CN209516857U - A kind of Twisting machine - Google Patents

A kind of Twisting machine Download PDF

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Publication number
CN209516857U
CN209516857U CN201920367095.9U CN201920367095U CN209516857U CN 209516857 U CN209516857 U CN 209516857U CN 201920367095 U CN201920367095 U CN 201920367095U CN 209516857 U CN209516857 U CN 209516857U
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CN
China
Prior art keywords
workbench
twisting machine
clamp
stubborn line
sliding
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Application number
CN201920367095.9U
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Chinese (zh)
Inventor
刘林
由振东
张光强
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WEIFANG WANLONG ELECTRIC Ltd BY SHARE Ltd
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WEIFANG WANLONG ELECTRIC Ltd BY SHARE Ltd
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Abstract

The utility model discloses a kind of Twisting machines, including workbench, the Workpiece clamping device being slidably mounted on workbench, it is installed on the rotary motive power device on workbench and for driving stubborn line apparatus rotation, for more copper wire on workpiece to be twisted into one stubborn line apparatus, it further include being installed on linear advancement device on workbench, synchronizing linkage is provided between linear advancement device and rotary motive power device, linear advancement device is used for the driving Workpiece clamping device in the rotation of stubborn line apparatus and moves in a straight line.The utility model Twisting machine structure is simple, at low cost;Manpower is replaced using stubborn line apparatus, can also screw out one beautiful twisted shape copper wire compared with thick copper lines in time;Working efficiency can be improved simultaneously, reduce the labor intensity of personnel;And suitability is strong, is particularly suitable for stator and reserves screwing for copper wire end.

Description

A kind of Twisting machine
Technical field
The utility model belongs to Twisting machine technical field, more particularly to a kind of suitable for screwing the reserved copper wire of generator unit stator The Twisting machine of end.
Background technique
It can be needed there are six roots of sensation copper wire end by three copper corresponding with generator three after generator unit stator coiling installation Line end is screwed together in twisted shape, and together with soldering and welding, forms a piece-root grafting line end.
Currently, raw manufacturer, which needs manually to screw stator winding, reserves copper wire, resistance when screwing for thicker copper wire Greatly, it is big, unsightly to screw rear copper wire gap, large labor intensity and formation efficiency is low.Although Twisting machine on the market can will be more Root line is screwed in a strand, and high degree of automation, but structure is complicated, purchase cost is higher and poor universality, is not particularly suited for Stator reserves screwing for copper wire end.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, it is simple, at low cost that the utility model provides a kind of structure Twisting machine, suitability is strong, is particularly suitable for stator and reserves screwing for copper wire end.
A kind of Twisting machine that in order to solve the above technical problems, the technical scheme adopted by the utility model is:, the Twisting machine Include:
Workbench;
Workpiece clamping device, the Workpiece clamping device are slidably mounted on the workbench;
Rotary motive power device and stubborn line apparatus, the rotary motive power device are installed on the workbench, the back rotation For driving the stubborn line apparatus rotation, the stubborn line apparatus of rotation is used to more copper wire on workpiece twisting into one power device Stock;
Linear advancement device, the linear advancement device are installed on the workbench, and the linear advancement device and Synchronizing linkage is provided between the rotary motive power device, the linear advancement device is used to rotate in the stubborn line apparatus When drive the Workpiece clamping device to move in a straight line.
Preferably, the rotary motive power device includes motor mount and the motor that is installed on the motor mount, The motor mount is installed on the workbench.
Preferably, the stubborn line apparatus includes U-shaped mounting base and stubborn line tooling, and the U-shaped mounting base includes bottom plate and institute Two side plates of bottom plate connection are stated, the horizontal output shaft of the bottom plate and the motor is fixed, two institutes of the U-shaped mounting base It states the one end of side plate with the stubborn line tooling to fix, the other end of the stubborn line tooling is equipped with multiple to be passed through for the copper wire Threading hole.
Preferably, the stubborn line apparatus further includes clamp manipulator and mechanical arm drive mechanism, the robot drives machine Structure is for driving the clamp manipulator to clamp the copper wire.
Preferably, the clamp machinery hand includes two hinged seats and two clamp fingers being oppositely arranged, described in two Hinged seat is separately fixed at the top and bottom of the stubborn line tooling, and the finger root of the clamp finger passes through pivot and corresponding institute State that hinged seat is hinged, the inside of the clamp finger is equipped with the holding tank for accommodating torsional spring, and the torsional spring is set on the pivot, One end of the torsional spring and the trench bottom of the holding tank lean, the top of the other end of the torsional spring and the stubborn line tooling Or bottom leans.
Preferably, the mechanical arm drive mechanism includes two pressing plates for being arranged above and below and being parallel to each other, two pressures Fixed there are two the first sliding block being parallel to each other between plate, two first sliding blocks connect with the corresponding side plate sliding respectively It connects, and is provided with knob bolt on two first sliding blocks, the shank of bolt of the knob bolt screws in first sliding block With the corresponding side plate against;
When first sliding block is slided towards the clamp finger, two pressing plates are for driving two clamp hands Finger moves toward one another;
When first sliding block is slided away from the clamp finger, two torsional springs are for driving two clamp hands Refer to back movement.
Preferably, the Workpiece clamping device includes pedestal and upper press cover, and the first clamping is provided at the top of the pedestal , column is provided on the pedestal of first clamping seats two sides;The bottom of the upper press cover is provided with and described The second opposite clamping seats of one clamping seats, one end of the upper press cover are hinged on the top of a column, another column Top be provided with active grab, the active grab is used to compress the upper press cover on the workpiece.
Preferably, the linear advancement device includes screw rod and two screw rodb bases, and the screw rod is set to two silks Be rotatablely connected between pole socket and with two screw rodb bases, be arranged with feed screw nut on the screw rod, the feed screw nut with The bottom of the Workpiece clamping device is fixedly connected.
Preferably, the synchronizing linkage include driving pulley, driven pulley and be wound around the driving pulley and Belt on the driven pulley;The driving pulley is fixedly connected with the horizontal output shaft of the motor, the driven pulley The one end for stretching out the screw rodb base with the screw rod is fixedly connected.
Preferably, sliding-rail sliding component, the sliding-rail sliding are set between the Workpiece clamping device and the workbench Component includes two sliding rails disposed in parallel and the second sliding block for being slidably connected with the corresponding sliding rail, and the sliding rail is mounted on On the workbench, second sliding block is mounted on the bottom of the Workpiece clamping device.
By using above-mentioned technical proposal, the beneficial effect that the utility model obtains is:
Workpiece clamping device in the utility model Twisting machine is used to clamp workpiece (stator), and rotary motive power device is used for It drives and twists line apparatus rotation, the stubborn line apparatus of rotation is used to more copper wire on workpiece twisting into one;Linear advancement device is used It moves along a straight line in driving Workpiece clamping device that workpiece is driven to do retrogressing in the rotation of stubborn line apparatus.That is, rotary motive power device drives It twists line apparatus and copper wire is screwed into a circle, under the synchronous driving of synchronizing linkage, linear advancement device drives Workpiece clamping dress It sets and carries workpiece and draw back a lead.
To sum up, the utility model Twisting machine structure is simple, at low cost;Manpower is replaced using stubborn line apparatus, even if compared with blister copper Line can also screw out one beautiful twisted shape copper wire;Working efficiency can be improved simultaneously, reduce the labor intensity of personnel;And it is adapted to Property it is strong, be particularly suitable for stator and reserve copper wire end screwing.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model Twisting machine;
Fig. 2 is the structural schematic diagram that line apparatus is twisted in Fig. 1;
Fig. 3 is U-shaped mounting base in Fig. 2, the installation diagram for twisting line tooling and clamp manipulator;
Fig. 4 is the structural schematic diagram of mechanical arm drive mechanism in Fig. 2;
Fig. 5 is the top view of the utility model Twisting machine;
Fig. 6 is the front view of the utility model Twisting machine;
In figure: 1- workbench, 2- Workpiece clamping device, 21- pedestal, the first clamping seats of 211-, 22- upper press cover, 221- Two clamping seats, 23- column, 24- active grab, 3- rotary motive power device, 31- motor mount, 32- motor, 4- twist line apparatus, 41-U type mounting base, 411- bottom plate, 412- side plate, 42- twist line tooling, 421- threading hole, 43- clamp manipulator, 431- clamp Finger, 432- hinged seat, 433- torsional spring, 434- holding tank, 44- mechanical arm drive mechanism, 441- pressing plate, the first sliding block of 442-, 4421- groove, 443- knob bolt, 5- linear advancement device, 51- screw rod, 52- screw rodb base, 6- synchronizing linkage, 61- master Movable belt pulley, 62- driven pulley, 63- belt, 7- sliding-rail sliding component, 71- sliding rail, the second sliding block of 72-, 8- stator, 81- copper wire.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this The embodiment of utility model is described in detail.
As shown in Figure 1, a kind of Twisting machine mainly by workbench 1, Workpiece clamping device 2, rotary motive power device 3, twist it is traditional thread binding This six most of composition of 4, linear advancement device 5 and synchronizing linkage 6 is set, is revolved for reserving copper wire end to stator It twists.
Workpiece clamping device 2 is slidably mounted on workbench 1;Rotary motive power device 3 is fixedly installed on workbench 1, is twisted Line apparatus 4 is located at turn around between power device 3 and Workpiece clamping device 2;Rotary motive power device 3 is for driving stubborn line apparatus 4 to revolve Turn;The stubborn line apparatus 4 of rotation is used to more copper wire 81 on Workpiece clamping device 2 on stator 8 twisting into one;Linear advancement dress It sets 5 to be also installed on workbench 1, and is provided with synchronizing linkage 6 between linear advancement device 5 and rotary motive power device 3, directly Line propulsion device 5 is used for the driving Workpiece clamping device 2 in the rotation of stubborn line apparatus 4 and moves in a straight line.That is, rotary motive power device 3 When driving stubborn line apparatus 4 that copper wire 81 is screwed a circle, under the synchronous driving of synchronizing linkage 6, linear advancement device 5 is driven Workpiece clamping device 2 carries stator 8 and draws back a lead.
Wherein: rotary motive power device 3 includes motor mount 31 and the motor 32 being horizontally installed on motor mount 31, Motor mount 31 is installed on workbench 1, which is decelerating motor.
In the present embodiment, as Fig. 2 to Fig. 4 jointly shown in, twist line apparatus 4 include U-shaped mounting base 41 and stubborn line tooling 42, U The bottom plate 411 and the horizontal output shaft of motor 32 of type mounting base 41 are fixed, two side plates 412 of U-shaped mounting base 41 with stubborn line One end of tooling 42 is fixed, and the other end for twisting line tooling 42 is equipped with multiple threading holes 421 passed through for copper wire 81, threading hole 421 For bellmouth.Wherein, twisting line tooling 42 includes ontology, and one end of ontology is equipped with trapezoid-shaped openings slot, the side slots of trapezoid-shaped openings slot It is respectively equipped with the threading hole 421 for running through ontology on wall and bottom cell wall, two of the other end of ontology and U-shaped mounting base 41 Side plate 412 is fixed.
Twisting line apparatus 4 further includes clamp manipulator 43 and mechanical arm drive mechanism 44, and mechanical arm drive mechanism 44 is for driving Clamp manipulator 43 is set to clamp three copper wire 81.Wherein, clamp manipulator 43 includes that two hinged seats 432 and two are arranged above and below And the clamp finger 431 being oppositely arranged, two hinged seats 432 are separately fixed at the top and bottom of stubborn line tooling 42, clamp hand Refer to that 431 finger root is hinged by pivot (not shown) and respective hinge seat 432, the inside of clamp finger 431, which is equipped with, to hold Receive the holding tank 434 of torsional spring 433, torsional spring 433 is set on pivot, and one end of torsional spring 433 and the trench bottom of holding tank 434 offset By (can be directly fixed), the top or bottom of the other end of torsional spring 433 and stubborn line tooling 42 lean (can be directly fixed), clamp The finger tip portion of finger 431 is for being clamped copper wire 81.
Mechanical arm drive mechanism 44 includes two pressing plates 441 for being arranged above and below and being parallel to each other, and is consolidated between two pressing plates 441 If two the first sliding blocks 442 are sliding with respective side panels 412 in U-shaped mounting base 41 respectively there are two the first sliding block 442 being parallel to each other Dynamic connection, the inside setting fluted 4421 of the first sliding block 442, groove 4421 is adapted with the side plate 412 of U-shaped mounting base 41; In short, the side plate 412 of U-shaped mounting base 41 is also used to serve as slideway other than for fixing with pressing plate 441.And two first Be provided with knob bolt 443 on sliding block 442, the shank of bolt of knob bolt 443 screw in the groove 4421 of the first sliding block 442 with Respective side panels 412 slide into position along side plate 412 against, the first sliding block 442 after, utilize knob bolt 443 to lock the first sliding block 442, it prevents from sliding again.
When the first sliding block 442 is slided towards clamp finger 431, two pressing plates 441 are for driving two clamp fingers 431 It moves toward one another, copper wire 81 is clamped, torsional spring 433 is in energy storage state at this time;When the first sliding block 442 deviates from clamp finger When 431 sliding, two torsional springs 433 release energy, and drive two 431 back movements of clamp finger, unclamp copper wire 81.
In order to prevent copper wire is caused to damage when clamping and when pulling, clamp finger 431 and stubborn line tooling 42 are all made of Nylon material.
In the present embodiment, as Fig. 1 and Fig. 5 jointly shown in, Workpiece clamping device 2 include pedestal 21 and upper press cover 22, pedestal 21 top is provided with the first clamping seats 211, is provided with column 23 on the pedestal 21 of 211 two sides of the first clamping seats;Upper press cover 22 bottom is provided with second clamping seats 221 opposite with the first clamping seats 211, and one end of upper press cover 22 is hinged on a column 23 Top, the top of another column 23 is provided with active grab 24 (using common structure on the market), and active grab 24 is used for Upper press cover 22 is pressed on the periphery of stator 8;Wherein the first clamping seats 211 and the second clamping seats 221 be equipped with outside stator 8 All compatible arc grooves;Stator 8 is positioned and clamped using its arc groove.
Sliding-rail sliding component 7 is set between the pedestal 21 and workbench 1 of Workpiece clamping device 2, and sliding-rail sliding component 7 includes Two sliding rails 71 disposed in parallel and the second sliding block 72 being slidably connected with corresponding sliding rail 71, sliding rail 71 are mounted on workbench 1 On, the second sliding block 72 is mounted on the bottom of pedestal 21 in Workpiece clamping device 2.
In the present embodiment, as Fig. 1 and Fig. 6 jointly shown in, linear advancement device 5 be arranged between two sliding rails 71, including Screw rod 51 and two screw rodb bases 52, screw rod 51 are set between two screw rodb bases 52 and are rotatablely connected with two screw rodb bases 52, Feed screw nut's (not shown) is arranged on screw rod 51, feed screw nut and the bottom of pedestal 21 in Workpiece clamping device 2 are fixed Connection.
Synchronizing linkage 6 is including driving pulley 61, driven pulley 62 and is wound around driving pulley 61 and driven pulley Belt 63 on 62;Driving pulley 61 is fixedly connected with the horizontal output shaft of motor 31, and driven pulley 62 and screw rod 51 stretch out silk One end of pole socket 52 is fixedly connected.
The effect that synchronizing linkage 6 is played in the present embodiment: Twisting machine is used as rotary power using motor 32, Under motor 32 drives, while the stubborn rotation of line apparatus 4 screws copper wire 81, pass through the main belt in synchronizing linkage 6 Wheel 61 and belt 63, communicate rotational motion to driven pulley 62, power is passed to screw rod 51, screw rod spiral shell by driven pulley 62 again The dynamic Workpiece clamping device 2 for being placed with stator 8 of master tape moves in a straight line on workbench 1, make stator 8 while screwing backward It moves back, i.e. the stator 8 that turns around of motor 32 moves back a lead.
The specific operation process that copper wire terminal is screwed is reserved to stator using the Twisting machine of the present embodiment are as follows:
1, manually the stator 8 for installing stator winding is placed on the first clamping seats 211 in Workpiece clamping device 2, is covered Upper press cover 22, and the periphery that active grab 24 makes the second clamping seats 221 of upper press cover 22 be pressed on stator 8 is operated, guarantee stator 8 It is clamped and fixed.
2, need to screw on stator 8 three copper wire 81 are penetrated in three threading holes 421 in stubborn line tooling 42.
3, manual operation mechanical arm drive mechanism 44 keeps the first sliding block 442 and pressing plate 441 sliding to 431 direction of clamp finger Dynamic, two pressing plates 441 drive two clamp fingers 431 to move toward one another, and the finger tip portions of two clamp fingers 431 is by be screwed three Root copper wire 81 clamps, and fixes the first sliding block 442 using the knob bolt 443 on the first sliding block 442.
4, start rotary motive power device 3 motor 32 rotate forward, motor 32 drive twist line tooling 42, clamp finger 431 and Mechanical arm drive mechanism 44 rotates together, screws to three copper wire 81.Meanwhile motor 32 drives driving pulley 61 is synchronous to turn Dynamic, driven pulley 62 also rotates synchronously under the transmission of belt, and rotary power is transmitted to screw rod 51, screw rod spiral shell by driven pulley 62 The stator 8 that master tape moves on Workpiece clamping device 2 does retrogressing linear motion (away from the direction of clamp finger 431), reaches specific bit Postpone the stopping of motor 32.
5, knob bolt 443 is unscrewed, mechanical arm drive mechanism 44 is retracted into initial position, two clamp fingers 431 are being turned round Back movement under the active force of spring 433 unclamps copper wire 81;Active grab 24 is operated at this time, opens upper press cover 22, stator 8 is taken Under.
6, the motor 32 for starting rotary motive power device 3 inverts, and motor 32 drives Workpiece clamping device 2 to return to initial position, Wait next stator.
To sum up, the utility model Twisting machine structure is simple, at low cost;Manpower is replaced using stubborn line apparatus 4, in time compared with blister copper Line can also screw out one beautiful twisted shape copper wire;Working efficiency can be improved simultaneously, reduce the labor intensity of personnel;And it is adapted to Property it is strong, be particularly suitable for stator and reserve copper wire end screwing.
The specific embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the utility model is not Be limited to above embodiment, technical field those of ordinary skill within the scope of knowledge, can also not depart from Various changes can be made under the premise of the utility model aims.

Claims (10)

1. a kind of Twisting machine, which is characterized in that the Twisting machine includes:
Workbench;
Workpiece clamping device, the Workpiece clamping device are slidably mounted on the workbench;
Rotary motive power device and stubborn line apparatus, the rotary motive power device are installed on the workbench, the rotary motive power dress It sets for driving the stubborn line apparatus rotation, the stubborn line apparatus of rotation is used to more copper wire on workpiece twisting into one;
Linear advancement device, the linear advancement device are installed on the workbench, and the linear advancement device and described Synchronizing linkage is provided between rotary motive power device, the linear advancement device is used to drive in stubborn line apparatus rotation The Workpiece clamping device is moved to move in a straight line.
2. Twisting machine according to claim 1, which is characterized in that the rotary motive power device includes motor mount and peace Loaded on the motor on the motor mount, the motor mount is installed on the workbench.
3. Twisting machine according to claim 2, which is characterized in that the stubborn line apparatus includes U-shaped mounting base and stubborn line work Dress, the U-shaped mounting base includes two side plates that bottom plate is connected with the bottom plate, the horizontal output of the bottom plate and the motor Axis is fixed, and the one end of two side plates of the U-shaped mounting base with the stubborn line tooling is fixed, the stubborn line tooling it is another One end is equipped with multiple threading holes passed through for the copper wire.
4. Twisting machine according to claim 3, which is characterized in that the stubborn line apparatus further includes clamp manipulator and machinery Hand-drive mechanism, the mechanical arm drive mechanism is for driving the clamp manipulator to clamp the copper wire.
5. Twisting machine according to claim 4, which is characterized in that the clamp machinery hand includes two hinged seats and two The clamp finger being oppositely arranged, two hinged seats are separately fixed at the top and bottom of the stubborn line tooling, the clamp The finger root of finger is hinged by pivot and the corresponding hinged seat, and the inside of the clamp finger is equipped with the receiving for accommodating torsional spring Slot, the torsional spring are set on the pivot, and one end of the torsional spring and the trench bottom of the holding tank lean, the torsional spring The other end lean with the top of the stubborn line tooling or bottom.
6. Twisting machine according to claim 5, which is characterized in that the mechanical arm drive mechanism includes two and is arranged above and below And the pressing plate being parallel to each other, fixed there are two the first sliding block being parallel to each other between two pressing plates, two are described first sliding Block is slidably connected with the corresponding side plate respectively, and knob bolt, the knob spiral shell are provided on two first sliding blocks The shank of bolt of bolt screw in first sliding block and the corresponding side plate against;
When first sliding block is slided towards the clamp finger, two pressing plates are for driving two clamp finger phases To movement;
When first sliding block is slided away from the clamp finger, two torsional springs are for driving two clamp finger phases It is unlucky dynamic.
7. Twisting machine according to claim 1, which is characterized in that the Workpiece clamping device includes pedestal and upper press cover, It is provided with the first clamping seats at the top of the pedestal, is provided with column on the pedestal of first clamping seats two sides;Institute The bottom for stating upper press cover is provided with second clamping seats opposite with first clamping seats, and one end of the upper press cover is hinged on one The top of the column, active grab is provided at the top of another column, and the active grab is used for the upper press cover It compresses on the workpiece.
8. Twisting machine according to claim 2, which is characterized in that the linear advancement device includes screw rod and two screw rods Seat, the screw rod are set between two screw rodb bases and are rotatablely connected with two screw rodb bases, cover on the screw rod Equipped with feed screw nut, the feed screw nut is fixedly connected with the bottom of the Workpiece clamping device.
9. Twisting machine according to claim 8, which is characterized in that the synchronizing linkage includes driving pulley, driven Belt wheel and the belt being wound around on the driving pulley and the driven pulley;
The driving pulley is fixedly connected with the horizontal output shaft of the motor, described in the driven pulley and screw rod stretching One end of screw rodb base is fixedly connected.
10. Twisting machine according to claim 1, which is characterized in that between the Workpiece clamping device and the workbench Sliding-rail sliding component is set, and the sliding-rail sliding component includes two sliding rails disposed in parallel and slides with the corresponding sliding rail Second sliding block of connection, the sliding rail are installed on the workbench, and second sliding block is mounted on the Workpiece clamping device Bottom.
CN201920367095.9U 2019-03-21 2019-03-21 A kind of Twisting machine Active CN209516857U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920367095.9U CN209516857U (en) 2019-03-21 2019-03-21 A kind of Twisting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920367095.9U CN209516857U (en) 2019-03-21 2019-03-21 A kind of Twisting machine

Publications (1)

Publication Number Publication Date
CN209516857U true CN209516857U (en) 2019-10-18

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CN201920367095.9U Active CN209516857U (en) 2019-03-21 2019-03-21 A kind of Twisting machine

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109831074A (en) * 2019-03-21 2019-05-31 潍坊万隆电气股份有限公司 A kind of Twisting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109831074A (en) * 2019-03-21 2019-05-31 潍坊万隆电气股份有限公司 A kind of Twisting machine
CN109831074B (en) * 2019-03-21 2023-09-15 潍坊万隆电气股份有限公司 Twisting machine

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Wire twisting machine

Effective date of registration: 20200427

Granted publication date: 20191018

Pledgee: Weifang Bank Co.,Ltd. Xincheng sub branch

Pledgor: WEIFANG WANLONG ELECTRIC LLC

Registration number: Y2020980001853

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Date of cancellation: 20230423

Granted publication date: 20191018

Pledgee: Weifang Bank Co.,Ltd. Xincheng sub branch

Pledgor: WEIFANG WANLONG ELECTRIC LLC

Registration number: Y2020980001853

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A type of twisting machine

Granted publication date: 20191018

Pledgee: Weifang Bank Co.,Ltd. Weifang High Tech sub branch

Pledgor: WEIFANG WANLONG ELECTRIC LLC

Registration number: Y2024980014096

PE01 Entry into force of the registration of the contract for pledge of patent right