additives and activated calcium carbonate with appropriate group of distribution
Than, it is sequentially poured into high-speed mixer, is delivered in smelting furnace to after being sufficiently stirred at a high speed through feed screw by low speed,
Fusion plastification is carried out to the raw material after being sufficiently mixed, and the melting charge after plasticizing is delivered to double-stage extruding unit through feed screw
It is middle quantified, level pressure squeezes out, and through die head extrusion molding, forms the film of molten, then molten film is sent into and is flowed
Cooling water in carry out cooling treatment, after cooling, plastic film after cooling is cut into the equal embryo of width with blade
Silk, then embryo silk is placed in the higher baking oven of temperature by super drawing, until being stretched to and to form flat filament, then by drawn
The flat filament of formation is placed on hot-pressing roller after progress thermal finalization, is shunk in the case where low hauling speed, and on cold pressing roller
Carry out low-temperature treatment, after the completion of thermal finalization, plastic wire continuously across multiple groups by two destatic press roll component that stick forms into
Row destatics processing, to remove the electrostatic on plastic wire surface, and molten resin is uniformly coated in step 7 and is destaticed place
Plastic wire surface after reason simultaneously cools down immediately, to form the braided wires for being directly used in braiding, finally utilizes disk differential type tension
Rolling-up mechanism winds braided wires.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of drawing process of Polywoven Bag, concrete operation step are as follows:
Step 1: it raw material preparation: by polypropylene powder, various additives and activated calcium carbonate with component proportion appropriate, presses
Sequencing is poured into high-speed mixer, is delivered in smelting furnace to after being sufficiently stirred at a high speed through feed screw by low speed, to filling
Mixed raw material is divided to carry out fusion plastification；
Step 2: film extrusion: the melting charge in step 1 is delivered in double-stage extruding unit through feed screw by quantitative, fixed
It extrudes out, and through die head extrusion molding, forms the film of molten；
Step 3: cooling: the molten film in step 2 being sent into cooling water or carries out cooling treatment in cold air chamber；
Step 4: plastic film after cooling cutting: is cut into the equal embryo silk of width with blade；
Step 5: heating stretches: the embryo silk in step 4 being placed in the higher baking oven of temperature by super drawing, until being stretched to
Until forming flat filament；
Step 6: thermal finalization: the flat filament that drawn in step 5 is formed is placed on hot-pressing roller after carrying out thermal finalization, in low traction
It is shunk in the case where speed, and carries out low-temperature treatment on cold pressing roller；
Step 7: it eliminates electrostatic: the plastic wire after thermal finalization in step 6 being destaticed into stick by two continuously across multiple groups and is formed
Press roll component carry out destaticing processing, to remove the electrostatic on plastic wire surface；
Step 8: molten resin uniformly film: is coated to in step 7 the plastic wire surface that destaticed that treated and immediately
It is cooling, to form the braided wires for being directly used in braiding；
Step 9: winding molding: the braided wires after film in step 8 and cooling treatment are wound.
2. a kind of drawing process of Polywoven Bag according to claim 1, it is characterised in that: mixed in the step 1
The melting temperature of material is 200-250 DEG C.
3. a kind of drawing process of Polywoven Bag according to claim 1, it is characterised in that: double in the step 2
The parallel equidirectional two-screw extruder and a screw diameter that it is 65mm by a screw diameter that rank, which squeezes out unit to be, are 150mm's
Single screw extrusion machine is composed.
4. a kind of drawing process of Polywoven Bag according to claim 1, it is characterised in that: the extrusion of the step 2
Forming temperature is 180-200 DEG C.
5. a kind of drawing process of Polywoven Bag according to claim 1, it is characterised in that: cold in the step 3
But wet concentration be flow regime cooling water, cooling temperature control at 30-60 DEG C, while cooling time be 30-45min.
6. a kind of drawing process of Polywoven Bag according to claim 1, it is characterised in that: baking oven in the step 5
Interior temperature is 150-180 DEG C.
7. a kind of drawing process of Polywoven Bag according to claim 1, it is characterised in that: hot pressing in the step 6
The temperature of the thermal finalization of roller is 100-150 DEG C, and the cooling temperature of cold pressing roller is 30-50 DEG C, and the time of cooling treatment is
1.5h。
8. a kind of drawing process of Polywoven Bag according to claim 1, it is characterised in that: selected in the step 9
Be that disk differential type tension rolling mechanism winds braided wires.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059540.1A CN109080102B (en) | 2018-09-12 | 2018-09-12 | Wire drawing process of plastic woven bag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811059540.1A CN109080102B (en) | 2018-09-12 | 2018-09-12 | Wire drawing process of plastic woven bag |
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| CN109080102A true CN109080102A (en) | 2018-12-25 |
| CN109080102B CN109080102B (en) | 2021-01-19 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850838A (en) * | 2019-04-03 | 2020-10-30 | 浙江天润无纺布有限公司 | Non-woven fabric production process |
| CN112223717A (en) * | 2020-09-28 | 2021-01-15 | 何梦丹 | Preparation process of polypropylene plastic braided wire |
| CN112519170A (en) * | 2020-11-30 | 2021-03-19 | 东营正宜包装股份有限公司 | Standard operation method for wire drawing process |
| CN112976529A (en) * | 2021-02-07 | 2021-06-18 | 烟台海湾塑料制品有限公司 | Flexible freight bag flat filament production line and production process thereof |
| CN113306105A (en) * | 2021-05-27 | 2021-08-27 | 温州品豪包装有限公司 | Wire drawing machine is used in processing of plastic woven sack |
| CN113352698A (en) * | 2021-03-30 | 2021-09-07 | 南通联荣集团有限公司 | Energy-saving environment-friendly wire drawing processing technology of flexible freight bag |
| TWI744108B (en) * | 2020-11-24 | 2021-10-21 | 勤倫有限公司 | Silk made by cutting film material and refined to improve physical properties and its production method |
| CN117779222A (en) * | 2024-02-26 | 2024-03-29 | 洛阳市大资塑业有限公司 | Plastic flat filament stretching device and stretching method |
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| CN106182793A (en) * | 2016-08-23 | 2016-12-07 | 天津市旭辉恒远塑料包装股份有限公司 | A kind of drawing process of Polywoven Bag |
| CN108164730A (en) * | 2017-12-25 | 2018-06-15 | 安徽省临泉县万隆塑料包装有限公司 | A kind of Polywoven Bag of high tensile load |
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| CN106182793A (en) * | 2016-08-23 | 2016-12-07 | 天津市旭辉恒远塑料包装股份有限公司 | A kind of drawing process of Polywoven Bag |
| CN108164730A (en) * | 2017-12-25 | 2018-06-15 | 安徽省临泉县万隆塑料包装有限公司 | A kind of Polywoven Bag of high tensile load |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850838A (en) * | 2019-04-03 | 2020-10-30 | 浙江天润无纺布有限公司 | Non-woven fabric production process |
| CN112223717A (en) * | 2020-09-28 | 2021-01-15 | 何梦丹 | Preparation process of polypropylene plastic braided wire |
| TWI744108B (en) * | 2020-11-24 | 2021-10-21 | 勤倫有限公司 | Silk made by cutting film material and refined to improve physical properties and its production method |
| CN112519170A (en) * | 2020-11-30 | 2021-03-19 | 东营正宜包装股份有限公司 | Standard operation method for wire drawing process |
| CN112976529A (en) * | 2021-02-07 | 2021-06-18 | 烟台海湾塑料制品有限公司 | Flexible freight bag flat filament production line and production process thereof |
| CN112976529B (en) * | 2021-02-07 | 2022-05-31 | 烟台海湾塑料制品有限公司 | Flexible freight bag flat filament production line and production process thereof |
| CN113352698A (en) * | 2021-03-30 | 2021-09-07 | 南通联荣集团有限公司 | Energy-saving environment-friendly wire drawing processing technology of flexible freight bag |
| CN113306105A (en) * | 2021-05-27 | 2021-08-27 | 温州品豪包装有限公司 | Wire drawing machine is used in processing of plastic woven sack |
| CN113306105B (en) * | 2021-05-27 | 2022-05-31 | 温州品豪包装有限公司 | Wire drawing machine is used in processing of plastic woven sack |
| CN117779222A (en) * | 2024-02-26 | 2024-03-29 | 洛阳市大资塑业有限公司 | Plastic flat filament stretching device and stretching method |
| CN117779222B (en) * | 2024-02-26 | 2024-05-03 | 洛阳市大资塑业有限公司 | Plastic flat filament stretching device and stretching method |
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| CN109080102B (en) | 2021-01-19 |
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