CN214735967U - Clamping structure of cold rolled steel working roll in induction heat treatment furnace - Google Patents

Clamping structure of cold rolled steel working roll in induction heat treatment furnace Download PDF

Info

Publication number
CN214735967U
CN214735967U CN202120270672.XU CN202120270672U CN214735967U CN 214735967 U CN214735967 U CN 214735967U CN 202120270672 U CN202120270672 U CN 202120270672U CN 214735967 U CN214735967 U CN 214735967U
Authority
CN
China
Prior art keywords
adjusting
heat treatment
clamping
rolled steel
treatment furnace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120270672.XU
Other languages
Chinese (zh)
Inventor
牛德峰
付晓屹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiangyang yufengde Technology Co.,Ltd.
Original Assignee
Xiangyang Yufengde Heat Treatment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiangyang Yufengde Heat Treatment Co ltd filed Critical Xiangyang Yufengde Heat Treatment Co ltd
Priority to CN202120270672.XU priority Critical patent/CN214735967U/en
Application granted granted Critical
Publication of CN214735967U publication Critical patent/CN214735967U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • Heat Treatment Of Articles (AREA)

Abstract

The utility model discloses a tight structure of clamp of cold-rolled steel working roll in response heat treatment furnace, including strutting arrangement, shift unit, revolve double-layered device, adjusting device and induction system, adjusting device presss from both sides the device through flexible ejector pin with revolving and is connected, revolves to press from both sides the device and is connected with shift unit through dislocation splint, and induction system passes through the position inductor and is connected with shift unit, and shift unit passes through the convex slide rail and is connected with strutting arrangement. The utility model discloses a detector realizes the shape and the model judgement of working roll, carry out the centre gripping to the working roll through dislocation splint, realize axle support arc board position control through flexible ejector pin, realize moving the rotation that the board revolved the ring through adjusting the spiral shaft, realize the adaptation of different specification working rolls through adjusting the backing plate, it is removable to adjust the backing plate, realize going into the chucking with the pad of adjusting the backing plate through pushing away the pull post, it realizes the crisscross rotation of double-frame spiral arm to revolve the platform through the connection, realize the expansion of clamping-force through double-frame spiral arm, it is more firm to make the centre gripping, it carries out rolling processing to be convenient for.

Description

Clamping structure of cold rolled steel working roll in induction heat treatment furnace
Technical Field
The utility model relates to an anchor clamps field specifically is a tight structure of clamp of cold-rolled steel working roll in induction heat treatment furnace.
Background
The cold rolled steel is the steel produced by cold rolling, and has the following advantages: the induction heat treatment is a surface heat treatment process, and the principle of the induction heat treatment is that the induction current is used for locally heating a workpiece, and the induction heat treatment is mainly used for surface quenching, local annealing or tempering, and sometimes integral quenching and tempering.
The existing clamping structure can only clamp a working roll of one specification, cannot adapt to clamping of working rolls of other specifications, is easily affected under high heat of a heat treatment furnace, and cannot clamp stably.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a tight structure of clamp of cold-rolled steel working roll in induction heat treatment furnace can effectively solve the background art in the tight structure of clamp only can press from both sides the working roll of a specification tightly, can not adapt to the centre gripping of other specification working rolls, easily influenced under the high fever of heat treatment furnace, the stable problem of unable centre gripping.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a clamping structure of a cold rolled steel working roll in an induction heat treatment furnace comprises a supporting device, a shifting device, a rotary clamping device, an adjusting device and an induction device, wherein the supporting device comprises a furnace body and a hollowed-out strut, the furnace body is of a hollow structure, the peripheral side surface of the hollowed-out strut is connected with one surface of the furnace body, the shifting device comprises convex slide rails, telescopic slide bars, a connecting rotary table and double-frame rotary arms, a plurality of convex slide rails are respectively connected with one surface of the hollowed-out strut, one surface of the telescopic slide bars is respectively in sliding fit with one surface of the convex slide rails, one surface of the connecting rotary table is respectively connected with one surface of the telescopic slide bars, one surface of the double-frame rotary arms is respectively in rotating fit with one surface of the connecting rotary table, the rotary clamping device comprises a dislocation clamping plate, a shaft head and a roll neck, one surface of the dislocation clamping plate is respectively connected with one surface of the double-frame rotary arms, the side surfaces of the plurality of shaft heads are respectively connected with one surface of a staggered clamping plate, one surface of the roller neck is respectively connected with one surface of the plurality of shaft heads, the adjusting device comprises a telescopic ejector rod, a shaft supporting arc plate, an adjusting rotating shaft, a plate moving rotating ring and a push-pull column, one surface of the telescopic ejector rod is respectively connected with one surface of the plurality of staggered clamping plates, one surface of the shaft supporting arc plate is respectively connected with one surface of the plurality of telescopic ejector rods, one surface of the adjusting rotating shaft is respectively matched with one surface of the plurality of staggered clamping plates in a rotating mode, one surface of the plurality of plate moving rotating rings is respectively connected with one surface of the plurality of adjusting rotating shafts, the side surfaces of the periphery of the push-pull column are respectively connected with one surface of the plurality of plate moving rotating rings, the sensing device comprises a position sensor, and one surface of the plurality of position sensors is respectively connected with one surface of a convex sliding rail.
Preferably, strutting arrangement still includes the response door that opens and shuts, and is a plurality of a response door that opens and shuts surface is connected with a furnace body surface respectively, and wherein, the total two of response door that opens and shuts, the response door that opens and shuts is used for being convenient for carry on hot working's cold-rolled steel business turn over material, and the furnace body is used for carrying out thermal treatment processing, and the fretwork strut is used for installing other devices.
Preferably, the shifting device further comprises a reinforcing step platform, wherein the reinforcing step platform is connected with the surfaces of the double-frame swing arms respectively, the number of the convex sliding rails is two, the convex sliding rails provide sliding spaces for the telescopic sliding rods, the number of the telescopic sliding rods is four, the telescopic sliding rods are used for adjusting the positions and the heights of the rotary clamping devices, the number of the rotary platforms is eight, the rotary platforms are connected and used for controlling the rotation of the rotary clamping devices, the number of the double-frame swing arms is eight, the double-frame swing arms are used for expanding the clamping force of the rotary clamping devices, the number of the reinforcing step platform is eight, and the reinforcing step platform is used for reinforcing the connection of the double-frame swing arms and the dislocation clamping plates.
Preferably, the rotary clamping device further comprises a roller body, one surface of the roller body is respectively connected with one surface of the plurality of roller necks, eight staggered clamping plates are used for clamping the working roller, the shaft heads are convenient to clamp, the roller necks expand the rotating rolling force, and the roller body is used for rolling.
Preferably, the adjusting device further comprises adjusting base plates, one surface of each of the adjusting base plates is connected with one surface of each of the push-pull columns, the total number of the telescopic ejector rods is sixteen, the telescopic ejector rods are used for adjusting the positions of the shaft support arc plates, the total number of the shaft support arc plates is sixteen, the shaft support arc plates are used for adapting to working rollers of different specifications, the total number of the adjusting rotary shafts is thirty two, the adjusting rotary shafts are used for mounting the plate moving rotary rings, the total number of the plate moving rotary rings is thirty two, the position of the adjusting base plates is controlled by the plate moving rotary rings, the total number of the push-pull columns is thirty two, the push-pull columns are used for pushing the adjusting base plates into the staggered clamping plates, the total number of the adjusting base plates is thirty two, and the adjusting base plates are used for adapting to different models of the working rollers.
Preferably, the sensing device further comprises detectors, one surfaces of the detectors are respectively connected with one surfaces of the staggered clamping plates, the number of the position sensors is two, the position sensors are used for sensing the positions of the working rolls, the number of the detectors is eight, and the detectors are used for detecting the shapes and the models of the working rolls.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses in, realize the position location of work roller through the position inductor, realize revolving the removal and the altitude mixture control of pressing from both sides the device through flexible slide bar, realize moving dislocation splint to spindle nose department through its regulation.
2. The utility model discloses in, realize the shape and the model judgement of working roll through the detector to in order to match the centre gripping scheme of adaptation in order to reach best centre gripping effect, carry out the centre gripping to the working roll through dislocation splint, realize axle support arc board position control through flexible ejector pin, through adjusting the rotation that the axle realized moving the board and revolve the ring, realize the adaptation of different specification working rolls through adjusting the backing plate, the adjusting the backing plate can be changed, realize going into the chucking with the pad of adjusting the backing plate through the push-and-pull post.
3. The utility model discloses in, through connecting the crisscross rotation that the platform realized the double-frame spiral arm soon, realize the expansion of clamping-force through the double-frame spiral arm for the centre gripping is more firm, and it carries out rolling processing of being convenient for.
Drawings
FIG. 1 is a schematic view of the external overall structure of a clamping structure of a cold rolled steel work roll in an induction heat treatment furnace according to the present invention;
FIG. 2 is a front view of a clamping structure of a cold rolled steel work roll in an induction heat treatment furnace according to the present invention;
FIG. 3 is a sectional view A-A of FIG. 2 showing a clamping structure of a cold rolled steel work roll in an induction heat treatment furnace according to the present invention;
fig. 4 is a sectional view B-B in fig. 2 showing a clamping structure of a cold rolled steel work roll in an induction heat treatment furnace according to the present invention.
In the figure: 100. a support device; 110. a furnace body; 120. a hollow support frame; 130. induction opening and closing the door; 200. A displacement device; 210. a convex slide rail; 220. a telescopic slide bar; 230. connecting the rotary table; 240. a double-frame swing arm; 250. reinforcing the terraced; 300. a rotating clamp device; 310. a staggered splint; 320. a shaft head; 330. a roll neck; 340. a roll body; 400. an adjustment device; 410. a telescopic ejector rod; 420. the shaft supports the arc plate; 430. adjusting the rotating shaft; 440. moving the plate and rotating the ring; 450. pushing and pulling the column; 460. adjusting the base plate; 500. an induction device; 510. A position sensor; 520. and a detector.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1-4, the present invention relates to a clamping structure of a cold rolled steel working roll in an induction heat treatment furnace, comprising a supporting device 100, a shifting device 200, a rotary clamping device 300, an adjusting device 400 and an induction device 500, wherein the supporting device 100 comprises a furnace body 110 and a hollow strut 120, the furnace body 110 is of a hollow structure, the peripheral side of the hollow strut 120 is connected with a surface of the furnace body 110, the shifting device 200 comprises a convex slide rail 210, a plurality of telescopic slide bars 220, a connecting rotary table 230 and a double-frame rotary arm 240, a surface of the plurality of convex slide rails 210 is connected with a surface of the hollow strut 120, a surface of the plurality of telescopic slide bars 220 is slidably engaged with a surface of the plurality of convex slide rails 210, a surface of the plurality of connecting rotary tables 230 is connected with a surface of the plurality of telescopic slide bars 220, a surface of the double-frame rotary arm 240 is rotatably engaged with a surface of the plurality of connecting tables 230, the rotary clamping device 300 comprises a dislocation clamping plate 310, a displacement device 200, a displacement device, a displacement device, a device, and a device, a device 300, a device, and a device, a shaft head 320 and a roller neck 330, a surface of the plurality of offset clamping plates 310 is respectively connected with a surface of the plurality of double-frame swing arms 240, peripheral sides of the plurality of shaft heads 320 are respectively connected with a surface of the offset clamping plates 310, a surface of the roller neck 330 is respectively connected with a surface of the plurality of shaft heads 320, the adjusting device 400 comprises a telescopic ejector rod 410, a shaft support arc plate 420, an adjusting rotary shaft 430, a plate moving rotary ring 440 and a push-pull column 450, a surface of the plurality of telescopic ejector rod 410 is respectively connected with a surface of the plurality of offset clamping plates 310, a surface of the plurality of plate moving rotary rings 440 is respectively connected with a surface of the plurality of offset clamping plates 310, peripheral sides of the plurality of push-pull columns 450 are respectively connected with a surface of the plurality of plate moving rotary rings 440, the sensing device 500 comprises a position sensor 510, a surface of the plurality of position sensors 510 is connected to a surface of the convex sliding rail 210.
Referring to fig. 1-1, the supporting device 100 further includes two induction opening/closing doors 130, and a surface of each of the induction opening/closing doors 130 is connected to a surface of the furnace body 110, wherein the induction opening/closing doors 130 are used for facilitating feeding and discharging of cold rolled steel for hot working, the furnace body 110 is used for heat treatment, and the hollow strut 120 is used for installing other devices.
Referring to fig. 1 to 3, the shifting device 200 further includes a reinforcing step 250, a surface of the reinforcing step 250 is connected to a surface of each of the double-frame swing arms 240, wherein two convex sliding rails 210 are provided, the convex sliding rails 210 provide a sliding space for the telescopic sliding rods 220, the telescopic sliding rods 220 include four telescopic sliding rods 220, the telescopic sliding rods 220 are used for adjusting the position and height of the swing clamp device 300, eight connecting swing tables 230 are provided, the connecting swing tables 230 are used for controlling the rotation of the swing clamp device 300, eight double-frame swing arms 240 are provided, the double-frame swing arms 240 are used for expanding the clamping force of the swing clamp device 300, the number of the reinforcing steps 250 is eight, and the reinforcing step 250 is used for reinforcing the connection between the double-frame swing arms 240 and the staggered clamping plates 310.
Referring to fig. 1-4, the rotating clamping device 300 further includes a roller body 340, wherein one surface of the roller body 340 is connected to a plurality of surfaces of the roller necks 330, respectively, eight staggered clamp plates 310 are provided, the staggered clamp plates 310 are used for clamping the working rollers, the spindle heads 320 are used for facilitating clamping, the roller necks 330 expand the rotating rolling force, and the roller body 340 is used for rolling.
Referring to fig. 1-3, the adjusting device 400 further includes an adjusting pad 460, wherein a surface of the adjusting pad 460 is connected to a surface of each of the push-pull columns 450, wherein the number of the telescopic rods 410 is sixteen, the number of the telescopic rods 410 is used to adjust the position of the shaft support arc plate 420, the number of the shaft support arc plate 420 is sixteen, the shaft support arc plate 420 is used to adapt to the working rolls of different specifications, the number of the adjusting rotary shafts 430 is thirty-two, the adjusting rotary shafts 430 are used to mount the plate moving rotary rings 440, the number of the plate moving rotary rings 440 is thirty-two, the position of the adjusting pad 460 is controlled by the plate moving rotary rings 440, the number of the push-pull columns 450 is thirty-two, the push-pull columns 450 are used to push the adjusting pad 460 into the dislocated clamping plate 310, the number of the adjusting pad 460 is thirty-two, and the adjusting pad 460 is used to adapt to different models of the working rolls.
Referring to fig. 1-1, the sensing device 500 further includes two position sensors 510, wherein one surface of each of the plurality of detectors 520 is connected to one surface of each of the plurality of staggered clamp plates 310, and the number of the position sensors 510 is eight, and the number of the detectors 520 is two.
The utility model discloses the theory of operation:
referring to fig. 1-4, the present invention relates to a clamping structure of a cold rolled steel working roll in an induction heat treatment furnace, wherein a position sensor 510 can detect the position of the working roll, and according to the information provided by the position sensor, the position sensor controls a telescopic sliding rod 220 to slide in a convex sliding rail 210 to the upper side of the working roll, and the telescopic sliding rod 220 extends and retracts to move a dislocated clamp plate 310 to a shaft head 320.
Detector 520 on the splint 310 of misplacing can scan out the shape and the model that need carry out the work roll of centre gripping, so that match the centre gripping scheme of adaptation in order to reach best centre gripping effect, the scanning is accomplished, can carry out the centre gripping according to specifically, if spindle nose 320 diameter is less than the splint 310 of misplacing greatly and presss from both sides the crack diameter, flexible ejector pin 410 holds in the palm arc plate 420 jack-up with the axle, reduce the diameter, in addition, the steerable board that moves of regulation spiral shaft 430 revolves the ring 440 and rotates, move adjusting plate 460 to axle support arc plate 420 below, push away pull post 450 and impel, fill in the chucking in the splint 310 of misplacing with adjusting plate 460, thereby adapt to the less work roll of spindle nose 320 diameter.
After the model is matched, the connecting rotary table 230 drives the double-frame rotary arm 240 to rotate in a staggered manner, and the adjusted staggered clamping plate 310 firmly clamps the shaft head 320 of the working roll, so that the rolling processing is facilitated.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The clamping structure of the cold rolled steel working roll in the induction heat treatment furnace comprises a supporting device (100), a shifting device (200), a rotary clamping device (300), an adjusting device (400) and a sensing device (500), and is characterized in that: the supporting device (100) comprises a furnace body (110) and a hollow support frame (120), the furnace body (110) is of a hollow structure, the peripheral side surface of the hollow support frame (120) is connected with one surface of the furnace body (110), the shifting device (200) comprises a plurality of convex sliding rails (210), a plurality of telescopic sliding rods (220), a connecting rotary table (230) and double rotary arms (240), one surface of each of the plurality of convex sliding rails (210) is connected with one surface of the hollow support frame (120), one surface of each of the plurality of telescopic sliding rods (220) is in sliding fit with one surface of each of the plurality of convex sliding rails (210), one surface of each of the plurality of connecting rotary tables (230) is connected with one surface of each of the plurality of telescopic sliding rods (220), one surface of each of the plurality of double rotary arms (240) is in rotating fit with one surface of the plurality of connecting rotary tables (230), and the rotary clamping device (300) comprises a dislocation clamping plate (310), a shaft head (320) and a roller neck (330), a plurality of dislocation splint (310) a surface respectively with a plurality of double spiral arm (240) surface connections, a plurality of spindle nose (320) week side respectively with dislocation splint (310) a surface connection, a roller neck (330) surface respectively with a plurality of spindle nose (320) surface connections, adjusting device (400) includes flexible ejector pin (410), axle support arc board (420), adjust and revolve axle (430), move board swivel (440) and push-and-pull post (450), a plurality of flexible ejector pin (410) a surface respectively with a plurality of dislocation splint (310) a surface connection, a plurality of axle support arc board (420) a surface respectively with a plurality of flexible ejector pin (410) a surface connection, a plurality of adjust swivel (430) a surface respectively with a plurality of splint (310) a surface rotation cooperation that misplaces, a plurality of move board swivel (440) a surface respectively with a plurality of regulation swivel (430) a surface connection, the side surfaces of the push-pull columns (450) are respectively connected with a plurality of movable plate rotating rings (440) on one surface, the sensing device (500) comprises a position sensor (510), and the surface of the position sensor (510) is respectively connected with the surface of the convex sliding rail (210).
2. The clamping structure of the cold rolled steel work roll in the induction heat treatment furnace according to claim 1, characterized in that: the supporting device (100) further comprises induction opening and closing doors (130), and one surface of each of the induction opening and closing doors (130) is connected with one surface of the furnace body (110).
3. The clamping structure of the cold rolled steel work roll in the induction heat treatment furnace according to claim 1, characterized in that: the shifting device (200) further comprises a reinforcing step (250), and one surface of a plurality of reinforcing steps (250) is respectively connected with one surface of a plurality of double-frame spiral arms (240).
4. The clamping structure of the cold rolled steel work roll in the induction heat treatment furnace according to claim 1, characterized in that: the rotary clamping device (300) further comprises a roller body (340), and one surface of the roller body (340) is connected with one surface of the plurality of roller necks (330).
5. The clamping structure of the cold rolled steel work roll in the induction heat treatment furnace according to claim 1, characterized in that: the adjusting device (400) further comprises adjusting base plates (460), and one surface of each adjusting base plate (460) is connected with one surface of each push-pull column (450).
6. The clamping structure of the cold rolled steel work roll in the induction heat treatment furnace according to claim 1, characterized in that: the induction device (500) further comprises a plurality of detectors (520), and one surface of each of the plurality of detectors (520) is connected with one surface of each of the plurality of staggered clamping plates (310).
CN202120270672.XU 2021-02-01 2021-02-01 Clamping structure of cold rolled steel working roll in induction heat treatment furnace Active CN214735967U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120270672.XU CN214735967U (en) 2021-02-01 2021-02-01 Clamping structure of cold rolled steel working roll in induction heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120270672.XU CN214735967U (en) 2021-02-01 2021-02-01 Clamping structure of cold rolled steel working roll in induction heat treatment furnace

Publications (1)

Publication Number Publication Date
CN214735967U true CN214735967U (en) 2021-11-16

Family

ID=78642930

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120270672.XU Active CN214735967U (en) 2021-02-01 2021-02-01 Clamping structure of cold rolled steel working roll in induction heat treatment furnace

Country Status (1)

Country Link
CN (1) CN214735967U (en)

Similar Documents

Publication Publication Date Title
US3915763A (en) Method for heat-treating large diameter steel pipe
RU2092460C1 (en) Method of conveyance of glass plate and device for its realization
EP1006330A2 (en) Pipe moving method, apparatus and system
CN214735967U (en) Clamping structure of cold rolled steel working roll in induction heat treatment furnace
CN206993489U (en) A kind of sheet metal blanking automatic production line
CN113649729B (en) Heating device is used in production of roll neck
CA1084263A (en) Apparatus for heat treatment of material
US4670036A (en) Conveying, supporting and shaping glass sheets
CN211471486U (en) Automatic turning device for quenching tank
CN212442657U (en) Annealing plate flattening treatment equipment
US5295379A (en) Vertical piercer mill
CN203900119U (en) Embedded lifting transferring device for roller table
CN209006413U (en) A kind of embedded lifting material transfering device of roller-way
JP3711727B2 (en) Coil transfer device and transfer method
FI110865B (en) Transporting and shaping of glass sheets
CN220942555U (en) Steel billet conveying, buckling and heat preserving device
CN212049058U (en) Steel pipe conveyer
CN214612667U (en) Heat treatment device suitable for roller assembly
JP2594849B2 (en) Finishing method of annular plate
CN210496596U (en) Roller press convenient to adjust frame
CN216150681U (en) Stepping type cooling bed for pre-bending treatment of light rail section steel
CN219899780U (en) Hydraulic forming device for welded steel pipe
CN216977549U (en) Round steel fixing mechanism for round steel heating furnace
CN115976318A (en) Shaft part heat treatment process and tool thereof
CN117583530A (en) Stainless steel bar forging device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 441000 Qiaoying Industrial Park, Zhonghang Avenue, Fancheng District, Xiangyang City, Hubei Province

Patentee after: Xiangyang yufengde Technology Co.,Ltd.

Address before: 441000 Qiaoying Industrial Park, Zhonghang Avenue, Fancheng District, Xiangyang City, Hubei Province

Patentee before: Xiangyang yufengde heat treatment Co.,Ltd.

CP01 Change in the name or title of a patent holder