CN101906689A - Cam opening device of loom - Google Patents

Cam opening device of loom Download PDF

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Publication number
CN101906689A
CN101906689A CN2010101975373A CN201010197537A CN101906689A CN 101906689 A CN101906689 A CN 101906689A CN 2010101975373 A CN2010101975373 A CN 2010101975373A CN 201010197537 A CN201010197537 A CN 201010197537A CN 101906689 A CN101906689 A CN 101906689A
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China
Prior art keywords
cam
opening
shaft
loom
framework
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CN2010101975373A
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Chinese (zh)
Inventor
深町淳史
清水信明
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Tsudakoma Corp
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Tsudakoma Industrial Co Ltd
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Publication of CN101906689A publication Critical patent/CN101906689A/en
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Abstract

The invention relates to a cam opening device of loom, which is object to realize opening amount adjusting facility, and realize long life of the bearing contained in the connecting mechanism (link mechanism) for connecting opening shaft and cam lever shaft applied in the situation of water spraying loom. The cam opening device includes: a plurality of opening shafts extending along the width direction of the loom beneath the harness frame; a cam driving device, provided corresponding to the cam shaft of built-in cam and each opening shaft, and provided in parallel extension with a plurality of cam lever shafts driven by cam rotation and the opening shaft. In the cam opening device of the link mechanism connecting the cam lever shaft and the opening shaft, the cam lever shaft extends to the external side of the loom frame so that the front end position of the cam lever shaft is more adjacent to the external side than the loom frame arranged on one side of the cam driving device, the link mechanism is configured to be more adjacent to external side than the loom frame and be more adjacent to external side than the cam driving device, and to connect the cam lever shaft and the opening shaft penetrating the loom frame.

Description

The cam opening device of loom
Technical field
The present invention relates to the cam opening device of loom, relate in particular to the cam opening device of following form, this cam opening device comprises: many opening shaft, and below heald frame, extend and be provided with accordingly with each of many heald frames along the width of loom; Cam driving gear is arranged on the side of left and right sides framework of loom, and with the camshaft of built-in cam and each opening shaft is provided with accordingly and the many cam lever shafts and the opening shaft that are driven by the cam rotation are extended abreast; And link mechanism, connect cam lever shaft and opening shaft.
Background technology
As the cam opening device of above-mentioned form, disclosed shedding motion in the patent documentation 1 (real fair-No. 026378 communique of Japan) is arranged.In this patent documentation 1 disclosed shedding motion, heald frame is connected with opening shaft (opening shaft) by connecting rod and opening bar.Opening shaft below the heald frame between the framework of the left and right sides of loom (than under by the fell side) be arranged to extend along the width of loom.In addition, the radical of opening shaft and heald frame number are provided with accordingly.And the connecting rod that is connected below the heald frame both ends of width is connected with the opening bar, and the relative opening shaft of this opening bar can not be assembled with the relative rotation.Adopt this structure, each heald frame supports the position of above-below direction by connecting rod and opening bar by the corresponding opening axle, is accompanied by rotatablely moving of opening shaft and direction motion up and down.
In patent documentation 1 disclosed shedding motion, adopt cam mechanism as the structure that is used to opening shaft is rotated.This cam mechanism constitutes as the active type cam mechanism, and comprises: a side of the loom frame about being arranged on goes up the rigid cam of the pair of cams dish formation of rotating driving by being supported and be accompanied by the rotation of camshaft by camshaft (camshaft); The fork-shaped cam link rod of the cam follower of the side face butt of support and each cam disc; And be fixed on cam lever shaft on the cam link rod with an end.Have, this cam mechanism is connected with opening shaft by constituting bindiny mechanism's (link mechanism) by the component-bar linkage that is fixed on a pair of bar on each of opening shaft and cam lever shaft and connects two bars again.And, constitute the active type cam opening device with this structure.
According to the structure of this cam opening device, be accompanied by the rotation of camshaft, the work that the cam link rod utilizes rigid cam is the center reciprocally swinging in order to the position of cam lever shaft, cam lever shaft carries out reciprocal rotational motion.And, accompany therewith, cam lever shaft and the reciprocal rotating drive of opening shaft quilt that is connected by bar and component-bar linkage, thus heald frame is in the above-below direction reciprocating motion.
In addition, in patent documentation 1 disclosed cam opening device, the end of the cam mechanism side of opening shaft is positioned at than loom frame (below, also abbreviate " framework " as) (longitude yarn row side) in the inner part.For this reason, cam lever shaft extends the inboard to loom from the position of cam link rod, and the end opposite with this cam link rod side extends to the position of end of opening shaft of the width of loom.Therefore, certainly, the bindiny mechanism of connection opening axle and cam lever shaft is positioned at the inboard of framework.
In addition, about the bindiny mechanism of connection opening axle and cam lever shaft, in the record of patent documentation 1, make with being fixed on component-bar linkage on two bars and be fastened on the structure of the bar on each of opening shaft and cam lever shaft.But in bindiny mechanism, the rotation that is accompanied by two axles owing to each bar and component-bar linkage angulation changes, thereby with regard to the structure that bar and component-bar linkage are fixed, can not adapt to this variation.Therefore, the general structure that connects each bar and component-bar linkage by bearing etc. rotationally that adopts.
In addition, according to the situation of loom, though occasion that need to adjust the opening amount is arranged, the occasion of said structure, general employing will connect the link position of the component-bar linkage of two bars and a side or two sides' bar and make adjustable structure.
Yet, in patent documentation 1 disclosed cam opening device, exist the adjustment of opening amount to be difficult to the problem of carrying out, and get involved the short problem of bearing life that is contained between bar and the component-bar linkage in the occasion that adopts water jet looms.
In detail, adjustment about the opening amount, though can be undertaken by the link position of change bar and component-bar linkage as mentioned above, but as patent documentation 1 disclosed structure, be positioned at the occasion of framework inboard in the bindiny mechanism that is made of bar and component-bar linkage, the operating personnel must enter into the framework inboard and carry out this adjustment operation.But, between the framework of the left and right sides of loom, have fabric and warp thread up, and exist across a plurality of parts such as beam between the framework of the left and right sides and opening shaft.Therefore, the operating personnel must adjust operation with the state that pierces the work posture difference under fabric and the warp thread, in addition, because working space also is subjected to above-mentioned a plurality of component limitations, thereby the non-constant of operation.
Have again,,, owing to splash from the water that Weft insertion nozzle sprays for picking, thereby be present in these regional parts and just be exposed in this water that splashes (water splashes) in the medial region of framework in the occasion of water jet looms.The occasion of patent documentation 1 disclosed shedding motion, because the bindiny mechanism of connection opening axle and cam lever shaft is present in the inboard of framework, thereby this bindiny mechanism also is exposed in the water that splashes, and gets involved to be contained in the contained bar of bindiny mechanism and the bearing between the component-bar linkage is influenced by it also.Concrete is that the occasion of bearing worsens lubricating status owing to being accompanied by entering of water, causes performance sharply to reduce, the lost of life.
Summary of the invention
So, the objective of the invention is to, in the cam opening device that has used aforesaid cam driving gear, realize the facilitation of opening amount adjustment and at the long lifetime of the contained bearing of bindiny mechanism's (link mechanism) of the connection opening axle of the occasion that is applied to water-jet loom and cam lever shaft.
In order to realize the foregoing invention purpose, the present invention is in the cam opening device of the loom of above-mentioned form, it is characterized in that, the cam lever shaft of cam driving gear extends to the outside of loom frame, so that its leading section is positioned at than the loom frame that cam driving gear one side is set in the outer part, link mechanism is configured in than loom frame in the outer part and than the cam of cam driving gear in the outer part, and connects cam lever shaft and connect the opening shaft of loom frame.
In addition, what is called of the present invention " outside " is meant a side of leaving from the central portion of the longitude yarn row of the width of loom.That is, the outside of so-called framework (cam) is meant the position with respect to the opposite side of longitude yarn row of framework (cam).Therefore, so-called " lateral direction " is meant the position of leaving from the central authorities of the longitude yarn row of the width of loom.In addition, " inboard " of the so-called framework of this specification be meant with above-mentioned opposite, i.e. the position of center one side of the close longitude yarn row of the width of loom.Explanation in passing, so-called " width of loom " is meant the parallel direction of width (length direction) with heald frame.(below, also abbreviate " width " as).
In addition, in cam opening device of the present invention, also can make following structure, promptly at the width of loom, at least a portion of cam driving gear is configured in inside of frame (scope of the width of framework).
Effect of the present invention is as follows.
According to the cam opening device of loom of the present invention, opening shaft is being provided with the outside that cam driving gear one side connects framework and is arranged to extend to framework.On the other hand, the cam lever shaft of cam driving gear extends to the lateral direction of width from the cam link rod with the cam butt, and its end is positioned at the outside of framework.Thus, the link mechanism of connection opening axle and cam lever shaft is made and is positioned at than framework and cam structure in the outer part.Therefore, adopt this structure, because the position of link mechanism, thereby needn't be subjected to the overslaugh that fabric exists and just can carry out the adjustment of opening amount in the outer part and than the cam box that is built-in with the cam mechanism that is made of cam and cam link rod in the outer part than framework as existing structure.Therefore, this adjustment operation can be carried out easily, improves operability.
In addition, according to said structure, in the occasion that cam driving gear is applied to water-jet loom, owing to link mechanism can not be exposed in the injection water that the picking that the medial region of loom is splashed is used, thereby the contained bearing of link mechanism can not be subjected to the influence of water.
Have, on the width of loom, because at least a portion of cam driving gear is configured in inside of frame, thereby the position of the leading section of cam lever shaft is positioned at the position near framework again.Therefore, compare with the outside that whole cam driving gear is arranged on framework, can be with the more close framework of link position (position of link mechanism) of opening shaft and cam lever shaft.Thus, owing to can shorten opening shaft from the outstanding length of framework, thereby in the outside of framework in the structure of connection opening axle and cam lever shaft, can shorten the total length of opening shaft as far as possible, can prevent reversing of opening shaft that the load because of harness motion causes etc.
Description of drawings
Fig. 1 is the stereogram at main position of the cam opening device of expression an embodiment of the invention.
Fig. 2 is the main cutaway view of the cam opening device of expression an embodiment of the invention.
Fig. 3 represents the broken section vertical view of the cam opening device of an embodiment of the invention.
Fig. 4 represents the stereogram of a part of the cam opening device of an embodiment of the invention.
Among the figure:
1-loom frame (framework), 2-heald frame, 3-cam opening device, 4-main shaft, 5-master's CD-ROM drive motor, the 5b-motor pulley, 6-bent axle, 6a-driving pulley, 6b-timing belt wheel (タ イ ミ Application グ プ one リ), the 7a-V band, 7b-is with synchronously, 10-opening shaft, 14-opening bar, the 14a-connecting rod, 20-cam driving gear, 21-cam lever shaft, 23-cam disc, 25-cam link rod, 27-camshaft, 27a-timing belt wheel, 29-cam box, the 30-link mechanism, 31-swing arm, 33-opening axostylus axostyle, 35-connecting rod.
The specific embodiment
Fig. 1-Fig. 4 represents an embodiment of the cam opening device of loom of the present invention, represents the periphery of the loom frame 1 on right side from the coiling unilateral observation loom of weaving cotton cloth.In addition, illustrated loom has four heald frames 2 and it is divided into each two two group, move up and down round about mutually by each group that makes heald frame 2 by cam opening device 3, thereby by means of not shown comprehensive (Integrated Fine-floss-silk) longitude yarn row by many warp thread (not shown) formation that is supported by each heald frame 2 is paid harness motion.
Cam opening device 3 has: with above-mentioned each each two opening shaft 10,10 that are provided with accordingly of organizing of heald frame 2; The cam driving gear 20 that is used for rotating drive opening shaft 10,10 promptly comprises the cam driving gear 20 of the two piece cam lever shafts 21,21 corresponding with each opening shaft 10,10; And a pair of link mechanism 30,30 that connects each opening shaft 10,10 and corresponding with it cam lever shaft 21,21.
Two opening shaft 10,10 be positioned at about above-below direction heald frame 2 below and be positioned at than heald frame 2 about fore-and-aft direction (warp thread direction) under be set up in parallel along the vertical direction by on the position of fell F side, and by a plurality of bearings of being set up in parallel at axis direction at the bearing housing 12a of the side of being fixed in framework 1 inboard and be fixed on the bearing housing 12b of side in framework 1 outside.That is, each opening shaft 10 is supported on the framework 1 freely by bearing housing 12a, 12b and a plurality of bearings rotation that is set up in parallel in each bearing housing 12a, 12b.
In addition, each opening shaft 10 is not only also supported by the bearing housing 12b that is located at the outside by be located at inboard bearing housing 12a with respect to framework 1 as mentioned above.That is, each opening shaft 10 connects framework 1, and is also supported in the outside of framework 1.Have, each opening shaft 10 is extended in the mode also more outstanding than the bearing housing 12b in the outside in the outside of framework 1 again.
Can not be assembled with opening bar 14 with the relative rotation by means of the key 10a that on each opening shaft 10, forms on each opening shaft 10 and on each the corresponding position at width and both ends heald frame 2.And, on each opening bar 14, standing and be provided with connecting rod 14a, the front end of connecting rod 14a is connected on the following connector 14b that is installed on heald frame 2.Therefore, each heald frame 2 is at axial both ends, utilizes the pair of openings bar 14 that is installed on the corresponding opening axle 10 and supports by means of connecting rod 14a.
Explanation in passing, in illustrated embodiment, if with four heald frames 2 from fell F side be made as successively first frame ..., the 4th frame, then the opening shaft 10 and first of upside, the 3rd frame are corresponding, opening shaft 10 and second, the 4th frame of downside are corresponding.Therefore, the first, the 3rd frame becomes one group of down motion in the same direction, and the second, the 4th frame becomes one group and moves up and down in the direction opposite with the first, the 3rd frame.In addition, the installation site of each opening shaft 10,10 of 14 pairs of upsides of opening bar and downside is set in the diverse location of width for every opening shaft 10.
Cam driving gear 20 comprises cam box 29 and to be contained in the pair of cams dish 23,23 in this cam 29 and the cam mechanism of the two cam link rods 25,25 by cam follower and two cam disc 23,23 butts.This cam mechanism is identical with above-mentioned patent documentation 1 disclosed cam mechanism basically.
Cam box 29 is the lid 29b formation of the casing 29a of コ font and the outer lateral side that is installed in this casing 29a by the section of the width that the side in the outside (the opposite side of longitude yarn row) of width is opened wide.In other words, the sidewall in the outside of the width of cam box 29 is formed by dismountable lid 29b.Have again, cam box 29 the lid 29b adjoining position with the side face of casing 29a have a plurality of installation portion 29c, 29c ....And, be contained in this cam box 29 in above-mentioned cam disc 23,23 and the cam link rod 25,25.
Cam disc 23,23 is supported by the camshaft 27 that extends at width and rotatably be supported on the cam box 29 in cam box 29.This camshaft 27 connects the lid 29b of cam box 29 and is provided with highlightedly from the lateral direction of cam box 29 to framework 1.And camshaft 27 is driven by the aftermentioned driving mechanism rotation of the leading section that is connected this outstanding side.
In addition, cam driving gear 20 has and is provided with accordingly with each of two opening shaft 10,10 and the cam lever shaft 21,21 of configuration side by side up and down in position that the ratio heald frame 2 of fore-and-aft direction also leaves fell F.Each cam lever shaft 21 extends abreast with camshaft 27 and is similarly rotatably supported by cam box 29 with camshaft 27 and be provided with highlightedly from cam box 29.And, on each cam lever shaft 21, can not be assembled with cam link rod 25 with the relative rotation.Explanation in passing, each cam link rod 25 forms by the base portion with through hole that cam lever shaft 21 inserts and is the pronged shape that a pair of arm of circular-arc extension constitutes along the rotational trajectory of cam disc 23 from base portion mutually round about, by means of at the end of each arm rotation cam follower and pair of cams plate 23,23 butts freely.
In the cam mechanism of this cam driving gear 20, utilize the rotation of the cam disc 23,23 of the rotation driving that is accompanied by camshaft 27, thereby drive each cam link rod 25 reciprocally swinging, driving cam bar axle 21 rotations thereupon.Therefore, this cam mechanism constitutes active type cam mechanism (rigid cam mechanism).
In addition, in illustrated embodiment, cam box 29 is at the width about loom, and its major part is arranged to be positioned at the scope of framework 1.In detail, be formed with the through hole that cam box 29 is embedded on the biside plate that is installed in inside and outside it in the position that cam box 29 is set of framework 1, by this through hole, cam box 29 is inserted into state setting on the framework 1 with embedding.
And cam box 29 is fixed on the framework 1 in installation portion 29c and with many screw members that the side plate spiral in framework 1 outside inserts by making the installation portion 29c that is arranged on the side face and be connected on the side in framework 1 outside and utilize intercalation.Therefore, the lid 29b of cam box 29 is positioned at the outside of framework 1, also is positioned at the outside of framework 1 from the ledge of outstanding camshaft 27 of the lid 29b of cam box 29 and cam lever shaft 21.In addition, in illustrated embodiment, because the size of the width of cam box 29 is bigger than the size of the width of framework 1, so even also outstanding from framework 1 at inboard cam box 29.That is, in illustrated embodiment, cam box 29 is in the state that width connects framework 1.In addition, in be contained in cam disc 23,23 in this cam box 29 in illustrated embodiment, on about width than the central portion of cam box 29 slightly by the configuration of longitude yarn row one side, and be configured to be positioned at the scope of framework 1.
Cam driving gear 20 from the leading section (end of a longitude yarn row opposite side) of outstanding each cam lever shaft 21 of cam box 29 at ledge, be connected with corresponding opening axle 10 by link mechanism 30.That is, the outside that each link mechanism 30 is configured in framework 1 connects cam lever shaft 21 and opening shaft 10 in this position than cam box 29 in the outer part promptly.In addition, in illustrated embodiment, connect up and down each cam lever shaft 21 and two link mechanisms 30,30 of opening shaft 10 be provided with symmetrically at above-below direction.
Each link mechanism 30 is that main body constitutes with following member, that is: with respect to cam lever shaft 21 and the swing arm 31 that can not fix with the relative rotation on above-mentioned leading section; With respect to opening shaft 10 and the opening axostylus axostyle 33 that on the part also more outstanding, can not fix with the relative rotation than bearing housing 12b; And the connecting rod 35 that connects swing arm 31 and opening axostylus axostyle 33.In addition, be in roughly the same position at the swing arm 31 in the outside of framework 1 and the position of opening axostylus axostyle 33 at the width of loom.
Swing arm 31 and opening axostylus axostyle 33 are fixed on corresponding cam lever shaft 21 and the opening shaft 10 with being formed at the opposing party's keyway and utilizing what is called to split fastening (cutting Parties め) structure by means of the key that is formed at a side at the one end.And the other end of swing arm 31 and opening axostylus axostyle 33 forms pronged shape in order to admit connecting rod 35.Have again, form through hole, in this through hole, embed bearing (not shown) is installed at the both ends of connecting rod 35.
The fork-shaped portion of opening axostylus axostyle 33 forms and admits and the through hole of the connecting pin 33a that is connected usefulness of connecting rod 35, and has and be used for fixing the fastening structure of splitting of connecting pin 33a.And, admitting in the fork-shaped portion of opening axostylus axostyle 33 to make under the state of an end of connecting rod 35 makes connecting pin 33a be inserted into the state of through hole of an end of the through hole of fork-shaped portion and connecting rod 35, utilization is split the fastening relative opening axostylus axostyle 33 of connecting pin 33a that makes and can not be fixed with the relative rotation, thereby the bearing that an end that becomes opening axostylus axostyle 33 and connecting rod 35 is contained in by means of connecting pin 33a and embedding in the through hole of an end of connecting rod 35 rotates the state that connects freely.
In addition, the fork-shaped portion of swing arm 31 is formed on the slotted hole that length direction extends, and admits the connecting pin 31a that is connected usefulness with connecting rod 35 in this slotted hole.Connecting pin 31a makes the form of bolt shape, and an end forms bolt head and other end formation outer screw section.And, connecting pin 31a is under the state of the slotted hole of the fork-shaped portion that is inserted into swing arm 31, utilize bolt head and nut to clamp the state of swing arm 31 (fork-shaped portion) by being threaded to make, swing arm 31 is positioned with this fastening force with nut (not shown) thereby with the outer screw section of the other end.Therefore, connecting pin 31a variable position in the scope of the slotted hole of swing arm 31.
And, be contained at the other end under the state of fork-shaped portion of swing arm 31 connecting rod 35, make the state in the slotted hole of the other end that makes connecting pin 31a insert the slotted hole of fork-shaped portion and connecting rod 35, by the relative swing arm 31 of connecting pin 31a is positioned, thereby an end of swing arm 31 and connecting rod 35 becomes by means of connecting pin 31a and embedding are contained in the bearing in the through hole of an end of connecting rod 35 and rotates the state that connects freely.In addition, thus the fixed position of swing arm 31 is adjusted the link position of swing arm 31 and connecting rod 35 by change connecting pin 31a in the scope of slotted hole.
The above-mentioned driving mechanism that is used to rotate drive cam shaft 27 will be used to rotate the main CD-ROM drive motor 5 of driving main shaft 4 as drive source.In illustrated embodiment, this main CD-ROM drive motor 5 utilize bracket etc. be arranged on framework 1 above.In addition, bent axle 6 utilizes the bearing rotation to be supported on freely on the framework 1 under the state that connects framework 1.And main shaft 4 utilizes shaft coupling 4a can not be connected with the relative rotation with bent axle 6 in the inboard of framework 1.
In illustrated structure, on the output shaft 5a of main CD-ROM drive motor 5, motor pulley 5b is installed, on the other hand, driving pulley 6a is installed in the end in framework 1 outside of bent axle 6.Have, motor pulley 5b and driving pulley 6a are by being connected around hanging over two V band 7a on the belt wheel again.According to this structure, the rotation of the output shaft 5a of main CD-ROM drive motor 5 is delivered to bent axle 6 by motor pulley 5b, V band 7a and driving pulley 6a, and bent axle 6 and main shaft 4 are rotated driving by main CD-ROM drive motor 5.
In addition, on driving pulley 6a, timing belt wheel 6b is being installed with framework 1 an opposite side.This timing belt wheel 6b utilizes the screw member that spiral inserts around the through hole that holds bent axle 6 front ends of driving pulley 6a, and driving pulley 6a coaxially and can not fix with the relative rotation relatively.On the other hand, the leading section at the camshaft 27 of cam driving gear 20 is equipped with timing belt wheel 27a.And timing belt wheel 6b and timing belt wheel 27a are by being connected around the synchronous band 7b that hangs on two belt wheels.According to this structure, be accompanied by main shaft 4 and be rotated driving by main CD-ROM drive motor 5, the rotation of driving pulley 6a is by timing belt wheel 6b, be with 7b and timing belt wheel 27a to be delivered to camshaft 27 synchronously, and camshaft 27 is driven in rotation.
In the cam opening device 3 of the loom of above explanation, the cam box 29 of cam driving gear 20 is arranged to, and is positioned at the scope of framework 1 in its major part of width of loom, and the end nipple of the opposite side of longitude yarn row is for the outside of framework 1.And, be contained in the cam box 29 and be positioned at the cam 23 of scope of framework 1 of width of loom and the cam lever shaft 21 that 25 rotations of cam link rod drive is arranged to by interior, extend to the lateral direction of framework 1 position of the cam link rod 25 in the scope of framework 1, and outstanding from cam box 29.On the other hand, the opening shaft 10 that is connected with heald frame 2 connects framework 1 in a side that is provided with cam driving gear 20, and extends in the roughly the same position of the leading section with cam lever shaft 21 of width.
Therefore, cam lever shaft 21 and opening shaft 10 promptly can be connected than the position of cam box 29 (in be contained in the cam box 29 cam 23) by framework 1 outside in the outside of framework 1.Thus, the link mechanism 30 that connects cam lever shaft 21 and opening shaft 10 can be configured in the outside of framework 1 (cam box 29), in the occasion of water-jet loom, can get rid of influence to bearing of link mechanism 30 etc. because of being accompanied by that water that picking splashes in the medial region of framework 1 causes.
In addition, because link mechanism 30 is configured in the outside of framework 1 (cam box 29), thereby can be present in the operation that obstruction ground such as the fabric of 1 of left and right sides framework and other parts are used to adjust the opening amount, promptly can carry out the change operation of the link position of swing arm 31 and connecting rod 35, these operations compared with prior art can more easily be carried out.
In addition, in the embodiment described above, cam opening device 3 as the loom of prerequisite, though have two opening shaft 10,10 and cam lever shaft 21, the cam link rod 25 corresponding with each opening shaft 10, and utilize these parts that 4 heald frames 2 are paid harness motion, but the cam opening device as prerequisite of the present invention is not limited to such structure, the structure of heald frame that also can adopt the opening shaft utilized more than three and the cam lever shaft corresponding with it to wait to drive more than three and so on.In addition, in cam opening device of the present invention, the whole directions laterally that are not limited to many cam lever shafts are extended, and can also be that a part is extended to the inside.That is, in cam opening device of the present invention, at least one in the many cam lever shafts, if just extend to the outside of loom frame that its leading section is positioned at is more passable in the outer part than framework.
In addition, in the above-described embodiment, cam driving gear 20 is configured to, and the major part of cam box 29 is positioned at the scope of framework 1 on the width of loom, and only the part of cam box 29 protrudes in the outside of framework 1.But cam driving gear of the present invention is not limited to such configuration, also can make the structure that whole cam box is configured in the framework outside.In addition, also can be configured to, cam box whole are positioned on the width of loom than the lateral surface of framework (longitude yarn row side) (whole situations that are configured in the framework inboard that also comprise cam box) in the inner part, and only cam lever shaft protrudes in the outside of framework.
But, cam box is being configured in the occasion in the framework outside because the front position (link position of link mechanism) of cam lever shaft is in apart from the farther position of framework, thereby thereupon must the lengthening opening shaft from the outstanding length of framework.Its result, the length of opening shaft is elongated, and reversing of being easy to generate that load because of harness motion causes of becoming etc. might produce the problems such as opening amount that can not obtain expecting.Therefore, preferably the front position of cam lever shaft is near framework, cam box with its outside that all is configured in framework is compared, preferably be configured to the scope that on the width of loom at least a portion is positioned at framework.
On the other hand, for the occasion that cam box is configured in the inboard of framework, since more in the occasion that concerns difficulty that the space is set of framework inboard, thereby might bring restriction to the space that is provided with of other parts and device.Therefore, even consider from the aspect, space is set, also preferably at least a portion of cam box is positioned at the scope of framework on the width of loom.
In addition, cam opening device of the present invention is not limited to water-jet loom, also can be applied to other shuttleless loom.
Have, the present invention also is not limited to any embodiment of above explanation again, as long as in not exceeding aim scope of the present invention, can carry out various changes.

Claims (2)

1. the cam opening device of a loom comprises: below heald frame along the width of loom extend and with each many opening shaft that are provided with accordingly of many heald frames; One side of the loom frame about being arranged on, and with the camshaft of built-in cam and each opening shaft is provided with accordingly and many cam lever shafts being driven by above-mentioned cam rotation and above-mentioned opening shaft are provided with extending in parallel cam driving gear; And the link mechanism that connects above-mentioned cam lever shaft and above-mentioned opening shaft, it is characterized in that,
Above-mentioned cam lever shaft extends so that its leading section is positioned at than the above-mentioned loom frame that is provided with above-mentioned cam driving gear one side in the outer part to the outside of above-mentioned loom frame,
Above-mentioned link mechanism is configured in than above-mentioned loom frame in the outer part and than the above-mentioned cam of above-mentioned cam driving gear in the outer part, and connects above-mentioned cam lever shaft and connect the above-mentioned opening shaft of above-mentioned loom frame.
2. the cam opening device of loom according to claim 1 is characterized in that, above-mentioned cam driving gear its at least a portion on the width of loom is configured in the inside of above-mentioned loom frame.
CN2010101975373A 2009-06-08 2010-06-03 Cam opening device of loom Pending CN101906689A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-136932 2009-06-08
JP2009136932A JP2010281018A (en) 2009-06-08 2009-06-08 Cam shedding device of loom

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CN101906689A true CN101906689A (en) 2010-12-08

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CN2010101975373A Pending CN101906689A (en) 2009-06-08 2010-06-03 Cam opening device of loom

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Application publication date: 20101208