CN203945572U - Injection molding nozzle - Google Patents
Injection molding nozzle Download PDFInfo
- Publication number
- CN203945572U CN203945572U CN201420415727.1U CN201420415727U CN203945572U CN 203945572 U CN203945572 U CN 203945572U CN 201420415727 U CN201420415727 U CN 201420415727U CN 203945572 U CN203945572 U CN 203945572U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- filter cylinder
- sealing lip
- connecting rod
- injection molding
- 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.)
- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of injection molding nozzle, aim to provide a kind of injection molding nozzle of avoiding melt overflow, its technical scheme main points are that nozzle body comprises nozzle and nozzle bar, nozzle bar is provided with spray chamber, in spray chamber, be provided with filter cylinder, filter cylinder lateral wall is provided with filter opening and flange, and nozzle bar is provided with the stepped hole being embedded for flange, and filter cylinder is provided with sealing lip.After nozzle and nozzle bar are fastenedly connected, filter cylinder is inserted in spray chamber, connecting rod is fastenedly connected at nozzle bar subsequently to the other end with respect to nozzle, until connecting rod contacts at sealing lip, when sealing lip is subject to after connecting rod axial compressive force, can make sealing lip expand laterally, the metallic elastic power of utilizing sealing lip radial deformation to produce provides sealing load, being conducive to sealing lip is remaining and the tight conflict of connecting rod, be conducive to improve the sealing of filter cylinder and connecting rod, therefore can avoid melt from the overflow of filter cylinder side and mistake, make the melt filter cylinder of need all flowing through, effect of guaranteeing filter cylinder is normally used.
Description
Technical field
The utility model relates to a kind of injection machine for injecting the nozzle of melt, and more particularly, it relates to a kind of injection molding nozzle.
Background technology
Injection machine is to utilize mould for plastics to make the main former of the plastic products of various shapes thermoplastic or thermosetting plastics.Penetrating injection moulding is generally that resin material is melted in barrel, by the promotion of screw rod, melt is passed through to nozzle fast injection in mold cavity, then obtains injecting products through solidifying and setting.Nozzle is the transition portion that connects barrel and mould, but the spray chamber of nozzle or nozzle easily stop up in actual use, and cannot clear up its inside after obstruction, can only change whole nozzle.Blockage problem mainly causes owing to containing metal impurities in raw material, for the cost that economizes in raw materials as much as possible, conventionally select crushed material or regrown material, but this class raw material contains many metal impurities conventionally, even through the absorption of powerful magnetic frame, still have the copper of 0.5-2 millimeter, aluminium, scolding tin, the metal impurities that stainless steel etc. cannot adsorb are mixed in naked eyes in raw material and cannot see clearly at all, therefore easily produce obstruction at spray chamber or the nozzle place of nozzle, particularly the nozzle of 1-2 mm dia and runner the most easily produce obstruction, although therefore saved cost of material, but but increase the cost of maintenance of equipment and maintenance simultaneously, and consider the factors such as stopping production, actual loss often exceedes the cost of conservation.
Application number is that 200910246110.5 Chinese patent discloses a kind of injection molding nozzle, it comprises that one for connecting the connecting portion of injection machine, an and nozzle, wherein, described injection molding nozzle also comprise one with integrated the first spray chamber portion of affiliated connecting portion and one and integrated the second spray chamber portion of described nozzle, described the first spray chamber portion is removably connected with described the second spray chamber portion, and between described the first spray chamber portion and described the second spray chamber portion, be provided with a filter, described filter comprises the perforate that at least one pair of central axis is crossing.Although it is lower that this injection molding nozzle has replacement cost, and ensure better the effect of workpiece quality, filter can be because cannot be effectively conflicting and fit with the first spray chamber portion, and make melt from the overflow of filter side and mistake, and cause filter inefficacy.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of injection molding nozzle of avoiding melt overflow.
For achieving the above object, the utility model provides following technical scheme: a kind of injection molding nozzle, comprise nozzle body and connecting rod for being connected barrel and nozzle body, described nozzle body comprises the nozzle and the nozzle bar that removably connect, described nozzle bar is provided with the spray chamber that connects nozzle and barrel, in described spray chamber, be provided with filter cylinder, described filter cylinder lateral wall is provided with some perforation to the filter opening in filter cylinder, the openend of described filter cylinder is towards connecting rod, described filter cylinder convexes with flange with respect to the lateral wall of openend, described nozzle bar is provided with the stepped hole being embedded for flange, described filter cylinder is provided with sealing lip with respect to the end face of flange one side, described sealing lip favours laterally this end face and is acuter angles setting, described sealing lip external diameter equates with flange outside diameter.
Bottom in described filter cylinder is provided with holds slag chamber.
The tapered pore structure setting of described filter opening, its large openend toward the outer side.
The junction of described sealing lip and filter cylinder is the setting of rounding structure.
A kind of injection molding nozzle, comprise nozzle body and connecting rod for being connected barrel and nozzle body, described nozzle body comprises the nozzle and the nozzle bar that removably connect, described nozzle bar is provided with the spray chamber that connects nozzle and barrel, in described spray chamber, be provided with filter cylinder, described filter cylinder lateral wall is provided with some perforation to the filter opening in filter cylinder, the openend of described filter cylinder is towards connecting rod, described filter cylinder convexes with flange with respect to the lateral wall of openend, described nozzle bar is provided with the stepped hole being embedded for flange, described filter cylinder is provided with sealing lip with respect to the end face of flange one side, described sealing lip favours laterally this end face and is acuter angles setting, described sealing lip external diameter equates with flange outside diameter.By adopting technique scheme, after nozzle and nozzle bar are fastenedly connected, filter cylinder is inserted in spray chamber, connecting rod is fastenedly connected at nozzle bar subsequently to the other end with respect to nozzle, until connecting rod contacts at sealing lip, when sealing lip is subject to after connecting rod axial compressive force, can make sealing lip expand laterally, the metallic elastic power of utilizing sealing lip radial deformation to produce provides sealing load, being conducive to sealing lip is remaining and the tight conflict of connecting rod, be conducive to improve the sealing of filter cylinder and connecting rod, therefore can avoid melt from the overflow of filter cylinder side and mistake, make the melt filter cylinder of need all flowing through, effect of guaranteeing filter cylinder is normally used.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the utility model injection molding nozzle;
Fig. 2 is the A portion structure for amplifying schematic diagram of Fig. 1.
Reference numeral: 1, nozzle body; 11, nozzle; 12, nozzle bar; 121, spray chamber; 122, stepped hole; 13, filter cylinder; 131, filter opening; 132, flange; 133, sealing lip; 134, hold slag chamber; 2, connecting rod.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, the utility model injection molding nozzle embodiment is described further.
A kind of injection molding nozzle, comprise nozzle body 1 and connecting rod 2 for being connected barrel and nozzle body 1, connecting rod 2 includes the conveyor chamber of conducting nozzle body 1 and barrel, nozzle body 1 comprises the nozzle 11 and the nozzle bar 12 that removably connect, nozzle 11 can be threaded connection with nozzle bar 12, nozzle bar 12 is provided with the spray chamber 121 that connects nozzle 11 and barrel, in spray chamber 121, be provided with filter cylinder 13, filter cylinder 13 is the structure setting of bucket shape, include filter cylinder 13 sidewalls, with the opening and filter cylinder 13 bottoms that lay respectively at filter cylinder 13 two ends, filter cylinder 13 is between nozzle 11 and connecting rod 2, filter cylinder 13 lateral walls are provided with some perforation to the filter opening 131 in filter cylinder 13, the openend of filter cylinder 13 is towards connecting rod 2, filter cylinder 13 convexes with flange 132 with respect to the lateral wall of openend, nozzle bar 12 is provided with the stepped hole 122 being embedded for flange 132, flange 132 external diameters and stepped hole 122 internal diameters are suitable, filter cylinder 13 is provided with sealing lip 133 with respect to the end face of flange 132 1 sides, sealing lip 133 favours laterally this end face and is acuter angles setting, sealing lip 133 external diameters equate with flange 132 external diameters.After nozzle 11 and nozzle bar 12 are fastenedly connected, filter cylinder 13 is inserted in spray chamber 121, subsequently connecting rod 2 is fastenedly connected to the other end with respect to nozzle 11 at nozzle bar 12, until connecting rod 2 contacts at sealing lip 133, when sealing lip 133 is subject to after connecting rod 2 axial compressive forces, can make sealing lip 133 expand laterally, the metallic elastic power of utilizing sealing lip 133 radial deformations to produce provides sealing load, and flange 132 external diameters and stepped hole 122 internal diameters are suitable, sealing lip 133 external diameters equate with flange 132 external diameters, therefore when the stressed expansion deformation laterally of sealing lip 133, not only be conducive to the tight conflict of sealing lip 133 and connecting rod 2, also being conducive to sealing lip 133 closely conflicts with stepped hole 122 madial walls, therefore good sealing effect.Sealing lip 133 is only the outermost circle of sealing lip 133 with the conflict part of connecting rod 2 simultaneously, therefore sealing lip 133 is linear sealing structure with connecting rod 2, be convenient to realize the laminating of sealing lip 133 and connecting rod 2, be conducive to improve the sealing of filter cylinder 13 and connecting rod 2, therefore can avoid melt from filter cylinder 13 side overflows and mistake, make the melt filter cylinder 13 of need all flowing through, guarantee that effect of filter cylinder 13 is normally used.Along with the promotion of screw rod, when melt is expelled in mold cavity by nozzle, melt is through the filtration of filter cylinder 13, melt is flowed out from filter opening 131, and the metal impurities that cannot remove in melt are because volume is larger, therefore cannot flow out by filter opening 131, be trapped in filter cylinder 13 inner bottom parts, therefore can avoid the spray chamber 121 of nozzle or nozzle 11 places to produce obstruction.After using a period of time, nozzle body 1 can be disassembled simultaneously, after filter cylinder 13 is taken out and cleaned out, can reinstall into use, dismounting is simple and convenient, and reusable, is conducive to reduce use cost, is convenient to extensively promote the use of.
Bottom in described filter cylinder 13 is provided with holds slag chamber 134.Be that guiding gutter is not provided with filter opening 131 with respect to holding 134 places, slag chamber, filter opening 131 is only arranged on the side near openend on filter cylinder 13 lateral walls, therefore on filter cylinder 13 lateral walls, be not provided with filter opening 131 with respect to a side of filter cylinder 13 bottoms, be positioned at the environment that slag chamber 134 is relative closure that holds of filter cylinder 13 bottoms, only there is the opening towards connecting rod 2, therefore be convenient to hold slag chamber 134 and be detained metal impurities, the metal impurities that cannot remove in centralized collection melt, cleaning after convenient concentrating.
The tapered pore structure setting of described filter opening 131, its large openend toward the outer side.The minimum diameter of filter opening 131 can be arranged to 1-2 millimeter, suitable with the nozzle hole internal diameter of nozzle, therefore the metal impurities that easily stop up nozzle can be trapped in filter cylinder 13, avoids it to stop up nozzle and runner.The simultaneously tapered pore structure setting of filter opening 131, changes and has adjusted melt after filter cylinder 13 the filters nowed forming in filter opening 131, utilizes the circulation area diffusion melt expanding, and is convenient to the filtration of a large amount of melts.
Described sealing lip 133 is the setting of rounding structure with the junction of filter cylinder 13.Sealing lip 133 is round and smooth structure with the junction of filter cylinder 13 by rounding transition, is conducive to improve the rigidity intensity of sealing lip 133 in the time that pressurized produces distortion, prevents that sealing lip 133 from coming off from filter cylinder 13.
Claims (4)
1. an injection molding nozzle, comprise nozzle body and connecting rod for being connected barrel and nozzle body, it is characterized in that: described nozzle body comprises the nozzle and the nozzle bar that removably connect, described nozzle bar is provided with the spray chamber that connects nozzle and barrel, in described spray chamber, be provided with filter cylinder, described filter cylinder lateral wall is provided with some perforation to the filter opening in filter cylinder, the openend of described filter cylinder is towards connecting rod, described filter cylinder convexes with flange with respect to the lateral wall of openend, described nozzle bar is provided with the stepped hole being embedded for flange, described filter cylinder is provided with sealing lip with respect to the end face of flange one side, described sealing lip favours laterally this end face and is acuter angles setting, described sealing lip external diameter equates with flange outside diameter.
2. injection molding nozzle according to claim 1, is characterized in that: the bottom in described filter cylinder is provided with holds slag chamber.
3. injection molding nozzle according to claim 1 and 2, is characterized in that: the tapered pore structure setting of described filter opening, its large openend toward the outer side.
4. injection molding nozzle according to claim 3, is characterized in that: the junction of described sealing lip and filter cylinder is the setting of rounding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420415727.1U CN203945572U (en) | 2014-07-25 | 2014-07-25 | Injection molding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420415727.1U CN203945572U (en) | 2014-07-25 | 2014-07-25 | Injection molding nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203945572U true CN203945572U (en) | 2014-11-19 |
Family
ID=51887630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420415727.1U Expired - Fee Related CN203945572U (en) | 2014-07-25 | 2014-07-25 | Injection molding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203945572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894255A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Flexible nozzle head of core making machine and mounting method of flexible nozzle head and mold |
-
2014
- 2014-07-25 CN CN201420415727.1U patent/CN203945572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894255A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Flexible nozzle head of core making machine and mounting method of flexible nozzle head and mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20190725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |