CN102241115A - Modified injection rod of injection molding machine - Google Patents
Modified injection rod of injection molding machine Download PDFInfo
- Publication number
- CN102241115A CN102241115A CN2010101728874A CN201010172887A CN102241115A CN 102241115 A CN102241115 A CN 102241115A CN 2010101728874 A CN2010101728874 A CN 2010101728874A CN 201010172887 A CN201010172887 A CN 201010172887A CN 102241115 A CN102241115 A CN 102241115A
- Authority
- CN
- China
- Prior art keywords
- injection
- injection rod
- wall
- rod
- plastic
- 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
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a modified injection rod of an injection molding machine. The technical scheme of the injection rod is that: the injection rod comprises a conversion seat and an injection tube connecting with the conversion seat; the conversion seat is provided with a nozzle and a vertical channel body; the injection rod is arranged in the injection tube; the head of the injection rod comprises a conical surface and a backflow boss; and the outer wall of the backflow boss has a sealed fit with the inner wall of the injection tube. The modified injection rod of the present invention is characterized in that: the head of the injection rod is transformed into a structure which comprises two parts of the conical surface and the backflow boss from a structure which only comprises a conical surface in the prior art; when plastic is poured into a cavity, partial plastic flows along the conical surface of the injection rod and is blocked by the backflow boss when flowing to the bottom of the conical surface, so most momentum of the plastic is offset even the plastic is in a stationary state, thereby a case that the molten plastic enters into a gap between the wall of the injection rod and the inner wall of the injection tube is effectively prevented, the waste of the plastic is reduced, the utilization rate of raw materials is improved, and simultaneously frictional force between the wall of the injection rod and the inner wall of the injection tube remains basically unchanged to ensure the injection pressure and the speed of the molten plastic.
Description
Technical field
The present invention relates to a kind of injection machine modified injection rod, belong to the plastics machinery field.
Background technology
Injecting systems is one of topmost part in the injection machine, as shown in Figure 3, it comprises conversion seat 2, conversion seat 2 is installed injection tube 5, nozzle and vertical run body, the vertical run body connects feeding device, injection rod 4 ' is installed, 2 control unidirectional charging of vertical run body and the unidirectional dischargings of nozzle of conversion seat in the injection tube 5.In a working cycles of injection machine, behind the plastics heating plasticizing with some in official hour, and under certain pressure and speed, molten plastic is injected mold cavity finish, so the quality of injecting systems performance is to weigh the important indicator of injection machine performance quality by injecting systems.For ease of discharging, the conversion seat is made conical cavity with the injection tube junction at present, thereby for making the material in the conical cavity can inject die cavity raising raw material availability, therefore the injection rod head is made the cone 41 ' that cooperates with conical cavity, the conical surface of cone 41 ' (side) bottom contacts with injection tube inwall 51, but there is defective in the injection rod of this structure: promoting injection rod in die cavity material feeding process, molten plastic pressure in the injection tube increases, and under the guiding of cone scalene cone, enter easily in the space between injection rod wall and the injection tube inwall, the one, the waste plastics reduce raw material availability; The 2nd, enter molten plastic in injection rod wall and the injection tube inwall gap and catch a cold easily and solidify, increased the frictional force between injection rod wall and the injection tube inwall, finally cause molten plastic pressure and injection speed in the injection tube to be difficult to be guaranteed.
Summary of the invention
The objective of the invention is shortcoming at prior art, when providing a kind of past die cavity to inject molten plastic, avoid entering the gap of injection rod wall and injection tube inwall along the plastics that the cone scalene cone flows, thereby the raising raw material availability, and guarantee the injection pressure of molten plastic and the injection machine modified injection rod of injection speed.
The technical solution adopted in the present invention is to achieve the above object of the invention:
Injection machine modified injection rod, comprise conversion seat and the injection tube that links to each other with the conversion seat, the conversion seat is gone up nozzle and vertical run body is installed, injection rod is arranged in the injection tube, the head that it is characterized in that described injection rod is made of taper seat and backflow boss, and the backflow outer wall of boss cooperates with the injection tube inner wall sealing.
Characteristics of the present invention are changed system into the injection rod head by taper seat and backflow boss two parts by taper seat of the prior art and are constituted, in die cavity material feeding process, when just having promoted injection rod and having made molten plastic supercharging in the injection tube, partly plastic wherein can flow along the taper seat of injection rod, plastics flow to taper seat bottom because the stopping of the boss that is subjected to refluxing, offset most of momentum of mobile molten plastic even it is remained static, prevent that effectively molten plastic from entering the space between injection rod wall and the injection tube inwall, reduce the waste of plastics, improved raw material availability; Enter space between injection rod wall and the injection tube inwall owing to stopped molten plastic, so force of sliding friction between injection rod wall and the injection tube inwall remains unchanged substantially, thereby guaranteed the injection pressure and the injection speed of molten plastic.
Described backflow boss is the plane, the backflow boss is 60 °-150 ° with the angle of the corresponding element of cone of described taper seat, be preferably 60 °-100 °, angle is more little, blocking effect is good more, plastics remain static after flowing to the taper seat bottom basically when angle is 60 °-100 °, have further improved the blocking effect of backflow boss.
Described backflow boss is a curved surface; the curved surface outer edge is shaped on barb; curved surface and described taper seat fuse; the cross section that fuses is fishhook-type; described barb outer wall cooperates with the injection tube inner wall sealing; the backflow boss blocking effect of this structure and above-mentioned angle are that 60 °-100 ° backflow boss blocking effect is basic identical, flow to when molten plastic behind the backflow boss of taper seat bottom owing to be subjected to the barrier effect of barb and also will remain static, the blocking effect of the boss of guaranteeing to reflux.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the local structure for amplifying schematic diagram of a-quadrant among Fig. 1;
Fig. 3 is the structural representation of injection rod mechanism in the prior art;
Fig. 4 is the injection rod head construction schematic diagram of the embodiment of the invention two.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further.
Embodiment one:
As shown in Figure 1 and Figure 2, injection machine modified injection rod, comprise conversion seat 2 and with conversion seat 2 injection tubes that link to each other 5, on the conversion seat 2 nozzle 1 and vertical run body 3 are installed, injection rod 4 is arranged in the injection tube 5, the head 43 that it is characterized in that described injection rod 4 is made of taper seat 41 and backflow boss 42, and backflow boss 42 edges and injection tube inwall 51 are sealed and matched.Characteristics of the present invention are changed system into injection rod 4 heads 43 by taper seat 41 and backflow boss 42 two parts by taper seat of the prior art and are constituted, in die cavity material feeding process, when just having promoted injection rod 4 and having made molten plastic supercharging in the injection tube 5, partly plastic wherein can flow along the taper seat 41 of injection rod 4, plastics flow to taper seat 41 bottoms owing to be subjected to and reflux stopping of boss 42, offset most of momentum of mobile molten plastic even it is remained static, prevent that effectively molten plastic from entering the space between injection rod wall and the injection tube inwall 51, reduce the waste of plastics, improved raw material availability; Enter space between injection rod wall and the injection tube inwall 51 owing to stopped molten plastic, so force of sliding friction between injection rod wall and the injection tube inwall 51 remains unchanged basically, thereby guarantee the injection pressure and the injection speed of molten plastic.The boss 42 that wherein refluxes is the plane, and backflow boss 42 is 60 °-150 ° with the angle α of described taper seat 41 corresponding circular cone 44 buses, is preferably 60 °-100 °; α is more little for angle, and blocking effect is good more, and plastics remain static after flowing to the taper seat bottom basically when angle is 60 °-100 °, have further improved the blocking effect of backflow boss 42.
Embodiment two:
As Fig. 1; shown in Figure 4; injection machine modified injection rod; comprise conversion seat 2 and with conversion seat 2 injection tubes that link to each other 5; on the conversion seat 2 nozzle 1 and vertical run body 3 are installed; injection rod 4 is arranged in the injection tube 5; the head 43 that it is characterized in that described injection rod 4 is made of taper seat 41 and backflow boss 42; described backflow boss 42 is a curved surface; the curved surface outer edge is shaped on barb 45; curved surface and described taper seat 41 fuse; the cross section that fuses is fishhook-type; described barb 45 outer walls and injection tube inwall 51 are sealed and matched; the backflow boss blocking effect of this structure and above-mentioned angle are that 60 °-100 ° backflow boss 41 blocking effects are basic identical, flow to when molten plastic behind the backflow boss 41 of taper seat 41 bottoms owing to be subjected to the barrier effect of barb 45 and also will remain static, the blocking effect of the boss 41 of guaranteeing to reflux.
Claims (4)
1. injection machine modified injection rod, comprise conversion seat (2) and the injection tube (5) that links to each other with conversion seat (2), conversion seat (2) is gone up nozzle (1) and vertical run body (3) is installed, injection rod (4) is arranged in the injection tube (5), the head (43) that it is characterized in that described injection rod (4) is made of taper seat (41) and backflow boss (42), and the outer wall of backflow boss (42) and injection tube inwall (51) are sealed and matched.
2. injection machine modified injection rod according to claim 1 is characterized in that described backflow boss (42) is the plane, and backflow boss (42) is 60 °-150 ° with the angle (α) of the corresponding circular cone of described taper seat (41) (44) bus.
3. injection machine modified injection rod according to claim 2, the angle (α) that it is characterized in that described circular cone (44) bus and backflow boss (42) are 60 °-100 °.
4. injection machine modified injection rod according to claim 1, it is characterized in that described backflow boss (42) is a curved surface, the curved surface outer edge is shaped on barb (45), and curved surface and described taper seat (41) fuse, and described barb (45) outer wall and injection tube inwall (51) are sealed and matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101728874A CN102241115A (en) | 2010-05-12 | 2010-05-12 | Modified injection rod of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101728874A CN102241115A (en) | 2010-05-12 | 2010-05-12 | Modified injection rod of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102241115A true CN102241115A (en) | 2011-11-16 |
Family
ID=44959444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101728874A Pending CN102241115A (en) | 2010-05-12 | 2010-05-12 | Modified injection rod of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102241115A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342221A (en) * | 1989-07-10 | 1991-02-22 | Sumitomo Heavy Ind Ltd | Seal mechanism of injection molding machine |
| US5439633A (en) * | 1994-07-27 | 1995-08-08 | Spirex Corporation | Plastic extruder having a mixing valve with automatic shut-off |
| CN2432033Y (en) * | 2000-04-25 | 2001-05-30 | 湖北省鄂州市碧石塑料机械厂 | injection molding machine |
| CN101249710A (en) * | 2008-04-02 | 2008-08-27 | 朱俊毅 | Injection mechanism of injection machine |
| CN101422955A (en) * | 2007-11-02 | 2009-05-06 | 联塑(杭州)机械有限公司 | Two-segment type ejection device |
| CN201736421U (en) * | 2010-05-12 | 2011-02-09 | 浙江德玛克机械有限公司 | Improved injection rod of injection molding machine |
-
2010
- 2010-05-12 CN CN2010101728874A patent/CN102241115A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342221A (en) * | 1989-07-10 | 1991-02-22 | Sumitomo Heavy Ind Ltd | Seal mechanism of injection molding machine |
| US5439633A (en) * | 1994-07-27 | 1995-08-08 | Spirex Corporation | Plastic extruder having a mixing valve with automatic shut-off |
| CN2432033Y (en) * | 2000-04-25 | 2001-05-30 | 湖北省鄂州市碧石塑料机械厂 | injection molding machine |
| CN101422955A (en) * | 2007-11-02 | 2009-05-06 | 联塑(杭州)机械有限公司 | Two-segment type ejection device |
| CN101249710A (en) * | 2008-04-02 | 2008-08-27 | 朱俊毅 | Injection mechanism of injection machine |
| CN201736421U (en) * | 2010-05-12 | 2011-02-09 | 浙江德玛克机械有限公司 | Improved injection rod of injection molding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201736421U (en) | Improved injection rod of injection molding machine | |
| CN202498691U (en) | Plastic injection mold offset cross type internal heating multi-gating hot runner | |
| CN202412606U (en) | Hot runner injection molding hot nozzle structure | |
| CN102241115A (en) | Modified injection rod of injection molding machine | |
| CN103128950A (en) | Pressure-equalizing hot granulator head | |
| CN201333784Y (en) | Injection mold | |
| CN102248631B (en) | One-through shaping technology of long plastic tube with joint | |
| CN205522356U (en) | Meltallizing conversion equipment of injection molding machine | |
| CN204749143U (en) | A the gating system for injection mold kazakhstan husband's mode structure | |
| CN204749147U (en) | Needle valve hot runner system of most advanced direction | |
| CN202805601U (en) | Multi-layer composite extruding die head | |
| CN212385909U (en) | Shearing-free double-sealing-glue hot runner nozzle | |
| CN201095180Y (en) | Z-shaped heat flow passage for plastic injection die | |
| CN201907181U (en) | Inclined melt adhesive runner of plastic injection molding machine | |
| CN203712975U (en) | Sizing material injection system of wire harness jacket mold | |
| CN203600537U (en) | Anti-off sprue bush of sealing ring | |
| CN205835827U (en) | A kind of injection machine air-assisted extrusion nozzle arrangements | |
| CN205705080U (en) | A kind of modified form ox horn enters glue ejecting structure | |
| CN202378240U (en) | Novel casting structure for hot runner mould | |
| CN202079739U (en) | Check valve | |
| CN203600557U (en) | Injection mould | |
| CN103660176A (en) | Inner sprue tip of heat flow passage die | |
| CN210590421U (en) | Injection molded structure of HDPE | |
| CN204367332U (en) | With the injection molding of curved lever | |
| CN203713028U (en) | Extrusion die for compound extruded piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111116 |