CN216139366U - Mold opening control oil path of injection molding machine - Google Patents
Mold opening control oil path of injection molding machine Download PDFInfo
- Publication number
- CN216139366U CN216139366U CN202121770253.9U CN202121770253U CN216139366U CN 216139366 U CN216139366 U CN 216139366U CN 202121770253 U CN202121770253 U CN 202121770253U CN 216139366 U CN216139366 U CN 216139366U
- Authority
- CN
- China
- Prior art keywords
- oil
- mold opening
- opening control
- valve
- circuit
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a mold opening control oil circuit of an injection molding machine, which comprises a mold opening cylinder, an oil tank, a mold opening control valve, a proportional direction valve and a safety valve, wherein the oil circuit has an electric and hydraulic double safety protection function on mold locking action through the safety valve; meanwhile, the hydraulic oil cylinder has a slow die opening function, and the design of the damping hole enables an oil path to form die opening backpressure, so that the pressure impact of high-pressure die opening is effectively improved; the loop design of the one-way valve meets the requirement that semi-automatic production can be normally carried out when the safety door is opened. In the semi-automatic production, after the mold locking action is finished, an operator can open the safety door to take out the product.
Description
Technical Field
The utility model relates to the technical field of injection molding machines, in particular to a mold opening control oil path of an injection molding machine.
Background
The injection molding machine utilizes the hydraulic cylinder as power when the compound die, and the motion of compound die hydro-cylinder is injectd to clamping mechanism when the emergency exit of injection molding machine is opened to ensure operator's personal safety, current clamping mechanism maloperation or solenoid directional valve action failure all can cause the threat to operator's personal safety, have very big potential safety hazard, the security performance is poor.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. The mold opening control oil path of the injection molding machine comprises a mold opening cylinder and an oil tank, wherein a rod cavity of the mold opening cylinder is connected with a first oil path, a rodless cavity of the mold opening cylinder is connected with a second oil path, the mold opening control oil path further comprises a mold opening control valve, a proportional direction valve and a safety valve, the mold opening control valve is communicated with the oil tank through an oil inlet path, the mold opening control valve is connected with the first oil path, the mold opening control valve is connected with the proportional direction valve through a third oil path, an oil return path is arranged on the proportional direction valve, the proportional direction valve is connected with the second oil path through a differential branch oil path, and the safety valve is connected before the differential branch oil path is connected with the second oil path.
According to some embodiments of the utility model, the differential branch is provided with a check valve.
According to some embodiments of the utility model, the third oil passage communicates with the oil return passage through a branch oil passage, and the branch oil passage is provided with a damping hole.
According to some embodiments of the utility model, the oil inlet line is equipped with a gear pump, a servo motor and a pressure sensor.
According to some embodiments of the utility model, the oil inlet line is fitted with a filter.
According to some embodiments of the utility model, the tank contains a level gauge.
The utility model has at least the following beneficial effects:
1. the oil circuit is provided with a hydraulic safety valve, and has an electric and hydraulic dual safety protection function for the mold locking action.
2. The slow die opening function and the design of the damping holes enable the oil path to form die opening backpressure, and effectively improve the pressure impact of high-pressure die opening.
3. The loop design of the one-way valve meets the requirement that semi-automatic production can be normally carried out when the safety door is opened. In the semi-automatic production, after the mold locking action is finished, an operator can open the safety door to take out the product.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an overall schematic diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1, the mold opening control oil path of the injection molding machine comprises a mold opening cylinder 100 and an oil tank 200, wherein a rod cavity of the mold opening cylinder 100 is connected with a first oil path 101, a rodless cavity of the mold opening cylinder 100 is connected with a second oil path 102, the mold opening control oil path further comprises a mold opening control valve 300, a proportional direction valve 400 and a safety valve 500, the mold opening control valve 300 is communicated with the oil tank 200 through an oil inlet path 600, the first oil path 101 of the mold opening control valve 300 is connected, the mold opening control valve 300 is connected with the proportional direction valve 400 through a third oil path 700, an oil return path 800 is arranged on the proportional direction valve 400, the proportional direction valve 400 is connected with the second oil path 102 through a differential branch oil path 900, and the safety valve 500 is connected before the differential branch oil path 900 is connected with the second oil path 102.
The differential branch oil path 900 is provided with a one-way valve 910; the third oil path 700 is communicated with the oil return path 800 through a branch oil path 710, and a damping hole 711 is arranged on the branch oil path 710; the oil inlet 600 is provided with a gear pump 610, a servo motor 620 and a pressure sensor 630; the oil inlet path 600 is provided with a filter 640; the tank 200 houses a level gauge 210.
The safety valve 500 is provided with a valve core position detection function, a power supply signal is controlled by a travel switch of the movable safety door, after the safety door is opened, an electromagnet YA30 signal of the safety valve 500 is cut off, and the safety valve 500 is in a closed state.
1. And (3) locking the mold: when the safety door is closed, and YA3, YA30 and YA21 are simultaneously electrified, the B, T port of the mold opening control valve 300 is communicated, and the A, T port of the proportional directional valve 400 can perform the mode locking action; when the safety door is opened, the YA30 signal is cut off, and the mode locking operation cannot be performed.
2. And (3) very fast mode locking action: when the safety door is closed and YA3, YA30 and YA10 are simultaneously electrified, the B, T port of the mold opening control valve 300 is connected with the A, P port of the proportional directional valve 400 and enters the differential branch oil path 900, and the rapid mold locking action can be performed. When the safety door is opened, the YA30 signal is cut off, and the quick mode locking operation cannot be performed.
3. Slow die opening action: when the safety door is closed and YA9 and YA30 are powered on simultaneously, the T port of the mold opening control valve 300 passes through the damping hole D1 and can perform slow mold opening action; when the safety door is opened, the YA30 signal is cut off, the oil passes through the one-way valve 910, and the opening operation can be normally carried out.
4. And (3) quick die opening action: when the safety door is closed and YA9, YA30 and YA21 are powered on simultaneously, B, T of the mold opening control valve 300 is communicated with A, T of the proportional directional valve 400, and rapid mold opening can be carried out; when the safety door is opened, the YA30 signal is cut off, and the oil passes through the one-way valve 910, so that the rapid die opening action can be normally carried out.
The oil circuit has an electric and hydraulic dual safety protection function for the mold locking action through a safety valve 500; meanwhile, the hydraulic oil cylinder has a slow die opening function, and the design of the damping hole D1 enables an oil path to form die opening backpressure, so that the pressure impact of high-pressure die opening is effectively improved; the loop design of the check valve 910 meets the requirement that semi-automatic production can be normally carried out when the safety door is opened. In the semi-automatic production, after the mold locking action is finished, an operator can open the safety door to take out the product.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (6)
1. A mold opening control oil circuit of an injection molding machine comprises a mold opening cylinder (100) and an oil tank (200), a first oil way (101) is connected with a rod cavity of the mold opening cylinder (100), a second oil way (102) is connected with a rodless cavity of the mold opening cylinder (100), it is characterized by also comprising a mold opening control valve (300), a proportional direction valve (400) and a safety valve (500), the mold opening control valve (300) is communicated with the oil tank (200) through an oil inlet path (600), the mold opening control valve (300) is connected with the first oil path (101), the mold opening control valve (300) is connected with the proportional direction valve (400) through a third oil path (700), the proportional direction valve (400) is provided with an oil return path (800), the proportional direction valve (400) is connected with the second oil path (102) through a differential branch oil path (900), the differential branch oil path (900) is connected with the safety valve (500) before being connected with the second oil path (102).
2. The mold opening control circuit of an injection molding machine according to claim 1, wherein a check valve (910) is attached to said differential branch circuit (900).
3. The mold opening control oil circuit of an injection molding machine according to claim 1, wherein the third oil circuit (700) is communicated with the oil return circuit (800) through a branch oil circuit (710), and a damping hole (D1) is installed on the branch oil circuit (710).
4. The mold opening control oil circuit of an injection molding machine according to the claim, wherein a gear pump (610), a servo motor (620) and a pressure sensor (630) are installed on the oil inlet circuit (600).
5. The die opening control oil circuit of an injection molding machine according to claim, wherein a filter (640) is mounted on the oil feed circuit (600).
6. The mold opening control circuit of an injection molding machine according to claim, wherein a liquid level gauge (210) is installed in the oil tank (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121770253.9U CN216139366U (en) | 2021-07-30 | 2021-07-30 | Mold opening control oil path of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121770253.9U CN216139366U (en) | 2021-07-30 | 2021-07-30 | Mold opening control oil path of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216139366U true CN216139366U (en) | 2022-03-29 |
Family
ID=80803445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121770253.9U Active CN216139366U (en) | 2021-07-30 | 2021-07-30 | Mold opening control oil path of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216139366U (en) |
-
2021
- 2021-07-30 CN CN202121770253.9U patent/CN216139366U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110757751B (en) | Oil circuit system of direct and fast clamping mechanism of two-plate injection molding machine for spring mold | |
| CN208052516U (en) | A kind of two trigger mode locking control systems | |
| CN216139366U (en) | Mold opening control oil path of injection molding machine | |
| CN105728694A (en) | Quick die opening device of die-casting machine | |
| CN215719903U (en) | Mode locking control oil way of injection molding machine | |
| CN107472014A (en) | Automobile accelerator mistake-stepping prevention device | |
| JP3878540B2 (en) | Die casting machine | |
| CN113771320A (en) | Differential mode locking pressure relief oil way for two-plate injection molding machine | |
| CN208324111U (en) | A kind of injection moulding machine mode-locking oil circuit safety control system | |
| CN219727102U (en) | Mode locking hydraulic pressure safety lock device | |
| CN111941787A (en) | Injection molding machine mold opening oil piping system and injection molding machine | |
| CN204140522U (en) | A kind of hydraulic press pressurization system | |
| CN209180136U (en) | A kind of relay in injection moulding machine mode-locking circuit and hydraulic valve composite safe control system | |
| CN203713013U (en) | Mold-opening assisting device of injection molding machine | |
| CN207328144U (en) | Automobile accelerator mistake-stepping prevention device | |
| CN215472923U (en) | Pneumatic mechanical lock control system of injection molding machine | |
| CN111559058B (en) | Safety die assembly oil way system of cartridge valve | |
| CN220946528U (en) | Pressure relief device of mold locking oil cylinder and injection molding machine | |
| CN203888163U (en) | Mould locking oil path | |
| CN215242703U (en) | Hydraulic control loop for realizing position holding of injection molding machine screw | |
| CN216306358U (en) | Hydraulic control system | |
| CN111941771B (en) | Large two-plate machine mode locking oil cylinder control system and control method | |
| CN212498842U (en) | Injection molding machine mold opening oil piping system and injection molding machine | |
| CN219324749U (en) | Oil way of thimble and core-pulling oil cylinder and die casting machine | |
| CN212636485U (en) | Mold opening and closing oil path control system of injection molding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Injection molding machine opening control oil circuit Effective date of registration: 20230609 Granted publication date: 20220329 Pledgee: Agricultural Bank of China Limited Shunde Beijiao sub branch Pledgor: Guangdong Youzhu Precision Machinery Co.,Ltd. Registration number: Y2023980043427 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |