CN202607995U - Control device for low-pressure mould closing in injection moulding machine - Google Patents
Control device for low-pressure mould closing in injection moulding machine Download PDFInfo
- Publication number
- CN202607995U CN202607995U CN 201120558640 CN201120558640U CN202607995U CN 202607995 U CN202607995 U CN 202607995U CN 201120558640 CN201120558640 CN 201120558640 CN 201120558640 U CN201120558640 U CN 201120558640U CN 202607995 U CN202607995 U CN 202607995U
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- China
- Prior art keywords
- mould
- valve
- pressure
- oil return
- control device
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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 - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a control device for low-pressure mould closing in an injection moulding machine. The control device comprises a mould closing valve and a mould opening valve which are controlled by a PLC (programmable logic controller), and a mould closing oil return control valve, wherein an cartridge valve and a pressure valve are arranged in the mould closing oil return control valve. Because the cartridge valve and the pressure valve are additionally arranged in the mould closing oil return control valve, a movable mould plate generates a resistance while running to a low-pressure section, so that a mould assembling speed is instantaneously decreased in a short time, thus avoiding influence on a mould assembling cycle and an inertia problem; and the successive action from the stopping of mould assembling to the starting of mould clamping is stable, fast and smooth, so that impact is avoided during mould assembling, thus protecting a mould, and reducing mould assembling time as much as possible.
Description
Technical field:
The utility model relates to the injection machine technical field, and the low pressure that especially relates to a kind of injection machine is closed the mould control device.
Background technology:
General injection machine all has the matched moulds defencive function; When moving platen runs to low pressure stage; Reduce pressure and speed, between mould dynamic model and cover half, foreign material are arranged, resistance strengthens above low-voltage variation and understands automatic die sinking during the time during because of matched moulds; Can produce certain inertia and reduce the sensitivity of closing mould greatly like the too fast moving platen of speed, the pass mould can influence the matched moulds cycle and underspeed slowly in advance.Therefore, how to increase the sensitivity of closing mould, not influencing the matched moulds cycle simultaneously again becomes the problem that the insider must solve.
The utility model content:
The purpose of the utility model is the weak point that exists to prior art and provides a kind of injection machine low pressure to close the mould control device that it neither influences the matched moulds cycle of injection machine, can not make moving platen generation inertia problem again and influence the sensitivity of closing mould.
For realizing above-mentioned purpose, the injection machine low pressure of the utility model is closed the mould control device and is included Guan Mofa, die sinking valve and pass mould oil return control valve by PLC control, wherein, closes in the mould oil return control valve and is provided with inserted valve and pressure valve.
The beneficial effect of the utility model is: owing in closing mould oil return control valve, increased inserted valve and pressure valve, when moving platen runs to low pressure stage, produce resistance, make the instantaneous at short notice decline of closure pressing speed; So neither can influence the matched moulds cycle; Do not have the existence of inertia problem again, this priority stable action that begins to clamp to mould before matched moulds stops is fast smooth and easy, and mould is closed up does not have impact; Thereby the protection mould, and reduce the matched moulds time as far as possible.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is done further explanation:
Accompanying drawing 1 is the hydraulic control schematic diagram of the utility model.
The specific embodiment:
The following stated is merely the preferred embodiment of the utility model, does not therefore limit the protection domain of the utility model.
See shown in Figure 1: the injection machine low pressure of the utility model is closed the mould control device and is included pass mould valve 10, die sinking valve 20 and pass mould oil return control valve 30 by PLC control, closes in the mould oil return control valve 30 and is provided with inserted valve 40 and pressure valve 50.
Regulate the pressure size of pressure valve 50 during the utility model work, close mould valve 10 when closing mould and go into electric control, inserted valve 40 open modes with Guan Mo oil return control valve 30; When the physical location of moving platen reaches pass mould low pressure desired location; Close mould oil return control valve 30 and cut electric control, make and close resistance of mold process generation, the size of this resistance equals the size of pressure valve 50 pressure; Oil return is obstructed; Impel and close instantaneous the slowing down of mould speed, mould is closed up does not have impact, thus the protection mould; This moment, action switched to the low pressure lower-speed state, and when the moving platen physical location arrives pass mould high pressure desired location, close mould oil return control valve 30 and go into electric control, pressure valve 50 oil returns, resistance disappears, and inserted valve 40 is opened, and oil return non-resistance, mould begin to clamp and keep; Action this moment switches to closes the mould high pressure conditions, carries out high-voltage lock mould, prepares for getting into next step injection moulding.
Claims (1)
1. an injection machine low pressure is closed the mould control device, includes Guan Mofa (10), die sinking valve (20) and pass mould oil return control valve (30) by PLC control, it is characterized in that: close in the mould oil return control valve (30) and be provided with inserted valve (40) and pressure valve (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120558640 CN202607995U (en) | 2011-12-23 | 2011-12-23 | Control device for low-pressure mould closing in injection moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120558640 CN202607995U (en) | 2011-12-23 | 2011-12-23 | Control device for low-pressure mould closing in injection moulding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202607995U true CN202607995U (en) | 2012-12-19 |
Family
ID=47341726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120558640 Expired - Fee Related CN202607995U (en) | 2011-12-23 | 2011-12-23 | Control device for low-pressure mould closing in injection moulding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202607995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223575A1 (en) * | 2020-05-07 | 2021-11-11 | 海天塑机集团有限公司 | Method and apparatus for eliminating influence on mold closing precision in case of mold closing overshoot during compression molding of injection molding machine |
-
2011
- 2011-12-23 CN CN 201120558640 patent/CN202607995U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223575A1 (en) * | 2020-05-07 | 2021-11-11 | 海天塑机集团有限公司 | Method and apparatus for eliminating influence on mold closing precision in case of mold closing overshoot during compression molding of injection molding machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20161223 |