CN204183824U - The adiabatic heat runner of injection mould multi-cavity sprue - Google Patents
The adiabatic heat runner of injection mould multi-cavity sprue Download PDFInfo
- Publication number
- CN204183824U CN204183824U CN201420510154.0U CN201420510154U CN204183824U CN 204183824 U CN204183824 U CN 204183824U CN 201420510154 U CN201420510154 U CN 201420510154U CN 204183824 U CN204183824 U CN 204183824U
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- plate
- sprue
- runner
- compound plate
- die cavity
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Abstract
The adiabatic heat runner of injection mould multi-cavity sprue, comprise, lower compound plate, upper compound plate is established centring ring and main sprue bush, lower compound plate divides into runner plate, sprue is opened in runner plate, runner plate is divided between die cavity and runner plate and is established a point sprue bush, perforation is opened in lower compound plate, lower compound plate establishes mould pin, lower compound plate between mould pin is established, lower ejector retainner plate, on, lower ejector retainner plate pacifies thimble, injector push rod contacts with lower ejector retainner plate through perforation, mould pin is established between core and die cavity and have product, thimble contacts with product through core, it is characterized in that the diameter D of described sprue is more than 20mm, the corner of sprue inwall is excessive through circular arc, fused raw material is marked with in sprue, fused raw material and form plastics cold burden layer between upper compound plate and runner plate inwall, the wall thickness S of plastics cold burden layer is 5-7mm, plastics cold burden layer inside is plastic melt layer, plastic melt layer is communicated with a point cast gate for point sprue bush.
Description
Technical field
The utility model relates to injection mold, particularly relates to the adiabatic heat runner of injection mould multi-cavity sprue.
Background technology
The runner of injection mold has hot flow path and cold runner, hot flow path adopts the method for mould inside or external heat to be incubated, plastics are wherein made to remain molten condition, because the plastics of melting do not solidify in running gate system in injection process, do not produce waste material, realize automatic high-speed injection moulding, but the mould of hot flow path will at inner or outer setting heater, its complex structure, runner processing bothers, and improves manufacturing cost; And adopt the injection mold of cold runner, after at every turn to product injection mo(u)lding, plastics in cold runner also can with product simultaneously cooled and solidified, therefore after each product injection mo(u)lding die sinking, need the waste material in cold runner and the product together demoulding, the particularly injection mold of a multi-cavity mold, the waste material of generation is many.
Summary of the invention
The purpose of this utility model is the shortcoming existed to overcome prior art, provides a kind of structure simple, reduces manufacturing cost, produce the adiabatic heat runner of the few injection mould multi-cavity sprue of waste material.
The technical scheme of the adiabatic heat runner of the utility model injection mould multi-cavity sprue is: comprise compound plate and lower compound plate, upper compound plate is arranged centring ring and main sprue bush, under lower compound plate, runner plate is set, sprue is had in runner plate, under runner plate, die cavity is set, between die cavity and runner plate, a point sprue bush is set, perforation is had in lower compound plate, lower compound plate arranges mould pin, lower compound plate between mould pin is arranged ejector retainner plate and lower ejector retainner plate, on, lower ejector retainner plate installs thimble, injector push rod contacts with below lower ejector retainner plate through perforation, mould pin arranges core, the product of injection mo(u)lding is had between core and die cavity, thimble contacts with product through core, it is characterized in that: the diameter D of described sprue is more than 20mm, the corner of sprue inwall is excessive through circular arc, fused raw material is marked with in sprue, fused raw material and form plastics cold burden layer between upper compound plate and runner plate inwall, the wall thickness S of plastics cold burden layer is 5-7mm, plastics cold burden layer inside is plastic melt layer, plastic melt layer is communicated with a point cast gate for point sprue bush.
The utility model discloses a kind of adiabatic heat runner of injection mould multi-cavity sprue, sprue in runner plate is designed to the larger runner of a diameter, this flow diameter is more than three times of common cold runner diameter, general diameter is more than 20mm, and each corner of sprue inwall is all excessive through circular arc, when first time, fused raw material is injected sprue through main sprue bush, die cavity between die cavity and core is injected through each point of sprue bush again by sprue, when after product injection mo(u)lding cooling, the touching position of the fused raw material in sprue and sprue inwall also can partly cool, form one deck plastics cold burden layer, and due to sprue diameter larger, the sizing material of its inside still keeps molten condition, form still flowable plastic melt layer, now mould die sinking by the product ejection device of injection mo(u)lding, mould matched moulds again, continue to inject fused raw material in sprue, because plastics cold burden layer cools, and cannot flow, plastics cold burden layer is just attached on sprue wall always, play thermal insulation, insulation effect, reduce the heat loss of plastic melt layer, thus avoid plastic melt layer to cool fast, as long as injection mold maintenance work, the plastic melt that injector injection is come in flows through runner, constantly for runner provides heat, then ensure that the plastics of melting in plastic melt layer do not solidify, injection moulding can not produce waste material always, until after injection mold quits work, do not continue to inject fused raw material in sprue, plastic melt layer does not continue flowing, plastic melt layer also can solidify gradually, now form waste material in sprue, and all can form waste material relative to each injection mo(u)lding of cold runner, the waste material formed in this sprue is few, decrease waste of material, and relative to hot flow path, this sprue can keep the plastics in runner to keep molten condition without the need to heater, structure is simpler, reduce manufacture, production cost.
The adiabatic heat runner of the utility model injection mould multi-cavity sprue, the contact position between described runner plate and die cavity has lateral air gap.The described point of contact position between sprue bush and die cavity has vertical the air gap.Reduce heat loss, prevent the fused raw material in sprue from cooling fast.Described upper compound plate sidewall has the first screw hole, runner plate sidewall has the second screw hole, cavity lateral has the 3rd screw hole, core sidewall has the 4th screw hole, at upper compound plate, runner plate, die cavity and core sidewall, fixed head is set, fixed head is fixed through the second screw and runner plate, fixes through the 3rd screw and die cavity, and fixes through the first screw and upper compound plate or core.When carrying out injection moulding, fixed through the first screw hole in fixed head and upper compound plate by the first screw, fixed head and upper compound plate, runner plate and die cavity are fixed, and during die sinking action, mould can only be opened from die cavity and core; After injection mold quits work, need the waste material in runner plate to take out, then fixed through fixed head and core by the first screw, after mould die sinking, mould can only be opened from upper compound plate and runner plate, is conveniently taken out by waste material.
Accompanying drawing explanation
Fig. 1 is the adiabatic heat runner first time injection moulding matched moulds status architecture schematic diagram of injection mould multi-cavity sprue;
Fig. 2 forms plastics cold burden layer and plastic melt layer state structural representation in sprue;
Fig. 3 is the adiabatic heat runner die opening state structural representation of injection mould multi-cavity sprue;
Fig. 4 is that sprue to form after waste material injection mold from upper compound plate and runner plate open mode structural representation.
Detailed description of the invention
The utility model relates to a kind of adiabatic heat runner of injection mould multi-cavity sprue, as shown in Fig. 1-Fig. 4, comprise compound plate 1 and lower compound plate 2, upper compound plate is arranged centring ring 3 and main sprue bush 4, under lower compound plate, runner plate 5 is set, sprue 6 is had in runner plate, die cavity 7 is set under runner plate, between die cavity and runner plate, a point sprue bush 8 is set, perforation 9 is had in lower compound plate 2, lower compound plate arranges mould pin 10, lower compound plate between mould pin is arranged ejector retainner plate 11 and lower ejector retainner plate 12, on, lower ejector retainner plate installs thimble 13, injector push rod 14 contacts with below lower ejector retainner plate through perforation 9, mould pin 10 arranges core 15, the product 16 of injection mo(u)lding is had between core and die cavity 7, thimble contacts with product through core, it is characterized in that: the diameter D of described sprue 6 is more than 20mm, corner 29 place of sprue inwall is excessive through circular arc, fused raw material is marked with in sprue, fused raw material and form plastics cold burden layer 17 between upper compound plate 1 and runner plate 5 inwall, the wall thickness S of plastics cold burden layer is 5-7mm, plastics cold burden layer inside is plastic melt layer 18, plastic melt layer is communicated with a point cast gate for point sprue bush 8.Sprue 6 in runner plate 5 is designed to the larger runner of a diameter, this flow diameter is more than three times of common cold runner diameter, general diameter is more than 20mm, and each corner 29 place of sprue inwall is all excessive through circular arc, when first time, fused raw material is injected sprue 6 through main sprue bush 4, die cavity between die cavity 7 and core 15 is injected through each point of sprue bush 8 again by sprue, when after product 16 injection mo(u)lding cooling, the touching position of the fused raw material in sprue 6 and sprue inwall also can partly cool, form one deck plastics cold burden layer 17, and due to sprue 6 diameter larger, the sizing material of its inside still keeps molten condition, form still flowable plastic melt layer 18, now mould die sinking by product 16 ejection device of injection mo(u)lding, mould matched moulds again, continue to inject fused raw material in sprue 6, because plastics cold burden layer 17 cools, and cannot flow, plastics cold burden layer is just attached on sprue 6 wall always, play thermal insulation, insulation effect, reduce the heat loss of plastic melt layer 18, thus avoid plastic melt layer to cool fast, as long as injection mold maintenance work, the plastic melt that injector injection is come in flows through runner, constantly for runner provides heat, then ensure that the plastics of melting in plastic melt layer 18 do not solidify, injection moulding can not produce waste material always, until after injection mold quits work, do not continue to inject fused raw material in sprue 6, plastic melt layer 18 does not continue flowing, plastic melt layer also can solidify gradually, now form waste material in sprue 6, and all can form waste material relative to each injection mo(u)lding of cold runner, the waste material formed in this sprue is few, decrease waste of material, and relative to hot flow path, this sprue 6 can keep the plastics in runner to keep molten condition without the need to heater, structure is simpler, reduce manufacture, production cost.Contact position between described runner plate 5 and die cavity 7 has lateral air gap 19.Contact position between described point of sprue bush 8 and die cavity 7 has vertical the air gap 28.There are lateral air gap and vertical the air gap, reduced heat loss, prevent the fused raw material in sprue 6 from cooling fast.Described upper compound plate 1 sidewall has the first screw hole 20, runner plate 5 sidewall has the second screw hole 21, die cavity 7 sidewall has the 3rd screw hole 22, core 15 sidewall has the 4th screw hole 23, at upper compound plate 1, runner plate 5, die cavity 7 and core 15 sidewall, fixed head 24 is set, fixed head is fixed through the second screw 25 and runner plate 5, fixes through the 3rd screw 26 and die cavity 7, and fixes with upper compound plate 1 or core 15 through the first screw 27.When carrying out injection moulding, fixed through fixed head 24 and the first screw hole 20 in upper compound plate 1 by the first screw 27, fixed head and upper compound plate, runner plate 5 and die cavity 7 are fixed, and during die sinking action, mould can only be opened from die cavity 7 and core 15; After injection mold quits work, need the waste material in runner plate 5 to take out, then fixed through fixed head 24 and core 15 by the first screw 27, after mould die sinking, mould can only be opened from upper compound plate 1 and runner plate 5, is conveniently taken out by waste material.
Claims (4)
1. the adiabatic heat runner of injection mould multi-cavity sprue, comprise compound plate (1) and lower compound plate (2), upper compound plate is arranged centring ring (3) and main sprue bush (4), runner plate (5) is set under lower compound plate, sprue (6) is had in runner plate, die cavity (7) is set under runner plate, between die cavity and runner plate, a point sprue bush (8) is set, perforation (9) is had in lower compound plate (2), lower compound plate is arranged mould pin (10), lower compound plate between mould pin is arranged ejector retainner plate (11) and lower ejector retainner plate (12), on, lower ejector retainner plate is installed thimble (13), injector push rod (14) contacts with below lower ejector retainner plate through perforation (9), mould pin (10) arranges core (15), the product (16) of injection mo(u)lding is had between core and die cavity (7), thimble contacts with product through core, it is characterized in that: the diameter D of described sprue (6) is more than 20mm, corner (29) place of sprue inwall is excessive through circular arc, fused raw material is marked with in sprue, fused raw material and form plastics cold burden layer (17) between upper compound plate (1) and runner plate (5) inwall, the wall thickness S of plastics cold burden layer is 5-7mm, plastics cold burden layer inside is plastic melt layer (18), plastic melt layer is communicated with a point cast gate for point sprue bush (8).
2. the adiabatic heat runner of injection mould multi-cavity sprue as claimed in claim 1, is characterized in that: the contact position between described runner plate (5) and die cavity (7) has lateral air gap (19).
3. the adiabatic heat runner of injection mould multi-cavity sprue as claimed in claim 1, is characterized in that: the contact position between described point of sprue bush (8) and die cavity (7) has vertical the air gap (28).
4. the adiabatic heat runner of injection mould multi-cavity sprue as claimed in claim 1, it is characterized in that: described upper compound plate (1) sidewall has the first screw hole (20), runner plate (5) sidewall has the second screw hole (21), die cavity (7) sidewall has the 3rd screw hole (22), core (15) sidewall has the 4th screw hole (23), in upper compound plate (1), runner plate (5), die cavity (7) and core (15) sidewall arrange fixed head (24), fixed head is fixed through the second screw (25) and runner plate (5), fix through the 3rd screw (26) and die cavity (7), and fix through the first screw (27) and upper compound plate (1) or core (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510154.0U CN204183824U (en) | 2014-09-05 | 2014-09-05 | The adiabatic heat runner of injection mould multi-cavity sprue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510154.0U CN204183824U (en) | 2014-09-05 | 2014-09-05 | The adiabatic heat runner of injection mould multi-cavity sprue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204183824U true CN204183824U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420510154.0U Withdrawn - After Issue CN204183824U (en) | 2014-09-05 | 2014-09-05 | The adiabatic heat runner of injection mould multi-cavity sprue |
Country Status (1)
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| CN (1) | CN204183824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275775A (en) * | 2014-09-05 | 2015-01-14 | 浙江凯华模具有限公司 | Thermal-insulation hot runner of main runner of injection mold with multiple cavities |
-
2014
- 2014-09-05 CN CN201420510154.0U patent/CN204183824U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275775A (en) * | 2014-09-05 | 2015-01-14 | 浙江凯华模具有限公司 | Thermal-insulation hot runner of main runner of injection mold with multiple cavities |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |