CN114986846B - Polyethylene foaming extrusion molding device and method - Google Patents
Polyethylene foaming extrusion molding device and method Download PDFInfo
- Publication number
- CN114986846B CN114986846B CN202210586376.XA CN202210586376A CN114986846B CN 114986846 B CN114986846 B CN 114986846B CN 202210586376 A CN202210586376 A CN 202210586376A CN 114986846 B CN114986846 B CN 114986846B
- Authority
- CN
- China
- Prior art keywords
- unit
- extrusion
- plate
- pipe
- melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 117
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 24
- -1 Polyethylene Polymers 0.000 title claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 22
- 238000005187 foaming Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title abstract description 10
- 239000000289 melt material Substances 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 238000002844 melting Methods 0.000 claims abstract description 29
- 230000008018 melting Effects 0.000 claims abstract description 29
- 239000000155 melt Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 239000012768 molten material Substances 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 31
- 239000011261 inert gas Substances 0.000 claims description 31
- 239000006260 foam Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 238000010097 foam moulding Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000001174 ascending effect Effects 0.000 abstract description 10
- 230000032683 aging Effects 0.000 abstract description 6
- 238000005273 aeration Methods 0.000 abstract 2
- 230000033001 locomotion Effects 0.000 description 12
- 238000010992 reflux Methods 0.000 description 10
- 238000002156 mixing Methods 0.000 description 6
- 238000011049 filling Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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
- B29C48/25—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
-
- 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
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
-
- 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
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a polyethylene foaming extrusion molding device and a method, wherein the device supports a unit; a melting unit for heating the granular material into a melt material, wherein the melting unit is arranged at the top of the supporting unit; the extrusion unit is used for extruding and forming the molten material and is arranged at the bottom of the molten material unit; the extrusion unit comprises an extrusion screw for conveying melt materials, and the extrusion screw is arranged in the extrusion unit; and the control unit is used for pushing the melt in the extrusion unit and is arranged at the side part of the extrusion unit. The ascending leveling state of the pushing table can carry out periodical transmission pushing on the melt material aeration backflow along with the ascending of the moving pipe, and the descending folding state of the pushing table can not drive the melt material to backflow along with the descending of the moving pipe, so that the state of repeated aeration backflow of the melt material is reduced, and the cycle aging times of the melt material are reduced.
Description
Technical Field
The utility model relates to the technical field of polyethylene foaming, in particular to a polyethylene foaming extrusion molding device and a polyethylene foaming extrusion molding method.
Background
Polyethylene, also called PE, is a thermoplastic resin prepared by polymerizing ethylene, and has wide prospects in practical production and application, for example, polyethylene can be used as a matched plate in the furniture assembly process or as a ground mat or an important accessory for assembling the artwork in the application of furniture and artwork, and PE can be produced in a foaming manner by physical extrusion foaming, namely inert gas is dissolved in plastic melt or paste under pressure, and gas is released through decompression, so that air holes are formed in the plastic to foam.
Chinese patent CN208914556U discloses an extrusion equipment for improving flame retardant property of polyethylene chemical crosslinking foaming material, which comprises a main body, the externally mounted of main part has the shell, the upper end of shell is provided with the feed inlet, the one end of shell is provided with the hydraulic stem, and the one end of hydraulic stem is provided with the expansion plate, the below of hydraulic stem is provided with the motor, the internally mounted of main part has the spiral propelling movement pole, all install the heating pipe on the relative inner wall of main part, install the cooling plate on one side inner wall of main part, the inside of cooling plate is provided with the extrusion mouth, the below of spiral propelling movement pole is provided with the ventilation groove, and the fan is installed to the one end of ventilation groove, the air extraction fan is installed to the other end of ventilation groove, be provided with the fin between fan and the air extraction fan, the base is installed to the bottom of main part. The utility model has even extrusion, effective heat dissipation when the spiral pushing rod works, good cooling effect and capability of preventing damage to the machine caused by overhigh temperature.
However, there are the following problems in this type of device:
1. in practical use, when the equipment is used for physical foaming, inert gas is required to be mixed into a melt, and then the inert gas is dissolved into the melt through the rotation transmission of a screw, but in the transmission of the screw, if the rotation transmission time is shorter, the inert gas can cause uneven mixing, and if the rotation transmission time is longer, the melt can generate ageing to influence the forming quality of pe foaming;
2. and in filling inert gas, can be under the gaseous punching, make the solution produce the backward flow, and then can contain the long-term melt material that exists of fractional part backward flow in the fuse-element that leads to the backward flow, this partial material can exist the overlength time in the inside of barrel under the influence of backward flow, and then multiple circulation can lead to this partial melt material to produce ageing, influences the shaping quality of pe foaming.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides a polyethylene foaming extrusion molding device, which periodically transmits and pushes the inflated reflux of a melt material along with the rising of a moving pipe through the rising leveling state of a pushing table, and the descending folding state of the pushing table does not drive the melt material to reflux along with the falling of the moving pipe, so that the state of the inflated reflux of the melt material for many times is reduced, and the cycle aging times of the melt material are reduced.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a polyethylene foam extrusion molding apparatus comprising:
a supporting unit;
a melting unit for heating the granular material into a melt material, wherein the melting unit is arranged at the top of the supporting unit;
the extrusion unit is used for extruding and forming the molten material and is arranged at the bottom of the molten material unit;
the extrusion unit comprises an extrusion screw rod for conveying melt materials, the extrusion screw rod is arranged in the extrusion unit, a pushing table for pushing the melt materials forward is arranged in the extrusion screw rod, the bottom surface of the pushing table is movably connected with a moving pipe through a middle rod, and a connecting plate is arranged on the side part of the middle rod and used for controlling the pushing table to forward, horizontally push and backwards fold;
and the control unit is used for pushing the melt in the extrusion unit and is arranged at the side part of the extrusion unit.
Preferably, the connecting plates are symmetrically distributed by the central line of the moving pipe, the bottoms of the symmetrically distributed moving pipes are respectively provided with an adjusting rod and a driven rod, and the bottoms of the pushing tables are movably connected with the mounting grooves of the moving pipes through the central rods;
an ejection column is arranged on the inner side of the top of the extrusion screw rod, and the ejection column is connected with the extrusion machine head through the extrusion screw rod.
Preferably, the extrusion unit further comprises a gas input unit, and the gas input unit is respectively connected with the extrusion unit and the control unit in a conducting way through a gas input pipe;
the surface of moving the pipe has the air vent along its axial evenly distributed, air vent and one-way breather pipe switch on and are connected, one-way breather pipe sets up in the inside of moving the pipe, the inside of one-way breather pipe is equipped with the diaphragm that the gas pocket has been seted up on the surface, the lateral part of diaphragm is through the inner wall welding of restriction curb plate and one-way breather pipe, one side that the removal pipe inner wall was kept away from to the restriction curb plate is equipped with the bevel connection, bevel connection and one-way piece cooperate, one-way piece is through elastic connection piece and diaphragm elastic connection.
Preferably, the control unit comprises an extrusion power unit, the extrusion power unit is arranged at the top of the supporting unit, the extrusion power unit is in transmission connection with the driving disc through an output shaft of the extrusion power unit, and the top of the driving disc is in transmission connection with the driven disc;
the side that the unit was extruded in the driven plate was kept away from is equipped with protruding ring, the inboard transmission of protruding ring inner wall is connected with at least a set of allied oneself with the wheel, the center activity joint of driven plate has the inner disc, move pipe, adjusting lever and driven lever respectively with the corresponding through-hole sliding connection of inner disc surface, the top of driven plate is equipped with a plurality of protruding board.
Preferably, the internal connecting wheels are symmetrically arranged on the central line of the moving pipe, the internal connecting wheels are respectively connected with a primary cam cylinder and a secondary cam cylinder in a transmission way through a penetrating column, the surface of the primary cam cylinder is surrounded by a primary spiral groove, and the surface of the secondary cam cylinder is surrounded by a secondary spiral groove;
the secondary spiral groove is connected through adjustment gangbar and sleeve board and adjusting lever, the bottom of moving the pipe is equipped with middle part gangbar, the driven lever passes through its bottom lantern ring and moves pipe sliding connection, the upper and lower both sides of lantern ring are equipped with restriction section of thick bamboo and bullet piece respectively, the upper and lower both sides of bullet piece are equipped with lantern ring and sleeve board respectively, the one-level spiral groove is connected through main gangbar and one-level cam cylinder transmission.
Preferably, the sleeve plate is sleeved on the surface of the moving pipe, the bottom of the sleeve plate is provided with a ring plate, the ring plate is sleeved on the surface of the moving pipe, and the ring plate is elastically connected with the middle linkage plate through an elastic unit arranged around the ring plate;
the one-level spiral groove is connected with the inflatable support column in a sliding manner through the inflatable connecting rod, the bottom of the inflatable support column is connected with the inner wall of the control unit, and one side, far away from the one-level cam cylinder, of the inflatable connecting rod is fixedly sleeved with an inflatable plug.
Preferably, the inflation plug is movably connected with the inflation tube through the ventilation plate, the inflation tube is movably and hermetically connected with the movable tube through the sealing cavity, and the gas input tube is in conductive connection with the inner wall of the inflation tube;
the inner disc is fixedly connected with the inner wall of the control unit through a disc column, and the specification of the secondary spiral groove is double that of the primary spiral groove.
Preferably, the supporting unit comprises a moving wheel, at least one group of moving wheels is arranged at the bottom of the supporting unit, a fixed seat is arranged on the inner side of the moving wheel, and a supporting frame is arranged at the top of the supporting unit;
the support frame supports and sets up in the bottom of melting unit and extrusion platen, the extrusion platen passes through fixed backplate and control unit and extrudes power unit welding.
Preferably, the melting unit comprises a power unit, wherein the power unit is provided with a melting machine barrel through a linkage unit and a transmission screw;
the melt barrel is connected with the extrusion unit through a blanking port, the transmission screw is connected with the material control port through a material conveying port at the top of the transmission screw, a linkage box is arranged on the outer side of the linkage unit, and a cover plate is arranged on the outer side of an output shaft of the power unit.
The utility model also provides a production method for polyethylene foam molding by using the polyethylene foam extrusion molding device, which comprises the following steps:
step one, gravity feeding: the granular materials in the bin fall into the interior of the melting machine barrel under the traction of gravity;
step two, barrel melting materials: the heating unit controls the heating cover to heat, so that a melting machine barrel connected with the heating cover is heated, and granular materials in the melting machine barrel are heated to a melt state;
step three, foaming treatment: the melt in the melt cylinder falls into the extrusion unit under the transmission of the transmission screw, and inert gas is input to the outer side of the melt material through the gas input pipe;
step four, pressurizing and inflating: under the extrusion and inflation of the inflation plug, inert gas in the moving pipe can be input into the melt material through the vent hole;
step five, periodically pushing and stirring: the pushing table moves forward, pushes horizontally, moves backwards and folds to push and mix inert gases on the inner side and the outer side of the solution material;
step six, extrusion molding: the extrusion screw and the ejection column convey the melt material mixed with inert gas, so that the conveyed material is extruded and molded by the extruder head.
The utility model has the beneficial effects that:
(1) The inner connecting wheel of the utility model drives the driving link rod and the adjusting link rod which are connected with the inner connecting wheel to do sliding up-down movement through the first-stage spiral groove and the second-stage spiral groove which are arranged on the surface of the inner connecting wheel, so that the ascending leveling state of the pushing table can carry out periodical transmission pushing on the inflatable reflux of the melt material along with the ascending of the moving pipe, and the descending folding state of the pushing table can not drive the melt material to reflux along with the descending of the moving pipe, thereby reducing the state of the multi-time inflatable reflux of the melt material and reducing the circulating aging times of the melt material.
(2) According to the utility model, the hollow moving pipe is arranged in the melt material, the gas input pipe is respectively connected into the extrusion unit and the inflator connected with the moving pipe, the hollow moving pipe is used for filling inert gas outwards from the interior of the melt material through the one-way vent pipe and the vent hole, the contact probability of the whole melt material and the inert gas can be improved through the input of the inert gas at the inner side and the outer side, the mixing efficiency is improved, the ascending and unfolding pushing table can enable the inert gas at the inner side to be fully pushed and dispersed into the interior of the melt material in ascending movement, the foaming uniformity degree of the material is improved, the inflating link rod is inserted into the interior of the first-stage spiral groove through the inserting rod, the inflating plug connected with the inflating link rod can be used for inflating the interior of the inflator in the up-down movement, and the inert gas in the moving pipe can be fully flushed into the interior of the melt material under the externally inflated filling, and the mixing degree of the inert gas and the material is improved.
(3) According to the utility model, the unidirectional vent pipe is obliquely arranged along the conveying direction of the extrusion screw, and the unidirectional block and the limiting side plate which play a role in unidirectional blocking the outer side of the moving pipe and the inner side of the moving pipe are combined in the unidirectional vent pipe, so that the flow of melt materials on the outer side of the moving pipe into the moving pipe can be effectively reduced, and the service life of equipment is prolonged.
In conclusion, the utility model has the advantages of uniform mixing of inert gas and less aging reflux.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a meltunit;
FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;
FIG. 4 is an enlarged schematic view of the portion B of FIG. 2;
FIG. 5 is an enlarged schematic view of the portion C in FIG. 4;
FIG. 6 is a schematic view of the structure of an extrusion unit;
FIG. 7 is an enlarged schematic view of the portion D of FIG. 6;
FIG. 8 is an enlarged schematic view of portion E of FIG. 6;
FIG. 9 is an enlarged schematic view of the portion F in FIG. 8;
FIG. 10 is a schematic view of the inner disc structure;
FIG. 11 is a schematic diagram of a driven disk and inner disk connection;
FIG. 12 is a schematic view of the internal structure of a moving tube;
FIG. 13 is a schematic view of the internal structure of the one-way vent pipe;
fig. 14 is a process flow diagram of the present utility model.
In the figure:
1. a supporting unit; 101. a moving wheel; 102. a fixing seat; 103. a support frame; 1031. a barrel support leg; 1032. extruding a platen; 10321. fixing the backboard;
2. a melt unit; 201. a power unit; 202. a cover plate; 2021. a linkage box; 20211. a linkage unit; 20212. a drive screw; 2022. a melt barrel; 2023. a feed opening; 203. a storage bin; 2031. a material control port; 20311. a control board; 2032. a feeding port; 204. a heating unit; 2041. a wire; 2042. a heating mantle;
3. an extrusion unit; 301. a gas input unit; 3011. a gas input tube; 3012. an air pressure gauge; 302. extruding a screw; 3021. an ejection column; 3022. an extruder head; 303. a moving tube; 3031. a mounting groove; 30311. a middle rod; 30312. a pushing table; 30313. a connecting plate; 30314. an adjusting lever; 30315. a driven rod; 30316. a spring block; 30317. a limiting cylinder; 3032. sealing the cavity; 3033. a one-way vent pipe; 30331. a unidirectional block; 30332. an elastic connecting block; 30333. a cross plate; 30334. limiting the side plates; 304. a vent hole;
4. a control unit; 401. an extrusion power unit; 4011. a driving disk; 4012. an outer cover; 4013. a driven plate; 40131. a raised ring; 4014. an inner disk; 40141. a tray column; 40142. a raised sealing ring; 40143. a scraper seal ring; 402. a protruding plate; 4021. a balance head; 403. an inline wheel; 4031. threading a column; 4032. a primary cam cylinder; 40321. a secondary cam cylinder; 4033. a primary helical groove; 40331. a secondary helical groove; 404. adjusting the linkage rod; 4041. a sleeve plate; 405. a main linkage rod; 4051. a middle linkage plate; 4052. an elastic unit; 4053. a ring plate; 406. an inflation link; 4061. an inflatable support column; 4062. an air filling plug; 407. an inflator; 4071. and a ventilation plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As shown in fig. 1 to 4 and fig. 7 to 8, the present embodiment provides a polyethylene foam extrusion molding apparatus comprising:
a support unit 1;
a melting unit 2, wherein the melting unit 2 for heating the granular material into a melt material is arranged at the top of the supporting unit 1;
an extrusion unit 3, wherein the extrusion unit 3 for extrusion molding of the molten material is arranged at the bottom of the molten material unit 2;
the extrusion unit 3 comprises an extrusion screw 302 for conveying melt materials, the extrusion screw 302 is arranged in the extrusion unit 3, a pushing table 30312 for pushing the melt materials forward is arranged in the extrusion screw 302, the bottom surface of the pushing table 30312 is movably connected with a moving pipe 303 through a middle rod 30311, a connecting plate 30313 is arranged on the side part of the middle rod 30311, and the connecting plate 30313 is used for controlling the pushing table 30312 to perform forward flat pushing and backward folding;
a control unit 4, the control unit 4 for pushing the melt inside the extrusion unit 3 is provided at a side of the extrusion unit 3.
Wherein, the connecting plate 30313 is symmetrically distributed by a central line of the moving pipe 303, the bottoms of the symmetrically distributed moving pipes 303 are respectively provided with an adjusting rod 30314 and a driven rod 30315, the bottoms of the pushing tables 30312 are movably connected with the mounting grooves 3031 of the moving pipes 303 through middle rods 30311, and the mounting grooves 3031 of the moving pipes 303 are connected with the middle rods 30311 through threaded perforation of the screw rod, so that the middle rods 30311 are movably sleeved on the outer side of the screw rod;
an ejection column 3021 is arranged on the inner side of the top of the extrusion screw 302, the ejection column 3021 is connected with the extrusion head 3022 through the extrusion screw 302, the extrusion screw 302 is preferably of a hollow spiral structure, and the bottom of the extrusion screw 302 is connected to the surface of the driven plate 4013, so that the driven plate 4013 drives the extrusion screw 302 to perform rotary motion.
The extrusion unit 3 further comprises a gas input unit 301, and the gas input unit 301 is respectively connected with the extrusion unit 3 and the control unit 4 in a conducting way through a gas input pipe 3011; the gas input unit 301 is preferably an inert gas inflator;
the surface of the movable pipe 303 is uniformly provided with vent holes 304 along the axial direction thereof, the vent holes 304 are in conductive connection with the unidirectional vent pipe 3033, the unidirectional vent pipe 3033 is arranged in the movable pipe 303, a transverse plate 30333 with air holes formed in the surface is arranged in the unidirectional vent pipe 3033, the side part of the transverse plate 30333 is welded with the inner wall of the unidirectional vent pipe 3033 through a limiting side plate 30334, one side of the limiting side plate 30334, far away from the inner wall of the movable pipe 303, is provided with a bevel, the bevel is matched with the unidirectional block 30331, the unidirectional block 30331 is in elastic connection with the transverse plate 30333 through an elastic connecting block 30332, and the elastic connecting block 30332 is preferably an elastic rubber block or a spring.
The supplementary ones are: through setting up hollow movable tube 303 in the inside of fuse-element material, insert the inside of extruding unit 3 respectively with gas input tube 3011 and the inside of the inflator 407 who is connected with movable tube 303, hollow movable tube 303 is outwards irritated inert gas from the inside of fuse-element material through unidirectional breather pipe 3033 and air vent 304, and then through the input of the inert gas of inside and outside both sides, can improve the contact probability of the whole and inert gas of fuse-element material, improve the efficiency of mixing, and rise the promotion platform 30312 of expanding can make the inside inert gas fully promoted the inside of dispersion to the fuse-element material in the rising removal and improve the foaming uniformity degree of material.
The inflation link rod 406 is inserted into the first-stage spiral groove 4033 through the insertion rod, so that the inflation link rod 406 moves up and down along with the first-stage spiral groove 4033, the inflation plug 4062 connected with the inflation link rod 406 inflates the inside of the inflator 407 in the up and down movement, the inert gas in the movable pipe 303 is conveniently and fully flushed into the melt material under the additional inflation, and the mixing degree of the inert gas and the material is improved.
Through setting up unidirectional breather pipe 3033 slope along extrusion screw 302's direction of delivery to combine and be equipped with unidirectional block 30331 and restriction curb plate 30334 that play unidirectional blocking effect to the inside of removal pipe 303 outside removal pipe 303 in unidirectional breather pipe 3033's inside, can effectually reduce the melt material outside removal pipe 303 and flow into the inside of removal pipe 303, thereby improve the life of equipment.
As shown in fig. 5-10, the control unit 4 comprises an extrusion power unit 401, wherein the extrusion power unit 401 is arranged at the top of the supporting unit 1, the extrusion power unit 401 is preferably a three-phase asynchronous gear motor, the extrusion power unit 401 is in transmission connection with a driving disc 4011 through an output shaft thereof, and a driven disc 4013 is in transmission connection with the top of the driving disc 4011; the driving disk 4011 and driven disk 4013 are preferably gears;
the side part of the driven plate 4013 far away from the extrusion unit 3 is provided with a raised ring 40131, the inner side of the inner wall of the raised ring 40131 is in transmission connection with at least one group of inner connecting wheels 403, the number of the inner connecting wheels 403 is two, the inner side of the raised ring 40131 is provided with teeth, the inner connecting wheels 403 are preferably gears, the teeth of the inner connecting wheels 403 and the raised ring 40131 are in meshed connection, the center of the driven plate 4013 is movably clamped with an inner plate 4014, so that the inner plate 4014 does not move along with the driven plate 4013, the movable tube 303, the adjusting rod 30314 and the driven rod 30315 are respectively in sliding connection with corresponding through holes on the surface of the inner plate 4014, the top of the driven plate 4013 is provided with a plurality of raised plates 402, the top of the raised plates 402 is provided with a balance head 4021,
it should be noted that: the balance head 4021 is arranged on the inner side of the extrusion screw 302, when the balance head 4021 rotates along with the driven plate 4013, further when the gas input of the gas input pipe 3011 is overlarge, the material is driven to transversely impact, and the rotating balance head 4021 can rotate and convert the transversely impacted melt material in the hollow extrusion screw 302, so that the stroke of the transverse impact of the material is reduced, and the sinking of the material is prevented.
The outer sides of the driving disk 4011 and the driven disk 4013 are respectively provided with an outer cover 4012, the internal connection wheels 403 are symmetrically arranged on the central line of the moving pipe 303, the internal connection wheels 403 are respectively in transmission connection with a primary cam cylinder 4032 and a secondary cam cylinder 40321 through a penetrating column 4031, the bottoms of the penetrating columns 4031 are in rotary connection with the inner wall of the control unit 4 through bearings, the surface of the primary cam cylinder 4032 is surrounded by a primary spiral groove 4033, and the surface of the secondary cam cylinder 40321 is surrounded by a secondary spiral groove 40331;
the secondary spiral groove 40331 is connected with the sleeve plate 4041 and the adjusting rod 30314 through the adjusting linkage rod 404, the middle linkage plate 4051 is arranged at the bottom of the moving pipe 303, the driven rod 30315 is in sliding connection with the moving pipe 303 through a bottom sleeve ring thereof, the upper side and the lower side of the sleeve ring are respectively provided with a limiting cylinder 30317 and a spring block 30316, the upper side and the lower side of the spring block 30316 are respectively provided with the sleeve ring and the sleeve plate 4041, the limiting cylinder 30317 and the spring block 30316 are preferably made of elastic rubber materials, the limiting cylinders and the sleeve plate 4041 are supported and limited in running stroke, the primary spiral groove 4033 is in transmission connection with the primary cam cylinder 4032 through the main linkage rod 405, and the lengths of the driven rod 30315 and the adjusting rod 30314 are inconsistent.
Wherein, the sleeve plate 4041 is sleeved on the surface of the moving pipe 303, the bottom of the sleeve plate 4041 is provided with a ring plate 4053, the ring plate 4053 is sleeved on the surface of the moving pipe 303, the ring plate 4053 is elastically connected with the middle linkage plate 4051 through an elastic unit 4052 arranged around the ring plate 4053, and the elastic unit 4052 is preferably a spring;
the primary spiral groove 4033 is slidably connected with the inflatable support column 4061 through the inflatable link 406, the bottom of the inflatable support column 4061 is connected with the inner wall of the control unit 4, the inflatable support column 4061 is slidably connected with the inflatable link 406 through the lantern ring at the top of the inflatable support column 4061, the shape of the inflatable link 406 is Z-shaped, and an inflatable plug 4062 is fixedly sleeved on one side, far away from the primary cam cylinder 4032, of the inflatable link 406.
The gas filling plug 4062 is movably connected with the inflator 407 through a gas permeable plate 4071, gas holes are uniformly distributed on the surface of the gas permeable plate 4071, the inflator 407 is movably and hermetically connected with the movable pipe 303 through a sealing cavity 3032, a sealing ring is arranged at the joint of the sealing cavity 3032 and the inflator 407, the gas input pipe 3011 is in conductive connection with the inner wall of the inflator 407, and a gas pressure gauge 3012 is arranged on the surface of the gas input pipe 3011 in conductive connection;
the inner disk 4014 is fixedly connected with the inner wall of the control unit 4 through a disk column 40141, the specification of the secondary spiral groove 40331 is double that of the primary spiral groove 4033, the secondary spiral groove 40331 and the primary spiral groove 4033 are composed of two flat rails and two inclined rails, the inclined rails are arranged between the two flat rails, the sum of the movement strokes of the inclined rails and the flat rails of the primary spiral groove 4033 is equal to the movement stroke of a single inclined rail or a single flat rail of the secondary spiral groove 4033, the joint of the movable pipe 303, the adjusting rod 30314 and the driven rod 30315 and the inner disk 4014 is movably provided with a raised sealing ring 40142, and one side, close to the extrusion screw 302, of the movable pipe 303, the adjusting rod 30314 and the driven rod 30315 is provided with a scraping plate sealing ring 40143, and the outer side of the joint of the inner disk 4014. The scraper seal ring 40143 is preferably made of a hard rubber material, so that the double-layer seal structure is convenient for sliding and sealing the joints of the moving pipe 303, the adjusting rod 30314, the driven rod 30315 and the inner disk 4014, and the scraper seal ring 40143 can scrape the molten materials on the sliding surfaces of the moving pipe 303, the adjusting rod 30314 and the driven rod 30315 to prevent the molten materials on the surfaces from falling into the raised seal ring 40142;
it should be noted that: the adjusting linkage rod 404, the driving linkage rod 405 and the inflating linkage rod 406 are respectively connected with the secondary spiral groove 40331 and the primary rotating groove 4033 in a sliding way through inserted rods, the driving disk 4011 and the driven disk 4013 move along with the driving linkage rod through the driving of the extrusion power unit 401, the driven disk 4013 rotates to drive the inner linkage wheel 403 to rotate through the convex ring 40131 connected with the driving linkage rod 4013, the rotating inner linkage wheel 403 drives the driving linkage rod 405 and the adjusting linkage rod 404 connected with the inner linkage wheel 403 to do sliding up-down movement through the primary spiral groove 4033 and the secondary spiral groove 40331 arranged on the surfaces of the inner linkage wheel 403, the up-down movement of the driving linkage rod 405 drives the middle linkage plate 4051 and the moving pipe to do up-down movement, when the adjusting linkage rod 404 moves upwards, the sleeve plate 4041 at the bottom of the inner linkage wheel is slid upwards along the surface of the moving pipe 303, at this time, one side of the push table 30312 connected to the top of the adjusting linkage rod 404 through the connecting plate 30313 is lifted upwards, then the other side of the push table 30312 is lowered through the movable design in the middle of the push table 30312, the driven rod 30315 at the bottom of the push table 30312 is pushed to be lowered simultaneously when the push table descends, the collar connected to the bottom of the driven rod 30315 slides downwards along the surface of the moving tube 303, the other side of the push table 30312 is folded and retracted by the lowering of the other side when the side is lifted upwards, when the adjusting linkage rod 404 moves downwards, the moving direction of the process is opposite, but the push table 30312 is in the folded and retracted state again, when the adjusting linkage rod 404 moves upwards and downwards, the adjusting linkage rod 404 is in the inclined rail state of the secondary spiral groove 40331,
when the adjusting linkage rod 404 is in the flat rail state of the second-stage spiral groove 40331, the movable pipe 30312 is restored to the flat state at this time, and the adjusting linkage rod 404 is in the inclined rail stage of the second-stage spiral groove 40331, namely, when the driving linkage rod 405 is in the inclined rail stage of the first-stage spiral groove and the flat rail after the ascending stage, the movable pipe 303 and the movable pipe 30312 on the top of the driving linkage rod are driven to move forward to be close to the extruder head 3022, in the process, the adjusting linkage rod 404 is in the flat rail stage of the second-stage spiral groove 40331, when the driving linkage rod 405 is in the inclined rail stage of the second-stage spiral groove 40331 at the time of the inclined rail stage and the flat rail after the descending stage, namely, the movable pipe 303 is in the inclined rail stage of the second-stage spiral groove and the flat rail after the ascending stage, the movable pipe 30312 is driven to move forward to be close to the extruder head 3022, in the process, namely, when the driving linkage rod 405 is in the inclined rail stage after the ascending stage and the flat rail of the second-stage spiral groove, the movable pipe 303 is in the descending stage and the flat rail is in the descending stage, the inclined rail stage, the material reflux state is reduced, and the material reflux state is reduced due to the fact that the material is in the material reflux state is in the state of the inclined stage of the movable pipe 30312 along with the ascending stage.
As shown in fig. 1-4, the supporting unit 1 includes a moving wheel 101, at least one group of moving wheels 101 is provided at the bottom of the supporting unit 1, the number of the moving wheels 101 is eight, a fixed seat 102 is provided at the inner side of the moving wheels 101, and a supporting frame 103 is provided at the top of the supporting unit 1;
the support frame 103 supports the bottom of the melt unit 2 and the extrusion platen 1032, the bottom plate of the melt barrel 2022 is provided with barrel support legs 1031 for supporting, and the extrusion platen 1032 is welded with the control unit 4 and the extrusion power unit 401 through the fixed back plate 10321.
The melting unit 2 comprises a power unit 201, wherein the power unit 201 is preferably a three-phase asynchronous gear motor, the power unit 201 is formed by a linkage unit 20211 and a transmission screw 20212, the linkage unit 20211 is preferably a belt and synchronous wheels, the synchronous wheels are arranged on one side, close to the power unit 201, of an output shaft of the power unit 201 and the transmission screw 20212, and the two synchronous wheels are linked through the belt, and a melting machine barrel 2022 is arranged on the outer side of the transmission screw 20212;
the melt barrel 2022 is in conductive connection with the extrusion unit 3 through a blanking port 2023, the driving screw 20212 is in conductive connection with a material control port 2031 through a material conveying port 2032 at the top of the driving screw 20212, a control board 20311 for controlling blanking of the material control bin 203 is arranged in the middle of the material control port 2031, a linkage box 2021 is arranged on the outer side of the linkage unit 20211, and a cover plate 202 is arranged on the outer side of an output shaft of the power unit 201. The outside of the melting barrel 2022 and the extruding unit 3 are both provided with a heating cover 2042, the heating cover 2042 is electrically connected with the heating unit 204 through a conducting wire 2041, the inside of the heating cover 2042 is provided with a resistance wire, the heating unit 204 is preferably a power supply unit, the resistance wire is powered and heated through the power supply unit, so that the resistance wire dissolves and heats the particulate matters in the melting barrel 2022, and the particulate matters are heated and dissolved into a melt.
Example two
As shown in fig. 14, the present embodiment provides a polyethylene foaming extrusion molding method, which includes the following working steps:
step one, gravity feeding: the particulate material within the bin 203 falls under gravity traction into the interior of the melt barrel 2022;
step two, barrel melting materials: the heating unit 204 controls the heating cover 2042 to heat, so that the melting machine barrel 2022 connected with the heating cover 2042 is heated, and the granular material in the melting machine barrel 2022 is heated to a melt state;
step three, foaming treatment: the melt in the melt barrel 2022 falls into the extrusion unit 3 under the transmission of the transmission screw 20212, and inert gas is input to the outside of the melt material through the gas input pipe 3011;
step four, pressurizing and inflating: under the extrusion and inflation of the inflation plug 4062, inert gas in the moving tube 303 is input into the melt material through the vent hole 304;
step five, periodically pushing and stirring: the forward pushing and backward folding of the pushing table 30312 enables the inert gases inside and outside the solution materials to be pushed and mixed;
step six, extrusion molding: the extrusion screw 302 and the ejection column 3021 convey the melt material mixed with the inert gas, and the conveyed material is extruded by the extruder head 3022.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. A polyethylene foam extrusion molding apparatus, comprising:
a supporting unit;
a melting unit for heating the granular material into a melt material, wherein the melting unit is arranged at the top of the supporting unit;
the extrusion unit is used for extruding and forming the molten material and is arranged at the bottom of the molten material unit;
the extrusion unit comprises an extrusion screw rod for conveying melt materials, the extrusion screw rod is arranged in the extrusion unit, a pushing table for pushing the melt materials forward is arranged in the extrusion screw rod, the bottom surface of the pushing table is movably connected with a moving pipe through a middle rod, and a connecting plate is arranged on the side part of the middle rod and used for controlling the pushing table to forward, horizontally push and backwards fold;
the control unit is used for pushing the melt in the extrusion unit and is arranged at the side part of the extrusion unit;
the connecting plates are symmetrically distributed by the central line of the moving pipe, the bottoms of the symmetrically distributed moving pipes are respectively provided with an adjusting rod and a driven rod, and the bottoms of the pushing tables are movably connected with the mounting grooves of the moving pipes through the central rods;
an ejection column is arranged on the inner side of the top of the extrusion screw rod and is connected with the extrusion machine head through the extrusion screw rod;
the extrusion unit further comprises a gas input unit, and the gas input unit is respectively connected with the extrusion unit and the control unit in a conducting way through a gas input pipe;
the surface of the moving pipe is uniformly provided with vent holes along the axial direction of the moving pipe, the vent holes are in conductive connection with the unidirectional vent pipe, the unidirectional vent pipe is arranged in the moving pipe, a transverse plate with air holes on the surface is arranged in the unidirectional vent pipe, the side part of the transverse plate is welded with the inner wall of the unidirectional vent pipe through a limiting side plate, one side of the limiting side plate, which is far away from the inner wall of the moving pipe, is provided with an inclined opening, the inclined opening is matched with the unidirectional block, and the unidirectional block is in elastic connection with the transverse plate through an elastic connecting block;
the control unit comprises an extrusion power unit, the extrusion power unit is arranged at the top of the supporting unit, the extrusion power unit is in transmission connection with the driving disc through an output shaft of the extrusion power unit, and the top of the driving disc is in transmission connection with the driven disc;
the side part of the driven plate, which is far away from the extrusion unit, is provided with a bulge loop, the inner side of the inner wall of the bulge loop is in transmission connection with at least one group of internal connecting wheels, the center of the driven plate is movably clamped with an internal plate, the moving pipe, the adjusting rod and the driven rod are respectively in sliding connection with corresponding through holes on the surface of the internal plate, and the top of the driven plate is provided with a plurality of bulge plates;
the internal connecting wheels are symmetrically arranged on the central line of the moving pipe, the internal connecting wheels are respectively connected with a primary cam cylinder and a secondary cam cylinder in a transmission way through penetrating columns, the surface of the primary cam cylinder is surrounded by a primary spiral groove, and the surface of the secondary cam cylinder is surrounded by a secondary spiral groove;
the secondary spiral groove is connected through adjustment gangbar and sleeve board and adjusting lever, the bottom of moving the pipe is equipped with middle part gangbar, the driven lever passes through its bottom lantern ring and moves pipe sliding connection, the upper and lower both sides of lantern ring are equipped with restriction section of thick bamboo and bullet piece respectively, the upper and lower both sides of bullet piece are equipped with lantern ring and sleeve board respectively, the one-level spiral groove is connected through main gangbar and one-level cam cylinder transmission.
2. A polyethylene foam extrusion molding apparatus as set forth in claim 1, wherein,
the sleeve plate is sleeved on the surface of the moving pipe, the bottom of the sleeve plate is provided with a ring plate, the ring plate is sleeved on the surface of the moving pipe, and the ring plate is elastically connected with the middle linkage plate through an elastic unit arranged around the ring plate;
the one-level spiral groove is connected with the inflatable support column in a sliding manner through the inflatable connecting rod, the bottom of the inflatable support column is connected with the inner wall of the control unit, and one side, far away from the one-level cam cylinder, of the inflatable connecting rod is fixedly sleeved with an inflatable plug.
3. A polyethylene foam extrusion molding apparatus as set forth in claim 2, wherein,
the gas charging plug is movably connected with the inflator through the gas-permeable plate, the inflator is movably and hermetically connected with the movable pipe through the sealing cavity, and the gas input pipe is in conductive connection with the inner wall of the inflator;
the inner disc is fixedly connected with the inner wall of the control unit through a disc column, and the specification of the secondary spiral groove is double that of the primary spiral groove.
4. A polyethylene foam extrusion molding apparatus according to any one of claims 1 to 3, wherein,
the support unit comprises a movable wheel, at least one group of movable wheels is arranged at the bottom of the support unit, a fixed seat is arranged on the inner side of the movable wheel, and a support frame is arranged at the top of the support unit;
the support frame supports and sets up in the bottom of melting unit and extrusion platen, the extrusion platen passes through fixed backplate and control unit and extrudes power unit welding.
5. A polyethylene foam extrusion molding apparatus as set forth in claim 4, wherein,
the melting unit comprises a power unit, wherein the power unit is connected with a transmission screw through a linkage unit, and a melting machine barrel is arranged on the outer side of the transmission screw;
the melt barrel is connected with the extrusion unit through a blanking port, the transmission screw is connected with the material control port through a material conveying port at the top of the transmission screw, a linkage box is arranged on the outer side of the linkage unit, and a cover plate is arranged on the outer side of an output shaft of the power unit.
6. A production method for foam molding of polyethylene using a foam extrusion molding apparatus of polyethylene according to any one of claims 1 to 5, comprising:
step one, gravity feeding: the granular materials in the bin fall into the interior of the melting machine barrel under the traction of gravity;
step two, barrel melting materials: the heating unit controls the heating cover to heat, so that a melting machine barrel connected with the heating cover is heated, and granular materials in the melting machine barrel are heated to a melt state;
step three, foaming treatment: the melt in the melt cylinder falls into the extrusion unit under the transmission of the transmission screw, and inert gas is input to the outer side of the melt material through the gas input pipe;
step four, pressurizing and inflating: under the extrusion and inflation of the inflation plug, inert gas in the moving pipe can be input into the melt material through the vent hole;
step five, periodically pushing and stirring: the pushing table moves forward, pushes horizontally, moves backwards and folds to push and mix inert gases on the inner side and the outer side of the solution material;
step six, extrusion molding: the extrusion screw and the ejection column convey the melt material mixed with inert gas, so that the conveyed material is extruded and molded by the extruder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586376.XA CN114986846B (en) | 2022-05-27 | 2022-05-27 | Polyethylene foaming extrusion molding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586376.XA CN114986846B (en) | 2022-05-27 | 2022-05-27 | Polyethylene foaming extrusion molding device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114986846A CN114986846A (en) | 2022-09-02 |
| CN114986846B true CN114986846B (en) | 2024-04-12 |
Family
ID=83028812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210586376.XA Active CN114986846B (en) | 2022-05-27 | 2022-05-27 | Polyethylene foaming extrusion molding device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114986846B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117885270B (en) * | 2024-03-14 | 2024-06-11 | 福建大方睡眠科技股份有限公司 | Foaming equipment and foaming process for producing bio-based polyurethane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1112428A (en) * | 1964-05-08 | 1968-05-08 | Kpt Mfg Company | Elastic melt extruder having internal feed conveyor |
| CN108715019A (en) * | 2018-05-14 | 2018-10-30 | 北京工商大学 | A kind of interior inflatable extrusion foaming device and forming method |
| CN112081008A (en) * | 2020-09-03 | 2020-12-15 | 绍兴市柯桥区兰亭盛欧塑料制品厂 | PVC handrail |
| CN213006456U (en) * | 2020-07-09 | 2021-04-20 | 连云港有道新材料科技有限公司 | Polypropylene double-screw extrusion production system |
| CN214395310U (en) * | 2020-11-02 | 2021-10-15 | 福建省泉州恒盛塑胶有限公司 | Extrusion forming device for plastic pipeline production and processing |
-
2022
- 2022-05-27 CN CN202210586376.XA patent/CN114986846B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1112428A (en) * | 1964-05-08 | 1968-05-08 | Kpt Mfg Company | Elastic melt extruder having internal feed conveyor |
| CN108715019A (en) * | 2018-05-14 | 2018-10-30 | 北京工商大学 | A kind of interior inflatable extrusion foaming device and forming method |
| CN213006456U (en) * | 2020-07-09 | 2021-04-20 | 连云港有道新材料科技有限公司 | Polypropylene double-screw extrusion production system |
| CN112081008A (en) * | 2020-09-03 | 2020-12-15 | 绍兴市柯桥区兰亭盛欧塑料制品厂 | PVC handrail |
| CN214395310U (en) * | 2020-11-02 | 2021-10-15 | 福建省泉州恒盛塑胶有限公司 | Extrusion forming device for plastic pipeline production and processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114986846A (en) | 2022-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114986846B (en) | Polyethylene foaming extrusion molding device and method | |
| CN113290775A (en) | Plasticizing injection molding device of exhaust type injection molding machine | |
| CN115782129A (en) | Preparation method of degradable plastic | |
| CN116900316B (en) | Metal injection molding device with self-cleaning function | |
| CN110341159A (en) | A kind of interval pattern dovetail groove tube head suction pipe machining production line | |
| CN113942208A (en) | Automobile interior trim part prepared by micro-foaming injection molding process | |
| CN204466799U (en) | Print cartridge and three-dimensional printer | |
| CN115782403A (en) | Inkjet printer for computer inkjet printing | |
| CN213860532U (en) | Micro-foaming injection charging barrel | |
| CN116353011B (en) | Biodegradable foam material preparation equipment and application method thereof | |
| CN114801300A (en) | Extrusion forming device for processing activated carbon | |
| CN214982692U (en) | Plasticizing injection molding device of exhaust type injection molding machine | |
| CN104589653A (en) | Print cartridge, three-dimensional printer and three-dimensional printing method | |
| CN110181709B (en) | Plastic granules cooling system with higher speed | |
| CN219095715U (en) | Extrusion equipment of foaming ball | |
| CN220681980U (en) | Printing equipment for PE (polyethylene) printing bag | |
| CN206551457U (en) | A kind of Twin screw extruder | |
| CN215704024U (en) | Heating device of biodegradable high-speed vacuum plastic sucking machine | |
| CN214820702U (en) | Forming equipment for processing pen core of fountain pen | |
| CN216267487U (en) | PBAT foaming sheet production equipment | |
| CN2477344Y (en) | Defoaming machine | |
| CN218111795U (en) | A extruder for LED lamp shade production plastic strip | |
| CN219363497U (en) | Glass ball forming equipment | |
| CN220742157U (en) | Photo-curing rapid prototyping printer | |
| CN212312416U (en) | Agitating unit is used in production of full vulcanization polyolefin elastomer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Park 1, Yingtian Industrial Park, No. 12 Fuqiang Road, Yingdong District, Fuyang City, Anhui Province, 236000 Applicant after: Anhui Daijia Industrial Co.,Ltd. Address before: 236000 Yingqing science and Technology Park, Yingdong Economic Development Zone, Fuyang, Anhui Applicant before: ANHUI DAIJIA TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |