CN113579199A - Novel method for lubricating punch of liquid die forging machine - Google Patents
Novel method for lubricating punch of liquid die forging machine Download PDFInfo
- Publication number
- CN113579199A CN113579199A CN202110826928.5A CN202110826928A CN113579199A CN 113579199 A CN113579199 A CN 113579199A CN 202110826928 A CN202110826928 A CN 202110826928A CN 113579199 A CN113579199 A CN 113579199A
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- China
- Prior art keywords
- punch
- lubricating
- material chamber
- molten metal
- liquid
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 22
- 238000005242 forging Methods 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000010687 lubricating oil Substances 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004512 die casting Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/203—Injection pistons
Abstract
The invention relates to a novel method for lubricating a punch of a liquid die forging machine, which comprises the following steps: the punch is moved out of the material chamber, the punch is staggered with the material chamber, and at least part of the punch is exposed; spraying lubricating oil to the exposed punch by the nozzle; the punch is lifted to the position required by the process; the molten metal enters the material chamber from the molten metal inlet; the drift after the lubrication rises and goes into the mould cavity with metal hydraulic pressure, when the drift moves to the feed chamber outside, with lubricating oil spraying to the drift lateral surface, can lubricate the drift, the drift gets into the feed chamber after the lubrication, then the metal liquid pours into the feed chamber into, and at this in-process, lubricating oil can not get into inside the metal liquid, can not produce the pollution to the metal liquid to product quality's stability in the production process has been guaranteed.
Description
Technical Field
The invention relates to the technical field of lubrication, in particular to a novel method for lubricating a punch of a liquid die forging machine.
Background
The quality of the lubrication of a punch of a vertical die casting machine or a vertical liquid die forging machine influences the movement speed of the punch and is directly related to the quality of a casting. The horizontal die casting machine is convenient to lubricate the punch in a mode of punching oil or adding particles because the punch is fixed after returning. In the vertical die casting machine or the liquid die forging machine, the position of the punch in the material chamber or the sprue bush changes along with different weights of molten metals of different castings, so that the punch is completely positioned in the material chamber or the sprue bush in many times, particles or punch oil are added into the punch through a molten metal inlet in a lubricating mode, the molten metal poured into the punch through the molten metal inlet is mixed with the particles or the punch oil to cause pollution, air holes and slag inclusion are easily generated in products, and particularly for the liquid die forging machine, the added particles influence the quality of high-grade castings.
Disclosure of Invention
Based on this, it is necessary to provide a punch lubricating injection structure aiming at the problems in the prior art, and through changing the punch lubricating structure, the punch lubricating process does not pollute the molten metal and ensures the product quality.
A novel method for lubricating a punch of a liquid die forging machine is characterized by comprising the following steps:
the punch is moved out of the material chamber, the punch is staggered with the material chamber, and at least part of the punch is exposed;
spraying lubricating oil to the exposed punch by the nozzle;
the punch is lifted to the position required by the process;
the molten metal enters the material chamber from the molten metal inlet;
the lubricated punch is raised to force metal liquid into the die cavity.
In one embodiment, the plunger is exposed at least half way when the lubricant is sprayed.
In one embodiment, the position required by the process is that after the molten metal enters the material chamber, the molten metal overflows to the cavity or the distance between the top surface of the molten metal and a gate of the cavity is less than 1 cm.
In one embodiment, a detection device for detecting the position of the punch is arranged outside the material chamber.
In one embodiment, the detection device is a sensor or an encoder or an electronic ruler or a travel switch or a proximity switch.
In one embodiment, the detection device is connected with a PLC, and the PLC is connected with a solenoid valve.
The invention has the beneficial effects that: when the drift removed to the material room outside, with lubricating oil spraying to drift lateral surface, can lubricate the drift, the drift got into the material room after lubricated, then the metal liquid pours into the material room, and at this in-process, lubricating oil can not get into inside the metal liquid, can not produce the pollution to the metal liquid to product quality's stability in the production process has been guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a spraying device of a prior horizontal die casting machine;
FIG. 2 is a schematic structural view of a jetting device of a vertical die casting machine (or liquid forging machine) according to the present invention;
the device comprises a material chamber 1, a material chamber 2, a punch, 3, a molten metal inlet 4 and an oil nozzle.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 2, a punch lubricating and spraying structure comprises a material chamber, wherein a movable punch is arranged in the material chamber, the punch moves in the material chamber along the axial direction of the punch, an oil pipe and a nozzle are arranged on the outer side of the material chamber, the nozzle is sequentially connected with the oil pipe, an electromagnetic valve and a lubricant box through a pipeline, the nozzle is located on the outer side of the material chamber, and when the punch moves out of the material chamber, the nozzle sprays lubricating oil in an oil tank onto the outer surface of the punch. And the punch after being sprayed with the lubricating oil rises to the position required by the process to wait for extrusion.
Specifically, when vertical die casting machine or liquid die forging machine operation, metal is from the molten metal entry into the feed chamber indoor, the drift can move in the feed chamber and push into the die cavity with the molten metal, in order to improve the smooth and easy of drift removal, after the drift shifts out the feed chamber position outside, the fuel sprayer sprays lubricating oil to the drift surface, for lubricate the drift surface, after accomplishing the lubrication, the drift shifts into the feed chamber, then pour into the feed chamber with the molten metal again, at this moment, lubricate the drift for better, the fuel sprayer of this moment is equipped with a plurality ofly, encircle the setting around the drift.
As shown in fig. 1, for the horizontal die casting machine, the punch is returned to the fixed position each time, most of which is exposed outside the material chamber, so that the punch can be conveniently lubricated, as shown in fig. 2, and the vertical die casting machine or the liquid die forging machine has different positions of the different punches of the product because the positions of the punches in the material chamber or the sprue bush are changed along with the different weights of the required molten metal of different castings. In the invention, the punch is returned to a fixed position (outside the material chamber) every time, and after the lubricating oil is sprayed, the punch is lifted to the position required by the process set by the user and waits for extrusion. Therefore, the influence factors of the weight of the molten metal can be eliminated, and meanwhile, the lubricating effect and the product quality can be ensured.
Furthermore, in order to better realize the automation of lubricating oil spraying, a sensor for detecting the position of the punch is arranged outside the material chamber, the sensor can adopt an infrared sensor at the moment, after the punch is detected to retreat to a specified position, a signal is transmitted to the PLC, and then the PLC controls the opening of the oil nozzle through the electromagnetic valve.
The novel method for lubricating the punch of the liquid die forging machine adopts the punch lubricating and spraying device and comprises the following steps:
the punch is moved out of the material chamber, the punch is staggered with the material chamber, at least part of the punch is exposed, and the exposed part is at least half of the punch, so that the punch can be effectively lubricated in the process of lubricating the punch;
the nozzle sprays lubricating oil on the exposed punch,
the punch is lifted to a position required by the process, and at the moment, the position required by the process is that the molten metal overflows to a cavity or the distance between the top surface of the molten metal and a gate of the cavity is less than 1cm after the molten metal enters a material chamber;
the molten metal enters the material chamber from the molten metal inlet,
the lubricated punch is raised to force metal liquid into the die cavity.
In order to ensure the lubricating effect during lubricating, at least half of the punch is exposed during spraying of lubricating oil.
When the punch moves to the outer side of the material chamber, lubricating oil is sprayed to the outer side face of the punch, the punch can be lubricated, the punch returns to the position set by the process after the spraying is finished, the stroke after the material is injected is reduced, the filling time and the resistance are reduced, the punch enters the material chamber after the lubricating, the lubricating oil cannot enter the metal liquid and cannot pollute the metal liquid, and therefore the stability of the product quality in the production process is guaranteed.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A novel method for lubricating a punch of a liquid die forging machine is characterized by comprising the following steps:
the punch is moved out of the material chamber, the punch is staggered with the material chamber, and at least part of the punch is exposed;
spraying lubricating oil to the exposed punch by the nozzle;
the punch is lifted to the position required by the process;
the molten metal enters the material chamber from the molten metal inlet;
the lubricated punch is raised to force metal liquid into the die cavity.
2. The method of claim 1, wherein the punch is exposed to the outside of the die when the lubricant is sprayed.
3. The method for lubricating the punch of the liquid forging machine according to claim 2, wherein the process requirement is that the molten metal overflows to the die cavity or the distance between the top surface of the molten metal and the gate of the die cavity is less than 1cm after the molten metal enters the material chamber.
4. The new method for lubricating the punch of the liquid forging press as claimed in claim 3, wherein a detecting device for detecting the position of the punch is provided outside the material chamber.
5. The new method for lubricating the punch of the liquid forging press according to claim 4, wherein the detection device is a sensor or an encoder or an electronic ruler or a travel switch or a proximity switch.
6. The new method for lubricating the punch of the liquid forging machine according to claim 5, wherein the detection device is connected with a PLC, and the PLC is connected with a solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826928.5A CN113579199A (en) | 2021-07-21 | 2021-07-21 | Novel method for lubricating punch of liquid die forging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826928.5A CN113579199A (en) | 2021-07-21 | 2021-07-21 | Novel method for lubricating punch of liquid die forging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113579199A true CN113579199A (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110826928.5A Pending CN113579199A (en) | 2021-07-21 | 2021-07-21 | Novel method for lubricating punch of liquid die forging machine |
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| Country | Link |
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| CN (1) | CN113579199A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0603631A1 (en) * | 1992-12-23 | 1994-06-29 | Maschinenfabrik Müller-Weingarten AG | Die casting arrangement |
| CA2189172A1 (en) * | 1995-12-05 | 1997-06-06 | Lewis Gene Freeman | Method of Die Casting Machine Lubrication with Unitized Lubricant |
| CN102974796A (en) * | 2012-10-24 | 2013-03-20 | 华中科技大学 | Pressure chamber lubrication method and device of die-casting machine |
| CN204603261U (en) * | 2015-04-29 | 2015-09-02 | 台州市雄风铸业有限公司 | Die casting machine injection drift auto-jet lubrication device |
| CN108453233A (en) * | 2017-02-17 | 2018-08-28 | 日本电产株式会社 | The lubricant supplying method of injection piston device and injection piston device |
| CN210372816U (en) * | 2019-08-02 | 2020-04-21 | 史蒂文铸造科技(广州)有限公司 | Automatic oil feeding device and die casting equipment |
-
2021
- 2021-07-21 CN CN202110826928.5A patent/CN113579199A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0603631A1 (en) * | 1992-12-23 | 1994-06-29 | Maschinenfabrik Müller-Weingarten AG | Die casting arrangement |
| CA2189172A1 (en) * | 1995-12-05 | 1997-06-06 | Lewis Gene Freeman | Method of Die Casting Machine Lubrication with Unitized Lubricant |
| CN102974796A (en) * | 2012-10-24 | 2013-03-20 | 华中科技大学 | Pressure chamber lubrication method and device of die-casting machine |
| CN204603261U (en) * | 2015-04-29 | 2015-09-02 | 台州市雄风铸业有限公司 | Die casting machine injection drift auto-jet lubrication device |
| CN108453233A (en) * | 2017-02-17 | 2018-08-28 | 日本电产株式会社 | The lubricant supplying method of injection piston device and injection piston device |
| CN210372816U (en) * | 2019-08-02 | 2020-04-21 | 史蒂文铸造科技(广州)有限公司 | Automatic oil feeding device and die casting equipment |
Non-Patent Citations (1)
| Title |
|---|
| 王卫卫: "《材料成形设备》", 机械工业出版社, pages: 214 - 215 * |
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