CN107118427B - A kind of PE preservative film and production technology with antibacterial functions - Google Patents

A kind of PE preservative film and production technology with antibacterial functions Download PDF

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Publication number
CN107118427B
CN107118427B CN201710459054.8A CN201710459054A CN107118427B CN 107118427 B CN107118427 B CN 107118427B CN 201710459054 A CN201710459054 A CN 201710459054A CN 107118427 B CN107118427 B CN 107118427B
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wind pressure
extruder head
extrusion
preservative film
dish type
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CN107118427A (en
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王康宁
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Shandong Guoning Packaging Co., Ltd
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Shandong Guoning Packaging Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0807Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815Copolymers of ethene with aliphatic 1-olefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00Producing flat articles, e.g. films or sheets
    • B29D7/01Films or sheets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04Homopolymers or copolymers of ethene
    • C08J2323/08Copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04Homopolymers or copolymers of ethene
    • C08J2423/06Polyethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/16Applications used for films
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/066LDPE (radical process)

Abstract

A kind of PE preservative film and production technology with antibacterial functions, belongs to packaging material for food field, especially PE preservative film and its technical field of producing.It is characterized in that the component for including by weight are as follows: low density polyethylene, 40-45 part;Linear low density polyethylene LLDPE, 50-56 part;Viscosify master batch, 2-2.5 parts;GMO, 0.5-1 parts of Monoolein;Silver-ion antibiotic additive, 0.5-1 part;Wherein, thickening master batch includes the linear low density polyethylene LLDPE of 60% polyisobutene PIB and 40% by weight.PE preservative film of the present invention can effectively extend the fresh-keeping and storage time of food, and good anti-bacterial effect, has a broad antifungal spectrum have the characteristics that long-acting, non-degradable, safe and environment-friendly, reliable;In addition, the advantages characteristic of technique and special equipment structure the design fitting molding product of this product, facilitates the quality and speed of production that promote product, reduces cost.

Description

A kind of PE preservative film and production technology with antibacterial functions
Technical field
The invention belongs to packaging material for food fields, especially PE preservative film and its technical field of producing, specifically relate to And a kind of PE preservative film and production technology with antibacterial functions.
Background technique
PE preservative film is the plastic packing product of the common a kind of fresh-keeping foodstuff of people, is all be unable to do without now with many families They.Food in microwave oven heating will use, and food is stored in refrigerator equally will use, and people tend to think to have used its food Safe protection can be obtained, therefore, preservative film has become indispensable one of the daily necessity of people.
But the PE preservative film of production and sales belongs to common PE food fresh keeping membrane on existing market, fresh keeping time is short, is easy Bacterium is bred, the health of people is adversely affected.
In consideration of it, applicant has been invented a kind of PE preservative film with antibacterial functions, can have been had by long-term experimental study Effect extends the fresh-keeping and storage time of food, and good anti-bacterial effect, has a broad antifungal spectrum have long-acting, non-degradable, safe and environment-friendly, reliable The features such as;In addition, the advantages characteristic of technique and special equipment structure the design fitting molding product of this product, helps to promote production The quality and speed of production of product, reduce cost.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of PE preservative film and production technology with antibacterial functions, energy Effectively extend food fresh-keeping and storage time, good anti-bacterial effect, has a broad antifungal spectrum, have it is long-acting, non-degradable, safe and environment-friendly, can By the features such as;Second technical problem that the present invention solves is that production is moulded in the technique of this product and the design fitting of special equipment structure The advantages characteristic of product facilitates the quality and speed of production that promote product, reduces cost.
In order to solve the above technical problems, the technical scheme is that provide a kind of PE preservative film with antibacterial functions, It is characterized by: the component for including by weight are as follows:
Wherein, thickening master batch includes the linear low density polyethylene of 60% polyisobutene PIB and 40% by weight LLDPE。
The production technology of a kind of PE preservative film with antibacterial functions of the present invention, it is characterised in that: including as follows Step:
(1) various raw materials are proportionally placed into mixing tank, and are carried out sufficiently by the agitating device in mixing tank Mixing;
(2) raw material mixed is formed into initial material, initial material enters the first settling vat and the second settling vat by preheating;
(3) while the initial material in the second settling vat being carried out secondary stir evenly by screw mixer, raw material is sent into thin Film extruder;
(4) after the three layer filtration device filtering that raw material passes through thin film extruding machine, then through the spiral boosting in thin film extruding machine Feed device is sent into extrusion die, and then, extrusion die carries out high temperature melting to initial material, and extrusion temperature is 150-170 degrees Celsius, And compressed air inflation is used while hot, while increasing its bright degree with tetanic cold front heavy rain, it is blown into cylindrical membrane semi-finished product;
(5) through overcooled cylindrical membrane semi-finished product after squeezing exhaust, by drawing wrapping machine for cylindrical membrane half Finished product is batched to film roller, at the same time, is cut two side strips of cylindrical membrane semi-finished product by edge severing machine;Cutting Width is less than 10mm;The PE preservative film finished product in film roller is obtained at this time.
