CN112743760A - Anti-drooling nozzle structure of injection molding machine - Google Patents
Anti-drooling nozzle structure of injection molding machine Download PDFInfo
- Publication number
- CN112743760A CN112743760A CN202011592918.1A CN202011592918A CN112743760A CN 112743760 A CN112743760 A CN 112743760A CN 202011592918 A CN202011592918 A CN 202011592918A CN 112743760 A CN112743760 A CN 112743760A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- injection molding
- molding machine
- channel
- passageway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 21
- 206010013642 Drooling Diseases 0.000 title claims description 12
- 208000008630 Sialorrhea Diseases 0.000 title claims description 12
- 206010039424 Salivary hypersecretion Diseases 0.000 claims abstract description 5
- 208000026451 salivation Diseases 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 238000004513 sizing Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/20—Injection nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a slobbering-proof nozzle structure of an injection molding machine, which is characterized in that: including nozzle shell (1), be provided with nozzle channel (4) in nozzle shell (1), the front end of nozzle channel (4) even has nozzle mouth (3), nozzle channel (4) are including convergent passageway (42), the stub end of convergent passageway (42) even has feedstock channel (43), the stub end of convergent passageway (42) even has the rear end of interior oblique passageway (41), interior oblique passageway (41) are the round platform shape of big end back before, the front end of interior oblique passageway (41) with nozzle mouth (3) link to each other. The invention provides a salivation-preventing nozzle structure of an injection molding machine, which can overcome the product defects and unsmooth production caused by salivation prevention by reducing the temperature of a nozzle in the prior art.
Description
Technical Field
The invention relates to a slobbering-preventing nozzle structure of an injection molding machine, and belongs to the technical field of product injection molding equipment.
Background
In the injection molding production process, the interval time between the previous production cycle and the next production cycle (the time is used for opening the mold and ejecting a product or embedding a terminal and the like) is called as 'intermediate time', when the 'intermediate time' is more than 1 minute, the nozzle can generate drooling, molten material flows into a main runner, condensed rubber material can influence the smooth injection molding (blocking a pouring gate/runner) or cause appearance defects (such as cold spots, shrinkage, rubber shortage and the like) on the surface of a rubber part, and particularly, the rubber material is more prone to drooling under the influence of the self-gravity of the rubber material in a vertical injection molding machine. In the prior art, the temperature at the nozzle is reduced in the process of 'intermediate time', so that the viscosity of molten rubber is increased, the pressure of the rubber in the charging barrel is overcome (the gravity of the rubber in the charging barrel is also overcome for a vertical injection molding machine), the rubber is prevented from flowing out of the nozzle, but the rubber is solidified due to the excessively low temperature of the nozzle, so that short shot of a product is caused, and the influence of unsmooth production is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a salivation preventing nozzle structure of an injection molding machine, which can overcome the product defects and the problem of unsmooth production caused by salivation prevention by reducing the temperature of the nozzle in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an injection molding machine prevents nozzle structure of dribbling, is including setting up the female mould benevolence in the female mould and setting up the public mould benevolence in public mould, be provided with public mould mold insert in the public mould mold insert, it is provided with the preheating mold insert to be located the product region of moulding plastics in advance, be provided with the heat-transfer pipe in the preheating mold insert, the oil inlet pipe of heat-transfer pipe lower part even has into oil pipe way, it has out oil pipe way even to go out oil pipe way, advance oil pipe way and go out oil pipe way and be located in the public mould, set up respectively on the public mould with go out the oil crossing of oil pipe way intercommunication and with the.
The oil outlet road and the oil inlet road are respectively positioned at two sides of the male die.
The oil outlet pipeline and the oil inlet pipeline are horizontally arranged, and the height of the oil inlet pipeline is larger than that of the oil outlet pipeline.
The heat transfer pipe is of an inverted V-shaped structure.
The preheating insert is made of beryllium copper.
The preheating temperature of the preheating insert is 95 ℃.
The invention has the beneficial effects that: according to the anti-drooling nozzle structure of the injection molding machine, the inner inclined channel structure with the reverse angle is additionally arranged at the front end of the nozzle and is used for offsetting the pressure in the charging barrel and the self gravity of the sizing material, so that the sizing material is prevented from flowing out of the nozzle, drooling of the nozzle cannot occur when the ' middle time ' is within 7 minutes, and smooth production of a product with a longer middle time ' can be ensured.
Drawings
Fig. 1 is a schematic structural view of an anti-drooling nozzle structure of an injection molding machine.
The reference numbers in the figures are as follows: 1-a nozzle housing; 2-external thread structure; 3-a nozzle opening; 4-a nozzle channel; 41-an inwardly inclined channel; 42-a tapered channel; 43-feed channel.
Detailed Description
The present invention is further described with reference to the accompanying drawings, and the following examples are only for clearly illustrating the technical solutions of the present invention, and should not be taken as limiting the scope of the present invention.
As shown in fig. 1, the invention provides a slobbering prevention nozzle structure of an injection molding machine, which comprises a nozzle shell 1, wherein a nozzle channel 4 is arranged in the nozzle shell 1, and the front end of the nozzle channel 4 is connected with a nozzle opening 3. The nozzle channel 4 comprises an inwardly inclined channel 41, a tapering channel 42 and a feed channel 43. The large end of the tapered channel 42 is connected with a feed channel 43, the small end of the tapered channel 42 is connected with an inner inclined channel 41, the front end of the inner inclined channel 41 is connected with the nozzle opening 3, and the inner inclined channel 41 is in a circular truncated cone shape with a large front part and a small back part. In the invention, the structure of the inner inclined channel 41 with a reverse angle is added at the front end of the nozzle to offset the pressure in the charging barrel and the gravity of the sizing material, so that the sizing material can be prevented from flowing out of the nozzle.
Specifically, the inner diameter of the nozzle opening 3 is 2.5 mm.
Specifically, the inclination of the inner inclined passage 41 side is 6 °.
Specifically, the inner diameter of the rear end of the inwardly inclined passage 41 is 1.8 mm.
Specifically, the nozzle shell 1 is provided with an external thread structure 2 for connecting with a feeding cylinder.
Specifically, the male thread structure 2 has a nominal diameter of 22M.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides an injection molding machine prevents salivation nozzle structure which characterized in that: including nozzle shell (1), be provided with nozzle channel (4) in nozzle shell (1), the front end of nozzle channel (4) even has nozzle mouth (3), nozzle channel (4) are including convergent passageway (42), the stub end of convergent passageway (42) even has feedstock channel (43), the stub end of convergent passageway (42) even has the rear end of interior oblique passageway (41), interior oblique passageway (41) are the round platform shape of big end back before, the front end of interior oblique passageway (41) with nozzle mouth (3) link to each other.
2. The anti-drooling nozzle structure of an injection molding machine according to claim 1, wherein: the inner diameter of the nozzle opening (3) is 2.5 mm.
3. The anti-drooling nozzle structure of an injection molding machine according to claim 1, wherein: the inclination of the side surface of the inner inclined channel (41) is 6 degrees.
4. The anti-drooling nozzle structure of an injection molding machine according to claim 1, wherein: the inner diameter of the rear end of the inner inclined channel (41) is 1.8 mm.
5. The anti-drooling nozzle structure of an injection molding machine according to claim 1, wherein: and an external thread structure (2) used for being connected with the feeding cylinder is arranged on the nozzle shell (1).
6. The anti-drooling nozzle structure of an injection molding machine according to claim 5, wherein: the nominal diameter of the external thread structure (2) is 22M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011592918.1A CN112743760A (en) | 2020-12-29 | 2020-12-29 | Anti-drooling nozzle structure of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011592918.1A CN112743760A (en) | 2020-12-29 | 2020-12-29 | Anti-drooling nozzle structure of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112743760A true CN112743760A (en) | 2021-05-04 |
Family
ID=75646739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011592918.1A Pending CN112743760A (en) | 2020-12-29 | 2020-12-29 | Anti-drooling nozzle structure of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112743760A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283117A (en) * | 1985-10-09 | 1987-04-16 | Japan Steel Works Ltd:The | Nozzle with drooling preventor for injection molding machine |
| JPH05154873A (en) * | 1991-12-06 | 1993-06-22 | Bridgestone Corp | Hot runner nozzle for injection molding |
| JPH1148286A (en) * | 1997-08-04 | 1999-02-23 | Japan Steel Works Ltd:The | Nozzle structure of injection molder |
| US6604933B1 (en) * | 2000-09-14 | 2003-08-12 | Samuel Lee Kern | Universal nozzle tip for injection molding |
| CN211031051U (en) * | 2019-10-24 | 2020-07-17 | 苏州佳博塑胶科技有限公司 | Prevent structure is chewed to hydrostomia heat |
-
2020
- 2020-12-29 CN CN202011592918.1A patent/CN112743760A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283117A (en) * | 1985-10-09 | 1987-04-16 | Japan Steel Works Ltd:The | Nozzle with drooling preventor for injection molding machine |
| JPH05154873A (en) * | 1991-12-06 | 1993-06-22 | Bridgestone Corp | Hot runner nozzle for injection molding |
| JPH1148286A (en) * | 1997-08-04 | 1999-02-23 | Japan Steel Works Ltd:The | Nozzle structure of injection molder |
| US6604933B1 (en) * | 2000-09-14 | 2003-08-12 | Samuel Lee Kern | Universal nozzle tip for injection molding |
| CN211031051U (en) * | 2019-10-24 | 2020-07-17 | 苏州佳博塑胶科技有限公司 | Prevent structure is chewed to hydrostomia heat |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210504 |
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| RJ01 | Rejection of invention patent application after publication |