CN114559631A - Heavy packaging film production equipment and application thereof - Google Patents

Heavy packaging film production equipment and application thereof Download PDF

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Publication number
CN114559631A
CN114559631A CN202110389054.1A CN202110389054A CN114559631A CN 114559631 A CN114559631 A CN 114559631A CN 202110389054 A CN202110389054 A CN 202110389054A CN 114559631 A CN114559631 A CN 114559631A
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China
Prior art keywords
packaging film
heavy packaging
heavy
printing
support
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CN202110389054.1A
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Chinese (zh)
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CN114559631B (en
Inventor
陆伟锠
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Guangzhou Xinwen Plastic Co ltd
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Guangzhou Xinwen Plastic Co ltd
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Priority to CN202110389054.1A priority Critical patent/CN114559631B/en
Publication of CN114559631A publication Critical patent/CN114559631A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/355Conveyors for extruded articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/885External treatment, e.g. by using air rings for cooling tubular films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/80Packaging reuse or recycling, e.g. of multilayer packaging

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention provides heavy packaging film production equipment which comprises an equipment support, wherein the support is a bottom layer, a middle layer and a top layer which are connected through steps from bottom to top; the storage system is arranged on the middle layer or the top layer; the co-extrusion system is arranged on the bottom layer, and the feeding end of the co-extrusion system is communicated with the material storage system; the heavy packaging film outlet end of the co-extrusion system is connected with the vertical cooling system, and the vertical cooling system penetrates through the whole support; and the winding system is connected with the vertical cooling system through a heavy packaging film. With vertical the running through of cooling system on the support, compare and place cooling system in traditional level and saved a large amount of spaces, and rely on the support with storage system set up in the middle level or the top layer of support, utilize the action of gravity to provide raw materials for the coextrusion system through the gravity mode of flowing automatically, replaced the mode of traditional vacuum adsorption feeding completely, practiced thrift the feeding energy consumption.

Description

Heavy packaging film production equipment and application thereof
Technical Field
The invention belongs to the technical field of machinery, and particularly relates to heavy packaging film production equipment and application thereof.
Background
It is customary that a packaging film capable of carrying 10 kg to 50 kg is generally referred to as a heavy-duty packaging film, abbreviated as FFS packaging film. The FFS packaging film is an automatic forming pouring and sealing bag, is a packaging bag integrating bag making, material filling and sealing, is different from the existing packaging bag which is made into a bag firstly and then filled with content and then sealed, is generally three layers, is divided into an inner layer, a middle layer and an outer layer, and is produced by coextrusion through a three-layer coextrusion technology. The FFS packaging film is a high-speed packaging technology developed in recent years, has high packaging efficiency and low packaging cost, has unique raw material proportion, superior and environment-friendly performance, advanced equipment and device, is convenient to recycle and meets the requirement of a fourth type of international universal environment-friendly packaging material compared with a plastic woven bag. The conventional production line cools the heavy packaging film through horizontally arranged air cooling equipment, and the horizontal air cooling equipment needs to occupy a longer production space and is not beneficial to efficient production. And the feeding mode in the batching module of the conventional FFS packaging film production equipment adopts a vacuum material sucking mode to suck production raw materials, and the vacuum material sucking mode not only needs to consume excessive electric energy to increase the production cost, but also brings excessive noise and influences the production environment.
Disclosure of Invention
In order to solve the above technical problems, a first aspect of the present invention provides a heavy packaging film production apparatus, comprising an apparatus support, wherein the support comprises a bottom layer, a middle layer and a top layer, which are connected through a ladder, from bottom to top; the storage system is arranged on the middle layer or the top layer; the co-extrusion system is arranged on the bottom layer, and the feeding end of the co-extrusion system is communicated with the material storage system; the heavy packaging film outlet end of the co-extrusion system is connected with the vertical cooling system; and the winding system is connected with the vertical cooling system through a heavy packaging film.
Preferably, the heavy packaging film production equipment further comprises a printing pretreatment system arranged between the vertical cooling system and the rolling system, and the printing pretreatment system is connected with the vertical cooling system through the heavy packaging film; the printing system is connected with the printing pretreatment system through a heavy-duty packaging film; insert limit knurling system, the one end of inserting limit knurling system is connected with printing system through heavy packaging film, and the other end is connected with the rolling system through heavy packaging film.
Preferably, the storage system comprises a raw material storage tank arranged on the top layer; the raw material conveying pipeline is connected with the raw material storage box at one end; the proportioning machine, the one end of proportioning machine is linked together through raw materials transportation pipeline and raw materials bin, and the other end is connected with coextrusion system.
Preferably, the coextrusion system comprises a plurality of single-screw extruders; the co-extrusion die is respectively connected with each single-screw extruder; the single screw extruder comprises a supporting seat and an extruder main body, wherein the extruder main body is connected to the supporting seat and comprises a screw mechanism, a machine barrel is arranged outside the screw mechanism, and a negative pressure type cooling device is installed on the supporting seat.
Preferably, the vertical cooling system comprises a cooling mechanism penetrating through the whole support and a traction mechanism arranged on the top layer of the support; the cooling mechanism comprises an air ring cooling device, an inner cooling device, a foam stabilizing device and a constant temperature and humidity device from bottom to top in sequence; the traction mechanism comprises a rotary traction device and a secondary traction device.
Preferably, the printing pretreatment system comprises a deviation correcting device, and the deviation correcting device is connected with the second traction device through a heavy packaging film; the double-sided corona machine is connected with the deviation correcting device through the heavy packaging film.
Preferably, the printing system comprises a plurality of printers for printing in sequence; and the turnover device is detachably connected with the printing machine.
Preferably, the winding system comprises a support frame; the coil loading device is connected to the upper part of the support frame in a sliding manner; the winding device is positioned below the winding device on the support frame; the coil unloading device is connected to the rear part of the winding mechanism; and the centralized control system is electrically connected with the coil loading device, the winding device and the coil unloading device respectively and controls the winding operation.
Preferably, the roll loading device comprises a first power driving mechanism, a first transmission mechanism connected with the first power driving mechanism, and a roll loading manipulator connected with the first transmission mechanism.
The heavy packaging film production equipment is applied to the production of heavy packaging films.
Has the advantages that:
(1) according to the heavy packaging film production equipment provided by the invention, the cooling system vertically penetrates through the support consisting of the bottom layer, the middle layer and the top layer, a large amount of space is saved compared with the traditional horizontally placed cooling system, the material storage system is arranged on the middle layer or the top layer of the support by virtue of the support, production raw materials are provided for the co-extrusion system in a self-gravity self-flow mode by utilizing the gravity action, the traditional vacuum adsorption feeding mode is completely replaced, the feeding energy consumption is saved, the production cost is reduced, no noise pollution is generated, and the environment is protected.
(2) According to the invention, the printing pretreatment system, the printing system and the edge inserting and embossing system are integrated into the heavy packaging film production equipment, and the printing pretreatment, the printing, the edge inserting and the embossing are integrally formed with the production, so that the use condition of production personnel is greatly reduced, and the production efficiency is improved.
(3) The single-screw extruder adopts the negative pressure type cooling device to cool the machine barrel, so that the negative pressure type cooling device sucks heat generated by the machine barrel out of a production workshop, the cooling effect of the machine barrel can be greatly improved, and the working environment of the workshop and the quality of blown films cannot be influenced.
(4) According to the invention, the air ring cooling device, the inner cooling device, the foam stabilizing device, the constant temperature and humidity device and the double-roller cooling device are arranged in the cooling mechanism, the heavy packaging film is cooled through the multi-section cooling device, the full cooling of the heavy packaging film is ensured, and the foam is rapidly cooled and shaped through the foam stabilizing device and the constant temperature and humidity device, so that the production quality of the heavy packaging film is ensured.
(5) According to the invention, the deviation correcting device and the double-sided corona machine are arranged in front of the printing system, so that the stability of the size and the position of the heavy packaging film entering the printing system is ensured, and the printing quality is improved; on the other hand, the heavy packaging film is subjected to double-sided corona treatment, so that the adsorbability between the heavy packaging film and printing ink is improved, and the printing quality of the heavy packaging film is improved.
(6) According to the invention, the empty winding cores are reloaded by adopting the coil loading manipulator, so that the operation is convenient, the time and the labor are saved, the working efficiency is improved, and the coil reloading safety is improved. The centralized control system controls the coil loading device, the coil winding device and the coil unloading device, so that the automatic operation of coil loading, coil winding and coil unloading is realized, and the working efficiency of the whole coil winding process is improved.
Drawings
Fig. 1 is a schematic view of the entire structure in embodiment 1.
FIG. 2 is a schematic view of the overall structure of the single-screw extruder in example 1.
Fig. 3 is a schematic view of the overall configuration of the negative pressure control device in embodiment 1.
Fig. 4 is an overall structural schematic diagram of the winding machine in embodiment 1.
Fig. 5 is an overall structural schematic view of another angle of the winder in embodiment 1.
1-bracket, 2-storage system, 3-coextrusion system, 4-vertical cooling system, 5-printing pretreatment system, 6-printing system, 7-edge inserting and embossing system, 8-winding system, 9-raw material storage tank, 10-raw material conveying pipeline, 11-automatic weighing and proportioning machine, 12-air ring cooling device, 13-internal cooling device, 14-foam stabilizing device, 15-constant temperature and humidity device, 16-online thickness measuring device, 17-rotary drawing device, 18-two drawing device, 19-first herringbone clamping plate mechanism, 20-double roller cooling mechanism, 21-deviation correcting device, 22-double-sided corona machine, 23-printing machine, 24-turnover device, 25-staggered edge steering mechanism, 26-embossing mechanism, 27-edge inserting mechanism, 320-co-extrusion die, 31-direct drive motor, 32-supporting seat, 33-machine barrel, 34-pulley, 35-temperature zone, 36-filter screen, 37-cylinder, 38-mechanical arm, 39-connecting pipe, 310-valve, 311-rotating shaft, 312-screw, 81-supporting frame, 82-centralized control system, 83-first motor, 84-second motor, 85-first driving shaft, 86-gear, 87-vertical rack, 88-second driving shaft, 89-horizontal rack, 810-supporting seat, 811-winding roller, 812-tension roller, 813-reel changing cutter device, 814-reel unloading arm, 815-servo electric cylinder, 816-pre-winding roller, pre-winding roller, 817-carrying plate, 818-manipulator.
Detailed Description
For purposes of the following detailed description, it is to be understood that the invention may assume various alternative variations and step sequences, except where expressly specified to the contrary. Moreover, other than in any operating examples, or where otherwise indicated, all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques.
Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range-describing features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to encompass any and all subranges subsumed therein. For example, a stated range from "1 to 10" should be considered to include any and all subranges between the minimum value of 1 and the maximum value of 10. Exemplary subranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, and the like.
In order to solve the technical problems, the invention provides heavy packaging film production equipment in a first aspect, which comprises an equipment support, wherein the support is a bottom layer, a middle layer and a top layer which are connected through steps from bottom to top; the storage system is arranged on the middle layer or the top layer; the co-extrusion system is arranged on the bottom layer, and the feeding end of the co-extrusion system is communicated with the material storage system; the heavy packaging film outlet end of the co-extrusion system is connected with the vertical cooling system; and the winding system is connected with the vertical cooling system through a heavy packaging film.
The heavy packaging film production equipment designed by the inventor vertically penetrates the cooling system on the support consisting of the bottom layer, the middle layer and the top layer, so that a large amount of space is saved compared with the traditional horizontally placed cooling system. The heavy packaging film production equipment in the technical scheme occupies 200 square meters at the bottom layer, 9 square meters at the middle layer and 64 square meters at the top layer, and at least occupies 8m 25m 18m in comparison with the traditional production line, so that the occupied space is greatly saved, and the operation efficiency is improved.
As a preferred technical scheme, the heavy packaging film production equipment further comprises a printing pretreatment system arranged between the vertical cooling system and the rolling system, wherein the printing pretreatment system is connected with the vertical cooling system through the heavy packaging film; the printing system is connected with the printing pretreatment system through a heavy-duty packaging film; insert limit knurling system, the one end of inserting limit knurling system is connected with printing system through heavy packaging film, and the other end is connected with the rolling system through heavy packaging film.
The inventor integrates a printing pretreatment system, a printing system and an edge inserting and embossing system into heavy packaging film production equipment, and the printing pretreatment, the printing, the edge inserting and the embossing are integrally formed with the production, so that the use condition of production personnel is greatly reduced, and the production efficiency is improved.
As a preferred technical solution, the stock storage system comprises a raw material storage tank mounted on the top layer; the raw material conveying pipeline is connected with the raw material storage box at one end; the proportioning machine, the one end of proportioning machine is linked together through raw materials transportation pipeline and raw materials bin, and the other end is connected with coextrusion system.
As a preferred technical scheme, the dispensing machine is an automatic weighing dispensing machine.
The inventor relies on the support of compriseing bottom, middle level and top layer, sets up the storage system in the top layer of support, utilizes the action of gravity to provide raw materials for the coextrusion system through the mode of gravity flow, has replaced the mode of traditional vacuum adsorption feeding completely, has practiced thrift the feeding energy consumption, has reduced manufacturing cost, and can not produce noise pollution and be favorable to the environmental protection. And the materials are mixed by the automatic weighing and mixing machine and fed as required, so that higher feeding accuracy is ensured, the use of operators is reduced, and the production efficiency is improved.
As a preferred technical scheme, the coextrusion system comprises a plurality of single-screw extruders; the co-extrusion die is respectively connected with each single-screw extruder; the single screw extruder comprises a supporting seat and an extruder main body, wherein the extruder main body is connected to the supporting seat and comprises a screw mechanism, a machine barrel is arranged outside the screw mechanism, and a negative pressure type cooling device is installed on the supporting seat.
As a preferable technical scheme, the co-extrusion system comprises three single-screw extruders, and the three single-screw extruders respectively extrude the inner layer, the middle layer and the outer layer of the heavy-duty packaging film.
As a preferred technical solution, the screw mechanism includes a screw; the direct drive motor is connected to one end of the screw rod; and the filter screen is connected to the other end of the screw rod.
As a preferable technical solution, the negative pressure type cooling device includes a negative pressure fan, and a plurality of negative pressure control mechanisms connected to the negative pressure fan through a ventilation duct.
As a preferable technical solution, the negative pressure control device includes an electromagnetic valve, a driving device electrically connected to the electromagnetic valve, and a control valve connected to the driving device.
As a preferable technical solution, the driving device is a cylinder, and the cylinder is electrically connected to the solenoid valve.
As a preferred technical scheme, the control valve comprises a linkage mechanism connected with the air cylinder and a valve connected with the linkage mechanism, the linkage mechanism comprises a mechanical arm connected with a power output shaft of the air cylinder and a rotating shaft rotationally connected with the mechanical arm, and the valve is connected to the rotating shaft.
As a preferable technical scheme, a connecting pipe is sleeved on the periphery of the valve and communicated with the ventilating pipe.
As a preferred technical scheme, the machine barrel is sequentially provided with 6 temperature zones from the end of the direct drive motor to the end of the filter screen.
As a preferred technical scheme, the negative pressure fan is connected with 6 negative pressure control devices through pipelines, and the negative pressure control devices correspond to each temperature zone respectively.