Preferably, the production technology of the PE preservative film with antibacterial functions further includes (6) clout recycling and reusing step, institute (6) clout recycling and reusing step is stated to comprise the following steps:
6.1, the side strip under cutting is recycled to recovery capsule, and is crushed to the particle that partial size is less than 3mm;
6.2, the smashed particle is transferred back in mixing tank again by particle recovery tube, is mixed again simultaneously with raw material High temperature melting recycles.
Preferably, metal stirring wing is set in the mixing tank, and the metal stirring wing connects stirring motor, the stirring Motor is able to drive the rotation of metal stirring wing;In the lower section of mixing tank, setting circuit accommodates storehouse, and the circuit, which accommodates in storehouse, to be arranged Induction coil, affiliated induction coil connect high frequency induction power supply, and when the high frequency induction power supply is powered to induction coil, metal is stirred Fever can be incuded by mixing wing, and heating temperature is 80-100 degrees Celsius;Material is preheated while mixing.
Preferably, internal partition is set in first settling vat and the second settling vat, the internal partition is respectively by the first He Space is separated into " u "-shaped space in the bucket of second settling vat, and mixing tank connects " u "-shaped in the first settling vat by the first passage The one end in space, it is empty by the second passage to connect " u "-shaped in the second settling vat for the other end in " u "-shaped space in the first settling vat Between one end;The other end in " u "-shaped space connects thin film extruding machine by third passage in second settling vat;Described first, Second and third passage in be arranged screw mixer.
Preferably, the thin film extruding machine includes casing, and spiral boosting feed device, three layer filtration are arranged in the casing Device, extrusion device and compressed gas huffing device;One end of the spiral boosting feed device connects third passage, spiral The other end for increasing feed device connects extrusion device by three layer filtration device, and it is thin that the extrusion device can squeeze out tubular Film;Compressed gas huffing device is set at the middle part that extrusion device squeezes out, the compressed gas huffing device can blow out compression Gas is from inside by cylindrical membrane rising;The upper end connection traction wrapping machine of cylindrical membrane.
Preferably, the extrusion device includes dish type extruder head, jacks up formula electric heating device and extruder head quick change machinery Hand, the dish type extruder head are high-resistance metal conductive material;Annular nozzle is set on dish type extruder head, is squeezed by annular Mouth can squeeze out cylindrical membrane out;In the lower section of dish type extruder head, jack-up formula electric heating device is set;The extruder head quick change Manipulator is capable of the dish type extruder head of Quick-changing different model and is placed on jack-up formula electric heating device.
Preferably, the jack-up formula electric heating device includes grid screen block electric installation and accurate positioning liftout attachment;
The grid screen block electric installation includes grid rack, several array grids are arranged in inserting on the grid rack Positive and negative electrode contact is respectively set on array grid block in block;The positive and negative electrode contact is separately connected high-tension current Device and current switching controller;The high-tension current generator can generate high-tension current and be controlled by conducting wire by current switching Device is transferred to positive and negative electrode contact;The current switching controller is capable of the on-off of tapping mode high-tension current, forms high-tension pulse Rush electric current;
In the lower part of grid rack, setting is accurately positioned liftout attachment, and the accurate positioning liftout attachment includes liftout attachment Several locating rods are arranged on liftout attachment fixed frame in fixed frame, in the both ends of locating rod fixed lifting backing-out punch and fixed respectively Position device;The lifting backing-out punch includes " mouth " shape angled slide block and ejection power device, and the ejection power device is fixed on fixed On the bar of position and can angled slide block be ejected or be withdrawn upwards, it, can be by corresponding top array grid block top when angled slide block lifting It rises;The positioning device includes " u "-shaped push rod and positioning power device, and one end of the push rod connects positioning power device, pushes away The other end connection lifting backing-out punch of bar, positioning power device can transversely locating rod pushes or retracts lifting top by push rod Device out;
It preferably, further include master controller, the master controller can be according to the pre-set dimension of dish type extruder head, and it is fixed to control Spacing between the angled slide block at position bar both ends is equal to or less than the diameter of dish type extruder head;Angled slide block is driven by ejection power device It is raised up to upper limit, the array grid block above angled slide block is jacked up to be formed and lifts platform;It is described to lift on platform comprising at least Two positive and negative electrode contacts can be realized arteries and veins when dish type extruder head is placed by extruder head quick change manipulator to be lifted on platform The access for volt circuit of leaping high connects, so that dish type extruder head generates high fever under the action of high voltage pulse electric current, realizes to material High temperature melting, and realize synchronous extrusion;
Ejecting power device includes tubular sliding block, and the tubular slide block set fills on the securing lever, in the outside of tubular sliding block It is set with motorized roller, and in the external suit circle shape gear of motorized roller;Tooth form item is set in the inner hole of " mouth " shape angled slide block, The circle shape gear and tooth form item are intermeshed;Non-circular through-hole, the section shape of the locating rod are set on the tubular sliding block Shape is identical as the cross-sectional shape of non-circular through-hole of tubular sliding block;The push rod connects tubular sliding block;The motorized roller energy Enough band moving-coil shape gears rotate, while tooth form item and angled slide block being driven to rise or fall.
Preferably, the extrusion device further includes air pressure control device, and the air pressure control device includes tubular air compartment, institute The cylindrical membrane of dish type extruder head and its extrusion can be covered by stating tubular air compartment;The lower part of the tubular air compartment is around cylindrical membrane It is uniformly arranged within one week the cold wind blowpipe to up-draught, the cold wind blowpipe connects air-cooler;On the top of tubular air compartment, row is set Air duct installs contactless wind pressure controller on the exhaust tube;
Contactless wind pressure controller includes that wind pressure adjusts cylinder, and the wind pressure adjusts the hollow folder of setting in the peripheral wall of cylinder Layer, wind pressure adjustment barrel body is interior to be arranged wind pressure adjusting device, and wind pressure adjusting plates rotary power unit is arranged in hollow sandwich, described Wind pressure adjusting device includes wind pressure rotating plate and magnetic mounting rack, and the both ends of wind pressure rotating plate are hinged on the inner wall that wind pressure adjusts cylinder On, wind pressure rotating plate connects magnetic mounting rack, and internal magnet is arranged at the both ends of magnetic mounting rack;The wind pressure adjusting plates rotary power Device includes that wind pressure adjusts motor and outer runner, external magnet is installed on outer runner, external magnet and internal magnet attract each other;It is described Wind pressure adjusts motor can connect the outer runner rotation of drive by transmission system, and external magnet drives internal magnet and magnetic at the same time Mounting rack rotation changes the rotation angle of wind pressure rotating plate, and then controls the air pressure in tubular air compartment;
The contactless wind pressure controller further includes wind pressure rotating plate cleaning device, and the wind pressure rotating plate cleaning device includes Cleaning device mounting rod, the entrance that wind pressure adjusts cylinder is arranged in the cleaning device mounting rod, in cleaning device mounting rod Upper several vibrating springs of setting fix one or more cleaning band body on each vibrating spring.
Compared with prior art, the beneficial effects of the present invention are:
1, in the present invention, added silver ion inorganic antibacterial additive is a kind of highly effective and safe and heat-resisting inorganic material Material, can be widely used in the products such as weaving, plastics, rubber, coating.Its multi-size can make with most polymers match materials With since its excellent matching can make fertile material play excellent antimicrobial and antibacterial effect.Even if low concentration application Also it can reach preferable effect.Its physical and chemical performance is sufficiently stable, either still all has in use process in process There are outstanding resistance to dyeing and discoloration-resisting not to destroy product manufacturing using the fertile material transparency of this product without being substantially reduced Mold.More important is use this product to have higher safety.
By addition silver ion inorganic antibacterial additive, following advantage can be brought to product:
(1) low addition, the anti-microbial property of high-efficiency broad spectrum;
(2) good heat resistance and discoloration-resisting;
(4) reliable safety;
(5) antibacterial, mould proof effect can be kept for a long time.
In addition, thickening master batch product is the thickening master batch using LLDPE as carrier, containing 60%PIB, tackifier PIB is not With the mixture of molecular weight, optimal quasi-viscous effect can be obtained in this way.
2, the PE preservative film that the present invention is produced has the following characteristics that
(1) bacterial growth of fresh-keeping film surface, bacterium number can be inhibited to gradually decrease.With long-time bacteriostasis efficacy;
(2) efficient, wide spectrum anti-microbial property, antibacterial duration are good:
(3) nontoxic free from extraneous odour, to packaging food and environmental nonpollution;
(4) colour stability is good, non-discolouring in preservation and use process;
(5) there are good chemical stability, acid and alkali resistance and chemicals.
3, for the present invention by setting clout recycling and reusing step, the clout recycling melting that can generate trimming is sharp again With effectively save production cost improves the utilization rate of raw material.
4, the advantages characteristic of the technique of this product and special equipment structure design fitting molding product, helps to promote product Quality and speed of production, reduce cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the invention patent production equipment;
Fig. 2 is the structural schematic diagram of thin film extruding machine;
Fig. 3 is the structural schematic diagram (placing dish type extruder head) of jack-up formula electric heating device;
Fig. 4 is the structural schematic diagram of jack-up formula electric heating device;
Fig. 5 is the structural schematic diagram for being accurately positioned liftout attachment;
Fig. 6 is the structural schematic diagram of contactless wind pressure controller;
In figure:
1, cylindrical membrane semi-finished product;2, wrapping machine is drawn;
3, contactless air pressure control device;3.1, magnetic mounting rack;3.2, internal magnet;3.3, hollow sandwich;3.4, wind Press rotating plate;3.5, outer runner;3.6, external magnet;3.7, wind pressure adjusts motor;3.8, cleaning device mounting rod;3.9, bullet is vibrated Spring;3.10, cleaning band body;
4, tubular air compartment;5, third passage;6, internal partition;7, the second passage;8, stirring motor;9, mixing tank; 10, metal stirring wing;11, induction coil;12, the first passage;13, the first settling vat;14, internal partition;15, the second sedimentation Bucket;16, cold wind blowpipe;17, thin film extruding machine;18, dish type extruder head;19, grid rack;20, array grid block;21, spiral It is pressurized feed device;22, angled slide block;23, locating rod;24, shape gear is enclosed;25, positive and negative electrode contact;26, liftout attachment is fixed Frame;27, positioning power device;28, push rod.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of PE preservative film with antibacterial functions of the present invention, the component for including by weight Are as follows:
Wherein, thickening master batch includes the linear low density polyethylene of 60% polyisobutene PIB and 40% by weight LLDPE。
The material composition and proportion of specific embodiment are referring to following table:
Table one:
A kind of production technology of PE preservative film with antibacterial functions of the present invention, includes the following steps:
(1) various raw materials are proportionally placed into mixing tank, and are carried out sufficiently by the agitating device in mixing tank Mixing;
(2) raw material mixed is formed into initial material, initial material enters the first settling vat and the second settling vat by preheating;
(3) while the initial material in the second settling vat being carried out secondary stir evenly by screw mixer, raw material is sent into thin Film extruder;
(4) after the three layer filtration device filtering that raw material passes through thin film extruding machine, then through the spiral boosting in thin film extruding machine Feed device is sent into extrusion die, and then, extrusion die carries out high temperature melting to initial material, and extrusion temperature is 150-170 degrees Celsius, And compressed air inflation is used while hot, while increasing its bright degree with tetanic cold front heavy rain, it is blown into cylindrical membrane semi-finished product;
(5) through overcooled cylindrical membrane semi-finished product after squeezing exhaust, by drawing wrapping machine for cylindrical membrane half Finished product is batched to film roller, at the same time, is cut two side strips of cylindrical membrane semi-finished product by edge severing machine;Cutting Width is less than 10mm;The PE preservative film finished product in film roller is obtained at this time.
(6) clout recycling and reusing step comprises the following steps:
6.1, the side strip under cutting is recycled to recovery capsule, and is crushed to the particle that partial size is less than 3mm;
6.2, the smashed particle is transferred back in mixing tank again by particle recovery tube, is mixed again simultaneously with raw material High temperature melting recycles.
The production technology of PE preservative film of the present invention with antibacterial functions needs following equipment: mixing tank, first Settling vat and the second settling vat, thin film extruding machine and traction wrapping machine.
As shown in Figure 1, metal stirring wing is arranged in the mixing tank, the metal stirring wing connects stirring motor, described Stirring motor is able to drive the rotation of metal stirring wing;In the lower section of mixing tank, setting circuit accommodates storehouse, and the circuit accommodates in storehouse Induction coil is set, affiliated induction coil connects high frequency induction power supply, when the high frequency induction power supply is powered to induction coil, gold Fever can be incuded by belonging to stirring wing, and heating temperature is 80-100 degrees Celsius;Material is preheated while mixing.
Internal partition is set in first settling vat and the second settling vat, and the internal partition is respectively by the first and second sedimentations Space is separated into " u "-shaped space in the bucket of bucket, and mixing tank connects one of " u "-shaped space in the first settling vat by the first passage It holds, the other end in " u "-shaped space connects one of " u "-shaped space in the second settling vat by the second passage in the first settling vat End;The other end in " u "-shaped space connects thin film extruding machine by third passage in second settling vat;First, second He Screw mixer is set in third passage.
As shown in Fig. 2, the thin film extruding machine includes casing, spiral boosting feed device, three layers are set in the casing Filter device, extrusion device and compressed gas huffing device;One end of the spiral boosting feed device connects third passage, The other end that spiral increases feed device connects extrusion device by three layer filtration device, and the extrusion device can squeeze out tubular Film;Compressed gas huffing device is set at the middle part that extrusion device squeezes out, the compressed gas huffing device can blow out pressure Contracting gas is from inside by cylindrical membrane rising;The upper end connection traction wrapping machine of cylindrical membrane.
As shown in figure 4, the extrusion device includes that dish type extruder head, jack-up formula electric heating device and extruder head are changed planes fastly Tool hand, the dish type extruder head are high-resistance metal conductive material;Annular nozzle is set on dish type extruder head, passes through annular Nozzle can squeeze out cylindrical membrane;In the lower section of dish type extruder head, jack-up formula electric heating device is set;The extruder head is fast Manipulator is changed to be capable of the dish type extruder head of Quick-changing different model and be placed on jack-up formula electric heating device.
As seen in figures 3-6, the jack-up formula electric heating device includes grid screen block electric installation and accurate positioning ejection Device;
As shown in Figures 3 and 4, the grid screen block electric installation includes grid rack, and setting is inserted on the grid rack Several array grid blocks, are respectively set positive and negative electrode contact on array grid block;The positive and negative electrode contact connects respectively Connect high-tension current generator and current switching controller;The high-tension current generator can generate high-tension current and be led to by conducting wire Overcurrent on-off controller is transferred to positive and negative electrode contact;The current switching controller is capable of tapping mode high-tension current On-off forms high-voltage pulse current;
As shown in figure 5, setting is accurately positioned liftout attachment, the accurate positioning liftout attachment packet in the lower part of grid rack Liftout attachment fixed frame is included, several locating rods are set on liftout attachment fixed frame, in the fixed lifting respectively of the both ends of locating rod Backing-out punch and positioning device;The lifting backing-out punch includes " mouth " shape angled slide block and ejection power device, the ejection power dress It sets and fixes on the securing lever and can angled slide block be ejected or be withdrawn upwards, it, can be by corresponding top battle array when angled slide block lifting Column grid block jacks up;The positioning device includes " u "-shaped push rod and positioning power device, and one end connection positioning of the push rod is dynamic Power device, push rod the other end connection lifting backing-out punch, positioning power device can by push rod transversely locating rod push or Retract lifting backing-out punch;
Extrusion device further includes master controller, and the master controller can be controlled according to the pre-set dimension of dish type extruder head Spacing between the angled slide block at locating rod both ends is equal to or less than the diameter of dish type extruder head;Angled slide block is by ejection power device band It is dynamic to be raised up to upper limit, the array grid block above angled slide block is jacked up to be formed and lifts platform;It is described to lift on platform comprising extremely Few two positive and negative electrode contacts can be realized when dish type extruder head is placed by extruder head quick change manipulator to be lifted on platform The access of high voltage pulse circuit connects, so that dish type extruder head generates high fever under the action of high voltage pulse electric current, realizes to object The high temperature melting of material, and realize synchronous extrusion;
Ejecting power device includes tubular sliding block, and the tubular slide block set fills on the securing lever, in the outside of tubular sliding block It is set with motorized roller, and in the external suit circle shape gear of motorized roller;Tooth form item is set in the inner hole of " mouth " shape angled slide block, The circle shape gear and tooth form item are intermeshed;Non-circular through-hole, the section shape of the locating rod are set on the tubular sliding block Shape is identical as the cross-sectional shape of non-circular through-hole of tubular sliding block;The push rod connects tubular sliding block;The motorized roller energy Enough band moving-coil shape gears rotate, while tooth form item and angled slide block being driven to rise or fall.
As shown in Figure 1, the extrusion device further includes air pressure control device, the air pressure control device includes tubular wind Room, the tubular air compartment can cover the cylindrical membrane of dish type extruder head and its extrusion;The lower part of the tubular air compartment is around cylinder It is uniformly arranged within shape film one week the cold wind blowpipe to up-draught, the cold wind blowpipe connects air-cooler;On the top of tubular air compartment Exhaust tube is set, contactless wind pressure controller is installed on the exhaust tube;
As shown in fig. 6, contactless wind pressure controller includes that wind pressure adjusts cylinder, the wind pressure is adjusted in the peripheral wall of cylinder Hollow sandwich is set, wind pressure adjusting device is set in wind pressure adjustment barrel body, it is dynamic that wind pressure adjusting plates rotation is set in hollow sandwich Power device, the wind pressure adjusting device include wind pressure rotating plate and magnetic mounting rack, and the both ends of wind pressure rotating plate are hinged on wind pressure adjusting On the inner wall of cylinder, wind pressure rotating plate connects magnetic mounting rack, and internal magnet is arranged at the both ends of magnetic mounting rack;The wind pressure is adjusted Plate rotary power unit includes that wind pressure adjusts motor and outer runner, and external magnet, external magnet and internal magnet phase are installed on outer runner Mutually attract;The wind pressure adjusts motor can connect the outer runner rotation of drive by transmission system, and external magnet drives at the same time Internal magnet and the rotation of magnetic mounting rack, change the rotation angle of wind pressure rotating plate, and then control the air pressure in tubular air compartment;
The contactless wind pressure controller further includes wind pressure rotating plate cleaning device, and the wind pressure rotating plate cleaning device includes Cleaning device mounting rod, the entrance that wind pressure adjusts cylinder is arranged in the cleaning device mounting rod, in cleaning device mounting rod Upper several vibrating springs of setting fix one or more cleaning band body on each vibrating spring.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.Without departing from the technical solutions of the present invention, to the above embodiments according to the technical essence of the invention Any simple modification, equivalent variations and remodeling, still fall within the protection scope of technical solution of the present invention.

Claims (5)

1. a kind of production technology of the PE preservative film with antibacterial functions, it is characterised in that: the component for including by weight are as follows:
Wherein, thickening master batch includes the linear low density polyethylene LLDPE of 60% polyisobutene PIB and 40% by weight;
The production technology of PE preservative film with antibacterial functions, includes the following steps:
(1) various raw materials are proportionally placed into mixing tank, and are sufficiently mixed by the agitating device in mixing tank;
(2) raw material mixed is formed into initial material, initial material enters the first settling vat and the second settling vat by preheating;
(3) while the initial material in the second settling vat being carried out secondary stir evenly by screw mixer, raw material feeding film is squeezed Machine out;
(4) after the three layer filtration device filtering that raw material passes through thin film extruding machine, then through the spiral boosting feeding in thin film extruding machine Device is sent into extrusion die, and then, extrusion die carries out high temperature melting to initial material, and extrusion temperature is 150-170 degrees Celsius, and is taken advantage of Heat compressed air inflation, while increasing its bright degree with tetanic cold front heavy rain, it is blown into cylindrical membrane semi-finished product;
(5) through overcooled cylindrical membrane semi-finished product after squeezing exhaust, by drawing wrapping machine for cylindrical membrane semi-finished product It batches to film roller, at the same time, is cut two side strips of cylindrical membrane semi-finished product by edge severing machine;Cutting width Less than 10mm;The PE preservative film finished product in film roller is obtained at this time;
The thin film extruding machine includes casing, setting spiral boosting feed device, three layer filtration device, extrusion dress in the casing It sets and compressed gas huffing device;One end of the spiral boosting feed device connects third passage, and spiral increases feeding dress The other end set connects extrusion device by three layer filtration device, and the extrusion device can squeeze out cylindrical membrane;It is filled squeezing out The middle part setting compressed gas huffing device of extrusion is set, the compressed gas huffing device can blow out compressed gas will from inside Cylindrical membrane rising;The upper end connection traction wrapping machine of cylindrical membrane;
The extrusion device includes dish type extruder head, jacks up formula electric heating device and extruder head quick change manipulator, the dish type Extruder head is high-resistance metal conductive material;Annular nozzle is set on dish type extruder head, can be squeezed by annular nozzle Cylindrical membrane out;In the lower section of dish type extruder head, jack-up formula electric heating device is set;The extruder head quick change manipulator can The dish type extruder head of Quick-changing different model is simultaneously placed on jack-up formula electric heating device;
The jack-up formula electric heating device includes grid screen block electric installation and accurate positioning liftout attachment;
The grid screen block electric installation includes grid rack, several array grid blocks are arranged in inserting on the grid rack, Positive and negative electrode contact is respectively set on array grid block;The positive and negative electrode contact be separately connected high-tension current generator and Current switching controller;The high-tension current generator can generate high-tension current and be passed by conducting wire by current switching controller It is defeated by positive and negative electrode contact;The current switching controller is capable of the on-off of tapping mode high-tension current, forms high-voltage pulse electric Stream;
In the lower part of grid rack, setting is accurately positioned liftout attachment, and the accurate positioning liftout attachment includes that liftout attachment is fixed Several locating rods are arranged on liftout attachment fixed frame in frame, in the both ends of locating rod fixed lifting backing-out punch and positioning dress respectively It sets;The lifting backing-out punch includes " mouth " shape angled slide block and ejection power device, and the ejection power device is fixed on locating rod Above and can angled slide block be ejected or be withdrawn upwards, when angled slide block lifting, corresponding top array grid block can jacked up;Institute Stating positioning device includes " u "-shaped push rod and positioning power device, and one end of the push rod connects positioning power device, push rod it is another One end connection lifting backing-out punch, positioning power device can transversely locating rod pushes or retracts lifting backing-out punch by push rod;
It further include master controller, the master controller can control locating rod both ends according to the pre-set dimension of dish type extruder head Spacing between angled slide block is equal to or less than the diameter of dish type extruder head;Angled slide block is raised up to the upper limit by the drive of ejection power device Position, the array grid block above angled slide block is jacked up to be formed and lifts platform;Described lift contains at least two positive and negative electricity on platform Pole contact can be realized high voltage pulse circuit when dish type extruder head is placed by extruder head quick change manipulator to be lifted on platform Access connection realize the high temperature melting to material so that dish type extruder head generates high fever under the action of high voltage pulse electric current, And realize synchronous extrusion;
Ejecting power device includes tubular sliding block, and on the securing lever, external in tubular sliding block is set with the tubular slide block set dress Motorized roller, and in the external suit circle shape gear of motorized roller;Tooth form item is set in the inner hole of " mouth " shape angled slide block, it is described It encloses shape gear and tooth form item is intermeshed;Non-circular through-hole is set on the tubular sliding block, the cross sectional shape of the locating rod with The cross-sectional shape of the non-circular through-hole of tubular sliding block is identical;The push rod connects tubular sliding block;The motorized roller being capable of band The rotation of moving-coil shape gear, while tooth form item and angled slide block being driven to rise or fall.
2. a kind of production technology of PE preservative film with antibacterial functions described in accordance with the claim 1, it is characterised in that: also wrap (6) clout recycling and reusing step is included, (6) the clout recycling and reusing step comprises the following steps:
6.1, the side strip under cutting is recycled to recovery capsule, and is crushed to the particle that partial size is less than 3mm;
6.2, the smashed particle is transferred back in mixing tank again by particle recovery tube, mixes simultaneously high temperature again with raw material Fusing recycles.
3. a kind of production technology of the PE preservative film with antibacterial functions according to claim 2, it is characterised in that: described Metal stirring wing is set in mixing tank, and the metal stirring wing connects stirring motor, and the stirring motor is able to drive metal and stirs Mix wing rotation;In the lower section of mixing tank, setting circuit accommodates storehouse, and the circuit, which accommodates, is arranged induction coil, the affiliated line of induction in storehouse Circle connection high frequency induction power supply, when the high frequency induction power supply is powered to induction coil, metal stirring wing can incude fever, hair Hot temperature is 80-100 degrees Celsius;Material is preheated while mixing.
4. a kind of production technology of PE preservative film with antibacterial functions described in accordance with the claim 3, it is characterised in that: described Internal partition is set in the first settling vat and the second settling vat, and the internal partition is respectively by space in the bucket of the first and second settling vats It is separated into " u "-shaped space, mixing tank connects the one end in " u "-shaped space in the first settling vat, the first sedimentation by the first passage The other end in " u "-shaped space connects the one end in " u "-shaped space in the second settling vat by the second passage in bucket;Second settling vat The other end in interior " u "-shaped space connects thin film extruding machine by third passage;It is set in first, second, and third passage Set screw mixer.
5. a kind of production technology of the PE preservative film with antibacterial functions according to claim 4, it is characterised in that: described Extrusion device further includes air pressure control device, and the air pressure control device includes tubular air compartment, and the tubular air compartment can cover The cylindrical membrane of dish type extruder head and its extrusion;The lower part of the tubular air compartment was uniformly arranged around cylindrical membrane one week blows upwards The cold wind blowpipe of wind, the cold wind blowpipe connect air-cooler;Exhaust tube is set on the top of tubular air compartment, is pacified on the exhaust tube Fill contactless wind pressure controller;
Contactless wind pressure controller includes that wind pressure adjusts cylinder, and the wind pressure, which is adjusted, is arranged hollow sandwich in the peripheral wall of cylinder, Wind pressure adjusting device is set in wind pressure adjustment barrel body, wind pressure adjusting plates rotary power unit, the wind are set in hollow sandwich Pressure regulating device includes wind pressure rotating plate and magnetic mounting rack, and the both ends of wind pressure rotating plate are hinged on wind pressure and adjust on the inner wall of cylinder, Wind pressure rotating plate connects magnetic mounting rack, and internal magnet is arranged at the both ends of magnetic mounting rack;The wind pressure adjusting plates rotary power dress It sets and adjusts motor and outer runner including wind pressure, external magnet is installed on outer runner, external magnet and internal magnet attract each other;The wind Pressure adjusts motor can connect the outer runner rotation of drive by transmission system, and external magnet drives internal magnet and magnetic peace at the same time Rotation is shelved, changes the rotation angle of wind pressure rotating plate, and then control the air pressure in tubular air compartment;
The contactless wind pressure controller further includes wind pressure rotating plate cleaning device, and the wind pressure rotating plate cleaning device includes cleaning Device mounting rod, the cleaning device mounting rod are arranged in the entrance that wind pressure adjusts cylinder, set on cleaning device mounting rod Several vibrating springs are set, one or more cleaning band body is fixed on each vibrating spring.
CN201710459054.8A 2017-06-16 2017-06-16 A kind of PE preservative film and production technology with antibacterial functions Active CN107118427B (en)

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CN107964149A (en) * 2017-11-25 2018-04-27 郑州源冉生物技术有限公司 A kind of antibacterial insect-repelling mulching film and preparation method thereof
CN109265802A (en) * 2018-09-07 2019-01-25 中国科学院烟台海岸带研究所 A kind of antimicrobial preservative film for marine product
CN112721256A (en) * 2020-12-17 2021-04-30 尤晨曦 HDPE geomembrane preparation and forming process

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CN101824177A (en) * 2010-03-09 2010-09-08 陈迦乐 Specific antibacterial PE (polyethylene) preservative film
CN105419066A (en) * 2016-01-12 2016-03-23 东莞南星塑胶有限公司 Anti-bacterial preservative film and preparing method thereof
CN105711068A (en) * 2015-09-18 2016-06-29 安徽柒柒塑业有限公司 Production process for PE (polyethylene) film
CN105835335A (en) * 2015-01-12 2016-08-10 上海龙山凤机器制造有限公司 Star extruder

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Publication number Priority date Publication date Assignee Title
CN101824177A (en) * 2010-03-09 2010-09-08 陈迦乐 Specific antibacterial PE (polyethylene) preservative film
CN105835335A (en) * 2015-01-12 2016-08-10 上海龙山凤机器制造有限公司 Star extruder
CN105711068A (en) * 2015-09-18 2016-06-29 安徽柒柒塑业有限公司 Production process for PE (polyethylene) film
CN105419066A (en) * 2016-01-12 2016-03-23 东莞南星塑胶有限公司 Anti-bacterial preservative film and preparing method thereof

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