CN109049544B - Laminated injection molding system and injection molding method thereof - Google Patents
Laminated injection molding system and injection molding method thereof Download PDFInfo
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- CN109049544B CN109049544B CN201811132170.XA CN201811132170A CN109049544B CN 109049544 B CN109049544 B CN 109049544B CN 201811132170 A CN201811132170 A CN 201811132170A CN 109049544 B CN109049544 B CN 109049544B
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- die
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 62
- 238000002347 injection Methods 0.000 claims description 48
- 239000007924 injection Substances 0.000 claims description 48
- 238000000465 moulding Methods 0.000 claims description 39
- 239000002994 raw material Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 238000002791 soaking Methods 0.000 claims description 6
- 239000012778 molding material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
-
- 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
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
-
- 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
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
- B29C2045/2709—Gates with a plurality of mould cavity inlets in close proximity
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a laminated injection molding system and an injection molding method thereof.
Description
Technical Field
The present invention relates to an injection molding system and an injection molding method thereof, and more particularly, to a mold system and an injection molding method thereof capable of greatly improving injection efficiency by arranging injection molds in a stacked manner.
Background
Injection molds are well known as tools for producing plastic articles that are capable of imparting a complete structure and precise dimensions to the plastic article. Injection molding is a process used in mass production of parts of complex shape. The method specifically refers to injecting heated and melted plastic into a die cavity under high pressure by an injection molding machine, and obtaining a formed product after cooling and solidifying.
The design of the mold is the most central technology in the injection molding production, and the structure of the mold is uniform although it may vary widely depending on the variety and performance of the plastic, the shape and structure of the plastic product, the type of the injection machine, and the like. The mould mainly comprises a pouring system, a temperature regulating system, a forming part and a structural part. The casting system and the formed parts are parts which are in direct contact with the plastic and change with the plastic and the product, are the most complex parts in the mould, have the greatest change and require the highest processing finish and precision.
In general, an injection mold is composed of two parts, a movable mold mounted on a movable mold plate of an injection molding machine and a fixed mold mounted on a fixed mold plate of the injection molding machine. The movable mould and the fixed mould are closed to form a pouring system and a cavity during injection molding, and the movable mould and the fixed mould are separated during mould opening so as to take out plastic products. In order to reduce the heavy design and manufacturing effort of the mold, standard mold frames are mostly used for injection molding.
However, for the conventional injection mold, a set of pouring systems generally only corresponds to a set of cavities, when a workpiece needs to be mass-produced, a plurality of molds need to be purchased at the same time, and each mold is independent of the other, so that the overall integration level is not high, the mold cost is high, and the production efficiency is low, which is a main disadvantage of the conventional technology.
Disclosure of Invention
The technical scheme adopted by the invention is as follows: a laminated injection molding system comprises an integrated runner system and a collective injection molding die system, wherein injection molding raw materials enter the collective injection molding die system through the integrated runner system so as to complete the injection molding action of a workpiece.
The integrated injection mold system comprises a plurality of injection mold groups, each injection mold group comprises an upper mold unit and a lower mold unit, and the upper mold unit and the lower mold unit in one injection mold group are overlapped up and down to form the injection mold group.
The upper die unit and the lower die unit comprise a die blank plate and a forming die body, a plurality of fixing cavities are formed in the die blank plate, the forming die body is arranged in one fixing cavity, the opening of the fixing cavity of the upper die unit is upward, and the opening of the fixing cavity of the lower die unit is downward.
The molding die body comprises a fixed die core and an opening and closing die core, wherein the fixed die core is fixedly arranged in the fixed cavity, the opening and closing die core is covered on the fixed cavity, a molding cavity is formed between the fixed die core and the opening and closing die core, the opening and closing die core of the molding die body of the upper die unit can move to the upper side of the upper die unit to perform the die opening action, and the opening and closing die core of the molding die body of the lower die unit can move to the lower side of the lower die unit to perform the die opening action.
The fixed mould core is internally provided with a mould core runner which is communicated with the forming cavity, the mould blank plate is internally provided with a blank plate runner which is simultaneously communicated with a plurality of the fixing cavities, and when a forming mould body is arranged in one fixing cavity, the mould core runner of the forming mould body is communicated between the blank plate runner and the forming cavity.
The integrated runner system comprises an introducing runner pipe, a connecting runner pipe, a plurality of branch runner pipes and a runner collecting plate, wherein the connecting runner pipe and the branch runner pipes are simultaneously connected to the runner collecting plate.
The guide-in runner pipe is internally provided with a guide-in runner, the connection runner pipe and the plurality of branch runner pipes are respectively provided with runners, the runner collecting plate is internally provided with a collecting runner, the connection runner pipe and the runners of the plurality of branch runner pipes are simultaneously communicated with the collecting runner, the guide-in runner pipe is connected with the connection runner pipe, and the guide-in runner is communicated with the runners of the connection runner pipe.
The runner collecting plate is arranged between the upper die unit and the lower die unit, and a plurality of branch runner pipes are respectively and correspondingly inserted into the blank runner of the upper die unit and the lower die unit.
The liquid injection molding raw material flows into the connecting runner pipe through the introducing runner pipe, then enters the collecting runner of the runner collecting plate, and finally flows into the forming cavity of each forming die body through a plurality of branch runner pipes for forming.
A laminated injection molding method is characterized in that injection molding raw materials are injected into a collective injection mold system through an integrated runner system to complete the injection molding action of a workpiece.
The integrated injection mold system comprises a plurality of injection mold groups, each injection mold group comprises an upper mold unit and a lower mold unit, the upper mold unit and the lower mold unit in one injection mold group are vertically stacked to form the injection mold group, the upper mold unit and the lower mold unit comprise a mold blank plate and a molding mold body, a plurality of fixed cavities are formed in the mold blank plate, the molding mold body is arranged in one fixed cavity, the fixed cavity of the upper mold unit is opened upwards, and the fixed cavity of the lower mold unit is opened downwards.
The molding die body comprises a fixed die core and an opening and closing die core, wherein the fixed die core is fixedly arranged in the fixed cavity, the opening and closing die core is covered on the fixed cavity, meanwhile, a molding cavity is formed between the fixed die core and the opening and closing die core, a die core runner is arranged in the fixed die core and communicated with the molding cavity, a blank runner is arranged in the blank plate, and the blank runner is simultaneously communicated with a plurality of the fixed cavities.
The integrated runner system comprises an introducing runner pipe, a connecting runner pipe, a plurality of branch runner pipes and a runner collecting plate, wherein the connecting runner pipe and the plurality of branch runner pipes are simultaneously connected to the runner collecting plate, an introducing runner is arranged in the introducing runner pipe, runners are respectively arranged in the connecting runner pipe and the plurality of branch runner pipes, a collecting runner is arranged in the runner collecting plate, the runners of the connecting runner pipe and the plurality of branch runner pipes are simultaneously communicated with the collecting runner, the introducing runner pipe is connected with the connecting runner pipe, and the introducing runner is communicated with the runners of the connecting runner pipe.
The runner collecting plate is arranged between the upper die unit and the lower die unit, a plurality of branch runner pipes are respectively and correspondingly inserted into the blank runner of the upper die unit and the lower die unit, liquid injection molding raw materials flow into the connecting runner pipe through the introducing runner pipe, then enter the collecting runner of the runner collecting plate, and finally flow into the forming cavity of each forming die body for forming through the plurality of branch runner pipes.
The beneficial effects of the invention are as follows: according to the invention, the upper die unit and the lower die unit are vertically overlapped to form the structural design of the injection die set, so that the two die units can be integrated into a whole, and the production efficiency of products is greatly improved. And simultaneously, the upper die unit is utilized to upwards perform the die opening action, the lower die unit is downwards perform the die opening action, and the die opening actions of the upper die unit and the lower die unit are independent and do not influence each other in a mode of independently performing the die opening action respectively, so that the die failure rate is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic perspective exploded view of the present invention.
Fig. 3 is a schematic structural diagram of the integrated injection mold system of the present invention.
Fig. 4 is a schematic cross-sectional view of an injection mold set according to the present invention.
FIG. 5 is a schematic diagram of an integrated flow channel system according to the present invention.
FIG. 6 is a schematic cross-sectional view of an inlet flow channel tube and a docking flow channel tube according to the present invention.
FIG. 7 is a schematic cross-sectional view of a branching flow channel tube according to the present invention.
FIG. 8 is a schematic cross-sectional view of a shut-off type hot nozzle according to the present invention.
Fig. 9 is a schematic cross-sectional structure of the present invention.
Detailed Description
As shown in fig. 1-9, a stack injection molding system includes an integrated runner system 100 and a manifold injection mold system 200.
In operation, injection molding material is introduced into the integrated runner system 100 through the collective injection mold system 200 to complete injection molding of a workpiece.
The collective injection mold system 200 includes a number of injection mold sets 210.
Each of the injection mold sets 210 includes an upper mold unit 220 and a lower mold unit 230.
The upper mold unit 220 and the lower mold unit 230 of the injection mold set 210 are stacked one above the other to form the injection mold set 210.
The upper mold unit 220 and the lower mold unit 230 each include a blank plate 240 and a mold body 250.
The blank plate 240 has a plurality of fixing cavities 241, and the molding body 250 is disposed in one of the fixing cavities 241.
The fixing cavity 241 of the upper mold unit 220 is opened upward, and the fixing cavity 241 of the lower mold unit 230 is opened downward.
The molding die body 250 includes a fixed die core 251 and an open die core 252, wherein the fixed die core 251 is fixedly disposed in the fixed cavity 241, the open die core 252 is covered on the fixed cavity 241, and a molding cavity 253 is formed between the fixed die core 251 and the open die core 252.
The opening/closing mold core 252 of the molding mold 250 of the upper mold unit 220 can move upward of the upper mold unit 220 to perform a mold opening operation.
The opening/closing mold core 252 of the molding mold 250 of the lower mold unit 230 can move downward of the lower mold unit 230 to perform a mold opening operation.
The structural design of the injection mold set 210 formed by stacking the upper mold unit 220 and the lower mold unit 230 up and down can integrate the two mold units, and simultaneously, the upper mold unit 220 is utilized to perform upward mold opening, the lower mold unit 230 performs downward mold opening, and the mold opening actions of the upper mold unit 220 and the lower mold unit 230 are independent from each other in a mode of respectively and independently performing mold opening, so that the mold failure rate is reduced.
In practice, the mold core 251 is provided with a mold core runner 254, and the mold core runner 254 is in communication with the molding cavity 253.
The blank flow channels 255 are provided in the blank 240, and the blank flow channels 255 are simultaneously connected to the plurality of fixing chambers 241.
When a mold body 250 is disposed in a fixed cavity 241, the mold insert flow channel 254 of the mold body 250 is in communication between the blank flow channel 255 and its mold cavity 253.
In practice, the operator can set a plurality of molding dies 250 in a plurality of the fixing cavities 241 in a one-to-one correspondence to double the injection quantity of the upper mold unit 220 and the lower mold unit 230.
In practice, each of the fixing chambers 241 is provided therein with a fixing hole in which a fixing screw is provided, which fixes the fixing core 251 in the fixing chamber 241.
The integrated flow channel system 100 includes an inlet flow channel tube 110, a docking flow channel tube 120, a plurality of branching flow channel tubes 130, and a flow channel manifold 140.
The connecting flow channel pipe 120 and the plurality of branch flow channel pipes 130 are simultaneously connected to the flow channel collecting plate 140.
The introducing flow channel tube 110 is provided with an introducing flow channel, the connecting flow channel tube 120 and the plurality of branch flow channel tubes 130 are respectively provided with flow channels, the flow channel collecting plate 140 is provided with an assembling flow channel, the flow channels of the connecting flow channel tube 120 and the plurality of branch flow channel tubes 130 are simultaneously communicated with the assembling flow channel, the introducing flow channel tube 110 is connected with the connecting flow channel tube 120, and the introducing flow channel is communicated with the flow channel of the connecting flow channel tube 120.
The runner manifold 140 is disposed between the upper die unit 220 and the lower die unit 230.
The plurality of branch runner pipes 130 are respectively inserted into the blank runners 255 of the upper mold unit 220 and the lower mold unit 230.
In operation, the liquid injection molding material flows into the connecting runner tube 120 through the introducing runner tube 110, then into the collecting runner of the runner collecting plate 140, and finally flows into the molding cavity 253 of each molding die 250 through the plurality of branch runner tubes 130 for molding.
In particular embodiments, the integrated flow channel system 100 further includes a flow channel plate 150, the flow channel plate 140 being disposed within the flow channel plate 150, the spatial location of the flow channel plate 140 being fixed by the flow channel plate 150.
The inlet flow channel 110, the connecting flow channel 120 and the plurality of branch flow channel 130 have the same structure, and all of them are shut-off type hot nozzle 300.
The shut-off type hot nozzle 300 comprises an injection molding tube 310, a shut-off needle 320 and an action cylinder 330, wherein the shut-off needle 320 is inserted into the injection molding tube 310, the action cylinder 330 is arranged at the tail end of the shut-off type hot nozzle 300, the action cylinder 330 is connected with the shut-off needle 320, and the action cylinder 330 drives the shut-off needle 320 to reciprocate in the injection molding tube 310.
The injection molding tube 310 comprises a tube body 311 and a nozzle 312, the nozzle 312 is connected to the front end of the tube body 311, the tube body 311 has a tube cavity 341, the nozzle 312 has a nozzle cavity 342, the tube cavity 341 is communicated with the nozzle cavity 342, and the shut-off needle 320 is simultaneously inserted into the tube cavity 341 and the nozzle cavity 342.
When the shut-off needle 320 is pulled back by the actuating cylinder 330, the shut-off needle 320 is withdrawn from the nozzle chamber 342, and at this point, the liquid injection molding material can flow out through the tube chamber 341 and the nozzle chamber 342 to perform an injection molding operation.
When the cylinder 330 drives the shut-off needle 320 to push forward, the shut-off needle 320 pushes into the nozzle chamber 342, and at this point, the shut-off type hot nozzle 300 is closed to complete the shut-off operation.
An outer flow passage is provided on the outer end surface of the nozzle 312, which communicates with the nozzle chamber 342.
In practice, the cross-sectional area of the shut-off needle 320 increases gradually from the cylinder 330 toward the nozzle 312, so that the cavity 341 decreases gradually from the cylinder 330 toward the nozzle 312, thereby increasing the flow rate of the liquid injection molding material in the cavity 341.
The shut-off needle 320 has an overall elongated conical shape.
In practice, the cut-off pin 320 is provided with a soaking wire 344 therethrough, and the soaking wire 344 extends from one end of the cut-off pin 320 to the other end thereof.
The soaking wire 344 can raise the thermal conductivity of the shut-off pin 320, thereby balancing the temperature of each portion of the tube cavity 341.
In particular implementations, the soaking wire 344 is made of silver wire.
In particular, the actuating cylinder 330 may be a cylinder, a hydraulic cylinder, or the like.
The present invention can control the opening states of the introducing runner, the runner and the collecting runner by the structural design of the intercepting type hot nozzle 300, and control the injection molding raw materials into the specific molding cavity 253.
As shown in fig. 1-9, in a stack injection molding method, injection molding material is injected into a manifold injection mold system 200 through an integrated runner system 100 to complete injection molding of a workpiece.
The integrated injection mold system 200 includes a plurality of injection mold sets 210, each injection mold set 210 includes an upper mold unit 220 and a lower mold unit 230, the upper mold unit 220 and the lower mold unit 230 in one injection mold set 210 are stacked up and down to form the injection mold set 210, each of the upper mold unit 220 and the lower mold unit 230 includes a blank plate 240 and a molding mold 250, a plurality of fixing cavities 241 are formed on the blank plate 240, and the molding mold 250 is disposed in one of the fixing cavities 241.
The fixing cavity 241 of the upper mold unit 220 is opened upward, and the fixing cavity 241 of the lower mold unit 230 is opened downward.
The molding die body 250 includes a fixed die core 251 and an open die core 252, wherein the fixed die core 251 is fixedly disposed in the fixed cavity 241, the open die core 252 is covered on the fixed cavity 241, and a molding cavity 253 is formed between the fixed die core 251 and the open die core 252.
The fixed mold core 251 is provided with a mold core runner 254, the mold core runner 254 is communicated with the forming cavity 253, the mold blank 240 is provided with a blank runner 255, and the blank runner 255 is simultaneously communicated with a plurality of the fixed cavities 241.
The integrated runner system 100 includes an introducing runner pipe 110, a connecting runner pipe 120, a plurality of branch runner pipes 130 and a runner collecting plate 140, the connecting runner pipe 120 and the plurality of branch runner pipes 130 are simultaneously connected to the runner collecting plate 140, an introducing runner is arranged in the introducing runner pipe 110, runners are respectively arranged in the connecting runner pipe 120 and the plurality of branch runner pipes 130, a collecting runner is arranged in the runner collecting plate 140, the runners of the connecting runner pipe 120 and the plurality of branch runner pipes 130 are simultaneously communicated with the collecting runner, the introducing runner pipe 110 is connected with the connecting runner pipe 120, and the introducing runner is communicated with the runner of the connecting runner pipe 120.
The runner manifold 140 is disposed between the upper mold unit 220 and the lower mold unit 230, and the plurality of branch runner pipes 130 are respectively inserted into the blank runners 255 of the upper mold unit 220 and the lower mold unit 230, and the liquid injection molding material flows into the connecting runner pipe 120 through the introducing runner pipe 110, then enters the collecting runner of the runner manifold 140, and finally flows into the molding cavity 253 of each molding die body 250 through the plurality of branch runner pipes 130 for molding.
Claims (2)
1. A laminated injection molding system, characterized by: comprises an integrated runner system and a collective injection mold system, wherein injection molding raw materials enter the collective injection mold system through the integrated runner system to complete the injection molding action of a workpiece,
the integrated injection mold system comprises a plurality of injection mold groups, each injection mold group comprises an upper mold unit and a lower mold unit, the upper mold unit and the lower mold unit in one injection mold group are overlapped up and down to form the injection mold group,
the upper die unit and the lower die unit both comprise a die blank plate and a forming die body, a plurality of fixing cavities are arranged on the die blank plate, the forming die body is arranged in one fixing cavity, the opening of the fixing cavity of the upper die unit is upward, the opening of the fixing cavity of the lower die unit is downward,
the molding die body comprises a fixed die core and an opening and closing die core, wherein the fixed die core is fixedly arranged in the fixed cavity, the opening and closing die core is covered on the fixed cavity, a molding cavity is formed between the fixed die core and the opening and closing die core, the opening and closing die core of the molding die body of the upper die unit can move to the upper side of the upper die unit to perform the die opening action, the opening and closing die core of the molding die body of the lower die unit can move to the lower side of the lower die unit to perform the die opening action,
the fixed mould core is internally provided with a mould core runner which is communicated with the forming cavity, the mould blank plate is internally provided with a blank plate runner which is simultaneously communicated with a plurality of the fixed cavities, when a forming mould body is arranged in one fixed cavity, the mould core runner of the forming mould body is communicated between the blank plate runner and the forming cavity thereof,
the integrated runner system comprises an introducing runner pipe, a connecting runner pipe, a plurality of branch runner pipes and a runner collecting plate, wherein the connecting runner pipe and the branch runner pipes are simultaneously connected to the runner collecting plate,
an introducing flow passage is arranged in the introducing flow passage pipe, flow passages are respectively arranged in the connecting flow passage pipe and the plurality of branch flow passage pipes, a collecting flow passage is arranged in the flow passage collecting plate, the flow passages of the connecting flow passage pipe and the plurality of branch flow passage pipes are simultaneously communicated with the collecting flow passage, the introducing flow passage pipe is connected with the connecting flow passage pipe, the introducing flow passage is communicated with the flow passages of the connecting flow passage pipe,
the runner collecting plate is arranged between the upper die unit and the lower die unit, a plurality of branch runner pipes are respectively and correspondingly inserted into the runners of the blank plates of the upper die unit and the lower die unit,
the liquid injection molding raw material flows into the connecting runner pipe through the introducing runner pipe, then enters the collecting runner of the runner collecting plate, finally flows into the molding cavity of each molding die body through a plurality of branch runner pipes for molding,
the introducing flow channel pipe, the connecting flow channel pipe and the plurality of branch flow channel pipes have the same structure, all the three are cut-off type hot nozzle pipes,
the cut-off type hot nozzle pipe comprises an injection molding pipe, a cut-off needle and an action cylinder, wherein the cut-off needle is inserted into the injection molding pipe, the action cylinder is arranged at the tail end of the cut-off type hot nozzle pipe and is connected with the cut-off needle, the action cylinder drives the cut-off needle to reciprocate in the injection molding pipe,
the injection molding pipe comprises a pipe body and a nozzle, the nozzle is connected at the front end of the pipe body, the pipe body is provided with a pipe cavity, the nozzle is provided with a nozzle cavity, the pipe cavity is communicated with the nozzle cavity, the shutoff needle is simultaneously penetrated in the pipe cavity and the nozzle cavity, when the shutoff needle is driven to pull back by the action cylinder, the shutoff needle is pulled out from the nozzle cavity, at the moment, liquid injection molding raw materials can flow out through the pipe cavity and the nozzle cavity to perform injection molding action, when the action cylinder drives the front top of the shutoff needle, the shutoff needle is pushed into the nozzle cavity, at the moment, the shutoff hot nozzle pipe is closed to complete the shutoff action, an outer flow passage is arranged on the outer end face of the nozzle, the outer flow passage is communicated with the nozzle cavity,
a soaking wire is penetrated in the intercepting needle, extends from one end of the intercepting needle to the other section of the intercepting needle,
the integrated runner system further comprises a runner plate, the runner plate is arranged in the runner plate, the space position of the runner plate is fixed through the runner plate, the cross section area of the shutoff needle is gradually increased from the action cylinder to the nozzle, and accordingly the cavity of the pipe body is gradually reduced from the action cylinder to the nozzle.
2. A laminated injection molding method, characterized in that: injecting injection molding raw materials into a collective injection mold system through an integrated runner system to complete the injection molding action of a workpiece,
wherein the integrated injection mold system comprises a plurality of injection mold groups, each injection mold group comprises an upper mold unit and a lower mold unit, the upper mold unit and the lower mold unit in one injection mold group are vertically overlapped to form the injection mold group, the upper mold unit and the lower mold unit comprise a mold blank plate and a molding mold body, a plurality of fixed cavities are arranged on the mold blank plate, the molding mold body is arranged in one fixed cavity, the fixed cavity of the upper mold unit is upward, the fixed cavity of the lower mold unit is downward,
the molding die body comprises a fixed die core and an opening and closing die core, wherein the fixed die core is fixedly arranged in the fixed cavity, the opening and closing die core is covered on the fixed cavity, meanwhile, a molding cavity is formed between the fixed die core and the opening and closing die core, a die core runner is arranged in the fixed die core and communicated with the molding cavity, a blank runner is arranged in the blank plate, the blank runner is simultaneously communicated with a plurality of the fixed cavities,
the integrated runner system comprises an introducing runner pipe, a connecting runner pipe, a plurality of branch runner pipes and a runner collecting plate, wherein the connecting runner pipe and the plurality of branch runner pipes are simultaneously connected to the runner collecting plate, an introducing runner is arranged in the introducing runner pipe, runners are respectively arranged in the connecting runner pipe and the plurality of branch runner pipes, a collecting runner is arranged in the runner collecting plate, the runners of the connecting runner pipe and the plurality of branch runner pipes are simultaneously communicated with the collecting runner, the introducing runner pipe is connected with the connecting runner pipe, the introducing runner is communicated with the runner of the connecting runner pipe,
the runner collecting plate is arranged between the upper die unit and the lower die unit, a plurality of branch runner pipes are respectively and correspondingly inserted into the blank runners of the upper die unit and the lower die unit, liquid injection molding raw materials flow into the connecting runner pipes through the introducing runner pipes, then enter the collecting runner of the runner collecting plate, finally flow into the forming cavity of each forming die body through a plurality of branch runner pipes for forming,
the introducing flow channel pipe, the connecting flow channel pipe and the plurality of branch flow channel pipes have the same structure, all the three are cut-off type hot nozzle pipes,
the cut-off type hot nozzle pipe comprises an injection molding pipe, a cut-off needle and an action cylinder, wherein the cut-off needle is inserted into the injection molding pipe, the action cylinder is arranged at the tail end of the cut-off type hot nozzle pipe and is connected with the cut-off needle, the action cylinder drives the cut-off needle to reciprocate in the injection molding pipe,
the injection molding pipe comprises a pipe body and a nozzle, the nozzle is connected at the front end of the pipe body, the pipe body is provided with a pipe cavity, the nozzle is provided with a nozzle cavity, the pipe cavity is communicated with the nozzle cavity, the shutoff needle is simultaneously penetrated in the pipe cavity and the nozzle cavity, when the shutoff needle is driven to pull back by the action cylinder, the shutoff needle is pulled out from the nozzle cavity, at the moment, liquid injection molding raw materials can flow out through the pipe cavity and the nozzle cavity to perform injection molding action, when the action cylinder drives the front top of the shutoff needle, the shutoff needle is pushed into the nozzle cavity, at the moment, the shutoff hot nozzle pipe is closed to complete the shutoff action, an outer flow passage is arranged on the outer end face of the nozzle, the outer flow passage is communicated with the nozzle cavity,
a soaking wire is penetrated in the intercepting needle, extends from one end of the intercepting needle to the other section of the intercepting needle,
the integrated runner system further comprises a runner plate, the runner plate is arranged in the runner plate, the space position of the runner plate is fixed through the runner plate, the cross section area of the shutoff needle is gradually increased from the action cylinder to the nozzle, and accordingly the cavity of the pipe body is gradually reduced from the action cylinder to the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132170.XA CN109049544B (en) | 2018-09-27 | 2018-09-27 | Laminated injection molding system and injection molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132170.XA CN109049544B (en) | 2018-09-27 | 2018-09-27 | Laminated injection molding system and injection molding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109049544A CN109049544A (en) | 2018-12-21 |
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| CN2848540Y (en) * | 2005-11-08 | 2006-12-20 | 佛山市顺德区汉达精密电子科技有限公司 | Hot gate runner system in overlapped mould |
| CN102152445A (en) * | 2011-03-04 | 2011-08-17 | 慈溪市盛艺模具有限公司 | Longitudinal double-layer injection molding mold and using method thereof |
| CN204869480U (en) * | 2015-07-13 | 2015-12-16 | 广东伟达塑机工业有限公司 | Stromatolite mould |
| CN204869496U (en) * | 2015-07-17 | 2015-12-16 | 深圳市宝鸿精密模具有限公司 | Novel stromatolite mould structure |
| CN206796397U (en) * | 2016-10-28 | 2017-12-26 | 深圳市福峰模具制造有限公司 | Laminated mould |
| CN207696915U (en) * | 2017-11-15 | 2018-08-07 | 太仓市意欣塑胶有限公司 | A kind of modular full-automatic injection mold |
| CN208978183U (en) * | 2018-09-27 | 2019-06-14 | 凯莱模具（深圳）有限公司 | A kind of laminated type adapted to injection system |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2848540Y (en) * | 2005-11-08 | 2006-12-20 | 佛山市顺德区汉达精密电子科技有限公司 | Hot gate runner system in overlapped mould |
| CN102152445A (en) * | 2011-03-04 | 2011-08-17 | 慈溪市盛艺模具有限公司 | Longitudinal double-layer injection molding mold and using method thereof |
| CN204869480U (en) * | 2015-07-13 | 2015-12-16 | 广东伟达塑机工业有限公司 | Stromatolite mould |
| CN204869496U (en) * | 2015-07-17 | 2015-12-16 | 深圳市宝鸿精密模具有限公司 | Novel stromatolite mould structure |
| CN206796397U (en) * | 2016-10-28 | 2017-12-26 | 深圳市福峰模具制造有限公司 | Laminated mould |
| CN207696915U (en) * | 2017-11-15 | 2018-08-07 | 太仓市意欣塑胶有限公司 | A kind of modular full-automatic injection mold |
| CN208978183U (en) * | 2018-09-27 | 2019-06-14 | 凯莱模具（深圳）有限公司 | A kind of laminated type adapted to injection system |
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| CN109049544A (en) | 2018-12-21 |
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