CN217621948U - Open type multi-head glue feeding nozzle - Google Patents
Open type multi-head glue feeding nozzle Download PDFInfo
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- CN217621948U CN217621948U CN202221429513.0U CN202221429513U CN217621948U CN 217621948 U CN217621948 U CN 217621948U CN 202221429513 U CN202221429513 U CN 202221429513U CN 217621948 U CN217621948 U CN 217621948U
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Abstract
The utility model relates to an injection moulding device technical field specifically discloses an open bull advances gluey nozzle, include: the nozzle comprises a nozzle body, wherein an accommodating cavity and a plurality of glue injection runners arranged around the accommodating cavity are formed in the nozzle body; the heating coil surrounds the outside of the nozzle body; the heat conduction insert is located in the accommodating cavity and used for improving the heat transfer speed inside the nozzle body. The utility model provides an open bull advances gluey nozzle can effectively solve current advance gluey nozzle and be applied to when carrying out the injecting glue scene of a plurality of pouring gates cost is higher and do the lower problem of big back central point department of putting temperature with nozzle body diameter size.
Description
Technical Field
The utility model relates to an injection moulding device technical field especially relates to an open bull advances gluey nozzle.
Background
The injection system generally includes a heating mechanism for melting the compound and a glue inlet nozzle for injecting the melted compound into a gate of the injection mold. Referring to fig. 1, the conventional glue injection nozzle includes:
the nozzle comprises a nozzle body 1, wherein a glue injection runner 101 is arranged in the nozzle body 1;
the nozzle core 5 is arranged at an outlet of the glue injection runner 101 through the sprue bush 6, and the nozzle core 5 is used for injecting glue to a sprue gate of an injection mold;
the heating coil 2 surrounds the outside of the nozzle body 1, and heat is provided for each glue injection runner 101 through the nozzle body 1 so as to prevent the glue from being cooled and solidified.
The existing glue inlet nozzle has the following problems:
(1) one heating coil 2 can only heat one glue injection runner 101, the heating efficiency is low, when glue injection is required to be performed on a plurality of pouring gates of an injection mold, a plurality of heating coils 2 are required, and the cost is high;
(2) if a plurality of glue injection runners 101 are arranged in the nozzle body 1, the diameter of the nozzle body 1 must be increased, otherwise, the distance between two adjacent nozzle cores 5 is too small, so that the nozzle cores 5 and the sprue bush 6 are easily broken; however, when the diameter of the nozzle body 1 is increased, the distance from the heat generating coil 2 to the center of the nozzle body 1 (i.e., the axis of the nozzle body 1) is increased, and the thermal conductivity of the nozzle body 1 itself is poor, so that the temperature at the center of the nozzle body is low, which tends to cause cold glue.
Therefore, the existing glue inlet nozzle needs to be improved so as to solve the problems that the manufacturing cost is high when the nozzle is applied to a glue injection scene with a plurality of pouring ports, and the temperature at the central position is low after the diameter size of the nozzle body is increased.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is currently known to one of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an open bull advances gluey nozzle, can effectively solve present advance gluey nozzle and be applied to when carrying out the injecting glue scene of a plurality of pouring gates cost is higher and do the lower problem of big back central point position department temperature with nozzle body diameter size.
To achieve the above object, the utility model provides an open bull advances gluey nozzle, include:
the nozzle comprises a nozzle body, wherein an accommodating cavity and at least two glue injection runners arranged around the accommodating cavity are arranged in the nozzle body;
the heating coil surrounds the outside of the nozzle body;
and the heat conduction insert is positioned in the accommodating cavity and used for improving the heat transfer speed in the nozzle body.
Optionally, the thermal conductivity of the thermal conductive insert is greater than that of the nozzle body.
Optionally, the heat-conducting insert is copper.
Optionally, a piece taking opening for communicating the accommodating cavity with the outer space of the nozzle body is formed in the bottom of the nozzle body;
the part taking opening can be used for the heat conduction insert to pass through.
Optionally, a limiting assembly for limiting the heat-conducting insert to pass through the part taking opening is arranged at the bottom of the nozzle body.
Optionally, the limiting assembly includes:
a platen spanning the take-out opening;
and each end of the pressure plate is fixedly connected with the bottom of the nozzle body through one flat-head bolt.
Optionally, the end of the pressure plate is of a bevel structure, and the bevel structure is pressed on the bottom of the nozzle body by the head of the flat head bolt.
Optionally, a nozzle core is arranged in each glue injection flow channel.
Optionally, the outside of the nozzle core is sleeved with a sprue bush for butt joint with an injection mold.
Optionally, each glue injection runner surrounds the heat conduction insert and is uniformly arranged at equal intervals.
The beneficial effects of the utility model reside in that, an open bull is advanced gluey nozzle is provided:
on one hand, a plurality of glue injection runners in the nozzle body can be heated only by using one heating coil, and further, each glue injection runner can inject glue into one sprue gate of the injection mold, so that the open multi-head glue injection nozzle provided by the utility model can meet the requirement of glue injection of multiple sprue gates by using one heating coil, and is beneficial to reducing the manufacturing cost;
on the other hand, the heat conduction insert is arranged at the central position of the nozzle body, so that the heat transfer speed in the nozzle body 1 can be increased, and the glue in the glue injection flow channel and the nozzle core is prevented from being cooled and solidified due to too low temperature.
Therefore, the utility model provides an open bull advances gluey nozzle can effectively solve current advance gluey nozzle and be applied to when carrying out the injecting glue scene of a plurality of pouring gates cost is higher and do the lower problem of big back central point department's temperature with nozzle body diameter size.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a conventional glue inlet nozzle provided in the background art.
FIG. 2 is a schematic diagram of an external structure of an open multi-head glue inlet nozzle provided in an embodiment;
FIG. 3 is a schematic diagram illustrating an internal structure of an open multi-head glue inlet nozzle according to an embodiment;
fig. 4 is a schematic structural diagram of a limiting assembly according to an embodiment.
In the figure:
100. an injection molded part;
1. a nozzle body; 101. injecting glue runner; 102. an accommodating cavity; 103. a glue inlet; 104. taking an opening;
2. a heat generating coil;
3. a jacket;
4. a heat-conducting insert;
5. a nozzle core;
6. a sprue bush;
7. a limiting component; 701. pressing a plate; 7011. a bevel structure; 702. a flat head bolt.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.
The utility model provides an open multi-head advances gluey nozzle is applicable to the application scene in injecting the molten sizing material to injection mold's sprue gate, and cost is higher and do the lower problem of big back central point department's temperature with nozzle body diameter size when it can effectively solve current advance gluey nozzle and be applied to the injecting glue scene that carries out a plurality of sprue gates.
Referring to fig. 2 and 3, the open type multi-head glue feeding nozzle provided by the embodiment includes a nozzle body 1, a heating coil 2, an outer sleeve 3, a heat conducting insert 4, a plurality of nozzle cores 5 and a plurality of nozzle sleeves 6. The nozzle comprises a nozzle body 1 and is characterized in that a glue inlet 103 is arranged at the top of the nozzle body 1, a containing cavity 102 and at least two glue injection runners 101 arranged around the containing cavity 102 are arranged inside the nozzle body 1, each glue injection runner 101 is converged into the glue inlet 103, a nozzle core 5 is arranged in each glue injection runner 101, and a sprue bush 6 used for being in butt joint with an injection mold is sleeved outside each nozzle core 5. The outer sleeve 3 is sleeved outside the nozzle body 1. The heating coil 2 surrounds the outside of the nozzle body 1 and is located between the nozzle body 1 and the outer sleeve 3, and is used for providing heat for the nozzle body 1. The heat conducting insert 4 is located in the receiving cavity 102, and is used for increasing the heat transfer speed inside the nozzle body 1.
It should be noted that, the present embodiment provides an open type multi-head glue inlet nozzle:
on one hand, the plurality of glue injection runners 101 in the nozzle body 1 can be heated only by using one heating coil 2, and further, each glue injection runner 101 can inject glue to one sprue gate of the injection mold, so that the open type multi-head glue injection nozzle provided by the embodiment meets the requirement of glue injection of multiple sprue gates by using one heating coil 2, and is beneficial to reducing the manufacturing cost;
on the other hand, the heat conduction insert is arranged at the central position of the nozzle body 1, so that the heat transfer speed in the nozzle body 1 can be increased, and the glue in the glue injection runner 101 and the nozzle core 5 is prevented from being cooled and solidified due to too low temperature.
Therefore, the utility model provides an open bull advances gluey nozzle can effectively solve current gluey nozzle and be applied to when carrying out the injecting glue scene of a plurality of pouring gates cost is higher and do the lower problem of big back central point department's temperature with nozzle body diameter size.
In this embodiment, the thermal conductivity of the thermal conductive insert 4 is greater than that of the nozzle body 1. For example, the nozzle body 1 is steel, and the heat conducting insert 4 is aluminum or red copper.
Referring to fig. 4, in the present embodiment, a piece taking opening 104 is formed at the bottom of the nozzle body 1 to communicate the accommodating cavity 102 with the external space of the nozzle body 1; the part-removing opening 104 is provided for the heat-conducting insert 4 to pass through. The bottom of the nozzle body 1 is provided with a limiting assembly 7 for limiting the heat-conducting insert 4 to pass through the part taking opening 104. Further, the limiting assembly 7 comprises a pressure plate 701 and two flat head bolts 702. The middle part of the pressing plate 701 spans the part taking opening 104 so as to at least partially shield the heat-conducting insert 4 and prevent the heat-conducting insert 4 from falling down through the part taking opening 104; each end of the pressure plate 701 is tightly connected with the bottom of the nozzle body 1 through one flat head bolt 702.
Generally, the nozzle body 1 has a small volume, and in order to improve the glue injection efficiency, the diameter of the glue injection flow passage 101 is maximized as much as possible, so that the installation space left for the pressure plate 701 is small. Since the pressure plate 701 is small in size, it is difficult to form bolt holes through which the flat head bolts 702 can pass in the pressure plate 701. In this embodiment, the end of the pressure plate 701 is a bevel structure 7011, and the head of the flat head bolt 702 presses the bevel structure 7011 against the bottom of the nozzle body 1. In this way, the pressure plate 701 can be fastened and attached to the bottom of the nozzle body 1 without forming bolt holes in the end of the pressure plate 701.
Optionally, the open bull is advanced gluey nozzle that this embodiment provided, the quantity of injecting glue runner 101 can be two, three, four or more even, the utility model discloses do not limit to this. Further, the glue injection runners 101 are uniformly arranged around the heat conduction insert 4 at equal intervals, so that the heat conduction insert 4 can uniformly release heat to the glue injection runners 101.
The open type multi-head glue inlet nozzle provided by the embodiment has the following advantages:
(1) the nozzle body has a larger diameter size, can accommodate a plurality of nozzle cores and sprue bushes at the same time, and can control the temperature of the nozzle cores by only using one heating coil and one controller, thereby reducing the cost of a hot runner.
(2) The multi-head glue inlet nozzle is used for replacing a plurality of traditional single-head glue inlet nozzles, the required space volume is effectively reduced, and small products are arranged;
(3) under special conditions, only one point of glue feeding is designed on one product, so that the appearance requirement of the product cannot be met, and glue feeding is needed at multiple points simultaneously;
(4) big hole is bored at nozzle body center, then inlay a red copper or the better heat conduction mold insert of heat conductivity again, the clearance fit is downthehole, push down the heat conduction mold insert with the clamp plate, prevent that the heat conduction mold insert from falling out, avoid because the nozzle body is too big, the heat that the outside heating coil of nozzle body produced can not be fine transmits the central point for the nozzle body and puts, cause the injecting glue runner local temperature to hang down, the problem of product injection moulding failure, the clamp plate is fixed on the nozzle body simultaneously, push up the injection moulding utensil, prevent injection moulding utensil because production time overlength, the head steel material is chewed to the heat less emergence that leads to the deformation condition.
(5) An elastic gasket is added at the top of the sprue bush, the elastic gasket is made of a material with high temperature resistance and good heat insulation, glue is sealed on the glue near the sprue, the elastic gasket is sealed once, and the sprue bush is sealed once, so that the condition that the glue sealing position of the sprue bush is inaccurate to process or is worn to cause dimension deviation and the glue enters the outer part of the nozzle body is prevented;
(6) when injecting glue, the head point of core is chewed in the control is not directly pushing against the bottom of sprue gate, but leaves the clearance, prevents sprue gate overheat and produces the wire drawing, and reduces the cooling time of sprue gate, and then reduces plastic product molding cycle, improves production efficiency.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. An open multi-head glue feeding nozzle is characterized by comprising:
the nozzle comprises a nozzle body, wherein an accommodating cavity and at least two glue injection runners arranged around the accommodating cavity are arranged in the nozzle body;
the heating coil surrounds the outside of the nozzle body;
the heat conduction insert is located in the accommodating cavity and used for improving the heat transfer speed inside the nozzle body.
2. The open multi-headed glue-feeding nozzle according to claim 1, wherein the thermal conductivity of the thermally conductive insert is greater than that of the nozzle body.
3. The open multi-head glue-feeding nozzle according to claim 2, wherein the heat-conducting insert is red copper.
4. The open type multi-head glue feeding nozzle according to claim 1, wherein a part taking opening communicating the accommodating cavity to an outer space of the nozzle body is formed at the bottom of the nozzle body;
the part taking opening can be used for the heat conduction insert to pass through.
5. The open multi-head glue feeding nozzle according to claim 4, wherein a limiting assembly for limiting the heat-conducting insert from passing through the part taking opening is arranged at the bottom of the nozzle body.
6. The open multi-head glue inlet nozzle according to claim 5, wherein the limiting assembly comprises:
a platen spanning the pick-up opening;
and each end of the pressure plate is fixedly connected with the bottom of the nozzle body through one flat-head bolt.
7. The open type multi-head glue feeding nozzle according to claim 6, wherein the end of the pressure plate is a bevel structure, and the head of the flat head bolt presses the bevel structure against the bottom of the nozzle body.
8. The open multi-head glue inlet nozzle according to claim 1, wherein a nozzle core is arranged in each glue injection flow channel.
9. The open multi-head glue feeding nozzle according to claim 8, wherein a sprue bush for butting with an injection mold is sleeved outside the nozzle core.
10. The open multi-head glue inlet nozzle according to claim 1, wherein the glue injection flow passages are uniformly arranged around the heat conducting insert at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221429513.0U CN217621948U (en) | 2022-06-09 | 2022-06-09 | Open type multi-head glue feeding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221429513.0U CN217621948U (en) | 2022-06-09 | 2022-06-09 | Open type multi-head glue feeding nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217621948U true CN217621948U (en) | 2022-10-21 |
Family
ID=83625380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221429513.0U Active CN217621948U (en) | 2022-06-09 | 2022-06-09 | Open type multi-head glue feeding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217621948U (en) |
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2022
- 2022-06-09 CN CN202221429513.0U patent/CN217621948U/en active Active
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