CN114700378A - Pipe body pretreatment device and method before cold rolling of pipe of cold rolling mill - Google Patents
Pipe body pretreatment device and method before cold rolling of pipe of cold rolling mill Download PDFInfo
- Publication number
- CN114700378A CN114700378A CN202210627410.3A CN202210627410A CN114700378A CN 114700378 A CN114700378 A CN 114700378A CN 202210627410 A CN202210627410 A CN 202210627410A CN 114700378 A CN114700378 A CN 114700378A
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- Prior art keywords
- pipe
- cold rolling
- fixedly connected
- seat
- base
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of pipe body pretreatment, and discloses a pipe body pretreatment device and a pipe body pretreatment method before cold rolling of a pipe material of a cold pilger mill. The invention can carry out heat treatment on the pipe in advance when the pipe is subjected to cold rolling, is convenient for cold rolling, can automatically treat burrs on the surface of the pipe and can automatically repair uneven parts on the surface of the pipe, and improves the cold rolling quality of the pipe.
Description
Technical Field
The invention relates to the technical field of pipe body pretreatment, in particular to a pipe body pretreatment device and method before cold rolling of a pipe of a cold rolling mill.
Background
The cold pilger mill is a technological equipment for cold rolling pierced billets by using an annular ring shape, has better cogging performance, can roll nonferrous metal seamless tubes with common precision, and has the biggest characteristic of high material utilization rate, and the precision and the surface roughness are superior to those of cold drawn tubes.
The cold-rolled pipe is widely applied to various fields of national economy due to the excellent characteristics of the cold-rolled pipe. The cold rolled pipe has fine crystal grains, excellent mechanical performance and excellent physical performance, and the cold rolling pipe has great deviation correcting capacity to the wall thickness deviation of the original pipe blank, precise geometric size, high surface smoothness and 70-90% pass deformation, and the cold rolling process can reduce the number of intermediate steps, including heat treatment, acid washing, heading, straightening, etc. and reduce the consumption of metal material, fuel, electric energy, other supplementary material and manpower. However, when the pipes are subjected to cold rolling treatment, because the hardness of some pipes is high, equipment can be damaged by directly using a cold rolling machine, burrs on the surfaces of the pipes are more, an operator needs to polish the burrs on the surfaces of the pipes by using a polishing tool, and the workload of the operator is increased.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, when pipes are subjected to cold rolling treatment, equipment is damaged due to the fact that a cold rolling machine is directly used due to the fact that the hardness of some pipes is high, burrs on the surfaces of the pipes are more, operating personnel need to use polishing tools to polish the burrs on the surfaces of the pipes, and the workload of the operating personnel is increased.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pipe body pretreatment device before cold rolling of a pipe of a cold pilger mill comprises a base and is characterized in that, the front side wall and the rear side wall of the base are both fixedly connected with two supporting rods, the upper ends of the four supporting rods are fixedly connected with a top plate, the middle position of the top plate is rotationally connected with a threaded cylinder through a bearing, a threaded rod is sleeved in the internal thread of the threaded cylinder, the lower end of the threaded rod is fixedly connected with a lifting plate, the side walls of the lifting plate and the side wall of the base opposite to each other are fixedly connected with an arc-shaped box, steam pipes are arranged on the side walls of the lifting plate and the base, the steam pipes are fixedly communicated with the arc-shaped box, the side wall of the arc-shaped box is provided with a plurality of air outlet holes, the side walls of the lifting plate and the side wall of the base opposite to each other are fixedly connected with a mounting seat through elastic pieces, the side wall of the mounting seat is connected with a polishing seat through a connecting mechanism, and the side wall of the polishing seat is fixedly connected with a polishing ring.
Preferably, the outer wall of the lower part of the threaded cylinder is fixedly sleeved with a bevel gear ring, the top of the top plate is also fixedly connected with a control motor, and the output end of the control motor is fixedly connected with a bevel gear matched with the bevel gear ring.
Preferably, coupling mechanism is including the fixture block of fixed connection in the seat of polishing and the mount pad left and right sides respectively, lies in with one with two fixture block overcoat is equipped with same card frame, the lateral wall of fixture block and card frame has all been seted up spacing hole and spacing downthehole interpolation and has been connected with the spacer pin.
Preferably, the upper end of the limit pin is fixedly connected with a pulling plate, and the pulling plate and the side wall of the opposite side of the clamping frame are fixedly connected with a spring.
Preferably, the bottom fixedly connected with two fixed blocks of the seat of polishing, two fixed slots that match each other with the fixed block are seted up at the top of mount pad.
Preferably, the side walls of the opposite sides of the lifting plate and the base are fixedly connected with a shaping seat, and the side walls of the shaping seat are fixedly connected with a plurality of shaping rollers.
Preferably, the lower part of the top plate is fixedly connected with two clamping rods, two clamping grooves are formed in the wall of the threaded rod, and the clamping rods are matched with the clamping grooves.
Preferably, electric push rods are arranged at four corners of the bottom of the base, and rollers are fixedly connected to the bottoms of the electric push rods.
A method for pretreating a pipe body before cold rolling of a pipe of a cold rolling mill is used, and the device for pretreating the pipe body before cold rolling of the pipe of the cold rolling mill comprises the following steps:
s1: placing a pipe between a base and a lifting plate, driving a threaded rod to move downwards through thread fit, and driving the arc-shaped box and the polishing seat on the upper side to move downwards through the lifting plate until the arc-shaped box and the polishing seat on the upper side and the lower side are contacted with the pipe;
s2: when the pipe is cold-rolled, the pipe can be pulled, then steam is introduced into the arc box through the steam pipe, the pipe is heated through the steam, and burrs on the surface of the pipe are polished through the polishing ring.
Compared with the prior art, the invention provides a pipe body pretreatment device and a method before cold rolling of a cold-rolling pipe mill pipe, which have the following beneficial effects:
1. according to the invention, steam is introduced into the arc-shaped box through the steam pipe, the pipe is heated by the steam, and the burrs on the surface of the pipe are polished by the polishing ring.
2. The shaping seat and the shaping roller are arranged, so that the uneven part of the surface of the pipe can be automatically trimmed, and the cold rolling quality of the pipe is further improved.
3. The invention drives the bevel gear and the bevel gear ring to be matched with each other to drive the threaded cylinder to rotate by controlling the motor, and drives the threaded rod to move downwards by the thread matching, so that the structure is simple and the use is convenient.
4. According to the invention, through the mutual matching of the fixing block and the fixing groove, the stability of the polishing seat and the mounting seat is improved, and the condition that the quality of a pipe is influenced due to eccentric wear in the polishing process of the polishing seat is prevented.
Drawings
FIG. 1 is a schematic structural diagram of a pipe body pretreatment device before cold rolling of a pipe of a cold pilger mill according to the present invention;
fig. 2 is an enlarged schematic view of a portion a of fig. 1.
In the figure: 1. a base; 2. a support bar; 3. a top plate; 4. a threaded barrel; 5. a bevel gear ring; 6. controlling the motor; 7. a bevel gear; 8. a threaded rod; 9. a lifting plate; 10. an arc-shaped box; 11. a steam pipe; 12. an air outlet; 13. an elastic member; 14. a mounting seat; 15. polishing the base; 16. grinding a ring; 17. a clamping block; 18. clamping a frame; 19. a limiting hole; 20. a limit pin; 21. pulling a plate; 22. a spring; 23. a fixed block; 24. fixing grooves; 25. a shaping base; 26. a shaping roller; 27. a position clamping rod; 28. a clamping groove; 29. an electric push rod; 30. and a roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the 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 construed as limiting the present invention.
Example 1
As shown in fig. 1 and 2, a pipe body pretreatment device before cold rolling of a pipe material of a cold rolling mill comprises a base 1, wherein the front side wall and the rear side wall of the base 1 are fixedly connected with two support rods 2, the upper ends of the four support rods 2 are fixedly connected with a top plate 3, the middle position of the top plate 3 is rotatably connected with a threaded cylinder 4 through a bearing, a threaded rod 8 is sleeved in the threaded cylinder 4, the lower end of the threaded rod 8 is fixedly connected with a lifting plate 9, the lifting plate 9 and the side wall of the opposite side of the base 1 are fixedly connected with an arc-shaped box 10, the lifting plate 9 and the side wall of the base 1 are respectively provided with a steam pipe 11, the steam pipe 11 is fixedly communicated with the arc-shaped box 10, the side wall of the arc-shaped box 10 is provided with a plurality of air outlet holes 12, the lifting plate 9 and the side wall of the opposite side of the base 1 are respectively fixedly connected with a mounting seat 14 through an elastic piece 13, the side wall of the mounting seat 14 is connected with a polishing seat 15 through a connecting mechanism, and the side wall of the polishing seat 15 is fixedly connected with a polishing ring 16.
In the practical use process, the pipe is placed between the base 1 and the lifting plate 9, the threaded rod 8 moves downwards, the threaded rod 8 drives the arc box 10 and the polishing seat 15 on the upper side to move downwards through the lifting plate 9 until the arc box 10 and the polishing seat 15 on the upper side and the lower side are contacted with the pipe, the pipe is pulled when the pipe is cold-rolled, then steam is introduced into the arc box 10 through the steam pipe 11, the pipe is heated through the steam, and burrs on the surface of the pipe are polished through the polishing ring 16. The invention can carry out heat treatment on the pipe in advance when the pipe is subjected to cold rolling, is convenient for cold rolling the pipe, can automatically treat burrs on the surface of the pipe, and improves the cold rolling quality of the pipe.
Example 2
Preferably, on the basis of embodiment 1, in this embodiment, a bevel gear ring 5 is fixedly sleeved on an outer wall of a lower portion of the threaded cylinder 4, the top of the top plate 3 is further fixedly connected with a control motor 6, and an output end of the control motor 6 is fixedly connected with a bevel gear 7 matched with the bevel gear ring 5.
In the practical use process, when the device is used, a pipe is placed between the base 1 and the lifting plate 9, then the control motor 6 is started to work, the control motor 6 drives the threaded cylinder 4 to rotate through the mutual matching of the bevel gear 7 and the bevel gear ring 5, and the threaded rod 8 is driven to move downwards through the thread matching, so that the device is simple and convenient.
Example 3
Preferably, on the basis of embodiment 1 or embodiment 2, in this embodiment, the connecting mechanism includes two clamping blocks 17 respectively fixedly connected to the left and right sides of the polishing seat 15 and the mounting seat 14, the same clamping frame 18 is sleeved outside the two clamping blocks 17 located on the same side, the side walls of the clamping blocks 17 and the clamping frame 18 are both provided with a limiting hole 19, and a limiting pin 20 is inserted into the limiting hole 19.
In the practical use process, the connecting mechanism comprises clamping blocks 17 fixedly connected to the left side and the right side of the polishing seat 15 and the mounting seat 14 respectively, the same clamping frame 18 is sleeved outside the two clamping blocks 17 positioned on the same side, limiting holes 19 are formed in the side walls of the clamping blocks 17 and the clamping frame 18, and limiting pins 20 are inserted into the limiting holes 19. The grinding seat 15 and the mounting seat 14 are fixed by using a connecting mechanism of the clamping block 17 and the clamping frame 18 matched with the limiting pin 20, and the grinding seat 15 is convenient to disassemble and assemble after the grinding ring 16 is used for a period of time.
Example 4
Preferably, on the basis of embodiment 1 or embodiment 3, in this embodiment, a pulling plate 21 is fixedly connected to an upper end of the stopper pin 20, and a spring 22 is fixedly connected to a side wall of the pulling plate 21 opposite to the clamping frame 18.
In the practical use process, the side wall of the opposite side of the pulling plate 21 and the clamping frame 18 is fixedly connected with the spring 22, when the limiting pin 20 is installed, the spring 22 is in a compressed state, and when the limiting pin 20 is disassembled, the elasticity of the spring 22 is released, so that the disassembly is convenient.
Example 5
Preferably, on the basis of embodiment 1 or embodiment 4, in this embodiment, two fixing blocks 23 are fixedly connected to the bottom of the polishing seat 15, and two fixing grooves 24 matched with the fixing blocks 23 are formed in the top of the mounting seat 14.
In the practical use process, the grinding seat 15 and the mounting seat 14 are improved in stability through the mutual matching of the fixing block 23 and the fixing groove 24.
Example 6
Preferably, on the basis of embodiment 1 or embodiment 5, in this embodiment, a shaping seat 25 is fixedly connected to each of the side walls of the lifting plate 9 and the base 1 on the opposite side, and a plurality of shaping rollers 26 are fixedly connected to the side wall of the shaping seat 25.
In the practical use process, the side wall of the shaping base 25 of the invention is fixedly connected with a plurality of shaping rollers 26, and the surface of the pipe is trimmed by the shaping rollers 26.
Example 7
Preferably, on the basis of embodiment 1 or embodiment 6, in this embodiment, two position-locking rods 27 are fixedly connected to the lower portion of the top plate 3, two position-locking grooves 28 are formed in the rod wall of the threaded rod 8, and the position-locking rods 27 are matched with the position-locking grooves 28.
In the practical use process, the rod wall of the threaded rod 8 is provided with two clamping grooves 28, and the clamping rod 27 is matched with the clamping grooves 28 to prevent the threaded rod 8 from rotating, so that the threaded rod 8 can only move up and down in the vertical direction.
Example 8
Preferably, on the basis of embodiment 1 or embodiment 7, in this embodiment, electric push rods 29 are arranged at four corners of the bottom of the base 1, and rollers 30 are fixedly connected to the bottoms of the electric push rods 29.
In the practical use process, the four corners of the lower side wall of the base 1 are fixedly connected with the rollers 30 through the electric push rods 29, so that the moving convenience of the base 1 is improved.
Example 9
A pipe body pretreatment method before cold rolling of a pipe of a cold rolling mill uses the pipe body pretreatment device before cold rolling of the pipe of the cold rolling mill, which is characterized by comprising the following steps:
s1: placing a pipe between the base 1 and the lifting plate 9, driving the threaded rod 8 to move downwards through thread fit, and driving the arc box 10 and the polishing seat 15 on the upper side to move downwards through the lifting plate 9 by the threaded rod 8 until the arc box 10 and the polishing seat 15 on the upper side and the lower side are contacted with the pipe;
s2: when the pipe is cold-rolled, the pipe is pulled, then steam is introduced into the arc-shaped box 10 through the steam pipe 11, the pipe is heated through the steam, and burrs on the surface of the pipe are polished through the polishing ring 16.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. The utility model provides a body preprocessing device before cold rolling of cold pilger mill tubular product, includes base (1), its characterized in that, the equal fixedly connected with two spinal branch vaulting poles (2) of lateral wall around base (1), four the upper end fixedly connected with roof (3) of bracing piece (2), the top intermediate position of roof (3) is rotated through the bearing and is connected with screw thread section of thick bamboo (4), threaded rod (8) have been cup jointed to screw thread section of thick bamboo (4) internal thread, the lower extreme fixedly connected with lifter plate (9) of threaded rod (8), the lateral wall of the relative one side of lifter plate (9) and base (1) all fixedly connected with arc case (10), the lateral wall of lifter plate (9) and base (1) all is equipped with steam pipe (11), steam pipe (11) and arc case (10) fixed intercommunication, a plurality of ventholes (12) have been seted up to the lateral wall of arc case (10), the side wall of the opposite side of the lifting plate (9) and the base (1) is fixedly connected with a mounting seat (14) through an elastic part (13), the side wall of the mounting seat (14) is connected with a polishing seat (15) through a connecting mechanism, and the side wall of the polishing seat (15) is fixedly connected with a polishing ring (16).
2. The pretreatment device for the pipe body before cold rolling of the pipe of the cold pilger mill according to claim 1, wherein a bevel gear ring (5) is fixedly sleeved on the outer wall of the lower part of the threaded cylinder (4), the top of the top plate (3) is also fixedly connected with a control motor (6), and the output end of the control motor (6) is fixedly connected with a bevel gear (7) which is matched with the bevel gear ring (5).
3. The pipe body pretreatment device before cold rolling of the pipe of the cold rolling mill according to claim 1, wherein the connecting mechanism comprises clamping blocks (17) fixedly connected to the left side and the right side of the polishing seat (15) and the mounting seat (14), the same clamping frame (18) is sleeved outside the two clamping blocks (17) positioned on the same side, the side walls of the clamping blocks (17) and the clamping frame (18) are respectively provided with a limiting hole (19), and a limiting pin (20) is inserted into the limiting hole (19).
4. The device for pretreating pipe bodies before cold rolling of pipe materials of a cold pilger mill according to claim 3, wherein a pulling plate (21) is fixedly connected to the upper end of the limiting pin (20), and a spring (22) is fixedly connected to the side wall of one side, opposite to the clamping frame (18), of the pulling plate (21).
5. The pipe body pretreatment device before cold rolling of the pipe of the cold pilger mill according to claim 1, characterized in that two fixing blocks (23) are fixedly connected to the bottom of the grinding seat (15), and two fixing grooves (24) matched with the fixing blocks (23) are formed in the top of the mounting seat (14).
6. The device for pretreating pipe bodies before cold rolling of pipe materials of a cold pilger mill according to claim 1, wherein the side walls of the lifting plate (9) and the side walls of the base (1) at the opposite sides are fixedly connected with a shaping seat (25), and the side walls of the shaping seat (25) are fixedly connected with a plurality of shaping rollers (26).
7. The tube body pretreatment device before cold rolling of the tube of the cold pilger mill according to claim 1, characterized in that two clamping rods (27) are fixedly connected to the lower portion of the top plate (3), two clamping grooves (28) are formed in the wall of the threaded rod (8), and the clamping rods (27) are matched with the clamping grooves (28).
8. The pipe body pretreatment device before cold rolling of the pipe of the cold pilger mill according to claim 1, characterized in that electric push rods (29) are arranged at four corners of the bottom of the base (1), and rollers (30) are fixedly connected to the bottoms of the electric push rods (29).
9. A pipe body pretreatment method before cold rolling of a pipe of a cold rolling mill uses the pipe body pretreatment device before cold rolling of the pipe of the cold rolling mill, which is characterized by comprising the following steps:
s1: the pipe is placed between the base (1) and the lifting plate (9), the threaded rod (8) is driven to move downwards through thread fit, the threaded rod (8) drives the arc box (10) and the polishing seat (15) on the upper side to move downwards through the lifting plate (9) until the arc box (10) and the polishing seat (15) on the upper side and the lower side are contacted with the pipe;
s2: when the pipe is subjected to cold rolling, the pipe is pulled, then steam is introduced into the arc-shaped box (10) through the steam pipe (11), the pipe is heated through the steam, and burrs on the surface of the pipe are ground through the grinding ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210627410.3A CN114700378A (en) | 2022-06-06 | 2022-06-06 | Pipe body pretreatment device and method before cold rolling of pipe of cold rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210627410.3A CN114700378A (en) | 2022-06-06 | 2022-06-06 | Pipe body pretreatment device and method before cold rolling of pipe of cold rolling mill |
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| Publication Number | Publication Date |
|---|---|
| CN114700378A true CN114700378A (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210627410.3A Pending CN114700378A (en) | 2022-06-06 | 2022-06-06 | Pipe body pretreatment device and method before cold rolling of pipe of cold rolling mill |
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| Country | Link |
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| CN (1) | CN114700378A (en) |
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| WO2022041691A1 (en) * | 2020-08-25 | 2022-03-03 | 南京灵雀智能制造有限公司 | Oil stain removing device for external threaded screw part and working method |
| CN114345957A (en) * | 2022-03-21 | 2022-04-15 | 中国重型机械研究院股份公司 | Discharging air cooling device for cold rolling mill and air cooling method |
| CN216670327U (en) * | 2021-12-20 | 2022-06-03 | 深圳市富士精陶科技有限公司 | Optical fiber ferrule ceramic sleeve |
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2022
- 2022-06-06 CN CN202210627410.3A patent/CN114700378A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210552960U (en) * | 2019-08-05 | 2020-05-19 | 江苏蓝佩得工业科技有限公司 | Arc-shaped piece heating forming die |
| CN212822055U (en) * | 2020-07-24 | 2021-03-30 | 江门市江海区恩诚五金灯饰有限公司 | Automatic spinning machine for producing LED lamp fittings |
| WO2022041691A1 (en) * | 2020-08-25 | 2022-03-03 | 南京灵雀智能制造有限公司 | Oil stain removing device for external threaded screw part and working method |
| CN213350688U (en) * | 2020-09-09 | 2021-06-04 | 济南元序机械设备有限公司 | Feeding mechanism for cold header |
| CN215201405U (en) * | 2021-08-04 | 2021-12-17 | 中北大学 | Multifunctional part grinding device |
| CN216670327U (en) * | 2021-12-20 | 2022-06-03 | 深圳市富士精陶科技有限公司 | Optical fiber ferrule ceramic sleeve |
| CN114345957A (en) * | 2022-03-21 | 2022-04-15 | 中国重型机械研究院股份公司 | Discharging air cooling device for cold rolling mill and air cooling method |
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Application publication date: 20220705 |