CN110202205A - Circle shear and control system - Google Patents

Circle shear and control system Download PDF

Info

Publication number
CN110202205A
CN110202205A CN201910451813.5A CN201910451813A CN110202205A CN 110202205 A CN110202205 A CN 110202205A CN 201910451813 A CN201910451813 A CN 201910451813A CN 110202205 A CN110202205 A CN 110202205A
Authority
CN
China
Prior art keywords
tensioner
circle shear
lower rotor
plc controller
moving frame
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.)
Granted
Application number
CN201910451813.5A
Other languages
Chinese (zh)
Other versions
CN110202205B (en
Inventor
许红兵
胡铜生
叶叶
洪小兵
陈强
吴良旺
朱兵
彭辉
沈宇
陈守信
杨志龙
胡涌
陈正华
许润国
王之平
张建平
黄纪斌
范晨阳
方健
于志坚
翟祥民
黄永冠
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.)
Jinwei Copper Branch Of Tongling Nonferrous Metals Group Co Ltd
Tongling Nonferrous Metals Group Co Ltd
Original Assignee
Jinwei Copper Branch Of Tongling Nonferrous Metals Group Co Ltd
Tongling Nonferrous Metals Group 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 Jinwei Copper Branch Of Tongling Nonferrous Metals Group Co Ltd, Tongling Nonferrous Metals Group Co Ltd filed Critical Jinwei Copper Branch Of Tongling Nonferrous Metals Group Co Ltd
Priority to CN201910451813.5A priority Critical patent/CN110202205B/en
Publication of CN110202205A publication Critical patent/CN110202205A/en
Application granted granted Critical
Publication of CN110202205B publication Critical patent/CN110202205B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D19/00Shearing machines or shearing devices cutting by rotary discs
    • B23D19/04Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs
    • B23D19/06Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs with several spaced pairs of shearing discs working simultaneously, e.g. for trimming or making strips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00Accessories for shearing machines or shearing devices
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054Input/output

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The present invention provides a kind of circle shear and control system, including rack and it is arranged on the rack upper, lower rotor, rack includes fixed frame and moving frame, on, one end rotary type of lower rotor is arranged on fixed frame, on, it is detachable rotation connection between the other end and moving frame of lower rotor, on, lower rotor construction is identical, upper rotor includes mandrel, it is nested with the outer shaft on mandrel, the setting tensioner of upper rotor free end, there is circumferentially spaced block in the periphery of tensioner, moving frame be equipped with it is upper, the bearing holder (housing, cover) of lower rotor free end adaptation, retaining ring is arranged in the outer end of bearing holder (housing, cover), spaced apart baffle is circumferentially set on the inner wall of retaining ring, the end face of retaining ring and cutter ring pads is driven to offset by tensioner to realize the quick positioning and locking of cutting ring, setting interlocked control does not occur in ensuring to run Displacement, the reliable spacing distance replaced cutting ring and adjust every group of cutting ring in time.

Description

Circle shear and control system
Technical field
The present invention relates to the cutting system of band, be especially by wind for coiled strip form band shearing cut out be divided into width Meet the apparatus system of the narrowband of market demands.
Background technique
Band is provided by upstream equipment milling train, cleaning line equipment, it is however generally that, market user's required band when using Width it is smaller and width is different, it is narrowband that this, which just needs the wider band of supplied materials cutting cutting, completes the cutting cutting and appoints The equipment of business is circle shear or is that roller is cut, and cutting ring is exactly correspondingly arranged on upper and lower rotor, and band passes through between two cutting rings When cut out and separated.Since the width of raw band volume is usually determining, and the strip width that downstream client needs is different, So coiled strip band is disposably generally cut cutting at least two bands in order to improve the utilization rate of stock roll and processing efficiency Material, this will correspond to configuration at least two groups cutting ring, situations such as according to customer requirement and tool wear, replacement on upper and lower rotor Cutter becomes more frequently, realizes the quick positioning of cutting ring and locking is to realize the key factor of equipment high efficiency rate production.More The serious is, arrange that multiple groups cutting ring requires the axial length of deflector roll longer on rotor, according to beam type structure by rotor It is mounted on the rack, the winding degree variation after necessarily causing overhanging section to accept power everywhere is huge, for high-precision thin wall type copper For matter band, cutting cuttings more than two cuttings is then difficult, i.e. nothing between two cutting rings in the cutting ring group far from rack Method realizes reliable and stable shearing cooperation.
Summary of the invention
The object of the present invention is to provide circle shear and control systems, it is ensured that realize the cutting cutting of at least two slit strips, Meet reliable shearing cooperation, reliably opens rack, while improving cutter changing efficiency.
To achieve the above object, the present invention is the following technical schemes are provided: a kind of circle shear, including rack and is arranged in rack On upper and lower rotor, rack includes fixed frame and moving frame, and one end rotary type of upper and lower rotor is arranged in fixed frame On, it is detachable rotation connection between the other end and moving frame of upper and lower rotor, upper and lower rotor constructs identical, upper rotor Including mandrel, the outer shaft being nested on mandrel, the setting tensioner of upper rotor free end is constituted between tensioner and upper rotor Circumferential limit, axial displacement cooperation, there are circumferentially spaced block, end face of the block towards fixed frame in the periphery of tensioner Perpendicular to axial direction and be in the same plane, moving frame along upper and lower rotor axial displacement, moving frame be equipped with it is upper, The bearing holder (housing, cover) of lower rotor free end adaptation, bearing holder (housing, cover) are installed on the bearing socket being supported on moving frame by bearing, bearing holder (housing, cover) Outer end retaining ring is set, be circumferential limit, axial movement cooperation, inner wall last week of retaining ring between retaining ring and moving frame To spaced apart baffle is arranged, block passes through from the idle area between baffle when block and baffle misplace, block It is turned to both when concordant with the inner side end of baffle and is opposite to each other position, tensioner is kept off when being displaced to side where fixed frame The inner side end of block and baffle reclines and drives side displacement where the circumferential fixed frame of locking, and the outer end face of retaining ring is pressed on On the end face of cutter ring pads.
By adopting the above technical scheme, the end face of retaining ring and cutter ring pads is driven to offset by tensioner to realize cutting ring Quickly positioning and locking, reliably open and close rack, replace cutting ring and adjust the spacing distance of every group of cutting ring in time.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the structure enlargement diagram of fixed frame in Fig. 1;
Fig. 3 is the structure enlargement diagram of moving frame in Fig. 1;
Fig. 4 is the partial electric control principle drawing in the present invention.
Fig. 5 is the partial electric control flow chart in the present invention.
Specific embodiment
In conjunction with Fig. 1 to 5, the present invention is described further:
A kind of circle shear, including rack and the upper and lower rotor 30,40 being arranged on the rack, rack includes fixed frame 10 With moving frame 20, one end rotary type of upper and lower rotor 30,40 is arranged on fixed frame 10, upper and lower rotor 30,40 it is another It is detachable rotation connection between one end and moving frame 20, the upper and lower construction of rotor 30,40 is identical, and upper rotor 30 includes core Axis 31, the outer shaft 32 being nested on mandrel 31 are constituted circumferential between the tensioner 33 and rotor 30 of the setting of 30 free end of rotor There are circumferentially spaced block 331 in limit, axial displacement cooperation, the periphery of tensioner 33, and block 331 is towards fixed frame 10 End face perpendicular to axial direction and be in the same plane, axial displacement of the moving frame 20 along upper and lower rotor 30,40, moving machine Frame 20 is equipped with the bearing holder (housing, cover) 21 being adapted to upper and lower rotor 30,40 free ends, and bearing holder (housing, cover) 21 is supported on movement by the installation of bearing 22 On bearing socket 23 in rack 20, retaining ring 50 is arranged in the outer end of bearing holder (housing, cover) 21, is between retaining ring 50 and moving frame 20 Circumferential limit, axial movement cooperation, are circumferentially arranged spaced apart baffle 51 on the inner wall of retaining ring 50, block 331 with support Block 331 passes through from the idle area between baffle 51 when block 51 misplaces, and the inner side end of block 331 and baffle 51 is flat It is turned to both when neat and is opposite to each other position, block 331 and baffle 51 when tensioner 33 is displaced to 10 place side of fixed frame Inner side end recline and retaining ring 50 driven to be displaced to 10 place side of fixed frame, the outer end face of retaining ring 50 is pressed on cutter On the end face of ring pads, to realize the quick positioning and locking of cutting ring;When needing replacing cutting ring, tensioner 33 is to far from fixed branch The displacement of 10 place side of frame, both block 331 and baffle 51 turn to when missing one another position block 331 between baffle 51 Idle area pass through, fixed frame 10 is separated with moving frame 20, to realize the quick-replaceable of cutting ring.
Further, inner hole is that the small-bore section of the tensioner 33 of stepped hole is socketed on mandrel 31 and is arranged between the two Seal assembly 311a, 311b, setting end cap 312 between the large aperture section and mandrel 31 of tensioner 33, the step surface of tensioner 33, The annular region A and hydraulic circuit A1 surrounded between the inner face of end cap 312, the large aperture section of tensioner 33 and mandrel 31 connects Logical, hydraulic circuit A1 is connected with the first solenoid valve.Hydraulic circuit A1 to annular region A injection hydraulic oil drive tensioner 33 to The displacement of 10 place side of fixed frame;When hydraulic circuit A1 oil return, drive tensioner 33 to separate from the compression spring on mandrel 31 The displacement of 10 place side of fixed frame.
Further, be arranged between the both ends of outer shaft 32 and mandrel 31 sealing element 313a, 313b and sealing element 313a, Annular compartment B between 313b is connected with pressure oil circuit B1, and pressure oil circuit B1 is connected with second solenoid valve.Pressure oil circuit B1 to Hydraulic oil is injected in annular compartment B, for controlling being radially expanded for outer shaft.
Circle shear usually will appear the case where moving frame is not opened when replacing cutter in production, the reason is that fixed frame On tensioner 33 misplace with the retaining ring 50 on moving frame, when the pressure condition in annular region A is not introduced into When the interlock condition of unit motor operation, upper and lower rotor operation is rotated, between the retaining ring 50 in tensioner 33 and moving frame The stiction of formation is not enough to overcome the tangential force of upper and lower rotor operation rotation to generate displacement.In addition, circle shear PLC is controlled The main logic control for completing rotor up and down of device 70 processed, machine set PLC controller 60 mainly completes motor drive and unit is run, and two A control system is mutually indepedent, lacks communication and interlocking.
Circle shear PLC controller 70 is connected to instruction and issues the movement of signal control relay K 71, is controlled by relay K 71 First solenoid valve obtains electric, so that hydraulic circuit A1 is injected hydraulic oil to annular region A, when pressure reaches setting value in annular region A Pressure switch P 72 is acted, at this time 73 coil work once electrified of intermediate relay J, and 73 normally opened contact of intermediate relay J closure is moved It is transferred to machine set PLC controller 60 as signal, after machine set PLC controller 60 receives the action signal of intermediate relay J 73, According to the technological requirements and logic control, completion communication form interlocking, and driving motor drives upper and lower rotor 30,40 to run rotation.It is logical It crosses relay K 71 and pressure switch P 72 and forms series loop control intermediate relay J 73, ensure that intermediate relay J 73 It acts and pressure reaches setting value in annular region A, so that tensioner 33 and retaining ring 50 offset and can rotate synchronously And it is not subjected to displacement;Circle shear PLC controller 70 and machine set PLC controller 60, it is complete by intermediate relay between this 2 PLC It is transmitted at signal, realizes the interlocking of fixed frame 10 and moving frame 20.
Hydraulic circuit A1 entrance side installs pressure switch 72, installs intermediate relay J in 70 cabinet of circle shear PLC controller 73 normally opened contact of 73, intermediate relay J is connected in machine set PLC system controller 60, forms circle shear PLC controller 70 and machine Information transmitting between group PLC system controller 60.The action signal of acquisition, by handling, is used in machine set PLC controller 60 The interlocked control of unit motor operation is controlled, guarantees that relative displacement does not occur for tensioner 33 and retaining ring 50 in operation.
A kind of circle shear control system, comprising the following steps:
A, 70 output command signal of circle shear PLC controller control relay K71 movement, when circle shear PLC controller 70 The action signal of pressure switch P72 then performs the next step when collecting hydraulic circuit pressure setting value, otherwise to hydraulic circuit into Row is checked, is resurveyed after rectification;
B, after intermediate relay J73 is attracted, closed action signal is transferred to the control of machine set PLC system by auxiliary contact Device 60;
C, machine set PLC controller 60 is according to the technological requirements with logical relation the action signal of reception intermediate relay J73 Circle shear motor operation is controlled as condition.

Claims (6)

1. a kind of circle shear, including rack and the upper and lower rotor (30,40) being arranged on the rack, it is characterised in that: rack includes One end rotary type of fixed frame (10) and moving frame (20), upper and lower rotor (30,40) is arranged on fixed frame (10), It is detachable rotation connection between the other end and moving frame (20) of upper and lower rotor (30,40), upper and lower rotor (30,40) Construct identical, upper rotor (30) includes mandrel (31), the outer shaft (32) being nested on mandrel (31), upper rotor (30) free end Circumferential limit, axial displacement cooperation are constituted between the tensioner (33) and upper rotor (30) of setting, the periphery of tensioner (33) has Circumferentially spaced block (331), end face of the block (331) towards fixed frame (10) is perpendicular to axially and positioned at same flat In face, moving frame (20) along upper and lower rotor (30,40) axial displacement, moving frame (20) be equipped with and upper and lower rotor The bearing holder (housing, cover) (21) of (30,40) free end adaptation, bearing holder (housing, cover) (21) are supported on moving frame (20) by bearing (22) installation On bearing socket (23), retaining ring (50) are arranged in the outer end of bearing holder (housing, cover) (21), are between retaining ring (50) and moving frame (20) Circumferential limit, axial movement cooperate, and spaced apart baffle (51), block is circumferentially arranged on the inner wall of retaining ring (50) (331) and baffle (51) misplace when block (331) pass through from the idle area between baffle (51), block (331) with support It is turned to both when the inner side end of block (51) is concordant and is opposite to each other position, tensioner (33) is to side where fixed frame (10) Block (331) and the inner side end of baffle (51) recline and drive retaining ring (50) to side where fixed frame (10) when displacement Displacement, the outer end face of retaining ring (50) are pressed on the end face of cutter ring pads.
2. circle shear according to claim 1, it is characterised in that: inner hole is the small-bore section of the tensioner (33) of stepped hole It is socketed on mandrel (31) and seal assembly (311a, 311b) is set between the two, the large aperture section and mandrel of tensioner (33) (31) between be arranged end cap (312), the step surface of tensioner (33), the inner face of end cap (312), tensioner (33) large aperture Section is connected to the annular region (A) surrounded between mandrel (31) with hydraulic circuit (A1), the hydraulic circuit (A1) and the first electromagnetism Valve is connected.
3. circle shear according to claim 1, it is characterised in that: be arranged between the both ends and mandrel (31) of outer shaft (32) Annular compartment (B) between sealing element (313a, 313b) and sealing element (313a, 313b) is connected with pressure oil circuit (B1), the pressure Power oil circuit (B1) is connected with second solenoid valve.
4. a kind of control system of circle shear described in claims 1 or 2 or 3, it is characterised in that: circle shear PLC controller (70) it is connected to instruction and issues signal control relay K (71) movement, control the first solenoid valve by relay K (71) and obtain electric, make liquid Hydraulic oil, pressure switch P (72) when annular region (A) interior pressure reaches setting value are injected to annular region (A) in pressure oil road (A1) Movement, intermediate relay J (73) coil work once electrified, intermediate relay J (73) normally opened contact closure, action signal are transmitted at this time To machine set PLC controller (60), after machine set PLC controller (60) receives the action signal of (73) intermediate relay J, according to work Skill requires and logic control, completes communication and forms interlocking, driving motor drives upper and lower rotor (30,40) operation rotation.
5. circle shear system according to claim 4, it is characterised in that: hydraulic circuit (A1) entrance side installs pressure switch (72), intermediate relay J (73) are installed in circle shear PLC controller (70) cabinet, intermediate relay J (73) normally opened contact is connected to machine In group PLC controller (60), the information formed between circle shear PLC controller (70) and machine set PLC controller (60) is transmitted.
6. circle shear system according to claim 4, comprising the following steps:
A, circle shear PLC controller (70) output command signal control relay K (71) movement, when circle shear PLC controller (70) action signal for collecting pressure switch P (72) when hydraulic circuit pressure reaches setting value then performs the next step, otherwise right Hydraulic circuit checked, rectify and improve after resurvey;
B, after intermediate relay J (73) is attracted, closed action signal is transferred to machine set PLC system controller by auxiliary contact (60);
C, machine set PLC controller (60) is according to the technological requirements with logical relation the action signal of reception intermediate relay J (73) Circle shear motor operation is controlled as condition.
CN201910451813.5A 2019-05-28 2019-05-28 Circle shear and control system Active CN110202205B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910451813.5A CN110202205B (en) 2019-05-28 2019-05-28 Circle shear and control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910451813.5A CN110202205B (en) 2019-05-28 2019-05-28 Circle shear and control system

Publications (2)

Publication Number Publication Date
CN110202205A true CN110202205A (en) 2019-09-06
CN110202205B CN110202205B (en) 2020-09-01

Family

ID=67789116

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910451813.5A Active CN110202205B (en) 2019-05-28 2019-05-28 Circle shear and control system

Country Status (1)

Country Link
CN (1) CN110202205B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112108706A (en) * 2020-08-13 2020-12-22 北京首钢自动化信息技术有限公司 Pinch roll pressure control method and device in shearing process of roll-cutting type double-sided shear

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158002A (en) * 1987-10-30 1992-10-27 Braner, Inc. Shiftable drive turret slitter
CN201638889U (en) * 2010-03-23 2010-11-17 东莞市鸿宝锂电科技有限公司 Cutter device of slitting machine
CN201833058U (en) * 2010-08-26 2011-05-18 江苏亨特宏业重工有限公司 Rapid tool changing device for circle shears
CN202571446U (en) * 2011-12-16 2012-12-05 大连三高集团有限公司 Quick-change shear blade device of disc shears
JP5403126B1 (en) * 2012-08-30 2014-01-29 山王鉄工株式会社 Slitting device
CN205764143U (en) * 2016-06-02 2016-12-07 佛山市南海炜业金属分条有限公司 A kind of metal tape cutter being easily changed cutting knife
CN108971612A (en) * 2018-09-10 2018-12-11 江苏新益机械有限公司 A kind of down-regulation type high speed thin plate slitter
CN208879806U (en) * 2018-08-23 2019-05-21 佛山市南海炜业金属分条有限公司 It is a kind of for clamping the clamping device of metal coil tape cutter cutter shaft

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158002A (en) * 1987-10-30 1992-10-27 Braner, Inc. Shiftable drive turret slitter
CN201638889U (en) * 2010-03-23 2010-11-17 东莞市鸿宝锂电科技有限公司 Cutter device of slitting machine
CN201833058U (en) * 2010-08-26 2011-05-18 江苏亨特宏业重工有限公司 Rapid tool changing device for circle shears
CN202571446U (en) * 2011-12-16 2012-12-05 大连三高集团有限公司 Quick-change shear blade device of disc shears
JP5403126B1 (en) * 2012-08-30 2014-01-29 山王鉄工株式会社 Slitting device
CN205764143U (en) * 2016-06-02 2016-12-07 佛山市南海炜业金属分条有限公司 A kind of metal tape cutter being easily changed cutting knife
CN208879806U (en) * 2018-08-23 2019-05-21 佛山市南海炜业金属分条有限公司 It is a kind of for clamping the clamping device of metal coil tape cutter cutter shaft
CN108971612A (en) * 2018-09-10 2018-12-11 江苏新益机械有限公司 A kind of down-regulation type high speed thin plate slitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112108706A (en) * 2020-08-13 2020-12-22 北京首钢自动化信息技术有限公司 Pinch roll pressure control method and device in shearing process of roll-cutting type double-sided shear
CN112108706B (en) * 2020-08-13 2022-04-12 北京首钢自动化信息技术有限公司 Pinch roll pressure control method and device in shearing process of roll-cutting type double-sided shear

Also Published As

Publication number Publication date
CN110202205B (en) 2020-09-01

Similar Documents

Publication Publication Date Title
CN103889626B (en) Drum shears
CN110202205A (en) Circle shear and control system
CN204546583U (en) A kind of rotary film cutting device
CN103170673B (en) Can double direction shear or the unidirectional drum type flying shears repeatedly sheared and control method thereof
CN107866500A (en) For producing the machine of spirotallic gasket
US3683734A (en) Roller bearing
EP3427352B1 (en) Slip-ring transmitter for rotary-table machines
CN201118392Y (en) Digital control four-axis automatic wire coiler
US1984737A (en) Die machine
EP1827830B1 (en) Device and method for removing the jacket from cliché rollers in printing machines
CN104791526A (en) Mechanical type ultra-high pressure and ultra-low pressure urgent intercepting valve
CN200938841Y (en) Feeder of hobbing diffusion machine
CN201979157U (en) Gap adjusting device for knife disc of disc shears
CN109226477B (en) Wire cutting machine
CN103909303A (en) Power device of cutter for stainless steel tubes
WO2020159845A1 (en) Saw assembly with linear-rotary motor
CN216658201U (en) Automatic cutting machine capable of rapidly installing cutting die
CN104985250A (en) A roll-press steel belt online cutting device and a cutting method thereof
CN207806736U (en) A kind of 800 tons of billet shears
CN105397851A (en) Cutter device for automatic rice noodle shearing machine
JPH10113856A (en) Brush device for grinding front and rear sides of steel strip
CN206799810U (en) A kind of yarn, which is chopped, cuts erecting device
CN203098799U (en) Clutch speed changer of plastic wire drawing machine
Priya et al. Automatic Paper Slitter and Rewinding Machine
CN204818244U (en) Device is tailor on line to roll -in steel band

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant