CN109701795B - Special rust-resistant equipment that sprays of valve stem - Google Patents
Special rust-resistant equipment that sprays of valve stem Download PDFInfo
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- CN109701795B CN109701795B CN201811645787.1A CN201811645787A CN109701795B CN 109701795 B CN109701795 B CN 109701795B CN 201811645787 A CN201811645787 A CN 201811645787A CN 109701795 B CN109701795 B CN 109701795B
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- valve rod
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Abstract
The invention relates to the field of valves, and particularly discloses a valve stem special-purpose antirust spraying device which comprises a containing box for containing a valve stem and a spraying pipe for spraying antirust oil, wherein the upper end of the containing box is provided with a charging hole, the lower end of the containing box is provided with a discharge hole for the valve stem to fall out horizontally, the valve stem special-purpose antirust spraying device also comprises an oil immersion mechanism and a control mechanism for controlling the single valve stem of the discharge hole to fall out, the oil immersion mechanism comprises a vertical guide rail, an arc-shaped guide rail and a collecting platform, the upper end of the vertical guide rail is opposite to the discharge hole of the containing box, the arc-shaped guide rail is horizontally arranged, one end of the arc-shaped guide rail is connected with the lower end of the vertical guide rail, the inner side wall of the arc-shaped guide rail is in smooth transition with the side surface of the vertical guide rail, the other end of the, the spray pipe is opposite to the inner side surface of the arc-shaped guide rail. The scheme can enable the coating of the valve stem antirust oil to be more efficient.
Description
Technical Field
The invention belongs to the field of valves, and particularly relates to a special antirust spraying device for a valve rod.
Background
The intake valve is used for sucking air into the engine to be mixed with fuel for combustion; the exhaust valve is used for discharging the combusted waste gas and dissipating heat; both the intake valve and the exhaust valve are composed of a valve rod and a valve seat, and the valve rod is an essential part in the vehicle engine. The valve stem after the shaping needs to carry out anti-rust treatment before the transportation to the circumstances of corrosion appears in the transportation, the corrosion back appears in the valve stem, and whole valve stem all can report useless, can cause very big waste to the processing cost.
The conventional rust-proof treatment method of the valve rod is to coat rust-proof oil on the valve rod, and the coating method of the rust-proof oil is generally two types: one is to soak the parts in rust preventive oil; and the other is to pour rust preventive oil on the surface of the part. The two traditional processes have large influence factors of manual intervention and low efficiency. Common rust preventive oil coating device can solve the problem of low manual operation efficiency to a certain extent, but the result is comparatively complicated, the operation is more troublesome, and the oiling cost is high.
Disclosure of Invention
The invention aims to provide the special antirust spraying equipment capable of improving the coating efficiency of the antirust oil for the valve stem.
In order to achieve the above object, the basic scheme of the invention is as follows: a special antirust spraying device for a valve rod comprises a containing box for containing the valve rod and a spraying pipe for spraying antirust oil, wherein a charging opening is formed in the upper end of the containing box, a discharge opening for the valve rod to fall out horizontally is formed in the lower end of the containing box, the special antirust spraying device also comprises an oil immersion mechanism and a control mechanism for controlling the single valve rod of the discharge opening to fall out, the oil immersion mechanism comprises a vertical guide rail, an arc-shaped guide rail and a collecting table, the upper end of the vertical guide rail is opposite to the discharge opening of the containing box, the arc-shaped guide rail is horizontally arranged, one end of the arc-shaped guide rail is connected with the lower end of the vertical guide rail, the inner side wall of the arc-shaped guide rail is in smooth transition with the side surface of the vertical guide rail, the inner side wall of the arc-shaped guide rail is in smooth transition with the upper surface of the collecting table, the spray pipe is opposite to the inner side surface of the arc-shaped guide rail.
The principle and advantages of the basic scheme are as follows: 1. the upper end of the vertical guide rail is opposite to the discharge port of the containing box, the containing box can contain the valve rod to be coated with the anti-rust oil, and the discharge port of the containing box is opposite to the vertical guide rail, so that the valve rod falling out of the discharge port can directly slide along the vertical guide rail, and the valve rod can be smoothly conveyed into the arc-shaped guide rail;
2. the arc-shaped guide rail is horizontally arranged, and the spray pipe sprays anti-rust oil to the bottom of the arc-shaped guide rail; meanwhile, the inner side wall of the arc-shaped guide rail is in smooth transition with the side face of the vertical guide rail, the other end of the arc-shaped guide rail is connected with the collecting table, the inner side wall of the arc-shaped guide rail is in smooth transition with the upper surface of the collecting table, a valve rod falling out from the discharge port can sequentially pass through the vertical guide rail and the arc-shaped guide rail, in the process, the valve rod converts gravitational potential energy into kinetic energy and slides down along the arc-shaped guide rail and the vertical guide rail, and the valve rod passes through a part of the arc-shaped guide rail containing anti-rust oil, so that the; the arc-shaped guide rail is in smooth transition with the collecting table and the vertical guide rail respectively, so that the kinetic energy loss in the process of sliding the valve rod down is small, and the valve rod can conveniently slide onto the collecting table;
3. control mechanism can control the discharge gate and go out single valve stem and fall out, and the valve stem of being convenient for is in proper order alone through the bottom of arc guide rail, avoids the bottom of arc guide rail to appear the valve stem and piles up, is not convenient for take out the valve stem in the rust-preventative oil, and takes place the collision of valve stem and valve stem easily, leads to the rust-preventative oil to splash.
4. The width of vertical guide rail and arc guide rail all is greater than the length of valve stem, and the valve stem of being convenient for the level to place also slides in vertical guide rail and arc with same form and leads, is convenient for carry out the even spraying and the coating of antirust oil, and the stable slip of valve stem.
To sum up, the vertical guide rail that has set up the connection gradually in this setting, the arc guide rail and collect the platform, and the position of collecting the platform is less than the position of vertical guide rail lower extreme, the bottom of arc guide rail can carry out the splendid attire to antirust oil, vertical guide rail and arc guide rail can lead to the slip of valve stem simultaneously, the valve stem of being convenient for removes to collecting the bench after vertical guide rail and arc guide rail slip, the spraying and the coating of valve stem antirust oil have been realized, and only need let the valve stem from discharge gate department fall out can, and is convenient simple, and antirust oil sprays and coating efficiency is high.
Furthermore, a collecting tank is arranged on the collecting platform, the bottom surface of the collecting tank is obliquely arranged, and the position of one side, away from the arc-shaped guide rail, of the bottom surface of the collecting tank is the lowest; a first flow passage for communicating the collecting groove with the inner side wall of the arc-shaped guide rail is arranged in the collecting table and the arc-shaped guide rail.
The collecting tank is internally provided with residual antirust oil after the valve rods are stacked, and the antirust oil in the collecting tank is also quickly led back to the arc-shaped guide rail through the first flow channel arranged at the bottom.
Further, control mechanism includes first spring, can carry out the magnet that blocks to the valve stem and can carry out the electro-magnet that repels to magnet, and the discharge gate department of containing box is equipped with the mounting hole, and magnet horizontal sliding mounting is in the mounting hole, the one end and the magnet fixed connection of first spring, the other end of first spring and the inner wall fixed connection of mounting hole, electro-magnet fixed mounting is on vertical guide rail, and the electro-magnet sets up with magnet relatively.
When a single valve rod is required to slide to the vertical guide rail through the discharge port, the electromagnet is started, repulsive force is generated between the electromagnet and the magnet, the magnet slides rightwards, the magnet no longer blocks the falling valve rod, the valve rod positioned at the lowest side is released into the vertical guide rail, after the valve rod enters the vertical guide rail, the electromagnet is closed instantly, and the magnet also quickly returns to the discharge port to prevent the residual valve rod from entering the vertical guide rail.
Furthermore, the control mechanism also comprises a second spring, a conducting strip and a circuit electrically connected with the electromagnet; collect the platform and be close to one of arc guide rail and serve the recess that holds the valve stem, the inner wall of recess is the arc, and the bottom of recess is equipped with the mounting groove, and the second spring is vertical to be installed in the mounting groove, forms in the middle of the circuit and opens circuit, and the department that opens circuit of circuit is located the mounting groove, and the conducting strip is connected to the upper end of second spring, and the conducting strip can communicate the circuit.
After the valve rod slides along the arc-shaped guide rail, the valve rod can be instantly slid to the bottom of the collecting groove along the bottom surface of the collecting groove after being guided into the groove, the valve rod can instantly press the conducting strip in the process, in the pressing process, the pressure acts on the conducting strip, the conducting strip moves towards the mounting groove, the second spring is compressed, the conducting strip instantly communicates the open circuit position of the circuit after moving into the mounting groove, instant energization of the electromagnet is realized, and falling of a single valve rod is realized; the conducting strip loses pressure in the twinkling of an eye, and the conducting strip is return in the twinkling of an eye under the elasticity of second spring, and then lets the start-up of electro-magnet also in the twinkling of an eye, and the also quick return of magnet is to discharge gate department, prevents that remaining valve stem from continuing to drop, guarantees spraying in proper order and coating a plurality of valve stem antirust oil.
Furthermore, a plurality of oil filtering holes communicated with the mounting groove are formed in the conducting plate, and a second flow passage communicated with the mounting groove and the inner side wall of the arc-shaped guide rail is formed in the collecting table and the arc-shaped guide rail.
When the valve rod enters the groove to press the conducting strip, redundant anti-rust oil on the valve rod enters the installation groove through the oil filtering hole, and the anti-rust oil returns to the arc-shaped guide rail through the installation groove and the second flow channel; when the anti-rust oil in the mounting groove is too much, the conductive sheet which slides up and down can extrude the anti-rust oil into the second flow channel, so that the anti-rust oil can flow back quickly, and the anti-rust oil on the valve rod can be effectively reduced.
Furthermore, the lower extreme of containing box is equipped with spacing portion, and the width of spacing portion is greater than single valve stem diameter and is less than the diameter of two valve stems.
Because the restriction of spacing portion width, the condition that two valve stems are on same horizontal plane side by side can not appear in spacing portion, when the valve stem falls out from the discharge gate department, be more convenient for let single discharge gate open only a valve stem can fall out from the discharge gate department through control mechanism, let the more controllable of the process of falling out of valve stem.
Furthermore, a plurality of elastic limiting pieces are sequentially arranged on the inner wall of the limiting part of the containing box from top to bottom, the distance between each limiting piece and each limiting piece is equal to the diameter of a single valve rod, and each limiting piece is abutted against the side face of each valve rod.
Spacing piece can be separated spacingly to the valve stem that lies in spacing portion, and after the valve stem of downside falls out, all the other valve stems stir spacing piece in proper order and remove to discharge gate department afterwards, and spacing piece can slow down the whereabouts of valve stem, and the magnet of being convenient for cooperates with the whereabouts falling speed of valve stem, is convenient for stop remaining valve stem.
The cover body is detachably connected with the vertical guide rail and the arc-shaped guide rail, and the cover body covers the grooves in the same shape; the cover body is provided with an opening for the spray pipe to pass through.
The cover body limits the sliding of the valve rod, so that the valve rod is prevented from flying out of the vertical guide rail and the arc-shaped guide rail; simultaneously when the valve stem slides to collection platform one side, the lid can be spacing to gliding valve stem, with the valve stem leading-in after the recess in the twinkling of an eye again along the bottom surface of collecting vat slide to the bottom department of collecting vat, this in-process valve stem can press the conducting strip in the twinkling of an eye once more, realize falling out of next valve stem.
Drawings
FIG. 1 is a structural sectional view in the main view direction of the rust-proof spraying equipment special for the valve stem of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is an enlarged view at B in fig. 1.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a containing box 10, a feed inlet 101, a discharge port 102, a limiting part 103, a limiting sheet 104, a vertical guide rail 30, an arc-shaped guide rail 40, a collecting table 50, a collecting groove 501, a mounting groove 502, a second flow passage 503, a first flow passage 504, a first spring 601, a magnet 602, an electromagnet 603, a second spring 604, a conducting sheet 605, a circuit 606, an oil filtering hole 607, a cover body 70, a valve rod 80 and a spray pipe 90.
The embodiments are substantially as shown in figures 1, 2 and 3: the utility model provides a special rust-resistant spraying equipment of valve stem, includes the splendid attire case 10 of splendid attire valve stem 80 and the shower 90 of blowout anti-rust oil, and the upper end of splendid attire case is equipped with charge door 101, and the lower extreme of splendid attire case is equipped with the discharge gate 102 that supplies valve stem 80 level to fall out, still includes immersion oil mechanism and the single valve stem 80 of control discharge gate 102 control mechanism that falls out.
As shown in fig. 1 and 2, the lower end of the container is provided with a limiting part 103, and the width of the limiting part 103 is 1.1 times larger than the diameter of a single valve rod 80; four elastic limiting pieces 104 are sequentially arranged on the inner wall of the limiting part 103 of the containing box from top to bottom, the distance between each limiting piece 104 and each limiting piece 104 is equal to the diameter of a single valve rod 80, and the limiting pieces 104 are abutted against the side faces of the valve rods 80.
As shown in fig. 1, the oil immersion mechanism includes a vertical guide rail 30, an arc guide rail 40 and a collection table 50, the upper end of the vertical guide rail 30 is in relative and smooth transition with the left side of a container discharge port 102, the arc guide rail 40 is horizontally arranged, the left end of the arc guide rail 40 is fixedly connected with the lower end of the vertical guide rail 30, the inner side wall of the arc guide rail 40 is in smooth transition with the side surface of the vertical guide rail 30, the right end of the arc guide rail 40 is connected with the collection table 50, the inner side wall of the arc guide rail 40 is in smooth transition with the upper surface of the collection table 50, the position of the collection table 50 is lower than the position of the lower end of the vertical guide rail 30, and the longitudinal widths of the.
As shown in the right side of fig. 1, a collecting groove 501 is arranged on the collecting table 50, the bottom surface of the collecting groove 501 is arranged obliquely, and the position of one side of the bottom surface of the collecting groove 501 away from the arc-shaped guide rail 40 is the lowest; the collection table 50 and the arcuate guide rail 40 are provided with a second flow passage 503 communicating the collection trough 501 with the inner side wall of the arcuate guide rail 40.
As shown in fig. 2 and 3, the control mechanism includes a first spring 601, a magnet 602 capable of blocking the valve rod 80, an electromagnet 603 capable of repelling the magnet 602, a second spring 604, a conductive sheet 605 and a circuit 606 electrically connected to the electromagnet 603, a mounting hole is provided at the discharge port 102 of the container, the magnet 602 is horizontally slidably mounted in the mounting hole, the left end of the first spring 601 is welded to the magnet 602, the right end of the first spring 601 is welded to the inner wall of the mounting hole, and the electromagnet 603 is welded to the upper end of the vertical guide rail 30, so that the electromagnet 603 faces the magnet 602.
A groove for accommodating the valve rod 80 is formed in the left end of the collecting table 50, the inner wall of the groove is arc-shaped, a mounting groove 502 is formed in the bottom of the groove, a second spring 604 is vertically mounted in the mounting groove 502, a broken circuit is formed in the middle of a circuit 606, the broken circuit position of the circuit 606 is located in the mounting groove 502, the upper end of the second spring 604 is connected with a conducting strip 605, and the conducting strip 605 can communicate the circuit 606; the conducting plate 605 is provided with a plurality of oil filtering holes 607 communicated with the mounting groove 502, and the collecting table 50 and the arc-shaped guide rail 40 are internally provided with a first flow passage 504 communicated with the mounting groove 502 and the inner side wall of the arc-shaped guide rail 40.
In addition, the shower head further comprises a cover body 70 covering the vertical guide rail 30 and the arc-shaped guide rail 40, a gap for the valve rod 80 to pass through is arranged between the lower surface of the cover body 70 and the vertical guide rail 30 and the arc-shaped guide rail 40, the cover body 70 is detachably connected with the vertical guide rail 30 and the arc-shaped guide rail 40, the cover body 70 covers the groove in a consistent shape, and the shower pipe 90 passes through the opening in the cover body 70 and is opposite to the bottom of the arc-shaped guide rail 40.
When the rust-proof spraying equipment special for the valve rod in the embodiment is used, a plurality of valve rods 80 to be rust-proof are horizontally placed into the containing box, the valve rods 80 are placed into the containing box, the valve rods 80 in the containing box are arranged in the mode shown in fig. 1, due to the limitation of the width of the limiting part 103, the valve rods 80 in the limiting part 103 are arranged in a row, each valve rod 80 is respectively positioned between two adjacent limiting pieces 104, and the limiting pieces 104 are used for separating and limiting the valve rods 80; at the same time, the cover 70 is removed, and the spray pipe 90 sprays the rust preventive oil to the bottom of the arc-shaped guide rail 40.
In the initial state, the magnet 602 is positioned such that the left end of the magnet 602 overlaps the right side of the discharge port 102 as shown in fig. 2, and the left end of the magnet 602 abuts the dropped valve stem 80.
When the cover is used for the first time, the cover is inserted from the right side of the cover body 70, the conducting strip 605 in the groove is pressed downwards by hand, and the conducting strip is released instantly after being pressed; in the pressing process, the conducting strip 605 moves into the mounting groove 502 as shown in fig. 3, the second spring 604 is compressed, the conducting strip 605 moves into the mounting groove 502 to connect the open circuit position of the circuit 606, the electromagnet 603 is opened after the circuit 606 is connected, repulsive force is generated between the electromagnet 603 and the magnet 602, the magnet 602 slides rightwards, the magnet 602 does not block the falling valve rod 80 any more, the valve rod 80 at the lowest side is released into the vertical guide rail 30, because the pressing of the conducting strip 605 is instantaneous, the conducting strip 605 returns instantaneously under the elastic force of the second spring 604, the starting of the electromagnet 603 is instantaneous, the magnet 602 also returns quickly to the discharge port 102, in the process, the rest valve rods 80 sequentially pull the limiting strip 104 and then move to the discharge port 102, the limiting strip 104 can decelerate the falling of the valve rod 80, and the magnet 602 conveniently blocks the rest valve rods 80, access to the vertical guide rails 30 is achieved for a single valve stem 80.
After a single valve rod 80 enters the vertical guide rail 30, the gravitational potential energy of the valve rod 80 is converted into the kinetic energy of the valve rod 80, the valve rod 80 rapidly slides along the surface formed by the vertical guide rail 30 and the arc-shaped guide rail 40, and the cover body 70 limits the sliding of the valve rod 80 to prevent the valve rod 80 from flying out of the vertical guide rail 30 and the arc-shaped guide rail 40; when the valve rod 80 slides to the bottom of the arc-shaped guide rail 40, the valve rod 80 can be fully contacted with the anti-rust oil at the bottom of the arc-shaped guide rail 40, so that the spraying and coating of the anti-rust oil on the valve rod 80 are realized; when the valve stem 80 slides to the right end of the arc-shaped guide rail 40, the cover body 70 can limit the sliding valve stem 80, the valve stem 80 is guided into the groove and then slides to the bottom of the right side of the collecting groove 501 along the bottom surface of the collecting groove 501 instantaneously, the valve stem 80 can press the conducting strip 605 instantaneously again in the process, the next valve stem 80 falls out, the valve stem 80 can be singly sprayed and coated with antirust oil, and the delivery of the valve stem 80 is realized.
When the valve rod 80 enters the groove to press the conducting strip 605, the redundant rust preventive oil on the valve rod 80 enters the mounting groove 502 through the oil filtering hole 607, and the rust preventive oil returns to the arc-shaped guide rail 40 through the mounting groove 502 and the second flow passage 503; when the rust preventive oil in the mounting groove 502 is excessive, the conductive sheet 605 which slides up and down can extrude the rust preventive oil into the second flow channel 503, so that the rust preventive oil can flow back quickly.
Meanwhile, rust preventive oil also remains in the collecting groove 501 after the valve rod 80 is stacked, and the rust preventive oil in the collecting groove 501 is quickly led back to the arc-shaped guide rail 40 through the first flow channel 504 arranged at the bottom.
Claims (6)
1. An antirust spraying device special for a valve rod comprises a containing box for containing the valve rod and a spraying pipe for spraying antirust oil, it is characterized in that the upper end of the containing box is provided with a charging hole, the lower end of the containing box is provided with a discharge hole for a valve rod to fall out horizontally, the oil immersion mechanism and the control mechanism for controlling the single valve rod of the discharge hole to fall out are also included, the oil immersion mechanism comprises a vertical guide rail, an arc-shaped guide rail and a collecting platform, the upper end of the vertical guide rail is opposite to a discharge hole of the containing box, the arc-shaped guide rail is horizontally arranged, one end of the arc-shaped guide rail is connected with the lower end of the vertical guide rail, the inner side wall of the arc-shaped guide rail is in smooth transition with the side surface of the vertical guide rail, the other end of the arc-shaped guide rail is connected with the collecting table, the inner side wall of the arc-shaped guide rail is in smooth transition with the upper surface of the collecting table, the position of the collecting table is lower than the position of the lower end of the vertical guide rail, and the widths of the vertical guide rail and the arc-shaped guide rail are both larger than the length of the air valve rod; the spraying pipe is opposite to the inner side surface of the arc-shaped guide rail; the control mechanism comprises a first spring, a magnet capable of blocking the valve rod and an electromagnet capable of repelling the magnet, a mounting hole is formed in the discharge port of the containing box, the magnet is horizontally and slidably mounted in the mounting hole, one end of the first spring is fixedly connected with the magnet, the other end of the first spring is fixedly connected with the inner wall of the mounting hole, the electromagnet is fixedly mounted on the vertical guide rail, and the electromagnet and the magnet are oppositely arranged; the control mechanism also comprises a second spring, a conducting strip and a circuit electrically connected with the electromagnet; collect the platform and be close to one of arc guide rail and serve and be equipped with the recess that holds the valve stem, the inner wall of recess is the arc, and the bottom of recess is equipped with the mounting groove, and the second spring is vertical to be installed in the mounting groove, forms in the middle of the circuit and opens circuit, and the department that opens circuit of circuit is located the mounting groove, and the conducting strip is connected to the upper end of second spring, and the conducting strip can communicate the circuit.
2. The special antirust spraying equipment for the valve rod according to claim 1, wherein a collecting groove is arranged on the collecting table, the bottom surface of the collecting groove is obliquely arranged, and the position of one side, away from the arc-shaped guide rail, of the bottom surface of the collecting groove is lowest; a first flow passage for communicating the collecting groove with the inner side wall of the arc-shaped guide rail is arranged in the collecting table and the arc-shaped guide rail.
3. The special antirust spraying equipment for the valve rod as recited in claim 2, wherein the conducting strip is provided with a plurality of oil filtering holes communicated with the mounting groove, and the collecting table and the arc-shaped guide rail are provided with second flow passages communicated with the mounting groove and the inner side wall of the arc-shaped guide rail.
4. The special antirust spraying equipment for the valve rods is characterized in that the lower end of the containing box is provided with a limiting part, and the width of the limiting part is larger than the diameter of a single valve rod and smaller than the diameters of two valve rods.
5. The special antirust spraying equipment for the valve rod according to claim 4, wherein a plurality of elastic limiting pieces are sequentially arranged on the inner wall of the limiting part of the containing box from top to bottom, the distance between each limiting piece and each limiting piece is equal to the diameter of a single valve rod, and each limiting piece abuts against the side face of the valve rod.
6. The special antirust spraying equipment for the valve rod according to claim 5, further comprising a cover body covering the vertical guide rail and the arc-shaped guide rail, wherein a gap for the valve rod to pass through is arranged between the lower surface of the cover body and the vertical guide rail as well as between the lower surface of the cover body and the arc-shaped guide rail, the cover body is detachably connected with the vertical guide rail and the arc-shaped guide rail, and the cover body covers the grooves in a consistent shape; the cover body is provided with an opening for the spray pipe to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645787.1A CN109701795B (en) | 2018-12-29 | 2018-12-29 | Special rust-resistant equipment that sprays of valve stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811645787.1A CN109701795B (en) | 2018-12-29 | 2018-12-29 | Special rust-resistant equipment that sprays of valve stem |
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| Publication Number | Publication Date |
|---|---|
| CN109701795A CN109701795A (en) | 2019-05-03 |
| CN109701795B true CN109701795B (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811645787.1A Active CN109701795B (en) | 2018-12-29 | 2018-12-29 | Special rust-resistant equipment that sprays of valve stem |
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| CN115254523B (en) * | 2022-09-27 | 2023-04-25 | 常州工利精机科技有限公司 | Motor iron core rust-proof treatment process |
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| CN203803800U (en) * | 2014-03-20 | 2014-09-03 | 恩恩精密轴承制品（昆山）有限公司 | Automatic ball sprinkling device |
| CN106694414B (en) * | 2016-12-27 | 2018-12-07 | 重庆市健隆家具有限公司 | Steel ball screening cleaning integrated device |
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Effective date of registration: 20210127 Address after: 401520 no.63-2, Xinyou Road, Yinxiang new town, Tuchang Town, Hechuan District, Chongqing Patentee after: Chongqing henglei industry and Trade Co., Ltd Address before: 401520 sankou village, Tuchang Town, Hechuan District, Chongqing Patentee before: CHONGQING JIANDA HENGYI VALVE Co.,Ltd. |