CN108973028A - A kind of injection mold and injection molding apparatus - Google Patents
A kind of injection mold and injection molding apparatus Download PDFInfo
- Publication number
- CN108973028A CN108973028A CN201811107898.7A CN201811107898A CN108973028A CN 108973028 A CN108973028 A CN 108973028A CN 201811107898 A CN201811107898 A CN 201811107898A CN 108973028 A CN108973028 A CN 108973028A
- Authority
- CN
- China
- Prior art keywords
- thimble
- gasket
- dynamic model
- cover half
- injection mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2608—Mould seals
-
- 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
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
-
- 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
-
- 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
- B29C2045/4015—Ejector pins provided with sealing means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to injection molding technology field more particularly to a kind of injection molds and injection molding apparatus.Injection mold includes: cover half component, dynamic model component, thimble and gasket.Cover half component includes cover half, and cover half has the first type chamber；Dynamic model component and cover half component cooperate and including dynamic models, and dynamic model has second type chamber, and second type chamber and the cooperation of the first type chamber are to form the die cavity for injection molding product；Thimble connects dynamic model and for injecting products to be ejected die cavity and are at least arranged one；Gasket connects dynamic model and for sealing thimble and dynamic model, and gasket is made of elasticity and telescopic material.The present invention can be used gasket and be sealed thimble and dynamic model, prevent the forced air in die cavity from leaking, and be conducive to subsequent extrusion forming.
Description
Technical field
The present invention relates to injection molding technology field more particularly to a kind of injection molds and injection molding apparatus.
Background technique
Currently, injection molding is the plastic cement fluid for injecting molten state into die cavity under stress, and make its solidification to be formed
Injecting products.Again by the movement of thimble, so that injecting products are ejected from die cavity.
In general, intercommunicating pore is opened up on dynamic model for thimble is arranged, and thimble can be moved to mold cavity, with top
Injecting products out.After injecting plastic cement fluid into die cavity, then forced air is injected into die cavity, be sufficient filling with plastic cement fluid
Die cavity, but forced air can be revealed by the gap between thimble and intercommunicating pore, to be unfavorable for injection molding.
To solve above-mentioned air leakage problem, some meetings filling silicon oil around thimble, but when used for a long time, silicon
There are the limitations that sealing characteristics are difficult to keep for oil.
Summary of the invention
The purpose of the present invention is to provide a kind of injection molds, it is intended to solve the problems, such as how to seal thimble and dynamic model.
The invention is realized in this way a kind of injection mold, for plastic cement fluid to be shaped to injecting products, comprising:
Cover half component, the cover half component includes cover half, and the cover half has the first type chamber；
Dynamic model component, the dynamic model component and the cover half component cooperate and including dynamic models, and the dynamic model has second type
Chamber, the second type chamber and the first type chamber cooperate to form the die cavity for injection molding product；
Thimble, the thimble connect the dynamic model and for injecting products to be ejected the die cavity and are at least arranged one；
Gasket, the gasket connect the dynamic model and for sealing the thimble and the dynamic model, the gasket
It is made of elasticity and telescopic material；
Wherein, the intercommunicating pore that the dynamic model at least offers connection die cavity and passes through for the thimble, it is described
For dynamic model between the gasket and the cover half, the gasket covers and seals the aperture of the intercommunicating pore, the top
It pierces through the gasket and extends into the intercommunicating pore in one end of needle.
Further, the gasket offers the sealing hole passed through for the thimble, and the aperture of the sealing hole is less than
The hole wall of the outer diameter of the thimble, the sealing hole is shunk in the outer surface of the thimble.
Further, the aperture of the intercommunicating pore is equal with the outer diameter of the thimble.
Further, the dynamic model offers accommodating cavity, and the intercommunicating pore is opened in the bottom of chamber of the accommodating cavity, described close
Packing is in sealing the intercommunicating pore in the accommodating cavity.
Further, the injection mold further includes multiple screws, each screw arranged for interval and for will be described close
Packing is screw-locked at the bottom of chamber of the accommodating cavity.
Further, the dynamic model component further includes the support plate positioned at the accommodating cavity, described in the support plate connection
The other end of thimble, the gasket is between the support plate and the bottom of chamber of the accommodating cavity, and the support plate is towards described
The bottom of chamber of accommodating cavity squeezes the gasket.
Further, there are three the intercommunicating pore opens up, the thimble, each top are provided in each intercommunicating pore
The other end of needle is all connected with the support plate.
Further, the injection mold further includes for the air pressure of offer compressed air into die cavity and adding
Pressure pipeline, described capstan one end connect the pressurizer, and the capstan other end is connected to the die cavity.
Further, the other end of the capstan is connected to the die cavity at the cover half.
Further, the present invention also provides a kind of injection molding apparatus comprising injection mold as described above and
For pouring the feeding mechanism of mould-injection fluid into the die cavity, the feeding mechanism connects the cover half.
The solution have the advantages that: by opened up on dynamic model connection die cavity intercommunicating pore, by gasket covering and it is close
The aperture of intercommunicating pore is sealed, then the gasket is pierced through into one end of thimble and extends into intercommunicating pore.Since gasket is by bullet
Property and the contractile material of tool be made, gasket is wrapped in the outer surface of thimble, and achievees the effect that seal thimble, to make
Gap between thimble and dynamic model is sealed, it is therefore prevented that the air in die cavity leaks.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of injection mold provided by the embodiment of the present invention.
Numbering in the drawing relationship corresponding with title is as follows:
100, injection mold；11, cover half；13, dynamic model；10, die cavity；14, a cast runner；21, feeding mechanism；50, air
Pressurizer；51, capstan；18, air supply channel；40, gasket；33, support plate；31, thimble；41, sealing hole；16, it is connected to
Hole；
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Referring to Fig. 1, the embodiment of the invention provides a kind of injection mold 100 and with its injection molding apparatus
(figure is not drawn).
Injection mold 100 is used to plastic cement fluid being shaped to injecting products, and injection mold 100 includes: cover half component, dynamic model
Component, thimble 31 and gasket 40.
Cover half component includes cover half 11, and cover half 11 has the first type chamber.Specifically, cover half component further includes solid plate, fixed
Template is for installing cover half 11.
Dynamic model component and cover half component cooperate and including dynamic models 13, and dynamic model 13 has second type chamber, second type chamber and first
Type chamber cooperates to form the die cavity 10 for injection molding product.Dynamic model component further includes moving template, moving template and solid plate phase
To setting, moving template is for installing dynamic model 13.
Thimble 31 connects dynamic model 13 and for injecting products to be ejected die cavity 10 and are at least arranged one.Optionally, thimble
31 material is high-speed steel and is heat-treated.
Referring to Fig. 1, gasket 40 connects dynamic model 13 and for sealing thimble 31 and dynamic model 13, gasket 40 by elastic and
Telescopic material is made.Specifically, the material of gasket 40 can be rubber, flexible PVC or silica gel.It is close in the present embodiment
The material of packing 40 is silica gel, and gasket 40 made of silica gel has chemical property stable, nonflammable and strong adsorption force
Feature.The strong adsorption capacity of gasket 40 can be such that gasket 40 fits closely in 13 surface of dynamic model.
Specifically, the intercommunicating pore 16 that dynamic model 13 at least offers a connection die cavity 10 and passes through for thimble 31, dynamic model 13
Between gasket 40 and cover half 11, gasket 40 covers and seals the aperture of intercommunicating pore 16, and one end of thimble 31 is pierced through close
Packing 40 simultaneously extends into intercommunicating pore 16.
By opening up the intercommunicating pore 16 of connection die cavity 10 on dynamic model 13, gasket 40 is covered and seals intercommunicating pore 16
Aperture, then the gasket 40 is pierced through into one end of thimble 31 and extends into intercommunicating pore 16.Since gasket 40 is by elasticity
And the contractile material of tool is made, gasket 40 is wrapped in the outer surface of thimble 31, and achievees the effect that seal thimble 31, from
And seal the gap between thimble 31 and dynamic model 13, it is therefore prevented that the air in die cavity 10 leaks.
Gasket 40 offers the sealing hole 41 passed through for thimble 31, and the aperture of sealing hole 41 is less than the outer diameter of thimble 31,
The hole wall of sealing hole 41 is shunk in the outer surface of thimble 31.Specifically, the aperture at any one place of sealing hole 41 is respectively less than thimble
The outer diameter at 31 any one places, so that the hole wall of sealing hole 41 can tightly be shunk in thimble when thimble 31 passes through sealing hole 41
31 outer surface, to achieve the effect that seal thimble 31.
Referring to Fig. 1, the aperture of intercommunicating pore 16 is equal with the outer diameter of thimble 31.Optionally, thimble 31 in intercommunicating pore 16 it
Between can be assembled using transition fit so that thimble 31 can slide in intercommunicating pore 16, thus by injecting products launch mode
Chamber 10.
Dynamic model 13 offers accommodating cavity, and intercommunicating pore 16 is opened in the bottom of chamber of accommodating cavity, and gasket 40 in accommodating cavity in sealing
Intercommunicating pore 16.Gasket 40 is arranged in accommodating cavity, injection mold 100 can be made to minimize, improves the tight of injection mold 100
Gathering property.
Injection mold 100 further includes multiple screws, each screw arranged for interval and for gasket 40 to be screw-locked at accommodating cavity
Bottom of chamber.Gasket 40 carried out by screw detachably connected with dynamic model 13, facilitates subsequent maintenance and replacement.Other
In embodiment, gasket 40 can also be adhesive in the bottom of chamber of accommodating cavity, equally can achieve the effect of sealing intercommunicating pore 16.
Referring to Fig. 1, dynamic model component further includes the support plate 33 positioned at accommodating cavity, support plate 33 connects the another of thimble 31
End, for gasket 40 between support plate 33 and the bottom of chamber of accommodating cavity, support plate 33 squeezes gasket 40 towards the bottom of chamber of accommodating cavity.
Extruding by support plate 33 to gasket 40 not only makes gasket 40 fit closely the bottom of chamber of accommodating cavity, and makes gasket
40 opposite thimbles 31 generate bigger deformation, make the peripheral surface of the even closer package thimble 31 of the hole wall of sealing hole 41, finally
Improve the sealing effect to thimble 31 and intercommunicating pore 16.
There are three intercommunicating pore 16 opens up, thimble 31 is provided in each intercommunicating pore 16, the other end of each thimble 31 is all connected with
Support plate 33.Support plate 33 can reinforce the sealing effect of three thimbles 31 simultaneously, and by driving support plate 33 may be implemented
It is moved while three thimble 31.
Referring to Fig. 1, injection mold 100 further include for into die cavity 10 provide compressed air air pressure 50 with
And capstan 51, one end of capstan 51 connect pressurizer, the other end of capstan 51 is connected to die cavity 10.Capstan
51 are connected to die cavity 10 at cover half 11.Specifically, the connection die cavity 10 and the capstan 51 are offered on cover half 11
Air supply channel 18.One end of capstan 51 connects cover half 11 at air supply channel 18.
After plastic cement fluid injects die cavity 10, air pressure 50 conveys forced air into die cavity 10 again, so that plastic cement
Fluid is sufficient filling with die cavity 10, while inhibiting the moisture vaporization in mold, prevents the generation of filamentary silver defect.
Injection molding apparatus provided by the present embodiment further includes the charger for pouring mould-injection fluid into die cavity 10
Structure 21, feeding mechanism 21 connect cover half 11.Specifically, cover half 11 offers connection feeding mechanism 21 and flows into mould for plastic cement fluid
The a cast runner 14 of chamber 10.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of injection mold, for plastic cement fluid to be shaped to injecting products characterized by comprising
Cover half component, the cover half component includes cover half, and the cover half has the first type chamber；
Dynamic model component, the dynamic model component and the cover half component cooperate and including dynamic models, and the dynamic model has second type chamber, institute
Second type chamber and the first type chamber cooperation are stated to form the die cavity for injection molding product；
Thimble, the thimble connect the dynamic model and for injecting products to be ejected the die cavity and are at least arranged one；
Gasket, the gasket connect the dynamic model and for sealing the thimble and the dynamic model, and the gasket is by bullet
Property and telescopic material is made；
Wherein, the intercommunicating pore that the dynamic model at least offers connection die cavity and passes through for the thimble, the dynamic model
Between the gasket and the cover half, the gasket covers and seals the aperture of the intercommunicating pore, the thimble
It pierces through the gasket and extends into the intercommunicating pore in one end.
2. injection mold as described in claim 1, it is characterised in that: the gasket offer for the thimble pass through it is close
Sealing of hole, the aperture of the sealing hole are less than the outer diameter of the thimble, and the hole wall of the sealing hole is shunk in the appearance of the thimble
Face.
3. injection mold as described in claim 1, it is characterised in that: the outer diameter phase in the aperture of the intercommunicating pore and the thimble
Deng.
4. injection mold as described in claim 1, it is characterised in that: the dynamic model offers accommodating cavity, and the intercommunicating pore is opened
Set on the bottom of chamber of the accommodating cavity, the sealing is padded on the sealing intercommunicating pore in the accommodating cavity.
5. injection mold as claimed in claim 4, it is characterised in that: the injection mold further includes multiple screws, each described
Screw arranged for interval and the bottom of chamber for being used to for the gasket being screw-locked at the accommodating cavity.
6. injection mold as claimed in claim 4, it is characterised in that: the dynamic model component further includes being located at the accommodating cavity
Support plate, the support plate connect the other end of the thimble, and the gasket is located at the support plate and the accommodating cavity
Between bottom of chamber, the support plate squeezes the gasket towards the bottom of chamber of the accommodating cavity.
7. injection mold as claimed in claim 6, it is characterised in that: there are three the intercommunicating pore opens up, each intercommunicating pore
It is inside provided with the thimble, the other end of each thimble is all connected with the support plate.
8. the injection mold as described in claim 1-7 any one, it is characterised in that: the injection mold further include for
The air pressure and capstan of compressed air are provided in die cavity, described capstan one end connects the pressurizer, institute
The other end for stating capstan is connected to the die cavity.
9. injection mold as claimed in claim 8, it is characterised in that: the other end of the capstan connects at the cover half
Lead to the die cavity.
10. a kind of injection molding apparatus characterized by comprising injection mold as described in any one of claims 1-9 with
And the feeding mechanism for pouring mould-injection fluid into the die cavity, the feeding mechanism connect the cover half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107898.7A CN108973028A (en) | 2018-09-21 | 2018-09-21 | A kind of injection mold and injection molding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107898.7A CN108973028A (en) | 2018-09-21 | 2018-09-21 | A kind of injection mold and injection molding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108973028A true CN108973028A (en) | 2018-12-11 |
Family
ID=64546403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107898.7A Pending CN108973028A (en) | 2018-09-21 | 2018-09-21 | A kind of injection mold and injection molding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108973028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026537A (en) * | 2019-03-06 | 2019-07-19 | 南安市天筹机械贸易有限公司 | A kind of gear base thermion shake mould metal die |
| CN113103515A (en) * | 2021-03-15 | 2021-07-13 | 重庆赋天智能科技有限公司 | Injection molding precision mold for protective sleeve shell of tablet personal computer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289063A (en) * | 1999-04-06 | 2000-10-17 | Asahi Chem Ind Co Ltd | Method for gas-pressurized injection molding |
| JP2012224068A (en) * | 2011-04-22 | 2012-11-15 | Sumitomo Heavy Ind Ltd | Injection molding machine and injection molding method |
| CN104129039A (en) * | 2014-07-10 | 2014-11-05 | 浙江工业大学 | External gas assisted injection mould |
| KR20160044361A (en) * | 2014-10-15 | 2016-04-25 | (주)유원하이텍 | Vacuum injection mold |
| CN208914505U (en) * | 2018-09-21 | 2019-05-31 | 深圳市创信力合科技有限公司 | A kind of injection mold and injection molding apparatus |
-
2018
- 2018-09-21 CN CN201811107898.7A patent/CN108973028A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289063A (en) * | 1999-04-06 | 2000-10-17 | Asahi Chem Ind Co Ltd | Method for gas-pressurized injection molding |
| JP2012224068A (en) * | 2011-04-22 | 2012-11-15 | Sumitomo Heavy Ind Ltd | Injection molding machine and injection molding method |
| CN104129039A (en) * | 2014-07-10 | 2014-11-05 | 浙江工业大学 | External gas assisted injection mould |
| KR20160044361A (en) * | 2014-10-15 | 2016-04-25 | (주)유원하이텍 | Vacuum injection mold |
| CN208914505U (en) * | 2018-09-21 | 2019-05-31 | 深圳市创信力合科技有限公司 | A kind of injection mold and injection molding apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026537A (en) * | 2019-03-06 | 2019-07-19 | 南安市天筹机械贸易有限公司 | A kind of gear base thermion shake mould metal die |
| CN113103515A (en) * | 2021-03-15 | 2021-07-13 | 重庆赋天智能科技有限公司 | Injection molding precision mold for protective sleeve shell of tablet personal computer |
| CN113103515B (en) * | 2021-03-15 | 2022-11-18 | 重庆赋天智能科技有限公司 | Injection molding precision mold for protective sleeve shell of tablet personal computer |
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