CN101310060A - Process and apparatus for producing yarn and gland packing - Google Patents
Process and apparatus for producing yarn and gland packing Download PDFInfo
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- CN101310060A CN101310060A CNA2006800429129A CN200680042912A CN101310060A CN 101310060 A CN101310060 A CN 101310060A CN A2006800429129 A CNA2006800429129 A CN A2006800429129A CN 200680042912 A CN200680042912 A CN 200680042912A CN 101310060 A CN101310060 A CN 101310060A
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Abstract
A process for yarn production by which a yarn comprising a cylindrical member obtained by weaving or knitting a fibrous material and expanded graphite packed as a base in the cylindrical member can be made practically usable at low cost and the yarn can be produced with excellent productivity. The process, which is for producing a yarn comprising a cylindrical member 3 obtained by weaving or knitting a fibrous material 2 and expanded graphite packed therein, comprises a thinly cutting step s in which an expanded-graphite sheet 9 being continuously fed in the state of having a given width is continuously cut into a small width in the width direction for the sheet and a feeding/packing step k in which the strip-form expanded graphite material 4 produced in the thinly cutting step s is guided and fed to and packed into the cylindrical member 3.
Description
Technical field
The present invention relates to a kind of manufacture method, manufacturing installation and gland packing (Gland Packing) of yarn, at length say the gland packing that relates to employed yarn De System making method, System manufacturing apparatus in a kind of gland packing, banded sealing gasket, the fire-resistance cloth etc. and use the made yarn of Gai System making method at Weaving type.
Background technology
As about using the gland packing in the axle envelope portion of fluid machine etc. or the conventional art of the yarn (Weaving type) of use in above-mentioned gland packing, shown in patent documentation 1, patent documentation 2, expanded graphite is used as method that stock uses by known.The yarn of using as gland packing is disclosed in these above-mentioned patent documentations 1,2, above-mentioned yarn is to make in the mode of the expanded graphite thin plate of filling strip in cartridge, and above-mentioned cartridge forms by braiding (knitting or tubular knitted etc.) fibrous material.And, (for example process or weave by using threads to twist thread; Use 8 bursts of angles of 8 weaving threads to compile) make gland packing, above-mentioned yarn is made as above above-mentionedly.
Use the conventional art of the yarn of this expansion of structure graphite system, because the periphery of the basic material of expanded graphite forms with strengthening the wire rod braiding and covering, so by weaving these plurality of yarns when making gland packing, by strengthening wire rod braiding cartridge that forms and the tensile force that results from yarn or twisting resistance antagonism, play the effect of the expanded graphite meterial fracture that prevents in its cartridge.
But, preparation method as above-mentioned yarn, shown in patent document 3 (with reference to Fig. 1), only disclose the preparation method of the expanded graphite of input side's strip in the cartridge that is configured on the above-below direction or, in fact do not relate to and how to produce expeditiously as the idea of device.
Patent document 1:JP spy opens clear 63-1863 communique
Patent document 2:JP spy opens flat 6-27546 communique
Patent document 3:JP spy opens communique No. 2562603
Summary of the invention
The technical problem that solves
The objective of the invention is to realize and provide a kind of manufacture method or manufacturing installation of the yarn that can produce with high production rate, so that actually can use yarn with cheapness, above-mentioned yarn is to make by filling in compiling or knit the cartridge that the dimension material makes as the mode of the expanded graphite of stock, promptly realizes and provide the manufacture method and the manufacturing installation of yarn.In addition, its purpose is to obtain using by the preparation method of the yarn after improving or the production gland packing of installing the high efficiency of the yarn of making.
The technical scheme of dealing with problems
The effect of invention
Invention according to technical scheme 1, because comprise the operation of cutting off the expanded graphite meterial that forms little width by the expanded graphite thin plate that will have Rack along its width, so can make yarn continuously by the supply filling work procedure that above-mentioned expanded graphite meterial is supplied in the cartridge simultaneously by continuing to fritter the operation expanded graphite meterial of the side's of making strip continuously.That is, can be as the method for producing yarn that is fit to produce in batches.Because the expanded graphite thin plate of strip has the TENSILE STRENGTH of the width characteristic higher than the TENSILE STRENGTH of its length direction, so compare the high advantage of mechanical strength with following method with yarn, this method for example is meant, by the expanded graphite thin plate is cut off along its length direction, make narrower strip expanded graphite meterial, and be supplied to the method in the cartridge.
Also have, because under the situation about weaving considering twisted warp yarn etc., because expanded graphite is tensible hardly, so state in the use under the situation of narrower strip expanded graphite meterial, can only cut off the corresponding above-mentioned situation of expanded graphite meterial, but the expanded graphite meterial of the present invention side of being strip, stagger each other by adjacent expanded graphite meterial and move to follow the trail of flexural deformation, therefore, has the advantage that the problem that fractureed can not take place.Its result, can realize and provide a kind of manufacture method of yarn, when the manufacture method of this yarn can make the yarn of making as the expanded graphite of basic material by filling in the cartridge of volume or the manufacturing of textured fiber material become to the favourable structure of its mechanical property, make it possible to reality and use yarn, and can make yarn with high efficiency with cheapness.
According to technical scheme 2, in frittering operation, if with the expanded graphite thin plate by frittering with corresponding the moving up and down of thin plate face of the cutter blades of extending to its width, then only need the simple reciprocating motion of cutter blades, not only can be with the expanded graphite meterial of the expanded graphite thin plate continuous cutting-off side of being strip, and can access and be fit to the operation of frittering produced in batches.
According to technical scheme 3, if the expanded graphite meterial of the square strip that the use funnel will be made is supplied in the cartridge as filling work procedure, the action that then only utilizes the expanded graphite meterial that fritters to fall just can provide a kind of manufacture method of filling of high efficiency cheapness in cartridge.
According to technical scheme 4, because expanded graphite meterial according to the cut-out sequentially feeding that fritters operation to cartridge, so utilize from the cut-out of frittering operation and move the interval of cut-out action next time, just can set the length that staggers of the adjacent expanded graphite meterial end position each other when being supplied to cartridge, i.e. the amount of staggering.By this mode, just do not need the large-scale device that the special offset amount is set operation is set in addition, expanded graphite meterial is supplied in the cartridge with the amount of staggering of regulation.
According to technical scheme 5, by regulate to the feed speed that fritters the expanded graphite thin plate that operation supplies with and/or move the stand-by time of cutting off action next time, can set the amount of staggering of the width dimensions or the adjacent expanded graphite meterial end position each other of expanded graphite meterial arbitrarily from the cut-out of cutting off the expanded graphite thin plate.By this mode, just do not need to be provided with in addition the large-scale equipment that the special offset amount is set operation, a kind of guiding filling work procedure with cheap and simple sets the expanded graphite meterial of supplying with arbitrarily in cartridge the amount of staggering, the preparation method of yarn not only convenient but also simple to operate just can be provided.
According to technical scheme 6,, can be configured to the gland packing of good airproof performance by the yarn of arbitrary action effect of performance technique scheme 1～5.
According to technical scheme 7, because comprise the device that cuts off the expanded graphite meterial that forms little width by the expanded graphite thin plate that will have Rack along its width, so can and fritter mechanism's expanded graphite meterial of the side's of making strip continuously by the continuous service conveying mechanism, can make yarn continuously by the supply filling work procedure that above-mentioned expanded graphite meterial is supplied in the cartridge simultaneously.That is, can be as the yarn manufacturing installation that is fit to produce in batches.The width of the expanded graphite thin plate of strip is compared the characteristics with high-tensile strength with its length direction, so compare with following method and to have the advantage that can access the yarn of high mechanical properties as yarn, promptly, for example by the expanded graphite thin plate is cut off the expanded graphite meterial of making narrower strip along its length direction, and be supplied to the method in the cartridge.
Also have, because under the situation about weaving considering twisted warp yarn etc., because expanded graphite is tensible hardly, so under the situation of using narrower strip expanded graphite meterial, can only cut off the corresponding above-mentioned situation of expanded graphite meterial, but the expanded graphite meterial of the present invention side of being strip, stagger each other by adjacent expanded graphite meterial and move to follow the trail of flexural deformation, therefore, has the advantage that the problem that fractureed can not take place.Its result, can realize and provide a kind of manufacture method of yarn, when the manufacture method of this yarn can make the yarn of making as the expanded graphite of basic material by filling in the cartridge of volume or the manufacturing of textured fiber material become to the favourable structure of its mechanical property, make it possible to reality and use yarn with cheapness, and can be with the manufacturing yarn of high efficiency.
According to technical scheme 8, if adopt unwinding by drum to rotate that supplying with reels is installed in the structure of the expanded graphite thin plate on the drum that rotates freely, just can hold a large amount of expanded graphite thin plates, be applicable to the rational mechanism that produces in batches and can constitute less expensively thereby the expanded graphite feed mechanism is become.According to technical scheme 9,, then can make conveying mechanism have not only simple in structure but also conveying function accurately if with pair of rolls clamping expanded graphite thin plate and drive at least one roller of rotation.
According to technical scheme 10, if with the expanded graphite thin plate by frittering with corresponding the moving up and down of thin plate face of the cutter blades of extending to its width, then only need the simple reciprocating motion of cutter blades, not only can be with the expanded graphite meterial of the expanded graphite thin plate continuous cutting-off side of being strip, and can access and be fit to the mechanism of frittering that produces in batches.Invention according to technical scheme 11, if the expanded graphite meterial of the square strip that the use funnel will be made is supplied in the cartridge as filling work procedure, the action that then only utilizes the expanded graphite meterial that fritters to fall just can provide a kind of guiding feed mechanism of filling of high efficiency cheapness in cartridge.
According to technical scheme 12, because expanded graphite meterial according to the cut-out sequentially feeding that fritters mechanism to cartridge, so utilize from the cut-out of frittering mechanism and move the interval of cut-out action next time, just can set the length that staggers of the adjacent expanded graphite meterial end position each other when being supplied to cartridge, i.e. the amount of staggering.By this mode, just do not need to be provided with in addition the large-scale structure of special offset variable setting apparatus, expanded graphite meterial is supplied in the cartridge with the amount of staggering of regulation.
In addition, according to technical scheme 13, by regulating conveying mechanism and the inscape of frittering mechanism, can set the width dimensions or the amount of staggering of expanded graphite meterial arbitrarily, thereby simultaneously easily, as technical scheme 14, use the yarn of making by the manufacturing installation of technical scheme 7～13 inventions, the gland packing that can make good airproof performance.
Description of drawings
Fig. 1 is the schematic diagram of expression method for producing yarn.
Fig. 2 is the action diagram of whole formation situation of " amount of staggering " of expression guiding feed mechanism.
Fig. 3 (a)～(c) is the action diagram that the first half of the expression amount of staggering forms situation.
Fig. 4 (a) and (b) are action diagrams of the latter half of formation situation of the expression amount of staggering.
Fig. 5 is the schematic diagram of arranging situation of the expanded graphite meterial of expression yarn inside.
Fig. 6 is expression is woven the gland packing that constitutes by the yarn of Fig. 2 a stereogram.
Fig. 7 is the section shape of expression expanded graphite meterial and the key diagram of dimension scale.
Fig. 8 is the figure of the contrast table of the ratio of width/thickness of expression expanded graphite meterial and minimum bending radius
Fig. 9 is the figure of the relation of the ratio of width/thickness of expression expanded graphite meterial and minimum bending radius.
Figure 10 is the profile of key position of the use example of expression gland packing.
Figure 11 is the figure of expression about the characteristic comparison sheet of the percentage of elongation of in the past yarn and yarn of the present invention.
Figure 12 is the sequential chart of the action of expression conveying mechanism and the summary that fritters mechanism.
The explanation of Reference numeral
1 yarn
2 fibrous materials
3 cartridges
4 expanded graphite meterials
5 gland packing
9 expanded graphite thin plates
9a thin plate face
10 drums (reel)
11,12 rollers
14 cutter blades
17 funnels
17a upper end open portion
17b lower ending opening portion
A expanded graphite feed mechanism
The b conveying mechanism
C fritters mechanism
D guides feed mechanism
K supplies with filling work procedure
S fritters operation
The manufacturing installation of A yarn
The T stand-by time
The feed speed of V expanded graphite thin plate
The specific embodiment
Below, manufacture method to yarn of the present invention, to as the manufacturing installation that uses at the yarn of the equipment of this manufacture method, the embodiment of the gland packing that makes to the yarn by above-mentioned manufacture method manufacturing and with above-mentioned yarn describes with reference to accompanying drawing.Fig. 1～Fig. 4 is each figure of the manufacturing installation of expression yarn and the manufacture method of using this manufacturing installation, Fig. 5 is the schematic diagram that is illustrated in the ordered state of the expanded graphite meterial in the yarn, Fig. 6 is the figure of the expression gland packing made from the yarn of Fig. 5, Fig. 7 is the enlarged drawing of the section size of expression expanded graphite meterial, Fig. 8, the 9th, the figure of the aspect ratio of expression expanded graphite meterial and the relation data of bending radius, Figure 10 is the figure of the use example of expression gland packing, Figure 11 is the figure of expression about the tables of data of the percentage of elongation of various yarns, and Figure 12 is about cutting off the sequential chart of action etc.
The schematic configuration that in Fig. 1, shows the manufacturing installation A of the manufacture method be used to implement yarn of the present invention.This manufacturing installation A is a device of making yarn 1, and above-mentioned yarn 1 is to form by filling expanded graphite in the cartridge 3 that constitutes to the mode with volume or textured fiber material 2.Above-mentioned manufacturing installation A comprises: expanded graphite feed mechanism a, and it can supply with the expanded graphite thin plate 9 with Rack continuously; Conveying mechanism b, it carries the expanded graphite thin plate 9 of being come by expanded graphite feed mechanism a supply to frittering the c of mechanism; Fritter the c of mechanism, its along the width of expanded graphite thin plate 9 continuously with tiny interval freely cut off by conveying mechanism b carry come along expanded graphite thin plate 9; Guiding feed mechanism d, the guiding supply is by the expanded graphite meterial (expanded graphite fiber) 4 of the square strip that fritters the c of mechanism and make to cartridge 3 in; Braiding machine e, it makes cartridge 3 by weaving multiple fibrous material 2.
Expanded graphite feed mechanism a is provided with drum 10 positive and negative any direction around the P of axle center to form with rotating freely, and above-mentioned drum 10 with the freely outfit of expanded graphite thin plate 9 of band shape with reeling.Therefore, by rotation, freely will be wound on expanded graphite thin plate 9 unwindings on the drum 10 and take out the back and supply with continuously to the direction drum 10 of arrow イ shown in Figure 1.
The expanded graphite thin plate 9 that conveying mechanism b comes clamping to be supplied with by expanded graphite feed mechanism a by pair of rolls 11,12 up and down, conveying mechanism b is made of following structure simultaneously, that is, by feed drive portion 13 drive these two rollers 11 of rotation 12 at least one roller 11.That is, conveying mechanism b is the mechanism to the traversing transmission expanded graphite of horizontal direction thin plate 9, and drum 10 constitutes as follows, and the forced conveyance of the expanded graphite thin plate 9 by conveying mechanism b is followed the trail of rotation, thus unwinding expanded graphite thin plate 9.
Frittering the c of mechanism comprises: cutter blades 14, and its width to the expanded graphite thin plate 9 of coming along the horizontal direction conveyance extends; Fritter drive division 15, it moves back and forth cutter blades 14 to the corresponding above-below direction of thin plate face 9a with expanded graphite thin plate 9; Bear platform 16, itself and cutter blades 14 form a pair of.Among Fig. 3 and Fig. 4 the 21, the 22nd is used to guide expanded graphite thin plate 9 and expanded graphite meterial 4, and bears platform 16 and forms a pair of compressing tablet.This cutter blades 14 forms has the blade (so-called guillotine cutter) that has the point of a knife 14a of angle with respect to thin plate face 9a, and, cutter blades 14 is by moving down, and cuts off expanded graphite thin plate 9 successively from the end to end of the width of expanded graphite thin plate 9.And the drive division 15 that fritters that moves back and forth cutter blades 14 at above-below direction is to form by selected known various structures, omits its detailed content at this and omits at this.
Guiding feed mechanism d constitutes by the funnel 17 of configuration above-below direction posture, this funnel 17 constitutes in the following way, promptly, on the terminal part that fritters the c of mechanism, dispose the large diameter upper end open 17a of portion, and, dispose the 17b of lower ending opening portion that disposes minor diameter on the upper end that forms cartridge by posture at above-below direction.Promptly, guiding feed mechanism d, fall and contact mode on the funnel inner face 17c that the mortar shape tilts with the expanded graphite meterial 4 of the square strip by frittering the little width that the c of mechanism makes, expanded graphite meterial 4 is changed into the longitudinal direction posture by the horizontal direction posture, play the effect of supplying with expanded graphite meterial 4 according to guiding in the cut-out order of frittering the c of mechanism is in cartridge 3 simultaneously.And the guiding feed mechanism constitutes as follows, that is, a plurality of expanded graphite meterials 4 are with the length direction of mutual end position at cartridge 3, and the state of the predetermined distance that promptly staggers on the above-below direction is supplied in the cartridge 3.
At this, the method for producing yarn of manufacturing installation A is by carrying operation h, frittering operation s and make yarn 1 with supply filling work procedure k.Carry operation h, by driving the pair of rolls 11,12 that feed drive portion 13 drives rotation clamping expanded graphite thin plate 9, follow the trail of rotation with this drum 10, thereby the expanded graphite thin plates of reeling 9 carry out unwinding more, and the rotary speed by control roll 11,12 can arbitrarily be controlled to frittering the transporting velocity V that the c of mechanism carries expanded graphite thin plate 9 (with reference to Fig. 3 etc.).
Fritter operation s for along the width of expanded graphite thin plate 9 operation with tiny interval continuous cutting-off expanded graphite thin plate 9, above-mentioned expanded graphite thin plate 9 is to supply with continuously with the state with Rack to come.Specifically, fritter operation s and have following function, promptly, fritter drive division 15 by driving and carry out the recovery that cut-out is moved and cutter blades 14 rises that cutter blades 14 descends repeatedly and move (above-below direction corresponding with the thin plate face 9a of expanded graphite thin plate 9 moves back and forth cutter blades 14), the expanded graphite thin plate 9 that conveying is come fritters the expanded graphite meterial 4 of the square strip of the little width w that becomes to have regulation.Cut expanded graphite meterial 4 drops on the funnel 17 under being positioned at.In addition, so-called " with tiny interval continuous cutting-off " be meant by frittering the c of mechanism and do not stop continuous operation and come to fritter expanded graphite thin plate 9 successively with cutter blades 14, and the actuating speed of frittering the c of mechanism by plus-minus can increase and decrease above-mentioned little width w arbitrarily.Should " with tiny interval continuous cutting-off ", when when being seen as the expanded graphite thin plate 9 that is cut off a side from the structure of frittering the c of mechanism and be benchmark, can define with " with the interruption cut-out of tiny interval " technique of expression.
Supply with filling work procedure k and be to cartridge 3 in guiding and supply with by the expanded graphite meterial 4 that fritters the square strip that operation s makes, thus the operation of filling cartridge 3.Specifically, as shown in Figure 1 and Figure 2, supply with the operation that filling work procedure k is the following effect of performance, promptly, by catch with funnel inner face 17c and to the 17b of lower ending opening portion guiding through frittering the expanded graphite meterial 4 that operation s falls supply, thereby be supplied to cartridge 3 after becoming vertical posture by horizontal posture.And, supplying with filling work procedure k falls and guides by the order according to the supply of expanded graphite meterial 4 and be supplied in the cartridge 3, adjacent expanded graphite meterial 4,4 with only stagger on above-below direction (length direction of the cartridge 3) state of ormal weight D of mutual end position, is supplied in the cartridge 3 each other.
The above-mentioned operation of manufacturing installation A (manufacture method) by yarn, the expanded graphite thin plate 9 that is wound on the drum 10 is frittered expanded graphite meterial 4 into square strip with tiny interval, and by utilizing funnel 17 in the cartridge of making by braiding machine e 3, to fill by the above-mentioned a plurality of expanded graphite meterials 4 made that fritter, thereby can make yarn 1, above-mentioned yarn 1 is made by fill expanded graphite meterial in cartridge 3, and above-mentioned cartridge 3 is made by woven fibre material 2.Below, the control to the embodiment and the manufacturing installation A of yarn 1 describes.
At first, shown in Fig. 3 (a), when cutter blades 14 rises, drive conveying mechanism b once more, carry the expanded graphite thin plate 9 that always stops so far with speed V (unit: mm/ second).And, shown in Fig. 3 (b), as long as carried that graphite width setting device 20 sets apart from w, conveying mechanism b will stop.At this moment, be positioned at the expanded graphite meterial 4a of the end of the expanded graphite thin plate 9 that has been frittered, be pushed out and begin to horizontal direction with speed V and fly.In addition, for convenience of explanation, first cut expanded graphite meterial 4 is called the 1st expanded graphite meterial 4a, be called the 2nd expanded graphite meterial 4b successively, the 3rd expanded graphite meterial 4c, and the expanded graphite meterial 4 that will make before the 1st expanded graphite meterial 4a is called the 0th expanded graphite meterial 4z.And, in Fig. 3,4, respectively axial region 11a, the 12a of roller 11,12 retouched to enclose and represent rotation status for white, retouch to the black circle and represent halted state.
Secondly, shown in Fig. 3 (c), drive shut-off mechanism c, fritter the end of (cut-out) expanded graphite thin plate 9 by moving down the cutter blades 14 that is on the rising position of readiness with the width of w, thereby make next expanded graphite meterial 4b.At this moment, the expanded graphite meterial 4a that flies out with speed V is in following state: descend simultaneously slightly under the effect of acceleration of gravity G, disperse in horizontal distance W.Promptly, if will be defined as T (unit: second) with the stand-by time (lag time (time lag)) that cutter blades 14 is cut to till cutting off next time, the distance that flies out of then interior during this period expanded graphite meterial 4a is W=VT, and this distance is exactly the interval of adjacent expanded graphite meterial 4a, 4b horizontal direction each other in the manufacturing process of expanded graphite meterial.But, suppose that the cut-out action by cutter blades 14 is to finish in (time 0) in a flash to discuss.
The state that Fig. 4 (a) is expressed as follows, that is, and the release release of the expanded graphite thin plate 9 by the 2nd expanded graphite meterial 4b and state when being about to single flying out.Under this state, the 1st expanded graphite meterial 4a is mobile slightly from the state shown in Fig. 3 (c), and with the above-mentioned distance W of dispersing that is spaced apart of the horizontal direction of the 2nd expanded graphite meterial 4b.And, by fritter operation when making the 3rd expanded graphite meterial 4c next time, shown in Fig. 4 (b), the horizontal direction of the 2nd expanded graphite meterial 4b and the 3rd expanded graphite meterial 4c be spaced apart W, this moment, end " amount of staggering " each other along the inner surface 17c landing of funnel 17 the 1st expanded graphite meterial 4a that moves and the 0th expanded graphite meterial 4z that has made before was D, D=α W (=α VT).
α is a coefficient, and this factor alpha is used for the amount of staggering that interval W with horizontal direction is converted into the above-below direction in the cartridge 3, and decides this factor alpha according to the requirement of system design of guiding feed mechanism d etc.Situation like this, distance W about horizontal direction, by the acceleration of gravity corresponding at interval expansion effect, various factors such as frictional resistance when the funnel inner surface 17c landing are decided factor alpha, but omit its detailed content at this with the height of off-position and cartridge.The actual amount of staggering D sets 20～30mm as described later for, perhaps the numerical value beyond it.
The interval W of adjacent expanded graphite meterial horizontal direction each other, the i.e. amount of staggering D, be approximately time according to the stand-by time T[of the transporting velocity V of expanded graphite thin plate 9 and cutter blades 14 from the state of Fig. 3 (b) to the state of Fig. 4 (a), correct time is with reference to Figure 12] be determined, for example, under and the situation that stand-by time T is long fast at transporting velocity V, " amount of staggering D " becomes big; Under and the situation that stand-by time T is short slow at transporting velocity V, " amount of staggering D " diminishes.And, consider also to have following situation, promptly, the situation that transporting velocity V is fast and stand-by time T is short, perhaps the situation that transporting velocity V is slow and stand-by time T is long is regulated situation by the two, that is, can set the amount of staggering D arbitrarily changeably by the variable setting apparatus 20 that staggers.
As the time of delivery Th[of the band of the time before the stand-by time T is needed time of state from the state of Fig. 3 (a) to Fig. 3 (b), correct time is with reference to Figure 12] with transporting velocity V multiplied result (VTh) be the width w of expanded graphite meterial 4, this time of delivery Th and transporting velocity V are to set by setting device 19 by width, determine the width w of expanded graphite meterial 4 thus.But, because the width setting device 19 and variable setting apparatus 20 both sides that stagger can set transporting velocity V, thus carry out condition enactment in the following manner, for example, with an operated side's earlier setting speed for preferentially setting.
As a reference, the sequential chart that in Figure 12, shows the summary that fritters action that fritters the c of mechanism.In Figure 12, with certain break time be basic point, show the startup of time dependent conveying mechanism b and shut-off mechanism c and the sequence of movement that stops, as mentioned above, cut off between action when not required being described as snap action.By this sequential chart as can be known, when fixing transporting velocity V, the width of expanded graphite meterial 4 decides according to time of delivery Th, and the amount of staggering D decides according to stand-by time T.
Secondly, to by the shape of the yarn 1 of the manufacture method manufacturing of above-mentioned yarn, characteristic, several embodiment and by the gland packing 5 (G) that above-mentioned yarn 1 is made, describe.
Shown in Fig. 1,2,5, by the yarn that is used for gland packing (weaving thread) the 1st that the manufacture method of above-mentioned manufacturing installation A is made, the expanded graphite meterial 4 of a plurality of side's strips with mutual end position on the length direction of expanded graphite meterial with the quantitative D state that staggers mutually, be filled in the cartridge 3 and form, above-mentioned cartridge 3 is by compiling or textured fiber material 2 is made.And the aspect ratio h of the section shape of expanded graphite meterial 4 preferably is set between 1～5 (1≤h≤5), and above-mentioned aspect ratio h is the value that width gets divided by thickness.As shown in Figure 7, this aspect ratio h is that the width w of section size of expanded graphite meterial 4 is divided by the result (h=w/t) of (removing) thickness t.And, the section shape of expanded graphite meterial 4 also can for, for example, the shape beyond the rectangles such as circular, Long Circle and ellipse.
For example, as shown in Figure 2, with on above-below direction, only the stagger state of D of end position, with expanded graphite meterial 4 to put into upper and lower to the configuration cartridge 3 in, as shown in Figure 5, be formed on the yarn 1 of the state that is filled with a plurality of expanded graphite meterials 4 in the cartridge 3, above-mentioned a plurality of expanded graphite meterials 4 are that the state of D is filled with the amount of staggering of mutual end position.This under situation, as shown in Figure 5, adjacent expanded graphite meterial 4 spacer portion f each other on the length direction of yarn, distance D mutually staggers respectively, therefore be difficult to produce or do not produce following situation, that is,, the mechanical strength of the yarn 1 of above-mentioned part is reduced with this because a plurality of spacer portion concentrate f on certain part of the length direction of yarn.In addition, for simplicity, spacer portion f has been described large on Fig. 5.
In Fig. 8 and Fig. 9, be 0.25mm, 0.38mm, 0.50mm 3 kinds, and be 1.5,2,3,4,55 kinds, amount to 15 cover samples (yarn 1), measure the flexible radius of width and the data that obtain aspect ratio to the thickness of expanded graphite meterial 4.At this moment, so-called " flexible radius " be not for expanding blocking, split and flexible least radius under the state that exposes between the packing fibrous material 2 of graphite material 4.Can associate following occupation mode, promptly, expanded graphite meterial 4 thickness t are that being applicable to of 0.25mm made the yarn that the minor diameter gland packing is used, thickness is that being applicable to of 0.38mm made popular gland packing yarn, and thickness is that being applicable to of 0.50mm made the yarn that the major diameter gland packing is used.
Yet from the coordinate diagram of the table of Fig. 8 or Fig. 9, can know that if the aspect ratio of expanded graphite meterial 4 becomes below 5, just can obtain the minimum bending radius value of anti-practicality, if aspect ratio becomes below 3, it is extremely little that minimum bending radius just becomes.Therefore, the scope of aspect ratio preferably is set in 1.0～3.0 scope (1.0≤h≤3.0).Because when h is 1, width became 0.25mm when thickness was 0.25mm, thereby physically be difficult to cut off such width, so consider from the actual conditions of cutting off action, it is comparison reality that the rolling off the production line of aspect ratio is set at 1.But from Fig. 8,9 test data, aspect ratio preferably is set within 1.5～3.0 the scope.
Gland packing 5 shown in Fig. 6 is to make 8 (a kind of examples of many) above-mentioned yarn 1 around core S (can not having core S) integrated a branch of and twist thread processing or braiding (compile at 8 bursts of angles) filler into strips, by it is rounded compression molding continuously, can form section is that rectangle and global shape are the ring-type gland packing of doughnut (doughnut) shape.For example, as shown in figure 10, gland packing G is provided on the stuffing box 7 with a plurality of states that are arranged in the axis direction of rotating shaft 6, and, by by follower 8 by being pressed on the axis direction, thereby play sealing function to the outer surface 6a of rotating shaft 6.
[first embodiment of yarn]
The yarn of first embodiment uses above-mentioned manufacture method to make in the following manner.With a plurality of section shapes is the rectangle of thickness t 0.38mm * width w 1.0mm and the expanded graphite meterial 4 about length 200mm, the limit makes these the end position 20mm that staggers, the limit is filled in the cartridge 3, thereby make section shape be the yarn 1 of circular (round), and above-mentioned cartridge 3 uses the nichrome line (perhaps stainless steel wire etc.) of diameter 0.1mm degree to work out (knitting) as fibrous material 2 and forms.That is, for setting 4 each other the examples of the amount of staggering D=20mm of end of expanded graphite meterial 4.The aspect ratio h of the expanded graphite meterial 4 in the 1st yarn 1 of this first embodiment is, h=1.0/0.38 ≈ 2.63, and weight is 5g/m.
Fig. 3, the gland packing 5 that expression is made with the yarn 1 of first embodiment.This gland packing 5, for after yarn 1 braiding (compile at 8 bursts of angles) by 8 first embodiment forms, expanded graphite is coated on the surface, and section is vertical 8mm of being and laterally is the foursquare gland packing of 8mm.
[second embodiment of yarn]
The yarn of second embodiment is to use above-mentioned manufacture method to make in the following manner.With section size is that the end of the expanded graphite meterial 4 of thickness 0.38mm, width 1.0mm, length 200mm is when staggering 30mm respectively, collect bunchy growth bar parts, and cover its peripheries with cartridge 3, be circular yarn 1 thereby make section shape, the thread fibrous material 2 of the nichrome that above-mentioned cartridge 3 is to use linear diameter 0.1mm forms with the knitting braiding.That is be, for setting 4 examples of the amount of the staggering D=30mm of end each other of expanded graphite meterial 4.The aspect ratio h of the expanded graphite meterial 4 in the 2nd yarn 1 of this second embodiment is h=1.0/0.38 ≈ 2.63, and in addition, weight is 4g/m.
After weaving with the yarn 1 of 8 second embodiment, coat expanded graphite, present vertically for 6.5mm and laterally be the foursquare gland packing 5 (with reference to Fig. 3) of 6.5mm thereby make section on the surface.
In Figure 11, show the yarn of above-mentioned first, second embodiment and the characteristic comparison sheet of the yarn of existing product 1～5 with existing structure.The schematic configuration of existing product is as follows.The yarn of existing product 1 is the little expanded graphite thin plates of stacked many width, thereby with the structure of its periphery of fiber reinforcement.The yarn of existing product 2 is the structure with the periphery of fiber reinforcement shoestring, and above-mentioned shoestring is folding the forming of expanded graphite tape that width is big.The yarn of existing product 3 is for folding or heat structure with the big expanded graphite tape of fibre-reinforced width.The yarn of existing product 4 is the structure of periphery that also has the yarn of product 3 with fiber reinforcement now.The yarn of existing product 5 is the structure of filling side's strip expanded graphite thin plate in the cartridge made from fiber.
As can be seen, the percentage of elongation of the yarn 1 of first, second embodiment obviously is better than any yarns of existing product 1～5, is to be high-caliber yarn from the characteristic comparison sheet of Figure 11.Improvement significantly by percentage of elongation, when weaving a plurality of yarn 1 in order to make gland packing, can eliminate the unfavorable condition that is fractureed because of the crooked situation that can not follow the trail of expanded graphite meterial 4, thereby do not produce decline, can bring into play good sealing property for a long time as the sealing of gland packing.
Promptly, in the yarn of existing product, because expanded graphite (expanded graphite thin plate, expanded graphite tape) drops at random and be filled in the cartridge, skewness appears so appear at expanded graphite adjacent on length of yarn direction spacer portion (with reference to the spacer portion f of Fig. 5) each other, it is first-class that wherein spacer portion concentrates on a position, and the length direction density of the yarn of expanded graphite becomes inhomogeneous easily, and it is inhomogeneous that consequent mechanical percentage of elongation also becomes easily.Therefore, when turning round stranding or twisted warp yarn, relatively be easy to generate the unfavorable condition of expanded graphite fracture at the bad position of percentage of elongation.
With respect to therewith, in the yarn 1 of first, second embodiment, because will be filled in the end position of the expanded graphite meterial of a plurality of side's strips in the cartridge 3, on the length direction of yarn, stagger equably and constitute, so the position of spacer portion f decentralized configuration (width is also identical) on the length direction of yarn 1 equably makes the density of the expanded graphite meterial 4 in the cartridge 3 more even as mentioned above.Its result, the correspondence of the stretching, extension by expanded graphite slip each other is not subjected to the position restriction how of length direction of yarn and homogenized, thereby obtains improve (with reference to Figure 11) of essence, therefore, can be under the situation that expanded graphite does not disconnect to yarn twist thread processing or braiding.
According to the above, the yarn 1 of first, second embodiment, and have following advantage with the gland packing 5 of its manufacturing.1. by changing the radical of the expanded graphite meterial of collecting bunchy, can make thick yarn arbitrarily.2. because of expanded graphite meterial slip each other well, so not only expanded graphite can not rupture, and extensibility is big.3. because the section easy deformation of fibre bundle be circular, thus with the good airproof performance of reinforcing material, and, bending easily.4. because do not use long material, so produce easily.5. also can make yarn without adhesive.
[other embodiment]
What operation s was frittered in operation fritters the c of mechanism, generally speaking so long as the structure of cutting off along the width of expanded graphite thin plate 9, just can, therefore use the diagram structure in addition of cutter blades 14 also passable.And the conveying mechanism b of operation h is carried in operation, perhaps is used to move the guiding feed mechanism d of filling procedure k, also can use diagram structure in addition.And, expanded graphite feed mechanism a, conveying mechanism b, guiding feed mechanism d uses diagram structure in addition also can.
Claims (14)
1. the manufacture method of a yarn, above-mentioned yarn be by to compile or cartridge that the textured fiber material is made in fill the yarn that expanded graphite forms, it is characterized in that, comprising:
Fritter operation, will cut off with tiny interval along this width with the continuous expanded graphite thin plate of supplying with of the state with Rack;
Supply with filling work procedure, will be by the above-mentioned expanded graphite meterial that fritters the square strip that operation makes, guiding is supplied in the above-mentioned cartridge, thereby fills above-mentioned cartridge.
2. the manufacture method of yarn as claimed in claim 1, it is characterized in that, fritter in the operation above-mentioned, the cutter blades of extending along above-mentioned width is moved back and forth on the above-below direction with respect to the thin plate face of above-mentioned expanded graphite thin plate, with the above-mentioned expanded graphite thin plate of this continuous cutting-off, thereby make the expanded graphite meterial of above-mentioned side's strip.
3. as the manufacture method of claim 1 or 2 described yarns, it is characterized in that, in above-mentioned supply filling work procedure, use funnel to make and drop in the above-mentioned cartridge, this expanded graphite meterial guiding is supplied in the above-mentioned cartridge with this by the above-mentioned expanded graphite meterial that fritters the square strip that operation supplies with.
4. as the manufacture method of each described yarn in the claim 1～3, it is characterized in that, in above-mentioned supply filling work procedure, make by above-mentioned and fritter the above-mentioned expanded graphite meterial that operation supplies with and drop in proper order in the above-mentioned cartridge according to its supply, with this this expanded graphite meterial guiding is supplied in the above-mentioned cartridge, thereby the state of ormal weight is supplied in the above-mentioned cartridge so that mutual end position has staggered on the length direction of cartridge with a plurality of above-mentioned expanded graphite meterials.
5. the manufacture method of yarn as claimed in claim 4, it is characterized in that, by at least one in variable adjustment feed speed and the stand-by time, set at least one in the amount of staggering of the width dimensions of above-mentioned expanded graphite meterial and above-mentioned end position in the mode of variable adjustment, wherein, above-mentioned feed speed is to fritter the speed that operation is supplied with above-mentioned expanded graphite thin plate to above-mentioned, and above-mentioned stand-by time is to move from the cut-out of cutting off above-mentioned expanded graphite thin plate to cut off stand-by time the action next time.
6. a gland packing is characterized in that, will constitute band shape with this by the threads of making as the manufacture method of each described yarn in the claim 1～5 integrated a branch of and twist thread processing or braiding.
7. the manufacturing installation of a yarn, above-mentioned yarn be by to compile or cartridge that the textured fiber material is made in fill the yarn that expanded graphite forms, it is characterized in that having:
The expanded graphite feed mechanism, it can supply with the expanded graphite thin plate with Rack continuously;
Conveying mechanism, it is to frittering the expanded graphite thin plate that mechanism carries above-mentioned expanded graphite feed mechanism to be supplied with;
Fritter mechanism, its width along the expanded graphite thin plate freely cuts off the expanded graphite thin plate that above-mentioned conveying mechanism is carried with tiny interval;
The guiding feed mechanism, it is supplied to above-mentioned expanded graphite meterial guiding of frittering the made square strip of mechanism in the above-mentioned cartridge.
8. the manufacturing installation of yarn as claimed in claim 7, it is characterized in that, above-mentioned expanded graphite feed mechanism constitutes with following structure: the drum of banded expanded graphite thin plate is installed, to support to the direction free rotation mode that makes the free unwinding of above-mentioned expanded graphite thin plate that is wound on the above-mentioned drum with freely reeling.
9. as the manufacturing installation of claim 7 or 8 described yarns, it is characterized in that, above-mentioned conveying mechanism constitutes with following structure: the expanded graphite thin plate with the above-mentioned expanded graphite feed mechanism of pair of rolls clamping is supplied with drives at least one in these two rollers of rotation simultaneously.
10. as the manufacturing installation of each described yarn in the claim 7～9, it is characterized in that the above-mentioned mechanism of frittering constitutes with following structure: the cutter blades of extending along above-mentioned width is moved back and forth on the above-below direction with respect to the thin plate face of above-mentioned expanded graphite thin plate.
11. manufacturing installation as each described yarn in the claim 7～10, it is characterized in that, above-mentioned guiding feed mechanism is equipped with funnel, above-mentioned funnel disposes large diameter upper end open portion on the above-mentioned terminal part that fritters mechanism, and in the lower ending opening portion that on the upper end of the above-mentioned cartridge that posture was disposed, disposes minor diameter with upper and lower.
12. manufacturing installation as each described yarn in the claim 7～11, it is characterized in that, above-mentioned guiding feed mechanism is that the above-mentioned made expanded graphite meterial of mechanism that fritters is guided the mechanism that is supplied in the cartridge in proper order according to its cut-out, and the state of ormal weight is supplied in the above-mentioned cartridge above-mentioned guiding feed mechanism so that mutual end position has staggered on the length direction of cartridge with a plurality of above-mentioned expanded graphite meterials.
13. the manufacturing installation of yarn as claimed in claim 12, it is characterized in that, the adjusting setting device is equipped with, this adjusting setting device to the transporting velocity of above-mentioned expanded graphite thin plate and/or move from above-mentioned cut-out of frittering mechanism and to cut off stand-by time the action next time, is set the width dimensions of above-mentioned expanded graphite meterial and/or the stagger amount of above-mentioned end position in the mode of variable adjustment by the above-mentioned conveying mechanism of variable adjustment.
14. a gland packing is characterized in that, will constitute band shape with this by the threads of making as the manufacturing installation of each described yarn in the claim 7～13 integrated a branch of and twist thread processing or braiding.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP008564/2006 | 2006-01-17 | ||
| JP2006008564A JP4378351B2 (en) | 2006-01-17 | 2006-01-17 | Yarn manufacturing method |
| JP2006008565A JP4372106B2 (en) | 2006-01-17 | 2006-01-17 | Yarn production equipment |
| JP008565/2006 | 2006-01-17 | ||
| PCT/JP2006/326198 WO2007083507A1 (en) | 2006-01-17 | 2006-12-28 | Process and apparatus for producing yarn and gland packing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101310060A true CN101310060A (en) | 2008-11-19 |
| CN101310060B CN101310060B (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800429129A Active CN101310060B (en) | 2006-01-17 | 2006-12-28 | Process and apparatus for producing yarn and gland packing |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4378351B2 (en) |
| CN (1) | CN101310060B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605550A (en) * | 2012-01-04 | 2012-07-25 | 韩百峰 | Automatic filling and feeding device of braiding machine |
| CN104421431A (en) * | 2013-08-21 | 2015-03-18 | 日本皮拉工业株式会社 | Gland packing |
| CN107109787A (en) * | 2014-11-18 | 2017-08-29 | 日本皮拉工业株式会社 | The manufacture method of line |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4820853B2 (en) * | 2008-09-10 | 2011-11-24 | 日本ピラー工業株式会社 | Yarn |
| WO2016080023A1 (en) | 2014-11-18 | 2016-05-26 | 日本ピラー工業株式会社 | Yarn and gland packing |
| CN108019517B (en) | 2016-10-31 | 2020-12-01 | 日本皮拉工业株式会社 | Sealing material composition and gland packing comprising the same |
| JP7482826B2 (en) | 2021-04-22 | 2024-05-14 | 日本ピラー工業株式会社 | Yarn, gland packing, and manufacturing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455334A (en) * | 1982-05-21 | 1984-06-19 | Nippon Pillar Packing Co. Ltd. | Molded gland packing |
| JPH0689322B2 (en) * | 1991-11-21 | 1994-11-09 | 日本ピラー工業株式会社 | Inflator gasket |
| US5549306A (en) * | 1993-01-21 | 1996-08-27 | Nippon Pillar Packing Co., Ltd. | Knitting yarn for gland packing and gland packing made of said knitting yarn |
| JP3927742B2 (en) * | 1999-12-27 | 2007-06-13 | 日本ピラー工業株式会社 | Expanded graphite knitting yarn |
-
2006
- 2006-01-17 JP JP2006008564A patent/JP4378351B2/en active Active
- 2006-12-28 CN CN2006800429129A patent/CN101310060B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605550A (en) * | 2012-01-04 | 2012-07-25 | 韩百峰 | Automatic filling and feeding device of braiding machine |
| CN102605550B (en) * | 2012-01-04 | 2014-02-26 | 韩百峰 | Automatic filling and feeding device of braiding machine |
| CN104421431A (en) * | 2013-08-21 | 2015-03-18 | 日本皮拉工业株式会社 | Gland packing |
| CN104421431B (en) * | 2013-08-21 | 2019-02-15 | 日本皮拉工业株式会社 | Gland packing |
| CN107109787A (en) * | 2014-11-18 | 2017-08-29 | 日本皮拉工业株式会社 | The manufacture method of line |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007191803A (en) | 2007-08-02 |
| JP4378351B2 (en) | 2009-12-02 |
| CN101310060B (en) | 2011-04-06 |
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