CN108995159A - The cooling structure of mold core - Google Patents
The cooling structure of mold core Download PDFInfo
- Publication number
- CN108995159A CN108995159A CN201810788124.9A CN201810788124A CN108995159A CN 108995159 A CN108995159 A CN 108995159A CN 201810788124 A CN201810788124 A CN 201810788124A CN 108995159 A CN108995159 A CN 108995159A
- Authority
- CN
- China
- Prior art keywords
- mold core
- forming part
- cooling circuit
- cooling
- cooling structure
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 103
- 239000007788 liquid Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000009792 diffusion process Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000012545 processing Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
Abstract
The cooling structure of mold core, the mold core includes forming part, cooling circuit at one is at least offered along the track in the section of the forming part in the mold core, it further include the holding part that many places are connected to the cooling circuit and extend along the axial direction of the forming part in the forming part, heat-conducting piece is provided in the holding part, one end of the cooling circuit is provided with inlet, and the other end is provided with liquid outlet.The cooling structure of mold core of the invention, cooling circuit is opened up by the track in mold core along forming part, profile-followed fortune water, and holding part is set in forming part to accommodate heat-conducting piece, the cooling efficiency of mold core can be improved and cool down quality, and the use of heat-conducting piece, then forming part can be made directly to be quickly cooled down by heat-conducting piece, therefore it can simplify cooling circuit, reduce difficulty of processing.
Description
Technical field
The present invention relates to injection mold field more particularly to the cooling structures of mold core.
Background technique
In injection mold, cooling structure is one of its nuclear structure, to the type core (mold core) of mold or the longevity of type chamber
Life, the production efficiency and quality of injecting products all have important influence.For the cooling structure of mold core, existing way
Usually: in mold core introversion inclined borehole, nose end is mutually touched and is worn, and is formed " crown shapes fortune water ".The shortcomings that this cooling structure, is:
Firstly, when mold core space is limited, when for example not only high but also thin, the water route of " crown shapes fortune water ", very thin and long and narrow, hydraulic losses
Seriously, cooling efficiency and quality is caused to substantially reduce；Secondly, thin and long and narrow water route is easy to cause to occlude because of the reasons such as get rusty
And make cooling failure；Again, mold core drilling is more, is also easy that mold insert structure is made to die down；It wears, needs finally, inclined drill is mutually collided
Very accurate processing, not only processing cost is high, at the same drill bore brokenly mold core risk it is also big.
Therefore, the cooling structure of existing mold core, there are cooling efficiency is low and the technology of cooling poor quality, processing difficulties
Problem.
Summary of the invention
The present invention in view of the above technical problems, in order to improve the cooling efficiency and cooling quality of mold core, and reduces it and adds
Work difficulty proposes a kind of cooling structure of mold core.
The cooling structure of mold core, the mold core include forming part, along the track in the section of the forming part in the mold core
Cooling circuit at one is at least offered, further includes that many places are connected to and along the forming part with the cooling circuit in the forming part
The holding part that extends of axial direction, be provided with heat-conducting piece in the holding part, one end of the cooling circuit is provided with feed liquor
Mouthful, the other end is provided with liquid outlet.
Preferably, the mold core includes the lower mold core with the first joint portion and the upper mold core with the second joint portion, institute
Lower mold core and the upper mold core is stated to open by first joint portion and second joint portion diffusion bonding, the cooling circuit
It is located between the lower mold core and the upper mold core.
Preferably, the forming part is arranged in the lower mold core, is integrally formed with first joint portion, and edge and institute
State the second joint portion mutually from direction extend.
It is further preferred that the forming part is cylindrical.
Preferably, the cooling circuit is arranged on first joint portion, and the section of the cooling circuit is u-shaped,
The heat-conducting piece is embedded in the holding part and extends partially into the cooling circuit.
Preferably, the heat-conducting piece and the lower mold core and the upper mold core diffusion bonding.
Preferably, the material of the heat-conducting piece is the one or more of them of silver, copper, aluminium, tungsten, magnesium.
Preferably, the holding part is blind hole, and the shape of the heat-conducting piece is cylindric.
Preferably, the cooling circuit includes several places, and circumferentially distributed around the axle center of the forming part, described in everywhere
One end of cooling circuit is provided with the inlet, and the other end is provided with the liquid outlet.
The cooling structure of mold core of the invention opens up cooling circuit by the track in mold core along forming part, profile-followed to transport
Water, and holding part is set to accommodate heat-conducting piece in forming part, the cooling efficiency and cooling quality of mold core can be improved, and it is thermally conductive
The use of part can then be such that forming part is directly quickly cooled down by heat-conducting piece, therefore can simplify cooling circuit, reduce difficult processing
Degree.
Detailed description of the invention
Fig. 1 (a) is a kind of top view of embodiment of the cooling structure of mold core of the invention；
Fig. 1 (b) is the cross-sectional view at Fig. 1 (a) A-A；
Fig. 2 is the part perspective view of the explosion of the cooling structure of the mold core of Fig. 1 (a)；
Fig. 3 is a kind of structural schematic diagram of improvement embodiment of cooling circuit.
Specific embodiment
Referring to Fig. 1 to 3, elaborate to the present invention.It should be pointed out that the present invention can be with many different
Mode is realized, however it is not limited to embodiment described herein, on the contrary, the purpose of providing these embodiments is to make this field
Technical staff is more thorough and comprehensive to content understanding disclosed in this invention.In the various views of attached drawing, identical attached drawing mark
Note refers to the same or similar component.
(a), Fig. 1 (b), Fig. 2 referring to Fig.1, the cooling structure of mold core, mold core include forming part 1, in the present embodiment, at
Type portion 1 is generally cylindrical, not to make restriction certainly, and forming part 1 is mainly designed according to the shape of the product of injection molding, e.g.,
It is also possible to rectangular tubular, tubular of taper etc..It in the present embodiment, is that cylindric plastic cup is said as an example with product
Bright, therefore, in the present embodiment, forming part 1 is generally shaped like cylindrical shape.
Shape, the shape of protrusion just like notch can be arranged according to the specific structure of plastic cup in the wall portion 12 of forming part 1
Deng.When as there is " bone " on plastic cup, many places can be set since outer end in the wall portion 12 of forming part 1, having extended along middle part
Slit 11, slit 11 is circumferentially distributed around the axle center S of forming part 1.
Cooling circuit 2 at one are at least offered along the track in the section of forming part 1 in mold core, in the present embodiment, due to
Forming part 1 is generally cylindrical, therefore cooling circuit 2 is also substantially ring-shaped cooling circuit 2, to transport water with the shape in mold core,
Profile-followed fortune water refers to that cooling circuit 2 follows plastic cup (product) to need cooling position, accordingly designs water-cooling loop.Certainly,
In the present embodiment, since cooling medium is water, cooling circuit 2 is provided for fortune water, in other embodiments,
Cooling medium equally can use cooling oil, cooling nitrogen etc. according to demand.In the present embodiment, annular cooling circuit 2
Substantially planar annular, in other embodiments, the weight that cooling circuit 2 can also be cooling according to product structure or needs
Point position, is set as the cooling circuit 2 of other shape.2 major advantage of cooling circuit of planar annular is easy for processing, no
It needs in mold core introversion inclined borehole, nose end is mutually touched and worn.
Since the cooling to plastic cup is related to entire wall of cup, there is still a need for setting coolings for the wall portion 12 of forming part 1
Structure.It in the present embodiment, further include that many places are connected to cooling circuit 2 and extend along the axial S of forming part 1 in forming part 1
Holding part 3, holding part 3 can uniformly arrange along cooling circuit 2, the axle center S around forming part 1, and the mode of arrangement can be with one
A holding part 3 is uniformly arranged as one group, can also uniformly be arranged using two holding parts 3 as one group.It is provided in holding part 3
Heat-conducting piece 4, one end of cooling circuit 2 are provided with inlet 21, and the other end is provided with liquid outlet 22.
In the present embodiment, holding part 3 can be set to be approximately perpendicular to cooling circuit 2, and along the wall portion of forming part 1 12
(that is: the axial S of forming part 1) extends.The shape of holding part 3 can be the various shapes such as through hole shape, blind hole shape, channel-shaped, with this
Corresponding, heat-conducting piece 4 is then arranged corresponding to the shape of holding part 3.As holding part 3 shape be blind hole shape when, the shape of heat-conducting piece 4
It is then cylindric.The water for flowing through cooling circuit 2 in order to prevent remains in holding part 3, and heat-conducting piece 4 is set as insertion holding part 3
Afterwards, holding part 3 can be completely filled with.
Heat-conducting piece 4 refers to for the material of forming part 1, uses the work for being more easier thermally conductive material and completing the process
Part.When such as mold core (forming part) uses T8 (type that hardens die steel), T10 (carbon tool steel) material, the material of heat-conducting piece 4
It can be the one or more of them of silver, copper, aluminium, tungsten, magnesium etc., in the present embodiment, preferred copper material is added using copper material part
Work places it in the holding part 3 of blind hole shape at cylindrical copper branch.
Therefore, cooling circuit 2 at one are at least offered by the track along mold core along the section of forming part 1, and passed through
The heat-conducting piece 4 of many places being connected to cooling circuit 2 is set in forming part 1, and indeed achieving will be cooled back by heat-conducting piece 4
The refrigerating function on road 2 covers entire forming part 1, and due to processing the holding part 3 for accommodating heat-conducting piece 4, it is approximately perpendicular to cold
But circuit 2, it is therefore, also very simple in processing, it can be to avoid the various drawbacks of such as processing in the water route of " crown shapes fortune water ".
Further, embodiment as an improvement of this embodiment, in order to further decrease difficulty of processing, mold core includes
Lower mold core 5 with the first joint portion 51 and the upper mold core 6 with the second joint portion 61, lower mold core 5 and upper mold core 6 pass through first
61 diffusion bonding of joint portion 51 and the second joint portion, cooling circuit 2 are provided between lower mold core 5 and upper mold core 6.Expansion of the invention
Scattered engagement refers to Diffusion Welding known to ordinary skill in the art, refers to the material surface to contact with each other, in temperature
With it is close to each other under the action of pressure, be locally plastically deformed, between atom generate phase counterdiffusion, new expansion is formed in interface
Layer is dissipated, to realize a kind of connection type being reliably connected.
In this embodiment, forming part 1 is arranged in lower mold core 5, is integrally formed with the first joint portion 51, and edge and second
61 phase of joint portion from direction extend.Integrated molding herein generally refer to forming part 1 and the first joint portion 51 pass through it is same
The integrated molding of the machine-shaping of block raw material or direct casting and forming etc..From the appearance, forming part 1 and the first joint portion
51 integrally formed structure is substantially in Flange-shaped Parts.Cooling circuit 2 can be set on the first joint portion 51, further, cold
But circuit 2 is arranged on the surface at the first joint portion 51, and section is u-shaped, since cooling circuit 2 is directly at the first joint portion
It is processed on 51 surface, therefore, also greatly reduces the difficulty of processing.And holding part 3 is then approximately perpendicular to cooling circuit 2,
And at least partly from the top of cooling circuit 2, it is processed into blind hole along the axial S of the wall portion 12 of forming part 1, and copper branch is embedding
Enter holding part 3 and extends partially into cooling circuit 2.
Copper branch (heat-conducting piece) 4 and 6 diffusion bonding of lower mold core 5 and upper mold core, it may be assumed that copper branch 4, lower mold core 5, upper mold core 6 pass through
The mode of diffusion bonding forms the internal mold core with cooling circuit 2 and the conduction copper branch 4 being connected to cooling circuit 2.
The cooling structure of the mold core formed in this way, cooling efficiency is high, cooling is high-quality, due to not needing in mould
The inside of core processes various thin and long and narrow water route, therefore is more easier to process.
Referring to Fig. 3, further, although in the above-described embodiment, cooling circuit 2 only has at one, shape in a ring
Around forming part 1, to transport water with the shape, and all copper branch connection conductings are got up.But cooling circuit 2 equally can wrap
Several places are included, if cooling circuit 2 may include 2a/2b/2c/2d, and, everywhere circumferentially distributed around the axle center of forming part 1 everywhere
Cooling circuit 2 is not interconnected, and one end of everywhere cooling circuit 2 is provided with inlet 21, and the other end is provided with
Liquid outlet 22.In this embodiment, holding part 3 on the whole, be equally it is circumferentially distributed around the axle center of forming part 1, still, and not
The holding part 3 that same cooling circuit 2 is connected to is then relatively independent between each other.By the way that different cooling circuits 2 is arranged, can shorten
Therefore the distance of cooling circuit 2, the time recycled so as to shorten cooling circuit 2 can be further improved the cooling efficiency of mold core
And cooling quality.
Each specific technical characteristic as described in the above specific embodiments in the case of no contradiction can be with
It is combined in any manner, for unnecessary repetition, the present invention is to various combinations of possible ways not otherwise stated.
The above examples are only used to illustrate the technical scheme of the present invention and is not intended to limit it, all without departing from the present invention
Any modification of range or equivalent replacement should all be included in technical solution of the present invention.
Claims (9)
1. the cooling structure of mold core, which is characterized in that the mold core includes forming part, cutting along the forming part in the mold core
The track in face at least offers cooling circuit at one, further includes that many places are connected to and along institute with the cooling circuit in the forming part
The holding part that the axial direction of forming part extends is stated, is provided with heat-conducting piece in the holding part, one end of the cooling circuit is set
It is equipped with inlet, the other end is provided with liquid outlet.
2. the cooling structure of mold core according to claim 1, which is characterized in that the mold core includes having the first joint portion
Lower mold core and upper mold core with the second joint portion, the lower mold core and the upper mold core pass through first joint portion and institute
The second joint portion diffusion bonding is stated, the cooling circuit is provided between the lower mold core and the upper mold core.
3. the cooling structure of mold core according to claim 2, which is characterized in that the forming part is arranged in the lower mold core
On, be integrally formed with first joint portion, and along with second joint portion mutually from direction extend.
4. the cooling structure of mold core according to claim 1 or 2 or 3, which is characterized in that the forming part is cylindrical.
5. the cooling structure of mold core according to claim 3, which is characterized in that the cooling circuit is arranged described first
On joint portion, the section of the cooling circuit is u-shaped, and the heat-conducting piece is embedded in the holding part and extends partially into described cold
But circuit.
6. the cooling structure of mold core according to claim 5, which is characterized in that the heat-conducting piece and the lower mold core and institute
State upper mold core diffusion bonding.
7. the cooling structure of mold core described according to claim 1 or 5 or 6, which is characterized in that the material of the heat-conducting piece is
The one or more of them of silver, copper, aluminium, tungsten, magnesium.
8. the cooling structure of mold core according to claim 1, which is characterized in that the holding part is blind hole, described thermally conductive
The shape of part is cylindric.
9. the cooling structure of mold core according to claim 4, which is characterized in that the cooling circuit includes several places, and
Axle center around the forming part is circumferentially distributed, and one end of cooling circuit described in everywhere is provided with the inlet, the other end
It is provided with the liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810788124.9A CN108995159A (en) | 2018-07-18 | 2018-07-18 | The cooling structure of mold core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810788124.9A CN108995159A (en) | 2018-07-18 | 2018-07-18 | The cooling structure of mold core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108995159A true CN108995159A (en) | 2018-12-14 |
Family
ID=64599828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810788124.9A Pending CN108995159A (en) | 2018-07-18 | 2018-07-18 | The cooling structure of mold core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108995159A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990009022A (en) * | 1997-07-07 | 1999-02-05 | 장휘 | Sujeuk type with a cooling rod and its manufacturing method |
| KR100644922B1 (en) * | 2005-08-25 | 2006-11-10 | 강명호 | Mold for injection molding machine having heat transfer member |
| CN201172261Y (en) * | 2008-02-19 | 2008-12-31 | 生桦钢模有限公司 | Indirect cooling structure for mould |
| US20100297287A1 (en) * | 2006-06-16 | 2010-11-25 | Mht Mold & Hotrunner Technology Ag | Mould cavity with decoupled cooling-channel routing |
| WO2013049882A1 (en) * | 2011-10-03 | 2013-04-11 | Modi Consulting And Investments Pty Ltd | Conformal cooling tool with rapid heat cycle performance |
| CN107297866A (en) * | 2016-04-15 | 2017-10-27 | 天津永炬模具有限公司 | A kind of injection mold of uniform fast cooling |
| CN208854991U (en) * | 2018-07-18 | 2019-05-14 | 精英制模实业(深圳)有限公司 | The cooling structure of mold core |
-
2018
- 2018-07-18 CN CN201810788124.9A patent/CN108995159A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990009022A (en) * | 1997-07-07 | 1999-02-05 | 장휘 | Sujeuk type with a cooling rod and its manufacturing method |
| KR100644922B1 (en) * | 2005-08-25 | 2006-11-10 | 강명호 | Mold for injection molding machine having heat transfer member |
| US20100297287A1 (en) * | 2006-06-16 | 2010-11-25 | Mht Mold & Hotrunner Technology Ag | Mould cavity with decoupled cooling-channel routing |
| CN201172261Y (en) * | 2008-02-19 | 2008-12-31 | 生桦钢模有限公司 | Indirect cooling structure for mould |
| WO2013049882A1 (en) * | 2011-10-03 | 2013-04-11 | Modi Consulting And Investments Pty Ltd | Conformal cooling tool with rapid heat cycle performance |
| CN107297866A (en) * | 2016-04-15 | 2017-10-27 | 天津永炬模具有限公司 | A kind of injection mold of uniform fast cooling |
| CN208854991U (en) * | 2018-07-18 | 2019-05-14 | 精英制模实业(深圳)有限公司 | The cooling structure of mold core |
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