CN207267311U

CN207267311U - Plastics granulator

Info

Publication number: CN207267311U
Application number: CN201721239001.7U
Authority: CN
Inventors: 张金伍
Original assignee: Zhejiang Ouli Machinery Co Ltd
Current assignee: Zhejiang Ouli Machinery Co Ltd
Priority date: 2017-09-26
Filing date: 2017-09-26
Publication date: 2018-04-24
Anticipated expiration: 2027-09-26

Abstract

The utility model discloses plastics granulator, including feeding cylinder, feed cylinder and feeding spiro rod, it is characterised in that：The bottom of feed cylinder is equipped with upper lower millstone, make to relatively rotate between upper lower millstone to set, abrasive material space is formed between the lower face of upper millstone and the upper surface of lower millstone, the lower face of upper millstone has first conical surface being inwardly recessed, the upper surface of lower millstone has second conical surface of outwardly convex, first, the distance that second conical surface mutually leaves tapers into outward from interior in the radial direction in mill, and the outermost circle in abrasive material space forms extrusion, first conical surface circumference lays a plurality of upper groove, and some first group of bars are set, first group of bar protrudes from first conical surface, second conical surface circumference lays a plurality of lower groove, and some second group of bars are set, second group of bar protrudes from second conical surface, on, the outboard end of lower groove extends to extrusion.The utility model carries out plastics granulation in a manner of the material of turning a millstone for increasing density of material, suitable for the strong plastic material of viscosity.

Description

Plastics granulator

Technical field

It the utility model is related to a kind of plastics machinery, and in particular to a kind of plastics granulator.

Background technology

Plastic granulator is a kind of equipment that plastic raw materials are made to plastic pellet.It is substantially currently on the market using electricity Heat extrusion way and carry out plastic granulating, is i.e. plastic raw materials are added in horizontal barrel, and barrel passes through the high-power electrical heating in surface Plastic raw materials are subjected to high temperature melt, feeding is then carried out from one long in barrel screw rod and will melt plastics from die head toward It is outer to be extruded into slice, plastic pellet is then cut into by blade after slice water cooling, above-mentioned comminutor energy consumption is big, volume is big. For overcome the deficiencies in the prior art, applicant develops new plastic granulator, is rotated, made using the scraper plate in extrusion die cylinder Scraper block on scraper plate, which rolls the material positioned at extrusion die cylinder inner wall and produces heat, melts material to carry out plastic granulating, no Use electrical heating, thus can have more than 30% it is energy saving.But for the very strong plastic raw materials of some viscosity, the viscosity after thawing Height, mobility are very poor, and enter the plastic raw materials of extrusion die cylinder after the feeding for passing through feeding spiro rod（Generally demihull shape）, its Intermediate gaps are still very big, and the density of raw material is small, therefore also small to the motive force of front material in extrusion die cylinder, extrusion die cylinder Interior pressure is inadequate.So under the effect of above-mentioned composite factor, it may result in when material is extruded from the extrusion cavities of extrusion die cylinder and deposit In difficulty, low production efficiency, and often in the case of material overheat generation coking phenomenon under the rolling of scraper block, cause plastics Granulator cannot be produced normally.

The content of the invention

In view of the deficiencies of the prior art, the purpose of this utility model be to provide it is a kind of to increase turning a millstone for density of material Material mode carries out plastics granulation, suitable for the plastics granulator of sticky strong plastic material.

The utility model is implemented by the following technical programs：

Plastics granulator, including feeding cylinder, feed cylinder and feeding spiro rod, feeding cylinder are connected to the top of feed cylinder, feeding Screw rod is rotated to be arranged in feed cylinder and is driven by main motor, it is characterised in that：The bottom of feed cylinder is equipped with upper lower millstone, up and down Make to relatively rotate between mill to set, abrasive material space, upper millstone are formed between the lower face of upper millstone and the upper surface of lower millstone Lower face there is first conical surface that is inwardly recessed, the upper surface of lower millstone has second conical surface of outwardly convex, first, second The distance that the conical surface mutually leaves mill in the radial direction from it is interior taper into outward and outermost circle in abrasive material space formed it is crowded Outlet, if the first conical surface circumference lays what material in a plurality of upper groove and setting capable person's abrasive material space was promoted toward extrusion direction First group of bar, first group of bar protrude from first conical surface, if the second conical surface circumference lays a plurality of lower groove and sets capable person's abrasive material empty Second group of bar that interior material is promoted toward extrusion direction, second group of bar protrude from second conical surface, and the outboard end of upper and lower groove prolongs Reach extrusion.

The plastics granulator of above-mentioned technical proposal, carries out plastics granulation in a manner of the material of turning a millstone for increasing density of material, is applicable in In the strong plastic material of viscosity, operation principle is：Raw material is sent between upper lower millstone in the abrasive material space formed by feeding spiro rod, due to The low inside and high outside design in abrasive material space, and under the radial direction pusher effect of first, second group of bar, make plastic raw materials in abrasive material space Its density slowly increases in the interior moving process toward extrusion direction, wherein first, second group of bar also acts as the work of stirring raw material With；Upper lower millstone relatively rotates at the same time, carries out that friction generates heat to raw material to melt raw material, wherein the design of upper lower groove increases Add friction area, make to produce bigger frictional heat between raw material and upper lower millstone, melt to accelerate raw material and play agitation material Effect, prevent surface of material hot-spot and produce coking caking, material is swimmingly extruded from extrusion；Due to Material wears into flowable semifluid with being alleviated in abrasive material space, although viscosity high fluidity is poor, the material in back Under the strength of density effect promotes, the material of thawing is still able to swimmingly be extruded from extrusion very much, forms general diameter The interrupted and irregular elongated material for being 3-8cm for 0.6-0.8cm, length, then these elongated material be sent to outside, crushing Under the crushing of machine plastic pellet.

Preferably, the setting direction of upper and lower groove and the radial direction of mill are mutually first, second deflection angle, the First, the direction of the second deflection angle is identical；First, second group article of setting direction and the radial direction of mill are mutually the 3rd, Four deflection angles, the direction of the three, the 4th deflection angles is identical with the direction of first, second deflection angle, turns in upper lower millstone Move to first, second group of bar be mutually aligned when, the distance mutually left between the bottom surface of the first group of bar and the top surface of second group of bar Tapered into outward from interior in the radial direction in mill.Above-mentioned design can play the role of more preferably promoting material and stirring material, It can be more swimmingly extruded beneficial to material from extrusion, improve production efficiency.

Preferably, upper groove has a different length, the upper groove of the different length phase on the circumferencial direction of first conical surface Mutual stagger setting, lower groove have different length, and the lower groove of different length mutually staggers on the circumferencial direction of second conical surface Set.Above-mentioned design makes lower groove more reasonably be configured in disc surface, can be more swimmingly from extrusion beneficial to material Mouth is extruded.

Preferably, the inner tube wall of feed cylinder sets the vertical floor that a plurality of circumference is laid, vertical floor passes through from top to bottom Wear feed cylinder.Above-mentioned design can make in abrasive material space, and extruding air caused by plastic raw materials can be by empty between vertical floor Gap is outwards exhausted in time.

Preferably, upper millstone is fixed on feed cylinder, lower millstone is fixed on feeding spiro rod, between upper lower millstone away from From adjustable.

In conclusion the plastic granulator of the utility model, carries out plastics system in a manner of the material of turning a millstone for increasing density of material Grain, suitable for the granulation production of sticky strong plastic material, compared with prior art, has substantive distinguishing features and progress.

Brief description of the drawings

The utility model has the following drawings：

Fig. 1 is the structure diagram of the utility model,

Graphs of a relation of the Fig. 2 between upper lower millstone,

Fig. 3 is the overlook direction figure of lower millstone in Fig. 2,

Fig. 4 is that upper millstone looks up directional diagram in Fig. 2,

Fig. 5 is the section view of lower groove,

Fig. 6 is the section view of upper groove.

Embodiment

As shown in the figure, the plastics granulator of the utility model, including feeding cylinder 4, feed cylinder 3 and feeding spiro rod 5, feeding cylinder 4 are connected to the top of feed cylinder 3, and feeding spiro rod 5 is rotated to be arranged in feed cylinder 3 and is driven by main motor 11, the top of feeding cylinder 4 Portion is equipped with feeding warehouse 9, and feeding warehouse 9 is equipped with discharge hole, is equipped with movable blade 8 and fixing cutter 7 in feeding warehouse 9, fixing cutter 7 be connected into The side wall of feed bin 9, movable blade 8 are connected on cutterhead, and the lower section of feeding warehouse 9 is equipped with fishback 6, and cutterhead, fishback 6 are fixedly connected In the upper rod end of feeding spiro rod 5, the inner tube wall of feed cylinder 3 sets the vertical floor 10 that a plurality of circumference is laid, vertical floor 10 from On down run through feed cylinder 3.

The bottom of feed cylinder 3 is equipped with upper lower millstone, makees to relatively rotate setting between upper lower millstone, upper millstone 2, which is fixed on, to be sent On barrel 3, lower millstone 1 is fixed on feeding spiro rod 5, and the distance between upper lower millstone is adjustable, the lower face of upper millstone 2 and lower mill Abrasive material space A is formed between the upper surface of disk 1, the lower face of upper millstone 2 has first conical surface 14 being inwardly recessed, lower millstone 1 Upper surface have outwardly convex second conical surface 18, the distance that first, second conical surface mutually leaves in mill in the radial direction Taper into outward from interior and form extrusion 16 in the outermost circle of abrasive material space A, the opening size of extrusion 16 generally sets For 3-5mm, first conical surface, 14 circumference lays 72 upper grooves 15 and sets eight by the past extrusion of material in the A of abrasive material space First group of bar 13 that 16 directions of mouth promote, first group of bar 13 protrude from first conical surface 14, and second conical surface, 18 circumference lays 36 Bar lower groove 17 simultaneously sets six second group of bars 12 for promoting material in the A of abrasive material space toward 16 direction of extrusion, second group of bar 12 protrude from second conical surface 18, and the outboard end of upper and lower groove extends to extrusion.The setting direction of upper and lower groove and mill Radial direction is mutually first, second deflection angle, and the direction of first, second deflection angle is identical, and the first deflection angle is 7-12 Degree（Angle between upper groove outermost circle and upper trench length direction）, the second deflection angle is 7-12 degree（Lower groove outermost circle With the angle between lower groove length direction）, upper groove 15 has three kinds of different lengths, and the upper groove 15 of different length is first Mutual stagger setting on the circumferencial direction of the conical surface 14, lower groove 17 have three kinds of different lengths, and the lower groove 17 of different length exists Mutual stagger setting on the circumferencial direction of second conical surface 18；The setting direction of the first, second group of bar and the radial direction of mill are mutual Into the three, the 4th deflection angles, the direction of the three, the 4th deflection angles is identical with the direction of first, second deflection angle, upper When lower millstone turns to first, second group of bar and is mutually aligned, phase between the bottom surface of first group of bar 13 and the top surface of second group of bar 12 The distance mutually left tapers into outward from interior in the radial direction in mill, and the bottom surface of first group of bar 13 has and first conical surface 14 First inclined plane in same direction, the top surface of second group of bar 12 have the second inclined plane with second conical surface, 18 same direction.

The course of work of the utility model is：The plastic raw materials of demihull shape are broken into small first in feeding warehouse by movable blade Block fragment, then the plastic raw materials of fritter fragment come out from discharge hole, the comb of fishback move it is lower into feeding cylinder, feed cylinder simultaneously It is fed to by feeding spiro rod in the abrasive material space between upper lower millstone, due to the low inside and high outside design in abrasive material space, and first, Under the radial direction pusher effect of two groups of bars, make plastic raw materials slow toward its density in the moving process in extrusion direction in abrasive material space It is slow to increase, wherein first, second group of bar also acts as the effect of stirring raw material；Upper lower millstone relatively rotates at the same time, and raw material is carried out Friction generates heat to melt raw material, wherein the design increase friction area of upper lower groove, makes to produce between raw material and upper lower millstone Raw bigger frictional heat, melts to accelerate raw material and plays the role of agitation material, prevent surface of material hot-spot and produce Coking is lumpd, and material is swimmingly extruded from extrusion；Being worn into being alleviated in abrasive material space due to material to flow Dynamic semifluid, although viscosity high fluidity is poor, in the case where the strength of the density effect of back material promotes, the material of thawing is also Swimmingly to be extruded from extrusion very much, formed general diameter be 0.6-0.8cm, length be the interrupted of 3-8cm and not Regular elongated material, then these elongated material be sent to outside, under the crushing of pulverizer plastic pellet.

Claims

1. plastics granulator, including feeding cylinder, feed cylinder and feeding spiro rod, feeding cylinder is connected to the top of feed cylinder, feeding spiral shell Bar is rotated to be arranged in feed cylinder and is driven by main motor, it is characterised in that：The bottom of feed cylinder is equipped with upper lower millstone, up and down mill Make to relatively rotate between disk to set, abrasive material space is formed between the lower face of upper millstone and the upper surface of lower millstone, upper millstone Lower face has first conical surface being inwardly recessed, and the upper surface of lower millstone has second conical surface of outwardly convex, first, second cone The distance that face is mutually left tapers into and in the outermost circle formation extrusion in abrasive material space outward from interior in the radial direction in mill Mouthful, if the first conical surface circumference lays a plurality of upper groove and sets that material in capable person's abrasive material space promotes toward extrusion direction One group of bar, first group of bar protrude from first conical surface, if the second conical surface circumference lays a plurality of lower groove and sets capable person's abrasive material space Second group of bar that interior material is promoted toward extrusion direction, second group of bar protrude from second conical surface, the outboard end extension of upper and lower groove To extrusion.

2. plastics granulator as claimed in claim 1, it is characterised in that：The setting direction of upper and lower groove and the radial direction of mill Direction is mutually first, second deflection angle, and the direction of first, second deflection angle is identical；The setting direction of first, second group of bar The three, the 4th deflection angles, the direction and first, second deflection of the three, the 4th deflection angles are mutually with the radial direction of mill The direction of angle is identical, when upper lower millstone turns to first, second group of bar and is mutually aligned, the bottom surface of first group of bar with second group The distance mutually left between the top surface of bar tapers into outward from interior in the radial direction in mill.

3. plastics granulator as claimed in claim 2, it is characterised in that：Upper groove has a different length, different length it is upper Groove mutual stagger setting on the circumferencial direction of first conical surface, lower groove have different length, and the lower groove of different length exists Mutual stagger setting on the circumferencial direction of second conical surface.

4. plastics granulator as claimed in claim 1, it is characterised in that：The inner tube wall of feed cylinder sets what a plurality of circumference was laid Vertical floor, vertical floor run through feed cylinder from top to bottom.

5. plastics granulator as claimed in claim 1, it is characterised in that：Upper millstone is fixed on feed cylinder, and lower millstone is fixed In on feeding spiro rod, the distance between upper lower millstone is adjustable.