CN101619518B - Device for lifting reverse roller of loom - Google Patents
Device for lifting reverse roller of loom Download PDFInfo
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- CN101619518B CN101619518B CN2009101398015A CN200910139801A CN101619518B CN 101619518 B CN101619518 B CN 101619518B CN 2009101398015 A CN2009101398015 A CN 2009101398015A CN 200910139801 A CN200910139801 A CN 200910139801A CN 101619518 B CN101619518 B CN 101619518B
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- lifting arm
- reverse rollers
- lifting
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Abstract
The present invention provides a device for lifting a reverse roller of a loom without worry of chaine winding shaft collision when carrying the chaine winding shaft for replacement. Right and left frames of the loom are provided with circular bearing supporting seats respectively, bearings jogged on two ends of the reverse roller are supported on the bearing supporting seats. The device for lifting the reverse roller and holding on a back-off position is provided with a pair of projecting parts arranged on a shaft part of two ends of the reverse roller and extending from a jogged part of the bearing toward the axial direction, and a pair of lifting rods supported asway on the external side of the bearing supporting seat respectively, wherein the pair of the lifting rods cooperate with the pair of the projecting parts to lift the reverse roller and hold on the back-off position.
Description
Technical field
The present invention relates to the reverse rollers that opposing connection hangs from the warp thread of warp thread spool and promote the device for lifting reverse roller that holds it in retreating position.
Background technology
Reverse rollers is observed from the winding side of loom and rotatably is configured in the top position of more leaning on rear side than warp thread spool.Will be from the warp thread of warp thread spool around hanging on the reverse rollers and being directed to the loose warp roller.The loose warp roller is swung at the fore-and-aft direction of loom, and carries out easing motion.Suppress the variation of warp tension along with the warp opening movement of heald.The warp thread spool places it in order to change it when carrying on the spool transfer car(buggy) along with its bead diameter of increase of volume amount increases, and bead and reverse rollers produce interferes.Therefore, the warp thread spool is changed at every turn, all need be carried out the dismounting and the installation exercise of reverse rollers.
Reverse rollers is by constituting with a pair of axial region that has the bearing fitting portion and be bonded on pipe portion two ends around the pipe portion of hanging warp thread.Pipe portion is along whole fabric width extension and make reverse rollers become weight.Make the operation property reduction of the replacing of warp thread spool as the handling operation of the reverse rollers of weight.Therefore, in patent documentation 1 (japanese kokai publication hei 9-111600 communique), be provided with device for lifting reverse roller.This device for lifting reverse roller is provided with bearing support block on the left and right sides frame of loom, this bearing support block is to the rear openings of oblique upper and do in the arc-shapedly, on this bearing support block, places the bearing of reverse rollers.In addition, above-mentioned device for lifting reverse roller has and a pair ofly is arranged on the lifting arm on the frame that pin on the frame is supported on loom swingably by means of setting.This lifting arm is configured in than bearing support block in the inner part, and when the replacing operation of carrying out the warp thread spool, the operator makes the lifting arm swing.Thus; Roller auxiliary section through being arranged on the lifting arm promotes reverse rollers in inboard the cooperation with axial region of the Bearing support at the two ends of ratio inverse roller; And when bearing is left from bearing support block, stop lifting arm to reciprocal swing with backing pin, thereby reverse rollers is remained on retreating position.The warp thread spool that is placed on spool transfer car(buggy) upper edge ground handling for replacing has been avoided the interference with reverse rollers.Like this,, be urged on bearing support block around the tension force that hangs over the warp thread on the reverse rollers, thereby can in the loom running, remain on the bearing support block reliably owing to utilizing though the bearing of reverse rollers is in the state that only is placed on the bearing support block.
But; The warp thread spool when being positioned over spool transfer car(buggy) upper edge ground handling, though avoided the interference with reverse rollers owing to be provided with device for lifting reverse roller; Thereby having produced new problem, that is: a pair of lifting arm of device for lifting reverse roller and warp thread spool collide.Say that at length lifting arm is owing to be configured in than bearing support block in the inner part, thus with the approaching state in the end of the pipe portion of reverse rollers under, cooperate with the axial region of reverse rollers.The bead of warp thread spool is positioned in the fabric width direction near the end of pipe portion of reverse rollers.Therefore, lifting arm is at the lateral surface of fabric width direction near the bead of warp thread spool.Therefore, the operator need cautiously operate the spool transfer car(buggy) for left and right sides bead and the lifting arm that prevents the warp thread spool collides.The weight of the warp thread spool of especially full volume is very heavy; Except the operating difficulties of spool running car; Under the situation of colliding producing maloperation; Because the damage of device for lifting reverse roller or the degree of injury of bead are big, thereby require the operator cautiously to carry out the operation of spool transfer car(buggy), make the operation property deterioration of warp thread changing reel.
Summary of the invention
In view of the above problem that prior art exists, the object of the present invention is to provide a kind ofly when carrying the warp thread spool for replacing, do not worry the device for lifting reverse roller that the warp thread spool collides.
In order to realize the foregoing invention purpose; In device for lifting reverse roller of the present invention; Frame about loom has circular-arc bearing support block respectively; Be entrenched in around the bearing of extension and be supported on the above-mentioned bearing support block from the two ends of the reverse rollers of the warp thread of warp thread spool; Above-mentioned reverse rollers is promoted and remains on retreating position, have: be arranged on axial region and a pair of jut that extends to axis direction from the fitting portion of bearing at the two ends of reverse rollers, and a pair of lifting arm that is supported on the outside of above-mentioned bearing support block swingably respectively; This a pair of lifting arm promotes and remains on retreating position through cooperating with above-mentioned a pair of jut with reverse rollers.
In addition; Can make: lifting arm has the main part that cooperates with above-mentioned jut and is used for manually operated handle portion; The position of the application point on the main part, the force on the handle portion and the fulcrum on the frame, fulcrum and force are positioned at an opposite side each other across application point.
Have, can make: fastening portion is arranged on either party in main part and the handle portion, and handle portion is arranged to main part rotation relatively, and handle portion is passed through to rotating away from the direction of warp thread spool and cooperating with main part by means of fastening portion.
Have again; Can make: be provided with in lifting arm and frame either party and utilize spring members to the afterburning fastening parts of the opposing party; The swing of the lifting arm of these fastening parts when promoting reverse rollers and with above-mentioned the opposing party's sliding-contact, when reverse rollers arrives retreating position, just give prominence to from an above-mentioned side.
Have, can make: a pair of lifting arm has the maintaining part of the end that keeps end guiding element support column respectively, and this end guiding element support column is positioned at the ratio inverse roller and more disposes abreast by rear side and with reverse rollers, and extends along whole fabric width.
Effect of the present invention is following.
According to the present invention, owing to have: be arranged on the axial region at above-mentioned reverse rollers two ends and a pair of jut that extends to axis direction from the fitting portion of above-mentioned bearing; And be supported on the outside of above-mentioned bearing support block swingably respectively, in other words for from above-mentioned bearing support block a pair of lifting arm laterally, thereby a pair of lifting arm is cooperating with a pair of jut than bearing more in the outer part.Therefore, lifting arm compares at the device for lifting reverse roller that cooperates with the axial region of reverse rollers more in the inner part than bearing with the lifting arm of prior art, and bigger apart from the distance of the bead of warp thread spool in the fabric width direction, its amount that goes out greatly width with bearing at least is suitable.Thus, when carrying the warp thread spool for replacing, the danger that the warp thread spool is run into lifting arm reduces, and has improved the operation property of warp thread changing reel.In addition, when the operation lifting arm, do not worry damaging the warp thread contact-making surface of reverse rollers.That is, the operation of lifting arm can be undertaken by two people, but for saving manpower, in the majority by the situation that a people operates usually, a pair of lifting arm is by the operation of a people one side one side ground.Therefore, because of reverse rollers only a side promote earlier the state that is in inclination.Reverse rollers is if promote opposite side under this state, then at bearing from the moment that bearing support block breaks away from, the situation that reverse rollers departs to low opposite side slip appears sometimes.This occasion, in one type of prior art syringe, around the end of the part that hangs with warp thread, promptly the end of warp thread contact-making surface might be collided with lifting arm, and reverse rollers might produce scar on the warp thread contact-making surface.Device of the present invention since bearing between lifting arm and reverse rollers between the part that hangs with warp thread, thereby if such skew is arranged, reverse rollers also can be avoided the scar that the warp thread contact-making surface produced by lifting arm.Such as under the situation of the operation of carrying out lifting arm by two people in the both sides of loom simultaneously, needn't when note that reverse rollers is not slided obliquely, both sides be promoted equably, thereby improved operation property.
In addition, owing to lifting arm has the main part that cooperates with above-mentioned jut and is used for manually operated handle portion, the position of the application point on the main part, the force on the handle portion and the fulcrum on the frame, fulcrum and force are positioned at an opposite side each other across application point; Thereby, in the lever that forms by lifting arm, force and application point to the lever ratio of fulcrum greater than 1.Therefore, the power that acts on the handle portion increases, and the operator can enough littler power rise to retreating position with reverse rollers.
Have, because fastening portion is arranged in main part and the handle portion either party, handle portion is arranged to main part rotation relatively again, and handle portion is passed through to rotating away from the direction of warp thread spool and cooperating with main part by means of fastening portion; Thereby when promoting reverse rollers, handle portion cooperates with main part and can be used as the force and work.Because fulcrum and force are positioned at an opposite side each other across application point; Thereby; Rotate to direction through handle portion away from the warp thread spool; Thereby make the application point that is formed at main part to the direction rotation away from the warp thread spool, the reverse rollers that cooperates with main part at application point then moves to the direction away from the warp thread spool.In addition, handle portion through to the direction rotation near the warp thread spool, we can say and folded up except when promoting reverse rollers, thereby can avoid owing to the outstanding harm that causes of handle portion.For example, in the replacing operation of on-stream and warp thread spool, handle portion is folded, the obstacle that can avoid it that operation of operator is caused.
