CN110871526A

CN110871526A - Plastic particle forming circulating chain type die

Info

Publication number: CN110871526A
Application number: CN201911160992.3A
Authority: CN
Inventors: 陆永柱; 祝磊; 丁先虎
Original assignee: Luan Fengkaini Electromechanical Technology Co Ltd
Current assignee: Luan Fengkaini Electromechanical Technology Co Ltd
Priority date: 2019-11-24
Filing date: 2019-11-24
Publication date: 2020-03-10

Abstract

The invention provides a plastic particle forming circulation chain type mold, which comprises a main frame body, a mold device, a water-cooling forming device and a water separation output device, wherein a cooling water tank with an opening at the upper end and a closed lower end is fixedly arranged on the main frame body; the molten plastic is subjected to particle shaping treatment and then is conveyed into the chain mold for cooling and forming, and the obtained plastic particles are consistent in size, good in quality and convenient for subsequent sale.

Description

Plastic particle forming circulating chain type die

Technical Field

The invention relates to the field of plastic processing, in particular to a plastic granulator.

Background

The existing plastic granulator generally extrudes strip-shaped plastic through an extrusion forming mechanism, and then performs particle cutting treatment on the strip-shaped plastic to obtain plastic particles, but most of the plastic particles obtained by the method have unfixed shapes and non-uniform specifications, are not beneficial to subsequent sale and finish machining treatment, and injection molding is also called injection molding, is a molding method combining injection molding and molding, has the advantages of high production speed and high efficiency, can realize automation in operation, can form a simple shape and a small size, is accurate in product size, is easy to replace products, can form workpieces with complex shapes, is suitable for the molding processing fields of mass production, products with complex shapes and the like, and is one of industrially important processing methods, the invention provides plastic granulation equipment adopting a chain mold injection molding mode, which is characterized in that after the molten plastic is subjected to particle shaping treatment, the molten plastic is subjected to injection molding and is conveyed into a chain mold for cooling molding, and the obtained plastic particles are consistent in size, good in quality and convenient for subsequent sale.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide a plastic granulator, which is used for carrying out particle shaping treatment on molten plastic and then conveying the molten plastic into a chain mold for cooling and forming, so that the obtained plastic particles have consistent sizes and better quality, and are convenient for subsequent sale.

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

The circulating chain type die for plastic particle molding comprises a main frame body, a die device, a water-cooling molding device and a water separation output device, wherein a cooling water tank with an opening at the upper end and a closed lower end is fixedly arranged on the main frame body;

the mould device is used for receiving molten plastic and forming the molten plastic into proper granules, the water-cooling forming device is used for receiving the granular molten plastic output by the mould device and carrying out water-cooling solidification forming treatment on the granular molten plastic, and the water-separation output device is used for receiving a cooling water and plastic granule mixture output by the water-cooling forming device and carrying out separation output treatment on the cooling water and plastic granule mixture.

The technical scheme is further improved and optimized.

The die device comprises a feeding mechanism, a die mechanism and an intermittent driving mechanism, wherein the feeding mechanism is used for receiving molten plastic and conveying the molten plastic into the die mechanism, the die mechanism is used for providing a die for molding the molten plastic into proper granules, and the intermittent driving mechanism is used for driving the die mechanism to axially rotate around the die mechanism and drawing the granular molten plastic to be right above the feeding end of the water-cooling molding device;

the die mechanism comprises a die body, an upper sealing cover plate and a lower sealing cover plate, wherein the upper sealing cover plate and the lower sealing cover plate are horizontally arranged, a first vertical plate is arranged between the bottom of the lower sealing cover plate and the bottom of the cold water tank, the lower sealing cover plate is fixed to the bottom of the cooling water tank through the first vertical plate, a second vertical plate is arranged at the bottom of the upper sealing cover plate, and the upper sealing cover plate is fixed to the upper end face of the lower sealing cover plate through the second vertical plate;

the die body is of a cylindrical structure which is axially vertical to the ground, the die body is arranged in the area between the upper closed cover plate and the lower closed cover plate and can axially rotate around the die body, the upper end surface and the lower end surface of the die body are respectively contacted with the upper closed cover plate and the lower closed cover plate to form sealing fit, and a heating element for heating the die body and keeping the plastic in the die body in a molten state is also arranged on the outer circular surface of the die body in a matched manner;

the die body is provided with particle holes penetrating through the axial thickness of the die body, a plurality of groups of the particle holes are arranged in an array mode along the circumferential direction of the die body, the upper end face of the die body is coaxially provided with a die shaft, the top end of the die shaft penetrates through the upper sealing cover plate and is positioned above the upper sealing cover plate, and the die shaft rotates around the self axial direction and pulls the die body to rotate synchronously;

the upper closed cover plate is provided with a feed hole penetrating through the thickness of the upper closed cover plate, the feed hole can be divided into a cylindrical section and a circular truncated cone section along the self axial direction from bottom to top, the large end of the circular truncated cone section is positioned above the small end, the small end of the circular truncated cone section is communicated with the cylindrical section, the bottom end of the cylindrical section is communicated with any group of particle holes, and the shapes of the bottom end and the circular truncated cone section are consistent with the shapes of the plastic particles;

the lower sealing cover plate is provided with a discharge hole penetrating through the thickness of the lower sealing cover plate, an included angle between the discharge hole and the feed hole is one hundred eighty degrees, the discharge hole is communicated with the corresponding particle hole in an interconnecting mode, and the feed end of the water-cooling forming device is located under the discharge hole.

The technical scheme is further improved and optimized.

The feeding mechanism comprises a feeding pipeline, one end of the feeding pipeline is used for receiving molten plastic, the other end of the feeding pipeline is connected and communicated with a connecting pipeline, the other end of the connecting pipeline is fixedly connected with the upper end face of the upper closed cover plate, and the connecting pipeline is communicated with the feeding hole;

the conveying pipeline on be provided with the pressure release component, the pressure release component includes pressure release pipeline, pressure release piston, pressure release spring, is connected the switch-on between the one end of pressure release pipeline and the conveying pipeline, the other end matches and installs the end closure, the pressure release piston sets up in pressure release pipeline and constitutes sealed sliding guide cooperation between the two, pressure release spring's one end and end closure conflict, the other end contradicts with the pressure release piston, pressure release spring's elasticity makes the motion that the pressure release piston is close to the conveying pipeline.

The technical scheme is further improved and optimized.

The intermittent driving mechanism is of an intermittent grooved wheel structure and comprises a driving motor, a driving part and a driven part, the upper end surface of the lower closed cover plate is also provided with a support frame, and the driving motor is vertically fixed on the support frame;

the driven part comprises a driven sheave, the driven sheave is coaxially fixed outside the top end of the die shaft, the outer circular surface of the driven sheave is provided with intermittent grooves penetrating through the axial thickness of the driven sheave, the guiding direction of the intermittent grooves is parallel to the diameter direction of the corresponding points on the driven sheave, the intermittent grooves are arrayed along the circumferential direction of the driven sheave and are provided with a plurality of groups, and the number of the intermittent grooves is equal to the number of the particle holes;

the driving part comprises a dial shaft and a driving dial plate, one end of the dial shaft is coaxially and fixedly connected with the power output end of the driving motor, the other end of the dial shaft is movably connected with the upper sealing cover plate, and the dial shaft can axially rotate around the dial shaft;

the driving drive plate is coaxially fixed outside the drive plate shaft, a drive pin matched with the intermittent groove is arranged on the upper end face of the driving drive plate, the drive plate shaft axially rotates around the drive plate shaft and drives the driving drive plate/drive pin to synchronously rotate, the drive pin can rotate after being positioned in the intermittent groove and then is separated from the intermittent groove in a period of rotation of the drive plate shaft, the drive pin is matched with the intermittent groove and can drive the driven grooved pulley to rotate, and the rotation displacement is equal to the displacement between two adjacent groups of particle holes/intermittent grooves.

The technical scheme is further improved and optimized.

The water-cooling forming device comprises a chain mold mechanism, a power connecting mechanism and a water-cooling mechanism, wherein the chain mold mechanism is used for receiving granular molten plastic which falls and is output through the discharge hole and conveying the granular molten plastic to the direction of the feed end of the water separation output device, the water-cooling mechanism is used for spraying cooling water to the molten plastic and solidifying and forming the plastic in the conveying process of the chain mold mechanism, and the power connecting mechanism is used for power connection and transmission between the mold shaft and the chain mold mechanism;

the chain mold mechanism comprises a mounting base and a chain mold piece, the mounting base is horizontally fixed at the bottom of the cooling water tank and is positioned below the mold mechanism, a contact plate is horizontally fixed at the middle position of the upper end face of the mounting base, the length extending direction of the contact plate is parallel to the length extending direction of the mounting base, a sealing strip is horizontally fixed at the middle position of the contact plate, and the length extending direction of the sealing strip is parallel to the length extending direction of the mounting base;

the chain module comprises a rotating shaft, chain wheels, chains and a mould block, wherein the rotating shaft is vertically and movably arranged on the mounting base and can rotate around the axial direction of the rotating shaft, two groups of rotating shafts are arranged along the length extending direction of the mounting base, the chain wheels are coaxially fixed outside the rotating shaft, two groups of chain wheels are correspondingly arranged, and the chains are arranged between the two groups of chain wheels;

the die blocks are fixed on the chain, forming grooves which penetrate through the height of the die blocks and are semicircular in horizontal cross section are formed in the side faces of the die blocks, which are far away from the chain, and a plurality of groups of the die blocks are arranged in an array mode along the extending direction of the chain;

the chain modules are provided with two groups and are respectively positioned on one side of the sealing strip along the length extension direction of the chain modules, the two groups of chain modules are symmetrically distributed, the two groups of chain modules correspond to the forming grooves and can jointly form a forming hole which is matched with the particle hole arranged on the mould body and has a cylindrical hole structure, the lower hole opening of the forming hole is tightly contacted with the upper end surface of the sealing strip, the sealing strip can seal the lower hole opening of the forming hole, and the forming hole at the feeding end of the chain module is positioned right below the particle hole communicated with the discharging hole;

the installation base on still seted up and dodged the hole and dodge the hole and be located under the shaping hole of chain module discharge end, cooling water tank's bottom be provided with and dodge the hole and the bin outlet is located and dodges under the hole.

The technical scheme is further improved and optimized.

The power connecting mechanism comprises a transmission shaft, the transmission shaft is vertically fixed in the cooling water tank, a power connecting piece is arranged between the power input end of the transmission shaft and the mold shaft, power connection and transmission are carried out between the power input end of the transmission shaft and the mold shaft through a power connecting piece I, a power connecting piece II is arranged between the power output end of the transmission shaft and any group of rotating shafts in any group of chain modules, power connection and transmission are carried out between the power output end of the transmission shaft and any group of rotating shafts in any group of chain modules through a power connecting piece II, a power connecting piece III is arranged between the rotating shafts of two groups of chain modules;

the first power connecting piece/the second power connecting piece are both belt transmission structures, and the third power connecting piece is a straight gear transmission structure with a gear transmission ratio of one.

The technical scheme is further improved and optimized.

The water cooling mechanism comprises a water spraying body and a water inlet pipeline, the water spraying body is of a rectangular shell structure provided with an inner cavity and is horizontally and fixedly installed in a cooling water tank, the length extending direction of the water spraying body is parallel to the conveying direction of the chain module, the water spraying body is located right above the chain module, a plurality of groups of spraying holes communicated with the inner cavity of the water spraying body are formed in the lower end face of the water spraying body at even intervals, a connecting nozzle communicated with the inner cavity of the water spraying body is arranged on the upper end face of the water spraying body, one end of the water inlet pipeline is communicated with external water supply equipment, and the other end of the water inlet pipeline is.

The technical scheme is further improved and optimized.

The cooling water tank is also internally provided with a pushing device which is used for assisting in pushing and dropping cooled and molded plastic particles in a molding hole at the discharge end of the molten plastic/chain module in a particle hole communicated with the discharge hole;

the pushing device comprises a pushing shaft, a first pushing mechanism and a second pushing mechanism, the pushing shaft is used for power connection and transmission between the dial plate shaft and the first pushing mechanism/the second pushing mechanism, the first pushing mechanism is used for assisting in pushing molten plastic in a particle hole communicated with the discharge hole, and the second pushing mechanism is used for assisting in pushing plastic particles which are cooled and molded in the molding hole at the discharge end of the chain module;

the bottom of the cooling water tank is provided with a connecting frame, the connecting frame is close to the discharge end of the chain module, the axial direction of the pushing shaft is parallel to the conveying direction of the chain module, one end of the pushing shaft is movably connected with the supporting frame, the other end of the pushing shaft is movably connected with the connecting frame, the pushing shaft can rotate around the axial direction of the pushing shaft, a power transmission piece II is arranged between the pushing shaft and the dial plate shaft, power connection transmission is carried out between the pushing shaft and the dial plate shaft through the power transmission piece II, and the power transmission piece II is of a bevel gear transmission structure;

the pushing mechanism comprises a driving block, a lower pressing plate, a sliding rod and a return spring, wherein a guide sliding sleeve which is coaxial with the discharge hole is vertically arranged on the upper end surface of the upper sealing cover plate, a through hole which is coaxial with the guide sliding sleeve is also arranged on the upper end surface of the upper sealing cover plate, the sliding rod and the guide sliding sleeve are coaxially arranged, the bottom end of the sliding rod is positioned in the guide sliding sleeve, the top end of the sliding rod is positioned right above the guide sliding sleeve, and the sliding guide fit is formed between the sliding rod and the guide sliding sleeve;

the lower pressing plate is horizontally fixed at the top end of the sliding rod, the reset spring is sleeved outside the sliding rod, one end of the reset spring is abutted against the lower pressing plate, the other end of the reset spring is abutted against the upper sealing cover plate, and the elastic force of the reset spring enables the lower pressing plate to do ascending motion;

the driving block is fixed outside the pushing shaft, a lower pressing pin is arranged on the side surface of the driving block facing the lower pressing plate, when the die body is static and not moving, the free end of the lower pressing pin firstly contacts with the upper end surface of the lower pressing plate and drives the lower pressing plate to do descending motion and then is separated from the contact with the lower pressing plate, and when the die body rotates, the lower pressing pin is not in contact with the lower pressing plate;

the second pushing mechanism is arranged on the connecting frame, the structure of the second pushing mechanism is consistent with that of the first pushing mechanism, and the connection relation among the first pushing mechanism, the upper sealing cover plate and the particle hole communicated with the discharge hole is consistent with that among the second pushing mechanism, the connecting frame and the chain module discharge end forming hole.

The technical scheme is further improved and optimized.

The water separation output device comprises a water separation mechanism and a particle storage mechanism, the water separation mechanism is used for receiving the plastic particles and the cooling water discharged by the discharge nozzle and also separating the plastic particles and the cooling water, and the particle storage mechanism is used for receiving the plastic particles separated by the water separation mechanism;

the water separation mechanism comprises an installation shell and a conveying component, the installation shell is fixed on the main frame body and is of a rectangular shell structure with an opening at the upper end and a closed lower end, the cavity bottom of the installation shell can be divided into three parts along the length extending direction of the installation shell and respectively comprises a first discharging section/a second discharging section and a horizontal section, the horizontal section is horizontally positioned between the first discharging section/the second discharging section, the first discharging section/the second discharging section are obliquely arranged, and the distance between the first discharging section/the second discharging section is gradually reduced from bottom to top along the direction vertical to the ground;

the discharge nozzle arranged at the bottom of the cooling water tank is positioned right above the first cavity bottom discharge section of the mounting shell, the lowest point of the first discharge section is connected and communicated with a drainage pipeline, and the lowest point of the second cavity bottom discharge section of the mounting shell is provided with a discharge hole;

the conveying component comprises a conveying piece and a conveying motor, wherein the axial direction of an output shaft of the conveying motor is parallel to the width extending direction of the mounting shell, and the conveying motor is fixed on the side surface of the mounting shell;

the conveying piece comprises a rotating roller and a conveying belt, the axial direction of the rotating roller is parallel to the axial direction of an output shaft of the conveying motor, the rotating roller is movably arranged in the installation shell and can rotate around the axial direction of the rotating roller, two groups of rotating rollers are arranged along the length extending direction of the installation shell, two groups of rotating rollers are positioned in the same horizontal plane, the conveying belt is arranged between the two groups of rotating rollers, a plurality of groups of water filtering holes penetrating through the thickness of the conveying belt are uniformly arranged on the surface of the conveying belt at intervals, the feeding end of the conveying piece is positioned under a discharging nozzle arranged at the bottom of the cooling water tank, and the discharging end of the conveying piece is positioned right above a discharging hole arranged at the two;

the power input end of any one of the two groups of rollers extends out of the mounting shell, a first power transmission part is arranged between the power input end of the group of rollers and the power output end of the conveying motor, power connection transmission is carried out between the power input end of the group of rollers and the power output end of the conveying motor through the first power transmission part, and the first power transmission part comprises a driving belt wheel coaxially fixed outside the power output end of the conveying motor, a driven belt wheel coaxially fixed at the power input end of the rollers and a conveying belt arranged between the driving belt wheel and the driven belt wheel;

the granule store the mechanism include the bin, the bin is installed on the body frame body and the bin is upper end opening, lower extreme confined rectangle box structure, the bin still is located to set up under the relief hole of installing the two minimum points of shell chamber bottom ejection of compact section department.

The technical scheme is further improved and optimized.

The water separation mechanism also comprises a fan, the fan is fixedly arranged at the bottom of the cooling water tank and is also positioned right above the mounting shell, the wind direction of the fan is blown from top to bottom, two side surfaces of the mounting shell, which are vertical to the width extension direction of the mounting shell, are uniformly provided with a plurality of groups of air exhaust holes, and two side surfaces of a conveying belt of the conveying piece, which are along the width direction of the conveying belt, are contacted with the wall of the mounting shell;

the particle storage mechanism also comprises a translation component for drawing the storage box to slide in a reciprocating way;

a sliding part is arranged between the storage box and the main frame body, the sliding part forms sliding guide fit between the storage box and the main frame body, the sliding part comprises a sliding bulge arranged at the bottom of the storage box and a sliding rail arranged on the main frame body, and the sliding bulge and the sliding rail form sliding guide fit with the guide direction parallel to the conveying direction of the conveying part;

the translation component comprises a translation motor and a swing rod, the axial direction of an output shaft of the translation motor is parallel to the axial direction of an output shaft of the conveying motor, the translation motor is fixed on the main frame body, one end of the swing rod is hinged with a power output end of the translation motor, the other end of the swing rod is hinged with the storage box, and a hinged shaft formed at the hinged position between the swing rod and the power output end of the translation motor and a hinged shaft formed at the hinged position between the swing rod and the storage box are all parallel to the width extending direction of the.

Compared with the prior art, the plastic particle injection molding device has the advantages that plastic particles meeting production requirements can be obtained, and in the process of melting, molding and conveying, the plastic can be kept in a molten state in the mold body by the heating element arranged outside the mold body; in the cooling forming process, cooling water is in contact with molten plastic in a spraying mode, so that the contact area between the cooling water and the molten plastic can be increased, and the cooling water is cooled in a flowing water mode, so that the cooling effect is better; in the plastic particle output process, the air drying treatment is carried out on the moisture on the surface of the plastic particles through the fan, so that the heat consumption required by melting the plastic particles in the subsequent utilization process is reduced, and meanwhile, the long-time storage of the plastic particles is facilitated; in addition, in the process that molten plastic after particles are molded in the die body falls and plastic particles after cooling molding fall and are output, the plastic falls under the assistance of the pushing device, so that the situation that the plastic cannot fall in time due to the adhesion between the plastic and the hole wall of the particle hole of the die body/the forming hole of the chain die piece and influences the subsequent plastic molding can be avoided.

Drawings

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

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic diagram of the cooperation among the mold device, the water-cooling molding device and the pushing device of the present invention.

Fig. 5 is a schematic diagram of the cooperation among the mold device, the water-cooling molding device and the pushing device of the present invention.

Fig. 6 is a schematic structural view of the die mechanism of the present invention.

Fig. 7 is a schematic diagram of the mating of the components in the mold mechanism of the present invention.

Fig. 8 is a schematic cross-sectional view of the upper closure flap of the present invention.

Fig. 9 is a schematic structural view of the feeding mechanism of the present invention.

Fig. 10 is a schematic cross-sectional view of the feed mechanism of the present invention.

Fig. 11 is a schematic structural view of an intermittent drive mechanism of the present invention.

Fig. 12 is a schematic diagram of the driving member and the driven member of the present invention.

Fig. 13 is a schematic structural view of a water-cooling molding apparatus according to the present invention.

Fig. 14 is a schematic structural view of the chain mold mechanism of the present invention.

Fig. 15 is a schematic structural view of the mounting base of the present invention.

FIG. 16 is a schematic structural view of a chain module of the present invention.

FIG. 17 is a schematic view of the cooperation between the mold blocks of two sets of chain mold elements of the present invention.

Fig. 18 is a schematic sectional view of the water cooling mechanism of the present invention.

Fig. 19 is a schematic structural view of the power connection mechanism of the present invention.

Fig. 20 is a partial structural schematic view of the power coupling mechanism of the present invention.

Fig. 21 is a schematic structural diagram of a pushing device of the present invention.

Fig. 22 is a partial structural schematic diagram of the pushing device of the present invention.

Fig. 23 is a schematic structural view of a first pushing mechanism and an upper sealing cover plate of the present invention.

Fig. 24 is a schematic matching view of the connecting frame and the second pushing mechanism 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 a water separating mechanism of the present invention.

Fig. 27 is a schematic view of the internal structure of the water separating mechanism of the present invention.

Fig. 28 is a schematic structural view of a particle storage mechanism of the present invention.

Detailed Description

The invention has the advantages that the plastic receiving and particle forming device can receive the molten plastic and carry out particle forming on the plastic, plastic particles meeting production requirements can be obtained, and the plastic can be kept in a molten state in the die body by the heating element arranged outside the die body in the process of melting, shaping and conveying; in the cooling forming process, cooling water is in contact with molten plastic in a spraying mode, so that the contact area between the cooling water and the molten plastic can be increased, and the cooling water is cooled in a flowing water mode, so that the cooling effect is better; in the plastic particle output process, the air drying treatment is carried out on the moisture on the surface of the plastic particles through the fan, so that the heat consumption required by melting the plastic particles in the subsequent utilization process is reduced, and meanwhile, the long-time storage of the plastic particles is facilitated; in addition, in the process that molten plastic after particles are molded in the die body falls and plastic particles after cooling molding fall and are output, the plastic falls under the assistance of the pushing device, so that the situation that the plastic cannot fall in time due to the adhesion between the plastic and the hole wall of the particle hole of the die body/the forming hole of the chain die piece and influences the subsequent plastic molding can be avoided.

Fashioned circulation chain mould of plastic granules, it includes the body frame body, mold device 100, water-cooling forming device 200, separation of water output device 300, fixed mounting has upper end opening, lower extreme confined coolant tank on the body frame body, mold device 100 and water-cooling forming device 200 all install in coolant tank, separation of water output device 300 is located coolant tank under.

The mold device 100 is used for receiving molten plastic and molding the molten plastic into suitable granules, the water-cooling molding device 200 is used for receiving the granular molten plastic output by the mold device 100 and performing water-cooling solidification molding processing on the granular molten plastic, and the water-separating output device 300 is used for receiving a cooling water and plastic granule mixture output by the water-cooling molding device 200 and performing separation output processing on the mixture.

The die device 100 comprises a feeding mechanism 110, a die mechanism 120 and an intermittent driving mechanism 130, wherein the feeding mechanism 110 is used for receiving molten plastic and conveying the molten plastic into the die mechanism 120, the die mechanism 120 is used for providing a die for molding the molten plastic into proper granules, and the intermittent driving mechanism 130 is used for driving the die mechanism 120 to axially rotate around itself and drawing the granular molten plastic to be right above the feeding end of the water-cooling molding device 200.

The die mechanism 120 comprises a die body 121, an upper sealing cover plate 122 and a lower sealing cover plate 123, wherein the upper and lower sealing cover plates are horizontally arranged, a first vertical plate is arranged between the bottom of the lower sealing cover plate 123 and the bottom of the cold water tank, the lower sealing cover plate 123 is fixed at the bottom of the cooling water tank through the first vertical plate, a second vertical plate is arranged at the bottom of the upper sealing cover plate 122, and the upper sealing cover plate 122 is fixed at the upper end face of the lower sealing cover plate 123 through the second vertical plate.

The die body 121 is a cylindrical structure which is axially vertical to the ground, the die body 121 is arranged in the area between the upper and lower closed cover plates, the die body 121 can axially rotate around the die body 121, the upper and lower end surfaces of the die body 121 are respectively contacted with the upper and lower closed cover plates to form sealing fit, and the outer circular surface of the die body 121 is also provided with a heating element 1212 which is used for heating the die body 121 and keeping the plastic in the die body in a molten state in a matching manner.

The die body 121 is provided with particle holes penetrating through the axial thickness of the die body 121, the particle holes are arranged in a plurality of groups in an array manner along the circumferential direction of the die body 121, the upper end surface of the die body 121 is coaxially provided with a die shaft 1211, the top end of the die shaft 1211 penetrates through the upper sealing cover plate 122 and is positioned above the upper sealing cover plate 122, and the die shaft 1211 rotates around the self axial direction and pulls the die body 121 to rotate synchronously.

The upper sealing cover plate 122 is provided with a feed hole 1221 penetrating through the thickness of the upper sealing cover plate, the feed hole 1221 can be divided into a cylindrical section and a circular truncated cone section along the axial direction of the feed hole 1221 from bottom to top, the large end of the circular truncated cone section is positioned above the small end, the small end of the circular truncated cone section is connected and communicated with the cylindrical section, the bottom end of the cylindrical section is communicated with any group of particle holes, and the shape of the bottom end of the cylindrical section and the shape of the particle holes are consistent with the shape.

The lower sealing cover plate 123 is provided with a discharge hole 1231 penetrating through the thickness of the lower sealing cover plate, an included angle between the discharge hole 1231 and the feed hole 1221 is one hundred eighty degrees, the discharge hole 1231 is communicated with the corresponding particle holes in an interconnecting manner, and the feed end of the water-cooling forming device 200 is positioned under the discharge hole 1231.

The molten plastic is conveyed into the feeding hole 1221 of the upper closed cover plate 122 by the feeding mechanism 110 and finally flows into the particle hole communicated with the feeding hole 1221, meanwhile, the molten plastic in the particle hole communicated with the discharging hole 1231 falls into the feeding end of the water-cooled forming device 200, and then the intermittent driving mechanism 130 periodically drives the mold body 121 to rotate around the axial direction of the mold body and continues the process, and so on.

The feeding mechanism 110 comprises a feeding pipeline 111, one end of the feeding pipeline 111 is used for receiving molten plastics, the other end of the feeding pipeline 111 is connected and communicated with a connecting pipeline 1111, the other end of the connecting pipeline 1111 is fixedly connected with the upper end face of the upper closed cover plate 122, and the connecting pipeline 1111 is communicated with the feeding hole 1221.

The molten plastic is conveyed by the feed line 111 and the connecting line 1111 into the inlet opening 1221 and finally into the particle openings which communicate with the inlet opening 1221.

More specifically, in the process that the intermittent driving mechanism 130 periodically drives the die body 121 to rotate around the axial direction of the die body, the particle hole is temporarily sealed by the upper/lower sealing cover plate, the particle hole is temporarily disconnected from the feeding hole 1221, and in the process, molten plastic is accumulated in the feeding pipe 111 and the connecting pipe 1111 to cause pressure to the feeding pipe 111/the connecting pipe 1111, and in order to solve the problem, the feeding pipe 111 is provided with the pressure relief member 112.

The pressure relief member 112 includes a pressure relief pipe 1121, a pressure relief piston 1122, a pressure relief spring 1123, one end of the pressure relief pipe 1121 is connected to the feeding pipe 111, the other end of the pressure relief pipe 1121 is provided with a closed end cap in a matching manner, the pressure relief piston 1122 is arranged in the pressure relief pipe 1121, the pressure relief piston and the feeding pipe 111 form a sealed sliding guide fit therebetween, one end of the pressure relief spring 1123 abuts against the closed end cap, the other end of the pressure relief spring abuts against the pressure relief piston 1122, and the pressure relief piston 1122 is moved close to the feeding pipe 111 by the elastic.

During the process that molten plastic is conveyed into a particle hole communicated with the feeding hole 1221 through the feeding pipeline 111, the connecting pipeline 1111 and the feeding hole 1221, the pressure relief spring 1123 is not compressed, and the position of the pressure relief piston 1122 is close to the communication position between the feeding pipeline 111 and the pressure relief pipeline 1121;

during the process of the particle hole being sealed by the upper/lower closing cover plate for a short time, the molten plastic will push the pressure relief piston 1122 to move close to the closing cover plate, so as to achieve the purpose of pressure relief and protecting the feeding pipe 111/connecting pipe 1111, and then when the particle hole is communicated with the feeding hole 1221 again, the elastic force of the pressure relief spring 1123 will make the pressure relief member 112 return to the original position, and so on.

The intermittent driving mechanism 130 is of an intermittent sheave structure, the intermittent driving mechanism 130 comprises a driving motor 131, a driving part and a driven part, a support frame is further arranged on the upper end face of the lower sealing cover plate 123, and the driving motor 131 is vertically fixed on the support frame.

The driven member includes a driven sheave 135, the driven sheave 135 is coaxially fixed to the outside of the top end of the mold shaft 1211, the outer circumferential surface of the driven sheave 135 is provided with intermittent grooves 136 penetrating the axial thickness of the driven sheave 135, the guiding direction of the intermittent grooves 136 is parallel to the diameter direction of the driven sheave 135 at the corresponding point, the intermittent grooves 136 are arrayed in several groups along the circumferential direction of the driven sheave 135, and the number of the intermittent grooves 136 is equal to the number of the particle holes.

The driving part comprises a dial shaft 132 and a driving dial 133, one end of the dial shaft 132 is coaxially and fixedly connected with the power output end of the driving motor 131, the other end of the dial shaft is movably connected with the upper sealing cover plate 122, and the dial shaft 132 can axially rotate around itself.

The driving dial 133 is coaxially fixed outside the dial shaft 132, a dial pin 134 matched with the intermittent groove 136 is arranged on the upper end surface of the driving dial 133, the dial shaft 132 rotates around the axial direction of the dial shaft 132 and pulls the driving dial 133/the dial pin 134 to synchronously rotate, in the process of a period of rotation of the dial shaft 132, the dial pin 134 rotates after being positioned in the intermittent groove 136 and then is separated from the intermittent groove 136, the dial pin 134 is matched with the intermittent groove 136 and pulls the driven grooved pulley 135 to rotate, and the rotational displacement is equal to the displacement between two adjacent groups of particle holes/intermittent grooves 136.

The driving motor 131 operates and pulls the dial plate shaft 132 to rotate around the self axial direction, in the process of a period of rotation of the dial plate shaft 132, the dial pin 134 can rotate after being positioned in the intermittent groove 136 and then is separated from the intermittent groove 136, when the dial pin 134 is positioned in the intermittent groove 136, the dial pin 134 is matched with the intermittent groove 136 to pull the driven sheave 135 to rotate, and the rotation displacement is equal to the displacement between two adjacent groups of particle holes/intermittent grooves 136; during the disengagement of the pin 134 from the intermittent groove 136, the driven member is stationary while the driving member rotates and molten plastic flows into the granular holes communicating with the feed holes 1221.

The water-cooling forming device 200 comprises a chain mold mechanism 210, a power connection mechanism 220 and a water-cooling mechanism 230, wherein the chain mold mechanism 210 is used for receiving granular molten plastic which falls and is output through the discharge hole 1231 and conveying the granular molten plastic to the direction of the feed end of the water separation output device 300, the water-cooling mechanism 230 is used for spraying cooling water to the molten plastic and solidifying and forming the plastic in the conveying process of the chain mold mechanism 210, and the power connection mechanism 220 is used for power connection and transmission between the mold shaft 1211 and the chain mold mechanism 210.

The chain mold mechanism 210 comprises a mounting base 211 and a chain mold 212, wherein the mounting base 211 is horizontally fixed at the bottom of the cooling water tank, the mounting base 211 is positioned below the mold mechanism 120, a contact plate 2111 is horizontally fixed at the middle position of the upper end face of the mounting base 211, the length extending direction of the contact plate 2111 is parallel to the length extending direction of the mounting base 211, a closing strip 2112 is horizontally fixed at the middle position of the contact plate 2111, and the length extending direction of the closing strip 2112 is parallel to the length extending direction of the mounting base 211.

The chain module 212 includes a rotating shaft 2121, two chain wheels 2122, two chains 2123, and a mold block 2124, wherein the rotating shaft 2121 is vertically movably mounted on the mounting base 211 and can rotate around its own axis, the rotating shaft 2121 is provided with two sets along the length extending direction of the mounting base 211, the chain wheels 2122 are coaxially fixed outside the rotating shaft 2121, the two sets of chain wheels 2122 are correspondingly provided, and the chain 2123 is disposed between the two sets of chain wheels 2122.

The die blocks 2124 are fixed on the chain 2123, the side of the die blocks 2124 facing away from the chain 2123 is provided with forming grooves which penetrate the height of the die blocks and have semicircular horizontal cross sections, and the die blocks 2124 are arranged in a plurality of groups in an array along the extending direction of the chain 2123.

The chain modules 212 are provided with two groups and are respectively positioned at one side of the extension direction of the self length of the sealing strip 2112, the two groups of chain modules 212 are symmetrically distributed, forming holes which are matched with the particle holes arranged on the die body 121 and are in a cylindrical hole structure can be formed between the two groups of chain modules 212 and the corresponding forming grooves, the lower hole openings of the forming holes are tightly contacted with the upper end surface of the sealing strip 2112, the sealing strip 2112 can seal the lower hole openings of the forming holes, and the forming holes at the feeding end of the chain modules 212 are positioned right below the particle holes communicated with the discharge hole 1231.

The installation base 211 on still seted up and dodged the hole and dodge the hole and be located under the shaping hole of chain module 212 discharge end, cooling water tank's bottom be provided with and dodge the hole and the bin outlet is located and dodges under the hole.

The molten plastic flows into the particle hole communicated with the feeding hole 1221, and simultaneously the molten plastic in the particle hole communicated with the discharging hole 1231 falls into the forming hole at the feeding end of the chain module 212, and meanwhile, the two groups of forming grooves forming the forming hole at the discharging end of the chain module 212 are separated from each other, so that the cooled and formed plastic particles in the plastic particles fall into the water separation output device 300 positioned right below the cooling water tank through the avoiding hole and the discharging nozzle;

then the driving motor 131 runs for a period, wherein the mold body 121/mold shaft 1211 rotates first and the rotational displacement is equal to the displacement between the two adjacent sets of particle holes, the mold shaft 1211 rotates and also pulls the chain mold 212 to move through the power connection mechanism 220 and the movement displacement is equal to the distance between the two adjacent sets of forming holes, then the mold body 121/mold shaft 1211 is stationary, the molten plastic which flows into the particle holes communicated with the feeding hole 1221 and the particle holes communicated with the discharging hole 1231 falls into the forming holes at the feeding end of the chain mold 212, the cooled and formed plastic particles in the forming holes at the discharging end of the chain mold 212 fall down into the water separation output device 300, and the above processes are repeated;

in addition, in the above process, the two sets of forming grooves, in which the chain modules 212 are separated from each other, may re-form forming holes at the feeding ends thereof; during the process of conveying the molten plastic from the feeding end to the discharging end of the chain module 212, the water cooling mechanism 230 sprays cooling water to the molten plastic and cools and shapes the plastic.

The power connection mechanism 220 comprises a transmission shaft 221, the transmission shaft 221 is vertically fixed in the cooling water tank, a first power connection piece 222 is arranged between the power input end of the transmission shaft 221 and the mold shaft 1211 and is in power connection transmission through the first power connection piece 222, a second power connection piece 223 is arranged between the power output end of the transmission shaft 221 and any set of rotating shafts 2121 in any set of chain modules 212 and is in power connection transmission through the second power connection piece 223, and a third power connection piece 224 is arranged between the rotating shafts 2121 of two sets of chain modules 212 and is in power connection transmission through the third power connection piece 224.

Specifically, the first power connecting piece 222/the second power connecting piece 223 are both belt transmission structures, and the third power connecting piece 224 is a straight gear transmission structure with a gear transmission ratio of one.

While the mold shaft 1211 rotates, it pulls the two sets of chain modules 212 to move through the first power transmission member 222, the second power transmission member 221, the second power transmission member 223 and the third power transmission member 224, and the displacement of one rotation of the mold shaft 1211 is equal to the distance between the two adjacent sets of particle holes, and the displacement of one movement of the chain module 212 is equal to the distance between the two adjacent sets of molding holes.

The water cooling mechanism 230 comprises a water spraying body 231 and a water inlet pipeline 233, the water spraying body 231 is a rectangular shell structure provided with an inner cavity and is horizontally and fixedly installed in the cooling water tank, the length extending direction of the water spraying body 231 is parallel to the conveying direction of the chain module 212, the water spraying body 231 is located right above the chain module 212, a plurality of groups of spraying holes communicated with the inner cavity of the water spraying body 231 are uniformly formed in the lower end face of the water spraying body 231 at intervals, a connecting nozzle 232 communicated with the inner cavity of the water spraying body 231 is arranged on the upper end face of the water spraying body 231, one end of the water inlet pipeline 233 is communicated with external water supply equipment, and the other end of the water inlet pipeline.

The cooling water supplied from the external water supply apparatus is sprayed to the chain module 212 through the water inlet pipe 233, the connection nozzle 232, the water spray 231, and the spray holes, thereby supplying the chain module 212 with the cooling water required for cooling molding, and then the water is discharged through the discharge nozzle at the bottom of the cold water tank.

More specifically, in the process that molten plastic in a particle hole communicated with the discharge hole 1231 drops into a forming hole at the feed end of the chain module 212 and cooled and formed plastic particles in a forming hole at the discharge end of the chain module 212 drop downwards, the phenomenon that the plastic and the wall of the particle hole/forming hole are bonded and the plastic particles cannot drop downwards smoothly can occur, so that adverse effects are caused to the subsequent plastic forming process, and in order to solve the problem, the cooling water tank is further internally provided with a pushing device 400 which is used for assisting in pushing the cooled and formed plastic particles in the forming hole at the discharge end of the molten plastic/chain module 212 communicated with the discharge hole 1231 to drop.

The pushing device 400 comprises a pushing shaft 410, a first pushing mechanism 420 and a second pushing mechanism 430, wherein the pushing shaft 410 is used for power connection and transmission between the dial plate shaft 132 and the first pushing mechanism 420/the second pushing mechanism 430, the first pushing mechanism 420 is used for assisting in pushing molten plastic in a particle hole communicated with the discharge hole 1231, and the second pushing mechanism 430 is used for assisting in pushing plastic particles which are cooled and molded in a molding hole at the discharge end of the chain module 212.

The bottom of the cooling water tank is provided with a connecting frame, the connecting frame is close to the discharge end of the chain module 212, the axial direction of the pushing shaft 410 is parallel to the conveying direction of the chain module 212, one end of the pushing shaft 410 is movably connected with the supporting frame, the other end of the pushing shaft 410 is movably connected with the connecting frame, the pushing shaft 410 can rotate around the self axial direction, a power transmission piece II 411 is arranged between the pushing shaft 410 and the dial plate shaft 132, power connection transmission is carried out between the pushing shaft 410 and the dial plate shaft 132 through the power transmission piece II 411, and particularly, the power transmission piece II 411 is of a bevel gear transmission structure.

The first pushing mechanism 420 comprises a driving block 421, a lower pressing plate 423, a sliding rod 424 and a return spring 425, wherein a guide sliding sleeve 1222 coaxially arranged with the discharge hole 1231 is vertically arranged on the upper end surface of the upper sealing cover plate 122, a through hole coaxially arranged with the guide sliding sleeve 1222 is further arranged on the upper end surface of the upper sealing cover plate 122, the sliding rod 424 and the guide sliding sleeve 1222 are coaxially arranged, the bottom end of the sliding rod 424 is located in the guide sliding sleeve 1222, the top end of the sliding rod 424 is located right above the guide sliding sleeve 1222, and a sliding guide fit is formed between the sliding rod 424 and the guide sliding sleeve 1222.

The lower pressing plate 423 is horizontally fixed at the top end of the sliding rod 424, the reset spring 425 is sleeved outside the sliding rod 424, one end of the reset spring 425 abuts against the lower pressing plate 423, the other end of the reset spring 425 abuts against the upper sealing cover plate 422, and the elastic force of the reset spring 425 enables the lower pressing plate 423 to do ascending motion.

The driving block 421 is fixed outside the pushing shaft 410, the side surface of the driving block 421 facing the lower pressing plate 423 is provided with a lower pressing pin 422, and when the die body 121 is stationary, the free end of the lower pressing pin 422 contacts with the upper end surface of the lower pressing plate 423 first and drives the lower pressing plate 423 to move downward and then is separated from the contact with the lower pressing plate 423, and when the die body 122 rotates, the lower pressing pin 422 is not in contact with the lower pressing plate 423.

The second pushing mechanism 430 is installed on the connecting frame, the structure of the second pushing mechanism 430 is consistent with that of the first pushing mechanism 420, and the connection relation among the first pushing mechanism 420, the upper sealing cover plate 122 and the particle hole communicated with the discharge hole 1231 is consistent with that among the second pushing mechanism 430, the connecting frame and the forming hole at the discharge end of the chain module 212.

When the mold body 121 is stationary, the dial plate shaft 132 rotates to drive the slide rod 424 to move downward by the cooperation of the lower pressing pin 422 and the lower pressing plate 423, the free end of the slide rod 424 penetrates through the through hole of the upper closed cover plate 122 and pushes molten plastic in the particle hole, the molten plastic finally drops downward into the molding hole at the feeding end of the chain mold 212 through the discharge hole 1231, the lower pressing pin 422 is separated from contact with the lower pressing plate 423, and the slide rod 424 is driven by the elastic force of the return spring 425 to return to the original position;

subsequently, during the rotation of the mold body 121, the pressing pin 422 is not yet in contact with the pressing plate 423 and the pushing mechanism one 420 is finally restored to the original state.

The first pushing mechanism 420 operates while the second pushing mechanism 430 operates synchronously, and the operation process of the second pushing mechanism 430 is consistent with that of the first pushing mechanism 420.

The water separation output device 300 comprises a water separation mechanism 310 and a particle storage mechanism 320, wherein the water separation mechanism 310 is used for receiving the plastic particles discharged through the discharge nozzle and the cooling water and further performing separation treatment on the plastic particles and the cooling water, and the particle storage mechanism 320 is used for receiving the plastic particles separated by the water separation mechanism 310.

The water separation mechanism 310 comprises an installation shell 311 and a conveying component, the installation shell 311 is fixed on the main frame body, the installation shell 311 is of a rectangular shell structure with an open upper end and a closed lower end, the cavity bottom of the installation shell 311 can be divided into three parts along the length extending direction of the installation shell 311, the three parts are respectively a first discharging section/second discharging section and a horizontal section, the horizontal section is horizontally positioned between the first discharging section/second discharging section, the first discharging section/second discharging section is obliquely arranged, and the distance between the first discharging section/second discharging section is gradually reduced from bottom to top along the direction perpendicular to the ground.

The discharge nozzle arranged at the bottom of the cooling water tank is positioned right above the first cavity bottom discharge section of the mounting shell 311, the lowest point of the first discharge section is connected and communicated with a drainage pipeline 3111, and the lowest point of the second cavity bottom discharge section of the mounting shell 311 is provided with a discharge hole.

The conveying component comprises a conveying piece 312 and a conveying motor 313, wherein the axial direction of an output shaft of the conveying motor 313 is parallel to the width extending direction of the mounting shell 311, and the conveying motor 313 is fixed on the side surface of the mounting shell 311.

Carry piece 312 including changeing roller, conveyer belt, the axial of changeing the roller is on a parallel with the output shaft axial of conveying motor 313 and changes roller movable mounting in installation shell 311 and can rotate around self axial, change the roller and be provided with two sets ofly and two sets of roller that change along the length extending direction of installation shell 311 and be located same horizontal plane, the conveyer belt sets up two sets of roller between and the even interval in surface of conveyer belt has seted up a plurality of groups and has run through the drainage hole of its thickness, the feed end of carrying piece 312 be located and set up under the bin outlet of cooling water tank bottom, the discharge end of carrying piece 312 is located and sets up directly over the relief hole of two minimum points of discharge segments at the bottom of installation shell 311 chamber.

The power input end of any one of the two sets of rotating rollers extends out of the mounting shell 311, a power transmission part 314 is arranged between the power input end of the set of rotating rollers and the power output end of the conveying motor 313, power connection transmission is carried out between the power input end of the set of rotating rollers and the power output end of the conveying motor 313 through the power transmission part 314, and specifically, the power transmission part 314 comprises a driving belt wheel coaxially fixed outside the power output end of the conveying motor 313, a driven belt wheel coaxially fixed at the power input end of the rotating rollers, and a conveying belt arranged between the driving belt wheel and the driven belt wheel.

The particle storage mechanism 320 comprises a storage box 323, the storage box 323 is installed on the main frame body, the storage box 323 is a rectangular box structure with an open upper end and a closed lower end, and the storage box 323 is also positioned right below a discharge hole at the two lowest points of the discharging section at the bottom of the cavity of the installation shell 311.

The plastic granules and the cooling water discharged from the discharge nozzle all drop downwards into the mounting shell 311, the water can be directly discharged through the water filtering holes of the conveyer belt and the water draining pipe 3111 arranged at the lowest point of the discharging section at the bottom of the cavity of the mounting shell 311, the plastic granules are conveyed along the conveying piece 312 to the direction of the discharge hole arranged at the lowest point of the discharging section at the bottom of the cavity of the mounting shell 311, and the plastic granules finally drop into the storage box 323 through the discharge hole.

Preferably, most of the cooling water is directly discharged through the water discharge pipe 3111 during the transportation of the plastic pellets through the transportation member 312, but the surface of the plastic pellets still has residual moisture, the moisture will have negative effects on the subsequent plastic particle utilization process such as increased heat consumption, meanwhile, the moisture can also influence the storage of the subsequent plastic particles, the plastic particles can generate the mildew phenomenon in the long-time storage process, in order to solve the series of problems, the water separation mechanism 310 further comprises a fan 315, the fan 315 is fixedly installed at the bottom of the cooling water tank, the fan 315 is also located right above the installation shell 311, the wind direction of the fan 315 is blown from top to bottom, the two side surfaces of the mounting shell 311 perpendicular to the width extension direction thereof are uniformly provided with a plurality of groups of air exhaust holes, two side surfaces of the conveying belt of the conveying piece 312 along the self belt width direction are contacted with the cavity wall of the mounting shell 311; in the process of conveying plastic particles by the conveying piece 312, the fan 315 operates and performs surface moisture air-drying treatment on the plastic particles, air generated by the fan 315 can be discharged through the air exhaust holes in the side surface of the mounting shell 311, and meanwhile, the two side surfaces of the conveying belt are in contact with the wall of the mounting shell 311, so that the plastic particles on the conveying belt cannot be blown away by the air.

More specifically, because the plastic granules directly drops to storage box 323 through the relief hole that sets up in two lowest points on installation shell 311 chamber bottom ejection of compact section, the phenomenon that plastic granules pile up one department in the storage box 323 can appear, and there is not or has a small amount of plastic granules in the both sides of plastic pile point, has seriously influenced the once quantity of storing plastic granules of storage box 323, need frequently take out the plastic granules in the storage box 323, in order to solve this problem, granule storage mechanism 320 still include the translation component that pulls storage box 323 and carry out reciprocal slip.

The storage box 323 and the main frame body between be provided with the sliding part and the sliding part constitutes the slip direction cooperation between the two, specifically, the sliding part is including setting up in the slip arch of storage box 323 bottom, setting up the slide rail on the main frame body, constitutes the slip direction cooperation that the direction of guide is on a parallel with conveying direction of conveying piece 312 between slip arch and the slide rail.

The translation member comprises a translation motor 321 and a swing rod 322, the axial direction of an output shaft of the translation motor 321 is parallel to the axial direction of an output shaft of the conveying motor 313, the translation motor 321 is fixed on the main frame body, one end of the swing rod 322 is hinged with the power output end of the translation motor 321, the other end of the swing rod 322 is hinged with the storage box 323, a hinge shaft formed at the hinged position between the swing rod 322 and the power output end of the translation motor 321, and a hinge shaft formed at the hinged position between the swing rod 322 and the storage box 323 are parallel to the width extension direction of the installation.

The translation motor 321 operates and pushes and pulls the storage box 323 to slide back and forth along the guiding direction of the sliding piece through the swing rod 322, so that plastic particles falling into the storage box 323 through a discharge hole arranged at the two lowest points of the discharge section at the bottom of the cavity of the mounting shell 311 are uniformly distributed in the storage box 323, and the phenomenon that the plastic particles are only accumulated at one position cannot occur.

Claims

1. The circulating chain type die for plastic particle molding is characterized by comprising a main frame body, a die device, a water-cooling molding device and a water separation output device, wherein a cooling water tank with an opening at the upper end and a closed lower end is fixedly arranged on the main frame body;

2. The plastic particle molding circulating chain type mold according to claim 1, wherein the mold device comprises a feeding mechanism, a mold mechanism and an intermittent driving mechanism, the feeding mechanism is used for receiving molten plastic and conveying the molten plastic into the mold mechanism, the mold mechanism is used for providing a mold for molding the molten plastic into proper particles, and the intermittent driving mechanism is used for driving the mold mechanism to axially rotate around the mold mechanism and drawing the particles of the molten plastic to be right above the feeding end of the water-cooling molding device;

3. The plastic particle molding circulating chain type mold according to claim 2, wherein the feeding mechanism comprises a feeding pipeline, one end of the feeding pipeline is used for receiving molten plastic, the other end of the feeding pipeline is connected and communicated with a connecting pipeline, the other end of the connecting pipeline is fixedly connected with the upper end surface of the upper closed cover plate, and the connecting pipeline is communicated with the feeding hole;

4. The plastic particle molding circulating chain type mold according to claim 2, wherein the intermittent driving mechanism is an intermittent grooved wheel structure, the intermittent driving mechanism comprises a driving motor, a driving part and a driven part, a support frame is further arranged on the upper end surface of the lower sealing cover plate, and the driving motor is vertically fixed on the support frame;

5. The circulating chain type mold for plastic particle molding according to claim 2, wherein the water-cooling molding device comprises a chain mold mechanism, a power connection mechanism and a water-cooling mechanism, the chain mold mechanism is used for receiving granular molten plastic dropped and output through the discharge hole and conveying the granular molten plastic to the direction of the feed end of the water separation output device, the water-cooling mechanism is used for spraying cooling water to the molten plastic and solidifying and molding the plastic in the conveying process of the chain mold mechanism, and the power connection mechanism is used for power connection and transmission between the mold shaft and the chain mold mechanism;

6. The plastic particle molding circulating chain type mold according to claim 5, wherein the power connecting mechanism comprises a transmission shaft, the transmission shaft is vertically fixed in the cooling water tank, a power connecting piece is arranged between the power input end of the transmission shaft and the mold shaft and performs power connecting transmission between the power input end of the transmission shaft and the mold shaft through the power connecting piece I, a power connecting piece II is arranged between the power output end of the transmission shaft and any set of rotating shafts in any set of chain modules and performs power connecting transmission between the power connecting piece II, a power connecting piece III is arranged between the rotating shafts of two sets of chain modules and performs power connecting transmission between the rotating shafts of the two sets of chain modules through the power connecting piece III;

7. The plastic particle molding circulating chain type mold as claimed in claim 5, wherein the water cooling mechanism comprises a water spraying body and a water inlet pipe, the water spraying body is a rectangular shell structure provided with an inner cavity and is horizontally and fixedly installed in the cooling water tank, the length extending direction of the water spraying body is parallel to the conveying direction of the chain module, the water spraying body is located right above the chain module, a plurality of groups of spraying holes communicated with the inner cavity of the water spraying body are evenly arranged on the lower end face of the water spraying body at intervals, a connecting nozzle communicated with the inner cavity of the water spraying body is arranged on the upper end face of the water spraying body, one end of the water inlet pipe is communicated with an external water supply device, and the other end of the water inlet pipe is communicated with the connecting.

8. The plastic particle molding circulation chain type mold according to claim 2 or 5, wherein the cooling water tank is further provided with a pushing device for assisting in pushing and dropping cooled and molded plastic particles in the molding hole at the discharge end of the molten plastic/chain module in the particle hole communicated with the discharge hole;

9. The plastic particle molding circulating chain type mold according to claim 5, wherein the water separation output device comprises a water separation mechanism and a particle storage mechanism, the water separation mechanism is used for receiving the plastic particles discharged by the discharge nozzle and the cooling water and further separating the plastic particles and the cooling water, and the particle storage mechanism is used for receiving the plastic particles separated by the water separation mechanism;

10. The plastic particle molding circulating chain type mold according to claim 9, wherein the water separating mechanism further comprises a fan, the fan is fixedly installed at the bottom of the cooling water tank and is located right above the installation shell, the wind direction of the fan is blown from top to bottom, a plurality of groups of air exhaust holes are uniformly formed in two side surfaces of the installation shell, which are perpendicular to the width extending direction of the installation shell, and two side surfaces of the conveying belt of the conveying member along the width direction of the conveying belt are in contact with the wall of the installation shell;