CN219099461U - Multi-rapier weft insertion system of ultra-wide and ultra-thick three-dimensional flat knitting machine - Google Patents

Abstract

The utility model relates to the technical field of textile equipment and discloses a multi-rapier weft insertion system of an ultra-wide ultra-thick three-dimensional flat knitting machine, which comprises an air cylinder, a roller assembly, a multi-rapier weft insertion mechanism, a multi-rapier selection mechanism, a rapier fixing mechanism and a rapier lifting mechanism, wherein the multi-rapier weft insertion mechanism, the multi-rapier selection mechanism, the rapier fixing mechanism and the rapier lifting mechanism are respectively fixed on a main frame, the multi-rapier weft insertion mechanism comprises rapiers, photoelectric sensors, linear bearings and linear modules, the rapiers are connected with the linear modules through connecting blocks, a plurality of rapiers are arranged at the corresponding ends of the rapiers, the other ends of the rapiers are provided with the linear bearings, and the photoelectric point sensors are used for detecting the states of the corresponding rapiers. When a multi-layer fabric with a certain thickness is woven, different wefts can be selected simultaneously according to different weaving rules to perform weft insertion, so that the automatic weaving of multi-rapier weaving is finished, and the weaving efficiency is improved.

Description

Multi-rapier weft insertion system of ultra-wide and ultra-thick three-dimensional flat knitting machine

Technical Field

The utility model belongs to the field of textile equipment, and particularly relates to a multi-rapier weft insertion system of an ultra-wide and ultra-thick three-dimensional flat knitting machine for high-performance fibers such as carbon fibers.

Background

The three-dimensional carbon fiber textile structure composite material with a certain thickness is formed by compounding a three-dimensional carbon fiber fabric with resin by a physical and chemical method. Three-dimensional textile structures are woven, knitted, braided and nonwoven. The ultra-wide and ultra-thick three-dimensional loom consists of a system, and the weaving process of the three-dimensional fabric is generally divided into five motions of lifting heald, weft insertion, beating-up, warp feeding and reeling. For ultra-wide and ultra-thick three-dimensional fabrics, a plurality of weft yarns are often required to be inserted simultaneously, and the ultra-wide and ultra-thick fabric has special requirements on an insertion mechanism.

At present, carbon fiber composite fabrics having a certain thickness have been widely used in various fields due to their characteristics of light weight, high strength, easy processing, long life, diversification, recyclability, and the like. The three-dimensional flat knitting machine can realize full-automatic operation, the existing small three-dimensional flat knitting machine capable of weaving fabrics with certain thickness can finish full-automatic and efficient weaving, and the main working principles of the weft insertion mechanism are jet weft insertion, water jet weft insertion, multi-rapier weft insertion and the like. However, for the technical problem of reasonable design of the long-distance weft insertion forehead weft insertion mechanism, no good solution is provided. For some special requirements, such as the requirement of weaving ultra-wide and ultra-thick fabrics, the weft insertion distance is increased, and the existing working modes of the weft insertion mechanisms can have the problems of rapier sagging, rapier shake and the like, so that weft sagging is influenced, the side line mechanism and the beating-up mechanism are influenced, and the structure of the fabrics and the overall weaving efficiency of the loom are influenced.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to solve the technical problems that: when weaving fabrics with certain thickness, especially fabrics with special requirements, the mode of selecting rapier weft insertion is selected to improve the controllability and accuracy of long-distance weft insertion, but the mode of selecting rapier for long-distance weft insertion has obvious problems such as rapier sagging and rapier shake; the fabric thickness direction has many woofs, uses single rapier to carry out the weft insertion in proper order and influences weaving efficiency, and use current many rapiers to draw weft simultaneously and weave the rapier that causes not needing weft insertion also must pass through the shed, and can cause the damage to the yarn.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a super wide super thick three-dimensional flat loom's many rapier weft insertion system, includes cylinder, roller assembly, many rapier weft insertion mechanism, many rapiers select mechanism, rapier fixed establishment and rapier hold in the palm the mechanism of lifting, many rapier weft insertion mechanism is selected the mechanism, and rapier fixed establishment and rapier hold in the palm the mechanism and is fixed respectively on the main frame, many rapier weft insertion mechanism includes rapier, photoelectric sensor, linear bearing and linear module, the rapier passes through the connecting block and links together with linear module, the quantity of rapier is a plurality of, a plurality of rapier is all installed photoelectric sensor at its tip that corresponds, linear bearing is installed to the other end of rapier, and the light point sensor is used for detecting the state of corresponding rapier, and linear bearing plays the guide effect to the rapier, has preliminary supporting effect to the rapier simultaneously to improve weft insertion system's stability.

Preferably, the multi-rapier selecting mechanism comprises an air cylinder fixing plate, an air cylinder pushing head and rapier fixing components, wherein the air cylinder fixing plate is fixed on the frame, the air cylinder is arranged on the fixing plate, the number of the air cylinders is a plurality of the air cylinders, the air cylinder pushing heads are all arranged at one ends of the air cylinders, the air cylinders correspond to one set of rapier selecting mechanism, the air cylinder pushing heads are enabled to press the rapier selecting components to be selected through controlling the air cylinder to act, the rapier is locked, the selected rapier can move along with the linear module, the rapier which is not selected stays in place, the action is not performed, and the state of each rapier is fed back in real time by the photoelectric sensor, so that the rapier selecting accuracy is ensured.

Preferably, the rapier fixing mechanism comprises an upper shell, a rotating core, a torsion spring, a pin shaft, a lower shell and a pressure spring, wherein the upper shell and the lower shell are connected together and then are fixed on a rapier fixing block and a module connecting plate together, the inner wall of the upper shell is provided with a sliding block, and the inner wall of the lower shell is provided with a square groove type track; the square groove type track is characterized in that the square groove type track is internally provided with a rotating core, a torsion spring, a pin shaft and a pressure spring, the outer ring of the rotating core is provided with a groove type track, the side surface of the end part of the pin shaft is provided with two sliding blocks which are symmetrical front and back, under the operation of a cylinder, a push head of the cylinder pushes down the rotating core, the rotating core rotates under the action of the sliding blocks on the inner wall of an upper shell, the upper rotating core is connected with the pin shaft through the torsion spring, and the pin shaft is also pushed down when the rotating core is pushed down to lock a rapier; when the cylinder pushing head presses down the rotating core again, the pin shaft is sprung up by the pressure spring to loosen the rapier, so that the accuracy and stability of selecting the required rapier are ensured.

Preferably, the rapier support and lift mechanism comprises a U-shaped groove rolling wheel, a roller fixing plate, a roller fixing seat and a sliding rail, wherein the air cylinder and the air cylinder fixing plate are fixed on the main frame through the whole rapier support and lift mechanism, the roller assembly is connected with a sliding block of the sliding rail through the roller fixing seat, and the roller assembly can stretch out and recover along the sliding rail under the action of the air cylinder. When the rapier stretches out, the rapier lifting mechanism far away from the weft insertion assembly stretches out along the sliding rail by a certain distance under the pushing of the air cylinder, the stretched rapier is supported at the end part of the rapier, a certain distance is reserved between every two rollers, the distance can compensate the sagging amount of the rapier, the U-shaped groove rolling wheel has a guiding effect on the rapier, and meanwhile, the shake of the rapier can be weakened. Thereby ensuring the stability of weft insertion and providing for beating-up.

Compared with the prior art, the utility model provides a multi-rapier weft insertion system of an ultra-wide and ultra-thick three-dimensional flat knitting machine, which has the following beneficial effects:

in the multi-rapier weft insertion system of the ultra-wide and ultra-thick three-dimensional flat knitting machine, a linear module driving mechanism is adopted, a plurality of rapiers are connected with a linear module through a connecting block and a connecting plate, a rapier selecting mechanism is fixed on the connecting plate, a rapier lifting mechanism is fixed on a main frame through a fixing plate at the other end of a pinch plate, and the three mechanisms are matched to operate to finish long-distance multi-rapier weft insertion movement.

The mechanism has the advantages that:

1. when a multi-layer fabric with a certain thickness is woven, different wefts can be selected simultaneously according to different weaving rules to perform weft insertion, so that the automatic weaving of multi-rapier weaving is finished, and the weaving efficiency is improved.

2. The technical problems of rapier sagging and rapier shaking which occur when the rapier loom is used for long-distance weft insertion are overcome, so that the multi-rapier long-distance weft insertion becomes a feasible weft insertion mode.

3. The stability of the long-distance multi-rapier weft insertion is improved, and meanwhile, a guarantee is provided for a special interweaving structure of the three-dimensional fabric, and the loom is ready for beating up, so that a better weaving effect can be achieved.

4. The rapiers move simultaneously, only one power element is needed, and each rapier can be controlled independently.

The stability and the continuity of the long-distance rapier weft insertion mechanism are greatly improved, so that the multi-rapier weft insertion system is high in stability, high in overall efficiency and good in fabric effect.

Drawings

Fig. 1 is a schematic overall perspective view of the device of the present utility model.

FIG. 2 is a schematic perspective view of a multi-rapier weft insertion mechanism;

FIG. 3 is a schematic perspective view of a multi-rapier pick mechanism;

FIG. 4 is a schematic perspective view of a gripper securing mechanism;

FIG. 5 is a schematic perspective view of a gripper lifting mechanism;

FIG. 6 is a schematic perspective view of a gripper securing mechanism pivot;

FIG. 7 is a schematic perspective view of the lower housing of the gripper securing mechanism;

fig. 8 is a schematic perspective view of a block for assembly connection.

Wherein: 1. a main frame; 2. weft insertion support frames; 3. a multi-rapier selecting mechanism; 4. a multi-rapier weft insertion mechanism; 5. a rapier lifting mechanism; 6. beating-up buckle plate; 10. a module motor; 11. a linear module; 15. an induction piece; 16. a lifting block; 19. weft insertion fixing plates; 20. weft insertion rapier; 23. a rapier selecting cylinder; 24. the rapier selects an air cylinder fixing plate; 25. a rapier fixing mechanism; 26. the assembly is connected with the cushion block; 27. a rapier fixing block; 28. selecting an air cylinder pushing head by a rapier; 29. a lower shell of the rapier fixing mechanism; 30. a pin shaft; 31. the upper shell of the rapier fixing mechanism; 32. rotating the core; 33. a torsion spring; 34. a pressure spring; 35. a rapier lifting slider; 36. a rapier lifting guide rail; 37. a rapier lifting cylinder; 38. lifting a cylinder fixing plate; 39. a roller fixing plate; 40. a U-shaped groove rolling wheel; 41. the roller fixing seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, three major parts of the device of the utility model are mainly fixed on a main frame 1 and weft insertion brackets 2, the main frame 1 is positioned in the middle, a beating-up buckle 6 and a rapier lifting mechanism 5 are fixed on the main frame 1, two rapier lifting mechanisms 5 are symmetrically fixed on two sides of the main frame 1 respectively, two weft insertion supporting frames 2 are symmetrically placed on two sides of the main frame 1, and a multi-rapier selecting mechanism 3 and a multi-rapier weft insertion mechanism 4 are respectively fixed on each weft insertion supporting frame. The utility model adopts two sets of multi-rapier weft insertion mechanisms, two sets of multi-rapier selection mechanisms and two sets of rapier lifting mechanisms to be symmetrically placed. Firstly, determining a corresponding required weft insertion rapier 20 according to a fabric weaving rule, and selecting the required weft insertion rapier 20 by a multi-rapier selecting mechanism 3; (control rapier selecting cylinder 23 presses down rapier fixing mechanism 25, locks corresponding rapier.) then, under the drive of module motor 10, straight module 11 moves with weft insertion rapier 20, and at the same time, rapier lifting mechanism 5 far away from the side weft insertion rapier starts to work, under the action of rapier lifting cylinder 37, U-shaped groove rolling wheel 40 will extend along rapier lifting guide rail 36, and when weft insertion rapier 20 reaches the limit position, U-shaped groove rolling wheel 40 in extended rapier lifting mechanism 5 will be dragged and lifted, so as to complete weft insertion action.

The multi-rapier weft insertion mechanism of the multi-rapier weft insertion system of the ultra-wide ultra-thick three-dimensional flat knitting machine comprises a rapier selection mechanism, a module connecting plate, a weft insertion rapier support plate, a module motor 10, a linear module 11, a linear module sleeve, a rapier sliding rail, a photoelectric sensor, an induction piece 15, a block 16, a cable protection chain, a cable chain connecting piece, a weft insertion fixing plate 19, a weft insertion rapier 20, a weft insertion linear bearing and a weft insertion linear bearing seat. The multi-rapier weft insertion mechanism 4 is symmetrically arranged at two sides of the main frame 1, six sets of identical devices are arranged on the weft insertion fixing plate 19, and a rapier selection mechanism, a rapier sliding rail, a photoelectric sensor, an induction piece 15, a block 16, a weft insertion rapier 20, a weft insertion linear bearing and a weft insertion linear bearing seat are arranged on the rapier weft insertion fixing plate; under the drive of the linear module 11, the selected weft insertion rapier 20 completes weft insertion action under the guidance and lifting of the weft insertion linear bearing, and the photoelectric sensor transmits signals at all times to ensure that the weft insertion rapier 20 is in a correct state; after the weft insertion rapier 20 reaches the limit position and completes the thread hooking action, the selected weft insertion rapier 20 completes the retraction action under the guidance and lifting of the weft insertion linear bearing under the driving of the linear module 11, and completes the whole weft insertion circulation action.

The multi-rapier weft insertion mechanism of the multi-rapier selection system of the ultra-wide super-thick three-dimensional flat knitting machine comprises a rapier selection cylinder 23, a rapier selection cylinder fixing plate 24, a rapier fixing mechanism 25, a component connection cushion block 26, a rapier fixing block 27, a weft insertion rapier 20 and a rapier selection cylinder push head 28. The rapier selecting cylinder fixing plate 24 is fixed on the weft insertion support frame 2 with one side, 6 rapier selecting cylinders 23 are arranged on the rapier selecting cylinder fixing plate 24, each rapier selecting cylinder fixing plate 24 is provided with a rapier selecting cylinder push head 28, the rapier selecting cylinder push heads 28 and a rotating core 32 in the rapier fixing mechanism 25 are coaxially arranged, the rapier fixing mechanism 25 is connected with the component connecting cushion block 26, the weft insertion rapier 20 is inserted in the middle of the component connecting cushion block 26, the diameter of a transverse through hole in the middle of the component connecting cushion block 26 is slightly larger than the outer diameter of the weft insertion rapier 20, and in an initial state, the weft insertion rapier 20 is horizontally lifted by weft insertion linear bearings at two ends and a weft insertion rapier support plate, and at the moment, the weft insertion rapier 20 can move freely transversely. Under the given requirement of fabric weaving rules, the rapier needing weft insertion is selected by the multi-rapier selecting mechanism, the weft insertion rapier 20 needing weft insertion is driven by the linear module 11 to complete weft insertion, and the non-selected rapier is kept at an initial position under the support of the weft insertion linear bearing and the weft insertion rapier support plate and does not do weft insertion.

The multi-rapier selecting mechanism of the multi-rapier selecting system of the ultra-wide ultra-thick three-dimensional flat knitting machine comprises a weft insertion rapier 20, a rapier selecting cylinder 23, a rapier selecting cylinder fixing plate 24, a rapier fixing mechanism 25, a component connecting cushion block 26, a rapier fixing block 27 and a rapier selecting cylinder push head 28. The rapier selecting cylinder fixing plates 24 are fixed on the weft insertion support frame 2, the rapier selecting cylinders 23 are fixed on the rapier selecting cylinder fixing plates 24, each rapier selecting cylinder 23 is placed coaxially with the rotating core 32 of the rapier fixing mechanism 25, so that the rapier selecting cylinder push head 28 can be just pressed against the middle groove of the rotating core 32, the weft insertion rapier 20 passes through the component connection cushion block 26, the rapier fixing mechanism 25 is arranged on the component connection cushion block 26, the component connection cushion block 26 is of a cuboid structure, a through hole with a diameter slightly larger than the outer diameter of the weft insertion rapier 20 is transversely formed in the structure, the rapier 20 is placed, a hole with a certain depth is formed in the direction perpendicular to the weft insertion fixing plate 19, the weft insertion rapier 20 is fixed by the pin shaft 30, and the through hole is placed coaxially with the pin shaft 30 of the rapier fixing mechanism 25 at a certain distance from the end of the rapier 20 during installation, so that the weft insertion rapier 20 is fixed.

The rapier fixing mechanism of the multi-rapier selecting system of the ultra-wide ultra-thick three-dimensional flat knitting machine comprises a component connecting cushion block 26, a rapier fixing mechanism lower shell 29, a pin shaft 30, a rapier fixing mechanism upper shell 31, a rotary core 32, a torsion spring 33 and a pressure spring 34.

The mechanism is mainly divided into an inner structure and an outer structure, wherein the outer part comprises a rapier fixing mechanism upper shell 31 and a rapier fixing mechanism lower shell 29, a small fixed sliding block is designed at the lower end of the inner wall of the rapier fixing mechanism upper shell 31, the mechanism of the rapier fixing mechanism lower shell 29 is shown in fig. 7, five groove-shaped tracks are commonly arranged on the inner wall of the mechanism, and two long two short four groove-shaped tracks and an annular groove track at the bottom are uniformly distributed on the inner wall of the mechanism at intervals. The inner structure is divided into a rotating core 32, a pin shaft 30, a torsion spring 33 and a pressure spring 34, which are sequentially arranged from top to bottom, wherein eight groove rails, four vertical rails and four inclined rails are distributed on the outer wall damage 2 of the lower half part of the rotating core 32 as shown in fig. 6; the upper end side of the pin shaft 30 is provided with a sliding block, a pressure spring 34 is sleeved on the pin shaft 30, a torsion spring 33 is connected between the pin shaft 30 and the rotating core 32, the rotating core 32 moves down integrally under the pushing of the rapier selecting cylinder push head 28 during operation, the rotating core 32 rotates and descends along a groove rail on the rotating core 32 under the action of the upper shell sliding block, the sliding block on the pin shaft 30 does not rotate under the limit of a lower shell groove rail, meanwhile, the torsion spring accumulates a certain torsion force, when the upper shell sliding block rotates from bottom to top along the groove rail on the rotating core, namely, when the upper shell sliding block rotates 1/4 circle, the sliding block on the rotating core turns over the highest point of the groove rail of the rotating core to enter the vertical groove rail, the sliding block of the pin shaft also moves from the top of the lower shell to the bottom groove rail along the groove rail of the lower shell, at the moment, the force is provided for the pin shaft 30 under the action of the torsion spring 33, the pressure spring 34 also provides an upward force for the pin shaft, the sliding block on the pin shaft 30 rotates along the rail by 1/4 circle and is pushed into the short groove rail, and the weft insertion groove 29 is selected, and the rapier is fixed with the rapier, and the rapier is required to be selected. When the selection of the rapier needs to be canceled, the operation is repeated, the rotary core 32 is pressed down again and then is rotated by 1/4 circle, the pin shaft 30 is rotated by 1/4 circle under the action of the torsion spring 33 and the compression spring 34, the sliding block on the compression spring passes through the annular groove rail and enters the long groove rail from the short groove rail, the inner structure of the machine hook moves upwards under the action of the compression spring 34, and the pin shaft 30 loosens the weft insertion rapier 20. The mechanism can select the rapier more accurately and stably.

The rapier lifting mechanism of the multi-rapier selecting system of the ultra-wide ultra-thick three-dimensional flat knitting machine comprises a lifting slide block 35, a rapier lifting guide rail 36, a rapier lifting cylinder 37, a lifting cylinder fixing plate 38, a roller fixing plate 39, a U-shaped groove rolling wheel 40 and a roller fixing seat 41. The mechanism is fixed on two sides of the main frame 1, the U-shaped groove rolling wheels 40 are fixed on the rolling wheel fixing seats 41 through rolling wheel fixing plates 39, two sides of the rolling wheel fixing seats 41 are connected with sliding rails, and the rapier lifting cylinder 37 is arranged in the middle of the sliding rails and connected with the rolling wheel fixing seats 41.

When the weft insertion mechanism starts weft insertion, the rapier lifting mechanism far away from the weft insertion mechanism pushes out the U-shaped groove rolling wheels 40 along the direction of the sliding rail under the action of the rapier lifting cylinder 37, a certain distance is reserved between every two U-shaped groove rolling wheels 40, the distance is used for compensating the sagging amount of the weft insertion rapier 20, when weft insertion is performed, the weft insertion rapier 20 can generate sagging and jitter due to the self weight and the speed when reaching a designated position, when the rapier stretches out, when the rapier stretches to the designated position, the U-shaped groove rolling wheels 40 also reach the designated position, the weft insertion rapier is inserted into the two U-shaped groove rolling wheels 40, the groove structure of the U-shaped groove rolling wheels 40 guides, lifts and eliminates jitter on the weft insertion rapier 20, and after the weft insertion rapier is retracted, the rapier lifting mechanism also returns to the initial position to prepare for next rapier lifting. The mechanism well improves the stability of the long-distance rapier weft insertion mechanism.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A multi-rapier weft insertion system of an ultra-wide ultra-thick three-dimensional flat knitting machine is characterized in that: including cylinder, wheel components, many rapiers weft insertion mechanism, many rapiers select mechanism, rapier fixed establishment and rapier hold in the palm the mechanism, many rapiers weft insertion mechanism, rapier fixed establishment and rapier hold in the palm the mechanism and fix respectively on the main frame, many rapiers weft insertion mechanism includes rapier, photoelectric sensor, linear bearing and linear module, the rapier passes through the connecting block and links together with linear module, the quantity of rapier is a plurality of, and is a plurality of photoelectric sensor is all installed at its tip that corresponds to the rapier, linear bearing is installed to the other end of rapier.

2. The multi-rapier weft insertion system of an ultra-wide and ultra-thick three-dimensional flat knitting machine according to claim 1, characterized in that: the multi-rapier selecting mechanism comprises an air cylinder fixing plate, air cylinders, air cylinder pushing heads and rapier fixing assemblies, wherein the air cylinder fixing plate is fixed on a frame, the air cylinders are arranged on the fixing plate, the number of the air cylinders is a plurality of, the air cylinder pushing heads are all arranged at one ends of the air cylinders, and a plurality of the air cylinders correspond to one set of rapier selecting mechanism.

3. The multi-rapier weft insertion system of an ultra-wide and ultra-thick three-dimensional flat knitting machine according to claim 1, characterized in that: the rapier fixing mechanism comprises an upper shell, a rotary core, a torsion spring, a pin shaft, a lower shell and a pressure spring, wherein the upper shell and the lower shell are connected together and then are fixed on a rapier fixing block and a module connecting plate together, the inner wall of the upper shell is provided with a sliding block, and the inner wall of the lower shell is provided with a square groove type track; the square groove type track internal structure is a rotating core, a torsion spring, a pin shaft and a compression spring, the outer ring of the rotating core is provided with a groove type track, and the side surface of the end part of the pin shaft is provided with two sliding blocks which are symmetrical front and back.

4. The multi-rapier weft insertion system of an ultra-wide and ultra-thick three-dimensional flat knitting machine according to claim 1, characterized in that: the rapier lifting mechanism comprises a U-shaped groove rolling wheel, a roller fixing plate, a roller fixing seat and a sliding rail, wherein the air cylinder and the air cylinder fixing plate are fixed on the main frame through the fixing plate, and the roller assembly is connected with a sliding block of the sliding rail through the roller fixing seat.

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