CN208565142U - A kind of injection molding machine open mold control oil circuit - Google Patents
A kind of injection molding machine open mold control oil circuit Download PDFInfo
- Publication number
- CN208565142U CN208565142U CN201820811403.8U CN201820811403U CN208565142U CN 208565142 U CN208565142 U CN 208565142U CN 201820811403 U CN201820811403 U CN 201820811403U CN 208565142 U CN208565142 U CN 208565142U
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- China
- Prior art keywords
- oil circuit
- valve
- oil
- negative pressure
- injection molding
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 27
- 238000000465 moulding Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 71
- 238000012423 maintenance Methods 0.000 description 4
- 210000000664 rectum Anatomy 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of injection molding machine open molds to control oil circuit, including direction valve, relief valve, check valve, negative pressure valve, shutoff valve, piston oil-cylinder, first oil circuit, second oil circuit, third oil circuit, 4th oil circuit and the 5th oil circuit, the check valve is arranged on third oil circuit and is connect by third oil circuit with direction valve one end, the relief valve and negative pressure valve are arranged on the 4th oil circuit and are connect by the 4th oil circuit with the direction valve other end, wherein, the negative pressure valve is arranged below direction valve, the shutoff valve is arranged below negative pressure valve by the 5th oil circuit, the piston oil-cylinder by the first oil circuit and the second oil circuit respectively with the 4th oil circuit and third oil circuit connection, it passes through check valve, the setting of negative pressure valve and shutoff valve, make entire open mold oil circuit more steady, also the control that greater flow is done with smaller valve has been accomplished, Faster, performance is more preferable, and controllability is higher, reduces production cost for response.
Description
Technical field
The utility model relates to injection molding machine oil returns to control oil circuit technical field, and in particular to a kind of injection molding machine open mold control
Oil circuit.
Background technique
Conventional open mold oil circuit, being typically designed is to use direction valve (such as valves of 10 latus rectums) as action control, is come
Realize the piston motion of die sinking, molding.But conventional direction valve have the shortcomings that one it is fatal, be exactly P → A；B → T or P → B；
A→T.In the performance of valve design, the flow that can pass through under identical pressure difference is consistent (valve of 10 latus rectum of example, institute's energy
By maximum flow 120L.Can reality folding mould oil cylinder, due to the presence of piston rod, so that two parts that piston is separated
Sectional area is no longer equal, if when the flow of the system hydraulic oil of the machine has arrived at the maximum stream flow of fixed-direction valve (such as
120L, the maximum stream flow of 10 latus rectum valves).If 120L will be greater than from the flow of rod chamber oil inlet 120L so rodless cavity, from
And be directed at oil return and have some setbacks, generate resistance back pressure.In order to solve the problems, such as back pressure, then only a kind of mode, increases the latus rectum of valve
(a high serial valve is that is used instead, but a high serial valve leads to oil mass and can increase very much, to be directed at the controllable of valve
Degradation).And the availability of valve also reduces, the poor controllability of entire oil cylinder, open mold impact is big, and overshoot is big, no
The problems such as steady, all displays, and the change in location finally stopped is big, is unfavorable for manipulator taking-up, causes to take out failure.And
Waste money also increases the workload of worker while former.
Due to the increasing of valve body, so entire valve plate also has to increase, many materials are wasted.It is also a kind of resource
Waste.
Due to the increasing of valve body, so the response of valve is slack-off, the overshoot of oil circuit becomes larger, performance decline.
Since whole part is among movement, under the action of inertia, on and off institute of the conventional oil circuit design in valve
In the time needed.It will lead to the rod chamber in die sinking and draw into no-man's-land, and rodless cavity draws into back pressure, finally stops in whole part
After lower, the back pressure value for letting off She is also lost, so as to cause the reversed movement of this stopped component, not only causes whole equipment
Shake.It is also unsafe.
Utility model content
The problem to be solved by the utility model is to provide a kind of injection molding machine open molds to control oil circuit, allows entire open mold
Oil circuit is more steady, has also accomplished the control that greater flow is done with smaller valve, faster, performance is more preferable, controllability for response
It is higher, reduce production cost.
In order to achieve the above objectives, a kind of injection molding machine open mold control oil circuit provided by the utility model, including direction valve,
Relief valve, check valve, negative pressure valve, shutoff valve, piston oil-cylinder, the first oil circuit, the second oil circuit, third oil circuit, the 4th oil circuit and
Five oil circuits, the check valve are arranged on third oil circuit and are connect by third oil circuit with direction valve one end, the relief valve with
Negative pressure valve is arranged on the 4th oil circuit and is connect by the 4th oil circuit with the direction valve other end, wherein the negative pressure valve setting exists
Below direction valve, the shutoff valve is arranged below negative pressure valve by the 5th oil circuit, the piston oil-cylinder by the first oil circuit and
Second oil circuit respectively with the 4th oil circuit and third oil circuit connection.
Further, one end of the check valve connection third oil circuit and the 4th oil circuit connection, and the third oil circuit position at the end
In the top of negative pressure valve.
Further, be additionally provided on the 4th oil circuit molding electric protection valve, the molding electric protection valve be located at direction valve with
Between relief valve.
A kind of control method of injection molding machine open mold control oil circuit, includes the following steps:
Step 1: controlling injection molding machine by direction valve is in die opening state；
Step 2: relief valve is opened to most of stream in venting piston oil-cylinder when injection molding machine is in die opening state,
The back pressure generated to avoid direction valve through-current capacity insufficient, meanwhile, when injection molding machine is when being opened final position, relief valve
It closes in advance, rodless cavity is allowed to generate back pressure, and the component of movement is allowed timely to stop；
Step 3: the component in movement, after receiving stop signal, being closed due to relief valve needs reaction and movement
Time can be such that component overshoots in this way, so that rod chamber causes vacuum, the setting of check valve can allow the rodless cavity of overshoot
Oil one enters rod chamber, fills up drawn vacuum, so that it is made to become entity, it in this way can be to avoid the component to stop because there is back
The situation of rebound motion caused by pressure and vacuum occurs.
Further, negative pressure valve is additionally provided in the step, the setting of negative pressure valve may insure that rod chamber will not cause very
Sky, and then make rod chamber that vacuum state will not be presented under capable of cooperating with check valve.
Further, it is additionally provided with shutoff valve in the step, after oil return line blocks, the oil of rodless cavity will be because of pressure
The relationship of difference enters rodless cavity, to accelerate the speed of rodless cavity.
Compared with prior art, the technical solution of the utility model has the advantages that
1. a kind of injection molding machine open mold provided by the utility model controls oil circuit, above all ask not only can solve
Topic, and also declined in cost, in conjunction with the optimization of control formula, performance will have very high promotion, and can save makes
With the possibility of aspect ratio valve, cost is not only saved, decreases the cost of maintenance.It is not very professional people for one
Member also can be carried out maintenance and the lookup of problem.
2. a kind of injection molding machine open mold provided by the utility model controls oil circuit, by check valve, negative pressure valve and cut
The setting for flowing valve, makes entire open mold oil circuit more steady, has also accomplished the control for doing greater flow with smaller valve, rings
Should faster, performance is more preferable, and controllability is higher, reduces production cost.
3. the setting of molding electric protection valve can play the role of protection when injection molding machine is in molding.
Detailed description of the invention
Fig. 1 is the overall structure diagram that a kind of injection molding machine open mold of the utility model embodiment controls oil circuit.
In figure: direction valve 1, relief valve 2, check valve 3, negative pressure valve 4, shutoff valve 5, piston oil-cylinder 6, the first oil circuit 7, second
Oil circuit 8, third oil circuit 9, the 4th oil circuit 10, the 5th oil circuit 11, molding electric protection valve 12.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As shown in Figure 1, provided by the present embodiment in order to achieve the above objectives, provided by the utility model is to reach above-mentioned
Purpose, a kind of injection molding machine open mold provided by the utility model control oil circuit, including direction valve 1, relief valve 2, check valve 3,
Negative pressure valve 4, shutoff valve 5, piston oil-cylinder 6, the first oil circuit 7, the second oil circuit 8, third oil circuit 9, the 4th oil circuit 10 and the 5th oil circuit
11, the check valve 3 is arranged on third oil circuit 9 and is connect by third oil circuit 9 with 1 one end of direction valve, 2 He of relief valve
Negative pressure valve 4 is arranged on the 4th oil circuit 10 and is connect by the 4th oil circuit 10 with 1 other end of direction valve, wherein the negative pressure valve 4
It is arranged below direction valve 1, the shutoff valve 5 is arranged below negative pressure valve 4 by the 5th oil circuit 11, and the piston oil-cylinder 6 is logical
It crosses the first oil circuit 7 and the second oil circuit 8 is connect with the 4th oil circuit 10 and third oil circuit 9 respectively, the check valve 3 connects third oil circuit
9 one end is connect with the 4th oil circuit 10, and the third oil circuit 9 at the end is located at the top of negative pressure valve 4, goes back on the 4th oil circuit 10
Equipped with molding electric protection valve 12, the molding electric protection valve 12 is between direction valve 1 and relief valve 2.
A kind of injection molding machine open mold provided by the present embodiment controls oil circuit, not only can solve more than all problems,
And also declined in cost, in conjunction with the optimization of control formula, performance will have very high promotion, can the side of eliminating the need for
To the possibility of proportioning valve, cost is not only saved, decreases the cost of maintenance.It is not very professional personnel for one
It can be carried out maintenance and the lookup of problem, meanwhile, by the setting of check valve 3, negative pressure valve 4 and shutoff valve 5, allow entire folding
Moulding oil road is more steady, has also accomplished the control that greater flow is done with smaller valve, faster, performance is more preferable, controllably for response
Property it is higher, reduce production cost, every year can be whole if all employing the control of this open mold oil circuit in conventional injection molding
A injection molding machine saves many thousands of ten thousand cost, and the setting for molding electric protection valve can play protection when injection molding machine is in molding
Effect.
A kind of injection molding machine open mold control its specific control method of oil circuit provided by the present embodiment, including walk as follows
It is rapid:
Step 1: controlling injection molding machine by direction valve 1 is in die opening state；
Step 2: relief valve 2 is opened to the major part in venting piston oil-cylinder 6 when injection molding machine is in die opening state
Stream, thus the back pressure for avoiding 1 through-current capacity of direction valve insufficient and generating, meanwhile, when injection molding machine is when being opened final position, let out
Pressure valve 2 is closed in advance, and rodless cavity is allowed to generate back pressure, and the component of movement is allowed timely to stop；
Step 3: the component in movement, after receiving stop signal, being closed due to relief valve 2 needs reaction and movement
Time can be such that component overshoots in this way so that rod chamber causes vacuum, the setting of check valve 3 can allow overshoot without bar
Chamber oil one enters rod chamber, fills up drawn vacuum, so that it is made to become entity, it in this way can be to avoid the component to stop because having
The situation of rebound motion caused by back pressure and vacuum occurs；
Negative pressure valve 4 is additionally provided in the step 3, the setting of negative pressure valve 4 may insure that rod chamber will not cause vacuum, into
And make rod chamber that vacuum state will not be presented under capable of cooperating with check valve 3；
Shutoff valve 5 is additionally provided in the step 3, after oil return line blocks, the oil of rodless cavity will be because of pressure difference
Relationship enters rodless cavity, to accelerate the speed of rodless cavity.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (3)
1. a kind of injection molding machine open mold controls oil circuit, which is characterized in that including direction valve (1), relief valve (2), check valve (3),
Negative pressure valve (4), shutoff valve (5), piston oil-cylinder (6), the first oil circuit (7), the second oil circuit (8), third oil circuit (9), the 4th oil circuit
(10) it is arranged on third oil circuit (9) with the 5th oil circuit (11), the check valve (3) and passes through third oil circuit (9) and direction valve
(1) one end connects, the relief valve (2) and negative pressure valve (4) be arranged on the 4th oil circuit (10) and by the 4th oil circuit (10) and
Direction valve (1) other end connection, wherein below direction valve (1), the shutoff valve (5) passes through for the negative pressure valve (4) setting
Below negative pressure valve (4), the piston oil-cylinder (6) passes through the first oil circuit (7) and the second oil circuit (8) difference for five oil circuits (11) setting
It is connect with the 4th oil circuit (10) and third oil circuit (9).
2. a kind of injection molding machine open mold according to claim 1 controls oil circuit, which is characterized in that the check valve (3) is even
The one end for connecing third oil circuit (9) is connect with the 4th oil circuit (10), and the third oil circuit (9) at the end is located at the top of negative pressure valve (4).
3. a kind of injection molding machine open mold according to claim 1 controls oil circuit, which is characterized in that the 4th oil circuit (10)
On be additionally provided with molding electric protection valve (12), the molding electric protection valve (12) is located between direction valve (1) and relief valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820811403.8U CN208565142U (en) | 2018-05-29 | 2018-05-29 | A kind of injection molding machine open mold control oil circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820811403.8U CN208565142U (en) | 2018-05-29 | 2018-05-29 | A kind of injection molding machine open mold control oil circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565142U true CN208565142U (en) | 2019-03-01 |
Family
ID=65482583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820811403.8U Expired - Fee Related CN208565142U (en) | 2018-05-29 | 2018-05-29 | A kind of injection molding machine open mold control oil circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208565142U (en) |
-
2018
- 2018-05-29 CN CN201820811403.8U patent/CN208565142U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 |