CN205818227U - A kind of pellet device of underwater pelletizer - Google Patents
A kind of pellet device of underwater pelletizer Download PDFInfo
- Publication number
- CN205818227U CN205818227U CN201620281568.XU CN201620281568U CN205818227U CN 205818227 U CN205818227 U CN 205818227U CN 201620281568 U CN201620281568 U CN 201620281568U CN 205818227 U CN205818227 U CN 205818227U
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- China
- Prior art keywords
- mould
- cutting knife
- pelletizing chamber
- underwater pelletizer
- pellet device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
- B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses the pellet device of a kind of underwater pelletizer; including cutter assembly, pelletizing chamber, cooling water pipe, heating arrangement, mould; described cutter assembly is arranged on pelletizing chamber; described cooling water pipe is arranged on upper and lower both sides, pelletizing chamber and communicates; the described pelletizing chamber other end is connected with mould, and mould excircle is provided with heating assembly；During use, it is close with die-face that cutter assembly enters pelletizing chamber, and melted plastics die hole from mould enters, and the heated rear and cutting knife of high speed rotating and cooling water act on generation plastic grain jointly.The pellet device simple in construction of this underwater pelletizer, it is possible to effectively prevent the rigid collision of cutting knife and mould, reduces the abrasion of cutting knife, also reduces the destruction of all moulds simultaneously, promotes underwater cutpellet engine efficiency.
Description
Technical field
This utility model relates to plastic grain cutting machine technical field, the pellet device of a kind of underwater pelletizer.
Background technology
The operation principle of traditional waste plastics recovery extruding granulator is by single-step form or two steps type extruder; by plastics melt filteration; extrusion tie rod; pelletizing after the most cooled solidification; and underwater cutpellet extruding granulator is without tie rod or can not be under conditions of tie rod; contacting and a kind of novel mechanical of directly pelletizing with cooling water in the moment of melt extrusion die face, melt pelletizing has obvious advantage relative to solid-state pelletizing.Owing to plastics are to be scraped by blade under melt state, solidification after circulating water, the high polymer of different viscosities all can use this granulating form, and under melt state, pelletizing will not form any dust, and pelletizing shape is regular, packs, it is the most more convenient to transport；Load according to extrusion capacity Auto-matching regulation die head and pelletizing speed, change the size of pelletizing, it is also possible to knife rest during the different blade number of artificial employing changes pelletizing size and shape；Pelletizing, cooling are combined together and eliminate the cold rinse bank of 4-6mm length, greatly reduces floor space；Prilling realizes automatization, easy to operate, noise is relatively low, chipping qualities is good.There is the yield bigger than traditional tie rod pelletizing, lower energy consumption.
Underwater cutpellet pelletize unit generally comprises single-step form or two rank vented extruders, flour milling pelletizing system, flexible tool rest, vertical automatic dehydration (drying) device, shaker separator, blast system, gather materials hopper, and control system forms.When uniform high-temperature fusion shape material enters die head runner from upstream equipment (reactor/screw extruder/Melt Pump etc.) end; material is cut into drop when just leaving die orifice by the pelleter blade of high speed rotating and enters in processing water; owing to the drop-wise polymer of the maximized physical characteristic of particle specific surface area and fusing is with the temperature difference of processing water, drop solidifies and forms the granule close to spheroid.The pelletize mode of this " somewhere between fervent and cold cut critical state " determines it and can be good at competent molten state intensity difference, and viscosity is big, the material granulation operation high to heat sensitivity.
Wherein, flour milling pelletizing system is the critical component of underwater pelletizer, and cutting knife coordinates generation plastic grain with die orifice, and it is close that cutting knife and mould often lean on, and easily causes collision or the abrasion of cutter, even damages mould.
Summary of the invention
Goal of the invention of the present utility model is, overcomes the deficiency of art methods, it is provided that a kind of simple in construction; can effectively prevent the rigid collision of cutting knife and mould; reduce the abrasion of cutting knife, also reduce the destruction of all moulds simultaneously, promote the pellet device of the underwater pelletizer of underwater cutpellet engine efficiency.
For achieving the above object, it is proposed that following technical scheme:
A kind of pellet device of underwater pelletizer; including cutter assembly, pelletizing chamber, cooling water pipe, heating arrangement, mould; described cutter assembly is arranged on pelletizing chamber; including tool rest, cutter shaft, cutting knife; cutting knife is arranged on the side end of described tool rest by fixing nut, and cutter shaft and tool rest are at center floating connection；Described cooling water pipe is arranged on upper and lower both sides, pelletizing chamber and communicates, and a cooling water cooling water pipe from which enters pelletizing chamber, flows out from another cooling water pipe；The described pelletizing chamber other end is connected with mould, and mould excircle is provided with heating assembly；During use, it is close with die-face that cutter assembly enters pelletizing chamber, and melted plastics die hole from mould enters, and the heated rear and cutting knife of high speed rotating and cooling water act on generation plastic grain jointly.
Described pelletizing chamber is metal tube, the case hardened process of inwall, has good antirust ability.
The surface that described mould is relative with cutting knife has one layer of ring-shaped pottery layer, and described die hole is arranged in the middle of ring-shaped pottery layer.Described ceramic layer material is zirconium oxide；The thickness of described zirconia layer is more than 5mm.
Described die hole is the through hole that a series of annular array is arranged, and molten plastic, after filter screen device extruding is filtered, enters pelletizing chamber from die hole.
Described heating arrangement includes adding heat pipe mounting seat, adding heat pipe；The described heat pipe mounting seat that adds is ring-shaped, and mould is arranged on and adds in heat pipe mounting seat；Add and in heat pipe mounting seat, be provided with some installing holes, described in add heat pipe and be arranged in installing hole.
Described tool rest is square structure, is respectively arranged with a cutting knife in square corner, and described four cutting knifes are symmetrically installed, and are provided with arc groove between two cutting knifes, and relative arc groove is symmetrical.
Described floating connection includes that pin and mounting groove, the pin of described more than a group are arranged on cutter shaft end, with cutter shaft right angle setting；Described mounting groove is arranged in tool rest installing hole, corresponding with pin, and described mounting groove is more than pin at axial length, in radial direction and pin matched in clearance；Cutter shaft end is that Spherical Clearance coordinates with tool rest installing hole contact surface.During use, cutter shaft drives tool rest high-speed rotation, and owing to having certain gap at axial cutter shaft and tool rest, therefore, tool rest can offset certain angle on contact sphere, and when rotating, due to the Self-centering Action of sphere, tool rest can keep vertical relation with cutter shaft.
Described cutting knife is harveyed rectangle alloy cutter, and described cutting knife centre position is provided with some installing holes.After cutting blade abrasion, by changing different installing holes, improve the utilization rate of cutting knife.
The beneficial effect of this utility model:
The pellet device of a kind of underwater pelletizer of the present utility model; cutter assembly have employed the floating connection of tool rest and cutter shaft, make the collision effectively preventing cutting knife with mould, reduce the abrasion of cutting knife; and it is provided with ceramic layer at mold working surface, effectively reduces the abrasion of mould.
Accompanying drawing explanation
Fig. 1 is pellet device front sectional view；
Fig. 2 is pellet device left view；
Fig. 3 is cutter assembly 3 dimensional drawing；
Fig. 4 is cutter assembly front sectional view；
Fig. 5 is cutting knife tomograph；
Wherein, 1, cutter assembly；2, pelletizing chamber；3, cooling water pipe；4, heat pipe mounting seat is added；5, heat pipe is added；6, mould；7, die hole；8, ceramic layer；
11, tool rest；12, cutter shaft；13, cutting knife；14, fixing nut；15, pin；16, mounting groove；131, installing hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings the pellet device of a kind of underwater pelletizer of the present utility model is further described in detail:
As shown in Figure 1; a kind of pellet device of underwater pelletizer; including cutter assembly 1, pelletizing chamber 2, cooling water pipe 3, heating arrangement, mould 6; described cutter assembly 1 is arranged on pelletizing chamber 2; including tool rest 11, cutter shaft 12, cutting knife 13; cutting knife 13 is arranged on the side end of described tool rest 11 by fixing nut 14, and cutter shaft 12 and tool rest 11 are at center floating connection；Described cooling water pipe 3 is arranged on both sides, pelletizing chamber about 2 and communicates, and a cooling water cooling water pipe 3 from which enters pelletizing chamber 2, flows out from another cooling water pipe 3；Described pelletizing chamber 2 other end is connected with mould 6, and mould 6 excircle is provided with heating assembly；During use, it is close with mould 6 work surface that cutter assembly 1 enters pelletizing chamber 2, and melted plastics die hole 7 from mould 6 enters, and the heated rear and cutting knife 13 of high speed rotating and cooling water act on generation plastic grain jointly.
Preferably, described pelletizing chamber 2 is metal tube, and the case hardened process of inwall has good antirust ability.
As in figure 2 it is shown, described mould 6 surface relative with cutting knife 13 has one layer of ring-shaped pottery layer 8, described die hole 7 is arranged in the middle of ring-shaped pottery layer 8.Described ceramic layer 8 material is zirconium oxide；The thickness of described zirconia layer is more than 5mm.Described die hole 7 is the through hole that a series of annular array is arranged, and molten plastic, after filter screen device extruding is filtered, enters pelletizing chamber 2 from die hole 7.
As shown in Figure 1, 2, described heating arrangement includes adding heat pipe mounting seat 4, adding heat pipe 5；The described heat pipe mounting seat 4 that adds is ring-shaped, and mould 7 is arranged on and adds in heat pipe mounting seat 4；Add and in heat pipe mounting seat 4, be provided with some installing holes, described in add heat pipe 5 and be arranged in installing hole.
As it is shown on figure 3, described tool rest 11 is square structure, being respectively arranged with a cutting knife in square corner, described four cutting knifes 13 are symmetrically installed, and are provided with arc groove between two cutting knifes 13, and relative arc groove is symmetrical.
As shown in Figure 4, described floating connection includes that pin 15 and mounting groove 16, the pin 15 of described more than a group are arranged on cutter shaft 12 end, with cutter shaft 12 right angle setting；Described mounting groove 16 is arranged in tool rest 11 installing hole, corresponding with pin 15, and described mounting groove 16 is more than pin 15 at axial length, in radial direction and pin 15 matched in clearance；Cutter shaft 12 end is that Spherical Clearance coordinates with tool rest 11 installing hole contact surface.During use, cutter shaft 12 drives tool rest 11 high-speed rotation, owing to having certain gap at axial cutter shaft 12 with tool rest 11, therefore, tool rest 11 can offset certain angle on contact sphere, and when rotating, due to the Self-centering Action of sphere, tool rest 11 can keep vertical relation with cutter shaft 12.
As it is shown in figure 5, described cutting knife 13 is harveyed rectangle alloy cutter, described cutting knife 13 centre position is provided with some installing holes 131.After cutting knife 13 weares and teares, by changing different installing holes 131, improve the utilization rate of cutting knife 13.
Claims (10)
1. the pellet device of a underwater pelletizer; it is characterized in that; including cutter assembly, pelletizing chamber, cooling water pipe, heating arrangement, mould; described cutter assembly is arranged on pelletizing chamber; including tool rest, cutter shaft, cutting knife; cutting knife is arranged on the side end of described tool rest by fixing nut, and cutter shaft and tool rest are at center floating connection；Described cooling water pipe is arranged on upper and lower both sides, pelletizing chamber and communicates, and a cooling water cooling water pipe from which enters pelletizing chamber, flows out from another cooling water pipe；The described pelletizing chamber other end is connected with mould, and mould excircle is provided with heating assembly；During use, it is close with die-face that cutter assembly enters pelletizing chamber, and melted plastics die hole from mould enters, and the heated rear and cutting knife of high speed rotating and cooling water act on generation plastic grain jointly.
The pellet device of a kind of underwater pelletizer the most according to claim 1, it is characterised in that described heating arrangement includes adding heat pipe mounting seat, adding heat pipe；The described heat pipe mounting seat that adds is ring-shaped, and mould is arranged on and adds in heat pipe mounting seat；Add and in heat pipe mounting seat, be provided with some installing holes, described in add heat pipe and be arranged in installing hole.
The pellet device of a kind of underwater pelletizer the most according to claim 1, it is characterised in that described die hole is the through hole that a series of annular array is arranged, molten plastic, after filter screen device extruding is filtered, enters pelletizing chamber from die hole.
The pellet device of a kind of underwater pelletizer the most according to claim 1, it is characterised in that described pelletizing chamber is metal tube, the case hardened process of inwall.
The pellet device of a kind of underwater pelletizer the most according to claim 1, it is characterised in that described pelletizing chamber is metal tube, the case hardened process of inwall；Described die hole is the through hole that a series of annular array is arranged, and molten plastic, after filter screen device extruding is filtered, enters pelletizing chamber from die hole.
6., according to the pellet device of a kind of underwater pelletizer described in claim 2 or 5, it is characterised in that the surface that described mould is relative with cutting knife has one layer of ring-shaped pottery layer, described die hole is arranged in the middle of ring-shaped pottery layer.
The pellet device of a kind of underwater pelletizer the most according to claim 6, it is characterised in that described ceramic layer material is zirconium oxide；The thickness of described zirconia layer is more than 5mm.
8. according to the pellet device of a kind of underwater pelletizer described in claim 1-5 or 7 any one; it is characterized in that; described tool rest is square structure; it is respectively arranged with a cutting knife in square corner; four described cutting knifes are symmetrically installed; being provided with arc groove between two cutting knifes, relative arc groove is symmetrical.
9. according to the pellet device of a kind of underwater pelletizer described in claim 1-5 or 7 any one, it is characterised in that described floating connection includes that pin and mounting groove, the described pin of more than a group are arranged on cutter shaft end, with cutter shaft right angle setting；Described mounting groove is arranged in tool rest installing hole, corresponding with pin, and described mounting groove is more than pin at axial length, in radial direction and pin matched in clearance；Cutter shaft end is that Spherical Clearance coordinates with tool rest installing hole contact surface.
10., according to the pellet device of a kind of underwater pelletizer described in claim 1-5 or 7 any one, it is characterised in that described cutting knife is harveyed rectangle alloy cutter, described cutting knife centre position is provided with some installing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281568.XU CN205818227U (en) | 2016-04-05 | 2016-04-05 | A kind of pellet device of underwater pelletizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281568.XU CN205818227U (en) | 2016-04-05 | 2016-04-05 | A kind of pellet device of underwater pelletizer |
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| Publication Number | Publication Date |
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| CN205818227U true CN205818227U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620281568.XU Active CN205818227U (en) | 2016-04-05 | 2016-04-05 | A kind of pellet device of underwater pelletizer |
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| CN (1) | CN205818227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729659A (en) * | 2016-04-05 | 2016-07-06 | 东莞市卡帝德塑化科技有限公司 | Granulating device of underground granulator |
-
2016
- 2016-04-05 CN CN201620281568.XU patent/CN205818227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729659A (en) * | 2016-04-05 | 2016-07-06 | 东莞市卡帝德塑化科技有限公司 | Granulating device of underground granulator |
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| GR01 | Patent grant |