CN202668924U - Injection system with pressure maintaining function - Google Patents
Injection system with pressure maintaining function Download PDFInfo
- Publication number
- CN202668924U CN202668924U CN 201220269607 CN201220269607U CN202668924U CN 202668924 U CN202668924 U CN 202668924U CN 201220269607 CN201220269607 CN 201220269607 CN 201220269607 U CN201220269607 U CN 201220269607U CN 202668924 U CN202668924 U CN 202668924U
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- CN
- China
- Prior art keywords
- pressure maintaining
- injection
- switching device
- pressurize
- oil cylinder
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- 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 - Lifetime
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an injection system with a pressure maintaining function. The injection system with the pressure maintaining function comprises an injection device, a pressure maintaining device and a switching device, wherein the injection device comprises a feed barrel, a piston and a front cover plate; the pressure maintaining device comprises a pressure maintaining piston head, a pressure maintaining cavity, a piston rod, an oil cylinder, a first cooling component and a second cooling component; and the switching device comprises a shell, an injection runner, a switching valve, a handle and a fixed nozzle. The pressure maintaining oil cylinder is mounted above a pressure maintaining cavity inlet, the pressure maintaining piston head is mounted at the front end of the piston rod and extends into the pressure maintaining cavity. The piston rod moves up and down in the oil cylinder to drive the pressure maintaining piston head to slide in the pressure maintaining cavity, so that the size of volumetric space of the pressure maintaining cavity is adjusted. During injection molding, pressure maintaining is performed for a mould cavity by using the pressure maintaining piston head to compress the volumetric space of the pressure maintaining cavity, so that molding defects are avoided. When the injection system is used for pressure maintaining of materials, subsequent plasticization of the injection materials is performed simultaneously, and accordingly injection molding cycle is shortened effectively while production efficiency is improved.
Description
Technical field
The utility model relates to a kind of injecting systems with pressure holding function.
Background technology
After plastic injection-moulded process was finished, the body that melts in the mould cavity began to cool down contraction, and its internal drop is low.For the plastics that guarantee moulding can not produce contraction distortion, the pressure in the die cavity must be kept a period of time, namely pressurize is executed in the interior compacting of die cavity.In the prior art, the each time action of injection of injecting systems all is to carry out after upper pressurize action is once finished, and causes like this injection cycle of system longer, and production efficiency is lower.
The utility model content
For the problems referred to above, be necessary to provide a kind of injecting systems with pressure holding function that can shorten injection cycle.
The utility model is by the following technical solutions:
A kind of injecting systems with pressure holding function, comprise injection device, pressurizer and switching device, an endfeed of injection device, the other end links to each other with switching device, switching device links to each other with pressurizer again, and injection device is controlled material by switching device and entered pressurizer.
Described switching device comprises shell, injection flow passage, switch valve and fixed nozzle body, one end of described shell links to each other with injection device, the other end links to each other with the fixed nozzle body, described injection flow passage and switch valve are positioned at enclosure, one end of injection flow passage is communicated with injection device, the other end links to each other with described fixed nozzle body, and switch valve is arranged in injection flow passage.
Described switching device also comprises handle, and described handle is installed in the below of shell, and handle links to each other with switch valve.
Described pressurizer comprises pressurize piston head, pressurize chamber, piston rod, oil cylinder, wherein, the pressurize chamber is positioned at the bottom of pressurizer, and be connected with the injection flow passage of switching device, oil cylinder is installed in the top of pressurize chamber entrance by bolt, piston rod is positioned at oil cylinder, and the pressurize piston head is installed in the front end of piston rod, and extend in the pressurize chamber.Piston rod moves up and down in-oil cylinder, and drive the pressurize piston head and in the pressurize chamber, slide, thus the size of regulating pressurize chamber volume space.
Described pressurizer also comprises the first cooling package and the second cooling package, and described the first cooling package is installed on the oil cylinder, and the second cooling package is installed in the piston rod upper end.
Described injection device comprises barrel, piston and front shroud, and an end of barrel is charging aperture, and the other end links to each other with front shroud, and front shroud is fixed on the front end of barrel, and piston is positioned at barrel and fits tightly with the inwall of barrel, can slide along material tube inner wall.
The utility model is when carrying out pressurize to die cavity, and injection work next time is also underway, and this has shortened injection cycle effectively, has improved production efficiency.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of the utility model under inject state.
Fig. 3 is the schematic diagram of the utility model under packing state.
1 injection device, 11 barrels, 12 pistons, 13 front shrouds, 2 pressurizers, 21 pressurize piston heads, 22 pressurize chambeies, 23 piston rods, 24 oil cylinders, 251 first cooling packages, 252 second cooling packages, 3 switching devices, 31 shells, 32 injection flow passages, 33 switch valves, 34 handles, 35 fixed nozzle bodies.
The specific embodiment
As shown in Figure 1, the utility model provides a kind of injecting systems with pressure holding function, comprises injection device 1, pressurizer 2 and switching device 3.The plastics melt that is plastified enters pressurizer 2, thereby material is carried out pressurize by the effect of injection device 1 under the control of switching device 3, to guarantee that product is without forming defect.
Wherein, injection device 1 comprises barrel 11, piston 12 and front shroud 13.One end of barrel 11 is charging aperture, and the other end links to each other with front shroud 13, and front shroud 13 is fixed on the front end of barrel 11, and piston 12 is positioned at barrel 11 and fits tightly with the inwall of barrel 11, can slide along barrel.
Switching device comprises shell 31, injection flow passage 32, switch valve 33, handle 34 and fixed nozzle body 35, and an end of described shell 31 links to each other with injection device 1 by described front shroud 13, and the other end links to each other with fixed nozzle body 35; Described injection flow passage 32 and switch valve 33 are positioned at the inside of shell 31, and an end of injection flow passage 32 is communicated with injection device 1, and the other end links to each other with described fixed nozzle body 35, and switch valve 33 is arranged in injection flow passage 32; Handle 34 is installed in the below of shell 31, and handle 34 links to each other with switch valve 33, and the on off state of gauge tap valve 33.
Before injecting, switch valve 33 is in closed condition, after the plasticizing work of solid plastics is finished, injects, and this moment, switch valve 33 was in open mode, and piston 12 promotes fast plastics melt and enters die cavity, until fill up die cavity, and as shown in Figure 2.At this moment, piston 12 continues to push ahead, in the situation that keep pressure certain, piston rod 23 traction pressurize piston heads 21 move up lentamente, increased the volume space in pressurize chamber 22, thereby the volume that plastics melt is filled increase thereupon.
After injection process was finished, switch valve 33 cut out, and then began to carry out blanking.In the process of blanking, piston 12 is mobile backward, beginning injection process next time.This moment, the body that melts in the die cavity began to cool down contraction, and pressed off in it and begin to reduce, if untimely die cavity is carried out pressurize, will produce the defectives such as injecting products contraction distortion, mould filling be insufficient.As shown in Figure 3, under the effect of oil cylinder 24, pressurize piston head 21 moves down lentamente, the volume space in compression pressurize chamber 22.The body that melts in the pressurize chamber 22 is compressed, and the pressure in the pressurize chamber 22 increases.Because pressurize chamber 22 is communicated with the die cavity of mould, so the body pressure that melts in the die cavity also increases, at this moment, melting in the pressurize chamber 22 known from experience a certain amount of entering in the die cavity, to guarantee abundant filling.So just realized the pressure maintaining effect in the die cavity, thereby guaranteed that injecting products is without forming defect.
The utility model is when carrying out pressurize to die cavity, and injection work next time is also underway, has so effectively shortened injection cycle, has improved production efficiency.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and in detail, but can not therefore be interpreted as it is restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. injecting systems with pressure holding function, it is characterized in that, comprise injection device, pressurizer and switching device, one endfeed of injection device, the other end links to each other with an end of switching device, switching device links to each other with pressurizer again, and injection device is controlled material by switching device and entered pressurizer.
2. a kind of injecting systems with pressure holding function according to claim 1, it is characterized in that, described switching device comprises shell, injection flow passage, switch valve and fixed nozzle body, one end of described shell links to each other with injection device, the other end links to each other with the fixed nozzle body, and described injection flow passage and switch valve are positioned at enclosure, and an end of injection flow passage is communicated with injection device, the other end links to each other with described fixed nozzle body, and switch valve is arranged in injection flow passage.
3. a kind of injecting systems with pressure holding function according to claim 2 is characterized in that, described switching device also comprises handle, and described handle is installed in the below of shell, and handle links to each other with switch valve.
4. according to claim 2 or 3 described a kind of injecting systems with pressure holding function, it is characterized in that, described pressurizer comprises the pressurize piston head, the pressurize chamber, piston rod, oil cylinder, wherein, the pressurize chamber is positioned at the bottom of pressurizer, the top of the injection flow passage of switching device, and be connected with the injection flow passage of switching device, oil cylinder is installed in the top of pressurize chamber entrance by bolt, piston rod is positioned at oil cylinder, the pressurize piston head is installed in the front end of piston rod, and extend in the pressurize chamber, piston rod moves up and down in-oil cylinder, drives the pressurize piston head and slides in the pressurize chamber.
5. a kind of injecting systems with pressure holding function according to claim 4, it is characterized in that, described pressurizer also comprises the first cooling package and the second cooling package, and described the first cooling package is installed on the oil cylinder, and the second cooling package is installed in the piston rod upper end.
6. a kind of injecting systems with pressure holding function according to claim 1 and 2, it is characterized in that, described injection device comprises barrel, piston and front shroud, one end of barrel is charging aperture, the other end links to each other with front shroud, front shroud is fixed on the front end of barrel, and piston is positioned at barrel and fits tightly with the inwall of barrel, can slide along material tube inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269607 CN202668924U (en) | 2012-06-08 | 2012-06-08 | Injection system with pressure maintaining function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269607 CN202668924U (en) | 2012-06-08 | 2012-06-08 | Injection system with pressure maintaining function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202668924U true CN202668924U (en) | 2013-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269607 Expired - Lifetime CN202668924U (en) | 2012-06-08 | 2012-06-08 | Injection system with pressure maintaining function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202668924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464751A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Injection molding mold less prone to generating melted marks |
| CN104999634A (en) * | 2014-04-23 | 2015-10-28 | 震雄机械（深圳）有限公司 | Ejection molding machine and dwelling apparatus thereof |
-
2012
- 2012-06-08 CN CN 201220269607 patent/CN202668924U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464751A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Injection molding mold less prone to generating melted marks |
| CN103464751B (en) * | 2013-08-26 | 2016-06-01 | 苏州米莫金属科技有限公司 | A kind of die for injection molding being unfavorable for producing molten trace |
| CN104999634A (en) * | 2014-04-23 | 2015-10-28 | 震雄机械（深圳）有限公司 | Ejection molding machine and dwelling apparatus thereof |
| CN104999634B (en) * | 2014-04-23 | 2017-07-28 | 震雄机械（深圳）有限公司 | Jet forming machine and its pressurizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 510663 Guangdong, China Hi tech Industrial Development Zone, Guangzhou, No. 19 Shenzhou Road, building on the third floor of the third floor Patentee after: GUANGZHOU UNIQUE INJECTION MOLDING SYSTEM CO., LTD. Address before: 510530, Guangdong Province, Guangzhou, Luogang, Po Road, No. 23, a self-made Patentee before: Guangzhou Yidao Injection Molding Machinery Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190710 Address after: Room 222, 2nd floor, Building B1, No. 6 Jingyue Road, Torch Development Zone, Zhongshan City, Guangdong Province Patentee after: Guangdong Jiuhe Machinery Technology Co., Ltd. Address before: 510663 the 1 1 buildings of Shenzhou Road No. 19, high tech Industrial Development Zone, Guangdong, China Patentee before: GUANGZHOU UNIQUE INJECTION MOLDING SYSTEM CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |