CN209504793U - A kind of mold with vacuum evacuation device - Google Patents
A kind of mold with vacuum evacuation device Download PDFInfo
- Publication number
- CN209504793U CN209504793U CN201822114365.3U CN201822114365U CN209504793U CN 209504793 U CN209504793 U CN 209504793U CN 201822114365 U CN201822114365 U CN 201822114365U CN 209504793 U CN209504793 U CN 209504793U
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- CN
- China
- Prior art keywords
- shell
- disk
- mold
- die
- die cavity
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 230000003746 surface roughness Effects 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000013022 venting Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the molds with vacuum evacuation device a kind of in mould applications, including upper die and lower die, lower die is inlaid with a mold insert, upper die and lower die and mold insert form a die cavity, exhaust passage is provided with below mold insert, it is connected to vacuum pump outside exhaust passage, is provided with die cavity sealing ring around die cavity on the molding interface of upper mold；Mold insert includes a cylindrical housing, several air inlets and a gas vent are provided with above shell, air inlet is connected to die cavity, gas vent is connected to exhaust passage, interior of shell is provided with one piece of disk matched with shell, disk is circumferentially provided with sealing ring, and spring is fixedly connected between disk and shell.The utility model can make die venting thorough, and can be reduced the workload of injection molding machine.
Description
Technical field:
The utility model relates to mould applications, and in particular to a kind of mold with vacuum evacuation device.
Background technique:
In moulding production process, bad it be easy to cause product bubble occur due to being vented in die cavity, burn, starved etc.
Quality defect currently solves the problems, such as that this main means are exactly to open up air discharge duct.By injection pressure by intracavitary gas from
In air discharge duct " extrusion ", to drain into atmosphere, this passive type is vented the product shorter for the filling time, in injection molding
When, molten plastic " extrusions " gas is leaned in the short time, there can be gas and be arranged endless, therefore can not thoroughly solve exhausting problem and cause
Quality defect；In addition, injection pressure needed for passive exhaust is larger, and under the premise of board clamp force is certain, board load phase
To increase, therefore the probability that the defects of mould that rises, peak occurs increases.
Summary of the invention:
The utility model is to solve the above-mentioned problems, and to design a kind of mold with vacuum evacuation device.
The utility model is realized by following scheme: this mold with vacuum evacuation device, including upper mold, under
Mould, it is characterised in that the lower die is inlaid with a mold insert, and the upper die and lower die and mold insert form a die cavity, the mold insert lower section
It is provided with exhaust passage, is connected to vacuum pump outside the exhaust passage, on the molding interface of the upper mold around the die cavity
It is provided with die cavity sealing ring；The mold insert includes a cylindrical housing, is provided with several air inlets and one above the shell
A gas vent, the air inlet are connected to the die cavity, and the gas vent is connected to the exhaust passage, and the interior of shell is set
It is equipped with one piece of disk matched with the shell, the disk is circumferentially provided with sealing ring, the disk and the shell
Between be fixedly connected at least three springs.
Preferably, in order to which disk can be installed swimmingly and activity, the diameter of the disk is 0.1mm smaller than the internal diameter of shell ~
0.2mm, the sealing ring and the inserted connection of the disk.
Preferably, in order to which disk can be more movable, the surface of the interior of shell and the disk contact portion is thick
Rugosity is less than 0.04 μm of Ra.
Compared with prior art, the benefit of the utility model is: by using installing mold insert in lower die, and air inlet is arranged
Hole, exhaust passage and vacuum pump, and sealing ring is set on the molding interface of upper mold and increases leakproofness, by existing passive row
Gas is actively to vacuumize, therefore can quickly, thoroughly be exhausted.Injection pressure can also be reduced simultaneously, so that it is negative to reduce equipment
Lotus.
Detailed description of the invention:
Fig. 1 is the utility model structure diagram
Fig. 2 is the structural schematic diagram of mold insert
Fig. 3 is the molding interface schematic diagram of upper mold
Specific embodiment:
The utility model is described in detail with reference to the accompanying drawings and detailed description:
According to Fig. 1 to a kind of mold with vacuum evacuation device shown in Fig. 3, including upper mold 1, lower die 2, the lower die 2
It is inlaid with a mold insert 3, the upper mold 1, lower die 2 and mold insert 3 form a die cavity 6, are provided with exhaust passage 4 below the mold insert 3,
It is connected to vacuum pump 5 outside the exhaust passage 4, it is close to be provided with die cavity around the die cavity 6 on the molding interface of the upper mold 1
Seal 7；The mold insert 3 includes a cylindrical housing 31, and the shell 31 is provided with several air inlets 32 and a row above
Stomata 33, the air inlet 32 are connected to the die cavity 6, and the gas vent 33 is connected to the exhaust passage 4, the shell 31
It is internally provided with one piece of disk 34 matched with the shell 31, the disk 34 is circumferentially provided with sealing ring 35, described
At least three springs 36 are fixedly connected between disk 34 and the shell 31.
Another preferred embodiment, the difference is that the diameter of the disk 34 it is 0.1mm smaller than the internal diameter of shell 31 ~
0.2mm, the sealing ring 35 and the inserted connection of the disk 34.
Another preferred embodiment, the difference is that 31 inside of the shell is thick with the surface of 34 contact portion of disk
Rugosity is less than 0.04 μm of Ra.
It is emphasized that: the above is only the preferred embodiment of the present utility model, not appoints to the utility model
What formal limitation, any simple modification made by the above technical examples according to the technical essence of the present invention, etc.
With variation and modification, it is still within the scope of the technical solutions of the present invention.
Claims (3)
1. a kind of mold with vacuum evacuation device, including upper mold (1), lower die (2), it is characterised in that described: the lower die (2)
It is inlaid with a mold insert (3), the upper mold (1), lower die (2) and mold insert (3) form a die cavity (6), setting below the mold insert (3)
Have exhaust passage (4), is connected to vacuum pump (5) outside the exhaust passage (4), along described on the molding interface of the upper mold (1)
Die cavity sealing ring (7) are provided with around die cavity (6)；The mold insert (3) includes a cylindrical housing (31), the shell (31)
It is provided with several air inlets (32) and a gas vent (33) above, the air inlet (32) is connected to the die cavity (6), described
Gas vent (33) is connected to the exhaust passage (4), and the shell (31) is internally provided with one piece and matches with the shell (31)
The disk (34) of conjunction, the disk (34) are circumferentially provided with sealing ring (35), the disk (34) and the shell (31) it
Between be fixedly connected at least three springs (36).
2. a kind of mold with vacuum evacuation device according to claim 1, it is characterised in that: the disk (34) it is straight
Diameter is 0.1mm ~ 0.2mm smaller than the internal diameter of shell (31), the sealing ring (35) and the disk (34) inserted connection.
3. a kind of mold with vacuum evacuation device according to claim 1, it is characterised in that: the shell (31) is internal
It is less than 0.04 μm of Ra with the surface roughness of the disk (34) contact portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822114365.3U CN209504793U (en) | 2018-12-17 | 2018-12-17 | A kind of mold with vacuum evacuation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822114365.3U CN209504793U (en) | 2018-12-17 | 2018-12-17 | A kind of mold with vacuum evacuation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209504793U true CN209504793U (en) | 2019-10-18 |
Family
ID=68195186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822114365.3U Active CN209504793U (en) | 2018-12-17 | 2018-12-17 | A kind of mold with vacuum evacuation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209504793U (en) |
-
2018
- 2018-12-17 CN CN201822114365.3U patent/CN209504793U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A mold with vacuum pumping device Granted publication date: 20191018 Pledgee: Kunshan sub branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: KUNSHAN HAORUIDA MOULDING Co.,Ltd. Registration number: Y2024980000958 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |