CN210257019U - Cold-proof material structure for high-molecular injection device - Google Patents
Cold-proof material structure for high-molecular injection device Download PDFInfo
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- CN210257019U CN210257019U CN201920829316.XU CN201920829316U CN210257019U CN 210257019 U CN210257019 U CN 210257019U CN 201920829316 U CN201920829316 U CN 201920829316U CN 210257019 U CN210257019 U CN 210257019U
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Abstract
A cold-proof material structure for a high-molecular injection device comprises a mould and a mould locking head plate which are mutually matched and connected, and also comprises an injection nozzle, a heating component, a flange and a melt which are arranged on the mould locking head plate; the mold is tightly attached to the nozzle, the outer diameter of the nozzle is at least partially identical to that of the flange, at least part of the front end of the flange extends into the rear end of the nozzle and is fixedly connected with the rear end of the nozzle, the heating assembly is arranged on the outer diameters of the nozzle and the flange, and a hot needle is arranged inside the nozzle; the fusant is positioned in the nozzle and the flange, and the injection temperature is ensured through the heating of the heating component and the enthalpy of the nozzle, the fusant and the hot needle. The utility model discloses an improvement of above-mentioned structure, it is reasonable to have simple structure, excellent performance, convenient to use, low in manufacturing cost, easy production, easy realization, cooling effect are good, the yields is high and safe and reliable.
Description
Technical Field
The utility model relates to a prevent cold material structure for polymer jetter.
Background
The high polymer material machine is a mechanical device for forming high polymer materials, belongs to high-grade rapid forming equipment, and has the working characteristics of long-term continuous operation, after the high polymer materials are melted, the high polymer materials are injected into a forming die at high speed and high pressure through a flow channel and a small aperture outlet of an injection device, the injection device is precisely jointed with the die for a long time, most of the conditions are that the temperature of the die is lower than the temperature of a nozzle, the temperature of the die is lower than the temperature of a melt, so that the die absorbs the heat of the nozzle, and a heating ring on the nozzle has low power (or has no heating ring) so as not to supplement the heat, so that the temperature of the nozzle is reduced, the melt at the front end of the nozzle forms a cold material, the cold material is shot into a product to form obvious cold material spots or melting trace marks, when the product is required to be high, the cold material needs to be firstly injected, the product is made.
As shown in fig. 1, the polymer injection device of the conventional structure includes a mold 1 ', a nozzle 2 ', a nozzle heat-generating ring 3 ', a mold clamping plate 4 ', a flange heat-generating ring 5 ', a flange 6 ', a flange, and a melt 7 ' in the nozzle.
Generally, the temperature of the mold 1 'is about 80 ℃ and rarely exceeds 120 ℃, while the molding temperature of the general melt 7' basically exceeds 200 ℃, so that the temperature difference is dozens of degrees, and sometimes more than 200 ℃. When the injection molding machine works, the mold 1 'is tightly attached to the injection nozzle 2', the injection nozzle 2 'is provided with the injection nozzle heating ring 3', but the diameter of the injection nozzle 2 'is small, so that the power of the injection nozzle heating ring 3' is not high, generally, the power is only about dozens of watts (the heating ring is generally 3.8W/square centimeter), meanwhile, the taper part of the front end of the injection nozzle is in contact with the low-temperature mold 1 ', the heating ring cannot be arranged, so that the temperature difference cannot be compensated by the thermal capacity of the injection nozzle 2' and the heating value of the injection nozzle heating ring 3 ', cold materials exist at the joint of the mold 1' and the injection nozzle 2 ', namely, the front end of the melt 7' has lower temperature, and the influence performance and the appearance of the injected product are not good, so that the finished product is unqualified.
Therefore, further improvements are necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure is reasonable, the performance is excellent, convenient to use, low in manufacturing cost, easy production, easy realization, cooling effect are good, yields is high and safe and reliable's anti cold material structure for polymer injection apparatus to overcome the weak point among the prior art.
A prevent cold material structure for polymer injection apparatus who designs according to this purpose, including the mould and the die locking head board that mutually support and connect, its characterized in that: the mold clamping head plate is characterized by also comprising a nozzle, a heating component, a flange and a melt, wherein the nozzle, the heating component, the flange and the melt are arranged on the mold clamping head plate; the mold is tightly attached to the nozzle, the outer diameter of the nozzle is at least partially identical to that of the flange, at least part of the front end of the flange extends into the rear end of the nozzle and is fixedly connected with the rear end of the nozzle, the heating assembly is arranged on the outer diameters of the nozzle and the flange, and a hot needle is arranged inside the nozzle; the fusant is positioned in the nozzle and the flange, and the injection temperature is ensured through the heating of the heating component and the enthalpy of the nozzle, the fusant and the hot needle.
The front part of the injection nozzle is tightly attached to the mold, and the outer diameter of the middle part and/or the rear part of the injection nozzle is the same as that of the front part and/or the middle part of the flange; the heating component is arranged on the outer diameter of the middle part and/or the rear part of the nozzle and the outer diameter of the front part and/or the middle part of the flange, and transmits heat energy towards the direction of the nozzle and the flange.
The hot needle is arranged at the front end of the inner part of the nozzle.
The front part and/or the middle part of the hot needle at least partially extend into the interior of the mould, and the middle part and/or the back part at least partially extend into the interior of the flange.
The heating component is arranged on the outer diameter of the middle part and/or the rear part of the nozzle and the outer diameter of the front part and/or the middle part of the flange, transmits heat energy towards the inside of the nozzle and the inside of the flange respectively, and transfers the heat energy to the hot needle through the matching of the nozzle and the flange.
The mold and the nozzle are made of metal materials respectively.
The utility model discloses an improvement of above-mentioned structure utilizes the enthalpy of the inside hot needle of mouth and the outside form that improves the energy, keeps the temperature of polymer fuse-element.
Specifically, the outer diameter of the nozzle is enlarged, at least part of the nozzle is the same as the outer diameter of the flange, the heating power of the heating component is increased, and the heating component is arranged on the outer diameters of the nozzle and the flange, so that the heat generated by the heating component can be better transmitted to the inside of the nozzle and the flange, and therefore, the melt in the nozzle and the flange can ensure the ejection temperature through the heating of the heating component; and the position that is close to the mould in the inside of penetrating the mouth is provided with the hot needle, and the heat that heating element produced can pass through the cooperation of penetrating mouth and flange and transmit to the hot needle, makes the temperature of hot needle can reach the temperature of settlement, consequently, the fuse-element accessible of penetrating mouth and mould contact portion penetrates the mouth, fuse-element and the heat enthalpy of hot needle and guarantees the injection temperature to guarantee that the fuse-element temperature that is in the nozzle front end is unchangeable, thereby reaches ideal injection temperature value, makes the performance, quality and the outward appearance of the product of beating obtain great improvement.
Compared with the prior art, the problem that the product performance, the quality and the appearance are influenced due to the fact that the temperature of the high polymer melt is reduced when the high polymer melt passes through the nozzle runner and the product forms cold material spots is effectively solved, so that the production cost is saved, and the yield is improved.
In summary, the cooling device has the advantages of simple and reasonable structure, excellent performance, convenient use, low manufacturing cost, easy production, easy realization, good cooling effect, high yield, safety and reliability.
Drawings
FIG. 1 is a schematic structural diagram of a polymer injection device in the prior art.
Fig. 2 is a schematic structural diagram of the first embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 2 and 3, the cold-proof structure for a polymer injection device comprises a mold 1 and a mold clamping head plate 3 which are mutually matched and connected, and further comprises a nozzle 2, a heating assembly 4, a flange 5 and a melt 6 which are arranged on the mold clamping head plate 3; the mold 1 and the nozzle 2 are made of metal materials respectively and are tightly attached to each other, the outer diameter of the nozzle 2 is at least partially identical to that of the flange 5, at least part of the front end of the flange 5 extends into the rear end of the nozzle 2 and is fixedly connected with the flange 5, the heating assembly 4 is arranged on the outer diameters of the nozzle 2 and the flange 5, and a hot needle 7 is arranged inside the nozzle 2; the melt 6 is positioned in the nozzle 2 and the flange 5, and the ejection temperature is ensured by the heat generation of the heating component 4 and the heat enthalpy of the nozzle 2, the melt 6 and the hot needle 7.
Further, the front part of the nozzle 2 is tightly attached to the mold 1, and the outer diameter of the middle part and/or the rear part of the nozzle 2 is the same as that of the front part and/or the middle part of the flange 5; the heating element 4 is arranged on the outer diameter of the middle and/or rear part of the nozzle 2 and the outer diameter of the front and/or middle part of the flange 5, and transmits heat energy towards the nozzle 2 and the flange 5.
Further, a hot needle 7 is provided at the inner front end of the nozzle 2.
Further, the hot pins 7 have a front portion and/or a middle portion extending at least partially into the interior of the mold 1 and a middle portion and/or a rear portion extending at least partially into the interior of the flange 5.
Further, the heat generating components 4 are disposed at the outer diameters of the middle and/or rear portion of the nozzle 2 and the front and/or middle portion of the flange 5, and transfer heat energy toward the inside of the nozzle 2 and the flange 5, respectively, and to the hot pins 7 by the cooperation of the nozzle 2 and the flange 5.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Also, the drawings are for illustrative purposes only and are presented as schematic illustrations only, not as physical illustrations, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Moreover, like or similar reference numerals in the drawings of the embodiments of the present invention correspond to like or similar parts; in the description of the present invention, it should be understood that, if there are any terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "longitudinal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is for convenience and simplicity, and it is not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limiting the present patent.
Claims (6)
1. The utility model provides an anti cold material structure for polymer injection apparatus, includes mould (1) and mode locking head board (3) that mutually support and connect, its characterized in that: the mold clamping head plate is characterized by further comprising a nozzle (2) arranged on the mold clamping head plate (3), a heating assembly (4), a flange (5) and a melt (6); the mold (1) is tightly attached to the nozzle (2), the outer diameter of the nozzle (2) is at least partially the same as that of the flange (5), at least part of the front end of the flange (5) extends into the rear end of the nozzle (2) and is fixedly connected with the rear end of the flange (5), the heating component (4) is arranged on the outer diameters of the nozzle (2) and the flange (5), and a hot needle (7) is arranged inside the nozzle (2); the melt (6) is positioned in the nozzle (2) and the flange (5), and the ejection temperature is ensured by the heating of the heating component (4) and the enthalpy of the nozzle (2), the melt (6) and the hot needle (7).
2. The cold-proof structure for a polymer injection device according to claim 1, wherein: the front part of the injection nozzle (2) is tightly attached to the mold (1), and the outer diameter of the middle part and/or the rear part of the injection nozzle (2) is the same as that of the front part and/or the middle part of the flange (5); the heating component (4) is arranged on the outer diameter of the middle part and/or the rear part of the nozzle (2) and the outer diameter of the front part and/or the middle part of the flange (5) and transmits heat energy towards the direction of the nozzle (2) and the flange (5).
3. The cold-proof structure for a polymer injection device according to claim 1, wherein: the hot needle (7) is arranged at the front end inside the nozzle (2).
4. The cold-proof structure for a polymer injection device according to claim 1 or 3, wherein: the front part and/or the middle part of the hot needle (7) at least partially extends into the interior of the mould (1), and the middle part and/or the rear part at least partially extends into the interior of the flange (5).
5. The cold-proof structure for a polymer injection device according to claim 4, wherein: the heating component (4) is arranged on the outer diameter of the middle part and/or the rear part of the nozzle (2) and the outer diameter of the front part and/or the middle part of the flange (5), transmits heat energy towards the inside of the nozzle (2) and the inside of the flange (5) respectively, and transfers the heat energy to the hot needle (7) through the matching of the nozzle (2) and the flange (5).
6. The cold-proof structure for a polymer injection device according to claim 1, 2, 3, or 5, wherein: the die (1) and the nozzle (2) are made of metal materials respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829316.XU CN210257019U (en) | 2019-05-31 | 2019-05-31 | Cold-proof material structure for high-molecular injection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829316.XU CN210257019U (en) | 2019-05-31 | 2019-05-31 | Cold-proof material structure for high-molecular injection device |
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| CN210257019U true CN210257019U (en) | 2020-04-07 |
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| CN201920829316.XU Active CN210257019U (en) | 2019-05-31 | 2019-05-31 | Cold-proof material structure for high-molecular injection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103404A (en) * | 2019-05-31 | 2019-08-09 | 广东伊之密精密注压科技有限公司 | A kind of anti-cold burden structure for macromolecule ejecting device |
-
2019
- 2019-05-31 CN CN201920829316.XU patent/CN210257019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103404A (en) * | 2019-05-31 | 2019-08-09 | 广东伊之密精密注压科技有限公司 | A kind of anti-cold burden structure for macromolecule ejecting device |
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