CN220742039U - Injection molding machine mode locking pressurization system - Google Patents
Injection molding machine mode locking pressurization system Download PDFInfo
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- CN220742039U CN220742039U CN202322454594.0U CN202322454594U CN220742039U CN 220742039 U CN220742039 U CN 220742039U CN 202322454594 U CN202322454594 U CN 202322454594U CN 220742039 U CN220742039 U CN 220742039U
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- reversing valve
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 19
- 230000009471 action Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
A mold locking pressurizing system of an injection molding machine. The problem of current mode locking system need accomplish the pressure boost with big hydro-cylinder, the energy consumption is big is solved. The novel hydraulic cylinder comprises an oil inlet, an oil return port, a first reversing valve and a mode locking oil cylinder, wherein the mode locking oil cylinder comprises a mode locking rod cavity and a mode locking rod-free cavity, the first reversing valve is provided with a first position, a middle position and a third position, the first position is used for enabling the oil inlet to be connected with the mode locking rod-free cavity, the second position is used for enabling the oil inlet to be connected with the mode locking rod cavity, the novel hydraulic cylinder further comprises a pressurizing oil cylinder and a second reversing valve, the pressurizing oil cylinder comprises a first cavity and a second cavity, the first cavity of the pressurizing oil cylinder is connected to a pipeline between the oil inlet and the first reversing valve, and the oil inlet is connected with the second cavity of the pressurizing oil cylinder through the second reversing valve and used for driving the pressurizing oil cylinder to act for pressurizing. The utility model has the beneficial effects that the pressurizing oil cylinder is arranged, when the mold locking oil cylinder moves in place and needs pressurizing, the pressurizing oil cylinder is used for pressurizing, so that the energy consumption is saved, and the processing efficiency is high.
Description
Technical Field
The utility model relates to an injection molding machine, in particular to a mold locking pressurizing system of the injection molding machine.
Background
In order to improve the operation speed of the mold opening and locking process of the machine under the condition that the cylinder diameter of the mold locking cylinder is unchanged, the mold locking thrust part of the injection molding machine on the market adopts a double-crankshaft type mechanism or an oil cylinder type structure, and can only increase the displacement of a pump (the operation speed of an unlocking mold is improved by only increasing milliliters of the pump when the system pressure is not reduced, but the consumption power is larger, the energy consumption is larger, and the oil temperature is also increased along with the pump pressure).
Disclosure of Invention
In order to solve the problem that the prior mold locking system in the background technology needs a large oil cylinder to complete pressurization and has high energy consumption, the utility model provides a mold locking pressurization system of an injection molding machine.
The technical scheme of the utility model is as follows: the utility model provides an injection molding machine mode locking pressurization system, includes oil inlet, oil return opening, first switching-over valve and mode locking hydro-cylinder, the mode locking hydro-cylinder include mode locking have pole chamber and mode locking rodless chamber, the oil inlet link to each other with the mode locking hydro-cylinder through first switching-over valve, first switching-over valve have the first position that makes oil inlet and mode locking rodless chamber link to each other, the second position of middle position and the third position that makes oil inlet and mode locking have pole chamber to link to each other, still include booster cylinder and second switching-over valve, the booster cylinder include first chamber and second chamber, the first chamber of booster cylinder link to each other on the pipeline between oil inlet and first switching-over valve, the oil inlet link to each other and be used for driving booster cylinder action pressure boost through the second chamber of second switching-over valve and booster cylinder.
As a further development of the utility model, the second reversing valve has a first position when installed and a second position in which the oil inlet communicates with the second chamber of the charging cylinder.
As a further improvement of the utility model, the mold locking cylinder has a first state for closing the mold when the first direction valve is in the first position and a second state for pressurizing and locking the mold when the first direction valve is in the first position, and the mold locking cylinder is in the pressurizing and locking second state when the second direction valve is in the second position.
As a further improvement of the utility model, the second reversing valve is a two-position four-way reversing valve.
As a further improvement of the utility model, the first reversing valve is a three-position four-way reversing valve.
As a further improvement of the utility model, the first reversing valve and the second reversing valve are electromagnetic reversing valves.
As a further improvement of the utility model, a sensor is arranged between the first reversing valve and the mode locking cylinder, and the sensor is connected with the booster cylinder and used for controlling the booster cylinder.
As a further improvement of the utility model, a first one-way valve is arranged between the oil inlet and the first reversing valve, and the first cavity of the booster cylinder is connected with the oil outlet of the first one-way valve.
As a further improvement of the utility model, a second one-way valve is arranged between the oil inlet and the second reversing valve.
The utility model has the beneficial effects that the pressurizing oil cylinder is arranged, when the mold locking oil cylinder moves in place and needs pressurizing, the pressurizing oil cylinder is used for pressurizing, so that the energy consumption is saved, and the processing efficiency is high. The utility model also has the advantages of simple structure, reliable action, long service life and the like.
Drawings
Fig. 1 is a schematic diagram of the hydraulic principle of an embodiment of the present utility model.
Fig. 2 is a schematic diagram of the hydraulic principle of the first reversing valve in the first state of the first position for clamping the clamping cylinder according to the embodiment of the present utility model.
Fig. 3 is a schematic diagram of the hydraulic principle of the first reversing valve according to the embodiment of the present utility model in the second state where the first reversing valve is in the first position for pressurizing and locking.
Fig. 4 is a schematic diagram of a hydraulic principle of pressure release before die opening according to an embodiment of the utility model.
Fig. 5 is a schematic diagram of a hydraulic principle of an opening stage of the first reversing valve in the third position according to the embodiment of the present utility model.
Fig. 6 is a schematic structural diagram of an embodiment of the present utility model.
In the figure, 1, a first reversing valve; 2. a mode locking oil cylinder; 21. the mode is locked and provided with a rod cavity; 22. a mold locking rodless cavity; 3. a booster cylinder; 31. a first chamber; 32. a second chamber; 4. a second reversing valve; 5. a sensor; 6. a first one-way valve; 7. a second one-way valve; p, an oil inlet; t, an oil return port.
Detailed Description
Embodiments of the utility model are further described below with reference to the accompanying drawings:
the injection molding machine mold locking pressurizing system comprises an oil inlet P, an oil return port T, a first reversing valve 1 and a mold locking oil cylinder 2, wherein the mold locking oil cylinder 2 comprises a mold locking rod cavity 21 and a mold locking rodless cavity 22, and is characterized in that the oil inlet P is connected with the mold locking oil cylinder 2 through the first reversing valve 1, the first reversing valve 1 is provided with a first position for connecting the oil inlet P with the mold locking rodless cavity 22, a second position in the middle position and a third position for connecting the oil inlet P with the mold locking rod cavity 21, the pressurizing oil cylinder 3 and the second reversing valve 4 are further included, the pressurizing oil cylinder 3 comprises a first cavity 31 and a second cavity 32, the first cavity 31 of the pressurizing oil cylinder 3 is connected to a pipeline between the oil inlet P and the first reversing valve 1, and the oil inlet P is connected with the second cavity 32 of the pressurizing oil cylinder 3 through the second reversing valve 4 and is used for driving the pressurizing oil cylinder 3 to conduct pressurizing. Specifically, the second reversing valve 4 is a two-position four-way reversing valve. Specifically, the first reversing valve 1 is a three-position four-way reversing valve. More specifically, the first reversing valve 1 and the second reversing valve 4 are electromagnetic reversing valves. The utility model has the beneficial effects that the pressurizing oil cylinder is arranged, when the mold locking oil cylinder moves in place and needs pressurizing, the pressurizing oil cylinder is used for pressurizing, so that the energy consumption is saved, and the processing efficiency is high. The utility model also has the advantages of simple structure, reliable action, long service life and the like. The working principle of the product is further described with reference to the accompanying drawings: referring to fig. 2, when power is supplied to the die Y2, the pressure oil enters the die-locking rodless cavity of the die-locking cylinder through the first one-way valve and the first reversing valve to push the cylinder to move forward rapidly, and before reaching the high-pressure die-locking stage, the die is in a bonding state, at this time, the stroke position of the piston of the pressurizing cylinder is at the bottommost part of the lower cavity of the cylinder, and the die-locking cylinder is in the first state. Referring to fig. 3, when the mode locking action enters a high-pressure stage, the second reversing valve is in a working state, oil enters a lower cavity (second cavity) of the booster cylinder through the second reversing valve under the condition that the pressure is unchanged, a piston and a piston rod of the booster cylinder move upwards along with the increase of the system pressure, a rodless cavity outputs high-pressure with an area ratio, p2=p (S2/S1), wherein P2 is the output pressure of the first cavity, P is the pressure of an oil inlet, S1 is the area of the first cavity, S2 is the area of the second cavity, and when the mode locking high-pressure reaches the required locking, the sensor feedback signal stops boosting. The high pressure enables the mold locking oil cylinder to push the mold to be firmly locked, and the moving distance of the oil cylinder in the high pressure stage is short, so that the use of the pressurizing oil cylinder overcomes the high pressure required by mold locking, moves for a short distance, greatly improves the time of opening and closing the mold of the machine, reduces the size of the mold locking oil cylinder, and reduces the system pressure required by opening and closing the mold in the quick stage, namely, when the mold locking oil cylinder is in the second state. Referring to fig. 4, after the high pressure of the mold locking is finished, Y2 is powered on, Y3 is powered off, the pressure of the mold locking rodless cavity of the mold locking oil cylinder is relieved, the piston of the pressurizing oil cylinder moves downwards to drain oil in the second cavity, and the mold opening action Y1 is waited to be powered on. The utility model can use smaller oil pump than original to achieve the same or better effect, with energy saving, high efficiency, small volume, long service life and low cost. The reduction of the outer diameter of the oil cylinder is beneficial to the space layout of the whole assembly machine, and the assembly is simplified; the mold opening and locking can be performed quickly, so that the service efficiency is improved; the inner diameter size of the mold locking oil cylinder is reduced, so that the moving speed of the oil cylinder is improved; the service life of the product is prolonged; in the former stages of high-pressure mode locking, in order to improve efficiency, the mode locking cylinder moves fast, when reaching the high-pressure mode locking stage, the required high-pressure result is achieved by pressurizing the pressurizing cylinder, the moving distance of the high-pressure mode locking stage is small, the high-pressure mode locking requirement can be met only by meeting high-pressure and small flow, the service life of an oil pump is prolonged, and the working efficiency of a machine is improved.
The second reversing valve 4 has a first position when installed and a second position in which the oil inlet P communicates with the second chamber 32 of the booster cylinder. Specifically, the mold locking cylinder 2 has a first state for clamping when the first reversing valve 1 is in the first position and a second state for pressurizing and locking when the first reversing valve 1 is in the first position, and the mold locking cylinder 2 is in the pressurizing and locking second state when the second reversing valve 4 is in the second position. Through the switching of the second reversing valve, the pressurizing oil cylinder can be controlled to move, the structure is simple, the control is convenient, the oil pressure during the mode locking is increased in the prior weather without increasing the area of the mode locking oil cylinder, and the product action is convenient.
A sensor 5 is arranged between the first reversing valve 1 and the mode locking cylinder 2, and the sensor 5 is connected with the booster cylinder 3 and is used for controlling the booster cylinder 3. The sensor can control the action of the booster cylinder according to the set pressure, and has simple structure and convenient and reliable control.
A first one-way valve 6 is arranged between the oil inlet P and the first reversing valve 1, and a first cavity 31 of the booster cylinder is connected with an oil outlet of the first one-way valve 6. Specifically, a second one-way valve 7 is arranged between the oil inlet P and the second reversing valve 4. Such a structure makes the product safer.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The skilled person will know: while the utility model has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the utility model, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (9)
1. The injection molding machine mold locking pressurization system comprises an oil inlet (P), an oil return port (T), a first reversing valve (1) and a mold locking oil cylinder (2), wherein the mold locking oil cylinder (2) comprises a mold locking rod cavity (21) and a mold locking rodless cavity (22), and is characterized in that the oil inlet (P) is connected with the mold locking oil cylinder (2) through the first reversing valve (1), the first reversing valve (1) is provided with a first position, a second position and a third position, wherein the first position is used for enabling the oil inlet (P) to be connected with the mold locking rodless cavity (22), the third position is used for enabling the oil inlet (P) to be connected with the mold locking rod cavity (21), the injection molding machine mold locking pressurization system further comprises a pressurization oil cylinder (3) and a second reversing valve (4), the pressurization oil cylinder (3) comprises a first cavity (31) and a second cavity (32), the first cavity (31) of the pressurization oil cylinder (3) is connected to a pipeline between the oil inlet (P) and the first reversing valve (1), and the pressurization oil cylinder (P) is connected with the second pressurization oil cylinder (3) through the second reversing valve (4) to be used for pressurizing the pressurization action of the pressurization oil cylinder (32).
2. An injection molding machine mold locking pressurization system according to claim 1, characterized in that said second reversing valve (4) has a first position when installed and a second position wherein said oil inlet (P) is in communication with said second chamber (32) of said pressurization cylinder.
3. The injection molding machine mold locking pressurization system according to claim 2, wherein the mold locking cylinder (2) has a first state for clamping when the first reversing valve (1) is in the first position and a second state for pressurizing and locking when the first reversing valve (1) is in the first position, and the mold locking cylinder (2) is in the pressurizing and locking second state when the second reversing valve (4) is in the second position.
4. The injection molding machine mold locking pressurization system according to claim 1, wherein the second reversing valve (4) is a two-position four-way reversing valve.
5. The injection molding machine mold locking pressurization system according to claim 1, wherein the first reversing valve (1) is a three-position four-way reversing valve.
6. The injection molding machine mode locking pressurization system according to claim 1, wherein the first reversing valve (1) and the second reversing valve (4) are electromagnetic reversing valves.
7. The injection molding machine mold locking pressurization system according to claim 1, wherein a sensor (5) is arranged between the first reversing valve (1) and the mold locking oil cylinder (2), and the sensor (5) is connected with the pressurization oil cylinder (3) and is used for controlling the pressurization oil cylinder (3).
8. The injection molding machine mold locking pressurization system according to claim 1, wherein a first one-way valve (6) is arranged between the oil inlet (P) and the first reversing valve (1), and the first cavity (31) of the pressurization oil cylinder is connected with the oil outlet of the first one-way valve (6).
9. The injection molding machine mold locking pressurization system according to claim 1, wherein a second one-way valve (7) is arranged between the oil inlet (P) and the second reversing valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322454594.0U CN220742039U (en) | 2023-09-11 | 2023-09-11 | Injection molding machine mode locking pressurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322454594.0U CN220742039U (en) | 2023-09-11 | 2023-09-11 | Injection molding machine mode locking pressurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220742039U true CN220742039U (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322454594.0U Active CN220742039U (en) | 2023-09-11 | 2023-09-11 | Injection molding machine mode locking pressurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220742039U (en) |
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2023
- 2023-09-11 CN CN202322454594.0U patent/CN220742039U/en active Active
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