CN205853286U - A kind of structure of controlling temperature of hot runner mould - Google Patents
A kind of structure of controlling temperature of hot runner mould Download PDFInfo
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- CN205853286U CN205853286U CN201620739907.4U CN201620739907U CN205853286U CN 205853286 U CN205853286 U CN 205853286U CN 201620739907 U CN201620739907 U CN 201620739907U CN 205853286 U CN205853286 U CN 205853286U
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- die cavity
- circulation tube
- medium circulation
- temperature
- tube road
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Abstract
This utility model provides the structure of controlling temperature of a kind of hot runner mould, belongs to technology of die manufacturing field.It solve the technical problems such as temperature field in existing mold is uneven.Hot runner mould includes dynamic model and cover half, dynamic model and cover half can draw close formation die cavity in opposite directions, structure of controlling temperature includes several medium circulation tube roads offered on dynamic model and cover half, medium circulation tube road is distributed in around die cavity, and the caliber in medium circulation tube road increases with the spatial separation on die cavity thickness direction and becomes big；Dynamic model or cover half are provided with the sensor for detecting die cavity neighboring area temperature; structure of controlling temperature also include controller and medium circulation tube road can be controlled in the heating module of medium temperature and refrigerating module, sensor, heating module and refrigerating module all electrically connect with controller.By the design to medium circulation tube road caliber in this utility model, it is ensured that the uniformity consistency of mold temperature field.
Description
Technical field
This utility model belongs to technology of die manufacturing field, relates to the structure of controlling temperature of a kind of hot runner mould.
Background technology
Mould be in commercial production in order to be molded, to be blow molded, to extrude, die casting, smelting, the method such as punching press obtain required product
Instrument.It has specific profile or cavity shape；Application has the contour shape of cutting edge can make blank by contour line shape
Separate；Application cavity shape can make blank obtain corresponding three-dimensional shape；Having processing simple, efficiency is high, it is possible to obtain
The advantages such as the product of complicated shape, are used widely；Hot runner mould be utilize heater to make runner in melt the most not
The mould of solidification.Because it is shorter than traditional moulds forming period, and more economize in raw materials, so hot runner mould is in the world today
Each industrially developed country and area all obtain extremely wide application.Hot runner mould is generally divided into two in molding process
Group mould temperature: one is the mold temperature before injection, and according to plastics molding process condition requirement, initial mould temperature is generally located on 45
DEG C～75 DEG C between, and require that mold temperature field is uniform；Two is that the cooling and solidifying of plastic ejects temperature, and moulding is at mould
The thermal balance in chamber, can reduce the contraction of product, improves the Forming Quality of product.The structure of controlling temperature of hot runner mould is wherein must
Indispensable part.
Chinese patent (notification number: CN203680764U, publication date: 2014-07-02) discloses and a kind of can quickly cool down
Mould, including the dynamic model that cover half is relative with cover half, cover half includes panel, A plate and apparatus for pouring, and dynamic model includes B plate, kickoff mechanism
Structure, mould foot and base plate, A plate is provided with die cavity with the junction of B plate, and the position of B plate correspondence die cavity is provided with core, and the surrounding of die cavity sets
Having cooling system, this cooling system is made up of multiple independent cooling pipes, and cooling water pipe is equal to the vertical dimension of die cavity,
This distance is 1～1.2 with the diameter ratio of cooling water pipe, and cooling pipe includes inlet duct and outlet conduit, and inlet duct leans on
Near point cast gate is arranged, and the vertical dimension of this spot pouring mouth to inlet duct and the diameter ratio of spot pouring mouth are 0.8～1, inlet duct
Equal with the vertical dimension of adjacent cooling pipe to the vertical dimension of outlet conduit, and the diameter ratio of this distance and cooling pipe
It is 3～5.
Mould structure disclosed in above-mentioned patent is provided with several independent cooling pipes, the unified control of all cooling pipes
System, and the velocity of medium in each pipeline is identical, due to the working of plastics variable thickness in mold cavity, it is difficult to ensure mould temperature
The uniformity of degree field.
Summary of the invention
The problems referred to above that this utility model exists for existing technology, it is provided that the structure of controlling temperature of a kind of hot runner mould,
Technical problem to be solved in the utility model is: how to control the temperature in mould and ensures the uniformity in temperature field.
The purpose of this utility model can be realized by following technical proposal:
The structure of controlling temperature of a kind of hot runner mould, hot runner mould includes dynamic model and cover half, and described dynamic model and cover half can
Draw close formation die cavity in opposite directions, it is characterised in that described structure of controlling temperature includes several media circulation offered on dynamic model and cover half
Pipeline, described medium circulation tube road is distributed in around described die cavity, and the caliber in described medium circulation tube road is with described die cavity
Spatial separation on thickness direction increases and becomes big；Described dynamic model or cover half are provided with for detecting described die cavity neighboring area temperature
The sensor of degree, described structure of controlling temperature also include controller and described medium circulation tube road can be controlled in the adding of medium temperature
Thermal modules and refrigerating module, described sensor, heating module and refrigerating module all electrically connect with described controller.
Its operation principle is as follows: owing to the wall thickness of mould molding product is not unified regular, needed for its wall thickness difference
The cavity space spacing wanted is also the most different, and the melt plastic cement consumption that diverse location needs in die cavity is the most different, is keeping
When temperature or cooled and solidified, carry out heat exchange required for heat also differ, the technical program is arranged in a mold some
Medium circulation tube road, in medium circulation tube road can flow-through fluid medium (such as deep fat, coolant etc.), medium circulation tube road according to
The wall thickness of shaped article has carried out the medium circulation tube that the bigger position of shaped article wall thickness in layout and design, i.e. die cavity is corresponding
The caliber in road is also big, and within the unit interval, the efficiency of heat exchange is the highest, meets temperature control demand.The technical program only needs one
Individual sensor carries out measurement and control of temperature feedback, when temperature is close to time temperature required, and controller controls heating module and refrigerating module stops
Only it is heated or cooled.
Structure of controlling temperature in the technical program may be used for the mold temperature before controlling injection and the cooling of plastic
Solidification ejects temperature；According to plastics molding process condition requirement, initial mould temperature is generally located between 45 DEG C～75 DEG C, moulds
The cooling and solidifying of material products ejects temperature and is generally located between 80 DEG C～90 DEG C.Injecting products thermal balance in die cavity, can
To reduce the contraction of product, improve the Forming Quality of product.By the design to medium circulation tube road caliber in the technical program,
Ensure that the uniformity consistency of mold temperature field.
In the structure of controlling temperature of above-mentioned hot runner mould, the spatial separation on described die cavity thickness direction is by the two of die cavity
Lateral middle part is gradually increased, and the caliber in described medium circulation tube road is proportional with the spatial separation on described die cavity thickness direction.
The shape and structure of die cavity designs according to shape of product, the caliber in medium circulation tube road respective change therewith, thus ensures mould
The uniformity consistency in temperature field.
In the structure of controlling temperature of above-mentioned hot runner mould, described cover half offers the stream being connected with described die cavity
Road, described runner is connected to the middle part of described die cavity, and described medium circulation tube road is distributed in the both sides of described runner.Runner is out
Melt plastic cement can conveniently carry out temperature adjusting, high efficient and reliable.
In the structure of controlling temperature of above-mentioned hot runner mould, the spatial separation on described die cavity thickness direction is by the two of die cavity
Lateral middle part linearly changes, and flowing to of each described medium circulation tube road is all consistent and single with the width of described mould
Described medium circulation tube road caliber is homogeneously same, and the medium circulation tube road caliber by the two of die cavity lateral middle part arrangements is the most proportional
Example increases.When so making temperature transfer more uniform, it is ensured that the uniformity of mold temperature field.
In the structure of controlling temperature of above-mentioned hot runner mould, all described medium circulation tube roads are equal along the periphery of described die cavity
Even spaced apart；Minimum range between all described medium circulation tube roads and described die cavity edge is the most equal.So carry out cold
But time, more efficient uniform, and make sensor be arranged on optional position, also can guarantee that the temperature value of detection is accurate, thus protect
The reliability of card mold temperature control and accuracy.
Compared with prior art, by the design to medium circulation tube road caliber in this utility model so that become in die cavity
The caliber in the medium circulation tube road that position that type product wall thickness is bigger is corresponding is the biggest, it is ensured that the uniformity of mold temperature field
Property.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of mould.
Fig. 2 is the control circuit structural representation of this structure of controlling temperature.
In figure, 1, dynamic model；2, cover half；21, runner；3, die cavity；4, medium circulation tube road；5, sensor；6, heating module；
7, refrigerating module；8, controller.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
This structure of controlling temperature ejects temperature for the cooling and solidifying controlling the mold temperature before being molded and plastic, according to
Plastics molding process condition requirement, initial mould temperature is generally located between 45 DEG C～75 DEG C, the cooling and solidifying of plastic
Eject temperature to be generally located between 80 DEG C～90 DEG C；As depicted in figs. 1 and 2, this hot runner mould includes dynamic model 1 and cover half 2,
Dynamic model 1 and cover half 2 can draw close formation die cavity 3 in opposite directions, and structure of controlling temperature includes several media offered on dynamic model 1 and cover half 2
Circulation duct 4, medium circulation tube road 4 is distributed in around die cavity 3, and the caliber in medium circulation tube road 4 is with die cavity 3 thickness direction
On spatial separation increase and become big；Dynamic model 1 or cover half 2 are provided with the sensor 5 for detecting die cavity 3 neighboring area temperature,
Structure of controlling temperature also include controller 8 and medium circulation tube road 4 can be controlled in the heating module 6 of medium temperature and refrigerating module
7, sensor 5, heating module 6 and refrigerating module 7 all electrically connect with controller 8；Due to mould molding product wall thickness not
Being unified regular, die cavity 3 spatial separation required for its wall thickness difference is also the most different, melt plastic cement not coordination in die cavity 3
Put the consumption of needs the most different, when keeping temperature or cooled and solidified, carry out heat exchange required for heat also differ,
The present embodiment arranges some medium circulation tube roads 4 in a mold, can flow-through fluid medium such as heat in medium circulation tube road 4
Oil, coolant etc., medium circulation tube road 4 has carried out layout and design according to the wall thickness of shaped article, i.e. shaped article in die cavity 3
The caliber in the medium circulation tube road 4 that position that wall thickness is bigger is corresponding is also big, and within the unit interval, the efficiency of heat exchange is the highest,
Meet temperature control demand.The present embodiment only need a sensor 5 carry out measurement and control of temperature feedback, when temperature is close to time temperature required,
Controller 8 controls heating module 6 and refrigerating module 7 stops being heated or cooled；Injecting products thermal balance in die cavity 3, permissible
Reduce the contraction of product, improve the Forming Quality of product.By the design to medium circulation tube road 4 caliber in the present embodiment, protect
Demonstrate,prove the uniformity consistency of mold temperature field.
As it is shown in figure 1, offer the runner 21 being connected with die cavity 3 on cover half 2, runner 21 is connected to the middle part of die cavity 3,
Medium circulation tube road 4 is distributed in the both sides of runner 21；All Media circulation duct 4 is distributed along the periphery uniform intervals of die cavity 3；Institute
There is the minimum range between medium circulation tube road 4 with die cavity 3 edge the most equal.Further, die cavity 3 thickness side in the present embodiment
Spatial separation upwards is gradually increased by the two of die cavity 3 lateral middle parts, the caliber in medium circulation tube road 4 and die cavity 3 thickness direction
On spatial separation proportional, the shape and structure of die cavity 3 designs according to shape of product, and the caliber in medium circulation tube road 4 is therewith
Respective change, thus ensure the uniformity consistency of mold temperature field；Spatial separation on die cavity 3 thickness direction is by the two of die cavity 3
Lateral middle part linearly changes, each medium circulation tube road 4 flow to all consistent with the width of mould and single medium stream
4 calibers of threading a pipe are the most identical, the medium circulation tube road 4 the most proportional example of caliber of the two of die cavity 3 lateral middle part arrangements increase,
When so making temperature transfer more uniform, it is ensured that the uniformity of mold temperature field.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although the most more employing 1, dynamic model；2, cover half；21, runner；3, die cavity；4, medium circulation tube road；5, pass
Sensor；6, heating module；7, refrigerating module；8, the term such as controller, but it is not precluded from using the probability of other term.Use
These terms are only used to describe and explain essence of the present utility model more easily；It is construed as any additional
Restriction be all contrary with this utility model spirit.
Claims (5)
1. a structure of controlling temperature for hot runner mould, hot runner mould includes dynamic model (1) and cover half (2), described dynamic model (1) and fixed
Mould (2) can draw close formation die cavity (3) in opposite directions, it is characterised in that described structure of controlling temperature includes opening on dynamic model (1) and cover half (2)
If several medium circulation tube roads (4), described medium circulation tube road (4) is distributed in described die cavity (3) around, is given an account of
The thread a pipe caliber of (4) of mass flow increases with the spatial separation on described die cavity (3) thickness direction and becomes big；Described dynamic model (1) or
Cover half (2) is provided with the sensor (5) for detecting described die cavity (3) neighboring area temperature, and described structure of controlling temperature also includes control
Device processed (8) and heating module (6) and refrigerating module (7), the institute of the interior medium temperature of described medium circulation tube road (4) can be controlled
State sensor (5), heating module (6) and refrigerating module (7) all to electrically connect with described controller (8).
The structure of controlling temperature of hot runner mould the most according to claim 1, it is characterised in that described die cavity (3) thickness direction
On spatial separation be gradually increased by the two of die cavity (3) lateral middle parts, the caliber of described medium circulation tube road (4) and described die cavity
(3) spatial separation on thickness direction is proportional.
The structure of controlling temperature of hot runner mould the most according to claim 2, it is characterised in that described cover half offers on (2)
The runner (21) being connected with described die cavity (3), described runner (21) is connected to the middle part of described die cavity (3), described medium stream
Thread a pipe (4) be distributed in the both sides of described runner (21).
The structure of controlling temperature of hot runner mould the most according to claim 3, it is characterised in that described die cavity (3) thickness direction
On spatial separation linearly changed by the two of die cavity (3) lateral middle parts, the flow direction of each described medium circulation tube road (4) all with
The width of described mould is consistent and single described medium circulation tube road (4) caliber is the most identical, by the two of die cavity (3) lateral in
The most proportional example of medium circulation tube road (4) caliber of portion's arrangement increases.
5. according to the structure of controlling temperature of the hot runner mould described in claim 1 or 2 or 3 or 4, it is characterised in that all given an account of
Mass flow thread a pipe (4) along described die cavity (3) periphery uniform intervals be distributed；All described medium circulation tube roads (4) and described type
Minimum range between chamber (3) edge is the most equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739907.4U CN205853286U (en) | 2016-07-13 | 2016-07-13 | A kind of structure of controlling temperature of hot runner mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739907.4U CN205853286U (en) | 2016-07-13 | 2016-07-13 | A kind of structure of controlling temperature of hot runner mould |
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| Publication Number | Publication Date |
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| CN205853286U true CN205853286U (en) | 2017-01-04 |
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| CN201620739907.4U Active CN205853286U (en) | 2016-07-13 | 2016-07-13 | A kind of structure of controlling temperature of hot runner mould |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284566A (en) * | 2017-12-28 | 2018-07-17 | 太仓朗盛金属制品有限公司 | A kind of mold and its working method shortening working hour |
| CN108407242A (en) * | 2018-05-11 | 2018-08-17 | 珠海格力精密模具有限公司 | Mold |
| CN108772554A (en) * | 2018-07-20 | 2018-11-09 | 宁波普锐明汽车零部件有限公司 | A kind of intelligence die casting closed-loop temperature control system |
-
2016
- 2016-07-13 CN CN201620739907.4U patent/CN205853286U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284566A (en) * | 2017-12-28 | 2018-07-17 | 太仓朗盛金属制品有限公司 | A kind of mold and its working method shortening working hour |
| CN108407242A (en) * | 2018-05-11 | 2018-08-17 | 珠海格力精密模具有限公司 | Mold |
| CN108407242B (en) * | 2018-05-11 | 2023-10-27 | 珠海格力精密模具有限公司 | Mould |
| CN108772554A (en) * | 2018-07-20 | 2018-11-09 | 宁波普锐明汽车零部件有限公司 | A kind of intelligence die casting closed-loop temperature control system |
| CN108772554B (en) * | 2018-07-20 | 2023-09-01 | 宁波普锐明汽车零部件有限公司 | Intelligent die-casting die closed-loop temperature control system |
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