CN203973924U - Counterflow-preventing injection machine nozzle - Google Patents
Counterflow-preventing injection machine nozzle Download PDFInfo
- Publication number
- CN203973924U CN203973924U CN201420450031.2U CN201420450031U CN203973924U CN 203973924 U CN203973924 U CN 203973924U CN 201420450031 U CN201420450031 U CN 201420450031U CN 203973924 U CN203973924 U CN 203973924U
- Authority
- CN
- China
- Prior art keywords
- limited block
- shell
- block
- counterflow
- discharging opening
- 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
Links
Abstract
The utility model discloses, a kind of counterflow-preventing injection machine nozzle, comprise nozzle main body, nozzle main body comprises shell and is located at the end of thread on shell, in shell, be provided with conducting chamber, the corresponding end of thread opposite side of shell is provided with discharge head, on discharge head, be provided with discharging opening, on shell, be provided with limited block, the opposite side of the corresponding end of thread of limited block is provided with at least two flexure strips, the mutual butt of the other end of the corresponding limited block of flexure strip, the other end of the corresponding limited block of flexure strip is provided with plugging block, plugging block capable assembling forms plug, on plug, be provided with the end socket for shutoff discharging opening, pressure by plastics contacts flexure strip and separates the shutoff that realizes discharging opening with plugging block, when screw rod is retracted by hydraulic means, deficiency due to pressure, reset due to elastic component, discharging opening can be carried out to shutoff, avoided the adverse current of plastics.
Description
Technical field
The utility model relates to a kind of injection machine part, and more particularly, it relates to a kind of counterflow-preventing injection machine nozzle.
Background technology
Nozzle is a kind of part on injection head in injection machine, conventionally when injection moulding, plastic grain is put into from import, by the screw rod in injection head, plastic grain is delivered to a side of screw head, then starting heater melts plastic grain, then by hydraulic means lead-screw, the plastics of melting are sprayed in the middle of nozzle, plastics are pressed in the middle of injection mold.
Common injection machine is in the process of using, in the middle of the plastics of melting can being injected into injecting head from gum-injecting port, by the screw rod in the middle of rotation injecting head, the plastics that make to enter in injecting head passed through glue head along hand of spiral, enter into the end of injecting head, and screw head is backed down, then by hydraulic means, carry out lead-screw head, the plastics of hot melt are sprayed in the middle of nozzle.
Common nozzle is in the process of using, after a mold injection completes, injecting head need to be shifted out, in the middle of being positioned over another mould, continue injection moulding, but common nozzle is in the process of using, screw rod can be retracted by hydraulic means, can make the plastics of nozzle front end reflux, and injection moulding has been caused to impact.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of counterflow-preventing injection machine nozzle that prevents that the plastics in nozzle from refluxing.
For achieving the above object, the utility model provides following technical scheme:
A kind of counterflow-preventing injection machine nozzle, comprise nozzle main body, described nozzle main body comprises shell and is located at the end of thread on shell, in described shell, be provided with conducting chamber, the corresponding end of thread opposite side of shell is provided with discharge head, on described discharge head, be provided with discharging opening, on described shell, be provided with limited block, the opposite side of the corresponding end of thread of described limited block is provided with at least two flexure strips, the mutual butt of the other end of the corresponding limited block of described flexure strip, the other end of the corresponding limited block of described flexure strip is provided with plugging block, described plugging block capable assembling forms plug, on described plug, be provided with the end socket for shutoff discharging opening.
In the process of using, plastics are after the gum-injecting port injection of injecting head, enter in the middle of conducting chamber, conveying along with screw rod, plastics can constantly accumulate at the front end of injecting head, when screw rod promotes forward, by in the process of plastic extrusion, because plug is blocked discharging opening, now the pressure in nozzle can raise gradually, the flexure strip of mutual butt can be backed down, plugging block also can be separated along with separating of flexure strip, now discharging opening can become unimpeded state, the plastics plastic extrusion accumulating in nozzle is gone out, after a mold injection completes, screw rod can be retracted by hydraulic means, the pressure decreased in conducting chamber now, flexure strip is after losing support, can reset, and drive plugging block to be spliced to form plug, and by end socket, discharging opening is blocked, in the process that prevents from reclaiming at screw rod, the situation of plastics generation adverse current.
Further, described end socket is hemispherical setting, and a side of the corresponding discharging opening of described discharge head is provided with the chute for end socket slippage.
End socket is arranged to hemispherical, can make flexure strip when being under pressure separately, end socket is more prone to separately, and sealing with discharging opening of can being more prone to of hemispheric end socket, chute is set simultaneously on discharge head, can guarantee that flexure strip, in the process of separating, limits the movement of end socket, guarantee that end socket can stablize the permanent work of carrying out.
Further, a side of the corresponding limited block of described plug is provided with perforate chamber, and described perforate chamber is the crooked setting of cambered surface.
A side at the corresponding limited block of plug arranges perforate chamber, and perforate chamber arranges and is the crooked setting of cambered surface, in the time of can making the pressure rise in conducting chamber, the plastics that are squeezed can enter in perforate chamber, because perforate chamber is, cambered surface is crooked to be arranged, the pressure being subject in perforate chamber can be disperseed to side, be convenient to plug to back down.
Further, another of the corresponding end of thread of described limited block is provided with Connection Block, and described Connection Block is communicated with conducting chamber, and the other end of Connection Block correspondence limited block is provided with some through holes, and described discharge head is detachably connected on Connection Block.
Opposite side at the corresponding end of thread of limited block arranges Connection Block, on Connection Block, offer through hole, and Connection Block is communicated with conducting chamber, can make plastics discharge in the middle of through hole, in the middle of cavity in discharge head and Connection Block, accumulate, one is convenient to plug to separate, and has also avoided situation about resulting in blockage in the process of discharging simultaneously, and Connection Block and discharge head are removably connected, can be convenient to discharge head inside to clear up.
Of the present utility modelly further be set to, described flexure strip and through hole are all circularly and evenly distributed around the axle center of Connection Block.
By adopting such scheme, axle center even circumferential by flexure strip and through hole around Connection Block distributes, can make plastics in the middle of through hole, discharge more uniformly, and the pressure that the plastics that make to discharge in the middle of through hole bring can be distributed to each flexure strip uniformly, makes the service life of flexure strip more permanent.
Compared with prior art, the utility model has the advantage of: the pressure by plastics contacts flexure strip and separates the shutoff that realizes discharging opening with plugging block, when screw rod is retracted by hydraulic means, deficiency due to pressure, reset due to elastic component, discharging opening can be carried out to shutoff, avoid the adverse current of plastics.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model counterflow-preventing injection machine nozzle;
Fig. 2 be the utility model counterflow-preventing injection machine nozzle containing Connection Block cut-away section schematic diagram;
Fig. 3 is the discharge head part-structure schematic diagram of the utility model counterflow-preventing injection machine nozzle.
Description of reference numerals: 1, shell; 11, the end of thread; 12, limited block; 13, discharge head; 131, discharging opening; 132, chute; 133, the second annular groove; 14, Connection Block; 141, plug; 1411, plugging block; 1412, end socket; 1413, perforate chamber; 142, flexure strip; 143, through hole; 144, the first annular groove; 15, metallic gasket.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, the utility model counterflow-preventing injection machine nozzle is described in further detail.
As shown in Figure 1, a kind of counterflow-preventing injection machine nozzle, comprise nozzle main body, nozzle main body comprises shell 1 and is located at the end of thread 11 on shell 1, in shell 1, be provided with conducting chamber, the corresponding end of thread 11 opposite sides of shell 1 are provided with discharge head 13, on discharge head 13, be provided with discharging opening 131, on shell 1, be provided with limited block 12, the opposite side of the corresponding end of thread 11 of limited block 12 is provided with at least two flexure strips 142, the mutual butt of the other end of the corresponding limited block 12 of flexure strip 142, the other end of the corresponding limited block 12 of flexure strip 142 is provided with plugging block 1411, plugging block 1411 capable assemblings form plug 141, on plug 141, be provided with the end socket 1412 for shutoff discharging opening 131.
Before use, first on flexure strip 142, connect plugging block 1411, and then on Connection Block 14, place three flexure strip 142(and it should be noted that herein, quantity on flexure strip 142 is at least two, herein using three as preferably increasing stability because of three flexure strip 142 butts), and plugging block 1411 is spliced to form to plug 141 mutually, then Connection Block 14 is connected with discharge head 13.For ease of Connection Block 14, be connected with discharge head 13, Connection Block 14 can be arranged to cylindrical, and Connection Block 14 with on discharge head 13, screw thread is set and is connected.
In the process of using at this counterflow-preventing nozzle, plastics in the middle of injecting head are subject to the drive of screw rod, a side towards nozzle is moved, plastics can be from conducting chamber by the through hole 143 Connection Block 14, enter in the middle of the cavity between discharge head 13 and Connection Block 14, and build up in cavity, mineralization pressure, because plug 141 is blocked discharging opening 131, now the pressure in nozzle can raise gradually, the flexure strip of mutual butt 142 can be backed down, plugging block 1411 also can be separated along with separating of flexure strip 142, now discharging opening 131 can become unimpeded state, the plastics plastic extrusion accumulating in nozzle is gone out, after a mold injection completes, screw rod can be retracted by hydraulic means, the pressure decreased in conducting chamber now, flexure strip 142 is after losing support, can reset, and drive plugging block 1411 to be spliced to form plug 141, and by end socket 1412, discharging opening 131 is blocked, in the process that prevents from reclaiming at screw rod, the situation of plastics generation adverse current.
As shown in Figure 1, Figure 2, Figure 3 shows, for the sealing being connected between discharge head 13 and Connection Block 14, can offer the first annular groove 144 at the opposite side of the corresponding end of thread 11 of Connection Block 14, in the position of corresponding the first annular groove 144 of discharge head 13, offer the second annular groove 133, and place metallic gasket 15 in the middle of the first annular groove 144, then discharge head 13 is connected with Connection Block 14, by the cavity between the first annular groove 144 and the second annular groove 133, metallic gasket 15 is fixed.
End socket 1412 is arranged to hemispherical, can make flexure strip 142 when being under pressure separately, end socket 1412 is more prone to separately, and sealing with discharging opening 131 of can being more prone to of hemispheric end socket 1412, chute 132 is set simultaneously on discharge head 13, can guarantee that flexure strip 142 is in the process of separating, movement to end socket 1412 limits, guaranteed that end socket 1412 can stablize the permanent work of carrying out, a side at the corresponding limited block 12 of plug 141 arranges perforate chamber 1413, and perforate chamber 1413 arranges and is the crooked setting of cambered surface, in the time of can making the pressure rise in conducting chamber, the plastics that are squeezed can enter in perforate chamber 1413, because perforate chamber 1413 is, cambered surface is crooked to be arranged, the pressure being subject in perforate chamber 1413 can be disperseed to side, be convenient to plug 141 to back down.
As preferably, flexure strip 142 has beryllium-bronze to make, and beryllium-bronze has excellent elasticity capacity, can be convenient to long-term use.
By flexure strip 142 and through hole 143, the axle center even circumferential around Connection Block 14 distributes simultaneously, can make plastics in the middle of through hole 143, discharge more uniformly, and the pressure that the plastics that make discharge in the middle of through hole 143 bring can be distributed to each flexure strip 142 uniformly, makes the service life of flexure strip 142 more permanent.
Protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a counterflow-preventing injection machine nozzle, comprise nozzle main body, described nozzle main body comprises shell and is located at the end of thread on shell, in described shell, be provided with conducting chamber, the corresponding end of thread opposite side of shell is provided with discharge head, on described discharge head, be provided with discharging opening, on described shell, be provided with limited block, it is characterized in that: the opposite side of the corresponding end of thread of described limited block is provided with at least two flexure strips, the mutual butt of the other end of the corresponding limited block of described flexure strip, the other end of the corresponding limited block of described flexure strip is provided with plugging block, described plugging block capable assembling forms plug, on described plug, be provided with the end socket for shutoff discharging opening.
2. counterflow-preventing injection machine nozzle as claimed in claim 1, is characterized in that: described end socket is hemispherical setting, and a side of the corresponding discharging opening of described discharge head is provided with the chute for end socket slippage.
3. counterflow-preventing injection machine nozzle as claimed in claim 2, is characterized in that: a side of the corresponding limited block of described plug is provided with perforate chamber, and described perforate chamber is the crooked setting of cambered surface.
4. counterflow-preventing injection machine nozzle as claimed in claim 3, it is characterized in that: another of the corresponding end of thread of described limited block is provided with Connection Block, described Connection Block is communicated with conducting chamber, and the other end of the corresponding limited block of Connection Block is provided with some through holes, and described discharge head is detachably connected on Connection Block.
5. counterflow-preventing injection machine nozzle according to claim 4, is characterized in that: described flexure strip and through hole are all circularly and evenly distributed around the axle center of Connection Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450031.2U CN203973924U (en) | 2014-08-11 | 2014-08-11 | Counterflow-preventing injection machine nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420450031.2U CN203973924U (en) | 2014-08-11 | 2014-08-11 | Counterflow-preventing injection machine nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203973924U true CN203973924U (en) | 2014-12-03 |
Family
ID=51971405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420450031.2U Expired - Fee Related CN203973924U (en) | 2014-08-11 | 2014-08-11 | Counterflow-preventing injection machine nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203973924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365188A (en) * | 2015-11-24 | 2016-03-02 | 重庆市巴南区新星橡胶厂 | Extruder used for rubber processing |
| CN116653212A (en) * | 2023-05-30 | 2023-08-29 | 浙江恒道科技有限公司 | Be applied to integral type mouth core structure of light guide |
-
2014
- 2014-08-11 CN CN201420450031.2U patent/CN203973924U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365188A (en) * | 2015-11-24 | 2016-03-02 | 重庆市巴南区新星橡胶厂 | Extruder used for rubber processing |
| CN116653212A (en) * | 2023-05-30 | 2023-08-29 | 浙江恒道科技有限公司 | Be applied to integral type mouth core structure of light guide |
| CN116653212B (en) * | 2023-05-30 | 2024-04-19 | 浙江恒道科技股份有限公司 | Be applied to integral type mouth core structure of light guide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204194231U (en) | A kind of point glue equipment | |
| CN203973924U (en) | Counterflow-preventing injection machine nozzle | |
| CN203973923U (en) | Anti-clogging injection machine nozzle | |
| CN205167396U (en) | Nozzle for injection molding machine | |
| CN203994584U (en) | Leakproof pressure injection molding machine screw head | |
| CN205146480U (en) | Filter type nozzle for injection molding machine | |
| CN108145927A (en) | Injection molding system | |
| CN216658809U (en) | Anti-slip injection molding screw for injection molding machine | |
| CN204687240U (en) | A kind of injection machine spring nozzle | |
| CN204526034U (en) | A kind of injection machine injecting mechanism | |
| CN208232271U (en) | A kind of plastic processing Coinjection molding apparatus | |
| CN209397177U (en) | A kind of molding machine for the processing of peony perfumed soap | |
| CN208841711U (en) | A kind of injection molding machine nozzle with choke preventing function | |
| CN213353323U (en) | Heightening type material head of injection molding nozzle of shoe machine | |
| CN204249275U (en) | A kind of injection molding extruder | |
| CN201712120U (en) | Spray head of injection molding machine | |
| CN207724730U (en) | A kind of double injection hole injection molding machines | |
| CN108162343B (en) | Injection-moulding device for plastic piece shaping processing | |
| CN204640727U (en) | Be provided with the Simple injection molding machine structure of through hole | |
| CN203994687U (en) | For the mould on winding-type bell and spigot joint former | |
| CN206426368U (en) | A kind of spiral plastic mold | |
| CN104552833A (en) | Injection molding mechanism of injection molding machine | |
| CN205112245U (en) | Injection molding machine nozzle with backward flow gaseous emission and dehumidification function | |
| CN213082166U (en) | Nail row injection molding machine that production efficiency is high | |
| CN108582658A (en) | a kind of injection moulding machine nozzle structure |
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: 20141203 Termination date: 20190811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |