Centrifugal device for casting

Abstract

The invention relates to the field of oil mist separation, and particularly discloses a centrifugal device for casting. Casting the centrifugal machine; the air purifying mechanism is arranged on the support, located above the casting centrifugal machine and used for purifying gas generated during casting; the box body is provided with a separation cavity; the centrifugal fan is arranged in the separation cavity; the decontamination filter screen is arranged in the separation cavity in the first direction; the oil mist separation screen is arranged between the centrifugal fan and the decontamination filter screen in the first direction; the cleaning bin is provided with a cleaning cavity for accommodating the decontamination filter screen; the cleaning assembly is arranged in the cleaning bin to clean the decontamination filter screen; the box body is provided with an air inlet and an air outlet which are communicated with the separation cavity in the first direction; at least two decontamination filter screen groups are arranged in the first direction; an extractor in the cleaning bin is used for alternately extracting the decontamination filter screen into the cleaning cavity; the centrifugal device for casting has the beneficial effects that the casting efficiency can be improved by improving the mode of purifying waste gas generated during casting, and the machining environment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of oil mist separation, in particular to a centrifugal device for casting. BACKGROUND

[0002] Centrifugal casting is a method of forming tubular or hollow cylindrical products by using centrifugal force. For the casting industry, traditional round cakes, cylinders or relatively complex structures, such as electric rice cooker heating plates, electric pressure cooker heating plates, polishing wheel base materials, etc., often use centrifugal casting method for production. In the conventional casting process, a large amount of harmful gas is generated each time the casting is performed; the current countermeasures are basically to strengthen the ventilation system (such as local exhaust, centralized purification), use a gas mask, regularly monitor the gas concentration, and optimize the process to reduce the release of harmful substances; but after the ventilation system works for a long time, the filter screen will accumulate a lot of impurities; the existing solution is to disassemble and clean the filter screen every certain period of time; However, since the ventilation system is basically installed above the casting centrifuge, it is troublesome and dangerous to disassemble; therefore, it is often necessary to stop the casting and then maintain the ventilation system during production; thereby reducing the production efficiency and increasing the maintenance cost; Therefore, it is necessary to design a filter screen for automatically cleaning the ventilation system without stopping to improve the working efficiency of the casting centrifuge. SUMMARY

[0003] In order to improve the above problems, the present application provides a centrifugal device for casting which can clean the filter screen without stopping.

[0004] The centrifugal device for casting provided by the present application comprises: a support constructed by a plurality of metal rods; a casting centrifuge disposed on the support for realizing casting operation; a clean air mechanism disposed above the casting centrifuge on the support for purifying the gas generated during casting; The clean air mechanism comprises: a box body having a separation cavity; a centrifugal fan disposed in the separation cavity; a dirt removal filter screen disposed in the separation cavity along a first direction; an oil mist separation screen disposed between the centrifugal fan and the dirt removal filter screen along the first direction; a cleaning bin having a cleaning cavity for accommodating the dirt removal filter screen; a cleaning assembly disposed in the cleaning bin to clean the dirt removal filter screen; The box is provided with an air inlet and an air outlet communicated with the separation chamber along a first direction; the dirt-removing filter screen group is provided with at least two along the first direction; and the extractor in the cleaning chamber is used to alternately extract the dirt-removing filter screens into the cleaning chamber.

[0005] The dirt-removing filter screen is provided to preliminarily filter the oil mist gas entering the separation chamber, so that solid impurities and other particulate matters are filtered, and only the oil mist gas is obtained; the centrifugal force generated by the centrifugal fan is used to separate the oil and the gas; the extractor is used to alternately extract the two dirt-removing filter screens into the cleaning chamber for cleaning; thus, the dirt-removing filter screen can be cleaned without stopping the machine, the filtering efficiency of the dirt-removing filter screen is ensured, the maintenance time of the equipment is prolonged, and the work efficiency is improved.

[0006] Optionally, a support is arranged in the separation chamber and used to support the dirt-removing filter screen. A guide rail is arranged on the cleaning chamber and used to guide the movement of the dirt-removing filter screen into the cleaning chamber. The extractor is movably arranged on the guide rail. A clamping jaw is arranged on the extractor and fixedly connected with the two sides of the dirt-removing filter screen.

[0007] Through the arrangement of the above scheme, the guide rail can guide the movement track of the dirt-removing filter screen, so that the dirt-removing filter screen stably enters the cleaning chamber during cleaning; and the clamping jaw can always clamp the dirt-removing filter screen.

[0008] Optionally, a loading member is further arranged and used to load the dirt-removing filter screen. The loading member forms a loading part used to fix the dirt-removing filter screen.

[0009] Optionally, a first electromagnet is arranged on the inner wall of the support. A second electromagnet is arranged on the inner wall of the guide rail.

[0010] Optionally, a plurality of loading members are arranged in each support. An elastic member is arranged between the loading members. The elastic member always gives the adjacent two loading members with an elastic force away from each other.

[0011] Optionally, a support seat is arranged on the inner wall of the cleaning chamber and used to support the loading member. The support seat forms a support groove used to support the loading member in the cleaning chamber. The guide rail is fixedly arranged on the inner side wall of the support groove.

[0012] Optionally, the support seat forms a connecting part connected with the support. The clamping jaw is located in the connecting part and connected with the extractor through a pull rope.

[0013] Optionally, along the first direction, the spray head is distributed on the surface away from the connecting part.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: 1、Firstly, through the setting of the dirt removal filter screen, the oil mist gas entering the separation cavity is preliminarily filtered to filter out solid impurities and other particulate matters, and only gas containing oil mist is obtained; then the oil and gas are separated by the centrifugal force generated by the centrifugal fan; the extractor is arranged to alternately extract the two dirt removal filter screens to the cleaning bin for cleaning; in this way, the dirt removal filter screen can be cleaned without stopping the machine, so as to ensure the filtering efficiency of the dirt removal filter screen; at the same time, the maintenance time of the equipment can be prolonged, and the work efficiency can be improved; through the self-cleaning function of the clean air mechanism, the time of high-efficiency clean air can be greatly prolonged, so that the working environment is better; further, the working time of casting is improved, and the work efficiency is improved.

[0015] 2、Through the setting of the magnetorheological fluid and the first electromagnet and the second electromagnet, the shape of the support can be changed, so that the dirt removal filter screen has higher plasticity; because 3、By arranging at least two dirt removal filter screens, they can be alternately cleaned, and after cleaning, they can also perform filtering function at the same time; 4、Through the setting of the vibration motor, the vibration cleaning of the dirt removal filter screen can be realized, so as to provide cleaning efficiency and reduce cleaning time, so as to ensure that the two dirt removal filter screens are in working state for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 is another schematic diagram of the overall structure of the embodiment of the present application; Figure 3 is a schematic diagram of the overall structure of the embodiment of the present application; Figure 4 is a schematic diagram of the structure of the cleaning bin and the dirt removal filter screen of the embodiment of the present application; Figure 5 is a schematic diagram of the claw of the embodiment of the present application; Figure 6 is a schematic diagram of the loading member and the dirt removal filter screen of the embodiment of the present application; Figure 7 is a schematic diagram of the disassembly and assembly of the loading member and the dirt removal filter screen of the embodiment of the present application; Figure 8 is a schematic diagram of the support and the first electromagnet of the embodiment of the present application; Figure 9 is a schematic diagram of the support seat and the second electromagnet of the embodiment of the present application; Figure 10 is a schematic diagram of the cleaning assembly of the embodiment of the present application; Figure 11 is a schematic diagram of the inside space of the loading member in the embodiment.

[0017] The reference signs: 101, support; 102, casting centrifuge; 100, clean air mechanism; 1, box body; 2, centrifugal fan; 3, dirt filter screen; 4, oil mist separation screen; 5, cleaning bin; 6, separation cavity; L, first direction; 7, air inlet; 8, air outlet; 9, collector; 10, extractor; 11, support; 12, loading member; 13, loading part; 14, support seat; 15, support groove; 16, connecting part; 17, guide rail; 18, clamping jaw; 19, pull rope; 21, rotating shaft; 22, auxiliary jaw; 23, first electromagnet; 24, second electromagnet; 25, spray head; 26, vibration motor. DETAILED DESCRIPTION

[0018] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the scope of protection of the present disclosure.

[0019] In addition, it should be further noted that, for the convenience of description, only the parts related to the present application are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0020] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.

[0021] It should be noted that the modification of "one" or "multiple" in the present disclosure is illustrative rather than limiting, and those skilled in the art should understand that, unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0022] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0023] Reference Figures 1 to 11The embodiment of the application discloses a centrifugal device for casting, which comprises a support 101, a casting centrifuge 102 and a clean air mechanism 100, wherein the support 101 is defined as a metal frame by a plurality of metal rods for supporting the casting centrifuge 102; the support 101 is constructed according to the actual assembly form of the centrifuge 101, and the application does not involve improvement of the support 101, thus the application will not be described in detail; the casting centrifuge 102 is an existing technology for casting available on the market and is placed on the support 102; preferably, sealing plates are also installed between the supports 102 to close the working area of the casting centrifuge 102; the clean air mechanism 100 is arranged on the support 101 above the casting centrifuge 102; the casting centrifuge 102 is provided with a gas collecting box 103 for collecting waste gas generated during casting, and a gas pipe 104 connected with the clean air mechanism 100 is installed on the gas collecting box 103 to conduct the waste gas to the clean air mechanism 100 for purification treatment.

[0024] Through the arrangement of the above scheme, the spread of waste gas to other areas of the workshop during casting can be reduced, and the comfort of the working environment is improved.

[0025] Specifically, the clean air mechanism 100 comprises a box body 1, a centrifugal fan 2, a dirt removal filter screen 3, an oil mist separation screen 4, a cleaning bin 5 and a cleaning assembly; the box body 1 is composed of a metal plate and has a rectangular body in external contour, comprising a box wall and a separation cavity 6 defined by the box wall; wherein the box wall is provided with an air inlet 7 and an air outlet 8 in communication with the separation cavity 6 along a first direction L; the first direction L is a direction defined by a first straight line and is also an oil mist flow direction; specifically, the centrifugal fan 2 is installed in the separation cavity 6 close to the air outlet 8; after the centrifugal fan 2 is started, a negative pressure is formed in the separation cavity 6 to make the oil mist move along the first direction L to the air outlet 8 after entering the separation cavity 6. Figure 3 The dirt removal filter screen 3 and the oil mist separation screen 4 are arranged in the separation cavity 6 along the first direction L; wherein the dirt removal filter screen 3 can preliminarily filter impurities in the oil mist; then the centrifugal force generated by the centrifugal fan 2 causes the oil and air to separate when passing through the oil mist separation screen 4; the oil is intercepted by the oil separation screen and flows to the bottom of the separation cavity 6; the bottom of the separation cavity 6 is provided with a collector 9 for receiving the oil.

[0026] ​Specifically, the cleaning bin 5 is fixedly arranged on the box body 1 and located above the dirt removal filter screen 3. The fixing mode can be bolt fixing or welding, and the application does not improve the fixing mode, so no detailed description is given. The cleaning bin 5 is provided with a cleaning assembly to clean the dirt removal filter screen 3. More specifically, the dirt removal filter screen 3 is arranged in at least two along the first direction L, and two are taken as an example in the embodiment of the application. The extractor 10 is movably arranged in the cleaning bin 5, and the extractor 10 can alternately extract the two filter screens into the cleaning cavity for cleaning. In this way, the dirt removal filter screen 3 can be cleaned without stopping the machine and disassembling the box body 1, thereby improving the operation efficiency and prolonging the maintenance cycle.

[0027] In a more specific embodiment, the separation cavity 6 is provided with two supports 11 corresponding to the dirt removal filter screen 3 along the first direction L. The centrifugal casting device further comprises a loading member 12 for loading the dirt removal filter screen 3. The loading member 12 is made of a flexible material, such as silicone or rubber, which can deform under external force and recover to the original shape after the external force disappears. The external contour is configured as a rectangular frame. The inner wall of the loading member 12 is concave, and the concave part extends around the periphery of the rectangular contour to form a loading part 13. The side edges of the dirt removal filter screen 3 are embedded in the loading part 13 and are integrally formed with the loading member 12 by thermal plasticity. The dirt removal filter screen 3 is made of spring steel with high elasticity, which can bend under external force and recover to the original state after the external force disappears. Specifically, the inner wall of the cleaning bin 5 is provided with a support seat 14 for supporting the loading member 12, and the support seat 14 forms a support groove 15. The support seat 14 forms a connecting part 16 connected with the support 11. The connecting part 16 is in the shape of a circular arc, which can guide the movement of the dirt removal filter screen 3 and the loading member 12 into the support groove 15. Specifically, the inner wall of the support groove 15 is provided with a guide rail 17. The guide rail 17 is an electric sliding rail that can be directly purchased on the market. The extractor 10 automatically slides on the guide rail 17 along the first direction L by an electric wheel. The connecting part 16 is provided with a clamping jaw 18, which is fixedly connected with the two sides of the dirt removal filter screen 3. The clamping jaw 18 is connected with the extractor 10 by a pull rope 19. Through the above scheme, when cleaning is needed, the extractor 10 is started to move. Then the clamping jaw 18 is pulled to drive the loading member 12 to move along the extension direction of the connecting part 16 and into the support groove 15. The cleaning operation is performed. After cleaning, the extractor 10 is started again to push the support into the support 11.

[0028] In another more specific embodiment, a plurality of dirt-removing screens 3 are arranged in the bracket 11 to improve the effect of preliminary filtration; the elastic member arranged on the adjacent two loading members 12 is a spring, which can give the adjacent two loading members 12 an elastic force away from each other; wherein the claw 18 is composed of a rotating shaft 21 and two sub-claws 22 rotatably arranged on the rotating shaft 21, and the two sub-claws 22 are respectively connected with the two loading members 12 farthest away from the two sides of the bracket 11; when the claw 18 moves upward, the two sub-claws 22 are close to each other to make the plurality of loading members 12 close to each other to form a stacked state. Specifically, the loading member 12 has a magneto-rheological fluid therein, and in the initial state, the magneto-rheological fluid is a Newtonian fluid with small viscosity and large flow performance, so that the loading member 12 is easy to deform, so that the plurality of loading members 12 are thinner after being stacked, and the dirt-removing screen 3 can be bent more easily when passing through the connecting portion 16; the inner wall of the bracket 11 is provided with a first electromagnet 23, which is uniformly arranged along the outer contour of the bracket 11; after being energized, the magnetism can make the magneto-rheological fluid change from a Newtonian fluid with small viscosity to a Bingham fluid with high viscosity and low flow performance, and the viscosity of the magneto-rheological fluid has a corresponding relationship with the magnetic flux; it can be understood that, in the working state; the loading member 12 is provided with a solid magneto-rheological fluid, so that the strength of the loading member 12 is higher, and the oil mist can be deformed without being affected by the wind when passing through the dirt-removing screen 3, thereby improving the stability of the filtration.

[0029] Specifically, the loading groove is provided with a second electromagnet 24; after the loading member 12 completely enters the mounting groove, the second electromagnet 24 is energized to generate magnetism; at this time, the loading member 12 is hardened, and then the loading member 12 is separated from each other under the action of the elastic member, so that the gap between the dirt-removing screens 3 is larger during cleaning, thereby improving the cleaning effect.

[0030] In the embodiment, the support seat 14 and the extractor 10 are both provided with two to correspond to the number of brackets 11.

[0031] In a more specific embodiment, the cleaning assembly comprises: a spray head 25 and a vibration motor 26; wherein the spray head 25 is arranged on the inner upper wall of the cleaning bin 5 and is uniformly distributed in the first direction L; the vibration motor 26 is arranged on the support seat 14 to give the loading member 12 high-frequency vibration; the spray head 25 is connected with the water tank outside through a water pipe to spray water to the dirt-removing screen 3 for cleaning; during the cleaning process, the vibration motor 26 is started to vibrate the loading member 12, which can effectively improve the cleaning ability; the above-mentioned scheme can improve the cleaning efficiency and shorten the cleaning time; so that the equipment can be in a state of filtering by two groups of dirt-removing screens 3 at the same time for a long time, thereby improving the filtering effect; Specifically, along the first direction L, the nozzles 25 are distributed on the surface away from the connecting portion 16; thus, when cleaning, the backflow of the cleaning water into the connecting portion 16 can be effectively avoided; more specifically, the cleaning bin 5 is inclined along the first direction L, which can further prevent the backflow of the water.

[0032] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection" and the like should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is based on the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A centrifugal device for casting, comprising: a support frame made of a plurality of metal rods; a casting centrifuge arranged on the support frame for performing a casting operation; a gas purification mechanism arranged on the support frame above the casting centrifuge for purifying gas generated during casting; characterized in that the gas purification mechanism comprises: a box having a separation chamber; a centrifugal fan arranged in the separation chamber; a dirt filter screen arranged in the separation chamber along a first direction; an oil mist separation screen arranged between the centrifugal fan and the dirt filter screen along the first direction; a cleaning bin having a cleaning chamber for accommodating the dirt filter screen; a cleaning assembly arranged in the cleaning bin for cleaning the dirt filter screen; wherein the box is provided with an air inlet and an air outlet along the first direction and in communication with the separation chamber; the dirt filter screen group is arranged along the first direction and has at least two; and the extractor in the cleaning bin extracts the dirt filter screen into the cleaning chamber alternately. 2.The centrifugal device for casting according to claim 1, characterized in that: a support frame is arranged in the separation chamber for supporting the dirt filter screen; a guide rail is arranged on the cleaning bin for guiding the movement of the dirt filter screen into the cleaning chamber; the extractor is movably arranged on the guide rail; a claw is arranged on the extractor and fixedly connected to both sides of the dirt filter screen. 3.The centrifugal device for casting according to claim 2, characterized in that: it further comprises a loading member for loading the dirt filter screen; the loading member forms a loading part for fixing the dirt filter screen; wherein the loading member is a rectangular frame made of a flexible material and has an external contour consistent with the side edge contour of the dirt filter screen; and has a magnetorheological fluid in the inside. 4.The centrifugal device for casting according to claim 2, characterized in that: a first electromagnet is arranged on the inner wall of the support frame; a second electromagnet is arranged on the inner wall of the guide rail. 5.The centrifugal device for casting according to claim 3, characterized in that: a plurality of loading members are arranged in each support frame; a resilient member is arranged between the loading members; wherein the resilient member always gives the adjacent two loading members a resilient force away from each other. 6.The centrifugal device for casting according to claim 2, characterized in that: a support seat is arranged on the inner wall of the cleaning bin for supporting the loading member; the support seat forms a support groove for supporting the loading member in the cleaning bin; the guide rail is fixedly arranged on the inner side wall of the support groove. 7.The centrifugal device for casting according to claim 6, characterized in that: the support seat forms a connecting part connected with the support frame; the claw is located in the connecting part and connected with the extractor through a pull rope. 8.The centrifugal device for casting according to claim 7, characterized in that: the claw comprises a rotating shaft and two auxiliary claws; the rotating shaft is connected with the extractor through a pull rope; the two auxiliary claws are connected with the rotating shaft through a torsional spring; wherein the auxiliary claws form an inclined surface. 9.The centrifugal device for casting according to claim 8, characterized in that: the cleaning assembly comprises a spray head and a vibration motor. The spray head is arranged on the inner upper wall of the cleaning bin and is uniformly distributed along a first direction.

10. A centrifugal casting device according to claim 9, wherein: Along the first direction, the spray head is distributed on the surface away from the connecting portion.

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