CN101722586B - Plastic granule forming device - Google Patents
Plastic granule forming device Download PDFInfo
- Publication number
- CN101722586B CN101722586B CN 200810175016 CN200810175016A CN101722586B CN 101722586 B CN101722586 B CN 101722586B CN 200810175016 CN200810175016 CN 200810175016 CN 200810175016 A CN200810175016 A CN 200810175016A CN 101722586 B CN101722586 B CN 101722586B
- Authority
- CN
- China
- Prior art keywords
- cylindrical guide
- plastic
- plastic wire
- die head
- wire
- 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
Images
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an air cooling type plastic granule forming device which enables plastic materials to form granules. The molten plastics extruded from an extruding mechanism (10) by a die head (40) form a plastic filament (50); and after passing through the inner side of a vertical cylindrical guide element (60), the plastic filament (50) is sequentially cut according to a certain length by a cutting machine (90) to form the granules. A refrigerant for air cooling is circulated at the periphery of the plastic filament (50) in the process of passing through the inner side of the cylindrical guide element (60) by a cooling mechanism (100) of the plastic filament in a way of not leaking to the outside air.
Description
Technical field
The present invention relates to a kind of plastic granule forming device, this plastic granule forming device is used for that the plastic wastes such as the tailing that will discharge from forming machine at the plastic injection forming scene, bad formed products are just pulverized at this shaping scene, granulation, make pellet after the melting, recycle in plastic product.
Background technology
All the time, the plastic wastes such as the tailing of discharging from forming machine, bad formed products are pulverized at the plastic injection forming scene, mix with raw material and are reused moulding material in plastic product.
Wherein, in the plastics forming field that is called as so-called stable precision shaping, as mentioned above, if only pulverize plastic waste, then in this comminution of material, mix fine powder and the uneven pulverizing grain of size are arranged, this comminution of material is being directly used in the situation of plastics forming, might hindering the stable precision of above-mentioned plastics to be shaped.
Therefore, in the situation that the stable precision that carries out above-mentioned plastics is shaped, pulverized comminution of material need to be formed device according to a certain size granular pellet.
The granular pellet of this comminution of material is formed device usually make molten plastic pass through die head (die) formation plastic wire (strand) from the extrusion mechanism of hot rotary screw mode, and extrude continuously.The plastic wire of extruding by die head is trimmed and granulating according to certain-length successively by cutting machine.
But as mentioned above, the uncooled plastic wire that is in molten condition of extruding from die head has bonding force, and when directly cutting into a plurality of pellet by cutting machine, these a plurality of pellets cause large granulation because mutually bonding together etc.
Therefore, have the tank of storing cooling water in common pellet formation device, this tank is used for making the plastic wire cooling, the curing that are in molten condition of extruding from die head.Thereby make the plastic wire of extruding from die head by cooling off, solidify in this tank.Then, it is first-class that this cooling, the plastic wire that solidifies are wound on pinch roll, by cutting machine this plastic wire trimmed to carry out granulating successively according to certain-length.
As mentioned above, this normally used pellet forms that device has the extrusion mechanism of large-scale hot rotary screw mode and water-cooled large-scale tank that plastic wire is cooled off etc., and it is large that area is set, and price is high.
Therefore, be not suitable in the narrow plastic injection forming scene of area is set, using.
In addition; above-mentioned normally used water-cooled pellet forms device; in the situation of the material that will this granular plastic waste converts variety classes, different colours to; need be somebody's turn to do the plastic wire that cools off of variety classes, different colours of new conversion again by not only having bothered in the tank that has cooling water etc. but also the adjustment operation of complexity etc., and in this conversion, need very large time and labor.In addition, the middle part of plastic wire because of certain reason in case disconnect, in the cut situation, also need to make this plastic wire again not only to bother but also complicated adjustment operation by waiting in the tank that has cooling water.
And then, above-mentioned normally used pellet forms device, owing to be to make the water-cooling pattern of plastic wire by cooling off, solidify in the tank that has cooling water, so after the plastic wire that will cool off, solidify blocks as pellet, need to carry out dry rear operation to this pellet, correspondingly, it is large that equipment becomes, and price also improves.
On those grounds, above-mentioned normally used water-cooled pellet formation device is unsuitable in the on-the-spot setting of plastics forming and uses.
The device that the air-cooled type of the Unexamined Patent 9-29739 of Japan communique, the JP 2001-88196 of Japan communique, the record of the JP 2002-59419 of Japan communique is arranged as the pellet formation device that solves these difficult points, this device is got rid of the large-scale tank that is used for making plastic wire cooling, curing, utilizes atmosphere to make the plastic wire that is in molten condition of extruding from die head cool off, solidify.
Patent documentation 1: Japanese kokai publication hei 9-29739 communique;
Patent documentation 2: Japanese kokai publication hei 9-193158 communique;
Patent documentation 3: TOHKEMY 2001-88196 communique;
Patent documentation 4: TOHKEMY 2002-59419 communique.
