阅读说明：本技术 一种热挤压润滑剂自动喷涂装置及喷涂方法 (Automatic spraying device and method for hot extrusion lubricant ) 是由 曲文涛 范江波 杨有增 田彬 于 2020-12-28 设计创作，主要内容包括：本发明提供了一种热挤压润滑剂自动喷涂装置,包括：升降气缸、平移基座、平移气缸、喷嘴连接底座、喷嘴和控制器；所述平移基座可升降地连接在所述升降气缸的输出轴上,所述喷嘴固定连接在所述喷嘴连接底座上,所述喷嘴连接底座可伸缩地连接在所述平移气缸的输出轴上,所述平移气缸固定连接在所述平移基座上；其中,所述喷嘴通过电磁阀与压缩空气管路和润滑剂乳管路相连,所述控制器与所述升降气缸、平移气缸和电磁阀控制连接。本发明升降气缸驱动喷嘴进行上下运动,平移气缸驱动喷嘴水平运动,可以完成对模具内腔的除杂和喷润滑剂的动作。整个过程自动完成,节省人力,大大提升了工作效率,保证了模具内腔的温度,提升了润滑剂的喷涂效果。(The invention provides an automatic spraying device for a hot extrusion lubricant, which comprises: the device comprises a lifting cylinder, a translation base, a translation cylinder, a nozzle connecting base, a nozzle and a controller; the translation base is connected to an output shaft of the lifting cylinder in a lifting manner, the nozzle is fixedly connected to the nozzle connecting base, the nozzle connecting base is telescopically connected to the output shaft of the translation cylinder, and the translation cylinder is fixedly connected to the translation base; the nozzle is connected with a compressed air pipeline and a lubricant emulsion pipeline through an electromagnetic valve, and the controller is in control connection with the lifting cylinder, the translation cylinder and the electromagnetic valve. The lifting cylinder drives the nozzle to move up and down, and the translation cylinder drives the nozzle to move horizontally, so that the actions of removing impurities and spraying a lubricant in the inner cavity of the die can be completed. The whole process is automatically finished, labor is saved, the working efficiency is greatly improved, the temperature of the inner cavity of the die is guaranteed, and the spraying effect of the lubricant is improved.)

1. A hot extrusion lubricant automatic spray coating device, comprising:

the device comprises a lifting cylinder, a translation base, a translation cylinder, a nozzle connecting base, a nozzle and a controller;

the translation base is connected to an output shaft of the lifting cylinder in a lifting manner, the nozzle is fixedly connected to the nozzle connecting base, the nozzle connecting base is telescopically connected to the output shaft of the translation cylinder, and the translation cylinder is fixedly connected to the translation base;

the nozzle is connected with a compressed air pipeline and a lubricant emulsion pipeline through an electromagnetic valve, and the controller is in control connection with the lifting cylinder, the translation cylinder and the electromagnetic valve.

2. The automatic hot extrusion lubricant spraying apparatus according to claim 1,

the lower extreme of lift cylinder is connected with PMKD, the upper end of lift cylinder is connected with the lift base, the lift base with still be connected with the lifter between the PMKD, the output shaft of lift cylinder passes the lift base with the translation base links to each other, the extension rod of lifter pass the lift base with the translation base links to each other.

3. The automatic hot extrusion lubricant spraying apparatus according to claim 2,

the lifting rods are provided with two lifting rods, and are symmetrically arranged on two sides of the lifting cylinder relative to the lifting cylinder.

4. The automatic hot extrusion lubricant spray apparatus of claim 1, further comprising:

a lubricant tank in communication with the lubricant emulsion conduit;

and a stirring device is arranged in the lubricant tank.

5. The automatic hot extrusion lubricant spraying apparatus according to claim 4,

the stirring device comprises a speed reducing motor and stirring blades, and the speed reducing motor is in driving connection with the stirring blades.

6. The automatic hot extrusion lubricant spraying apparatus according to claim 4,

the upper end of emollient jar has the charge door, the charge door adopts skeleton oil blanket and fluororubber O type circle to seal.

7. A method for automatically spraying a hot extrusion lubricant, comprising:

after one-time work of an extruder is finished, starting a lifting cylinder, and lifting a nozzle to be consistent with the center height of a mold inner cavity of the extruder;

step two, the electromagnetic valve is switched to be communicated with a compressed air pipeline, so that compressed air is sprayed out of the nozzle, meanwhile, the translation cylinder is started, the nozzle is driven to translate and enter a die cavity of the extruder, and impurities such as residual iron sheets in the die cavity are cleaned;

step three, after the translation cylinder is stretched out, the original road returns, and a nozzle keeps spraying compressed air in the returning process so as to clean impurities such as iron sheets and the like;

after cleaning is finished, the electromagnetic valve is switched to be communicated with a lubricant emulsion pipeline, so that the nozzle sprays the lubricant, and meanwhile, the translation cylinder is started to drive the nozzle to translate into the inner cavity of the die of the extruder, so that the lubricant is uniformly sprayed on the inner wall of the inner cavity of the die;

and step five, after the spraying is finished, the translation air cylinder retreats, and one working cycle is finished.

8. The method of claim 7, wherein the first step is preceded by the further step of:

and cleaning the lubricant tank, adding the lubricant, pressurizing and sealing the lubricant tank, and ensuring the pressure in the lubricant to be constant.

Technical Field

The invention relates to the technical field of hot extrusion, in particular to an automatic spraying device and a spraying method for a hot extrusion lubricant.

Background

Extrusion is a more precise processing method developed on the basis of forging processing, the processing conditions are more severe than forging processing, and particularly, high continuous extrusion with large deformation has higher requirements on a lubricant. By adopting extrusion lubrication, the friction force between the extrusion material and the extrusion die can be reduced, the non-uniformity of metal flow can be reduced, the generation of cracks can be prevented or reduced, and the extrusion pressure can be greatly reduced. In the existing extrusion process, emulsion lubricants such as graphite and the like are mostly dipped by a special tool manually and coated on the surfaces of a die and an extrusion workpiece before extrusion production.

This lubricant application has the following problems:

1. the proportion of the lubricant is difficult to control, because all manual control is adopted, the lubricant needs to be manually dipped in a lubricant storage barrel which is prepared in advance every time for coating, then the coating is carried out, the proportion of raw materials in the lubricant storage barrel is difficult, the proportion of the lubricant, water and the like changes after the first proportioning is finished and a period of production is carried out, the concentration of the lubricant is difficult to detect, the concentration of the lubricant is too high or too low, and the concentration of the lubricant cannot reach the concentration required by the original design in the using process.

2. The artificial dipping lubricant is unevenly coated in the inner cavity of the die, and the dipping auxiliary tool is generally applied to the inner cavity of the die after artificial dipping, the length of the inner cavity of the die is about 300mm-600mm, so that the unevenness is inevitably caused in the deep process, the thickness of the lubricant in the inner cavity of the die is uneven, and the function of the lubricant is difficult to be exerted in the extrusion process.

3. The manual coating is difficult to ensure the safety of personnel, equipment and the like, the temperature of an extruder die can reach 300-400 ℃ after working for a period of time, and the personnel stand right in front of the inner cavity of the die under the high-temperature condition and the uniformly scattered lubricant on the periphery of the die is easy to slip, so that the personnel can be scalded due to the slipping, and the existing cases that the personnel in the relevant extrusion industry are scalded in the lubricant coating process occur.

4. The manual dipping lubricant is coated on the tissues of the continuous production extrusion workpiece, the fixed time is difficult to realize, the time is long, the production system is difficult to become an automatic line, and the production takt can not be controlled.

5. The industrial lubricant has complex proportion, contains various chemical elements, is harmful to people, and causes occupational injury to related personnel in the industry due to long-term dipping and coating of the personnel.

6. For the extrusion industry, 3-4 extruders are generally needed for one set of production process, and each extruder needs 2 persons for coating graphite, so that the labor intensity is high and more persons are needed.

In conclusion, the lubricant plays a decisive role in the extrusion effect in the high-temperature extrusion process, but how to coat the lubricant, particularly how to coat the lubricant uniformly, effectively and safely in the inner cavity of the die, has long been a technical problem to be solved urgently by technical staff in the extrusion industry.

Disclosure of Invention

Therefore, the invention aims to provide an automatic hot extrusion lubricant spraying device and a spraying method, which can uniformly, effectively and safely apply lubricant to an inner cavity of a die.

The invention provides an automatic spraying device for a hot extrusion lubricant, which comprises: the device comprises a lifting cylinder, a translation base, a translation cylinder, a nozzle connecting base, a nozzle and a controller; the translation base is connected to an output shaft of the lifting cylinder in a lifting manner, the nozzle is fixedly connected to the nozzle connecting base, the nozzle connecting base is telescopically connected to the output shaft of the translation cylinder, and the translation cylinder is fixedly connected to the translation base; the nozzle is connected with a compressed air pipeline and a lubricant emulsion pipeline through an electromagnetic valve, and the controller is in control connection with the lifting cylinder, the translation cylinder and the electromagnetic valve. Under the control of the controller, the lifting cylinder drives the nozzle to move up and down, so that the nozzle automatically descends after the work is finished, and the collision with a workpiece in the extruder is avoided; the translation cylinder drives the nozzle to move horizontally so as to complete the actions of removing impurities and spraying lubricant on the inner cavity of the die. The whole process is automatically finished, labor is saved, the working efficiency is greatly improved, the temperature of the inner cavity of the die is guaranteed, and the spraying effect of the lubricant is improved.

Further, the lower extreme of lift cylinder is connected with PMKD, the upper end of lift cylinder is connected with the lift base, the lift base with still be connected with the lifter between the PMKD, the output shaft of lift cylinder passes the lift base with the translation base links to each other, the extension rod of lifter pass the lift base with the translation base links to each other.

Further, the lifting rods are provided with two lifting rods, and the two lifting rods are symmetrically arranged on two sides of the lifting cylinder relative to the lifting cylinder.

Further, still include: a lubricant tank in communication with the lubricant emulsion conduit; and a stirring device is arranged in the lubricant tank.

Further, the stirring device comprises a speed reducing motor and a stirring blade, and the speed reducing motor is in driving connection with the stirring blade.

Further, the upper end of the lubricant tank is provided with a feed inlet, and the feed inlet is sealed by adopting a framework oil seal and a fluororubber O-shaped ring.

The invention also provides an automatic spraying method of the hot extrusion lubricant, which comprises the following steps:

after one-time work of an extruder is finished, starting a lifting cylinder, and lifting a nozzle to be consistent with the center height of a mold inner cavity of the extruder;

step two, the electromagnetic valve is switched to be communicated with a compressed air pipeline, so that compressed air is sprayed out of the nozzle, meanwhile, the translation cylinder is started, the nozzle is driven to translate and enter a die cavity of the extruder, and impurities such as residual iron sheets in the die cavity are cleaned;

step three, after the translation cylinder is stretched out, the original road returns, and a nozzle keeps spraying compressed air in the returning process so as to clean impurities such as iron sheets and the like;

after cleaning is finished, the electromagnetic valve is switched to be communicated with a lubricant emulsion pipeline, so that the nozzle sprays the lubricant, and meanwhile, the translation cylinder is started to drive the nozzle to translate into the inner cavity of the die of the extruder, so that the lubricant is uniformly sprayed on the inner wall of the inner cavity of the die;

and step five, after the spraying is finished, the translation cylinder and the lifting cylinder both return, and one working cycle is finished.

Further, the first step is also preceded by: and cleaning the lubricant tank, adding the lubricant, pressurizing and sealing the lubricant tank, and ensuring the pressure in the lubricant to be constant.

Additional aspects and advantages of the invention 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 invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a block diagram showing an automatic hot extrusion lubricant spraying apparatus;

FIG. 2 is a schematic diagram of an automatic hot extrusion lubricant spray apparatus used with an extruder.

In the drawings are labeled:

1 lifting cylinder

2 fixed base plate

3 lifting base

4 lifting rod

5 translation base

6 translation cylinder

7 nozzle connecting base

8 spray nozzle

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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 "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of 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 considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An embodiment of the present invention provides an automatic spraying device for a hot extrusion lubricant, as shown in fig. 1, including: the device comprises a lifting cylinder 1, a translation base 5, a translation cylinder 6, a nozzle connecting base 7, a nozzle 8 and a controller; the translation base 5 is connected to an output shaft of the lifting cylinder 1 in a lifting manner, the nozzle 8 is fixedly connected to the nozzle connecting base 7, the nozzle connecting base 7 is telescopically connected to an output shaft of the translation cylinder 6, and the translation cylinder 6 is fixedly connected to the translation base 5; the nozzle 8 is connected with a compressed air pipeline and a lubricant emulsion pipeline through electromagnetic valves, and the controller is in control connection with the lifting cylinder 1, the translation cylinder 6 and the electromagnetic valves. Under the control of a controller, the lifting cylinder 1 drives the nozzle 8 to move up and down so as to ensure that the nozzle 8 automatically descends after the work is finished and avoid collision with a workpiece in an extruder; the translation cylinder 6 drives the nozzle 8 to move horizontally so as to complete the actions of removing impurities and spraying lubricant to the inner cavity of the mold. The whole process is automatically finished, labor is saved, the working efficiency is greatly improved, the temperature of the inner cavity of the die is guaranteed, and the spraying effect of the lubricant is improved.

Optionally, the lower extreme of lift cylinder 1 is connected with PMKD 2, the upper end of lift cylinder 1 is connected with lifting pedestal 3, lifting pedestal 3 with still be connected with lifter 4 between PMKD 2, the output shaft of lift cylinder 1 passes lifting pedestal 3 with translation base 5 links to each other, the extension bar of lifter 4 passes lifting pedestal 3 with translation base 5 links to each other. Through PMKD 2, lifting pedestal 3 and lifter 4, play the guide effect to translation 5 up-and-down motion, be favorable to the stability of the motion of guarantee nozzle 8, improve the precision of motion. Preferably, the two lifting rods 4 are symmetrically arranged on both sides of the lifting cylinder 1 with respect to the lifting cylinder 1.

In one aspect of the embodiments of the present invention, further comprising: a lubricant tank in communication with the lubricant emulsion conduit; and a stirring device is arranged in the lubricant tank. The stirring device comprises a speed reducing motor and stirring blades, and the speed reducing motor is in driving connection with the stirring blades. In a specific embodiment, the stirring blade has 4 blades, the helix angle is 15 degrees, and the output speed is 15 revolutions/min in normal operation.

Preferably, the upper end of the lubricant tank is provided with a feed inlet, and the feed inlet is sealed by adopting a framework oil seal and a fluororubber O-shaped ring. In actual measurement experiments, the sealing effect can keep the pressure in the tank at 1.3mpa, and the pressure is not released after 24 hours. In general, the internal pressure of the lubricant tank may be set to 0.8 MPa.

Referring to fig. 2, a block diagram of an automatic hot extrusion lubricant applicator for use with an extruder is shown. The embodiment of the invention also provides an automatic spraying method of the hot extrusion lubricant, which comprises the following steps:

after one-time work of an extruder is finished, starting a lifting cylinder, and lifting a nozzle to be consistent with the center height of a mold inner cavity of the extruder;

step two, the electromagnetic valve is switched to be communicated with a compressed air pipeline, so that compressed air is sprayed out of the nozzle, meanwhile, the translation cylinder is started, the nozzle is driven to translate and enter a die cavity of the extruder, and impurities such as residual iron sheets in the die cavity are cleaned;

step three, after the translation cylinder is stretched out, the original road returns, and a nozzle keeps spraying compressed air in the returning process so as to clean impurities such as iron sheets and the like;

after cleaning is finished, the electromagnetic valve is switched to be communicated with a lubricant emulsion pipeline, so that the nozzle sprays the lubricant, and meanwhile, the translation cylinder is started to drive the nozzle to translate into the inner cavity of the die of the extruder, so that the lubricant is uniformly sprayed on the inner wall of the inner cavity of the die;

and step five, after the spraying is finished, the translation cylinder and the lifting cylinder both return, and one working cycle is finished.

Further, the first step is also preceded by: and cleaning the lubricant tank, adding the lubricant, pressurizing and sealing the lubricant tank, and ensuring the pressure in the lubricant to be constant. In a specific embodiment, the pressure in the compressed air line and the lubricant emulsion line is 0.8 MPa.

In conclusion, the technical scheme of the application has the following advantages:

1. the total time of automatic spraying is short, and the production efficiency is greatly improved.

2. The lubricant is sprayed more uniformly, so that the resistance in the extrusion process is smaller, and the forming is more facilitated.

3. The automatic spraying program is not needed to be modified after being fixed, and the processing, operation, control and use are more convenient.

4. The spraying amount can be accurately controlled, the scattering of the lubricant is effectively inhibited, and the environment is ensured not to be polluted.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.