CN213082133U - Sealing structure of plastic foaming equipment - Google Patents
Sealing structure of plastic foaming equipment Download PDFInfo
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- CN213082133U CN213082133U CN202021448392.5U CN202021448392U CN213082133U CN 213082133 U CN213082133 U CN 213082133U CN 202021448392 U CN202021448392 U CN 202021448392U CN 213082133 U CN213082133 U CN 213082133U
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- annular
- upper die
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- top surface
- foaming
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Abstract
The utility model relates to a sealing structure of plastic foaming equipment, which comprises an upper die, a lower die and a sealing ring; the upper die is located above the lower die, the upper die and the lower die are connected in a covering mode, a foam material containing groove is formed in the center of the top surface of the lower die, an annular shallow groove is formed in the top surface of the upper die, the foam material containing groove surrounds the top surface of the upper die, a first annular protrusion matched with the annular shallow groove is formed in the bottom surface of the upper die, and the sealing ring is embedded in the annular shallow groove. Set up the sealing washer in the annular shallow slot of bed die, can guarantee that annular shallow slot and first annular arch can play sealed effect when bed die and last mould lid for mechanical foaming can stably go on, thereby can guarantee the gas tightness and the foaming quality of foaming process, has guaranteed that the quality of the foamed plastic that produces is excellent.
Description
Technical Field
The utility model relates to a plastics foaming equipment field especially relates to a seal structure of plastics foaming equipment.
Background
The common foaming methods include a mechanical foaming method and a chemical foaming method, wherein the mechanical foaming method is generally used for placing a foaming material into a lower die of a plastic foaming device, then covering an upper die and the lower die, introducing carbon dioxide from the upper die and controlling air pressure and temperature to perform mechanical foaming, and the foaming quality is often affected due to insufficient covering tightness between the upper die and the lower die in the mechanical foaming process, so that the quality of the generated foamed plastic is poor.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the above problems in the prior art, the utility model provides a seal structure of plastic foaming equipment can improve the foaming quality.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include: a sealing structure of plastic foaming equipment comprises an upper die, a lower die and a sealing ring;
the upper die is located above the lower die, the upper die and the lower die are connected in a covering mode, a foam material containing groove is formed in the center of the top surface of the lower die, an annular shallow groove is formed in the top surface of the upper die, the foam material containing groove surrounds the top surface of the upper die, a first annular protrusion matched with the annular shallow groove is formed in the bottom surface of the upper die, and the sealing ring is embedded in the annular shallow groove.
Further, the material of sealing washer is aluminium.
Furthermore, an annular deep groove is formed in the top surface of the lower die and arranged on the periphery of the annular shallow groove, and a second annular bulge matched with the annular deep groove is formed in the bottom surface of the upper die.
(III) advantageous effects
The utility model has the advantages that: set up the sealing washer in the annular shallow slot of bed die, can guarantee that annular shallow slot and first annular arch can play sealed effect when bed die and last mould lid for mechanical foaming can stably go on, thereby can guarantee the gas tightness and the foaming quality of foaming process, has guaranteed that the quality of the foamed plastic that produces is excellent.
Drawings
Fig. 1 is a schematic structural view of a sealing structure of the plastic foaming device of the present invention;
[ description of reference ]
1. An upper die; 2. a lower die; 3. a first annular projection; 4. a second annular projection; 5. a seal ring; 6. an annular deep groove; 7. and an annular shallow groove.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
Referring to fig. 1, a sealing structure of a plastic foaming device includes an upper mold, a lower mold, and a sealing ring;
the upper die is located above the lower die, the upper die and the lower die are connected in a covering mode, a foam material containing groove is formed in the center of the top surface of the lower die, an annular shallow groove is formed in the top surface of the upper die, the foam material containing groove surrounds the top surface of the upper die, a first annular protrusion matched with the annular shallow groove is formed in the bottom surface of the upper die, and the sealing ring is embedded in the annular shallow groove.
From the above description, the beneficial effects of the present invention are: set up the sealing washer in the annular shallow slot of bed die, can guarantee that annular shallow slot and first annular arch can play sealed effect when bed die and last mould lid for mechanical foaming can stably go on, thereby can guarantee the gas tightness and the foaming quality of foaming process, has guaranteed that the quality of the foamed plastic that produces is excellent.
Further, the material of sealing washer is aluminium.
From the above description, the material that sets up the sealing washer is aluminium for the ductility of sealing washer is good, can suitably extrude deformation, makes the sealing washer more laminate the shape of annular shallow slot, reaches excellent sealed effect.
Furthermore, an annular deep groove is formed in the top surface of the lower die and arranged on the periphery of the annular shallow groove, and a second annular bulge matched with the annular deep groove is formed in the bottom surface of the upper die.
As can be seen from the above description, the annular deep groove is formed on the top surface of the lower mold, and the second annular protrusion matched with the annular deep groove is formed on the bottom surface of the upper mold, so that the air tightness of the foaming process is further ensured.
Example one
Referring to fig. 1, a sealing structure of a plastic foaming device includes an upper mold 1, a lower mold 2 and a sealing ring 5;
the upper die 1 is located above the lower die 2, the upper die 1 and the lower die 2 can be connected in a covering mode, a foam material placing groove is formed in the center of the top surface of the lower die 2, an annular shallow groove 7 is formed in the top surface of the upper die 1 and surrounds the foam material placing groove, first annular protrusions 3 matched with the annular shallow groove 7 are arranged on the bottom surface of the upper die 1, and the sealing ring 5 is embedded in the annular shallow groove 7.
Wherein, the material of sealing washer 5 is aluminium.
The top surface of the lower die 2 is provided with an annular deep groove 6, the annular deep groove 6 is arranged on the periphery of the annular shallow groove 7, and the bottom surface of the upper die 1 is provided with a second annular bulge 4 matched with the annular deep groove 6.
To sum up, the utility model provides a seal structure of plastic foaming equipment sets up the sealing washer in the annular shallow slot of bed die, can guarantee that annular shallow slot and first annular are protruding to play sealed effect when bed die and last mould lid for mechanical foaming can stably go on, thereby can guarantee the gas tightness and the foaming quality of foaming process, has guaranteed that the foamed plastic's of production quality is excellent. Wherein, the material that sets up the sealing washer is aluminium for the ductility of sealing washer is good, can suitably extrude deformation, makes the shape of sealing washer laminating annular shallow slot more, reaches excellent sealed effect. In addition, the top surface of the lower die is provided with an annular deep groove, and the bottom surface of the upper die is provided with a second annular bulge matched with the annular deep groove, so that the air tightness in the foaming process is further ensured.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (3)
1. A sealing structure of plastic foaming equipment is characterized by comprising an upper die, a lower die and a sealing ring;
the upper die is located above the lower die, the upper die and the lower die are connected in a covering mode, a foam material containing groove is formed in the center of the top surface of the lower die, an annular shallow groove is formed in the top surface of the upper die, the foam material containing groove surrounds the top surface of the upper die, a first annular protrusion matched with the annular shallow groove is formed in the bottom surface of the upper die, and the sealing ring is embedded in the annular shallow groove.
2. The sealing structure of the plastic foaming device according to claim 1, wherein the sealing ring is made of aluminum.
3. The sealing structure of plastic foaming equipment according to claim 1, wherein the top surface of the lower mold is provided with an annular deep groove which is provided at the periphery of the annular shallow groove, and the bottom surface of the upper mold is provided with a second annular protrusion which is engaged with the annular deep groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021448392.5U CN213082133U (en) | 2020-07-21 | 2020-07-21 | Sealing structure of plastic foaming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021448392.5U CN213082133U (en) | 2020-07-21 | 2020-07-21 | Sealing structure of plastic foaming equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213082133U true CN213082133U (en) | 2021-04-30 |
Family
ID=75626138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021448392.5U Active CN213082133U (en) | 2020-07-21 | 2020-07-21 | Sealing structure of plastic foaming equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213082133U (en) |
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2020
- 2020-07-21 CN CN202021448392.5U patent/CN213082133U/en active Active
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