CN211891775U - Hot runner system for thermosensitive injection molding material - Google Patents

Abstract

The utility model discloses a hot runner system to heat sensitivity material of moulding plastics contains the flow distribution plate inside a first diversion channel of having seted up of flow distribution plate the flow distribution plate bottom just is located the crossing position of first diversion channel vector and has seted up a cutter recess the flow distribution plate periphery side has been seted up a plurality of and has been inserted the recess install in the cutter recess one with the rotatory cutter of runner that the crossing position phase-match rotary-cut of first diversion channel vector corresponds, every it all detachably inlays in the recess to be equipped with one and inserts, at every a second diversion channel has all been seted up in the embedding, first diversion channel respectively with cutter recess and setting are at every second diversion channel in the embedding is linked together. The utility model has the advantages that: the processing preparation is convenient, and the ann tears the convenience open, can effectively guarantee that the defective material in hot runner passageway is cleared up completely and the sanitization.

Description

Hot runner system for thermosensitive injection molding material

Technical Field

The utility model relates to a hot runner system belongs to injection mold technical field, and specific saying so relates to a hot runner system and application method to heat sensitivity injection moulding material.

Background

When the heat-sensitive material is burnt, carbonized and yellowed, the conventional hot runner system can only melt other cleaning materials, then the burnt heat-sensitive residual materials are stripped from the inner wall of the runner of the flow distribution plate by utilizing the scouring and melting viscosity of the heat-sensitive material, and finally the hot nozzle is extruded by injecting glue, the time required by the whole cleaning process is usually more than 10 hours, and when the heat-sensitive material is carbonized and burnt seriously under the common condition, the corrosive power is very strong, the inner wall of the runner of the flow distribution plate is corroded to a certain degree, so that local material change and damage are generated, and the partial change material can be occasionally and irregularly stripped and doped into the post-melting plastic; the metal residues cannot be melted and carried out of the inner walls of the charging barrel and the screw rod by using cleaning materials, so that one of the results is that the injection hole of the hot nozzle is blocked at the later stage to damage a hot runner system.

Secondly, because the heat-sensitive material has the characteristics of temperature sensitivity and temperature control instability, the conventional hot runner system can only be melted into a flowing injection molding extrusion state, but the long-term stable state of the conventional hot runner system is difficult to ensure, and particularly when the heat-sensitive material is burnt, carbonized and yellowed, the conventional hot runner structure cannot quickly and completely and cleanly remove the waste materials (the conventional hot runner splitter plate cannot be disassembled due to integral manufacture); the other result is that the machine is stopped for a long time, the screw of the charging barrel is disassembled, the polishing and the grinding are carried out, and then the machine is installed and debugged again for reproduction; and such processes or conditions can occur frequently, severely limiting production efficiency and efficiency.

In addition, in the conventional hot runner, the processing of the plastic flow path in the splitter plate is limited to the characteristics of a processing machine (i.e. a drilling machine), and only linear drilling can be performed, while the vector intersection part cannot be processed into an arc curved surface, and only acute and sharp angles can be processed, and the processing results show problems: 1) during injection molding, stress shear and resistance to a molten body exist at the corner of a channel in the splitter plate, which seriously obstruct the flow of plastic and cause the accumulation of the plastic, thereby increasing the injection pressure; 2) after a long time, the material collecting area is heated for a long time, so that the problems of scorching, blackening and the like can be caused, the speed and the efficiency of a hot runner are further influenced, and even black spots are generated on a product, so that the product quality is influenced. When the situation occurs, the hot runner passage is usually cleaned and cleaned regularly to ensure the normal work of the hot runner, but the frequent shutdown and opening of the operation machine table can be caused, so that the production efficiency is greatly reduced; at the same time, the heat flow system can also be subject to reduced quality of installation and use due to improper fabrication and frequent disassembly, cleaning, and cleaning.

SUMMERY OF THE UTILITY MODEL

Problem to the background art, the utility model aims to provide a hot runner system to heat sensitivity material of moulding plastics, through the method that adopts the built-in mold insert of flow distribution plate, with the plastic passageway that is difficult to process in the whole flow distribution plate, change independent processing into, can also guarantee that the defective material in the hot runner passageway is complete to be cleared up and the sanitization simultaneously, whole hot runner system only needs to adopt screw locking, the locating pin location can satisfy the crossing position processing of plastic flow path vector in the flow distribution plate into the technological characteristic requirement of pitch arc curved surface.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hot runner system for thermosensitive injection molding materials comprises a splitter plate, wherein a first splitter channel is formed in the splitter plate, a cutter groove is formed in the bottom of the splitter plate and located at the intersection position of vectors of the first splitter channel, a plurality of insert grooves are formed in the outer peripheral side of the splitter plate, a runner rotary cutter corresponding to the rotary cutting of the intersection position of the vectors of the first splitter channel is installed in the cutter groove, an insert is detachably embedded in each insert groove, a second splitter channel is formed in each insert, and the first splitter channel is respectively communicated with the cutter groove and the second splitter channel arranged in each insert.

In the technical scheme, the runner rotary valve type cutter is a runner rotary valve type cutter and is positioned at the bottom of the flow distribution plate, one end of the runner rotary valve type cutter, which is provided with a cutting edge, extends into the cutter groove and is connected with the cutter groove in a positioning manner through a positioning pin, and one end of the runner rotary valve type cutter, which is provided with a hexagonal plate hand position, is exposed outside the flow distribution plate;

when the runner rotary valve type cutter is used, one end, provided with the cutting edge, of the runner rotary valve type cutter extends into the flow distribution plate, and the end, provided with the wrench position, of the runner rotary valve type cutter is embedded into a fixed die fixing plate of an injection mold.

Further, the technical scheme also comprises a main injection nozzle and a plurality of separate injection nozzles;

the main injection nozzle is arranged at the top of the flow distribution plate, one end of the main injection nozzle, which is provided with an injection material outlet, extends into the flow distribution plate and is communicated with the vector intersection part of the first flow distribution channel, and one end of the main injection nozzle, which is provided with an injection material inlet, is exposed outside the flow distribution plate;

the plurality of separate injection nozzles are all arranged at the bottom of the flow distribution plate, one end of each separate injection nozzle, which is provided with an injection material inlet, extends into the flow distribution plate and is correspondingly communicated with a second flow distribution channel arranged in one insert, and one end of each separate injection nozzle, which is provided with an injection material outlet, is exposed outside the flow distribution plate;

when the injection mold is used, one end of the main injection nozzle, which is provided with the injection material outlet, extends into the flow distribution plate, and the other end, which is provided with the injection material inlet, penetrates through a fixed mold panel of the injection mold and is exposed outside the fixed mold panel; each separate injection nozzle is provided with one end of an injection material inlet and extends into the flow distribution plate, and one end of the injection material outlet sequentially penetrates through a fixed die fixing plate and a fixed die plate of the injection mold and extends into a fixed die cavity of the fixed die plate.

Further, in the above technical scheme, the slot end of the cutter groove and the slot end of each insert groove are both open towards the outer side of the flow distribution plate, and the slot bottom end of the cutter groove and the slot bottom end of each insert groove are both open towards the inner side of the flow distribution plate;

a first through hole is formed in the groove bottom of each insert groove, and one or more second through holes are formed in the groove wall of each insert groove close to the bottom side of the flow distribution plate;

the first through hole corresponding to each insert groove is used for communicating the first diversion channel with a second diversion channel in the insert corresponding to the first diversion channel;

the second through hole corresponding to each insert groove is used for communicating a second diversion channel in the insert corresponding to the second through hole with a dispensing nozzle corresponding to the second diversion channel;

when each insert is embedded into the corresponding insert groove, the second diversion channel arranged in each insert is respectively communicated with the first through hole and the second through hole arranged in the corresponding insert groove.

Further in the above technical solution, the first diversion channel includes a plurality of first branch flow channels intersecting in a vector, one end of each of the plurality of first branch flow channels intersecting in a vector is respectively communicated with the injection outlet of the main injection nozzle and the cutter groove, the other end of each of the plurality of first branch flow channels is correspondingly communicated with a plurality of insert grooves formed on the outer peripheral side of the diversion plate, and each of the first branch flow channels is correspondingly communicated with a second diversion channel embedded in one insert in the corresponding insert groove by forming a first through hole at the groove bottom of the corresponding insert groove.

Further in the above technical solution, each of the second diversion channels includes one or more second branch flow channels, and one end of each of the second branch flow channels included in each of the second diversion channels is correspondingly communicated with one of the first branch flow channels of the first diversion channel, and the other end of each of the second branch flow channels is correspondingly communicated with an injection inlet of one of the dispensing nozzles.

Further, in the above technical solution, each insert includes a first flap and a second flap, the first flap and the second flap are fastened together by a positioning pin, one or more second branch flow channel grooves are formed in a surface of the first flap, which is fastened to the second flap, and one or more second branch flow channel grooves B are formed in a surface of the second flap, which is fastened to the first flap, and a third through hole is further formed in a bottom of each second branch flow channel groove B, and each third through hole is communicated with one second through hole formed in a corresponding insert groove;

when the first valve block and the second valve block are buckled together, one or more second branch flow channel grooves A formed in the first valve block and one or more second branch flow channel grooves B formed in the second valve block are matched and matched in a one-to-one corresponding mode, and the second branch flow channels comprising one or more second branch flow channels are formed together.

Further in the above technical solution, a vector intersecting groove matched and matched with the vector intersecting portion of the first diversion channel is formed in the middle of the blade of the flow channel rotary cutter, the vector intersecting groove includes a main groove correspondingly communicated with the main injection nozzle and a plurality of sub grooves communicated and connected with the main groove, the main groove is also matched and matched with the middle portion of the vector intersecting portion of the first diversion channel, and the plurality of sub grooves are matched and communicated with the first branch flow channels of the first diversion channel in a one-to-one corresponding and matched manner.

Compared with the prior art, the utility model has the advantages that:

1. the processing requirement and the assembly requirement of the non-sharp-corner smooth (circular arc) transition required by the flow of the thermo-sensitive material in the flow passage after the thermo-sensitive material is plasticized can be met;

2. the residual materials in the splitter plate and the hot nozzle in the hot runner system can be completely cleaned without any residue;

3. the used mould does not need to be disassembled from the injection molding machine, and can be directly operated (disassembled, cleaned, polished and restored for installation) by using a worker and a clamp; meanwhile, the self-requirement that the whole hot runner system can be integrally arranged on a mould is met;

4. the split-flow plate is embedded with a detachable insert which consists of two halves and is positioned and locked and fixed in the split-flow plate through a positioning pin and a screw to form a whole, and the appearance form of the split-flow plate is not different from that of a split-flow plate structure in a conventional hot runner system;

5. the installation form of the main injection nozzle and the separate injection nozzle is consistent with the structure of a conventional hot runner, and the matching with an injection molding machine and temperature control equipment is not influenced; does not interfere with the arrangement layout of the plastic products; the whole hot runner system is not changed in butt joint with other components;

6. because the insert is composed of two halves, milling processing can be adopted, not only can the curve and the corner cambered surface of the flow direction passage (runner) be processed according to the plasticizing property of the material and the requirement of the flowing direction of the fused mass, but also the problems that the flow of the plastic is seriously hindered and the plastic is accumulated and the injection pressure is increased because the runner which can only be linearly intersected and is processed by a conventional drilling machine and the stress shear and the resistance to the fused mass are brought can be completely avoided, and simultaneously the problems of scorching and blackening caused by long-term heating of a material collecting area can be avoided, the speed and the working efficiency of a hot runner can be effectively improved, and the quality of a product is ensured;

7. the injection mold is mainly applied to hot injection of thermosensitive materials, reduces the generation of cold materials of cold runner injection molding, saves the problems of cost loss of manpower, material resources and materials caused by the working procedures of collection, transportation, crushing, storage, recycling and the like caused by the need of treating the cold materials of runners, and greatly saves resources and energy;

8. because the insert is detachably embedded in the flow channel plate, the detachable structure can meet the requirements of timely cleaning and clearing the residual materials of the thermosensitive materials, and meanwhile, the part has light weight and small volume, and the integral die does not need to be detached from the injection molding machine, so that the insert has the advantages of time saving, labor saving and field saving.

Drawings

Fig. 1 is an assembly schematic view of the hot runner system of the present invention;

FIG. 2 is a top view of one embodiment of the manifold and insert connection in the hot runner system of FIG. 1;

FIG. 3 is an exploded top view of one embodiment of the manifold and insert connection in the hot runner system of FIG. 1;

FIG. 4 is an exploded view of the insert of FIG. 2 or FIG. 3;

FIG. 5 is a top view of an alternative embodiment of the manifold and insert connection in the hot runner system of FIG. 1;

FIG. 6 is a top view of another embodiment of the insert attachment of FIG. 5;

FIG. 7 is a view from the perspective of one embodiment of a rotary cutter based on the runners of the hot runner system of FIG. 1;

FIG. 8 is another view of an embodiment of a rotary cutter based on a flowpath in the hot runner system of FIG. 1;

FIG. 9 is an assembly view based on the hot runner system of FIG. 1 applied to a specialized injection mold;

FIG. 10 is a first schematic diagram illustrating a process for cleaning residual material in a runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 11 is a second schematic view of a process for cleaning residual material in a runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 12 is a third schematic view of a process for cleaning residual material in the runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 13 is a fourth schematic illustration of a process for cleaning residual material from within the runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 14 is a fifth process for cleaning the residual material in the runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 15 is a sixth schematic view of a process for cleaning residual material from the runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 16 is a seventh schematic view of a process for cleaning residual material in a runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 17 is an eighth schematic illustration of a process for cleaning residual material from within a runner of the hot runner system based on the injection mold of FIG. 9;

FIG. 18 is a schematic view of an assembly based on residual material remaining in the runners of the hot runner system of FIG. 9;

FIG. 19 is an exploded view of the residual material remaining in the flow channels of the hot runner system of FIG. 18;

description of reference numerals: 1. a flow distribution plate; 1.1, a first diversion channel; 1.1a, a first branch flow channel; 1.2, cutting knife grooves; 1.3, insert groove; 1.3a, a first through hole; 1.3b, a second through hole; 2. An insert; 2.1, a second diversion channel; 2.1a, a second branch flow channel; 2.2, a first petal; 2.2a, a second branch flow channel groove A; 2.3, a second petal; 2.3a, a second branch flow channel groove B; 2.4, a third through hole; 3. a runner rotating cutter; 3.1, a blade; 3.2, a hexagonal plate hand position; 3.3, vector intersecting grooves; 3.1, a blade; 3.2, a hexagonal plate hand position; 3.3a, a main groove; 3.3b, dividing the groove; 4. a primary injection nozzle; 5. a separate injection nozzle; 5.1, heating a nozzle head; 5.2, a hot nozzle head protective sleeve; 5.3, a hot nozzle head flow passage pipeline; 6. fixing the die panel; 7. fixing a die fixing plate; 8. fixing a template; 9. an upper adjusting cushion block; 10. adjusting the cushion block downwards; 11. an equal-height supporting plate;

100. fixing a mold; 200. moving the mold; 300. a first connection module; 400. a second connecting module; 500. a flow channel residual material A; 600. a flow channel residual material B; 700. and C, flow channel residue material.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, how to implement the present invention is further explained below with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, the utility model provides a hot runner system for heat-sensitive injection molding material, which comprises a splitter plate 1, a runner rotary cutter 3, a main injection nozzle 4, a plurality of inserts 2, and a plurality of separate injection nozzles 5;

specifically, referring to fig. 1 to 6, a first diversion channel 1.1 is formed inside a diversion plate 1, a cutter groove 1.2 is formed at the bottom of the diversion plate 1 and at the vector intersection position of the first diversion channel 1.1, a plurality of insert grooves 1.3 are formed on the outer peripheral side of the diversion plate 1, a runner rotary cutter 3 corresponding to the vector intersection position of the first diversion channel 1.1 in a rotary cutting manner is installed in the cutter groove 1.2, an insert 2 is detachably embedded in each insert groove 1.3, a second diversion channel 2.1 is formed in each insert 2, and the first diversion channel 1.1 arranged inside the diversion plate 1 is respectively communicated with the cutter groove 1.2 and the second diversion channel 2.1 arranged inside each insert 2.

More specifically, in the present invention, referring to fig. 7 and 8, the runner rotary valve type cutter 3 is disposed at the center of the bottom of the flow distribution plate 1, the end of the runner rotary valve type cutter having the cutting edge 3.1 is extended into the cutter groove 1.2, and the end having the hexagonal plate hand 3.2 is exposed outside the flow distribution plate 1; the main injection nozzle 4 is arranged in the center of the top of the flow distribution plate 1, one end of the main injection nozzle 4, which is provided with an injection material outlet, extends into the flow distribution plate 1 and is communicated with the vector intersection part of the first flow distribution channel 1.1, and one end of the main injection nozzle 4, which is provided with an injection material inlet, is exposed out of the flow distribution plate 1; the plurality of dispensing nozzles 5 are all arranged at the bottom of the flow distribution plate 1, one end of each dispensing nozzle 5, which is provided with an injection material inlet, extends into the flow distribution plate 1 and is correspondingly communicated with a second flow distribution channel 2.1 arranged in one insert 2, and one end provided with an injection material outlet is exposed out of the flow distribution plate 1;

referring to fig. 1, in actual use, one end of the runner rotary valve type cutter provided with the cutting edge 3.1 extends into the flow distribution plate 1, and one end provided with the hexagonal plate hand position 3.2 is embedded into a fixed die fixing plate 7 of the injection mold; one end of the main injection nozzle 4 provided with an injection material outlet extends into the flow distribution plate 1, and the other end provided with an injection material inlet penetrates through a fixed mold panel 6 of the injection mold and is exposed outside the fixed mold panel 6; the end of each dispensing nozzle 5 provided with the injection material inlet extends into the flow distribution plate 1, and the end provided with the injection material outlet sequentially passes through the fixed die fixing plate 7 and the fixed die plate 8 of the injection die and extends into the fixed die cavity of the fixed die plate 8.

Referring to fig. 1, fig. 12 and fig. 13, in the utility model discloses, divide injection nozzle 5 for the hot mouth of combination formula, this hot mouth of combination formula includes hot nozzle head 5.1, hot nozzle head protective sheath 5.2 and hot nozzle head runner pipeline 5.3, this hot nozzle head runner pipeline 5.3 one end is stretched and is established in flow distribution plate 1 and correspond and inlay second flow distribution channel 2.1 of 2 inserting of establishing in flow distribution plate 1 and be linked together, the other end is connected with hot nozzle head 5.1, and pass cover half fixed plate 7 and insert and establish in hot nozzle head protective sheath 5.2, hot nozzle head protective sheath 5.2 one end and cover half fixed plate 7 bottom fixed connection, the other end inlays and establishes in fixed die plate 8, stretch into the cover half die cavity of fixed die plate 8.

More specifically, in the utility model, the notch end of the cutter groove 1.2 and the notch end of each insert groove 1.3 are both open towards the outer side of the flow distribution plate 1, and the groove bottom end of the cutter groove 1.2 and the groove bottom end of each insert groove 1.3 are both arranged at the inner side of the flow distribution plate 1; referring to fig. 3, a first through hole 1.3a is formed at the groove bottom of each insert groove 1.3, and one or more second through holes 1.3b are formed in the groove wall of each insert groove 1.3 close to the bottom side of the flow distribution plate 1; the first through hole 1.3a corresponding to each insert groove 1.3 is used for communicating the first diversion channel 1.1 with the second diversion channel 2.1 in the insert 2 corresponding to the first diversion channel; the second through hole 1.3b corresponding to each insert groove 1.3 is used for communicating the second diversion channel 2.1 in the insert 2 corresponding to the second through hole and the separate injection nozzle 5 corresponding to the second through hole; when each insert 2 is inserted into the corresponding insert pocket 1.3, the second diversion channel 2.1 provided in each insert 2 communicates with the first through bore 1.3a and the second through bore 1.3b provided in the corresponding insert pocket 1.3, respectively.

More specifically, in the utility model discloses in, refer to fig. 2 and fig. 3 and show, first diversion channel 1.1 contains a plurality of and is the crossing first branch runner 1.1a of vector, and a plurality of first branch runner 1.1a is the crossing one end of vector and is linked together with the injection material export of main injection nozzle 4 and the tank bottom of cutter recess 1.2 respectively, a plurality of insert recess 1.3 one-to-one correspondence intercommunication that the other end of a plurality of first branch runner 1.1a and flow distribution plate 1 periphery were seted up, and every first branch runner 1.1a all corresponds still through seting up the first through-hole 1.3a that corresponds insert recess 1.3 tank bottom department and inlay the second diversion channel 2.1 that establishes in an insert 2 that corresponds insert recess 1.3.

As a preferred embodiment of the present invention: as shown in fig. 5 and fig. 6, the second diversion channel 2.1 includes a second branch channel 2.1a, and one end of the second branch channel 2.1a is correspondingly communicated with a first branch channel 1.1b of the first diversion channel 1.1, and the other end is correspondingly communicated with an injection inlet of a dispensing nozzle 5.

In the preferred embodiment, each insert 2 comprises a first petal 2.2 and a second petal 2.3, and the first petal 2.2 and the second petal 2.3 are fastened together by a positioning pin; a second branch flow channel groove A2.2a is formed in one surface, tightly attached to the first petal block 2.2, of the first petal block 2.2, a second branch flow channel groove B2.3a is formed in one surface, tightly attached to the first petal block 2.2, of the second petal block 2.3, a third through hole 2.4 is further formed in the bottom of the second branch flow channel groove B2.3a, and the third through hole 2.4 is communicated with a second through hole 1.3b formed in the corresponding insert groove 1.3; when the first lobe block 2.2 and the second lobe block 2.3 in the preferred embodiment are buckled together, a second branch flow channel groove a2.2a formed in the first lobe block 2.2 is matched and matched with a second branch flow channel groove b2.3a formed in the second lobe block 2.3, and the second branch flow channel groove a 2.1 including only one second branch flow channel 2.1a in the preferred embodiment is formed together.

As another preferred example of the present invention: as shown in fig. 2 to 4, each second diversion channel 2.1 includes two or more second branch flow channels 2.1 a; in the preferred embodiment, one end of each second branch flow channel 2.1a included in each second branch flow channel 2.1 is correspondingly communicated with one first branch flow channel 1.1a of the first branch flow channel 1.1, and the other end is correspondingly communicated with an injection inlet of a dispensing nozzle 5.

In the preferred embodiment, each insert 2 comprises a first petal 2.2 and a second petal 2.3, and the first petal 2.2 and the second petal 2.3 are fastened together by a positioning pin; two or more second branch flow channel grooves A2.2a are formed in one face, tightly attached to the first petal block 2.2, of the first petal block 2.2, two or more second branch flow channel grooves B2.3a are formed in one face, tightly attached to the first petal block 2.2, of the second petal block 2.3, a third through hole 2.4 is formed in the bottom of each second branch flow channel groove B2.3b, and each third through hole 2.4 is communicated with one second through hole 1.3b formed in the corresponding insert groove 1.3; when the first lobe 2.2 and the second lobe 2.3 in this preferred embodiment are fastened together, two or more second branch flow channel grooves a2.2a provided in the first lobe 2.2 and two or more second branch flow channel grooves b2.3a provided in the second lobe 2.3 are matched and matched, and a second branch flow channel 2.1 including two or more second branch flow channels 2.1a is formed.

In the above preferred embodiment, a vector intersecting groove 3.3 matching and matching with the vector intersecting position of the first diversion channel 1.1 is formed in the middle of the blade 3.1 of the flow channel rotary cutter 3, the vector intersecting groove 3.3 comprises a main groove 3.3a correspondingly communicated with the main injection nozzle 4 and a plurality of sub grooves 3.3b communicated and connected with the main groove 3.3a, the main groove 3.3a is also matched and matched with the middle of the vector intersecting position of the first diversion channel 1.1, and the plurality of sub grooves 3.3b are correspondingly matched and communicated with the plurality of first branch flow channels 1.1a of the first diversion channel 1.1 one by one.

When the hot runner system for the heat-sensitive injection molding material needs to be applied to a special injection mold, the installation process is as follows:

the first step is as follows: assembling the insert and the flow distribution plate: firstly, combining a first lobe 2.2 and a second lobe 2.3 of an insert 2 together, connecting the two lobes into a whole by using a positioning pin 16, correspondingly inserting the whole into an insert groove 1.3 in a flow distribution plate 1, and then fastening each insert 2 and the flow distribution plate 1 together in sequence by using a fixing bolt, namely finishing the assembly of the insert 2 and the flow distribution plate 1;

the second step is that: carrying out main injection nozzle and injection mold fixed mold panel assembly: embedding the main injection nozzle 4 into a fixed mold panel 6 of the injection mold, and fastening the main injection nozzle 4 and the fixed mold panel 6 together through a fixing bolt, namely completing the assembly of the main injection nozzle 4 and the fixed mold panel 6 of the injection mold;

the third step: assembling a splitter plate and a fixed die panel of the injection mold: firstly, placing the splitter plate 1 embedded with the insert 2 in the first step on one side of the fixed die panel 6 provided with the main injection nozzle 4 in the second step, aligning a channel inlet of a first splitter channel 1.1 of the splitter plate 1 with an injection outlet of the main injection nozzle 4, meanwhile, arranging a certain number of upper adjusting cushion blocks 9 between the splitter plate 1 and the fixed die panel 6 according to requirements, then fastening the splitter plate 1 and the fixed die panel 6 together through fixing screws, and clamping the upper adjusting cushion blocks 400 arranged on the splitter plate 1 and the fixed die panel 6, namely finishing the assembly of the splitter plate 1 and the fixed die panel 6 of the injection mold;

the fourth step: and (3) assembling a separate injection nozzle, a splitter plate and an injection mold fixed die fixing plate: firstly, one end of each dispensing nozzle 5 provided with a dispensing material inlet is aligned and inserted into a second through hole 1.3b arranged at the bottom of the flow distribution plate 1 in sequence, one end of each dispensing nozzle 5 provided with a dispensing material outlet is aligned and inserted into a dispensing nozzle through hole 7.2 formed in a fixed die fixing plate 7 of the injection die in sequence and extends to the bottom of the fixed die fixing plate 7, meanwhile, a certain number of lower adjusting cushion blocks 10 are arranged between the flow distribution plate 1 and the fixed die fixing plate 7, a certain number of equal-height supporting plates 11 are arranged between the fixed die fixing plate 7 and the fixed die panel 6, and finally the fixed die fixing plate 7, the equal-height supporting plates 11 and the fixed die panel 6 are fastened together through fixing screws, and clamping a lower adjusting cushion block 10 arranged between the splitter plate 1 and the fixed die fixing plate 7, namely finishing the assembly of the split injection nozzle 5, the splitter plate 1 and the fixed die fixing plate 7 of the injection mold;

fifthly, installing a runner rotary cutter and an injection mold fixed template: one end of the runner rotary cutter 3 provided with a cutting edge 3.1 penetrates through a cutter through hole 7.1 arranged in a fixed die fixing plate 7 and extends into a cutter groove 1.2 arranged at the bottom of the flow distribution plate 1 installed in the third step, the runner rotary cutter is positioned in the cutter groove 1.2 through a positioning pin, one end of the runner rotary cutter 3 provided with a hexagonal plate hand position 3.2 is left in the cutter through hole 7.1 arranged in the fixed die fixing plate 7 of the injection die, then a fixed die plate 8 of the injection die is placed at the bottom of the fixed die fixing plate 7, the part of the runner rotary cutter 3 installed in the fourth step, which extends to the bottom of the fixed die fixing plate 7, is aligned and inserted into a dispensing injection nozzle through hole 8.1 arranged in the fixed die plate 8, and finally the fixed die plate 8 and the fixed die fixing plate 7 are fastened together through a fixing screw, namely the runner rotary cutter 3 and the fixed die plate 8 of the injection die are installed;

the installation of the hot runner system for heat-sensitive injection molding material described above, i.e., the assembly of the injection mold stationary mold 100, is completed, as shown in fig. 9.

When the residual material in the runner of the hot runner system for the heat-sensitive injection molding material, which is arranged in the injection mold, needs to be cleaned, the cleaning process is as follows:

firstly, detaching a fixing screw 12 connecting a fixed mold plate 8 of an injection mold and a fixed mold fixing plate 7, as shown in fig. 10, driving the injection molding machine to work, closing the fixed mold 100 and the movable mold 200 of the injection mold, and after closing the movable mold 200 and the fixed mold 100, connecting and locking a movable mold plate 201 of the movable mold 200 and the fixed mold plate 8 of the fixed mold 100 by using a first connecting module 300, as shown in fig. 11;

secondly, driving the injection molding machine to work again, opening the injection molding machine to open the fixed mold plate 8 and the movable mold 200 together, then detaching the positioning pin 14 for positioning the runner rotary cutter 3, using a tool matched with the runner rotary cutter 3 to enable the runner rotary cutter 3 to start rotating, cutting off the runner joint of the runner residue A500 in the runner of the main injection nozzle 4 and the flow distribution plate 1 along the circumferential direction, then taking out the runner residue A500 in the runner of the main injection nozzle 4, detaching the protective sleeve 5.2 of the separate injection nozzle 5, detaching the fixed screw 13 connecting the fixed mold plate 7 and the fixed mold plate 6, finally driving the injection molding machine to work again, closing the fixed mold 100 and the movable mold 200 of the injection molding machine, and connecting and locking the fixed mold plate 7 and the fixed mold plate 8 of the fixed mold 100 by using the second connecting mold 400 after the movable mold 200 and the fixed mold 100 are closed, as shown in fig. 12 and 13;

thirdly, driving the injection molding machine to work again, opening the injection molding mold again, so that the fixed mold fixing plate 7 and the fixed mold plate 8 are opened together with the movable mold 200, then detaching the fixing bolts 15 for fixing the insert 2, and sequentially detaching the insert 2 from the flow distribution plate 1 by using a special tool, at this time, the lower plane of the insert 2 simultaneously cuts off the runner residue B600 vertically connected to the dispensing nozzle 5, then detaching the combined hot nozzle 5.1 at the front end of the dispensing nozzle 5 by using a tool, taking out the runner residue B600 in the hot nozzle of the dispensing nozzle 5, and finally detaching the positioning pins 16 for connecting and positioning the first segment 2.2 and the second segment 2.3 of the insert 2, separating the first segment 2.2 and the second segment 2.3 of the insert 2, and taking out the runner residue C700 in the insert 2, as shown in fig. 14 to 17;

at this point, the cleaning of all the remnants (see fig. 18 and 19) in the runner of the hot runner system for heat-sensitive injection molding material is completed.

Finally, the above description is only the embodiments of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (8)

1. A hot runner system for heat-sensitive injection molding materials, comprising a manifold plate (1), characterized in that: the flow dividing plate is characterized in that a first flow dividing channel (1.1) is formed in the flow dividing plate (1), a cutter groove (1.2) is formed in the bottom of the flow dividing plate (1) and located at the vector intersection position of the first flow dividing channel (1.1), a plurality of insert grooves (1.3) are formed in the outer peripheral side of the flow dividing plate (1), a flow channel rotary cutter (3) corresponding to the vector intersection position of the first flow dividing channel (1.1) in a rotary cutting mode is installed in the cutter groove (1.2), an insert (2) is detachably embedded in each insert groove (1.3), a second flow dividing channel (2.1) is formed in each insert (2), and the first flow dividing channel (1.1) is respectively communicated with the cutter groove (1.2) and the second flow dividing channel (2.1) arranged in each insert (2).

2. The hot-runner system for heat-sensitive injection molding material of claim 1, wherein: the runner rotary valve type cutting knife is characterized in that the runner rotary valve type cutting knife (3) is positioned at the bottom of the flow distribution plate (1), one end, provided with a cutting edge (3.1), of the runner rotary valve type cutting knife extends into the cutting knife groove (1.2) and is connected with the cutting knife groove (1.2) in a positioning mode through a positioning pin, and one end (3.2), provided with a hexagonal plate hand position (3.2), of the runner rotary valve type cutting knife is exposed out of the flow distribution plate (1);

when the runner rotary valve type cutting knife is used, one end, provided with the cutting edge (3.1), of the runner rotary valve type cutting knife extends into the flow distribution plate (1), and one end, provided with the wrench position (3.2), of the runner rotary valve type cutting knife is embedded into a fixed die fixing plate (7) of an injection mold.

3. The hot-runner system for heat-sensitive injection molding material of claim 2, wherein: also comprises a main injection nozzle (4) and a plurality of dispensing nozzles (5);

the main injection nozzle (4) is arranged at the top of the flow distribution plate (1), one end of the main injection nozzle (4) provided with an injection material outlet extends into the flow distribution plate (1) and is communicated with the vector intersection part of the first flow distribution channel (1.1), and one end of the main injection nozzle (4) provided with an injection material inlet is exposed outside the flow distribution plate (1);

the plurality of separate injection nozzles (5) are all arranged at the bottom of the flow distribution plate (1), one end of each separate injection nozzle (5) provided with an injection inlet extends into the flow distribution plate (1) and is correspondingly communicated with a second flow distribution channel (2.1) arranged in one insert (2), and one end of each separate injection nozzle (5) provided with an injection outlet is exposed out of the flow distribution plate (1);

when the injection mold is used, one end of the main injection nozzle (4) provided with the injection material outlet extends into the flow distribution plate (1), and the other end provided with the injection material inlet penetrates through a fixed mold panel (6) of the injection mold and is exposed outside the fixed mold panel (6); each separate injection nozzle (5) is provided with one end of an injection inlet and stretches into the flow distribution plate (1), and one end of the injection outlet sequentially penetrates through a fixed die fixing plate (7) and a fixed die plate (8) of the injection mold and stretches into a fixed die cavity of the fixed die plate (8).

4. The hot-runner system for heat-sensitive injection molding material of claim 3, wherein: the notch end of the cutter groove (1.2) and the notch end of each insert groove (1.3) are arranged towards the outer side of the flow distribution plate (1) in an open manner, and the groove bottom end of the cutter groove (1.2) and the groove bottom end of each insert groove (1.3) are arranged towards the inner side of the flow distribution plate (1);

a first through hole (1.3a) is formed in the groove bottom of each insert groove (1.3), and one or more second through holes (1.3b) are formed in the groove wall of each insert groove (1.3) close to the bottom side of the flow distribution plate (1);

the first through hole (1.3a) corresponding to each insert groove (1.3) is used for communicating the first diversion channel (1.1) with the second diversion channel (2.1) in the insert (2) corresponding to the first diversion channel;

the second through hole (1.3b) corresponding to each insert groove (1.3) is used for communicating a second diversion channel (2.1) in the insert (2) corresponding to the second through hole with a dispensing nozzle (5) corresponding to the second through hole;

when each insert (2) is inserted into the corresponding insert pocket (1.3), the second diversion channel (2.1) provided in each insert (2) communicates with the first through hole (1.3a) and the second through hole (1.3b) provided in the corresponding insert pocket (1.3), respectively.

5. The hot-runner system for heat-sensitive injection molding material of claim 4, wherein: the first diversion channel (1.1) comprises a plurality of first diversion channels (1.1a) which are intersected in a vector manner, one ends of the first diversion channels (1.1a) which are intersected in the vector manner are respectively communicated with an injection outlet of the main injection nozzle (4) and a cutter groove (1.2), the other ends of the first diversion channels (1.1a) are correspondingly communicated with a plurality of insert grooves (1.3) formed in the outer peripheral side of the diversion plate (1), and each first diversion channel (1.1a) is correspondingly communicated with a second diversion channel (2.1) embedded in one insert (2) in the corresponding insert groove (1.3) through a first through hole (1.3a) formed in the groove bottom of the corresponding insert groove (1.3).

6. The hot-runner system for heat-sensitive injection molding material of claim 4, wherein: each second branch flow channel (2.1) comprises one or more second branch flow channels (2.1a), one end of each second branch flow channel (2.1a) contained in each second branch flow channel (2.1) is correspondingly communicated with one first branch flow channel (1.1b) of the first branch flow channel (1.1), and the other end of each second branch flow channel is correspondingly communicated with an injection inlet of a dispensing nozzle (5).

7. The hot-runner system for heat-sensitive injection molding material of claim 6, wherein: each insert (2) comprises a first flap block (2.2) and a second flap block (2.3), the first flap block (2.2) and the second flap block (2.3) are fastened together through a positioning pin, one or more second branch flow channel grooves A (2.2a) are formed in one surfaces, fastened and attached to each other, of the first flap block (2.2) and the second flap block (2.3), one or more second branch flow channel grooves B (2.3a) are formed in one surfaces, fastened and attached to each other, of the second flap block (2.3) and the first flap block (2.2), a third through hole (2.4) is further formed in the bottom of each second branch flow channel groove B (2.3a), and each third through hole (2.4) is communicated with a second through hole (1.3B) formed in the corresponding insert groove (1.3);

when the first valve piece (2.2) and the second valve piece (2.3) are buckled together, one or more second branch flow channel grooves A (2.2a) formed in the first valve piece (2.2) and one or more second branch flow channel grooves B (2.3a) formed in the second valve piece (2.3) are matched and matched in a one-to-one corresponding mode, and the second branch flow channel (2.1) comprising one or more second branch flow channels (2.1a) is formed jointly.

8. The hot-runner system for heat-sensitive injection molding material of claim 7, wherein: the middle of a blade (3.1) of the runner rotary cutter (3) is provided with a vector intersection groove (3.3) matched and matched with the vector intersection part of the first diversion channel (1.1), the vector intersection groove (3.3) comprises a main groove (3.3a) correspondingly communicated with a main injection nozzle (4) and a plurality of branch grooves (3.3b) communicated and connected with the main groove (3.3a), the main groove (3.3a) is also matched and matched with the middle part of the vector intersection part of the first diversion channel (1.1), and the branch grooves (3.3b) are correspondingly matched and communicated with the first branch flow channels (1.1a) of the first diversion channel (1.1).

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