CN104647696A - Specular injection mould adopting electrical heating way - Google Patents
Specular injection mould adopting electrical heating way Download PDFInfo
- Publication number
- CN104647696A CN104647696A CN201310608602.0A CN201310608602A CN104647696A CN 104647696 A CN104647696 A CN 104647696A CN 201310608602 A CN201310608602 A CN 201310608602A CN 104647696 A CN104647696 A CN 104647696A
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- CN
- China
- Prior art keywords
- mould
- injection mold
- heating
- electrically heated
- electric heating
- 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.)
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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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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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
- B29C45/17—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
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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
- B29C45/17—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
Landscapes
- 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 specular injection mould adopting an electrical heating way, mainly aiming at solving the problems that after an existing multi-sprue injection mould is used, weld marks are easily generated in the surface of a product, and the like. The specular injection mould adopting the electrical heating way comprises a front mould arranged on a fixed mould plate of an injection molding machine, a rear mould arranged on a movable mould plate of the injection molding machine, a heating mold core, and a cooling plate used for cooling injection molded products; an electrical heating element is buried in the heating mold core. According to the specular injection mould adopting the electrical heating way, heating and cooling are independently and separately carried out, so that the heat transfer efficiency of the mould is high, and the production efficiency of the specular injection mould is further improved; furthermore, a water way in the cooling plate only takes part in cooling, so that an integrated part does not need to be designed, and the structure of the mould is greatly simplified.
Description
Technical field
The present invention relates to a kind of high-gloss injection mold adopting Electric heating.
Background technology
High-gloss injection mold technology is mainly used on high-end household appliances and automobile decoration parts, is to simplify assembly technology, reduces product postprocessing working procedures, improves a kind of new technique of outward appearance class.The high gloss mold that current die industry adopts is mainly steam-type.
Steam heating type height light weldless trace mold work principle beats straight-through jet chimney in front mould insert inside, and this jet chimney plays the effect of heating and cooling simultaneously, guided to outside mould and be connected with steam boiler, eliminate weld mark by high-temperature steam by valve.
Adopt the shortcoming of steam-type mode of heating as follows:
1. production efficiency is low, and mold heated and cooling adopt same group of water route, and heat exchange coefficient is slow, and product injection cycle is long.
2. complex structure, mould is at high temperature produced, and water route design is complicated, and need increase the structures such as gas collection block.
Summary of the invention
An object of the present invention is the high-gloss injection mold proposing the employing Electric heating that a kind of heat transference efficiency is high, production efficiency is high.
Another object of the present invention is the high-gloss injection mold proposing a kind of employing Electric heating simple and reliable for structure.
For reaching this object, the present invention by the following technical solutions:
A kind of high-gloss injection mold adopting Electric heating, comprise the front mould be installed on fixed die plate of injection molding machine and the rear mold be installed on Injection Motor Template, also comprise heating core and the coldplate for cooling injection-molded item, described hot type in-core is embedded with electrical heating elements.
Preferably, described front mould comprises the top board be fixedly connected with described solid plate and the front template be connected with described top board by mouth of a river guide pillar;
Described coldplate is fixed on described top board;
Described heating core is fixed on described front template.
Preferably, described electrical heating elements is electrically heated rod, and four sides of described heating core are all equipped with some electrically heated rods.
Preferably, the heating region of described electrically heated rod all stretches into described hot type core inner, and the distance between the outer edge of described heating region and its heating core lateral surface penetrated is more than or equal to 5mm;
Described electrically heated rod is greater than 2mm apart from described coldplate;
Described electrically heated rod is apart from the glue plane 3mm of described mould.
Preferably, on described front template, the part opposite position place be exposed to described electrically heated rod outside described heating core is provided with fixing hole, and described electrically heated rod is fixed through described fixing hole by screw.
Preferably, the back of described heating core is provided with cooling bath, position corresponding with described cooling bath on described coldplate is provided with cooling projection, and when described high-gloss injection mold matched moulds, described cooling projection stretches in described cooling bath.
Preferably, elastic spacing one is provided with between described top board and front template.
Preferably, described elastic spacing one comprises limit pull rod and is fixed on the spring on described limit pull rod, when described high-gloss injection mold die sinking, described top board separates under the elastic force effect of spring with front template, and limits by limit pull rod the distance that described top board separates with front template.
Preferably, described front template is provided with on a side of described rear mold the latch segment for increasing mold-locked power.
Preferably, nylon mode locker is provided with between described front template and rear mold.
Beneficial effect of the present invention is:
(1) the present invention adopts in the high-gloss injection mold of Electric heating and is provided with heating core and coldplate, and heating and cooling are independent separately to be carried out, and therefore the heat transfer efficiency of mould is high, and then improves the production efficiency of this high-gloss injection mold.
(2) mode by burying electrically heated rod underground at hot type core inner heats, and the water route in coldplate only participates in cooling, does not therefore need integrated design part, enormously simplify mould structure.
(3) back of heating core is provided with cooling bath, position corresponding with cooling bath on coldplate is provided with cooling projection, and when described high-gloss injection mold matched moulds, cooling projection stretches in cooling bath, effectively can improve cooling effectiveness.
(4) elastic spacing one is provided with between top board and front template, nylon mode locker is provided with between front template and rear mold, when mould die sinking, first top board separates under the effect of elastic spacing one with front template, and front template and rear mold are delayed under the effect of nylon mode locker separates, be what to separate with coldplate when ensureing the heating of heating core, effectively can improve the efficiency of heating surface.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high-gloss injection mold of the employing Electric heating that the embodiment of the present invention one provides;
Fig. 2 is the front view of the embodiment of the present invention one front mould;
Fig. 3 is the sectional view of Fig. 2;
Fig. 4 is the structural representation that the embodiment of the present invention one heats core front;
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 embodiment of the present invention one heating rod;
Fig. 7 is the structural representation of the embodiment of the present invention one coldplate;
Fig. 8 is the structural representation of the embodiment of the present invention one front template;
Fig. 9 is the arrangement architecture schematic diagram of the embodiment of the present invention one heating rod;
Figure 10 is the structural representation of the embodiment of the present invention one rear mold.
In figure, 1, solid plate; 2, front mould; 21, top board; 22, mouth of a river guide pillar; 23, front template; 231, top cavity; 232, bottom cavity; 233, latch segment; 24, coldplate; 241, projection is cooled; 25, core is heated; 251, cooling bath; 252, cavity; 26, electrically heated rod; 27, limit pull rod; 28, headless screw; 3, moving platen; 4, rear mold; 41, base plate; 42, needle plate; 43, square iron; 44, rear pattern plate; 45, rear mold insert; 46, nylon mode locker.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
Embodiment one:
Fig. 1 is the structural representation that the present embodiment adopts the high-gloss injection mold of Electric heating.As shown in the figure, this high-gloss injection mold comprises the front mould 2 be installed on fixed die plate of injection molding machine 1 and the rear mold 4 be installed on Injection Motor Template 3.
As shown in Figures 2 and 3, front mould 2 comprises the top board 21 be fixedly connected with described solid plate 1 and the front template 23 be connected with described top board 21 by mouth of a river guide pillar 22, top board 21 is fixed with the coldplate 24 for cooling injection-molded item by screw, front template 23 is fixed with heating core 25 by screw, four sides of heating core 25 are all equipped with five electrically heated rods 26.Elastic spacing one is provided with between top board 21 and front template 23.Elastic spacing one comprises limit pull rod 27 and is fixed on the spring on limit pull rod 27, and when high-gloss injection mold die sinking, top board 21 separates under the elastic force effect of spring with front template 23, and limits by limit pull rod 27 distance that top board 21 separates with front template 23.
The structure of heating core 25 as shown in Figure 4 and Figure 5.Heating core 25 adopts corrosion-resistant, that thermal conductivity is high material to make, and is preferably S136S.Four sides of heating core 25 all have the cavity 252 for placing electrically heated rod 26, the heating region of electrically heated rod 26 all stretches in described cavity 252, electrically heated rod 26 is apart from described cavity 252 empty avoiding 1mm, and the distance between the outer edge of heating region and its heating core 25 lateral surface penetrated is more than or equal to 5mm, electrically heated rod 26 is greater than 2mm apart from coldplate 24, and electrically heated rod 26 is apart from the glue plane 3mm of mould.The arrangement situation of electrically heated rod 26 as shown in Figure 9.The back of heating core 25 is provided with cooling bath 251.
The structure of coldplate 24 as shown in Figure 7.The material that coldplate 24 adopts thermal conductivity higher is made, and preferably adopts beryllium copper material when size is less, preferably adopts aluminium when size is larger.Cooling water channel is provided with in coldplate 24.Position corresponding with described cooling bath 251 on coldplate 24 is provided with and cools projection 241, when described high-gloss injection mold matched moulds, described cooling projection 241 stretches in the cooling bath 251 of heating core 25, to improve cooling effectiveness.
Fig. 8 gives the structural representation of front template 23.As shown in the figure, front template 23 is cavity plate, and cavity comprises the top cavity 231 coordinated with heating core 25 and the bottom cavity 232 coordinated with coldplate 24, bottom cavity 232 and the monolateral empty avoiding 1mm of coldplate 24.Front template 23 is exposed to electrically heated rod 26 the part opposite position place of heating outside core 25 and is provided with fixing hole, electrically heated rod 26 is fixed through fixing hole by headless screw 28, and this fixed structure as shown in Figure 6.Be fixed by headless screw 28 pairs of electrically heated rods 26, can effectively prevent electrically heated rod 26 from occurring coming off and cause danger in transport and use procedure.Front template 23 is provided with on a side of rear mold 4 latch segment 233 for increasing mold-locked power, latch segment 233 can effectively prevent from occurring the mould that rises during injection moulding, avoids injection-molded item to produce overlap.
The structure of rear mold 4 as shown in Figure 10, comprises the base plate 41 be fixedly connected with moving platen 3, the needle plate 42 be connected with base plate 41, the rear pattern plate 44 be connected with needle plate 42 by square iron 43 and the rear mold insert 45 be connected with rear pattern plate 44.Rear pattern plate 44 is provided with nylon mode locker 46.
The course of work of this mould is: during die sinking, nylon mode locker 46 limits front template 23 and rear pattern plate 44 separates, and first front template 23 and top board 21 separate under the elastic force effect of spring, when reaching 8mm, stop separately due to the position-limiting action of limit pull rod 27, front template 23 and rear pattern plate 44 start separately, now, start electrically heated rod 26 to heat heating core 25, separate with coldplate 24 owing to now heating core 25, therefore the efficiency of heating surface is high.After completing die sinking, under the effect of injection machine ejecting force, promote needle plate 42 move, injection-molded item is ejected.Goods eject rear beginning matched moulds, simultaneously, electrically heated rod 26 stops heating, and after matched moulds, injection machine starts to carry out injection moulding to goods, after injection moulding completes, coldplate 24 leads to cold water and cools injection-molded item, and due to coldplate 24 logical cold water, therefore cooling effectiveness is high, carry out die sinking after having cooled, repeat said process.
Heating and cooling due to the present embodiment high-gloss injection mold independently separately carry out, and therefore the heat transfer efficiency of mould is high, and then improves the production efficiency of this high-gloss injection mold.
Wherein, the structure of elastic spacing one is not limited to limit pull rod and spring, can realize the structure of elastic spacing function; The electrically heated rod that each side of heating core is arranged is not limited to five, can set according to real needs; Electrically heated rod is not limited to, other elements that can conveniently heat to the electrical heating elements of heating core heating.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. one kind adopts the high-gloss injection mold of Electric heating, comprise the front mould (2) be installed on fixed die plate of injection molding machine (1) and the rear mold (4) be installed on Injection Motor Template (3), it is characterized in that: also comprising heating core (25) and the coldplate (24) for cooling injection-molded item, in described heating core (25), being embedded with electrical heating elements (26).
