CN218535478U - Valve needle sealing mechanism and injection stretch blow mold - Google Patents
Valve needle sealing mechanism and injection stretch blow mold Download PDFInfo
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- CN218535478U CN218535478U CN202222711546.0U CN202222711546U CN218535478U CN 218535478 U CN218535478 U CN 218535478U CN 202222711546 U CN202222711546 U CN 202222711546U CN 218535478 U CN218535478 U CN 218535478U
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Abstract
The utility model discloses a needle sealing mechanism, notes draw and blow mould, wherein, a needle sealing mechanism contains: a hot runner main body; the nozzle seat is arranged in the hot runner main body; the glue opening sleeve is arranged on the nozzle seat, and a glue spraying flow channel is formed inside the glue opening sleeve and the nozzle seat; the valve needle is arranged in the glue spraying flow channel, and the bottom end of the valve needle penetrates through the hot runner main body; the pressing block is arranged on the rubber sleeve, and the top of the pressing block is abutted to the external injection molding shell; and the sealing module is detachably arranged between the rubber opening sleeve and the injection molding shell. The utility model discloses the top of gum mouth cover is equipped with sealed module, can realize annotating the thermal-insulated and sealed between the mould shell and the gum mouth cover export, and can not make the wearing and tearing of gum mouth cover, when the maintenance was changed, only need change sealed module can, save the cost.
Description
Technical Field
The utility model relates to an annotate and draw and blow mould technical field, in particular to needle sealing mechanism, notes draw and blow mould.
Background
Injection stretch blow molding, also called injection stretch blow molding for short, is a chemical term in which a blank is first injection molded by an injection molding machine, the hot blank is longitudinally stretched, and then compressed air is introduced to transversely stretch the hot blank to obtain a product with the same shape as a mold cavity.
The existing one-step injection, drawing and blowing mold can only be arranged in a line due to the reasons of machines and processes, but the joint of the existing glue opening sleeve and the injection molding shell is designed into a whole, so that the head end of the glue opening sleeve is easy to damage after repeated use and long-term use due to thermal expansion, the sealing effect is poor, the whole glue opening sleeve needs to be replaced during maintenance, waste is caused, and the valve needle sealing mechanism and the injection, drawing and blowing mold are designed.
SUMMERY OF THE UTILITY MODEL
According to the utility model discloses the embodiment provides a needle sealing mechanism, contains:
a hot runner main body;
the nozzle seat is arranged in the hot runner main body;
the glue opening sleeve is arranged on the nozzle seat, and a glue spraying flow channel is formed in the glue opening sleeve and the nozzle seat;
the valve needle is arranged in the glue spraying flow channel, and the bottom end of the valve needle penetrates through the hot runner main body;
the pressing block is arranged on the rubber sleeve, and the top of the pressing block is abutted to the external injection molding shell;
and the sealing module is detachably arranged between the rubber opening sleeve and the injection molding shell.
Further, the sealing module includes:
the heat insulation ring is arranged on the rubber sleeve, and the outer wall of the heat insulation ring is in contact with the inner wall of the pressing block;
and the sealing rubber ring is positioned on the heat insulation ring, and the top of the sealing rubber ring is abutted to the injection molding shell.
Further, the sealing module further comprises: and the sealing ring is arranged between the sealing rubber ring and the pressing block.
Further, the sealing ring is a metal sealing ring.
Furthermore, the top of the heat insulation ring is provided with a positioning groove, the bottom of the rubber sealing ring is provided with a positioning bulge, and the positioning groove and the positioning bulge are matched in shape and spliced together.
Further, the heat insulating ring is made of a high-temperature-resistant PI material.
Furthermore, the rubber mouth sleeve is made of beryllium copper.
According to another embodiment of the present invention, an injection stretch blow mold is provided, comprising a valve needle sealing mechanism.
According to the utility model discloses needle sealing mechanism, notes draw and blow mould, this case is equipped with sealing module on the top of gum mouthful cover, can realize annotating thermal-insulated and sealed between the mould shell and the gum mouthful cover export, and can not make the wearing and tearing of gum mouthful cover, when the maintenance is changed, only need to change sealing module can, save the cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the technology claimed.
Drawings
Fig. 1 is a schematic structural diagram of a valve needle sealing mechanism according to an embodiment of the present invention when the valve needle is not sealed.
Fig. 2 is a schematic structural diagram of a valve needle sealing mechanism according to an embodiment of the present invention.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Detailed Description
The present invention will be further described with reference to the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.
First, a valve needle sealing mechanism according to an embodiment of the present invention will be described with reference to fig. 1 to 3, which is used for sealing glue discharge and has a wide application range.
As shown in fig. 1 to 3, the valve needle sealing mechanism according to the embodiment of the present invention includes a hot runner main body 1, a nozzle holder 2, a nozzle bush 3, a valve needle 4, a pressing block 5, and a sealing module.
Specifically, as shown in fig. 1 to 2, the nozzle holder 2 is provided in the hot runner body 1.
Specifically, as shown in fig. 1 to 3, the glue opening sleeve 3 is arranged on the nozzle seat 2, a glue spraying flow channel 31 is formed inside the glue opening sleeve 3 and the nozzle seat 2 and used for conveying glue, the glue opening sleeve 3 is used for guiding the valve needle 4, and the glue opening sleeve 3 is made of beryllium copper.
Specifically, as shown in fig. 1 to 3, the valve needle 4 is arranged in the glue spraying flow channel 31, the bottom end of the valve needle 4 penetrates through the hot runner main body 1, and the valve needle 4 is driven by an external driver to lift, so that sealed opening and closing are realized.
Specifically, as shown in fig. 1 to 3, the pressing block 5 is disposed on the gum cover 3, and the top of the pressing block 5 abuts against an external injection molding shell 8 for pressing the gum cover 3.
Specifically, as shown in fig. 1 to 3, the sealing module is detachably arranged between the rubber port sleeve 3 and the injection molding shell 8, so that the sealing module is convenient to detach and replace. The sealing module includes: a heat insulating ring 61 and a rubber sealing ring 62. The heat insulation ring 61 is arranged on the rubber mouth sleeve 3, the outer wall of the heat insulation ring 61 is in contact with the inner wall of the pressing block 5, and the heat insulation ring 61 is made of high-temperature-resistant PI materials and used for heat insulation to prevent heat from being dissipated into the injection molding shell 8 and affecting the cooling of a material to be cooled in the injection molding shell 8; the glue sealing ring 62 is positioned on the heat insulation ring 61, and the top of the glue sealing ring 62 is abutted to the injection molding shell 8 and used for sealing glue by matching with the valve needle 4.
Further, as shown in fig. 1 to 3, the sealing module further includes: and the sealing ring 63 is arranged between the sealing ring 62 and the pressing block 5, and the sealing ring 63 is a metal sealing ring 63 and is hollow, so that the sealing ring 63 can be deformed under pressure to prevent the glue from escaping to the outside.
Further, as shown in fig. 1 to 3, a positioning groove 71 is arranged at the top of the heat insulation ring 61, a positioning protrusion 72 is arranged at the bottom of the sealing ring 62, and the positioning groove 71 and the positioning protrusion 72 are matched in shape and spliced together to position the sealing ring 62 and the heat insulation ring 61.
When the glue injection device is used, the size after expansion is reserved according to the expansion coefficient of the material, when the glue injection runner 31 is heated, the nozzle seat 2 drives the glue sealing ring 62 to expand upwards and towards the outer side of the glue injection runner 31, when the temperature reaches the required temperature, the glue sealing ring 62 is just attached to the surface of the glue injection shell 8, the central hole of the glue sealing ring 62 is just aligned to the glue injection port of the glue injection shell 8, glue is injected, after the glue is injected, the valve needle 4 moves upwards under the driving of an external driver, the guide of the glue port sleeve 3 downwards reaches the position of the glue sealing ring 62, the glue is sealed by the matching of the head parts of the glue sealing ring 62 and the valve needle 4, and sealing and cutting off of the glue are achieved.
Above, having described with reference to fig. 1 to 3 and having described the valve needle sealing mechanism, notes drawing and blowing mould according to the embodiment of the utility model, the present case is equipped with sealing module on the top of gum mouth cover 3, can realize moulding the thermal-insulated and sealed between the shell 8 and the export of gum mouth cover 3, and can not cause the wearing and tearing of gum mouth cover 3, when the maintenance was changed, only need to change sealing module can, save the cost.
According to the utility model discloses still another embodiment provides an annotate and draw and blow mould contains needle sealing mechanism for annotate and draw and blow the sealed preparation of mould simpler, be convenient for maintain the change.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" comprises 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
While the invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the invention. Numerous modifications and alterations will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. A valve pin sealing mechanism, comprising:
a hot runner main body;
a nozzle holder disposed within the hot runner body;
the rubber opening sleeve is arranged on the nozzle seat, and a rubber spraying flow channel is formed inside the rubber opening sleeve and the nozzle seat;
the valve needle is arranged in the glue spraying flow channel, and the bottom end of the valve needle penetrates through the hot runner main body;
the pressing block is arranged on the rubber sleeve, and the top of the pressing block is abutted to the external injection molding shell;
and the sealing module is detachably arranged between the rubber opening sleeve and the injection molding shell.
2. The valve pin sealing mechanism of claim 1, wherein the sealing module comprises:
the heat insulation ring is arranged on the rubber sleeve, and the outer wall of the heat insulation ring is in contact with the inner wall of the pressing block;
and the rubber sealing ring is positioned on the heat insulation ring, and the top of the rubber sealing ring is abutted to the injection molding shell.
3. The needle seal mechanism of claim 2 wherein the seal module further comprises: and the sealing ring is arranged between the sealing rubber ring and the pressing block.
4. The needle seal mechanism of claim 3 wherein said seal is a metal seal.
5. The needle sealing mechanism of claim 2 wherein the top of the heat insulating ring is provided with a positioning groove, the bottom of the rubber sealing ring is provided with a positioning protrusion, and the positioning groove and the positioning protrusion are matched in shape and are spliced together.
6. The needle seal mechanism of claim 2 wherein said heat shield is a high temperature PI material.
7. The needle seal mechanism of claim 1 wherein said gum cover is beryllium copper.
8. An injection stretch blow mold comprising the valve needle sealing mechanism according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222711546.0U CN218535478U (en) | 2022-10-14 | 2022-10-14 | Valve needle sealing mechanism and injection stretch blow mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222711546.0U CN218535478U (en) | 2022-10-14 | 2022-10-14 | Valve needle sealing mechanism and injection stretch blow mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218535478U true CN218535478U (en) | 2023-02-28 |
Family
ID=85276079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222711546.0U Active CN218535478U (en) | 2022-10-14 | 2022-10-14 | Valve needle sealing mechanism and injection stretch blow mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218535478U (en) |
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2022
- 2022-10-14 CN CN202222711546.0U patent/CN218535478U/en active Active
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