CN211941881U - Novel side needle valve formula hot runner structure - Google Patents
Novel side needle valve formula hot runner structure Download PDFInfo
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- CN211941881U CN211941881U CN201922377502.7U CN201922377502U CN211941881U CN 211941881 U CN211941881 U CN 211941881U CN 201922377502 U CN201922377502 U CN 201922377502U CN 211941881 U CN211941881 U CN 211941881U
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- hot runner
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- 239000003292 glue Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model provides a novel side needle valve formula hot runner structure, including the die body shell to and locate the hot runner body and the glue sealing subassembly in the die body shell, the hot runner body is equipped with into jiao kou, sprue, side play runner and discharge gate, and the sprue sets up in the hot runner body, and sprue upper end and into jiao kou intercommunication, sprue lower extreme through side play runner and discharge gate intercommunication, the discharge gate sets up in the outside of hot runner body; the glue sealing assembly comprises a driving device and a valve needle, the valve needle is arranged on the outer side of the hot runner body, and the driving device is connected with the valve needle and used for driving the valve needle to move so as to enable the valve needle to seal the discharge hole. The side needle valve type hot runner structure can avoid the problems of high pulling of a product sprue, cold material generation and the like, so that the obtained product is attractive, the product quality is improved, and the glue material can be saved; and the hot runner structure has simple and novel structure and more reasonable layout.
Description
Technical Field
The utility model relates to a hot runner technical field especially relates to a novel side play needle valve formula hot runner structure.
Background
The hot runner system is a common component of an injection mold system, and is characterized in that a heating rod, a heating ring and the like are arranged near a runner to keep a molten state of rubber in the runner, so that the molten rubber flows out of a discharge port of the runner and is injected into a mold cavity of an injection mold through a gate to obtain a product.
Hot runner systems are generally divided into two categories: needle valve hot runner systems and open hot runner systems. Among them, some plastic products in the market, such as syringe sleeves, plastic tubes, and other plastic products with smaller cross-section, are usually completed by side glue injection molding. However, such a side-out hot runner structure using side-in glue is difficult to design into a needle valve type hot runner system, and is generally designed into an open type hot runner system. After the product of the open type hot runner system is subjected to pressure maintaining and cooling in the mold cavity, the rubber material at the gate needs to be broken by means of the mold opening force at the moment of mold opening so as to obtain the molded product, therefore, the gate is easy to have the problems of being pulled high and the like, the appearance of the product is affected, and even the quality of the product can be reduced. Therefore, in some products with higher requirements, in order to make the product gate beautiful, the open hot runner system is generally connected with a section of cold runner, but the cold runner is inevitably connected with the cold runner, so that the glue is wasted.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel side needle valve type hot runner structure which can avoid the problems of high product sprue, cold material generation and the like, thereby leading the obtained product to be beautiful, improving the product quality and saving sizing materials; and the hot runner structure has simple and novel structure and more reasonable layout.
In order to solve the problems, the utility model discloses a novel side needle valve type hot runner structure, which comprises a die body shell, a hot runner body and a sealing glue assembly, wherein the hot runner body and the sealing glue assembly are arranged in the die body shell; the glue sealing assembly comprises a driving device and a valve needle, the valve needle is arranged on the outer side of the hot runner body, and the driving device is connected with the valve needle and used for driving the valve needle to move so as to enable the valve needle to seal the discharge hole.
Preferably, the hot runner body includes adapter and hot-chew, and the adapter lower extreme is connected with the hot-chew, advances to glue the mouth and sets up on the adapter, and the side goes out runner horizontal distribution in the hot-chew, and the side of hot-chewing is provided with the mouth core, and the discharge gate sets up in the mouth core outside, and the side goes out the runner and passes through mouth core and discharge gate intercommunication.
Further preferably, the driving device is provided with a hollow structure which is vertically distributed, and the driving device is installed on the periphery of the adapter through the hollow structure.
Further preferably, the end part of the nozzle core close to the discharge hole is provided with a through hole which is vertically distributed, and the lower end part of the valve needle passes through the through hole and extends to the lower part of the nozzle core so as to seal the discharge hole.
Preferably, the valve needle is cylindrical, and the lower end of the cylindrical valve needle is further provided with an arc-shaped structure.
Preferably, the valve needle is also provided with a valve needle sleeve on the periphery thereof for guiding and sealing the valve needle.
Further preferably, a mold core insert is arranged on the periphery of the hot nozzle, the mold core insert is provided with first mounting holes which are vertically distributed, and the valve needle sleeve is arranged in the first mounting holes.
Still further preferably, the top of the mold insert is provided with an adjusting block, and the adjusting block is fixedly connected with the top surface of the valve needle sleeve; the adjusting block is provided with a fastener, the mold core insert is provided with a second mounting hole, the upper end of the fastener is fixedly connected with the adjusting block, and the lower end of the fastener penetrates through the adjusting block and extends into the second mounting hole.
Preferably, the driving means is a cylinder.
Compared with the prior art, the utility model discloses a following advantage:
the valve needle of the novel side needle outlet valve type hot runner structure is arranged on the outer side of the hot runner body, the driving device is connected with the valve needle, and the valve needle on the outer side of the hot runner body is driven to move by starting the driving device, so that the valve needle seals the discharge hole, and the purpose of sealing glue is achieved. Because the valve needle is adopted to seal the discharge hole for sealing, the glue material at the gate of the product is not required to be broken by the die sinking force, so that the problems of gate pull-up and the like of the product can be effectively avoided, the appearance of the product is more attractive, and the product quality can be improved; moreover, the hot runner structure does not need to be provided with a cold runner, so that cold materials cannot be generated, and the glue material can be saved; therefore, the hot runner structure is simple and novel in structure and more reasonable in layout.
Drawings
Fig. 1 is a partial cross-sectional view of the side outlet needle valve type hot runner structure of the present invention.
Fig. 2 is a schematic perspective view of the side needle valve type hot runner structure without the mold body casing according to the present invention.
Fig. 3 is a schematic perspective view of another view angle of the side outlet needle valve type hot runner structure of the present invention with the mold body housing and the mold insert removed.
Fig. 4 is a partially enlarged view of reference character a in fig. 3.
Fig. 5 is a schematic perspective view of a further viewing angle of the mold core insert, the adjusting block and the valve needle sleeve in the split state in the side outlet needle valve type hot runner structure without the mold body housing of the present invention.
Fig. 6 is a partially enlarged view of reference character B in fig. 5.
The reference numbers illustrate: 1 hot runner body; 10 a main flow channel; 11, a switching nozzle; 110, a glue inlet; 12 hot mouth; a 120-side outlet channel; 121 a mouth core; 122, a discharge hole; 123 through holes; 2, sealing a glue component; 20 a drive device; 200, a hollow structure; 21 a valve needle; 210 an arc-shaped structure; 211 a valve needle sleeve; 3, a die core insert; 30 a first mounting hole; 31 a second mounting hole; 32 a tuning block; 33 a fastener; 34 a product cavity; 35 a gate; 4 a die body housing.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Examples
The utility model discloses a novel side play needle valve formula hot runner structure, refer to fig. 1, including die body shell 4 to and locate hot runner body 1 in die body shell 4 and seal glue subassembly 2.
In this embodiment, the hot runner body 1 includes an adapter 11 and a hot nozzle 12, and the lower end of the adapter 11 is connected with the hot nozzle 12; the adapter nozzle 11 is provided with a glue inlet 110, the adapter nozzle 11 and the hot nozzle 12 are internally provided with a main runner 10, the hot nozzle 12 is internally provided with side outlet runners 120 horizontally distributed, the upper end of the main runner 10 is communicated with the glue inlet 110, and the lower end of the main runner 10 is communicated with the side outlet runners 120; the side surface of the hot nozzle 12 is provided with a nozzle core 121, the outer side of the nozzle core 121 is provided with a discharge hole 122, and the side discharge channel 120 is communicated with the discharge hole 122 through the nozzle core 121.
In practical application, the mold core insert 3 is arranged on the periphery of the hot nozzle 12, the product cavity 34 connected with the mold core insert 3 is arranged at the discharge port 122, and the sprue 35 is arranged between the discharge port 122 and the product cavity 34; the rubber enters the hot runner structure from the rubber inlet 110, flows through the main runner 10, the side outlet runner 120, the nozzle core 121, the discharge port 122 and the gate 35 in sequence, and is injected into the product cavity 34 from the gate 35 to mold and process the product. The hot runner structure is provided with a heating device, and the heating device is set in the prior art so that rubber in the hot runner structure is in a molten state.
In this embodiment, the sealing compound assembly 2 includes a driving device 20 and a valve needle 21, the valve needle 21 is disposed outside the hot runner body 1, and the driving device 20 is connected to the valve needle 21 and is used for driving the valve needle 21 to move, so that the valve needle 21 closes the discharge port 122.
The hot runner structure adopts the sealing glue of the valve needle 21 arranged on the outer side of the hot runner body 1, so that the sprue 35 between the discharge hole 122 and the product cavity 34 is enlarged, and the injection molding efficiency is improved.
Wherein, referring to fig. 2, the driving means 20 is provided with a hollow structure 200 vertically distributed, and the lower end of the adapter 11 is connected to the hot nozzle 12 through the hollow structure 200, so that the driving means 20 is installed at the periphery of the adapter 11 through the hollow structure 200. Among them, the driving device 20 is preferably a cylinder.
Referring to fig. 3-4, the end of the nozzle core 121 near the discharge outlet 122 is provided with a vertically distributed through hole 123, and the lower end of the valve needle 21 passes through the through hole 123 and extends to below the nozzle core 121 to close the discharge outlet 122.
In the glue sealing process, the driving device 20 drives the valve needle 21 on the outer side of the hot runner body 1 to vertically move downwards, so that the lower end part of the valve needle 21 penetrates through the through hole 123 and extends to the lower part of the nozzle core 121, and the communication between the nozzle core 121 and the discharge hole 122 is blocked, thereby preventing glue in the nozzle core 121 from continuously flowing out of the discharge hole 122, namely, the purpose of sealing glue is achieved by closing the discharge hole 122; therefore, the hot runner structure does not need to break the rubber at the gate of the product by means of mold opening force, so that the problems of gate pull-up and the like of the product can be effectively avoided, the appearance of the product is more attractive, and the product quality can be improved; moreover, the hot runner structure does not need to be provided with a cold runner, so that cold materials cannot be generated, and the glue material can be saved; therefore, the hot runner structure is simple and novel in structure and more reasonable in layout.
On the contrary, in the process of injection molding of the product, the driving device 20 drives the valve needle 21 to move vertically upward, so that the lower end of the valve needle 21 is far away from the through hole 123, and the nozzle core 121 and the discharge hole 122 are communicated again, so that the discharge hole 122 is opened, and the glue flows out from the discharge hole 122 of the nozzle core 121, so as to perform injection molding.
In practical application, the valve needle 21 is cylindrical, and the lower end of the cylindrical valve needle 21 is set to be the arc-shaped structure 210, so that in the process of closing or opening the discharge hole 122, the problem of glue leakage and the like caused by the fact that the lower end of the valve needle 21 is relatively sharp and the parts such as the through hole 123 of the nozzle core 121 are damaged can be avoided.
In this embodiment, referring to fig. 5-6, the valve needle 21 is provided with a valve needle sleeve 211 at the periphery thereof for guiding and sealing the vertically moving valve needle 21, so that the vertical movement of the valve needle 21 is more stable and the glue leakage can be avoided. Correspondingly, in order to arrange the valve needle sleeve 211 outside the hot nozzle 12, the vertically distributed first mounting holes 30 are arranged in the mold insert 3, and the valve needle sleeve 211 is arranged in the first mounting holes 30, so that the valve needle sleeve 211 is mounted in the mold insert 3 at the periphery of the hot nozzle 12.
In order to fix the valve needle sleeve 211 arranged in the first mounting hole 30, the top of the mold insert 3 is provided with an adjusting block 32, so that the adjusting block 32 is fixedly connected with the top surface of the valve needle sleeve 211; the adjusting block 32 is provided with a fastener 33, the mold core insert 3 is provided with a second mounting hole 31, the upper end of the fastener 33 is fixedly connected with the adjusting block 32, and the lower end of the fastener 33 passes through the adjusting block 32 and extends into the second mounting hole 31, so that the adjusting block 32 is firmly fixed on the mold core insert 3.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.
The technical solution provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (9)
1. A novel side needle valve type hot runner structure is characterized by comprising a die body shell, a hot runner body and a sealing glue assembly, wherein the hot runner body and the sealing glue assembly are arranged in the die body shell; the glue sealing assembly comprises a driving device and a valve needle, the valve needle is arranged on the outer side of the hot runner body, and the driving device is connected with the valve needle and used for driving the valve needle to move so as to enable the valve needle to seal the discharge hole.
2. The novel side outlet needle valve type hot runner structure according to claim 1, wherein the hot runner body comprises a transfer nozzle and a hot nozzle, the lower end of the transfer nozzle is connected with the hot nozzle, the glue inlet is arranged on the transfer nozzle, the side outlet flow channels are horizontally distributed in the hot nozzle, a nozzle core is arranged on the side surface of the hot nozzle, the discharge port is arranged outside the nozzle core, and the side outlet flow channels are communicated with the discharge port through the nozzle core.
3. The novel side outlet needle valve type hot runner structure as claimed in claim 2, wherein the driving device is provided with a hollow structure which is vertically distributed, and the driving device is installed on the periphery of the adapter through the hollow structure.
4. The novel side outlet needle valve type hot runner structure as claimed in claim 2, wherein the end of the nozzle core close to the outlet is provided with a through hole distributed vertically, and the lower end part of the valve needle passes through the through hole and extends to the lower part of the nozzle core to close the outlet.
5. The novel side-outlet needle valve type hot runner structure as claimed in claim 1, wherein the valve needle is cylindrical, and an arc-shaped structure is further provided at a lower end of the cylindrical valve needle.
6. The novel side-outlet needle valve type hot runner structure as claimed in claim 2, wherein a valve needle sleeve is further arranged on the periphery of the valve needle for guiding and sealing the valve needle.
7. The novel side outlet needle valve type hot runner structure according to claim 6, wherein a mold core insert is arranged on the periphery of the hot nozzle, the mold core insert is provided with first mounting holes which are vertically distributed, and the valve needle sleeve is arranged in the first mounting holes.
8. The novel side outlet needle valve type hot runner structure according to claim 7, wherein an adjusting block is arranged at the top of the mold core insert, and the adjusting block is fixedly connected with the top surface of the valve needle sleeve; the adjusting block is provided with a fastener, the mold core insert is provided with a second mounting hole, the upper end of the fastener is fixedly connected with the adjusting block, and the lower end of the fastener penetrates through the adjusting block and extends into the second mounting hole.
9. The novel side-outlet needle valve type hot runner structure as claimed in claim 1, wherein the driving means is a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922377502.7U CN211941881U (en) | 2019-12-25 | 2019-12-25 | Novel side needle valve formula hot runner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922377502.7U CN211941881U (en) | 2019-12-25 | 2019-12-25 | Novel side needle valve formula hot runner structure |
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| Publication Number | Publication Date |
|---|---|
| CN211941881U true CN211941881U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922377502.7U Active CN211941881U (en) | 2019-12-25 | 2019-12-25 | Novel side needle valve formula hot runner structure |
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| CN (1) | CN211941881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895002A (en) * | 2021-09-06 | 2022-01-07 | 惠州市鑫裕达科技有限公司 | Injection mold hot runner system |
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2019
- 2019-12-25 CN CN201922377502.7U patent/CN211941881U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895002A (en) * | 2021-09-06 | 2022-01-07 | 惠州市鑫裕达科技有限公司 | Injection mold hot runner system |
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