CN203063083U - Injection molding machine - Google Patents
Injection molding machine Download PDFInfo
- Publication number
- CN203063083U CN203063083U CN 201320091673 CN201320091673U CN203063083U CN 203063083 U CN203063083 U CN 203063083U CN 201320091673 CN201320091673 CN 201320091673 CN 201320091673 U CN201320091673 U CN 201320091673U CN 203063083 U CN203063083 U CN 203063083U
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- China
- Prior art keywords
- oil
- injection machine
- control system
- check valve
- injection molding
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- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an injection molding machine comprising an injection molding machine stand, a control system arranged on the injection molding machine stand, and a hydraulic system arranged on the injection molding machine, wherein the control system comprises an energy-saving intelligent control system of the injection molding machine, the energy-saving intelligent control system of the injection molding machine is connected with the hydraulic system through a conducting wire, an oil return pipeline in the hydraulic system is connected with an oil tank after passing by a cooler, two paths of oil overflow openings of a plunger variable pump are available in the hydraulic system, one path of oil overflow opening is connected with the oil tank, a one-way valve is installed between the oil overflow opening and the oil tank, the other path of oil overflow opening is connected on the oil return pipeline and in front of an inlet of the cooler through a one-way valve, and the opening pressure of the one-way valve connected to the oil tank is larger than the opening pressure of the one-way valve connected to the cooler. The injection molding machine provided by the utility model is good in sealing property, high in heat utilization rate and excellent in practicability and market promotion values.
Description
Technical field
The utility model relates to a kind of injection machine.
Background technology
Work in the injection machine is that namely oil cylinder is finished by hydraulic mechanism mostly at present, and the oil pressure in the oil cylinder then is by oil pump, as constant displacement pump or variable pump, provides through Hydraulic Station.Plunger variable pump is to use more a kind of oil pump in injection machine, and it has suction inlet, working oil path outlet and oil spilling mouth.The formation of whole hydraulic system is: the suction 17-1 of plunger variable pump connects fuel tank, and its working oil path outlet is connected fuel tank through a cooler again behind Hydraulic Station and each oil cylinder, oil spilling mouth connection fuel tank.Hydraulic system]: make situation: plunger variable pump releases the hydraulic oil of metered flow when operate as normal.When injection machine complete machine everything was not worked, the hydraulic oil of all flows was discharged through the oil spilling mouth of pump and is arrived fuel tank.When injection machine complete machine various actions was worked, the hydraulic oil of most of flow arrived each operating cylinder from exporting with working oil path through Hydraulic Station, and kept certain pressure, and the hydraulic oil that releases on a small quantity arrives fuel tank through the oil spilling mouth equally.
In the injection machine standby or when only needing the work of certain small oil tank, then only need a spot of hydraulic oil enter working oil path, most of hydraulic oil overflows the arrival fuel tank through the oil spilling mouth.In each course of work, each oil cylinder oil return can produce certain pressure when subcooler, and this pressure is called return pressure.In this structure, the oil spilling mouth is direct-connected with fuel tank, no matter the oil spillage size all just enters fuel tank without cooling.Because hydraulic oil can make oily temperature rise in compression process, compress again as entering plunger variable pump without cooling, then oily temperature just can raise again, the hydraulic oil of high temperature just can influence the service life of each seal in the whole hydraulic system, hydraulic oil also can raise and the viscosity reduction by Yin Wendu simultaneously, causes seepage.Be the hydraulic system in the prior art injection machine, reduce because its unreasonable structure causes its sealing property.
The utility model content
The purpose of this utility model is at above-mentioned defective, and a kind of simple in structure, good seal performance, injection machine that heat utilization ratio is high are provided.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of injection machine, comprise the injection machine pallet and be arranged on control system on the injection machine pallet, be arranged on the hydraulic system on the injection machine, described control system comprises the injection machine energy-saving intelligence control system, described injection machine energy-saving intelligence control system, comprise the power frequency major loop that breaker, A.C. contactor and Oil pump electrical machinery are formed, described A.C. contactor two ends are parallel with frequency converter and another A.C. contactor of serial connection, the control signal of frequency converter and another A.C. contactor reception control circuit; Described injection machine energy-saving intelligence control system is connected with described hydraulic system lead; In hydraulic system, return line connects fuel tank behind cooler, and the oil spilling mouth of plunger variable pump has two-way in the hydraulic system, and wherein one road oil spilling mouth connects fuel tank, it is characterized in that a check valve has been installed between this oil spilling mouth and fuel tank, the flow direction of this check valve is to fuel tank from the oil spilling mouth; Another road oil spilling mouth through a check valve be connected on the return line, before the cooler inlet, the flow direction of this check valve is to cooler from the oil spilling mouth; Be connected to fuel tank check valve open pressure greater than the pressure of opening of the check valve that is connected to cooler.
The injection machine that the utility model provides, good seal performance, heat utilization ratio height have good practicability and market popularization value.
Description of drawings
Figure l is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of injection machine, comprise injection machine pallet 1 and be arranged on control system 2 on the injection machine pallet, be arranged on the hydraulic system 3 on the injection machine, described control system comprises injection machine energy-saving intelligence control system 4, described injection machine energy-saving intelligence control system, comprise the power frequency major loop that breaker, A.C. contactor and Oil pump electrical machinery are formed, described A.C. contactor two ends are parallel with frequency converter and another A.C. contactor of serial connection, the control signal of frequency converter and another A.C. contactor reception control circuit; Described injection machine energy-saving intelligence control system is connected with described hydraulic system lead; In hydraulic system, return line connects fuel tank behind cooler, and the oil spilling mouth of plunger variable pump has two-way in the hydraulic system, and wherein one road oil spilling mouth connects fuel tank, it is characterized in that a check valve has been installed between this oil spilling mouth and fuel tank, the flow direction of this check valve is to fuel tank from the oil spilling mouth; Another road oil spilling mouth through a check valve be connected on the return line, before the cooler inlet, the flow direction of this check valve is to cooler from the oil spilling mouth; Be connected to fuel tank check valve open pressure greater than the pressure of opening of the check valve that is connected to cooler.
Be enlightenment with above-mentioned foundation desirable embodiment of the present utility model, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (1)
1. injection machine, it is characterized in that, comprise the injection machine pallet and be arranged on control system on the injection machine pallet, be arranged on the hydraulic system on the injection machine, described control system comprises the injection machine energy-saving intelligence control system, described injection machine energy-saving intelligence control system, comprise the power frequency major loop that breaker, A.C. contactor and Oil pump electrical machinery are formed, described A.C. contactor two ends are parallel with frequency converter and another A.C. contactor of serial connection, the control signal of frequency converter and another A.C. contactor reception control circuit; Described injection machine energy-saving intelligence control system is connected with described hydraulic system lead; In hydraulic system, return line connects fuel tank behind cooler, and the oil spilling mouth of plunger variable pump has two-way in the hydraulic system, and wherein one road oil spilling mouth connects fuel tank, it is characterized in that a check valve has been installed between this oil spilling mouth and fuel tank, the flow direction of this check valve is to fuel tank from the oil spilling mouth; Another road oil spilling mouth through a check valve be connected on the return line, before the cooler inlet, the flow direction of this check valve is to cooler from the oil spilling mouth; Be connected to fuel tank check valve open pressure greater than the pressure of opening of the check valve that is connected to cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091673 CN203063083U (en) | 2013-02-28 | 2013-02-28 | Injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091673 CN203063083U (en) | 2013-02-28 | 2013-02-28 | Injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203063083U true CN203063083U (en) | 2013-07-17 |
Family
ID=48761907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320091673 Expired - Fee Related CN203063083U (en) | 2013-02-28 | 2013-02-28 | Injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203063083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727093A (en) * | 2013-12-31 | 2014-04-16 | 宁波腾隆户外用品有限公司 | Integrated hydraulic drive system |
-
2013
- 2013-02-28 CN CN 201320091673 patent/CN203063083U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727093A (en) * | 2013-12-31 | 2014-04-16 | 宁波腾隆户外用品有限公司 | Integrated hydraulic drive system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20140228 |