CN115284549A - Needle valve type multi-material multi-azimuth injection molding hot runner structure - Google Patents
Needle valve type multi-material multi-azimuth injection molding hot runner structure Download PDFInfo
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- CN115284549A CN115284549A CN202111671003.4A CN202111671003A CN115284549A CN 115284549 A CN115284549 A CN 115284549A CN 202111671003 A CN202111671003 A CN 202111671003A CN 115284549 A CN115284549 A CN 115284549A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 145
- 239000000463 material Substances 0.000 title claims abstract description 59
- 230000001360 synchronised effect Effects 0.000 claims abstract description 74
- 238000002347 injection Methods 0.000 claims abstract description 67
- 239000007924 injection Substances 0.000 claims abstract description 67
- 229920003023 plastic Polymers 0.000 claims description 65
- 239000004033 plastic Substances 0.000 claims description 65
- 238000000465 moulding Methods 0.000 claims description 45
- 239000012768 molten material Substances 0.000 abstract description 57
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000002844 melting Methods 0.000 description 14
- 230000008018 melting Effects 0.000 description 14
- 239000011148 porous material Substances 0.000 description 9
- 238000004891 communication Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 238000012856 packing Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/30—Flow control means disposed within the sprue channel, e.g. "torpedo" construction
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of molds, and particularly relates to a needle valve type multi-material multi-azimuth injection molding hot runner structure. The injection molding module comprises an injection molding module main body, wherein an injection molding alignment plate is arranged in the injection molding module main body. In the injection molding process, the injection molding alignment plate is used for aligning molten materials, the molten materials enter the needle valve injection pipe through the injection alignment plate, the multi-azimuth synchronous hot runner control assembly is moved to a position staggered with the side hot runner part to slowly and uniformly fill the molten materials into the needle valve injection pipe until the molten materials are completely filled, the multi-azimuth synchronous hot runner control assembly is moved to open the side hot runner part to perform multi-azimuth synchronous injection molding on the molten materials, the injection molding speed is greatly improved, a cavity can be quickly and uniformly filled, the production cycle is shortened, the injection molding pipe positioning part plays a role in positioning and fixing the needle valve injection pipe, the needle valve injection pipe is prevented from loosening in the injection molding process, and the injection molding precision is improved.
Description
Technical Field
The invention belongs to the technical field of molds, and relates to a needle valve type multi-material multi-azimuth injection molding hot runner structure.
Background
For injection molding plastic parts, plastic particles in a molten state enter a plastic mold from a nozzle of an injection molding machine in the production process, and qualified products are obtained after the plastic particles are cooled, solidified and ejected in the plastic mold. At present, in the field of injection molds, particularly in the production process of injection molds with high requirements, hot runner mold systems are widely applied. The hot runner mold system is heated to ensure that the plastic in the runner and sprue is in a molten state. The hot runner structure in the mould of current, sprue mouth are comparatively single, adopt single runner structure when generally moulding plastics, are difficult to carry out the diversified synchronous injection moulding of many materials material, and the speed of moulding plastics is slower, is difficult to the full die cavity of the quick even filling of the melting material of multiple material, and production cycle is longer, and is difficult to control the ageing of multiple melting material.
In order to overcome the defects of the prior art, various solutions are proposed through continuous exploration, for example, chinese patent discloses a hot runner needle valve type nozzle for injection molding [ application number: 200810091887.4], including nozzle body and heater, this internal runner and the valve needle that supplies the melting resin to flow that is equipped with, the front end of body sets up the runner that supplies the melting resin to pour into the mould, its characterized in that: the gate is eccentrically disposed with respect to a center position of the body. According to the invention, due to the eccentric arrangement of the pouring gate, when a product with a narrow and concave space is manufactured, the pouring gate can enter the narrow and concave part, so that the pouring gate mark is not left on the appearance surface of the product but is left on the inner side; in addition, the contact between the needle and the molten resin is minimized, so that the needle can be prevented from being damaged. However, in the using process of the scheme, multi-material multi-direction synchronous injection molding is still difficult to carry out, the injection molding speed is slow, the cavity is difficult to be filled with the molten materials of various materials quickly and uniformly, and the defect of long production period exists.
Disclosure of Invention
The invention aims to solve the problems and provides a needle valve type multi-material multi-azimuth injection molding hot runner structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a many materials of needle valve type, diversified hot runner structure of moulding plastics, is including the module main part of moulding plastics, the module main part of moulding plastics in be equipped with the counterpoint board of moulding plastics, counterpoint board bottom of moulding plastics be equipped with the needle valve and mould plastics the pipe setting element, mould plastics the pipe setting element and mould plastics a tub looks butt cooperation with the needle valve, mould plastics and be equipped with in the counterpoint board and extend to inject into in the module main part of moulding plastics and mould plastics tub looks sliding fit's diversified synchronous hot runner control assembly with the needle valve, the needle valve mould plastics intraductally be equipped with lateral part hot runner portion, lateral part hot runner portion and diversified hot runner synchronous control assembly's position corresponding.
In foretell many materials of needle valve type, diversified hot runner structure of moulding plastics, diversified synchronous hot runner control assembly including set up the diversified synchronous hot runner counterpoint slide that counterpoints the board of moulding plastics, diversified synchronous hot runner counterpoint slide extend to let in to injection moulding module main part in and diversified synchronous hot runner counterpoint slide and needle valve injection moulding pipe looks sliding fit, diversified synchronous hot runner counterpoint slide in be equipped with counterpoint runner spare, counterpoint runner spare and lateral part hot runner portion's position corresponding.
In the needle valve type multi-material multi-azimuth injection molding hot runner structure, the alignment runner part comprises a plurality of alignment runner holes arranged in the multi-azimuth synchronous hot runner alignment slide cylinder, the alignment runner holes are distributed in an annular array along the center point of the multi-azimuth synchronous hot runner alignment slide cylinder, and the alignment runner holes correspond to the positions of the lateral hot runner parts.
In the needle valve type multi-material and multi-azimuth injection molding hot runner structure, the injection molding module body is internally provided with a plurality of cavity communicating pore passages, and the alignment flow channel hole is positioned between the lateral hot runner part and the cavity communicating pore passages.
In the needle valve type multi-material and multi-azimuth injection molding hot runner structure, a rack is arranged at the top of the multi-azimuth synchronous hot runner aligning sliding cylinder, a rack driving wheel is arranged in the injection molding aligning plate, and the rack driving wheel is meshed with the rack.
In the needle valve type multi-material and multi-azimuth injection molding hot runner structure, the lateral hot runner part comprises a plurality of tube wall lateral hot runners arranged in the needle valve injection tube, and the alignment runner hole is positioned between the tube wall lateral hot runners and the cavity communication hole channel.
In foretell needle valve type many materials, diversified hot runner structure of moulding plastics, the pipe setting element of moulding plastics including setting up in the needle valve pipe positioning seat of the module main part bottom of moulding plastics, needle valve pipe positioning seat and needle valve injection moulding pipe looks butt cooperation, needle valve pipe positioning seat in be equipped with the bottom groove of moulding plastics, the bottom groove of moulding plastics link to each other with the needle valve injection moulding pipe, the module main part bottom of moulding plastics be equipped with the connecting channel, the connecting channel link to each other with the bottom groove of moulding plastics.
In the needle valve type multi-material multi-azimuth injection molding hot runner structure, the needle valve tube positioning seat is internally provided with the sliding cylinder protection supporting block, the sliding cylinder protection supporting block is connected with the needle valve tube positioning seat through the spring, and the sliding cylinder protection supporting block is positioned under the multi-azimuth synchronous hot runner alignment sliding cylinder.
In the needle valve type multi-material multi-azimuth injection molding hot runner structure, the needle valve tube positioning seat is internally provided with two runner bottom baffles capable of performing reciprocating linear motion along the horizontal direction, the positions of the runner bottom baffles and the bottom injection molding groove are corresponding, the needle valve tube positioning seat is provided with a linear driver, and a power shaft of the linear driver is connected with the runner bottom baffles.
In the needle valve type multi-material and multi-azimuth injection molding hot runner structure, a shunting injection molding channel is arranged in the injection molding alignment plate, a pressurizing mold capable of reciprocating linear motion along the vertical direction is arranged on the injection molding module body, and the pressurizing mold corresponds to the needle valve injection molding pipe in position.
Compared with the prior art, the invention has the advantages that:
1. in the slow injection molding process, the multi-direction synchronous hot runner control assembly is moved to the position staggered with the side hot runner part, so that the molten material is slowly and uniformly filled into the needle valve injection pipe until the molten material is filled. After filling up completely, remove diversified synchronous hot runner control assembly, open lateral part hot runner portion for another kind of melting material carries out diversified synchronous injection moulding, has improved the speed of moulding plastics greatly, can be with the quick even die cavity of filling up of the melting material of multiple different materials, forms many materials heterogeneous composite structure, has shortened production cycle. The injection molding pipe positioning piece plays a role in positioning and fixing the needle valve injection molding pipe, the needle valve injection molding pipe is prevented from loosening in the injection molding process, the injection molding precision is improved, when the same material is injected, the timeliness of the molten material can be controlled, the material is injected into the cavity from the side part or the bottom as required, the controllability of injection molding stress is achieved, and the bonding strength of the multi-material plastic part is improved.
2. When molten materials are slowly filled into the needle valve injection pipe, the bottom of the needle valve injection pipe is blocked by the runner bottom baffle, when the needle valve injection pipe is injected, the runner bottom baffle is moved to open a channel at the bottom of the needle valve injection pipe, the linear driver is used for driving the runner bottom baffle to move, and the automation degree is high.
3. During injection molding, the molten material is injected from the shunt injection molding channel, and the molten material is pressurized by the pressurizing mold during the process of filling the molten material, so that the molten material can be synchronously injected into the cavity in multiple directions.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic view of a multi-orientation synchronous hot runner control assembly.
In the figure: the injection molding device comprises an injection molding module main body 1, an injection molding alignment plate 2, a needle valve injection molding pipe 3, an injection molding pipe positioning piece 4, a multi-azimuth synchronous hot runner control assembly 5, a side hot runner part 6, a multi-azimuth synchronous hot runner alignment slide cylinder 7, an alignment flow passage part 8, an alignment flow passage hole 9, a cavity communication pore passage 10, a rack 11, a rack driving wheel 12, a pipe wall side hot runner 13, a needle valve pipe positioning seat 133, a slide cylinder protection supporting block 14, a spring 15, a flow passage bottom baffle 16, a linear driver 17, a split injection molding passage 18 and a pressurizing mold 19.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-2, a many materials of needle valve type, diversified hot runner structure of moulding plastics, including the module main part 1 of moulding plastics, the module main part 1 of moulding plastics in be equipped with counterpoint board 2 of moulding plastics, counterpoint board 2 bottom of moulding plastics be equipped with needle valve injection pipe 3, the module main part 1 bottom of moulding plastics be equipped with injection pipe setting element 4, injection pipe setting element 4 and 3 looks butt cooperations of needle valve injection pipe, the counterpoint board 2 of moulding plastics in be equipped with and extend to let in to the module main part 1 of moulding plastics and with 3 looks sliding fit's diversified synchronous hot runner control assembly 5 of needle valve injection pipe, needle valve injection pipe 3 in be equipped with lateral part hot runner portion 6, lateral part hot runner portion 6 corresponding with diversified synchronous hot runner control assembly 5's position.
In this embodiment, in the process of moulding plastics, counterpoint board 2 of moulding plastics is used for counterpoint melting material, can get into needle valve injection pipe 3 through counterpoint board 2 of moulding plastics with the melting material of multiple different materials in, in the slow in-process of moulding plastics, will advance diversified synchronous hot runner control assembly 5 to the dislocation department with lateral part hot runner portion 6 mutually, make the slow even packing of melting material to the needle valve injection pipe 3 in, until filling up, after filling up completely, remove diversified synchronous hot runner control assembly 5, open lateral part hot runner portion 6, make different melting materials carry out diversified synchronous injection moulding, the speed of moulding plastics has been improved greatly, can fill the die cavity with the quick even packing of melting material of multiple different materials, production cycle has been shortened. The injection molding pipe positioning part 4 plays a role in positioning and fixing the needle valve injection molding pipe 3, the needle valve injection molding pipe 3 is prevented from loosening in the injection molding process, and the injection molding precision is improved. When the same kind of molten materials are injected, the timeliness of the molten materials can be controlled, the materials are injected into the cavity from the side or the bottom as required, the controllability of injection molding stress is achieved, and the strength of a plastic part is enhanced.
Combine fig. 1, fig. 2 to show, diversified synchronous hot runner control assembly 5 including set up in moulding plastics counterpoint board 2 in diversified synchronous hot runner counterpoint slide 7, diversified synchronous hot runner counterpoint slide 7 extend and let in to moulding plastics in the module main part 1 and diversified synchronous hot runner counterpoint slide 7 and needle valve injection molding pipe 3 looks sliding fit, diversified synchronous hot runner counterpoint slide 7 in be equipped with counterpoint runner 8, counterpoint runner 8 and lateral part hot runner portion 6's position corresponding.
Specifically speaking, when the melting material is filled to needle valve injection molding pipe 3 in, will counterpoint runner spare 8 and lateral part hot runner portion 6 dislocation set, make the slow even packing of melting material to needle valve injection molding pipe 3 in, until filling up, fill up completely the back, remove diversified synchronous hot runner and counterpoint slide cartridge 7, make counterpoint runner spare 8 and lateral part hot runner portion 6 be linked together, thereby open lateral part hot runner portion 6, make different melting materials carry out diversified synchronous injection molding, the speed of moulding plastics has been improved greatly, can be fast even fill the die cavity, production cycle has been shortened.
Referring to fig. 1 and 2, the alignment runner 8 includes a plurality of alignment runner holes 9 disposed in the multi-directional synchronous hot runner alignment slide 7, the alignment runner holes 9 are distributed in an annular array along the center point of the multi-directional synchronous hot runner alignment slide 7, and the alignment runner holes 9 correspond to the positions of the side hot runner portions 6.
In the embodiment, when the molten material is filled into the needle valve injection pipe 3, the counterpoint channel hole 9 and the lateral part hot runner part 6 are arranged in a staggered mode, the molten material is slowly and uniformly filled into the needle valve injection pipe 3 until the needle valve injection pipe is filled, and after the needle valve injection pipe is completely filled, the multidirectional synchronous hot runner counterpoint slide cylinder 7 is moved, the counterpoint channel hole 9 is communicated with the lateral part hot runner part 6, the lateral part hot runner part 6 is opened, different molten materials are subjected to multidirectional synchronous injection molding, the injection molding speed is greatly improved, a cavity can be quickly and uniformly filled, and the production cycle is shortened.
The injection molding module body 1 is internally provided with a plurality of cavity communicating pore canals 10, and the alignment runner hole 9 is positioned between the side hot runner part 6 and the cavity communicating pore canals 10.
In the embodiment, in the injection molding process, the molten material flows into the cavity communicating pore passage 10 from the alignment runner hole 9 and then flows into the cavity, so that multidirectional synchronous injection molding and filling are completed, and the injection molding speed is improved.
The top of the multi-azimuth synchronous hot runner alignment sliding cylinder 7 is provided with a rack 11, the injection alignment plate 2 is internally provided with a rack driving wheel 12, and the rack driving wheel 12 is meshed with the rack 11.
In this embodiment, when the height of the multi-azimuth synchronous hot runner alignment slide 7 needs to be adjusted, the rack driving wheel 12 is started, and the rack driving wheel 12 and the rack 11 are engaged to drive the rack 1 and the multi-azimuth synchronous hot runner alignment slide 7 to ascend and descend, so as to adjust the position between the alignment runner hole 9 and the lateral hot runner portion 6.
Referring to fig. 1, the side hot runner portion 6 includes a plurality of tube wall side hot runners 13 disposed in the needle valve injection tube 3, and the alignment runner hole 9 is located between the tube wall side hot runners 13 and the cavity communication hole 10.
In this embodiment, during the injection molding process, the molten material flows into the alignment runner hole 9 from the hot runner 13 on the side of the pipe wall, then flows into the cavity communication hole 10, and enters the side of the cavity through the cavity communication hole 10.
Injection molding pipe positioning part 4 including set up in the needle valve pipe positioning seat 133 of 1 bottom of the module main part of moulding plastics, needle valve pipe positioning seat 133 with 3 looks butt cooperations of needle valve injection molding pipe, needle valve pipe positioning seat 133 in be equipped with the bottom groove of moulding plastics, the bottom groove of moulding plastics and needle valve injection molding pipe 3 link to each other, 1 bottom of the module main part of moulding plastics be equipped with the link, the link to each other with the bottom groove of moulding plastics.
In this embodiment, needle valve pipe positioning seat 133 is used for fixing needle valve injection pipe 3 in a positioning manner, and needle valve injection pipe 3 is prevented from loosening in the injection molding process, so that the injection molding precision is improved, and in the injection molding process, molten materials are injected into the bottom injection molding groove and the bottom injection molding groove through the bottom of needle valve injection pipe 3 and injected into the bottom of the cavity to form multi-angle synchronous injection molding. When the same material is injected, the timeliness of the molten material can be controlled, the material is injected into the cavity from the side or the bottom as required, the controllability of injection molding stress is achieved, and the strength of the plastic part is enhanced.
Referring to fig. 1 and 2, a slide cylinder protection supporting block 14 is arranged in the needle valve tube positioning seat 133, the slide cylinder protection supporting block 14 is connected with the needle valve tube positioning seat 133 through a spring 15, and the slide cylinder protection supporting block 14 is located right below the multi-azimuth synchronous hot runner alignment slide cylinder 7.
In this embodiment, when diversified synchronous hot runner counterpoint slide cartridge 7 moves down, can counterpoint slide cartridge 7 bottom to diversified synchronous hot runner through slide cartridge protection tray 14 and play the effect of bearing protection, avoid diversified synchronous hot runner counterpoint slide cartridge 7 and needle valve tube positioning seat 133 to take place hard collision, spring 15 plays the effect of elastic support to slide cartridge protection tray 14, and the protectiveness is better.
As shown in fig. 1-2, two flow channel bottom baffles 16 capable of performing reciprocating linear motion in the horizontal direction are arranged in the needle valve tube positioning seat 133, the flow channel bottom baffles 16 correspond to the bottom injection molding groove in position, a linear driver 17 is arranged on the needle valve tube positioning seat 133, and a power shaft of the linear driver 17 is connected with the flow channel bottom baffles 16.
In this embodiment, the needle valve tube positioning seat 133 and the injection module body 1 are provided with a delay control module for controlling the start of the linear driver 17 and the rack driving wheel 12,
when molten materials are slowly filled into the needle valve injection pipe 3, the bottom of the needle valve injection pipe 3 is blocked by the runner bottom baffle 16, and when injection molding is carried out, the runner bottom baffle 16 is moved to open a channel at the bottom of the needle valve injection pipe 3. When the molten material of the same material is injected, the multidirectional synchronous hot runner alignment sliding cylinder 7 can be matched to control the timeliness of the molten material, the fused surface injected into the cavity by the molten material can deviate from the center of a product by delayed opening, the material is injected into the cavity from the side or the bottom according to needs, and the fused surface is prevented from being positioned at the center of the product when the molten material is synchronously injected, so that the controllability of injection stress is achieved, the strength of a plastic part is enhanced, a fused point is difficult to see from the outside, the surface quality of the plastic part is good, the linear driver 17 is used for driving the runner bottom baffle plate 16 to move, the automation degree is high, and the technical personnel in the field can understand that the air cylinder can be selected by the linear driver 17.
Referring to fig. 1-2, a shunt injection molding channel 18 is arranged in the injection molding alignment plate 2, a pressurizing mold 19 capable of reciprocating and linear motion along the vertical direction is arranged on the injection molding module body 1, and the pressurizing mold 19 corresponds to the needle valve injection molding pipe 3 in position.
In this embodiment, during injection molding, the molten material is injected from the split injection molding channel 18, and during filling the molten material, the pressurizing mold 19 pressurizes the molten material, so as to ensure that the molten material can be synchronously injected into the cavity in multiple directions.
The working principle of the invention is as follows:
in the injection molding process, the injection molding counterpoint plate 2 is used for counterpointing molten materials, the molten materials of various different materials can enter the needle valve injection pipe 3 through the injection molding counterpoint plate 2, in the slow injection molding process, the multi-azimuth synchronous hot runner control component 5 is moved to the position staggered with the side hot runner part 6 to slowly and uniformly fill the molten materials into the needle valve injection pipe 3 until the needle valve injection pipe is completely filled, after the needle valve injection pipe is completely filled, the multi-azimuth synchronous hot runner control component 5 is moved to open the side hot runner part 6 to perform multi-azimuth synchronous injection molding on different molten materials, the injection molding speed is greatly improved, the molten materials of various different materials can be quickly and uniformly filled into a cavity, the production period is shortened, the injection molding pipe positioning part 4 plays a role in positioning and fixing on the needle valve injection pipe 3, the needle valve injection pipe 3 is prevented from loosening in the injection molding process, and the injection molding precision is improved,
when the molten material is filled into the needle valve injection pipe 3, the alignment flow channel part 8 and the lateral part hot runner part 6 are arranged in a staggered mode, so that the molten material is slowly and uniformly filled into the needle valve injection pipe 3 until the molten material is filled, and after the molten material is completely filled, the multi-azimuth synchronous hot runner alignment sliding cylinder 7 is moved to enable the alignment flow channel part 8 to be communicated with the lateral part hot runner part 6, so that the lateral part hot runner part 6 is opened, different molten materials are subjected to multi-azimuth synchronous injection molding, the injection molding speed is greatly improved, a cavity can be quickly and uniformly filled, and the production period is shortened,
when the molten material is filled into the needle valve injection pipe 3, the contraposition runner hole 9 and the lateral part hot runner part 6 are arranged in a staggered way, so that the molten material is slowly and uniformly filled into the needle valve injection pipe 3 until the needle valve injection pipe is fully filled, and after the needle valve injection pipe is fully filled, the multi-azimuth synchronous hot runner contraposition sliding cylinder 7 is moved, so that the contraposition runner hole 9 is communicated with the lateral part hot runner part 6, the lateral part hot runner part 6 is opened, different molten materials are synchronously injected in multiple azimuths, the injection molding speed is greatly improved, a cavity can be quickly and uniformly filled, the production cycle is shortened,
in the injection molding process, the molten material flows into the cavity communicating pore passage 10 from the contraposition runner hole 9 and then flows into the cavity to complete multi-azimuth synchronous injection molding and filling, thereby improving the injection molding speed,
when the height of the multi-azimuth synchronous hot runner contraposition sliding cylinder 7 needs to be adjusted, the rack driving wheel 12 is started, the rack driving wheel 12 is meshed with the rack 11 to drive the rack 1 and the multi-azimuth synchronous hot runner contraposition sliding cylinder 7 to lift, so as to adjust the position between the contraposition runner hole 9 and the lateral hot runner part 6,
in the injection molding process, the molten material flows into the alignment runner hole 9 from the hot runner 13 at the side part of the pipe wall, then flows into the cavity communicating pore passage 10, enters the side part of the cavity through the cavity communicating pore passage 10,
the needle valve tube positioning seat 133 is used for positioning and fixing the needle valve injection tube 3, so that the needle valve injection tube 3 is prevented from loosening in the injection molding process, the injection molding precision is improved, in the injection molding process, molten materials are injected into the bottom injection molding groove and the bottom injection molding groove through the bottom of the needle valve injection tube 3 and injected to the bottom of the cavity to form multi-angle synchronous injection molding,
when the multi-azimuth synchronous hot runner alignment slide cylinder 7 moves downwards, the slide cylinder protection supporting block 14 can play a role in supporting and protecting the bottom of the multi-azimuth synchronous hot runner alignment slide cylinder 7, so that the hard collision between the multi-azimuth synchronous hot runner alignment slide cylinder 7 and the needle valve tube positioning seat 133 is avoided, the spring 15 plays a role in elastically supporting the slide cylinder protection supporting block 14, the protection is better,
a time delay control module is arranged in the needle valve tube positioning seat 133 and the injection module main body 1 and is used for controlling the start of the linear driver 17 and the rack driving wheel 12,
when molten materials are slowly filled into the needle valve injection pipe 3, the bottom of the needle valve injection pipe 3 is blocked by the runner bottom baffle 16, and when injection molding is carried out, the runner bottom baffle 16 is moved to open a channel at the bottom of the needle valve injection pipe 3. When the molten material of the same material is injected, the multi-azimuth synchronous hot runner contraposition slide cylinder 7 can be matched to control the timeliness of the molten material, the fused surface injected into the cavity by the molten material can deviate from the center of the product by delayed opening, the material is injected into the cavity from the side or the bottom according to needs, the fused surface is prevented from being positioned at the center of the product when the molten material is synchronously injected, thereby achieving the controllability of injection stress, enhancing the strength of the plastic part, ensuring that the fused point is difficult to be seen from the outside, ensuring better surface quality of the plastic part, driving the runner bottom baffle 16 to move by the linear driver 17, having higher automation degree,
during injection molding, the molten material is injected from the shunting injection molding passage 18, and in the process of filling the molten material, the pressurizing mold 19 is used for pressurizing the molten material, so that the molten material can be synchronously injected in multiple directions and enter the cavity.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the spirit of the invention.
Although the terms of the injection module main body 1, the injection alignment plate 2, the needle valve injection pipe 3, the injection pipe positioning part 4, the multi-directional synchronous hot runner control assembly 5, the side hot runner part 6, the multi-directional synchronous hot runner alignment slide 7, the alignment flow passage part 8, the alignment flow passage hole 9, the cavity communicating hole 10, the rack 11, the rack driving wheel 12, the pipe wall side hot runner 13, the needle valve pipe positioning seat 133, the slide protection support block 14, the spring 15, the flow passage bottom baffle 16, the linear driver 17, the split injection passage 18, the compression mold 19, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (10)
1. The utility model provides a many materials of needle valve type, diversified hot runner structure of moulding plastics, is including moulding plastics module main part (1), its characterized in that, mould plastics module main part (1) in be equipped with counterpoint board (2) of moulding plastics, counterpoint board (2) bottom of moulding plastics be equipped with needle valve injection pipe (3), module main part (1) bottom of moulding plastics be equipped with injection pipe setting element (4), injection pipe setting element (4) and needle valve injection pipe (3) looks butt cooperation, injection counterpoint board (2) in be equipped with and extend to let in moulding plastics module main part (1) and with needle valve injection pipe (3) looks sliding fit's diversified hot runner synchronous control subassembly (5), injection pipe (3) in be equipped with lateral part hot runner portion (6), lateral part hot runner portion (6) corresponding with the position of diversified synchronous control subassembly (5).
2. The needle valve type multi-material and multi-azimuth injection molding hot runner structure according to claim 1, wherein the multi-azimuth synchronous hot runner control assembly (5) comprises a multi-azimuth synchronous hot runner aligning slide cylinder (7) arranged in the injection molding aligning plate (2), the multi-azimuth synchronous hot runner aligning slide cylinder (7) extends into the injection molding module body (1) and is in sliding fit with the needle valve injection molding pipe (3), an aligning runner component (8) is arranged in the multi-azimuth synchronous hot runner aligning slide cylinder (7), and the aligning runner component (8) corresponds to the position of the lateral hot runner part (6).
3. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 2, wherein the alignment flow passage member (8) comprises a plurality of alignment flow passage holes (9) arranged in the multi-azimuth synchronous hot runner alignment slide cylinder (7), the alignment flow passage holes (9) are distributed in an annular array along the central point of the multi-azimuth synchronous hot runner alignment slide cylinder (7), and the alignment flow passage holes (9) correspond to the positions of the side hot runner portions (6).
4. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 3, wherein a plurality of cavity communicating holes (10) are formed in the injection molding module body (1), and the alignment runner hole (9) is located between the side hot runner part (6) and the cavity communicating holes (10).
5. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 4, wherein a rack (11) is arranged at the top of the multi-azimuth synchronous hot runner aligning sliding cylinder (7), a rack driving wheel (12) is arranged in the injection molding aligning plate (2), and the rack driving wheel (12) is meshed with the rack (11).
6. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 5, wherein the side hot runner part (6) comprises a plurality of tube wall side hot runners (13) arranged in the needle valve injection molding tube (3), and the alignment runner hole (9) is located between the tube wall side hot runners (13) and the cavity communicating hole (10).
7. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 6, wherein the injection molding pipe positioning part (4) comprises a needle valve pipe positioning seat (133) arranged at the bottom of the injection molding module body (1), the needle valve pipe positioning seat (133) is in butt fit with the needle valve injection molding pipe (3), a bottom injection molding groove is formed in the needle valve pipe positioning seat (133), the bottom injection molding groove is connected with the needle valve injection molding pipe (3), a connecting channel is formed at the bottom of the injection molding module body (1), and the connecting channel is connected with the bottom injection molding groove.
8. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 7, wherein a slide cylinder protection supporting block (14) is arranged in the needle valve tube positioning seat (133), the slide cylinder protection supporting block (14) is connected with the needle valve tube positioning seat (133) through a spring (15), and the slide cylinder protection supporting block (14) is located right below the multi-azimuth synchronous hot runner alignment slide cylinder (7).
9. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 8, wherein two flow channel bottom baffles (16) capable of performing reciprocating linear motion in the horizontal direction are arranged in the needle valve tube positioning seat (133), the flow channel bottom baffles (16) correspond to the bottom injection molding groove in position, a linear driver (17) is arranged on the needle valve tube positioning seat (133), and a power shaft of the linear driver (17) is connected with the flow channel bottom baffles (16).
10. The needle valve type multi-material multi-azimuth injection molding hot runner structure according to claim 1, wherein a shunting injection molding channel (18) is arranged in the injection molding counterpoint plate (2), a pressurizing mold (19) capable of reciprocating linearly along a vertical direction is arranged on the injection molding module body (1), and the pressurizing mold (19) corresponds to the needle valve injection molding pipe (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111671003.4A CN115284549A (en) | 2021-12-31 | 2021-12-31 | Needle valve type multi-material multi-azimuth injection molding hot runner structure |
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| CN202111671003.4A CN115284549A (en) | 2021-12-31 | 2021-12-31 | Needle valve type multi-material multi-azimuth injection molding hot runner structure |
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| CN111853342A (en) * | 2020-07-24 | 2020-10-30 | 浙江大学 | Valve core assembly with variable flow characteristic, regulating valve and regulating method of regulating valve |
| CN113665065A (en) * | 2021-09-09 | 2021-11-19 | 常州信息职业技术学院 | Large-scale plastic inspection well chamber storage type hot runner injection molding device |
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- 2021-12-31 CN CN202111671003.4A patent/CN115284549A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002066224A1 (en) * | 2001-02-20 | 2002-08-29 | Conix Corporation | Valve-pin position monitoring system |
| RU2338941C1 (en) * | 2007-03-01 | 2008-11-20 | Открытое акционерное общество "НПО "Промавтоматика" | Shutoff-and-control valve |
| CN106352101A (en) * | 2016-08-25 | 2017-01-25 | 德阳市迪信佳阀门制造有限公司 | Rotation type valve |
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