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31 results about "Work force" patented technology
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Method, apparatus, storage medium, and electronic device for monitoring labor force
The application discloses a method and device for monitoring labor force, a storage medium and an electronic device. The method comprises the following steps: obtaining operator signaling data corresponding to a target object, wherein the operator signaling data at least comprises a mobile position and a moving speed of the target object in a specified period; obtaining a calculation rule corresponding to each labor force flow label; analyzing the operator signaling data based on the calculation rule; determining a labor force image corresponding to the target object according to at least an analysis result; and displaying a labor force monitoring result according to the labor force image. The application solves the technical problem that it is difficult to monitor and analyze the labor force in real time due to the need of a large amount of manual cost for collecting labor force data and the characteristics of rapid flow and transfer of the labor force.
Owner:CHINA TELECOM CORP LTD
Apparatus and method for planning work personnel and program
To appropriately assign the time of out-of-line work to an out-of-line worker.SOLUTION: An apparatus for planning work personnel 1 comprises a total workload calculating section 15 that classifies out-of-line work which is work outside a production line into cyclic work having the time of work dependent on cycle time and non-cyclic work having the time of work not dependent on cycle time, calculates the time of cyclic work based on cycle time, calculates the time of non-cyclic work based on a work occurrence rate and calculates a total workload which is a sum of the time of cyclic and non-cyclic work, a number-of-input personnel determining section 16 that determines the number of input personnel to out-of-line work based on the total workload, a workload assigning section 17 that assigns the time of out-of-line work to a determined number-of-input personnel of out-of-line workers in proportion that the workload approximates equivalence the most based on skill of an out-of-line worker for out-of-line work, and an assignment-result output section 19 that outputs assignment-result information indicative of a result of assignment.SELECTED DRAWING: Figure 1
Owner:MITSUBISHI ELECTRIC CORP
Labor cost management system, labor cost management method, and labor cost management program
To provide a labor cost management system, a labor cost management method, and a labor cost management program configured to manage labor cost in detail for an employee who works multiple times at the same store or works at different stores on the same day.SOLUTION: A labor cost management system includes: time-recording means which registers an employee, workday, clock-in time and clock-out time of a store, in work result data, in accordance with time-recording operation on a terminal in the store; moving time registration means which registers, for each employee, moving time in each store in the work result data; and labor cost processing means which refers to the work result data, and calculates the total work time including the moving time for each store, for each employee, regarding a target month of a year, to calculate an allocation rate of the work time for each store.SELECTED DRAWING: Figure 1
Owner:OBIC CO LTD
Hardware punching machine capable of preventing workpiece from deviating
The utility model discloses a hardware punching machine capable of preventing the excursion of work piece relates to hardware punching machine technical field, including: punching machine main part, punching seat, controller, hydraulic push rod and punching head, the surface of punching machine main part is equipped with punching seat, the front part of punching machine main part is equipped with the controller. According to the hardware punching machine capable of preventing the workpiece from deviating, when a two-way lead screw rotates, two sets of moving plates can be driven to conduct thread sliding close to each other, when the two sets of moving plates move oppositely, the two sets of moving plates can slide through guide rods, when the moving plates move, a U-shaped base can be driven to move, and the end of a plug pin can penetrate through a fixing block and an L-shaped connecting block; at the moment, the plug pin can limit the L-shaped connecting block, so that the supporting plate and the supporting frame are fixed, the supporting frame can assist in supporting the tail end of the metal plate workpiece, workers do not need to lift up the tail end of the metal plate workpiece for a long time, and therefore the labor force of the workers is relieved.
Owner:ZHONGSHAN HENGYIDA METAL MATERIALS CO LTD
Systems and Methods for Unified Orchestration of Robotic, Digital, and Human Resources
The various implementations described herein include systems and methods for workflow management. In one aspect, a method includes identifying labor resources. Each labor resource has a respective profile that specifies capabilities of the respective labor resource. The method further includes receiving a request for a workflow and in response to receiving the request: (i) generating tasks to be performed for the workflow and (ii) assigning one or more of the labor resources to each generated task. The method also includes, at a first time, executing the workflow corresponding to the request, including transmitting a command to a labor resource that is assigned to a task.
Owner:ZENYX PTY LTD
Remote workforce monitoring based on geofencing, location tracking, and machine learning
The present invention relates to a method 700 for remote workforce monitoring is disclosed The method 700 includes receiving workforce data 118 associated with at least one worker of a plurality of workers 114 at a work site 116. The workforce data 118 associated with the at least one worker may be transmitted to a client device 102. Location data 120 associated with the at least one worker may be identified based on the workforce data 118. An activity to be assigned to the at least one worker at the work site 116 during a particular time instance may be automatically determined based on the workforce data 118 and the location data 120. The activity may be indicative of an industrial activity to be carried out by the at least one worker at the work site 116.
Owner:KUMAR RAMESH +2
Wire bunching device for information engineering line layout
ActiveCN223552982UPackage recyclingElectrical apparatusInformatics engineeringStructural engineering
The utility model provides a bunching device for information engineering line layout, which relates to the technical field of line layout and comprises a mounting block, a through groove is arranged on one side surface of the mounting block, a mounting cavity is arranged inside the mounting block, and limiting rods which are symmetrically distributed are fixedly connected to the inner bottom wall of the mounting cavity. One ends of the two limiting rods are fixedly connected with the inner top wall of the mounting cavity, the outer surfaces of the two limiting rods are movably sleeved with movable plates, through arrangement of the limiting rods, the movable plates, connecting rods, driving blocks, supporting springs, guide rods, lifting plates and inclined plane positioning blocks, automatic limiting and fixing of the cable tie are achieved, the line laying efficiency is improved, and the labor intensity of workers is reduced. And in addition, the cable tie can be disassembled and recycled conveniently, the labor force of workers is reduced, and the effect of repeated use is achieved.
Owner:陈旭楠
Substrate conveying device and substrate conveying method
The present disclosure provides a substrate conveyance device and a substrate conveyance method that can perform accurate motion control even when a conveyance object other than a substrate is conveyed using a substrate conveyance module. A control section of the substrate conveyance device adjusts a magnetic force of a first magnet provided at a bottom surface section of a substrate conveyance chamber, a substrate is conveyed by a substrate conveyance module provided with a second magnet, a parameter storage section stores model parameters for expressing a relationship between a work force applied to a control model and a motion, the control model is a model that expresses a conveyance object and the substrate conveyance module as a whole, a control time table creation section outputs a control time table that specifies a work force for causing the substrate conveyance module to act, using model parameters corresponding to the conveyance object and an action time table that specifies a motion of the substrate conveyance module. A magnetic force adjustment section performs feedforward control in which the magnetic force of the first magnet is adjusted to apply the work force based on the control time table.
Owner:TOKYO ELECTRON LTD
force feedback controller
1. The name of the design product: force feedback controller. 2. The use of the design product: for controlling the motion of remote terminal robot, and can feel the working force of remote terminal robot and environment interaction. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view 1.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY
Gear tooth profile feeding and carving device
The utility model discloses a gear tooth profile feeding and carving device, and belongs to the technical field of gear tooth profile machining equipment. The structure comprises a discharging fixing table, an operation rack and a feeding fixing table, the discharging fixing table and the feeding fixing table are arranged on the two sides of the operation rack correspondingly, moving pulleys are arranged at the bottom of the discharging fixing table and the bottom of the feeding fixing table correspondingly, a feeding workbench is arranged above the feeding fixing table, and the feeding workbench is arranged on the operation rack. A controllable lifting table is arranged above the feeding workbench, and a feeding conveying belt is arranged above the controllable lifting table. According to the device, the gear feeding, carving and discharging procedures are integrated, the working efficiency of gear carving is improved to a great extent, the loss of labor force in the gear carving process is further reduced, and the production cost is reduced.
Owner:JI NAN HUI YUAN CHI LUN YOU XIAN GONG SI
A conveying device of a motor suspension force testing equipment
ActiveCN224298258UApparatus for force/torque/work measurementDynamo-electric machine testingElectric machineryProcess engineering
The utility model relates to motor hangs force testing arrangement technical field, especially a kind of conveying device of motor hangs force testing equipment;The conveying device of motor hangs force testing equipment includes workbench, first belt conveyor, second belt conveyor, feeding mechanism and conveying mechanism;The top surface both ends of the workbench are respectively equipped with first belt conveyor and second belt conveyor by screwing, the top surface of the workbench and between first belt conveyor and second belt conveyor are equipped with conveying mechanism by screwing, the top of the workbench is equipped with feeding mechanism by screwing, compared with prior art, the utility model only needs worker to place motor on first belt conveyor, subsequent need not manual operation, to greatly reduce the labor expenditure of worker, effectively reduce the worker cost, and, the automation degree of the present conveying device is higher, can greatly improve production efficiency, and the practicality is stronger.
Owner:FOSHAN NANHAI MINGFENG ELECTRONICS CO LTD
System and method for industrial labor forecasting
A method and system to forecast the labor required for an industrial or construction job based on industry standard job classifications and key job impact factors that affect the labor required to do a job. A new job description is created for a job and matched to an industry standard job classification which has an identification of details pertaining to the industry standard job. A historical job database provides a baseline estimate of the labor required to complete the job based on the new job requirements and the baseline estimate is adjusted to provide a more accurate labor estimate by incorporating the job impact factors that impact the labor required for the job. A work digest for the job can be created and provided to a worker.
Owner:CREWSCOPE INC
Efficient bearing milling machine tool
The utility model relates to an efficient bearing milling machine tool, and aims to solve the problems that a bearing needs to be fixed manually by a worker during bearing feeding and can be taken down only after the bearing is disassembled manually during bearing discharging, so that the labor force of the worker is greatly increased through manual fixing and disassembling, and the working efficiency of the worker is improved. The bearing machining device comprises a base plate, a connecting shaft is rotationally connected to the middle of the surface of the base plate, a driving mechanism is arranged between the connecting shaft and the base plate, a feeding disc is installed on the top of the connecting shaft, and a plurality of discharging holes are formed in the feeding disc; v-shaped grooves are formed in the two sides of an inner cavity of the discharging hole, and rectangular grooves are formed in inner cavities of the V-shaped grooves. The bearing milling device has the advantages that during bearing milling, continuous feeding, fixing and dismounting can be automatically carried out, so that workers only need to take the milled bearings, the labor intensity of the workers is greatly reduced, the working efficiency is improved, and the working efficiency is improved. And the bearing milling efficiency can be effectively improved.
Owner:SUQIAN HANDUN PRECISION CO LTD
Method for operating a motor-actuated tool and motor-actuated tool
The described solution pertains to a motor-actuated tool and a method for operating same. A certain working process requires an increase of an applied force to a certain working force. A hydraulic medium located in a piston / cylinder of the tool applies the force and the working process no longer requires any higher force after the certain working force has been reached. The tool allows an increase of the force to a general working force that exceeds the certain working force. Reaching the certain working force results in a characteristic change of the pressure increase in the hydraulic medium. Upon reaching the characteristic change, the return valve is initially opened and a pressure drop in the hydraulic medium, which occurs as a result of opening the return valve, is used as a signal for deactivating the motor, wherein a control of the tool is designed accordingly.
Owner:GUSTAV KLAUKE GMBH
Horizontal compound machine tool with high stability and working method thereof
The application discloses a horizontal compound machine tool with high stability and a working method thereof, and relates to the technical field of horizontal compound machine tools. The existing compound machine tool is not very ideal for workpiece clamping, tool replacement and waste chip collection, and the working force on the workpiece during machining can cause the workpiece to deviate, which influences equipment stability and machining quality. Meanwhile, the space utilization of the equipment itself needs to be improved. The application comprises a base, one end of the top of the base is provided with a chuck fixing seat, further comprises a hydraulic indexing chuck, which is installed at one end of the chuck fixing seat, the rear end below the chuck fixing seat is provided with a third motor, and the third motor is connected with a hydraulic indexing chuck rotating shaft through a belt, a second sliding rail is arranged at the other end of the top of the base, a tool magazine support is installed above the second sliding rail, a first sliding rail is arranged on one side of the second sliding rail, and a moving seat is arranged above the first sliding rail.
Owner:ZHEJIANG JINTANG MACHINE TOOL
Punching equipment for metal product machining
The utility model discloses punching equipment for metal product machining, and relates to the technical field of metal machining. One side of the top end of the workbench is fixedly connected with a vertical plate, one side, close to the workbench, of the vertical plate is slidably connected with a moving plate in a clamped mode, one side, away from the vertical plate, of the moving plate is fixedly connected with a mounting plate, guide rods which are symmetrically distributed are arranged at the bottom end of the mounting plate, and a pressing plate is fixedly connected between the bottom ends of the guide rods. After the punching head drills a metal plate, due to the extrusion effect of the metal plate on the punching head, the metal plate can be arranged on the outer side of the punching head in a sleeving mode, at the moment, when the punching head moves upwards, the elastic force effect of a spring is utilized for pushing a pressing plate to move downwards, and meanwhile the metal plate arranged on the outer side of the punching head in a sleeving mode is pushed to move downwards; therefore, the metal plate is stripped from the outer surface of the punching head, the metal plate is prevented from being manually taken down from the outer side of the punching head, the input of labor force is reduced, and the punching efficiency is improved.
Owner:JIANGYIN HEMEIQI PLASTIC NEW MATERIALS CO LTD
Package bearing device
The utility model relates to the technical field of express parcel counting, in particular to a parcel bearing device which comprises a support. The workbench is horizontally arranged on the support and provided with a first area, a second area and a third area, the second area is located between the first area and the third area, and the second area is a plane; the turntable is rotatably arranged in the first area; the third area is provided with a sliding groove, and the weight detection mechanism is arranged corresponding to the sliding groove. The parcel bearing device aims at solving the problem that in the prior art, time and labor force are wasted when parcels are sent at outlets.
Owner:ZHEJIANG XINHENGSHI SUPPLY CHAIN MANAGEMENT CO LTD
Fixing equipment for metal product machining
The utility model discloses fixing equipment for metal product processing, which relates to the technical field of metal processing and comprises a base, a support rod is fixedly arranged at the end of the top of the base, a fixing component for fixing a workpiece is arranged on the support rod, and the fixing component comprises a first case. Through the installation of the fixing assembly, after the machined part is fixed, the machined part can be rotated, so that an employee can polish and deburr the machined part by standing at one position, the labor force of the employee is reduced, and the polishing and deburring machining efficiency of the machined part is improved.
Owner:CHENGDU LINYI METAL PRODUCTS CO LTD
Inner support dispensing machine
The utility model relates to the technical field of sound box inner supports, in particular to an inner support dispensing machine, which comprises a conveying mechanism comprising a conveying part and a fixing part, and the conveying part moves relative to the fixing part and is used for conveying an inner support; the blocking mechanism is fixedly arranged on the fixing part and comprises an intercepting end movably arranged on the fixing part, the intercepting end moves to the top end of the conveying part to intercept the inner support, and the intercepting end moves away from the top end of the conveying part to release the inner support; the glue dispensing mechanism comprises a first driving assembly and a first glue dispensing assembly, the output end of the movable first driving assembly is fixedly connected with the first glue dispensing assembly, and the output end of the first glue dispensing assembly is arranged towards the inner support of the conveying part. Therefore, the overall production efficiency is greatly improved, the dependence on manual labor force is reduced, the labor cost is reduced, and meanwhile errors and waste caused by improper manual operation are avoided.
Owner:SUZHOU YUTONG PRINTING CO LTD
Maintenance auxiliary tool for explosion-proof distribution box
Owner:GUANGDONG (PANYU) PETROCHEMICAL STORAGE & TRANSPORTATION LTD
System and method for industrial labor forecasting
A method and system to forecast the labor required for an industrial or construction job based on industry standard job classifications and key job impact factors that affect the labor required to do a job. A new job description is created for a job and matched to an industry standard job classification which has an identification of details pertaining to the industry standard job. A historical job database provides a baseline estimate of the labor required to complete the job based on the new job requirements and the baseline estimate is adjusted to provide a more accurate labor estimate by incorporating the job impact factors that impact the labor required for the job. A work digest for the job can be created and provided to a worker.
Owner:CREWSCOPE INC
Clamping tool for alloy material lifting lug machining
The utility model discloses a clamping tool for machining an alloy material lifting lug, which relates to the technical field of lifting lug machining and comprises a machining table, a machining base is fixedly mounted at the top of the machining table, a working table is fixedly mounted at the top of the machining base, and a placing table is fixedly mounted in the middle of the top of the working table. An adjusting plate is fixedly mounted at the top of the placing table, and an adjusting mechanism is movably mounted in the adjusting plate. Through mutual cooperation of the limiting column, the rotating shaft, the gear shaft, the rotating gear, the driving motor, the driving sliding rail, the driving plate, the auxiliary frame and the clamping column, the problem that when a clamping tool carries out clamping machining, the position of a machined part needs to be manually replaced, and consequently manual labor force is increased is solved, the rotating adjusting function is achieved, and the working efficiency is improved. The auxiliary frame is used for moving and limiting at the top of the machined part and is matched with the driving motor to drive the gear shaft and the rotating gear for transmission, the machined part is driven to rotate and adjust, and convenient machining of the device is facilitated.
Owner:DALIAN HENGXIN MASCH CO LTD
Automatic steel seal stamping device based on pneumatic pressure cylinder
The utility model discloses an automatic steel seal printing device based on a pneumatic pressure cylinder, which relates to the technical field of pneumatic pressure cylinder printing equipment and comprises an operating platform, a clamp, a workpiece and a steel seal die, the clamp is mounted on the operating platform, the workpiece is placed on the tail cone in the middle of the clamp, and a connecting plate is clamped on the side edge of the clamp. The other end of the connecting plate is clamped with a movable plate, a fixed plate is installed on the clamp, and steel seal molds are arranged on the sides, close to the machined part, of the fixed plate and the movable plate. According to the automatic steel seal stamping device based on the pneumatic pressure cylinder, manpower can be replaced by automation, labor force is greatly saved, due to the fact that the steel seal stamping position of a product is limited, a steel seal can be accurately stamped to the correct position through the device, meanwhile, the pressure of the pressure cylinder can be adjusted, the depth of the steel seal can be better controlled, and the production efficiency is improved. And the standard specified by a customer is reached.
Owner:JIAXING HONGFENG MACHINERY
A labor organization mode optimization method and system based on an AI agent hub
This invention discloses a method and system for optimizing labor organization based on an AI intelligent agent hub, comprising: constructing a labor resource mobilization library; obtaining project business objectives, logically decomposing the project business objectives based on a semantic parsing model to obtain a set of project sub-tasks, and performing digitizable evaluation on each sub-task in the project sub-task set to obtain a digitizable score; performing scheduling and matching based on the labor resource mobilization library, the project sub-task set, and the digitizable score to obtain the optimal labor force grouping; generating hybrid virtual work teams based on the optimal labor force grouping, and issuing work instructions to execute work based on the hybrid virtual work teams. Compared with existing technologies, this invention can significantly improve the overall coordination efficiency of heterogeneous labor, the accuracy of task adaptation, and the smoothness of human-machine collaboration, overcoming the technical shortcomings of fragmented resource profiles, lack of digitizable task evaluation, and low grouping matching accuracy.
Owner:RUNJIAN COMM
A method for constructing a robot teleoperation force sense of visual information fusion
The application discloses a kind of robot teleoperation force sense construction methods of fusion visual information.Method includes through three depth cameras, based on point cloud and target recognition, the visual information acquisition method of work environment, obtains task target position and from end obstacle model;Through force sensor, task target position and from end obstacle model respectively obtain interactive work force, virtual guiding force and virtual environment force, then according to interactive work force, virtual guiding force and virtual environment force construction fusion force;Finally, fusion force is transmitted to force feedback device, forms the final teleoperation force sense.The application introduces visual information into the construction process of virtual force sense, realizes the enhancement of force sense, and through the fusion force of fusion visual information, can help operator to guide robot to avoid obstacles, approach task target, reduce the work burden of operator.
Owner:DONGHAI LAB +1
Lamination production line and lamination production line control method
PCT designated stageWO2025218342A1Laminating printed circuit boardsControl devices for conveyorsMachineMachining time
The present application discloses a lamination production line and a lamination production line control method. The lamination production line comprises a loading and unloading mechanism, a laminating machine, and a transfer device. The loading and unloading mechanism is used for loading and unloading a workpiece, the laminating machine is used for laminating the workpiece, and the transfer device is located between the loading and unloading mechanism and the laminating machine and is used for transferring the workpiece. The transfer device comprises a fixing frame and a traveling apparatus, and the traveling apparatus is located at the bottom of the fixing frame, so that the transfer device can move along a preset path, achieving transferring of the workpiece, and facilitating improvement of the overall degree of automation; moreover, automatic loading and unloading of the workpiece between the laminating machine and the transfer device is achieved by means of a temporary storage apparatus and a grabbing apparatus, improving the stability and reliability of the workpiece during the loading and unloading, and reducing the step of repeatedly calibrating the workpiece, thereby shortening the processing time for the workpiece in the lamination production line; and in addition, the requirement for labor force can also be reduced, facilitating reduction of the labor cost, and better meeting the actual usage requirement.
Owner:HANS CNC SCI & TECH +1
Ceramic insulation air-separation pup joint
ActiveCN224003396UPipe elementsPipe protection against damage/wearScrew threadElectrical and Electronics engineering
The utility model relates to the technical field of connecting devices, and discloses a ceramic insulating air short section which comprises a pipe body, an insulating layer is fixedly sleeved with an inner cavity of the pipe body, a sealing layer is fixedly sleeved with the inner wall of the insulating layer, limiting grooves are formed in the inner walls of the two ends of the pipe body, and springs are fixedly connected to the top faces of the limiting grooves. One end of the spring is fixedly connected with an elastic button, and one end of the elastic button penetrates through the limiting groove and extends to an inner cavity of the sealing layer. According to the utility model, the mode of clamping with the pipeline is adopted to replace threaded connection, the pipeline is clamped in the pipe body for connection through the interaction of the elastic button on the pipe body and the button hole in the pipeline and the clamping of the elastic button and the button hole, so that the situation that the threaded connection mode is adopted, and a large amount of labor force of workers needs to be consumed during threaded connection is avoided; and the problems of high labor intensity and poor use effect of a user caused by abrasion of threads after long-time use are solved, and the use effect of the user is improved while the labor force of workers is saved.
Owner:HEILONGJIANG GETAI TECH DEV CO LTD
Bending device for stainless steel hinge production
The utility model relates to the technical field of bending devices, and discloses a bending device for stainless steel hinge production, which comprises a working table, a bending table is fixedly arranged at the upper end of the working table close to the middle, and a crack is arranged at the upper end of the bending table close to the right side. A round corner plate is arranged at the position, corresponding to the front end of the crack, of the upper end of the bending table, a rotating disc is rotationally installed at the position, close to the right side, of the upper end of the workbench, a clamping piece is fixedly connected to the position, close to the front side, of the left end of the rotating disc, a clamping groove is formed in the middle of the rear end of the clamping piece, and the internal gap of the clamping groove is larger than that of the crack. An adjusting plate is slidably mounted at the position, corresponding to the crack, of the rear end of the bending table in a penetrating mode. Automatic feeding operation and the clamping function in the bending process are achieved, manual adjustment of workers is not needed, the machining efficiency is greatly improved, labor force is effectively released, the labor cost is reduced, and the whole production process is smoother and more efficient.
Owner:HUAQUN FURNITURE MATERIALS (SHENZHEN) CO LTD
Systems and methods for unified orchestration of robotic, digital, and human resources
The various implementations described herein include systems and methods for workflow management. In one aspect, a method includes identifying labor resources. Each labor resource has a respective profile that specifies capabilities of the respective labor resource. The method further includes receiving a request for a workflow and in response to receiving the request: (i) generating tasks to be performed for the workflow and (ii) assigning one or more of the labor resources to each generated task. The method also includes, at a first time, executing the workflow corresponding to the request, including transmitting a command to a labor resource that is assigned to a task.
Owner:ZENYX PTY LTD
A wool computerized flat knitting machine pulling device
A wool computerized flat knitting machine pulling device relates to the technical field of textile automation equipment, and is characterized in that a base sheet is arranged on a transverse movement mechanism to make the base sheet move horizontally, and there are rake A or rake B between the base sheets, wherein the rake A and the rake B are arranged on a lifting mechanism to make the rake A and the rake B move up and down respectively. The problem of traditional roller winding is completely avoided, unnecessary labor is reduced, work efficiency is increased, and the labor of workers is reduced. The problem that the traditional roller cannot be used in less than two rows of weaving intervention is solved, thereby reducing the use of a large amount of starting yarn, saving resources, and reducing processing cost. The problem that the same pulling force of the roller is completely solved, the size of the weaving piece needle width affects the pulling force output result, and the stability of the pulling force density deviation is ensured.
Owner:郭庚女