CN216441624U - High vacuum die-casting vacuum machine system - Google Patents
High vacuum die-casting vacuum machine system Download PDFInfo
- Publication number
- CN216441624U CN216441624U CN202023220917.2U CN202023220917U CN216441624U CN 216441624 U CN216441624 U CN 216441624U CN 202023220917 U CN202023220917 U CN 202023220917U CN 216441624 U CN216441624 U CN 216441624U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- air valve
- vacuum pump
- branch
- tank
- 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
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model relates to the technical field of vacuum die casting, in particular to a high-vacuum die casting vacuum machine system. The vacuum pump, the rotary vane vacuum pump and the vacuum tank are sequentially connected, the pneumatic valve is arranged between the Roots vacuum pump and the vacuum tank, the dustproof rack is arranged outside the Roots vacuum pump, the rotary vane vacuum pump, the vacuum tank and the pneumatic valve, the controller is arranged at the upper left corner of the dustproof rack, and the vacuum pipe is connected with the vacuum tank. The utility model has the advantages that: the performance requirement is very obvious, the process of very many and very complicated castings and the air tightness requirement, compactness requirement, welding requirement and heat treatment requirement of products are changed, the problem that the casting production cannot be finished in the past is solved, and the guarantee is provided for the existing new energy automobiles, structural parts and 5G communication production.
Description
Technical Field
The utility model relates to the technical field of vacuum die casting, in particular to a high-vacuum die casting vacuum machine system.
Background
The existing high vacuum die casting vacuum machine mainly comprises a vacuum pump A1, a vacuum tank A2, an electromagnetic valve A3, a vacuum pipeline A4 and a sensor A5;
the molten metal contains partial hydrogen after being smelted, and the molten metal fills the whole die cavity in the flowing direction in the high-pressure die-casting process to form a whole product; the gas in the die cavity is passively discharged along with the pushing flow direction of the molten metal or the gas which is not completely discharged is scattered by the casting pressure of 700-900 bar, and the density of the product is improved as much as possible.
The following disadvantages exist in the prior art:
1. in the process of die-casting injection, a vacuum machine is utilized to pump out gas 0.5-1 second before molten metal reaches a die cavity, and the response time of the vacuum machine is very critical. If the response time of the vacuum machine is too slow, the effective vacuumizing action can not be finished within an extreme time, so that poor production is caused;
2. the existing vacuum machine is simple in structural design, the air pumping amount of a vacuum pump is small, multi-channel vacuum pumping cannot be met, excessive air is sucked when a mold leaks, and the vacuum pump cannot finish recovery within a long time, so that large batches of products are scrapped;
3. the existing vacuum machine is not provided with a dustproof frame, a vacuum pump and electrical elements are easily polluted, the failure rate is high, and the maintenance cost is high.
Disclosure of Invention
The utility model aims to provide a high-vacuum die-casting vacuum machine system to overcome the defects in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a high vacuum die-casting vacuum machine system which characterized in that: the vacuum pump, the rotary vane vacuum pump and the vacuum tank are sequentially connected, the pneumatic valve is arranged between the Roots vacuum pump and the vacuum tank, the dustproof rack is arranged outside the Roots vacuum pump, the rotary vane vacuum pump, the vacuum tank and the pneumatic valve, the controller is arranged at the upper left corner of the dustproof rack, the vacuum pipe is connected with the vacuum tank, the vacuum pipe is also connected with a plurality of branch pipes, the end part of each branch pipe is connected with a filter, the compressed air valve is connected with an air valve main pipe, the air valve main pipe is connected with a plurality of air valve branch pipes, the air valve branch pipes are directly communicated with the branch pipes in a one-to-one correspondence manner, pressure sensors are arranged on the air valve branch pipes, and the pneumatic valves are arranged on the branch pipes and the air valve branch pipes, and a vacuum pressure sensor is arranged between the branch pipe and the filter.
Preferably, the number of the branch pipes and the number of the air valve branch pipes are 6, each branch pipe is communicated with each air valve branch pipe one by one, one branch pipe is connected with a thimble vacuum box, one branch pipe is connected with a pressure chamber vacuum port of the injection rod, the remaining four branch pipes are respectively connected with a vacuum valve, and the vacuum valves are connected to the indoor bottom of the injection rod.
Preferably, the front end of the injection rod is provided with an injection head.
The utility model has the beneficial effects that:
1. compared with the prior art, the existing vacuum pump group is a single-stage rotary vane vacuum pump, the pressure of a vacuum tank caused by the leakage of a mould and a pipeline in the production process is excessively increased, the initial production condition is difficult to recover quickly, and the product is not continuous, unstable and low in qualified rate;
2. the conventional pneumatic valve of a vacuum machine starts, stops and vacuumizes, an injection head reaches a given position (a passive contact) of a die casting machine, the pneumatic valve passes through a PLC of the die casting machine, a relay then reaches the PLC of the vacuum machine, and the vacuumized pneumatic valve is triggered after a contactor, so that the time for receiving the finished action is about 60-80 ms, the encoder signal of the die casting machine is directly read, the process is controlled in real time without the PLC of the die casting machine, the time for receiving the finished action is about 15ms, the extremely short vacuumizing condition given in high-pressure die casting is met, and the data and curve change in the whole process are recorded in real time; the injection process is accurately controlled in real time, and the vacuum data in the injection process are subjected to powerful functions of online query and retrospective query of data/curves and the like; the maximum storage capacity is 10 ten thousand groups of retrieval record query;
3. in the prior art, the fullness of most of molten metal poured into a pressure chamber is in the range of 30-45%, when the vacuum suction is too large, the molten metal is easily sucked into a vacuum pipeline and a vacuum machine, so that equipment failure cannot be realized, and vacuum die casting cannot be finished;
4. in the prior art, the high-pressure die-casting environment is severe, and contains dust, water vapor, oil stain and the like, and the existing dustproof frame design can well contain all components in the equipment;
5. the production method has the advantages that structural parts with thin wall thickness are produced, the mechanical property of the product is improved, the mold filling condition is improved, the product can meet the heat treatment and welding requirements of T5\ T6\ T7 under the condition of high altitude vacuum (50mbar), the guarantee is provided for the production of new energy automobile machine components, battery packs and 5G communication, the production method is safely put into use for more than 2 years, and more than 100 machines stably run; the high-vacuum die-casting product has the advantages that the performance requirement achieved by the high-vacuum die-casting product is very obvious, a plurality of very complex castings and the processes of the air tightness requirement, the compactness requirement, the welding requirement and the heat treatment requirement of the product are changed, the problem that the casting production cannot be finished in the past is solved, and the guarantee is provided for the existing new energy automobiles, structural members and 5G communication production.
Drawings
FIG. 1 is a schematic structural view of a high vacuum die casting vacuum system according to the present invention;
in the figure: 100 rotary vane vacuum pumps, 101 roots vacuum pumps, 103 pneumatic valves, 102 vacuum tanks, 105 dustproof frames, 104 controllers, 106 vacuum pipes, C1 compressed air valves, D1 movable templates, D2 fixed templates, A1 injection stems, A02 injection heads, the bottoms of A03 compression chambers, B5 compression chamber vacuum ports, B6 thimble vacuum boxes, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 pneumatic valves, 01, 05, 08, 011, 014 and 017 vacuum pressure sensors, 02, 06, 09, 012, 015 and 018 pressure sensors, 03, 07, 010, 013, 016 and 019 filters, B1, B2, B3 and B4 vacuum valves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the present embodiment is a high vacuum die casting vacuum machine system, which includes a vacuum tank 102, a rotary vane vacuum pump 100, a roots vacuum pump 101, a pneumatic valve 103, a dustproof frame 105, an injection rod a1, a compressed air valve C1, a vacuum pipe 106, and a controller 104, wherein the roots vacuum pump 101, the rotary vane vacuum pump 100, and the vacuum tank 102 are sequentially connected, the pneumatic valve 103 is disposed between the roots vacuum pump 101 and the vacuum tank 102, the dustproof frame 105 is disposed outside the roots vacuum pump 101, the rotary vane vacuum pump 100, the vacuum tank 102, and the pneumatic valve, the controller 104 is disposed at the upper left corner of the dustproof frame 105, the vacuum pipe 106 is connected to the vacuum tank 102, the vacuum pipe 106 is further connected to a plurality of branch pipes, the end of each branch pipe is connected to a filter, the compressed air valve is connected to a main air valve, and the main air valve is connected to a plurality of air valve branch pipes, the air valve branch pipes are communicated with the branch pipes in a direct one-to-one correspondence mode, pressure sensors are arranged on the air valve branch pipes, pneumatic valves are arranged on the branch pipes and the air valve branch pipes, and vacuum pressure sensors are arranged between the branch pipes and the filters.
The number of the branch pipes and the number of the air valve branch pipes are 6, each branch pipe is communicated with each air valve branch pipe one by one, one branch pipe is connected with a thimble vacuum box, the other branch pipe is connected with a pressure chamber vacuum port of the injection rod, the rest four branch pipes are respectively connected with a vacuum valve, and the vacuum valves are connected to the indoor bottom of the injection rod.
The front end of the injection rod is provided with an injection head.
According to the working principle of the utility model, before the die casting machine is pneumatically operated, a C1 compressed air valve is opened, a 100-vane rotary vacuum pump is firstly started through a controller 104, then a 101 Roots vacuum pump is started, a rear 103 pneumatic valve is opened to suck a 102 vacuum tank, the pressure is reduced, the vacuum tank starts to pump the gas, the 101 Roots vacuum pump is started to suck the residual gas in the vacuum tank again when the certain pressure is reached, the vacuum tank is waited to reach 1mbar or lower, the vacuum tank is in a lower pressure state, and the die casting machine is waited to give a signal. After the die casting machine is pneumatic, the movable die plate D1 and the fixed die plate D2 complete die assembly firstly, when the die casting machine gives a die assembly in-place signal, the vacuum valve is opened, water vapor remained at the position of the ejector pin B6 of the ejector pin vacuum box is removed, the B6 ejector pin vacuum box is in a negative pressure state, the 017 sensor displays the current vacuum degree, and detection and alarm are carried out. The injection rod A1 moves forward, when the injection head A02 crosses 50mm of the charging port, the 1 pneumatic valve is opened, vacuum pumping is started, the pressure of the vacuum tank rises, the 01 vacuum pressure sensor displays the current vacuum degree (100mbar), and an alarm is detected, when the injection head crosses the vacuum port of the B5 pressure chamber, the 1 pneumatic valve is closed, the 3, 5, 7, 9 pneumatic valves are opened, the gas in the die cavity flows into the vacuum tank through the vacuum valves B1, B2, B3 and B4 through vacuum pipelines, 05, 08, 011, 014 displays the current vacuum degree (below 50mbar), and an alarm is detected. When the injection head reaches the bottom position of the pressure chamber of A03, the pneumatic valves of 3, 5, 7 and 9 are closed, the vacuumizing is completed, and the molten metal enters the negative pressure chamber to fill the whole cavity. Waiting for the metal liquid cooling forming, after the metal liquid cooling forming, opening a movable die D1 by the die-casting machine, opening a fixed die D2 by the vacuum machine, receiving a die-casting machine die opening signal by the vacuum machine, after an ejector pin ejecting signal, opening a pneumatic valve 2, 4, 6, 8, 10, 12, reversely blowing by compressed air, cleaning internal pollutants of a vacuum pipeline B1, B2, B3 and a vacuum valve B4, displaying the current pressure by sensors 02, 06, 09, 012, 015 and 018, and detecting and alarming. The gas sucked in the vacuum tank causes the pressure in the vacuum tank to rise, the gas in the vacuum tank is rapidly pumped out by the double-stage pump set combination of the rotary vane vacuum pump 100 and the Roots vacuum pump 101, and the pressure in the vacuum tank is returned to 1mbar or lower within 30S for the next cycle. The contaminated gas mixture sucked in during the process is advantageously filtered through 03, 07, 010, 013, 016, 019 filters, which means comprise pneumatic valves and sensors.
The utility model has the beneficial effects that:
1. compared with the prior art, the existing vacuum pump group is a single-stage rotary vane vacuum pump, the pressure of a vacuum tank caused by the leakage of a mould and a pipeline in the production process is excessively increased, the initial production condition is difficult to recover quickly, and the product is not continuous, unstable and low in qualified rate;
2. the existing vacuum machine pneumatic valve is started, stopped and vacuumized, and reaches a given position (a passive contact) of a die casting machine through an injection head, passes through a die casting machine PLC, a relay then reaches the vacuum machine PLC, the vacuumized pneumatic valve is triggered after a contactor, and the time of receiving the finished action is about 60-80 ms. The injection process is accurately controlled in real time, and the vacuum data in the injection process are subjected to powerful functions of online query and retrospective query of data/curves and the like; the maximum storage capacity is 10 ten thousand groups of retrieval record query;
3. in the prior art, the fullness of most of molten metal poured into a pressure chamber is in the range of 30-45%, when the vacuum suction is too large, the molten metal is easily sucked into a vacuum pipeline and a vacuum machine, so that equipment failure cannot be realized, and vacuum die casting cannot be finished;
4. in the prior art, the high-pressure die-casting environment is relatively harsh, and contains dust, water vapor, oil stain and the like, and the existing dustproof frame design can well contain all components in the equipment;
5. the production method has the advantages that structural parts with thin wall thickness are produced, the mechanical property of the product is improved, the mold filling condition is improved, the product can meet the heat treatment and welding requirements of T5\ T6\ T7 under the condition of high altitude vacuum (50mbar), the guarantee is provided for the production of new energy automobile machine components, battery packs and 5G communication, the production method is safely put into use for more than 2 years, and more than 100 machines stably run; the high-vacuum die-casting product has the advantages that the performance requirement achieved by the high-vacuum die-casting product is very obvious, a plurality of very complex castings and the processes of the air tightness requirement, the compactness requirement, the welding requirement and the heat treatment requirement of the product are changed, the problem that the casting production cannot be finished in the past is solved, and the guarantee is provided for the existing new energy automobiles, structural members and 5G communication production.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (3)
1. The utility model provides a high vacuum die-casting vacuum machine system which characterized in that: the vacuum valve comprises a vacuum tank, a rotary vane vacuum pump, a Roots vacuum pump, a pneumatic valve, a dustproof rack, an injection rod, a compressed air valve, a vacuum tube and a controller, wherein the Roots vacuum pump, the rotary vane vacuum pump and the vacuum tank are sequentially connected, the pneumatic valve is arranged between the Roots vacuum pump and the vacuum tank, the dustproof rack is arranged outside the Roots vacuum pump, the rotary vane vacuum pump, the vacuum tank and the pneumatic valve, the controller is arranged at the upper left corner of the dustproof rack, the vacuum tube is connected with the vacuum tank, the vacuum tube is also connected with a plurality of branch tubes, the end part of each branch tube is connected with a filter, the compressed air valve is connected with an air valve main tube, the air valve main tube is connected with a plurality of air valve branch tubes, the air valve branch tubes are directly communicated with the branch tubes in one-to-one correspondence, and pressure sensors are arranged on the air valve branch tubes, pneumatic valves are arranged on the branch pipe and the air valve branch pipe, and a vacuum pressure sensor is arranged between the branch pipe and the filter.
2. A high vacuum die cast vacuum system as claimed in claim 1 wherein: the number of the branch pipes and the number of the air valve branch pipes are 6, each branch pipe is communicated with each air valve branch pipe one by one, one branch pipe is connected with a thimble vacuum box, the other branch pipe is connected with a pressure chamber vacuum port of the injection rod, the rest four branch pipes are respectively connected with a vacuum valve, and the vacuum valves are connected to the indoor bottom of the injection rod.
3. A high vacuum die cast vacuum system as claimed in claim 1 wherein: the front end of the injection rod is provided with an injection head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023220917.2U CN216441624U (en) | 2020-12-28 | 2020-12-28 | High vacuum die-casting vacuum machine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023220917.2U CN216441624U (en) | 2020-12-28 | 2020-12-28 | High vacuum die-casting vacuum machine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216441624U true CN216441624U (en) | 2022-05-06 |
Family
ID=81347362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023220917.2U Active CN216441624U (en) | 2020-12-28 | 2020-12-28 | High vacuum die-casting vacuum machine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216441624U (en) |
-
2020
- 2020-12-28 CN CN202023220917.2U patent/CN216441624U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108480597B (en) | A kind of condition of high vacuum degree of die casting fast implements device | |
| CN102950270A (en) | Multidirectional evacuating device for die-casting | |
| CN101954470A (en) | Vacuum die-casting system of die-casting machine | |
| CN206305411U (en) | A kind of die casting machine vacuumizes blowback device of air | |
| CN112570678A (en) | High-vacuum die-casting vacuum machine system and operation method | |
| CN216441624U (en) | High vacuum die-casting vacuum machine system | |
| CN105642862A (en) | Vacuum die-casting device and method | |
| CN201586741U (en) | Vacuum pressure casting machine | |
| CN101704085B (en) | Vacuum exhaust system for die casting | |
| CN105170938B (en) | A kind of evacuated die-casting process assistant formation system | |
| CN202951864U (en) | Active exhaust device | |
| CN101791686A (en) | Vacuum pressure casting machine | |
| CN107020361A (en) | Part of automobile engine microdiecast mould | |
| CN116274933A (en) | High-performance structural system of large-tonnage die-casting vacuum machine | |
| CN105170939B (en) | Vacuum machine | |
| CN209174873U (en) | A kind of evacuated die-casting process control system of avoidable pipeline pollution | |
| CN205056984U (en) | Vacuum machine | |
| CN101780938A (en) | Device and process for putting working medium into split-type heat pipe solar flat plate collector | |
| CN217393708U (en) | Die casting die response vacuum pumping system | |
| CN220278242U (en) | Die-casting workpiece die with high air tightness valve plate | |
| CN106694845A (en) | High-vacuum mold for alloy die-casting formation | |
| CN107335789B (en) | Double independent system die casting high vacuum device | |
| CN201715233U (en) | Gas filling machine of automotive expansion valve | |
| CN110666128A (en) | Airtight vacuum system of high-pressure die casting machine and vacuum pipeline airtightness detection method | |
| CN206065366U (en) | A kind of high vacuum die casting alarm device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |