CN116353011B - Biodegradable foam material preparation equipment and application method thereof - Google Patents
Biodegradable foam material preparation equipment and application method thereof Download PDFInfo
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- CN116353011B CN116353011B CN202310365285.8A CN202310365285A CN116353011B CN 116353011 B CN116353011 B CN 116353011B CN 202310365285 A CN202310365285 A CN 202310365285A CN 116353011 B CN116353011 B CN 116353011B
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- 239000006261 foam material Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 14
- 238000001125 extrusion Methods 0.000 claims abstract description 191
- 239000000463 material Substances 0.000 claims abstract description 91
- 238000005187 foaming Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 76
- 238000011282 treatment Methods 0.000 claims description 41
- 238000012545 processing Methods 0.000 claims description 33
- 238000011221 initial treatment Methods 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000003723 Smelting Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 11
- 230000032683 aging Effects 0.000 abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000012768 molten material Substances 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means 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
- B29C48/455—Screws arranged to convey material towards each other, e.g. separate screws arranged after each other and feeding in opposite directions
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/501—Extruder feed section
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
-
- 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
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
The invention discloses a preparation device of a biodegradable foam material, which comprises: the supporting element, set up the one-level extrusion unit at supporting element top still includes: the secondary extrusion unit is arranged on the side part of the primary extrusion unit and comprises a secondary driving source and a secondary extrusion cylinder. Through the design of the height and the tooth distance of the thread teeth wound outside the thrust section, the non-return section and the extrusion section, the thrust of materials from the thrust section to the non-return section and the extrusion section is gradually reduced, the shape design of the wide charging barrel, the connecting charging barrel and the narrow charging barrel is combined, the backflow aging of pushed materials is further prevented, the additional pushing design of the pushing piece can reduce the extrusion backflow of the materials from the thrust section to the non-return section, so that the backflow aging of the materials is further reduced, and the materials flowing into the extrusion cavity are gradually guided by the thrust section, the non-return section and the extrusion section, so that the materials are transported to the inside of the die head to realize extrusion foaming.
Description
Technical Field
The invention relates to the technical field of preparation of biodegradable foam materials, in particular to preparation equipment of biodegradable foam materials and a using method thereof.
Background
The biodegradable material is a polymer material which can be chemically, biologically or physically degraded or enzymatically decomposed under the action of microorganisms existing in nature such as bacteria, fungi, algae and the like, the most ideal degradable biological material is obtained by utilizing renewable resources, the degraded material can be reused by organisms, and the products are preferably carbon dioxide and water, so that the production and the use of the material are brought into the circulation in nature, and the common preparation equipment of the biodegradable material is extrusion foaming equipment;
chinese patent CN201711485794.5 discloses a single screw extrusion foaming device, which comprises a machine barrel, a heater arranged on the machine barrel, a hopper and an air inlet arranged on the machine barrel, wherein the machine barrel is composed of an upper machine barrel and a lower machine barrel, the inner cavities of the upper machine barrel and the lower machine barrel are mutually communicated, an upper screw and a lower screw are respectively arranged in the upper machine barrel and the lower machine barrel, the front end of the upper screw is hollow to form an air cavity chamber, the air cavity chamber is communicated with the air inlet, a plurality of through holes penetrating through the side wall are arranged on the side wall of the air cavity chamber, an air outlet nozzle is arranged on each through hole, and a powder metallurgy gasket with a plurality of micro-air holes is uniformly distributed on the surface of each air outlet nozzle, and the invention has the advantages that: the microcellular foaming technology is adopted, so that the produced plastic product has the advantages of reducing the product quality, having good impact performance, having good sound insulation performance and the like.
The prior patents and the prior art have the following defects:
1. in the extrusion equipment connected in series, gas is required to be added between the cylinder and the extrusion screw, the screw tooth distance of the extrusion screw of the existing extrusion equipment is the same, the extrusion mixing mode of materials mixed with the gas is single, and the extrusion equipment connected in series is easy to cause the aggregation of the materials in the air inlet section of the screw to influence air inlet;
2. when extrusion equipment rotates the operation, the material on extrusion screw rod surface can appear extruding the phenomenon of backward flow under the effect of extrusion force, and then lead to extrusion screw rod extrusion backward flow's material under extruding the backward flow repeatedly, heated repeatedly by the high temperature, easily cause the backward flow material to be aged by the high temperature to lead to the quality decline of foaming product.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the above-mentioned problems with the existing biodegradable foam material preparation apparatus.
Accordingly, the present invention aims to provide a biodegradable foam material preparation apparatus.
In order to solve the technical problems, the invention provides the following technical scheme: a biodegradable foam material preparation apparatus comprising: the supporting element, set up the one-level extrusion unit at supporting element top still includes: the secondary extrusion unit is arranged at the side part of the primary extrusion unit and comprises a secondary driving source and a secondary extrusion cylinder, and the supporting unit is movably connected with the secondary extrusion cylinder through the secondary driving source;
the secondary extrusion cylinder comprises a wide material cylinder, a connecting material cylinder and a narrow material cylinder, wherein the wide material cylinder, the connecting material cylinder and the narrow material cylinder are sequentially distributed at the top of the supporting unit and integrally formed;
the wide feed cylinder is including setting up at its inside one-level processing chamber and secondary treatment chamber, the lateral part in one-level processing chamber and secondary treatment chamber all is equipped with extrudes the chamber, one-level processing chamber and secondary treatment chamber are respectively through the inside propelling movement material of pushing piece to extruding the inside in chamber in turn in its inside, the pushing piece is through movable rod and removal wheel swing joint, the bottom rotation of removal wheel is provided with the trigger piece.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the output shaft of the secondary driving source is rotationally connected with the rotating shaft, the rotating shaft is rotationally arranged in the wide charging barrel, the connecting charging barrel and the narrow charging barrel, and the connecting charging barrel is in conductive connection with the die head through the narrow charging barrel;
the upper and lower sides of the primary treatment cavity and the secondary treatment cavity are respectively provided with a partition plate, sealing frames are respectively arranged among the primary treatment cavity, the secondary treatment cavity and the extrusion cavity, the extrusion cavity is arranged in the wide charging barrel, the connecting charging barrel and the narrow charging barrel, the extrusion cavity is provided with a heat transfer cavity between the extrusion cavity and the wide charging barrel, the connection charging barrel and the narrow charging barrel, the partition plate is arranged in the middle of the sealing frame, the inside of the sealing frame is provided with a one-way cavity, the inside of the sealing frame is provided with a rotating shaft in a rotating way, and a dynamic sealing gasket is arranged between the rotating shaft and the sealing frame.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the surface of the sealing frame is fixedly connected with the inner wall of the wide charging barrel through a ring side plate, the sealing frame is fixedly connected with the partition plate through a one-way block, and the one-way block is fixedly arranged at the bottom of the sealing frame;
The inside activity in one-way chamber is provided with the closing plate, and the inside profile in one-way chamber and the external profile phase-match of closing plate, the closing plate runs through one-way piece and resistive plate swing joint through the upward pole of its bottom, the resistive plate passes through the built-in chamber elastic connection of elastic component and one-way piece inside, upward be provided with the movable sealing washer between pole and the one-way piece.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the rotating shaft comprises a thrust section, a non-return section and an extrusion section, and the thrust section, the non-return section and the extrusion section of the rotating shaft are all arranged in the extrusion cavity;
the outside of thrust section, non return section and extrusion section all twines and is equipped with the screw thread.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the thread tooth distance of the thread tooth wound outside the thrust section is larger than the thread tooth distance of the thread tooth wound outside the non-return section and the extrusion section, the thread tooth distance of the thread tooth of the non-return section is the same as that of the extrusion section, and the distances between the thrust section, the non-return section and the extrusion cavity inner wall are sequentially reduced;
the heights of the thread teeth wound outside the thrust section, the non-return section and the extrusion section are sequentially reduced.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the pushing piece comprises an extension rod and a pushing ring plate, a rotating shaft is rotatably arranged on the inner side of the pushing piece, the pushing piece is fixedly connected with the pushing ring plate through the extension rod, and a movable rod is arranged at the bottom of the pushing piece;
the inside of impeller is provided with settles the chamber, the inside of settling the chamber sets up a plurality of processing cylinder spare, the impeller left and right sides all is provided with single scraper blade.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the number of the separation plates is two, the two separation plates are fixedly arranged between the sealing frame and the bottom plate, the inner side of the separation plate is rotatably provided with a rotating shaft, and the movable rod movably penetrates through the bottom plate and is connected with the movable wheel;
the trigger block comprises a sealing section, a pushing section and a lifting section, wherein the sealing section, the lifting section and the pushing section are integrally formed, the height of the pushing section is larger than that of the sealing section, the lifting section is arranged between the sealing section and the pushing section, two vertical plates are arranged at the top of the trigger block, the movable rod and the movable wheel are movably arranged between the two vertical plates, and the trigger block is fixedly connected to the surface of the rotating shaft.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the processing cylinder comprises an inner shrinkage cavity and an outer expansion cavity, the inner shrinkage cavity and the outer expansion cavity are communicated and distributed in the processing cylinder, the outer expansion cavity is on the same side as a push ring plate on the side part of a pushing piece, the inner diameter of the outer expansion cavity is larger than that of the inner shrinkage cavity, a mounting plate is transversely arranged in the outer expansion cavity, a rotating shaft is rotatably arranged in the middle of the mounting plate, the rotating shaft is rotatably arranged in the outer expansion cavity and the inner shrinkage cavity, an outer solid sleeve is arranged at the bottom of the mounting plate, the mounting plate is movably connected with a moving cylinder through an elastic piece in the outer solid sleeve, and a matching disc is arranged at the bottom of the moving cylinder;
the top fixedly connected with of interior chamber contracts a plurality of whirl piece, whirl piece evenly distributed along the circumferencial direction in interior chamber contracts, interior chamber contracts through whirl piece and circle cover fixed connection, the inside rotation of circle cover is provided with the rotation axis, the bottom of circle cover is provided with the cylinder piece, the fixed surface that sets up at the rotation axis of cylinder piece, the surface evenly distributed of cylinder piece has the roll strip, and is adjacent the inside of roll strip is provided with the overflow launder, trigger swivel vane is installed to the bottom of cylinder piece, trigger swivel vane fixed mounting has the surface of rotation axis.
As a preferable scheme of the biodegradable foam material preparation device, the invention comprises the following steps:
the support unit comprises a primary support frame and a secondary support frame, the primary support frame is fixedly arranged at the bottom of the primary extrusion unit, the secondary support frame is fixedly arranged at the bottom of the secondary extrusion unit, and the height of the primary support frame is higher than that of the secondary support frame;
the primary extrusion unit comprises a primary extrusion cylinder, the primary extrusion cylinder is fixedly arranged at the top of a primary support frame, a primary driving source is arranged at one side of the primary extrusion cylinder, the bottom of the other side of the primary extrusion cylinder is fixedly arranged at the top of a wide charging cylinder, a heating cavity and an output cavity are sequentially arranged in the primary extrusion cylinder from outside to inside, the heating cavity is in conductive connection with a smelting unit, an output shaft of the primary driving source is in synchronous connection with the extrusion screw, the top of the primary extrusion cylinder is in conductive connection with a blanking hopper, a blanking port at the bottom of the output cavity is arranged at the top of the wide charging cylinder, the blanking port is in conductive connection with an input port at the top of the wide charging cylinder through a connecting pipe, and a partition plate is arranged in the middle of the input port;
the secondary extrusion unit further comprises an air adding unit and a heating unit, the air adding unit is respectively connected with the inner parts of the primary treatment cavity and the secondary treatment cavity in a conducting mode through an air adding pipe, and the heat transfer cavity is connected with the heating unit in a conducting mode.
Another object of the present invention is to provide a method for using a biodegradable foam material preparation apparatus, which comprises the following steps:
step one, blanking: the materials are added into the first-stage extrusion cylinder through a discharging hopper;
step two, primary extrusion: the primary driving source is started to drive the extrusion screw to rotate, so that the extrusion screw is matched with the heating cavity to heat, and primary heating extrusion of materials is completed;
step three, pushing for the second time: the extruded materials are heated primarily and enter the input port through the blanking port and the connecting pipe, so that the secondary driving source drives the rotating shaft to rotate, and secondary extrusion pushing of the materials is realized;
step four, reciprocating and uniformly: the pushing piece is driven to alternately reciprocate in the primary treatment cavity and the secondary treatment cavity at the bottom of the input port by the cooperation of the rotating shaft and the trigger block;
fifth, unidirectional backflow prevention: the sealing frames arranged at the side parts of the primary treatment cavity and the secondary treatment cavity are in movable fit with the sealing plates, so that when the pushing piece pushes, the sealing plates move out of the sealing frames to be conducted, and when the pushing piece pushes to return, the sealing plates return to the sealing frames to be closed unidirectionally;
Step six, extruding and demolding: the material inside the thrust section, the non-return section and the extrusion section passes through the die head to extrude and foam under the rotation drive of the rotating shaft and the thread teeth.
The invention has the beneficial effects that:
1. through the design of the heights and the pitches of the thread teeth wound outside the thrust section, the non-return section and the extrusion section, the thrust of the materials from the thrust section to the non-return section and the extrusion section is gradually reduced, and the shape design of the wide charging barrel, the connecting charging barrel and the narrow charging barrel is combined to further prevent the backflow aging of the pushed materials, and the additional pushing design of the pushing piece can reduce the extrusion backflow generated by the materials from the thrust section to the non-return section, so that the backflow aging of the materials is further reduced, and the materials flowing into the extrusion cavity are transported to the inside of the die head to realize extrusion foaming under the gradual guidance of the thrust section, the non-return section and the extrusion section;
2. the molten state materials input into the secondary treatment cavity through the pushing ring plate at the top of the pushing piece and the single scraping plate at the side part are pushed to enter the extrusion cavity, and when the pushing piece pushes the materials to move from the bottom plate to the inside of the sealing frame, the materials pushed and extruded by the pushing piece push the sealing plate to lift from the inside of the sealing frame, so that the unidirectional sealing of the secondary treatment cavity is relieved, the molten state materials in the secondary treatment cavity are pushed into the extrusion cavity, and the inside of the extrusion cavity is subjected to the pushing force generated by the distinction and the rotary extrusion of the thread teeth;
3. The distances from the thrust section, the non-return section and the extrusion section to the inner wall of the extrusion cavity are sequentially reduced, and the distances are matched with the heights of the thread teeth wound outside the thrust section, the non-return section and the extrusion section, so that the heights of the thread teeth of the thrust section, the non-return section and the extrusion section are consistent with the heights of the thread teeth of the extrusion section to the inner wall of the extrusion cavity, the uniformity of rotating extrusion of materials by equipment is maintained, the mixing of different forces can be realized by different tooth pitch designs, and the mixing extrusion effect is improved;
4. the molten state materials input by the input port between the bottom of the pushing piece and the bottom plate are extruded by the pushing piece, the materials at the moment are covered on the top of the carbon dioxide input by the gas adding pipe in the falling process to finish covering and mixing, the extruded materials flow into the interior of the internal shrinkage cavity under the action of pressure, and the materials flowing into the interior of the internal shrinkage cavity push the matching disc to lift upwards under the action of pressure, so that the unidirectional constraint of the matching disc and the external expansion cavity is relieved, the materials of the pushing piece and the bottom plate are transferred between the pushing piece and the sealing frame, and the subsequent lifting of the pushing piece is facilitated;
5. the material through flowing can extrude and drive the rotary vane and rotate, make the rotary vane of triggering drive rotation axis and cylinder piece and rotate, and in order to improve the rotation effect of cylinder piece, can make the cylinder piece be hollow structure, reduce the cylinder piece along with interior shrink cavity pivoted degree of difficulty, and the material that flows can flow through rolling strip and the overflow launder in the rotatory cylinder piece outside through the extrusion, and then when making the material that mixes carbon dioxide pass rolling strip and overflow launder, by preliminary refining mixing, and the whirl piece that sets up at the cylinder piece can refine the preliminary mixed material of reposition of redundant personnel, be convenient for improve the refining mixing effect of mixed material.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic illustration of the connection of a primary extruder barrel and a wide barrel of the present invention;
FIG. 3 is a schematic view of the connection of the wide cartridge structure of the present invention;
FIG. 4 is an enlarged schematic view of the portion A in FIG. 3;
FIG. 5 is a schematic view showing the connection of the internal structure of the extrusion chamber according to the present invention;
FIG. 6 is a schematic diagram of a unidirectional block structure connection according to the present invention;
FIG. 7 is a schematic view of the structural connection of the sealing plate of the present invention;
FIG. 8 is a schematic diagram showing the internal structure connection of the unidirectional blocks according to the present invention;
FIG. 9 is a schematic diagram of the internal structural connections of the primary and secondary treatment chambers of the present invention;
FIG. 10 is a schematic view of a pusher structure connection of the present invention;
FIG. 11 is a schematic view of a process cartridge structural connection of the present invention;
FIG. 12 is an enlarged schematic view of the portion B of FIG. 11;
FIG. 13 is a schematic diagram showing the internal structure connection of the trigger block of the present invention;
FIG. 14 is a flow chart of the method of the present invention.
In the figure:
1. a supporting unit; 101. a primary support frame; 102. a second stage support frame;
2. a primary extrusion unit; 201. a primary extrusion barrel; 2011. a heating chamber; 2012. an output chamber; 20121. a blanking port; 2013. extruding a screw; 2014. a connecting pipe; 202. discharging a hopper; 203. a primary drive source; 204. a smelting unit;
3. a secondary extrusion unit; 301. a secondary drive source; 3011. a rotating shaft; 3012. a thrust section; 3013. a non-return section; 3014. an extrusion section; 3015. a thread tooth; 302. a secondary extrusion barrel; 3021. a wide feed cylinder; 30211. an input port; 30212. a partition plate; 30213. a primary treatment chamber; 30214. a secondary treatment chamber; 30215. an extrusion chamber; 30216. a heat transfer chamber; 30217. a bottom plate; 3022. connecting a charging barrel; 3023. a narrow barrel; 3024. a die head; 303. a gas filling unit; 3031. a gas adding pipe; 304. a heating unit; 305. a sealing frame; 3051. a unidirectional block; 30511. a rod is moved upwards; 30512. a resistance plate; 30513. a built-in cavity; 30514. an elastic member; 3052. a ring side plate; 3053. a sealing plate; 3054. a unidirectional cavity; 306. a pushing member; 3061. an extension rod; 3062. a push ring plate; 3063. a movable rod; 30631. a moving wheel; 3064. a placement cavity; 3065. a single scraper; 307. a treatment cartridge; 3071. an inner shrinking cavity; 3072. an outer expanding cavity; 30721. a mounting plate; 30722. an outer solid sleeve; 30723. moving into the cylinder; 30724. a matching disc; 3073. a rotation shaft; 3074. triggering the rotary blade; 3075. a cylindrical block; 30751. a rolling bar; 30752. an overflow trough; 3076. a swirl block; 30761. a round sleeve; 308. a trigger block; 3081. a sealing section; 3082. a pushing section; 3083. a lifting section; 3084. and a vertical plate.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
While the embodiments of the present invention have been illustrated and described in detail in the drawings, the cross-sectional view of the device structure is not to scale in the general sense for ease of illustration, and the drawings are merely exemplary and should not be construed as limiting the scope of the invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
As shown in fig. 1, a biodegradable foam material preparation apparatus includes:
a biodegradable foam material preparation apparatus comprising: support element 1, set up the one-level extrusion unit 2 at support element 1 top still includes: the secondary extrusion unit 3 is arranged at the side part of the primary extrusion unit 2, the secondary extrusion unit 3 comprises a secondary driving source 301 and a secondary extrusion cylinder 302, and the supporting unit 1 is movably connected with the secondary extrusion cylinder 302 through the secondary driving source 301;
the secondary extrusion barrel 302 includes a wide barrel 3021, a connection barrel 3022, and a narrow barrel 3023, where the wide barrel 3021, the connection barrel 3022, and the narrow barrel 3023 are sequentially distributed on top of the support unit 1 and integrally formed;
The wide barrel 3021 comprises a primary treatment cavity 30213 and a secondary treatment cavity 30214 arranged inside the wide barrel 3021, extrusion cavities 30215 are respectively arranged on the sides of the primary treatment cavity 30213 and the secondary treatment cavity 30214, the primary treatment cavity 30213 and the secondary treatment cavity 30214 are respectively used for alternately pushing materials to the inside of the extrusion cavities 30215 through pushing members 306 inside the primary treatment cavity 30213, when the pushing members 306 inside the primary treatment cavity 30213 are located at the top of the primary treatment cavity 30213, the pushing members 306 inside the secondary treatment cavity 30214 are located at the bottom of the secondary treatment cavity 30214 at this time, the pushing members 306 are movably connected with a moving wheel 306331 through a movable rod 3063, and a trigger block 308 is rotatably arranged at the bottom of the moving wheel 30031.
1-4, the supporting unit 1 comprises a primary supporting frame 101 and a secondary supporting frame 102, wherein the primary supporting frame 101 is fixedly arranged at the bottom of the primary extruding unit 2, the secondary supporting frame 102 is fixedly arranged at the bottom of the secondary extruding unit 3, and the height of the primary supporting frame 101 is higher than that of the secondary supporting frame 102;
the primary extrusion unit 2 comprises a primary extrusion cylinder 201, the primary extrusion cylinder 201 is fixedly arranged at the top of a primary support frame 101, a primary driving source 203 is arranged at one side of the primary extrusion cylinder 201, the bottom of the other side of the primary extrusion cylinder 201 is fixedly arranged at the top of a wide feed cylinder 3021, a heating cavity 2011 and an output cavity 2012 are sequentially arranged in the primary extrusion cylinder 201 from outside to inside, the heating cavity 2011 is in conductive connection with a smelting unit 204, the output shaft of the primary driving source 203 is synchronously connected with an extrusion screw 2013, the top of the primary extrusion cylinder 201 is in conductive connection with a lower hopper 202, a blanking port 20121 at the bottom of the output cavity 2012 is arranged at the top of the wide feed cylinder 3021, the blanking port 20121 is in conductive connection with an input port 30211 at the top of the wide feed cylinder 3021 through a connecting pipe 2014, and a partition plate 30212 is arranged in the middle of the input port 30211;
The secondary extrusion unit 3 further comprises an air adding unit 303 and a heating unit 304, the air adding unit 303 is respectively connected with the inner parts of the primary treatment cavity 30213 and the secondary treatment cavity 30214 in a conducting manner through an air adding pipe 3031, and the heat transfer cavity 30216 is connected with the heating unit 304 in a conducting manner.
An output shaft of the secondary driving source 301 is rotatably connected with a rotating shaft 3011, the rotating shaft 3011 is rotatably arranged in a wide barrel 3021, a connecting barrel 3022 and a narrow barrel 3023, and the connecting barrel 3022 is in conductive connection with a die head 3024 through the narrow barrel 3023;
the upper and lower both sides of primary treatment chamber 30213 and secondary treatment chamber 30214 all are provided with division board 30212, all be equipped with sealed frame 305 between primary treatment chamber 30213, secondary treatment chamber 30214 and extrusion chamber 30215, extrusion chamber 30215 sets up in wide feed cylinder 3021, connect feed cylinder 3022 and narrow feed cylinder 3023's inside, be provided with heat transfer chamber 30216 between extrusion chamber 30215 and wide feed cylinder 3021, connect feed cylinder 3022 and narrow feed cylinder 3023, it is to be noted that in order to reduce the ageing of the alternately propelling movement material of primary treatment chamber 30213 and secondary treatment chamber 30214, do not set up heat transfer chamber 30216 between primary treatment chamber 30213, secondary treatment chamber 30214 and wide feed cylinder 3021, division board 30212 sets up at sealed frame 305's middle part, unidirectional cavity 3054 has been seted up to sealed frame 305's inside rotation of 305 is provided with axis of rotation 3011, be provided with the dynamic seal between axis 3011 and the sealed frame 305.
The surface of the sealing frame 305 is fixedly connected with the inner wall of the wide barrel 3021 through the annular side plate 3052, the sealing frame 305 is fixedly connected with the partition plate 30212 through the unidirectional block 3051, and the unidirectional block 3051 is fixedly arranged at the bottom of the sealing frame 305;
the inside activity of unidirectional cavity 3054 is provided with closing plate 3053, and the inside profile of unidirectional cavity 3054 and the external profile phase-match of closing plate 3053, closing plate 3053 runs through unidirectional piece 3051 and resistive plate 30512 swing joint through the upward pole 3053 of its bottom, resistive plate 30512 is through the built-in chamber 3053 elastic connection of elastic component 3059 and unidirectional piece 3051 inside, upward be provided with between pole 3053 and the unidirectional piece 3051 and move the sealing washer, elastic component 3059 is the spring preferentially.
Wherein, as shown in fig. 5, the rotating shaft 3011 comprises a thrust section 3012, a non-return section 3013 and an extrusion section 3014, and the thrust section 3012, the non-return section 3013 and the extrusion section 3014 of the rotating shaft 3011 are all arranged inside the extrusion cavity 30215;
the outside of the pushing section 3012, the non-return section 3013 and the extrusion section 3014 is wound with thread teeth 3015.
The tooth distance of the thread tooth 3015 wound outside the pushing section 3012 is larger than the tooth distance of the thread tooth 3015 wound outside the non-return section 3013 and the extrusion section 3014, the tooth distances of the thread tooth 3015 of the non-return section 3013 and the extrusion section 3014 are the same, and the distances between the pushing section 3012, the non-return section 3013 and the extrusion section 3014 and the inner wall of the extrusion cavity 30215 are sequentially reduced;
The height of the thread 3015 wound outside the pushing section 3012, the non-return section 3013 and the extrusion section 3014 is reduced in sequence, and in order to ensure the effect of pushing materials and extruding mixed materials, the distance between the pushing section 3012, the non-return section 3013 and the extrusion section 3014 and the inner wall of the extrusion cavity 30215 is reduced in sequence and matched with the height of the thread 3015 wound outside the pushing section 3012, the non-return section 3013 and the extrusion section 3014, so that the heights of the thread 3015 from the pushing section 3012, the non-return section 3013 and the extrusion section 3014 to the inner wall of the extrusion cavity 30215 are consistent, the uniformity of rotating extrusion of the materials by equipment is maintained, the mixing of different forces can be realized by different tooth distance designs, and the effect of mixed extrusion is improved.
It should be noted that, the primary driving source 203 and the secondary driving source 301 are preferably three-phase asynchronous gear motors, and the primary driving source 203 and the secondary driving source 301 are controlled by an external power source and an external controller (not shown).
The smelting unit 204 and the heating unit 304 are preferably composed of electromagnetic heaters and cooling fans, and both the smelting unit 204 and the heating unit 304 are controlled by an external power supply and an external controller (not shown).
The operation process comprises the following steps: when the preparation is needed, biodegradable materials to be foamed are manually added into the primary extrusion barrel 201 through the blanking hopper 202, the primary driving source 203 is started again, the primary driving source 203 drives the extrusion screw 2013 to rotationally extrude in the output cavity 2012 in the primary extrusion barrel 201, and the extruded materials in the primary extrusion barrel 201 are primarily heated to be in a molten state by being matched with the heating of the smelting unit 204, and the materials processed by the extrusion screw 2013 and the smelting unit 204 enter the input port 30211 through the blanking port 20121 and the connecting pipe 2014 to be subjected to subsequent serial extrusion; the molten material flowing into the input port 30211 from the output chamber 2012 through the blanking port 20121 and the connecting pipe 2014 is separated and guided into the primary processing chamber 30213 and the secondary processing chamber 30214 by the partition plate 30212 in the middle of the input port 30211, so that the subsequent alternate processing of the material in the wide barrel 3021 is facilitated.
Example 2
Referring to fig. 2, this embodiment differs from the first embodiment in that:
5-9, the pushing member 306 includes an extension rod 3061 and a push ring plate 3062, a rotating shaft 3011 is rotatably disposed on the inner side of the pushing member 306, the pushing member 306 is fixedly connected with the push ring plate 3062 through the extension rod 3061, a movable rod 3063 is installed at the bottom of the pushing member 306, and the push ring plate 3062 is designed to reduce the lowering speed of the sealing plate 3053 and reduce the backflow of materials in the extrusion cavity 30215 when the pushing member 306 can be lowered;
The inside of the pushing member 306 is provided with a placement cavity 3064, the inside of the placement cavity 3064 is provided with a plurality of processing cylinders 307, the number of the processing cylinders 307 is preferably 4, the left side and the right side of the pushing member 306 are provided with single scraping plates 3065, it is to be noted that the primary processing cavity 30213 and the secondary processing cavity 30214 are symmetrical with each other with the central line of the partition plate 30212, the inner space area of the primary processing cavity 30213 and the secondary processing cavity 30214 is the same, and the semicircular outline formed by the two single scraping plates 3065 and the pushing member 306 is matched with the inner outline of the primary processing cavity 30213 or the secondary processing cavity 30214 between the two partition plates 30212.
The number of the partition boards 30212 is two, the two partition boards 30212 are fixedly arranged between the sealing frame 305 and the bottom board 30217, a rotating shaft 3011 is rotatably arranged at the inner side of the partition boards 30212, the movable rod 3063 movably penetrates through the bottom board 30217 and is connected with the movable wheel 30681, a movable sealing gasket is arranged between the bottom board 30217 and the movable rod 3063, a rotating shaft 3011 is rotatably arranged at the middle part of the bottom board 30217, and a movable sealing gasket is arranged between the bottom board 30217 and the rotating shaft 3011;
10-12, the processing cylinder 307 comprises an inner shrinking cavity 3071 and an outer shrinking cavity 3072, the inner shrinking cavity 3071 and the outer shrinking cavity 3072 are in communication and distributed inside the processing cylinder 307, the outer shrinking cavity 3072 is on the same side with a push ring plate 3062 on the side of the push member 306, the inner diameter of the outer shrinking cavity 3072 is larger than that of the inner shrinking cavity 3071, a mounting plate 30721 is transversely arranged inside the outer shrinking cavity 3072, a rotating shaft 3073 is rotatably arranged in the middle of the mounting plate 30721, the rotating shaft 3073 is rotatably arranged inside the outer shrinking cavity 3072 and the inner shrinking cavity 3071, an outer solid sleeve 30722 is arranged at the bottom of the mounting plate 30721, the mounting plate 30721 is movably connected with the moving cylinder 30723 through an elastic piece 3014 inside the outer solid sleeve 30722, and a matching disc 30724 is arranged at the bottom of the moving cylinder 30723;
The top fixedly connected with a plurality of whirl pieces 3076 of interior shrink chamber 3071, whirl piece 3076 evenly distributed along the circumferencial direction of interior shrink chamber 3071, the number of whirl piece 3076 is preferably 8, interior shrink chamber 3071 passes through whirl piece 3076 and circle cover 30761 fixed connection, the inside rotation of circle cover 30761 is provided with rotation axis 3073, the bottom of circle cover 30761 is provided with cylinder piece 3075, cylinder piece 3075 is fixed to be set up on rotation axis 3073's surface, cylinder piece 3075 is preferably hollow structure and is convenient for cylinder piece 3075's light rotation, cylinder piece 3075's surface evenly distributed has rolling strip 30751, adjacent rolling strip 30751's inside is provided with overflow launder 30752, trigger vane 3074 is installed to the bottom of cylinder piece 3075, trigger vane 3074 is fixed to install rotation axis 3073's surface.
As shown in fig. 13, the trigger block 308 is composed of a sealing section 3081, a pushing section 3082 and a lifting section 3083, the sealing section 3081, the lifting section 3083 and the pushing section 3082 are integrally formed, the height of the pushing section 3082 is greater than that of the sealing section 3081, the lifting section 3083 is arranged between the sealing section 3081 and the pushing section 3082, two vertical plates 3084 are arranged at the top of the trigger block 308, the movable rod 3063 and the movable wheel 3031 are movably arranged between the two vertical plates 3084, and the trigger block 308 is fixedly connected to the surface of the rotating shaft 3011.
The rest of the structure is the same as in embodiment 1.
The operation process comprises the following steps:
when the primary driving source 203 is started, the secondary driving source 301 is also started, so that the output shaft of the secondary driving source 301 drives the rotating shaft 3011 to rotate, the rotating shaft 3011 drives the trigger block 308 to synchronously rotate in the rotation process, and then the trigger block 308 is driven to reciprocate up and down at the top of the trigger block 308 through the height transition from the sealing section 3081 to the pushing section 3082, and then the movable wheel 3031 and the movable rod 3063 which are arranged at the left side and the right side of the trigger block 308 reciprocate up and down, so that the movable rod 3063 passes through the bottom plate 30217 which is fixedly connected inside the wide barrel 3021 to drive the top pushing member 306 to reciprocate inside the primary processing cavity 30213 and the secondary processing cavity 30214 respectively, and the initial positions of the pushing member 306 inside the primary processing cavity 30213 and the secondary processing cavity 30214 are different, namely when the pushing member 306 inside the primary processing cavity 30213 is positioned at the top of the primary processing cavity 30213, the pushing member 306 inside the secondary processing cavity 30214 is positioned at the bottom of the secondary processing cavity 30214;
when the pushing member 306 lifts up in the secondary treatment cavity 30214, that is, the pushing ring plate 3062 at the top of the pushing member 306 and the single scraping plate 3065 at the side portion will push the input port 30211 into the molten material in the secondary treatment cavity 30214, while in pushing of the pushing member 306, in order to prevent leakage of the molten material by the pushing member 306, the matching disc 30724 designed at the top end of the inside of the processing member 307 is used for unidirectional sealing between the expanding cavity 3072 and the contracting cavity 3071 under the elastic constraint of the elastic member 30510, that is, in the lifting process of the pushing member 306, the inside of the processing member 307 is unidirectional sealed, so that the pushing member 306 and the single scraping plate 3065 form a sealed whole, and then the material pushed by the pushing member 306 and the single scraping plate 3065 enters the inside of the extrusion cavity 30215, and in the pushing member 306 pushes the extruded material to move from the bottom plate 30217 into the sealing frame 305, the extruded material pushed by the pushing member 306 pushes the sealing plate 3 out of the inside of the sealing frame 305, and the extruded material in the extrusion cavity 3055 is further separated from the inside of the secondary treatment cavity 30214 by the extrusion cavity 30115, and the extrusion cavity is further removed from the extrusion cavity 30214 by the extrusion cavity is rotated;
By designing the heights and pitches of the thread teeth 3015 wound outside the pushing section 3012, the non-return section 3013 and the extrusion section 3014, the pushing force of the materials passing through the pushing section 3012 to the non-return section 3013 and the extrusion section 3014 is gradually reduced, and by further combining the shape designs of the wide barrel 3021, the connecting barrel 3022 and the narrow barrel 3023 as shown in fig. 5, the backflow aging of the pushed materials is further prevented, and the additional pushing design of the pushing member 306 can reduce the extrusion backflow generated by the materials from the pushing section 3012 to the non-return section 3013, thereby further reducing the aging of the backflow of the materials, and further enabling the materials flowing into the extrusion cavity 30215 to be transported into the die head 3024 under the gradual guidance of the pushing section 3012, the non-return section 3013 and the extrusion section 3014 so as to realize extrusion foaming;
in order to ensure the effect of pushing materials and extruding mixed materials, the distances from the pushing section 3012, the non-return section 3013 and the extruding section 3014 to the inner wall of the extruding cavity 30215 are sequentially reduced, the distances are matched with the heights of the thread teeth 3015 wound outside the pushing section 3012, the non-return section 3013 and the extruding section 3014, and the heights of the thread teeth 3015 of the pushing section 3012, the non-return section 3013 and the extruding section 3014 are consistent with the heights of the inner wall of the extruding cavity 30215, so that the equipment can rotate and extrude the materials uniformly, and the mixing of different forces can be realized by different tooth pitch designs, and the effect of mixed extrusion is improved;
When the pushing member 306 moves downward in the first stage processing chamber 30213, i.e. moves from the sealing frame 305 to the bottom plate 30217, when the push ring plate 3062 at the top of the pushing member 306 is pulled out from the inside of the unidirectional chamber 3054, the sealing plate 3053 is pulled by the elastic member 3059, so that the sealing plate 3053 falls back into the inside of the sealing plate 3053, and the first stage processing chamber 30213 is sealed in a unidirectional manner, thereby reducing the traction influence of the falling back of the pushing member 306 on the extrusion chamber 30215 and preventing backflow of materials;
when the pushing member 306 descends, the pushing member 306 extrudes molten material input between the bottom of the pushing member 306 and the bottom plate 30217 through the input port 30211, the material is covered on the top of the carbon dioxide input by the gas pipe 3031 in the falling process to complete the covering and mixing, the extruded material flows into the interior of the internal shrinkage cavity 3071 under the action of pressure, and the material flowing into the interior of the internal shrinkage cavity 3071 pushes the matching disc 30724 to lift upwards under the action of pressure, so that the unidirectional constraint of the matching disc 30724 and the expanding cavity 3072 is released, and the material of the pushing member 306 and the bottom plate 30217 is transferred between the pushing member 306 and the sealing frame 305, so that the subsequent pushing member 306 is convenient to lift again;
When the material is transferred from the inner shrinkage cavity 3071 to the outer expansion cavity 3072, the flowing material can extrude and drive the triggering rotary blade 3074 to rotate, so that the triggering rotary blade 3074 drives the rotating shaft 3073 and the cylindrical block 3075 to rotate, in order to improve the rotating effect of the cylindrical block 3075, the cylindrical block 3075 can be made to be of a hollow structure, the difficulty of the cylindrical block 3075 rotating along with the inner shrinkage cavity 3071 is reduced, the flowing material can pass through the rolling bar 30751 and the overflow groove 30752 on the outer side of the rotating cylindrical block 3075 through extrusion, and then when the material mixed with carbon dioxide passes through the rolling bar 30751 and the overflow groove 30752, the material mixed by primary refining is arranged on the rotational flow block 3076 of the cylindrical block 3075, so that the refining and mixing effect of the mixed material can be improved.
Example 3
As shown in fig. 14, the present embodiment provides a method for using a biodegradable foam material preparation apparatus, comprising the steps of:
step one, blanking: feeding material into the interior of the primary barrel 201 through a discharge hopper 202;
step two, primary extrusion: by starting the primary driving source 203, the primary driving source 203 drives the extrusion screw 2013 to rotate, so that the extrusion screw 2013 is matched with the heating of the heating cavity 2011 to complete the primary heating extrusion of the material;
Step three, pushing for the second time: the extruded material is heated primarily and enters the input port 30211 through the blanking port 20121 and the connecting pipe 2014, so that the secondary driving source 301 drives the rotating shaft 3011 to rotate, and secondary extrusion pushing of the material is realized;
step four, reciprocating and uniformly: the pushing piece 306 is driven to alternately reciprocate in the primary treatment cavity 30213 and the secondary treatment cavity 30214 at the bottom of the input port 30211 by the cooperation of the rotating shaft 3011 and the trigger block 308;
fifth, unidirectional backflow prevention: by the movable fit of the sealing frame 305 and the sealing plate 3053 arranged at the side parts of the primary treatment cavity 30213 and the secondary treatment cavity 30214, when the pushing piece 306 pushes, the sealing plate 3053 moves out of the sealing frame 305 to realize conduction, and when the pushing piece 306 pushes back, the sealing plate 3053 returns to the sealing frame 305 to realize unidirectional closure;
step six, extruding and demolding: the materials in the pushing section 3012, the non-return section 3013 and the extrusion section 3014 are extruded and foamed through the die head 3024 under the rotation of the rotating shaft 3011 and the screw threads 3015.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (9)
1. A biodegradable foam material preparation apparatus comprising: supporting element (1), set up one-level extrusion unit (2) at supporting element (1) top, its characterized in that still includes: the secondary extrusion unit (3), the secondary extrusion unit (3) is arranged at the side part of the primary extrusion unit (2), the secondary extrusion unit (3) comprises a secondary driving source (301) and a secondary extrusion cylinder (302), and the supporting unit (1) is movably connected with the secondary extrusion cylinder (302) through the secondary driving source (301);
the secondary extrusion barrel (302) comprises a wide barrel (3021), a connecting barrel (3022) and a narrow barrel (3023), wherein the wide barrel (3021), the connecting barrel (3022) and the narrow barrel (3023) are sequentially distributed at the top of the supporting unit (1) and integrally formed;
the wide feed cylinder (3021) comprises a primary treatment cavity (30213) and a secondary treatment cavity (30214) which are arranged inside the wide feed cylinder, extrusion cavities (30215) are respectively arranged on the side parts of the primary treatment cavity (30213) and the secondary treatment cavity (30214), the primary treatment cavity (30213) and the secondary treatment cavity (30214) are respectively used for alternately pushing materials into the extrusion cavities (30215) through pushing pieces (306) inside the first treatment cavity and the secondary treatment cavity, the pushing pieces (306) are movably connected through movable rods (3063) and movable wheels (3031), trigger blocks (308) are rotatably arranged at the bottoms of the movable wheels (3031), sealing frames (305) are respectively arranged among the primary treatment cavity (30213), the secondary treatment cavity (30214) and the extrusion cavities (30215), one-way cavities (3054) are formed in the sealing frames (305), and rotating shafts (3011) are arranged inside the sealing frames (305); the inside of the unidirectional cavity (3054) is movably provided with a sealing plate (3053), the inner contour of the unidirectional cavity (3054) is matched with the outer contour of the sealing plate (3053), the sealing plate (3053) penetrates through the unidirectional block (3051) and the baffle (30512) through an upward moving rod (30511) at the bottom of the sealing plate, and the baffle (30512) is elastically connected with the built-in cavity (3053) inside the unidirectional block (3051) through an elastic piece (3059); the rotary shaft (3011) comprises a thrust section (3012), a check section (3013) and an extrusion section (3014), the thrust section (3012), the check section (3013) and the extrusion section (3014) of the rotary shaft (3011) are all arranged in an extrusion cavity (30215), screw threads (3015) are wound on the outsides of the thrust section (3012), the check section (3013) and the extrusion section (3014), a placement cavity (3064) is formed in the pushing piece (306), a plurality of treatment cylinder pieces (307) are arranged in the placement cavity (3064), and single scraping plates (3065) are arranged on the left side and the right side of the pushing piece (306);
The processing cylinder (307) comprises an inner contracting cavity (3071) and an outer expanding cavity (3072), the inner contracting cavity (3071) and the outer expanding cavity (3072) are communicated and distributed inside the processing cylinder (307), the outer expanding cavity (3072) is on the same side with a push ring plate (3062) on the side portion of the pushing piece (306), a mounting plate (30721) is transversely arranged inside the outer expanding cavity (3072), a rotating shaft (3073) is rotatably arranged in the middle of the mounting plate (30721), the rotating shaft (3073) is rotatably arranged inside the outer expanding cavity (3072) and the inner contracting cavity (3071), an outer fixed sleeve (30722) is arranged at the bottom of the mounting plate (30721), the mounting plate (30721) is movably connected with the moving cylinder (723) through an elastic piece (30514) inside the outer fixed sleeve (30722), and a matching disc (30724) is mounted at the bottom of the moving cylinder (723).
2. The apparatus for producing a biodegradable foam material according to claim 1, characterized in that:
an output shaft of the secondary driving source (301) is rotationally connected with a rotating shaft (3011), the rotating shaft (3011) is rotationally arranged inside a wide feed cylinder (3021), a connecting feed cylinder (3022) and a narrow feed cylinder (3023), and the connecting feed cylinder (3022) is in conductive connection with a die head (3024) through the narrow feed cylinder (3023);
the device is characterized in that partition plates (30212) are arranged on the upper side and the lower side of the primary treatment cavity (30213) and the upper side and the lower side of the secondary treatment cavity (30214), the extrusion cavity (30215) is arranged in the wide feed cylinder (3021), the connecting feed cylinder (3022) and the narrow feed cylinder (3023), a heat transfer cavity (30216) is arranged between the extrusion cavity (30215) and the wide feed cylinder (3021), the connecting feed cylinder (3022) and the narrow feed cylinder (3023), and the partition plates (30212) are arranged in the middle of the sealing frame (305).
3. The apparatus for producing a biodegradable foam material according to claim 2, characterized in that:
the surface of sealing frame (305) is through the inner wall fixed connection of ring curb plate (3052) and wide feed cylinder (3021), sealing frame (305) is through unidirectional block (3051) and division board (30212) fixed connection, unidirectional block (3051) is fixed to be set up in sealing frame (305) bottom.
4. The apparatus for producing a biodegradable foam material according to claim 2, characterized in that:
the tooth distance of the thread teeth (3015) wound outside the thrust section (3012) is larger than the tooth distance of the thread teeth (3015) wound outside the non-return section (3013) and the extrusion section (3014), the tooth distances of the thread teeth (3015) of the non-return section (3013) and the extrusion section (3014) are the same, and the distances of the thrust section (3012), the non-return section (3013) and the extrusion section (3014) from the inner wall of the extrusion cavity (30215) are sequentially reduced;
the heights of thread teeth (3015) wound outside the pushing section (3012), the non-return section (3013) and the extrusion section (3014) are sequentially reduced.
5. The apparatus for producing a biodegradable foam material according to claim 4, characterized in that:
the pushing piece (306) comprises an extension rod (3061) and a pushing ring plate (3062), a rotating shaft (3011) is arranged on the inner side of the pushing piece (306) in a rotating mode, the pushing piece (306) is fixedly connected with the pushing ring plate (3062) through the extension rod (3061), and a movable rod (3063) is arranged at the bottom of the pushing piece (306).
6. The apparatus for producing a biodegradable foam material according to claim 5, characterized in that:
the number of the partition plates (30212) is two, the two partition plates (30212) are fixedly arranged between the sealing frame (305) and the bottom plate (30217), and the movable rod (3063) movably penetrates through the bottom plate (30217) and is connected with the movable wheel (3031);
the trigger block (308) comprises sealed section (3081), promotion section (3082) and lifting section (3083), the height of promotion section (3082) is greater than the height of sealed section (3081), and is provided with lifting section (3083) between sealed section (3081) and the promotion section (3082), the top of trigger block (308) is provided with two riser (3084), movable rod (3063) and movable wheel (3031) activity set up two between riser (3084), trigger block (308) fixed connection is at the surface of axis of rotation (3011).
7. The apparatus for producing a biodegradable foam material according to claim 6, characterized in that:
the utility model discloses a rotary compressor, including circle cover (30761), top fixedly connected with a plurality of whirl pieces (3076) of interior shrink chamber (3071), whirl piece (3076) evenly distributed along the circumferencial direction of interior shrink chamber (3071), interior shrink chamber (3071) is through whirl piece (3076) and circle cover (30761) fixed connection, the inside rotation of circle cover (30761) is provided with rotation axis (3073), the bottom of circle cover (30761) is provided with cylinder piece (3075), cylinder piece (3075) fixed setting is on the surface of rotation axis (3073), the surface evenly distributed of cylinder piece (3075) has rolling strip (30751), adjacent the inside of rolling strip (30751) is provided with overflow launder (30752), trigger rotary vane (3074) are installed to the bottom of cylinder piece (3075), trigger rotary vane (3074) fixed mounting has the surface of rotation axis (3073).
8. The apparatus for producing a biodegradable foam material according to claim 7, characterized in that:
the support unit (1) comprises a first-stage support frame (101) and a second-stage support frame (102), wherein the first-stage support frame (101) is fixedly arranged at the bottom of the first-stage extrusion unit (2), the second-stage support frame (102) is fixedly arranged at the bottom of the second-stage extrusion unit (3), and the height of the first-stage support frame (101) is higher than that of the second-stage support frame (102);
the primary extrusion unit (2) comprises a primary extrusion cylinder (201), the primary extrusion cylinder (201) is fixedly arranged at the top of a primary supporting frame (101), a primary driving source (203) is arranged on one side of the primary extrusion cylinder (201), the bottom of the other side of the primary extrusion cylinder (201) is fixedly arranged at the top of a wide feed cylinder (3021), a heating cavity (2011) and an output cavity (2012) are sequentially arranged in the primary extrusion cylinder (201) from outside to inside, the heating cavity (2011) is in conductive connection with a smelting unit (204), the output shaft of the primary driving source (203) is in synchronous connection with an extrusion screw (2013), the top of the primary extrusion cylinder (201) is in conductive connection with a lower hopper (202), a blanking port (20121) at the bottom of the output cavity (2012) is arranged at the top of the wide feed cylinder (3021), the blanking port (20121) is connected with an input port (30211) at the top of the wide feed cylinder (3021) from outside to inside, and a partition plate (30211) is arranged in the middle of the input port (30211);
The secondary extrusion unit (3) further comprises an air adding unit (303) and a heating unit (304), the air adding unit (303) is respectively connected with the inner parts of the primary treatment cavity (30213) and the secondary treatment cavity (30214) through an air adding pipe (3031), and the heat transfer cavity (30216) is connected with the heating unit (304) in a conducting mode.
9. A method for using the biodegradable foam material preparation device, applied to the biodegradable foam material preparation device as set forth in claim 8, characterized by comprising the following steps:
step one, blanking: feeding the material into the interior of a primary extrusion cylinder (201) through a discharge hopper (202);
step two, primary extrusion: the primary driving source (203) is started, so that the primary driving source (203) drives the extrusion screw (2013) to rotate, the extrusion screw (2013) is matched with the heating cavity (2011) to heat, and the primary heating extrusion of materials is completed;
step three, pushing for the second time: the extruded materials are primarily heated and enter the input port (30211) through the blanking port (20121) and the connecting pipe (2014), so that the secondary driving source (301) drives the rotating shaft (3011) to rotate, and secondary extrusion pushing of the materials is realized;
step four, reciprocating and uniformly: the pushing piece (306) is driven to alternately reciprocate in the first-stage treatment cavity (30213) and the second-stage treatment cavity (30214) at the bottom of the input port (30211) through the cooperation of the rotating shaft (3011) and the triggering block (308);
Fifth, unidirectional backflow prevention: the sealing frame (305) and the sealing plate (3053) arranged at the side parts of the primary treatment cavity (30213) and the secondary treatment cavity (30214) are in movable fit, so that when the pushing piece (306) pushes, the sealing plate (3053) moves out of the sealing frame (305) to realize conduction, and when the pushing piece (306) pushes back, the sealing plate (3053) returns to the sealing frame (305) to realize unidirectional closing;
step six, extruding and demolding: the materials in the thrust section (3012), the non-return section (3013) and the extrusion section (3014) are driven by the rotation of the rotating shaft (3011) and the screw thread (3015) to pass through the die head (3024) for extrusion foaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN204658908U (en) * | 2015-06-02 | 2015-09-23 | 宁波象保合作区天吉自动化设备有限公司 | Second order high-performance extruder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204658908U (en) * | 2015-06-02 | 2015-09-23 | 宁波象保合作区天吉自动化设备有限公司 | Second order high-performance extruder |
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