CN205767269U - Injection mold water-cooled sprue bush - Google Patents
Injection mold water-cooled sprue bush Download PDFInfo
- Publication number
- CN205767269U CN205767269U CN201620593288.2U CN201620593288U CN205767269U CN 205767269 U CN205767269 U CN 205767269U CN 201620593288 U CN201620593288 U CN 201620593288U CN 205767269 U CN205767269 U CN 205767269U
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- mounting flange
- inner core
- sprue bush
- cooling
- sidewall
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Abstract
This utility model relates to a kind of injection mold water-cooled sprue bush, including inner core and overcoat, the center of described inner core be provided with axially through injection channel, the sidewall of inner core is provided with the cooling bath of Cooling Water circulation, described overcoat is enclosed within the sidewall of inner core, cooling bath on capping innercore sidewall constitutes the cooling duct of sprue bush, the sidewall of described overcoat arranges a mounting flange, described mounting flange is provided with the screw passed for bolt, one inlet opening is arranged on mounting flange, connect with the upstream extremity of cooling duct, one apopore is arranged on mounting flange, connect with the downstream of cooling duct.This utility model can effective shortening forming time, it is achieved the circulation molding of mould height, prevents wire drawing simultaneously, improves the molding production efficiency of injection mold.
Description
Technical field
This utility model relates to injection mold field, particularly to a kind of injection mold water-cooled sprue bush.
Background technology
Injection mold is a kind of instrument producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension
Instrument, by being heated, the plastic material melted is injected die cavity by nozzle plenum, after cooled solidification, obtains formed products.
Sprue bush is to allow melted plastic material be injected into the runner of mould inside from the nozzle of injection machine, is to connect molding
Mould and the metal fittings of injection machine.During melted plastic material injects to mould inside cooling molding from injection machine,
Owing to cast gate jacket wall is thicker, radiating efficiency is low, and molten plastic herein needs long period condensation cured, consumes in molding cycle
Time most.If injection molding part does not cool down with regard to die sinking through enough time, at sprue bush, easily produce wire drawing phenomenon, cause
Formed product failure.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, it is provided that a kind of injection mold water-cooled sprue bush, can have
Effect shortening forming time, it is achieved mould height circulation molding, prevents wire drawing simultaneously, improves the molding production efficiency of injection mold.
The technical solution of the utility model is: a kind of injection mold water-cooled sprue bush, including inner core and overcoat, described inner core
Center be provided with axially through injection channel, the sidewall of inner core be provided with Cooling Water circulation cooling bath, described overcoat set
On the sidewall of inner core, the cooling bath on capping innercore sidewall constitutes the cooling duct of sprue bush, and the sidewall of described overcoat is arranged
One mounting flange, described mounting flange is provided with the screw passed for bolt, and an inlet opening is arranged on mounting flange, logical with cooling
The upstream extremity connection in road, an apopore is arranged on mounting flange, connects with the downstream of cooling duct.
The injection channel of described inner core is into moulding the bellmouth that end opening is little, plastic-blasting end opening is big.
Described cooling bath includes the first bar-shaped trough, the second bar-shaped trough and cannelure, described first bar-shaped trough, the second bar-shaped trough
All along the axially extending of inner core and divide equally 360 ° of circumference, described cannelure is arranged on inner core closely on the sidewall of plastic-blasting end, connection
First bar-shaped trough, the second bar-shaped trough constitute the cooling bath of Cooling Water circulation.
Described inlet opening radially extending along mounting flange, one end is positioned at the side of mounting flange, and the other end is logical with cooling
The upstream extremity connection in road；Described apopore radially extending along mounting flange, one end is positioned at the side of mounting flange, the other end with
The downstream connection of cooling duct.
One end of described inlet opening is positioned at the axial end of mounting flange, and the other end connects with the upstream extremity of cooling duct；Institute
The one end stating apopore is positioned at the axial end of mounting flange, and the other end connects with the downstream of cooling duct.
Described overcoat is tightly placed on the sidewall of inner core by interference fit.
The described screw quantity being arranged on mounting flange is two and uniform 360 ° of circumference.
Employing technique scheme: a kind of injection mold water-cooled sprue bush, including inner core and overcoat, the center of described inner core
Be provided with axially through injection channel, melted plastic material is cooled to by injection channel spray from injection machine to die cavity
Type.The sidewall of inner core is provided with the cooling bath of Cooling Water circulation, and described overcoat is enclosed within the sidewall of inner core, on capping innercore sidewall
Cooling bath constitute sprue bush cooling duct, when injection machine has shot material, sprue bush temperature raises rapidly, product enter protect
When pressure, cooling stage, cooling current are logical in the cooling channel, can quickly take away the heat at sprue bush, it is ensured that at sprue bush
Gate materials can cool down molding with fast speed, with shaped article break away from moulds, is effectively increased the efficiency that injection produces, it is to avoid
Because wall is thicker, heat is difficult to Quick diffusing to tradition sprue bush, causes that gate materials shaping speed is slow, the defect of easy wire drawing.Described
The sidewall of overcoat arranges a mounting flange, and described mounting flange is provided with the screw passed for bolt, and an inlet opening is arranged on installation
On flange, connecting with the upstream extremity of cooling duct, an apopore is arranged on mounting flange, connects with the downstream of cooling duct
Logical, sprue bush, is fixed on injection molding mould plate through the screw on mounting flange by bolt, is noted to cooling duct by inlet opening
Entering and cool down water, cooling water circulates along cooling duct, discharges from apopore, takes away rapidly heat, make sprue bush fast cooling, effectively
Improve injection production efficiency.
Described cooling bath includes the first bar-shaped trough, the second bar-shaped trough and cannelure, described first bar-shaped trough, the second bar-shaped trough
All along the axially extending of inner core and divide equally 360 ° of circumference, described cannelure is arranged on inner core closely on the sidewall of plastic-blasting end, connection
First bar-shaped trough, the second bar-shaped trough constitute the cooling bath of Cooling Water circulation, and the first bar-shaped trough, the second bar-shaped trough are in the side of inner core
Wall is uniformly distributed, and makes cooling water can uniformly cool down sprue bush, it is to avoid sprue bush local temperature is higher affects gate materials cooling molding,
Cannelure is arranged on inner core and closely connects the first bar-shaped trough, the second bar-shaped trough on the sidewall of plastic-blasting end, make the first bar-shaped trough, second
The extended distance of bar-shaped trough is long, big to the film-cooled heat of sprue bush, improves the cooling effectiveness of cooling water, is beneficial to quickly reduce water
The temperature of muzzle.
It is further described with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is that the A of Fig. 1 is to schematic diagram；
Fig. 3 is the B-B sectional view of Fig. 2.
In accompanying drawing, 1 is inner core, and 2 is overcoat, and 3 is injection channel, and 4 is cooling bath, and 41 is the first bar-shaped trough, and 42 is second
Bar-shaped trough, 43 is cannelure, and 5 is cooling duct, and 6 is mounting flange, and 7 is screw, and 8 is inlet opening, and 9 is apopore.
Detailed description of the invention
See Fig. 1 to Fig. 3, for the specific embodiment of a kind of injection mold water-cooled sprue bush.Injection mold water-cooled sprue bush
Including inner core 1 and overcoat 2, the length of inner core 1 is more than or equal to the length of overcoat 2.The center of described inner core 1 is provided with to be passed through vertically
The injection channel 3 worn, for improving the injection efficiency of melted plastic material, and is easy to the demoulding, and the injection channel 3 of described inner core 1 is
Enter to mould the bellmouth that end opening is little, plastic-blasting end opening is big.The sidewall of inner core 1 is provided with the cooling bath 4 of Cooling Water circulation, this enforcement
In example, described cooling bath 4 includes the first bar-shaped trough the 41, second bar-shaped trough 42 and cannelure 43, described first bar-shaped trough 41, second
Bar-shaped trough 42 is all along the axially extending of inner core 1 and divide equally 360 ° of circumference, and it is near from plastic-blasting end that described cannelure 43 is arranged on inner core 1
On sidewall, connect first bar-shaped trough the 41, second bar-shaped trough 42 and constitute the cooling bath 4 of Cooling Water circulation.In described overcoat 2 is enclosed within
On the sidewall of core 1, the cooling bath 4 on capping innercore sidewall constitutes the cooling duct 5 of sprue bush, for ensureing capping effect, described
Overcoat is tightly placed on the sidewall of inner core by interference fit, and concrete mode is: overcoat is heated to 300 DEG C, then inner sleeve is knocked in
In overcoat, making entering to mould end and flushing of inner core and overcoat, the plastic-blasting end of inner core overhangs overcoat or flushes overcoat, after overcoat cooling,
The inwall of overcoat fits tightly with the sidewall of inner core, forms interference fit, the notch of capping cooling bath, forms cooling duct.Institute
The sidewall stating overcoat 2 arranges a mounting flange 6, and described mounting flange 6 is provided with the screw 7 passed for bolt, and an inlet opening 8 is arranged
On mounting flange 6, connecting with the upstream extremity of cooling duct 5, an apopore 9 is arranged on mounting flange 6, with cooling duct 5
Downstream connection, in the present embodiment, described mounting flange be arranged on overcoat enter to mould end, be arranged on the spiral shell on mounting flange 6
Hole 7 quantity is two and uniform 360 ° of circumference, and described inlet opening 8 radially extending along mounting flange 6, one end is positioned at mounting flange
The side of 6, the other end connects with the upstream extremity of cooling duct 5, inlet opening also can axially extending along mounting flange, one end is positioned at
The axial end of mounting flange 6, the other end connects with the upstream extremity of cooling duct 5；Described apopore 9 is along the radial direction of mounting flange 6
Extending, one end is positioned at the side of mounting flange 6, and the other end connects with the downstream of cooling duct 5, and apopore also can be convex along installing
Edge axially extending, one end is positioned at the axial end of mounting flange 6, and the other end connects with the downstream of cooling duct 5.
This utility model, when injection mold injection produces, sequentially includes the following steps:
1, being installed on injection machine by mould, the inlet opening of sprue bush connects with external water pipe, outlet pipe and external connection row
Cross current；
2, start produces, and adjusts molding proces s parameters；
When 3, shooting material, high-temperature fusion plastic material high speed and high pressure enters in mold cavity through sprue bush, sprue bush simultaneously
It is rapidly heated；
4, after having shot material, product enters pressurize, cooling stage, and external water pipe injects cold by inlet opening to cooling duct
But water, cooling water is taken away heat along the first bar-shaped trough, cannelure, the second bar-shaped trough, and is entered external connection row water pipe by apopore
Draining, sprue bush is lowered the temperature rapidly；
5, product has cooled down, simultaneously gate materials also cooling and shaping, can eject with product and de-material.
This utility model simple in construction, easy to operate, the product cooling and shaping time can be shortened, improve injection and produce effect
Rate.
Claims (7)
1. an injection mold water-cooled sprue bush, it is characterised in that: include inner core (1) and overcoat (2), in described inner core (1)
The heart be provided with axially through injection channel (3), the sidewall of inner core (1) be provided with Cooling Water circulation cooling bath (4), described outside
Set (2) is enclosed within the sidewall of inner core (1), and the cooling bath (4) on capping innercore sidewall constitutes the cooling duct (5) of sprue bush, institute
The sidewall stating overcoat (2) arranges a mounting flange (6), and described mounting flange (6) is provided with the screw (7) passed for bolt, and one enters
Water hole (8) is arranged on mounting flange (6), connects with the upstream extremity of cooling duct (5), and it is convex that an apopore (9) is arranged on installation
On edge (6), connect with the downstream of cooling duct (5).
Injection mold water-cooled sprue bush the most according to claim 1, it is characterised in that: the injection channel of described inner core (1)
(3) it is into moulding the bellmouth that end opening is little, plastic-blasting end opening is big.
Injection mold water-cooled sprue bush the most according to claim 1, it is characterised in that: described cooling bath (4) includes first
Bar-shaped trough (41), the second bar-shaped trough (42) and cannelure (43), described first bar-shaped trough (41), the second bar-shaped trough (42) are all along interior
Core (1) axially extending and divide equally 360 ° of circumference, it is near on the sidewall of plastic-blasting end that described cannelure (43) is arranged on inner core (1),
Connect the first bar-shaped trough (41), the second bar-shaped trough (42) constitutes the cooling bath (4) that Cooling Water circulates.
Injection mold water-cooled sprue bush the most according to claim 1, it is characterised in that: described inlet opening (8) are convex along installing
Radially extending of edge (6), one end is positioned at the side of mounting flange (6), and the other end connects with the upstream extremity of cooling duct (5)；Institute
Stating apopore (9) radially extending along mounting flange (6), one end is positioned at the side of mounting flange (6), the other end and cooling duct
(5) downstream connection.
Injection mold water-cooled sprue bush the most according to claim 1, it is characterised in that: the position, one end of described inlet opening (8)
In the axial end of mounting flange (6), the other end connects with the upstream extremity of cooling duct (5)；One end of described apopore (9) is positioned at
The axial end of mounting flange (6), the other end connects with the downstream of cooling duct (5).
Injection mold water-cooled sprue bush the most according to claim 1, it is characterised in that: described overcoat (2) is joined by interference
Conjunction is tightly placed on the sidewall of inner core (1).
Injection mold water-cooled sprue bush the most according to claim 1, it is characterised in that be arranged on mounting flange (6) described in:
On screw (7) quantity be two and uniform 360 ° of circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620593288.2U CN205767269U (en) | 2016-06-17 | 2016-06-17 | Injection mold water-cooled sprue bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620593288.2U CN205767269U (en) | 2016-06-17 | 2016-06-17 | Injection mold water-cooled sprue bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205767269U true CN205767269U (en) | 2016-12-07 |
Family
ID=58132660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620593288.2U Active CN205767269U (en) | 2016-06-17 | 2016-06-17 | Injection mold water-cooled sprue bush |
Country Status (1)
| Country | Link |
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| CN (1) | CN205767269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738590A (en) * | 2016-12-16 | 2017-05-31 | 浙江海峰制鞋设备有限公司 | A kind of pouring head overcoat for PU materials |
-
2016
- 2016-06-17 CN CN201620593288.2U patent/CN205767269U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738590A (en) * | 2016-12-16 | 2017-05-31 | 浙江海峰制鞋设备有限公司 | A kind of pouring head overcoat for PU materials |
| CN106738590B (en) * | 2016-12-16 | 2023-01-17 | 浙江海峰自动化设备有限公司 | Casting head jacket for PU material |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |