A kind of tabular connecting rod applied in jacquard heald mechanism
Technical field
The invention belongs to air-jet loom field is and in particular to a kind of tabular connecting rod applied in jacquard heald mechanism.
Background technology
Jacquard is made up of shedding mechanism, shedding mechanism and decorative pattern controlling organization.Jacquard on air-jet loom for the adapted
Generally use double action open type mechanism, air-jet loom rotating speed more and more higher, reach 750-1000 rev/min, jacquard power train
The angular velocity of the main shaft of system is equal to the half of loom main shaft angular velocity.Loom main shaft rotates secondary, jacquard weave shedding mechanism motion one
Secondary circulation, the jacquard joining air-jet loom must adapt to 375-500 rev/min.
Shedding mechanism carries warp thread through heald and forms shed open, and heald is significantly upper and lower with warp thread, and warp thread is not only followed out
Mouth arm and connecting rod move up and down, and rock in front and back in harness eye.This is because the shedding mechanism of jacquard is working condition extreme difference
Mechanical part, also fault rate highest part, connecting rod is workpiece and the stressed member of jacquard.The connecting rod currently using
Structure be round steel, up to 0.5 meter, two connecting rods drive with one page shedding plate length of connecting rod from the left and right sides, and eight connecting rods hold
It is subject to all weight griffed and warp tension, two connection rod set contracts drive about 2000 warp thread, and the warp thread bearing 1000n carries
Lotus.
Between the connecting rod of jacquard is arranged on opening arm and griffes, opening arm drives warp thread to move up and down by connecting rod.With
Structure toward low speed jacquard connecting rod is for the purpose of meeting and lifting heald, and component is bound up and realizes motion, does not examine
Consider deformation and the vibration of parts.Carry on jacquard high, elongated connecting rod because of stress bending and distorts, shedding plate will hang down
The straight another two direction in its direction of motion produces vibration, and therefore rocking of shedding plate causes warp thread to rock in front and back in harness eye.
Warp on loom broken end occurs mainly in heald adjacent domain, and connecting rod gives warp thread the bending transmission of itself, plus
Acute friction in harness eye for the warp thread, connecting rod section is too small to cause the not cleer and peaceful stop over of opening many.For the design of connecting rod, increasing
Plus it is necessary to improve the dynamic property of connecting rod while its rigidity and its quality of mitigation, improve vibration resistance.
Content of the invention
In order to meet the demand, the present invention provides a kind of tabular connecting rod applied in jacquard heald mechanism, tradition
The connecting rod of circular shaft type structure makes plate profile structure into it is therefore intended that resisting the deformation of connecting rod, and the height of shedding mechanism can be greatly improved
Fast bearing capacity, to adapt to big load jacquard.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of tabular connecting rod applied in jacquard heald mechanism, including big end, small end of connecting rod and connecting rod shank, institute
State and swing arm installing hole offered on big end, described small end of connecting rod offers shedding plate installing hole, described connecting rod shank by
Web and muscle composition, described swing arm installing hole is 320-460mm with the centre-to-centre spacing of described shedding plate installing hole, described connecting rod shank
Thickness be 28-36mm.
Preferably, described connecting rod shank can be triangle, in described swing arm installing hole and described shedding plate installing hole
The perpendicular bisector of centrage on be provided with a circular platform, the centrage of described circular platform is away from described swing arm installing hole
With the centrage 80-110mm of described shedding plate installing hole, described big end and described small end of connecting rod all rounded, described company
Pass through three first muscle between bar major part, described small end of connecting rod and described circular platform to connect, set between three described first muscle
It is equipped with the first web, pass through the 4th described first muscle of setting in the middle part of described first web and separated, the width of described first muscle
Spend for 8-12mm.
Further, when described connecting rod shank is triangle, described big end is by two the first swing arm erecting beds
Rank forms, and two described first swing arm installation steps offer a coaxial described swing arm installing hole respectively;Triangle
The described small end of connecting rod of described tabular connecting rod is made up of a first shedding plate installation step, described first shedding plate installation step
On offer a described shedding plate installing hole.
Further, when described connecting rod shank is triangle, described big end is by two the first swing arm erecting beds
Rank forms, and two described first swing arm installation steps offer a coaxial described swing arm installing hole respectively;Triangle
The described small end of connecting rod of described tabular connecting rod is made up of two the first shedding plate installation steps, and two described first shedding plates are installed
One coaxial described shedding plate installing hole is offered respectively on step.
Preferably, described connecting rod shank can also be flat pattern, and described big end and described small end of connecting rod are all in circle
Shape, is connected by two second muscle between described swing arm installing hole and described shedding plate installing hole, between two described second muscle
It is provided with the second web, pass through the 3rd described second muscle of setting in the middle part of described second web and separated, described connecting rod shank
Width be 90-110mm, the width of described second muscle is 8-12mm.
Further, when described connecting rod shank is flat pattern, described big end is by two the first swing arm erecting beds
Rank forms, and two described first swing arm installation steps offer a coaxial described swing arm installing hole respectively;Pancake
The described small end of connecting rod of described tabular connecting rod is made up of a second shedding plate installation step, described second shedding plate installation step
On offer a described shedding plate installing hole.
Further, when described connecting rod shank is flat pattern, described big end is by two the first swing arm erecting beds
Rank forms, and two described first swing arm installation steps offer a coaxial described swing arm installing hole respectively;Pancake
The described small end of connecting rod of described tabular connecting rod is made up of two the second shedding plate installation steps, and two described second shedding plates are installed
One coaxial described shedding plate installing hole is offered respectively on step.
The invention has the beneficial effects as follows:
The present invention passes through to change the structural shape of connecting rod, of the prior art upper hand in hand, connecting rod and lower combination hand in hand
Formula connecting rod makes the connecting rod of platy structure into, and three part combination are become a part, and connecting rod becomes square from original circular cross-section
After tee section, area of section is significantly increased, and improves intensity and the bending resistance of shedding mechanism component, prevents the excessive change of connecting rod
Shape, is greatly improved the high speed bearing capacity of shedding mechanism, to adapt to big load jacquard.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail.This
Bright specific embodiment is shown in detail in by following examples and its accompanying drawing.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings:
The connecting rod of the prior art that Fig. 1 uses for jacquard and the structural representation driving shedding plate;
The upper front view hand in hand of the prior art that Fig. 2 uses for jacquard;
The upper side view hand in hand of the prior art that Fig. 3 uses for jacquard;
Fig. 4 is the front view of the separate unit rank triangle tabular connecting rod of the present invention;
Fig. 5 is the side view of the separate unit rank triangle tabular connecting rod of the present invention;
Fig. 6 is the front view of the double step triangle tabular connecting rod of the present invention;
Fig. 7 is the side view of the double step triangle tabular connecting rod of the present invention;
Fig. 8 is the front view of the separate unit rank pancake tabular connecting rod of the present invention;
Fig. 9 is the side view of the separate unit rank pancake tabular connecting rod of the present invention;
Figure 10 is the front view of the double step pancake tabular connecting rod of the present invention;
Figure 11 is the side view of the double step pancake tabular connecting rod of the present invention.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, to describe the present invention in detail.
Loom speed more and more higher, the load more and more higher of jacquard, the factory of electronic jacquard machine newly there is, big absolutely portion
Point be small-sized jacquard, gating from tens to hundreds of pin, present gating 5120 pin, 8192 pins and 10240 pins, stress big tens
Times, loom speed brings up to 750-1000 rev/min from 100-200 rev/min, and motor system is impacted, and parts cannot be hidden
High vibration.Shedding system is jacquard system the weakest, can alleviate connecting rod by the structure changing circular shaft shape connecting rod
Bending and vibration, reduce shedding plate amplitude as much as possible, prevent connecting rod and the excessive deformation griffed.
Fig. 1 is the structure chart of shedding mechanism some mechanical part, represents that motion is delivered to shedding plate from opening arm axle.Referring to
Shown in Fig. 1, opening arm axle has upper and lower two, and the motion of opening arm axle is rendered as swinging, and swing arm seat is arranged on opening arm axle through key
On, every opening arm axle installs horizontal swinging arm seat, and swing arm in front and back is respectively locked on swing arm seat with ten bolts, every opening arm axle
Drive four swing arms, two pieces front swing arm and two pieces rear-swing arm.Every swing arm connects on one hand in hand, is above arranged on the circle of swing arm hand in hand
In arc groove, the large and small head of connecting rod connects respectively leads along by hand hand in hand and down, and two connecting rods drive one block of shedding plate hand in hand through lower.Two
Root opening arm axle drives four blocks of shedding plates.Connecting rod is exactly the round steel of 20 millimeters of a φ, and round steel double-ended vehicle has m20 screw thread, is used in
Connect and lead along by hand up and down.
Bumpy motion, vibration are big in use for the shedding mechanism of jacquard, and damage parts are frequent, in 5100 pin jacquards
Even cause the fracture of crank shaft during upper use.This shedding mechanism is only suitable for low speed loom, present air-jet loom turn up
750-1000 rev/min it is necessary to improving and developing the shedding mechanism being suitable for high speed loom.
Fig. 2, Fig. 3 are the upper structure chart hand in hand using on present jacquard, and swing arm is assemblied in hand in hand in the middle of two-arm.Referring to
Shown in Fig. 1, connecting rod by upper hand in hand, connecting rod and combining hand in hand down, connecting rod is stressed member, adopts now circular configuration, even
Up to 0.5 meter, two connecting rods drive with one page shedding plate, when used in high load jacquard, elongated company pole length from the left and right sides
Bar because of stress bending and distorts, and shedding plate therefore motion delay simultaneously causes vibration.
The present invention makes plate profile structure into round structure connecting rod, and by upper hand in hand, connecting rod and become down a portion hand in hand
Part, circular cross-section becomes square-section, and area of section is significantly increased, and improves intensity and the bending resistance of connecting rod, permissible
The high speed bearing capacity of shedding mechanism is greatly improved.
Embodiment 1
Referring to shown in Fig. 4, Fig. 5, a kind of tabular connecting rod applied in jacquard heald mechanism, can be closed using steel-casting or aluminum
Golden die casting, it includes big end 1, small end of connecting rod 2 and connecting rod shank 3, and described connecting rod shank 3 is triangle, described company
Bar major part 1 and described small end of connecting rod 2 are all rounded, and described big end 1 is made up of two the first swing arm installation steps 11, two
One coaxial described swing arm installing hole 5 is offered on described first swing arm installation step 11, described small end of connecting rod 2 is by one respectively
Individual first shedding plate installation step 21 forms, and described first shedding plate installation step 21 offers a described shedding plate and installs
Hole 6, described connecting rod shank 3 is made up of the first web 32 and the first muscle 31, installs in described swing arm installing hole 5 and described shedding plate
One circular platform 4, described big end 1, described small end of connecting rod 2 and institute are provided with the perpendicular bisector of the centrage in hole 6
State and connected by three described first muscle 31 between circular platform 4, between three described first muscle 31, be provided with described first abdomen
Plate 32, described first web 32 middle part is separated by arranging the 4th described first muscle 31.
The thickness of described connecting rod shank 3 is 28-36mm, the center of described swing arm installing hole 5 and described shedding plate installing hole 6
Away from for 320-460mm, the centrage of described circular platform 4 center away from described swing arm installing hole 5 and described shedding plate installing hole 6
Line 80-110mm, the width of described first muscle 31 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 11, and bearing pin assembles
Between two described swing arm installing holes 5 and swing arm circular groove, equipped with bearing between bearing pin and two described swing arm installing holes 5;Institute
State the centre that the first shedding plate installation step 21 is arranged on the two boards of shedding plate.
Embodiment 2
Referring to shown in Fig. 6, Fig. 7, a kind of tabular connecting rod applied in jacquard heald mechanism, can be closed using steel-casting or aluminum
Golden die casting, it includes big end 1, small end of connecting rod 2 and connecting rod shank 3, and described connecting rod shank 3 is triangle, described company
Bar major part 1 and described small end of connecting rod 2 are all rounded, and described big end 1 is made up of two the first swing arm installation steps 11, two
One coaxial described swing arm installing hole 5 is offered on described first swing arm installation step 11, described small end of connecting rod 2 is by two respectively
Individual first shedding plate installation step 21 forms, two described first shedding plate installation steps 21 offer respectively one coaxial
Described shedding plate installing hole 6, described connecting rod shank 3 is made up of the first web 32 and the first muscle 31, described swing arm installing hole 5 with
One circular platform 4 is provided with the perpendicular bisector of centrage of described shedding plate installing hole 6, described big end 1, described
Connected by three described first muscle 31 between small end of connecting rod 2 and described circular platform 4, arrange between three described first muscle 31
There is described first web 32, described first web 32 middle part is separated by arranging the 4th described first muscle 31.
The thickness of described connecting rod shank 3 is 28-36mm, the center of described swing arm installing hole 5 and described shedding plate installing hole 6
Away from for 320-460mm, the centrage of described circular platform 4 center away from described swing arm installing hole 5 and described shedding plate installing hole 6
Line 80-110mm, the width of described first muscle 31 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 11, and bearing pin assembles
Between two described swing arm installing holes 5 and swing arm circular groove, equipped with bearing between bearing pin and two described swing arm installing holes 5;Two
Individual described first shedding plate installation step 21 is separately mounted to the both sides of shedding plate.
Embodiment 3
Referring to shown in Fig. 8, Fig. 9, a kind of tabular connecting rod applied in jacquard heald mechanism, can be closed using steel-casting or aluminum
Golden die casting, it includes big end 1, small end of connecting rod 2 and connecting rod shank 3, and described connecting rod shank 3 is flat pattern, described company
Bar major part 1 and described small end of connecting rod 2 are all rounded, and described big end 1 is made up of two the first swing arm installation steps 12, two
One coaxial described swing arm installing hole 5 is offered on described first swing arm installation step 12, described small end of connecting rod 2 is by one respectively
Individual second shedding plate installation step 22 forms, and described second shedding plate installation step 22 offers a described shedding plate and installs
Hole 6, described connecting rod shank 3 is made up of the second web 34 and the second muscle 33, described swing arm installing hole 5 and described shedding plate installing hole
Connected by two second muscle 33 between 6, between two described second muscle 33, be provided with the second web 34, described second web 34
Middle part is separated by arranging the 3rd described second muscle 33.
The thickness of described connecting rod shank 3 is 28-36mm, and width is 90-110mm, described swing arm installing hole 5 and described shedding
The centre-to-centre spacing of plate installing hole 6 is 320-460mm, and the width of described second muscle 33 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 12, and bearing pin assembles
Between two described swing arm installing holes 5 and swing arm circular groove, equipped with bearing between bearing pin and two described swing arm installing holes 5;Institute
State the centre that the second shedding plate installation step 22 is arranged on the two boards of shedding plate.
Embodiment 4
Referring to shown in Figure 10, Figure 11, a kind of tabular connecting rod applied in jacquard heald mechanism, steel-casting or aluminum can be adopted
Alloy pressuring casting, it includes big end 1, small end of connecting rod 2 and connecting rod shank 3, and described connecting rod shank 3 is flat pattern, described
Big end 1 and described small end of connecting rod 2 are all rounded, and described big end 1 is made up of two the first swing arm installation steps 12, and two
One coaxial described swing arm installing hole 5 is offered respectively on individual described first swing arm installation step 12, described small end of connecting rod 2 by
Two the second shedding plate installation steps 22 form, and two described second shedding plate installation steps 22 offer one respectively coaxially
Described shedding plate installing hole 6, described connecting rod shank 3 is made up of the second web 34 and the second muscle 33, described swing arm installing hole 5 with
Connected by two second muscle 33 between described shedding plate installing hole 6, between two described second muscle 33, be provided with the second web
34, described second web 34 middle part is separated by arranging the 3rd described second muscle 33.
The thickness of described connecting rod shank 3 is 28-36mm, and width is 90-110mm, described swing arm installing hole 5 and described shedding
The centre-to-centre spacing of plate installing hole 6 is 320-460mm, and the width of described second muscle 33 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 12, and bearing pin assembles
Between two described swing arm installing holes 5 and swing arm circular groove, equipped with bearing between bearing pin and two described swing arm installing holes 5;Two
Individual described second shedding plate installation step 22 is separately mounted to the both sides of shedding plate.
Above-described embodiment simply to illustrate that the technology design of the present invention and feature, its objective is to be to allow in the art
Those of ordinary skill will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this.All
It is equivalent change or the modification according to done by the essence of present invention, all should cover within the scope of the present invention.