CN212736877U - Plastic gas-assisted forming die - Google Patents
Plastic gas-assisted forming die Download PDFInfo
- Publication number
- CN212736877U CN212736877U CN202021227531.1U CN202021227531U CN212736877U CN 212736877 U CN212736877 U CN 212736877U CN 202021227531 U CN202021227531 U CN 202021227531U CN 212736877 U CN212736877 U CN 212736877U
- Authority
- CN
- China
- Prior art keywords
- gas
- mould
- pipeline
- last mould
- forming die
- 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.)
- Expired - Fee Related
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 36
- 239000004033 plastic Substances 0.000 title claims abstract description 36
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 127
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 210000003437 trachea Anatomy 0.000 claims 2
- 238000005498 polishing Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012943 hotmelt Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a plastics gas-assisted forming die relates to mould manufacturing technical field, including the mould body, the mould body includes lower mould and last mould, the lower mould sets up under last mould, the shaping die cavity has been seted up to the inside of going up the mould, the mouth of moulding plastics has been seted up at the interior roof middle part of shaping die cavity, the mouth of moulding plastics is the horn mouth shape and runs through last mould and communicate with shaping die cavity, the fixed gas port that is provided with in inside of mouth of moulding plastics, the top left side fixed connection pipeline of giving vent to anger of gas port, the pipeline of giving vent to anger passes the mould and extends to the outside left side of last mould, install the stop valve on the pipeline of giving vent to anger, the top right side fixedly connected with admission line of gas port, admission line passes the mould and extends to the outside right side of. The utility model discloses can accurate control gas port department gas pressure and pour into the inside gaseous volume of die cavity into.
Description
Technical Field
The utility model relates to a mould manufacturing technical field specifically is a plastics gas-assisted forming die.
Background
The gas-assisted molding technology is an innovation of the traditional injection molding technology, is a secondary revolution of the injection molding technology, breaks through the technical limitation of the traditional injection molding, has the advantages that many traditional injection moldings do not have, and the existing gas-assisted mold cannot control the pressure of gas at a gas port and the amount of gas injected into a cavity in the process of inflating so that a product made by the gas-assisted molding mold has the phenomenon of breaking the wall or not being processed in place.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a forming die is assisted to plastics gas has solved the gaseous pressure of the unable control gas port of the current forming die is assisted to plastics gas that proposes in the above-mentioned background art and has injected into the problem of the inside gaseous volume of die cavity.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
in order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a plastic gas-assisted forming die comprises a die body, wherein the die body comprises a lower die and an upper die, the lower die is arranged under the upper die, a forming cavity is formed in the upper die, an injection port is formed in the middle of the inner top wall of the forming cavity, the injection port is in a horn-shaped shape and penetrates through the upper die and is communicated with the forming cavity, a gas port is fixedly formed in the injection port, a gas outlet pipeline is fixedly connected to the left side of the top of the gas port, the gas outlet pipeline penetrates through the upper die and extends to the left side of the outside of the upper die, a stop valve is installed on the gas outlet pipeline, a gas inlet pipeline is fixedly connected to the right side of the top of the gas port, the gas inlet pipeline penetrates through the upper die and extends to the right side of the outside of the upper die, a one-way valve is installed on the gas inlet pipeline, the right side of the gas controller is fixedly connected with the left side of the gas pressurizer through a gas pipe, and the right side of the gas pressurizer is connected with a nitrogen tank through a gas pipe thread.
Further, the stop valve is located the left side of last mould, the check valve is located the right side of last mould.
Further, the air outlet pipeline and the air inlet pipeline are communicated with the air port, and the air outlet pipeline is communicated with the air inlet pipeline.
Furthermore, the air outlet pipeline and the air inlet pipeline are in close contact with the upper die without leaving gaps.
Further, the inner wall of the injection molding opening is polished, and a plurality of needle-shaped air holes are formed in the bottom of the upper die.
Furthermore, the check valve, the gas controller, the gas pressurizer and the nitrogen tank are not in contact with each other.
(III) advantageous effects
The utility model provides a forming die is assisted to plastics gas possesses following beneficial effect:
(1) this plastics gas assists forming die through being provided with gas pressurizer and gas controller between nitrogen gas jar and gas port for nitrogen gas can satisfy the gas pressure that hot melt needs in the shaping die cavity under the effect of gas pressurizer and gas controller, has solved the problem that current gas assists forming die can't control gas port department gas pressure.
(2) This shaping die is assisted to plastics gas, pipeline and admission line of giving vent to anger have been seted up through the left and right sides at the gas port, and be provided with the stop valve on the pipeline of giving vent to anger, the last check valve that has seted up of admission line, when the inside gas of die cavity is not enough, can be under the effect of gas controller, add gas to the inside of die cavity, at this moment, the check valve can guarantee that gas can not flow back into the gas controller, when the inside gas of die cavity is too much, can open the stop valve, discharge unnecessary gas in the die cavity, the problem of the unable control of shaping die is assisted to current gas and the gaseous volume of injecting into the.
Drawings
Fig. 1 is a schematic perspective view of a plastic gas-assisted molding die of the present invention;
fig. 2 is a top view of the plastic gas-assisted molding mold of the present invention;
fig. 3 is a sectional plan view of the plastic gas-assisted molding mold of the present invention;
fig. 4 is a schematic view of the internal structure of the plastic gas-assisted forming mold during operation.
In the figure: 1. a mold body; 2. a lower die; 3. an upper die; 4. molding a cavity; 5. an injection molding port; 6. a gas port; 7. an air outlet pipe; 8. a stop valve; 9. an air intake duct; 10. a one-way valve; 11. a gas controller; 12. a gas pressurizer; 13. and a nitrogen tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-4, the present invention provides a technical solution:
a plastic gas-assisted forming die comprises a die body 1, the die body 1 comprises a lower die 2 and an upper die 3, the lower die 2 is arranged under the upper die 3, a forming cavity 4 is arranged inside the upper die 3, a plurality of needle-shaped air holes are formed in the bottom of the upper die 3, when die assembly is convenient, hot melt inside the forming cavity 4 flows, an injection port 5 is formed in the middle of the inner top wall of the forming cavity 4, the injection port 5 is horn-shaped and penetrates through the upper die 3 and is communicated with the forming cavity 4, the inner wall of the injection port 5 is polished, an air port 6 is fixedly arranged inside the injection port 5, a gas outlet pipeline 7 is fixedly connected to the left side of the top of the air port 6, the gas outlet pipeline 7 penetrates through the upper die 3 and extends to the left side of the outside of the upper die 3, a stop valve 8 is arranged on the gas outlet pipeline 7, the stop valve 8 is positioned, the gas outlet pipeline 7 and the gas inlet pipeline 9 are communicated with the gas port 6, the gas outlet pipeline 7 is communicated with the gas inlet pipeline 9, the gas inlet pipeline 9 penetrates through the upper die 3 and extends to the right side of the outside of the upper die 3, the gas outlet pipeline 7 and the gas inlet pipeline 9 are in close contact with the upper die 3 without leaving a gap, the gas inlet pipeline 9 is provided with a one-way valve 10, the one-way valve 10 is positioned on the right side of the upper die 3, the right side of the gas inlet pipeline 9 is fixedly connected with a gas controller 11, the gas controller 11 is positioned on the right side of the one-way valve 10, the gas controller 11 can control the pressure of gas emitted from the gas port 6, the gas outlet pipeline 7 and the gas inlet pipeline 9 are arranged on the left side and the right side of the gas port 6, the gas outlet pipeline 7 is provided with a stop valve 8, the one-way valve 10 is arranged on the gas, at this time, the check valve 10 can ensure that the gas does not flow back into the gas controller 11, when the gas in the forming cavity 4 is too much, the stop valve 8 can be opened to discharge the redundant gas in the forming cavity 4, thereby solving the problem that the existing gas-assisted forming die can not control the amount of the gas injected into the forming cavity, the right side of the gas controller 11 is fixedly connected with the left side of the gas pressurizer 12 through a gas pipe, the gas pressurizer 12 can pressurize the nitrogen gas in the gas pipe, the right side of the gas pressurizer 12 is connected with the nitrogen gas tank 13 through a gas pipe thread, by arranging the gas pressurizer 12 and the gas controller 11 between the nitrogen gas tank 13 and the gas port 6, the nitrogen gas can meet the gas pressure required by the hot melt in the forming cavity 4 under the action of the gas pressurizer 12 and the gas controller 11, and solving the problem that the existing gas-assisted forming die can not control the gas, the check valve 10, the gas controller 11, the gas pressurizer 12 and the nitrogen gas tank 13 are not in contact with each other.
The working principle of the plastic gas-assisted forming die is that a die body 1 is firstly assembled and installed on a machine, then the heated and melted plastic is injected into a forming cavity 4 through an injection port 5, the hot melt plastic has certain fluidity and can slowly flow into the forming cavity 4, when the hot melt plastic meets the inner wall of the forming cavity 4 with lower temperature, a thin solidified layer can be formed, after the hot melt plastic with the cavity capacity of 50-90 percent is injected, nitrogen is controlled to be injected into the hot melt plastic from a gas port 6 through a gas controller 11, at the moment, the nitrogen pushes the hot melt plastic which is not solidified in the center to enter the forming cavity 4 which is not filled yet, after the gas injection is finished, the gas continuously pushes the hot melt plastic to flow until the hot melt plastic is uniformly filled in the whole cavity, then the hot melt plastic is cooled and formed, and after a product is formed, the lower mold 2 is moved downward to take out the molded product, and then the mold body 1 is closed again, and the previous operations are repeated again, and in the process, when the gas injection is excessive, the stop valve 8 is opened to release a certain amount of gas, and when the flowability of the hot-melt plastic is poor, the gas pressurizer 12 is opened to pressurize the nitrogen gas, so that the pressurized high-pressure nitrogen gas can push the hot-melt plastic with poor flowability.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a plastics gas-assisted forming die, includes mould body (1), its characterized in that, mould body (1) includes lower mould (2) and last mould (3), lower mould (2) set up under last mould (3), shaping die cavity (4) have been seted up to the inside of going up mould (3), injection molding mouth (5) have been seted up at the interior roof middle part of shaping die cavity (4), injection molding mouth (5) are the horn mouth shape and run through last mould (3) and communicate with shaping die cavity (4), the inside fixed gas port (6) that is provided with of injection molding mouth (5), the top left side fixed connection pipeline of giving vent to anger (7) of gas port (6), pipeline of giving vent to anger (7) pass last mould (3) and extend to the outside left side of last mould (3), install stop valve (8) on pipeline of giving vent to anger (7), the top right side fixed connection of gas port (6) has inlet duct (9), intake duct (9) pass last mould (3) and extend to the outside right side of last mould (3), install check valve (10) on intake duct (9), the right side fixedly connected with gas control ware (11) of intake duct (9), gas control ware (11) are located the right side of check valve (10), the left side of trachea fixed connection gas presser (12) is passed through on the right side of gas control ware (11), the right side of gas presser (12) has nitrogen gas tank (13) through trachea threaded connection.
2. A plastic gas-assisted forming die according to claim 1,
stop valve (8) are located the left side of last mould (3), check valve (10) are located the right side of last mould (3).
3. A plastic gas-assisted forming die according to claim 1,
the air outlet pipeline (7) and the air inlet pipeline (9) are communicated with the air port (6), and the air outlet pipeline (7) is communicated with the air inlet pipeline (9).
4. A plastic gas-assisted forming die according to claim 1,
the air outlet pipeline (7) and the air inlet pipeline (9) are in close contact with the upper die (3) without leaving gaps.
5. A plastic gas-assisted forming die according to claim 1,
the inner wall of the injection molding opening (5) is subjected to polishing treatment, and a plurality of needle-shaped air holes are formed in the bottom of the upper die (3).
6. A plastic gas-assisted forming die according to claim 1,
the check valve (10), the gas controller (11), the gas pressurizer (12) and the nitrogen tank (13) are not in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021227531.1U CN212736877U (en) | 2020-06-29 | 2020-06-29 | Plastic gas-assisted forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021227531.1U CN212736877U (en) | 2020-06-29 | 2020-06-29 | Plastic gas-assisted forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212736877U true CN212736877U (en) | 2021-03-19 |
Family
ID=75011476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021227531.1U Expired - Fee Related CN212736877U (en) | 2020-06-29 | 2020-06-29 | Plastic gas-assisted forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212736877U (en) |
-
2020
- 2020-06-29 CN CN202021227531.1U patent/CN212736877U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105729728A (en) | Method for gas-assisted injection molding of automobile instrument board | |
| CN113427717A (en) | Injection mold capable of assisting demolding through high-pressure gas | |
| CN204398250U (en) | transparent plastic box hot runner injection mould | |
| CN201357549Y (en) | Cold flow channel structure of oak injection mould | |
| CN216068500U (en) | Shell mould for manufacturing automobile air conditioner panel | |
| CN212736877U (en) | Plastic gas-assisted forming die | |
| CN206425491U (en) | A kind of gravity casting mold of seal nipple | |
| CN209158807U (en) | A kind of needle valve type hot runner structure | |
| CN208978183U (en) | A kind of laminated type adapted to injection system | |
| CN201970450U (en) | Cold runner for air valve oil seal injection moulding | |
| CN210501214U (en) | Glue feeding structure for notebook key cap plastic mold | |
| CN211105429U (en) | Automobile engine oil pipe water-assisted injection molding mold | |
| CN213733248U (en) | Time-saving plastic injection mold | |
| CN207657072U (en) | A kind of Gas assisted injection moulding mold cavity configuration | |
| CN217862536U (en) | Quick forming die of ultra-thin precision structure spare | |
| CN219768995U (en) | Injection mold | |
| CN219838165U (en) | Binding post mould with automatic cooling heat radiation structure | |
| CN219667317U (en) | Waterproof bolt processing die | |
| CN103522499A (en) | Die used for making rubber products | |
| CN203665887U (en) | Mold for manufacturing rubber products | |
| CN221089826U (en) | Solid silica gel cold runner compression molding tool | |
| CN218314916U (en) | Reinforced injection mold who prevents blockking up | |
| CN201136242Y (en) | Mould with waterway structure | |
| CN219926792U (en) | Semi-hot runner injection mold of sealing ring | |
| CN215203222U (en) | Mobile phone part mold blank capable of being cooled quickly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |