CN212860275U - Hot nozzle structure - Google Patents
Hot nozzle structure Download PDFInfo
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- CN212860275U CN212860275U CN202021366057.0U CN202021366057U CN212860275U CN 212860275 U CN212860275 U CN 212860275U CN 202021366057 U CN202021366057 U CN 202021366057U CN 212860275 U CN212860275 U CN 212860275U
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- nozzle
- core
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- mouth
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Abstract
The utility model provides a hot nozzle structure, which comprises an open frame, a nozzle body, a nozzle core and a shunting needle; the nozzle body is arranged in the open frame, the heating sleeve is sleeved outside the nozzle body, and a main flow passage which penetrates through the nozzle body along the axial direction of the nozzle body is arranged in the nozzle body; the shunt needle and the nozzle core are respectively arranged inside the nozzle body, and the nozzle core is of a tubular structure; the upper part of the shunt needle is connected with the top of the nozzle core, and the lower part of the shunt needle is positioned in the middle of the nozzle core; the lower end of the nozzle core extends out of the nozzle body and extends to be in contact with the lower end of the open frame; the lower end of the mouth core is provided with a chamfer and is matched with the lower end of the open frame. In the hot nozzle structure of the utility model, the nozzle head and the nozzle core are arranged close to the open frame, thus reducing the clearance between the nozzle head and the open frame and reducing the temperature loss at the front end of the hot nozzle; and the lower end of the chewing core is contacted with the lower end of the opening frame, so that the hidden glue between the chewing core and the opening frame is reduced, the risk of different colors of products is reduced, the yield is improved, and the cost of the die is reduced.
Description
Technical Field
The utility model relates to a hot runner equipment technical field, concretely relates to structure is chewed to heat.
Background
Hot runner nozzles are end parts of hot runner systems that deliver plastic melt delivered from a manifold to a mold cavity for injection molding into a product. Most importantly, the temperature of the front end of the hot nozzle determines whether a cold material exists in a glue opening or not and the color of a product, the cost of most of plastic products made of engineering materials is reduced, the requirements of the market on the products are higher and higher, the open type hot nozzle is required to be used for printing light-colored products or even white products, the requirements on a hot runner are higher and higher, and particularly the design requirement on the hot nozzle of the hot runner is higher.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the above-mentioned prior art, the utility model provides a structure is chewed to heat suitable for shallow colouring material of high temperature, its mould is with low costs, and production efficiency is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hot nozzle structure comprises an open frame, a nozzle body, a nozzle core and a shunt needle;
the mouth body is arranged inside the open frame, the heating sleeve is sleeved outside the mouth body, and a main flow passage which penetrates through the mouth body along the axial direction of the mouth body is arranged inside the mouth body;
the shunt needle and the nozzle core are respectively arranged inside the nozzle body, and the nozzle core is of a tubular structure; the upper part of the shunt needle is connected with the top of the chewing core, and the lower part of the shunt needle is positioned in the middle of the chewing core;
the lower end of the mouth core extends out of the mouth body and extends to be in contact with the lower end of the open frame; the lower end of the mouth core is provided with a chamfer and is matched with the lower end of the open frame.
Furthermore, the top of chewing the body outwards extends and is equipped with the support, open the upper end of frame and be equipped with stair structure and form the mount table, the support is located on the mount table.
Furthermore, the inner diameter of the upper part of the chewing core is gradually increased from bottom to top to form a horn mouth shape.
Furthermore, the middle part of the chewing core is sleeved with a chewing head, the upper part of the chewing head is positioned in the chewing body, the lower part of the chewing head is provided with an annular convex block along the radial direction, and the chewing body is positioned on the convex block.
Furthermore, the lower end of the opening frame is provided with a step mounting groove, and the lower end of the mouth head is arranged in the mounting groove.
Further, the reposition of redundant personnel needle is integrated into one piece spare, and it is located by water conservancy diversion pole and cover the reposition of redundant personnel block on water conservancy diversion pole upper portion becomes, be equipped with on the reposition of redundant personnel block along the reposition of redundant personnel hole that runs through from top to bottom that water conservancy diversion pole axial equidistant set up.
Furthermore, both ends of the guide rod are of a pointed structure.
Furthermore, the size of the two ends of the diversion hole along the radial direction of the diversion rod is smaller than the size of the middle part of the diversion hole along the radial direction of the diversion rod.
Compared with the prior art, the beneficial effects of the utility model are that: in the hot nozzle structure of the utility model, the nozzle head and the nozzle core are arranged close to the open frame, thus reducing the clearance between the nozzle head and the open frame and reducing the temperature loss at the front end of the hot nozzle; and the lower end of the chewing core is contacted with the lower end of the opening frame, so that the hidden glue between the chewing core and the opening frame is reduced, the risk of different colors of products is reduced, the yield is improved, and the cost of the die is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic sectional view of the mouthpiece according to the embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the shunt needle according to the embodiment of the present invention;
FIG. 4 is a schematic front and top view of a shunt needle in an embodiment of the present invention;
FIG. 5 is a schematic sectional view of a nozzle core according to an embodiment of the present invention;
fig. 6 is a schematic sectional view of the mouthpiece according to the embodiment of the present invention.
In the figure: 1-division frame, 2-chew body, 3-reposition of redundant personnel needle, 4-chew the head, 5-chew the core, 6-heating jacket pipe, 7-sprue, 8-support, 9-first installation cavity, 10-second installation cavity, 11-lug, 12-reposition of redundant personnel piece, 13-water conservancy diversion pole, 14-reposition of redundant personnel hole.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-6, a hot nozzle structure comprises an open frame 1, a nozzle body 2, a nozzle core 5 and a shunting needle 3;
specifically, the nozzle body 2 is arranged inside the opening frame 1, the heating sleeve 6 is sleeved outside the nozzle body, and the main flow passage 7 which penetrates through the nozzle body along the axial direction is arranged inside the nozzle body; the heating sleeve 6 is used for heating the plastic medium in the main flow channel 7 to keep the plastic medium at a constant temperature, so that the plastic medium is prevented from cooling and is ensured to flow normally;
the shunt needle 3 and the nozzle core 5 are respectively arranged inside the nozzle body 2, and the nozzle core 5 is of a tubular structure; the upper part of the shunt needle 3 is connected with the top of the chewing core 5, and the lower part is positioned in the middle of the chewing core 5; the shunting needle 3 is used for shunting the plastic medium in the main flow passage 7, slowing down the flow of the plastic medium and reducing the impact of the plastic medium on the nozzle core 5 and the open frame 1;
the lower end of the mouth core 5 extends out of the mouth body 2 and extends to be in contact with the lower end of the open frame 1, so that the gap between the mouth core and the open frame 1 is reduced, the heat loss of a plastic medium at the lower end of the mouth core 5 is reduced, the glue hiding between the mouth core and the open frame is reduced, and the reject ratio caused by color pollution during color changing is reduced;
the lower end of the chewing core 5 is provided with a chamfer and is matched with the lower end of the opening frame 1, so that the lower end of the chewing core 5 is more attached to the lower end of the opening frame 1, and the glue hiding between the lower end of the chewing core and the opening frame is further reduced.
Preferably, the top of the mouth body 2 extends outwards to form a support 8, the upper end of the open frame 1 is provided with a stepped structure to form an installation platform, and the support 8 is arranged on the installation platform; the upper end of the mouth body 2 is connected with the opening frame 1 through a bolt.
According to the utility model discloses an embodiment, the upper portion internal diameter of chewing core 5 is the horn mouth form by lower supreme crescent, further reduces the pressure of plastic medium, alleviates its impact to chewing core 5.
Optionally, the middle part of the mouth core 5 is sleeved with a mouth head 4, the upper part of the mouth head 4 is positioned in the mouth body 2, the lower part of the mouth head 4 is provided with an annular convex block 11 along the radial direction, and the mouth body 2 is positioned on the convex block 11; the mouth head 4 is used for reinforcing the mouth core 5, preventing the mouth core from deforming due to impact and enhancing the firmness of the mouth core.
Further, the lower extreme of opening frame 1 is equipped with the ladder mounting groove, and in the mounting groove was located to the lower extreme of chewing head 4, the mounting groove was used for carrying on spacingly chewing head 4, prevents that it from taking place to remove, influences normal production.
According to another embodiment of the present invention, the shunting needle 3 is an integrally formed part, which is composed of a diversion rod 13 and a shunting block 12 sleeved on the upper portion of the diversion rod 13, and the shunting block 12 is provided with vertically penetrating shunting holes 14 arranged at equal intervals along the axial direction of the diversion rod 13;
the plastic medium enters the nozzle core 5 from the main runner 7 through the branch holes 14 and then flows out from an outlet at the lower end of the open frame 1; the guide rod 13 is used for guiding the plastic medium; the horizontal cross section of the diversion holes 14 on the diversion block 12 can be circular, oval or other shapes, the present embodiment is configured as an oval, and three diversion holes are provided.
Furthermore, both ends of the diversion rod 13 are of a pointed structure, and the upper end of the diversion rod is provided with the pointed structure to reduce the pressure of the plastic medium during diversion and enable the plastic medium to smoothly enter the diversion hole; the lower end of the plastic frame is of a pointed structure so as to guide the plastic medium better, so that the plastic medium can smoothly flow out from the outlet at the lower end of the open frame, and the working efficiency is improved.
Furthermore, the size of the two ends of the diversion hole 14 along the radial direction of the diversion rod 13 is smaller than the size of the middle part of the diversion hole along the radial direction of the diversion rod 13, and the upper end of the middle structure can effectively relieve the flow of the plastic medium, so that the plastic medium can flow more smoothly and smoothly to enter the nozzle core 5 smoothly; the lower end of the plastic nozzle core can slow down the pressure of the plastic medium flowing into the nozzle core 5, increase the flow rate of the plastic medium and improve the working efficiency.
In the hot nozzle structure of the utility model, the nozzle head and the nozzle core are arranged close to the open frame, thus reducing the clearance between the nozzle head and the open frame and reducing the temperature loss at the front end of the hot nozzle; and the lower end of the chewing core is contacted with the lower end of the opening frame, so that the hidden glue between the chewing core and the opening frame is reduced, the risk of different colors of products is reduced, the yield is improved, and the cost of the die is reduced.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A hot nozzle structure is characterized by comprising an open frame, a nozzle body, a nozzle core and a shunting needle;
the mouth body is arranged inside the open frame, the heating sleeve is sleeved outside the mouth body, and a main flow passage which penetrates through the mouth body along the axial direction of the mouth body is arranged inside the mouth body;
the shunt needle and the nozzle core are respectively arranged inside the nozzle body, and the nozzle core is of a tubular structure; the upper part of the shunt needle is connected with the top of the chewing core, and the lower part of the shunt needle is positioned in the middle of the chewing core;
the lower end of the mouth core extends out of the mouth body and extends to be in contact with the lower end of the open frame; the lower end of the mouth core is provided with a chamfer and is matched with the lower end of the open frame.
2. The hot nozzle structure according to claim 1, wherein a support is extended outwardly from the top of the nozzle body, a stepped structure is provided at the upper end of the open frame and forms a mounting table, and the support is provided on the mounting table.
3. The hot nozzle structure according to claim 1, wherein the upper inner diameter of the nozzle core is gradually increased from bottom to top in a bell mouth shape.
4. A hot nozzle structure according to claim 1, wherein a nozzle tip is fitted around the middle of the nozzle core, the upper part of the nozzle tip is located inside the nozzle body, and an annular projection is provided on the lower part of the nozzle tip extending radially outward, the nozzle body being located on the projection.
5. A hot nozzle structure according to claim 4, wherein the lower end of the open frame is provided with a stepped mounting groove, and the lower end of the nozzle head is provided in the mounting groove.
6. The hot nozzle structure according to claim 1, wherein the distribution needle is an integrally formed member and comprises a guide rod and a distribution block sleeved on the upper portion of the guide rod, and the distribution block is provided with distribution holes which are arranged at equal intervals along the axial direction of the guide rod and penetrate vertically.
7. The hot nozzle structure according to claim 6, wherein both ends of the flow guide rod are of a pointed structure.
8. The hot nozzle structure according to claim 6, wherein the both ends of the diverging hole have a smaller dimension in the radial direction of the flow guide bar than a middle portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021366057.0U CN212860275U (en) | 2020-07-13 | 2020-07-13 | Hot nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021366057.0U CN212860275U (en) | 2020-07-13 | 2020-07-13 | Hot nozzle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212860275U true CN212860275U (en) | 2021-04-02 |
Family
ID=75214390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021366057.0U Active CN212860275U (en) | 2020-07-13 | 2020-07-13 | Hot nozzle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212860275U (en) |
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2020
- 2020-07-13 CN CN202021366057.0U patent/CN212860275U/en active Active
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