CN112588491B - Pulse type dry-wet mixed type mold release agent spraying system - Google Patents
Pulse type dry-wet mixed type mold release agent spraying system Download PDFInfo
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- CN112588491B CN112588491B CN202011527601.XA CN202011527601A CN112588491B CN 112588491 B CN112588491 B CN 112588491B CN 202011527601 A CN202011527601 A CN 202011527601A CN 112588491 B CN112588491 B CN 112588491B
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- release agent
- dry
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- mold release
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
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- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Devices For Molds (AREA)
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Abstract
The invention discloses a pulse type dry-wet mixed type release agent spraying system which comprises a wet type release agent spraying system, wherein the wet type release agent spraying system comprises an air source, a wet type release agent tank, a first electromagnetic valve and a nozzle, the air source, the wet type release agent tank, the first electromagnetic valve and the nozzle are sequentially connected through a pipeline, the dry type release agent spraying system also comprises a dry type release agent spraying system, the dry type release agent spraying system comprises the air source, the dry type release agent tank, a pinch valve, a second electromagnetic valve and the nozzle, the air source, the second electromagnetic valve and the nozzle are sequentially connected through a pipeline, the dry type release agent tank is connected with the nozzle through a pipeline, and the pinch valve is arranged on the pipeline connected between the dry type release agent tank and the nozzle. The wet release agent is sprayed firstly, and then the dry release agent is sprayed, so that the dry release agent is attached to the inner wall of the cavity by utilizing the adsorption force of the wet release agent, and the automatic spraying of the mixed dry and wet release agents is realized.
Description
Technical Field
The invention belongs to the technical field of compression molding equipment, and particularly relates to a pulse type dry-wet mixed mold release agent spraying system for a neodymium iron boron magnetic field molding press.
Background
The neodymium iron boron magnetic field forming press is used for forming neodymium iron boron powder into an aluminum iron sheet material through mould pressing and magnetic field orientation, and in order to facilitate demoulding and taking out of the formed neodymium iron boron sheet material from a mould cavity, a mould release agent needs to be sprayed in the mould cavity before the powder is added.
The release agent comprises a dry release agent and a wet release agent, wherein the dry release agent is solid powder, and the wet release agent is liquid, so that the dry release agent is superior to the wet release agent in terms of release effect applied to the neodymium iron boron magnetic field forming press. Generally, a manual magnetic field forming press adopts a manual mode to coat a dry release agent or a wet release agent on the inner wall of a cavity, while the existing automatic magnetic field forming press adopts an automatic mechanism to automatically spray the wet release agent on the inner wall of the cavity, so that the manual coating of the release agent is difficult to uniformly control the coating amount of the release agent, the automatic spraying of the release agent has higher spraying efficiency, and the operation is safe. The existing release agent spraying system of the automatic magnetic field forming press can only automatically spray a wet release agent, but cannot be applied to a dry release agent, because the powder dry release agent has a high spraying speed in pneumatic spraying and is difficult to attach to the inner wall of a mold cavity; in addition, the powdery dry mold release agent is difficult to realize automatic feeding on a mechanical mechanism.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a pulse type dry-wet mixed type mold release agent spraying system, which adopts a mode of spraying a wet mold release agent first and then spraying a dry mold release agent, so that the dry mold release agent is adhered to the inner wall of a mold cavity by utilizing the adsorption force of the wet mold release agent, and the automatic spraying of the dry and wet mold release agents is realized.
In order to achieve the above object, the present invention adopts the following technical solutions.
The utility model provides a release agent system is spouted to pulsed dry-wet mixed type, includes wet-type spray agent system, and this wet-type spray agent system includes air supply, wet-type release agent jar, first solenoid valve and nozzle, and air supply, wet-type release agent jar, first solenoid valve and nozzle pass through the tube coupling in proper order, still includes dry-type spray agent system, and this dry-type spray agent system includes air supply, dry-type release agent jar, pinch valve, second solenoid valve and the nozzle, air supply, second solenoid valve and pass through the tube coupling in proper order between the nozzle, dry-type release agent jar with the nozzle passes through the tube coupling, pinch valve locate dry-type release agent jar with the pipeline of being connected between the nozzle.
Furthermore, the dry type release agent tank is a release agent tank driven by compressed air to feed, and the air source is connected with the dry type release agent tank through a pipeline. And a wet release agent feeding mechanism is also arranged on a pipeline connected between the air source and the wet release agent tank. And a first pressure reducing valve is further arranged on a pipeline connected between the air source and the wet release agent tank, and a second pressure reducing valve is further arranged on a pipeline connected between the air source and the second electromagnetic valve.
Preferably, the dry type mold release agent tank is a mold release agent tank driven by a motor to feed materials, the dry type mold release agent tank comprises a motor component and a tank body, a feeding screw rod is arranged in the tank body, the motor component is arranged at the upper part of the tank body and is in transmission connection with the feeding screw rod, and a discharge hole matched with the feeding screw rod is arranged at the lower part of the tank body. The motor assembly comprises a protective cover, a motor and a coupler, the protective cover is fixedly connected with the upper end of the tank body, the motor is installed in the protective cover through a fixing plate, and an output shaft of the motor is connected with the feeding screw rod through the coupler.
Further, the nozzle of the wet release agent system and the nozzle of the dry release agent system are one common nozzle or two independent nozzles.
After the technical scheme is adopted, compared with the prior art, the invention has the following advantages.
The pulse dry-wet mixed type mold release agent spraying system comprises a wet mold release agent spraying system and a dry mold release agent spraying system, when the pulse dry-wet mixed type mold release agent spraying system is used, the wet mold release agent spraying system is started to spray a small amount of wet mold release agent into a mold cavity, the wet mold release agent is only used for wetting the inner wall of the mold cavity, and then the dry mold release agent spraying system is started to spray a dry mold release agent into the mold cavity.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a second embodiment of the present invention.
FIG. 3 is a schematic diagram of the construction of a motor-driven feed release agent tank of the present invention.
In the drawing, 1, a wet type release agent tank, 2, a first electromagnetic valve, 3, a nozzle, 4, a dry type release agent tank, 5, a pinch valve, 6, a second electromagnetic valve, 7, a feeding mechanism, 8, a first pressure reducing valve, 9, a second pressure reducing valve, 10, a first three-way joint, 11, a second three-way joint, 12, a third three-way joint, 40, a motor, 41, a tank body, 42, a feeding screw rod, 43, a discharge hole, 44, a protective cover, 45, a fixed plate and 46 are provided with a coupler.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the drawings.
As shown in fig. 1 to fig. 3, the pulse type dry-wet mixed type mold release agent spraying system comprises a wet type mold release agent spraying system and a dry type mold release agent spraying system, wherein the wet type mold release agent spraying system comprises an air source, a wet type mold release agent tank 1, a first electromagnetic valve 2 and a nozzle 3, the air source, the wet type mold release agent tank 1, the first electromagnetic valve 2 and the nozzle 3 are sequentially connected through a pipeline, the dry type mold release agent spraying system comprises the air source, a dry type mold release agent tank 4, a pinch valve 5, a second electromagnetic valve 6 and the nozzle 3, the air source, the second electromagnetic valve 6 and the nozzle 3 are sequentially connected through a pipeline, the dry type mold release agent tank 4 is connected with the nozzle 3 through a pipeline, and the pinch valve 5 is arranged on a pipeline connected between the dry type mold release agent tank 4 and the nozzle 3.
In a preferred embodiment, as shown in fig. 1, the air source output end is connected to a first three-way joint 10, one end of the first three-way joint 10 is connected to the input end of a first pressure reducing valve 8, the output end of the first pressure reducing valve 8 is connected to the input end of the wet mold release agent tank 1, and the first pressure reducing valve 8 is used for regulating the air pressure of the air source entering the wet mold release agent tank 1 and the spraying pressure of the nozzle 3.
Wherein, the pipeline that is connected between air supply and wet-type release agent jar 1 still is equipped with wet-type release agent feeding mechanism 7, makes things convenient for wet-type release agent jar 1 to add wet-type release agent, and this wet-type release agent feeding mechanism 7 includes the hopper that has the ball valve. In order to conveniently check the wet demolding agent amount in the wet demolding agent tank 1, a liquid level observer is arranged on the side wall of the wet demolding agent tank.
An output end of the wet mold release agent tank 1 is connected to the nozzle 3 through a pipe provided with a first solenoid valve 2, the first solenoid valve 2 is used for controlling the nozzle 3 to spray the wet mold release agent, the wet mold release agent in the wet mold release agent tank 1 is ejected from the nozzle 3 under the action of air pressure when the first solenoid valve 2 is opened, and the nozzle 3 stops spraying the wet mold release agent when the first solenoid valve 2 is closed. Generally, the spraying amount of the wet release agent can be controlled by the opening time of the electromagnetic valve 2; since the wet mold release agent is liquid, feeding and spraying thereof can be simultaneously performed under the control of the first electromagnetic valve 2.
The other end of the first three-way joint 10 is connected with the input end of a second pressure reducing valve 9, the output end of the second pressure reducing valve 9 is connected to a second three-way joint 11 through a pipeline, a second electromagnetic valve 6 is arranged on the pipeline, one end of the second three-way joint 11 is connected to the nozzle 3, the output end of the dry release agent tank 4 is connected to the other end of the second three-way joint 11 through a pipeline, a pinch valve 5 used for controlling the on-off of the pipeline is arranged on the pipeline, when the pinch valve 5 is opened, the dry release agent in the dry release agent tank 4 can enter the pipeline of the second three-way joint 11 through the pinch valve 5, and when the pinch valve 5 is closed, the pipeline of the dry release agent tank 4 and the second three-way joint 11 is blocked. As an equivalent alternative, the pinch valve 5 may also be implemented by other solenoid valves or by a block valve.
In the present embodiment, the dry mold release agent tank 4 is a mold release agent tank that is fed by compressed air, and the air source is connected to the dry mold release agent tank 4 through a pipeline. Specifically, a third three-way joint 12 is further provided on a connecting line between the second pressure reducing valve 9 and the second electromagnetic valve 6, the third three-way joint 12 is connected to an air inlet of the dry release agent tank 4 through a pipeline, and the second pressure reducing valve 9 is used for adjusting the air pressure entering the dry release agent tank 4 and the spraying pressure of the nozzle 3. Since the powder-shaped dry mold release agent is difficult to realize accurate feeding, feeding and spraying of the powder-shaped dry mold release agent are separately controlled by the pinch valve 5 and the second electromagnetic valve 6. In order to realize the uniform spraying of the dry mold release agent on the inner wall of the mold cavity, the second electromagnetic valve 6 adopts a pulse type control mode, namely the second electromagnetic valve 6 is continuously opened at intervals when the pinch valve 5 is opened, the dry mold release agent can 4 quantitatively conveys the dry mold release agent to a pipeline where the second three-way joint 11 is positioned through the pinch valve 5 during the two opening gaps of the second electromagnetic valve 6, and therefore the dry mold release agent can be completely and quantitatively sprayed out by the nozzle 3 each time.
In the present embodiment, the nozzle 3 of the wet release agent spraying system and the nozzle 3 of the dry release agent spraying system are one common nozzle 3, but as shown in fig. 1, two independent nozzles 3 may be provided, as shown in fig. 3.
The pulse type dry-wet mixed type spray release agent system of the present invention is not only used for spraying a wet release agent, but also used for spraying a wet release agent alone, and the wet spray release agent system of the present invention is used for spraying a wet release agent on an inner wall of a cavity for wetting the inner wall of the cavity, and has a small spraying amount relative to a spraying amount for releasing, and functions as an adsorbent for a dry release agent on the inner wall of the cavity to facilitate the dry release agent to be effectively adhered to the inner wall of the cavity even in a state of being sprayed with air pressure, and finally, the dry release agent exerts a good releasing effect on the cavity.
Another preferred embodiment, as shown in fig. 2-3, is different from the previous embodiment in that the dry mold release agent tank 4 is a mold release agent tank with motor-driven feeding, the dry mold release agent tank 4 includes a motor assembly and a tank body 41, the tank body 41 is provided with a feeding screw 42, the motor assembly is arranged on the upper portion of the tank body 41 and is in transmission connection with the feeding screw 42, and the lower portion of the tank body 41 is provided with a discharge port 43 matched with the feeding screw 42. The motor component drives the feeding screw 42 to rotate in the tank body 41 at a constant speed, so that the discharge port 43 can output dry release agent powder at a constant speed, accurate quantitative feeding can be carried out according to the rotating speed of the motor, the motor-driven feeding is more accurate relative to the dry release agent tank 4 for pneumatically driven feeding, and the dry release agent can be sprayed in a mold cavity more uniformly.
In this embodiment, the motor assembly includes a protective cover 44, a motor 40 and a coupling 46, the protective cover 44 is fixedly connected to the upper end of the tank 41, the motor 40 is mounted in the protective cover 44 through a fixing plate 45, and an output shaft of the motor 40 is connected to the feeding screw 42 through the coupling 46. Because the neodymium iron boron powder is flammable, the motor 40 needs to be isolated and installed in the protective cover 44 to ensure the use safety.
The pulse dry-wet mixed type release agent spraying system of the present embodiment also adopts a pulse controlled spraying method. The nozzle of the wet release agent system and the nozzle of the dry release agent system are one common nozzle or two separate nozzles.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (6)
1. Pulsed dry-wet mixed type mold release agent spraying system comprises a wet type mold release agent spraying system, wherein the wet type mold release agent spraying system comprises an air source, a wet type mold release agent tank (1), a first electromagnetic valve (2) and a nozzle (3), the air source, the wet type mold release agent tank (1), the first electromagnetic valve (2) and the nozzle (3) are sequentially connected through pipelines, and the wet type mold release agent spraying system is characterized in that: the dry-type demolding agent spraying system comprises the air source, a dry-type demolding agent tank (4), a pinch valve (5), a second electromagnetic valve (6) and the nozzle (3), wherein the air source, the second electromagnetic valve (6) and the nozzle (3) are sequentially connected through a pipeline, the second electromagnetic valve (6) adopts a pulse type control mode, the dry-type demolding agent tank (4) is connected with the nozzle (3) through a pipeline, and the pinch valve (5) is arranged on a pipeline connected between the dry-type demolding agent tank (4) and the nozzle (3); the dry-type demolding agent tank (4) is a demolding agent tank driven by a motor to feed materials, the dry-type demolding agent tank (4) comprises a motor component and a tank body (41), a feeding screw rod (42) is arranged in the tank body (41), the motor component is arranged on the upper portion of the tank body (41) and is in transmission connection with the feeding screw rod (42), and a discharge hole (43) matched with the feeding screw rod (42) is formed in the lower portion of the tank body (41).
2. A pulsed dry-wet hybrid mold release agent spray system according to claim 1, characterized in that: the dry type demolding agent tank (4) is a demolding agent tank driven by compressed air to feed, and the air source is connected with the dry type demolding agent tank (4) through a pipeline.
3. A pulsed dry-wet hybrid mold release agent spray system according to claim 1, characterized in that: the motor assembly comprises a protective cover (44), a motor (40) and a coupler (46), the protective cover (44) is fixedly connected with the upper end of the tank body (41), the motor (40) is installed in the protective cover (44) through a fixing plate (45), and an output shaft of the motor (40) is connected with the feeding screw rod (42) through the coupler (46).
4. The pulsed dry-wet hybrid mold release system according to claim 1, wherein: the nozzle (3) of a wet release agent system and the nozzle (3) of a dry release agent system are one common nozzle (3) or two separate nozzles (3).
5. The pulsed dry-wet hybrid mold release system according to claim 1, wherein: and a wet release agent feeding mechanism (7) is also arranged on a pipeline connected between the air source and the wet release agent tank (1).
6. A pulsed dry-wet hybrid mold release agent spray system according to claim 1, characterized in that: the pipeline that is connected between air supply and wet-type release agent jar (1) still is equipped with first relief pressure valve (8), the pipeline that is connected between air supply and second solenoid valve (6) still is equipped with second relief pressure valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527601.XA CN112588491B (en) | 2020-12-22 | 2020-12-22 | Pulse type dry-wet mixed type mold release agent spraying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527601.XA CN112588491B (en) | 2020-12-22 | 2020-12-22 | Pulse type dry-wet mixed type mold release agent spraying system |
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| CN112588491A CN112588491A (en) | 2021-04-02 |
| CN112588491B true CN112588491B (en) | 2022-12-23 |
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| US7470447B2 (en) * | 2003-02-14 | 2008-12-30 | Panasonic Corporation | Method and device for discharging fluid |
| FR2884739B1 (en) * | 2005-04-20 | 2007-06-29 | Pechiney Electrometallurgie So | DRY-SPRAY PRODUCTS FOR THE PROTECTION OF CENTRIFUGE CASTING MOLDS OF CAST IRON PIPES IN COMBINATION WITH A WET-SPRAY PRODUCT |
| DE102008035632B4 (en) * | 2008-07-31 | 2011-07-28 | Wollin GmbH, 73547 | Spray nozzle for a spray tool |
| KR101116135B1 (en) * | 2009-12-10 | 2012-03-07 | 주식회사 탑 엔지니어링 | Control method for dropping liquid crystal |
| CN204640892U (en) * | 2015-05-21 | 2015-09-16 | 武汉中磁浩源科技有限公司 | A kind of multistation magnetic core ring hydraulic press |
| JP2017164785A (en) * | 2016-03-16 | 2017-09-21 | ジヤトコ株式会社 | Hot-forging molding equipment, and hot-forging molding method |
| CN210279559U (en) * | 2019-06-13 | 2020-04-10 | 北京市粮食科学研究院 | Liquid spraying device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409994A (en) * | 2007-10-09 | 2009-04-15 | 张复佳 | Procedure for spray painting and material-displacing superconductive soaking plate, and executive device thereof |
| CN106000705A (en) * | 2016-07-12 | 2016-10-12 | 河北大学 | Full-automatic pulse spraying device and method used for preparing thin film |
| CN207496070U (en) * | 2017-11-23 | 2018-06-15 | 广东东电化广晟稀土高新材料有限公司 | A kind of uniform coating unit of releasing agent |
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