CN102140723B - Water jet device of water jet loom - Google Patents
Water jet device of water jet loom Download PDFInfo
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- CN102140723B CN102140723B CN 201110038406 CN201110038406A CN102140723B CN 102140723 B CN102140723 B CN 102140723B CN 201110038406 CN201110038406 CN 201110038406 CN 201110038406 A CN201110038406 A CN 201110038406A CN 102140723 B CN102140723 B CN 102140723B
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Abstract
The invention provides a water jet device of a water jet loom, wherein the assembly of each helical spring and the adjustment of spring force are simple; the spring force to a connection part of a pole is dispersed; and the selection freedom of the helical spring is high. The device comprises a weft insertion nozzle (11) for performing weft insertion of weft yarn (Y) by jetted water, a weft insertion pump (12) for pumping water to the weft insertion nozzle (11), a piston (33) reciprocating in a pump housing (15), a first helical spring (30) disposed in the pump housing (15) for driving the piston (33) toward the reciprocation direction, a cam mechanism (13) for driving the piston (33) toward the reciprocation direction, a cam lever (41) of the cam mechanism (13), a first connecting rod (46) connecting the cam lever (41) with the piston (33), a second helical spring mechanism (14) for driving the cam lever (41) toward the reciprocation direction, a second helical spring (63) of the second helical spring mechanism (14), and a second connecting rod (64) connecting the cam lever (41) with the second helical spring mechanism (14).
Description
Technical field
The present invention relates to possess the water jet device of water jet loom from the pump of injection water to Weft insertion nozzle that supply with.
Background technology
As the water jet device of existing water jet loom, for example exist the wefting insertion pump installation of patent documentation 1 disclosed water jet loom.
This wefting insertion pump installation in the inhalation process of plunger, produces displacement by the elastic force that makes the plunger antagonistic spring, thereby spring is saved up strength, and the spring after utilization saves up strength carries out the ejection operation of plunger, supplies with injection water to Weft insertion nozzle.
With in pump installation, a plurality of springs are arranged to double in spring case with concentric circles at this wefting insertion, and these springs constitute, and work as the mutual different a plurality of springs of eigentone.
The disclosed wefting insertion pump installation of patent documentation 1 has suppressed the resonance of the vibration of the pressure oscillation of the vibration of spring and injection water or drive system of pump, has reduced the pressure fluctuation of injection water.
Patent documentation 1: TOHKEMY 2002-235261 communique
Summary of the invention
Yet,,, owing to having taken in a plurality of helical springs (spring) in spring case thereby exist and be difficult to assemble helical spring problem with in pump installation at the disclosed wefting insertion of patent documentation 1.
In addition, with in pump installation, two helical spring spring forces concentrate on the bar that makes plunger work and the connection part of pump at the disclosed wefting insertion of patent documentation 1, thereby must guarantee fully the intensity of connection part.
Furthermore, because a plurality of helical springs concentrate in spring case, thereby exist helical spring range of choice by the helical spring problem that space constraints is set.
The present invention proposes in view of the above problems, the object of the invention is to, and a kind of water jet device of water jet loom is provided, wherein, each helical spring assembling is simple, seeks the dispersion for the spring force of connection part, and the helical spring selection free degree is high.
in order to address the above problem, the invention is characterized in, possess and utilize injection water weft yarn to be carried out the Weft insertion nozzle of wefting insertion, wefting insertion pump to above-mentioned Weft insertion nozzle force feed water, the plunger of back and forth movement in the pump case of above-mentioned wefting insertion pump, be arranged in the said pump shell and to the 1st helical spring that returns the direction of motion and order about above-mentioned plunger, yearn for the cam mechanism that the direction of motion drives above-mentioned plunger, the cam lever that above-mentioned cam mechanism has, the 1st connecting rod that connects above-mentioned cam lever and above-mentioned plunger, to the 2nd helical spring mechanism that returns the direction of motion and order about above-mentioned cam lever, the 2nd helical spring that above-mentioned the 2nd helical spring mechanism has and connect above-mentioned cam lever and the 2nd connecting rod of above-mentioned the 2nd helical spring mechanism.
According to the present invention, owing to there is no need that the 1st helical spring and the 2nd helical spring all are arranged in pump case, thereby can assemble respectively the 1st helical spring and the 2nd helical spring, compared with prior art, it is easy that helical spring assembling becomes.In addition, the 1st helical spring spring force and the 2nd helical spring spring force put on respectively the 1st connecting rod and the 2nd connecting rod dispersedly, thereby can make the formation of each connecting rod simple, improve reliability and the durability of water jet device.
In addition, in the present invention, in the water jet device of above-mentioned water jet loom, can be also, possess the 1st spring force guiding mechanism of adjusting above-mentioned the 1st helical spring urging force and the 2nd spring force guiding mechanism of adjusting above-mentioned the 2nd helical spring urging force, above-mentioned the 1st spring force guiding mechanism and above-mentioned the 2nd spring force guiding mechanism can be adjusted respectively above-mentioned the 1st helical spring and the 2nd helical spring spring force independently.
In this case, the 1st helical spring and the 2nd helical spring to the adjustment of the urging force of plunger by adjusting independently respectively the 1st helical spring power guiding mechanism and the 2nd helical spring power guiding mechanism carries out.
The 1st helical spring and the 2nd helical spring are arranged on mutually different position, and the adjustment position of each helical spring spring force also becomes different positions, thereby simpler than prior art for the adjustment of the urging force of plunger.
In addition, in the present invention, in the water jet device of above-mentioned water jet loom, can be also, above-mentioned the 2nd helical spring is Compress Spring, above-mentioned the 2nd helical spring mechanism is arranged on a side opposite with above-mentioned wefting insertion pump of above-mentioned cam lever, and the above-mentioned the 1st helical spring center line and the above-mentioned the 2nd helical spring center line tilt to intersect.
In this case, the 1st helical spring center line and the 2nd helical spring center line tilt to intersect, thereby, compare with the situation that the 1st helical spring center line is consistent with the 2nd helical spring center line, the amount of movement of each connecting rod between the cam lever of swing movement and straight-line plunger and the 2nd helical spring mechanism is reduced.Thus, reduce the load that puts on each connecting rod, improved reliability and the durability of water jet device.
In addition, in the present invention, in the water jet device of above-mentioned water jet loom, can be also, the above-mentioned the 1st helical spring spring constant be set as greater than the above-mentioned the 2nd helical spring spring constant.
In this case, by adjusting the spring constant 2nd helical spring spring force less than the 1st helical spring, can carry out inching to the urging force of plunger with the precision higher than prior art.
The present invention can provide a kind of water jet device of water jet loom according to above-mentioned formation, and wherein, each helical spring assembling is simple, seeks the dispersion for the spring force of connection part, and the helical spring selection free degree is high.
Description of drawings
Fig. 1 is the summary side view of water jet device of the water jet loom of the 1st embodiment.
Fig. 2 is the sectional view of the wefting insertion pump of the 1st embodiment.
Fig. 3 is the sectional view of the 2nd helical spring mechanism of the 1st embodiment.
Fig. 4 is the summary side view of water jet device of the water jet loom of the 2nd embodiment.
Fig. 5 is the summary side view of water jet device of the water jet loom of the 3rd embodiment.
Fig. 6 is the sectional view of the 2nd helical spring mechanism of the 4th embodiment.
Symbol description
11 Weft insertion nozzles (weft insertion nozzle)
12 wefting insertion pumps (weft insertion pump)
13,71,81 cam mechanisms
14,72,91 the 2nd helical spring mechanisms
15 pump cases
18 reservoir chambers
26 spring cups
30 the 1st helical springs
32 the 1st cylinders
33 plungers
35,60 connection parts
40 cams
41,73 cam levers
45 turning cylinders
46 the 1st connecting rods
54 shells
57 the 2nd cylinders
59 guide bar
60 connection parts
63,78 the 2nd helical springs
64 the 2nd connecting rods
77 extensions arrange arm
79 fixed parts
The Y weft yarn
M1, M2 center line
The specific embodiment
(the 1st embodiment)
Below, based on accompanying drawing, the water jet device (hereinafter referred to as " water jet device ") of the water jet loom of the 1st embodiment is described.
Water jet device shown in Figure 1 possesses and utilizes injection water that weft yarn Y is carried out the Weft insertion nozzle 11 of wefting insertion (weft insertion), connects with cam mechanism 13 and to the wefting insertion pump 12 of Weft insertion nozzle 11 force feed water and the 2nd helical spring mechanism 14 that connects with cam mechanism 13.
As shown in Figure 2, be formed with suction inlet 16 and ejiction opening 17 at pump case 15.Between the suction inlet 16 and ejiction opening 17 of pump case 15, be formed with reservoir chamber 18.Between suction inlet 16 and reservoir chamber 18, be provided with check-valves 19, between reservoir chamber 18 and ejiction opening 17, be provided with another check-valves 20.One end of suction line 21 is connected with suction inlet 16, and the other end of suction line 21 is communicated with tank 22.One end of bleed pipe 23 is connected with ejiction opening 17, and the other end of bleed pipe 23 is communicated with Weft insertion nozzle 11.
Be formed with cylindrical portion 24 at pump case 15, have the spring cup 26 of bottom tube-like to threadingly engage in cylindrical portion 24.Inner peripheral surface in cylindrical portion 24 is formed with internal thread part 25, is formed with external thread part 27 at the outer peripheral face of spring cup 26, can screw in spring cup 26 from the end of cylindrical portion 24.The lock nut 31 of the external thread part 27 by screwing in spring cup 26 fastening makes spring cup 26 be fixed in pump case 15.
Accommodate the 1st helical spring 30 in spring cup 26.Be formed with through hole 28 in the bottom of spring cup 26, and, be formed with in the bottom and cover side spring base 29.
The 1st cylinder 32 is fixed with respect to pump case 15 in the mode at the center of the cylindrical portion 24 that is positioned at pump case 15.Accommodate in the 1st cylinder 32 with respect to the 1st cylinder 32 and freely the plunger 33 of sliding.
18 directions of leaving are the past direction of motion of plunger 33 take plunger 33 from reservoir chamber, take plunger 33 near the direction of reservoir chamber 18 direction of motion of returning as plunger 33.That is, plunger 33 is in the interior round movement of pump case 15.
An end face of plunger 33 is in the face of reservoir chamber 18.The back and forth movement of plunger 33 makes the volume-variation of reservoir chamber 18.Connect with another end face of plunger 33 with an end of the coaxial coupling spindle 34 of plunger 33.
At the other end of coupling spindle 34, possesses the connection part 35 that connects with cam mechanism 13.Coupling spindle 34 is positioned at the outside of the 1st cylinder 32, and coupling spindle 34 is through with the spring fastening 36 of bottom tube-like, and coupling spindle 34 and spring fastening 36 interfix.
Spring fastening 36 forms the barrel shape with openend, and spring fastening 36 slides freely with respect to being positioned at the 1st inner cylinder 32, and the openend of spring fastening 36 has to radially extending the bearing side spring base 37 that arranges.
The 1st helical spring 30 is between lid side spring base 29 and bearing side spring base 37, and spring fastening 36 inserts the inside that connects the 1st helical spring 30.By intervention, the 1st helical spring 30 is set, makes the 1st helical spring 30 order about plunger 33 by spring fastening 36 to returning the direction of motion.
The adjustment of the urging force of the 1st helical spring 30 is to carry out with respect to the change of the screw-in position of pump case 15 by spring cup 26.If make spring cup 26 screw in deeply with respect to pump case 15, the spring force grow of the 1st helical spring 30 increases the urging force of plunger 33.On the contrary, if spring cup 26 is shoaled with respect to the screw-in of pump case 15, the spring force of the 1st helical spring 30 dies down, to the urging force minimizing of plunger 33.
In this embodiment, spring cup 26 and pump case 15 are equivalent to the 1st spring force guiding mechanism.
Then, cam mechanism 13 is described.Cam mechanism 13 possesses cam lever 41.Cam lever 41 forms the shape that bends to L word shape, extend to arrange to wefting insertion pump 12 sides, possess the cam side arm section 43 that is provided with cam follower 42 and along extend the connecting rod side arm section 44 that arranges to roughly rectangular direction with the extension setting party of cam side arm section 43.At the central portion of cam lever 41, possesses the turning cylinder 45 as rotating fulcrum.
The cam follower 42 of cam side arm section 43 and the driving that is synchronized with loom and contact freely or break away from according to the cam 40 of certain angular speed rotation.In connecting rod side arm section 44, be connected with and wefting insertion pump 12 be connected the 1st connecting rod 46 that connects with cam lever.
The 1st connecting rod 46 possesses link rod plate 47 and is arranged at 2 attachment pegs 48,49 of the both end sides of link rod plate 47.The attachment pegs 48 of the 1st connecting rod 46 is coupling with the connection part 35 of wefting insertion pump 12, and another attachment pegs 49 of the 1st connecting rod 46 is coupling with connecting rod side arm section 44, and wefting insertion pump 12 and cam mechanism 13 connect via the 1st connecting rod 46.The 1st connecting rod 46 rotates freely with respect to cam lever 41 and wefting insertion pump 12.Because the 1st connecting rod 46 connects cam lever 41 and wefting insertion pump 12, thereby the rotational transform of cam lever 41 is the back and forth movement of the plunger 33 of wefting insertion pump 12.
In this embodiment, the connecting rod side arm section 44 of cam lever 41 return the motion side (with plunger 33 return a side corresponding to the direction of motion) be provided with the past motion side (side corresponding with the past direction of motion of plunger 33) that wefting insertion pump 12, the 2 helical spring mechanisms 14 are arranged at connecting rod side arm section 44.
The 2nd helical spring mechanism 14 possesses the 2nd helical spring 63 that arranges in addition with respect to the 1st helical spring 30 of wefting insertion pump 12.
As shown in Figure 3, the 2nd helical spring mechanism 14 possesses shell 54 cylindraceous, and shell 54 inserts the through hole 51 of the carriage 50 that runs through the board that is fixed on loom.At the outer peripheral face of shell 54, be formed with external thread part 55, screw in 2 lock nut 52 and carriage 50 butts of external thread part 55, thus shell 54 is fixed in carriage 50.
Inside in shell 54 is provided with the 2nd cylinder 57, the 2 cylinders 57 and is fixed in shell 54 via cylinder fixed part 56.In the 2nd cylinder 57, accommodate with respect to the 2nd cylinder 57 and freely the guide bar 59 of sliding.About the glide direction of guide bar 59, the past direction of motion take the direction corresponding with the past direction of motion of cam lever 41 as guide bar 59, take with cam lever 41 return direction corresponding to the direction of motion as the direction of motion of returning of guide bar 59.At the 2nd cylinder 57, be formed with the spring base 58 of the ring-type that forms from outer peripheral face to radial outside.
End in cam lever 41 sides of guide bar 59 possesses connection part 60, in another end of guide bar 59, is provided with for the grease nipple 61 that injects lubricating grease.The lubricating grease that injects grease nipple 61 makes guide bar 59 with respect to the slipping smoothness of the 2nd cylinder 57, prevents the sintering of the 2nd cylinder 57 and guide bar 59.
Position at the deflection cam lever 41 of guide bar 59 is equipped with discoideus spring seat board 62, the 2 helical springs 63 between spring seat board 62 and spring base 58.The 2nd helical spring 63 that is contained in shell 54 orders about guide bar 59 by spring seat board 62 to returning the direction of motion.In this embodiment, the ratio of the spring constant of the 1st helical spring 30 and the 2nd helical spring 63 is set as 2: 1.
As shown in Figure 1, be provided with between the connecting rod side arm section 44 of the 2nd connecting rod 64, the 2 connecting rods 64 with the connection part 60 of the 2nd helical spring mechanism 14 and cam lever 41 and connect.The 2nd connecting rod 64 possesses link rod plate 65 and is arranged at 2 attachment pegs 66,67 of the both end sides of link rod plate 65.The attachment pegs 66 of the 2nd connecting rod 64 is coupling with connecting rod side arm section 44, and the connection part 60 of another attachment pegs 67 of the 2nd connecting rod 64 and the 2nd helical spring mechanism 14 is coupling, and the 2nd helical spring mechanism 14 and cam mechanism 13 connect via the 2nd connecting rod 64.The 2nd connecting rod 64 rotates freely with respect to cam lever 41 and the 2nd helical spring 14, transmits the urging force of the 2nd helical springs 63 to cam lever 41.Because the 2nd connecting rod 64 connects cam lever 41 and the 2nd helical spring mechanism 14, thereby the rotational transform of cam lever 41 is the back and forth movement of the guide bar 59 of the 2nd helical spring mechanism 14.
The attachment pegs 49 of the 1st connecting rod 46 and the attachment pegs 66 of the 2nd connecting rod 64 are coupling with connecting rod side arm section 44 respectively.Distance between the attachment pegs 66 of the 2nd connecting rod 64 and the axle center of turning cylinder 45, the distance that is set as between the axle center with the attachment pegs 49 of turning cylinder 45 and the 1st connecting rod 46 equates.In this embodiment, wefting insertion pump 12 and the 2nd helical spring mechanism 14, the mode that tilts to intersect with the center line M2 of the center line M1 of the 1st helical spring 30 and the 2nd helical spring 63 and have position relationship with respect to cam mechanism 13.Thus, compare with the center line M2 of the center line M1 of the 1st helical spring 30 and the 2nd helical spring 63 crossing situation that do not tilt, be accompanied by the 1st connecting rod 46 of rotation of cam lever 41 and the moving range of the 2nd connecting rod 64 and set littlely.
The adjustment of the spring force of the 2nd helical spring 63 is to carry out with respect to the fixed position of carriage 50 by change shell 54.If make shell 54 along moving and fix toward the direction of motion with respect to carriage 50, the distance between spring seat board 62 and spring base 58 diminishes, and the spring force grow of the 2nd helical spring 63 is to the urging force increase of guide bar 59.On the contrary, if make shell 54 move and be fixed in carriage 50 along returning the direction of motion, the distance between spring seat board 62 and spring base 58 becomes large, and the spring force of the 2nd helical spring 63 dies down, to the urging force minimizing of guide bar 59.
In this embodiment, shell 54, carriage 50 and lock nut 52 are equivalent to the 2nd spring force guiding mechanism.
At the board of loom, be provided with retainer 68, this retainer 68 has stipulated to be arranged at the moving range of returning the direction of motion of the plunger 33 of wefting insertion pump 12.Retainer 68 is arranged on the position relative with the connecting rod side arm section 44 of cam lever 41, possess can with the control agent 69 of cam lever 41 butts.Stipulate the slewing area of cam lever 41 with respect to the adjusting of the advance and retreat amount of cam lever 41 by control agent 69, the regulation of the slewing area of returning the direction of motion by cam lever 41 and the moving range of returning the direction of motion of regulation plunger 33.
The effect of this water jet device then, is described.
If cam 40 is synchronizeed with the running of loom and with certain angular speed rotation, cam lever 41 rotates take turning cylinder 45 as fulcrum by the co-operating of cam 40, cam follower 42 and the 1st helical spring 30.
If the rotation of cam 40 makes the connecting rod side arm section 44 of cam lever 41 rotate towards the direction of leaving from wefting insertion pump 12, the put up a resistance urging force of the 1st helical spring 30 and mobile past athletic performance of plunger 33 and spring fastening 36.Spring fastening 36 is by compressing the 1st helical spring 30 toward athletic performance, and plunger 33 is by being sucked into reservoir chamber 18 via suction line 21 with a certain amount of water from tank 22 toward athletic performance.The plunger 33 that sucks water during the athletic performance, the state of check-valves 19 for opening of suction inlet 16 sides, the check-valves 20 of ejiction opening 17 sides is the state of cutting out.The water of bleed pipe 23 is not towards reservoir chamber 18 side adverse currents.In addition, the urging force of the 1st helical spring 30 increases in athletic performance plunger 33, is passed to cam lever 41 by plunger 33, the 1st connecting rod 46.
In addition, in the 2nd helical spring mechanism 14, if the rotation of cam 40 makes the connecting rod side arm section 44 of cam lever 41 rotate towards the direction of leaving from wefting insertion pump 12, the put up a resistance urging force of the 2nd helical spring 63 and mobile past athletic performance of guide bar 59 and spring seat board 62.The past athletic performance of spring seat board 62 is dwindled the distance of spring seat board 62 and spring base 58, thereby compresses the 2nd helical spring 63.The urging force of the 2nd helical spring 63 increases in athletic performance guide bar 59, is passed to cam lever 41 by guide bar 59, the 2nd connecting rod 64.The 2nd helical spring 63 is to the guide bar 59 of returning the direction of motion and ordering about the 2nd helical spring mechanism 14.The urging force of the 2nd helical spring 63 via cam mechanism 13 together with the urging force of the 1st helical spring 30 to the plunger 33 that returns the direction of motion and order about wefting insertion pump 12.
If the rotation of cam 40 makes cam follower 42 by the position of the maximum diameter of cam 40, cam follower 42 leaves from cam 40.Plunger 33 is subject to the 1st helical spring 30 that saves up strength due to compression and the urging force of the 2nd helical spring 63, and cam follower 42 leaves from cam 40, and thus, plunger 33 carries out the athletic performance of returning that the starting position of the yearning athletic performance that causes due to urging force moves.
Force feed 11 sprays to the water of Weft insertion nozzle 11 from Weft insertion nozzle, utilizes this injection water, with weft yarn Y wefting insertion to Warp opening.Cam follower 42 and cam 40 butts by leaving from cam 40, perhaps cam lever 41 and retainer 68 butts, thus the water that finishes 1 cycle sprays.
The solid line of Fig. 1 represents that the plunger 33 of wefting insertion pump 12 and the 2nd helical spring mechanism 14 and guide bar 59 complete toward the position of the cam lever 41 in moment of athletic performance, and the double dot dash line of Fig. 1 represents that plunger 33, guide bar 59 complete the position of the cam lever 41 in the moment of returning athletic performance.
In the water jet device of this embodiment, can carry out the adjustment for the urging force of the plunger 33 of wefting insertion pump 12 in each of wefting insertion pump 12 and the 2nd helical spring mechanism 14.In wefting insertion pump 12, by adjusting the spring force of the 1st helical spring 30, can adjust the urging force of the 1st helical spring 30.The adjustment of the spring force of the 1st helical spring 30 is carried out with respect to the change of the screw-in position of pump case 15 by spring cup 26.Make spring cup 26 screw in deeplyer with respect to pump case 15, the urging force of 30 pairs of plungers 33 of the 1st helical spring more increases.On the contrary, spring cup 26 is more shallow with respect to the screw-in of pump case 15, and the urging force of 30 pairs of plungers 33 of the 1st helical spring more reduces.
In the 2nd helical spring mechanism 14, by adjusting the spring force of the 2nd helical spring 63, can adjust the urging force of the 2nd helical spring 63.If make shell 54 move and fix along the past direction of motion with respect to carriage 50, the distance between spring seat board 62 and spring base 58 diminishes, and the urging force of 63 pairs of guide bar 59 of the 2nd helical spring increases.On the contrary, if make shell 54 move and fix along returning the direction of motion, the distance between spring seat board 62 and spring base 58 becomes large, and the spring force of the 2nd helical spring 63 dies down, to the urging force minimizing of guide bar 59.
According to this embodiment, play following action effect.
The adjustment to the urging force of plunger 33 of (1) the 1st helical spring 30 and the 2nd helical spring 63 is by adjusting respectively the 1st helical spring power guiding mechanism and the 2nd helical spring power guiding mechanism carries out.Because the 1st helical spring 30 and the 2nd helical spring 63 are arranged on different position mutually, the adjustment position of each helical spring 30,63 spring force also becomes different positions, thereby simpler than prior art to the adjustment of the urging force of plunger 33.In addition, the two is arranged in pump case 15 with the 1st helical spring 30 and the 2nd helical spring 63 owing to there is no need, thereby can assemble respectively the 1st helical spring 30 and the 2nd helical spring 63, compared with prior art, helical spring 30,63 assembling become easy.Moreover the spring force of the spring force of the 1st helical spring 30 and the 2nd helical spring 63 puts on respectively the 1st connecting rod 46 and the 2nd connecting rod 64 dispersedly, thereby can make each connecting rod 46,64 formation simple, improves reliability and the durability of water jet device.
(2) the 1st helical springs 30 are Compress Springs, also can be with the Compress Spring identical with the 1st helical spring 30 as the 2nd helical spring 63.
The center line M2 of the center line M1 of (3) the 1st helical springs 30 and the 2nd helical spring 63 tilts to intersect, thereby, compare with the situation that the center line M1 of the 1st helical spring 30 is consistent with the center line M1 of the 2nd helical spring 63, can make between the cam lever 41 of swing movement and the 1st connecting rod 46 between straight-line plunger 33 and guide bar 59 and the amount of movement of the 2nd connecting rod 64 to reduce.Thus, reduced putting on each connecting rod 46,64 load, improved reliability and the durability of water jet device.
(4) the 1st helical springs 30 and the 2nd helical spring 63 are arranged on different position mutually, the adjustment position of each helical spring 30,63 spring force also becomes different positions, and the spring constant of the 1st helical spring 30 is set greater than the spring constant of the 2nd helical spring 63.Thus, by adjusting the spring force of spring constant 2nd helical spring 63 less than the 1st helical spring 30, can carry out inching to the urging force of plunger 33 with the precision higher than prior art.
(5) the 1st connecting rods 46 and the 2nd connecting rod 64 are via the attachment pegs 49 that has separately, 66 and connect with cam lever 41, thereby, the urging force that the urging force of the 1st helical spring 30 is passed to attachment pegs 49, the 2 helical springs 63 of the 1st connecting rod 64 acts on the attachment pegs 66 of the 2nd connecting rod 64.Therefore, the urging force of the 1st helical spring 30 and the 2nd helical spring 63 does not concentrate on specific attachment pegs, can suppress attachment pegs 49 that the concentrations due to urging force causes, 66 or wearing and tearing and the distortion of cam lever 41 etc.
(6) owing to being provided with the 1st helical spring 30 and the 2nd helical spring 63, thereby can set the spring constant of the 1st helical spring 30 and the 2nd helical spring 63, the covibration that is called as surge when preventing 12 work of wefting insertion pump.
(the 2nd embodiment)
The water jet device of the 2nd embodiment then, is described.
The 2nd embodiment is to use the example of extension spring in the 2nd helical spring mechanism.In the 2nd embodiment, for the symbol identical with the 1st same or similar key element use of embodiment, and the explanation of quoting the 1st embodiment.
Water jet device shown in Figure 4 possesses Weft insertion nozzle 11, wefting insertion pump 12, cam mechanism 71 and the 2nd helical spring mechanism 72.Cam mechanism 71 has cam 40, cam lever 73, cam follower 74 and the 1st connecting rod 46.
The 2nd helical spring mechanism 72 possesses the 2nd helical spring 78 and as the fixed part 79 of the 2nd spring force guiding mechanism, an end of the 2nd helical spring 78 connects with the attachment pegs 67 of the 2nd connecting rod 64, and the board of loom is fixed in another end via fixed part 79.The 2nd helical spring 78 is extension springs, and the elongation by the 2nd helical spring 78 saves up strength, and the urging force that is produced by the stretching of the 2nd helical spring 78 is passed to cam lever 73.Another end of the 2nd helical spring 78 by fixed part 79 with respect to the change of the position of the board of loom and can be with respect to the flexible direction change of location of the 2nd helical spring 78.
By change fixed part 79 with respect to the fixed position of the board of loom, thereby can adjust the urging force of the 2nd helical spring 78.If make fixed part 79 leave and fix from cam lever 73, the urging force to returning the direction of motion of plunger 33 increased.On the contrary, if fixed part 79 is fixed near cam lever 73, the urging force to returning the direction of motion of plunger 33 reduced.
The solid line of Fig. 4 represents that the plunger 33 of wefting insertion pump 12 and the 2nd helical spring mechanism 14 and guide bar 59 complete toward the position of the cam lever 73 in moment of athletic performance, and the double dot dash line of Fig. 4 represents that plunger 33, guide bar 59 complete the position of the cam lever 73 in the moment of returning athletic performance.
According to this embodiment, as the 2nd helical spring 78, can use draft helical spring, thereby the helical spring that can be used in water jet device is not limited to Compress Spring.
(the 3rd embodiment)
The water jet device of the 3rd embodiment then, is described.
To be the 1st helical spring center line that makes the wefting insertion pump consistent with the 2nd helical spring center line of the 2nd helical spring mechanism and the example that consists of for the 3rd embodiment.In the 3rd embodiment, to the symbol identical with the 1st same or similar key element use of embodiment, and the explanation of quoting the 1st embodiment.
Water jet device shown in Figure 5 possesses Weft insertion nozzle 11, wefting insertion pump 12, cam mechanism 81 and the 2nd helical spring mechanism 14.Each of Weft insertion nozzle 11, wefting insertion pump 12 and the 2nd helical spring 14 consists of identical with the 1st embodiment.
The 1st connecting rod 46 and the 2nd connecting rod 64 are arranged on connecting rod side arm section's 44, the 1 connecting rods 46 connection cam mechanisms 81 and wefting insertion pump 12, the 2 connecting rods 64 connect the 2nd helical spring mechanism 14 and cam mechanisms 81.
The solid line of Fig. 5 represents that the plunger 33 of wefting insertion pump 12 and the 2nd helical spring mechanism 14 and guide bar 59 complete toward the position of the cam lever 41 in moment of athletic performance, and the double dot dash line of Fig. 5 represents that plunger 33, guide bar 59 complete the position of the cam lever 41 in the moment of returning athletic performance.Plunger 33, guide bar 59 under the state of completing cam lever 41 constantly of athletic performance, each attachment pegs 48,49,66,67 axle center are consistent with center line M1, the M2 of the 1st helical spring 30 and the 2nd helical spring 63, and the 1st connecting rod 46 and the 2nd connecting rod 64 be configuration point-blank mutually.
Under the state of completing cam lever 41 constantly that returns athletic performance of plunger 33, guide bar 59, the center line M2 of the axle center of the attachment pegs 66 of the 2nd connecting rod 64 that is coupling with cam lever 41 and the center line M1 of the 1st helical spring 30 and the 2nd helical spring 63 is inconsistent.At this moment, the 2nd connecting rod 64 tilts, thereby the guide bar 59 of the 2nd helical spring mechanism 14 does not tilt.
In this embodiment, form and complete constantly the 1st connecting rod 46 and the 2nd connecting rod 64 formation of the cam levers 41 of configuration point-blank mutually in the past athletic performance of the plunger 33 of wefting insertion pump 12 and the 2nd helical spring mechanism 14 and guide bar 59.Be not limited to this formation, for example also can form the 1st connecting rod 46 and the mutual formation of the cam lever of configuration point-blank of the 2nd connecting rod 64 constantly completed of returning athletic performance in plunger 33, guide bar 59.
According to the 3rd embodiment, can play the action effect except (3) in action effect (1)～(6) of the 1st embodiment.
(the 4th embodiment)
The water jet device of the 4th embodiment then, is described.
The 4th embodiment is the formation example different from the 1st embodiment of the 2nd helical spring power guiding mechanism of the 2nd helical spring mechanism.In the 4th embodiment, to the symbol identical with the 1st same or similar key element use of embodiment, and the explanation of quoting the 1st embodiment.
As shown in Figure 6, the 2nd helical spring mechanism 91 possesses the shell that the round-ended cylinder shape is arranged 92 that is fixed in the board of loom via the bolt (not shown).In the bottom of shell 92, be formed with screwed hole 93, the cylinder fixed part 94 of tubular screws in screwed hole 93.In the periphery of cylinder fixed part 94, be formed with external thread part 95, external thread part 95 is threadedly engaged with screwed hole 93.At the external thread part 95 of cylinder fixed part 94, lock nut 96 and shell 92 butts of screw-in, thus, cylinder fixed part 94 is fixed in shell 92.
The end of the cylinder fixed part 94 in shell 92 is equipped with the 2nd cylinder 57, in the 2nd cylinder 57, accommodates with respect to the 2nd cylinder 57 and freely the guide bar 59 of sliding.About the glide direction of guide bar 59, the past direction of motion take the direction corresponding with the past direction of motion of cam lever 41 as guide bar 59, take with cam lever 41 return direction corresponding to the direction of motion as the direction of motion of returning of guide bar 59.At the 2nd cylinder 57, be formed with the spring base 58 of the ring-type that forms from outer peripheral face to radial outside.
End in cam lever 41 sides of guide bar 59 possesses connection part 60, and the other end of guide bar 59 is provided with grease nipple 61.Position at the deflection connection part 60 of guide bar 59 is equipped with discoideus spring seat board 62, the 2 helical springs 63 between spring seat board 62 and spring base 58.The 2nd helical spring 63 is yearned for the direction of motion by spring seat board 62 orders about guide bar 59.
In this embodiment, by the position of change cylinder fixed part 94 with respect to shell 92, thereby can adjust the spring force of the 2nd helical spring 63.So in this embodiment, shell 92 and cylinder fixed part 94 are equivalent to the 2nd spring force guiding mechanism.
Therefore, after the shell 92 with the 2nd helical spring mechanism 91 is fixed in the board of loom, can adjust the spring force of the 2nd helical spring 63, compare with the adjustment of the spring force of change enclosure location, the adjusting operation of spring force is easier.
In addition, the water jet device of above-mentioned embodiment represents one embodiment of the present invention, and the present invention is not limited to above-mentioned embodiment, and is as described below, can carry out various changes in the scope of inventive concept.
In above-mentioned the 1st～the 4th embodiment, the ratio that makes the 1st helical spring and the 2nd helical spring spring constant is 2: 1, but the ratio of the 1st helical spring and the 2nd helical spring spring constant is not limited to 2: 1, can suitably set according to condition.For example, can make the 1st helical spring and the 2nd helical spring is identical helical spring.
In the above-described 2nd embodiment, extend in the cam side arm section of cam lever the leading section that arranges, be provided as the 2nd helical spring of extension spring, but be not limited to this example, for example, also can near the retainer of connecting rod side arm section, extension spring be set, as the 2nd helical spring.Perhaps, can be in the cam lever setting with respect to cam side arm section and connecting rod side arm section and the arm that forms in addition arranges draft helical spring in the position of working as the 2nd helical spring.
Claims (8)
1. the water jet device of a water jet loom possesses:
Weft insertion nozzle utilizes injection water to carry out wefting insertion to weft yarn;
The wefting insertion pump to described Weft insertion nozzle force feed water, has pump case, plunger and the 1st helical spring, and this plunger is back and forth movement in this pump case, and the 1st helical spring is arranged in described pump case, orders about described plunger to returning the direction of motion;
Cam mechanism has cam lever, yearns for the direction of motion and drives described plunger;
The 1st connecting rod connects described cam lever and described plunger;
The 2nd helical spring mechanism has the 2nd helical spring, orders about described cam lever to returning the direction of motion; And
The 2nd connecting rod connects described cam lever and described the 2nd helical spring mechanism.
2. the water jet device of water jet loom according to claim 1, is characterized in that,
Possess the 1st spring force guiding mechanism of adjusting described the 1st helical spring urging force and the 2nd spring force guiding mechanism of adjusting described the 2nd helical spring urging force, described the 1st spring force guiding mechanism and described the 2nd spring force guiding mechanism can be adjusted respectively described the 1st helical spring and the 2nd helical spring spring force independently.
3. the water jet device of water jet loom according to claim 2, is characterized in that,
Described the 1st spring force guiding mechanism is arranged at described wefting insertion pump, and described the 2nd spring force guiding mechanism is fixed with respect to the board of described water jet loom described the 2nd helical spring mechanism in mode that can change of location.
4. the water jet device of water jet loom according to claim 2, is characterized in that,
Described the 1st spring force guiding mechanism is arranged at described wefting insertion pump, and described the 2nd helical spring is arranged at the inside of described the 2nd spring force guiding mechanism.
5. the water jet device of water jet loom according to claim 2, is characterized in that,
Described the 2nd helical spring is extension spring, and an end of described the 2nd spring force guiding mechanism connects with described the 2nd helical spring, and another end is fixed in mode that can change of location with respect to the board of described water jet loom.
6. the water jet device of water jet loom according to claim 1, is characterized in that,
Described the 2nd helical spring is Compress Spring, and described the 2nd helical spring mechanism is arranged on a side opposite with described wefting insertion pump of described cam lever, and the described the 1st helical spring center line and the described the 2nd helical spring center line tilt to intersect.
7. the water jet device of water jet loom according to claim 1, is characterized in that,
In the axle center of the plunger of the described wefting insertion pump consistent mode of center line with described the 2nd helical spring mechanism, make described the 1st helical spring consistent with the described the 2nd helical spring center line, described the 1st connecting rod and described the 2nd connecting rod be configuration point-blank mutually.
8. the water jet device of the described water jet loom of any one according to claim 1～7, is characterized in that,
The described the 1st helical spring spring constant is set as greater than the described the 2nd helical spring spring constant.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010019851A JP5521588B2 (en) | 2010-02-01 | 2010-02-01 | Water injection device for water jet loom |
| JP2010-019851 | 2010-02-01 |
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| Publication Number | Publication Date |
|---|---|
| CN102140723A CN102140723A (en) | 2011-08-03 |
| CN102140723B true CN102140723B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110038406 Active CN102140723B (en) | 2010-02-01 | 2011-01-31 | Water jet device of water jet loom |
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| JP (1) | JP5521588B2 (en) |
| CN (1) | CN102140723B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014214402A (en) * | 2013-04-26 | 2014-11-17 | 株式会社豊田自動織機 | Weft inserting pump of water jet loom |
| CN103967770B (en) * | 2014-05-22 | 2016-11-23 | 青岛百佳机械有限公司 | Water-jet loom picking pump structure-improved |
| JP6248839B2 (en) * | 2014-07-15 | 2017-12-20 | 株式会社豊田自動織機 | Water injection device for water jet loom |
| CN104532454A (en) * | 2015-01-26 | 2015-04-22 | 南通双弘纺织有限公司 | Weft insertion mechanism |
| CN106929981B (en) * | 2017-03-06 | 2021-01-29 | 嘉兴市海宇纺织有限公司 | Water spraying device in water-jet loom |
| JP7154770B2 (en) | 2018-01-31 | 2022-10-18 | 株式会社豊田自動織機 | Water injection device for water jet loom |
| JP7303059B2 (en) * | 2019-07-30 | 2023-07-04 | 津田駒工業株式会社 | Weft insertion device in water jet loom |
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| CN1196412A (en) * | 1997-03-25 | 1998-10-21 | 北陆成型工业株式会社 | Plunger pump for water jet loom |
| CN2753755Y (en) * | 2004-09-25 | 2006-01-25 | 绍兴越剑机械制造有限公司 | Weft spraying device of water-jet loom |
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| JPS61152853A (en) * | 1984-12-25 | 1986-07-11 | 日産自動車株式会社 | Pressurized water feeder in water jet type loom |
| JPS6385683U (en) * | 1986-11-26 | 1988-06-04 | ||
| JP2002235261A (en) * | 2001-02-06 | 2002-08-23 | Tsudakoma Corp | Weft-insertion pump for water-jet loom |
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| GB2324123A (en) * | 1997-01-28 | 1998-10-14 | Cummins Engine Co Inc | A fuel pump with means to minimise side loads on plunger |
| CN1196412A (en) * | 1997-03-25 | 1998-10-21 | 北陆成型工业株式会社 | Plunger pump for water jet loom |
| CN2753755Y (en) * | 2004-09-25 | 2006-01-25 | 绍兴越剑机械制造有限公司 | Weft spraying device of water-jet loom |
| CN101328872A (en) * | 2007-06-21 | 2008-12-24 | 株式会社丰田自动织机 | Picking pump of water jet loom |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102140723A (en) | 2011-08-03 |
| JP2011157651A (en) | 2011-08-18 |
| JP5521588B2 (en) | 2014-06-18 |
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