CN110625846A

CN110625846A - Granulating process for automatic molding of molten plastic foam

Info

Publication number: CN110625846A
Application number: CN201911040531.2A
Authority: CN
Inventors: 祝磊; 潘长霞
Original assignee: Lu'an Zhenghui Youchan Electromechanical Technology Co Ltd
Current assignee: Lu'an Zhenghui Youchan Electromechanical Technology Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2019-12-31

Abstract

The invention discloses a granulation process for automatically molding molten plastic foam, which comprises the following steps: the plastic fragments are heated by the melting conveying device to be molten and then conveyed into the rotary die forming device; the molten plastic flows into the second die hole through the feeding nozzle, the feeding groove and the die hole, the plastic is gradually converted into a soft solid state from the molten state while approaching the second die hole, meanwhile, the intermittent rotating mechanism enables the second die component to perform unidirectional periodic intermittent rotation, so that the soft solid plastic is broken into granules, the soft solid plastic granules are repeatedly stacked in the second die hole step by step and are finally pushed into the cooling forming area, and the soft solid plastic granules are cooled by water in the second die hole and the cooling forming area to form solid granules and are discharged through the discharging nozzle together with the water; the plastic particles and water flow into the water separation output device together, and the water separation output device separates water from the plastic particles and outputs the plastic particles after the surface water is dried by air.

Description

Granulating process for automatic molding of molten plastic foam

Technical Field

The invention relates to the field of plastic processing, in particular to a process for carrying out particle forming processing on waste plastic.

Background

The working principle of plastic granulation is that after molten plastic is extruded by a screw extruder to be in a strip shape or a belt shape, the molten plastic is cut into granules by a cutting device, wherein the extrusion form can be divided into hot cutting and cold cutting, the hot cutting refers to a method for granulating materials in a molten or semi-molten state after being extruded from a die hole of a machine head, the cold cutting refers to a method for granulating the materials after being extruded from the die hole of the machine head and drawn into a strip shape after being cooled in a water tank, the quality of granulation is influenced because the cooling effect of the existing plastic granulation cannot be controlled, and meanwhile, the problem that plastic granules are easy to be adhered exists, and the particle size of the produced plastic granules is not uniform, therefore, the invention needs to provide a device for carrying out particle forming processing on the plastic, and can filter impurities such as stones and the like contained in the molten plastic during the process of melting plastic fragments, thereby ensuring the quality of the formed plastic granules, the device is also prevented from being adversely affected by impurities such as stones, in the particle forming process, the molten plastic can automatically complete the processing of particle cutting forming and cooling to be solid granular output in the rotary die, the subsequent cutting through devices such as a cutting machine is not needed, the device is more convenient and the efficiency is greatly improved.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide a process for carrying out particle forming processing on waste plastics, which can filter impurities such as stones contained in molten plastics in the melting process of plastic fragments, thereby not only ensuring the quality of the formed plastic particles, but also avoiding the adverse effect of the impurities such as the stones on the equipment.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

A granulation process for the automatic forming of plastic foam in the molten state, comprising the steps of:

s1: workers transport and dump the plastic fragments into a melting and conveying device by manual work or the existing mechanical technology, and the melting and conveying device sequentially heats and melts the plastic fragments, filters impurities and conveys the molten plastic into a rotary die forming device;

s2: the rotary die forming device receives the molten plastic and carries out particle forming, cooling and outputting treatment on the molten plastic;

the rotary die forming device comprises a rotary die forming mechanism, an intermittent rotating mechanism and a water inlet mechanism, wherein the rotary die forming mechanism comprises a fixed shell, a first die component and a second die component, the fixed shell is a cylindrical shell structure with openings at two ends, the fixed shell is fixed on the mounting frame body, the axial direction of the fixed shell and the conveying direction of the molten plastic conveyed to the rotary die forming device by the molten conveying device are coaxially arranged, and the bottom of the fixed shell is provided with a discharging nozzle communicated with the inner cavity of the fixed shell;

the second die component comprises a die shaft, a second die body and a fixed block, the die shaft and the fixed shell are coaxially arranged, the die shaft is positioned on one side of the fixed shell, which is far away from the melting conveying device, a supporting bracket is arranged between the die shaft and the mounting frame body, the supporting bracket is fixed on the mounting machine body, the die shaft is mounted on the supporting bracket through a bearing, the second die body is of a cylindrical structure, the second die body is coaxially positioned in the fixed shell, the second die body is also coaxially and fixedly connected with the die shaft, the end surface of the second die body, which faces the melting conveying device, is coaxially provided with a mounting groove in a circular groove structure, the outer circular surface of the second die body is also provided with a die hole II which is communicated with the mounting groove, the die hole II is provided with a plurality of groups in an array along the circumferential direction of the second die body, the fixed block is positioned on one side of the second die body, which is far away from the melting conveying device, the fixed block is also fixedly connected with the second die body in a sealing way;

the area between the outer circular surface of the second die body and the shell wall of the fixed shell is a cooling forming area of the rotary die forming mechanism, a second closed end cover for sealing the second die member and the fixed shell is arranged between the second die member and the opening of the fixed shell deviating from the melting and conveying device in a matching manner, a water inlet channel network is arranged among the die shaft, the fixed block and the second die body and used for receiving cooling water provided by the water inlet mechanism and conveying the water to the second die hole and the cooling forming area;

the first die component comprises a first die body, the first die body is of a cylindrical structure, the first die body is coaxially positioned in a mounting groove of the second die body, a supporting bulge of a cylindrical bulge structure is coaxially arranged on the end surface of the first die body facing the bottom of the mounting groove, a supporting groove is coaxially arranged at the bottom of the mounting groove, the free end of the supporting bulge is coaxially positioned in the supporting groove and does not interfere with the supporting groove, the outer circular surface of the first die body is in close contact with the groove wall of the mounting groove, a feeding groove is coaxially arranged on the end surface of the first die body facing a melting conveying device, a feeding nozzle is installed at the notch of the feeding groove in a matching manner, the free end of the feeding nozzle is communicated with the melting conveying device, a first die hole communicated with the feeding groove is further formed in the outer circular surface of the first die body, the first die hole is communicated with the second die hole, and a plurality of groups of the first die holes are correspondingly arrayed along the circumferential;

a first closed end cover used for sealing the first die member and the fixed shell is arranged between the first die member and the opening of the fixed shell facing the melting conveying device, and the first die body is fixedly connected with the first closed end cover;

the molten plastic flows to the first die hole through the feeding nozzle and the feeding groove, then flows to the second die hole, in the process, water flows to the second die hole and the cooling forming area through the water inlet mechanism and the water inlet channel network of the second die component, so that the molten plastic is gradually converted into a soft solid state when approaching the second die hole, when the size of the soft solid plastic entering the second die hole meets the requirement, the intermittent rotating mechanism drives the second die component to rotate, the rotation of the second die component can break the soft solid plastic into granules due to the static state of the first die component, and the rotation of the second die component is unidirectional periodic intermittent rotation, so that the process is repeated in such a reciprocating way, the soft solid plastic granules can be gradually and orderly accumulated in the second die hole and finally can be pushed into the cooling forming area, the soft solid plastic particles are cooled by water in the second die hole and the cooling forming area to form solid particles, and then the solid particle plastic is discharged through a discharge nozzle along with the water;

in addition, when the punch forming device is started for the first time, when molten plastic is conveyed in the two-way cooling forming area through the feeding nozzle, the feeding groove, the first die hole and the second die hole, water flows into the second die hole and the cooling forming area through the water inlet mechanism and the water inlet channel network of the second die member, so that solid plastic discharged along with water at the beginning is irregular, and after a period of time, the solid plastic discharged along with water is solid granular plastic;

s3: the mixture of the solid granular plastic and the water finally flows into a water separation output device communicated with the discharge nozzle, the water separation output device outputs the plastic granules after carrying out water separation treatment on the mixture, and the water separation output device can also carry out surface moisture air drying treatment on the plastic granules in the output process of the plastic granules.

The technical scheme is further improved and optimized.

The melting and conveying device comprises a melting mechanism, an impurity filtering mechanism, a conveying mechanism and a driving mechanism, wherein the melting mechanism is used for heating and melting plastic fragments, the impurity filtering mechanism is used for filtering impurities of molten plastic, the conveying mechanism is used for conveying the molten plastic into the rotary die forming device, and the driving mechanism is used for providing power for the operation of the impurity filtering mechanism and the conveying mechanism;

the melting mechanism comprises a melting tank body with an upper end opening and a lower end being closed and fixed on the mounting frame body, and a melting heating element fixed outside the melting tank body and used for providing heating power for melting plastic fragments, wherein the closed end of the melting tank body is coaxially provided with a fixed pipeline communicated with an inner cavity of the melting tank body, and the open end of the melting tank body is provided with a melting end cover in a matching manner.

The technical scheme is further improved and optimized.

The impurity filtering mechanism is arranged below the melting mechanism and comprises a filtering pipeline, a connecting pipeline, an auger and a storage disc, wherein the filtering pipeline consists of two parts which are respectively a vertical section and an inclined section, the vertical section is vertically fixed on the mounting frame body, the top end of the vertical section is connected and communicated with the fixed pipeline, the inclined section is obliquely fixed on the mounting frame body, the inclined section and the vertical section are communicated with each other and are arranged in a cross way, a filtering plate is arranged at the position where the vertical section is communicated with the inclined section and is used for filtering impurities such as stones and the like from molten plastic, and a lower pipe orifice of the inclined section is matched with and provided with a fixed end cover;

the connecting pipeline is obliquely fixed on the mounting frame body, the oblique direction of the connecting pipeline and the oblique direction of the oblique section of the filtering pipeline are positioned on the same straight line, the lower pipe orifice of the connecting pipeline is communicated with the upper pipe orifice of the oblique section of the filtering pipeline, and the upper pipe orifice of the connecting pipeline is matched with the mounting end cover;

the device comprises a filter pipeline, a mounting end cover, a spiral surface and a plurality of groups of avoidance holes, wherein the mounting end cover is arranged at the lower end of the filter pipeline, the spiral surface is provided with a plurality of groups of avoidance holes at uniform intervals, and the avoidance holes are used for avoiding conveying molten plastic away in the process of rotating the spiral and conveying impurities such as stones and the like;

the outside of connecting tube still be provided with the ejection of compact mouth of being connected the switch-on rather than the inner chamber, the ejection of compact mouth is located connecting tube under and the ejection of compact mouth still is close to connecting tube's last mouth of pipe, storage disc horizontal fixation in on the installation support body and it still is located the ejection of compact mouth under.

The technical scheme is further improved and optimized.

The conveying mechanism is positioned below the impurity filtering mechanism and comprises a conveying pipeline and a pushing screw rod, the conveying pipeline is horizontally fixed on the mounting frame body, a connecting nozzle communicated with the inner cavity of the conveying pipeline is arranged outside the conveying pipeline, the connecting nozzle is positioned right above the conveying pipeline, and the connecting nozzle is communicated with the lower pipe orifice of the vertical section of the filtering pipeline;

a connecting bracket is arranged at one pipe orifice of the conveying pipeline, the pipe orifice is also connected and communicated with a material conveying joint, and a sealing end cover is arranged at the other pipe orifice of the conveying pipeline and is coaxially provided with an extending hole;

the pushing screw rod and the conveying pipeline are coaxially arranged, one end of the pushing screw rod is movably connected with the connecting support, the other end of the pushing screw rod penetrates through an extending hole formed in the sealing end cover and is movably connected with the mounting frame body, and the pushing screw rod can axially rotate around the pushing screw rod;

and a heat-insulating heating element used for insulating the molten plastic in the conveying pipeline and keeping the molten plastic in the conveying pipeline all the time is arranged outside the conveying pipeline in a matching manner.

The technical scheme is further improved and optimized.

The driving mechanism comprises a driving motor, the driving motor is horizontally fixed on the installation frame body, the axial direction of an output shaft of the driving motor is parallel to the axial direction of the pushing screw rod, a first power transmission piece is arranged between the power output end of the driving motor and the power input end of the pushing screw rod, power connection transmission is carried out between the power output end of the driving motor and the power input end of the pushing screw rod through the first power transmission piece, a second power transmission piece is arranged between the power input end of the pushing screw rod and the power input end of the packing auger, power connection transmission is carried out between the power input end of the pushing screw rod and the packing auger through the second power transmission piece, the first power transmission piece is of a belt transmission power transmission structure.

The technical scheme is further improved and optimized.

The fixed shell and the conveying pipeline are coaxially arranged;

the end face, away from the conveying mechanism, of the die shaft is provided with a water inlet groove, the end face is provided with a sealing sleeve head in a matching mode, the outer circular face of the die shaft is provided with a first water inlet hole and a second water inlet hole, the first water inlet hole is communicated with the water inlet groove, the first water inlet hole is close to the sealing sleeve head, the first water inlet hole is arranged in a plurality of groups in an array mode along the circumferential direction of the die shaft, the second water inlet hole is close to the second die body, and the second water inlet hole is arranged in a plurality of groups in an array mode;

the end face, facing the second die body, of the fixing block is coaxially provided with a first water inlet ring groove, the fixing block is also provided with a connecting hole for connecting and communicating the first water inlet ring groove and the second water inlet hole, and the connecting hole is correspondingly provided with a plurality of groups;

the end face, facing the fixed block, of the second die body is coaxially provided with a second water inlet ring groove connected and communicated with the water inlet ring groove, the second die body is also provided with a second through hole used for connecting and communicating the second water inlet ring groove and the second die hole, and the through holes are correspondingly provided with a plurality of groups;

the water inlet hole I, the water inlet groove, the water inlet hole II, the connecting hole, the water inlet ring groove I, the water inlet ring groove II and the connecting hole form a water inlet channel net of the second die component.

The technical scheme is further improved and optimized.

The cooling shaping district of rotary die forming mechanism in be provided with unloading spare, unloading spare is including solid fixed ring, stripper, gu fixed ring is coaxial to be fixed in the outside of the second mould body, on the stripper was fixed in solid fixed ring's anchor ring, the big face of stripper was on a parallel with solid fixed ring's axial, the stripper still was located and is the contained angle directly over the mould hole two and between stripper and the mould hole and arranges, the stripper correspondence is provided with a plurality of groups.

The technical scheme is further improved and optimized.

The water inlet mechanism comprises a water inlet pipeline and a rotary joint, the rotary joint is of a cylindrical structure with two open ends and built-in steps, the rotary joint is coaxially and movably sleeved outside the part of the die shaft provided with the water inlet hole I, the inner cavity of the rotary joint is communicated with the water inlet hole I, the rotary joint and the die shaft are not interfered with each other, and sealing rings are arranged between the two open ends of the rotary joint and the die shaft in a matched manner;

one end of the water inlet pipeline is connected with the rotary joint, and the other end of the water inlet pipeline is connected with the cooling water supply system.

The technical scheme is further improved and optimized.

The intermittent rotating mechanism comprises a rotating motor, a sheave member and a driving plate member, the sheave member comprises a driven sheave which is coaxially fixed outside the die shaft, a plurality of groups of concave locking arcs are arrayed on the outer circumferential surface of the driven sheave along the circumferential direction of the outer circumferential surface of the driven sheave, a radial groove is arranged between every two adjacent groups of concave locking arcs, the radial groove penetrates through the axial thickness of the driven sheave, and the guiding direction of the radial groove is parallel to the diameter direction of the driven sheave at the point;

the driving plate part comprises a driving plate shaft, an active driving plate and a cylindrical pin, wherein the axial direction of the driving plate shaft is parallel to the axial direction of the die shaft, the driving plate shaft is movably arranged on the support bracket and can rotate around the axial direction of the driving plate shaft, the active driving plate is coaxially fixed outside the driving plate shaft, a convex locking arc matched with the concave locking arc is arranged on the active driving plate, and the cylindrical pin is eccentrically arranged on the active driving plate and matched with the radial groove;

the axial direction of an output shaft of the rotating motor is parallel to the axial direction of the die shaft, the rotating motor is fixed on the mounting frame body, a third power transmission piece is arranged between the power output end of the rotating motor and the dial plate shaft, power is connected and transmitted between the third power transmission piece and the dial plate shaft through the third power transmission piece, and the third power transmission piece is of a belt transmission power transmission structure.

The technical scheme is further improved and optimized.

The water separation output device comprises an output mechanism, a power connection mechanism and a water receiving pool, wherein the output mechanism is used for receiving a mixture of plastic particles and water output by the rotary die forming mechanism and separating the mixture to output force, the power connection mechanism is used for power connection between the output mechanism and the dial plate shaft, and the water receiving pool is used for receiving water separated and discharged by the output mechanism;

the output mechanism comprises a separation rotary drum, a material receiving pipeline and a material discharging pipeline, the separation rotary drum is of a cylindrical structure which is axially parallel to the axial direction of the die shaft and has openings at two ends, the separation rotary drum is movably arranged on the mounting frame body and can rotate around the axial direction of the separation rotary drum, and a plurality of groups of filtering holes are uniformly arranged on the outer circular surface of the separation rotary drum at intervals;

the material receiving pipeline is obliquely arranged, the highest end of the material receiving pipeline is fixedly connected and communicated with the discharging nozzle, the lowest end of the material receiving pipeline penetrates through one opening end of the separation rotary drum and extends into the separation rotary drum, and the other opening end of the separation rotary drum is provided with a fan in a matched mode;

a guide plate is obliquely fixed in the separation rotary drum, the highest point of the guide plate faces the material receiving pipeline, the lowest point of the guide plate faces the fan, the guide plate is arranged in an axial array of the separation rotary drum and is provided with a plurality of groups, and the groups of guide plates are distributed in a stepped manner;

the separation drum is provided with an opening end of the fan and a discharging sleeve in a bearing installation mode, the discharging pipeline is obliquely arranged, and the highest end of the discharging pipeline is communicated with the discharging sleeve;

the power connecting mechanism comprises a transmission shaft, the transmission shaft is coaxially and fixedly connected with the dial plate shaft, a power connecting piece is arranged between the transmission shaft and the separating rotary drum and forms power connection transmission between the transmission shaft and the separating rotary drum, and the power connecting piece is of a V-belt transmission structure;

the water receiving tank is fixed on the mounting frame body and is also positioned under the separation rotary drum, the bottom of the water receiving tank is connected and communicated with a water outlet pipeline, and the water outlet pipeline is connected and communicated with a cooling water supply system.

Compared with the prior art, the invention has the beneficial effects that plastic fragments are melted and particles are formed in sequence, in the melting process, the filter plate is adopted to filter impurities such as stones and the like in molten plastic, so that the quality of the formed plastic particles is ensured, and the adverse effect of the impurities such as the stones and the like on the equipment is avoided; in the particle forming process, the rotary die is used as the die body, and the molten plastic can automatically complete the processing of particle cutting forming and cooling to be solid granular output in the rotary die, so that subsequent cutting by devices such as a cutting machine is not needed, the operation is more convenient and the efficiency is greatly improved; in the process of outputting the solid granular plastic, the water separation device can carry out water filtration and surface moisture air drying treatment on the plastic granules, so that the subsequent storage of the plastic granules is facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the melt conveying apparatus of the present invention.

Fig. 3 is a schematic structural view of the melting mechanism of the present invention.

Fig. 4 is a schematic diagram of the combination of the impurity filtering mechanism and the conveying mechanism of the present invention.

Fig. 5 is a schematic structural view of a foreign substance filtering mechanism of the present invention.

Fig. 6 is a cross-sectional fit of a filter conduit of the present invention.

Fig. 7 is a cross-sectional view of the impurity filtering means of the present invention.

Fig. 8 is a schematic structural view of the conveying mechanism of the present invention.

Fig. 9 is a schematic structural diagram of the driving mechanism of the present invention.

Fig. 10 is a schematic diagram of the rotary die forming device and the water separation output device of the present invention.

Fig. 11 is a schematic diagram of the rotary die forming device and the water separation output device of the present invention.

Fig. 12 is a schematic structural view of a rotary die forming apparatus according to the present invention.

Fig. 13 is a schematic structural view of the rotary die forming mechanism of the present invention.

Fig. 14 is a schematic diagram of the internal components of the rotary die forming mechanism of the present invention.

Fig. 15 is a schematic view of the internal structure of the rotary die forming mechanism of the present invention.

FIG. 16 is a schematic view of the mating of the first mold member and the second mold member of the present invention.

FIG. 17 is a cross-sectional mating view of the first mold member of the present invention.

Fig. 18 is a schematic view of the mating of the internal components of the second mold member of the present invention.

FIG. 19 is a cross-sectional mating view of a second mold member of the invention.

FIG. 20 is a schematic cross-sectional view of a mold shaft and a retaining block of the present invention.

FIG. 21 is a schematic cross-sectional view of a mold shaft and a second mold body of the present invention.

FIG. 22 is a schematic view of the mold shaft and water inlet mechanism of the present invention.

Fig. 23 is a schematic structural view of an intermittent rotation mechanism of the present invention.

Fig. 24 is a schematic view of the engagement of the sheave element and the dial element of the present invention.

Fig. 25 is a schematic structural view of the water separation output device of the present invention.

Fig. 26 is a schematic structural view of the water receiving tank of the present invention.

FIG. 27 is a schematic view of the output mechanism of the present invention mated to a power coupling mechanism.

FIG. 28 is a schematic cross-sectional view of a separation drum of the present invention.

Detailed Description

s1: workers transport and dump the plastic fragments into the melting and conveying device 100 by manual work or the existing mechanical technology, and the melting and conveying device 100 sequentially heats and melts the plastic fragments, filters impurities and conveys the molten plastic into the rotary die forming device 200;

s2: the rotary die forming device 200 receives the molten plastic and carries out particle forming, cooling and outputting treatment on the molten plastic;

the rotary die forming device 200 comprises a rotary die forming mechanism 210, an intermittent rotating mechanism 220 and a water inlet mechanism 230, wherein the rotary die forming mechanism 210 comprises a fixed shell 211, a first die component and a second die component, the fixed shell 211 is a cylindrical shell structure with two open ends, the fixed shell 211 is fixed on a mounting frame body, the axial direction of the fixed shell 211 and the conveying direction of molten plastic conveyed to the rotary die forming device 200 by the melting conveying device 100 are coaxially arranged, and the bottom of the fixed shell 211 is provided with a discharge nozzle 2113 communicated with the inner cavity of the fixed shell;

the second mold member comprises a mold shaft 212, a second mold body 213 and a fixed block 214, the mold shaft 212 and the fixed housing 211 are coaxially arranged, the mold shaft 212 is positioned on one side of the fixed housing 211, which is far away from the melting and conveying device 100, a support bracket is arranged between the mold shaft 212 and the mounting bracket body, the support bracket is fixed on the mounting body, the mold shaft 212 is mounted on the support bracket through a bearing, the second mold body 213 is of a cylindrical structure, the second mold body 213 is coaxially positioned in the fixed housing 211, the second mold body 213 is also coaxially and fixedly connected with the mold shaft 212, an end surface of the second mold body 213, which faces the melting and conveying device 100, is coaxially provided with a mounting groove 2134 which is of a circular groove structure, the outer circular surface of the second mold body 213 is also provided with a mold hole second 2132 which is communicated with the mounting groove 2134, and the mold hole second 2132 is provided with a plurality of groups in an array along the circumferential direction of, the fixed block 214 is positioned on one side of the second mold body 213, which is far away from the melting and conveying device 100, the fixed block 214 is of a cylindrical structure, the fixed block 214 is coaxially fixed outside the mold shaft 212, and the fixed block 214 is further fixedly connected with the second mold body 213 in a sealing manner;

the area between the outer circular surface of the second mold body 213 and the shell wall of the fixed shell 211 is a cooling molding area of the rotary mold molding mechanism 210, a second closed end cover 2112 for sealing between the second mold member and an opening of the fixed shell 211 departing from the melting and conveying device 100 is arranged between the second mold member and the opening of the fixed shell 211, a water inlet channel network is arranged among the mold shaft 212, the fixed block 214 and the second mold body 213, and the water inlet channel network is used for receiving cooling water provided by the water inlet mechanism 230 and conveying the water to the second mold hole 2132 and the cooling molding area;

the first die component comprises a first die body 216, the first die body 216 is of a cylindrical structure, the first die body 216 is coaxially positioned in a mounting groove 2134 of a second die body 213, a supporting protrusion 2163 which is of a cylindrical protrusion structure is coaxially arranged on the end surface of the first die body 216 facing to the bottom of the mounting groove 2134, a supporting groove is coaxially arranged on the bottom of the mounting groove 2134, the free end of the supporting protrusion 2163 is coaxially positioned in the supporting groove and does not interfere with the supporting groove, the outer circular surface of the first die body 216 is tightly contacted with the groove wall of the mounting groove 2134, a feeding groove 2161 is coaxially arranged on the end surface of the first die body 216 facing to the melting conveying device 100, a feeding nozzle 217 is arranged at the notch of the feeding groove 2161 in a matching manner, the free end of the feeding nozzle 217 is communicated with the melting conveying device 100, a first die hole 2162 which is communicated with the feeding groove 2161 is further arranged on the outer circular surface of the first die body 216, the first die hole 2162 is also communicated, the first die holes 2162 are correspondingly arrayed in a plurality of groups along the circumferential direction of the first die body 216;

a first end cover 2111 for sealing between the first mold member and the opening of the fixed shell 211 facing the melt conveying device 100 is arranged between the first mold member and the opening, and the first mold body 216 is fixedly connected with the first end cover 2111;

the molten plastic flows to the first mold hole 2162 through the feeding nozzle 217 and the feeding groove 2161, and then flows to the second mold hole 2132, in the process, water flows into the second mold hole 2132 and the cooling molding area through the water inlet mechanism 230 and the water inlet channel network of the second mold member, so that the molten plastic is gradually converted into a soft solid state while approaching the second mold hole 2132, when the size of the soft solid plastic entering the second mold hole 2132 reaches the requirement, the intermittent rotation mechanism 220 drives the second mold member to rotate, because the first mold member is stationary, the second mold member rotates to break the soft solid plastic into granules, because the rotation of the second mold member is unidirectional periodic intermittent rotation, the above processes are repeated in such a reciprocating manner, the soft solid plastic granules are orderly accumulated in the second mold hole 2132 step by step and finally pushed into the cooling molding area, the soft solid plastic particles are cooled by water in the second die hole 2132 and the cooling forming area to form solid particles, and then the solid particle plastic is discharged through the discharge nozzle 2113 along with the water;

in addition, when the punch forming device 200 is initially started, when molten plastic is conveyed into the cooling forming area through the feed nozzle 217, the feed chute 2161, the first die hole 2162 and the second die hole 2132, water flows into the second die hole 2132 and the cooling forming area through the water inlet mechanism 230 and the water inlet channel network of the second die member, so that the solid plastic discharged along with the water at the beginning is irregular, and after a period of time, the solid plastic discharged along with the water is solid granular plastic;

s3: the mixture of the solid granular plastic and the water finally flows into the water separation output device 300 communicated with the discharge nozzle 2113, the water separation output device 300 carries out water separation treatment on the mixture and then outputs the plastic granules, and in the process of outputting the plastic granules, the water separation output device 300 also carries out surface moisture air drying treatment on the plastic granules.

The invention carries out melting and particle forming on plastic fragments, and has the advantages that in the melting process, the filter plate is adopted to filter impurities such as stones and the like on molten plastic, so that the quality of the formed plastic particles is ensured, the adverse effect of the impurities such as the stones and the like on the equipment is avoided, the impurities can be transported and discharged in real time by arranging the auger, the accumulation phenomenon of the impurities which can influence the transportation of the molten plastic cannot occur, meanwhile, the avoidance hole arranged on the spiral surface of the auger ensures that the auger does not influence the transportation process of the molten plastic, and the arrangement of the heat-insulating heating element can ensure that the molten plastic is always kept in a molten state in the transportation process; in the particle forming process, the rotary die is used as the die body, and the molten plastic can automatically complete the processing of particle cutting forming and cooling to be solid granular output in the rotary die, so that subsequent cutting by devices such as a cutting machine is not needed, the operation is more convenient and the efficiency is greatly improved; in the process of outputting the solid granular plastic, the water separation device can carry out water filtration and surface moisture air drying treatment on the plastic granules, so that the subsequent storage of the plastic granules is facilitated.

A cutting-free automatic chain-breaking plastic particle forming machine comprises a mounting frame body horizontally placed on the ground, wherein a melting conveying device 100, a rotary die forming device 200 and a water separation output device 300 are arranged on the mounting frame body, the melting conveying device 100 is used for melting and heating plastic fragments and filtering impurities of molten plastic and then conveying the molten plastic into the rotary die forming device 200, the rotary die forming device 200 is used for receiving the molten plastic, sequentially cooling the molten plastic to form a soft solid state, cutting the molten plastic into granules and performing water cooling forming treatment, and the water separation output device 300 is used for receiving a mixture of plastic granules and water and performing separation treatment on the mixture.

When the device is used, a worker transports and pours the chopped plastic fragments into the melting and conveying device 100 through manual work or the existing mechanical technology, the melting and conveying device 100 heats and melts the plastic and makes the plastic in a molten state, then the melting and conveying device 100 conveys the molten plastic into the rotary die forming device 200, and in the conveying process, the melting and conveying device 100 further filters impurities such as stones and the like on the molten plastic; the rotary die forming device 200 receives the molten plastic, sequentially cools the molten plastic into a soft solid state, cuts the molten plastic into granules, and performs water-cooling forming treatment, and then the plastics in the granular solid state and water are output to the water separation output device 300 together, and the water separation output device 300 separates the water from the plastic granules.

The melting and conveying device 100 comprises a melting mechanism 110, an impurity filtering mechanism 120, a conveying mechanism 130 and a driving mechanism 140, wherein the melting mechanism 110 is used for heating and melting plastic fragments, the impurity filtering mechanism 120 is used for filtering impurities of molten plastic, the conveying mechanism 130 is used for conveying the molten plastic into the rotary die forming device 200, and the driving mechanism 140 is used for providing power for the operation of the impurity filtering mechanism 120 and the conveying mechanism 130.

The melting mechanism 110 comprises a melting tank 111 with an open upper end and a closed lower end, the melting tank is fixed on the mounting frame body, and a melting heating element 112 is fixed outside the melting tank 111 and used for providing heating power for melting plastic fragments, a fixed pipeline communicated with an inner cavity of the melting tank 111 is coaxially arranged at the closed end of the melting tank 111, and a melting end cover is arranged at the open end of the melting tank 111 in a matched manner.

The impurity filtering mechanism 120 is arranged below the melting mechanism 110, the impurity filtering mechanism 120 includes a filtering pipeline 121, a connecting pipeline 122, an auger 123, and a storage disc 124, the filtering pipeline 121 is composed of two parts, namely a vertical section 1211 and an inclined section 1212, the vertical section 1211 is vertically fixed on the mounting frame body, the top end of the vertical section 1211 is communicated with the fixed pipeline, the inclined section 1212 is obliquely fixed on the mounting frame body, the inclined section 1212 and the vertical section 1211 are communicated with each other and form a cross arrangement, a filtering plate 1213 is arranged at the communication position of the vertical section 1211 and the inclined section 1212, the filtering plate 1213 is used for filtering impurities such as stones and the like on the molten plastic, and a fixed end cover is arranged at the lower pipe opening of the inclined section 1212 in a matching manner.

Connecting tube 122 slope be fixed in on the installation support body, and the incline direction of connecting tube 122 and the incline section 1212 incline direction of filtering duct 121 are located same straight line, connect the switch-on between the lower mouth of pipe of connecting tube 122 and the incline section 1212 of filtering duct 121 goes up the mouth of pipe, the upper mouth of pipe of connecting tube 122 matches and installs the installation end cover.

Set up in the slope section 1212 of filtering duct 121 under orificial fixed end cover coaxial seted up the through-hole, auger 123 and connecting tube 122 between be coaxial and arrange, auger 123's top and set up coaxial swing joint between orificial installation end cover on connecting tube 122, auger 123's bottom passes connecting tube 122 in proper order, filtering duct 121's slope section 1212, set up behind the through-hole on the fixed end cover and swing joint between the installation support body, auger 123 can rotate around self axial, still even interval is provided with a plurality of groups on auger 123's the helicoid and dodges the hole, dodge the hole and be used for rotating and carrying impurity in-process such as stone and avoid carrying away molten state plastics at the auger.

The outside of connecting tube 122 still be provided with the ejection of compact mouth 1221 of being connected the switch-on rather than the inner chamber, ejection of compact mouth 1221 is located connecting tube 122 under and ejection of compact mouth 1221 still is close to connecting tube 122's last nozzle, storage disc 124 horizontal fixation in the installation support body on and it still is located ejection of compact mouth 1221 under.

In the process that the plastic fragments are heated and melted in the melting tank body 111 to be molten, the plastic fragments cannot continuously fall down due to the existence of the auger 123 and the melting of the plastic fragments is not influenced;

molten plastic can fall downwards through the avoiding holes arranged on the spiral surface of the auger 123 and the filter plate 1213, impurities such as stones can be blocked by the filter plate 1213 in the falling process, and meanwhile, the auger 123 rotates and can pull the stones to be upwards conveyed to the discharge nozzle 1221 and finally fall into the storage disc 124.

The conveying mechanism 130 is located below the impurity filtering mechanism 120, the conveying mechanism 130 comprises a conveying pipeline 131 and a material pushing screw 133, the conveying pipeline 131 is horizontally fixed on the mounting frame body, a connecting nozzle 1311 communicated with an inner cavity of the conveying pipeline 131 is arranged outside the conveying pipeline 131, the connecting nozzle 1311 is located right above the conveying pipeline 131, and the connecting nozzle 1311 is communicated with a lower pipe orifice of the vertical section 1211 of the filtering pipeline 121.

A connecting bracket is arranged at one pipe orifice of the conveying pipeline 131, the pipe orifice is also connected and communicated with a material conveying joint 134, and a sealing end cover is arranged at the other pipe orifice of the conveying pipeline 131 and coaxially provided with an extending hole.

The pushing screw 133 and the conveying pipeline 131 are coaxially arranged, one end of the pushing screw 133 is movably connected with the connecting support, the other end of the pushing screw 133 penetrates through an extending hole formed in the sealing end cover and is movably connected with the mounting frame body, and the pushing screw 133 can axially rotate around itself.

Preferably, the exterior of the conveying pipe 131 is provided with a heat-insulating heating element 132 for insulating the molten plastic in the conveying pipe 131 and keeping the molten plastic in a molten state all the time.

The molten plastic drops into the conveying pipeline 131 through the connecting nozzle 1311, and meanwhile, the pushing screw 133 rotates and pulls the molten plastic to be conveyed towards the conveying joint 134, so that the molten plastic is prevented from being cooled and solidified due to the existence of the heat-insulating heating element 132 in the conveying process.

The driving mechanism 140 includes a driving motor 141, the driving motor 141 is horizontally fixed on the mounting frame body, an output shaft of the driving motor 141 is axially parallel to an axial direction of the pushing screw 133, a first power transmission member 142 is arranged between a power output end of the driving motor 141 and a power input end of the pushing screw 133, the first power transmission member 142 and the second power transmission member 142 are in power connection transmission, a second power transmission member 143 is arranged between the power input end of the pushing screw 133 and a power input end of the packing auger 123, and the two power transmission members are in power connection transmission through the second power transmission member 143.

The driving motor 141 operates and can drive the pushing screw 133 and the packing auger 123 to rotate through the cooperation of the power transmission piece I/II.

The rotary die forming device 200 is located on one side of the pipe orifice of the conveying pipeline 131, which is provided with the connecting support and deviates from the pipe orifice provided with the sealing end cover, the rotary die forming device 200 comprises a rotary die forming mechanism 210, an intermittent rotating mechanism 220 and a water inlet mechanism 230, the rotary die forming mechanism 210 is used for receiving molten plastic and providing a die for converting the molten plastic into a particle solid structure, the intermittent rotating mechanism 220 is used for driving the rotary die forming mechanism 210 to periodically and intermittently rotate, and the water inlet mechanism 230 is used for providing cooling water for the rotary die forming mechanism 210.

The rotary die forming mechanism 210 comprises a fixed shell 211, a first die component and a second die component, the fixed shell 211 is a cylindrical shell structure with openings at two ends and is coaxially arranged with the conveying pipeline 131, the fixed shell 211 is fixed on the mounting frame body, and a discharging nozzle 2113 connected and communicated with the inner cavity of the fixed shell 211 is arranged at the bottom of the fixed shell 211.

The second mold component comprises a mold shaft 212, a second mold body 213 and a fixing block 214, the mold shaft 212 and the fixing shell 211 are coaxially arranged, the mold shaft 212 is located on one side, away from the conveying mechanism 130, of the fixing shell 211, a supporting bracket is arranged between the mold shaft 212 and the mounting frame body, the supporting bracket is fixed on the mounting frame body, the mold shaft 212 is mounted on the supporting bracket through a bearing, and the mold shaft 212 can axially rotate around itself.

The second mold body 213 is a cylindrical structure, the second mold body 213 is coaxially located in the fixed housing 211, the second mold body 213 is further coaxially and fixedly connected with the mold shaft 212, an installation groove 2134 in a circular groove structure is coaxially arranged on an end surface, facing the conveying mechanism 130, of the second mold body 213, a second mold hole 2132 connected and communicated with the installation groove 2134 is further arranged on an outer circumferential surface of the second mold body 213, and a plurality of groups of the second mold holes 2132 are arranged in an array manner along the circumferential direction of the second mold body 213.

The fixed block 214 is located on a side of the second mold body 213 away from the conveying mechanism 130, the fixed block 214 is a cylindrical structure, the fixed block 214 is coaxially fixed outside the mold shaft 212, and the fixed block 214 is further fixedly connected with the second mold body 213 in a sealing manner.

The mould axle 212, fixed block 214, the second mould body 213 between be provided with the inhalant canal net, it is specific, the terminal surface that the mould axle 212 deviates from conveying mechanism 130 be provided with inlet channel 2122 and this terminal surface matching installs sealed pullover, the excircle face of mould axle 212 is provided with the inlet opening 2121 and the inlet opening two 2123 of being connected the switch-on with inlet channel 2122, inlet opening one 2121 is close to sealed pullover and inlet opening one 2121 and is provided with a plurality of groups along the circumferencial direction array of mould axle 212, inlet opening two 2123 is close to the second mould body 213 and inlet opening two 2123 and is provided with a plurality of groups along the circumferencial direction array of mould axle 212.

The end face of the fixing block 214 facing the second die body 213 is coaxially provided with a first water inlet ring groove 2142, the fixing block 214 is further provided with a connecting hole 2141 for connecting and communicating the first water inlet ring groove 2142 and a second water inlet hole 2123, and the connecting hole 2141 is correspondingly provided with a plurality of groups.

The end surface of the second mold body 213 facing the fixing block 214 is coaxially provided with a second water inlet ring groove 2131 connected and communicated with the first water inlet ring groove 2142, the second mold body 213 is further provided with a second connecting hole 2133 used for connecting and communicating the second water inlet ring groove 2131 and the second mold hole 2132, and the connecting holes 2133 are correspondingly provided with a plurality of groups.

The first water inlet hole 2121, the second water inlet hole 2122, the second water inlet hole 2123, the connecting hole 2141, the first water inlet ring groove 2142, the second water inlet ring groove 2131 and the communicating hole 2133 form a water inlet channel network of the second mold component.

The area between the outer circular surface of the second mold body 213 and the wall of the fixed housing 211 is the cooling molding area of the rotary molding mechanism 210.

And a second closed end cap 2112 for sealing between the second mold member and the opening of the fixed shell 211 departing from the conveying mechanism 130 is arranged between the second mold member and the opening.

The first die member is located on one side, facing the conveying mechanism 130, of the second die member, the first die member comprises a first die body 216, the first die body 216 is of a cylindrical structure, the first die body 216 is coaxially located in a mounting groove 2134 of the second die body 213, specifically, a supporting protrusion 2163 which is of a cylindrical protrusion structure is coaxially arranged on the end surface, facing the bottom of the mounting groove 2134, of the first die body 216, a supporting groove is coaxially arranged at the bottom of the mounting groove 2134, the free end of the supporting protrusion 2163 is coaxially located in the supporting groove, the free end and the free end are not interfered with each other, and the outer circular surface of the first die body 216 is in close contact with the wall of the mounting groove 2134.

The end surface of the first die body 216 facing the conveying mechanism 130 is coaxially provided with a feed groove 2161, a feed nozzle 217 is arranged at the notch of the feed groove 2161 in a matching way, and the free end of the feed nozzle 217 is communicated with the feeding joint 134.

The outer circular surface of the first die body 216 is further provided with a first die hole 2162 communicated with the feed chute 2161, the first die hole 2162 is also communicated with a second die hole 2132, and the first die holes 2162 are correspondingly arrayed in a plurality of groups along the circumferential direction of the first die body 216.

A first closed end cap 2111 for sealing between the first mold member and the opening of the fixed shell 211 facing the conveying mechanism 130 is arranged between the first mold member and the opening, and the first mold body 216 is fixedly connected with the first closed end cap 2111.

The rotary die forming mechanism 210 receives the molten plastic and performs a particle forming process on the molten plastic, which is specifically represented as follows: the molten plastic flows to the first mold hole 2162 through the feeding nozzle 217 and the feeding groove 2161, and then flows to the second mold hole 2132, in the process, water flows into the second mold hole 2132 through the water inlet mechanism 230 and the water inlet channel network of the second mold member, the molten plastic is gradually converted into a soft solid state while approaching the second mold hole 2132, when the size of the soft solid plastic entering the second mold hole 2132 meets the requirement, the intermittent rotation mechanism 220 drives the second mold member to rotate, because the first mold member is stationary, the second mold member rotates to break the soft solid plastic and cut the soft solid plastic into granules, because the rotation of the second mold member is periodic intermittent rotation, the soft solid plastic granules are gradually and orderly accumulated in the second mold hole 2132 and finally pushed into the cooling molding area, in the process that the soft solid plastic particles are pushed into the cooling forming area, water flows into the cooling forming area through the water inlet mechanism 230, the water inlet channel net of the second mold component and the second mold hole 2132 and is finally discharged through the discharge nozzle 2113, and the soft solid plastic particles are cooled in the second mold hole 2132 and the cooling forming area by the water to form solid granular heels which are discharged through the discharge nozzle 2113 together with the water.

In the first starting process of the plastic particle forming machine, when molten plastic is conveyed into the cooling forming area through the conveying pipeline 131, the feeding nozzle 217, the feeding groove 2161, the first die hole 2162 and the second die hole 2132, water flows into the second die hole 2132 and the cooling forming area through the water inlet mechanism 230 and the water inlet channel network of the second die member, so that the solid plastic discharged along with the water is irregular at first, and the solid granular plastic is discharged along with the water after a period of time.

More specifically, when the soft solid plastic particles are cooled by water in the second mold hole 2132, and the soft solid plastic particles are just entering the second mold hole 2132, a bonding phenomenon may be formed between the soft solid plastic particles and another adjacent group of soft solid plastic particles, in order to solve the problem, a discharging member 215 is arranged in a cooling forming area of the rotary mold forming mechanism 210, the discharging member 215 includes a fixing ring 2151 and a discharging plate 2152, the fixing ring 2151 is coaxially fixed outside the second mold body 213, the discharging plate 2152 is fixed on an annular surface of the fixing ring 2151, a large surface of the discharging plate 2152 is parallel to an axial direction of the fixing ring 2151, the discharging plate 2152 is also located right above the second mold hole 2132, an included angle is formed between the discharging plate 2152 and the mold hole 2132, and a plurality of groups of discharging plates 2152 are correspondingly arranged; during the process of conveying the plastic granules in the second mold hole 2132 into the cooling and molding area, the plastic granules will first contact with the inclined surface of the discharging plate 2152, and then, while the plastic granules continue to be conveyed into the cooling and molding area, a pressing force will be formed between the plastic granules and the discharging plate 2152, and the pressing force will drive the plastic granules to slide along the inclined surface of the discharging plate 2152, so that the adhesion between the plastic granules and another adjacent group of plastic granules is broken.

The water inlet mechanism 230 comprises a water inlet pipe 231 and a rotary joint 232, the rotary joint 232 is a cylindrical structure with two open ends and built-in steps, the rotary joint 232 is coaxially and movably sleeved outside the part of the die shaft 212 provided with the water inlet hole 2121, the inner cavity of the rotary joint 232 is communicated with the water inlet hole 2121, the rotary joint 232 and the die shaft 212 are not interfered with each other, and preferably, sealing rings are arranged between the two open ends of the rotary joint 232 and the die shaft 212 in a matched mode.

One end of the water inlet pipe 231 is connected with the rotary joint 232, and the other end is connected with the cooling water supply system.

The water in the cooling water supply system flows into the water inlet passage network of the second mold member through the water inlet pipe 231, the rotary joint 232 and the water inlet hole one 2121.

The intermittent rotation mechanism 220 comprises a rotation motor 221, a sheave member and a dial member, wherein the sheave member comprises a driven sheave 223 coaxially fixed outside the die shaft 212, a plurality of groups of concave locking arcs are arrayed on the outer circumferential surface of the driven sheave 223 along the circumferential direction of the driven sheave 223, a radial groove 224 is arranged between every two adjacent groups of concave locking arcs, the radial groove 224 penetrates through the axial thickness of the driven sheave 223, and the guiding direction of the radial groove 224 is parallel to the diameter direction of the driven sheave 223 at the point.

The dial piece comprises a dial shaft 225, a driving dial 226 and a cylindrical pin 227, the axial direction of the dial shaft 225 is parallel to the axial direction of the die shaft 212, the dial shaft 225 is movably mounted on the support bracket and can rotate around the axial direction of the dial shaft, the driving dial 226 is coaxially fixed outside the dial shaft 225, a convex locking arc matched with the concave locking arc is arranged on the driving dial 226, and the cylindrical pin 227 is eccentrically arranged on the driving dial 226 and matched with the radial groove 224.

The axial direction of the output shaft of the rotating motor 221 is parallel to the axial direction of the die shaft 212, the rotating motor 221 is fixed on the mounting frame body, a power transmission member III 222 is arranged between the power output end of the rotating motor 221 and the dial shaft 225, power connection transmission is carried out between the power output end of the rotating motor 221 and the dial shaft through the power transmission member III 222, and particularly, the power transmission member III 222 is of a belt transmission power transmission structure.

The rotating motor 221 operates and pulls the dial shaft 225 to rotate around the axial direction of the dial shaft 225, during a period of rotation of the dial shaft 225, the driving dial 226 rotates to enable the cylindrical pin 227 to enter the radial groove 224 of the driven sheave 223 and the convex locking arc and the concave locking arc are just separated, at this time, the cylindrical pin 227 is matched with the radial groove 224 to drive the driven sheave 223/the die shaft 212/the second die body 213 to rotate and the rotational displacement is equal to the distance between two adjacent sets of die holes, then the cylindrical pin 227 is separated from the radial groove 224 and the convex locking arc locks the concave locking arc, the dial shaft 225 does not pull the driven sheave 223 to rotate, the die shaft 212/the second die body 213 is in a static state, and the reciprocating is carried out, so that the second die member does unidirectional periodic intermittent rotation.

The water separation output device 300 comprises an output mechanism 310, a power connection mechanism 320 and a water receiving tank 330, wherein the output mechanism 310 is used for receiving a mixture of plastic particles and water output by the rotary die forming mechanism 210 and separating the mixture to output force, the power connection mechanism 320 is used for power connection between the output mechanism 310 and the dial plate shaft 225, and the water receiving tank 330 is used for receiving water separated and discharged by the output mechanism 310.

The output mechanism 310 comprises a separation drum 311, a material receiving pipeline 312 and a material discharging pipeline 313, the separation drum 311 is in a cylindrical structure which is axially parallel to the axial direction of the die shaft 212 and has two open ends, the separation drum 311 is movably arranged on the mounting frame body and can rotate around the axial direction of the separation drum 311, and a plurality of groups of filtering holes are uniformly arranged on the outer circumferential surface of the separation drum 311 at intervals.

The material receiving pipeline 312 is obliquely arranged, the highest end of the material receiving pipeline 312 is fixedly connected and communicated with the discharging nozzle 2113, the lowest end of the material receiving pipeline passes through one opening end of the separation rotating cylinder 311 and extends into the separation rotating cylinder 311, and the other opening end of the separation rotating cylinder 311 is provided with a fan 314 in a matching manner.

The inside slope of separation revolving drum 311 be fixed with guide plate 3111, the peak of guide plate 3111 is towards material receiving pipeline 312, the minimum is towards fan 314, guide plate 3111 is provided with several groups and is the distribution of step between a plurality of groups guide plate 3111 along the axial array of separation revolving drum 311.

The separation drum 311 is provided with a discharging sleeve at the opening end of the fan 314, the discharging pipe 313 is arranged obliquely, and the highest end of the discharging pipe 313 is communicated with the discharging sleeve.

The power connection mechanism 320 includes a transmission shaft 321, the transmission shaft 321 is coaxially and fixedly connected with the dial plate shaft 225, a power connection member 322 is disposed between the transmission shaft 321 and the separation drum 311, and power connection transmission is formed between the transmission shaft 321 and the separation drum 311, specifically, the power connection member 322 is a V-belt transmission structure.

The water receiving tank 330 is fixed on the mounting frame body and is also positioned right below the separation drum 311.

Preferably, the bottom of the water receiving tank 330 is connected and communicated with a water outlet pipeline 331, and the water outlet pipeline 331 is connected and communicated with a cooling water supply system; the significance is that the water in the water receiving tank 330 flows into the cooling water supply system through the water outlet pipeline 331, so that the water resource is utilized to the maximum extent.

The mixture of the solid plastic particles and water flows into the separation drum 311 through the material receiving pipeline 312, the water flows downwards into the water receiving tank 330 through the filtering holes, the solid plastic particles are left in the separation drum 311, meanwhile, the power connecting mechanism 320 receives power generated by rotation of the dial plate shaft 225 and transmits the power to the separation drum 311 through the power connecting piece 322 so as to enable the separation drum 311 to rotate around the axial direction of the separation drum, and in the rotating process, the guide plate 3111 guides the solid plastic particles to the connection position of the discharge sleeve and the discharge pipeline 313 and guides the solid plastic particles to be output through the discharge pipeline 313; in the above process, the fan 314 operates, and the wind power of the fan 314 is not enough to prevent the guide plate 3111 from guiding the plastic particles to be conveyed to the discharge pipe 313, the plastic particles are finally concentrated to the connection position of the discharge sleeve and the discharge pipe 313 and are output outwards through the discharge pipe 313 under the guiding action of the guide plate 3111 and the wind power of the fan 314, and the separation of the fan 314 also performs surface moisture air drying treatment on the solid plastic particles.

Claims

1. A granulation process for the automatic forming of plastic foam in the molten state, comprising the steps of:

2. The granulating process for the automatic molding of the plastic foam in the molten state as claimed in claim 1, wherein the melting and conveying device comprises a melting mechanism, an impurity filtering mechanism, a conveying mechanism and a driving mechanism, the melting mechanism is used for heating and melting the plastic fragments, the impurity filtering mechanism is used for filtering impurities of the plastic in the molten state, the conveying mechanism is used for conveying the plastic in the molten state into the rotary mold molding device, and the driving mechanism is used for providing power for the operation of the impurity filtering mechanism and the conveying mechanism;

3. The process according to claim 2, wherein the impurity filtering mechanism is disposed below the melting mechanism, the impurity filtering mechanism comprises a filtering pipeline, a connecting pipeline, a packing auger and a storage tray, the filtering pipeline comprises a vertical section and an inclined section, the vertical section is vertically fixed on the mounting frame body, the top end of the vertical section is connected and communicated with the fixed pipeline, the inclined section is obliquely fixed on the mounting frame body, the inclined section and the vertical section are communicated with each other and arranged in a cross manner, a filtering plate is disposed at the position where the vertical section is communicated with the inclined section, the filtering plate is used for filtering impurities such as stones from the molten plastic, and a fixed end cover is mounted at the lower pipe orifice of the inclined section in a matching manner;

4. The granulation process for the automatic molding of the molten plastic foam according to claim 3, wherein the conveying mechanism is positioned below the impurity filtering mechanism, the conveying mechanism comprises a conveying pipeline and a pushing screw rod, the conveying pipeline is horizontally fixed on the mounting frame body, a connecting nozzle communicated with the inner cavity of the conveying pipeline is arranged outside the conveying pipeline, the connecting nozzle is positioned right above the conveying pipeline, and the connecting nozzle is communicated with the lower pipe orifice of the vertical section of the filtering pipeline;

5. The granulation process for the automatic molding of the molten plastic foam according to claim 4, wherein the driving mechanism comprises a driving motor, the driving motor is horizontally fixed on the mounting frame body, the axial direction of an output shaft of the driving motor is parallel to the axial direction of the pushing screw, a first power transmission piece is arranged between the power output end of the driving motor and the power input end of the pushing screw, the first power transmission piece and the second power transmission piece are in power connection transmission through the first power transmission piece, a second power transmission piece is arranged between the power input end of the pushing screw and the power input end of the packing auger, the first power transmission piece is in a belt transmission power transmission structure, and the second power transmission piece is in a bevel gear power transmission structure.

6. A granulation process for the automatic forming of plastic foam in the molten state, as claimed in claim 1 or 4, wherein said fixed casing is arranged coaxially with the delivery duct;

7. The process according to claim 1, wherein the cooling and forming section of the rotary die forming mechanism is provided with a discharging member, the discharging member comprises a fixing ring and a discharging plate, the fixing ring is coaxially fixed outside the second die body, the discharging plate is fixed on the ring surface of the fixing ring, the large surface of the discharging plate is parallel to the axial direction of the fixing ring, the discharging plate is further positioned right above the die hole and arranged at an included angle with the die hole, and the discharging plate is correspondingly provided with a plurality of groups.

8. The granulation process for the automatic molding of the molten plastic foam according to claim 6, wherein the water inlet mechanism comprises a water inlet pipeline and a rotary joint, the rotary joint is a cylindrical structure with openings at two ends and built-in steps at two open ends, the rotary joint is coaxially and movably sleeved outside the part of the mold shaft provided with the water inlet hole I, the inner cavity of the rotary joint is communicated with the water inlet hole I, the rotary joint and the mold shaft are not interfered with each other, and sealing rings are arranged between the two open ends of the rotary joint and the mold shaft in a matching manner;

9. The granulating process of claim 1, wherein the intermittent rotating mechanism comprises a rotating motor, a sheave member and a driving plate member, the sheave member comprises a driven sheave coaxially fixed outside the mold shaft, the outer circumferential surface of the driven sheave is provided with a plurality of sets of concave locking arcs along the circumferential direction thereof, a radial groove is arranged between two adjacent sets of concave locking arcs, the radial groove penetrates through the axial thickness of the driven sheave, and the guiding direction of the radial groove is parallel to the diameter direction of the driven sheave at the point;

10. The process of claim 1, wherein the water separation and output device comprises an output mechanism for receiving the mixture of plastic particles and water from the rotary die forming mechanism and separating the mixture to generate force, a power connection mechanism for power connection between the output mechanism and the dial plate shaft, and a water receiving tank for receiving water separated and discharged by the output mechanism;