CN218857583U - Multi-runner forming die - Google Patents
Multi-runner forming die Download PDFInfo
- Publication number
- CN218857583U CN218857583U CN202223233390.6U CN202223233390U CN218857583U CN 218857583 U CN218857583 U CN 218857583U CN 202223233390 U CN202223233390 U CN 202223233390U CN 218857583 U CN218857583 U CN 218857583U
- Authority
- CN
- China
- Prior art keywords
- die
- runner
- stage branch
- branch flow
- template
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims description 36
- 238000009826 distribution Methods 0.000 claims description 20
- 238000000465 moulding Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 abstract description 14
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 19
- 239000012778 molding material Substances 0.000 description 9
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000012768 molten material Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a multi-runner forming die, which comprises a first die body, a second die body and a runner assembly, wherein the first die body comprises a first die holder and a first template, a sprue bush is arranged on the first die holder, and the first template is arranged on one side of the first die holder; the second die body comprises a second die holder and a second template, the second template is arranged on one side of the second die holder, and a die cavity is formed after the second template and the first template are assembled; the split-flow type hot runner mold comprises a split-flow plate, a hot nozzle and a heating element, wherein a plurality of split-flow channels are arranged in the split-flow plate, each split-flow channel comprises a first-stage branch flow channel and a second-stage branch flow channel, the first-stage branch flow channel and the second-stage branch flow channel are injected into the same cavity, the first-stage branch flow channel is communicated with one turning end of the cavity, the second-stage branch flow channel is communicated with the other turning end of the cavity, the hot nozzle is arranged on one side of the split-flow plate and is respectively communicated with the first-stage branch flow channel and the second-stage branch flow channel, and the heating element is embedded in the split-flow plate; the utility model discloses can balance the material flow who gets into each runner, and avoid the melting material to cool off in advance.
Description
Technical Field
The utility model belongs to the injection mold field, in particular to multithread way forming die.
Background
The injection mold is one of the most important devices in the manufacturing process of plastic products, molten injection molding materials are injected into the mold, and after the materials are cooled and molded, the mold body can obtain the plastic products. Multiple runners are designed in a multi-cavity mold, inevitably, when injection molding materials enter different runners, the flow rate and temperature of the materials entering each runner are difficult to be accurately controlled, which may make the quality of plastic products difficult to obtain consistency, thereby affecting the quality of the products.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome not enough above, the utility model aims at providing a multi-runner forming die, its simple structure, reasonable in design, easy to produce can balance the material flow who gets into each runner, and avoids the melting material to cool off in advance, has solved the problem that multi-cavity die injection molding product quality differs.
The technical scheme is as follows: a multi-runner forming die comprises a first die body, a second die body and a runner assembly, wherein the first die body comprises a first die holder and a first template, a sprue bush is arranged on the first die holder, and the first template is arranged on one side of the first die holder; the second die body comprises a second die holder and a second template, the second template is arranged on one side of the second die holder, and a cavity is formed after the second template and the first template are assembled; the runner assembly is arranged in the first die body and comprises a splitter plate, a hot nozzle and a heating element, a plurality of splitter channels are arranged in the splitter plate and comprise a first-stage branch channel and a second-stage branch channel, the first-stage branch channel and the second-stage branch channel are injected into the same die cavity, the first-stage branch channel is communicated with one turning end of the die cavity, the second-stage branch channel is communicated with the other turning end of the die cavity, the hot nozzle is arranged on one side of the splitter plate and is respectively communicated with the first-stage branch channel and the second-stage branch channel, and the heating element is embedded in the splitter plate; a part of injection molding material flows out of the first-stage branch flow channel and enters the second-stage branch flow channel by arranging the first-stage branch flow channel and the second-stage branch flow channel, the part of injection molding material is shunted again and enters the cavity, the first-stage branch flow channel and the second-stage branch flow channel are injected into the same cavity, and the material flow entering each cavity can be balanced by the design of the multi-stage branch flow channels; through the embedded heating member of establishing at the flow distribution plate, can avoid the material of moulding plastics in the multistage sprue to cool off in advance, and then improve product quality.
Preferably, a first mounting groove and a second mounting groove are formed in two sides of the flow distribution plate, the heating element comprises a first heating pipe and a second heating pipe, the first heating pipe is embedded in the first mounting groove, and the second heating pipe is embedded in the second mounting groove; the first heating pipe and the second heating pipe are arranged on the two sides of the flow distribution plate, so that the temperature of the injection molding materials in the first-stage branch flow channel and the second-stage branch flow channel can be maintained at the same time, and the temperature of the injection molding materials entering the cavity from the branch flow channels at all stages is ensured to be consistent.
Preferably, the first heating pipe is arranged on one side close to the first-stage branch flow passage and covers the first-stage branch flow passage, and the second heating pipe is arranged on one side close to the second-stage branch flow passage and at least covers the second-stage branch flow passage.
Preferably, the second heating pipe is arranged between the first-stage branch flow passage and the second-stage branch flow passage and covers the first-stage branch flow passage and the second-stage branch flow passage.
Preferably, the end face of the shunt plate is provided with a wire outlet, and a circuit of the heating element is embedded in the wire outlet.
Preferably, the second die body is provided with a plurality of cooling holes, and cooling pipe bodies are inserted into the cooling holes; the injection molding product is rapidly cooled through the cooling holes, and the injection production efficiency can be improved.
Preferably, the cooling holes are uniformly distributed on the outer wall of the cavity; the solidification rate of the injection molding material is further accelerated through the cooling holes, and the production efficiency can be improved.
Preferably, the diameter of the cooling hole close to one end of the hot nozzle is larger than that of the cooling hole far away from one end of the hot nozzle; balancing the solidification rate of each part of the injection molding product through the cooling holes; production efficiency can be improved.
Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:
1. the utility model provides a multithread way forming die, through setting up one-level branch runner and second grade branch runner and make some injection moulding material flow out and get into second grade branch runner from one-level branch runner, this some injection moulding material can shunt again, and get into the die cavity, one-level branch runner and second grade branch runner pour into the same die cavity, can balance the material flow who gets into each die cavity through the design of multistage branch runner; through the embedded heating member of establishing at the flow distribution plate, can avoid the material of moulding plastics in the multistage sprue to cool off in advance, and then improve product quality.
2. Through the first heating pipe and the second heating pipe installed on the two sides of the flow distribution plate, the first heating pipe and the second heating pipe can simultaneously maintain the injection molding material temperature in the first-stage branch flow channel and the second-stage branch flow channel, the consistency of the injection molding material temperature entering the cavity from the branch flow channels at all stages is ensured, and the product quality is further improved.
3. Through set up a plurality of cooling holes on the second die body, cooling hole evenly distributed is in the outer wall of die cavity, and the cooling hole diameter that is close to hot mouth one end is greater than the cooling hole diameter of keeping away from hot mouth one end, insert in the cooling hole and be equipped with the cooling body, through the cooling hole balances the solidification rate of each position of injection moulding product with the cooling body, and then improves production efficiency.
Drawings
Fig. 1 is a schematic structural view of a multi-runner molding mold according to the present invention;
fig. 2 is a schematic structural diagram of a first mold body according to the present invention;
fig. 3 is a schematic structural view of the splitter plate according to the present invention;
fig. 4 is a schematic structural view of a first heating pipe according to the present invention;
fig. 5 is a schematic structural view of a second heating pipe according to the present invention;
fig. 6 is a schematic structural view of a cooling hole according to the present invention;
fig. 7 is a schematic structural view of another second heating pipe according to the present invention.
In the figure: the die comprises a first die body 1, a first die holder 11, a first die plate 12, a sprue bush 13, a cooling hole 14, a cooling pipe body 15, a second die body 2, a second die holder 21, a second die plate 22, a runner assembly 3, a flow distribution plate 31, a primary branch runner 311, a first transverse portion 3111, a first longitudinal portion 3112, a secondary branch runner 312, a second longitudinal portion 3121, a second transverse portion 3122, a third longitudinal portion 3123, a first mounting groove 313, a second mounting groove 314, a hot nozzle 32, a first heating pipe 331 and a second heating pipe 332.
Detailed Description
The invention will be further elucidated with reference to the drawings and the embodiments.
Example one
As shown in fig. 1, this embodiment provides a multi-channel molding die, which includes a first die body 1, a second die body 2, and a channel assembly 3, specifically, the first die body 1 is a fixed die body, the second die body 2 is a movable die body, the first die body 1 and the second die body 2 can be assembled, a cavity is opened at one end of the first die body 1, the channel assembly 3 is disposed in the cavity, a sprue bush 13 is disposed on the first die body 1, the sprue bush 13 is communicated with the channel assembly 3, a cavity is opened at the other end of the first die body 1, a protrusion is opened at one end of the second die body 2, the cavity and the protrusion form a cavity after the die assembly, and an ejection mechanism is disposed in the second die body 2.
Further, as shown in fig. 2, the first die body 1 includes a first die holder 11 and a first die plate 12, the sprue bush 13 is disposed on the first die holder 11, and the first die plate 12 is disposed inside the first die holder 11; the second die body 2 includes a second die holder 21 and a second die plate 22, the ejection mechanism is disposed on the inner side of the second die holder 21, and the second die plate 22 is disposed on the inner side of the second die holder 21.
Further, as shown in fig. 2, the runner assembly 3 includes a flow distribution plate 31, a hot nozzle 32 and a heating element, a plurality of flow distribution channels are formed in the flow distribution plate 31, each flow distribution channel includes a first branch flow channel 311 and a second branch flow channel 312, the first branch flow channel 311 is disposed at a side close to the first mold base 11, the second branch flow channel 312 is disposed at a side far from the first mold base 11, as shown in fig. 3, the first branch flow channel 311 includes a first transverse portion 3111 and a first longitudinal portion 3112, the first transverse portion 3111 is communicated with the main flow channel, the first longitudinal portion 3112 is communicated with the cavity, the second branch flow channel 312 includes a second longitudinal portion 3121, a second transverse portion 3122 and a third longitudinal portion 3123, the second longitudinal portion 3111 is communicated with the first transverse portion 3111, the second transverse portion 3122 is communicated with the second longitudinal portion 3121, the third longitudinal portion 3123 is communicated with the cavity, and the first branch flow channel 311 and the second branch flow channel 312 at the same side are injected into the same cavity. It should be noted that the "horizontal" and "vertical" described in this embodiment are based on the orientation shown in fig. 3.
Further, the first-stage branch flow passage 311 is communicated with one turning end of the cavity, and the second-stage branch flow passage 312 is communicated with the other turning end of the cavity. Specifically, the multi-runner forming mold provided in this embodiment is used for injection molding of a plastic cup, the cavity is designed to be in the shape of a cup body, the first-stage branch runner 311 is injected into one end of the bottom of the cup body, and the second-stage branch runner 312 is injected into the other end of the bottom of the cup body.
Further, hot nozzle 32 sets up in one side of flow distribution plate 31, and communicates with one-level branch runner 311, second grade branch runner 312 respectively, the heating member inlays to be located in flow distribution plate 31, the heating member is used for heating the material of moulding plastics in one-level branch runner 311 and the second grade branch runner 312.
Further, as shown in fig. 4 and 5, a first mounting groove 313 and a second mounting groove 314 are formed on two sides of the flow distribution plate 31, the heating element includes a first heating pipe 331 and a second heating pipe 332, the first heating pipe 331 is embedded in the first mounting groove 313, and the second heating pipe 332 is embedded in the second mounting groove 314. Specifically, the first installation groove 313 is located at a side close to the first die holder 11, the first heating pipe 331 covers the first-stage branch flow passage 311, the second installation groove 314 is located at a side far from the first die holder 11, and the second heating pipe 332 at least covers the second-stage branch flow passage 312.
Furthermore, the end surface of the flow distribution plate 31 is provided with at least two wire outlets, one of the wire outlets is communicated with the first mounting groove 313, the other wire outlet is communicated with the second mounting groove 314, and a circuit of a heating element is embedded in the wire outlet.
Further, as shown in fig. 6, a plurality of cooling holes 14 are formed in the second mold body 2, and the cooling holes 14 are uniformly distributed on the outer wall of the cavity, that is, the cooling holes 14 are uniformly distributed on the outer side of the cup wall; wherein, the diameter of the cooling hole 14 close to one end of the hot nozzle 32 is larger than that of the cooling hole 14 far away from the hot nozzle 32, namely, the diameter of the cooling hole 14 close to the cup bottom is larger than that of the cooling hole 14 far away from the cup bottom; a cooling pipe body 15 is inserted into the cooling hole 14.
The utility model provides a production method of multithread way forming die does, place the mould on supporting injection molding machine, put heating member and external power supply switch-on, the heating member preheats the branch runner, after the compound die, the injection molding machine pours into the mould with the molten material from runner cover 13, the molten material flows into the die cavity via one-level runner 311 and second grade runner 312, wherein, the molten material flows into one-level runner 311 earlier, flow into the die cavity from one-level runner 311, second grade runner 312 communicates with one-level runner 311, part molten material flows into second grade runner 312 from one-level runner 311, flow into the die cavity from second grade runner 312 again, the design of multistage runner can make the material flow that flows into the die cavity more balanced, and can improve injection molding efficiency; and (3) introducing cooling liquid into the cooling pipe body 15, opening the die after the molten material is cooled and solidified, and taking out the product.
Example two
The present embodiment is substantially the same as the first embodiment, except that the second heating pipe 332 is disposed between the first branch flow passage 311 and the second branch flow passage 312, and covers the first branch flow passage 311 and the second branch flow passage 312.
Specifically, as shown in fig. 7, the second heat pipe 332 is annularly disposed between the first longitudinal portion 3112 of the first heat pipe 331 and the third longitudinal portion 3123 of the second heat pipe 332, and the second heat pipe 332 can simultaneously heat the first longitudinal portion 3112, the third longitudinal portion 3123, and the second lateral portion 3122.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a multithread way forming die, includes first die body (1), second die body (2) and runner subassembly (3), its characterized in that:
the first die body (1) comprises a first die holder (11) and a first template (12), a sprue bush (13) is arranged on the first die holder (11), and the first template (12) is arranged on one side of the first die holder (11); the second die body (2) comprises a second die holder (21) and a second template (22), the second template (22) is arranged on one side of the second die holder (21), and a die cavity is formed after the second template (22) and the first template (12) are matched;
runner subassembly (3) set up in first die body (1), and include flow distribution plate (31), hot mouth (32) and heating member, a plurality of subchannels have been seted up in flow distribution plate (31), the subchannel includes that one-level props up runner (311) and second grade and props up runner (312), one-level props up runner (311) and second grade and props up runner (312) and pour into same die cavity, one-level props up runner (311) and a turn end intercommunication of die cavity, second grade props up runner (312) and another turn end intercommunication of die cavity, hot mouth (32) set up in one side of flow distribution plate (31), and prop up runner (311), second grade with one-level respectively and prop up runner (312) intercommunication, the heating member inlays to be located in flow distribution plate (31).
2. The multi-runner molding die of claim 1, wherein: first mounting groove (313) and second mounting groove (314) have been seted up to the both sides of flow distribution plate (31), the heating member includes first heating pipe (331) and second heating pipe (332), first heating pipe (331) inlays and locates in first mounting groove (313), second heating pipe (332) inlays and locates in second mounting groove (314).
3. The multi-runner molding die of claim 2, wherein: the first heating pipe (331) is arranged on one side close to the first-stage branch flow passage (311) and covers the first-stage branch flow passage (311), and the second heating pipe (332) is arranged on one side close to the second-stage branch flow passage (312) and at least covers the second-stage branch flow passage (312).
4. The multi-runner molding die of claim 2, wherein: the second heating pipe (332) is arranged between the first-stage branch flow passage (311) and the second-stage branch flow passage (312) and covers the first-stage branch flow passage (311) and the second-stage branch flow passage (312).
5. The multi-runner molding die of claim 1, wherein: an outlet is formed in the end face of the flow distribution plate (31), and a circuit of a heating element is buried in the outlet.
6. The multi-runner molding die of claim 1, wherein: a plurality of cooling holes (14) are formed in the second die body (2), and cooling pipe bodies (15) are inserted into the cooling holes (14).
7. The multi-runner molding die of claim 6, wherein: the cooling holes (14) are uniformly distributed on the outer wall of the cavity.
8. The multi-runner molding die of claim 6, wherein: the diameter of the cooling hole (14) near one end of the hot nozzle (32) is larger than that of the cooling hole (14) far away from one end of the hot nozzle (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223233390.6U CN218857583U (en) | 2022-11-23 | 2022-11-23 | Multi-runner forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223233390.6U CN218857583U (en) | 2022-11-23 | 2022-11-23 | Multi-runner forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218857583U true CN218857583U (en) | 2023-04-14 |
Family
ID=87364488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223233390.6U Active CN218857583U (en) | 2022-11-23 | 2022-11-23 | Multi-runner forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218857583U (en) |
-
2022
- 2022-11-23 CN CN202223233390.6U patent/CN218857583U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212266524U (en) | Double-layer keycap injection mold | |
| CN218857583U (en) | Multi-runner forming die | |
| CN220763378U (en) | Hot runner injection molding mechanism of automobile grille | |
| CN212171185U (en) | Flow passage structure of keyboard mould | |
| CN216127653U (en) | Enter even injection mold of gluing | |
| CN212736878U (en) | Electronic organ key injection mold | |
| CN101347996A (en) | Runner structure of a multi-cavity mold | |
| CN212826587U (en) | Shoe material injection mold | |
| CN217047324U (en) | Novel hot runner for injection mold | |
| CN210791829U (en) | Automobile instrument desk injection mold with large-enclosure embedded cooling insert | |
| CN218171234U (en) | Solid cold runner injection mold | |
| CN211868494U (en) | Double-sprue injection mold | |
| CN211709930U (en) | Injection mold | |
| CN220280369U (en) | High-quality injection molding structure with uniform inflow | |
| CN222610310U (en) | Multi-cavity injection mold | |
| CN221437028U (en) | Injection molding device | |
| CN215320313U (en) | Compact hot runner system and injection mold comprising same | |
| CN219338417U (en) | Feed-in glue injection molding runner structure | |
| CN213500580U (en) | Forming die for rubber products | |
| CN220373784U (en) | Precise injection mold for stainless steel bowl plastic shell | |
| CN214726079U (en) | Hot runner multi-cavity lunch box mold | |
| CN216609862U (en) | A PVC switch box point gate hot runner mold | |
| CN215283104U (en) | Injection mold easy to demold | |
| CN211842966U (en) | Television bracket injection mold with uniform glue injection | |
| CN214820394U (en) | Novel rapid prototyping injection mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |