CN116277599B - Raw material pretreatment assembly line and method for PETG sheet production - Google Patents
Raw material pretreatment assembly line and method for PETG sheet production Download PDFInfo
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- CN116277599B CN116277599B CN202310312741.2A CN202310312741A CN116277599B CN 116277599 B CN116277599 B CN 116277599B CN 202310312741 A CN202310312741 A CN 202310312741A CN 116277599 B CN116277599 B CN 116277599B
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- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 title claims abstract description 146
- 239000002994 raw material Substances 0.000 title claims abstract description 123
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 100
- 238000001125 extrusion Methods 0.000 claims abstract description 92
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- 238000000605 extraction Methods 0.000 claims abstract description 50
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000007791 dehumidification Methods 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 20
- 238000001179 sorption measurement Methods 0.000 claims abstract description 19
- 238000012216 screening Methods 0.000 claims description 44
- 230000000087 stabilizing effect Effects 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000002194 synthesizing effect Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to the technical field of sheet processing, in particular to a raw material pretreatment assembly line for PETG sheet production and a treatment method, comprising a dehumidification drying system, an extraction extrusion system and an impurity adsorption filtration system, wherein the dehumidification drying system is arranged at the inner top of a machine case, and the output end of the dehumidification drying system is connected with the extraction extrusion system through an automatic transmission mechanism; the raw material pretreatment assembly line and the treatment method for producing the PETG sheet can pretreat the PETG raw material of the synthesized PETG sheet, namely, the drying and dehumidification of the PETG raw material are finished through the internal parts of a dehumidification and drying system, the extrusion plasticizing of the PETG raw material after the drying and dehumidification is finished through the internal parts of an extraction and extrusion system, and the heavy metal adsorption after the extrusion plasticizing is finished through an impurity adsorption and filtration system, so that the quality of the PETG raw material is better, the quality of the PETG sheet synthesized by processing is guaranteed, and meanwhile, the assembly line is automatically carried out, and the efficiency and the effect of the processing and production are improved.
Description
Technical Field
The invention relates to the technical field of sheet processing, in particular to a raw material pretreatment assembly line for PETG sheet production, and in particular relates to a raw material pretreatment assembly line for PETG sheet production and a treatment method.
Background
The PETG sheet has outstanding toughness and high impact strength, the impact strength is 3-10 times of that of modified polyacrylate, the PETG sheet has a wide processing range, high mechanical strength and excellent flexibility, and compared with PVC, the PETG sheet has high transparency, good gloss, easy printing and environmental protection advantages, is an excellent thick-wall transparent product, can be widely applied to markets such as plates, sheets, high-performance shrink films, bottles, special-shaped materials and the like by adopting the traditional extrusion, injection molding, blow molding, plastic suction molding and other molding methods, can be subjected to secondary processing performance, can be subjected to conventional machining modification, and needs to pretreat PETG raw materials for synthesizing the PETG sheet when the PETG sheet is processed and produced so as to ensure the quality of the PETG sheet processed and synthesized, but the prior art has the problems of poor processing effect and low processing efficiency when the PETG raw materials for synthesizing the PETG sheet are processed, and influences the quality and efficiency of the PETG sheet after the subsequent production is finished.
A drying apparatus for drying pretreated flexible sheet products, which has been found by the applicant to be of application No. CN201880077177.8, comprises a feeding device for feeding sheet products in a direction, a drying device for drying the products as they are fed, said drying device having at least one open operating unit with a chamber through which the feeding device is designed to pass and at least one applicator connected to a corresponding generator for applying an alternating electromagnetic field in the RF range, and a control unit for controlling the generator and/or the applicator, which invention is configured by means of the oscillation frequency of said field and by means of at least one blowing device and/or at least one suction device for delivering hot air, by means of the control unit to vary the speed of the feeding device or vary the time of application of the electromagnetic field, and sensor means for detecting one or more physical and/or thermodynamic parameters of the operating unit and the temperature of the sheet, and achieving a complete drying of the compound layer.
However, when the sheet is actually processed, produced and molded, the inside of the sheet raw material is inevitably doped with heavy metals, so that the quality of a product after production is affected, meanwhile, after the sheet is dried, the sheet is required to be extruded, and the rotational force generated by extrusion can cause heat generated by moving the dried sheet, so that the quality of the sheet is reduced, and meanwhile, the problems of poor treatment effect and low treatment efficiency also exist, so that the quality and the efficiency of the PETG sheet after the subsequent production are affected.
Disclosure of Invention
The utility model provides a solve this application and put forward when actually carrying out processing production shaping to this sheet with raw materials pretreatment assembly line and processing method for PETG sheet production, this sheet raw materials inside can not be doped some heavy metals, influence the quality of product after the production is accomplished, simultaneously after drying it, need extrude this sheet, the rotation force that extrudes this sheet and produce this time can lead to this dry sheet to produce the heat when removing, lead to the quality of this sheet to reduce, there is the problem that the treatment effect is not good and treatment effeciency is low simultaneously, influence the quality and the efficiency of PETG sheet after the follow-up production is accomplished.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
a raw material pretreatment assembly line for PETG sheet production comprises a dehumidifying and drying system, an extraction and extrusion system and an impurity adsorption and filtration system;
the dehumidifying and drying system is arranged at the inner top of the case, and the output end of the dehumidifying and drying system is connected with the extraction and extrusion system through an automatic transmission mechanism;
the side of the case is provided with a supporting and positioning mechanism, the inner side of the supporting and positioning mechanism is fixedly provided with an extraction extrusion system, and the center of the top of the supporting and positioning mechanism is provided with a cooling system which is positioned at the top of the extraction extrusion system and extends into the extraction extrusion system;
the side surface of the extraction extrusion system is supported by a supporting table, an impurity adsorption filtration system is arranged in the screening tank, and the input end of the screening tank is connected with the output end of the extraction extrusion system through an automatic extraction mechanism;
one side of the top of the screening tank is provided with a gas pipe, one side of the bottom of the screening tank is provided with an exhaust pipe, and the gas pipe and the exhaust pipe are internally provided with one-way valves;
the dehumidification drying system, the extraction extrusion system, the impurity adsorption filtration system, the automatic transmission mechanism, the cooling system and the automatic extraction mechanism are all electrically connected with the control console.
The most preferred scheme of the invention is that the dehumidifying and drying system comprises a feeding port, a feeding tank, a dehumidifying and drying tank, a supporting part, a stabilizing mechanism, a dryer and a drying pipeline, wherein the feeding port is arranged at the top of the feeding tank, the feeding tank is arranged at the center of the top of the dehumidifying and drying tank through the stabilizing mechanism arranged at the outer side of the feeding tank, the bottom of the dehumidifying and drying tank is arranged at the inner top of a case through the supporting part, the dryer is arranged at the top of the case, the output end of the dryer is connected with the drying pipeline extending to the inside of the dehumidifying and drying tank, the output end of the bottom of the dehumidifying and drying tank is connected with the extracting and extruding system through the automatic conveying mechanism, the supporting part is arranged at a plurality of eccentric positions which are all positioned at the bottom of the dehumidifying and drying tank at equal intervals in a ring shape, and the stabilizing mechanism is arranged at the top of the dehumidifying and drying tank.
The stabilizing mechanism comprises a stabilizing ring and supporting rods, wherein the stabilizing ring is arranged on the outer side of the feeding tank, the bottom of the stabilizing ring is provided with a plurality of supporting rods in an annular equidistant mode, and the supporting rods are arranged at the eccentric position of the top of the dehumidifying and drying tank.
The extraction extrusion system comprises an extrusion unit, a stepping motor, a spiral wing rod and a mounting component, wherein the extrusion unit is arranged on the inner side of a supporting and positioning mechanism, one side of the top of the extrusion unit is provided with a connecting port, the connecting port is connected with the output end of the bottom of a dehumidifying and drying tank through an automatic transmission mechanism, one side of the extrusion unit, which is close to a chassis, is provided with the stepping motor, the output end of the stepping motor is connected with the spiral wing rod which extends to the inside of the extrusion unit, the bottom of the spiral wing rod is rotationally connected with the mounting component, the mounting component is arranged at the bottom of the extrusion unit, the outer side of the mounting component is provided with a sealing bottom cover, the inside of the sealing bottom cover is connected with the input end of a screening tank through an automatic extraction mechanism, the outer side of the extrusion unit is provided with a cooling system which extends to the inside of the extrusion unit, and the inside of the mounting component is provided with a plurality of circulation ports.
The impurity adsorption filtration system comprises a driving motor, a rotating rod, a scattering component and a heavy metal adsorber, wherein the driving motor is arranged on one side of the top of the screening tank, the output end of the driving motor is connected with the rotating rod which extends into the screening tank and is rotationally connected with the screening tank, the scattering component is arranged on the outer side of the rotating rod at equal intervals in an array, the heavy metal adsorber which is arranged on the inner wall of the screening tank and extends into the screening tank is arranged at the bottom of the rotating rod, and a plurality of heavy metal adsorbers are arranged at equal intervals in an annular shape.
The invention is the most preferred scheme, the supporting and positioning mechanism comprises supporting bottom rods, sliding parts, supporting bases, limiting parts, threaded shaft rods and limiting blocks, wherein the supporting bottom rods are arranged on the side face of the case and are provided with two groups, the tops of the two groups of supporting bottom rods are slidably connected with the sliding parts, the tops of the sliding parts are provided with two groups of supporting bases, the tops of one group of supporting bases are rotatably connected with two groups of threaded shaft rods, the outer sides of the tops of the two groups of threaded shaft rods are provided with one group of limiting parts, the limiting parts and the inner sides of the supporting bases are provided with extrusion units, the tops of the limiting parts are provided with limiting blocks positioned on the outer sides of the threaded shaft rods, the tops of the sliding parts are in concave shapes, the supporting bases are in threaded connection with the limiting parts, and the threaded shaft rods are in threaded connection with the limiting blocks.
The automatic transmission mechanism comprises a vacuum pump, a transmission pipeline and a discharge pipeline, wherein the vacuum pump is arranged on the side face of the dehumidifying and drying tank, the input end of the vacuum pump is connected with the transmission pipeline extending to the inner bottom of the dehumidifying and drying tank, and the output end of the vacuum pump is connected with the discharge pipeline extending to the inner side of the connecting port.
The cooling system comprises a connecting frame, a clamp, a circulating pump and a circulating pipe, wherein the connecting frame is arranged at the center of the top of the sliding part, an extrusion unit is arranged on the inner side of the connecting frame, two groups of circulating pumps are fixedly arranged on the top of the connecting frame through the clamp, the output end and the input end of the circulating pump are connected with the circulating pipe penetrating through the extrusion unit, and the circulating pipe is positioned on the side face of the spiral wing rod and is internally provided with condensate.
The automatic extracting mechanism comprises a rotor pump, an extracting pipeline and a feeding pipeline, wherein the rotor pump is arranged on the side face of the screening tank, the input end of the rotor pump is connected with the sealing bottom cover through the extracting pipeline, and the input end of the rotor pump extends to the inner top of the screening tank through the feeding pipeline.
A processing method of a raw material pretreatment assembly line for PETG sheet production comprises the following steps:
s1, conveying PETG raw materials of synthesized PETG sheets stored in a storage tank to a feed tank in a dehumidifying and drying system through a conveying pump, and drying and dehumidifying the PETG raw materials which pass through the feed tank and enter the dehumidifying and drying tank through a dryer, wherein the drying and dehumidifying time is 4-6 hours;
s2, conveying the dried and dehumidified PETG raw material into an extruder unit through a vacuum pump, enabling a spiral wing rod to automatically extrude and plasticize the PETG raw material entering the extruder unit through the operation of a stepping motor, and enabling a circulating pump to drive condensate in a circulating pipe to circularly flow when the PETG raw material is processed, and cooling the extruded PETG raw material;
s3, conveying the PETG raw materials subjected to extrusion cooling to the inside of a screening tank through a rotor pump, scattering the PETG raw materials through rotation of a scattering component driven by a driving motor, and enabling the scattered PETG raw materials to be sufficiently scattered by wind discharged by a gas transmission pipe, wherein a heavy metal adsorber can adsorb heavy metals doped in the PETG raw materials;
s4, after the synthetic PETG raw materials are screened and adsorbed, the obtained synthetic PETG raw materials can be discharged from a discharge port at the bottom of a screening tank, and the pretreatment operation of the synthetic PETG raw materials of the synthetic PETG sheet is completed.
Compared with the prior art, the beneficial effects of this application are:
1. the PETG raw materials of the synthetic PETG sheet can be pretreated, namely, the drying and dehumidification of the synthetic PETG sheet are finished through the internal parts of a dehumidification and drying system, the extrusion plasticizing of the dried and dehumidified PETG raw materials is finished through the internal parts of an extraction and extrusion system, and the heavy metal adsorption after extrusion plasticizing is finished through an impurity adsorption filtering system, so that the quality of the PETG raw materials is better, the quality of the processed and synthesized PETG sheet is guaranteed, meanwhile, the assembly line is automatically carried out, the efficiency and the effect of processing production are improved, and in the actual extrusion plasticizing process, the dried PETG raw materials can be cooled and cooled, and the high temperature of the PETG raw materials caused by rotation is avoided, so that the quality of the dried PETG raw materials is reduced;
2. through the design of the feeding tank, the falling time of the PETG raw material can be prolonged when the PETG raw material is conveyed, so that the PETG raw material is more dispersed in the dehumidifying and drying tank, the gaps between the PETG raw material and the dehumidifying and drying tank are increased, and the PETG raw material is convenient to dry and dehumidify subsequently;
3. the extrusion unit for extrusion plasticization can be installed and positioned through the design of the internal parts of the supporting and positioning mechanism, so that the operation stability of the PETG raw material is ensured when the PETG raw material is extruded and plasticized through the stepping motor, and meanwhile, the installation and fixation mode can facilitate the subsequent disassembly and the maintenance of the extrusion unit and the cleaning of internal residues;
4. through the design of the internal parts of the automatic transmission mechanism, the PETG raw materials after drying and dehumidification are transported in vacuum, the degradation of the PETG raw materials and the generation of bubbles are reduced, and the quality of the PETG raw materials during pretreatment is improved.
Drawings
FIG. 1 is a perspective view of a raw material pretreatment line and treatment method for PETG sheet production of the present application;
FIG. 2 is a front view of a dehumidification drying system and a cabinet connection of a raw material pretreatment assembly line and a treatment method for PETG sheet production of the present application;
FIG. 3 is a front elevation view of a dehumidification drying system and an automatic transfer mechanism of a raw material pretreatment line and a treatment method for PETG sheet production of the present application;
FIG. 4 is a front view of the stabilizing mechanism inside the dehumidification drying system of FIG. 3 of the present application;
FIG. 5 is a perspective view of the connection of the extraction extrusion system, the support positioning mechanism and the cooling system of the raw material pretreatment line and the treatment method for PETG sheet production of the present application;
FIG. 6 is an elevation view of the extraction extrusion system of FIG. 5 of the present application with the sealing bottom cap uninstalled;
FIG. 7 is an elevation view of the support positioning mechanism of FIG. 5 of the present application without the extraction extrusion system in installed position;
FIG. 8 is a front view of the cooling system of FIG. 5 of the present application;
FIG. 9 is a perspective view of an impurity adsorbing and filtering system and screening tank of a raw material pretreatment line and treatment method for PETG sheet production of the present application;
fig. 10 is a schematic diagram of the impurity adsorbing and filtering system in application 9.
The reference numerals in the figures are:
1. a dehumidifying and drying system; 101. a feed inlet; 102. a feed tank; 103. a dehumidifying and drying tank; 104. a support member; 105. a stabilizing mechanism; 1051. a stabilizing ring; 1052. a support rod; 106. a dryer; 107. a drying pipe;
2. extracting the extrusion system; 21. an extrusion unit; 22. a stepping motor; 23. a spiral fin; 24. a mounting member; 25. a connection port; 26. sealing the bottom cover;
3. an impurity adsorption filtration system; 31. a driving motor; 32. a rotating rod; 33. a break-up member; 34. a heavy metal adsorber;
4. a chassis;
5. a supporting and positioning mechanism; 501. a support bottom bar; 502. a sliding member; 503. a support base; 504. a limiting member; 505. a threaded shaft; 506. a limiting block;
6. an automatic transmission mechanism; 601. a vacuum pump; 602. a transmission pipeline; 603. a discharge pipe;
7. a cooling system; 701. a connecting frame; 702. a clamp; 703. a circulation pump; 704. a circulation pipe;
8. an automatic extraction mechanism; 801. a rotor pump; 802. extracting a pipeline; 803. a feed pipe;
9. a support table;
10. a gas pipe;
11. a screening tank;
12. an exhaust pipe;
13. a one-way valve.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 10, a raw material pretreatment line for PETG sheet production comprises a dehumidifying and drying system 1, a drawing and extruding system 2 and an impurity adsorbing and filtering system 3;
the dehumidifying and drying system 1 is arranged at the inner top of the case 4, and the output end of the dehumidifying and drying system 1 is connected with the extraction and extrusion system 2 through an automatic transmission mechanism 6;
the side of the case 4 is provided with a supporting and positioning mechanism 5, the inner side of the supporting and positioning mechanism 5 is fixedly provided with a cooling system 7 which is positioned at the top of the extracting and extruding system 2 and extends into the extracting and extruding system 2, and the center of the top of the supporting and positioning mechanism 5 of the extracting and extruding system 2 is provided with a cooling system;
the side surface of the extraction extrusion system 2 is supported with a screening tank 11 through a supporting table 9, an impurity adsorption filtration system 3 is arranged in the screening tank 11, and the input end of the screening tank 11 is connected with the output end of the extraction extrusion system 2 through an automatic extraction mechanism 8;
one side of the top of the screening tank 11 is provided with a gas pipe 10, one side of the bottom of the screening tank 11 is provided with an exhaust pipe 12, and the gas pipe 10 and the exhaust pipe 12 are internally provided with a one-way valve 13;
the dehumidifying and drying system 1, the drawing and extruding system 2, the impurity adsorbing and filtering system 3, the automatic transmission mechanism 6, the cooling system 7 and the automatic drawing mechanism 8 are all electrically connected with a control console.
When the PETG raw materials of the synthetic PETG sheet are preprocessed, the PETG raw materials stored in the storage tank are firstly transmitted to the inside of the dehumidifying and drying system 1 through the transmission pump and are dried through the dryer 106, the drying and dehumidifying operation of the PETG raw materials is automatically completed, the efficiency and the effect of drying and dehumidifying the PETG raw materials are improved, then the dried and dehumidified PETG raw materials are transmitted to the inside of the extraction and extrusion system 2 through the automatic transmission mechanism 6 to carry out automatic extrusion operation, meanwhile, when the extrusion operation is carried out, the design of the internal parts of the supporting and positioning mechanism 5 can be used for installing and fixing the extrusion unit 21 of the extrusion operation, the stability of the dried and dehumidified PETG raw materials during extrusion operation is ensured, meanwhile, the PETG raw materials can be cooled through the design of the internal parts of the cooling system 7, the quality of the PETG raw materials is prevented from being influenced by heat, the internal parts of the automatic extraction mechanism 8 are transmitted to the inside of the screening tank 11 after the extrusion operation is completed, the internal parts of the automatic extraction mechanism 3 are scattered and heavy metal are adsorbed through the impurity adsorption and filtration system 3, and meanwhile, when the scattering operation is carried out, the wind power operation is carried out, the PETG raw materials are dispersed thoroughly.
Referring to fig. 1 to 4, a dehumidifying and drying system 1 includes a feed inlet 101, a feed tank 102, a dehumidifying and drying tank 103, a supporting member 104, a stabilizing mechanism 105, a dryer 106 and a drying pipe 107, wherein the feed inlet 101 is installed at the top of the feed tank 102, the feed tank 102 is installed at the top center of the dehumidifying and drying tank 103 through the stabilizing mechanism 105 arranged at the outer side thereof, the bottom of the dehumidifying and drying tank 103 is installed at the inner top of a cabinet 4 through the supporting member 104, the dryer 106 is installed at the top of the cabinet 4, the output end of the dryer 106 is connected with the drying pipe 107 extending to the inside of the dehumidifying and drying tank 103, the output end of the bottom of the dehumidifying and drying tank 103 is connected with an extraction extrusion system 2 through an automatic conveying mechanism 6, the supporting member 104 is provided with a plurality of eccentric parts which are all positioned at the bottom of the dehumidifying and drying tank 103, the stabilizing mechanism 105 is installed at the top of the dehumidifying and drying tank 103, the stabilizing mechanism 105 includes a plurality of supporting rods 1051 and 1052 which are installed at the outer side of the feed tank 102, the bottom of the stabilizing ring 1052 is installed at the eccentric parts of the dehumidifying and drying tank 103 in an annular equidistant.
According to the raw material pretreatment assembly line for producing the PETG sheet, through the design of the feed inlet 101, the feed tank 102, the dehumidifying and drying tank 103, the supporting part 104, the stabilizing mechanism 105, the dryer 106 and the drying pipeline 107 in the dehumidifying and drying system 1, PETG raw materials for synthesizing the PETG sheet can be led into the dehumidifying and drying tank 103 through the feed inlet 101 and the feed tank 102, and then the dryer 106 dries the PETG raw materials in the dehumidifying and drying tank 103 through the drying pipeline 107, wherein the feed tank 102 is long in length, so that the PETG raw materials are not adhered in the falling process, and the PETG raw materials in the dehumidifying and drying tank 103 have larger gaps, so that the drying and dehumidifying efficiency and effect are improved when the PETG raw materials are subsequently dried;
the design of the stabilizing ring 1051 and the supporting rod 1052 at the outer side of the feeding tank 102 can install and support the feeding tank 102 with a longer length, so that the stability of the feeding tank is ensured during discharging of PETG raw materials.
Referring to fig. 1, 5 and 6, the extraction extrusion system 2 includes an extrusion unit 21, a stepping motor 22, a spiral wing rod 23 and a mounting component 24, the extrusion unit 21 is mounted on the inner side of the supporting and positioning mechanism 5, a connection port 25 is arranged on one side of the top of the extrusion unit 21, the connection port 25 is connected with the output end of the bottom of the dehumidification drying tank 103 through an automatic transmission mechanism 6, the stepping motor 22 is mounted on one side, close to the case 4, of the extrusion unit 21, the output end of the stepping motor 22 is connected with the spiral wing rod 23 extending to the inside of the extrusion unit 21, the bottom of the spiral wing rod 23 is rotationally connected with the mounting component 24, the mounting component 24 is mounted on the bottom of the extrusion unit 21, a sealing bottom cover 26 is arranged on the outer side of the mounting component 24, the inside of the sealing bottom cover 26 is connected with the input end of the sieving tank 11 through an automatic extraction mechanism 8, a cooling system 7 extending to the inside of the extrusion unit 21 is arranged on the outer side of the extrusion unit 21, and a plurality of circulation ports are formed in the inside the mounting component 24.
According to the raw material pretreatment assembly line for PETG sheet production, through the design of the extrusion unit 21, the stepping motor 22, the spiral wing rod 23 and the mounting part 24 in the extraction extrusion system 2, the PETG raw material after drying and dehumidification is automatically extruded, transportation and movement of the PETG raw material are completed, meanwhile, the PETG raw material is further mixed and plasticized through rotation of the spiral wing rod 23, and the quality of the extruded PETG raw material is ensured to be more compact and uniform.
Referring to fig. 1, fig. 5, fig. 9 and fig. 10, the impurity adsorption filtration system 3 includes driving motor 31, rotary rod 32, break up part 33 and heavy metal adsorber 34, driving motor 31 installs in one side at screening jar 11 top, driving motor 31's output is connected with the rotary rod 32 that extends to screening jar 11 inside and rotate to be connected with it, the outside of rotary rod 32 is the array equidistance and installs and break up part 33, the bottom of rotary rod 32 is provided with installs at screening jar 11 inner wall and extends to its inside heavy metal adsorber 34, heavy metal adsorber 34 is the annular equidistance and installs a plurality ofly.
According to the raw material pretreatment assembly line for producing the PETG sheet, through the design of the driving motor 31, the rotating rod 32, the scattering component 33 and the heavy metal absorber 34 in the impurity adsorption filtration system 3, the extruded and plasticized PETG raw material can be scattered, so that the subsequent heavy metal absorber 34 is convenient for absorbing heavy metals in the PETG raw material, meanwhile, the heavy metal absorber 34 for heavy metals can be detached, the absorbed heavy metals can be conveniently recycled, and when the PETG raw material is scattered, the gas pipe 10 can convey gas into the screening tank 11, so that the scattered PETG raw material is more scattered, and the subsequent heavy metal absorption effect is improved.
Referring to fig. 1, 5 and 7, the supporting and positioning mechanism 5 includes a supporting bottom rod 501, a sliding component 502, a supporting base 503, a limiting component 504, threaded shafts 505 and limiting blocks 506, the supporting bottom rod 501 is installed on the side surface of the chassis 4 and is provided with two groups, the tops of the two groups of supporting bottom rods 501 are slidably connected with the sliding component 502, the tops of the sliding component 502 are provided with two groups of supporting bases 503, the tops of one group of supporting bases 503 are rotatably connected with two groups of threaded shafts 505, the outer sides of the tops of the two groups of threaded shafts 505 are provided with one group of limiting components 504, the limiting components 504 and the inner sides of the supporting bases 503 are installed and positioned with extrusion units 21, the tops of the limiting components 504 are provided with limiting blocks 506 located on the outer sides of the threaded shafts 505, the tops of the sliding component 502 are in a concave shape, the supporting bases 503 are in threaded connection with the limiting components 504, and the threaded shafts 505 are in threaded connection with the limiting blocks 506.
According to the raw material pretreatment assembly line for PETG sheet production, through the design of the supporting and positioning mechanism 5, the bottom rod 501, the sliding part 502, the supporting base 503, the limiting part 504, the threaded shaft rod 505 and the limiting block 506, the extruder set 21 on the inner sides of the supporting base 503 and the limiting part 504 can be firmly installed and fixed, the stability of the PETG raw material during extrusion plasticizing is ensured, the phenomenon that the normal extrusion operation is affected due to vibration generated when the stepping motor 22 drives the spiral wing rod 23 to rotate is avoided, and meanwhile, the installation and fixation mode can be disassembled, so that the residues in the extruder set 21 can be cleaned conveniently.
In this embodiment, when the extruder set 21 is disassembled, the limiting block 506 is manually rotated to move out from the outer side of the threaded shaft 505, and then the threaded shaft 505 is manually rotated to make the limiting member 504 in threaded connection with the outer side of the threaded shaft 505 move in a telescopic manner, so as to complete the disassembly of the limiting member 504, and further the extruder set 21 can be disassembled and subsequently maintained.
Referring to fig. 1 to 3, the automatic transfer mechanism 6 includes a vacuum pump 601, a transfer pipe 602 and a discharge pipe 603, the vacuum pump 601 is installed at a side of the desiccant canister 103, an input end of the vacuum pump 601 is connected with the transfer pipe 602 extending to an inner bottom of the desiccant canister 103, and an output end of the vacuum pump 601 is connected with the discharge pipe 603 extending to an inner side of the connection port 25.
According to the raw material pretreatment assembly line for producing the PETG sheet, the dry and dehumidified PETG raw material can be conveyed into the extruder set 21 through the design of the vacuum pump 601, the conveying pipeline 602 and the discharging pipeline 603 in the automatic conveying mechanism 6, and meanwhile, the conveying can be carried out in a vacuum environment, so that the degradation of the PETG raw material and the generation of bubbles are reduced.
Referring to fig. 1, 5 and 8, the cooling system 7 includes a connection frame 701, a clamp 702, a circulation pump 703 and a circulation pipe 704, the connection frame 701 is installed at the center of the top of the sliding member 502, the extrusion unit 21 is provided at the inner side of the connection frame 701, two sets of circulation pumps 703 are installed and fixed at the top of the connection frame 701 through the clamp 702, the output end and the input end of the circulation pump 703 are connected with the circulation pipe 704 penetrating the extrusion unit 21, and the circulation pipe 704 is located at the side of the spiral fin 23 and is internally provided with condensate.
According to the raw material pretreatment assembly line for producing the PETG sheet, through the design of the connecting frame 701, the clamp 702, the circulating pump 703 and the circulating pipe 704 in the cooling system 7, the PETG raw material in the extrusion plasticizing process can be automatically cooled, the phenomenon that the quality of the PETG raw material is influenced due to high temperature caused by the fact that the dry PETG raw material generates high temperature in the extrusion process is avoided, and the quality of the PETG sheet after the follow-up processing is improved.
Referring to fig. 1, 5 and 9, the automatic extraction mechanism 8 includes a rotor pump 801, an extraction pipe 802 and a feed pipe 803, the rotor pump 801 is installed at a side of the screening tank 11, an input end of the rotor pump 801 is connected to the sealing bottom cover 26 through the extraction pipe 802, and an input end of the rotor pump 801 extends to an inner top of the screening tank 11 through the feed pipe 803.
According to the raw material pretreatment assembly line for producing the PETG sheet, through the design of the rotor pump 801, the extraction pipeline 802 and the feeding pipeline 803 in the automatic extraction mechanism 8, the PETG raw material after extrusion plasticizing is transmitted into the screening tank 11, so that subsequent automatic adsorption of heavy metal residues in the PETG raw material is facilitated, and the quality of the PETG sheet after subsequent processing is improved.
Referring to fig. 1 to 10, a processing method of a raw material pretreatment line for PETG sheet production includes the steps of:
s1, conveying PETG raw materials of synthesized PETG sheets stored in a storage tank into a feed tank 102 in a dehumidifying and drying system 1 through a conveying pump, and drying and dehumidifying the PETG raw materials which pass through the feed tank 102 and enter the dehumidifying and drying tank 103 through a dryer 106, wherein the drying and dehumidifying time is 4-6 hours;
s2, conveying the dried and dehumidified PETG raw material into the extruder set 21 through a vacuum pump 601, enabling a spiral fin rod 23 to automatically extrude and plasticize the PETG raw material entering the extruder set 21 through the operation of a stepping motor 22, and enabling a circulating pump 703 to drive condensate in a circulating pipe 704 to circularly flow during the operation of the PETG raw material to cool the extruded PETG raw material;
s3, conveying the PETG raw materials subjected to extrusion cooling into the screening tank 11 through a rotor pump 801, driving a scattering component 33 to rotate through a driving motor 31 to scatter the PETG raw materials, and enabling the scattered PETG raw materials to be sufficiently scattered by wind discharged through a gas pipe 10, wherein a heavy metal absorber 34 can absorb heavy metals doped in the PETG raw materials;
s4, after the synthetic PETG raw materials are screened and adsorbed, the obtained synthetic PETG raw materials can be discharged from a discharge port at the bottom of the screening tank 11, and the pretreatment operation of the synthetic PETG raw materials of the synthetic PETG sheet is completed.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. The raw material pretreatment assembly line for PETG sheet production comprises a dehumidifying and drying system (1), an extraction and extrusion system (2) and an impurity adsorption and filtration system (3);
the device is characterized in that the dehumidifying and drying system (1) is arranged at the inner top of the case (4), and the output end of the dehumidifying and drying system (1) is connected with the extraction and extrusion system (2) through an automatic transmission mechanism (6);
the side of the case (4) is provided with a supporting and positioning mechanism (5), an extraction extrusion system (2) is fixedly arranged on the inner side of the supporting and positioning mechanism (5), and a cooling system (7) which is positioned at the top of the extraction extrusion system (2) and extends into the extraction extrusion system is arranged at the center of the top of the supporting and positioning mechanism (5);
the side of the extraction extrusion system (2) is supported with a screening tank (11) through a supporting table (9), an impurity adsorption and filtration system (3) is arranged in the screening tank (11), and the input end of the screening tank (11) is connected with the output end of the extraction extrusion system (2) through an automatic extraction mechanism (8);
an air delivery pipe (10) is arranged on one side of the top of the screening tank (11), an exhaust pipe (12) is arranged on one side of the bottom of the screening tank (11), and one-way valves (13) are arranged in the air delivery pipe (10) and the exhaust pipe (12);
the dehumidifying and drying system (1), the extracting and extruding system (2), the impurity adsorption and filtration system (3), the automatic transmission mechanism (6), the cooling system (7) and the automatic extracting mechanism (8) are electrically connected with the control console;
the dehumidification drying system (1) comprises a feeding port (101), a feeding tank (102), a dehumidification drying tank (103), a supporting component (104), a stabilizing mechanism (105), a dryer (106) and a drying pipeline (107), wherein the feeding port (101) is arranged at the top of the feeding tank (102), the feeding tank (102) is arranged at the center of the top of the dehumidification drying tank (103) through the stabilizing mechanism (105) arranged on the outer side of the feeding tank, the bottom of the dehumidification drying tank (103) is arranged at the inner top of a case (4) through the supporting component (104), the dryer (106) is arranged at the top of the case (4), the output end of the dryer (106) is connected with the drying pipeline (107) extending to the inside of the dehumidification drying tank (103), the output end at the bottom of the dehumidification drying tank (103) is connected with the extraction extrusion system (2) through an automatic transmission mechanism (6), the supporting component (104) is arranged at a plurality of eccentric positions which are positioned at the bottom of the dehumidification drying tank (103) at equal intervals in a ring shape, and the stabilizing mechanism (105) is arranged at the top of the dehumidification drying tank (103);
the extraction extrusion system (2) comprises an extrusion unit (21), a stepping motor (22), a spiral wing rod (23) and a mounting component (24), wherein the extrusion unit (21) is mounted on the inner side of a supporting and positioning mechanism (5), one side of the top of the extrusion unit (21) is provided with a connecting port (25), the connecting port (25) is connected with the output end of the bottom of a dehumidifying and drying tank (103) through an automatic transmission mechanism (6), the stepping motor (22) is mounted on one side, close to a machine case (4), of the extrusion unit (21), the output end of the stepping motor (22) is connected with the spiral wing rod (23) extending into the extrusion unit (21), the bottom of the spiral wing rod (23) is rotatably connected with the mounting component (24), the mounting component (24) is mounted on the bottom of the extrusion unit (21), the outer side of the mounting component (24) is provided with a sealing bottom cover (26), the inner side of the sealing bottom cover (26) is connected with the input end of the bottom cover (11) through an automatic extraction mechanism (8), the outer side of the extrusion unit (21) is provided with a cooling system (7) extending into the inner part of the extrusion unit, and the inner part (24) is provided with a plurality of circulation ports;
the impurity adsorption filtration system (3) comprises a driving motor (31), a rotating rod (32), a scattering component (33) and a heavy metal adsorber (34), wherein the driving motor (31) is arranged on one side of the top of the screening tank (11), the output end of the driving motor (31) is connected with the rotating rod (32) which extends to the inside of the screening tank (11) and is rotationally connected with the screening tank, the scattering component (33) is arranged on the outer side of the rotating rod (32) in an array equidistant manner, the bottom of the rotating rod (32) is provided with the heavy metal adsorber (34) which is arranged on the inner wall of the screening tank (11) and extends to the inside of the same, and a plurality of heavy metal adsorbers (34) are arranged in an annular equidistant manner.
The support positioning mechanism (5) comprises a support bottom rod (501), sliding parts (502), support bases (503), limiting parts (504), threaded shaft rods (505) and limiting blocks (506), wherein the support bottom rod (501) is installed on the side face of a chassis (4) and is provided with two groups, the tops of the two groups of support bottom rods (501) are in sliding connection with the sliding parts (502), the tops of the sliding parts (502) are provided with two groups of support bases (503), the tops of one group of support bases (503) are rotationally connected with two groups of threaded shaft rods (505), the outer sides of the tops of the two groups of threaded shaft rods (505) are provided with one group of limiting parts (504), extrusion units (21) are installed and positioned on the inner sides of the limiting parts (504) and the support bases (503), the tops of the limiting parts (504) are provided with limiting blocks (506) located on the outer sides of the threaded shaft rods (505), the tops of the sliding parts (502) are in a concave shape, the tops of the support bases (503) and the limiting parts (504) are in threaded connection, and the threaded shaft rods (505) are in threaded connection with the limiting blocks (506).
The cooling system (7) comprises a connecting frame (701), a clamp (702), circulating pumps (703) and a circulating pipe (704), wherein the connecting frame (701) is installed at the center of the top of the sliding part (502), an extrusion unit (21) is arranged on the inner side of the connecting frame (701), two groups of circulating pumps (703) are fixedly installed on the top of the connecting frame (701) through the clamp (702), the output end and the input end of the circulating pump (703) are connected with the circulating pipe (704) penetrating through the extrusion unit (21), and the circulating pipe (704) is located on the side face of the spiral wing rod (23) and is internally provided with condensate;
2. the raw material pretreatment assembly line for PETG sheet production according to claim 1, wherein the stabilizing mechanism (105) comprises a stabilizing ring (1051) and supporting rods (1052), the stabilizing ring (1051) is installed on the outer side of the feeding tank (102), the bottom of the stabilizing ring (1051) is provided with a plurality of supporting rods (1052) in an annular equidistant manner, and the supporting rods (1052) are installed at the eccentric position of the top of the dehumidifying and drying tank (103).
3. Raw material pretreatment assembly line for PETG sheet production according to claim 1, characterized in that the automatic transmission mechanism (6) comprises a vacuum pump (601), a transmission pipeline (602) and a discharge pipeline (603), the vacuum pump (601) is installed on the side surface of the dehumidifying and drying tank (103), the input end of the vacuum pump (601) is connected with a transmission pipeline (602) extending to the inner bottom of the dehumidifying and drying tank (103), and the output end of the vacuum pump (601) is connected with a discharge pipeline (603) extending to the inner side of the connecting port (25).
4. Raw material pretreatment line for PETG sheet production according to claim 1, characterized in that the automatic extraction mechanism (8) comprises a rotor pump (801), an extraction pipe (802) and a feeding pipe (803), the rotor pump (801) is installed at the side of the screening tank (11), the input end of the rotor pump (801) is connected with the sealing bottom cover (26) through the extraction pipe (802), and the input end of the rotor pump (801) extends to the inner top of the screening tank (11) through the feeding pipe (803).
5. A processing method of a raw material pretreatment line for PETG sheet production, applied to a raw material pretreatment line for PETG sheet production as claimed in any one of claims 1 to 4, characterized by comprising the steps of:
s1, conveying PETG raw materials of synthesized PETG sheets stored in a storage tank into a feed tank (102) in a dehumidifying and drying system (1) through a conveying pump, and drying and dehumidifying the PETG raw materials which pass through the feed tank (102) and enter the dehumidifying and drying tank (103) through a dryer (106), wherein the drying and dehumidifying time is 4-6 hours;
s2, conveying the dried and dehumidified PETG raw material into an extruder unit (21) through a vacuum pump (601), enabling a spiral fin rod (23) to automatically extrude and plasticize the PETG raw material entering the inside of the extruder unit (21) through the operation of a stepping motor (22), and enabling a circulating pump (703) to drive condensate in a circulating pipe (704) to circularly flow when the PETG raw material is operated, so as to cool the extruded PETG raw material;
s3, conveying the PETG raw materials subjected to extrusion cooling into a screening tank (11) through a rotor pump (801), driving a scattering component (33) to rotate through a driving motor (31) so as to scatter the PETG raw materials, and enabling the scattered PETG raw materials to be sufficiently scattered by wind discharged through a gas pipe (10), wherein a heavy metal absorber (34) can absorb heavy metals doped in the PETG raw materials;
s4, after the synthetic PETG raw materials are screened and adsorbed, the obtained synthetic PETG raw materials can be discharged from a discharge port at the bottom of a screening tank (11), and the pretreatment operation of the synthetic PETG raw materials of the synthetic PETG sheet is completed.
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