Wherein, the device of Japanese kokai publication hei 9-29739 communique record has following structure: the plastic wire that is in molten condition of extruding by die head from hot rotary screw is directed in groove in guiding, and is directed into sleeve mechanical organ (Bush machaelement) inboard of air-cooled type and is cooled.
Therefore, in this device, as in the 0002nd section record of Japanese kokai publication hei 9-193158 communique, the uncooled plastic wire that is in molten condition is keeping the soft condition that is not cooled after extruding from die head, in guiding with groove, be directed, at this moment, the diameter of the plastic wire that is directed in groove in this guiding becomes inhomogeneous, causes unstable.
In addition, in this device, to sending into air, the cooling effectiveness variation during the cooling plastic silk on every side by the plastic wire that is in molten condition in the inboard process of sleeve mechanical organ, sufficiently cooled, curing that plastic wire does not have is discharged to the situation of sleeve machinery element-external and mostly occur.
Its reason is, most of air of the cooling usefulness of sending into to sleeve mechanical organ inboard can the plastic wire in the inboard process by the sleeve mechanical organ around circulation, and escape to sleeve machinery element-external from upper end open section or the lower ending opening section of the wide opening of sleeve mechanical organ.Another reason is, owing to use the air of normal temperature state to cool off, when atmospheric temperature is high, is absorbed in the state that plastic wire is not sufficiently cooled, solidify.
And then in this device, when will carrying out plastic wire when forming from the low state of die head temperature, the front end of the plastic wire of the uncooled soft condition of extruding from the plastic wire pathway of this die head is attached to die face, and looped-shaped bending.Then, the plastic wire front end of this looped-shaped bending can be not inboard with successfully importing the sleeve mechanical organ in the groove by guiding, and the upper end open section of stopping up the sleeve mechanical organ.Thereby, cause making pellet to form the device continuous running.
The device of TOHKEMY 2001-88196 communique record has following structure: brush air to the plastic wire that is in molten condition of extruding from die head from pressure fan, make the plastic wire cooling, solidify.In an opposite side with pressure fan, across the path of plastic wire and draw and establish woven wire.And, prevent that plastic wire is subject to the blast of the air sent from pressure fan and significantly crooked by this woven wire.
In this device, this most of air from the cooling usefulness that pressure fan is sent touches the uncooled plastic wire that is in soft condition really, but can not circulate around this plastic wire, then leads to the woven wire side away from the part of this plastic wire and causes waste.Therefore, the problem that exists plastic wire efficiently and fully not cooled off, solidify.
Therefore, in this device, need and to set longly from the path that this pressure fan is sent tempering air and the uncooled plastic wire that is in soft condition is passed through, make this plastic wire distance and for a long time cooling.Therefore, this plastic wire that is in soft condition is in the state of looking and hanging down to the die head below, because being subject to the deadweight of this long plastic wire that hangs down, being positioned near the plastic wire of die head and being in by the long state that stretches.Thereby the excessive problem of external diameter that has the plastic wire of extruding from this die head.
In addition, in this device, owing to be the mode that the air by the normal temperature state cools off the plastic wire that is in molten condition, so be subjected to the impact of atmospheric temperature change, and produce the situation that plastic wire is not sufficiently cooled, solidify.
The device of TOHKEMY 2002-59419 communique record in order to prolong the cool time of the plastic wire that is in molten condition, and arranges deflector roll midway at the plastic wire path.And, make the uncooled plastic wire that is in soft condition of extruding from die head around deflector roll, roughly be V word shape apart from cycling through more longways.Thereby spended time utilizes air to make this plastic wire fully cool off, solidify.
In this device, when its entry into service, need to be wound on from the plastic wire that is in molten condition that die head is extruded not only bothering but also complicated adjustment operation of waiting around the deflector roll.In addition, owing to added deflector roll, device is maximized, be not suitable for and getting the on-the-spot device that uses of narrow plastics forming with area constraints is set.
Summary of the invention
The object of the present invention is to provide a kind of air-cooled type plastic granule forming device that can solve problem as above; its be arranged at will with arrange area constraints get narrow plastics forming on-the-spot and with pulverized plastic waste according to a certain size successively granular pellet form device, can make the uncooled plastic wire that is in molten condition extruded from die head efficiently, reliably, cool off fully, solidify.
To achieve these goals, plastic granule forming device of the present invention has: the extrusion mechanism of molten plastic, and it is used for pellet being formed the molten plastic material of usefulness and extruding; Die head, it is used for being directed into the plastic wire pathway from the molten plastic that this extrusion mechanism is extruded and forms plastic wire, and this plastic wire is extruded to vertical lower from plastic wire pathway lower end.Also has cylindrical guide, this cylindrical guide is the cylindrical guide that stands vertically under the plastic wire pathway lower end of this die head, consist of the cooling body of plastic wire, being used for the plastic wire that will extrude from described die head imports from the upper end open section of cylindrical guide, and the inboard by cylindrical guide, afterwards, the lower ending opening section from cylindrical guide discharges.Also have the cutting machine that plastic wire cuts off usefulness, the plastic wire that the cutting machine of this plastic wire cut-out usefulness will be discharged from the lower ending opening section of this cylindrical guide is according to certain-length successively neat cut-out.
The cooling body of described plastic wire, the refrigerant that air cooling is used is sent to the cylindrical guide inboard in the mode that does not leak in the extraneous air from the upper end open section of described cylindrical guide, can not make refrigerant escape to the mode of cylindrical guide outside, circulate around making the plastic wire of refrigerant in the inboard process by this cylindrical guide, afterwards, make refrigerant be discharged to the cylindrical guide outside from the lower ending opening section of this cylindrical guide.
In the plastic granule forming device that consists of like this, the refrigerant that can whole air coolings be used by the cooling body of this plastic wire to be leaking into the mode in the extraneous air, efficiently and positively is sent to the cylindrical guide inboard from the upper end open section of cylindrical guide.And, can make refrigerant that the air cooling that is sent to this cylindrical guide inboard uses almost all not escaping to the mode of cylindrical guide outside, and contact by the plastic wire in the inboard process of the cylindrical guide that does not have the peristomes such as hole at sidewall.And, can make around the plastic wire of refrigerant in inboard process by this cylindrical guide that the air cooling that is sent to this cylindrical guide inboard uses efficiently and positively circulation.And, by the refrigerant of circulation around this plastic wire, can make the plastic wire in the inboard process by cylindrical guide efficiently and positively cool off at short notice, solidify.
In plastic granule forming device of the present invention, preferred described die head makes from the molten plastic branch that described extrusion mechanism is extruded and is directed into a plurality of plastic wire pathways, from a plurality of plastic wire pathways lower end that is connected with these a plurality of plastic wire pathways plastic wire is extruded to vertical lower respectively.
In addition, preferred described cylindrical guide includes a plurality of, described a plurality of cylindrical guide stands vertically respectively under described a plurality of plastic wire pathways lower end, the plastic wire that will be extruded from this plastic wire pathway lower end to vertical lower from its upper end peristome imports, and the inboard by this cylindrical guide, afterwards, be discharged to the cylindrical guide outside from its lower ending opening section.
In the plastic granule forming device that consists of like this, can make from the molten plastic branch that extrusion mechanism is extruded be directed into the die head setting, be not one but plural a plurality of plastic wire pathway.Thereby, can from the plural a plurality of plastic wire pathways lower end that is connected with these a plurality of plastic wire pathways, plastic wire be extruded to vertical lower respectively simultaneously.Thereby, can form simultaneously at short notice many plastic wires that pellet forms usefulness.
In addition, many plastic wires that form simultaneously so at short notice separately can be respectively to be directed into a plurality of cylindrical guide from the upper end open section of a plurality of cylindrical guide that stand vertically respectively under a plurality of plastic wire pathways lower end of die head inboard.Then, the refrigerant that air cooling is used by described cooling body circulates around respectively by the plastic wire of this a plurality of cylindrical guide inboard, can cool off simultaneously, solidify these many plastic wires.The plastic wire that solidifies can form pellet by the cutting machine that plastic wire cuts off usefulness according to certain-length successively neat cut-out.Thereby, can form simultaneously at short notice a plurality of pellets.
In addition, make the molten plastic branch shape of extruding from extrusion mechanism become many plastic wires by die head, by making these many plastic wires inboard by a plurality of cylindrical guide separately respectively, thereby can improve by the cooling body cooling of air-cooled type the respectively efficient by the plastic wire that is in molten condition in this a plurality of cylindrical guide inboard process.Thereby, can efficiently and side by side form at short notice the cooling of pellet formation usefulness, many plastic wires of curing.
In plastic granule forming device of the present invention, the refrigerant that described air cooling is used can be cooling-air, perhaps can be normal temperature air.
Be in the situation of cooling-air at the refrigerant that air cooling is used, compare with normal temperature air, the cooling effectiveness in the time of can really improving by the cooling body cooling by the plastic wire in the inboard process of cylindrical guide.In addition, be in the situation of cooling-air at the refrigerant that air cooling is used, can not be subjected to impact that atmospheric temperature changes and stablize, positively cool off, solidify the plastic wire that passes through in the process of cylindrical guide inboard by cooling body.
In plastic granule forming device of the present invention, preferably in the plastic wire pathway lower end of described die head, be connected with the plastic wire pathway and be provided with the throttle nozzle that plastic wire forms usefulness, the point diameter of this throttle nozzle is less than the internal diameter of described cylindrical guide, the front end of this throttle nozzle with the discontiguous suspension status of cylindrical guide inwall under to be fed to the upper end open section of described cylindrical guide inboard.
In the plastic granule forming device that consists of like this, make the plastic wire that is in molten condition of extruding from die head inboard by the throttle nozzle that plastic wire forms usefulness, this throttle nozzle is communicated with the plastic wire pathway in the plastic wire pathway lower end of die head and arranges, and the external diameter of this plastic wire can be restricted to path to the internal diameter of the throttle nozzle front end less than the internal diameter of cylindrical guide.To import to smoothly the internal diameter cylindrical guide larger than plastic wire inboard without tangling resistance ground from the upper end open section of cylindrical guide for the plastic wire that then, this can be restricted to path.
At this moment, since the front end of throttle nozzle with the discontiguous suspension status of cylindrical guide inwall under to be directed into the upper end open section of cylindrical guide inboard, so the plastic wire that is in molten condition with bonding force of extruding from this throttle nozzle front end is directed into the substantial middle of cylindrical guide inboard smoothly without tangling resistance ground, and can not be attached to the cylindrical guide inwall.
As described above, according to plastic granule forming device of the present invention, can be at short notice efficiently, fully, positively cool off, solidify the plastic wire that is in molten condition of extruding from die head.Thereby, can will form from the molten plastic that extrusion mechanism is extruded a plurality of pellets efficiently at short notice.
In addition, owing to be air-cooled type, so do not need the water-cooled large-scale tank of cooling plastic silk and not only bothered but also the adjustment operation of complicated plastic wire, and can provide a kind of being suitable for to form the on-the-spot plastic granule forming device that uses easily in that the narrow plastics of area are set.
Description of drawings
Fig. 1 is the front section view of plastic granule forming device of the present invention.
Fig. 2 is the upward view at the position with cutting machine of plastic granule forming device of the present invention.
Fig. 3 is the front section view of another plastic granule forming device of the present invention.
The specific embodiment
Then, embodiments of the present invention are described with reference to the accompanying drawings.
Fig. 1 and Fig. 2 represent plastic granule forming device of the present invention preferred embodiment, and Fig. 1 is its front section view, and Fig. 1 is its upward view that is provided with the position of cutting machine.The below describes this plastic granule forming device.
As shown in Figure 1, this plastic granule forming device has the molten plastic extrusion mechanism 10 that pellet is formed the molten plastic material of usefulness and extrudes at an upper portion thereof.
This extrusion mechanism 10 is in columned rotary body 12 lower surfaces carves the longitudinal type structure that is provided with gyrate groove 14, is conducive to make the area that arranges of plastic granule forming device to narrow down.This extrusion mechanism 10 also is used for the emission forming device in No. 3418639 communique record of Japan Patent.
Below rotary body 12, dispose discoid die head 40, and so that die head 40 is in the rotation that does not hinder rotary body 12 and make the gap, upper surface of this die head 40 very littlely almost touch the state of rotary body 12 lower surfaces.And from the molten plastic that the extrusion 19 of rotary body lower surface central authorities continues to be extruded, the introducing ports 42 by arranging in die head 40 central authorities are squeezed into successively the plastic wire pathway 44 that arranges at die head continuously, thereby form continuously plastic wire 50.The plastic wire 50 that is squeezed in the plastic wire pathway 44 and forms continuously, the plastic wire pathway lower end 46 from arranging in die head 40 lower surfaces is expressed into the vertical lower that conforms to the action of gravitation direction continuously.
Under the plastic wire pathway lower end 46 of die head, the cylindrical guide 60 of the cooling body 100 that consists of plastic wire is arranged with the state configuration that stands vertically.Thereby, import the plastic wire that is in molten condition 50 that continues to be extruded from the plastic wire pathway lower end 46 of die head from the upper end open section 62 of this cylindrical guide, by these cylindrical guide 60 interior rear flank, continuously be discharged to cylindrical guide 60 belows from the lower ending opening section 64 of this cylindrical guide at plastic wire 50.
The top and bottom of cylindrical guide 60 are fixedly supported on the device frame 70.Between device frame 70 and die head 40, thermal insulation board 80 is installed.Thereby the heat that prevents electric heater 30 is passed to cylindrical guide 60 via device frame 70.
Have the cutting machine 90 that plastic wire cuts off usefulness in cylindrical guide 60 lower ends, this cutting machine 90 will be discharged to from the lower ending opening section 64 of cylindrical guide the plastic wire 50 of cylindrical guide 60 belows continuously according to certain-length successively neat cut-out.As depicted in figs. 1 and 2, cutting machine 90 is the structure with dead knife 92 and rotating knife 94 combinations.It is roughly discoid that dead knife 92 is, and is fixed on cylindrical guide 60 lower ends.Rotating knife 94 has following structure: be roughly bar-shaped, discoid dead knife 92 lower surfaces are rotated along being roughly centered by its central authorities.Rotating knife 94 is rotated by the speed change electro-motor in device frame 70 inboard configurations.And, be discharged to continuously the plastic wire 50 that is fixed to below 92 by the hole 93 that arranges at the dead knife that is connected with the lower ending opening section 64 of cylindrical guide, by along the rotating knife 94 of dead knife 92 lower surfaces rotations according to certain-length successively neat cut-out.
At this moment, adjust electronic 96 the rotary speed of passing on of speed change, the rotary speed of the rotating knife 94 that will rotate along dead knife 92 lower surfaces is adjusted at a slow speed, is discharged to the velocity of discharge of the plastic wire 50 of dead knife 92 belows by hole 93 with response.Thereby, include the cutting machine 90 of dead knife 92 and rotating knife 94 and be adjusted to desirable certain-length from the length that plastic wire 50 cuts off the pellet that forms by this.
Form in the device at the pellet shown in this Fig. 1 and Fig. 2, as its characteristics, the refrigerant that the cooling body 100 of plastic wire is used air cooling is sent to cylindrical guide 60 inboards in the mode that can not leak in the extraneous air from the upper end open section 62 of cylindrical guide, can not make refrigerant escape to the mode of cylindrical guide outside, make it and contact by the plastic wire 50 in these cylindrical guide 60 inboard processes, and, make refrigerant after circulation around this plastic wire 50, be discharged to cylindrical guide 60 outsides from the lower ending opening section 64 of this cylindrical guide.
Specifically, as shown in Figure 1, supporting device frame upper end (the tube-shaped tube holding plate) 72 of cylindrical guide 60 upper ends, keep air-tightness and be provided with coolant path 76 with the outside of device frame 70 and cylindrical guide 60, the refrigerant introducing port 74 that the refrigerant that this coolant path 76 is used for air cooling is used arranges by the central lower surface in device frame upper end 72 is sent to cylindrical guide 60 inboards in the mode that does not escape in the extraneous air from the upper end open section 62 of cylindrical guide.
As shown in Figure 1, the refrigerant introducing port 74 that arranges in device frame upper end 72 is connecting refrigerant conveying mechanism 110, and the refrigerant (air) that this refrigerant conveying mechanism 110 is used air cooling is sent in the coolant path 76 that arranges in device frame upper end 72 continuously.
Refrigerant conveying mechanism 110 includes Air Blast fan (not shown) and will be sent to from the air refrigerant that this fan is sent the refrigerant lead-in path 112 of refrigerant introducing port 74.Thereby the air (refrigerant) that will cool off usefulness is not escape to mode in the extraneous air by refrigerant lead-in path 112, coolant path 76 and be sent to continuously the upper end open section 62 of cylindrical guide.
The whole perisporium except upper end open section 62 and lower ending opening section 64 of cylindrical guide 60 is the airtight construction that does not have the peristomes such as hole.
Pellet shown in Fig. 1 and Fig. 2 forms device such as above formation, in this pellet formation device, by back-geared electro-motor 16 make rotary body 12 rotations on one side, by electric heater 30 rotary body 12 continuous heatings are arrived desirable temperature on one side.Be transported into the plastic materials 20 such as pulverizing plastic waste in the hopper 18 of rotary body 12 arranged outside, raw material and can continue to be sent to its central authorities around from rotary body 12 lower surfaces along gyrate groove 14 inboards of rotary body lower surface.And, along gyrate groove 14 inboard being continued to the plastic material 20 of the central force feed of rotary body 12 lower surfaces of this rotary body lower surface, heat gradually, continue melting by electric heater 30 through heating cylinder body 32 and rotary body 12.Then, the extrusion 19 that this plastic material 20 is arranged from the central authorities in rotary body 12 lower surfaces by the molten plastic of melt and dissolved state is expressed into below the rotary body 12 continuously successively.
The molten plastic that is expressed into continuously rotary body 12 belows can by the introducing port 42 that arranges in die head central authorities, be squeezed into the plastic wire pathway 44 of die head, and form continuously plastic wire 50 continuously successively.The plastic wire 50 that is squeezed into plastic wire pathway 44 and forms continuously can from the plastic wire pathway lower end 46 of die head lower surface, vertically be expressed into the below of the die head 40 that conforms to the action of gravitation direction continuously.
The uncooled plastic wire 50 that is in molten condition that is continuously extruded from the plastic wire pathway lower end 46 of die head from the upper end open section 62 of cylindrical guide 60 be directed into be disposed at plastic wire pathway lower end 46 under cylindrical guide 60, and by these cylindrical guide 60 inboards.
At this moment, because plastic wire 50 is discharged from plastic wire pathway lower end 46 to the vertical lower that conforms to the Action of Gravity Field direction, so this plastic wire 50 with bonding force can not be attached to cylindrical guide 60 inwalls etc. from the upper end open section 62 of cylindrical guide 60 and import smoothly the substantial middle of cylindrical guide 60 inboards, this cylindrical guide 60 stands vertically configuration under plastic wire pathway lower end 46.
When the plastic wire that is in molten condition 50 of extruding from die head 40 passes through cylindrical guide 60 inboard, drive the Air Blast fan (not shown) of refrigerant conveying mechanism 110, the refrigerant (air) that whole air coolings is used, can not leak into the mode in the extraneous air, by the 72 bubble-tight coolant paths 76 that arrange in device frame upper end, be sent to cylindrical guide 60 inboards from the upper end open section 62 of cylindrical guide.Make refrigerant that this air cooling uses roughly all not escape to the mode of cylindrical guide 60 outsides, positively touch the plastic wire 50 in the process of cylindrical guide 60 inboards by there not being the peristomes such as hole at sidewall, and, can make its circulation around this plastic wire 50.Thereby, can be made by the refrigerant that air cooling is used by the plastic wire that is in molten condition 50 in the process of these cylindrical guide 60 inboards and efficiently and positively cool off, solidify.Cooling, the plastic wire 50 that solidifies can be discharged to continuously from the lower ending opening section 64 of cylindrical guide cylindrical guide 60 belows.
At this moment, can prevent that by thermal insulation board 80 heat of electric heater 30 is delivered to cylindrical guide 60 via device frame 70.And, can prevent that following situation from occuring: because the heat of electric heater 30 causes by the cooling effectiveness decline of the plastic wire 50 in the process of cylindrical guide 60 inboards by cooling body 100 coolings of air-cooled type.
Be discharged to continuously the plastic wire 50 of cylindrical guide 60 belows from the lower ending opening section 64 of cylindrical guide, can by at the cutting machine 90 of cylindrical guide 60 lower ends configuration according to certain-length successively neat cut-out.Thereby, can constantly form a plurality of pellets that the plastic wire with solid state forms according to the neat cut-out of certain-length.
As shown in Figure 1, preferably form in the device at this pellet, die head 40 has a plurality of plastic wire pathways 44 that are branched off into, make from the molten plastic branch that extrusion mechanism 10 is extruded to be sent to a plurality of plastic wire pathways 44, extrude to vertical lower from a plurality of plastic wire pathways lower end 46 of being connected with these a plurality of plastic wire pathways 44 with plastic wire 50.
And as shown in Figure 1, preferred cylindrical guide 60 includes a plurality of cylindrical guide 60, and these a plurality of cylindrical guide 60 stand vertically respectively under the plastic wire pathway lower end 46 of a plurality of plastic wire pathways that are arranged at die head 40.And, many the plastic wires 50 that these a plurality of cylindrical guide 60 will be extruded from this a plurality of plastic wire pathways lower end 46 to the vertical lower respectively upper end open section 62 of the cylindrical guide under the plastic wire pathway lower end 46 import, by these cylindrical guide 60 interior rear flank, be discharged to cylindrical guide 60 belows from the lower ending opening section 64 of this cylindrical guide.
In this case, the molten plastic of extruding from extrusion mechanism 10 can be sent to respectively a plurality of plastic wire pathways 44 that arrange in die head 40 branches.Then, can simultaneously plastic wire 50 be expressed into respectively from a plurality of plastic wire pathways lower end 46 of the die head lower surface that is connected with these a plurality of plastic wire pathways 44 vertical lower of plastic wire pathway lower end 46.Thereby, can form simultaneously at short notice many plastic wires 50 that pellet forms usefulness.
And, can be with many plastic wires 50 that form the simultaneously so at short notice upper end open section 62 from a plurality of cylindrical guide, import to respectively a plurality of cylindrical guide 60 inboards that under a plurality of plastic wire pathways lower end 46 of die head, stand vertically respectively.Then, around the plastic wire 50 of the inboard by these a plurality of cylindrical guide 60 respectively, make the air circulation of the cooling usefulness of sending into from refrigerant conveying mechanism 110, and can make these many plastic wires 50 respectively at short notice efficiently, side by side cool off, solidify.The plastic wire 50 of curing that is discharged to cylindrical guide 60 belows from the lower ending opening section 64 of cylindrical guide according to certain-length successively neat cut-out, and can form pellet by cutting machine 90.Thereby, can efficiently, side by side form at short notice a plurality of pellets.
In addition, make the molten plastic of extruding from extrusion mechanism 10 become many plastic wires 50 by the die head branch shape, and make this many plastic wires 50 respectively separately by a plurality of cylindrical guide 60 inboards, cool off respectively efficient by the plastic wire that is in molten condition 50 in the process of these a plurality of cylindrical guide 60 inboards thereby can improve cooling body 100 by air-cooled type.Thereby, can efficiently, side by side form at short notice the cooling of pellet formation usefulness, many plastic wires 50 of curing.
Form in device at this pellet, to be sent to refrigerant that the air cooling of cylindrical guide 60 inboards uses can not be the air of normal temperature state but be cooled to the cooling-air of zubzero temperature etc. by refrigerant conveying mechanism 110.
And, the refrigerant that can use by this air cooling, be cooling-air, really increase substantially by the cooling effectiveness of cooling body 100 coolings by the plastic wire 50 in the process of cylindrical guide 60 inboards.And, can not be subjected to impact that atmospheric temperature changes and 100 stable by cooling body, positively cooling curing is by the plastic wire 50 in the cylindrical guide 60 inboard processes.
Refrigerant conveying mechanism 110 in this situation can use such as being cooled to from the air that compressor is sent here the ultra-low temperature air generator ultralow temperature state, that be called as vortex tube (Vortex tube) etc.
As shown in Figure 3, in this plastic granule forming device, can be following structure: in the plastic wire pathway lower end 46 of die head, be communicated with plastic wire pathway 44 and the throttle nozzle 120 that the front inner diameter plastic wire less than the internal diameter of cylindrical guide 60 forms usefulness is set.The front end of throttle nozzle 120 with the non-contacting suspension status of cylindrical guide 60 inwalls under import to upper end open section 62 inboards of cylindrical guide.
And, can make the plastic wire that is in molten condition 50 of extruding from die head 40 form the inboard of the throttle nozzle 120 of usefulness by the plastic wires that arrange in this plastic wire pathway lower end 46, and the external diameter of this plastic wire 50 is restricted to path, until be restricted to identical with the internal diameter of throttle nozzle 120 front ends less than the internal diameter of cylindrical guide 60.Thereby the plastic wire 50 that this can be restricted to path can not be tangled and is directed into smoothly internal diameter for than its large cylindrical guide 60 inboards from the upper end open section 62 of cylindrical guide 60.
Meanwhile, the plastic wire that is in molten condition 50 with bonding force of extruding from this die head 40 can be directed into smoothly from throttle nozzle 120 front ends the substantial middle of cylindrical guide 60 inboards without tangling resistance, and can not be attached to cylindrical guide 60 inwalls, wherein, this throttle nozzle 120 with the non-contacting suspension status of cylindrical guide 60 inwalls under be directed to upper end open section 62 inboards of cylindrical guide.
The refrigerant that air cooling is used passes through upper end open section 62 inwalls of cylindrical guide and the gap between the throttle nozzle 120 front end outer walls from refrigerant conveying mechanism 110, be sent to cylindrical guide 60 inboards, wherein, this throttle nozzle 120 is fed to the upper end open section inboard of cylindrical guide under suspension status.
Form in device at this pellet, from use the various plastic materials such as variety classes, different colours, pellet forms experimental result and judges, the internal diameter of cylindrical guide 60 can be 1.5～3.0 times of front inner diameter of throttle nozzle 120, preferably 2.0 times.
Form in the device at this pellet, as shown in Figure 3, also can in the extrusion mechanism 10 of this molten plastic, use above-mentioned hot rotary screw.
Pellet of the present invention forms device can extensively be used in the pellet that forms efficiently the various kinds such as variety classes, different colours arranging that the narrow plastics of area form on-the-spot not spended time.
Claims (7)
1. plastic granule forming device is characterized in that having:
The extrusion mechanism of molten plastic, it is used for pellet being formed the molten plastic material of usefulness and extruding;
Die head, it is used for being directed into the plastic wire pathway from the molten plastic that this extrusion mechanism is extruded and forms plastic wire, and this plastic wire is extruded from plastic wire pathway lower end to vertical lower;
Cylindrical guide, it is the cylindrical guide that stands vertically under the plastic wire pathway lower end of this die head, consist of the cooling body of plastic wire, being used for the plastic wire that will extrude from described die head imports from the upper end open section of cylindrical guide, and the inboard by cylindrical guide, afterwards, the lower ending opening section from cylindrical guide discharges;
Plastic wire cuts off the cutting machine of usefulness, and its plastic wire that will discharge from the lower ending opening section of this cylindrical guide is according to certain-length successively neat cut-out,
The cooling body of described plastic wire, the refrigerant that air cooling is used is sent to the cylindrical guide inboard in the mode that does not leak in the extraneous air from the upper end open section of described cylindrical guide, can not make refrigerant escape to the mode of cylindrical guide outside, circulate around making the plastic wire of refrigerant in the inboard process by this cylindrical guide, afterwards, make refrigerant be discharged to the cylindrical guide outside from the lower ending opening section of this cylindrical guide.
2. plastic granule forming device as claimed in claim 1 is characterized in that,
Described die head makes from the molten plastic branch that described extrusion mechanism is extruded and imports to a plurality of plastic wire pathways, from a plurality of plastic wire pathways lower end that is connected with these a plurality of plastic wire pathways plastic wire extruded to vertical lower respectively,
Described cylindrical guide includes a plurality of, described a plurality of cylindrical guide stands vertically respectively under described a plurality of plastic wire pathways lower end, the plastic wire that will be extruded from this plastic wire pathway lower end to vertical lower from its upper end peristome imports, and the inboard by this cylindrical guide, afterwards, be discharged to the cylindrical guide outside from its lower ending opening section.
3. plastic granule forming device as claimed in claim 1 is characterized in that,
The refrigerant that described air cooling is used is cooling-air.
4. plastic granule forming device as claimed in claim 1 is characterized in that,
The refrigerant that described air cooling is used is normal temperature air.
5. plastic granule forming device as claimed in claim 1 is characterized in that,
Plastic wire pathway lower end at described die head, be connected with the plastic wire pathway and be provided with the throttle nozzle that plastic wire forms usefulness, the point diameter of this throttle nozzle is less than the internal diameter of described cylindrical guide, the front end of this throttle nozzle with the discontiguous suspension status of cylindrical guide inwall under to be fed to the upper end open section of described cylindrical guide inboard.
6. plastic granule forming device as claimed in claim 5 is characterized in that,
The internal diameter of described cylindrical guide is 1.5～3.0 times of front inner diameter of described throttle nozzle.
7. plastic granule forming device as claimed in claim 6 is characterized in that,
The internal diameter of described cylindrical guide is 2.0 times of front inner diameter of described throttle nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810175016 CN101722586B (en) | 2008-10-24 | 2008-10-24 | Plastic granule forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810175016 CN101722586B (en) | 2008-10-24 | 2008-10-24 | Plastic granule forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101722586A CN101722586A (en) | 2010-06-09 |
| CN101722586B true CN101722586B (en) | 2013-03-06 |
Family
ID=42444422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810175016 Active CN101722586B (en) | 2008-10-24 | 2008-10-24 | Plastic granule forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101722586B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182490A (en) * | 2016-07-12 | 2016-12-07 | 广州傲胜人造草股份有限公司 | A kind of manufacture device of chinampa hollow particle |
| AT522427B1 (en) * | 2019-04-11 | 2022-07-15 | Erema Eng Recycling Maschinen & Anlagen Gmbh | air granulation |
| CN112757599A (en) * | 2020-01-16 | 2021-05-07 | 阳泉煤业（集团）有限责任公司 | Extrusion molding cuts grain device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303166A2 (en) * | 1987-08-11 | 1989-02-15 | Günter Hartig | Cooling apparatus for plastic strands |
| CN101138870A (en) * | 2007-07-18 | 2008-03-12 | 成都中孚高分子工程有限公司 | Machine for cutting material into granules for the strip-lashing and granulating of the plastic extrusion machine |
-
2008
- 2008-10-24 CN CN 200810175016 patent/CN101722586B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303166A2 (en) * | 1987-08-11 | 1989-02-15 | Günter Hartig | Cooling apparatus for plastic strands |
| CN101138870A (en) * | 2007-07-18 | 2008-03-12 | 成都中孚高分子工程有限公司 | Machine for cutting material into granules for the strip-lashing and granulating of the plastic extrusion machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-29739A 1997.02.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101722586A (en) | 2010-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ITMI20000586A1 (en) | SUBMERSIBLE GRANULATOR AND PROCEDURE FOR THE GRANULATION OF THERMOPLASTIC MATERIALS | |
| CN109333862A (en) | A kind of anticlogging plastic granulator discharging device | |
| CN212242034U (en) | Insulation extrusion device for high-voltage overhead insulated cable | |
| CN101722586B (en) | Plastic granule forming device | |
| CN108312540B (en) | Vertical 3D prints waste recovery device | |
| CN212400015U (en) | Polypropylene modified microparticle granulation line | |
| CN212528327U (en) | Plastic granules extruder convenient to ejection of compact | |
| JP4824003B2 (en) | Plastic pellet forming equipment | |
| CN110625902B (en) | Secondary heating's energy-conserving injection moulding penetrates gluey equipment | |
| KR100984493B1 (en) | Plastic pellet forming apparatus | |
| CN211165209U (en) | Blow molding equipment for CPP film packaging material | |
| CN209832529U (en) | Screw extruder of PLA film production | |
| CN218147078U (en) | Air cooling device for spinning | |
| CN105437406A (en) | Plastic granule production unit | |
| US7648358B1 (en) | Plastic pellet forming apparatus | |
| CN209882967U (en) | A granular feed cutting machine for feed processing | |
| CN208324153U (en) | For processing the two steps type extruder of waste plastic film | |
| CN208529475U (en) | A kind of illusion-colour PVC film pelletizer | |
| CN111251499A (en) | Polypropylene modified microparticle granulation line | |
| CN214111457U (en) | Environment-friendly plastic bag film blowing equipment | |
| CN212978870U (en) | Granulation equipment for plastic particles | |
| CN209971493U (en) | Temperature adjusting device of polylactic acid straw extruder and extruder | |
| CN220052806U (en) | Continuous extrusion equipment for foaming polylactic acid material | |
| CN214026561U (en) | Novel screw extruder | |
| CN214645678U (en) | Plastic extruder for cable processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |