CN105598523A - Metal plate shearing system for electric retractable door production - Google Patents
Metal plate shearing system for electric retractable door production Download PDFInfo
- Publication number
- CN105598523A CN105598523A CN201610066220.3A CN201610066220A CN105598523A CN 105598523 A CN105598523 A CN 105598523A CN 201610066220 A CN201610066220 A CN 201610066220A CN 105598523 A CN105598523 A CN 105598523A
- Authority
- CN
- China
- Prior art keywords
- metallic plate
- cutter
- unit
- rotating shaft
- emery wheel
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D17/00—Shearing machines or shearing devices cutting by blades pivoted on a single axis
- B23D17/02—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
Abstract
The invention discloses a metal plate shearing system for electric retractable door production. The metal plate shearing system comprises a transporting part, a driving mechanism, a first position sensor, a second position sensor and a controller, wherein the transporting part comprises a supporting table, a cutting knife and a transporting mechanism, an accommodating groove for accommodating the cutting knife is formed in the supporting table, the first end of the cutting knife is hinged with the accommodating groove, the projection of the cutting knife on the supporting table is positioned in the accommodating groove, and the driving mechanism is used for driving the cutting knife to get into or break away from the accommodating groove; the transporting mechanism is used for transporting metal plates, the transporting mechanism comprises two transporting units, the two transporting units are respectively arranged at two sides of the supporting table, and the transporting directions of the two transporting units are parallel to the length direction of the accommodating groove; along the transporting directions of the transporting units, a first detection station and a second detection station are arranged on the transporting units in sequence, and the first detection station and the second detection station are positioned at the upstream side of the cutting knife. The metal plate shearing system is simple in structure and good in effect.
Description
Technical field
The present invention relates to electric extendable door production technical field, relate in particular to a kind of electric extendable door production useMetallic plate cutting system.
Background technology
Electric extendable door is exactly that a door body can stretch and moves freely, and controls door opening size and controls pedestrian or carInterception and a kind of door of clearance. Retractable door is mainly by door body, drive motors, slideway, control system structureBecome. Door body adopts high-quality stainless steel and aluminium alloy special-purpose section to make, and adopts parallelogram principle hinged,Flexible flexible stroke is large. Driver adopts specific type of electric machine to drive, and worm and wormwheel slows down, and is provided with automatic clutchOr manual clutch, can automatic open close when automatic clutch has a power failure, can manual opening-closing when manual clutch has a power failure, controlSystem processed has control panel, press button. In existing electric extendable door, many is overlength door row formula structure,And traditional retractable door is all to be moved through cross link traction door body by head, realizes contraction or the expansion of retractable door.
Production retractable door needs a large amount of metallic plates, need to cut the metallic plate of large-size, existingCutting equipment result of use desirable not enough, need further to be improved.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of electric extendable door and produceWith metallic plate cutting system, effective.
A metallic plate cutting system for electric extendable door production use, comprising: transport unit, driving mechanism,One position sensor, second place sensor, controller;
Transport unit comprises brace table, cutter, connecting gear, and brace table is provided with for accommodating cutterHolding tank, first end and the holding tank of cutter are hinged, and the projection of cutter on brace table is positioned at holding tankIn, driving mechanism drives cutter to enter or departs from holding tank;
Connecting gear is used for transmitting metallic plate, and connecting gear comprises two delivery units, and two delivery units divideBe not placed in the both sides of brace table, the direction of transfer of two delivery units is parallel with the length direction of holding tank;
Along the direction of transfer of delivery unit, on delivery unit, be provided with successively the first detection station, second and detect workPosition, the first detection station, the second detection station are positioned at the upstream side of cutter;
Primary importance sensor, second place sensor are connected with controller signals;
Whether primary importance sensor moves to the first detection station for detection of metallic plate, when metallic plate motionDuring to the first detection station, primary importance sensor sends primary importance information;
Whether second place sensor moves to the second detection station for detection of metallic plate, when metallic plate motionDuring to the second detection station, second place sensor sends second place information;
Controller sends the first control signal according to primary importance information to driving mechanism; Driving mechanism is according toOne control signal drives cutter to enter SBR;
Controller sends the second control signal according to second place information to driving mechanism; Driving mechanism is according toTwo control signals drive cutter to carry out cutting action.
Preferably, driving mechanism comprises support, rotating shaft, driver element, linkage unit; Rotating shaft is rotated and is installedOn support, rotating shaft is placed in the top of transport unit, and the axis of rotating shaft is vertical with the direction of transfer of connecting gear;Drive unit drives rotating shaft is rotated; Linkage unit comprises runner, connector, and runner is arranged on one end of rotating shaft,The axis of runner and the dead in line of rotating shaft; One end of connector and the edge of runner are hinged, connector anotherThe second end of one end and cutter is hinged.
Preferably, the quantity of transport unit is two, and two transport units are arranged side by side; The quantity of linkage unit isTwo, two linkage units respectively with two corresponding settings of transport unit, the runner in two linkage units is respectivelyBe arranged on the two ends of rotating shaft.
Preferably, the connector in two linkage units and the junction of runner and the spacing of shaft axis equate,The line of the connector in two linkage units and the junction of runner and shaft axis oblique.
Preferably, the line of the junction of the connector in two linkage units and runner is crossing with shaft axis.
Preferably, transport unit also comprises workpiece polishing mechanism, and along the direction of transfer of delivery unit, workpiece polishing mechanism is positioned atThe downstream of cutter;
Workpiece polishing mechanism comprises support bar, emery wheel, power unit, and support bar is placed between two delivery units,Support bar vertically arranges, and emery wheel is placed in the top of delivery unit, and emery wheel is rotatably installed on support bar,Power unit drives emery wheel to rotate.
Preferably, the axis of emery wheel and the axis of support bar are parallel.
Preferably, the lower surface of emery wheel from the edge of emery wheel to the middle part of emery wheel gradually to lower process.
Preferably, support bar is provided with chute, and chute vertically arranges; Workpiece polishing mechanism also comprises installationPart, emery wheel is rotationally connected by installed part and support bar, and installed part is connected with chute is removable.
Preferably, in the time that the second end of cutter moves to lowest part from highest point, along the length side of holding tankTo, the length that cutter enter in holding tank is L;
The transfer rate of delivery unit is: 2L/T, wherein, the rotation period that T is rotating shaft.
Preferably, along the direction of transfer of delivery unit, first detect station with the second detection between station betweenApart from being greater than L.
In the present invention, metallic plate is positioned on delivery unit, utilizes delivery unit to drive metallic plate to cuttingCutter direction moves; Utilize driver element to drive rotating shaft to rotate, drive cutting by rotating shaft, runner, connectorCutter enters or departs from holding tank, and metallic plate through out-of-date, utilizes cutter to enter metallic plate from the top of holding tankRow is sheared, and cutting accuracy is high, effective; By two transport units, two linkage units, Neng Goutong are setIn time, shears multiple metallic plates, and efficiency is high; Because two cutter are to shift to install, i.e. a cuttingWhen cutter is prepared to shear metallic plate, another cutter just in time complete metallic plate cutting, by such design,When multiple metallic plates are sheared, the reaction force that whole support, rotating shaft are subject to is comparatively balanced, can not go outExisting stressed too concentrated, the operation of whole mechanism is comparatively steady, and noise is low, and the degree of wear is lower, service lifeLong; The present invention is by increasing primary importance sensor, second place sensor, controller, can be automatically,Detect in real time the position of metallic plate, controller sends instruction to driver element according to the positional information of metallic plate,Driver element drives cutter to move accordingly according to instruction, has effectively ensured machining accuracy, improvesOperating efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the applicationCombination that can be mutual; Also the present invention is elaborated below with reference to accompanying drawing in conjunction with the embodiments.
With reference to Fig. 1,2,3:
Observe not shown workpiece polishing mechanism in Fig. 1 for convenient.
The metallic plate cutting system of a kind of electric extendable door production use that the present invention proposes, comprising: two transmissionPortion, driving mechanism, primary importance sensor, second place sensor, controller.
Two transport units are arranged side by side; Transport unit comprises brace table 1, cutter 2, connecting gear, sanderStructure, brace table 1 is provided with the holding tank 3 for accommodating cutter 2, the first end of cutter 2 and holding tank3 is hinged, and the projection of cutter 2 on brace table 1 is positioned at holding tank 3, and driving mechanism drives cutter 2Enter or depart from holding tank 3.
Connecting gear is used for transmitting metallic plate, and connecting gear comprises 13, two delivery units of two delivery units13 are placed in respectively the both sides of brace table 1, the length side of the direction of transfer of two delivery units 13 and holding tank 3To parallel.
Along the direction of transfer of delivery unit 13, on delivery unit 13, be provided with successively the first detection station, secondDetect station, the first detection station, the second detection station are positioned at the upstream side of cutter 2, along delivery unit13 direction of transfer; The first detection station, second detects station and can be positioned on same delivery unit 13, alsoCan be positioned on different delivery units 13.
Primary importance sensor, second place sensor are connected with controller signals.
Whether primary importance sensor moves to the first detection station for detection of metallic plate, when metallic plate motionDuring to the first detection station, primary importance sensor sends primary importance information.
Whether second place sensor moves to the second detection station for detection of metallic plate, when metallic plate motionDuring to the second detection station, second place sensor sends second place information.
Controller sends the first control signal according to primary importance information to driving mechanism; Driving mechanism is according toOne control signal drives cutter 2 to enter SBR.
Controller sends the second control signal according to second place information to driving mechanism; Driving mechanism is according toTwo control signals drive cutter 2 to carry out cutting action.
In the present embodiment, driving mechanism comprises support 4, rotating shaft 5, driver element 6, two linkage units;Rotating shaft 5 is rotatably installed on support 4, and rotating shaft 5 is placed in the top of transport unit, the axis of rotating shaft 5 and transmissionThe direction of transfer of mechanism is vertical; Driver element 6 drive shafts 5 are rotated; Two linkage units respectively with twoTransport unit is corresponding to be arranged, and linkage unit comprises 7 points of runners in runner 7,8, two linkage units of connectorBe not arranged on the two ends of rotating shaft 5, the dead in line of the axis of runner 7 and rotating shaft 5; One end of connector 8Hinged with the edge of runner 7, the second end of the other end of connector 8 and cutter 2 is hinged.
In the present embodiment, the connector 8 in two linkage units and the junction of runner 7 and rotating shaft 5 axisSpacing equate, the line of the connector 8 in two linkage units and the junction of runner 7 and rotating shaft 5 axlesLine oblique.
Further, line and the rotating shaft 5 of the junction of the connector 8 in two linkage units and runner 7Axes intersect; The course of action of two cutter 2 is inconsistent, and two cutter 2 are to shift to install, and oneWhen individual cutter 2 are prepared to shear metallic plate, another cutter 2 just in time complete metallic plate cutting, by thisSample design, in the time that multiple metallic plates are sheared, the reaction force that whole support 4, rotating shaft 5 are subject to comparativelyEquilibrium, there will not be stressed too concentratedly, and the operation of whole mechanism is comparatively steady, and noise is low, and the degree of wearLow, long service life.
In the present embodiment, along the direction of transfer of delivery unit 13, workpiece polishing mechanism is positioned at the downstream of cutter 2.
Workpiece polishing mechanism comprises support bar 9, emery wheel 10, power unit 11, installed part 12, and support bar 9 is placed inBetween two delivery units 13, support bar 9 vertically arranges, and emery wheel 10 is placed in delivery unit 13Top, support bar 9 is provided with chute, chute vertically arranges, emery wheel 10 by installed part 12 withSupport bar 9 is rotationally connected, and installed part 12 is connected with chute is removable, and power unit 11 drives emery wheel 10 to turnMoving.
Utilize power unit 11 to drive emery wheel 10 to rotate, utilize emery wheel 10 to carry out the share zone of metallic platePolishing, ensures shear effect; Can adjust emery wheel 10 and delivery unit by the position of adjusting installed part 12Spacing between 13, can polish to the metallic plate of different size, better effects if.
Further, the axis of emery wheel 10 is parallel with the axis of support bar 9; Emery wheel 10 and support bar 9 itBetween form eccentric structure, so just can utilize the zones of different of emery wheel 10 to polish to metallic plate, ensurePolishing effect, avoids subregion excessive wear on emery wheel 10, improves service life.
Further, the lower surface of emery wheel 10 is prominent downwards gradually to the middle part of emery wheel 10 from the edge of emery wheel 10Rise; While just beginning, the burr equidimension on metallic plate is larger, and after preliminary polishing, size decreases, by upperStating design can better polish to metallic plate.
In the present embodiment, in the time that the second end of cutter 2 moves to lowest part from highest point, along holding tank 3Length direction, the length that cutter 2 enter in holding tank 3 is L.
The transfer rate of delivery unit 13 is: 2L/T, wherein, T is the rotation period of rotating shaft 5.
In Fig. 2, cutter 2 have just completed metallic plate cutting, and driver element 6, rotating shaft 5, connector 8 driveThe second end of cutter 2 rises, and meanwhile, it is mobile that delivery unit 13 drives metallic plate to continue; When cutter 2The second end in the time of highest point, the distance that metallic plate moves is L, now, cutter 2 decline, just in time rightMetallic plate cuts, and there is no idle work; If the speed of delivery unit is excessive, cutter 2 also do not haveWhile having decline, metallic plate contacts with cutter 2 once more, forms the phenomenon that metallic plate moves to cutter 2,This will cause and tear, and metallic plate can depart from the track of its motion, and cutting error is larger; If delivery unitSpeed is less, when cutter 2 cut, has part idle work, causes waste.
Metallic plate is positioned on delivery unit 13, utilizes delivery unit 13 to drive metallic plate to cutter 2Direction moves;
In the present embodiment, the second detection station can be arranged between P1 and P2, when metallic plate is placed inWhen one detection station, primary importance sensor sends primary importance information, and controller obtains primary importance informationAfter, controller sends instruction to driving mechanism, and driving mechanism can drive cutter 2 to open, and prepares to carry outCutting; In the time that metallic plate moves to the second detection station, second place sensor sends second place information,Controller obtains after second place information, and controller sends instruction to driving mechanism, and driving mechanism can driveCutter 2 cut, and therefore, the first spacing detecting between station and the second detection station is greater than L,So just avoid cutter 2 also not open completely, avoid metallic plate also not move between P1 to P2,Avoid the generation of idle work.
Utilize driver element 6 drive cutter 2 to enter or depart from holding tank 3, utilize cutter 2 to metallic plateShear, cutting accuracy is high, effective; By two transport units, two linkage units are set, canMultiple metallic plates are sheared, efficiency is high simultaneously.
By increasing primary importance sensor, second place sensor, controller, can be automatically, examine in real timeSurvey the position of metallic plate, controller sends instruction to driver element 6 according to the positional information of metallic plate, drives singleUnit 6 drives cutter 2 to move accordingly according to instruction, has effectively ensured to have improved machining accuracyOperating efficiency.
The above, be only preferably detailed description of the invention of the present invention, but not office of protection scope of the present inventionBe limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in, according to thisThe technical scheme of invention and inventive concept thereof are equal to replaces or changes, and all should be encompassed in protection of the present inventionWithin scope.
Claims (10)
1. a metallic plate cutting system for electric extendable door production use, is characterized in that, comprising: transport unit,Driving mechanism, primary importance sensor, second place sensor, controller;
Transport unit comprises brace table, cutter, connecting gear, and brace table is provided with for accommodating cutterHolding tank, first end and the holding tank of cutter are hinged, and the projection of cutter on brace table is positioned at holding tankIn, driving mechanism drives cutter to enter or departs from holding tank;
Connecting gear is used for transmitting metallic plate, and connecting gear comprises two delivery units, and two delivery units divideBe not placed in the both sides of brace table, the direction of transfer of two delivery units is parallel with the length direction of holding tank;
Along the direction of transfer of delivery unit, on delivery unit, be provided with successively the first detection station, second and detect workPosition, the first detection station, the second detection station are positioned at the upstream side of cutter;
Primary importance sensor, second place sensor are connected with controller signals;
Whether primary importance sensor moves to the first detection station for detection of metallic plate, when metallic plate motionDuring to the first detection station, primary importance sensor sends primary importance information;
Whether second place sensor moves to the second detection station for detection of metallic plate, when metallic plate motionDuring to the second detection station, second place sensor sends second place information;
Controller sends the first control signal according to primary importance information to driving mechanism; Driving mechanism is according toOne control signal drives cutter to enter SBR;
Controller sends the second control signal according to second place information to driving mechanism; Driving mechanism is according toTwo control signals drive cutter to carry out cutting action.
2. the metallic plate cutting system of electric extendable door production use according to claim 1, its feature existsIn, driving mechanism comprises support, rotating shaft, driver element, linkage unit; Rotating shaft is rotatably installed on support,Rotating shaft is placed in the top of transport unit, and the axis of rotating shaft is vertical with the direction of transfer of connecting gear; Driver element drivesMoving rotating shaft is rotated; Linkage unit comprises runner, connector, and runner is arranged on one end of rotating shaft, the axle of runnerThe dead in line of line and rotating shaft; One end of connector and the edge of runner are hinged, the other end of connector with cutThe second end of cutter is hinged.
3. the metallic plate cutting system of electric extendable door production use according to claim 2, its feature existsIn, the quantity of transport unit is two, two transport units are arranged side by side; The quantity of linkage unit is two, twoIndividual linkage unit respectively with two corresponding settings of transport unit, the runner in two linkage units is arranged on and turns respectivelyThe two ends of axle.
4. the metallic plate cutting system of electric extendable door production use according to claim 3, its feature existsIn, the connector in two linkage units and the junction of runner and the spacing of shaft axis equate, two companiesThe line of the connector in order unit and the junction of runner and shaft axis oblique.
5. the metallic plate cutting system of electric extendable door production use according to claim 4, its feature existsIn, the line of the connector in two linkage units and the junction of runner is crossing with shaft axis.
6. the metallic plate cutting system of electric extendable door production use according to claim 1, its feature existsIn, transport unit also comprises workpiece polishing mechanism, along the direction of transfer of delivery unit, workpiece polishing mechanism is positioned at cutterDownstream;
Workpiece polishing mechanism comprises support bar, emery wheel, power unit, and support bar is placed between two delivery units,Support bar vertically arranges, and emery wheel is placed in the top of delivery unit, and emery wheel is rotatably installed on support bar,Power unit drives emery wheel to rotate.
7. the metallic plate cutting system of electric extendable door production use according to claim 6, its feature existsIn, the axis of emery wheel is parallel with the axis of support bar.
8. the metallic plate cutting system of electric extendable door production use according to claim 6, its feature existsIn, the lower surface of emery wheel from the edge of emery wheel to the middle part of emery wheel gradually to lower process.
9. the metallic plate cutting system of electric extendable door production use according to claim 6, its feature existsIn, support bar is provided with chute, and chute vertically arranges; Workpiece polishing mechanism also comprises installed part, emery wheelBe rotationally connected by installed part and support bar, installed part is connected with chute is removable.
10. the metallic plate cutting system of electric extendable door production use according to claim 1, its featureBe, in the time that the second end of cutter moves to lowest part from highest point, along the length direction of holding tank, cutThe length that cutter enters in holding tank is L;
The transfer rate of delivery unit is: 2L/T, wherein, the rotation period that T is rotating shaft;
Preferably, along the direction of transfer of delivery unit, first detect station with the second detection between station betweenApart from being greater than L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066220.3A CN105598523B (en) | 2016-01-28 | 2016-01-28 | A kind of metallic plate cutting system of electric extendable door production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066220.3A CN105598523B (en) | 2016-01-28 | 2016-01-28 | A kind of metallic plate cutting system of electric extendable door production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105598523A true CN105598523A (en) | 2016-05-25 |
| CN105598523B CN105598523B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610066220.3A Active CN105598523B (en) | 2016-01-28 | 2016-01-28 | A kind of metallic plate cutting system of electric extendable door production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338638A (en) * | 2017-08-24 | 2017-11-10 | 广东溢达纺织有限公司 | Automatic thread trimming device |
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| JP2013237057A (en) * | 2012-05-14 | 2013-11-28 | Tada Denki Kk | Laser beam welding device and method for cutting metal plate with the same |
| CN203854080U (en) * | 2014-06-12 | 2014-10-01 | 北方工具设备（宁波）有限公司 | Fodder chopper type wood splitting machine |
| CN104227821A (en) * | 2014-09-28 | 2014-12-24 | 浙江瑞澄木业有限公司 | Feeding mechanism of reinforced floor board hot pressing device |
| CN104550567A (en) * | 2013-10-27 | 2015-04-29 | 李怀玉 | Electric cable cutter |
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2016
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| WO2002070164A1 (en) * | 2001-01-17 | 2002-09-12 | Sundwig Gmbh | Device for cutting metal strips to length |
| CN201124490Y (en) * | 2007-11-28 | 2008-10-01 | 王珊珊 | Small electric fodder chopper |
| JP2013237057A (en) * | 2012-05-14 | 2013-11-28 | Tada Denki Kk | Laser beam welding device and method for cutting metal plate with the same |
| CN104550567A (en) * | 2013-10-27 | 2015-04-29 | 李怀玉 | Electric cable cutter |
| CN203854080U (en) * | 2014-06-12 | 2014-10-01 | 北方工具设备（宁波）有限公司 | Fodder chopper type wood splitting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107338638A (en) * | 2017-08-24 | 2017-11-10 | 广东溢达纺织有限公司 | Automatic thread trimming device |
| CN107338638B (en) * | 2017-08-24 | 2022-09-16 | 广东溢达纺织有限公司 | Automatic thread trimming device |
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| Publication number | Publication date |
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| CN105598523B (en) | 2018-02-16 |
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