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40results about "Dobbies" patented technology

Ribbon loom driven by horizontally opposed crankshafts

ActiveCN121250621ASmallware loomsDobbiesElectric machineryCrankcase
The invention provides a ribbon loom driven by horizontally opposed crankshafts, which comprises a base rack provided with a crankcase, a crankshaft driving assembly is arranged in the crankcase and drives a heald frame opening mechanism through a connecting rod, and a cloth tape winding mechanism, a weaving mechanism and a weft yarn feeding mechanism are further arranged above the crankcase. The crankshaft driving assembly comprises a rear crankshaft set and a front crankshaft set which are horizontally and oppositely arranged, a first synchronous wheel and a second synchronous wheel in the rear crankshaft set are connected through a rear main shaft piece, and a driving belt wheel is installed on a motor piece and connected with the first synchronous wheel through a first synchronous belt. The front crankshaft set and the rear crankshaft set are driven to rotate synchronously, all heald frame openings in the heald frame opening mechanism operate synchronously according to the preset opening rhythm, openings are formed through the heald frame set, the openings reach the weaving mechanism to be woven into cloth belts, and then the cloth belts are wound into a container through the winding mechanism. The vibration and noise of the machine are reduced, and the overall processing efficiency of the ribbon loom is improved.
Owner:CKY PRECISION MASCH CO LTD

Cam opening swing arm structure of cam opening dobby loom

ActiveCN224212878Ureduce exposureAchieve dustproof effectDobbiesCam shedding mechanismClassical mechanicsCam
The utility model provides a cam opening swing arm structure of a cam opening dobby loom, which comprises a swing arm mechanism main body, a dustproof cover, a clamping piece and an adjusting bearing end, and an outer support body is arranged at the outer end of the right side of the inner composition of the swing arm mechanism main body. The swing arm mechanism has the beneficial effects that the swing arm mechanism main body, the clamping piece and the adjusting bearing end are additionally arranged, so that the adjusting bearing end is pulled to move left and right according to the position of a component connected with the adjusting bearing end in actual use; a clamping piece moves up and down to enable an upper clamping plate and a lower clamping plate to jointly clamp an adjusting bearing end and fix the adjusting bearing end through screws, so that the position of the adjusting bearing end can be adjusted, a swing arm mechanism body and a dustproof cover are additionally arranged, a connecting column is embedded into a connecting groove, a cover body is embedded into a dustproof cover groove, and therefore the adjusting bearing end can be adjusted. Contact between the bearing and the outside can be reduced through the dustproof cover, and therefore the dustproof effect is achieved.
Owner:QINGDAO DAPENG MASCH CO LTD

Shedding machine for a loom and shedding assembly for a loom comprising a group of such machines

The present invention relates to a fluidic connection device, comprising a flange, and a nozzle through which passes a distal internal channel, and which is configured so as to be fluidically coupled to a complementary connection device. The nozzle, mounted in the flange with the possibility of tilting relative to the flange, comprises a rear end, and a front end. The invention also includes a rod comprising an intermediate internal channel; a front end, mounted in sealed cooperation with the rear end of the nozzle with the possibility of tilting of the rod relative to the nozzle and relative to the flange, for fluidic communication between the distal internal channel of the nozzle and the intermediate internal channel of the rod; and a rear end for fluidic communication between a proximal internal conduit and the intermediate internal channel.
Owner:STAUBLI FAVERGES SA

Electronic multi-arm detection control method, system and equipment

The invention provides an electronic dobby detection control method, system and equipment, and relates to the technical field of intelligent control of textile machinery, and the method comprises the steps: collecting a multi-source monitoring data set in the operation process of an electronic dobby shedding device; performing on-off state detection on the electromagnetic driving unit of each electronic dobby in sequence to generate an electromagnetic abnormality diagnosis result; comparing the action time sequence data on the basis of a preset movement track, and generating an abnormal action judgment result of each electronic dobby; performing multi-dimensional abnormal correlation analysis in combination with oil level information of the hydraulic system, and constructing a multi-factor coupling state evolution chain; and carrying out abnormal hierarchical positioning, generating a self-adaptive adjustment strategy, and carrying out self-adaptive feedback control. The technical problems that in the prior art, electronic multi-arm detection mostly depends on single-type signal detection, the running state of equipment cannot be evaluated timely and comprehensively, an effective diagnosis and early warning mechanism for equipment abnormity is lacked, and then the stability and production efficiency of the equipment are difficult to guarantee are solved.
Owner:JIANGSU NIUPAI TEXTILE MACHINERY

Dobby loom with connecting rod protection structure

ActiveCN223974302UDobbiesYarnDrive shaft
The dobby loom with the connecting rod protection structure comprises a shell and a discharging port, the front side and the rear side of the right end of the shell are each provided with a side limiting rail used for being embedded with the lower end of an adjusting component in a mutual limiting mode, and the inner side of each side limiting rail is provided with an adjusting component used for adjusting the guiding tension of yarn weaving materials. A set of driven rotating heads used for being in power connection with a driving shaft are arranged at the front end of the left side of the shell, a set of transmission chains used for conducting power transmission are arranged on the outer sides of the driven rotating heads, and a set of driving teeth used for outputting motor power are arranged on the inner sides of the lower ends of the transmission chains. Compared with the prior art, the yarn guiding device has the advantages that the driving shaft is used for driving the material guiding roller to rotate, the guiding roller is used for conducting protection guiding on weaving yarn materials, the protection roller is used for conducting self-adaptive relaxation protection on the tensioning degree of the weaving yarn materials, and a plurality of sets of rotation dampers are used for providing tension supporting for the weaving yarn materials.
Owner:QINGDAO DAPENG MASCH CO LTD

STM32-based electronic dobby

InactiveCN121826958ADobbiesSTM32Parallel plate
The invention provides an STM32-based electronic dobby. The STM32-based electronic dobby structurally comprises a man-machine interaction screen, an electronic control cabinet, a damping structure, a metal loading frame and a heald lifting arm, the man-machine interaction screen is embedded into the side edge of the electronic control cabinet, and the lower end of the electronic control cabinet is embedded into the side edge of the damping structure; after a damping structure is improved, the positions of the clamping plates are determined through the parallel plates and the inserting blocks, then the clamping plates cover the edge of the metal loading frame through the damping plates in the clamping grooves, and the metal loading frame can be limited through the magnetic suction plates and the restraining blocks in the process; therefore, when multiple groups of heald lifting arms operate, kinetic energy conducted by the heald lifting arms can be absorbed through the clamping plates and the damping plates, the stability of the whole metal loading frame is improved, the original point positioning strength of the electronic control cabinet is improved by utilizing the reinforcing structure, the situation that a circuit is pulled and falls off due to instability of the electronic control cabinet is prevented, and the service life of the electronic control cabinet is prolonged. And the connection stability of the lifting heald arm, the internal component circuit of the metal loading frame and the electronic control cabinet is improved.
Owner:JIAN COLLEGE

Intelligent shed width adjusting control method suitable for wide fabric production

InactiveCN121826968ADobbiesLoomsControl engineeringSelf adaptive
The invention discloses a shed intelligent width adjusting control method suitable for wide fabric production, and relates to the technical field of textile machinery automation control. The method is used for solving the problem of weft insertion interference caused by gravity collapse of wide warp yarns, and comprises the following steps: firstly, calculating the maximum static droop amount of the warp yarns, superposing the minimum clearance height, and defining a minimum suspension height threshold value; then, the warp height is collected in real time through laser and compared with a threshold value, and the dynamic interference depth is quantified; thirdly, an optimal heald leveling phase advance angle is sought, warp yarns are straightened through the instantaneous tension hardening effect to eliminate interference, and an optimal driving time sequence is generated; finally, closed-loop compensation is carried out based on the flight time lag of the weft yarn, phase parameters are adjusted in a self-adaptive mode, safe weft insertion is achieved on the premise that the opening stroke is not increased, and the fabric quality is improved.
Owner:GUANGZHOU GUANGQIAN TEXTILE CO LTD

Common single-opening electronic multi-arm driven built-in double-opening device

PendingCN120989785ADobbiesStructural engineeringKnife blades
The invention relates to a common single-opening electronic multi-arm driven built-in double-opening device which is characterized in that the lower parts of a plurality of heald frames are respectively connected with an opening push-pull device through one or more vertical lifting rods, the upper ends of two vertical connecting rods of the opening push-pull device are respectively hinged with two ends of a flat lever, and the lower ends of the two vertical connecting rods are respectively hinged with the upper ends of two push-pull right-angle blades which are symmetrically arranged; the middle part of the push-pull right-angle blade rotatably penetrates through the bracket; the lower ends of the push-pull right-angle blades on the same side of the same opening push-pull device are hinged to the same push-pull link rod, and the two push-pull link rods of the same heald frame are adjacent, are connected through reversing swing arms and / or driving link rods respectively and are driven and controlled by the two output blades of the common single-opening electronic dobby respectively. The symmetrical push-and-pull right-angle blades are selectively driven to rotate by the electronic dobby with different selections, the vertical lifting rod is driven to lift and drive the heald frames through the lifting of the flat lever, and the upper and lower openings of the front and rear heald frames can be simultaneously realized through different selections of the electronic dobby, so that the double-layer weaving efficiency is greatly improved.
Owner:JIANGSU YOUCHENG CNC TECH CO LTD +1

Scaffolding machine

ActiveCN115404583BDobbiesLoomsMolding machineMachine
This shed forming machine includes: an output rod (14) that pivots about a common axis (22) centered on a longitudinal axis (A22); a cover; a frame; and sealing devices (40, 52, 54) comprising sealing struts (40) stacked along the common axis and at least one seal (52, 54). Each sealing strut includes a strip (402) and an inner radial edge. The seals (52, 54) extend in a principal direction parallel to the longitudinal axis (A22) of the common axis (22) and abut a fixed portion of the machine. Each sealing strut (40) is provided with at least one groove (416, 436) extending parallel to the principal axis (A40) of the sealing strut (40) and opening on one side of each sealing strut. The grooves of the sealing struts of the sealing devices (40, 52, 54) collectively define channels (G2, G4) for receiving the heel of the seal.
Owner:STAUBLI FAVERGES SA

Yarn jumping automatic stop device of dobby loom

ActiveCN223674855UDobbiesLoomsYarnTorsion spring
The utility model provides a dobby loom yarn jumping automatic stop device, which comprises a device main body, a connecting piece and a torsion spring piece, and the left upper end of the internal composition of the device main body is provided with a yarn sensing piece used for sensing yarns during yarn leading. Compared with the prior art, the device has the advantages that the device body, the connecting piece and the torsion spring piece are additionally arranged, yarn drives the yarn sensing piece to rotate around the rotating shaft through the yarn hook piece, the left end of the telescopic rod moves upwards, the automatic stop pressing column moves upwards, and the center column does not make contact with the pressure sensor; after the yarn is separated from the yarn hook piece, the yarn sensing piece automatically rotates under the action of the torsion spring piece, the automatic stop pressing column moves downwards to press the pressing spring, the center column slowly gets close to the pressure sensor, when a set of yarn does not drive the yarn sensing piece to rotate, the center column can make contact with the pressure sensor to sense the pressure sensor, and the dobby loom is controlled to be shut down through the frequency converter. Yarn jumping automatic stop can be achieved, and the torsion spring piece can be disassembled and assembled by additionally arranging the device body, the connecting piece and the torsion spring piece.
Owner:QINGDAO DAPENG MASCH CO LTD

Shedding machine for a loom and shedding assembly for a loom comprising a group of such machines

A fluidic connection device, including a flange, and a nozzle through which passes a distal internal channel, and which is configured so as to be fluidically coupled to a complementary connection device. The nozzle, mounted in the flange with the possibility of tilting relative to the flange, includes a rear end, and a front end. The invention also includes a rod including an intermediate internal channel; a front end, mounted in sealed cooperation with the rear end of the nozzle with the possibility of tilting of the rod relative to the nozzle and relative to the flange, for fluidic communication between the distal internal channel of the nozzle and the intermediate internal channel of the rod; and a rear end for fluidic communication between a proximal internal conduit and the intermediate internal channel.
Owner:STAUBLI FAVERGES SA

Shedding machine for a loom and adjustment method

ActiveEP4144903B1DobbiesHealds
A crowd-forming machine (2) comprising: an eccentric system (30) rotating about a main axis (X20); a lever (50); and a connecting rod (40) pivotally coupled to the eccentric system and the lever about eccentric (X41) and connecting rod (X42) axes separated by a connecting rod center distance (R2), the main axis (X20) and the eccentric (X41) axis being separated by an eccentric center distance (R1). To facilitate adjustment of the stroke of a frame of beams actuated by the machine, it includes an adjustment system allowing: an adjustment configuration where the eccentric (R1) or connecting rod (R2) center distance is adjustable, and a locked configuration where these distances are fixed. The machine (2) includes a locking system (80), which allows lever locking and lever release configurations.
Owner:STAUBLI FAVERGES SA

Transmission mechanism of opening device of electronic dobby

ActiveCN223255582UDobbiesBobbinDrive shaft
The utility model relates to the technical field of transmission mechanisms, and discloses a transmission mechanism of an opening device of an electronic dobby, which comprises a main body mechanism, the top of the main body mechanism is provided with a fixing mechanism, and two sides of the main body mechanism are fixedly connected with sliding mechanisms. By means of the cushion block and the connecting column arranged at the bottom of the main body mechanism, the machine body can be prevented from shaking when the device works, knitting is not affected, the stability of the device can be improved, by means of the arranged bobbin, the bobbin can be replaced, the practicability of the device can be improved, and the practicability of the device is improved. Through the arrangement of the driving shafts and the grips, the different grips can be manually operated to drive the driving shaft on one side so as to change the width of woven cloth, so that the diversity of the device is improved, through the arrangement of the sliding machine, a bobbin can be dyed while the device is used for weaving, and the weaving efficiency is improved. Therefore, the device can weave different patterns and effects, and the portability of the device is improved.
Owner:江苏苏美特机械有限公司

Opening mechanism for a weaving machine and method for adjusting the same

An opening machine for a weaving machine and a method for adjusting the same are disclosed. The opening machine (2) comprises an eccentric system (30) rotatable about a main axis (X20), a lever (50), and a transmission bar (40) coupled to the eccentric system and pivotally coupled to the lever about an eccentric axis (X41) and a connecting bar axis (X42), the eccentric axis and the connecting bar axis being spaced apart by a connecting bar center distance (R2), the main axis (X20) and the eccentric axis (X41) being spaced apart by an eccentric distance (R1). To facilitate adjustment of the stroke of a heald frame operated by the opening machine, the opening machine comprises an adjustment system allowing: an adjustment configuration in which the eccentric distance (R1) or the connecting bar distance (R2) is adjustable; and a locking configuration in which these distances are fixed. The opening machine (2) comprises a locking system (80) allowing a lever locking configuration and a lever release configuration.
Owner:STAUBLI FAVERGES SA

Technical training machine for a web machine and its regulation procedure

ActiveDE602022024304T2DobbiesHealdsSoftware engineeringTechnical training
Owner:STAUBLI FAVERGES SA

Shedding machine and shedding assembly comprising a group of such machines

The machine (9) comprises a rotary electric motor, a crank, a driving lever and a driving rod. The stator (23) of the motor comprises winding laminations (33), extending radially between a stator outer diameter (D23e) and a stator inner diameter (D23i), and electrical windings (39). The rotor (29) of the motor comprises a rotor shaft (51), centered on a main axis (A1), surrounded by a cylindrical portion (53) of the rotor and secured to the cylindrical portion and the crank, and permanent magnets (57). A ratio of the external stator diameter (D23e) to a length (L53) of the cylindrical part (53), measured parallel to the main axis without exceeding the permanent magnets, is between 2.0 and 4.0, preferably between 2.5 and 3.5, more preferably between 2.8 and 3.2.
Owner:STAUBLI FAVERGES SA

Double-opening loom

PendingCN120591940AJacquardsDobbiesControl systemGear wheel
The invention relates to the technical field of textile machinery, and discloses a double-opening loom which comprises a loom body, a double-warp-beam mechanism is installed in the bottom of the loom body, a transmission mechanism is movably connected to the outer side of the double-warp-beam mechanism, an adjusting device is installed on the outer side of the double-warp-beam mechanism, and the adjusting device is movably connected with the transmission mechanism. A control system is arranged on the outer side of the loom body. According to the double-opening loom, through the cooperative structure of upper warp beam jacquard and lower warp beam dobby, the high-complexity pattern weaving of a jacquard machine and the high-efficiency production characteristic of a dobby machine are synchronously achieved on single equipment, the limitation of single function of traditional equipment is broken through, the electric adjusting device is meshed with the gear, and real-time switching of the transmission ratio is achieved through electric control; power transmission is flexibly adjusted according to fabric pattern complexity and production efficiency requirements, the synchronous compensation device monitors and compensates position deviation of the two parts in real time, synchronous errors are controlled within an extremely small range, fabric pattern precision is effectively improved, and the defective rate is reduced.
Owner:GUANGDONG FENGKAI MASCH CO LTD

Crowd-forming machine and crowd-forming assembly comprising a group of such machines

ActiveFR3160709B1DobbiesWindingsCrankMachine
Crowd-forming machine and crowd-forming assembly comprising a group of such machines. The machine (9) includes a rotary electric motor, a crank, a drive lever, and a drive rod. The motor stator (23) includes winding laminations (33) extending radially between an external stator diameter (D23e) and an internal stator diameter (D23i), and electrical windings (39). The motor rotor (29) includes a rotor shaft (51) centered on a main axis (A1), surrounded by a cylindrical portion (53) of the rotor and integral with the cylindrical portion and the crank, and permanent magnets (57). The ratio of the stator's external diameter (D23e) to a length (L53) of the cylindrical portion (53), measured parallel to the main axis without exceeding the permanent magnets, is between 2.0 and 4.0, preferably between 2.5 and 3.5, and even more preferably between 2.8 and 3.2. (See Figure 3 for abbreviations.)
Owner:STAUBLI FAVERGES SA

Method for determining a configuration of a drive mechanism with a moving element and system

ActiveEP4151787B1DobbiesCam shedding mechanism
The invention relates to a method for determining configuration of a drive mechanism (2) having a moving element (12, 16, 17, 20, 21, 22) for driving a heald frame (1), wherein the sensor device (40) comprises a target set (41) provided on the moving element (12, 16, 17, 20, 21, 22) with an upper target (43) and a lower target (45), and the sensor device (40) comprises a sensor element (42) arranged stationary on the weaving machine, wherein the method comprises operating the drive mechanism (2) to move the moving element (12, 16, 17, 20, 21, 22) so that the target set (41) passes the sensor element (42), detecting with the sensor element (42) the presence of the upper target (43) and the lower target (45) within the sensing range, and determining an upper target detecting moment (63) and a lower target detecting moment (65) in a weaving cycle upon detecting the upper target (43) and the lower target (45), and the method comprises detecting with the sensor element (42) the presence of a middle target (44) within the sensing range, wherein the middle target (44) is provided on the moving element (12, 16, 17, 20, 21, 22) of the drive mechanism (2) and arranged between the upper target (43) and the lower target (45), determining a middle target detecting moment (64) in the weaving cycle upon detecting the middle target (44), and determining a configuration of the drive mechanism (2) based on the upper target detecting moment (63), the middle target detecting moment (64), and the lower target detecting moment (65). The invention further relates to a moving element of a drive mechanism for driving a heald frame of a weaving machine, and to a system comprising a moving element and a sensor device.
Owner:PICANOL NV

A harness frame for a loom and a loom comprising such a harness frame

A traction mechanism for controlling the heald frames of a loom equipped with a shed machine, for each heald frame, said traction mechanism comprises a set of connecting rods and a swing lever (72) coupled to said set of connecting rods for reproducing the movement of said shed machine to said heald frame. Said traction mechanism comprises at least one measuring portion (72C) equipped with a target (100) configured to interact with a sensor (110). In order to more easily install and remove said target on said measuring portion, each measuring portion is provided on a peripheral wall of one of said swing levers (72) or on a peripheral wall of a stabilizer of said traction mechanism, said target being reversibly mounted on said measuring portion (72C).
Owner:STAUBLI FAVERGES SA

Bearing for a shed forming machine or motion transmission system, heald movement lever equipped with such a bearing, and shed forming machine equipped with such a lever or bearing

ActiveJP7750649B2Roller bearingsDobbies
To provide a bearing for reducing the material fatigue of a machine.SOLUTION: A bearing (25) for a shed forming machine or a system for transmitting a motion to a frame of a loom comprises an inner ring (72), an outer ring (74) and rolling elements (76). The inner ring has two lateral surfaces vertical to a long axis and centered on a main axis line (A72), and defines a circular external peripheral ring (80) centered on the long axis line. The outer ring (74) defines the circular inner ring (72) centered on the main axis line. The inner ring (72) comprises at least one slot (90), is open onto the two lateral surfaces, extends opposite a part of the external peripheral ring (80), and forms a material bridge (94) between the slot and the external peripheral ring. The material bridge (94) extends above an angular sector (99) of the inner ring, the angular sector being centered on the main axis line (A72) of the bearing and having a vertex angle (α1) which is larger than a vertex angle (β2) of an angular sector occupied by the two rolling elements (76), or equal thereto.SELECTED DRAWING: Figure 4
Owner:STAUBLI FAVERGES SA

Dobby box electromagnet installation auxiliary device, dobby box and weaving machine

ActiveCN223433594UDobbiesMachineIndustrial engineering
The utility model relates to a dobby box electromagnet installation auxiliary device, a dobby box and a weaving machine. The auxiliary device for mounting the electromagnet of the dobby box comprises a mounting clamping seat, a first adjusting assembly and a second adjusting assembly, the mounting clamping seat comprises a first mounting part and a second mounting part connected to the first mounting part; the first mounting part is of a clamping groove structure extending in the first direction, and the second mounting part is connected to the closed end of the clamping groove structure and located outside the clamping groove structure; the adjusting assembly comprises an adjusting rod, a gasket and a torsion adjusting part, the adjusting rod is in threaded connection with the second mounting part, the gasket is connected to the first end of the adjusting rod, and the torsion adjusting part is connected to the second end of the adjusting rod. When the electromagnet is installed on the dobby box, the torsion wrench is adopted to adjust the pressure of the first adjusting rod and the second adjusting rod, the torsion on the left side and the right side can be conveniently adjusted to be consistent, the stress balance gap on the left side and the right side of the electromagnet is controlled to be consistent, and the problem of staggered patterns caused by unbalanced installation is solved.
Owner:GUANGDONG ESQUEL TEXTILES CO LTD

Height fixing sheet for single-shed velvet weaving and method for weaving Zhangzhou velvet by using height fixing sheet

PendingCN120591934ADobbiesPile-fabric loomsPulleyWire rope
The invention discloses a height fixing piece for single-shed velvet weaving and a method for weaving camphor satin velvet. The height fixing piece comprises a special heald frame, a special heald wire, a height fixing lifting piece, a height fixing inserting piece and a height fixing high-pressure strip. A heald lifting tension spring which is lifted upwards is arranged on the special heald frame, a traction steel wire rope is connected below the special heald frame, and the traction steel wire rope is connected with a heald lifting dobby on the upper side of the special heald frame through a deflecting pulley; the front end of the fixed-height insertion piece is inserted between the upper-layer cloth and the lower-layer cloth of the velvet cloth and is pressed by the fixed-high-pressure strip; the rear end of the fixed-height insertion piece is provided with a hinge joint and connected with the fixed-height lifting piece, the fixed-height lifting piece is inserted into the reed, and reed pieces are arranged on the two sides of the fixed-height lifting piece. A kidney-shaped long hole is formed in the other end of the fixed-height lifting sheet and is connected with a special harness wire; according to the method, higher-grade velvet can be woven on a single-shed loom, the velvet height of the Zhangzhou velvet satin velvet can be consistent, the satin face of the Zhangzhou velvet satin velvet is smooth, and the Zhangzhou velvet satin velvet conforms to the properties of full-real-silk yarn-dyed jacquard velvet fabric and has the requirements for unique style and noble temperament.
Owner:SENTEX CO LTD

Heald frame driving mechanism in doup technology

The utility model relates to the technical field of doup heald process, in particular to a heald frame driving mechanism in doup heald process, which comprises a support frame, a side beam is arranged on the support frame, a heald frame component is fixedly connected onto the side beam, the heald frame component comprises an upper heald plate, the upper end of the upper heald plate is fixedly connected with a driving component, and the upper heald plate is fixedly connected with the driving component. The driving assembly comprises a pressed rod, sliding seats are fixedly connected to the two ends of the pressed rod, the sliding seat at the lower end is slidably connected into a lower sliding rod, the sliding seat at the upper end is slidably connected into an upper sliding pipe, springs are fixedly connected to the sliding seats at the two ends, and dampers are connected into the springs in a sleeved mode. In the moving process of the upper heald frame, the stress rod extrudes the spring and the damper to absorb the stress of the upper heald frame, so that the damage to the upper heald frame is avoided.
Owner:ZHEJIANG JIAOZONG TEXTILE TECH CO LTD

Method for forming a shed on a dobby weaving machine and dobby weaving machine

ActiveDE102024118801B3DobbiesOther shedding mechanismControl theoryMechanical engineering
In a method for forming a shed on a dobby weaving machine having a plurality of heald shafts and a plurality of shaft drives, wherein each shaft drive drives at least one of the heald shafts independently of the other heald shafts via at least one transmission mechanism, wherein the at least one transmission mechanism defines a first and a second mechanical reversal point (MP1, MP2) of the at least one heald shaft driven by it, the shaft drive driving the at least one heald shaft is operated with an alternating direction of rotation. The at least one heald shaft is moved towards the first mechanical reversal point (MP1); upon reaching the first mechanical reversal point (MP1) of the heald shaft, the direction of rotation of the shaft drive is maintained, so that a first operational reversal point (BP1) of the heald shaft coincides with the first mechanical reversal point (MP1) of the heald shaft.The at least one heald shaft is moved via a shed closing position (13) in the direction of the second mechanical reversal point (MP2) and at the latest when the second mechanical reversal point (MP2) of the heald shaft is reached, the direction of rotation of the shaft drive is reversed to form a second operational reversal point (BP2) of the heald shaft.
Owner:LINDAUER DORNIER GMBH

A horizontally opposed crankshaft driven ribbon loom

ActiveCN121250621BSmallware loomsDobbiesElectric machineryCrankcase
This application provides a horizontally opposed crankshaft driven ribbon weaving machine, including a base frame with a crankcase, a crankshaft drive assembly installed inside the crankcase and a hem opening mechanism driven by a connecting rod, and a ribbon take-up mechanism, a weaving mechanism, and a weft feeding mechanism installed above the crankcase. The crankshaft drive assembly includes a horizontally opposed rear crankshaft group and a front crankshaft group. The first and second synchronous pulleys in the rear crankshaft group are connected by a rear main shaft. Since the motor is equipped with a drive pulley and connected to the first synchronous pulley through a first synchronous belt, when the motor is driven, it drives the rear crankshaft group and the front crankshaft group to rotate synchronously, so that all the hem openings in the hem opening mechanism run synchronously according to a preset opening rhythm. After the hem openings are formed by the hem group, the ribbon reaches the weaving mechanism to be woven into a ribbon, and then the take-up mechanism winds the ribbon into a container. By adopting a horizontally opposed method, the vibration and noise of the machine are reduced, and the overall processing efficiency of the ribbon weaving machine is improved.
Owner:CKY PRECISION MASCH CO LTD

Tiled double-layer carbon fiber fabric and weaving equipment and method thereof

PendingCN121110247ADobbiesLoomsFiberCarbon fibers
The invention provides a tiled double-layer carbon fiber fabric and weaving equipment and method thereof.The tiled double-layer carbon fiber fabric comprises an upper-layer base cloth, a lower-layer base cloth and a connecting line connecting the upper-layer base cloth and the lower-layer base cloth into a whole; the upper-layer base cloth is formed by interweaving upper-layer carbon fiber warp yarns, upper-layer high-strength silk warp yarns, upper-layer carbon fiber weft yarns, upper-layer high-strength silk weft yarns and middle-layer second carbon fiber weft yarns; the lower-layer base cloth is formed by interweaving lower-layer carbon fiber warp yarns, lower-layer high-strength silk warp yarns, lower-layer high-strength silk weft yarns, lower-layer carbon fiber weft yarns and middle-layer first carbon fiber weft yarns, and all the carbon fiber warp yarns and the carbon fiber weft yarns are in a tiled state; weaving equipment is transformed on the basis of an existing plain-color double-shed three-station weaving machine, and the weaving method comprises the steps of adjusting a front beam and a rear beam of the weaving machine, adjusting weft feeding equipment and a weft feeding sequence, warping, drafting and reed inserting, and lifting, picking and beating-up. According to the novel equipment and the novel method for weaving the double-layer carbon fiber fabric, the woven double-layer fabric carbon fibers are not prone to folding and fluffing, and the performance is good.
Owner:DONGHUA UNIV +1