CN104647696B - A kind of high-gloss injection mold using Electric heating - Google Patents
A kind of high-gloss injection mold using Electric heating Download PDFInfo
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- CN104647696B CN104647696B CN201310608602.0A CN201310608602A CN104647696B CN 104647696 B CN104647696 B CN 104647696B CN 201310608602 A CN201310608602 A CN 201310608602A CN 104647696 B CN104647696 B CN 104647696B
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- injection mold
- heating
- plate
- mold
- gloss
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Classifications
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- 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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- 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
- B29C45/7306—Control circuits therefor
-
- 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
-
- 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
- B29C2045/7368—Heating or cooling of the mould combining a heating or cooling fluid and non-fluid means
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of high-gloss injection mold using Electric heating, is easily designed to solve existing more cast gate injection molds the problems such as product surface produces weld mark.The present invention includes the preceding mould being installed on fixed die plate of injection molding machine and the rear mold being installed on Injection Motor Template using the high-gloss injection mold of Electric heating, also include heating core and the coldplate for being cooled down to injection-molded item, the hot type in-core are embedded with electrical heating elements.The present invention is independently separately carried out using the high-gloss injection mold of Electric heating because it heats and cooled down, therefore the heat transfer efficiency of mould is high, and then improve the production efficiency of the high-gloss injection mold, and the water route in coldplate is only involved in cooling down, therefore integrated design part is not needed, enormously simplify mould structure.
Description
Technical field
The present invention relates to a kind of high-gloss injection mold using Electric heating.
Background technology
High-gloss injection mold technology is mainly used on high-end household appliances and automobile decoration parts, is for letter
Change assembly technology, reduce product postprocessing working procedures, improve a kind of new technique of outward appearance class.The height that die industry uses at present
Gloss mold is mainly steam-type.
Steam heating type bloom weldless trace mold working principle is that straight-through jet chimney is beaten inside preceding mould insert, this
Jet chimney plays a part of heating and cooled down simultaneously, is guided to outside mould by valve and is connected with steam boiler, passes through high-temperature steam
Eliminate weld mark.
The shortcomings that using steam-type mode of heating, is as follows：
1. low production efficiency, mould heating and cooling use same group of water route, and heat exchange coefficient is slow, product injection cycle
It is long.
2. complicated, mould produces at high temperature, water route complex designing, and need to increase the structures such as collection air parcel.
The content of the invention
It is an object of the invention to propose a kind of heat transference efficiency height, the high height using Electric heating of production efficiency
Light injection mold.
Another object of the present invention is to propose a kind of bloom injection mould simple and reliable for structure using Electric heating
Tool.
To use following technical scheme up to this purpose, the present invention：
A kind of high-gloss injection mold using Electric heating, including preceding mould and the peace being installed on fixed die plate of injection molding machine
It is described loaded on the rear mold on Injection Motor Template, in addition to heating core and the coldplate for being cooled down to injection-molded item
Hot type in-core is embedded with electrical heating elements.
Preferably, the preceding mould includes the top plate being fixedly connected with the solid plate and by mouth of a river guide pillar and the top
The front template of plate connection；
The coldplate is fixed on the top plate；
The heating core is fixed on the front template.
Preferably, the electrical heating elements are electrically heated rod, are equipped with four sides of the heating core some
Electrically heated rod.
Preferably, the heating region of the electrically heated rod all stretches into the hot type core inner, and the heating region
The distance between the heating core lateral surface that is penetrated with it of outer edge be more than or equal to 5mm；
The electrically heated rod is more than 2mm apart from the coldplate；
Glue plane 3mm of the electrically heated rod apart from the mould.
Preferably, it is exposed on the front template with the electrically heated rod at the part opposite position outside the heating core
Fixing hole is provided with, screw fixes the electrically heated rod through the fixing hole.
Preferably, the back of the heating core is provided with cooling bath, position corresponding with the cooling bath on the coldplate
Put and be provided with cooling projection, when the high-gloss injection mold matched moulds, the cooling projection is stretched into the cooling bath.
Preferably, it is provided with elastic spacing one between the top plate and front template.
Preferably, the elastic spacing one includes limit pull rod and the spring being fixed on the limit pull rod, when described
When high-gloss injection mold molds, the top plate separates with front template under the elastic force effect of spring, and limits institute by limit pull rod
State the distance that top plate and front template separate.
Preferably, the lock for increasing mold-locked power is provided with the front template on the one side of the rear mold
Tight block.
Preferably, nylon mode locker is provided between the front template and rear mold.
Beneficial effects of the present invention are：
（1）The present invention using being provided with heating core and coldplate in the high-gloss injection mold of Electric heating, heating and
Cooling is independent separately to be carried out, therefore the heat transfer efficiency of mould is high, and then improves the production efficiency of the high-gloss injection mold.
（2）Heated by way of burying electrically heated rod in hot type core inner, the water route in coldplate is only involved in
Cooling, therefore integrated design part is not needed, it enormously simplify mould structure.
（3）The back of heating core is provided with cooling bath, be provided with coldplate on position corresponding with cooling bath cool down it is convex
Block, when the high-gloss injection mold matched moulds, cooling projection is stretched into cooling bath, can effectively improve cooling effectiveness.
（4）Elastic spacing one is provided between top plate and front template, nylon mode locker is provided between front template and rear mold,
When mould molds, top plate separates first with front template in the presence of elastic spacing one, and front template is locked with rear mold in nylon
Lag and separate in the presence of mold, with coldplate be to separate when ensureing heating core heating, the efficiency of heating surface can be effectively improved.
Brief description of the drawings
Fig. 1 is the structural representation for the high-gloss injection mold using Electric heating that the embodiment of the present invention one provides；
Fig. 2 is the front view of mould before the embodiment of the present invention one；
Fig. 3 is Fig. 2 sectional view；
Fig. 4 is that the embodiment of the present invention one heats the positive structural representation of core；
Fig. 5 is the structural representation that the embodiment of the present invention one heats the core back side；
Fig. 6 is the fixed structure schematic diagram of the heating rod of the embodiment of the present invention one；
Fig. 7 is the structural representation of the coldplate of the embodiment of the present invention one；
Fig. 8 is the structural representation of the front template of the embodiment of the present invention one；
Fig. 9 is the arrangement architecture schematic diagram of the heating rod of the embodiment of the present invention one；
Figure 10 is the structural representation of the rear mold of the embodiment of the present invention one.
In figure, 1, solid plate；2nd, preceding mould；21st, top plate；22nd, mouth of a river guide pillar；23rd, front template；231st, top cavity；232、
Bottom cavity；233rd, latch segment；24th, coldplate；241st, projection is cooled down；25th, core is heated；251st, cooling bath；252nd, cavity；
26th, electrically heated rod；27th, limit pull rod；28th, headless screw；3rd, moving platen；4th, rear mold；41st, bottom plate；42nd, needle plate；43rd, square iron；
44th, rear pattern plate；45th, rear mold insert；46th, nylon mode locker.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Embodiment one：
Fig. 1 is structural representation of the present embodiment using the high-gloss injection mold of Electric heating.As illustrated, the bloom
Injection mold includes the preceding mould 2 being installed on fixed die plate of injection molding machine 1 and the rear mold 4 being installed on Injection Motor Template 3.
As shown in Figures 2 and 3, preceding mould 2 includes the top plate 21 being fixedly connected with the solid plate 1 and by mouth of a river guide pillar
22 front templates 23 being connected with the top plate 21, it is fixed with by screw on top plate 21 cold for what is cooled down to injection-molded item
But plate 24, heating core 25 is fixed with by screw on front template 23, heats and be equipped with five on four sides of core 25
Electrically heated rod 26.Elastic spacing one is provided between top plate 21 and front template 23.Elastic spacing one is including limit pull rod 27 and admittedly
Spring on limit pull rod 27, when high-gloss injection mold molds, top plate 21 acts on elastic force of the front template 23 in spring
It is lower to separate, and the distance that top plate 21 separates with front template 23 is limited by limit pull rod 27.
Heat the structure of core 25 as shown in Figure 4 and Figure 5.Core 25 is heated using the material system corrosion-resistant, thermal conductivity is high
Into preferably S136S.Heat the cavity 252 being provided with four sides of core 25 for placing electrically heated rod 26, electrical heating
The heating region of rod 26 is all stretched into the cavity 252, and electrically heated rod 26 is apart from the empty avoiding 1mm of cavity 252, and heating zone
The distance between lateral surface of heating core 25 that the outer edge in domain penetrates with it is more than or equal to 5mm, and electrically heated rod 26 is apart from cooling
Plate 24 is more than 2mm, glue plane 3mm of the electrically heated rod 26 apart from mould.The arrangement situation of electrically heated rod 26 is as shown in Figure 9.Heating
The back of core 25 is provided with cooling bath 251.
The structure of coldplate 24 is as shown in Figure 7.Coldplate 24 is made of the higher material of thermal conductivity, excellent when size is smaller
Choosing uses beryllium copper material, and aluminium is preferably used when size is larger.Cooling water channel is provided with coldplate 24.On coldplate 24 with institute
State and be provided with cooling projection 241 corresponding to cooling bath 251 on position, when the high-gloss injection mold matched moulds, the cooling is convex
Block 241 is stretched into the cooling bath 251 of heating core 25, to improve cooling effectiveness.
Fig. 8 gives the structural representation of front template 23.As illustrated, front template 23 is cavity plate, cavity is included with adding
The top cavity 231 that heat type core 25 coordinates and the bottom cavity 232 with the cooperation of coldplate 24, bottom cavity 232 and coldplate 24
Unilateral empty avoiding 1mm.It is provided with the part opposite position being exposed on front template 23 with electrically heated rod 26 outside heating core 25
Fixing hole, headless screw 28 fix electrically heated rod 26 through fixing hole, and the fixed structure is as shown in Figure 6.Pass through headless screw
28 pairs of electrically heated rods 26 are fixed, and can effectively prevent electrically heated rod 26 from occurring coming off during transport and use to cause to endanger
Danger.The latch segment 233 for increasing mold-locked power, latch segment 233 are provided with front template 23 on the one side of close rear mold 4
It can effectively prevent the mould that rises occur during injection, avoid injection-molded item from producing overlap.
The structure of rear mold 4 is as shown in Figure 10, including bottom plate 41, the pin that is connected with bottom plate 41 being fixedly connected with moving platen 3
Plate 42, the rear pattern plate 44 being connected by square iron 43 with needle plate 42 and the rear mold insert 45 being connected with rear pattern plate 44.Rear pattern plate 44
On be provided with nylon mode locker 46.
The course of work of the mould is：During die sinking, nylon mode locker 46 limits front template 23 and rear pattern plate 44 and separated, and preceding
Template 23 and top plate 21 are separated first under the elastic force effect of spring, when reaching 8mm, due to the position-limiting action of limit pull rod 27
And stop separating, front template 23 and rear pattern plate 44 start to separate, and now, start electrically heated rod 26 and heating core 25 is added
Heat, separated due to now heating core 25 and coldplate 24, therefore the efficiency of heating surface is high.After completing die sinking, in injection machine ejecting force
In the presence of promote needle plate 42 move, injection-molded item is ejected.Start matched moulds after product ejection, meanwhile, electrically heated rod 26 stops
Heat, after matched moulds, injection machine starts to be molded product, and after the completion of injection, coldplate 24 leads to cold water to be carried out to injection-molded item
Cooling, due to 24 logical cold water of coldplate, therefore cooling effectiveness is high, is molded after the completion of cooling, repeats said process.
Because the heating and cooling of the present embodiment high-gloss injection mold are separate from what is carried out, therefore the heat transfer effect of mould
Rate is high, and then improves the production efficiency of the high-gloss injection mold.
Wherein, the structure of elastic spacing one is not limited to limit pull rod and spring, can realize the knot of elastic spacing function
Structure；Heat the electrically heated rod set on every one side of core and be not limited to five, can be set according to real needs；Pair plus
The electrical heating elements of heat type core heating are not limited to electrically heated rod, other elements that can conveniently heat.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (6)
1. a kind of high-gloss injection mold using Electric heating, including the preceding mould (2) being installed on fixed die plate of injection molding machine (1) with
And it is installed on the rear mold (4) on Injection Motor Template (3), it is characterised in that：Also include heating core (25) and for injection
The coldplate (24) that product is cooled down, the heating core (25) is interior to be embedded with electrical heating elements；
The preceding mould (2) includes the top plate (21) being fixedly connected with the solid plate (1) and by mouth of a river guide pillar (22) and institute
State the front template (23) of top plate (21) connection；The coldplate (24) is fixed on the top plate (21)；The heating core
(25) it is fixed on the front template (23)；
Elastic spacing one is provided between the top plate (21) and front template (23), the elastic spacing one includes limit pull rod
(27) and the spring that is fixed on the limit pull rod (27), when the high-gloss injection mold molds, the top plate (21) with
Front template (23) separates under the elastic force effect of spring, and limits the top plate (21) and front template (23) by limit pull rod (27)
Separated distance；
The front template (23) is cavity plate, cavity include the top cavity (231) coordinated with heating core (25) and with cooling
The bottom cavity (232) that plate (24) coordinates；
The back of the heating core (25) is provided with cooling bath (251), right with the cooling bath (251) on the coldplate (24)
Cooling projection (241) is provided with the position answered, when the high-gloss injection mold matched moulds, the cooling projection (241) is stretched into
In the cooling bath (251).
A kind of 2. high-gloss injection mold using Electric heating according to claim 1, it is characterised in that：The electricity adds
Thermal element is electrically heated rod (26), and some electrically heated rods (26) are equipped with four sides of the heating core (25).
A kind of 3. high-gloss injection mold using Electric heating according to claim 2, it is characterised in that：The electricity adds
The heating region of hot pin (26) all stretches into heating core (25) inside, and the outer edge of the heating region penetrates with it
The distance between heating core (25) lateral surface be more than or equal to 5mm；
The electrically heated rod (26) is more than 2mm apart from the coldplate (24)；
Glue plane 3mm of the electrically heated rod (26) apart from the mould.
A kind of 4. high-gloss injection mold using Electric heating according to claim 3, it is characterised in that：The preceding mould
It is exposed on plate (23) with the electrically heated rod (26) at the part opposite position of the heating core (25) outside and is provided with fixation
Hole, screw (28) are fixed by the electrically heated rod (26) through the fixing hole.
A kind of 5. high-gloss injection mold using Electric heating according to claim 1, it is characterised in that：The preceding mould
The latch segment (233) for increasing mold-locked power is provided with plate (23) on the one side of the close rear mold (4).
A kind of 6. high-gloss injection mold using Electric heating according to claim 5, it is characterised in that：The preceding mould
Nylon mode locker (46) is provided between plate (23) and rear mold (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608602.0A CN104647696B (en) | 2013-11-25 | 2013-11-25 | A kind of high-gloss injection mold using Electric heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608602.0A CN104647696B (en) | 2013-11-25 | 2013-11-25 | A kind of high-gloss injection mold using Electric heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104647696A CN104647696A (en) | 2015-05-27 |
| CN104647696B true CN104647696B (en) | 2017-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310608602.0A Active CN104647696B (en) | 2013-11-25 | 2013-11-25 | A kind of high-gloss injection mold using Electric heating |
Country Status (1)
| Country | Link |
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| CN (1) | CN104647696B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105690691A (en) * | 2016-04-20 | 2016-06-22 | 江苏铂英特电子科技有限公司 | Quick-cooling automobile wire harness injection mould |
| CN111716665B (en) * | 2020-07-13 | 2022-01-07 | 常州润邦模塑科技有限公司 | Multifunctional automatic injection mold |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201240042Y (en) * | 2008-07-01 | 2009-05-20 | 广州毅昌科技股份有限公司 | High gloss injection mold |
| CN101531050A (en) * | 2009-04-15 | 2009-09-16 | 林建岳 | An on-off cooling structure electric heating highlight injection mold |
| CN102785338B (en) * | 2012-08-21 | 2014-08-13 | 青岛海信模具有限公司 | Highlight injection mould heating and cooling device and heating and cooling method thereof |
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2013
- 2013-11-25 CN CN201310608602.0A patent/CN104647696B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104647696A (en) | 2015-05-27 |
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Effective date of registration: 20210111 Address after: 266101 Haier Road, Qingdao hi tech Industrial Park, Shandong Province (inside Haier Industrial Park) Patentee after: Qingdao Haier Molds Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee before: QINGDAO HAIER MOLDS Co.,Ltd. Patentee before: HAIER Group Corp. |
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Address after: 266101 Inside Haier Industrial Park, Qingdao High tech Industrial Park, Qingdao, Shandong Province Patentee after: Kaos Mold (Qingdao) Co.,Ltd. Address before: 266101 Haier Road, Qingdao hi tech Industrial Park, Shandong Province (inside Haier Industrial Park) Patentee before: Qingdao Haier Molds Co.,Ltd. |