CN208854991U - The cooling structure of mold core - Google Patents

The cooling structure of mold core Download PDF

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Publication number
CN208854991U
CN208854991U CN201821149803.3U CN201821149803U CN208854991U CN 208854991 U CN208854991 U CN 208854991U CN 201821149803 U CN201821149803 U CN 201821149803U CN 208854991 U CN208854991 U CN 208854991U
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China
Prior art keywords
mold core
forming part
cooling circuit
cooling
cooling structure
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CN201821149803.3U
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Chinese (zh)
Inventor
陈自保
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Ace Mold Industrial Shenzhen Co Ltd
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Ace Mold Industrial Shenzhen Co Ltd
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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 the mold core of the utility model, 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

The cooling structure of mold core
Technical field
The utility model 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.
Utility model content
The utility model in view of the above technical problems, in order to improve the cooling efficiency and cooling quality of mold core, and reduces Its difficulty of processing 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 of which 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 the mold core of the utility model opens up cooling circuit by the track in mold core along forming part, with Shape transports water, and holding part is arranged to accommodate heat-conducting piece in forming part, and the cooling efficiency and cooling quality of mold core can be improved, and The use of heat-conducting piece can then be such that forming part is directly quickly cooled down by heat-conducting piece, therefore can simplify cooling circuit, reduce and add Work difficulty.
Detailed description of the invention
Fig. 1 (a) is a kind of top view of embodiment of the cooling structure of the mold core of the utility model;
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 the drawings, it elaborates to the utility model.It should be pointed out that the utility model can be with many Different modes are realized, however it is not limited to embodiment described herein, on the contrary, the purpose of providing these embodiments is to make this The technical staff in field is more thorough and comprehensive to content understanding disclosed in the utility model.In the various views of attached drawing, phase Same appended drawing reference 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, It does not need 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 down by heat-conducting piece 4 The refrigerating function in circuit 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 Cooling circuit 2, it is therefore, also very simple in processing, it can be to avoid the various disadvantages of such as processing in the water route of " crown shapes fortune water " End.
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.The utility model Diffusion bonding refer to Diffusion Welding known to ordinary skill in the art, refer to the material surface to contact with each other, It is close to each other under the action of temperature and pressure, it is locally plastically deformed, phase counterdiffusion is generated between atom, is formed newly in interface Diffusion layer, to realize a kind of connection type for 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 in the first engagement It is processed on the surface in portion 51, 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, blind hole is processed into along the axial S of the wall portion 12 of forming part 1, and by copper branch Insertion holding part 3 simultaneously 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 utility model does not say various combinations of possible ways separately It is bright.
Above embodiments are merely to illustrate the technical solution of the utility model and are not intended to limit it, all without departing from this Any modification of utility model range or equivalent replacement should all be included in the technical solution of the utility model.

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 of which 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.
CN201821149803.3U 2018-07-18 2018-07-18 The cooling structure of mold core Active CN208854991U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821149803.3U CN208854991U (en) 2018-07-18 2018-07-18 The cooling structure of mold core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821149803.3U CN208854991U (en) 2018-07-18 2018-07-18 The cooling structure of mold core

Publications (1)

Publication Number Publication Date
CN208854991U true CN208854991U (en) 2019-05-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108995159A (en) * 2018-07-18 2018-12-14 精英制模实业(深圳)有限公司 The cooling structure of mold core
CN108995159B (en) * 2018-07-18 2024-05-17 精英制模实业(深圳)有限公司 Cooling structure of mold core

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108995159A (en) * 2018-07-18 2018-12-14 精英制模实业(深圳)有限公司 The cooling structure of mold core
CN108995159B (en) * 2018-07-18 2024-05-17 精英制模实业(深圳)有限公司 Cooling structure of mold core

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