CN106313460B - Injection molding machine open mold safety control system - Google Patents
Injection molding machine open mold safety control system Download PDFInfo
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- CN106313460B CN106313460B CN201611040758.3A CN201611040758A CN106313460B CN 106313460 B CN106313460 B CN 106313460B CN 201611040758 A CN201611040758 A CN 201611040758A CN 106313460 B CN106313460 B CN 106313460B
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- Prior art keywords
- oil circuit
- valve
- open mold
- oil
- control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/82—Hydraulic or pneumatic circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of injection molding machine open mold safety control system, comprising: fuel tank, to store hydraulic oil；Oil inlet oil circuit, with fuel tank connection and for conveying hydraulic oil；Open mold oil circuit, with oil inlet oil circuit connection and for controlling open mold movement；Security control oil circuit is connected with fuel tank and open mold oil circuit, to provide the pressure of a normal switching-off for the part that does not need work in open mold oil circuit, to guarantee the normal operation of whole system；Die sinking mechanism at a slow speed, and security control oil circuit and open mold oil circuit connection, to reduce opening speed；Oil return circuit is arranged between open mold oil circuit and fuel tank, the hydraulic oil after recycling in open mold oil circuit to be back in fuel tank.By above-mentioned injection molding machine open mold safety control system, structure is simple, and realizes that oil circuit provides a normal switching-off pressure using security control oil circuit for open mold, to guarantee that entire oil circuit operates normally.
Description
Technical field
The present invention relates to hydraulic transmission technology field more particularly to a kind of injection molding machine open mold safety control systems.
Background technique
Injection molding machine has being capable of disposal molding external form is complicated, accurate size or quality with metal insert are dense modeling
Material products, therefore injection molding machine is widely used in national defence, electromechanics, automobile, communications and transportation, material are built, pack, agricultural and people day
Normal various fields of recent life.
Existing injection molding machine general work process are as follows: mode transfer-molding-neutron penetrates shifting-injection-cooling-die sinking-into-colloidal sol-
Neutron is moved back-is ejected.The generally linear course of work of the above-mentioned course of work is controlled in this course of work by an oil circuit
All executive components.But in practical applications, especially during open mold, when the die sinking control unit division of labor in oil circuit
Control section is molded when making to stop working, or die sinking control section should stop work when molding control section and working
Make, to guarantee the normal operation of entire oil circuit.So provide one kind can control injection molding machine open mold work normally and die sinking and
The impregnable system of clamping process, becomes current urgent problem to be solved.
Summary of the invention
The present invention provides a kind of injection molding machine open mold safety control system, the system comprises:
Fuel tank, to store hydraulic oil；
Oil inlet oil circuit, with the fuel tank connection and for conveying hydraulic oil；
Open mold oil circuit, with the oil inlet oil circuit connection and for controlling open mold movement；
Security control oil circuit is connected with the fuel tank and the open mold oil circuit, to for the open mold oil circuit
In do not need work part provide a normal switching-off pressure, to guarantee the normal operation of whole system；
It is opened mechanism at a slow speed, it is fast to reduce die sinking with the security control oil circuit and the open mold oil circuit connection
Degree；
Oil return circuit is arranged between the open mold oil circuit and the fuel tank, to will be through the open mold oil circuit
Hydraulic oil after middle circulation is back in the fuel tank.
Preferably, the open mold oil circuit includes:
Pilot control mechanism is connected with the security control oil circuit, to control the security control oil circuit to described
Working portion does not provide a normal switching-off pressure in open mold oil circuit, i.e. pilot control acts on；
Open mold realizes oil circuit, with the oil inlet oil circuit and pilot control mechanism connection；
Hydraulic cylinder realizes that oil circuit connection, the open mold realize that hydraulic oil drives the liquid in oil circuit with the open mold
The movement of piston in cylinder pressure, and then realize die sinking or mould assembling action.
Preferably, the county road control unit includes the first electromagnetism solenoid directional control valve, the second solenoid directional control valve and third electricity
Magnetic reversal valve；The security control oil circuit includes die sinking unit and closing unit, and the die sinking unit includes first pressure inserting
Valve and first direction inserted valve, the closing unit include second direction inserted valve and second pressure inserted valve；Wherein, described
One solenoid directional control valve is connected to the control mouth of the first pressure inserted valve by pipeline, and second solenoid directional control valve passes through pipe
Road is connected to the control mouth of second pressure inserted valve described in the second direction inserted valve level-one, and the third solenoid directional control valve is logical
Piping is connected to the control mouth of the first direction inserted valve；The first direction inserted valve and the second direction inserted valve
A main hydraulic fluid port with oil inlet oil circuit connection, another main hydraulic fluid port of the first direction inserted valve be connected to it is described first pressure
On one main hydraulic fluid port of power inserted valve, another main hydraulic fluid port of the second pressure inserted valve is connected to the second pressure inserting
On one main hydraulic fluid port of valve.
Preferably, mechanism is a third direction inserted valve, control mouth and second electromagnetic switch at a slow speed for the die sinking
Joined between valve and the third solenoid directional control valve by the first shuttle valve connection, a main hydraulic fluid port and the second direction inserted valve
Logical, another main hydraulic fluid port connection is into the fuel tank.
Preferably, the security control oil circuit includes sequentially connected first overflow check valve, pressure gauge and accumulator,
Wherein the first overflow check valve also with fuel tank connection.
Preferably, the security control oil circuit also with a safety valve connection, the safety valve also with one second shuttle valve connection,
Control mouth of the connection of oil circuit all the way of second shuttle valve to the second direction inserted valve, another way oil circuit difference connection to institute
State the control mouth of the second solenoid directional control valve and the second pressure inserted valve.
Above-mentioned technical proposal has the following advantages that or the utility model has the advantages that by above-mentioned injection molding machine open mold safety control system,
Structure is simple, and realizes that oil circuit provides a normal switching-off pressure using security control oil circuit for open mold, to guarantee entire oil circuit
It operates normally.Except before this, the setting of safety valve improves the safety in clamping process.
Detailed description of the invention
With reference to appended attached drawing, more fully to describe the embodiment of the present invention.However, appended attached drawing be merely to illustrate and
It illustrates, and is not meant to limit the scope of the invention.
Fig. 1 is a kind of structural schematic diagram of injection molding machine open mold safety control system of the present invention；
In attached drawing: 1, fuel tank 1；2, open mold oil circuit 2；20, hydraulic cylinder 20；21, the first solenoid directional control valve 21；22, second
Solenoid directional control valve 22；23, third solenoid directional control valve 23；24, first pressure inserted valve 24；25, first direction inserted valve 25；26,
Second direction inserted valve 26；27, second pressure inserted valve 27；28, the first shuttle valve 28；3, security control oil circuit 3；31, first overflows
Flow check valve 31；32, pressure gauge 32；33, accumulator 33；34, the first check valve 34；35, second one-way valve 35；4, it is opened at a slow speed
Mechanism 4；41, third direction inserted valve；42, the second shuttle valve 42；5, motor 5；6, cooler 6；7, the second overflow check valve 7.
Specific embodiment
A kind of injection molding machine open mold safety control system of the present invention is carried out in the following with reference to the drawings and specific embodiments detailed
Explanation.
As shown in Figure 1, a kind of injection molding machine open mold safety control system, comprising:
Fuel tank 1, to provide hydraulic oil to one oil circuit of entire control；
Oil inlet oil circuit, with 1 connection of fuel tank and for conveying hydraulic oil；
Open mold oil circuit 2, with oil inlet oil circuit connection and for controlling open mold movement；
Security control oil circuit 3 is connected with fuel tank 1 and open mold oil circuit 2, to not need in open mold oil circuit 2
The part of work provides the pressure of a normal switching-off, to guarantee the normal operation of entire oil circuit；
Oil return circuit is connected with open mold oil circuit 2 and fuel tank 1 respectively, to the liquid that will be flowed out in open mold oil circuit 2
Pressure oil returns to transport into fuel tank 1；
Die sinking mechanism 4 at a slow speed, and pilot control mechanism and die sinking unit connection, to reduce die sinking movement speed, with
Guarantee that opening speed is unlikely to too fast.
Specifically, in above-mentioned injection molding machine open mold safety control system, for fuel tank 1 to oil inlet oil circuit fuel feeding, oil inlet is oily
The hydraulic oil on road flows into open mold oil circuit 2, and open mold oil circuit 2 is driven to act, and realizes die sinking or molding.In this process, pacify
Full control oil circuit 3 is that open mold oil circuit 2 provides a normal switching-off pressure, to control when open mold oil circuit 2 realizes die sinking movement
Molding part is closed, and control die sinking part is closed when molding oil circuit and realizing die sinking movement.
For further, open mold oil circuit 2 includes:
Pilot control mechanism is connected with security control oil circuit 3, to control security control oil circuit 3 to open mold oil circuit 2
In not working portion provide a normal switching-off pressure, i.e., pilot control act on；
Open mold realizes oil circuit, and with oil inlet oil circuit and pilot control mechanism connection, which realizes that oil circuit includes opening
Form unit and closing unit, respectively to realize die sinking, mould assembling action；
Hydraulic cylinder 20 realizes that oil circuit connection, open mold realize that hydraulic oil drives living in hydraulic cylinder 20 in oil circuit with open mold
The movement of plug, and then realize die sinking or mould assembling action.
Specifically, in the open mold oil circuit 2, mainly realize what oil circuit and hydraulic cylinder 20 were constituted by open mold.It opens
Oil circuit and oil line pipe connection are realized in molding, and oil line pipe realizes that oil circuit conveys hydraulic oil to the open mold, are realized pair with this
The control of hydraulic cylinder 20.It is to be noted, however, that since open mold realizes that oil circuit includes die sinking unit and closing unit, and
The two units control the different movements of hydraulic cylinder 20 respectively, realize die sinking with this and mold the two movements.So in order to protect
That demonstrate,proves in entire oil circuit that the two act does not interfere with each other, thus with open mold realize that oil circuit is connected there are also pilot control machines
Structure, the pilot control mechanism and 3 connection of security control oil circuit.Pilot control mechanism is provided hydraulic by security control oil circuit 3
Oil to control die sinking unit and closing unit which unit works, and then guarantees the normal operation of entire oil circuit.
For further, pilot control unit includes the first solenoid directional control valve 21, the second solenoid directional control valve 22 and third electricity
Magnetic reversal valve 23, die sinking unit includes first pressure inserted valve 24 and first direction inserted valve 25, and closing unit includes second party
To inserted valve 26 and second pressure inserted valve 27.Wherein the first solenoid directional control valve 21 is connected to first pressure inserted valve by pipeline
24 control mouth, the second solenoid directional control valve 22 are connected to second direction inserted valve 26 and second pressure inserted valve 27 by pipeline
Control mouth, third solenoid directional control valve 23 connect the control mouth of inserted valve 25 in a first direction by pipeline.In addition, first direction is inserted
A main hydraulic fluid port of valve 25 and second direction inserted valve 26 is filled with oil inlet oil circuit connection, and first direction inserted valve 25 is another
A main hydraulic fluid port is connected on a main hydraulic fluid port of first pressure inserted valve 24, another main hydraulic fluid port of second pressure inserted valve 27 connects
It connects on a main hydraulic fluid port of second pressure inserted valve 27.It is worth noting that security control oil circuit 3 and the second solenoid directional control valve
22 and 23 connection of third solenoid directional control valve.
For further, mechanism 4 is a third direction inserted valve, control mouth and the second solenoid directional control valve 22 at a slow speed for die sinking
And by 28 connection of the first shuttle valve between third solenoid directional control valve 23, wherein a main hydraulic fluid port and second direction inserted valve 26
Logical, another main hydraulic fluid port connection is into fuel tank 1.
For further, security control oil circuit 3 includes sequentially connected first overflow check valve 31, pressure gauge 32 and stores
Can device 33, wherein one end of the first overflow check valve 31 also with 1 connection of fuel tank.In addition to this, in accumulator 33 and the second electromagnetism
It is provided with the first check valve 34 between reversal valve 22, second one-way valve 35 is provided between accumulator 33 and oil inlet oil circuit.
For further, motor 5 is provided on oil inlet oil circuit, the hydraulic oil in fuel tank 1 is transported to injection
Oil circuit.
For further, cooler 6 is provided between third solenoid directional control valve 23 and fuel tank 1.Because through oil circulation
Hydraulic fluid temperature afterwards is very high, if directly returning to oil circuit will cause whole high oil temperature, is unfavorable for subsequent work.So
It is provided with cooler 6, to be cooled down before hydraulic oil returns to fuel tank 1, to guarantee that 1 oil temperature of fuel tank is unlikely to excessively high and causes
Influence to the work of entire oil circuit.
For further, the second overflow check valve 7 is provided between oil return circuit and cooler 6, to prevent two to go out
Phenomena such as now flowing back.
For further, in security control oil circuit 3 also with a safety valve connection, the hydraulic oil through safety valve is again through the second shuttle
Valve 42, the control mouth of connection to second direction inserted valve 26 all the way, another way be respectively connected to the second solenoid directional control valve 22 and
The control mouth of second pressure inserted valve 27.Because in practical applications, which is for controlling safety door, if safety
Door is not turned off, then security control oil circuit 3 prevents second party by control mouth pressure testing of the safety valve to second direction inserted valve 26
To inserted valve 26 carry out mould assembling action, guarantee the safety of adapted to injection system with this, prevent people in injection molding machine when start suddenly
Molding, causes safe accident.
By above-mentioned injection molding machine open mold safety control system, structure is simple, and is open mold using security control oil circuit 3
Realize that oil circuit provides a normal switching-off pressure, to guarantee that entire oil circuit operates normally.Except before this, the setting of safety valve is improved
Safety in clamping process.
For a person skilled in the art, after reading above description, various changes and modifications undoubtedly be will be evident.
Therefore, appended claims should regard the whole variations and modifications for covering true intention and range of the invention as.It is weighing
The range and content of any and all equivalences, are all considered as still belonging to the intent and scope of the invention within the scope of sharp claim.
Claims (2)
1. injection molding machine open mold safety control system, which is characterized in that the system comprises:
Fuel tank (1), to store hydraulic oil；
Oil inlet oil circuit, with the fuel tank (1) connection and for conveying hydraulic oil；
Open mold oil circuit (2), with the oil inlet oil circuit connection and for controlling open mold movement；
Security control oil circuit (3) is connected with the fuel tank (1) and the open mold oil circuit (2), to for the open mold
The part that work is not needed in oil circuit (2) provides the pressure of a normal switching-off, to guarantee the normal operation of whole system；
Die sinking mechanism (4) at a slow speed, and the security control oil circuit (3) and the open mold oil circuit (2) connection, to reduce out
Mould speed；
Oil return circuit is arranged between the open mold oil circuit (2) and the fuel tank (1), to will be through the folding moulding oil
Hydraulic oil in road (2) after circulation is back in the fuel tank (1)；
The open mold oil circuit (2) includes:
Pilot control mechanism is connected with the security control oil circuit (3), to control the security control oil circuit (3) to institute
It states in open mold oil circuit (2) not working portion and one normal switching-off pressure is provided, is i.e. pilot control acts on；
Open mold realizes oil circuit, with the oil inlet oil circuit and pilot control mechanism connection；
Hydraulic cylinder (20) realizes that oil circuit connection, the open mold realize that hydraulic oil drives the liquid in oil circuit with the open mold
The movement of piston in cylinder pressure (20), and then realize die sinking or mould assembling action；
The pilot control mechanism includes the first solenoid directional control valve (21), the second solenoid directional control valve (22) and third solenoid directional control valve
(23)；The open mold oil circuit (2) includes die sinking unit and closing unit, and the die sinking unit includes first pressure inserted valve
(24) and first direction inserted valve (25), the closing unit include second direction inserted valve (26) and second pressure inserted valve
(27)；Wherein, first solenoid directional control valve (21) is connected to the control mouth of the first pressure inserted valve (24) by pipeline,
Second solenoid directional control valve (22) is connected to second pressure described in second direction inserted valve (26) level-one by pipeline and inserts
The control mouth of valve (27) is filled, the third solenoid directional control valve (23) is connected to the first direction inserted valve (25) by pipeline
Control mouth；One main hydraulic fluid port of the first direction inserted valve (25) and the second direction inserted valve (26) with oil inlet oil circuit
Connection, another main hydraulic fluid port of the first direction inserted valve (25) are connected to a master of the first pressure inserted valve (24)
On hydraulic fluid port, another main hydraulic fluid port of the second pressure inserted valve (27) is connected to one of the second pressure inserted valve (27)
On main hydraulic fluid port；
Cooler (6) are provided between the third solenoid directional control valve (23) and fuel tank (1), in the oil return circuit and described
The second overflow check valve (7) is provided between cooler (6)；
The security control oil circuit (3) includes sequentially connected first overflow check valve (31), pressure gauge (32) and accumulator
(33), wherein the first overflow check valve (31) also with fuel tank (1) connection；
For the security control oil circuit (3) also with a safety valve connection, the safety valve is described also with one second shuttle valve (42) connection
Control mouth of the connection of oil circuit all the way of second shuttle valve (42) to the second direction inserted valve (26), another way oil circuit difference connection
To second solenoid directional control valve (22) and the control mouth of the second pressure inserted valve (27).
2. injection molding machine open mold safety control system according to claim 1, which is characterized in that described to be opened mechanism at a slow speed
It (4) is a third direction inserted valve (41), control mouth is changed with second solenoid directional control valve (22) and the third electromagnetism
To between valve (23) by the first shuttle valve (28) connection, a main hydraulic fluid port and second direction inserted valve (26) connection, Ling Yizhu
Hydraulic fluid port connection is into the fuel tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040758.3A CN106313460B (en) | 2016-11-21 | 2016-11-21 | Injection molding machine open mold safety control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040758.3A CN106313460B (en) | 2016-11-21 | 2016-11-21 | Injection molding machine open mold safety control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106313460A CN106313460A (en) | 2017-01-11 |
| CN106313460B true CN106313460B (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611040758.3A Active CN106313460B (en) | 2016-11-21 | 2016-11-21 | Injection molding machine open mold safety control system |
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| CN (1) | CN106313460B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819179A (en) * | 2018-08-02 | 2018-11-16 | 海天塑机集团有限公司 | A kind of vertical injection blow molding machine open mold oil circuit of external control |
| WO2021031436A1 (en) * | 2019-08-21 | 2021-02-25 | 华澳轮胎设备科技（苏州）股份有限公司 | Differential control mold opening and closing control loop of vulcanizing machine and mold opening and closing control method |
| CN111559058B (en) * | 2020-05-20 | 2022-03-25 | 宁波华美达机械制造有限公司 | Safety die assembly oil way system of cartridge valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203822722U (en) * | 2014-05-22 | 2014-09-10 | 宁波海太工贸有限公司 | Leader control oilway pressure stabilizing system for servo-driven injection moulding machine |
| CN205572952U (en) * | 2016-04-29 | 2016-09-14 | 宁波海天华远机械有限公司 | A hydraulic circuit that is used for system security controls of large -scale injection molding machine compound die |
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| CN106313460A (en) | 2017-01-11 |
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