CN208410618U - A kind of injection mold of good forming effect - Google Patents
A kind of injection mold of good forming effect Download PDFInfo
- Publication number
- CN208410618U CN208410618U CN201820920620.0U CN201820920620U CN208410618U CN 208410618 U CN208410618 U CN 208410618U CN 201820920620 U CN201820920620 U CN 201820920620U CN 208410618 U CN208410618 U CN 208410618U
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- China
- Prior art keywords
- injection mold
- cavity
- forming effect
- good forming
- type chamber
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Abstract
The utility model discloses a kind of injection mold of good forming effect, including dynamic model, cover half, the type chamber being made of dynamic model and cover half and running gate system, cover half includes interior die wall and outer mold walls, interior die wall and outer mold walls form cavity, geometric pattern chamber one week ring row air drain is provided on interior die wall, air discharge duct is connected to type chamber and cavity, and total gas outlet is provided in outer mold walls.The injection mold enables in injection moulding process molten plastic is smooth to enter that type is intracavitary, the formed product effect of production is good, defect rate reduction by improving gas vent.
Description
Technical field
The utility model relates to injection-moulding device technical fields, and in particular to a kind of injection mold of good forming effect.
Background technique
Injection mold is a kind of tool for producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension
Tool, injection molding are a kind of processing methods used when producing certain complex-shaped components in batches, are referred specifically to melted by heat
Plastics by injection molding machine high pressure inject die cavity obtain formed products after cooling and solidifying.Injection mold mainly includes dynamic model and determines
Mould two large divisions, wherein dynamic model is movable, is mounted on the moving die plate of injection molding machine, and cover half is then mounted on the fixation of injection molding machine
In template, thus cover half be it is fixed, at work, dynamic model can level off to cover half to injection molding machine, and fixed half and moving half is closed structure
At type chamber and running gate system, when die sinking, dynamic model and cover half separation, ejecting mechanism start to act, plastic is ejected into die cavity so that
Injection-molded item smoothly demoulds, to complete a working cycles.
In injection moulding process, the plastics of fusing enter inside type chamber from running gate system, need during filling up type chamber
It is discharged long-living gas is reacted between the air or plastic components in type chamber, the exhaust gear of existing injection mold
The form exhaust of gas vent is usually opened up on die joint, wherein the aperture of gas vent is less than the overflow edge value of plastic rubber material, injection
The air in gas and type chamber generated in the process is discharged by gas vent.
But the exhaust of existing injection mold gas vent is very slow, exhaust effect is bad, seriously reduces the efficiency of injection molding, type
Pressure in chamber is larger, and type chamber is easy expansion, can be due to being vented the caused temperature mistake that has some setbacks in type chamber during cooling and shaping
It is high and keep shaped article deeply worried, since the plastic rubber material of melting cannot smoothly enter the intracavitary portion of type, make the intracavitary portion of type can not
Plastic rubber material is filled up, causes the formed product effect of production bad, to influence the appearance of moulded products, is made secondary in the product of production
The large percentage of product influences to sell, and reduces income, and cooling velocity is slower, needs to take a substantial amount of time and cools down, and influences to give birth to
Produce efficiency.
Utility model content
The purpose of this utility model is that: it is imitated for the bad formed product for leading to production of above-mentioned injection mold exhaust effect
Fruit is bad, cooling velocity slowly caused by the low problem of production efficiency, propose a kind of injection mold of good forming effect, the injection molding
Mold enables in injection moulding process molten plastic is smooth to enter that type is intracavitary, the formed product effect of production by improving gas vent
Good, defect rate reduces.
To achieve the goals above, the utility model adopts the technical scheme that a kind of injection mould of good forming effect
Tool, including dynamic model, cover half, the type chamber being made of the dynamic model and cover half and running gate system, the cover half includes interior die wall and outer
Die wall, the interior die wall and the outer mold walls form cavity, and geometric pattern chamber one week ring row air drain is provided on the interior die wall,
The air discharge duct is connected to the type chamber and the cavity, and total gas outlet is provided in the outer mold walls.
Through the above technical solutions, the modeling of melting is injected into type chamber by running gate system when using the injection mold
Material, during injecting molten plastic into type chamber, gas that air and molten plastic in type chamber generate in process of production
Body is entered by air discharge duct in the cavity that interior die wall and outer mold walls are formed, and enters gas in cavity from total in outer mold walls
Gas outlet discharges, and air discharge duct is set as ring structure and is connected to cavity, and since the space in cavity is larger, gas is from row
Row is to outside after can buffering in the cavities after air drain discharge, and wherein the height of air discharge duct is less than the overflow edge value of molten plastic,
Overflow edge value refers to that plastic cement products can overflow a numerical value for coming (namely race flash) under great gap, setting in this way
It sets and can avoid causing in injection moulding process since exhaust effect is bad the molding effect of the product of production bad, substandard products are more
Situation, compared with traditional injection mold directly communicates with the outside world gas vent in the form of aperture, the exhaust of the injection mold
Effect is more preferable, and sets cavity structure for cover half, is on the one hand connected to ring row air drain, the gas generated in injection moulding process and
Air is entered in cavity and is buffered, and keeps exhaust effect more preferable, and the formed product effect of production is more preferable, generates the probability of substandard products more
It is low, on the other hand make the weight of whole equipment lighter, staff is lighter during the installation process, using more convenient.
Further, it is provided with escape pipe at total gas outlet, is connected with vacuum pump on the escape pipe.Pass through vacuum
Pumping takes the gas being drained into cavity, and making to enter the buffer gas in cavity also can quickly discharge, to can also make type
Gas in chamber is quickly discharged to area in cavity, further decreases the pressure in type chamber, so that molten plastic is rapidly filled with type chamber, mentions
High efficiency.
Further, it is provided with sliding equipment on the air discharge duct, is provided on the sliding equipment for described in slide-through
The slide plate of air discharge duct.When having small part molten plastic in injection moulding process and entering in air discharge duct, sliding can be passed through
Mechanism drives slide plate mobile, is wiped off molten plastic remaining on air discharge duct by slide plate in moving process, under the influence of avoiding
The exhaust effect of a collection of injecting products.
Further, the sliding equipment includes electric telescopic rod, and one end and the slide plate of the electric telescopic rod are fixed
Connection, the other end of the electric telescopic rod are fixed on air discharge duct.When needing to wipe off in plastics remaining on air discharge duct, lead to
It is mobile to cross electric telescopic rod driving slide plate, same sliding blade apparatus is provided on each side of ring row air drain, due to fixed
Mould is usually square structure, so being provided with sliding equipment on the air discharge duct on every one side, if cover half is arcuate structure, is adopted
With the electric telescopic rod of arc.
Further, the cooling body for cooling down plastic molding product is provided in the cavity.By in cavity
Cooling body is set, molding product can be quickly cooled down, production efficiency is improved, keeps the formed product effect of production more preferable.
Further, the cooling body includes the cooling water being positioned close in the cavity of the interior die wall side
Pipe, the cooling water pipe includes inlet and outlet, and the water inlet is provided with water pump, and the water outlet extends to described
It is connect outside outer mold walls with water container.After the formed product of production, cold water is inputted into cold water pipe by water supply device,
The temperature of reduction type chamber, thus quickly in reduction type chamber shaped article temperature, carry out it is cooling after water be discharged to water container
In, molding product can be made to be quickly cooled down by the way that cooling device is arranged, improve production efficiency.
Further, the interior die wall is made of Heat Conduction Material.Inner wall wall is made of Heat Conduction Material, makes cooling dress
It sets that transmit low temperature aging fruit into type chamber more preferable, keeps type cavity radiating effect more preferable, and then enable molded part in type chamber quickly
It is cooling, the quality of shaped article is improved, while improving production efficiency.
Further, the running gate system includes the cast gate being arranged on the dynamic model, the cast gate and the type chamber it
Between be communicated with depositing.Molten plastic is entered in type chamber from the cast gate of injection mold by depositing, into can be into after type chamber
Row injection molding, it is easy to operate, it is easy for installation.
Based on described above, the utility model compared with prior art, is had the advantages that
(1) cover half is set cavity structure by the injection mold, is on the one hand connected to ring row air drain, produces in injection moulding process
Raw gas and air, which enters in cavity, to be buffered, and keeps exhaust effect more preferable, and the formed product effect of production is more preferable, generates substandard products
Probability it is lower, on the other hand make the weight of whole equipment lighter, staff during the installation process more easily, use is more square
Just.
(2) gas being drained into cavity is extracted by vacuum pump, the buffer gas for making to enter in cavity also can be quick
It discharges, so that the gas in type chamber can also be made quickly to be discharged to area in cavity, further decreases the pressure in type chamber, mould melting
Material can be rapidly filled with type chamber, improve production efficiency.
(3) when having small part molten plastic in injection moulding process and entering in air discharge duct, skate machine can be passed through
Structure drives slide plate mobile, is wiped off molten plastic remaining on air discharge duct by slide plate in moving process, one under the influence of avoiding
Annotate the exhaust effect of molding product.
(4) by the way that cooling body is arranged in cavity, molding product can be quickly cooled down, improves production efficiency, makes
The formed product effect of production is more preferable.
(5) inner wall wall is made of Heat Conduction Material, so that cooling device is transmitted low temperature aging fruit into type chamber more preferable, makes type
Cavity radiating effect is more preferable, and then the molded part in type chamber is enable quickly to cool down, and improves the quality of shaped article, while improving life
Produce efficiency.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of good forming effect injection mold structural schematic diagram；
Fig. 2 be the utility model proposes a kind of good forming effect lateral section view of the injection mold in the middle part of air discharge duct
Figure；
Fig. 3 is transverse sectional view of the injection mold of the prior art along air discharge duct.
In figure: 1- dynamic model, 2- air discharge duct, die wall in 3-, 4- outer mold walls, 5- slide plate, 6- sliding equipment, 7- cover half, 8- water
Pump, 9- water inlet, 10- cooling water pipe, 11- water outlet, 12- vacuum pump, the total gas outlet 13-, 14- cast gate, 15- depositing, 16- are empty
Chamber, 17- type chamber, 18- escape pipe.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to specific implementation
The utility model is described in further detail for example.
Embodiment 1
Referring to Fig.1-3, a kind of injection mold of good forming effect, including dynamic model 1, cover half 7, be made of dynamic model 1 and cover half 7
Type chamber 17 and running gate system, cover half 7 include interior die wall 3 and outer mold walls 4, interior die wall 3 forms cavity 16, internal model with outer mold walls 4
Geometric pattern chamber one week ring row air drain 2 is provided on wall 3, air discharge duct 2 is connected to type chamber and cavity 16, is arranged in outer mold walls 4
There is total gas outlet 13.
Working principle: when using the injection mold, the plastics of melting are injected by running gate system into type chamber, to type
During injecting molten plastic in chamber 17, the gas that air and molten plastic in type chamber generate in process of production passes through row
Air drain 2 enters in the cavity 16 that interior die wall 3 is formed with outer mold walls 4, enters the gas in cavity 16 from total in outer mold walls 4
Gas outlet 13 discharges, and air discharge duct 2 is set as ring structure and is connected to cavity 16, since the space in cavity 16 is larger,
Row is to outside after gas can buffer after the discharge of air discharge duct 2 in cavity 16, and wherein the height of air discharge duct 2 is less than melting modeling
The overflow edge value of material, overflow edge value refer to that plastic cement products can overflow to come under great gap a numerical value of (namely race flash),
Setting in this way can avoid causing in injection moulding process since exhaust effect is bad the molding effect of the product of production not
It is good, the more situation of substandard products, compared with traditional injection mold directly communicates with the outside world gas vent in the form of aperture, the note
The exhaust effect of mould is more preferable, and sets 16 structure of cavity for cover half 7, is on the one hand connected to, was molded with ring row air drain 2
The gas and air generated in journey, which enters in cavity 16, to be buffered, and keeps exhaust effect more preferable, and the formed product effect of production is more preferable,
The probability for generating substandard products is lower, on the other hand makes the weight of whole equipment lighter, and staff more easily, makes during the installation process
With more convenient.
Embodiment 2
Based on embodiment 1, referring to Fig.1-3, it is provided with escape pipe 18 at total gas outlet 13 of the embodiment, on escape pipe 18
It is connected with vacuum pump 12.
The gas being drained into cavity 16 is extracted by vacuum pump 12, makes the buffer gas entered in cavity 16 also can be fast
Speed discharges, so that the gas in type chamber 17 can also be made quickly to be discharged to area in cavity 16, further decreases the pressure in type chamber 17,
So that molten plastic is rapidly filled with type chamber, improves production efficiency.
Embodiment 3
Based on embodiment 1, referring to Fig.1-3, it is provided with sliding equipment 6 on the air discharge duct 2 of the embodiment, on sliding equipment 6
It is provided with the slide plate 5 for slide-through air discharge duct 2.
When having small part molten plastic in injection moulding process and entering in air discharge duct 2, sliding equipment 6 can be passed through
It drives slide plate 5 mobile, is wiped off molten plastic remaining on air discharge duct 2 by slide plate 5 in moving process, one under the influence of avoiding
Annotate the exhaust effect of molding product.
Embodiment 4
Based on embodiment 3, referring to Fig.1-3, the sliding equipment 6 of the embodiment includes electric telescopic rod, electric telescopic rod
One end is fixedly connected with slide plate 5, and the other end of electric telescopic rod is fixed on air discharge duct 2.
When needing to wipe off in plastics remaining on air discharge duct 2, drive slide plate 5 mobile by electric telescopic rod,
Each side of ring row air drain 2 is provided with same 5 device of slide plate, since cover half is usually square structure, so on every one side
Air discharge duct 2 on be provided with sliding equipment 6, if cover half 7 be arcuate structure, use arc electric telescopic rod.
Embodiment 5
Based on embodiment 1, referring to Fig.1-3, it is provided in the cavity 16 of the embodiment for cooling down plastic molding product
Cooling body.
By the way that cooling body is arranged in cavity 16, molding product can be quickly cooled down, improve production efficiency, make to give birth to
The formed product effect of production is more preferable.
Embodiment 6
Based on embodiment 5, referring to Fig.1-3, the cooling body of the embodiment includes the sky for being positioned close to interior 3 side of die wall
Cooling water pipe 10 in chamber 16, cooling water pipe 10 include water inlet 9 and water outlet 11, are provided with water pump 8 at water inlet 9, are discharged
Mouth 11 extends to 4 outside of outer mold walls and connect with water container.
After the formed product of production, cold water is inputted into cooling water pipe 10 by water supply device, reduction type chamber 17
Temperature, thus quickly in reduction type chamber 17 shaped article temperature, carry out it is cooling after water be discharged in water container, lead to
Crossing setting cooling device can be such that molding product is quickly cooled down, and improve production efficiency.
Embodiment 7
Based on embodiment 1, referring to Fig.1-3, the interior die wall 3 of the embodiment is made of Heat Conduction Material.
Inner wall wall is made of Heat Conduction Material, so that cooling device is transmitted low temperature aging fruit into type chamber 17 more preferable, makes type
17 heat dissipation effect of chamber is more preferable, and then the molded part in type chamber 17 is enable quickly to cool down, and improves the quality of shaped article, mentions simultaneously
High efficiency.
Embodiment 8
Based on embodiment 1, referring to Fig.1-3, the running gate system of the embodiment includes the cast gate 14 being arranged on dynamic model 1, is poured
Depositing 15 is communicated between mouth 14 and type chamber 17.
Molten plastic is entered in type chamber 17 from the cast gate 14 of injection mold by depositing 15, later into type chamber 17
Injection molding is carried out, it is easy to operate, it is easy for installation.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of injection mold of good forming effect, including dynamic model (1), cover half (7), it is made of the dynamic model (1) and cover half (7)
Type chamber (17) and running gate system, it is characterised in that: the cover half (7) includes interior die wall (3) and outer mold walls (4), the internal model
Wall (3) and the outer mold walls (4) form cavity (16), are provided with (17) one weeks ring rows of geometric pattern chamber on the interior die wall (3)
Air drain (2), the air discharge duct (2) are connected to the type chamber (17) and the cavity (16), are provided on the outer mold walls (4)
Total gas outlet (13).
2. a kind of injection mold of good forming effect according to claim 1, it is characterised in that: total gas outlet (13)
Place is provided with escape pipe (18), is connected with vacuum pump (12) on the escape pipe (18).
3. a kind of injection mold of good forming effect according to claim 1, it is characterised in that: on the air discharge duct (2)
It is provided with sliding equipment (6), the slide plate (5) for air discharge duct described in slide-through (2) is provided on the sliding equipment (6).
4. a kind of injection mold of good forming effect according to claim 3, it is characterised in that: the sliding equipment (6)
Including electric telescopic rod, one end of the electric telescopic rod is fixedly connected with slide plate (5), and the other end of the electric telescopic rod is solid
It is scheduled on air discharge duct (2).
5. a kind of injection mold of good forming effect according to claim 1, it is characterised in that: set in the cavity (16)
It is equipped with the cooling body for cooling down plastic molding product.
6. a kind of injection mold of good forming effect according to claim 5, it is characterised in that: the cooling body includes
The cooling water pipe (10) being positioned close in the cavity (16) of interior die wall (3) side, cooling water pipe (10) packet
Water inlet (9) and water outlet (11) are included, is provided with water pump (8) at the water inlet (9), the water outlet (11) extends to described
It is connect outside outer mold walls (4) with water container.
7. a kind of injection mold of good forming effect according to claim 5, it is characterised in that: the interior die wall (3) is adopted
It is made of Heat Conduction Material.
8. a kind of injection mold of good forming effect according to claim 1, it is characterised in that: the running gate system includes
The cast gate (14) being arranged on the dynamic model (1) is communicated with depositing (15) between the cast gate (14) and the type chamber (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820920620.0U CN208410618U (en) | 2018-06-14 | 2018-06-14 | A kind of injection mold of good forming effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820920620.0U CN208410618U (en) | 2018-06-14 | 2018-06-14 | A kind of injection mold of good forming effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208410618U true CN208410618U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820920620.0U Expired - Fee Related CN208410618U (en) | 2018-06-14 | 2018-06-14 | A kind of injection mold of good forming effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208410618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126217A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of exhaust apparatus of mold |
-
2018
- 2018-06-14 CN CN201820920620.0U patent/CN208410618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126217A (en) * | 2019-05-30 | 2019-08-16 | 开平市盈光机电科技有限公司 | A kind of exhaust apparatus of mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20190614 |