CN102995212B - 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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- CN102995212B CN102995212B CN2012105641474A CN201210564147A CN102995212B CN 102995212 B CN102995212 B CN 102995212B CN 2012105641474 A CN2012105641474 A CN 2012105641474A CN 201210564147 A CN201210564147 A CN 201210564147A CN 102995212 B CN102995212 B CN 102995212B
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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 drives the heald frame of loom to make one of loom opening features of upper and lower shedding motion with this, 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 in view of the rotary type multi-arm shedding device, is again the pith of shedding device of weaving machine, 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 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 it carries out the correctness that selects comprehensive action can for example can make fabric produce flaw on the mass formation impact of fabric when occurring selecting comprehensive botching routines, and affects the lifting of fabric class.
tECHNICAL INFORMATION SOURCES about the rotary type multi-arm shedding device can be seen in disclosed Chinese patent literature, typically 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 provided is to change the pallet of pivoted arm (patent claims pivoting arm) into structure with inside and outside two bearing-surfaces, use the angular movement amplitude that reduces pivoted arm (seeing shown in Fig. 1 to Fig. 5 of this patent and the description of 4 pages of the 3rd row of Instructions Page 3 final stage to the), first mating surface of eccentric disc (patent pan of a steelyard sheet) is changed into to second mating surface being greater than 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 of specification the 2nd row 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.
" rotary type multi-arm shedding mechanism " that the described shortcoming that above-mentioned CN1057352C exists is recommended by invention patent mandate notification number CN102400257B overcomes, specifically can be with reference to specification the 007th to 009 hurdle and the 0011st hurdle of this CN102400787B.Should say objective its specification the 0021st described technique effect in 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.
through the applicant, analyze, 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 have huge inertia kinetic energy in eccentric disc static to moment from the High Rotation Speed state (by signal swing arm locking) this process of state, 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, at the spring force of back-moving spring under certain situation, its effect (effect refers to the action effect of signal swing arm to 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 eccentric disc, that is to say, its effect depends on the stressed angle of engagement (time point or title time point) and the eccentric disc field of conjugate action.And aforementioned patent exists and puts too early shortcoming engagement time, inertia kinetic energy when engagement time, point 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 saving the energy.On the other hand, the process of the swing arm engaging piece of signal swing arm and the eccentric disc field of conjugate action i.e. engagement within the period that starts to have touched 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, due to the swing arm engaging piece of signal swing arm and the structure of the eccentric disc field of conjugate action on eccentric disc, all lose rationally, holding torque under static state is larger to eccentric disc to cause the signal swing arm, thereby has also increased the energy consumption of rotary type multi-arm shedding device.
want the angle of its kind must first sharpen his tools from work and consider, certainly, use if will guarantee the fabrics cloth cover quality and promote the fabric class, essential signal swing arm and the eccentric disc combination miss drawback of combining executing agency as choosing of eliminating.Yet, because the application of rotary type multi-arm shedding device has had longer 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
task of the invention is to provide an effect to help with the arm eccentric disc engaging surface of the engaging arm portion of the signal reflected, between the eccentric disc, and in order to protect the signal arm secure locking or release of the eccentric disk is conducive to the eccentric shaft of the disc from the time point when the active keyboard driver tends to flower and the flower keyboard spindle movement consistent pause point, in order to reduce the inertia of the kinetic energy of the eccentric disk, and beneficial to both the arm and the eccentric disk engaging portion engaging eccentric disk surface to protect the signal arm is fully engaged from the beginning to the process of contacting the role of angular remain basically unchanged, but in order to make the return spring will easily offset the eccentric disk momentum and inertia eccentric disk reliable locking positive work done more efficiently, and reflect the consolidated election actuator ideal energy saving effect of rotary dobby shedding device.
task of the present invention completes 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 eccentric disc by the swing arm bearing, eccentric disc is arranged on main shaft by the eccentric disc bearing, form in the position, dish edge of this eccentric disc one first eccentric disc engagement chamber and one second eccentric disc engagement chamber are arranged, apart 180 ° at the circumferencial direction of eccentric disc, first, second eccentric disc engagement chamber, one flower keyboard, this flower keyboard is positioned on main shaft and with main shaft and rotates, and on this flower keyboard dish edge, forms one first groove and one second groove, apart 180 ° at the circumferencial direction of flower keyboard of first, second grooves are arranged, be arranged on the clutch pawl on eccentric disc with the swing state pivotable, one end of this clutch pawl is corresponding with the spacer pin on being arranged on eccentric disc, and be extended with one for described the first groove or the flange matched with described the second groove and formation, one reaction spring holder being arranged at this end, be fixed with an end of a reaction spring on this reaction spring holder, and the other end of reaction spring is fixed on eccentric disc, the other end of clutch pawl and form a recessed edge is arranged at the position corresponding to described the first eccentric disc engagement chamber, one middle part pivotable be arranged on the first signal arm shaft and an end end form and one first swing arm engaging piece to be arranged and other end end forms the one first first signal swing arm of inhaling iron swing arm haptic element is arranged, wherein: the first swing arm engaging piece matches or meshes chamber with described the second eccentric disc with described the first eccentric disc engagement chamber and matches, one middle part pivot be arranged on the secondary signal arm shaft and an end end form and one second swing arm engaging piece to be arranged and other end end forms the one second secondary signal swing arm of inhaling iron swing arm haptic element is arranged, wherein: the second swing arm engaging piece matches or meshes chamber with described the second eccentric disc with described the first eccentric disc engagement chamber and matches, one pivotable is arranged on inhales on the 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 forms one first inclined plane, and the opposite side of described accent and form 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 forms one the 3rd inclined plane, and the opposite side of accent and form 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 forms 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 is configured to 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: between the first milling flat and the 5th inclined plane, form a First Transition arc surface is arranged, and form 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 forms 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 is configured to 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: between the second milling flat and the 7th inclined plane, form one the 3rd transition circle cambered surface is arranged, the 3rd transition circle cambered surface contacts with the 3rd inclined plane, and form 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, offer one first flower keyboard locating slot and one second flower keyboard locating slot on the outer wall of described main shaft and along the length direction of main shaft, 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 form a main shaft mating holes, be extended with one first location lug and one second location lug on the hole wall of this main shaft mating holes, 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 a hinged pivoted arm for being connected with the heald frame of loom on 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, form on the dish edge of described eccentric disc the reaction spring breach of stepping down is arranged, 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 on described eccentric disc, form 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 eccentric disc by clutch pawl axle.
also have a 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 described reaction spring holder, and the other end of reaction spring is fixed with one second fixture, this second fixture is fixed on steady pin, and steady pin is fixed on described eccentric disc.
in of the present invention and then specific embodiment, be connected with first back-moving spring for the first signal swing arm is resetted in described first signal swing arm and towards an end of described suction iron swing arm, and in described secondary signal swing arm and equally towards an end of inhaling the iron swing arm, be connected with second back-moving spring for the secondary signal swing arm is resetted.
of the present invention again more and in specific embodiment, angle of inclination described first, the 5th inclined plane is equal to each other; Angle of inclination described 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 is configured to double inclined plane contact, and the angle formed the line at the middle part contacted to described double inclined plane with pivot from the first signal swing arm to the line of the pivot of described main shaft from described the first eccentric disc engagement chamber is 90 °.
technical scheme provided by the invention is because the second swing arm engaging piece of the first swing arm engaging piece to the first signal swing arm and secondary signal swing arm has been done improvement, 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 and is the double-side oblique-wedge form with the engagement of eccentric disc, thereby there is 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 remain static and last 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 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 due at mesh inclined plane the angle of action from the process that starts to touch laminating fully substantially constant, thereby make the first back-moving spring be enough to offset the inertia energy of eccentric disc and by its positive lock, the positive work that the first back-moving spring is done is more effective, having avoided prior art to rely on the active force that increases the first back-moving spring offsets the inertia energy of eccentric disc and is minimized energy consumption.
The accompanying drawing explanation
fig. 1 is the embodiments of the invention structure chart.
the front view that Fig. 2 is 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 to second of secondary signal swing arm the schematic diagram that iron swing arm haptic element is done the used time for inhaling the iron swing arm.
the curve movement schematic diagram that Fig. 6 is 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 the description to embodiment is not all the restriction to the present invention program, any according to the present invention 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 swing arm 2, eccentric disc 3, flower keyboard 4, clutch pawl 5, first, second signal swing arm 6,7 equated with the quantity of the heald frame of loom and inhale iron swing arm 8 on this main shaft 1, following description is for a heald frame.Form one first flower keyboard locating slot 11 and one second flower keyboard locating slot 12 are arranged on the outer wall of main shaft 1 and along the length direction of main shaft 1, and apart 180 ° at the circumferencial direction of main shaft 1 of first, second flower keyboard locating slots 11,12, both are corresponding.
global shape is arranged on 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, shown in Fig. 1 and Fig. 2, be hinged with a hinged pivoted arm Connection Block 22 by a hinging pin shaft 222 in swing arm 2, on this hinged pivoted arm Connection Block 22 with the welding, the riveted joint or with other, equivalent form is fixed with a hinged pivoted arm 221, hinged pivoted arm 221 is connected for the heald frame (not shown) with 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 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.Form on the dish edge of this eccentric disc 3 one first eccentric disc engagement chamber 32 and one second eccentric disc engagement chamber 33 are arranged, on the dish edge of first, second eccentric disc engagement chamber 32,33 circumferencial directions at eccentric disc 3, each interval is 180 °, and first, second eccentric disc engagement chamber 32,33 keeps aspectant position relationship each other.Be fixed with a spacer pin 34 and a spacer pin 36 on eccentric disc 3 and towards the surface of a side of the following clutch pawl 5 that also will describe, 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, by this disappearance part, be configured to the reaction spring breach 35 of stepping down.
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 one for being nested with the main shaft mating holes 43 on aforesaid main shaft 1, and be extended with one first location lug 44 and one second location lug 45 on the hole wall of this main shaft mating holes 43, apart 180 ° at the circumferencial direction of main shaft mating holes 43 of first, second location lugs 44,45.As shown in Figure 2, the first location lug 44 matches with the first flower keyboard locating slot 11 on aforesaid main shaft 1, and the second location lug 45 matches with the second flower keyboard locating slot 12 on 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, form one first groove 41 and one second groove 42 are arranged on the flower keyboard dish edge of flower keyboard 4, apart 180 ° of this first, second groove 41,42 position on flower keyboard dish edge, 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 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 form a flange 51 and a reaction spring holder 52 are arranged at this end, 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 flower keyboard 4, when flange 51 matches with the first groove 41 or with the second groove 42, by flower keyboard 4, drives eccentric disc 3 motions.Be fixed with an end of reaction spring 521 on 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 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, this second fixture 5212 is fixed on eccentric disc 3 by steady pin 52121.As shown in Figure 1, the other end of clutch pawl 5 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 by this spacer pin 36, stop clutch pawls 5 likely to occur upwarp situation.On clutch pawl 5 and forming a recessed edge 53 is being arranged corresponding to aforesaid the first eccentric disc engagement 32 position, chamber, this recessed edge 53 is slightly to the first eccentric disc field of conjugate action 32 depressions, in order to alternately do coordinating 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 be fixed on not shown frame rotationally, form in an end end of this first signal swing arm 6 first a swing arm engaging piece 62 that be meshed with aforesaid the first eccentric disc engagement chamber 32 or that be meshed with the second eccentric disc engagement chamber 33 is arranged, and the end of the other end of first signal swing arm 6 forms and to have one first to inhale iron swing arm haptic element 63, and be connected with first back-moving spring 64 for 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 are identical with first signal swing arm 6 is arranged on secondary signal arm shaft 71 rotationally, one end end forms has one with first, second eccentric disc engagement chamber 32,33, to replace the second swing arm engaging piece 72 meshed, and the end of the other end of secondary signal swing arm 7 forms and to have one second to inhale iron swing arm haptic element 73, and be connected with second back-moving spring 74 for secondary signal swing arm 7 is resetted at this other end.
suction iron swing arm 8 pivotables that belong to Electromagnetic Control mechanism are arranged on inhales on iron arm shaft 81, and alternately aforesaid first, second is inhaled to 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 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, by the first swing arm engaging piece 62 of first signal swing arm 6, with the first eccentric disc engaging piece 32 on eccentric disc 3, be meshed, 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 of the accent in aforesaid the first eccentric disc engagement chamber 32 is configured to non-arc surface, be configured to the first inclined plane 321, this first inclined plane 321 is essentially an angled straight lines, the opposite side of the accent in the first eccentric disc engagement chamber 32 is configured to the second inclined plane 322 of describing as the first inclined plane 321.Signal from Fig. 3, 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 narrow contracting gradually 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 is configured to the 5th inclined plane 621, and the side towards the second inclined plane 322 is configured to the 6th inclined plane 622, and by the first swing arm engaging piece 62 towards (over against) side surface in aforementioned the first eccentric disc engagement chamber 32 is configured to one first milling flat 623, maintain distance at the bottom of this first milling flat 623 and the first eccentric disc engagement 32 chamber, chamber, do not contact with the bottom in the first eccentric disc engagement chamber 32.Again, between the first milling flat 623 and the 5th inclined plane 621, form a First Transition arc surface 624 is arranged, and form one second transition circle cambered surface 625 is arranged between the first milling flat 623 and the 6th inclined plane 622.When the first swing arm engaging piece 62 and the first eccentric disc engagement chamber 32 is meshed, 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 forms 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 (while being eccentric disc 3 rotation), first signal swing arm 6 does not need fully outwards to open (reduced by the amplitude of oscillation of inhaling iron swing arm 8 and drive first signal swing arms 6, opened the eccentric disc 3 of not enough part in motion the continuous light of first, second transition circle cambered surface 624,625 is slipped and touches and reposefully first signal swing arm 6 complementarities are 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 725,724 described later and the second milling flat 723.
the angle of inclination on first, second inclined plane 321,322 is equal to each other, and the angle of inclination each other on the 5th, the 6th inclined plane 621,622 equates, and equates with the angle of inclination on first, second inclined plane 321,322.
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: can make the first swing arm engaging piece 62 contact with the engagement of aforementioned eccentric disc 3 and 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 in the extremely short time or claim accurately to stop to inactive state from rotation status in minimum angular range, and can remain to choosing next time and combine action.This technique effect has disclosed in fact following two aspects: the one, and the time point of the active drive of the flower keyboard 4 on eccentric disc 3 disengaging main shafts 1 is consistent with the motion pause point of the flower keyboard 4 of main shaft 1 closer to (being tending towards), and the inertia kinetic energy that the uniformity of this tacit agreement has eccentric disc 3 just is able to remarkable reduction; The 2nd, mesh inclined plane is that the inclined-plane and the 6th that is engaged with each other, aforesaid the 5th, first inclined plane 621,321,622,322 intermeshing inclined-planes, the second inclined plane angle of action from the process that starts to touch laminating fully can not change substantially, and it is more effective that the first back-moving spring 64 is enough to the positive work that can offset the inertia energy of eccentric disc 3 and its positive lock is done.In addition, the applicant is designed to the first eccentric disc engagement chamber 32 the line formation orthogonality relation at the middle part that contacts to aforementioned double inclined plane with the pivot of first signal swing arm 6 to the line of the pivot of aforementioned main shaft 1, 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 complete the wedge shape locking to eccentric disc 3, the moment of reaction of the eccentric disc 3 that this first signal swing arm 6 is born simultaneously is less, relying on without resembling prior art the spring force that increases the first back-moving spring 64 when strengthening locking effect, thereby can reduce energy consumption.
please be referring to Fig. 4, the same technical essential as the present invention program a: side of the accent in aforesaid the second eccentric disc engagement 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 by the second swing arm engaging piece 72, the side towards the 4th inclined plane 332 is designed to the 8th inclined plane 722, and by the second swing arm engaging piece 72 towards (over against) side surface in the second eccentric disc engagement chamber 33 is configured to the second milling flat 723, this second milling flat 723 is with the bottom in the second eccentric disc engagement chamber 33, not contact, and with the bottom in aforesaid the first eccentric disc engagement chamber 32, does not contact equally.Again, between the second milling flat 723 and the 7th inclined plane 721, form one the 3rd transition circle cambered surface 724 is arranged, and form one the 4th transition circle cambered surface 725 is arranged between the second milling flat 723 and the 8th inclined plane 722.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 forms the some contact form with the 3rd, the 4th inclined plane 331,332 respectively, the second milling flat 723 now forms the effect of " chamfered edge " than original single arc structure, reduced the angular motion journey that secondary signal swing arm 7 is outwards opened by eccentric disc 3.And meshed when the second swing arm engaging piece 72 and the first eccentric disc mesh chamber 32, that the action effect of the 3rd, the 4th transition circle cambered surface 724,725 and the second milling flat 723 is equal to respectively is already described second, First Transition arc surface 625,624 and the first milling flat 623.
when the first swing arm engaging piece 62 coordinates with aforementioned the first eccentric disc engagement chamber 32, the 5th, first inclined plane 621,321 is 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 with the engagement of eccentric disc 3, contact 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, can smaller open traverse and pressure angle simultaneously, 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 second back-moving spring 74 moments of resistance consume and is significantly reduced.Visible, 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 while sliding relative to one another is very little.
from the above, due to the field of conjugate action is improved, make the pause point of the separation time point of aforesaid eccentric disc 3 closer to main shaft 1.Also easily understand simultaneously, scheme provided by the invention can embody desirable wedge shape locking effect, because, on the one hand in engagement process, by substantially invariable stressed angle, make back-moving spring moment institute work effect higher, 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 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 are switched to motion state, former first signal swing arm 6 or secondary signal swing arms 7 with 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 position is eccentric stiffener 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.Now, only need first, second back-moving spring 64,74 that less holding torque (significantly energy efficient) is provided, to prevent shedding motion, because of unexpected factors such as vibrations, make eccentric disc 3 lose original resting position.
please be referring to Fig. 6, for reducing the inertia impact of movement parts, and guarantee to select the correct execution of combining action, in 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 meaned by S in Fig. 6), and exist an absolute pause point to claim again " main shaft pause point " (being meaned by S1, S2 in Fig. 6) every 180 °, point at this moment, the speed v of main shaft 1 and acceleration alpha are zero, and corresponding to state shown in Fig. 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 switching is in fact alternately having meshed by first, second eccentric disc engagement chamber 32,33 and first, second swing arm engaging piece 62,72.The t of the lateral arrows signal of Fig. 6 means power shaft.
as shown in Figure 2, slow down with main shaft 1 when eccentric disc 3 and go to the main shaft pause point near main shaft 1, the first swing arm engaging piece 62 enters the first eccentric disc engagement chamber 32 beginning face contact engagements, and press down clutch pawl 5, and now, the retarded motion of main shaft 1 relatively, driven eccentric disc 3 is because of self inertia effect precursor relatively, and, under the effect of the first back-moving spring 64, the flange of clutch pawl 5 51 starts to break away from the groove 41 of flower keyboard 4, and the actual time point broken away from vital point (deletion) very.The one, need before the main shaft pause point, complete, otherwise will do again accelerated motion because of main shaft 1, can't complete.The 2nd, approach as far as possible 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, by the effect of cam mechanism, makes main shaft 1 and the flower keyboard 4 be contained on main shaft 1 do variable motion.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, make its tactile pawl 83 act on the first suction iron swing arm haptic element 63 of first signal swing arm 6 as shown in Figure 1, 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, now, clutch pawl 5 is under the spring-force driven dual of reaction spring 521, the first groove 41 tablings on its flange 51 and flower keyboard 4, clutch pawl 5 and flower keyboard 4 are coupled as one, under the drive of flower keyboard 4, driving eccentric disc 3 rotates together, drive swing arm 2 motions by eccentric disc 3, realize that heald lifting arm is the regular swing of hinged pivoted arm 221, the final heald frame that drives is realized the upper and lower opening motion.When electromagnet 82 is not received signal, now because electromagnet 83 dead electricity do not 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, an 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 and flower keyboard 4 are in released state, when flower keyboard 4 rotates, eccentric disc 3 no longer rotates, the heald frame transfixion, do not realize mouth-opening action.
in sum, technical scheme provided by the invention has overcome the shortcoming in the prior art, has completed the invention task and has objectively embodied beyond thought technique effect.
Claims (9)
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 eccentric disc (3) by swing arm bearing (21), eccentric disc (3) is arranged on main shaft (1) by eccentric disc bearing (31), form in the position, dish edge of this eccentric disc (3) 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), first, second eccentric disc engagement chamber (32,33) are arranged, one flower keyboard (4), this flower keyboard (4) is positioned at main shaft (1) above and rotates with main shaft (1), form 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 on this flower keyboard (4) dish edge, be arranged on the clutch pawl (5) on eccentric disc (3) with the swing state pivotable, 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 for described the first groove (41) or the flange (51) matched with described the second groove (42) and formation, one reaction spring holder (52) being arranged at this end, be fixed with an end of a reaction spring (521) on this reaction spring holder (52), and the other end of reaction spring (521) is fixed on eccentric disc (3), the other end of clutch pawl (5) and form a recessed edge (53) is arranged at the position corresponding to described the first eccentric disc engagement chamber (32), one middle part pivotable be arranged on first signal arm shaft (61) and an end end form and one first swing arm engaging piece (62) to be arranged and other end end forms 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 secondary signal arm shaft (71) and an end end form and one second swing arm engaging piece (72) to be arranged and other end end forms 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 pivotable is arranged on inhales on 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) forms one first inclined plane (321), and the opposite side of the accent in the first eccentric disc engagement chamber (32) and form 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) forms one the 3rd inclined plane (331), and the opposite side of the accent in the second eccentric disc engagement chamber (33) and form 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) forms 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) is configured to 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: between the first milling flat (623) and the 5th inclined plane (621), form a First Transition arc surface (624) is arranged, and form 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) forms 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) is configured to 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: between the second milling flat (723) and the 7th inclined plane (721), form one the 3rd transition circle cambered surface (724) is arranged, the 3rd transition circle cambered surface (724) contacts with the 3rd inclined plane (331), and form 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) form a main shaft mating holes (43), be extended with one first location lug (44) and one second location lug (45) on the hole wall of this main shaft mating holes (43), 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 a hinged pivoted arm (221) for being connected with the heald frame of loom on this hinged pivoted arm Connection Block (22).
4.
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 dish edge of described eccentric disc (3) forming the 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) on described eccentric disc (3), form 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 eccentric disc (3) by clutch pawl axle (54).
6.
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 described reaction spring holder (52), and the other end of reaction spring (521) is fixed with one second fixture (5212), it is upper that this second fixture (5212) is fixed on steady pin (52121), and steady pin (52121) is fixed on described eccentric disc (3).
7.
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 first back-moving spring (64) for first signal swing arm (6) is resetted towards an end of described suction iron swing arm (8), and upper and be connected with second back-moving spring (74) for secondary signal swing arm (7) is resetted towards an end of inhaling iron swing arm (8) equally in described secondary signal swing arm (7).
8.
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.
9.
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) contacts with each other contact form is configured to the double inclined plane contact, the angle formed the line at the middle part contacted to described double inclined plane with pivot from first signal swing arm (6) to the line of the pivot of described main shaft (1) from described the first eccentric disc engagement chamber (32) is 90 °.
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| CN2012105641474A CN102995212B (en) | 2012-12-24 | 2012-12-24 | Selecting and comprehensively actuating mechanism for rotary type dobby opening device |
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| CN2012105641474A CN102995212B (en) | 2012-12-24 | 2012-12-24 | Selecting and comprehensively actuating mechanism for rotary type dobby opening device |
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| 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 |
| 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
- 2012-12-24 CN CN2012105641474A patent/CN102995212B/en active Active
Patent Citations (8)
| 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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| CN102995212A (en) | 2013-03-27 |
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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 |