CN113275143A

CN113275143A - Surface static oil attaching equipment for part machining die

Info

Publication number: CN113275143A
Application number: CN202110832087.9A
Authority: CN
Inventors: 何佳楠
Original assignee: Nantong Suoxing Fluid Equipment Co ltd
Current assignee: Nantong Suoxing Fluid Equipment Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-08-20
Anticipated expiration: 2041-07-22
Also published as: CN113275143B

Abstract

The invention discloses a part processing die surface electrostatic oil attaching device which comprises a machine body, wherein an electrostatic generator is fixedly installed inside the machine body, an oil attaching groove is formed in the upper surface of the machine body, an electrostatic oil attaching mechanism is installed in the oil attaching groove, an electrostatic impurity removing mechanism is installed on the outer side wall of the machine body, the electrostatic oil attaching mechanism comprises an oil box, a plurality of porous electrode nets are installed on the inner bottom wall of the oil box at equal intervals, and the plurality of porous electrode nets are connected with the electrostatic generator. Through utilizing the principle of electrostatic absorption and the relation of field intensity and interval, realize that the contactless of mould working face attaches oil, neither can pollute the lubricating oil in the oil box, also can not lead to a large amount of lubricating oil to adhere to extravagantly, realize the reposition of redundant personnel of impurity and lubricating oil through the electrostatic separation effect, guarantee the quality that lubricating oil used, waste volume when reducing the blowdown simultaneously, environmental protection more.

Description

Surface static oil attaching equipment for part machining die

Technical Field

The invention relates to the field of mold processing production, in particular to a part processing mold surface electrostatic oil-attaching device.

Background

Present mould surface attaches oil and adopts the mode of soaking usually, evenly put into the container that holds lubricating oil one by one with the mould of production promptly and soak, then it attaches oil to take out the realization one by one with the mould, can prevent rust on the working face and reduce working face frictional force, reduce the surface damage to the work piece promptly, nevertheless soak in impurity such as dust on the mould that the mould can make gets into in the lubricating oil, lead to lubricating oil to be contaminated gradually, use the accumulation back for a long time, the quality of lubricating oil sharply descends, can't provide effectual lubricated rust-resistant ability, and the lubricating oil that pollutes need carry out filtration equipment and filter the use, nevertheless filter and can cause the filter core loss, increase the consumptive material, environmental protection not enough, and more lubricating oil and impurity fusion are filtered and are leaded to a large amount of lubricating oil extravagant.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, lubricating oil is easily polluted due to the fact that oil is attached by contact soaking, quality is affected, a large amount of consumables are consumed for polluted oil filtration, and more lubricating oil is wasted.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a part machining mould surface static attaches oily equipment, includes the organism, the inside fixed mounting of organism has electrostatic generator, the upper surface of organism has been seted up and has been attached the oil groove, it attaches oily mechanism to install static in the oil groove, install static edulcoration mechanism on the lateral wall of organism, static attaches oily mechanism and includes the oil box, a plurality of porous electrode net are installed to the equidistance on the inner diapire of oil box, a plurality of porous electrode net connects electrostatic generator, the upper end cover of oil box is equipped with first plate electrode, the second plate electrode is installed to the diapire of oil box, the second plate electrode is fixed on the cell bottom wall that attaches the oil groove, the lateral wall symmetry that the oil groove attached has seted up two guipure mouths, two mould mouths have been seted up to the symmetry on the lateral wall of oil box, the transportation guipure passes guipure mouth and level and passes two mould mouths along the lower edge of two mould mouths, the electrostatic generator is respectively connected with the first electrode plate and the second electrode plate;

the metal mold enters between the first electrode plate and the second electrode plate through the conveying net belt, the metal mold is induced by the electric field of the first electrode plate and the electric field of the second electrode plate, the lower surface of the metal mold is the same as the lower surface of the first electrode plate in electric charge type, the metal mold has the capacity of adsorbing lubricating oil, and the distance between the metal mold and the second electrode plate is smaller than the distance between the first electrode plate and the second electrode plate, the field intensity between the metal mold and the second electrode plate is increased, the adsorption force of the metal mold on the charged lubricating oil is increased, and the surface lubricating oil can be adsorbed on the lower working surface of the metal mold.

Further, install transport mechanism on the organism, transport mechanism includes that the symmetry rotates four transportation rollers of installing in the organism, four install the transportation guipure jointly on the transportation roller, the outside of organism is installed the transportation motor by last, the bent axle of transportation motor and the roller fixed connection of one of them transportation roller.

Further, static edulcoration mechanism is including fixing the edulcoration awl bucket on the organism lateral wall, the upper end cover of edulcoration awl bucket is equipped with the third plate electrode, the lower extreme outer wall cover of edulcoration awl bucket is established and is fixed with the fourth plate electrode, the static generator is all connected to third plate electrode and fourth plate electrode.

Further, install oil-well pump and oil extraction pump on the inside wall of organism respectively, install first oil pipe and second oil pipe on the oil-well pump respectively, install the diffusion cover on the first oil pipe, install third oil pipe and fourth oil pipe on the oil extraction pump respectively, install on the third oil pipe and gather and flow the cover.

Furthermore, the diffusion cover and the flow gathering cover are respectively inserted into two sides of the oil box, the second oil pipe and the fourth oil pipe are respectively inserted into the side wall of the impurity removal conical barrel, the joint of the second oil pipe and the impurity removal conical barrel is lower than the joint of the fourth oil pipe and the impurity removal conical barrel, an oil supplementing pipe is inserted into the outer side wall of the impurity removal conical barrel, and the joint of the oil supplementing pipe and the impurity removal conical barrel is located between the second oil pipe and the fourth oil pipe.

Further, the oil drain port has been seted up to the lower extreme of edulcoration awl bucket, be fixed with controllable telescopic link on the lateral wall of organism, the canned paragraph of controllable telescopic link is sealed to be inserted and is established on the third plate electrode and extend to the below of third plate electrode, the movable segment of controllable telescopic link extends to the top of oil drain port and installs the sealing piston post, the lower extreme of sealing piston post slides and inserts and establish in the oil drain port.

Furthermore, the movable section of the controllable telescopic rod is slidably sleeved with a leakage-proof sealing plate, a leakage-proof spring is jointly installed between the lower bottom wall of the leakage-proof sealing plate and the upper surface of the sealing piston column, and the leakage-proof spring is sleeved on the movable section of the controllable telescopic rod.

Has the advantages that: through utilizing the principle of electrostatic absorption and the relation of field intensity and interval, realize that the contactless of mould working face attaches oil, neither can pollute the lubricating oil in the oil box, also can not lead to a large amount of lubricating oil to adhere to extravagantly, realize the reposition of redundant personnel of impurity and lubricating oil through the electrostatic separation effect, guarantee the quality that lubricating oil used, waste volume when reducing the blowdown simultaneously, environmental protection more.

Drawings

FIG. 1 is a schematic structural diagram of an electrostatic oil-attaching device for a surface of a part processing mold according to the present invention;

FIG. 2 is a partially cut-away schematic view of an electrostatic oil-attaching mechanism of the electrostatic oil-attaching device for the surface of a part-processing mold according to the present invention;

FIG. 3 is a partially cut-away schematic view of a machine body of the electrostatic oil-attaching device for the surface of the part processing mold according to the present invention;

FIG. 4 is a schematic sectional view of an impurity removing cone barrel of the electrostatic oil-attaching equipment for the surface of a part processing mold according to the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 3;

FIG. 6 is an enlarged view of FIG. 3 at B;

FIG. 7 is an enlarged view at C of FIG. 4;

fig. 8 illustrates the operation of the electrostatic oil-attaching device for the surface of the part processing mold according to the present invention.

In the figure: 1 machine body, 11 oil attaching grooves, 12 net belt ports, 13 electrostatic generators, 2 conveying mechanisms, 21 conveying rollers, 22 conveying motors, 23 conveying net belts, 3 electrostatic oil attaching mechanisms, 31 oil boxes, 32 mold ports, 33 first electrode plates, 34 second electrode plates, 35 porous electrode nets, 4 electrostatic impurity removal mechanisms, 41 impurity removal conical barrels, 42 third electrode plates, 43 fourth electrode plates, 44 oil supplementing pipes, 45 controllable telescopic rods, 46 leakage-proof sealing plates, 47 leakage-proof springs, 48 sealing piston columns, 49 oil discharge ports, 5 oil-well pumps, 51 first oil pipes, 52 second oil pipes, 53 diffusion covers, 6 oil discharge pumps, 61 third oil pipes, 62 fourth oil pipes and 63 flow gathering covers.

Detailed Description

Referring to fig. 1, 2 and 3, a part processing mold surface electrostatic oil-attaching device includes a machine body 1, an electrostatic generator 13 is fixedly installed inside the machine body 1, an oil-attaching groove 11 is formed on the upper surface of the machine body 1, an electrostatic oil-attaching mechanism 3 is installed in the oil-attaching groove 11, an electrostatic impurity-removing mechanism 4 is installed on the outer side wall of the machine body 1, the electrostatic oil-attaching mechanism 3 includes an oil box 31, a plurality of porous electrode nets 35 are installed on the inner bottom wall of the oil box 31 at equal intervals, the plurality of porous electrode nets 35 are connected with the electrostatic generator 13, an upper end cover of the oil box 31 is provided with a first electrode plate 33, a second electrode plate 34 is installed on the bottom wall of the oil box 31, the second electrode plate 34 is fixed on the bottom wall of the oil-attaching groove 11, two mesh belt ports 12 are symmetrically formed on the side wall of the oil box 11, two mold ports 32 are symmetrically formed on the side wall of the oil box 31, a transportation mesh belt 23 passes through the mesh belt ports 12 and horizontally passes through the two mold ports 32 along the lower edges of the two mold ports 32, the electrostatic generator 13 is respectively connected with the first electrode plate 33 and the second electrode plate 34;

the electrostatic generator 13 is used for providing high-voltage static electricity to form an electrostatic field, the electrostatic oil attaching mechanism 3 is used for attaching the charged lubricating oil to the surface of the mold by utilizing electrostatic adsorption, the electrostatic impurity removing mechanism 4 is used for removing impurities in the lubricating oil by utilizing electrostatic separation, and the porous electrode mesh 35 is used for generating unipolar voltage through the electrostatic generator 13 so that the lubricating oil is ionized and charged;

the static generator 13 generates high-voltage static electricity on the first electrode plate 33 and the second electrode plate 34, so that the opposite surfaces of the first electrode plate 33 and the second electrode plate 34 are charged differently, the lubricating oil which is ionized and charged is attracted by the first electrode plate 33 and repelled by the second electrode plate 34, and has a tendency of moving upwards, and the lubricating oil cannot move upwards due to the adhesion force between the lubricating oil and gravity;

when the metal mold enters between the first electrode plate 33 and the second electrode plate 34 through the conveying mesh belt 23, the metal mold is induced by electric fields of the first electrode plate 33 and the second electrode plate 34, so that the lower surface of the metal mold is the same as the lower surface of the first electrode plate 33 in charge type, the metal mold has the capability of adsorbing lubricating oil, and the distance between the metal mold and the second electrode plate 34 is smaller than the distance between the first electrode plate 33 and the second electrode plate 34, so that the field intensity between the metal mold and the second electrode plate 34 is increased according to E = U/d, the adsorption force of the metal mold on the charged lubricating oil is increased, the surface lubricating oil can be adsorbed on the lower working surface of the metal mold, and the oil adsorption of the working surface of the metal mold is realized.

Referring to fig. 2 and 3, a transport mechanism 2 is mounted on a machine body 1, the transport mechanism 2 comprises four transport rollers 21 symmetrically and rotatably mounted in the machine body 1, a transport mesh belt 23 is mounted on the four transport rollers 21 together, a transport motor 22 is mounted on the outer side of the machine body 1, and a crankshaft of the transport motor 22 is fixedly connected with a roller shaft of one transport roller 21;

the transportation motor 22 rotates to enable the transportation net belt 23 to rotate through the transportation roller 21, so that the transportation net belt 23 can attach oil to a plurality of die working surfaces through the electrostatic oil attaching mechanism 3, continuous oil attaching work is achieved, direct contact between the oil and lubricating oil in the oil box 31 is reduced, and pollution to the lubricating oil is reduced.

Referring to fig. 3 and 4, the electrostatic impurity removing mechanism 4 includes an impurity removing conical barrel 41 fixed on the side wall of the machine body 1, an upper end cover of the impurity removing conical barrel 41 is provided with a third electrode plate 42, a lower end outer wall of the impurity removing conical barrel 41 is sleeved and fixed with a fourth electrode plate 43, and the third electrode plate 42 and the fourth electrode plate 43 are both connected with the electrostatic generator 13;

the third electrode plate 42 and the fourth electrode plate 43 form an electrostatic field through the electrostatic generator 13, so that the charged lubricant oil entering the impurity removing conical barrel 41 has a tendency of flowing upwards under the action of the electrostatic field.

Referring to fig. 3, 5 and 6, an oil-well pump 5 and an oil discharge pump 6 are respectively installed on the inner side wall of the machine body 1, a first oil pipe 51 and a second oil pipe 52 are respectively installed on the oil-well pump 5, a diffusion cover 53 is installed on the first oil pipe 51, a third oil pipe 61 and a fourth oil pipe 62 are respectively installed on the oil discharge pump 6, and a flow-gathering cover 63 is installed on the third oil pipe 61;

the diffusion cover 53 and the flow gathering cover 63 are respectively inserted at two sides of the oil box 31, the second oil pipe 52 and the fourth oil pipe 62 are respectively inserted on the side wall of the impurity removing conical barrel 41, the joint of the second oil pipe 52 and the impurity removing conical barrel 41 is lower than the joint of the fourth oil pipe 62 and the impurity removing conical barrel 41, the oil supplementing pipe 44 is inserted on the outer side wall of the impurity removing conical barrel 41, and the joint of the oil supplementing pipe 44 and the impurity removing conical barrel 41 is positioned between the second oil pipe 52 and the fourth oil pipe 62;

the oil well pump 5 pumps the upper layer lubricating oil of the impurity removal conical barrel 41 into the oil box 31 through the second oil pipe 52 and discharges the upper layer lubricating oil into the oil box 31 through the first oil pipe 51 and the diffusion cover 53, the oil discharge pump 6 pumps the lubricating oil in the oil box 31 into the lower layer of the impurity removal conical barrel 41 through the third oil pipe 61 and the flow gathering cover 63, the circulation of the lubricating oil is realized, and the smoothness of the lubricating oil circulation can be improved and the lubricating oil is prevented from overflowing through the bidirectional work of the oil well pump 5 and the oil discharge pump 6;

the electrostatic field formed by the third electrode plate 42 and the fourth electrode plate 43 makes the charged lubricant oil float upwards, and the dust mixed in the lubricant oil is inducted and sucked when being sucked, i.e. the charged lubricant oil makes the nearby dust generate inducted electricity to be adsorbed, and because the dust and the lubricant oil are insulated, the electrons can not be neutralized in a short time after the contact, the dust and the charged lubricant oil enter the impurity removing conical barrel 41, and the dust enters the impurity removing conical barrel 41, and is inducted and polarized by the electrostatic field formed by the third electrode plate 42 and the fourth electrode plate 43, the upper end of the dust is the same as the charge of the third electrode plate 42, the lower end is the same as the charge of the fourth electrode plate 43, and the charged lubricant oil is attracted and floated upwards by the third electrode plate 42, the kind of the charge of the charged lubricant oil is the same as the upper end of the dust, the floated charged lubricant oil has repulsive force to the dust, and the fourth electrode plate 43 has attractive force to the dust, the dust moves downward and collects.

Referring to fig. 4 and 7, an oil discharge port 49 is formed at the lower end of the impurity removing cone barrel 41, a controllable telescopic rod 45 is fixed on the outer side wall of the machine body 1, the fixed section of the controllable telescopic rod 45 is hermetically inserted on the third electrode plate 42 and extends to the lower part of the third electrode plate 42, the movable section of the controllable telescopic rod 45 extends to the upper part of the oil discharge port 49 and is provided with a sealing piston column 48, and the lower end of the sealing piston column 48 is slidably inserted in the oil discharge port 49;

receive electrostatic field effect and electrified lubricating oil repulsion, the dust gathering of downward removal is around sealed piston post 48, when controllable telescopic link 45 extension promotes sealed piston post 48 and moves down and open oil drain port 49, and edulcoration awl bucket 41 contains the lubricating oil of gathering impurity and is discharged, realizes the edulcoration function of lubricating oil, and the edulcoration is convenient, and no consumptive material loss, environmental protection more.

Referring to fig. 4 and 7, a leakage-proof sealing plate 46 is slidably sleeved on the movable section of the controllable telescopic rod 45, a leakage-proof spring 47 is jointly installed between the lower bottom wall of the leakage-proof sealing plate 46 and the upper surface of the sealing piston column 48, and the leakage-proof spring 47 is sleeved on the movable section of the controllable telescopic rod 45;

when controllable telescopic link 45 promoted the downward movement of sealing piston post 48, sealing piston post 48 passed through leak protection spring 47 pulling leak protection closing plate 46 and made its sealed bottom of edulcoration awl bucket 41, sealing piston post 48 continues to move down and opens oil drain port 49 and make the impurity greasy dirt discharge, and avoided the upper portion lubricating oil to continue to discharge, when controllable telescopic link 45 returns, sealing piston post 48 blocks up oil drain port 49 earlier, rethread leak protection spring 47 promotes leak protection closing plate 46 and opens the bottom of edulcoration awl bucket 41, continue gathering impurity, waste to lubricating oil when having reduced the blowdown.

Referring to fig. 8, the apparatus is started, the electrostatic generator 13 makes the first electrode plate 33 and the third electrode plate 42 positively charged and the second electrode plate 34 and the fourth electrode plate 43 negatively charged, and the lubricant in the oil cartridge 31 is negatively charged by the ionization of the porous electrode mesh 35, so that the negatively charged lubricant has a tendency to move upward.

The working surface of the metal mold is put down on the conveyer mesh belt 23, the conveyer motor 22 makes the conveyer mesh belt 23 move through the conveyer roller 21 and moves the metal mold into the oil box 31, the first electrode plate 33 and the second electrode plate 34 make the upper surface of the metal mold induce negative charges, the lower surface of the metal mold induces positive charges, the lower surface of the metal mold has attraction to the lubricating oil, the distance between the metal mold and the second electrode plate 34 is smaller than the distance between the first electrode plate 33 and the second electrode plate 34, so that the field intensity between the metal mold and the second electrode plate 34 is increased, the attraction to the negatively charged lubricating oil is increased, and the negatively charged lubricating oil is adsorbed on the lower surface of the metal mold.

The negatively charged lubricating oil adsorbs dust in the air through induction, so that the positive charge induction end of the dust is in contact with the negatively charged lubricating oil, electrons cannot be neutralized in a short time due to the insulation of the negatively charged lubricating oil and the dust, and the negatively charged lubricating oil and the dust are sucked by the flow gathering cover 63 and the third oil pipe 61 and are discharged into the impurity removal conical barrel 41 through the oil discharge pump 6 and the fourth oil pipe 62.

The third electrode plate 42 and the fourth electrode plate 43 make the upper end of the dust entering the trash removal cone 41 negatively charged and the lower end positively charged, while the third electrode plate 42 has attraction to the negatively charged lubricant oil, so that the negatively charged lubricant oil floats upwards, and the negatively charged lubricant oil on the upper layer repels the negatively charged dust on the lower end, so that the dust moves downwards and is attracted by the fourth electrode plate 43 to gather at the sealing piston column 48.

When gathering to a certain degree, controllable telescopic link 45 extends and pushes sealing piston post 48 to move down, then sealing piston post 48 passes through leak protection spring 47 pulling leak protection closing plate 46 and moves down and seals the bottom of edulcoration awl bucket 41, then sealing piston post 48 continues to move down and open oil drain 49 for lubricating oil containing impurity is discharged by ration, then controllable telescopic link 45 resets and pulls sealing piston post 48 to move up and blocks up oil drain 49, sealing piston post 48 continues to move up and pushes leak protection closing plate 46 to move up through leak protection spring 47 and open the bottom of edulcoration awl bucket 41 and continue to collect dust impurity.

The oil pump 5 sucks the clean lubricating oil on the upper layer of the impurity removal conical barrel 41 through the second oil pipe 52 and uniformly diffuses the lubricating oil into the oil box 31 through the first oil pipe 51 and the diffusion cover 53, so that the circulation impurity removal of the lubricating oil is realized.

Claims

1. The utility model provides a part machining mould surface static attaches oily equipment, includes organism (1), its characterized in that, the inside fixed mounting of organism (1) has electrostatic generator (13), the upper surface of organism (1) has been seted up and has been attached oil groove (11), it attaches oily mechanism (3) to attach to install static in oil groove (11), install static edulcoration mechanism (4) on the lateral wall of organism (1), static attaches oily mechanism (3) including oil box (31), a plurality of porous electrode net (35) are installed to the equidistance on the inner diapire of oil box (31), and is a plurality of electrostatic generator (13) is connected to porous electrode net (35), the upper end cover of oil box (31) is equipped with first electrode board (33), second electrode board (34) are installed to the diapire of oil box (31), second electrode board (34) are fixed on the tank bottom wall that attaches oil groove (11), the side wall of the oil-attached groove (11) is symmetrically provided with two mesh belt ports (12), the side wall of the oil box (31) is symmetrically provided with two die ports (32), the conveying mesh belt (23) penetrates through the mesh belt ports (12) and horizontally penetrates through the two die ports (32) along the lower edges of the two die ports (32), and the electrostatic generator (13) is respectively connected with the first electrode plate (33) and the second electrode plate (34);

the metal mold enters a space between the first electrode plate (33) and the second electrode plate (34) through the conveying net belt (23), the metal mold is induced by electric fields of the first electrode plate (33) and the second electrode plate (34), so that the lower surface of the metal mold and the lower surface of the first electrode plate (33) are same in charge type, the metal mold has the capacity of adsorbing lubricating oil, in addition, the distance between the metal mold and the second electrode plate (34) is smaller than the distance between the first electrode plate (33) and the second electrode plate (34), the field intensity between the metal mold and the second electrode plate (34) is increased, the adsorption force of the metal mold on the charged lubricating oil is increased, and the surface lubricating oil can be adsorbed on the lower working surface of the metal mold.

2. The electrostatic oil-attaching equipment for the surface of the part processing mold according to claim 1, wherein the machine body (1) is provided with a transportation mechanism (2), the transportation mechanism (2) comprises four transportation rollers (21) which are symmetrically and rotatably arranged in the machine body (1), a transportation net belt (23) is jointly arranged on the four transportation rollers (21), a transportation motor (22) is arranged on the outer side of the machine body (1), and a crankshaft of the transportation motor (22) is fixedly connected with a roller shaft of one transportation roller (21).

3. The equipment for electrostatically attaching the oil to the surface of the part processing mold according to claim 1, wherein the electrostatic impurity removing mechanism (4) comprises an impurity removing conical barrel (41) fixed on the side wall of the machine body (1), a third electrode plate (42) is arranged on an upper end cover of the impurity removing conical barrel (41), a fourth electrode plate (43) is fixedly sleeved on the outer wall of the lower end of the impurity removing conical barrel (41), and the third electrode plate (42) and the fourth electrode plate (43) are both connected with the electrostatic generator (13).

4. The surface electrostatic oil-attaching equipment for the part processing mold according to claim 3, wherein an oil well pump (5) and an oil discharge pump (6) are respectively installed on the inner side wall of the machine body (1), a first oil pipe (51) and a second oil pipe (52) are respectively installed on the oil well pump (5), a diffusion cover (53) is installed on the first oil pipe (51), a third oil pipe (61) and a fourth oil pipe (62) are respectively installed on the oil discharge pump (6), and a flow gathering cover (63) is installed on the third oil pipe (61).

5. The equipment for electrostatically attaching the oil to the surface of the part processing mold according to claim 4, wherein the diffusion cover (53) and the flow collection cover (63) are respectively inserted at two sides of the oil box (31), the second oil pipe (52) and the fourth oil pipe (62) are respectively inserted at the side wall of the impurity removing cone barrel (41), the joint of the second oil pipe (52) and the impurity removing cone barrel (41) is lower than the joint of the fourth oil pipe (62) and the impurity removing cone barrel (41), an oil supplement pipe (44) is inserted at the outer side wall of the impurity removing cone barrel (41), and the joint of the oil supplement pipe (44) and the impurity removing cone barrel (41) is positioned between the second oil pipe (52) and the fourth oil pipe (62).

6. The device for electrostatically attaching the oil to the surface of the part processing mold according to claim 1, wherein an oil discharge port (49) is formed in the lower end of the impurity removing cone barrel (41), a controllable telescopic rod (45) is fixed on the outer side wall of the machine body (1), a fixed section of the controllable telescopic rod (45) is hermetically inserted in the third electrode plate (42) and extends to the lower side of the third electrode plate (42), a movable section of the controllable telescopic rod (45) extends to the upper side of the oil discharge port (49) and is provided with a sealing piston column (48), and the lower end of the sealing piston column (48) is slidably inserted in the oil discharge port (49).

7. The equipment for electrostatically attaching the oil to the surface of the part processing mold as claimed in claim 6, wherein a leakage-proof sealing plate (46) is slidably sleeved on the movable section of the controllable telescopic rod (45), a leakage-proof spring (47) is commonly installed between the lower bottom wall of the leakage-proof sealing plate (46) and the upper surface of the sealing piston column (48), and the leakage-proof spring (47) is sleeved on the movable section of the controllable telescopic rod (45).