CN215969876U - Special material needle valve hot runner forming die - Google Patents
Special material needle valve hot runner forming die Download PDFInfo
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- CN215969876U CN215969876U CN202121773076.XU CN202121773076U CN215969876U CN 215969876 U CN215969876 U CN 215969876U CN 202121773076 U CN202121773076 U CN 202121773076U CN 215969876 U CN215969876 U CN 215969876U
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Abstract
The utility model relates to the technical field of hot nozzles, in particular to a special material needle valve hot runner forming die which comprises a panel, a hot runner plate, a heating plate and a die core plate which are fixedly connected in sequence, wherein a heat insulation plate is arranged between the hot runner plate and the heating plate; the hot runner plate is internally provided with an installation cavity, a splitter plate is fixedly installed in the installation cavity, and the outer peripheral side of the splitter plate and the cavity wall of the installation cavity are arranged at intervals; the bottom surface of the flow distribution plate is in threaded connection with at least one vertically arranged hot nozzle component, and each hot nozzle component is inserted into the heat insulation plate, the heating plate and the mold core plate in sequence. Compared with the prior art, independently heat up the die core board through setting up the hot plate and heat up, can control the temperature of die core board accurately, in addition, separate with the heat insulating board between hot plate and the hot runner board, the temperature of hot plate can't pass to the hot runner board on to the temperature of having avoided the hot runner board causes the interference to the die core board, avoids the hot runner board degeneration.
Description
Technical Field
The utility model relates to the technical field of hot nozzles, in particular to a special material needle valve hot runner forming die.
Background
High-end electronic products, medical products, cosmetics, daily necessities and the like in the market are all prepared by color changing molding of amorphous or crystalline plastics, and the injection molding of the products is carried out by a hot runner which is suitable for high-temperature fiber engineering plastic materials or corrosive plastic materials. In practical applications, injection molding of these products requires a hot runner structure capable of precisely controlling temperature and a corrosion-resistant hot runner structure, and thus can be applied to mass production of products.
In practical applications, there are some forming molds with mold temperature higher than that of the hot runner, and if the forming mold is used for forming a special plastic with a higher cold-cutting forming temperature, due to the lower melting temperature of the special plastic, if the mold temperature cannot be precisely controlled, the forming time and the production efficiency of the special plastic material are affected. Referring to fig. 1, the conventional molding includes a panel 1, a splitter plate 2, a hot runner plate 3 and a mold core plate 4, which are sequentially disposed, the splitter plate 2 is embedded in the hot runner plate 3, and a hot nozzle 5 is installed in the hot runner plate 3 and the mold core plate 4. Such a mold has the following problems: because the hot runner plate 3 is directly contacted with the mold core plate 4, heat transfer can occur between the hot runner plate 3 and the mold core plate 4, the temperature of the hot runner plate 3 can interfere with the temperature of the mold core plate 4, and the temperature cannot be accurately controlled; in addition, since the hot nozzle 5 is directly in contact with the core plate 4 and the hot runner plate 3, respectively, the temperature of the hot nozzle 5 is also affected by the temperature of the core plate 4 or the hot runner plate 3.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special material needle valve hot runner forming die aiming at the defects in the prior art, and the problem of temperature interference can be solved by adopting the structure.
The purpose of the utility model is realized by the following technical scheme: the application provides a special material needle valve hot runner forming die which comprises a panel, a hot runner plate, a heating plate and a die core plate which are fixedly connected in sequence, wherein a heat insulation plate is arranged between the hot runner plate and the heating plate; the hot runner plate is internally provided with an installation cavity, a splitter plate is fixedly installed in the installation cavity, and the outer peripheral side of the splitter plate and the cavity wall of the installation cavity are arranged at intervals; the bottom surface of the flow distribution plate is in threaded connection with at least one vertically arranged hot nozzle component, and each hot nozzle component is inserted into the heat insulation plate, the heating plate and the mold core plate in sequence.
The heat insulation plate is provided with a plurality of mounting holes which are arranged at intervals, a cushion block is placed in each mounting hole, and the height of each cushion block is larger than or equal to the thickness of the heat insulation plate; in the assembled state, the top surface of the cushion block abuts against the bottom surface of the hot runner plate, and the bottom surface of the cushion block abuts against the top surface of the heating plate.
Wherein, the hot subassembly of chewing includes that the heat is chewed the body, and the upper end outside of the body is chewed to the heat is equipped with the external screw thread, and the bottom surface of flow distribution plate is equipped with the screw hole with external screw thread complex, and the upper end and the screw hole threaded connection of the body are chewed to the heat.
Wherein, the periphery side of the hot nozzle body is sleeved with a copper sleeve heater.
Wherein, the mold core board is provided with the heat supply and chews body bottom male mounting groove, and the tank bottom of mounting groove has been seted up and has been sealed the mouth, and the heat is chewed the body and is sealed a mouthful intercommunication setting.
Wherein, the peripheral side of the bottom end of the hot nozzle body is of a continuous step structure which is gradually narrowed.
The bottom end of the hot nozzle body is provided with a first insert, the first insert is sleeved at the bottom end of the hot nozzle body, and the first insert is provided with a through hole for the valve needle to penetrate out.
And a second insert is arranged between the inner bottom surface of the first insert and the hot nozzle body, and the second insert is sleeved at the bottom end of the hot nozzle body.
And a third insert is arranged between the outer side of the first insert and the mounting groove, and the third insert is sleeved at the bottom of the first insert.
The utility model has the beneficial effects that: compared with the prior art, the special material needle valve hot runner forming die has the advantages that the heating plate is arranged to independently heat the die core plate, so that the temperature of the die core plate can be accurately controlled, in addition, the heating plate and the hot runner plate are separated by the heat insulation plate, and the temperature of the heating plate cannot be transmitted to the hot runner plate, so that the interference of the temperature of the hot runner plate on the die core plate is avoided, and the denaturation of the hot runner plate is avoided; in addition, the hot nozzle assembly is in threaded connection with the splitter plate, and the splitter plate and the hot runner plate are arranged at intervals, so that the temperature of the hot runner plate is prevented from influencing the temperature of the splitter plate, the temperature of the hot runner plate is indirectly prevented from influencing the temperature of the hot nozzle assembly, and the purpose of accurately controlling the temperature of each part of the forming die is achieved.
Drawings
The utility model is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the utility model, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic structural view of a hot nozzle structure in the prior art.
Fig. 2 is a plan view of the special material needle valve hot runner molding die in the present embodiment.
Fig. 3 is a cross-sectional view taken at a-a in fig. 2.
Fig. 4 is a cross-sectional view at B-B in fig. 2.
Fig. 5 is a cross-sectional view at C-C in fig. 2.
Description of the drawings: the hot runner plate comprises a panel 1, a flow distribution plate 2, a hot runner plate 3, a mounting cavity 31, a mold core plate 4, a mounting groove 41, a glue sealing opening 42, a hot nozzle 5, a heating plate 6, a heat insulation plate 7, a mounting hole 71, a cushion block 72, a hot nozzle body 81, a copper sleeve heater 82, a first insert 83, a second insert 84, a third insert 85 and a continuous stepped structure 9.
Detailed Description
The utility model is further described with reference to the following examples.
Referring to fig. 2 to 5, the specific embodiment of the needle valve hot runner molding die for special materials of the present invention includes a panel 1, a hot runner plate 3, a heat insulation plate 7, a heating plate 6 and a mold core plate 4, which are fixedly connected in sequence. Specifically, the panel 1 is fixedly connected to the hot runner plate 3, the heat insulation plate 7 is clamped between the hot runner plate 3 and the heating plate 6, the heating plate 6 is fixedly connected to the hot runner plate 3, and the core plate 4 is fixedly connected to the hot runner plate 3.
As an improvement, please refer to fig. 3, a heat insulation plate 7 is arranged between the hot runner plate 3 and the heating plate 6, specifically, the heat insulation plate 7 is provided with a plurality of mounting holes 71 arranged at intervals, and a cushion block 72 is arranged in each mounting hole 71; in the assembled state, the top surface of the spacer 72 abuts against the bottom surface of the hot runner plate 3, and the bottom surface of the spacer 72 abuts against the top surface of the heating plate 6. The hot runner plate 3 and the heating plate 6 are provided with the cushion blocks 72 for supporting, so that the hot runner plate 3 or the heating plate 6 is prevented from directly extruding the heat insulation plate 7, the heat insulation plate 7 is prevented from being deformed due to long-time compression, and the change of the distance size between the hot nozzle assembly and the end face of the mold is avoided. It should be noted that the height of the spacer 72 is greater than or equal to the thickness of the insulating board 7.
As another improvement, an installation cavity 31 is arranged in the hot runner plate 3, the splitter plate 2 is fixedly installed in the installation cavity 31, and the outer peripheral side of the splitter plate 2 is arranged at an interval with the cavity wall of the installation cavity 31. The bottom surface of the flow distribution plate 2 is in threaded connection with four vertically arranged hot nozzle components, and each hot nozzle component is inserted into the heat insulation plate 7, the heating plate 6 and the mold core plate 4 in sequence. The hot subassembly of chewing passes through the thread to be fixed on flow distribution plate 2, and the hot subassembly of chewing is not with hot runner plate 3 direct contact, and hot runner plate 3 can not inhale away the hot subassembly temperature of chewing or inhale away flow distribution plate 2 temperature, and flow distribution plate 2 and hot nozzle can be more accurate control every local temperature. Specifically, the hot subassembly of chewing includes that the heat is chewed body 81, and the upper end outside of body 81 is chewed to the heat is equipped with the external screw thread, and the bottom surface of flow distribution plate 2 is equipped with the screw hole with external screw thread fit, and the upper end and the screw hole threaded connection of body 81 are chewed to the heat.
In this embodiment, in order to ensure the temperature of the heat nozzle body 81, a copper jacket heater 82 is provided around the outer peripheral side of the heat nozzle body 81.
In this embodiment, the mold core plate 4 is provided with a mounting groove 41 for inserting the bottom of the heat supply nozzle body 81, the bottom of the mounting groove 41 is provided with a sealing opening 42, and the heat supply nozzle body 81 is communicated with the sealing opening 42.
Referring to fig. 5, in order to prevent the temperature of hot nozzle body 81 from being transmitted to core plate 4 or to prevent the temperature of hot nozzle body 81 from being affected by the temperature of core plate 4, the outer peripheral side of the bottom end portion of hot nozzle body 81 is a continuous stepped structure 9 that gradually narrows. The bottom end of the hot nozzle body 81 is provided with a first insert 83, the first insert 83 is sleeved on the bottom end of the hot nozzle body 81, and the first insert 83 is provided with a through hole for the valve needle to penetrate out. A second insert 84 is arranged between the inner bottom surface of the first insert 83 and the hot nozzle body 81, and the second insert 84 is sleeved at the bottom end of the hot nozzle body 81. A third insert 85 is arranged between the outer side of the first insert 83 and the mounting groove 41, and the third insert 85 is sleeved at the bottom of the first insert 83. The bottom portion of body 81 is chewed to heat is provided with a plurality of range upon range of inserts, and a plurality of range upon range of inserts can adopt the not good material of thermal conductivity, also can use ordinary steel material to make the bottom temperature that body 81 was chewed to heat separate with 4 temperatures of mold core plate, avoid mutual interference, and in addition, a plurality of range upon range of inserts can also play the heat retaining effect of head temperature is chewed to heat.
Compared with the prior art, the special material needle valve hot runner forming die has the advantages that the heating plate 6 is arranged to independently heat the die core plate 4 for temperature rise, so that the temperature of the die core plate 4 can be accurately controlled, in addition, the heating plate 6 is separated from the hot runner plate 3 by the heat insulation plate 7, and the temperature of the heating plate 6 cannot be transmitted to the hot runner plate 3, so that the interference of the temperature of the hot runner plate 3 on the die core plate 4 is avoided, and the denaturation of the hot runner plate 3 is avoided; in addition, subassembly threaded connection is chewed to the heat is on flow distribution plate 2 to flow distribution plate 2 and the interval of hot runner plate 3 set up, avoided the temperature of hot runner plate 3 to cause the influence to the temperature of flow distribution plate 2, indirectly avoided the temperature of hot runner plate 3 to cause the influence to the temperature of subassembly is chewed to the heat, thereby reach the purpose of each part temperature of accurate control forming die.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The utility model provides a special material needle valve hot runner forming die which characterized in that: the hot runner plate comprises a panel, a hot runner plate, a heating plate and a mold core plate which are fixedly connected in sequence, wherein a heat insulation plate is arranged between the hot runner plate and the heating plate;
an installation cavity is arranged in the hot runner plate, a splitter plate is fixedly installed in the installation cavity, and the outer peripheral side of the splitter plate and the cavity wall of the installation cavity are arranged at intervals;
the bottom surface of the flow distribution plate is in threaded connection with at least one vertically-arranged hot nozzle assembly, and the hot nozzle assemblies are sequentially inserted into the heat insulation plate, the heating plate and the mold core plate.
2. The special material needle valve hot runner molding die of claim 1, wherein: the heat insulation plate is provided with a plurality of mounting holes which are arranged at intervals, a cushion block is placed in each mounting hole, and the height of each cushion block is greater than or equal to the thickness of the heat insulation plate;
in an assembly state, the top surface of the cushion block abuts against the bottom surface of the hot runner plate, and the bottom surface of the cushion block abuts against the top surface of the heating plate.
3. The special material needle valve hot runner molding die of claim 1, wherein: the hot component of chewing includes that the heat is chewed the body, the upper end outside of body is chewed to the heat is equipped with the external screw thread, the bottom surface of flow distribution plate is equipped with the screw hole with external screw thread complex, the upper end and the screw hole threaded connection of body are chewed to the heat.
4. The special material needle valve hot runner molding die of claim 3, wherein: the periphery of the hot nozzle body is sleeved with a copper sleeve heater.
5. The special material needle valve hot runner molding die of claim 3, wherein: the die core plate is provided with a mounting groove for inserting the bottom of the heat nozzle body, the bottom of the mounting groove is provided with a glue sealing opening, and the heat nozzle body is communicated with the glue sealing opening.
6. The special material needle valve hot runner molding die of claim 5, wherein: the periphery side face of the bottom end part of the hot nozzle body is of a continuous stepped structure which is gradually narrowed.
7. The special material needle valve hot runner molding die of claim 6, wherein: the bottom of the body is chewed to heat is equipped with first mold insert, first mold insert cover is established the bottom of the body is chewed to heat, first mold insert is seted up and is supplied the through-hole that the needle wore out.
8. The special material needle valve hot runner molding die of claim 7, wherein: and a second insert is arranged between the inner bottom surface of the first insert and the hot nozzle body, and the second insert is sleeved at the bottom end of the hot nozzle body.
9. The special material needle valve hot runner molding die of claim 7, wherein: and a third insert is arranged between the outer side of the first insert and the mounting groove, and the third insert is sleeved at the bottom of the first insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121773076.XU CN215969876U (en) | 2021-07-30 | 2021-07-30 | Special material needle valve hot runner forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121773076.XU CN215969876U (en) | 2021-07-30 | 2021-07-30 | Special material needle valve hot runner forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215969876U true CN215969876U (en) | 2022-03-08 |
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ID=80515563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121773076.XU Active CN215969876U (en) | 2021-07-30 | 2021-07-30 | Special material needle valve hot runner forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215969876U (en) |
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2021
- 2021-07-30 CN CN202121773076.XU patent/CN215969876U/en active Active
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