CN215512089U - Hot nozzle structure in hot runner system - Google Patents
Hot nozzle structure in hot runner system Download PDFInfo
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- CN215512089U CN215512089U CN202121694377.3U CN202121694377U CN215512089U CN 215512089 U CN215512089 U CN 215512089U CN 202121694377 U CN202121694377 U CN 202121694377U CN 215512089 U CN215512089 U CN 215512089U
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Abstract
The utility model belongs to the technical field of injection molding hot nozzles, and particularly relates to a hot nozzle structure in a hot runner system. The utility model comprises a mould main body, wherein a heat flow guide plate is arranged on the mould main body, a cavity is arranged in the mould main body, and a high heat transfer sealed type point gate hot nozzle assembly extending into the mould main body is arranged on the heat flow guide plate. According to the utility model, the high heat transfer sealed type point gate hot nozzle assembly is arranged, and a non-direct contact mounting structure is adopted, so that the hot nozzle is prevented from being in direct contact with the inner wall of the mold, the molten material can be enabled to have better transfer temperature in the injection molding process, the appearance defects of epitome, mottling and the like caused by insufficient heat transfer on the surface of a product in the mold production process are greatly overcome, the sealing effect is enhanced, the occurrence of mold leakage is reduced, the production efficiency of the mold is improved, the raw materials and the labor force are saved, the product quality is improved, and the service life of the mold is prolonged.
Description
Technical Field
The utility model belongs to the technical field of injection molding hot nozzles, and relates to a hot nozzle structure in a hot runner system.
Background
When the traditional point-pouring gate hot nozzle is used, particularly when the temperature requirement of PC (polycarbonate) is high, the situation of insufficient heat transfer is easy to occur in the injection molding process, so that various surface defects such as a miniature, a mottled and the like are generated on a plastic part, the efficiency is reduced, the production cost is improved, and the appearance, the quality and the rigidity of a product after one-step molding can not meet the requirements of customers.
In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses a hot runner hot nozzle [ application No.: 201510613568.5], comprising a hot nozzle core and a hot nozzle sleeve, wherein the hot nozzle core is provided with a flow channel for plastic to pass through, and the front end of the hot nozzle core is provided with a first glue opening communicated with the flow channel; the outer wall of the hot nozzle core is provided with a first sealing surface surrounding the first glue opening; the hot nozzle sleeve completely covers the front end of the hot nozzle core, an air heat insulation layer is formed between the inner wall of the hot nozzle sleeve and the outer wall of the hot nozzle core through a gap, a second glue opening is formed in the position, opposite to the first glue opening, of the hot nozzle sleeve, and a second sealing surface which surrounds the second glue opening and is sealed with the first sealing surface is arranged on the inner wall of the hot nozzle sleeve. According to the hot runner hot nozzle provided by the utility model, the first sealing surface of the hot nozzle core is sealed with the second sealing surface of the hot nozzle sleeve, so that the generation of plastic dead corners is avoided, the color can be changed without taking off the machine, the hot nozzle can be washed cleanly without taking off the machine, the appearance surface of a product is not influenced, and the material cost and the labor cost are saved. But the scheme still easily causes the situation of insufficient heat transfer in the injection molding process, thereby causing various surface defects such as epitome, mottle and the like of a plastic part, reducing the efficiency, improving the production cost and having the defects of common appearance, quality and rigidity of a product after one-step molding.
Disclosure of Invention
The present invention is directed to the above-mentioned problems, and an object of the present invention is to provide a hot nozzle structure in a hot runner system.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a hot mouth structure among hot runner system, includes the mould main part, the mould main part on be equipped with the thermal current baffle, the mould main part in be equipped with the die cavity, the thermal current baffle on be equipped with and extend to let in to the hot mouth subassembly of the high heat transfer sealed point runner in the mould main part, the position of the hot mouth subassembly of the sealed point runner of high heat transfer corresponding with the die cavity, thermal current baffle bottom be equipped with and prevent inclined to one side the setting element, prevent inclined to one side the setting element and mould main part looks butt cooperation.
In the hot nozzle structure in the hot runner system, the high heat transfer sealed type point gate hot nozzle assembly comprises a high heat transfer type hot nozzle arranged on the heat flow guide plate, a mold inner hole is arranged in the mold main body, the mold inner hole is communicated with the cavity, and the high heat transfer type hot nozzle extends into the mold inner hole.
In the hot nozzle structure in the hot runner system, the bottom of the high heat transfer type hot nozzle is V-shaped, and the high heat transfer type hot nozzle is made of a copper material.
In the hot nozzle structure in the hot runner system, a leakage-proof sealing piece is arranged in the inner hole of the mold, one end of the leakage-proof sealing piece is abutted against the mold main body, the other end of the leakage-proof sealing piece is abutted against the high-heat-transfer hot nozzle, and the leakage-proof sealing piece corresponds to the position of the cavity.
In the hot nozzle structure of the hot runner system, the leakproof sealing member comprises a sealing ring arranged in an inner hole of the mold, the sealing ring is positioned between the mold main body and the high heat transfer type hot nozzle, one end of the sealing ring is abutted against the mold main body, and the other end of the sealing ring is abutted against the high heat transfer type hot nozzle.
In the hot nozzle structure in the hot runner system, the high heat transfer type hot nozzle is provided with a detachable connecting part, and the detachable connecting part is in butt fit with the heat flow guide plate.
In the hot nozzle structure in the hot runner system, the detachable connecting part comprises a screw joint top plate arranged on the high heat transfer type hot nozzle, the screw joint top plate is in butt fit with the heat flow guide plate, the screw joint top plate is connected with the heat flow guide plate through a plurality of fastening bolts, a hot nozzle alignment butt part is arranged on the die body, and the hot nozzle alignment butt part is in clamping fit with the high heat transfer type hot nozzle.
In the hot nozzle structure of the hot runner system, the hot nozzle alignment and abutment portion comprises an alignment and abutment base plate arranged on the mold body, and the high heat transfer type hot nozzle penetrates through the alignment and abutment base plate and is in clamping fit with the alignment and abutment base plate.
In the hot nozzle structure of the hot runner system, the deviation preventing positioning part comprises a plurality of positioning side plates arranged at the bottom of the heat flow guide plate, and the positioning side plates are in butt fit with the mold main body.
In the hot nozzle structure in the hot runner system, the central line of the positioning side plate is perpendicular to the central line of the heat flow guide plate, and the heat flow guide plate is connected with the mold main body through a plurality of fastening bolts.
Compared with the prior art, the utility model has the advantages that:
1. according to the utility model, the high heat transfer sealed type point gate hot nozzle assembly is arranged, and a non-direct contact mounting structure is adopted, so that the hot nozzle is prevented from being in direct contact with the inner wall of the mold, the molten material can be enabled to have better transfer temperature in the injection molding process, the appearance defects of epitome, mottling and the like caused by insufficient heat transfer on the surface of a product in the mold production process are greatly overcome, the sealing effect is enhanced, the occurrence of mold leakage is reduced, the production efficiency of the mold is improved, the raw materials and the labor force are saved, the product quality is improved, and the service life of the mold is prolonged.
2. According to the utility model, the alignment abutting base plate is arranged for clamping and fixing the high heat transfer type hot nozzle, so that the high heat transfer type hot nozzle is accurately aligned during installation, and the installation precision is higher.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is a partial cross-sectional view of the present invention.
In the figure: the device comprises a mould main body 1, a heat flow guide plate 2, a cavity 3, a high heat transfer sealed type point gate hot nozzle assembly 4, an anti-deviation positioning piece 5, a high heat transfer type hot nozzle 6, a mould inner hole 7, a leakage-proof sealing piece 8, a sealing ring 9, a detachable connecting part 10, a screw connection top plate 11, a hot nozzle alignment butt joint part 12, an alignment butt joint base plate 13 and a positioning side plate 14.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-3, a hot nozzle structure among hot runner system, including mould main part 1, mould main part 1 on be equipped with heat flow baffle 2, mould main part 1 in be equipped with die cavity 3, heat flow baffle 2 on be equipped with and extend to letting in to the hot mouth subassembly 4 of the sealed point runner of high heat transfer in the mould main part 1, the hot mouth subassembly 4 of the sealed point runner of high heat transfer corresponding with the position of die cavity 3, 2 bottoms of heat flow baffle be equipped with and prevent inclined to one side setting element 5, prevent inclined to one side setting element 5 and mould main part 1 looks butt cooperation.
In the embodiment, before injection molding, the heat flow guide plate 2 is connected and fixed with the mold main body 1, the heat flow guide plate 2 is positioned by the deviation preventing positioning piece 5, so that the angular deviation in the installation and fixing process is prevented, the injection molding accuracy is ensured, in the injection molding process, a molten material flows into the high heat transfer sealed point gate hot nozzle component 4 through the heat flow guide plate 2, the material is conveyed into the cavity 3 through the high heat transfer sealed point gate hot nozzle component 4 for injection molding, the high heat transfer sealed point gate hot nozzle component 4 adopts a non-direct contact installation structure, the direct contact between a hot nozzle and the inner wall of the mold is avoided, so that the molten material has better transfer temperature in the injection molding process, the appearance defects of shrinkage shadow, flower spots and the like caused by insufficient heat transfer on the surface of a product in the mold production process are greatly overcome, the sealing effect is enhanced, the occurrence of material leakage of the mold is reduced, and the production efficiency of the mold is improved, save raw materials and labour, improve product quality, improve the mould life-span.
Referring to fig. 2 and 3, the high heat transfer sealed type hot nozzle assembly 4 includes a high heat transfer type hot nozzle 6 disposed on the heat flow guide plate 2, a mold inner hole 7 is disposed in the mold main body 1, the mold inner hole 7 is communicated with the cavity 3, and the high heat transfer type hot nozzle 6 extends into the mold inner hole 7.
Specifically, the inner hole 7 of the mold is used for installing and fixing the high heat transfer type hot nozzle 6, the molten material is sent into the cavity 3 through the high heat transfer type hot nozzle 6 for injection molding, and the high heat transfer type hot nozzle 6 is not in direct contact with the inner wall of the mold, so that the molten material can have a better transfer temperature in the injection molding process, and the appearance defects of epitome, mottle and the like caused by insufficient heat transfer on the surface of a product in the mold production process are greatly overcome.
Referring to fig. 2 and 3, the bottom of the high heat transfer type hot nozzle 6 is V-shaped, and the high heat transfer type hot nozzle 6 is made of copper material.
In this embodiment, the bottom of the high heat transfer type hot nozzle 6 is V-shaped, the injection pressure is high, the injection speed is high, and the high heat transfer type hot nozzle 6 is made of a copper material, so that the heat conduction effect is good.
The mould hole 7 in be equipped with leak protection sealing member 8, leak protection sealing member 8 one end and mould main part 1 looks butt, the other end and the hot mouth 6 looks butt of high heat transfer type, leak protection sealing member 8 and the position of die cavity 3 corresponding.
In this embodiment, leak protection sealing member 8 is used for being in the same place high heat transfer type hot mouth 6 and 1 tight-fitting of mould main part, avoid high heat transfer type hot mouth 6 and 1 direct contact of mould main part, thereby can make the better transmission temperature of melting material at the in-process of moulding plastics, very big solution in the mould production process product surface because of the epitome that heat transfer is not enough to produce, appearance defects such as mottle, sealed effect has been strengthened simultaneously, the emergence that has reduced the mould and leaked the material makes the mould improve production efficiency, save raw materials and labour, improve product quality, the service life of the mould is prolonged.
Referring to fig. 3, the leakproof seal member 8 comprises a seal ring 9 arranged in the inner hole 7 of the mold, the seal ring 9 is positioned between the mold main body 1 and the high heat transfer type hot nozzle 6, one end of the seal ring 9 is abutted against the mold main body 1, and the other end is abutted against the high heat transfer type hot nozzle 6.
In this embodiment, sealing ring 9 is used for being in the same place high heat transfer type hot mouth 6 and 1 tight-fitting of mould main part, avoid high heat transfer type hot mouth 6 and 1 direct contact of mould main part, thereby can make the better transmission temperature of melting material at the in-process of moulding plastics, very big solution in the mould production process product surface because of the epirelief that heat transfer is not enough produced, appearance defects such as mottle, sealed effect has been strengthened simultaneously, the emergence that has reduced the mould and has leaked the material makes the mould improve production efficiency, save raw materials and labour, improve product quality, the service life of the mould is prolonged.
The high heat transfer type hot nozzle 6 is provided with a detachable connecting part 10, and the detachable connecting part 10 is abutted and matched with the heat flow guide plate 2.
In this embodiment, detachable connection portion 10 can be convenient for install high heat transfer type hot mouth 6 and heat flow baffle 2 fixedly, makes things convenient for the staff to carry out the dismouting, and easy operation is convenient.
In this embodiment, spiro union roof 11 can be convenient for install high heat transfer type hot mouth 6 and thermal current baffle 2 fixedly, links to each other through a plurality of fastening bolt between spiro union roof 11 and the thermal current baffle 2, makes things convenient for the staff to carry out the dismouting, and easy operation is convenient, and hot mouth counterpoint butt portion 12 can carry out accurate counterpoint to high heat transfer type hot mouth 6 when the installation, and the installation accuracy is higher.
Referring to fig. 2, the hot nozzle aligning and abutting part 12 includes an aligning and abutting backing plate 13 disposed on the mold body 1, and the high heat transfer type hot nozzle 6 penetrates through the aligning and abutting backing plate 13 and the high heat transfer type hot nozzle 6 is in clamping fit with the aligning and abutting backing plate 13.
In this embodiment, the alignment abutting backing plate 13 is used for clamping and fixing the high heat transfer type hot nozzle 6, and the high heat transfer type hot nozzle 6 is accurately aligned in the installation process, so that the installation accuracy is high.
Referring to fig. 2, the deviation preventing positioning member 5 includes a plurality of positioning side plates 14 disposed at the bottom of the heat flow guide plate 2, and the positioning side plates 14 are in abutting fit with the mold body 1.
In this embodiment, when installation heat flow baffle 2, through the butt cooperation between location curb plate 14 and the mould main part 1, fix a position heat flow baffle 2, prevent to take place angular deviation at installation fixed in-process, ensured the accuracy of moulding plastics.
As shown in fig. 2, the central line of the positioning side plate 14 is perpendicular to the central line of the heat flow guide plate 2, and the heat flow guide plate 2 is connected with the mold body 1 through a plurality of fastening bolts, so that the assembly and disassembly are simple and convenient, and the operation is convenient.
The working principle of the utility model is as follows:
before injection molding, the heat flow guide plate 2 is fixedly connected with the mold main body 1, the heat flow guide plate 2 is positioned through the abutting fit between the positioning side plate 14 and the mold main body 1, the angular deviation in the installation and fixing process is prevented, the injection molding accuracy is ensured,
the inner hole 7 of the mold is used for installing and fixing the high heat transfer type hot nozzle 6, the high heat transfer type hot nozzle 6 is used for sending the melting material into the cavity 3 for injection molding, the sealing ring 9 is used for tightly matching the high heat transfer type hot nozzle 6 with the mold main body 1, the direct contact between the high heat transfer type hot nozzle 6 and the mold main body 1 is avoided, thereby the melting material has better transfer temperature in the injection molding process, the appearance defects of the product surface, such as the reduction, the mottling and the like, which are generated due to insufficient heat transfer in the mold production process are greatly solved, the sealing effect is enhanced simultaneously, the occurrence of mold leakage is reduced, the mold production efficiency is improved, the raw material and the labor force are saved, the product quality is improved, the mold service life is prolonged,
spiro union roof 11 can be convenient for install high heat transfer type hot mouth 6 fixed with thermal current baffle 2, link to each other through a plurality of fastening bolt between spiro union roof 11 and the thermal current baffle 2, make things convenient for the staff to carry out the dismouting, easy operation is convenient, counterpoint butt backing plate 13 is used for the fixed high heat transfer type hot mouth 6 of joint, carries out accurate counterpoint to high heat transfer type hot mouth 6 when the installation, and the installation accuracy is higher.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the utility model.
Although the terms of the mold main body 1, the heat flow guide plate 2, the cavity 3, the high heat transfer sealed type spot gate hot nozzle assembly 4, the deviation preventing positioning piece 5, the high heat transfer type hot nozzle 6, the mold inner hole 7, the leakage preventing sealing piece 8, the sealing ring 9, the detachable connecting part 10, the screw top plate 11, the hot nozzle alignment abutting part 12, the alignment abutting backing plate 13, the positioning side plate 14 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (10)
1. The utility model provides a hot mouth structure among hot runner system, includes mould main part (1), its characterized in that, mould main part (1) on be equipped with thermal current baffle (2), mould main part (1) in be equipped with die cavity (3), thermal current baffle (2) on be equipped with and extend to let in to the hot mouth subassembly of high heat transfer sealed some runner (4) in mould main part (1), the position of the hot mouth subassembly of high heat transfer sealed some runner (4) and die cavity (3) corresponding, thermal current baffle (2) bottom be equipped with and prevent inclined to one side setting element (5), prevent inclined to one side setting element (5) and mould main part (1) looks butt cooperation.
2. The hot nozzle structure in the hot runner system according to claim 1, wherein the high heat transfer sealed type point gate hot nozzle assembly (4) comprises a high heat transfer type hot nozzle (6) arranged on the heat flow guide plate (2), a mold inner hole (7) is arranged in the mold main body (1), the mold inner hole (7) is communicated with the cavity (3), and the high heat transfer type hot nozzle (6) extends into the mold inner hole (7).
3. The hot nozzle structure in a hot runner system according to claim 2, wherein the bottom of the high heat transfer type hot nozzle (6) is V-shaped, and the high heat transfer type hot nozzle (6) is made of a copper material.
4. The hot nozzle structure in the hot runner system according to claim 3, wherein a leak-proof sealing member (8) is arranged in the inner hole (7) of the mold, one end of the leak-proof sealing member (8) abuts against the main body (1) of the mold, the other end of the leak-proof sealing member abuts against the high heat transfer type hot nozzle (6), and the leak-proof sealing member (8) corresponds to the position of the cavity (3).
5. The hot nozzle structure in the hot runner system according to claim 4, wherein the leakproof seal (8) comprises a sealing ring (9) arranged in the inner hole (7) of the mold, the sealing ring (9) is positioned between the mold body (1) and the high heat transfer type hot nozzle (6), and one end of the sealing ring (9) abuts against the mold body (1).
6. The hot nozzle structure in the hot runner system according to claim 5, wherein the high heat transfer type hot nozzle (6) is provided with a detachable connecting part (10), and the detachable connecting part (10) is in abutting fit with the heat flow guide plate (2).
7. The hot nozzle structure in the hot runner system according to claim 6, wherein the detachable connection part (10) comprises a screw top plate (11) arranged on the high heat transfer type hot nozzle (6), the screw top plate (11) is in butt fit with the heat flow guide plate (2), the screw top plate (11) is connected with the heat flow guide plate (2) through a plurality of fastening bolts, the mold body (1) is provided with a hot nozzle alignment abutting part (12), and the hot nozzle alignment abutting part (12) is in butt fit with the high heat transfer type hot nozzle (6).
8. The hot nozzle structure in the hot runner system according to claim 7, wherein the hot nozzle alignment abutting part (12) comprises an alignment abutting backing plate (13) arranged on the mold body (1), the high heat transfer type hot nozzle (6) penetrates through the alignment abutting backing plate (13), and the high heat transfer type hot nozzle (6) is in clamping fit with the alignment abutting backing plate (13).
9. The hot nozzle structure in the hot runner system according to claim 8, wherein the deviation preventing positioning member (5) comprises a plurality of positioning side plates (14) arranged at the bottom of the heat flow guide plate (2), and the positioning side plates (14) are in abutting fit with the mold main body (1).
10. The hot nozzle structure in the hot runner system according to claim 9, wherein the center line of the positioning side plate (14) and the center line of the heat flow guide plate (2) are perpendicular to each other, and the heat flow guide plate (2) is connected with the mold body (1) through a plurality of fastening bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121694377.3U CN215512089U (en) | 2021-07-23 | 2021-07-23 | Hot nozzle structure in hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121694377.3U CN215512089U (en) | 2021-07-23 | 2021-07-23 | Hot nozzle structure in hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215512089U true CN215512089U (en) | 2022-01-14 |
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ID=79787378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121694377.3U Active CN215512089U (en) | 2021-07-23 | 2021-07-23 | Hot nozzle structure in hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215512089U (en) |
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2021
- 2021-07-23 CN CN202121694377.3U patent/CN215512089U/en active Active
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