CN214687729U - Open heat of heat preservation heat balance is chewed - Google Patents
Open heat of heat preservation heat balance is chewed Download PDFInfo
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- CN214687729U CN214687729U CN202120804660.0U CN202120804660U CN214687729U CN 214687729 U CN214687729 U CN 214687729U CN 202120804660 U CN202120804660 U CN 202120804660U CN 214687729 U CN214687729 U CN 214687729U
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Abstract
The utility model relates to the technical field of heat nozzles, in particular to an open heat nozzle with heat preservation and heat balance, which comprises a heat nozzle body, a beryllium copper sleeve heater, a heat preservation sleeve and a plurality of tungsten copper nozzle cores, wherein the upper end of the heat nozzle body is axially provided with a first fixed disc, a main runner which is communicated with the first fixed disc is arranged in the heat nozzle body, the lower end of the heat nozzle body is provided with a plurality of inclined holes which are communicated with the main runner, the beryllium copper sleeve heater is sleeved on the periphery of the heat nozzle body, and the periphery of the beryllium copper sleeve heater is provided with a spiral groove; the conical glue outlet buffer can be formed after glue is discharged from the inclined holes, and the attractiveness of the glue inlet and the glue outlet of a product can be greatly guaranteed; the beryllium copper sleeve heater is used for coating the tungsten copper nozzle core inside, so that the loss of heat is prevented, and the temperature stability and the temperature sensing accuracy of the hot nozzle are greatly improved; the thermal nozzle structure is completely free of threads, and is matched with a beryllium copper heater and a tungsten copper nozzle core according to the principle of thermal expansion and cold contraction, so that interference fit is achieved, and the perfect glue sealing effect is completely achieved.
Description
Technical Field
The utility model belongs to the technical field of the heat is chewed and specifically relates to a heat preservation heat balance open heat is chewed.
Background
In the molding of plastic products, the injection mold already occupies a very important position, and in the structural design of the injection mold, in order to ensure that the plastic material is kept in a liquid state before being injected into a cavity, a hot runner system is arranged on the injection mold, and the liquid injection material in a runner is not solidified all the time in a heating mode, so that the hot runner system is widely applied to developed countries and regions of various industries in the world at present; the hot structure of chewing has been used to among the hot runner system, and at present, traditional hot structure of chewing has some problems:
one is as follows: the glue outlets of the traditional hot nozzle are generally used for discharging glue through three inclined holes, so that under the conditions of unstable temperature and too high glue injection speed, the product is easy to have marks similar to a galloping car logo, and the attractiveness of the product is influenced; the second step is as follows: the traditional hot nozzle is formed by wrapping a heating wire with a spring ring structure outside, so that the heat of the traditional hot nozzle is easy to diffuse, the temperature is unstable, and the heat loss is large; and thirdly: the traditional hot nozzle has the structure that the tungsten-copper nozzle core in the nozzle sleeve screw tooth locking body is sealed, and the screw tooth is easy to loosen, so that the condition of glue leakage can be caused; there is a need to provide a solution to the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
An open heat nozzle with heat preservation and heat balance; the heat pipe comprises a heat nozzle body, a beryllium copper sleeve heater, a heat insulation sleeve and a plurality of tungsten copper nozzle cores, wherein a first fixed disc is axially arranged at the upper end of the heat nozzle body, a main flow passage penetrating through the first fixed disc is arranged in the heat nozzle body, a plurality of inclined holes communicated with the main flow passage are arranged at the lower end of the heat nozzle body, the beryllium copper sleeve heater is sleeved on the periphery of the heat nozzle body, a spiral groove is arranged on the periphery of the beryllium copper sleeve heater, a heating wire is attached to the spiral groove, a second fixed disc is arranged at the lower end of the beryllium copper sleeve heater, an interference connecting hole for fixing the tungsten copper nozzle core is arranged at the lower end of the second fixed disc, and the tungsten copper nozzle core is in interference fit with the interference connecting hole; a conical groove is arranged in the middle of the lower end of the second fixed disc in a penetrating mode, and a buffering passageway butted between the inclined hole and the tungsten copper nozzle core is formed in the side wall of the conical groove; the heat preservation sleeve is arranged between the first fixed disk and the second fixed disk, and a gap is formed between the inner wall of the heat preservation sleeve and the outer wall of the beryllium copper sleeve heater.
Preferably, the upper end of the insulating sleeve is provided with a wire passing port, the upper end of the spiral groove is provided with a wire passing pipe, and the wire passing pipe extends out of the outer side of the insulating sleeve along the wire passing port.
Preferably, two tungsten copper nozzle cores are arranged, and the two tungsten copper nozzle cores are symmetrical to each other along the axis of the hot nozzle body.
Preferably, a connecting column for butting the interference connecting hole is arranged on the tungsten copper nozzle core, the connecting column comprises an interference part at the lower end and a connecting part at the upper end, an inclined guide surface is arranged between the interference part and the connecting part, the connecting part is in clearance fit with the interference connecting hole, and the interference part is in interference fit with the interference connecting hole.
Preferably, the lower end of the first fixed disk is axially formed with a first limiting ring, the upper end of the second fixed disk is axially formed with a second limiting ring, the upper end of the inner wall of the heat-insulating sleeve is formed with a third limiting ring matched with the first limiting ring, and the lower end of the inner wall of the heat-insulating sleeve is formed with a fourth limiting ring matched with the second limiting ring.
Preferably, gaps are formed among the upper end of the beryllium copper sleeve heater, the first limiting ring and the third limiting ring.
Preferably, the lower extreme of sprue is provided with the arcwall face, and the intercommunication position between sprue and the inclined hole is located the arcwall face.
Compared with the prior art, the beneficial effects of the utility model are that:
the conical glue outlet buffer can be formed after glue is discharged from the inclined holes, and the attractiveness of the glue inlet and the glue outlet of a product can be greatly guaranteed;
the beryllium copper sleeve heater is used for coating the tungsten copper nozzle core inside, so that the loss of heat is prevented, and the temperature stability and the temperature sensing accuracy of the hot nozzle are greatly improved;
the thermal nozzle structure is completely free of threads, and is matched with a beryllium copper heater and a tungsten copper nozzle core according to the principle of thermal expansion and cold contraction, so that interference fit is achieved, and the perfect glue sealing effect is completely achieved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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 these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
fig. 3 is a schematic cross-sectional structure of the present invention;
fig. 4 is a schematic diagram of the structure of fig. 3 a according to the present invention;
fig. 5 is a schematic structural view of the chewing core of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, in an embodiment of the present invention, an open heat nozzle with heat preservation and heat balance; the heat-preserving device comprises a heat nozzle body 10, a beryllium copper sleeve heater 20, a heat-preserving sleeve 30 and a plurality of tungsten copper nozzle cores 40, wherein a first fixing disc 11 is axially arranged at the upper end of the heat nozzle body 10, a main flow passage 12 penetrating through the first fixing disc 11 is arranged in the heat nozzle body 10, a plurality of inclined holes 13 communicated with the main flow passage 12 are arranged at the lower end of the heat nozzle body 10, the beryllium copper sleeve heater 20 is sleeved on the periphery of the heat nozzle body 10, a spiral groove 21 is arranged on the periphery of the beryllium copper sleeve heater 20, a heating wire (shown in the figure) is attached to the spiral groove 21, a second fixing disc 22 is arranged at the lower end of the beryllium copper sleeve heater 20, an interference connecting hole 23 for fixing the tungsten copper nozzle core 40 is arranged at the lower end of the second fixing disc 22, and the tungsten copper nozzle cores 40 are in interference fit with the interference connecting hole 23; a conical groove 24 is arranged at the middle position of the lower end of the second fixed disc 22 in a penetrating way, and a buffering passageway 25 butted between the inclined hole 13 and the tungsten copper nozzle core 40 is arranged on the side wall of the conical groove 24; the thermal insulation sleeve 30 is arranged between the first fixing disc 11 and the second fixing disc 22, and a space is reserved between the inner wall of the thermal insulation sleeve 30 and the outer wall of the beryllium copper sleeve heater 20.
In the technical scheme, the first fixing disc 11 is axially arranged at the upper end of the heat nozzle body 10, the second fixing disc 22 is arranged at the lower end of the beryllium copper sleeve heater 20, the heat nozzle body 10, the beryllium copper sleeve heater 20 and the heat insulation sleeve 30 are fixedly installed, the through conical groove 24 is arranged at the lower end of the second fixing disc 22, and then the buffer passageway 25 is arranged to be in butt joint with the inclined hole 13 and the tungsten copper nozzle core 40; the beryllium copper sleeve heater 20 is used for coating the tungsten copper nozzle core 40 inside, so that the loss of heat is prevented, and the temperature stability and the temperature sensing accuracy of the heat nozzle are greatly improved; the thermal nozzle structure has no screw thread, and is matched by using the principle of thermal expansion and cold contraction between the beryllium copper heater and the tungsten copper nozzle core 40 to achieve interference fit, thereby completely achieving the effect of perfect sealing glue.
Further, as shown in fig. 2, a wire passing opening 31 is formed at the upper end of the thermal insulation sleeve 30, a wire passing pipe 26 is arranged at the upper end of the spiral groove 21, and the wire passing pipe 26 extends out of the thermal insulation sleeve 30 along the wire passing opening 31.
As further shown in fig. 1, 3 and 4, two tungsten-copper chewing cores 40 are provided, and the two tungsten-copper chewing cores 40 are symmetrical to each other along the axis of the hot nozzle body 10.
As further shown in fig. 4-5, a connecting column 41 for butting the interference connecting hole 23 is arranged on the tungsten-copper nozzle core 40, the connecting column 41 comprises an interference part 42 at the lower end and a connecting part 43 at the upper end, an inclined guide surface 44 is arranged between the interference part 42 and the connecting part 43, the connecting part 43 is in clearance fit with the interference connecting hole 23, and the interference part 42 is in interference fit with the interference connecting hole 23; in this embodiment, the interference fit between the interference connection hole 23 and the tungsten-copper nozzle core 40 can be facilitated by providing the interference portion 42 and the connection portion 43 and providing the inclined guide surface 44 between the interference portion 42 and the connection portion 43.
As further shown in fig. 3-4, a first limiting ring 111 is axially formed at the lower end of the first fixing plate 11, a second limiting ring 221 is axially formed at the upper end of the second fixing plate 22, a third limiting ring 32 matched with the first limiting ring 111 is formed at the upper end of the inner wall of the heat-insulating sleeve 30, and a fourth limiting ring 33 matched with the second limiting ring 221 is formed at the lower end of the inner wall of the heat-insulating sleeve 30; by the design, the inner wall of the insulation sleeve 30 is spaced from the outer wall of the beryllium copper sleeve heater 20.
As further shown in fig. 3, gaps are formed between the upper end of the beryllium copper sleeve heater 20 and the first and third spacing rings 111 and 32; the heat conduction capacity of the upper end of the heat insulation sleeve 30 is reduced, and the heat insulation effect is enhanced.
As further shown in fig. 4, an arc-shaped surface 121 is disposed at a lower end of the main flow channel 12, a communication position between the main flow channel 12 and the inclined hole 13 is located on the arc-shaped surface 121, and a certain buffering effect can be achieved by disposing the arc-shaped surface 121.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. A heat preservation heat balance open type heat nozzle is characterized by comprising a heat nozzle body, a beryllium copper sleeve heater, a heat preservation sleeve and a plurality of tungsten copper nozzle cores, wherein a first fixed disc is axially arranged at the upper end of the heat nozzle body; a conical groove is arranged in the middle of the lower end of the second fixed disc in a penetrating mode, and a buffering passageway butted between the inclined hole and the tungsten copper nozzle core is formed in the side wall of the conical groove; the heat preservation sleeve is arranged between the first fixed disk and the second fixed disk, and a gap is formed between the inner wall of the heat preservation sleeve and the outer wall of the beryllium copper sleeve heater.
2. The heat-preserving heat-balancing open type heat nozzle as claimed in claim 1, wherein the upper end of the heat-preserving sleeve is provided with a wire passing port, the upper end of the spiral groove is provided with a wire passing pipe, and the wire passing pipe extends out of the outer side of the heat-preserving sleeve along the wire passing port.
3. A heat retaining heat balancing open heat nozzle as claimed in claim 1, in which there are two tungsten copper nozzle cores, the two tungsten copper nozzle cores being symmetrical to each other along the axis of the heat nozzle body.
4. A heat preservation heat balance open type heat nozzle according to any one of claims 1 to 3, characterized in that a connecting column for butting interference connecting holes is arranged on the tungsten copper nozzle core, the connecting column comprises an interference part at the lower end and a connecting part at the upper end, an inclined guide surface is arranged between the interference part and the connecting part, the connecting part is in clearance fit with the interference connecting holes, and the interference part is in interference fit with the interference connecting holes.
5. The heat-preserving heat-balancing open type heat nozzle as claimed in claim 1, wherein a first limit ring is axially formed at the lower end of the first fixed disk, a second limit ring is axially formed at the upper end of the second fixed disk, a third limit ring matched with the first limit ring is formed at the upper end of the inner wall of the heat-preserving sleeve, and a fourth limit ring matched with the second limit ring is formed at the lower end of the inner wall of the heat-preserving sleeve.
6. A heat insulating heat balance open heat nozzle as claimed in claim 5, in which there is a gap between the upper end of the beryllium copper sleeve heater and the first and third retaining rings.
7. A heat retaining heat balance open heat nozzle according to claim 1, characterised in that the lower end of the main runner is provided with an arc-shaped surface, and the communication position between the main runner and the inclined hole is located on the arc-shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120804660.0U CN214687729U (en) | 2021-04-20 | 2021-04-20 | Open heat of heat preservation heat balance is chewed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120804660.0U CN214687729U (en) | 2021-04-20 | 2021-04-20 | Open heat of heat preservation heat balance is chewed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214687729U true CN214687729U (en) | 2021-11-12 |
Family
ID=78532271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120804660.0U Active CN214687729U (en) | 2021-04-20 | 2021-04-20 | Open heat of heat preservation heat balance is chewed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214687729U (en) |
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2021
- 2021-04-20 CN CN202120804660.0U patent/CN214687729U/en active Active
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