Have again; Utilize the fastening parts of spring members owing to be provided with in lifting arm and frame either party to the opposing party's reinforcing; The swing of the lifting arm of these fastening parts when promoting reverse rollers and with above-mentioned the opposing party's sliding-contact, when reverse rollers arrives retreating position, just give prominence to from an above-mentioned side; Thereby because the deadweight of reverse rollers and when the direction swing opposite with the direction of improvement of reverse rollers, the fastening parts then engage with above-mentioned the opposing party and stop the swing of lifting arm from an above-mentioned side's ledge when lifting arm.Thereby lifting arm is automatically by fastening, and reverse rollers is maintained at retreating position.
Have again; Because the two ends that its maintaining part of a pair of lifting arm keeps holding the guiding element support column respectively, thereby, when the replacing operation of warp thread spool; Can promote reverse rollers and end guiding element support column simultaneously; And make them move to retreating position separately respectively, therefore, further improved the replacing operation property of warp thread spool.
Description of drawings
Fig. 1 is the rearview that the device for lifting reverse roller 40 of expression embodiment of the present invention is observed from the rear side of loom.
Fig. 2 is the side view of seeing from the left side of Fig. 1, the device for lifting reverse roller 40 of the embodiment of the present invention in the running of expression loom.
Fig. 3 representes relative Fig. 2, and reverse rollers 4 is in the device for lifting reverse roller 40 in the lifting process.
Fig. 4 representes relative Fig. 3, makes reverse rollers 4 move to the device for lifting reverse roller 40 of the state of retreating position.
Among the figure:
The 1-side frame, 2-warp thread spool, 3-reverse rollers support, 3a-base portion, 3b-bearing support block, 3c-roller support portion, 3d-lateral surface, 3e-medial surface; The 3f-sliding contact surface, the 3g-auxiliary section, the 4-reverse rollers, 4a, 7a-axial region, the 4aa-jut, 4b, 7b-pipe, 5-holds guiding element support column (エ Application De Le one タ ス テ one), 6-loose warp roller; The 7-backing roll, the 8-overhang bracket, the supporting of 9-pars intermedia, 10-spherical bearing unit, the 11-pin, 12-loose warp bar, the 13-bearing, 14-holds guiding element (エ Application De Le one タ); 15-support column sleeve, 16, the 17-bolt, 18, the 30-oiliness bearing, 19-loose warp lever, 20-lifting arm, 21-main part, 21a-roller auxiliary section; The 21aa-mating holes, 21b-fastening portion, 21c-pin-and-hole, 21d-lateral surface, 21f-pin-and-hole, 21e-medial surface, 21g-bar holddown groove; The 21h-maintaining part, 22-handle portion, 23,24-pin, 25-ring-type leaf spring, 26-backing pin, 27-handgrip, 28-spring; The 29-back-up ring, 31-sleeve, 40-device for lifting reverse roller, E-force, F-fulcrum, L-application point, W-warp thread.
The specific embodiment
Below, according to accompanying drawing embodiment of the present invention is described.Fig. 1 representes that the rearview of the device for lifting reverse roller 40 of carrying device is observed in expression from the rear side of loom from the carrying device of the right portions of the winding side observation of loom.And the parts that can not see in order to represent overlapping in the vertical direction of fabric width direction of extending with reverse rollers 4, promptly on the fore-and-aft direction of the loom of observing from winding side, have carried out each position component and shape suitably to change to describe.Fig. 2 is the side view of seeing from the left side of Fig. 1, the device for lifting reverse roller 40 in the running of expression loom.Except not describing overhang bracket shown in Figure 18, pars intermedia supports 9, spherical bearing unit 10, and loose warp pin 11, loose warp bar 12 outside the loose warp lever 19, is described loose warp roller 6 with double dot dash line.Fig. 3 representes relative Fig. 2, in order to change warp thread spool 2, uses device for lifting reverse roller 40 to make reverse rollers 4 be in the state in the lifting process.After Fig. 4 is illustrated in and promotes reverse rollers 4 and remain on retreating position, the state that handle 22 has been folded
As depicted in figs. 1 and 2, reverse rollers support 3 usefulness bolts 16 and nut are separately fixed at from the medial surface of the side frame 1 on left side that the winding side of loom is observed and right side, and detailed says, is the medial surface of fabric width direction.Thus, comprise that the reverse rollers support 3 that the side frame used on the right side 1 and right side are used just forms the right side frame of loom, and comprise that reverse rollers support 3 that the side frame 1 used in the left side and left side are used just forms the left side frame of loom.Be provided with the outstanding bearing support block 3b of direction to the inside on the reverse rollers support 3 from the medial surface 3e that is fixed on the base portion 3a on the side frame 1.This bearing support block 3b is formed by circular-arc bearing embeded slot, this embeded slot have the oblique upper rear openings peristome.Therefore, become to remain on the bearing support block 3b from above-mentioned peristome with loading and unloading with the chimeric bearing 13 of the bearing fitting portion of the axial region 4a that is arranged on reverse rollers 4 two ends.Reverse rollers 4 waits a pair of above-mentioned axial region 4a that engages with the inner peripheral surface of managing the 4b two ends to constitute by the pipe 4b that extends along whole fabric width with through welding.Reverse rollers 4 releasably is placed on the bearing support block 3b through bearing 13, and by means of reverse rollers support 3 two ends rotatably is supported on the side frame 1.
On each reverse rollers support 3, also be respectively equipped with from the roller support portion 3c of the medial surface 3e direction extension to the inside of base portion 3a.This roller support portion 3c is pressed into oiliness bearing 18, and supported roller 7 rotatably.Backing roll 7 waits a pair of axial region 7a that is bonded on the inner peripheral surface of managing the 7b two ends to form by the pipe 7b that extends along whole fabric width with through welding.
As shown in Figure 1, on the axial region 7a of backing roll 7, between pipe 7b and roller support portion 3c, separate fasteningly to be fixed with overhang bracket 8 respectively through what is called with bolt.On each overhang bracket 8, be formed with the hole that lets loose warp roller 6 pass, each overhang bracket 8 has the oiliness bearing 30 that is pressed in the above-mentioned hole.And backing roll 7 has more than one pars intermedia supporting 9 with bolt on the outer peripheral face of pipe 7b.This pars intermedia supporting 9 possesses the support body that has the pin supporting walls respectively and be fixed by bolts to the U-shaped on the outer peripheral face of managing 7b in both sides, and through rotatably being supported on the pair of rolls on the above-mentioned support body along the pin of fabric width direction extension with the chimeric bearing of this pin.Two pin-and-holes that are provided with on supporting walls at each pin are along the circumferencial direction configuration of loose warp roller 6, and pair of rolls all contacts with the part of the periphery of loose warp roller 6.Thus, loose warp roller 6 is avoiding warp thread W and pars intermedia by around extension to be supported under 9 state of contact, rotatably is supported in the pars intermedia supporting 9, has suppressed the deflection that is caused by warp tension.
At an axial region 7a of backing roll 7, in this embodiment the axial region 7a on the right side of loom, fasteningly loose warp lever 19 is fixed between overhang bracket 8 and the roller support portion 3c through separating with bolt.Front end at loose warp lever 19 is connected with spherical bearing unit 10 through pin 11, and the pin thread that will form at an end of loose warp bar 12 is screwed in the negative thread of spherical bearing unit 10.The other end of loose warp bar 12 is connected with not shown drive unit, and drive unit makes the fore-and-aft direction swing of loose warp bar 12 to loom.Swing through loose warp bar 12 makes 19 swings of loose warp lever.Backing roll 7 rotates to both forward and reverse directions owing to the swing of loose warp lever 19.Rotation along with the both forward and reverse directions of backing roll 7; The loose warp roller 6 that supported roller 7 supports carries out so-called positive easing motion through direction swing forwards, backwards; And be accompanied by the warp opening movement of heald and move, thereby suppress the change of warp tension to the direction of the variation of eliminating warp path length.
Be arranged at loom about each frame on the outside of bearing support block 3b, a pair of lifting arm 20 is supported on each frame through pin 23 swingably.Comprise a pair of lifting arm 20, support this lifting arm 20 frame, be arranged on the axial region 4a at reverse rollers 4 two ends after the jut 4aa that states, constitute device for lifting reverse roller 40 of the present invention.Below, just Fig. 1, loom right side shown in Figure 2 specify device for lifting reverse roller 40.
Through with bolt 16 and nut engages, comprise that reverse rollers support 3 that the side frame 1 used on the right side and right side are used constitutes the right side frame of looms.In this embodiment, lifting arm 20 supports through the pin 23 that is straightened on the lateral surface 3d that is arranged on reverse rollers support 3 swingably, thereby is supported on the outside of bearing support block 3b swingably.At length say, be provided with negative thread and outside side 3d opening in the rear side upper end of the base portion 3a of reverse rollers support 3, the pin 23 that will have a flange of hexagonal cross-sectional shape is screwed in this negative thread and it is erect be provided with.Lifting arm 20 has main part 21 and can be rotatably set in the handle portion 22 on this main part 21.Main part 21 has pin-and-hole in the upper end, through above-mentioned pin 23 is chimeric with this pin-and-hole, thereby lifting arm 20 is supported on swingably the outside of bearing support block 3b.
The main part 21 of lifting arm 20 has pin-and-hole at the lower position of pin 23, inserts and chimeric backing pin 26 as the fastening member in this pin-and-hole.This backing pin 26 is by the spring that passes above-mentioned pin-and-hole 28 reinforcings as the spring members setting, and its front end is outstanding from the medial surface 21e of main part 21, and contacts with sliding contact surface 3f on the lateral surface 3d that is arranged on reverse rollers support 3.Say that at length spring 28 is compression helical springs, it is contained in the formed spring spatial accommodation of outer peripheral face by the spring fastening wall of the outboard end that is formed at pin-and-hole, the inner peripheral surface that is formed at fastening step on the backing pin 26, pin-and-hole and backing pin 26.Spring 28 is supported on the above-mentioned spring fastening wall through an end; The above-mentioned fastening step of other end pushing backing pin 26; Thereby to backing pin 26 reinforcings; Backing pin 26 is measured from the gap between outstanding medial surface 21e of medial surface 21e and the sliding contact surface 3f accordingly, the front end of backing pin 26 is contacted with the sliding contact surface 3f of reverse rollers support 3.Blocked by back-up ring 29 near the rear end of backing pin 26.This back-up ring 29 in lifting arm 20 swing and backing pin 26 when the lateral surface 3d of reverse rollers support 3 breaks away from, when promptly reverse rollers 4 arrived retreating positions, control backing pin 26 was from the overhang of medial surface 21e.In addition, be provided with pin thread in the outboard end of backing pin 26, handgrip 27 is threaded fixing with it.
The main part 21 of lifting arm 20 is provided with roller auxiliary section 21a with the bearing support block 3b that on tension roller support 3, is provided with accordingly under the state that is in position of readiness shown in Figure 2.This roller auxiliary section 21a is by connecting main part 21 from lateral surface 21d and reaching the through hole of medial surface 21e and the ring-shaped sleeve 31 that is pressed into this through hole constitutes.The axial region 4a of reverse rollers 4 and the bearing support block 3b roller auxiliary section 21a in the outer part that is positioned at ratio inverse roller support 3 have jut 4aa accordingly.Say that at length this jut 4aa extends along axis direction from the fitting portion of bearing 13, and outstanding and arrive the roller auxiliary section 21a of main part 21 from the lateral surface 3d of the base portion 3a of reverse rollers support 3.Have, in this embodiment, jut 4aa connects roller auxiliary section 21a and outstanding from the lateral surface 21d of main part 21 again.
Lifting arm 20 has main part 21 and can be rotatably set in the handle portion 22 on this main part 21.Below, handle portion 22 is carried out detailed explanation.Main part 21 has pin-and-hole 21f than roller auxiliary section 21a by lower position.Pin 24 with flange of hexagonal cross-sectional shape is passed in the pin-and-hole that is provided with on the handle portion 22, and gives prominence to and insert the above-mentioned pin-and-hole 21f from the medial surface of handle portion 22.The front end of pin 24 is provided with pin thread, through nut being screwed into the front end of pin 24, is fixed on the stage portion face that is arranged among the pin-and-hole 21f thereby will sell 24, pin 24 is erect be arranged on the lateral surface 21d of main part 21.Between the flange portion and handle portion 22 of pin 24, ring-type leaf spring 25 is sleeved on the pin 24.Its lateral surface 21d to main part 21 is pushed in 25 pairs of handle portion 22 reinforcings of ring-type leaf spring.Handle portion 22 is because the frictional force with lateral surface 21d that produces through extruding is kept the relative position with main part 21, and remains on the main part 21.As shown in Figure 2, usually, we can say that handle portion 22 keeps folding state, thereby avoid because of giving prominence to the inconveniences of bringing from main part 21.
The main part 21 of lifting arm 20 has the bar holddown groove 21g of warp thread spool 2 one side openings.Be provided with the negative thread of outside side 3d opening with the corresponding base portion 3a of this bar holddown groove 21g at reverse rollers support 3.Usually, promptly except when changing warp thread spool 2, the bolt 17 with packing ring is fastened on lifting arm 20 on the reverse rollers support 3 through bolt 17 being screwed in the above-mentioned negative thread under the state that passes bar holddown groove 21g.In addition, remove the fastening of lifting arm 20 and reverse rollers support 3 through unclamping bolt 17, lifting arm 20 can be an oscillation center with pin 23 just, promptly swings as fulcrum F.
Keep the end guiding element support column 5 of several end guiding elements 14 to be positioned at ratio inverse roller 4 and also lean on rear side and dispose abreast with reverse rollers 4, and along whole fabric width extension.The elastic wire of end guiding element 14 use helical spring materials etc. is made circular-arc, forms ring-type and has a pair of yarn guiding part at its two ends.End guiding element 14 fixes on the end guiding element support column 5 with elastic card, carries out fastening according to the location portability of the fabric width direction of the warp thread W that is guided movingly.In addition, the warp thread W of warp thread spool 2 of harness eye that is provided for not passing heald owing to processing mistake etc. of end guiding element 14 is directed to discarded selvedge coiler device etc. through above-mentioned yarn guiding part.Each main part 21 of a pair of lifting arm 20 is leaning on rear side to have the maintaining part 21h of each end that keeps above-mentioned end guiding element support column 5 respectively than roller auxiliary section 21a.Maintaining part 21h has the U shaped sections of last side opening, and embeds the support column sleeve 15 of the U shaped sections that has last side opening equally.Each end of end guiding element support column 5 has two planes that are parallel to each other through Milling Process, and end guiding element support column 5 is fixed on the support column sleeve 15 and it can not be rotated.
Below, in order to change warp thread spool 2, use device for lifting reverse roller 40 of the present invention to promote reverse rollers 4 and end guiding element support column 5 and describe up to the operation that holds them in retreating position.Though this a series of operation can be undertaken by two people, for saving manpower, undertaken by a people usually, operate to 20 pairs of looms of a pair of lifting arm, one side, one side.
The lifting arm 20 that is in the position in the loom running with regard to Fig. 2 unclamps bolt 17, the both sides of loom all removed main part 21 fastening of reverse rollers support 3 and lifting arm 20.Main part 21 can be the center swing with pin 23 just.
Subsequently,, make handle portion 22, make the 21b of the fastening portion butt of handle portion 22 and main part 21, and handle portion 22 is engaged with main part 21 by means of the 21b of fastening portion to the direction rotation of leaving from warp thread spool 2 with respect to main part 21.Stoped the relative rotation of handle portion 22 with main part 21.Therefore; Handle portion 22 is further rotated to the direction of leaving from warp thread spool 2, when keeping fastening state and making handle portion 22 rotations, the lifting arm 20 that main part 21 and handle portion 22 become one each other; As shown in Figure 3, swing from the direction that warp thread spool 2 leaves for middle mind-set with pin 23.The roller auxiliary section 21a of main part 21 is through cooperating with jut 4aa butt and with jut 4aa, thereby promotes reverse rollers 4, and bearing 13 is broken away from from bearing support block 3b.And then roller auxiliary section 21a is through the reverse rollers 4 after maintenance breaks away from from bearing support block 3b in the swing process of lifting arm 20 with cooperating of jut 4aa.
Because to loom one side one side ground operation lifting arm 20, thereby reverse rollers 4 promotes with the state that tilts.For the inclination of the reverse rollers 4 that allows to cause, at jut 4aa and let and be provided with suitable gap between the sleeve 31 of the roller auxiliary section 21a that this jut 4aa passes because of ground operation to lifting arm 20 1 sides one side.
In this swing process of lifting arm 20, be fulcrum F with pin 23, be application point L with butt position with the jut 4aa of roller auxiliary section 21a, and on handle portion 22, to use hand push to press part to form by lifting arm 20 as the lever of force E.As shown in Figure 3, fulcrum F, application point L and force E are except being located substantially on the straight line each other, and fulcrum F and force E are positioned at an opposite side each other across application point L.Therefore; The lever ratio of the lever of representing with the formula of the length between the length between fulcrum F and the force E/fulcrum F and the application point L is then greater than 1; Except operator's increase is applied to the power on the E of force and acts on the application point L; Even the lever ratio of lever is identical, also can the interval of the force E of the application point L of roller auxiliary section 21a and handle portion 22 be shortened as far as possible, can shorten the length of handle portion 22.In other words, the length that does not change handle portion 22 just can add the lever ratio of big lever, and the degree that just can will increase active force further strengthens.With regard to the device for lifting reverse roller 40 of this embodiment, above-mentioned lever ratio is about 2.4, and the degree that increases active force is above 2 times.Therefore, in order to promote reverse rollers 4 and end guiding element support column 5, the power that the operator is applied on the handle portion 22 can be minimum power, has both suppressed the lengthening of handle portion 22, has also improved operation property.
Backing pin 26 is along with the swing of lifting arm 20, the sliding contact surface 3f sliding-contact of the lateral surface 3d of its front end edge reverse rollers support 3.When making lifting arm 20 swing to position shown in Figure 4, the front end of backing pin 26 just breaks away from from reverse rollers support 3.If backing pin 26 breaks away from from reverse rollers support 3, then back-up ring 29 to the inside direction move to the position with the lateral surface 21d butt of main part 21, and outstanding and also more outstanding than sliding contact surface 3f from medial surface 21e.If leave handle portion 22 after backing pin 26 is given prominence to, then lifting arm 20 is owing to gravity and in the other direction, promptly to the direction swing near warp thread spool 2.But, the auxiliary section 3g butt that lifting arm 20 forms from the ledge of the medial surface 21e of the front end of backing pin 26 and trailing flank at the lateral surface 3d of the base portion 3a that is connected reverse rollers support 3 and medial surface 3e, backing pin 26 cooperates with reverse rollers support 3.Lifting arm 20 cooperates through reverse rollers support 3 and the backing pin that is kept 26, and has stoped the swing that causes because of gravity.Thus, a side of reverse rollers 4 and end guiding element support column 5 just remains on and warp thread spool 2 hands-off retreating positions along ground handling.Reverse rollers 4 remains on retreating position through operation lifting arm 20 similarly with the opposite side of end guiding element support column 5.What Fig. 4 represented is to make handle portion 22 rotations and folding, can be not side-prominent backward, do not become the state of the obstacle of changing warp thread spool 2.
After the replacing end of job of warp thread spool 2, return to the loom state in when running in order to make lifting arm 20, the elastic force through antagonism spring 28 then, tractive handgrip 27 and backing pin 26 is retreated, thus remove cooperating of backing pin 26 and reverse rollers support 3.
Lifting arm 20 is through swinging to the direction near warp thread spool 2 owing to gravity with reverse rollers 4, end guiding element support column 5; The bar holddown groove 21g of main part 21 is contacted with bolt 17; The original position when thereby lifting arm 20 just returns to the loom running, i.e. position of readiness.Tighting a bolt after 17, reverse rollers support 3 is fastening with the main part 21 of lifting arm 20.Like this, return in the process of position of readiness at lifting arm 20, reverse rollers 4 descends and bearing 13 automatically is placed on the bearing support block 3b, the state when reverse rollers 4 just returns to rotatable loom running.
In this embodiment, bearing support block 3b is outstanding from the medial surface 3e of the base portion 3a of reverse rollers support 3, and outstanding from the medial surface of frame.But bearing support block 3b also can be outstanding from the lateral surface of frame.In this case; Erect the lateral surface that is arranged on frame though support the pin 23 of lifting arm 20; But through pin 23 is reached than bearing support block 3b more in the outer part; Then both can support lifting arm 20, and jut that also can be through the through hole with pin 23 is set also makes this jut outstanding to the inside and lifting arm 20 is supported on the frame on lifting arm 20.In lifting arm 20; Though jut is supported on than bearing support block 3b more swingably; But this occasion; The roller auxiliary section 21a that also will cooperate with the jut 4aa of reverse rollers 4 is supported on the outside swingably from bearing support block 3b, and lifting arm 20 is supported on the outside swingably from bearing support block 3b.In these cases; For fear of because the collision that the warp thread spool 2 spool transfer car(buggy) operating mistake when changing produces; Frame preferably except on the fabric width direction to be provided with the bearing support block 3b at interval fully with warp thread spool 2, also preferably the fulcrum branch of supporting pin 23 is arranged on the position of more leaning on the top than the position of the warp thread spool 2 in the carrying.
In this embodiment, the pin 23 of the fulcrum that forms lifting arm 20 erect be arranged on the lateral surface 3d of reverse rollers support 3, and be arranged on the lateral surface of frame.But pin 23 also can be erect the medial surface 21e that is arranged on lifting arm 20, and this occasion has the through hole of pin 23 on the lateral surface 3d of reverse rollers support 3.
In this embodiment, the roller auxiliary section 21a that on the main part 21 of lifting arm 20, is provided with is by forming from the through hole of lateral surface 21d arrival medial surface 21e and the sleeve 31 that is pressed into this through hole, and sleeve 31 has the through hole that lets jut 4aa pass.Roller auxiliary section 21a cooperates with jut 4aa in the swing process of lifting arm 20; Bearing 13 is broken away from from bearing support block 3b; Reverse rollers 4 after simultaneously bearing 13 keeps breaking away from from bearing support block 3b, and in the swing process of the retreating position of reverse rollers 4 and all keep reverse rollers 4 on the retreating position.But roller auxiliary section 21a also can be formed by groove.For example; Roller auxiliary section 21a is formed by the U font groove of reverse rollers 4 one side openings; And in the swing process of lifting arm 20, cooperate with jut 4aa; When bearing 13 is broken away from from bearing support block 3b, in the swing process of retreating position and on the retreating position, all keep reverse rollers 4 that it can not fallen.
In this embodiment, axial region 4a forms jut 4aa with the axis that comprises axial region 4a.But jut 4aa also can form through off-centre, and not necessarily forms with the axis that comprises axial region 4a.
In this embodiment, the 21b of fastening portion that on the main part 21 of lifting arm 20, is provided with by with main part 21 be that same parts form, still, the 21b of fastening portion also can form with the parts with main part 21 splits such as pin.In addition, fastening portions such as pin can be set on handle portion 22 also, for example, make on handle portion 22 the fastening portion of the pin that is provided with etc. and warp thread spool 2 contacts side surfaces of main part 21.
In this embodiment, lifting arm 20 is installed in handle portion 22 on the main part 21 through pin 24 usually, need not carry out special keeping to handle portion 22.But, also can be arranged to and can handle portion 22 be pulled down.For example, pin is set and on main part 21 or handle portion 22, pin-and-hole is set, just when operation lifting arm 20, will sell in the insertion pin-and-hole and handle portion 22 is installed on the main part 21 in handle portion 22 or main part 21.In this case, make polygonal cross-section, for example quadrangular section, just can omit the counterrotating fastening portion that limits handle portion 22 and main part 21 through selling with pin-and-hole.
In this embodiment, lifting arm 20 is formed by main part 21 and handle portion 22, is formed by mutual different independent parts.But lifting arm 20 also can be formed and carry out manual operation by the parts that both are made of one.
In this embodiment, the auxiliary section 3g that backing pin 26 cooperates is formed on the trailing flank of the lateral surface 3d that connects reverse rollers support 3 and medial surface 3e.But auxiliary section 3g also can utilize the end or connect lateral surface 3d and the pin through hole of medial surface 3e or sell through slot and be formed on the reverse rollers support 3.
In this embodiment, on the lifting arm 20 in lifting arm 20 and frame, be provided with backing pin 26 as the fastening parts.Backing pin 26 in the swing process of lifting arm 20 be arranged in the sliding contact surface 3f sliding-contact on the frame; Through outstanding at the retreating position of reverse rollers 4 and cooperates with auxiliary section 3g on being arranged on frame, thus the swing that causes by gravity of prevention lifting arm 20.But, also can be arranged on the frame and utilize spring members to lifting arm 20 reinforcings as the backing pin 26 of fastening parts.This occasion; Backing pin 26 its front ends in the swing process of lifting arm 20 be arranged in the sliding contact surface sliding-contact on the lifting arm 20; Through direction is outstanding and cooperates with auxiliary section on being arranged on lifting arm 20 laterally at the retreating position of reverse rollers 4, thus the swing that causes by gravity of prevention lifting arm 20.In addition; In order to make reverse rollers 4 return to original position; In order to remove cooperating of backing pin 26 and lifting arm 20, and the elastic force of antagonism spring members is backing pin 26 direction pushing to the inside, the position after then can making the front end of backing pin 26 retreat into than be arranged on sliding contact surface on the lifting arm 20 more to lean on.
In this embodiment, lifting arm 20 has handle portion 22 so that manual operation.But lifting arm 20 also can be swung through the drive unit with drivers such as motors.This occasion, lifting arm 20 can be omitted backing pin 26 grades and be used for lifting arm 20 is remained on the parts on the retreating position of reverse rollers 4.
The restriction of the embodiment that the present invention does not receive to be put down in writing as long as do not exceeding in protection scope of the present invention, can be carried out various changes.
Claims (5)
1. the device for lifting reverse roller of a loom; The left and right sides frame of loom has circular-arc bearing support block respectively; Be entrenched in around extension and be supported on the above-mentioned bearing support block from the bearing on the two ends of the reverse rollers of the warp thread of warp thread spool; Above-mentioned reverse rollers is promoted and remains on retreating position, it is characterized in that
A pair of jut that has the axial region that is arranged on the reverse rollers two ends and extend to axis direction from the fitting portion of above-mentioned bearing and a pair of lifting arm that is supported on the outside of above-mentioned bearing support block swingably respectively,
This a pair of lifting arm promotes and remains on retreating position through cooperating with above-mentioned a pair of jut with reverse rollers.
2. the device for lifting reverse roller of loom as claimed in claim 1 is characterized in that,
Lifting arm has the main part that cooperates with above-mentioned jut and is used for manually operated handle portion, and the position of the application point on the main part, the force on the handle portion and the fulcrum on the frame is that fulcrum and force are positioned at an opposite side each other across application point.
3. the device for lifting reverse roller of loom as claimed in claim 2 is characterized in that,
Fastening portion is arranged on either party in main part and the handle portion, and handle portion is arranged to main part rotation relatively, and handle portion is passed through to rotating away from the direction of warp thread spool and cooperating with main part by means of fastening portion.
4. like the device for lifting reverse roller of any one described loom in the claim 1 to 3, it is characterized in that,
Be provided with in lifting arm and frame either party and utilize spring members to the afterburning fastening parts of the opposing party; The swing of the lifting arm of these fastening parts when promoting reverse rollers and with above-mentioned the opposing party's sliding-contact, when reverse rollers arrives retreating position, just give prominence to from an above-mentioned side.
5. like the device for lifting reverse roller of any one described loom in the claim 1 to 3, it is characterized in that,
A pair of lifting arm has the maintaining part of the end that keeps end guiding element support column respectively, and this end guiding element support column is positioned at the ratio inverse roller and more disposes abreast by rear side and with reverse rollers, and extends along whole fabric width.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008171903 | 2008-07-01 | ||
| JP2008171903A JP5189907B2 (en) | 2008-07-01 | 2008-07-01 | Loom back roll lifting device |
| JP2008-171903 | 2008-07-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619518A CN101619518A (en) | 2010-01-06 |
| CN101619518B true CN101619518B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101398015A Active CN101619518B (en) | 2008-07-01 | 2009-06-30 | Device for lifting reverse roller of loom |
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| JP (1) | JP5189907B2 (en) |
| CN (1) | CN101619518B (en) |
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| KR102425826B1 (en) | 2014-12-30 | 2022-07-28 | 삼성전자주식회사 | Electrolyte for lithium secondary battery and lithium secondary battery employing the same |
| CN105671724B (en) * | 2016-04-13 | 2017-09-29 | 常州信息职业技术学院 | A kind of solution of warp thread twists device |
| CN110396755A (en) * | 2019-08-26 | 2019-11-01 | 际华三五四二纺织有限公司 | A kind of used in jet loom back rest activity roll bearing seat |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2712957Y (en) * | 2003-10-14 | 2005-07-27 | 王志坚 | External electronic let-off mechanism for flat chafer fabric rapier loom |
| CN1995517A (en) * | 2006-12-19 | 2007-07-11 | 邹荣金 | Body warp, warp letting off device of towel rapier loom |
| CN101736497A (en) * | 2008-11-10 | 2010-06-16 | 津田驹工业株式会社 | Let-off device of loom using positive easing mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3261747B2 (en) * | 1992-07-24 | 2002-03-04 | 株式会社豊田自動織機 | Warp tension control device of loom |
| JPH09111600A (en) * | 1995-10-12 | 1997-04-28 | Toyota Autom Loom Works Ltd | Back roller lift in loom |
-
2008
- 2008-07-01 JP JP2008171903A patent/JP5189907B2/en active Active
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- 2009-06-30 CN CN2009101398015A patent/CN101619518B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2712957Y (en) * | 2003-10-14 | 2005-07-27 | 王志坚 | External electronic let-off mechanism for flat chafer fabric rapier loom |
| CN1995517A (en) * | 2006-12-19 | 2007-07-11 | 邹荣金 | Body warp, warp letting off device of towel rapier loom |
| CN101736497A (en) * | 2008-11-10 | 2010-06-16 | 津田驹工业株式会社 | Let-off device of loom using positive easing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5189907B2 (en) | 2013-04-24 |
| JP2010013739A (en) | 2010-01-21 |
| CN101619518A (en) | 2010-01-06 |
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