CN110406052A - With the injection mold for thermally expanding adaptive ejecting mechanism - Google Patents
With the injection mold for thermally expanding adaptive ejecting mechanism Download PDFInfo
- Publication number
- CN110406052A CN110406052A CN201810401682.5A CN201810401682A CN110406052A CN 110406052 A CN110406052 A CN 110406052A CN 201810401682 A CN201810401682 A CN 201810401682A CN 110406052 A CN110406052 A CN 110406052A
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- China
- Prior art keywords
- plate
- hole
- mandril
- temperature control
- accommodating chamber
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of injection mold, including preceding mould and rear mold, rear mold includes rear pattern plate, temperature control plate, rear mold pedestal and ejecting mechanism；Rear pattern plate is equipped with rear model cavity and is through to the first through hole of rear model cavity from bottom；Temperature control plate is set to below rear pattern plate, including heating plate, which is provided with perforative second through-hole, and rear mold pedestal is set to below temperature control plate, interior to have mobile cavity；Ejecting mechanism includes mandril, liftout plate, spring and fixing piece；Mandril top is equipped with the flange extended radially outward；Liftout plate is arranged in mobile cavity and can move up and down in mobile cavity, the interior third through-hole for being equipped with accommodating chamber and being through to accommodating chamber from top；Accommodating chamber is for accommodating spring and fixing piece；Mandril lower end is fixedly connected after sequentially passing through rear model cavity, first through hole, the second through-hole, third through-hole and spring with fixing piece, and flange is fastened on above the temperature control plate bottom wall, and mandril lower end drives fixing piece compressed spring to contradict on accommodating chamber roof.
Description
Technical field
The present invention relates to injection forming mold technical fields, and in particular to a kind of with thermally expanding adaptive ejecting mechanism
Injection mold.
Background technique
Injection mold is a kind of for producing the tool of plasthetics, particular by high pressure by the raw material under molten condition
It injects in the type chamber of injection mold, can be obtained plasthetics through ejecting mechanism ejection after raw material solidification.Injection mold is according to molding
Characteristic is divided into thermoplastic injection mold and thermosetting injection mold, using the process of thermosetting injection mold production injecting products
In, needing the raw material intracavitary to the type that is injected into be heated can just be such that raw material solidifies and then obtain injecting products.Therefore, thermosetting property
It needs that heating device is arranged in injection mold, and is to avoid heat transfer, also need that heat-proof device is arranged in injection mold；Adding
In curing process, the mandril of ejecting mechanism is usually partially in heated condition, and another part is then in state of thermal isolation, due to heat
Bulking effect, this will lead to mandril height and changes a lot, to squeeze product formation, and then influence product structure ruler
Very little, for product higher for precision requirement, this fraction defective that will lead to product is greatly improved.
Summary of the invention
The present invention provides a kind of new injection molds, have the ejecting mechanism of thermal expansion adaptation function by being arranged,
It solves the problems, such as that ejecting mechanism height is heated to change to influence injection molding product structure size.
The purpose of the present invention is to provide a kind of with the injection mold for thermally expanding adaptive ejecting mechanism, for forming heat
Solidity injecting products, the injection mold include preceding mould and rear mold, the rear mold include rear pattern plate, temperature control plate, rear mold pedestal and
Ejecting mechanism；
The rear pattern plate is equipped with rear model cavity and is through to the first through hole of the rear model cavity from bottom；
The temperature control plate is set to below the rear pattern plate, including heating plate, and temperature control plate is equipped with from top and is through to the of bottom
Two through-holes, first through hole described in the second through-hole face；
The rear mold pedestal is set to below the temperature control plate, interior to have mobile cavity；
The ejecting mechanism includes mandril, liftout plate, spring and fixing piece；The mandril has rod-like structure, and top is equipped with edge
The flange to extend radially outwardly；The liftout plate is arranged in the mobile cavity, and can move up and down in the mobile cavity, institute
The third through-hole of the accommodating chamber is stated in liftout plate equipped with accommodating chamber and is through to from top, the described in the third through-hole face
Two through-holes；The spring and fixing piece are set in the accommodating chamber；The mandril lower end sequentially passes through the rear model cavity, first
It is fixedly connected after through-hole, the second through-hole, third through-hole and spring with the fixing piece, the flange of upper part is fastened on the temperature control
Above board bottom wall, lower end drives the fixing piece to compress the spring and contradicts on the roof of the accommodating chamber；
The type chamber for forming the injecting products is formed when molding, between the preceding mould, rear pattern plate and mandril；The heating plate
It is heated for the raw material intracavitary to the injection type, when the mandril is heated, to institute under the elastic force effect of the spring
State the elongation of accommodating chamber bottom wall direction；After die sinking, pushing up the liftout plate can drive the mandril to eject injecting products upwards.
Further, the temperature control plate further includes the thermal insulation board below the heating plate, is had in the heating plate
Second heating plate through-hole, the second thermal insulation board through-hole with the second heating plate through-hole described in face on the thermal insulation board, described the
The second through-hole is formed after two thermal insulation board through-holes and the docking of the second heating plate through-hole.
Further, external screw thread is additionally provided on the side wall of the mandril lower part, the fixing piece is nut, the nut tool
There is the internal screw thread matched with the external screw thread of second bar portion.
Further, the liftout plate includes ejecting panel and the ejection base plate set on the ejection panel bottom, described
Accommodating chamber is between ejection panel and the ejection base plate.
Injection mold provided by the invention, which has, thermally expands adaptive ejecting mechanism, by setting flange and spring, makes
Mandril is obtained while not departing from type chamber, downward pulling force is continuously applied to mandril, so that being heating and curing in injecting products
During, the length of mandril expanded by heating is guided to mandril lower part；It avoids because mandril expanded by heating is to product structure ruler
It is very little to impact, effectively reduce the fraction defective in injecting products production process.
Detailed description of the invention
Fig. 1 is injection mold elevational cross-sectional view in first embodiment of the invention.
Fig. 2 is the explosion elevational cross-sectional view of rear mold in first embodiment of the invention.
Fig. 3 is the partial enlarged view of location A in Fig. 1.
Fig. 4 is the structure chart of mandril and fixing piece in first embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with drawings and the embodiments,
The present invention will be described in further detail.
In this specification, the preceding mould of injection mold is in relatively fixed state, and molding is after mould position facing forward is mobile
Mould, die sinking are towards far from the mobile rear mold in preceding mould direction.The molding direction for defining rear mold is "upper" side, and die sinking direction is "lower" side.
It is to be appreciated that the orientation or positional relationship of the instructions such as "top", "bottom", "upper", "lower" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than for limiting apparatus of the present invention or component is necessary
Distinctive particular orientation or positional relationship.
First embodiment of the invention provides a kind of injection mold with the adaptive ejecting mechanism of thermal expansion, for forming
Heat fixation injecting products 1, as shown in Figures 1 to 4, the injection mold include preceding mould 2 and rear mold 3, and the rear mold 3 includes rear mold
Plate 31, temperature control plate 32, rear mold pedestal 33 and ejecting mechanism 34；
The rear pattern plate 31 is equipped with rear model cavity 311 and is through to the first through hole 312 of the rear model cavity 311 from bottom；
The temperature control plate 32 is set to 31 lower section of rear pattern plate, including heating plate 321, temperature control plate 32 are equipped with and are through to from top
Second through-hole 320 of bottom, first through hole 312 described in 320 face of the second through-hole；
The rear mold pedestal 33 is set to 32 lower section of temperature control plate, interior to have mobile cavity 331；
The ejecting mechanism 34 includes mandril 341, liftout plate 342, spring 343 and fixing piece 344；The mandril 341 has bar
Shape structure, upper part are equipped with the flange extended radially outward；The liftout plate 342 is arranged in the mobile cavity 331, and can
It is moved up and down in the mobile cavity 331, accommodating chamber 3420 is equipped in the liftout plate 342 and is through to the receiving from top
The third through-hole of chamber 3420, the second through-hole 320 described in the third through-hole face；It the spring 343 and is set to for fixing piece 344 times
In the accommodating chamber 3420；
341 lower end of mandril sequentially pass through it is described after model cavity 311, first through hole 312, the second through-hole 320, third through-hole and
It being fixedly connected after spring 343 with the fixing piece 344, the flange of upper part is fastened on above 32 bottom wall of temperature control plate, under
End drives the fixing piece 344 to compress the spring 343 and contradicts on the roof of the accommodating chamber 3420；
The type chamber for forming the injecting products 1 is formed when molding, between the preceding mould 2, rear pattern plate 31 and mandril 341；Institute
State heating plate 321 for be injected into the intracavitary raw material of the type carry out heating make its solidification, when the mandril 341 is heated, In
It is extended under the elastic force effect of the spring 343 to the 3420 bottom wall direction of accommodating chamber；After die sinking, the liftout plate is pushed up
342 can drive the mandril 341 ejection injecting products 1 upwards.
The present invention is by setting flange and spring so that mandril is not while departing from type chamber, to mandril be continuously applied to
Under pulling force so that the length of mandril expanded by heating is guided to mandril during injecting products are heating and curing
Portion；It avoids and product structure size is impacted because of mandril expanded by heating, effectively reduce in injecting products production process
Fraction defective.
Further, the temperature control plate 32 further includes the thermal insulation board 322 set on 321 lower section of heating plate, the heating
There is the second heating plate through-hole 3201 on plate 321, there is the second heating plate through-hole 3201 described in face on the thermal insulation board 322
It is logical that second is formed after second thermal insulation board through-hole 3202, the second thermal insulation board through-hole 3202 and the docking of the second heating plate through-hole 3201
Hole 320.This programme can be avoided effectively during being heating and curing to injecting products by setting thermal insulation board to rear mold bottom
Other component in seat impacts.
Further, in the present invention, the mandril 341 includes the first bar portion 3411 and is connected to below the first bar portion 3411
The second bar portion 3412；Wherein, the size of the first bar portion 3411 is greater than the size of the second bar portion 3412, so that on the top
Flange is formed at the top of bar 341.The push rod structure of this programme is simple, reduces difficulty of processing.
It should be noted that in the present invention, the card of the flange bottom end sets position and has no specifically limited, need to only be located at described
Above 342 bottom wall of thermal insulation board.In the present embodiment, the flange bottom wall is fastened on the roof of the heating plate 341.
Further, external screw thread is additionally provided on the side wall of 3412 lower part of the second bar portion, the fixing piece 344 is spiral shell
Cap, the nut have the internal screw thread matched with the external screw thread of second bar portion 3412.In the present solution, passing through the outer spiral shell
The effect of being screwed on of line and internal screw thread is, it can be achieved that the lower end of the mandril 341 and being fixedly connected for fixing piece 344.
Further, the liftout plate 342 includes ejection panel 3421 and the top set on ejection 3421 bottom of panel
Bottom plate 3422 out, the accommodating chamber 3420 is between the ejection panel 3421 and ejection base plate 3422.In the present solution, described
The bottom wall for ejecting panel 3421 is equipped with groove, after the ejection panel 3421 and ejection base plate 3422 are docked, the groove with
The bottom wall of the ejection base plate forms accommodating chamber 3420.This programme is conducive to the installation settings of spring and fixing piece, reduces note
The difficulty of processing of mould.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within spirit and principle.
Claims (4)
1. a kind of with the injection mold for thermally expanding adaptive ejecting mechanism, for forming thermosetting property injecting products, feature exists
In the injection mold includes preceding mould and rear mold, and the rear mold includes rear pattern plate, temperature control plate, rear mold pedestal and ejecting mechanism；
The rear pattern plate is equipped with rear model cavity and is through to the first through hole of the rear model cavity from bottom；
The temperature control plate is set to below the rear pattern plate, including heating plate, and temperature control plate is equipped with from top and is through to the of bottom
Two through-holes, first through hole described in the second through-hole face；
The rear mold pedestal is set to below the temperature control plate, interior to have mobile cavity；
The ejecting mechanism includes mandril, liftout plate, spring and fixing piece；The mandril has rod-like structure, and top is equipped with edge
The flange to extend radially outwardly；The liftout plate is arranged in the mobile cavity, and can move up and down in the mobile cavity, institute
The third through-hole of the accommodating chamber is stated in liftout plate equipped with accommodating chamber and is through to from top, the described in the third through-hole face
Two through-holes；The spring and fixing piece are set in the accommodating chamber；The mandril lower end sequentially passes through the rear model cavity, first
It is fixedly connected after through-hole, the second through-hole, third through-hole and spring with the fixing piece, the flange of upper part is fastened on the temperature control
Above board bottom wall, lower end drives the fixing piece to compress the spring and contradicts on the roof of the accommodating chamber；
The type chamber for forming the injecting products is formed when molding, between the preceding mould, rear pattern plate and mandril；The heating plate
It is heated for the raw material intracavitary to the injection type, when the mandril is heated, to institute under the elastic force effect of the spring
State the elongation of accommodating chamber bottom wall direction；After die sinking, pushing up the liftout plate can drive the mandril to eject injecting products upwards.
2. according to claim 1 have the injection mold for thermally expanding adaptive ejecting mechanism, which is characterized in that the temperature
Control plate further includes the thermal insulation board below the heating plate, has the second heating plate through-hole in the heating plate, described heat-insulated
The second thermal insulation board through-hole with the second heating plate through-hole described in face on plate, the second thermal insulation board through-hole and the second heating plate
The second through-hole is formed after through-hole docking.
3. according to claim 1 have the injection mold for thermally expanding adaptive ejecting mechanism, which is characterized in that the top
External screw thread is additionally provided on the side wall of bar lower part, the fixing piece is nut, and the nut has the outer spiral shell with second bar portion
The internal screw thread that line matches.
4. according to claim 1 have the injection mold for thermally expanding adaptive ejecting mechanism, which is characterized in that the top
Ejecting plate include eject panel and set on it is described ejection panel bottom ejection base plate, the accommodating chamber be located at the ejection panel with
Between ejection base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401682.5A CN110406052B (en) | 2018-04-28 | 2018-04-28 | Injection mold with thermal expansion self-adaptive ejection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401682.5A CN110406052B (en) | 2018-04-28 | 2018-04-28 | Injection mold with thermal expansion self-adaptive ejection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110406052A true CN110406052A (en) | 2019-11-05 |
| CN110406052B CN110406052B (en) | 2021-09-17 |
Family
ID=68357330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810401682.5A Active CN110406052B (en) | 2018-04-28 | 2018-04-28 | Injection mold with thermal expansion self-adaptive ejection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110406052B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0985783A (en) * | 1995-09-27 | 1997-03-31 | Mazda Motor Corp | Injection molding apparatus |
| CN101913233A (en) * | 2010-08-10 | 2010-12-15 | 冠捷显示科技（厦门）有限公司 | Demoulding device with spring-piece type tapered pin anti-breaking mechanism |
| CN202016178U (en) * | 2011-04-02 | 2011-10-26 | 毅昌金型（东莞）五金制品有限公司 | Inclined ejector device for injection mould |
-
2018
- 2018-04-28 CN CN201810401682.5A patent/CN110406052B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0985783A (en) * | 1995-09-27 | 1997-03-31 | Mazda Motor Corp | Injection molding apparatus |
| CN101913233A (en) * | 2010-08-10 | 2010-12-15 | 冠捷显示科技（厦门）有限公司 | Demoulding device with spring-piece type tapered pin anti-breaking mechanism |
| CN202016178U (en) * | 2011-04-02 | 2011-10-26 | 毅昌金型（东莞）五金制品有限公司 | Inclined ejector device for injection mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110406052B (en) | 2021-09-17 |
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| SE01 | Entry into force of request for substantive examination | ||
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Address after: Longgang District of Shenzhen City, Guangdong province 518116 Longgang Street Community 6 new road bridge Baolong Baolong Industrial Park building B building 1-3 floor Applicant after: Shenzhen meimeimeichuangyi Medical Technology Co., Ltd Address before: Longgang District of Shenzhen City, Guangdong province 518116 Longgang Street Community 6 new road bridge Baolong Baolong Industrial Park building B building 1-3 floor Applicant before: MEHOW INNOVATIVE Ltd. |
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| GR01 | Patent grant |