CN217169486U - Injection molding nozzle for injection molding machine for preventing gas injection - Google Patents
Injection molding nozzle for injection molding machine for preventing gas injection Download PDFInfo
- Publication number
- CN217169486U CN217169486U CN202220047523.1U CN202220047523U CN217169486U CN 217169486 U CN217169486 U CN 217169486U CN 202220047523 U CN202220047523 U CN 202220047523U CN 217169486 U CN217169486 U CN 217169486U
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- cavity
- baffle
- wall
- injection molding
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection molding machine is with nozzle of moulding plastics of preventing gas injection, including the nozzle body, the middle part of nozzle body is run through and is offered the nozzle runner that is used for moulding plastics, the cavity that communicates with the nozzle runner is seted up to the inside of nozzle body, the inner wall of cavity runs through and sets up the feed inlet with nozzle runner rear end intercommunication, the inner wall sliding connection of cavity has the baffle that corresponds with the feed inlet, the baffle passes through ejection mechanism with the cavity and is connected, the inner wall of cavity runs through and sets up a plurality of water conservancy diversion holes that communicate with nozzle runner front end, separate feed inlet and a plurality of water conservancy diversion holes through the baffle. The utility model discloses the guide block is moved to the right along recess inner wall in the top, is favorable to the guide block to drive the baffle and plugs up the feed inlet, and then separates the front end and the rear end of nozzle runner, and then avoids the plastics backward flow after the nozzle runner front end melts and produce the cavity, has reduced the influence to plastic molding in the mould.
Description
Technical Field
The utility model relates to an injection molding machine nozzle technical field especially relates to an injection molding machine is with preventing injection molding's injection nozzle.
Background
An injection molding machine, also known as an injection molding machine or an injection machine, is a main molding device for manufacturing thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding die, a nozzle of the plastic injection molding machine is an important part in an injection part, the molten plastics in a charging barrel are injected into the die through the nozzle for molding, and the molten plastics are injected into a cavity of the die through the nozzle at a high flow rate under the action of the thrust of a screw rod during injection molding.
However, after the melted plastic is injected into the mold, the screw rod moves backwards, so as to drive the plastic in the injection nozzle to move towards the nozzle runner, so that a cavity is generated in the runner at the front end of the injection nozzle, and air is injected into the mold during the next injection, which may affect the molding of the plastic in the mold.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an injection molding nozzle for preventing gas injection for an injection molding machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an injection molding nozzle of gas injection prevention for injection molding machine, includes the nozzle body, the middle part of nozzle body is run through and is offered the nozzle runner that is used for moulding plastics, the cavity with nozzle runner intercommunication is offered to the inside of nozzle body, the inner wall of cavity runs through and sets up the feed inlet with nozzle runner rear end intercommunication, and the inner wall sliding connection of cavity has the baffle that corresponds with the feed inlet, the baffle passes through ejection mechanism with the cavity and is connected, the inner wall of cavity runs through and sets up a plurality of water conservancy diversion holes that communicate with nozzle runner front end, separates feed inlet and a plurality of water conservancy diversion hole through the baffle.
Preferably, the cavity is of a cylindrical structure, the feed inlet is formed in the center of the cavity, and the diameter of the baffle is larger than that of the feed inlet.
Preferably, ejection mechanism is including seting up the recess at the cavity inner wall, the inner wall sliding connection of recess has the guide block fixed with the baffle, and the guide block passes through spring coupling with the interior diapire of recess.
Preferably, the inner wall of the cavity is provided with a clamping groove communicated with the groove, the baffle is inserted into the clamping groove, and the depth of the clamping groove is the same as the thickness of the baffle.
Preferably, the plurality of flow guide holes are formed in one side of the clamping groove and are uniformly distributed on the outer side of the baffle.
Preferably, the inner wall fixedly connected with of nozzle runner front end blocks the flow, and the one end equipartition in a plurality of water conservancy diversion holes blocks the outside of flow, block the flow for the diameter from the circular boss that the left hand right increases gradually.
Compared with the prior art, the beneficial effects of the utility model are that:
the baffle, the recess that set up and the cooperation of spring are used to reach and move the guide block through the spring top and follow the effect that recess inner wall moved right, be favorable to the guide block to drive the baffle and plug up the feed inlet, and then separate the front end and the rear end of nozzle runner, and then avoid the plastics backward flow after the nozzle runner front end melts and produce the cavity, reduced the influence to plastic molding in the mould.
Drawings
Fig. 1 is a schematic view of a first state cross-sectional structure according to the present invention;
fig. 2 is a schematic view of a second state cross-sectional structure according to the present invention;
fig. 3 is a schematic view of a partial cross-sectional structure according to the present invention.
In the figure: the nozzle comprises a nozzle body 1, a nozzle flow passage 2, a cavity 3, a feed inlet 4, a baffle 5, a flow guide hole 6, a groove 7, a guide block 8, a spring 9, a clamping groove 10 and a flow blocking block 11.
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.
Referring to fig. 1-3, an injection molding nozzle for preventing gas injection for an injection molding machine comprises a nozzle body 1, the nozzle body 1 has the same structure as the existing injection molding machine nozzle, a nozzle runner 2 for injection molding is arranged in the middle of the nozzle body 1 in a penetrating manner, plastic extruded from an output port of the injection molding machine 1 enters a mold through the nozzle runner 2, a cavity 3 communicated with the nozzle runner 2 is arranged inside the nozzle body 1, a feed port 4 communicated with the rear end of the nozzle runner 2 is arranged in the inner wall of the cavity 3 in a penetrating manner, the cavity 3 is of a cylindrical structure, the feed port 4 is arranged at the center of the cavity 3, the diameter of a baffle 5 is larger than that of the feed port 4, a baffle 5 corresponding to the feed port 4 is connected to the inner wall of the cavity 3 in a sliding manner, and the baffle 5 is connected with the cavity 3 through an ejection mechanism;
the ejection mechanism comprises a groove 7 formed in the inner wall of the cavity 3, the inner wall of the groove 7 is connected with a guide block 8 fixed with the baffle 5 in a sliding mode, the guide block 8 is connected with the inner bottom wall of the groove 7 through a spring 9, the inner wall of the cavity 3 is provided with a clamping groove 10 communicated with the groove 7, the baffle 5 is connected with the clamping groove 10 in an inserting mode, the depth of the clamping groove 10 is the same as the thickness of the baffle 5, after the mold is filled, the injection molding machine stops extruding, the melted plastic does not continuously apply pressure to the baffle 5 any more, the spring 9 pushes the guide block 8 to move rightwards along the inner wall of the groove 7, the guide block 8 is favorable for driving the baffle 5 to block the feed port 4, the front end and the rear end of the nozzle runner 2 are separated, the melted plastic at the front end of the nozzle runner 2 is prevented from flowing backwards to generate a cavity, and the influence on plastic forming in the mold is reduced;
a plurality of water conservancy diversion holes 6 all set up in one side of draw-in groove 10, and 6 equipartitions in a plurality of water conservancy diversion holes are in the outside of baffle 5, the inner wall of cavity 3 runs through the water conservancy diversion hole 6 of seting up a plurality of and 2 front end intercommunications of nozzle runner, separate feed inlet 4 and a plurality of water conservancy diversion holes 6 through baffle 5, the inner wall fixedly connected with spoiler 11 of 2 front ends of nozzle runner, when plastics after melting get into 2 front ends of nozzle runner through a plurality of water conservancy diversion holes 6, the plastics after will melting through spoiler 11 are crowded to nozzle body 1 opening, the one end equipartition in a plurality of water conservancy diversion holes 6 is in spoiler 11's the outside, spoiler 11 is the circular boss that the diameter increases gradually from left to right.
The working principle of the utility model is that when the utility model is used, the nozzle body 1 is arranged at the output port of the injection molding machine 1, the injection molding machine is started to extrude the melted plastic into the nozzle body 1, the melted plastic is fed into the feed port 4 and pushes the baffle 5 to move towards the groove 7 until the baffle 5 is inserted into the clamping groove 7, the plurality of flow guide holes 6 are communicated with the feed port 4, the injection molding machine continuously pushes the melted plastic into the cavity 3 from the feed port 4 and then into the plurality of flow guide holes 6 from the cavity 3, and finally flows into the front end of the nozzle runner 2 and is extruded into the mold from the nozzle body 1, after the mold is filled, the injection molding machine stops extruding, the melted plastic does not continuously apply pressure to the baffle 5 any more, the spring 9 pushes the guide block 8 to move towards the right along the inner wall of the groove 7, which is beneficial for the guide block 8 to drive the baffle 5 to block the feed port 4, and then separate the front end and the rear end of the nozzle runner 2, and then avoid the plastics backward flow after the front end of the nozzle runner 2 melts and produce the cavity, reduced the influence to the shaping of plastics in the mould.
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 an injection molding machine is with nozzle of moulding plastics of preventing gas injection, includes nozzle body (1), the middle part of nozzle body (1) is run through and is offered nozzle runner (2) that are used for moulding plastics, a serial communication port, cavity (3) with nozzle runner (2) intercommunication are offered to the inside of nozzle body (1), the inner wall of cavity (3) runs through and offers feed inlet (4) with nozzle runner (2) rear end intercommunication, and the inner wall sliding connection of cavity (3) has baffle (5) that correspond with feed inlet (4), baffle (5) are connected through ejection mechanism with cavity (3), the inner wall of cavity (3) runs through and offers a plurality of water conservancy diversion holes (6) with nozzle runner (2) front end intercommunication, separates feed inlet (4) and a plurality of water conservancy diversion hole (6) through baffle (5).
2. An injection nozzle for preventing gas injection for injection molding machines as claimed in claim 1, wherein said chamber (3) is of cylindrical configuration and said feed opening (4) opens at the center of said chamber (3), said baffle (5) having a diameter greater than the diameter of said feed opening (4).
3. An injection nozzle for preventing gas injection for injection molding machines as claimed in claim 1, wherein said ejection mechanism comprises a groove (7) formed in the inner wall of the cavity (3), a guide block (8) fixed to the baffle (5) is slidably attached to the inner wall of the groove (7), and the guide block (8) is connected to the inner bottom wall of the groove (7) through a spring (9).
4. The gas injection prevention injection nozzle for the injection molding machine according to claim 3, wherein the inner wall of the cavity (3) is provided with a clamping groove (10) communicated with the groove (7), the baffle (5) is inserted into the clamping groove (10), and the depth of the clamping groove (10) is the same as the thickness of the baffle (5).
5. The gas injection prevention injection nozzle for the injection molding machine according to claim 4, wherein the plurality of guide holes (6) are formed at one side of the clamping groove (10), and the plurality of guide holes (6) are uniformly formed at the outer side of the baffle (5).
6. The gas injection prevention injection molding nozzle for the injection molding machine according to claim 1, wherein a flow blocking block (11) is fixedly connected to the inner wall of the front end of the nozzle runner (2), one end of the plurality of flow guide holes (6) is uniformly distributed on the outer side of the flow blocking block (11), and the flow blocking block (11) is a circular boss with a diameter increasing from left to right in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220047523.1U CN217169486U (en) | 2022-01-10 | 2022-01-10 | Injection molding nozzle for injection molding machine for preventing gas injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220047523.1U CN217169486U (en) | 2022-01-10 | 2022-01-10 | Injection molding nozzle for injection molding machine for preventing gas injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217169486U true CN217169486U (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220047523.1U Active CN217169486U (en) | 2022-01-10 | 2022-01-10 | Injection molding nozzle for injection molding machine for preventing gas injection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116653212A (en) * | 2023-05-30 | 2023-08-29 | 浙江恒道科技有限公司 | Be applied to integral type mouth core structure of light guide |
-
2022
- 2022-01-10 CN CN202220047523.1U patent/CN217169486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116653212A (en) * | 2023-05-30 | 2023-08-29 | 浙江恒道科技有限公司 | Be applied to integral type mouth core structure of light guide |
| CN116653212B (en) * | 2023-05-30 | 2024-04-19 | 浙江恒道科技股份有限公司 | Be applied to integral type mouth core structure of light guide |
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