CN102995212A - Selecting and comprehensively actuating mechanism for rotary type dobby opening device - Google Patents
Selecting and comprehensively actuating mechanism for rotary type dobby opening device Download PDFInfo
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- CN102995212A CN102995212A CN2012105641474A CN201210564147A CN102995212A CN 102995212 A CN102995212 A CN 102995212A CN 2012105641474 A CN2012105641474 A CN 2012105641474A CN 201210564147 A CN201210564147 A CN 201210564147A CN 102995212 A CN102995212 A CN 102995212A
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Abstract
The invention relates to a selecting and comprehensively actuating mechanism for a rotary type dobby opening device and belongs to the field of textile machinery. The selecting and comprehensively actuating mechanism provided by the invention comprises a spindle, a swing arm and an eccentric disc, a spline disc, a clutch claw, a first signal swing arm and a second signal swing arm and a magnet absorption swing arm, and the selecting and comprehensively actuating mechanism is characterized in that a first inclined plane and a second inclined plane are formed on the two sides of an opening of a first eccentric disc meshing cavity; a third inclined plane and a fourth inclined plane are formed on the two sides of the opening of a second eccentric disc meshing cavity; a fifth inclined plane and a sixth inclined plane are formed on the two sides of a first swing arm meshing part, and the surface on one side of the first swing arm meshing part forms a first milling plane, a first transition arc surface is formed between the first milling plane and the fifth inclined plane, and a second transition arc surface is formed between the first milling plane and the sixth inclined plane; and a seventh inclined plane and an eighth inclined plane are formed on the two sides of the second swing arm meshing part, and the surface on one side of the second swing arm meshing part forms a second milling plane, a third transition arc surface is formed between the second milling plane and the seventh inclined plane, and a fourth transition arc surface is formed between the second milling plane and the eighth inclined plane. The selecting and comprehensively actuating mechanism provided by the invention has the advantages that locking is reliable and energy consumption is saved.
Description
Technical field
The invention belongs to technical field of textile machine, executing agency is combined in the choosing that is specifically related to a kind of rotary type multi-arm shedding device
Background technology
Dobby device is that the woven designs tissue signal is converted to mouth-opening action and makes one of loom opening features of up and down shedding motion with this heald frame that drives loom, and dobby device is divided into passive multi-arm device and positive dobby by the difference of its opening form.
Generally use along with shuttleless loom, especially loom speed improves constantly, passive multi-arm device is because existing motional inertia to impact, not only kinetic energy consumption is large, and be difficult to ensure the steady high speed motion of loom, for example reciprocating inertial impact force can cause the serious vibration of loom, and the active type multi-arm open device can overcome this shortcoming of passive multi-arm device, therefore, the active type multi-arm open device be now and even from now on a period be the supporting main flow device of loom.
In view of the rotary type multi-arm shedding device belongs to the positive dobby category, it is again the pith of shedding device of weaving machine in view of the rotary type multi-arm shedding device, therefore be referred to as the rotary type multi-arm shedding device, it is read mechanism, the comprehensive executing agency of choosing and shedding mechanism by body part, transmission mechanism, signal and forms.Transmission mechanism is the variable motion that the uniform motion that will come from loom transfers the multi-arm main shaft to, signal is read mechanism and is transferred the fabric tissue signal of telecommunication to the machinery choosing to combine signal, whether choosing is combined executing agency and is then moved according to the comprehensive signal execution of machinery choosing eccentric stiffener, and shedding mechanism is used to form and exports the heald frame harness motion.It is the important mechanism of rotary type multi-arm shedding device that executing agency is combined in choosing, and its correctness of carrying out the comprehensive action of choosing can for example produce flaw when the comprehensive fabric that can make when botching routines of choosing occurring to the mass formation impact of fabric, affects the lifting of fabric class.
TECHNICAL INFORMATION SOURCES about the rotary type multi-arm shedding device can be by being seen in the disclosed Chinese patent literature, typically such as invention patent mandate notification number CN1057352C(rotary dobby and the loom of equipping this type of dobby), this patent scheme has overcome FR-A-2540524(loom rotary dobby to a certain extent) deficiency, its technical scheme that provides is that the pallet with pivoted arm (patent claims pivoting arm) changes the structure with inside and outside two bearing-surfaces into, uses the angular movement amplitude (seeing that Fig. 1 of this patent is to the description of shown in Figure 5 and 4 page of the 3rd row of Instructions Page 3 final stage to the) that reduces pivoted arm; First mating surface of eccentric disc (patent pan of a steelyard sheet) is changed into greater than second mating surface of eccentric disc distance to the rotation of main shaft to the distance of the rotation of main shaft (patent claims axle), so, when the first mating surface of pivoted arm and eccentric disc meshes, pivoted arm just exceeds the sphere of action of reading device, specifically can be referring to the explanation of Fig. 3 and the 7th page of the 4th row of the 6th page of inverse the 2nd row of specification of this patent.
Objective, above-mentioned CN1057352C has reduced the suffered elliptical gear of pivoted arm to a certain extent effectively, and consequent energy consumption and noise are minimized, although this energy consumption and noise are inappreciable with respect to whole work energy consumptions and the noise of rotary dobby structure, shown after all the 2nd section alleged technique effect of Instructions Page 3.
The described shortcoming that above-mentioned CN1057352C exists is overcome by " rotary type multi-arm shedding mechanism " that invention patent mandate notification number CN102400257B recommends, specifically can be with reference to specification the 007th to 009 hurdle and the 0011st hurdle of this CN102400787B.Should say objective its described technique effect in specification the 0021st hurdle that embodied of this CN102400257B, but the phenomenon of botching routines that still exists the signal swing arm to match with eccentric disc, especially this fault phenomenon finally can cause fabrics cloth cover to produce flaw, makes high-grade fabric lose the market advantage.
Analyze through the applicant, aforementioned signal swing arm matches with eccentric disc botches routines and comes from the signal swing arm eccentric disc lock out action is lost reliably, because eccentric disc static to moment from the High Rotation Speed state (by signal swing arm locking) this process of state, have huge inertia kinetic energy, this inertia kinetic energy is offseted with the useful effect of the spring force of the back-moving spring that is connected in the signal swing arm entirely, under the certain situation of the spring force of back-moving spring, its effect (effect refers to that the signal swing arm is to the action effect of eccentric disc locking) depends on swing arm engaging piece in the signal swing arm and the just right meshing relation between the eccentric disc field of conjugate action on the eccentric disc, that is to say that its effect depends on the stressed angle of engagement (time point or title time point) and the eccentric disc field of conjugate action.And there is the too early shortcoming of some engagement time in aforementioned patent, inertia kinetic energy when engagement time, point namely can make eccentric disc break away from main shaft (flower keyboard) too early in advance increases, to this, although can adopt increase back-moving spring power is offseted, but the spring force that increases back-moving spring can increase energy consumption, is unfavorable for energy savings.On the other hand, at the swing arm engaging piece of signal swing arm and the eccentric disc field of conjugate action from begin to touch in the period of finishing engagement namely the process of engagement, the variation at aforementioned stressed angle is larger, thereby the maximum that has affected to a certain extent the spring force effect of back-moving spring is utilized degree.Again on the one hand, because the swing arm engaging piece of signal swing arm and the structure of the eccentric disc field of conjugate action on the eccentric disc are all lost rationally, cause the signal swing arm larger to eccentric disc holding torque under static state, thereby also increased the energy consumption of rotary type multi-arm shedding device.
Want the angle of its kind must first sharpen his tools from the worker and consider, undoubtedly, use lifting fabric class if will guarantee the fabrics cloth cover quality, then essential signal swing arm and the eccentric disc combination miss drawback of eliminating as the comprehensive executing agency of choosing.Yet, because the application of rotary type multi-arm shedding device has had long history, industry generally believes that the technology status of this device is tending towards saturated, be difficult to obtain substantial breakthrough, still, use the fabric production firm of rotary type multi-arm shedding device to expect that expectation and the cry of early settlement aforementioned technical problem are increasingly strong, just Given this, the applicant has done deeply and useful exploration finds a way to resolve the problem finally, has formed technical scheme described below
Summary of the invention
the present invention is to provide a signal to help reflect the engagement arm portion of the arm, the eccentric disk of the eccentric engagement between the engaging surface plate effect, and the arm so as to protect the signal the reliability of the eccentric disk is locked or released, is conducive to the eccentric disk from the spindle when the keyboard spend time actively driven tend to spend the spindle movement of the keyboard is consistent pause point, and in order to reduce the inertia of the kinetic energy of the eccentric disk and useful the protection of the signal arm of the eccentric disk arm engaging portion engaging surface between the eccentric disc from the beginning of exposure to the Process of full engagement angle remains substantially unchanged, while the return spring whereby the eccentric disk easy enough to offset the inertia kinetic energy, and the eccentric disk reliable locking positive work done more efficiently, and save energy reflects the effect of the ideal rotary dobby device selected consolidated actuator.
Task of the present invention is finished like this, and executing agency is combined in a kind of choosing of rotary type multi-arm shedding device, comprises a main shaft; One swing arm and an eccentric disc, swing arm is arranged on the eccentric disc by the swing arm bearing, eccentric disc is arranged on the main shaft by the eccentric disc bearing, in the position, dish edge of this eccentric disc formation one first eccentric disc engagement chamber and one second eccentric disc engagement chamber are arranged, apart 180 ° at the circumferencial direction of eccentric disc in first, second eccentric disc engagement chamber; One flower keyboard, this flower keyboard are positioned on the main shaft and with main shaft and rotate, and consisting of at this flower keyboard dish edge has one first groove and one second groove, apart 180 ° at the circumferencial direction of flower keyboard of first, second grooves; Pivot with swing state and to be arranged on a clutch pawl on the eccentric disc, one end of this clutch pawl is corresponding with the spacer pin on being arranged on eccentric disc, and be extended with one at this end and be used for described the first groove or the flange that matches with described the second groove and formation one reaction spring holder being arranged, be fixed with an end of a reaction spring at this reaction spring holder, and the other end of reaction spring is fixed on the eccentric disc, the other end of clutch pawl and consist of at the position corresponding to described the first eccentric disc engagement chamber a recessed edge is arranged; One middle part pivot be arranged on the first signal arm shaft and an end end consist of and one first swing arm engaging piece arranged and other end end consists of the one first first signal swing arm of inhaling iron swing arm haptic element is arranged, wherein: the first swing arm engaging piece matches with described the first eccentric disc engagement chamber or meshes the chamber with described the second eccentric disc and matches; One middle part pivot be arranged on the secondary signal arm shaft and an end end consist of and one second swing arm engaging piece to be arranged and other end end consists of the one second secondary signal swing arm of inhaling iron swing arm haptic element is arranged, wherein: the second swing arm engaging piece matches with described the first eccentric disc engagement chamber or meshes the chamber with described the second eccentric disc and matches; One pivots is arranged on the suction iron arm shaft and suction iron swing arm alternately described the first suction iron swing arm haptic element and second is inhaled the effect of iron swing arm haptic element under the effect of electromagnet, wherein: the structure of described first, second signal swing arm is mutually the same, and each other alternately to described eccentric disc effect, be characterised in that: a side of the accent in described the first eccentric disc engagement chamber consists of one first inclined plane, and the opposite side of described accent and consist of in the position corresponding to the first inclined plane one second inclined plane is arranged; One side of the accent in described the second eccentric disc engagement chamber consists of one the 3rd inclined plane, and the opposite side of accent and consist of in the position corresponding to the 3rd inclined plane one the 4th inclined plane is arranged; The side of described the first swing arm engaging piece towards described the first inclined plane consists of one the 5th inclined plane, match with described the first inclined plane in the 5th inclined plane, and the side formation of the first swing arm engaging piece towards described the second inclined plane has one the 6th inclined plane, match with the second inclined plane in the 6th inclined plane, and the first swing arm engaging piece constitutes the first milling flat over against the surface of a side in described the first eccentric disc engagement chamber, the bottom in this first milling flat and the first eccentric disc engagement chamber is discontiguous, wherein: consisting of between the first milling flat and the 5th inclined plane has a First Transition arc surface, and consist of between the first milling flat and the 6th inclined plane one second transition circle cambered surface is arranged; The side of described the second swing arm engaging piece towards described the 3rd inclined plane consists of one the 7th inclined plane, the 7th inclined plane and described the 3rd inclined plane are discontiguous, and the side formation of the second swing arm engaging piece towards described the 4th inclined plane has one the 8th inclined plane, the 8th inclined plane and the 4th inclined plane are discontiguous, and the second swing arm engaging piece constitutes the second milling flat over against the surface of a side in described the second eccentric disc engagement chamber, the bottom in this second milling flat and the second eccentric disc engagement chamber is discontiguous, wherein: consisting of between the second milling flat and the 7th inclined plane has one the 3rd transition circle cambered surface, the 3rd transition circle cambered surface contacts with the 3rd inclined plane, and consist of between the second milling flat and the 8th inclined plane one the 4th transition circle cambered surface is arranged, the 4th transition circle cambered surface contacts with the 4th inclined plane.
In a specific embodiment of the present invention, on the outer wall of described main shaft and along the length direction of main shaft, offer one first flower keyboard locating slot and one second flower keyboard locating slot, this is first years old, the second flower keyboard locating slot is separated by 180 ° at the circumferencial direction of main shaft each other, the central authorities of described flower keyboard consist of a main shaft mating holes, hole wall at this main shaft mating holes is extended with one first location lug and one second location lug, wherein, the position of the first location lug and tenon corresponding with described the first flower keyboard locating slot enters in the first flower keyboard locating slot, and the position of the second location lug is corresponding with described the second flower keyboard locating slot and tenon enters in the second flower keyboard locating slot.
In another specific embodiment of the present invention, be hinged with a hinged pivoted arm Connection Block in described swing arm, be fixed with one for the hinged pivoted arm that is connected with the heald frame of loom at this hinged pivoted arm Connection Block, wherein: the shape of described swing arm is Chinese lute shape.
In another specific embodiment of the present invention, consisting of on the dish edge of described eccentric disc has the reaction spring breach of stepping down, and described reaction spring is corresponding to the step down position of breach of this reaction spring.
In another specific embodiment of the present invention, be installed with a spacer pin at described eccentric disc, consist of the gap of soaring between the top of this spacer pin and the surface of eccentric disc, described clutch pawl is insinuated in the described gap of soaring towards an end of spacer pin, and the nearly middle part of the length direction of clutch pawl swingingly is arranged on the eccentric disc by clutch pawl axle.
Also have in the specific embodiment of the present invention, the global shape of described clutch pawl is banana-shaped substantially.
More of the present invention and in specific embodiment, one end of described reaction spring is fixed with one first fixture, this first fixture is fixed on the described reaction spring holder, and the other end of reaction spring is fixed with one second fixture, this second fixture is fixed on the steady pin, and steady pin is fixed on the described eccentric disc.
In of the present invention and then specific embodiment, in described first signal swing arm and be connected with one towards an end of described suction iron swing arm and be used for the first back-moving spring that the first signal swing arm is resetted, be used for the second back-moving spring that the secondary signal swing arm is resetted and in described secondary signal swing arm and equally be connected with one towards an end of inhaling the iron swing arm.
Of the present invention again more and in specific embodiment, the angle of inclination on described the first, the 5th inclined plane is equal to each other; The angle of inclination on described the second, the 6th inclined plane is equal to each other, and the angle of inclination on first, second inclined plane is equal to each other.
In again of the present invention and then specific embodiment, the contact form that described the first, the 5th inclined plane contacts with each other and the second, the 6th inclined plane contacts with each other constitutes double inclined plane contact, is 90 ° with pivot from the first signal swing arm to the angle that consists of the line at the middle part that described double inclined plane contacts to the line of the pivot of described main shaft from described the first eccentric disc engagement chamber.
Technical scheme provided by the invention is owing to done improvement to the first swing arm engaging piece of first signal swing arm and the second swing arm engaging piece of secondary signal swing arm, simultaneously to first of eccentric disc, improvement has been done in the second eccentric disc engagement chamber, therefore with regard to the first swing arm engaging piece, the first swing arm engaging piece contacts with the engagement of eccentric disc and is the double-side oblique-wedge form, thereby has reliable locking effect, can ensure that eccentric disc is no matter at a high speed or lower-speed state all can be within the extremely short time remains static and lasts till that next choosing combines action from rotation status, the time point that is finally guaranteed the main shaft drives of the flower keyboard on the eccentric disc disengaging main shaft trends towards consistent with the motion pause point of flower keyboard, the inertia kinetic energy of eccentric disc is effectively reduced, simultaneously because substantially constant in the angle of action of mesh inclined plane from begin to touch the process of fitting fully, thereby make the first back-moving spring be enough to offset the inertia energy of eccentric disc and with its positive lock, the positive work that the first back-moving spring is done is more effective, has avoided prior art to rely on the active force that increases the first back-moving spring and has offseted the inertia energy of eccentric disc and be minimized energy consumption.
Description of drawings
Fig. 1 is the embodiments of the invention structure chart.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the schematic diagram that the first swing arm engaging piece matches with the first eccentric disc engagement chamber.
Fig. 4 is the schematic diagram that the second swing arm engaging piece matches with the second eccentric disc engagement chamber.
Fig. 5 inhales the schematic diagram that iron swing arm haptic element is done the time spent for inhaling the iron swing arm to second of secondary signal swing arm.
Fig. 6 is the curve movement schematic diagram of main shaft.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the present invention program to the description of embodiment, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Please be referring to Fig. 1 and Fig. 2, provided a main shaft 1, according to known general knowledge, be equipped with the swing arm 2 that equates with the quantity of the heald frame of loom, eccentric disc 3, flower keyboard 4, clutch pawl 5, first, second signal swing arm 6,7 and inhale iron swing arm 8 at this main shaft 1, following description is for a heald frame.On the outer wall of main shaft 1 and along the length direction of main shaft 1, consist of one first flower keyboard locating slot 11 and one second flower keyboard locating slot 12 are arranged, and apart 180 ° at the circumferencial direction of main shaft 1 of first, second flower keyboard locating slots 11,12, namely both are corresponding.
Global shape is arranged on the eccentric disc 3 by swing arm bearing 21 just as the swing arm 2 of Chinese lute shape, Sports band movable pendulum arm 2 by eccentric disc 3 swings, by illustrated in figures 1 and 2, in swing arm 2, be hinged with a hinged pivoted arm Connection Block 22 by a hinging pin shaft 222, on this hinged pivoted arm Connection Block 22 with welding, riveted joint or be fixed with a hinged pivoted arm 221 with other equivalent form, hinged pivoted arm 221 is used for being connected with the heald frame (not shown) of loom, drive hinged pivoted arm 221 by the swing of swing arm 2, and then moved up and down by hinged pivoted arm 221 drive heald frames.
An eccentric disc 3 is arranged on the main shaft 1 by eccentric disc bearing 31, and eccentric disc 3 does not rotate with main shaft 1, but is driven by the following flower keyboard 4 that is about to describe.Dish edge formation at this eccentric disc 3 has one first eccentric disc engagement chamber 32 and one second eccentric disc engagement chamber 33, first, second eccentric disc engagement chamber 32,33 180 ° of each intervals on the dish edge of the circumferencial direction of eccentric disc 3, namely first, second eccentric disc engagement chamber 32,33 keeps aspectant position relationship each other.On eccentric disc 3 and towards the surface of a side of the following clutch pawl 5 that also will describe, be fixed with a spacer pin 34 and a spacer pin 36, wherein, maintain the gap of soaring between the surface of spacer pin 36 and eccentric disc 3, the surface that is to say the top of spacer pin 36 and eccentric disc 3 be do not paste tactile.Also be formed with a disappearance part on the dish edge of this external eccentric disc 3, partly constitute the reaction spring breach 35 of stepping down by this disappearance.
The flower keyboard 4 that the above has mentioned also can be described as the internal spline dish, the central authorities of this flower keyboard 4 have a main shaft mating holes 43 that is used for being nested with on the aforesaid main shaft 1, and the hole wall at this main shaft mating holes 43 is extended with one first location lug 44 and one second location lug 45, apart 180 ° at the circumferencial direction of main shaft mating holes 43 of first, second location lugs 44,45.By shown in Figure 2, the first location lug 44 matches with the first flower keyboard locating slot 11 on the aforesaid main shaft 1, and the second location lug 45 matches with the second flower keyboard locating slot 12 on the main shaft 1, that is to say first, second location lug 44,45 respectively tenon enter in first, second flower keyboard locating slot 11,12, thereby rotarily drive flower keyboard 4 rotation by main shaft 1.Again, flower keyboard dish edge formation at flower keyboard 4 has one first groove 41 and one second groove 42, apart 180 ° of the position of this first, second groove 41,42 on flower keyboard dish edge, namely the circumferencial direction at flower keyboard 4 keeps aspectant position relationship each other.
One shape is substantially banana-shaped or claims the nearly middle part of meniscate clutch pawl 5 to be arranged on swingably on the eccentric disc 3 by clutch pawl axle 54, one end of this clutch pawl 5 also can claim backing pin with aforesaid spacer pin 34() corresponding, and in this end formation one flange 51 and a reaction spring holder 52 are arranged, flange 51 matches with aforesaid flower keyboard 4.More particularly, flange 51 alternately matches with the first groove 41 and the second groove 42 on the flower keyboard 4, when flange 51 matches with the first groove 41 or with the second groove 42, then drives eccentric discs 3 motions by flower keyboard 4.Be fixed with an end of reaction spring 521 at aforesaid reaction spring holder 52, and the other end of reaction spring 521 and aforesaid eccentric disc 3 are fixing.Specifically: the corresponding aforesaid reaction spring in the middle part of reaction spring 521 breach 35 of stepping down, one end of reaction spring 521 namely is fixed with one first fixture 5211 towards an end of reaction spring holder 52, these the first fixture 5211 buttons also can claim the reaction spring fixing feet at reaction spring holder 52(admittedly) on, and the other end of reaction spring 521 is fixed with one second fixture 5212, and this second fixture 5212 is fixed on the eccentric disc 3 by steady pin 52121.By shown in Figure 1, the other end of clutch pawl 5 namely in an end of aforesaid spacer pin 36 probes into the gap of soaring between the aforesaid surface that is formed in spacer pin 36 and eccentric disc 3, thereby stop the situation that upwarps that clutch pawls 5 might occur by this spacer pin 36.On clutch pawl 5 and in the position corresponding to aforesaid the first eccentric disc engagement chamber 32, consist of a recessed edge 53 is arranged, this recessed edge 53 is slightly to the first eccentric disc field of conjugate action, 32 depressions, in order to alternately do cooperating of conflict form with following first, second signal swing arm 6,7 that will describe.
The middle part of aforesaid first signal swing arm 6 is arranged on the first signal arm shaft 61 that is fixed on the not shown frame rotationally, consist of in an end end of this first signal swing arm 6 have one that be meshed with aforesaid the first eccentric disc engagement chamber 32 or mesh the first swing arm engaging pieces 62 that chamber 33 is meshed with the second eccentric disc, and the end of the other end of first signal swing arm 6 formation has one first to inhale iron swing arm haptic element 63, and is connected with one for the first back-moving spring 64 that first signal swing arm 6 is resetted at this other end.The middle part of the secondary signal swing arm 7 that structure and the mechanism of action and first signal swing arm 6 are identical is arranged on the secondary signal arm shaft 71 rotationally, one end end consist of have one with first, second eccentric disc engagement chamber 32,33 the second swing arm engaging pieces 72 of engagement alternately, and the end of the other end of secondary signal swing arm 7 formation has one second to inhale iron swing arm haptic element 73, and is connected with one for the second back-moving spring 74 that secondary signal swing arm 7 is resetted at this other end.
The suction iron swing arm 8 that belongs to Electromagnetic Control mechanism pivots to be arranged on and inhales on the iron arm shaft 81, and alternately aforesaid first, second is inhaled 63,73 effects of iron swing arm haptic element under the effect of electromagnet 82.
Please be referring to Fig. 5, when the tactile pawl 83 of inhaling iron swing arm 8 touches the second suction iron swing arm haptic element 73 of secondary signal swing arm 7, this secondary signal swing arm 7 makes the second swing arm engaging piece 72 separate with the second eccentric disc engagement chamber 33 on the eccentric disc 3 under the state of the active force that overcomes the second back-moving spring 74, that is to say, secondary signal swing arm 7 does not act on eccentric disc 3, and act on eccentric disc 3 by first signal swing arm 6, namely be meshed with the first eccentric disc engaging piece 32 on the eccentric disc 3 by the first swing arm engaging piece 62 of first signal swing arm 6, concrete state can be illustrated by Fig. 1.
Please be referring to Fig. 3, technical essential as technical scheme provided by the invention: a side that aforesaid the first eccentric disc is meshed the accent in chamber 32 constitutes non-arc surface, namely constitute the first inclined plane 321, this first inclined plane 321 is essentially an angled straight lines, and the opposite side that the first eccentric disc is meshed the accent in chamber 32 constitutes the second inclined plane 322 of describing as the first inclined plane 321.By the signal of Fig. 3 as can be known, first, second inclined plane corresponds to each other, and makes the accent position in the first eccentric disc engagement chamber 32 form ecto-entad (inwardly being towards the first eccentric disc engagement chamber 32) the bell-mouthed shape of gradually narrow contracting or the shape of title splayed or V font trend.The side of the first swing arm engaging piece 62 towards the first inclined plane 321 of first signal swing arm 6 constituted the 5th inclined plane 621, and the side towards the second inclined plane 322 constitutes the 6th inclined plane 622, and with the first swing arm engaging piece 62 towards (over against) side surface in aforementioned the first eccentric disc engagement chamber 32 constitutes one first milling flat 623, maintain distance at the bottom of the chamber in this first milling flat 623 and the first eccentric disc engagement chamber 32, namely do not contact with the bottom in the first eccentric disc engagement chamber 32.Again, consisting of between the first milling flat 623 and the 5th inclined plane 621 has a First Transition arc surface 624, and consist of between the first milling flat 623 and the 6th inclined plane 622 one second transition circle cambered surface 625 is arranged.When mesh in the first swing arm engaging piece 62 and the first eccentric disc engagement chamber 32, in the process of engagement, the first milling flat 623 plays the effect of depressing clutch pawl 5, first, second transition circle cambered surface 624,625 consists of smooth continuous cambic contact effect, makes the interior pendular motion of first signal swing arm 6 steadily omnidistance.And after described engagement breaks away from (when being eccentric disc 3 rotation), first signal swing arm 6 do not need fully outwards to open (namely reduced by the amplitude of oscillation of inhaling iron swing arm 8 and drive first signal swing arms 6, open not enough part by the eccentric disc 3 in the motion first, second transition circle cambered surface 624,625 continuous light are slipped touch and reposefully first signal swing arm 6 complementarities opened).And when the first swing arm engaging piece 62 and 33 engagements of the second eccentric disc engagement chamber, the action effect of first, second transition circle cambered surface 624,625, the first milling flat 623 is equal to respectively the 4th, the 3rd transition circle cambered surface 725 described later, the 724 and second milling flat 723.
First, second inclined plane 321,322 angle of inclination are equal to each other, and the 5th, the 6th inclined plane 621,622 angle of inclination each other equate, and equate with first, second inclined plane 321,322 angle of inclination.
The strong point of the structure in the structure of above-mentioned the first swing arm engaging piece 62 and the first eccentric disc engagement chamber 32 is: the first swing arm engaging piece 62 is contacted with the engagement of aforementioned eccentric disc 3 show as the contact of double-side oblique-wedge formula, particularly, by the 5th, the first inclined plane 621,321 form the Wedge type contact each other, by the 6th, the second inclined plane 622,322 form the Wedge type contact mutually, guarantee the effect that first signal swing arm 6 locks eccentric disc 3 reliably, though eccentric disc 3 be high-speed state or low speed state all can be in moment namely in the extremely short time or claim accurately to stop to inactive state from rotation status in the minimum angular range, and can remain to next time choosing and combine action.This technique effect has disclosed in fact following two aspects: the one, and it is consistent with the motion pause point of the flower keyboard 4 of main shaft 1 closer to (namely being tending towards) that eccentric disc 3 breaks away from the time point of active drive of the flower keyboard 4 on the main shafts 1, and the uniformity of this tacit agreement inertia kinetic energy that eccentric disc 3 is had is able to remarkable reduction just; The 2nd, mesh inclined plane is that aforesaid the 5th, first inclined plane 621,321 inclined-planes that are engaged with each other and the 6th, second inclined plane 622, the 322 intermeshing inclined-planes angle of action from begin to touch the process of fitting fully can not change substantially, the first back-moving spring 64 be enough to offset the inertia energy of eccentric disc 3 and positive work that its positive lock is done more effective.In addition, the applicant is designed to the first eccentric disc engagement chamber 32 and the pivot of the first signal swing arm 6 line formation orthogonality relation to the middle part that aforementioned double inclined plane contacts to the line of the pivot of aforementioned main shaft 1, and so-called orthogonality relation refers to that the angle between aforementioned two lines is approaching and even equal 90 °.So the advantage of design is: first signal swing arm 6 can be finished the wedge shape locking to eccentric disc 3, the moment of reaction of the eccentric disc 3 that simultaneously this first signal swing arm 6 is born is less, namely need not to resemble prior art in the enhancing locking effect, rely on the spring force that increases the first back-moving spring 64, thereby can reduce energy consumption.
Please be referring to Fig. 4, same technical essential as the present invention program: a side that aforesaid the second eccentric disc is meshed the accent in chamber 33 is designed to the 3rd inclined plane 331, and the opposite side of accent is designed to the 4th inclined plane 332.The side of the second swing arm engaging piece 72 towards the 3rd inclined plane 331 of first signal swing arm 7 is designed to the 7th inclined plane 721, and the side of the second swing arm engaging piece 72 towards the 4th inclined plane 332 is designed to the 8th inclined plane 722, and with the second swing arm engaging piece 72 towards (over against) side surface in the second eccentric disc engagement chamber 33 constitutes the second milling flat 723, this second milling flat 723 is not contact with the bottom in the second eccentric disc engagement chamber 33, and does not contact with the bottom in aforesaid the first eccentric disc engagement chamber 32 equally.Again, consisting of between the second milling flat 723 and the 7th inclined plane 721 has one the 3rd transition circle cambered surface 724, and consist of between the second milling flat 723 and the 8th inclined plane 722 one the 4th transition circle cambered surface 725 is arranged.When mesh fully in the second swing arm engaging piece 72 and the second eccentric disc engagement chamber 33, three, the 4th transition circle cambered surface 724,725 consists of the some contact form with the 3rd, the 4th inclined plane 331,332 respectively, the second milling flat 723 of this moment has reduced the angular motion journey that secondary signal swing arm 7 is outwards opened by eccentric disc 3 than the effect of original single arc structure formation " chamfered edge ".And mesh when the second swing arm engaging piece 72 and the first eccentric disc mesh chamber 32, the action effect of the 3rd, the 4th transition circle cambered surface 724, the 725 and second milling flat 723 be equal to respectively that the front described second, First Transition arc surface 625, the 624 and first milling flat 623.
When the first swing arm engaging piece 62 cooperated with aforementioned the first eccentric disc engagement chamber 32, then the 5th, first inclined plane 621,321 was pasted each other and is touched, and the 6th, second inclined plane 622,322 is pasted simultaneously and touched simultaneously, guarantees inclined-plane equal angles engagement.And the second swing arm engaging piece 72 of secondary signal swing arm 7 contact with the engagement of eccentric disc 3 be 2 the contact forms, particularly, the 4th transition circle cambered surface 725 contacts with the 4th inclined plane 332, the 3rd transition circle cambered surface 724 contacts with the 3rd inclined plane 331, First Transition arc surface 624 contacts with the 4th inclined plane 332, and the second transition circle cambered surface 625 contacts with the 3rd inclined plane 331.This 2 tangent ways of contact have minimum frictional resistance, simultaneously can smaller open traverse and pressure angle, that is to say when eccentric disc 3 rotation, secondary signal swing arm 7 is outwards opened, and machine is that the rotary type multi-arm shedding device overcomes the negative work that the second back-moving spring 74 moments of resistance consume and is significantly reduced.As seen, the present invention program is under the prerequisite at the amplitude of oscillation angle that does not increase secondary signal swing arm 7 or first signal swing arm 6, and the resistance when sliding relative to one another is very little.
From the above, owing to the field of conjugate action is improved, make the separation time point of aforesaid eccentric disc 3 closer to the pause point of main shaft 1.Also understand easily simultaneously, scheme provided by the invention can embody desirable wedge shape locking effect, because, on the one hand in engagement process, make back-moving spring moment institute work effect higher by substantially invariable stressed angle, on the other hand, reasonably force structure makes the most tangential component of the counter-force (reaction force) of 3 pairs of first signal swing arms 6 of eccentric disc act on first signal arm shaft 61, make the normal force of fraction need to do the positive work payment by the first back-moving spring 64, thereby prevented another kind of generation of botching routines.And before the second eccentric disc engagement chamber 33 replaces engagement with first, second swing arm engaging piece 62,72, eccentric disc 3 still remains static, when needs switch to motion state, first signal swing arm 6 or the secondary signal swing arms 7 of former and the first eccentric disc engagement chamber 32 engagements are outwards opened, and the inactive state of eccentric disc 3 was remained to before eccentric disc 3 moves again by follow-up continuing of the signal swing arm on its opposite and 33 engagements of the second eccentric disc engagement chamber.Therefore this process that makes eccentric disc 3 keep resting positions is eccentric stiffener and is in " giving up the idea " position (being that active force is zero or claims the limit), and the external load of heald frame etc. is very little to the reaction force of eccentric stiffener.At this moment, only need first, second back-moving spring 64,74 that less holding torque (significantly energy efficient) is provided, make eccentric disc 3 lose original resting position to prevent shedding motion because of unexpected factors such as vibrations.
Please be referring to Fig. 6, for reducing the inertia impact of movement parts, and guarantee to select the correct execution of combining action, among main shaft 1(Fig. 6 of rotary multi-arm by the signal of arrow longitudinally main shaft 1) motion is usually designed to semiweekly regular intermittent movement (being represented by S among Fig. 6), and exist an absolute pause point to claim again " main shaft pause point " (among Fig. 6 by S1 every 180 °, S2 represents), point at this moment, the speed v of main shaft 1 and acceleration alpha are zero, and corresponding to state shown in Figure 2 (another state is that eccentric disc 3 and dress clutch pawl thereon turn over 180 °).The choosing of every latitude is combined action and is carried out near this main shaft pause point.Again, motion (or static) state that mainly betides eccentric disc 3 of botching routines of rotary multi-arm is correctly switched.And described state switch be in fact by first, second eccentric disc engagement chamber 32,33 with first, second swing arm engaging piece 62,72 alternately mesh and finish.The t of the lateral arrows signal of Fig. 6 represents power shaft.
As shown in Figure 2, when eccentric disc 3 slows down with main shaft 1 and goes to main shaft pause point near main shaft 1, the first swing arm engaging piece 62 enters the 32 beginning faces contact engagement of the first eccentric disc engagement chamber, and press down clutch pawl 5, and at this moment, the relatively retarded motion of main shaft 1, driven eccentric disc 3 is because of relatively precursor of self inertia effect, and under the effect of the first back-moving spring 64, the flange of clutch pawl 5 51 begins to break away from the groove 41 of flower keyboard 4, and the actual time point that breaks away from vital point (deletion) very.The one, need before the main shaft pause point, to finish, can't finish otherwise will do again accelerated motion because of main shaft 1.The 2nd, as far as possible near the main shaft pause point, make eccentric disc 3 be about to enter without the initial inertia of constraint preshoot institute tool less, certainly also just more reliably by first signal swing arm 6 and 64 common lockings of the first back-moving spring.
The applicant sketches operation principle of the present invention, and loom power makes main shaft 1 and the flower keyboard 4 that is contained on the main shaft 1 do variable motion by the effect of cam mechanism.After electromagnet 82 receives signal, produce magnetic, to inhale iron swing arm 8 adhesives, in bottom process, inhale iron swing arm 8 and overcome self spring force, its tactile pawl 83 is acted on by first of first signal swing arm 6 shown in Figure 1 inhale iron swing arm haptic element 63, first signal pendulum 6 overcomes the spring force of the first back-moving spring 64, make the first swing arm engaging piece 62 of first signal swing arm 6 break away from the first eccentric disc engagement chamber 32, at this moment, clutch pawl 5 under the spring-force driven dual of reaction spring 521, the first groove 41 tablings on its flange 51 and the flower keyboard 4, clutch pawl 5 and flower keyboard 4 are coupled as one, under the drive of flower keyboard 4, drive eccentric disc 3 and rotate together, drive swing arm 2 motions by eccentric disc 3, realize that heald lifting arm is the regular swing of hinged pivoted arm 221, finally drive heald frame and realize the upper and lower opening motion.When electromagnet 82 is not received signal, this moment is not because electromagnet 83 dead electricity namely produce magnetic, inhale iron swing arm 8 under the effect of self spring force, make its tactile pawl 83 leave aforesaid first and inhale iron swing arm haptic element 63, and act on secondary signal swing arm 7, therefore first signal swing arm 6 is under the effect of the first back-moving spring 64, end with first swing arm engaging piece 62 of first signal swing arm 6 is tightly pushed down clutch pawl 5, the flange 51 of clutch pawl 5 is separated with the first groove 41 of flower keyboard 4, eccentric disc 3 is in released state with flower keyboard 4, and when flower keyboard 4 rotated, eccentric disc 3 no longer rotated, the heald frame transfixion does not realize mouth-opening action.
In sum, technical scheme provided by the invention has overcome the shortcoming in the prior art, has finished the invention task and has objectively embodied beyond thought technique effect
Claims (10)
1.
Executing agency is combined in a kind of choosing of rotary type multi-arm shedding device, comprises a main shaft (1); One swing arm (2) and an eccentric disc (3), swing arm (2) is arranged on the eccentric disc (3) by swing arm bearing (21), eccentric disc (3) is arranged on the main shaft (1) by eccentric disc bearing (31), in the position, dish edge of this eccentric disc (3) formation one first eccentric disc engagement chamber (32) and one second eccentric disc engagement chamber (33), apart 180 ° at the circumferencial direction of eccentric disc (3) in first, second eccentric disc engagement chamber (32,33) are arranged; One flower keyboard (4), this flower keyboard (4) is positioned at main shaft (1) and upward and with main shaft (1) rotates, in this flower keyboard (4) dish edge formation one first groove (41) and one second groove (42), apart 180 ° at the circumferencial direction of flower keyboard (4) of first, second grooves (41,42) are arranged; Pivot with swing state and to be arranged on a clutch pawl (5) on the eccentric disc (3), one end of this clutch pawl (5) is corresponding with the spacer pin (34) on being arranged on eccentric disc (3), and be extended with one at this end and be used for described the first groove (41) or the flange (51) that matches with described the second groove (42) and formation one reaction spring holder (52) being arranged, be fixed with an end of a reaction spring (521) at this reaction spring holder (52), and the other end of reaction spring (521) is fixed on the eccentric disc (3), the other end of clutch pawl (5) and consist of at the position corresponding to described the first eccentric disc engagement chamber (32) a recessed edge (53) is arranged; One middle part pivot be arranged on the first signal arm shaft (61) and an end end consist of and one first swing arm engaging piece (62) arranged and other end end consists of the one first first signal swing arm (6) of inhaling iron swing arm haptic element (63) is arranged, wherein: the first swing arm engaging piece (62) matches with described the first eccentric disc engagement chamber (32) or meshes chamber (33) with described the second eccentric disc and matches; One middle part pivot be arranged on the secondary signal arm shaft (71) and an end end consist of and one second swing arm engaging piece (72) to be arranged and other end end consists of the one second secondary signal swing arm (7) of inhaling iron swing arm haptic element (73) is arranged, wherein: the second swing arm engaging piece (72) matches with described the first eccentric disc engagement chamber (32) or meshes chamber (33) with described the second eccentric disc and matches; One pivots is arranged on the suction iron arm shaft (81) and suction iron swing arm (8) alternately described the first suction iron swing arm haptic element (63) and second is inhaled iron swing arm haptic element (73) effect under the effect of electromagnet (82), wherein: described first, secondary signal swing arm (6,7) structure is mutually the same, and alternately described eccentric disc (3) is acted on each other, it is characterized in that: a side of the accent in described the first eccentric disc engagement chamber (32) consists of one first inclined plane (321), and the opposite side of described accent and consist of in the position corresponding to the first inclined plane (321) one second inclined plane (322) is arranged; One side of the accent in described the second eccentric disc engagement chamber (33) consists of one the 3rd inclined plane (331), and the opposite side of accent and consist of in the position corresponding to the 3rd inclined plane (331) one the 4th inclined plane (332) is arranged; The side of described the first swing arm engaging piece (62) towards described the first inclined plane (321) consists of one the 5th inclined plane (621), match with described the first inclined plane (321) in the 5th inclined plane (621), and the side formation of the first swing arm engaging piece (62) towards described the second inclined plane (322) has one the 6th inclined plane (622), match with the second inclined plane (322) in the 6th inclined plane (622), and the first swing arm engaging piece (62) constitutes the first milling flat (623) over against the surface of a side in described the first eccentric disc engagement chamber (32), this first milling flat (623) is discontiguous with the bottom in the first eccentric disc engagement chamber (32), wherein: consisting of between the first milling flat (623) and the 5th inclined plane (621) has a First Transition arc surface (624), and consist of between the first milling flat (623) and the 6th inclined plane (622) one second transition circle cambered surface (625) is arranged; The side of described the second swing arm engaging piece (72) towards described the 3rd inclined plane (331) consists of one the 7th inclined plane (721), the 7th inclined plane (721) is discontiguous with described the 3rd inclined plane (331), and the side formation of the second swing arm engaging piece (72) towards described the 4th inclined plane (332) has one the 8th inclined plane (722), the 8th inclined plane (722) is discontiguous with the 4th inclined plane (332), and the second swing arm engaging piece (72) constitutes the second milling flat (723) over against the surface of a side in described the second eccentric disc engagement chamber (33), this second milling flat (723) is discontiguous with the bottom in the second eccentric disc engagement chamber (33), wherein: consisting of between the second milling flat (723) and the 7th inclined plane (721) has one the 3rd transition circle cambered surface (724), the 3rd transition circle cambered surface (724) contacts with the 3rd inclined plane (331), and consist of between the second milling flat (723) and the 8th inclined plane (722) one the 4th transition circle cambered surface (725) is arranged, the 4th transition circle cambered surface (725) contacts with the 4th inclined plane (332).
2.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, it is characterized in that on the outer wall of described main shaft (1) and offer one first flower keyboard locating slot (11) and one second flower keyboard locating slot (12) along the length direction of main shaft (1), this is first years old, the second flower keyboard locating slot (11,12) be separated by 180 ° at the circumferencial direction of main shaft (1) each other, the central authorities of described flower keyboard (4) consist of a main shaft mating holes (43), hole wall at this main shaft mating holes (43) is extended with one first location lug (44) and one second location lug (45), wherein, the position of the first location lug (44) and tenon corresponding with described the first flower keyboard locating slot (11) enters in the first flower keyboard locating slot (11), and the position of the second location lug (45) is corresponding with described the second flower keyboard locating slot (12) and tenon enters in the second flower keyboard locating slot (12).
3.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, it is characterized in that being hinged with a hinged pivoted arm Connection Block (22) in described swing arm (2), be fixed with one for the hinged pivoted arm (221) that is connected with the heald frame of loom at this hinged pivoted arm Connection Block (22), wherein: the shape of described swing arm (2) is Chinese lute shape.
4.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, it is characterized in that consisting of on the dish edge of described eccentric disc (3) reaction spring breach (35) of stepping down is arranged, described reaction spring (521) is corresponding to the step down position of breach (35) of this reaction spring.
5.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, it is characterized in that being installed with a spacer pin (36) at described eccentric disc (3), consist of the gap of soaring between the surface of the top of this spacer pin (36) and eccentric disc (3), described clutch pawl (5) is insinuated in the described gap of soaring towards an end of spacer pin (36), and the nearly middle part of the length direction of clutch pawl (5) swingingly is arranged on the eccentric disc (3) by clutch pawl axle (54).
6.
According to claim 1 or 5, executing agency is combined in the choosing of rotary type multi-arm shedding device, it is characterized in that the global shape of described clutch pawl (5) is banana-shaped substantially.
7.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, an end that it is characterized in that described reaction spring (521) is fixed with one first fixture (5211), this first fixture (5211) is fixed on the described reaction spring holder (52), and the other end of reaction spring (521) is fixed with one second fixture (5212), this second fixture (5212) is fixed on the steady pin (52121), and steady pin (52121) is fixed on the described eccentric disc (3).
8.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, it is characterized in that upper in described first signal swing arm (6) and be connected with one towards an end of described suction iron swing arm (8) being used for the first back-moving spring (64) that first signal swing arm (6) is resetted, and upper and be connected with one towards an end of inhaling iron swing arm (8) equally and be used for the second back-moving spring (74) that secondary signal swing arm (7) is resetted in described secondary signal swing arm (7).
9.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, it is characterized in that the angle of inclination on described the first, the 5th inclined plane (321,621) is equal to each other; The angle of inclination on described the second, the 6th inclined plane (322,622) is equal to each other, and the angle of inclination of first, second inclined plane (321,322) is equal to each other.
10.
Executing agency is combined in the choosing of rotary type multi-arm shedding device according to claim 1, it is characterized in that described the first, the 5th inclined plane (321,621) contacts with each other and the second, the 6th inclined plane (322,622) contact with each other contact form constitutes the double inclined plane contact, is 90 ° with pivot from first signal swing arm (6) to the angle that consists of the line at the middle part that described double inclined plane contacts to the line of the pivot of described main shaft (1) from described the first eccentric disc engagement chamber (32)
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| EP0109999A1 (en) * | 1982-12-03 | 1984-06-13 | GebràDer Sulzer Aktiengesellschaft | Loom dobby |
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| FR2757882A1 (en) * | 1996-12-31 | 1998-07-03 | Staubli Sa Ets | ROTARY RATIERE AND WEAVING MACHINE EQUIPPED WITH SUCH A RATIERE |
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| CN201915198U (en) * | 2010-12-30 | 2011-08-03 | 常熟市常纺纺织机械有限公司 | Shedding mechanism of jacquard |
| CN102400257A (en) * | 2011-11-07 | 2012-04-04 | 常熟纺织机械厂有限公司 | Rotary type multi-arm shedding mechanism |
| CN203034200U (en) * | 2012-12-24 | 2013-07-03 | 常熟纺织机械厂有限公司 | Heald selecting actuating mechanism of rotary dobby shedding device |
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- 2012-12-24 CN CN2012105641474A patent/CN102995212B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0109999A1 (en) * | 1982-12-03 | 1984-06-13 | GebràDer Sulzer Aktiengesellschaft | Loom dobby |
| FR2540524A1 (en) * | 1983-02-07 | 1984-08-10 | Staubli Sa Ets | SYNCHRONIZED ROTARY RATIERE FOR WEAVING |
| FR2757882A1 (en) * | 1996-12-31 | 1998-07-03 | Staubli Sa Ets | ROTARY RATIERE AND WEAVING MACHINE EQUIPPED WITH SUCH A RATIERE |
| CN1186880A (en) * | 1996-12-31 | 1998-07-08 | 斯托布利－法韦日公司 | Rotary dobby and weaving loom provided with such dobby |
| CN1057352C (en) * | 1996-12-31 | 2000-10-11 | 斯托布利－法韦日公司 | Rotary dobby and weaving leom provided with such dobby |
| CN201915198U (en) * | 2010-12-30 | 2011-08-03 | 常熟市常纺纺织机械有限公司 | Shedding mechanism of jacquard |
| CN102400257A (en) * | 2011-11-07 | 2012-04-04 | 常熟纺织机械厂有限公司 | Rotary type multi-arm shedding mechanism |
| CN203034200U (en) * | 2012-12-24 | 2013-07-03 | 常熟纺织机械厂有限公司 | Heald selecting actuating mechanism of rotary dobby shedding device |
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Address after: No. 381 Tonggang Road, Meili Town, Changshu City, Suzhou City, Jiangsu Province, China Patentee after: CHANGSHU TEXTILE MACHINERY WORKS Co.,Ltd. Country or region after: China Address before: No. 188 Tonggang Road, Meili Town, Changshu City, Suzhou City, Jiangsu Province, 215511 Patentee before: CHANGSHU TEXTILE MACHINERY WORKS Co.,Ltd. Country or region before: China |