CN220864647U - Novel combined type hot nozzle - Google Patents
Novel combined type hot nozzle Download PDFInfo
- Publication number
- CN220864647U CN220864647U CN202322631412.2U CN202322631412U CN220864647U CN 220864647 U CN220864647 U CN 220864647U CN 202322631412 U CN202322631412 U CN 202322631412U CN 220864647 U CN220864647 U CN 220864647U
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- Prior art keywords
- hot nozzle
- hot
- nozzle body
- flow passage
- heater
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- 239000003292 glue Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of hot runner hot nozzles, in particular to a novel combined hot nozzle which comprises a hot nozzle body, a heater, a splitter plate, a valve sleeve and a valve needle; a main runner is arranged in the middle of the hot nozzle body, the end part of the main runner is contracted inwards to form a glue outlet, and a side runner communicated with the main runner is arranged at the side end of the hot nozzle body; the flow dividing plate is arranged above the hot nozzle body, a feeding flow passage is arranged on the flow dividing plate, and the feeding flow passage is communicated with the side flow passage; the valve sleeve is arranged in the main flow channel and is positioned above the side flow channel, the valve sleeve is connected with the hot nozzle body in a sealing way, and a mounting hole is formed in the middle of the valve sleeve; the valve needle penetrates through the flow dividing plate and is arranged in the mounting hole, and the end part of the valve needle protrudes to the glue outlet; the heater is sleeved on the hot nozzle body. The utility model solves the problem that the valve needle, the body and the nozzle core are not concentric easily in the use process of the existing hot nozzle.
Description
Technical Field
The utility model relates to the technical field of hot runner hot nozzles, in particular to a novel combined hot nozzle.
Background
Along with the development of injection molding technology, the hot runner technology is an advanced technology applied to a plastic mold runner system, and the hot runner device can be divided into an open type hot nozzle and a needle valve type hot nozzle according to different hot nozzle structures. The hot nozzle core is one of the key parts of the hot runner device and directly affects the molding of plastic products.
Referring to fig. 1, a conventional hot nozzle structure is composed of a main body 100, a copper sleeve 200, a nozzle core 300, a flow dividing plate 400 and a valve needle 500, wherein the nozzle core 300 is installed at the bottom of the main body 100, the flow dividing plate 400 is arranged at the top of the main body 100, a valve sleeve 600 is arranged in the middle of the flow dividing plate 400, and the valve needle 500 is connected with the valve sleeve 600. Although the hot nozzle structure can realize the output of sizing materials, certain problems exist: the first flow dividing plate 400 is easy to expand and deform when heated, so that the position of the valve needle 500 is changed, and the valve needle 500 and the body 100 are not concentric, and the valve needle 500 cannot well seal a glue outlet; and after the second nozzle 300 is heated, the second nozzle 300 is difficult to be stably connected with the body, so that the valve needle 500, the body 100 and the nozzle 300 are not concentric, and the sealing effect is affected.
Therefore, there is a need to provide a solution to the above-mentioned problems.
Disclosure of utility model
The utility model provides a novel combined type hot nozzle, which aims to solve the problem that the valve needle, a body and a nozzle core are not concentric easily in the use process of the traditional hot nozzle.
In order to achieve the above purpose, the utility model provides a novel combined type hot nozzle, which comprises a hot nozzle body, a heater, a flow dividing plate, a valve sleeve and a valve needle, wherein:
A main runner is arranged in the middle of the hot nozzle body, the end part of the main runner is contracted inwards to form a glue outlet, and a side runner communicated with the main runner is arranged at the side end of the hot nozzle body; the flow dividing plate is arranged above the hot nozzle body, a feeding flow passage is arranged on the flow dividing plate, and the feeding flow passage is communicated with the side flow passage; the valve sleeve is arranged in the main flow channel and is positioned above the side flow channel, the valve sleeve is connected with the hot nozzle body in a sealing way, and a mounting hole is formed in the middle of the valve sleeve; the valve needle penetrates through the flow dividing plate and is arranged in the mounting hole, and the end part of the valve needle protrudes to the glue outlet; the heater is sleeved on the hot nozzle body.
More specifically, the heater comprises a steel sleeve and a heating wire, wherein the heating wire is arranged on the inner side of the steel sleeve, and the steel sleeve is sleeved on the hot nozzle body.
More specifically, the heater is provided with a temperature probe.
More specifically, the novel combined type hot nozzle further comprises a body insert, and the body insert is arranged above the heater and is connected with the hot nozzle body.
More specifically, the body insert is connected with the hot nozzle body by hot matching/cold matching.
More specifically, the body insert is provided with an inclined flow passage, and the inclined flow passage is communicated with the feeding flow passage and the side flow passage.
More specifically, a copper ring is arranged between the body insert and the flow dividing plate, and the copper ring seals the joint of the feeding flow passage and the inclined flow passage.
More specifically, the body insert is provided with an anti-rotation pin.
More specifically, the end part of the hot nozzle body is provided with a sprue bush, and the sprue bush is sleeved on the hot nozzle body.
More specifically, the sprue bush and the hot nozzle body are connected by hot matching/cold matching.
The beneficial effects of the utility model are as follows: the valve sleeve is adjusted to the hot nozzle body, so that the valve sleeve position is not influenced by the flow dividing plate, the concentricity between the hot nozzle body and the valve sleeve can be ensured, namely, the concentric arrangement between the valve needle and the main flow passage is ensured. By adopting the design of the utility model, the concentricity of the valve needle, the main runner and the glue outlet is effectively ensured, the sealing compactness can be improved, the friction loss among the valve needle, the valve sleeve and the hot nozzle body is reduced, and the service life of the hot nozzle is prolonged.
Drawings
FIG. 1 is a schematic view of a conventional thermal nozzle;
Fig. 2 is a schematic structural view of a novel combined type heat nozzle according to the present utility model.
The marks in the figure:
1. A hot nozzle body; 2. a heater; 3. a diverter plate; 4. a valve sleeve; 5. a valve needle; 6. a body insert; 7. a sprue bush;
11. A main flow passage; 12. a side flow channel;
21. a steel sleeve; 22. a heating wire; 23. a temperature probe;
31. A feed runner;
61. Inclined flow channel; 62. a copper ring; 63. an anti-rotation pin.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present; 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.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In order to more clearly illustrate the technical solution of the present utility model, a preferred embodiment is provided below, and referring specifically to fig. 1 to 2, a novel combined type nozzle includes a nozzle body 1, a heater 2, a flow dividing plate 3, a valve sleeve 4 and a valve needle 5, wherein:
The middle part of the hot nozzle body 1 is provided with a main runner 11, the end part of the main runner 11 is contracted inwards to form a glue outlet, and the side end of the hot nozzle body 1 is provided with a side runner 12 communicated with the main runner 11; the splitter plate 3 is arranged above the hot nozzle body 1, a feeding runner 31 is arranged on the splitter plate 3, and the feeding runner 31 is communicated with the side flow 12; the valve sleeve 4 is arranged in the main runner 11 and above the side runner 12, and is in sealing connection with the hot nozzle body 1, and the middle part of the valve sleeve 4 is provided with a mounting hole; the valve needle 5 penetrates through the flow dividing plate 3 and is arranged in the mounting hole, and the end part of the valve needle protrudes to the glue outlet; the heater 2 is sleeved on the heater nozzle body 1.
Compared with the existing hot nozzle, the novel combined hot nozzle has the advantages that the valve sleeve 4 is adjusted to the hot nozzle body 1, so that the position of the valve sleeve 4 is not influenced by the flow dividing plate 3, concentricity between the hot nozzle body 1 and the valve sleeve 4 can be ensured, namely, concentric arrangement between the valve needle 5 and the main flow passage 11 is ensured, in addition, the structure of a nozzle core is also omitted, and a glue outlet is directly arranged on the hot nozzle body 1, so that concentric arrangement between the glue outlet and the main flow passage 11 can be ensured. By adopting the design of the utility model, the concentricity of the valve needle 5, the main runner 11 and the glue outlet is effectively ensured, the sealing tightness can be improved, the friction loss among the valve needle 5, the valve sleeve 4 and the hot nozzle body 1 is reduced, and the service life of the hot nozzle is prolonged.
In this embodiment, the heater 2 includes a steel sleeve 21 and a heating wire 22, the heating wire 22 is disposed on the inner side of the steel sleeve 21, and the steel sleeve 21 is sleeved on the nozzle body 1. It should be understood that the steel sleeve 21 not only has excellent thermal conductivity, but also has better self stability, is not easy to be subject to thermal expansion, and can be closely attached to the steel sleeve 21 after the thermal nozzle body 1 is heated and expanded, so that the heater 2 can better transmit heat to the thermal nozzle body 1.
Further, a temperature probe 23 is mounted on the heater 2. The temperature probe 23 is used for detecting whether the heating temperature of the heater 2 reaches the standard.
In this embodiment, the novel combined type nozzle further comprises a body insert 6, and the body insert 6 is arranged above the heater 2 and is connected with the nozzle body 1. The body insert 6 has a heat preservation effect and prevents the heat of the hot nozzle body 1 from being lost too quickly.
Further, the body insert 6 is connected with the nozzle body 1 by hot matching/cold matching. It should be understood that the hot matching connection is to heat the body insert 6 to expand outwards, expand the inner diameter, facilitate the hot nozzle body 1 to be installed in the body insert 6, when the body insert 6 is cooled and restored, the body insert 6 is used for tightening the hot nozzle body 1 to enable the hot nozzle body 1 to be in interference fit, and the cold matching connection is used for cooling the hot nozzle body 1, so that the hot nozzle body 1 is contracted, the outer diameter is reduced, facilitate the hot nozzle body 1 to be installed in the body insert 6, and when the body insert 6 is heated and restored, the body insert 6 is used for tightening the hot nozzle body 1 to enable the hot nozzle body 1 to be in interference fit. The hot matching connection and the cold matching connection are both the existing connection means, so the excessive description is omitted, and the body insert 6 is fixed on the hot nozzle body 1 by utilizing the principle of thermal expansion and cold contraction, so that the biting force between the two can be increased, the two are tightly attached, and the overall stability of the hot nozzle is improved.
In the present embodiment, the body insert 6 is provided with an inclined flow passage 61, and the inclined flow passage 61 is communicated with the feed flow passage 31 and the side flow passage 12; a copper ring 62 is arranged between the body insert 6 and the splitter plate 3, and the copper ring 62 seals the joint of the feed runner 31 and the diagonal flow 61. It should be understood that the temperature of the junction between the body insert 6 and the splitter plate 3 is low, and solidification of the glue is easy to occur, so that the application adopts the copper ring 62 for sealing, not only preventing glue leakage, but also the copper ring 62 can conduct heat sufficiently to ensure that the temperature of the junction between the splitter plate 3 and the body insert 6 reaches the standard, and prevent the glue from solidifying.
Further, the body insert 6 is provided with an anti-rotation pin 63. The anti-rotation pin 63 is connected with the die body to prevent the heat nozzle from rotating during use.
In the embodiment, the end part of the hot nozzle body 1 is provided with a sprue bush 7, and the sprue bush 7 is sleeved on the hot nozzle body 1. The sprue bush 7 plays a role in heat preservation, and prevents the heat at the glue outlet from being lost too quickly, so that the effect of saving resources is achieved.
Further, the sprue bush 7 and the hot nozzle body 1 are connected by hot matching/cold matching. The sprue bush 7 is fixed on the hot nozzle body 1 by utilizing the principle of thermal expansion and cold contraction, the biting force between the two is increased, the two are tightly attached, when the hot nozzle body 1 is heated and expanded, the hot nozzle body 1 can be further attached to the sprue bush 7, the concentricity of the two is improved, the friction loss between the hot nozzle body and the sprue bush 7 is further reduced, and the service life is prolonged.
The above-mentioned embodiments of the present utility model are not limited to the above-mentioned embodiments, but can be modified, equivalent, and improved within the spirit and principle of the present utility model, and the present utility model is also included in the scope of the present utility model.
Claims (10)
1. A novel combined type hot nozzle is characterized in that: including body, heater, flow distribution plate, valve pocket and needle are chewed to heat, wherein:
A main runner is arranged in the middle of the hot nozzle body, the end part of the main runner is contracted inwards to form a glue outlet, and a side runner communicated with the main runner is arranged at the side end of the hot nozzle body; the flow dividing plate is arranged above the hot nozzle body, a feeding flow passage is arranged on the flow dividing plate, and the feeding flow passage is communicated with the side flow passage; the valve sleeve is arranged in the main flow channel and is positioned above the side flow channel, the valve sleeve is connected with the hot nozzle body in a sealing way, and a mounting hole is formed in the middle of the valve sleeve; the valve needle penetrates through the flow dividing plate and is arranged in the mounting hole, and the end part of the valve needle protrudes to the glue outlet; the heater is sleeved on the hot nozzle body.
2. A novel combination thermal nozzle as defined in claim 1, wherein: the heater comprises a steel sleeve and a heating wire, wherein the heating wire is arranged on the inner side of the steel sleeve, and the steel sleeve is sleeved on the hot nozzle body.
3. A novel combination thermal nozzle as defined in claim 2, wherein: and a temperature probe is arranged on the heater.
4. A novel combination thermal nozzle as defined in claim 1, wherein: the novel combined type hot nozzle further comprises a body insert, wherein the body insert is arranged above the heater and is connected with the hot nozzle body.
5. A novel combination thermal nozzle as defined in claim 4, wherein: the body insert is connected with the hot nozzle body by hot matching/cold matching.
6. A novel combination thermal nozzle as defined in claim 4, wherein: and the body insert is provided with an inclined flow passage which is communicated with the feeding flow passage and the side flow passage.
7. The novel combination hot nozzle according to claim 6, wherein: and a copper ring is arranged between the body insert and the flow dividing plate, and the copper ring seals the joint of the feeding flow passage and the inclined flow passage.
8. A novel combination thermal nozzle as defined in claim 4, wherein: the body insert is provided with an anti-rotation pin.
9. A novel combination thermal nozzle as defined in claim 1, wherein: the end part of the hot nozzle body is provided with a sprue bush, and the sprue bush is sleeved on the hot nozzle body.
10. A novel combination thermal nozzle as defined in claim 9, wherein: the sprue bush is connected with the hot nozzle body in a hot matching/cold matching way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322631412.2U CN220864647U (en) | 2023-09-26 | 2023-09-26 | Novel combined type hot nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322631412.2U CN220864647U (en) | 2023-09-26 | 2023-09-26 | Novel combined type hot nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220864647U true CN220864647U (en) | 2024-04-30 |
Family
ID=90820239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322631412.2U Active CN220864647U (en) | 2023-09-26 | 2023-09-26 | Novel combined type hot nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220864647U (en) |
-
2023
- 2023-09-26 CN CN202322631412.2U patent/CN220864647U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |