CN209158799U - A kind of solid-state Silicon moulds pressure injection molding - Google Patents
A kind of solid-state Silicon moulds pressure injection molding Download PDFInfo
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- CN209158799U CN209158799U CN201822040912.8U CN201822040912U CN209158799U CN 209158799 U CN209158799 U CN 209158799U CN 201822040912 U CN201822040912 U CN 201822040912U CN 209158799 U CN209158799 U CN 209158799U
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- runner
- solid
- circular groove
- material feeding
- injection molding
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Abstract
The utility model relates to a kind of solid-state Silicon moulds to press injection molding, the cope plate including lower template, above lower template and the pressure plate for executing depression to cope plate at work；The upper surface of the lower template is provided with the type chamber according to made from required product contour structures, the flash slot by type chamber, the material feeding circular groove being connected to flash slot, the upper surface of the cope plate digs the runner with predetermined depth, it is opening at the top of runner, runner bottom is provided with multiple injection orifices, and injection orifice is connected to runner and material feeding circular groove；The lower lock block that the bottom of pressure plate is equipped with complete covering runner open top and can push along side wall of flow channel.When the silica gel product demoulding produced by the mold of the utility model, tears position open certainly and automatically disengaged with product, be not necessarily to manual demolition, open defect is also not present, effectively increases productivity, has reduced or remitted the dismounting process for tearing position open certainly, improved product yield and product quality.
Description
Technical field
The utility model relates to silica gel to be molded field, press injection molding especially with regard to a kind of New Solid Silicon moulds.
Background technique
The moulding process of silica gel can be divided into two major classes according to silica gel type, and one kind is that solid-state silica gel forms, and one kind is liquid
The molding of state silica gel；The molding of solid-state silica gel can be divided into compression molding and extrusion molding again, and liquid-state silicon gel is generally molded injection
Molding.
Conventional solid-state silica gel mould pressing process is: relying on heating in closed mould cavity by silica gel materials, pressurizes and be shaped to silicon
Raw material is usually passed through kneading machine uniform stirring into rubber compound, mold is moved into vulcanization forming machine, is added by the processing of glue product
Temperature.Then silica gel material is put into mold, die closing pressurization makes it form and solidify or vulcanizes, then demoulded to obtain silica gel product.
The product of conventional solid-state silica gel molding die molding there are open defect, demoulded after 1. moldings, aperture from
It tears open with product depanning, is pulled out again by manually tearing the aperture of product certainly open after depanning；2. tear position open has 0.05- to product aperture certainly
0.08mm's tears position open certainly, the product obvious open defect small for shape, and not can avoid.
Utility model content
In view of this, the utility model is in order to solve the above technical problems, provide a kind of New Solid Silicon moulds pressure injection mold
Tool is torn position open certainly and is automatically disengaged with product when being demoulded by the silica gel product that this mold produces, and is not necessarily to manual demolition, is also not present
Open defect.
The purpose of this utility model is achieved through the following technical solutions:
A kind of solid-state Silicon moulds press injection molding, cope plate including lower template, above lower template and for
The pressure plate of depression is executed in work to cope plate；The upper surface of the lower template is provided with according to required product shape knot
Type chamber made from structure, the flash slot by type chamber, the material feeding circular groove being connected to flash slot, the upper surface of the cope plate is dug
Have a runner with predetermined depth, be opening at the top of runner, runner bottom is provided with multiple injection orifices, injection orifice be connected to runner with
Material feeding circular groove；The lower lock block that the bottom of pressure plate is equipped with complete covering runner open top and can push along side wall of flow channel.
The injection orifice includes the upper hole being connected to runner and the lower opening being connected to material feeding circular groove, and upper hole is mutually interconnected with lower opening
Logical, the upper hole is in up big and down small funnel-form, and the lower opening is cylindrical.
The upper hole and runner junction are provided with chamfering；The lower part in the upper hole and the top of lower opening connect, upper hole
Central axes and the central axes of lower opening are on same straight line, and the lower section area in upper hole is greater than the top area of section of lower opening.
The lower surface of the cope plate is provided with the type core according to made from required product contour structures, the type chamber and type core
The inside for combining the mold of composition is a cavity, and the cavity is identical as the contour structures of the required product.
The material feeding circular groove is semicircle bulbous recess, and the center of circle of material feeding circular groove is located on injection orifice central axes.
It is provided with the type chamber of N row M column in the lower template, is provided with M-1 material feeding circular groove on every a line type chamber, wherein N
For the integer more than or equal to 1, M is the integer greater than 1, and there are the hair arranged towards type cavity direction in the two sides of material feeding circular groove
Side slot.
A kind of solid-state silica gel injection moulding process, specifically includes the following steps:
S1, the mold is made according to the contour structures of required product；
S2, silica gel materials are placed in kneading machine and are stirred, rubber compound is made；
S3, it will be heated in lower template, cope plate, pressure plate merging vulcanization forming machine, vulcanization；
S4, lower template, cope plate, pressure plate are assembled；
S5, rubber compound is injected in the runner of cope plate；
S6, it is pressed downward compeling pressure plate, the rubber compound in runner is injected into material feeding by injection orifice by after the extruding of pressure plate
Circular groove and to enter type via flash slot intracavitary；
S7, mold is solidified, is heated, is vulcanized；
S8, die sinking obtain required product.
The step further includes the step S9 after step S8 is arranged in: removing the waste material in cope plate.
The step further includes the step S5.9 before step S6 is arranged in: being vacuumized to the mold for being marked with rubber compound.
Specifically, material is pressed into the runner of cope plate by silica gel material by pressure plate, then enter lower die via injection orifice
The flash slot of plate and to eventually enter into type intracavitary, then mold is solidified, heat, is vulcanized, required product is obtained after die sinking, wherein
Waste material more than injection orifice can disconnect automatically with lower template flash groove location after die sinking.Therefore after die sinking, it is only necessary to remove upper mold
The waste material of plate runner and injection orifice.
The beneficial effect of the utility model compared to the prior art is:
The solid-state Silicon moulds pressure injection molding of the utility model is by being transformed traditional die structure, so that thus mould
Tool and its silica gel product of corresponding process production, can tear a waste material open certainly with it and automatically disengage, be not necessarily to manual demolition, also
There is no open defects, effectively increase productivity, have reduced or remitted the dismounting process for tearing position open certainly, have improved product yield and product product
Matter.
Detailed description of the invention
Fig. 1 is that the solid-state Silicon moulds of the utility model embodiment press the explosive view of injection molding.
Fig. 2 is the tomograph that the solid-state Silicon moulds of the utility model embodiment press the lower template of injection molding.
Fig. 3 is the enlarged drawing of a-quadrant in Fig. 2.
Fig. 4 is the tomograph that the solid-state Silicon moulds of the utility model embodiment press the pressure plate of injection molding.
Fig. 5 is the tomograph that the solid-state Silicon moulds of the utility model embodiment press the cope plate of injection molding.
Fig. 6 is the enlarged drawing of B area in Fig. 5.
Fig. 7 is the three-dimensional figure that the solid-state Silicon moulds of the utility model embodiment press the upper template of injection molding.
Fig. 8 is the composite structural diagram that the solid-state Silicon moulds of the utility model embodiment press the injection orifice of injection molding.
Fig. 9 is that the solid-state Silicon moulds of the utility model embodiment press the explosive view of injection molding.
Specific embodiment
In order to facilitate the understanding of those skilled in the art, below in conjunction with specific embodiments and drawings to the utility model make into
One step detailed description.
Fig. 1-9 is please referred to, the utility model embodiment includes:
A kind of solid-state Silicon moulds pressure injection molding, including lower template 1, the cope plate being placed in lower template 12 and pressure
Pressure plate 3 on cope plate 2；Lower template upper surface 14 is provided with the type chamber 4 according to made from required product contour structures, is located at
The flash slot 5 on 4 side of type chamber, the material feeding circular groove 6 being connected to flash slot 5,5 bottom surface of flash slot are parallel to horizontal plane, material feeding circular groove
Depth is greater than the depth of flash slot, and cope plate upper surface 15 digs the runner 7 with predetermined depth, is opening at the top of runner 7,
7 bottom of runner is provided with multiple injection orifices 8, and injection orifice 8 is connected to runner 7 and material feeding circular groove 6；The bottom of pressure plate 3 is equipped with complete
The lower lock block 9 that covers 7 open top of runner and can be pushed along 7 side wall of runner.
Injection orifice 8 includes the upper hole 10 being connected to runner 7 and the lower opening 11 being connected to material feeding circular groove 6, upper hole 10 and lower opening
11 are interconnected, and upper hole 10 is in up big and down small funnel-form, and lower opening 11 is cylindrical；Upper hole 10 is provided with 7 junction of runner
Chamfering 12；The lower part in upper hole 10 is connect with the top of lower opening 11, and the central axes in upper hole 10 are in same with the central axes of lower opening 11
On straight line, the lower section area in upper hole 10 is greater than the top area of section of lower opening 11；Cope plate lower surface 16 is provided with basis
The inside that type core 13 made from required product contour structures, type chamber 4 and type core 13 combine the mold of composition is a cavity,
Cavity is identical as the contour structures of required product；Material feeding circular groove 6 is semicircle bulbous recess, and the center of circle of material feeding circular groove 6 is located at injection
On 8 central axes of hole；The type chamber 4 of N row M column is provided in lower template 1, wherein N is the integer more than or equal to 1, and M is greater than 1
Integer, M-1 material feeding circular groove 6 is provided on every a line type chamber 4, and the two sides of material feeding circular groove 6 have one to arrange towards 4 direction of type chamber
The flash slot 5 of cloth, flash slot 5 is closer to each other with type chamber 4 but does not contact with each other, and wherein flash slot 5 and type chamber 4 are shallower by depth
Little groove or through-hole connection.
A kind of solid-state silica gel injection moulding process, specifically includes the following steps:
S1, mold is made according to the contour structures of required product；
S2, silica gel materials are placed in kneading machine and are stirred, rubber compound is made；
S3, lower template 1, cope plate 2, pressure plate 3 are placed in heating in vulcanization forming machine, vulcanization；
S4, lower template 1, cope plate 2, pressure plate 3 are assembled；
S5, rubber compound is injected in the runner 7 of cope plate 2；
S5.9, the mold for being marked with rubber compound is vacuumized；
S6, it is pressed downward compeling pressure plate 3, the rubber compound in runner 7 is injected by after the extruding of pressure plate 3 by injection orifice 8
Material feeding circular groove 6 simultaneously enters in type chamber 4 via flash slot 5；
S7, mold is solidified, is heated, is vulcanized；
S8, die sinking obtain required product；
Waste material in S9, removing cope plate 2.
Specifically, material is pressed into the runner of cope plate by silica gel material by pressure plate, then enter lower die via injection orifice
The flash slot of plate and to eventually enter into type intracavitary, then mold is solidified, heat, is vulcanized, required product is obtained after die sinking, wherein
Waste material more than injection orifice can disconnect automatically with lower template flash groove location after die sinking.Therefore after die sinking, it is only necessary to remove upper mold
The waste material of plate runner and injection orifice.
It is silica gel raw material, vulcanizing agent, coloring agent that silica gel product, which produces main auxiliary material, and advantage is most occupied compared with Shooting Technique
Be that cost is relatively low, solid-state silica gel mould is cheaper than liquid in the industry, raw material than liquid-state silicon gel price relatively more
Cheaply, the die cavity multi-product of mold is higher, and disadvantage is then manual operation trouble, and tearing spue line open certainly does not have liquid perfection, product
20 degree or so to greatest extent of softness.It is designed from conventional solid-state silica gel mould, reaches simplified manual operation, it is close to tear spue line open certainly
In liquid-state silicon gel requirement.
Research and development are suitable for the mold that solid-state silica gel compression molding forming machine uses and are passed through using liquid-state silicon gel injection molding principle
The mould structure of the molding ejection formation of suitable product is developed in design on mould structure.Reach product without glue-feeder, and does not have
There are apparent molding lines and flash flaw, appearance is relatively more exquisite seamless.
The solid-state Silicon moulds pressure injection molding of the present embodiment is by being transformed traditional die structure, so that thus mold
And its silica gel product of corresponding process production, a waste material can be torn open certainly with it and automatically disengaged, be not necessarily to manual demolition, also not
There are open defects, effectively increase productivity, have reduced or remitted the dismounting process for tearing position open certainly, have improved product yield and product product
Matter.
Although the description combination embodiments above to the utility model carries out, it is familiar with the art
Personnel can carry out many replacements based on the above contents, modifications and variations, be obvious.Therefore, all such
Substitution, improvements and changes are included in the spirit and scope of appended claims.
Claims (6)
1. a kind of solid-state Silicon moulds press injection molding, which is characterized in that including lower template (1), be located at it is upper above lower template (1)
Template (2) and the pressure plate (3) for being used at work execute cope plate (2) depression；The lower template (1) it is upper
Surface is provided with the type chamber (4) according to made from required product contour structures, is located at type chamber (4) other flash slot (5) and flash slot
(5) the material feeding circular groove (6) being connected to, the upper surface of the cope plate (2) digs the runner (7) with predetermined depth, runner (7)
Top is opening, and runner (7) bottom is provided with multiple injection orifices (8), and injection orifice (8) is connected to runner (7) and material feeding circular groove (6)；
The lower lock block that the bottom of pressure plate (3) is equipped with complete covering runner (7) open top and can push along runner (7) side wall
(9).
2. solid-state Silicon moulds according to claim 1 press injection molding, which is characterized in that the injection orifice (8) include with
The upper hole (10) of runner (7) connection and the lower opening (11) being connected to material feeding circular groove (6), upper hole (10) mutually interconnect with lower opening (11)
Logical, the upper hole (10) is in up big and down small funnel-form, and the lower opening (11) is cylindrical.
3. solid-state Silicon moulds according to claim 2 press injection molding, which is characterized in that the upper hole (10) and runner
(7) junction is provided with chamfering (12)；The lower part of the upper hole (10) is connect with the top of lower opening (11), the axis of upper hole (10)
The central axes of line and lower opening (11) are on same straight line, and the top that the lower section area of upper hole (10) is greater than lower opening (11) is cut
Face area.
4. solid-state Silicon moulds according to claim 1 press injection molding, which is characterized in that the following table of the cope plate (2)
Face is provided with type core (13) according to made from required product contour structures, and structure is combined in the type chamber (4) and type core (13)
At the inside of the mold be a cavity, the cavity is identical as the contour structures of the required product.
5. solid-state Silicon moulds according to claim 1 press injection molding, which is characterized in that the material feeding circular groove (6) is half
Spherical shape groove, the center of circle of material feeding circular groove (6) are located on injection orifice (8) central axes.
6. solid-state Silicon moulds according to claim 1 press injection molding, which is characterized in that be arranged on the lower template (1)
The type chamber (4) for having N row M to arrange, wherein N is the integer more than or equal to 1, and M is the integer greater than 1, is arranged on every a line type chamber (4)
There is M-1 material feeding circular groove (6), there are the flash slot (5) arranged towards type chamber (4) direction in the two sides of material feeding circular groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822040912.8U CN209158799U (en) | 2018-12-06 | 2018-12-06 | A kind of solid-state Silicon moulds pressure injection molding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822040912.8U CN209158799U (en) | 2018-12-06 | 2018-12-06 | A kind of solid-state Silicon moulds pressure injection molding |
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| Publication Number | Publication Date |
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| CN209158799U true CN209158799U (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822040912.8U Active CN209158799U (en) | 2018-12-06 | 2018-12-06 | A kind of solid-state Silicon moulds pressure injection molding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397628A (en) * | 2018-12-06 | 2019-03-01 | 华成新材料（惠州）有限公司 | A kind of mold that solid-state Silicon moulds pressure injection is penetrated and technique |
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2018
- 2018-12-06 CN CN201822040912.8U patent/CN209158799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397628A (en) * | 2018-12-06 | 2019-03-01 | 华成新材料（惠州）有限公司 | A kind of mold that solid-state Silicon moulds pressure injection is penetrated and technique |
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