The screw rod is driven to rotate by the direct-drive motor, the rotating speed of the direct-drive motor is up to 150r/min, the rotating requirement of the screw rod can be met, a reduction gearbox is not needed to be used for reducing the speed, the traditional alternating current motor is replaced to drive the reduction gearbox, the reduction gearbox drives the screw rod to rotate, the efficiency can be improved by 25-30%, the production efficiency is improved, and the production cost is reduced. The maintenance of the direct drive motor only needs dozens of grams of lubricating grease, and the maintenance cost during production can be reduced, the traditional driving mode needs to replace about 30L of gear oil every 5000 hours, the waste gear oil is difficult to recycle, the maintenance cost is high, the environment is polluted, and the resonance of the whole main machine can be caused due to the fact that the traditional reduction gearbox has high speed and high noise and vibration, and the quality of products is influenced. And the noise and the vibration of the direct drive motor are very small, the quality of film blowing production cannot be influenced, and the stability of the single-screw extruder is improved. The inventor adopts negative-pressure air fan to cool down the barrel, and the negative-pressure air fan can greatly improve the cooling effect of the barrel by sucking the heat generated by the barrel out of a production workshop, and the working environment and the film blowing quality of the workshop can not be influenced. Different temperature zones of the machine barrel are independently controlled through different negative pressure control devices, the machine barrel can be cooled better, and the three single-screw extruders extrude layers of the heavy packaging film through the co-extrusion die and form the film barrel.
As a preferred technical solution, the vertical cooling system comprises a cooling mechanism penetrating through the whole support and a traction mechanism mounted on the top layer of the support; the cooling mechanism comprises an air ring cooling device, an inner cooling device, a foam stabilizing device and a constant temperature and humidity device from bottom to top in sequence; the traction mechanism comprises a rotary traction device and a secondary traction device.
As a preferable technical scheme, the internal cooling device is an IBC internal cooling device, the IBC internal cooling device comprises an air inlet mechanism, an air exhaust mechanism and a plurality of ultrasonic sensors, and the ultrasonic sensors are electrically connected with the air inlet mechanism and the air exhaust mechanism.
As a preferable technical scheme, an online thickness measuring device is arranged between the constant temperature and humidity device and the rotary pulling device, and the online thickness measuring device comprises a PID control executing mechanism.
The heavy packaging film is drawn by the rotary drawing device after being produced by the co-extrusion die and respectively passes through the air ring cooling device, the inner cooling device, the foam stabilizing device and the double-roller cooling device in sequence, and a secondary drawing device is specially arranged for ensuring that the extrusion molding of the heavy packaging film is not influenced when the subsequent printing pretreatment system, the printing system and the edge inserting embossing system are in failure. The plasticized raw materials are blown into a cylindrical heavy packaging film by a co-extrusion die and an air ring cooling device, and the outer side of the heavy packaging film is cooled. The inner cooling device cools the inside of the film cylinder by blowing cold air into the inside of the film cylinder, and can achieve the effect of sufficient cooling of the film cylinder by cooling the outside of the film cylinder and cooling the inside of the film cylinder. The inventor blows cold air into the film tube through the air inlet mechanism by adopting the IBC inner cooling device, discharges hot air generated in the film tube through the air exhaust mechanism, measures the diameter of the film tube through a plurality of ultrasonic sensors which are arranged in the circumferential direction of the film tube at equal intervals, feeds corresponding information back to the air inlet mechanism and the air exhaust mechanism, controls the air balance of the air inlet mechanism and the air exhaust mechanism, keeps the size of the film tube stable, and improves the production quality of heavy packaging films. The film cylinder enters the bubble stabilizing device and the constant temperature and humidity device after passing through the inner cooling device, so that the film bubble is rapidly cooled and shaped, and the production quality of the heavy packaging film is ensured. The inventor is provided with online thickness measuring device between constant temperature and humidity device and the device of leading soon, through with online thickness measuring device measurement set up in constant temperature and humidity device after, ensure measuring result's stability, including PID control actuating mechanism in the online thickness measuring device, measure the thickness of packing heavy membrane through PID control actuating mechanism to feed back corresponding test signal in wind ring cooling device, adjust the output amount of wind ring cooling device, guarantee heavy packaging film's production quality. The heavy packaging film in the shape of a film cylinder enters a rotary drawing system after passing through an online thickness measuring device, the heavy packaging film is pressed into a film shape through the rotary drawing system, and then the film shape is drawn into a second drawing device.
As a preferred technical scheme, the printing pretreatment system comprises a deviation correcting device, wherein the deviation correcting device is connected with a second traction device through a heavy-duty packaging film; the double-sided corona machine is connected with the deviation correcting device through the heavy packaging film.
As a preferred technical solution, the printing system comprises a plurality of printers for printing in sequence; and the turnover device is detachably connected with the printing machine.
As a preferred solution, the printing system comprises three printers for printing in sequence.
The heavy packaging film in the shape of a diaphragm enters a deviation correcting device and a double-sided corona machine from a two-way traction device, and the deviation correcting device ensures the stability of the size and the position of the heavy packaging film when the heavy packaging film enters a printing system, so that the printing quality is improved; through carrying out two-sided corona treatment to heavy packaging film, improve the adsorptivity between heavy packaging film and the printing ink, improve the printing quality of heavy packaging film. The inventor has set up three printing machines among this technical scheme, can realize the printing of three kinds of different colours, through detachable connection turning device on the printing machine, can make heavy packaging film overturn during the printing, can realize the printing effect of heavy packaging film tow sides difference.
As a preferred technical scheme, the winding system comprises a support frame; the coil loading device is connected to the upper part of the support frame in a sliding manner; the winding device is positioned below the winding device on the support frame; the coil unloading device is connected to the rear part of the winding mechanism; and the centralized control system is electrically connected with the coil loading device, the winding device and the coil unloading device respectively and controls the winding operation.
As a preferable technical scheme, the coil loading device comprises a first power driving mechanism, a first transmission mechanism connected with the first power driving mechanism, and a coil loading manipulator connected with the first transmission mechanism.
As a preferred technical scheme, the winding device is positioned below the winding device on the support frame, and the winding device comprises a second power driving mechanism and a winding mechanism connected with the second power driving mechanism.
As a preferred technical scheme, the winding mechanism comprises a second transmission mechanism connected with a second power driving mechanism, a winding roller and a plurality of tension rollers respectively connected with the second transmission mechanism, and a reel changing cutter device connected with the winding roller, wherein the tension rollers and the winding roller keep the same rotating speed.
As a preferred technical solution, the reel-changing cutter device comprises an integral cutter.
As a preferable technical scheme, the coil stripping device comprises a third power driving mechanism and a coil stripping arm detachably connected with the third power driving mechanism.
As a preferred technical scheme, the rolling system further comprises a pre-rolling device, wherein the pre-rolling device comprises supporting seats connected to two sides of the supporting frame in a sliding mode, pre-rolling rollers arranged between the two supporting seats and a carrying plate.
The empty roll core is reloaded by adopting the roll loading manipulator, so that the operation is convenient, the time and the labor are saved, the working efficiency is improved, and the roll replacing safety is improved. The centralized control system controls the coil loading device, the coil winding device and the coil unloading device, so that the automatic operation of coil loading, coil winding and coil unloading is realized, and the working efficiency of the whole coil winding process is improved. The coil stripping arm is controlled by the servo motor, so that the whole equipment is cleaner and cleaner, the oil leakage condition is reduced, the maintenance fault points are reduced, and the whole coil stripping process is more stable and accurate. The detachable coil stripping arm enables the coil stripping arm to be mounted and dismounted more conveniently, maintenance cost is reduced, and the modularized coil changing cutter improves the cutting-off rate and the coil changing success rate of coiled materials.
The heavy packaging film production equipment is applied to the production of heavy packaging films.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Example 1
In order to solve the above technical problem, as shown in fig. 1, a first aspect of the present embodiment provides a heavy packaging film production apparatus, which includes an apparatus support 1, where the support 1 is, from bottom to top, a bottom layer, a middle layer and a top layer which are connected by a step; the material storage system 2 is arranged on the top layer; the co-extrusion system 3 is arranged on the bottom layer, and the feeding end of the co-extrusion system is communicated with the material storage system; the heavy packaging film outlet end of the co-extrusion system 3 is connected with the vertical cooling system 4; the printing pretreatment system 5 is connected with the vertical cooling system 4 through a heavy-duty packaging film; the printing system 6 is connected with the printing pretreatment system 4 through a heavy-duty packaging film; insert limit knurling system 7, insert limit knurling system 7's one end is connected with printing system 6 through heavy packaging film, and the other end is connected with rolling system 8 through heavy packaging film.
The storage system comprises a raw material storage box 9, a raw material conveying pipeline 10 and an automatic weighing and proportioning machine 11; raw materials transportation pipeline 10's one end is connected with raw materials bin 9, and the other end is connected with automatic weighing proportioning machine 11, provides the raw materials for automatic weighing proportioning machine 11, raw materials bin 9 is installed in the top layer of support 1, and automatic weighing proportioning machine 11 is installed in the bottom layer of support 1, and the mode of flowing automatically through the dead weight provides raw materials for coextrusion system 3, has replaced the mode of traditional vacuum adsorption feeding completely, has practiced thrift the feeding energy consumption, has reduced manufacturing cost, and can not produce noise pollution and be favorable to the environmental protection.
The co-extrusion system 3 comprises 3 single-screw extruders and a co-extrusion die 320, wherein the co-extrusion die 320 is respectively connected with each single-screw extruder, and the 3 single-screw extruders are used for respectively extruding the inner layer, the middle layer and the outer layer of the heavy packaging film. As shown in fig. 2-3, the single screw extruder includes a supporting seat 32 and an extruder main body, the extruder main body is connected to the supporting seat 32, the extruder main body includes a screw mechanism, a cylinder 33 is arranged outside the screw mechanism, and a negative pressure type cooling device is installed on the supporting seat 32. The screw mechanism comprises a screw 312, a direct drive motor 31 and a filter screen 36, wherein the direct drive motor 31 is connected to one end of the screw 312, and the filter screen 36 is connected to the other end of the screw 312. The raw materials are plasticized in the screw 312, mixed, filtered by the filter screen 36 to remove impurities, then fed into the inner co-extrusion mold 320, and blown out of the co-extrusion mold 320 to be cooled and formed. The negative pressure type cooling device comprises a negative pressure fan and 6 negative pressure control mechanisms connected with the negative pressure fan through a ventilation pipeline. The negative pressure control device comprises an electromagnetic valve, a driving device electrically connected with the electromagnetic valve and a control valve connected with the driving device. The driving device is an air cylinder 37, and the air cylinder 37 is electrically connected with the electromagnetic valve. The control valve comprises a linkage mechanism connected with the air cylinder 37 and a valve connected with the linkage mechanism, the linkage mechanism comprises a mechanical arm 38 connected with a power output shaft of the air cylinder 37 and a rotating shaft 311 rotatably connected with the mechanical arm 38, and the valve 310 is connected to the rotating shaft 311. The periphery of the valve 310 is sleeved with a connecting pipe 39, and the connecting pipe 39 is communicated with the ventilation pipe. The machine barrel is sequentially provided with 6 temperature zones from the end of the direct drive motor to the end of the filter screen, and the temperature zones are respectively connected with 6 negative pressure control mechanisms. When different temperature zones 5 need to be cooled, only the corresponding negative pressure control devices need to be opened, so that the cooling is more targeted, and the cooling efficiency of the negative pressure fan on the machine barrel 33 can be improved. According to the technical scheme, the direct drive motor is used for driving the screw 312 to rotate, the rotating speed of the direct drive motor 31 is up to 150r/min, the rotating requirement of the screw 312 can be met, the reduction gearbox is not needed to be used for reducing speed, the traditional alternating current motor is replaced for driving the reduction gearbox, the reduction gearbox drives the screw to rotate, the efficiency can be improved by about 30%, the production efficiency is improved, and the production cost is reduced. The maintenance of the direct drive motor 31 only needs dozens of grams of lubricating grease, and the maintenance cost during production can be reduced. And the noise and vibration of the direct drive motor 31 are small, the quality of film blowing production cannot be influenced, and the stability of the single-screw extruder is improved. Direct drive motor 31 among this technical scheme adopts water-cooled mode to cool off, utilizes the circulating water to take the heat out of the workshop outside and cools down, and the circulating water recycles, can improve the ambient temperature of production area greatly, because do not have the influence of cooling air current, can not influence production, can further improve single screw extruder's stability. When the machine barrel 33 needs to be cooled, the negative pressure fan is turned on, the power output end of the air cylinder 37 is controlled to do linear motion through the electromagnetic valve to drive the mechanical arm 38 to rotate, the rotating mechanical arm 38 drives the rotating shaft 311 to rotate, the rotating shaft 311 drives the valve 310 to rotate, after the valve 310 rotates, a gap is generated between the valve 310 and the connecting pipe 39 and is in an open state, the ventilating pipeline, the connecting pipe 39 and a workshop are in a communicated state, heat generated by the machine barrel 33 is sucked out of the workshop through the negative pressure fan, the purpose of cooling the machine barrel is achieved, meanwhile, the temperature of the workshop can be greatly improved, and production of blown films cannot be influenced. When the machine barrel does not need to be cooled, the negative pressure fan is turned off, the power output end of the air cylinder 37 is controlled by the electromagnetic valve to do linear motion to push the mechanical arm 38 to rotate, the rotating mechanical arm 38 drives the rotating shaft 311 to rotate, the rotating shaft 311 drives the valve 310 to rotate, the valve 310 and the connecting pipe 39 are in a closed state, and the ventilation pipeline and a workshop are in a disconnected state after the valve 310 rotates.
The vertical cooling system 4 comprises a cooling mechanism penetrating through the whole support and a traction mechanism arranged at the top layer of the support; the cooling mechanism comprises an air ring cooling device 12, an inner cooling device 13, a foam stabilizing device 14 and a constant temperature and humidity device 15 from bottom to top in sequence; the traction mechanism comprises a rotary traction device 17 and a secondary traction device 18. The air ring cooling device 12 is provided in the circumferential direction of the coextrusion die 320, and blows the plasticized material into a cylindrical heavy packaging film and cools the outside thereof. The internal cooling device 13 is an IBC internal cooling device, the IBC internal cooling device comprises an air inlet mechanism, an air exhaust mechanism and 4 ultrasonic sensors, and the 4 ultrasonic sensors are electrically connected with the air inlet mechanism and the air exhaust mechanism. The inner cooling device 13 cools the inside of the film tube by blowing cold air into the inside of the film tube, and can sufficiently cool the film tube by cooling the outside of the film tube and cooling the inside of the film tube. The inventor blows cold air into the film tube through the air inlet mechanism by adopting the IBC inner cooling device, discharges hot air generated in the film tube through the air exhaust mechanism, measures the diameter of the film tube through 4 ultrasonic sensors which are arranged in the circumferential direction of the film tube at equal intervals, feeds corresponding information back to the air inlet mechanism and the air exhaust mechanism, controls the air balance of the air inlet mechanism and the air exhaust mechanism, keeps the size of the film tube stable, and improves the production quality of heavy packaging films. The film cylinder enters the bubble stabilizing device 14 and the constant temperature and humidity device 15 after passing through the inner cooling device, so that the film bubble is rapidly cooled and shaped, and the production quality of the heavy packaging film is ensured. An online thickness measuring device 16 is arranged between the constant temperature and humidity device 15 and the rotary pulling device 17, and the online thickness measuring device 16 comprises a PID control executing mechanism. The inventor is provided with an online thickness measuring device 16 between a constant temperature and humidity device 15 and a rotary traction device 17, the online thickness measuring device 16 is arranged behind the constant temperature and humidity device 15 in a measuring mode, stability of a measuring result is guaranteed, the online thickness measuring device 16 comprises a PID control executing mechanism, the thickness of a heavy packaging film is measured through the PID control executing mechanism, corresponding testing signals are fed back to an air ring cooling device 12, output air volume of the air ring cooling device 12 is adjusted, and production quality of the heavy packaging film is guaranteed. The heavy packaging film of the film tube shape enters a rotary pulling device 17 after passing through an online thickness measuring device 16, the heavy packaging film is pressed into a film shape through the rotary pulling device 17, and then the film is pulled into a two-pulling device 18. The rotary drawing device 17 includes a first herringbone board mechanism 19 for sandwiching the cylindrical heavy packaging film into a film sheet, and a double-roll cooling mechanism 20 for cooling the heavy packaging film.
The printing pretreatment system comprises a deviation correcting device 21, wherein the deviation correcting device 21 is connected with a second traction device 18 through a heavy packaging film; a double-sided corona machine 22, wherein the double-sided corona machine 22 is connected with the deviation correcting device 18 through a heavy-duty packaging film. The printing system comprises 3 printers 23 for sequential printing; and the turnover device 24, wherein the turnover device 24 is detachably connected with the printing machine 23. The heavy packaging film in the shape of a diaphragm enters a deviation correcting device 21 and a double-sided corona machine 22 from a second traction device 18, and the deviation correcting device 21 ensures the stability of the size and the position of the heavy packaging film when the heavy packaging film enters a printing system, so that the printing quality is improved; through carrying out two-sided corona treatment to heavy packaging film, improve the adsorptivity between heavy packaging film and the printing ink, improve the printing quality of heavy packaging film. The inventor has set up three printing machines 23 among this technical scheme, can realize the printing of three kinds of different colours, through detachable connection turning device 24 on printing machine 23, can make heavy packaging film overturn during the printing, can realize the printing effect of heavy packaging film tow sides difference.
The edge inserting and embossing system sequentially comprises an edge staggering steering mechanism 25, an embossing mechanism 26 and an edge inserting mechanism 27 from top to bottom. The method comprises the steps of performing surface anti-skid grain pressing treatment and M edge inserting treatment on a heavy packaging film through an edge inserting and embossing system, changing the edge folding position of a diaphragm heavy packaging film in an edge folding steering mechanism 25 to prevent the defect of reduced tensile strength caused by repeated folding of the same edge, then flushing air into the interior of the sheet heavy packaging film after changing the edge folding position of the diaphragm heavy packaging film to enable the heavy packaging film to be in a film barrel-shaped structure, arranging a character-shaped clamping plate mechanism in the edge folding steering mechanism 25 to better ensure the barrel-shaped structure of the heavy packaging film, adding embossing rollers into the film barrel-shaped heavy packaging film to emboss grains, leaving concave-convex grains on the surface of the interior of the heavy packaging film to play an anti-skid role, then entering an edge inserting mechanism 27 to insert M edges, thus utilizing the square shape after packaging, arranging a character-shaped clamping plate mechanism in the edge inserting mechanism 27 to better ensure the barrel-shaped structure of the heavy packaging film, after the M edges are inserted, air in the film cylinder is pressed out by the double rollers, and the film cylinder is pressed into a film-shaped structure again and enters a rolling system.
As shown in fig. 4 and 5, the rolling system includes a support frame; the coil loading device is connected to the upper part of the support frame in a sliding manner; the winding device is positioned below the winding device on the support frame; the coil unloading device is connected to the rear part of the winding mechanism; and the centralized control system is electrically connected with the coil loading device, the winding device and the coil unloading device respectively and controls the winding operation. The coil loading device comprises a first power driving mechanism, a first transmission mechanism connected with the first power driving mechanism and a coil loading manipulator connected with the first transmission mechanism. The winding device is positioned below the winding device on the support frame and comprises a second power driving mechanism and a winding mechanism connected with the second power driving mechanism. The winding mechanism comprises a second transmission mechanism connected with a second power driving mechanism, a winding roller and a plurality of tension rollers which are respectively connected with the second transmission mechanism, and a reel changing cutter device connected with the winding roller, and the tension rollers and the winding roller keep the same rotating speed. The roll-changing cutter device 813 comprises an integral cutter. The coil stripping device comprises a third power driving mechanism and a coil stripping arm 814 detachably connected with the third power driving mechanism. The first power driving mechanism is two motors which are fixedly arranged on the support frame in parallel and respectively comprise a first motor 83 and a second motor 84, and the first transmission mechanism comprises a vertical transmission mechanism connected with the first motor 83 and a horizontal transmission mechanism connected with the second motor 84. The vertical transmission mechanism comprises a first transmission shaft 85 connected with the first motor 83 through a regulator, gears respectively arranged at two ends of the first transmission shaft 85, and vertical racks 87 vertically arranged on two sides of the support frame 81 and meshed with the gears, wherein the lower parts of the vertical racks 87 are connected with a manipulator 818 for loading rolls, and the vertical transmission mechanism realizes the up-and-down motion of the manipulator 818 for loading rolls. The horizontal transmission mechanism comprises a second transmission shaft 88 connected with the second motor 84 through a regulator, gears 86 respectively arranged at two ends of the second transmission shaft 88, and horizontal racks 89 horizontally arranged on two sides of the support frame 81 and meshed with the gears 86, and the horizontal movement of the manipulator 818 for loading the coil is realized through the horizontal transmission mechanism. The accuracy and safety of the manipulator for loading the coil to change the empty core is improved by the horizontal movement and the up-and-down movement of the manipulator 818 for loading the coil. The pre-rolling device comprises supporting seats 810 connected to two sides of the supporting frame 81 in a sliding mode, pre-rolling rollers 816 and a carrying plate 817 arranged between the two supporting seats 810, and the supporting seats 810 are driven to slide under the relative sliding action of the supporting seats 810 relative to the supporting frame 81, so that the carrying plate 817 can transport coiled materials. The coiled material passes through the pre-winding roller 816 and reaches the winding device, and the relative position of the pre-winding device and the winding device is adjusted by adjusting the position of the supporting seat 810. The winding device comprises a second power driving mechanism and a winding mechanism connected with the second power driving mechanism, the winding mechanism comprises a second transmission mechanism connected with the second power driving mechanism, a winding roller 811 and 85 tension rollers 812 respectively connected with the second transmission mechanism, and a reel changing cutter device 813 connected with the winding roller 811, the tension rollers 812 and the winding roller 811 keep the same rotating speed through the control of the centralized control system 82, the winding tension is ensured to be the same, and the winding quality is improved. The roll changing cutter device 813 comprises an integral cutter, the integral cutter is controlled by the centralized control system 82, the coiled material is automatically cut off when the roll diameter of the coiled material meets a certain requirement, the second power driving mechanism is a motor, and the second transmission mechanism is a gear transmission mechanism. The coil stripping device comprises a third power driving mechanism and a coil stripping arm 814 detachably connected with the third power driving mechanism, the third power driving mechanism is a servo motor, a servo electric cylinder 815 of the servo motor is detachably connected with the coil stripping arm 814, and the convenience of mounting and dismounting the coil stripping arm 814 is improved. The coil which is finished by the coiled material and cut is transported to the coil unloading arm 814 through the carrier plate 817, the servo motor drives the coil unloading arm 814 to unload the coil to the ground, meanwhile, the centralized control system 82 controls the coil loading manipulator to load the coil core and start a new round of rolling, and the high-speed automatic coil loading, rolling and coil unloading operation in the technical scheme greatly improves the rolling efficiency. The heavy packaging film production equipment described in the embodiment is applied to the production of heavy packaging films.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content of the above disclosure into equivalent embodiments with equivalent changes, but all those simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.

Claims (10)

1. The heavy packaging film production equipment is characterized by comprising an equipment support, wherein the support is a bottom layer, a middle layer and a top layer which are connected through steps from bottom to top; the storage system is arranged on the middle layer or the top layer; the co-extrusion system is arranged on the bottom layer, and the feeding end of the co-extrusion system is communicated with the material storage system; the heavy packaging film outlet end of the co-extrusion system is connected with the vertical cooling system, and the vertical cooling system penetrates through the whole support; and the winding system is connected with the vertical cooling system through a heavy packaging film.
2. The heavy packaging film production equipment according to claim 1, further comprising a printing pretreatment system arranged between the vertical cooling system and the rolling system, wherein the printing pretreatment system is connected with the vertical cooling system through the heavy packaging film; the printing system is connected with the printing pretreatment system through a heavy-duty packaging film; insert limit knurling system, the one end of inserting limit knurling system is connected with printing system through heavy packaging film, and the other end is connected with the rolling system through heavy packaging film.
3. The heavy packaging film production equipment of claim 1, wherein the stock system comprises a raw material storage tank mounted to a top layer; the raw material conveying pipeline is connected with the raw material storage box at one end; the proportioning machine, the one end of proportioning machine is linked together through raw materials transportation pipeline and raw materials bin, and the other end is connected with coextrusion system.
4. The heavy duty packaging film production facility of claim 1, wherein said co-extrusion system comprises a plurality of single screw extruders; the co-extrusion die is respectively connected with each single-screw extruder; the single screw extruder comprises a supporting seat and an extruder main body, wherein the extruder main body is connected to the supporting seat and comprises a screw mechanism, a machine barrel is arranged outside the screw mechanism, and a negative pressure type cooling device is installed on the supporting seat.
5. The heavy packaging film production equipment of claim 1, wherein the vertical cooling system comprises a cooling mechanism penetrating through the entire support and a traction mechanism mounted on the top layer of the support; the cooling mechanism comprises an air ring cooling device, an inner cooling device, a foam stabilizing device and a constant temperature and humidity device from bottom to top in sequence; the traction mechanism comprises a rotary traction device and a secondary traction device.
6. The heavy packaging film production equipment as claimed in claim 2, wherein the printing pretreatment system comprises a deviation correcting device connected with the two-pulling device through the heavy packaging film; the double-sided corona machine is connected with the deviation correcting device through the heavy packaging film.
7. A heavy packaging film production apparatus as recited in claim 2 or 6, wherein said printing system comprises a plurality of printing presses that print in sequence; and the turnover device is detachably connected with the printing machine.
8. The heavy packaging film production facility of claim 1, wherein the take-up system comprises a support frame; the coil loading device is connected to the upper part of the support frame in a sliding manner; the winding device is positioned below the winding device on the support frame; the coil unloading device is connected to the rear part of the winding mechanism; and the centralized control system is electrically connected with the coil loading device, the winding device and the coil unloading device respectively and controls the winding operation.
9. The heavy packaging film production equipment as claimed in claim 8, wherein the roll-loading device comprises a first power driving mechanism, a first transmission mechanism connected with the first power driving mechanism, and a roll-loading manipulator connected with the first transmission mechanism.
10. Use of a heavy packaging film production apparatus according to any one of claims 1 to 9 in the production of heavy packaging film.
CN202110389054.1A 2021-04-12 2021-04-12 Heavy packaging film production equipment and application thereof Active CN114559631B (en)

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