A hot runner system for heat-sensitive injection molding materials and a method of use thereof

Abstract

The present invention discloses a hot runner system for heat-sensitive injection molding materials and a method for using the hot runner system, the hot runner system comprises a manifold, a first manifold channel is provided inside the manifold, a cutter groove is provided at the bottom of the manifold and at the intersection of the first manifold channel vector, a plurality of insert grooves are provided on the outer peripheral side of the manifold, a flow channel rotary cutter corresponding to the intersection of the first manifold channel vector is installed in the cutter groove, an insert is detachably embedded in each insert groove, a second manifold channel is provided in each insert, the first manifold channel is respectively connected with the cutter groove and the second manifold channel provided in each insert; the method for using the hot runner system comprises an installation method for the above-mentioned hot runner system and a method for cleaning the residual material in the manifold. The present invention has the advantages of convenient processing and manufacturing, convenient installation and disassembly, and convenient, thorough and clean cleaning of residual material.

Description

Technical Field

[0001] The invention relates to a hot runner system, belonging to the technical field of injection molds, and in particular to a hot runner system for heat-sensitive injection materials and a use method thereof. Background Art

[0002] When the heat-sensitive material is charred, carbonized, or yellowed, the conventional hot runner system can only melt it with other cleaning materials first, and then use its flushing and molten viscosity to peel off the charred heat-sensitive residue from the inner wall of the manifold runner, and finally extrude it out of the hot nozzle through injection. The entire cleaning process usually takes more than 10 hours, and usually when the heat-sensitive material is severely carbonized and charred, its corrosiveness is very strong, and the inner wall of the manifold runner will also be corroded to a certain extent, resulting in local material mutation and damage. This part of the mutated material will occasionally peel off and be mixed into the later melted plastic; and these metal residues cannot be melted and taken out of the inner wall of the barrel and screw using cleaning materials, one of the results is that the injection hole of the hot nozzle will be blocked later and the hot runner system will be damaged.

[0003] Secondly, due to the temperature sensitivity and temperature control instability of heat-sensitive materials, conventional hot runner systems can only melt them into a flowing injection-molding extrusion state, but it is difficult to ensure their long-term stability. In particular, when heat-sensitive materials are charred, carbonized, or yellowed, the conventional hot runner structure cannot quickly and completely remove the waste (due to the integral production of conventional hot runner manifolds, which cannot be disassembled). Another result is long-term shutdown, replacement of the barrel screw, polishing and grinding, and then reinstallation, commissioning and reproduction; and such processes or conditions will occur frequently, seriously restricting production efficiency and benefits.

[0004] In addition, in the current conventional hot runner, the processing of the plastic flow channel in the manifold is limited to the characteristics of the processing machine tool (i.e., drilling machine), and can only be processed into straight lines, and the parts where the vectors intersect cannot be processed into arc surfaces, but can only be processed into sharp angles and sharp corners. The problems presented by such processing results are: 1) During injection molding, the stress shear and resistance to the molten body exist at the corners of the channel in the manifold, which seriously hinders the flow of plastic and causes plastic accumulation, increasing the injection pressure; 2) After a long time, the long-term heating of the aggregate area will cause problems such as burning and blackening, which will affect the speed and efficiency of the hot runner, and even cause black spots on the product, affecting the product quality. When this happens, it is usually necessary to regularly clean and clean the hot runner passage to ensure the normal operation of the hot runner, but this will cause the operating machine to stop and start frequently, greatly reducing production efficiency; at the same time, the heat flow system will also reduce the quality of installation and use due to unreasonable production and frequent disassembly, cleaning, and cleaning. Summary of the invention

[0005] In view of the problems of the background technology, the purpose of the present invention is to provide a hot runner system and a method of use for heat-sensitive injection molding materials. By adopting the method of built-in inserts in the manifold, the plastic channels that are difficult to process in the overall manifold are changed to independent processing, while at the same time ensuring that the residual materials in the hot runner channels are completely cleaned and washed. The entire hot runner system only needs to be locked with screws and positioned with locating pins to meet the process characteristic requirements of processing the parts where the plastic flow path vectors in the manifold intersect into arc surfaces.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A hot runner system with an insert-embedded manifold plate structure comprises a manifold plate, a first manifold channel is provided inside the manifold plate, a cutter groove is provided at the bottom of the manifold plate and located at the intersection of the first manifold channel vectors, a plurality of insert grooves are provided on the outer peripheral side of the manifold plate, a flow channel rotating cutter is installed in the cutter groove and is matched with the intersection of the first manifold channel vectors and is rotary cut corresponding to the intersection, an insert is detachably embedded in each of the insert grooves, a second manifold channel is provided in each of the inserts, and the first manifold channel is respectively connected to the cutter groove and the second manifold channel provided in each of the inserts.

[0008] In the above technical solution, the flow channel rotary cutter is a flow channel rotary valve type cutter and is located at the bottom of the diverter plate. One end of the flow channel rotary valve type cutter provided with a blade is extended into the cutter groove and is positioned and connected to the cutter groove through a positioning pin. One end of the flow channel rotary valve type cutter provided with a hexagonal wrench position is exposed outside the diverter plate.

[0009] When in use, the end of the flow channel rotary valve type cutter provided with a blade is extended in the diverter plate, and the end provided with a hexagonal wrench position is embedded in the fixed mold fixing plate of the injection mold.

[0010] Further the above technical solution, further comprises a main injection nozzle and a plurality of sub-injection nozzles;

[0011] The main injection nozzle is arranged on the top of the diverter plate, and one end of the main injection nozzle provided with an injection material outlet is extended inside the diverter plate and communicated with the intersection of the first diverter channel vector, and one end of the main injection nozzle provided with an injection material inlet is exposed outside the diverter plate;

[0012] The plurality of sub-injection nozzles are all arranged at the bottom of the manifold, and one end of each sub-injection nozzle provided with an injection material inlet is extended in the manifold and correspondingly communicated with a second manifold channel provided in an insert, and one end of each sub-injection nozzle provided with an injection material outlet is exposed outside the manifold;

[0013] When in use, one end of the main injection nozzle provided with an injection material outlet extends into the manifold, and one end provided with an injection material inlet passes through the fixed mold panel of the injection mold and is exposed outside the fixed mold panel; one end of each of the sub-injection nozzles provided with an injection material inlet extends into the manifold, and one end provided with an injection material outlet sequentially passes through the fixed mold fixing plate and the fixed mold plate of the injection mold, and extends into the fixed mold cavity of the fixed mold plate.

[0014] Further in the above technical solution, the notch end of the cutter groove and the notch end of each insert groove are both openly arranged toward the outside of the diverter plate, and the groove bottom end of the cutter groove and the groove bottom end of each insert groove are both arranged toward the inside of the diverter plate;

[0015] A first through hole is provided at the bottom of each insert groove, and one or more second through holes are provided on the groove wall of each insert groove close to the bottom side of the diverter plate;

[0016] The first through hole corresponding to each insert groove is used to connect the first shunt channel with the second shunt channel in the corresponding insert;

[0017] The second through hole corresponding to each of the insert grooves is used to communicate with the second flow distribution channel in the corresponding insert and the corresponding injection nozzle;

[0018] When each insert is embedded in the corresponding insert groove, the second flow distribution channel arranged in each insert will be communicated with the first through hole and the second through hole arranged in the corresponding insert groove respectively.

[0019] Further in the above technical solution, the first diversion channel includes a plurality of first branch flow channels that intersect in a vector manner, and one end of the plurality of first branch flow channels that intersect in a vector manner is respectively connected to the injection material outlet and the cutting knife groove of the main injection nozzle, and the other end of the plurality of first branch flow channels is connected one by one with a plurality of insert grooves opened on the outer peripheral side of the diversion plate, and each of the first branch flow channels is also connected to a second diversion channel in an insert embedded in the corresponding insert groove through a first through hole opened at the bottom of the corresponding insert groove.

[0020] Further in the above technical solution, each of the second diversion channels includes one or more second branch channels, and one end of each second branch channel included in each of the second diversion channels is correspondingly connected to a first branch channel of the first diversion channel, and the other end is correspondingly connected to an injection material inlet of a sub-injection nozzle.

[0021] Further in the above technical solution, each of the inserts includes a first petal block and a second petal block, the first petal block and the second petal block are fastened together by a positioning pin, one or more second branch flow channel grooves are provided on a surface where the first petal block and the second petal block are fastened together, one or more second branch flow channel grooves B are provided on a surface where the second petal block and the first petal block are fastened together, a third through hole is also provided at the bottom of each of the second branch flow channel grooves B, and each of the third through holes is connected to a second through hole provided on the corresponding insert groove;

[0022] When the first flap block and the second flap block are buckled together, one or more second branch flow channel grooves A opened on the first flap block match and match one or more second branch flow channel grooves B opened on the second flap block one by one, and together constitute the second diversion channel containing one or more second branch flow channels.

[0023] Further in the above technical scheme, a vector intersection groove matching the vector intersection part of the first diversion channel is opened in the middle of the blade of the flow channel rotating cutter, and the vector intersection groove includes a main groove corresponding to the main injection nozzle and a plurality of sub-grooves connected to the main groove. The main groove also matches the middle part of the vector intersection part of the first diversion channel, and the plurality of sub-grooves are matched, matched and connected with the plurality of first branch flow channels of the first diversion channel in a one-to-one correspondence.

[0024] A method for using a hot runner system with an insert-embedded manifold structure includes an installation method for the hot runner system with an insert-embedded manifold structure of the above technical solution and a method for cleaning residual materials in the flow channel of the hot runner system with an insert-embedded manifold structure of the above technical solution.

[0025] Further in the above-mentioned method of use: the installation method of the hot runner system of the above-mentioned technical solution with an embedded manifold structure specifically comprises the following steps:

[0026] S1-1, assembly of insert and manifold: firstly, combine the first petal and the second petal of the insert together, connect them into a whole with positioning pins, and then insert them into the insert grooves in the manifold accordingly, and then fasten each insert and the manifold together in sequence with fixing bolts, thus completing the assembly of the insert and the manifold;

[0027] S1-2, assembling the main injection nozzle and the fixed mold panel of the injection mold: embedding the main injection nozzle into the fixed mold panel of the injection mold, and fastening it to the fixed mold panel through fixing bolts, thus completing the assembly of the main injection nozzle and the fixed mold panel of the injection mold;

[0028] S1-3, assembling the diverter plate and the fixed mold panel of the injection mold: first, place the diverter plate with the inserts in step S1-1 on the side of the fixed mold panel on which the main injection nozzle is installed in step S1-2, and align the channel entrance of the first diverter channel of the diverter plate with the injection material outlet of the main injection nozzle. At the same time, a certain number of upper adjustment pads are set between the diverter plate and the fixed mold panel as needed, and then the diverter plate and the fixed mold panel are fastened together by fixing screws, and the upper adjustment pads set on the diverter plate and the fixed mold panel are clamped, so as to complete the assembly of the diverter plate and the fixed mold panel of the injection mold;

[0029] S1-4, assembling the sub-injection nozzles with the diverter plate and the fixed mold plate of the injection mold: first, align one end of each sub-injection nozzle with the injection material inlet into a second through hole provided at the bottom of the diverter plate in turn, and align one end of each sub-injection nozzle with the injection material outlet into the sub-injection nozzle through hole provided in the fixed mold plate of the injection mold in turn, and extend to the bottom of the fixed mold plate. At the same time, a certain number of lower adjustment pads are arranged between the diverter plate and the fixed mold plate, and a certain number of equal-height support plates are arranged between the fixed mold plate and the fixed mold panel. Finally, the fixed mold plate, the equal-height support plates and the fixed mold panel are fastened together by fixing screws, and the lower adjustment pads arranged between the diverter plate and the fixed mold plate are clamped, so as to complete the assembly of the sub-injection nozzles with the diverter plate and the fixed mold plate of the injection mold;

[0030] S1-5, installation of the runner rotary cutter and the fixed mold plate of the injection mold: pass one end of the runner rotary cutter with a blade through the cutter through-hole provided in the fixed mold fixing plate and extend it into the cutter groove provided at the bottom of the diverter plate installed in step S1-3, and position it in the cutter groove through a positioning pin, leave one end of the runner rotary cutter with a hexagonal wrench position in the cutter through-hole provided in the fixed mold fixing plate of the injection mold, and then place the fixed mold plate of the injection mold at the bottom of the fixed mold fixing plate, and align the sub-injection nozzle installed in step S4 to extend to the bottom of the fixed mold fixing plate and insert it into the sub-injection nozzle through-hole opened on the fixed mold plate, and finally fasten the fixed mold plate and the fixed mold fixing plate together through fixing screws, thus completing the installation of the runner rotary cutter and the fixed mold plate of the injection mold;

[0031] At this point, the installation of the hot runner system with the insert embedded manifold structure in the above technical solution is completed, that is, the assembly of the fixed mold of the injection mold is completed;

[0032] The method for cleaning residual material in the flow channel of the hot runner system with the insert embedded manifold structure of the above technical solution specifically comprises the following steps:

[0033] S2-1. After the product is produced by the injection mold, the fixing screws connecting the fixed mold plate and the fixed mold fixing plate of the injection mold are first removed, and then the injection molding machine is driven to work, the fixed mold and the movable mold of the injection mold are molded together, and after the movable and fixed molds are molded together, the first connecting module is used to connect and lock the movable mold plate of the movable mold with the fixed mold plate of the fixed mold;

[0034] S2-2, drive the injection molding machine to work again, open the injection mold, open the fixed mold plate and the movable mold part together, then remove the positioning pin used to position the runner rotary cutter, then drive the runner rotary cutter to start rotating, and cut off the runner residual material A in the runner of the main injection nozzle and the runner connection of the diverter plate along the circumferential direction, then take out the runner residual material A in the runner of the main injection nozzle, and at the same time remove the protective cover of the diverter nozzle, and remove the fixing screws connecting the fixed mold fixing plate and the fixed mold panel, finally drive the injection molding machine to work again, close the fixed mold and the movable mold of the injection mold, and after closing the movable and fixed molds, use the second connecting module to connect and lock the fixed mold fixing plate of the fixed mold with the fixed mold plate;

[0035] S2-3, drive the injection molding machine to work again, open the injection mold again, open the fixed mold plate and the fixed mold plate together with the movable mold part, then remove the fixing bolts of the fixed insert, and remove the insert from the manifold in sequence. At this time, the lower plane of the insert will simultaneously cut off the runner residue B vertically connected to the sub-injection nozzle, then remove the hot nozzle head at the front end of the sub-injection nozzle, and take out the runner residue B in the sub-injection nozzle, finally remove the positioning pins used to connect and position the first petal block and the second petal block of the insert, separate the first petal block and the second petal block of the insert, and take out the runner residue C in the insert;

[0036] At this point, the cleaning of all the residual materials in the flow channel of the hot runner system with the insert embedded manifold structure of the above technical solution is completed.

[0037] Compared with the prior art, the advantages of the present invention are:

[0038] 1. A removable insert is embedded in the manifold, and the insert consists of two halves, which are positioned and locked in the manifold by positioning pins and screws to form a whole. The appearance is no different from the manifold structure in the conventional hot runner system;

[0039] 2. The installation form of the main injection nozzle and the sub-injection nozzle is consistent with the conventional hot runner structure, which does not affect the coordination with the injection molding machine and temperature control equipment; it does not interfere with the arrangement and layout of plastic products; and the entire hot runner system does not change when docking with other components;

[0040] 3. Since the insert is composed of two halves, milling can be used. Not only can the curves and corner arcs of the flow path (runner) be processed according to the plasticization characteristics of the material and the fluidity trend of the molten body, but also the conventional drilling machine can be used to process the runners that can only intersect in straight lines and the stress shear and resistance to the molten body that it brings, which seriously hinders the flow of plastic and causes plastic accumulation and increases the injection pressure. At the same time, it can also avoid the problem of scorching and blackening caused by long-term heating of the aggregate area after a long time, which can effectively improve the speed and work efficiency of the hot runner and ensure the quality of the product;

[0041] 4. It is mainly used for hot injection of heat-sensitive materials, which reduces the generation of cold materials in cold runner injection molding and saves the cost loss of manpower, material resources and materials caused by the collection, transportation, crushing, storage and reuse of runner cold materials, greatly saving resources and energy;

[0042] 5. Since the insert is detachably embedded in the runner plate, its detachable structure can meet the needs of timely cleaning and clearing of heat-sensitive material residues. At the same time, its parts are light in weight and small in size, and the overall mold does not need to be disassembled from the injection molding machine, which has the advantages of saving time, labor and space. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the assembly of the hot runner system of the present invention;

[0044] Figure 2 Based on Figure 1 A top view of an embodiment of the connection between the manifold and the insert in the hot runner system;

[0045] Figure 3 Based on Figure 1 An exploded top view of an embodiment of the connection between the manifold and the insert in the hot runner system;

[0046] Figure 4 for Figure 2 or Figure 3 Exploded view of the middle block;

[0047] Figure 5 Based on Figure 1 A top view of another embodiment of the connection between the manifold and the insert in the hot runner system;

[0048] Figure 6 for Figure 5 A top view of another embodiment of the middle insert connection;

[0049] Figure 7 Based on Figure 1 One perspective view of an embodiment of a flow channel rotary cutter in a hot runner system;

[0050] Figure 8 Based on Figure 1 Another perspective view of an embodiment of a flow channel rotary cutter in a hot runner system;

[0051] Fig. 9 Based on Figure 1 Assembly drawing of hot runner system applied to special injection mold;

[0052] Fig.10 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 1 ;

[0053] Fig.11 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 2 ;

[0054] Fig.12 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 3 ;

[0055] Fig.13 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 4 ;

[0056] Fig.14 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 5 ;

[0057] Fig.15 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 6 ;

[0058] Fig.16 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 7 ;

[0059] Fig.17 For based on Fig. 9 Schematic diagram of the process of cleaning the residual material in the hot runner system of the injection mold Figure 8 ;

[0060] Fig.18 Based on Fig. 9 Schematic diagram of the assembly of the residual material remaining in the hot runner system runner;

[0061] Fig.19 for Fig.18 Exploded view of the residual material in the runner of the medium hot runner system;

[0062] Explanation of reference numerals: 1. diverter plate; 1.1. first diverter channel; 1.1a. first branch channel; 1.2. cutter groove; 1.3. insert groove; 1.3a. first through hole; 1.3b. second through hole; 2. insert; 2.1. second diverter channel; 2.1a. second branch channel; 2.2. first flap; 2.2a. second branch channel groove A; 2.3. second flap; 2.3a. second branch channel groove B; 2.4. third through hole; 3. channel rotary cutter; 3.1. blade; 3.2. hexagonal wrench position ; 3.3, vector intersection groove; 3.3a, main groove; 3.3b, sub-groove; 4, main injection nozzle; 5, sub-injection nozzle; 5.1, hot nozzle head; 5.2, hot nozzle head protective cover; 5.3, hot nozzle head flow channel; 6, fixed mold panel; 7, fixed mold fixing plate; 8, fixed mold plate; 9, upper adjustment pad; 10, lower adjustment pad; 11, equal height support plate; 100, fixed mold; 200, movable mold; 300, first connecting module; 400, second connecting module; 500, flow channel residue A; 600, flow channel residue B; 700, flow channel residue C. DETAILED DESCRIPTION

[0063] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following further describes how the present invention is implemented in conjunction with the accompanying drawings and specific implementation methods.

[0064] See also Figure 1 As shown, the hot runner system of the insert embedded manifold structure provided by the present invention comprises a manifold 1, a runner rotary cutter 3, a main injection nozzle 4, a plurality of inserts 2, and a plurality of sub-injection nozzles 5;

[0065] Specifically, see Figures 1 to 6 As shown, a first diverter channel 1.1 is provided inside the diverter plate 1, a cutter groove 1.2 is provided at the bottom of the diverter plate 1 and located at the intersection of the vectors of the first diverter channel 1.1, a plurality of insert grooves 1.3 are provided on the outer peripheral side of the diverter plate 1, a flow channel rotating cutter 3 matching the intersection of the vectors of the first diverter channel 1.1 is installed in the cutter groove 1.2, an insert 2 is detachably embedded in each insert groove 1.3, a second diverter channel 2.1 is provided in each insert 2, and the first diverter channel 1.1 arranged inside the diverter plate 1 is respectively connected with the cutter groove 1.2 and the second diverter channel 2.1 arranged in each insert 2.

[0066] More specifically, in the present invention, refer to Figure 7and Figure 8 As shown, the flow channel rotary cutter 3 is a flow channel rotary valve type cutter and is arranged at the bottom center of the diverter plate 1. The flow channel rotary valve type cutter is provided with a blade 3.1 at one end extending into the cutter groove 1.2, and provided with a hexagonal wrench position 3.2 at one end exposed outside the diverter plate 1; the main injection nozzle 4 is arranged at the top center of the diverter plate 1, and the main injection nozzle 4 is provided with an injection material outlet at one end extending into the diverter plate 1 and connected with the vector intersection of the first diverter channel 1.1, and the injection material inlet at one end exposed outside the diverter plate 1; a plurality of sub-injection nozzles 5 are arranged at the bottom of the diverter plate 1, and each sub-injection nozzle 5 is provided with an injection material inlet at one end extending into the diverter plate 1, and correspondingly connected with a second diverter channel 2.1 provided in an insert 2, and the injection material outlet at one end exposed outside the diverter plate 1;

[0067] See also Figure 1 As shown, in actual use, the end of the flow channel rotary valve type cutter provided with a blade 3.1 extends into the diverter plate 1, and the end provided with a hexagonal wrench position 3.2 is embedded in the fixed mold fixing plate 7 of the injection mold; the end of the main injection nozzle 4 provided with an injection material outlet extends into the diverter plate 1, and the end provided with an injection material inlet passes through the fixed mold panel 6 of the injection mold and is exposed outside the fixed mold panel 6; the end of each of the sub-injection nozzles 5 provided with an injection material inlet extends into the diverter plate 1, and the end provided with an injection material outlet passes through the fixed mold fixing plate 7 and the fixed mold plate 8 of the injection mold in turn and extends into the fixed mold cavity of the fixed mold plate 8.

[0068] See also Figure 1 , Fig.12 and Fig.13 As shown, in the present invention, the sub-injection nozzle 5 is a combined hot nozzle, which includes a hot nozzle head 5.1, a hot nozzle head protective sleeve 5.2 and a hot nozzle head flow channel pipeline 5.3. One end of the hot nozzle head flow channel pipeline 5.3 is extended in the diverter plate 1 and is correspondingly connected to the second diverter channel 2.1 of an insert 2 embedded in the diverter plate 1, and the other end is connected to the hot nozzle head 5.1, passes through the fixed mold fixing plate 7 and is inserted into the hot nozzle head protective sleeve 5.2. One end of the hot nozzle head protective sleeve 5.2 is fixedly connected to the bottom of the fixed mold fixing plate 7, and the other end is embedded in the fixed mold plate 8 and extends into the fixed mold cavity of the fixed mold plate 8.

[0069] More specifically, in the present invention, the notch end of the cutter groove 1.2 and the notch end of each insert groove 1.3 are both open to the outside of the diverter plate 1, and the bottom end of the cutter groove 1.2 and the bottom end of each insert groove 1.3 are both arranged on the inside of the diverter plate 1; Figure 3As shown, a first through hole 1.3a is provided at the bottom of each insert groove 1.3, and one or more second through holes 1.3b are provided on the groove wall of each insert groove 1.3 near the bottom side of the diverter plate 1; the first through hole 1.3a corresponding to each insert groove 1.3 is used to connect the first diverter channel 1.1 and the second diverter channel 2.1 in the corresponding insert 2; the second through hole 1.3b corresponding to each insert groove 1.3 is used to connect the second diverter channel 2.1 in the corresponding insert 2 and the corresponding sub-injection nozzle 5; when each insert 2 is embedded in the corresponding insert groove 1.3, the second diverter channel 2.1 arranged in each insert 2 will be respectively connected with the first through hole 1.3a and the second through hole 1.3b arranged in the corresponding insert groove 1.3.

[0070] More specifically, in the present invention, refer to Figure 2 and Figure 3 As shown, the first branch flow channel 1.1 includes a plurality of first branch flow channels 1.1a which intersect each other in a vector manner, and one end of the plurality of first branch flow channels 1.1a which intersect each other in a vector manner is respectively connected to the injection material outlet of the main injection nozzle 4 and the bottom of the cutter groove 1.2, and the other ends of the plurality of first branch flow channels 1.1a are connected one by one with a plurality of insert grooves 1.3 opened on the outer peripheral side of the diverter plate 1, and each first branch flow channel 1.1a is also connected to a second branch flow channel 2.1 in an insert 2 embedded in the corresponding insert groove 1.3 through a first through hole 1.3a opened at the bottom of the corresponding insert groove 1.3.

[0071] As a preferred embodiment of the present invention: Figure 5 and Figure 6 As shown, the second flow distribution channel 2.1 includes a second branch flow channel 2.1a, and one end of the second main flow channel 2.1a is correspondingly connected to a first branch flow channel 1.1a of the first flow distribution channel 1.1, and the other end is correspondingly connected to the injection material inlet of a sub-injection nozzle 5.

[0072] In this preferred embodiment, each insert 2 includes a first petal block 2.2 and a second petal block 2.3, and the first petal block 2.2 and the second petal block 2.3 are fastened together by a positioning pin; wherein a second branch flow channel groove A2.2a is provided on the surface where the first petal block 2.2 and the second petal block 2.3 are fastened together, and a second branch flow channel groove B2.3a is provided on the surface where the second petal block 2.3 and the first petal block 2.2 are fastened together, and a second branch flow channel groove B2.3a is also provided at the bottom of the groove There is a third through hole 2.4, which is connected to a second through hole 1.3b opened on the corresponding insert groove 1.3; when the first petal block 2.2 and the second petal block 2.3 in this preferred example are buckled together, a second branch flow channel groove A2.2a opened on the first petal block 2.2 matches and fits with a second branch flow channel groove B2.3a opened on the second petal block 2.3, and together constitute the second diversion channel 2.1 in this preferred example which only includes a second branch flow channel 2.1a.

[0073] As another preferred embodiment of the present invention: Figures 2 to 4 As shown, each second branch channel 2.1 includes two or more second branch channels 2.1a; in this preferred example, one end of each second branch channel 2.1a included in each second branch channel 2.1 is connected to a first branch channel 1.1a of the first branch channel 1.1, and the other end is connected to the injection material inlet of a sub-injection nozzle 5.

[0074] In this preferred embodiment, each insert 2 includes a first petal block 2.2 and a second petal block 2.3, and the first petal block 2.2 and the second petal block 2.3 are fastened together by a positioning pin; wherein, two or more second branch flow channel grooves A2.2a are provided on the surface where the first petal block 2.2 and the second petal block 2.3 are fastened together, and two or more second branch flow channel grooves B2.3a are provided on the surface where the second petal block 2.3 and the first petal block 2.2 are fastened together, and each second branch flow channel groove B2.3b is also provided at the bottom of the groove. A third through hole 2.4 is provided, and each third through hole 2.4 is connected to a second through hole 1.3b opened on the corresponding insert groove 1.3; when the first petal block 2.2 and the second petal block 2.3 in this preferred example are buckled together, the two or more second branch flow channel grooves A2.2a opened on the first petal block 2.2 match and fit with the two or more second branch flow channel grooves B2.3a opened on the second petal block 2.3, and together constitute a second diversion channel 2.1 comprising two or more second branch flow channels 2.1a.

[0075] In the above preferred example, a vector intersection groove 3.3 matching the vector intersection part of the first diversion channel 1.1 is opened in the middle of the blade 3.1 of the flow channel rotary cutter 3, and the vector intersection groove 3.3 includes a main groove 3.3a corresponding to the main injection nozzle 4 and a plurality of sub-grooves 3.3b connected to the main groove 3.3a. The main groove 3.3a also matches and matches the middle part of the vector intersection part of the first diversion channel 1.1, and the plurality of sub-grooves 3.3b are matched and connected with the plurality of first branch flow channels 1.1a of the first diversion channel 1.1 in a one-to-one correspondence.

[0076] The present invention provides a method for using a hot runner system with an insert-embedded manifold structure, including an installation method for the hot runner system with an insert-embedded manifold structure in the preferred example and a method for cleaning residual materials in the flow channel of the hot runner system with an insert-embedded manifold structure in the preferred example;

[0077] Among them, the installation method of the hot runner system with the insert embedded manifold structure in the above preferred example specifically includes the following steps:

[0078] S1-1, assembly of inserts and diverter plates: firstly, the first petal 2.2 and the second petal 2.3 of the insert 2 are combined together, connected as a whole by the positioning pin 16, and then correspondingly inserted into the insert groove 1.3 in the diverter plate 1, and then each insert 2 is fastened to the diverter plate 1 in sequence by fixing bolts, thus completing the assembly of the insert 2 and the diverter plate 1;

[0079] S1-2, assembling the main injection nozzle and the fixed mold panel of the injection mold: embedding the main injection nozzle 4 into the fixed mold panel 6 of the injection mold, and fastening it to the fixed mold panel 6 through fixing bolts, thus completing the assembly of the main injection nozzle 4 and the fixed mold panel 6 of the injection mold;

[0080] S1-3, assembling the diverter plate and the fixed mold panel of the injection mold: first, place the diverter plate 1 with the insert 2 embedded in step S1-1 on the side of the fixed mold panel 6 on which the main injection nozzle 4 is installed in step S1-2, and align the channel entrance of the first diverter channel 1.1 of the diverter plate 1 with the injection material outlet of the main injection nozzle 4, and at the same time, set a certain number of upper adjustment pads 9 between the diverter plate 1 and the fixed mold panel 6 as needed, and then fasten the diverter plate 1 and the fixed mold panel 6 together by fixing screws, and clamp the upper adjustment pads 9 set on the diverter plate 1 and the fixed mold panel 6, so as to complete the assembly of the diverter plate 1 and the fixed mold panel 6 of the injection mold;

[0081] S1-4, assembling the sub-injection nozzles with the diverter plate and the fixed mold plate of the injection mold: first, align one end of each sub-injection nozzle 5 with the injection material inlet into a second through hole 1.3b provided at the bottom of the diverter plate 1 in sequence, and align one end of each sub-injection nozzle 5 with the injection material outlet into the sub-injection nozzle through hole 7.2 opened in the fixed mold plate 7 of the injection mold in sequence, and extend to the bottom of the fixed mold plate 7. At the same time, a certain number of lower adjustment pads 10 are arranged between the diverter plate 1 and the fixed mold plate 7, and a certain number of equal-height support plates 11 are arranged between the fixed mold plate 7 and the fixed mold panel 6. Finally, the fixed mold plate 7, the equal-height support plates 11 and the fixed mold panel 6 are fastened together by fixing screws, and the lower adjustment pads 10 arranged between the diverter plate 1 and the fixed mold plate 7 are clamped, so as to complete the assembly of the sub-injection nozzles 5 with the diverter plate 1 and the fixed mold plate 7 of the injection mold;

[0082] S1-5, installation of the runner rotary cutter and the fixed mold plate of the injection mold: the end of the runner rotary cutter 3 provided with a blade 3.1 is passed through the cutter through hole 7.1 provided in the fixed mold fixing plate 7 and extended into the cutter groove 1.2 provided at the bottom of the diverter plate 1 installed in step S1-3, and it is positioned in the cutter groove 1.2 by a positioning pin, and the end of the runner rotary cutter 3 provided with a hexagonal wrench position 3.2 is left in the cutter through hole 7.1 provided in the fixed mold fixing plate 7 of the injection mold, and then the fixed mold plate 8 of the injection mold is placed on the bottom of the fixed mold fixing plate 7, and the sub-injection nozzle 5 installed in step S4 is extended to the bottom of the fixed mold fixing plate 7 and inserted into the sub-injection nozzle through hole opened on the fixed mold plate 8, and finally the fixed mold plate 8 is fastened together with the fixed mold fixing plate 7 by fixing screws, and the installation of the runner rotary cutter 3 and the fixed mold plate 8 of the injection mold is completed;

[0083] At this point, the installation of the hot runner system of the insert embedded manifold structure in the preferred embodiment is completed, that is, the assembly of the fixed mold 100 of the injection mold is completed. Fig. 9 As shown;

[0084] The method for cleaning residual materials in the flow channel of the hot runner system with the insert embedded manifold structure in the above preferred example specifically comprises the following steps:

[0085] S2-1. After the product is produced by the injection mold, the fixing screws 12 connecting the fixed mold plate 8 and the fixed mold fixing plate 7 of the injection mold are first removed, and then the injection molding machine is driven to work, and the fixed mold 100 of the injection mold is molded with the movable mold 200. After the movable and fixed molds 200 and 100 are molded, the first connecting module 300 is used to connect and lock the movable mold plate 201 of the movable mold 200 with the fixed mold plate 8 of the fixed mold 100, see Fig.10 and Fig.11 As shown;

[0086] S2-2, drive the injection molding machine to work again, open the injection mold, open the fixed mold plate 8 and the movable mold 200 together, then remove the positioning pin 14 used to position the runner rotary cutter 3, use a tool that matches the runner rotary cutter 3 to make the runner rotary cutter 3 start to rotate, and cut off the runner residual material A500 in the runner of the main injection nozzle 4 and the runner connection of the diverter plate 1 along the circumferential direction, then take out the runner residual material A500 in the runner of the main injection nozzle 4, and at the same time remove the protective cover of the branch injection nozzle 5, and remove the fixing screws 13 connecting the fixed mold fixing plate 7 and the fixed mold panel 6, finally drive the injection molding machine to work again, close the fixed mold 100 and the movable mold 200 of the injection mold, and after the movable and fixed molds 200 and 100 are closed, use the second connecting module 400 to connect and lock the fixed mold fixing plate 7 of the fixed mold 100 with the fixed mold plate 8, refer to Fig.12 and Fig.13 As shown;

[0087] S2-3. Drive the injection molding machine to work again, open the injection mold again, so that the fixed mold fixing plate 7 and the fixed mold plate 8 are opened together with the movable mold 200 part, then remove the fixing bolts 15 of the fixed insert 2, and use special tools to remove the insert 2 from the diverter plate 1 in sequence. At this time, the lower plane of the insert 2 will simultaneously cut off the runner residue B600 vertically connected to the sub-injection nozzle 5, then use the tool to remove the combined hot nozzle at the front end of the sub-injection nozzle 5, take out the runner residue B600 in the hot nozzle of the sub-injection nozzle 5, and finally remove the positioning pin 16 used to connect and position the first petal block 2.2 and the second petal block 2.3 of the insert 2, separate the first petal block 2.2 and the second petal block 2.3 of the insert 2, and take out the runner residue C700 in the insert 2, refer to Figures 14 to 17 As shown;

[0088] At this point, all the residual materials in the hot runner system with the insert embedded manifold structure in the preferred example are completed (see Fig.18 and Fig.19 ) cleaning.

[0089] Finally, it should be noted that the above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for using a hot runner system with an insert-embedded manifold structure, characterized in that: The invention comprises an installation method of a hot runner system with an insert embedded manifold structure and a method for cleaning residual materials in a flow channel of the hot runner system with an insert embedded manifold structure; The hot runner system of the insert-embedded manifold structure comprises a manifold (1), a first manifold channel (1.1) is provided inside the manifold (1), a cutter groove (1.2) is provided at the bottom of the manifold (1) and located at the intersection of the vectors of the first manifold channel (1.1), a plurality of insert grooves (1.3) are provided on the outer peripheral side of the manifold (1), a flow channel rotary cutter (3) is installed in the cutter groove (1.2) and is matched with the intersection of the vectors of the first manifold channel (1.1) and is corresponding to the rotary cut of the manifold, an insert (2) is detachably embedded in each of the insert grooves (1.3), a second manifold channel (2.1) is provided in each of the insert grooves (2), and the first manifold channel (1.1) is respectively connected with the cutter groove (1.2) and the second manifold channel (2.1) provided in each of the inserts (2); The invention also comprises a main injection nozzle (4) and a plurality of sub-injection nozzles (5); the main injection nozzle (4) is arranged at the top of the diverter plate (1), and one end of the main injection nozzle (4) provided with an injection material outlet is extended into the diverter plate (1) and is connected to the vector intersection of the first diverter channel (1.1), and one end of the main injection nozzle (4) provided with an injection material inlet is exposed outside the diverter plate (1); the plurality of sub-injection nozzles (5) are all arranged at the bottom of the diverter plate (1), and one end of each sub-injection nozzle (5) provided with an injection material inlet is extended into the diverter plate (1) and corresponds to a portion provided with a first diverter channel (1.1) in an insert (2). The second flow distribution channel (2.1) of the injection mold is connected, and one end of each sub-injection nozzle (5) provided with an injection material outlet is exposed outside the flow distribution plate (1); when in use, the end of the main injection nozzle (4) provided with an injection material outlet extends inside the flow distribution plate (1), and the end provided with an injection material inlet passes through the fixed mold panel (6) of the injection mold and is exposed outside the fixed mold panel (6); the end of each sub-injection nozzle (5) provided with an injection material inlet extends inside the flow distribution plate (1), and the end provided with an injection material outlet passes through the fixed mold fixing plate (7) and the fixed mold plate (8) of the injection mold in sequence, and extends into the fixed mold cavity of the fixed mold plate (8); Each of the inserts (2) comprises a first flap (2.2) and a second flap (2.3); the first flap (2.2) and the second flap (2.3) are fastened together by a positioning pin; one or more second branch flow channel grooves A (2.2a) are provided on a surface where the first flap (2.2) and the second flap (2.3) are fastened together; one or more second branch flow channel grooves B (2.3a) are provided on a surface where the second flap (2.3) and the first flap (2.2) are fastened together; and a groove bottom of each second branch flow channel groove B (2.3a) is also provided. A third through hole (2.4) is provided, and each of the third through holes (2.4) is connected to a second through hole (1.3b) provided on a corresponding insert groove (1.3); when the first flap (2.2) and the second flap (2.3) are buckled together, one or more second branch flow channel grooves A (2.2a) provided on the first flap (2.2) and one or more second branch flow channel grooves B (2.3a) provided on the second flap (2.3) correspond to each other and match and match, and together form a second flow branch channel (2.1) containing one or more second branch flow channels (2.1a); The installation method of the hot runner system with an insert embedded manifold structure specifically includes the following steps: S1-1, assembly of the insert and the diverter plate: firstly, the first petal (2.2) and the second petal (2.3) of the insert (2) are combined together, connected as a whole with a positioning pin, and then correspondingly inserted into the insert groove (1.3) in the diverter plate (1), and then each insert (2) and the diverter plate (1) are fastened together in sequence with fixing bolts, thus completing the assembly of the insert (2) and the diverter plate (1); S1-2, assembling the main injection nozzle and the fixed mold panel of the injection mold: embedding the main injection nozzle (4) into the fixed mold panel (6) of the injection mold, and fastening it to the fixed mold panel (6) through fixing bolts, thus completing the assembly of the main injection nozzle (4) and the fixed mold panel (6) of the injection mold; S1-3, assembling the diverter plate and the fixed mold panel of the injection mold: first, place the diverter plate (1) with the insert (2) embedded in step S1-1 on the side of the fixed mold panel (6) on which the main injection nozzle (4) is installed in step S1-2, and align the channel entrance of the first diverter channel (1.1) of the diverter plate (1) with the injection material outlet of the main injection nozzle (4), and at the same time, set a certain number of upper adjustment pads (9) between the diverter plate (1) and the fixed mold panel (6) as needed, and then fasten the diverter plate (1) and the fixed mold panel (6) together by fixing screws, and clamp the upper adjustment pads (9) set between the diverter plate (1) and the fixed mold panel (6), so as to complete the assembly of the diverter plate (1) and the fixed mold panel (6) of the injection mold; S1-4, assembling the sub-injection nozzles with the manifold plate and the fixed mold plate of the injection mold: first, align one end of each sub-injection nozzle (5) with an injection material inlet and insert it into a second through hole (1.3b) provided at the bottom of the manifold plate (1), align one end of each sub-injection nozzle (5) with an injection material outlet and insert it into the sub-injection nozzle through hole provided in the fixed mold plate (7) of the injection mold, and extend it to the bottom of the fixed mold plate (7). At the same time, between the manifold plate (1) and the fixed mold plate (7), A certain number of lower adjustment pads (10) are arranged between the fixed mold fixing plate (7) and the fixed mold panel (6), and a certain number of equal-height support plates (11) are arranged between the fixed mold fixing plate (7) and the fixed mold panel (6). Finally, the fixed mold fixing plate (7), the equal-height support plates (11) and the fixed mold panel (6) are fastened together by fixing screws, and the lower adjustment pads (10) arranged between the diverter plate (1) and the fixed mold fixing plate (7) are clamped, so that the assembly of the sub-injection nozzle (5) with the diverter plate (1) and the fixed mold fixing plate (7) of the injection mold is completed; S1-5, installation of the flow channel rotary cutter and the fixed mold plate of the injection mold: one end of the flow channel rotary cutter (3) provided with a blade (3.1) is passed through the cutter through hole provided in the fixed mold fixing plate (7) and extended into the cutter groove (1.2) provided at the bottom of the diverter plate (1) installed in step S1-3, and is positioned in the cutter groove (1.2) by a positioning pin, and one end of the flow channel rotary cutter (3) provided with a hexagonal wrench position (3.2) is left on the fixed mold fixing plate of the injection mold. The fixed mold plate (8) of the injection mold is then placed at the bottom of the fixed mold fixing plate (7), and the portion of the sub-injection nozzle (5) installed in step S4 extending to the bottom of the fixed mold fixing plate (7) is aligned and inserted into the sub-injection nozzle through hole provided on the fixed mold fixing plate (8), and finally the fixed mold plate (8) and the fixed mold fixing plate (7) are fastened together by fixing screws, thus completing the installation of the flow channel rotary cutter (3) and the fixed mold plate (8) of the injection mold; At this point, the installation of the hot runner system with the insert embedded manifold structure is completed, that is, the assembly of the fixed mold (100) of the injection mold is completed; The method for cleaning residual material in the flow channel of the hot runner system with an insert embedded manifold structure specifically comprises the following steps: S2-1. After the injection mold is used to produce the product, the fixing screws connecting the fixed mold plate (8) of the injection mold and the fixed mold fixing plate (7) are first removed, and then the injection molding machine is driven to work, and the fixed mold (100) of the injection mold is molded together with the movable mold (200). After the movable mold (200) and the fixed mold (100) are molded together, the first connecting module (300) is used to connect and lock the movable mold plate (201) of the movable mold (200) and the fixed mold plate (8) of the fixed mold (100); S2-2, the injection molding machine is driven to work again, the injection mold is opened, so that the fixed mold plate (8) and the movable mold (200) are opened together, and then the positioning pin used to position the flow channel rotary cutter (3) is removed, and then the flow channel rotary cutter (3) is driven to start rotating, and the flow channel residual material A (500) in the flow channel of the main injection nozzle (4) is cut off from the flow channel connection of the manifold (1) along the circumferential direction, and then the flow channel residual material A in the flow channel of the main injection nozzle (4) is cut off. (500), and at the same time, remove the protective cover of the sub-injection nozzle (5), and remove the fixing screws connecting the fixed mold fixing plate (7) and the fixed mold panel (6), and finally drive the injection molding machine to work again, close the fixed mold (100) and the movable mold (200) of the injection mold, and after the movable and fixed molds (200, 100) are closed, use the second connecting module (400) to connect and lock the fixed mold fixing plate (7) of the fixed mold (100) with the fixed mold plate (8); S2-3, drive the injection molding machine to work again, open the injection 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 remove the fixing bolts of the fixed insert (2), and remove the insert (2) from the diverter plate (1) in sequence. At this time, the lower plane of the insert (2) will simultaneously cut off the flow channel residue B (600) vertically connected to the sub-injection nozzle (5), then remove the front end hot nozzle head of the sub-injection nozzle (5), and take out the flow channel residue B (600) in the sub-injection nozzle (5), and finally remove the positioning pins used to connect and position the first petal block (2.2) and the second petal block (2.3) of the insert (2), separate the first petal block (2.2) and the second petal block (2.3) of the insert (2), and take out the flow channel residue C (700) in the insert (2); At this point, the cleaning of all the residual materials in the flow channel of the hot runner system with the insert embedded manifold structure is completed.

2. The method for using the hot runner system with a block-embedded manifold structure according to claim 1, characterized in that: The flow channel rotary cutter (3) is a flow channel rotary valve type cutter and is located at the bottom of the diverter plate (1). One end of the flow channel rotary valve type cutter is provided with a blade (3.1) extending into the cutter groove (1.2) and is positioned and connected to the cutter groove (1.2) via a positioning pin. One end of the flow channel rotary valve type cutter is provided with a hexagonal wrench position (3.2) and is exposed outside the diverter plate (1); When in use, the flow channel rotary valve cutter has one end provided with a blade (3.1) extending into the diverter plate (1), and one end provided with a hexagonal wrench position (3.2) embedded in the fixed mold fixing plate (7) of the injection mold.

3. The method for using the hot runner system for the block-embedded manifold structure according to claim 1, characterized in that: The notch end of the cutter groove (1.2) and the notch end of each insert groove (1.3) are both openly arranged toward the outside of the diverter plate (1), and the bottom end of the cutter groove (1.2) and the bottom end of each insert groove (1.3) are both arranged toward the inside of the diverter plate (1); A first through hole (1.3a) is provided at the bottom of each insert groove (1.3), and one or more second through holes (1.3b) are provided on the groove wall of each insert groove (1.3) close to the bottom side of the diverter plate (1); The first through hole (1.3a) corresponding to each insert groove (1.3) is used to connect the first flow diversion channel (1.1) and the second flow diversion channel (2.1) in the corresponding insert (2); The second through hole (1.3b) corresponding to each insert groove (1.3) is used to communicate with the second flow distribution channel (2.1) in the corresponding insert (2) and the corresponding sub-injection nozzle (5); When each insert (2) is embedded in the corresponding insert groove (1.3), the second flow distribution channel (2.1) arranged in each insert (2) will be respectively connected to the first through hole (1.3a) and the second through hole (1.3b) arranged in the corresponding insert groove (1.3).

4. The method for using the hot runner system for the block-embedded manifold structure according to claim 3, characterized in that: The first flow distribution channel (1.1) comprises a plurality of first branch flow channels (1.1a) intersecting in a vector manner, wherein one end of the plurality of first branch flow channels (1.1a) intersecting in a vector manner is respectively connected to the injection material outlet of the main injection nozzle (4) and the cutter groove (1.2), and the other end of the plurality of first branch flow channels (1.1a) is connected in a one-to-one correspondence with a plurality of insert grooves (1.3) provided on the outer peripheral side of the flow distribution plate (1), and each of the first branch flow channels (1.1a) is also connected to a second flow distribution channel (2.1) in an insert (2) embedded in the corresponding insert groove (1.3) via a first through hole (1.3a) provided at the bottom of the corresponding insert groove (1.3).

5. The method for using the hot runner system for the block-embedded manifold structure according to claim 3, characterized in that: Each of the second branch flow channels (2.1) comprises one or more second branch flow channels (2.1a), and one end of each second branch flow channel (2.1a) contained in each of the second branch flow channels (2.1) is correspondingly connected to a first branch flow channel (1.1a) of the first branch flow channel (1.1), and the other end is correspondingly connected to the injection material inlet of a sub-injection nozzle (5).

6. The method for using the hot runner system for the block-embedded manifold structure according to claim 1, characterized in that: A vector intersection groove (3.3) matching and matching the vector intersection position of the first diverter channel (1.1) is provided in the middle of the blade (3.1) of the flow channel rotary cutter (3); the vector intersection groove (3.3) comprises a main groove (3.3a) correspondingly connected to the main injection nozzle (4) and a plurality of sub-grooves (3.3b) connected to the main groove (3.3a); the main groove (3.3a) also matches and matches the middle of the vector intersection position of the first diverter channel (1.1); the plurality of sub-grooves (3.3b) are matched, matched and connected to the plurality of first branch flow channels (1.1a) of the first diverter channel (1.1) in a one-to-one correspondence.

Images