2. a kind of high-gloss injection mold adopting Electric heating according to claim 1, is characterized in that: described front mould (2) comprises the top board (21) be fixedly connected with described solid plate (1) and the front template (23) be connected with described top board (21) by mouth of a river guide pillar (22);
Described coldplate (24) is fixed on described top board (21);
Described heating core (25) is fixed on described front template (23).
3. a kind of high-gloss injection mold adopting Electric heating according to claim 2, it is characterized in that: described electrical heating elements (26) is electrically heated rod (26), and four sides of described heating core (25) are all equipped with some electrically heated rods (26).
4. a kind of high-gloss injection mold adopting Electric heating according to claim 3, it is characterized in that: the heating region of described electrically heated rod (26) all stretches into described heating core (25) inside, and the distance between the outer edge of described heating region and its heating core (25) lateral surface penetrated is more than or equal to 5mm;
Described electrically heated rod (26) is greater than 2mm apart from described coldplate (24);
Described electrically heated rod (26) is apart from the glue plane 3mm of described mould.
5. a kind of high-gloss injection mold adopting Electric heating according to claim 3 or 4, it is characterized in that: described front template (23) is above exposed to described heating core (25) part opposite position place outward with described electrically heated rod (26) and is provided with fixing hole, described electrically heated rod (26) is fixed through described fixing hole by screw (28).
6. a kind of high-gloss injection mold adopting Electric heating according to claim 2, it is characterized in that: the back of described heating core (25) is provided with cooling bath (251), the upper position corresponding with described cooling bath (251) of described coldplate (24) is provided with and cools projection (241), when described high-gloss injection mold matched moulds, described cooling projection (241) is stretched in described cooling bath (251).
7. a kind of high-gloss injection mold adopting Electric heating according to claim 2, is characterized in that: be provided with elastic spacing one between described top board (21) and front template (23).
8. a kind of high-gloss injection mold adopting Electric heating according to claim 7, it is characterized in that: the spring that described elastic spacing one comprises limit pull rod (27) and is fixed on described limit pull rod (27), when described high-gloss injection mold die sinking, described top board (21) separates under the elastic force effect of spring with front template (23), and limits by limit pull rod (27) distance that described top board (21) separates with front template (23).
9. a kind of high-gloss injection mold adopting Electric heating according to claim 2, is characterized in that: the upper latch segment (233) be provided with on a side of described rear mold (4) for increasing mold-locked power of described front template (23).
10. a kind of high-gloss injection mold adopting Electric heating according to any one of claim 7 to 9, is characterized in that: be provided with nylon mode locker (46) between described front template (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 true CN104647696A (en) | 2015-05-27 |
| CN104647696B CN104647696B (en) | 2017-12-01 |
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| 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 |
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Cited By (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 |
| CN111716665A (en) * | 2020-07-13 | 2020-09-29 | 于金洋 | Multifunctional automatic injection mold |
Citations (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 |
| CN102785338A (en) * | 2012-08-21 | 2012-11-21 | 青岛海信模具有限公司 | Highlight injection mould heating and cooling device and heating and cooling method thereof |
-
2013
- 2013-11-25 CN CN201310608602.0A patent/CN104647696B/en active Active
Patent Citations (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 |
| CN102785338A (en) * | 2012-08-21 | 2012-11-21 | 青岛海信模具有限公司 | Highlight injection mould heating and cooling device and heating and cooling method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘华刚: "《模具制造技术》", 30 June 2006, 北京：机械工业出版社 * |
Cited By (3)
| 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 |
| CN111716665A (en) * | 2020-07-13 | 2020-09-29 | 于金洋 | Multifunctional automatic injection mold |
| CN111716665B (en) * | 2020-07-13 | 2022-01-07 | 常州润邦模塑科技有限公司 | Multifunctional automatic injection mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104647696B (en) | 2017-12-01 |
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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. |
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