EP1460159A1 - Trick plate spacing changer for double raschel machines - Google Patents
Trick plate spacing changer for double raschel machines Download PDFInfo
- Publication number
- EP1460159A1 EP1460159A1 EP02786198A EP02786198A EP1460159A1 EP 1460159 A1 EP1460159 A1 EP 1460159A1 EP 02786198 A EP02786198 A EP 02786198A EP 02786198 A EP02786198 A EP 02786198A EP 1460159 A1 EP1460159 A1 EP 1460159A1
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- EP
- European Patent Office
- Prior art keywords
- pedestal
- trick
- rows
- knitting
- knitting needles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/02—Flat warp knitting machines with two sets of needles
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/08—Flat warp knitting machines with provision for incorporating pile threads
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/06—Needle bars; Sinker bars
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/06—Needle bars; Sinker bars
- D04B27/08—Driving devices therefor
Definitions
- This invention relates to a trick plate spacing changer for double raschel machines.
- a spacing between front and rear opposite rows of knitting needles should be changed when the thickness of a fabric to be knitted is changed. This requires change of a spacing between front and rear trick plates contingent on the knitting needles.
- the applicant has proposed and filed the JP-A-2000-80545 for the apparatus for changing the spacing between front and rear trick plates.
- an eccentric mechanism provided with locking means is connected to an end of each connecting rod connected to respective supporting levers for supporting front and rear opposite trick plates.
- the locking means would be unlocked when a spacing between the trick plates is to be changed, and a handle attached to the eccentric mechanism is rotated as to change a position of the connecting rod.
- the supporting lever is rotated as to change a position of the trick plates held at the distal ends.
- a desired trick plate spacing is obtained through such procedure.
- the trick plate pivots about an axis of the supporting lever to change in position.
- a distal end of the trick plate is even slightly shifted in a stroke direction relative to distal ends of the knitting needles. If such shift is left as it is, a condition of pulling from a loop in knitting changes, resulting in trouble or disadvantage in knitting.
- stroke of knitting needles has to be changed or adjusted, after changing the trick plate spacing. This makes a procedure for changing the trick plate spacing to be troublesome.
- a trick plate spacing changer which can resolve the above problems, for a double raschel machine that is comprised of : front and rear, two rows of knitting needles; front and rear trick plates contingent on the front and rear rows of knitting needles; front and rear intermediate frames respectively supporting the front and rear rows of knitting needles and the trick plates in a knitting-allowing manner; and a front pedestal and a rear pedestal on which the front and rear intermediate frames are respectively erected and fixed, characterized in that: means or mechanism for linearly moving the front pedestal and the rear pedestal toward and away from each other are provided on both of the front and rear pedestals so as to enable changing of spacing between the front and rear trick plates together with spacing between the rows of knitting needles.
- the trick plate spacing changer linearly moving the front pedestal and the rear pedestal toward or away from each other by means of said means for moving allows the spacing between the front and rear trick plates to be easily changed. Furthermore, the whole parts on the front and rear pedestals including the front and rear trick plates and the front and rear rows of knitting needles evenly moves in parallel, so that a relative position of the trick plates and the knitting needles does not change before and after changing the spacing, resulting in dispensing with stroke adjustment of the knitting needles.
- the front and rear trick plates are mounted through a supporting body to a supporting shaft passing through plural intermediate frames in the width direction of the knitting machine, the intermediate frames being respectively erected and fixed on the front and rear pedestals, in a knitting-allowing manner together with the knitting needles.
- Said means or mechanism for linearly moving is preferably comprised of threaded shaft (s) screwed on and passing through the front pedestal and the rear pedestal in the front-rear direction. More preferably, one of the threaded shafts has a right-hand thread and the other of the threaded shaft has a left-hand thread. This allows the structure to be simplified and driving to be easily performed.
- each of the front pedestal and the rear pedestal may be fastened as fixed to a base machine pedestal by way of clamp means or clamp device(s) so that hydraulic means is used for fastening and unfastening the front pedestal and the rear pedestal.
- clamp means or clamp device(s) so that hydraulic means is used for fastening and unfastening the front pedestal and the rear pedestal.
- a first take-up roll and a presser roll are oppositely provided in parallel at below of the knitting area formed by the rows of knitting needles; and one of the take-up roll and the presser roll is mounted on a front intermediate frame while the other is mounted on a rear intermediate frame. Then, a spacing between the opposite rolls in conformity with the thickness of the three-dimensional warp knitted fabric being knitted is automatically adjusted when the spacing between the trick plates is changed.
- Figure 1 is a sectional view of a double raschel machine including a trick plate spacing changer in accordance with the invention, the view being taken away in a direction vertical to the width direction of the knitting machine.
- firsta denotes a front knitting needle and “2a” denotes a front trick plate, which is mounted to a supporting body 3a.
- firstb denotes a rear knitting needle and
- secondb denotes a rear trick plate, which is mounted to a supporting body 3b.
- the plural front and rear knitting needles 1a and 1b are arranged in parallel to form rows of knitting needles in a width direction of the knitting machine, that is, in a direction vertical to the sheet face of Figure 1.
- the front and rear trick plates 2a and 2b extend in the width direction of the knitting machine in parallel with the rows of knitting needles.
- “4a” denotes a front intermediate frame, a plurality of which is erected and fixed with interval(s) in the width direction of the knitting machine on a front pedestal 5a that is placed on the front side of a base machine pedestal 6.
- the front pedestal 5a is press-wise fastened onto the base machine pedestal 6 as able to be unfastened and re-fastened by use of clamp means described later.
- a supporting shaft 7a is arranged to run through the upper part of the intermediate frame 4a in the width direction of the knitting machine, that is, in a direction vertical to the sheet face.
- Plural supporting bodies 3a are mounted to the supporting shaft 7a.
- the front trick plate 2a is laterally laid across and mounted to the respective supporting bodies 3a.
- “4b” denotes a rear intermediate frame, a plurality of which is erected and fixed with a space in the width direction of the knitting machine on a rear pedestal 5b provided on the rear side of a base machine pedestal 6.
- the front pedestal 5b is press-wise fixed on the base machine pedestal 6 as able to be unfastened and re-fastened by use of clamp means described later.
- a supporting shaft 7b is arranged to run through the upper part of the above-mentioned intermediate frame 4b in the width direction of the knitting machine.
- Plural supporting bodies 3b are mounted to the supporting shaft 7b.
- the rear trick plate 2b is laterally laid across and mounted to the respective supporting bodies 3b.
- FIG. 1 denote respectively front and rear cam shafts.
- Plural cams 9a and 9b are fitted to be fixed onto the both cam shafts 8a and 8b, respectively.
- a cam lever 10b for driving the knitting needle 1a is mounted to the front cam shaft 8a while a cam lever 10b for driving a stitch comb 11b is mounted to the rear cam shaft 8b, for the sake of convenience.
- the cam levers for respectively driving the knitting needle and a stitch comb are provided on the both cam shafts 8a and 8b, respectively, in same manner with conventional apparatuses.
- the above is not the main point of the invention, and therefore, omitted from a detailed illustration.
- “12” denotes two threaded shafts respectively provided on the front-part and rear-part sides of the knitting machine, that is, on both sides in the width direction of the knitting machine.
- the threaded shafts respectively run through the front pedestal 5a and the rear pedestal 5b in the front-and-rear direction as shown in Figure 3.
- the extreme ends of the threaded shafts 12 are respectively supported by bearings 13a and 13b fixed to the base machine pedestal 6.
- a front-part threaded shaft 12a (right-hand part in Figure 2) of the threaded shaft 12 as awhole is arranged in the front pedestal 5awhile a rear-part (left-hand part in Figure 2) threaded shaft 12b of the threaded shaft 12 as a whole is arranged in the rear pedestal 5b.
- nuts 13a1 and 13a2 are fixed in a built-in style in the front pedestal 5a while nuts 13b1 and 13b2 are provided in a built-in style in the rear pedestal 5b.
- each of the front-part and rear-part threaded shafts 12a and 12b is screwed in the pair of nuts.
- "14” denotes a coupling, which couples together the front-part and rear-part threaded shafts 12a and 12b as to be joined and fixed with each other.
- two worm wheels 15 are respectively put tightly as fixed onto rear extreme ends of the joined threaded shafts 12, which are respectively arranged in the right and left sides of the knitting machine.
- Each of the respective worm wheels 15 is engaged with a worm 16 as shown in Figures 1 and 3.
- two worm shafts 17 respectively for the worms 16 on right and left sides of the knitting machine are coupled as fixed to a transmission shaft 18 by use of respective couplings 19, as respectively being supported by two bearings 20.
- a sprocket 21 is mounted on an end of one of the worm shafts 17 to be connected, through a connecting chain 25, with a sprocket 24 mounted on a shaft 23 of a motor 22 that is provided on the base machine pedestal 6.
- "26" denotes supporting metals for supporting the transmission shaft 18.
- Figures 4 and 5 are sectional views of clamp means for fixing the front pedestal 5a and the rear pedestal 5b to the base machine pedestal 6.
- Figure 4 shows two clamp sites in the front pedestal 5a while
- Figure 5 shows one clamp site.
- three pairs of clamp sites namely six clamp sites as paired by every two of them, are provided on each of the front and rear pedestals 5a and 5b, since the operational width of the knitting machine is 75 inches in the double raschel machine in this embodiment. It goes without saying that the number of the clamp sites can be increased or decreased in accordance with the increase or decrease of the operational width of the knitting machine.
- Figure 4 is a sectional view taken along the line B-B in Figure 2. With respect to Figure 4, only the clamp means on left-hand side on the drawing will be explained at below since those on front-part and rear-part sides are equivalent in construction.
- the flange member 31 is engaged with a concave portion on the upper surface side of the cylinder member 27.
- the belleville spring 30 is thus held between a bottom surface of the concave portion and the flange member 31.
- the other distal portion, i.e. a lower distal portion, of the shaft part 32 passes through a long hole 43, which is formed on the base machine pedestal 6 and which is long in the front-and-rear direction, so as to be capable of sliding therein.
- a double nut 33 is screwed from a bottom surface 6a of the base machine pedestal 6, directly or via a washer as shown in Figure 4.
- the front pedestal 5a and the base machine pedestal 6 are thus tightly and closely fixed with each other by the belleville spring 30.
- There applies force of 1.8 t (metric tons) per each clamp means in the case of this embodiment, by way of parenthesis.
- the clamp means of the rear pedestal 5b has a structure substantially same to that of the clamp means described above. Therefore, detailed description thereof is omitted here.
- a pipe 34 provided to communicate with the inner space 27a of the cylinder member 27 of the clamp means.
- the pipe 34 is communicated to six cylinder members 27, which are located separately, of the front pedestal 5a as shown in Figure 2.
- the pipe 34 is further communicated through a communication pipe 44 to six cylinder members 27, which are located separately, of the rear pedestal 5b.
- "35” denotes a "hydraulic jack” or hydraulic pump provided closely to the machine pedestal 6 and connected to an end of the pipe 34 as to pump oil into the inner space 27a of each cylinder member 27.
- the "hydraulic jack” is arranged to use the hydraulic pressure obtained by the oil-pumping operation as to move the piston member 29 and its shaft part 32 against the extension-wise restoring force, or the resilience, of the belleville spring 30. That is to say, the hydraulic means are used for performing operations of fastening and unfastening the front pedestal 5a and the rear pedestal 5b against the base machine pedestal 6 by way of the clamp means.
- the pipe 34 is omitted from the illustration.
- the numeral 36 shown in Figure 1 denotes a three-dimensional warp-knitted fabric being knitted.
- a fabric having a predetermined thickness is formed as knitted with yarn fed from a group of knitting reed 37 provided at above the knitting needles 1a and 1b.
- the thickness of the fabric is determined in accordance with spacing between the trick plates 2a and 2b.
- a lever 35a of the hydraulic jack 35 is first operated as to pump and inject oil into each space upside of the piston member 29 in the inner space 27a of each cylinder member 27.
- the piston member 29 and its shaft part 32 thereby move to a direction shown by an arrow 38 in Figure 5 against the extension-wise restoring force of the belleville spring 30.
- the gap is 0.4 mm.
- a press-wise fixing of the front pedestal 5a and the rear pedestal 5b against the base machine pedestal 6 is thus released.
- a driving signal is sent to the motor 22 as to rotate the both worms 16 on the transmission shaft 18, via the shaft 23, the sprocket 24, the connecting chain 25 and the sprocket 21; the worms 16 being located on right-hand and left-hand sides of the knitting machine.
- Such rotation of the worms 16 makes the two threaded shafts 12 on right-hand and left-hand sides of the knitting machine to simultaneously rotate, by rotating the both worm wheels 15.
- the transmission shaft 18 When to widen the spacing between the trick plates 2a and 2b, the transmission shaft 18 is rotated in the counter-clockwise direction in view from a side associated with the motor 22. This makes the front pedestal 5a to move frontward and makes the rear pedestal 5b to move rearward so that the front and rear pedestals 5a and 5b separate from each other in a linear manner. On such occasion, it goes naturally that each spacing between the intermediate frames 4a and 4b, the supporting shafts 7a and 7b, the supporting bodies 3a and 3b, the trick plates 2a and 2b and the knitting needles 1a and 1b also increases by a same distance with increase of the spacing between the front and rear pedestals 5a and 5b.
- Plural take-up rolls are provided below the knitting area, which is formed by the rows of the knitting needles, as arranged in parallel to the width direction of the knitting machine, that is, a direction vertical to the sheet surface of Figure 1.
- a first take-up roll 39 among the plural take-up rolls is located nearest to the knitting area and arranged to face to a presser roll 40.
- a distance between the first take-up roll 39 and the presser roll 40 is automatically changed in conformity with thickness of the three-dimensional warp knitted fabric 36 that is being knitted; by following construction: the first take-up roll 39 and the presser roll 40, which are opposed with each other, are respectively provided in one body with the intermediate frames 4a and 4b, or with the intermediate frames 4b and 4a.
- the first take-up roll 39 is provided in one body with the front intermediate frame 4a
- the presser roll 40 is provided in one body with the intermediate frame 4b
- spacing between the first take-up roll 39 and the presser roll 40 is changed by same amount with change of the spacing between the front and rear pedestals 5a and 5b.
- a motor is used in changing the trick plate spacing. It goes without saying, however, that not only a motor but also the other driving means may be used, such that a handle may be mounted to the transmission shaft so as to be manually rotated, for example.
- the front and rear pedestals 5a and 5b respectively supporting the front and rear trick plates 2a and 2b move toward and away linearly from each other, by the means for moving.
- a relative stroke position of the knitting needles 1a and 1b for the trick plates would not change before and after changing the spacing. This results in dispensing with stroke adjustment of the knitting needles after changing the trick plate spacing.
- the above-mentioned means for moving are threaded shafts 12, which run through the front pedestal 5a and the rear pedestal 5b as screwed on them, in the front-and-rear direction.
- one of the threaded shafts 12 has a right-hand thread while the other has a left-hand thread. This simplifies a structure of the trick plate spacing changer, resulting in easy driving.
- the hydraulic means are used for pressing and fixing the front pedestal 5a and the rear pedestal 5b to the base machine pedestal 6 and for releasing the fixing, so that a changing operation can be easily and conveniently performed.
- the invention is particularly applicable to a double raschel machine comprising two rows, front and rear, of knitting needles, wherein the spacing of rows of the front and rear knitting needles and the spacing of the front and rear trick plates belonging to the knitting needles should be changed in changing the thickness of a fabric to be knitted.
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Abstract
Description
- This invention relates to a trick plate spacing changer for double raschel machines.
- In a conventional double raschel machine comprising two rows, front and rear, of knitting needles, a spacing between front and rear opposite rows of knitting needles should be changed when the thickness of a fabric to be knitted is changed. This requires change of a spacing between front and rear trick plates contingent on the knitting needles.
- The applicant has proposed and filed the JP-A-2000-80545 for the apparatus for changing the spacing between front and rear trick plates. In the apparatus, an eccentric mechanism provided with locking means is connected to an end of each connecting rod connected to respective supporting levers for supporting front and rear opposite trick plates. Thus, the locking means would be unlocked when a spacing between the trick plates is to be changed, and a handle attached to the eccentric mechanism is rotated as to change a position of the connecting rod. Thereby, the supporting lever is rotated as to change a position of the trick plates held at the distal ends. A desired trick plate spacing is obtained through such procedure.
- In the change of a trick plate spacing by the proposed apparatus described above, however, the trick plate pivots about an axis of the supporting lever to change in position. Thus, a distal end of the trick plate is even slightly shifted in a stroke direction relative to distal ends of the knitting needles. If such shift is left as it is, a condition of pulling from a loop in knitting changes, resulting in trouble or disadvantage in knitting. For canceling the shift, stroke of knitting needles has to be changed or adjusted, after changing the trick plate spacing. This makes a procedure for changing the trick plate spacing to be troublesome.
- In order to resolve the above problems of double raschel machines, it is intended to provide a trick plate spacing changer for the double raschel machines, which is capable of simplifying the procedure for changing the trick plate spacing and which dispenses with stroke adjustment of the knitting needles after the changing operation.
- A trick plate spacing changer according to the invention, which can resolve the above problems, for a double raschel machine that is comprised of : front and rear, two rows of knitting needles; front and rear trick plates contingent on the front and rear rows of knitting needles; front and rear intermediate frames respectively supporting the front and rear rows of knitting needles and the trick plates in a knitting-allowing manner; and a front pedestal and a rear pedestal on which the front and rear intermediate frames are respectively erected and fixed, characterized in that: means or mechanism for linearly moving the front pedestal and the rear pedestal toward and away from each other are provided on both of the front and rear pedestals so as to enable changing of spacing between the front and rear trick plates together with spacing between the rows of knitting needles.
- In accordance with the trick plate spacing changer according to the invention, linearly moving the front pedestal and the rear pedestal toward or away from each other by means of said means for moving allows the spacing between the front and rear trick plates to be easily changed. Furthermore, the whole parts on the front and rear pedestals including the front and rear trick plates and the front and rear rows of knitting needles evenly moves in parallel, so that a relative position of the trick plates and the knitting needles does not change before and after changing the spacing, resulting in dispensing with stroke adjustment of the knitting needles.
- The front and rear trick plates are mounted through a supporting body to a supporting shaft passing through plural intermediate frames in the width direction of the knitting machine, the intermediate frames being respectively erected and fixed on the front and rear pedestals, in a knitting-allowing manner together with the knitting needles.
- Said means or mechanism for linearly moving is preferably comprised of threaded shaft (s) screwed on and passing through the front pedestal and the rear pedestal in the front-rear direction. More preferably, one of the threaded shafts has a right-hand thread and the other of the threaded shaft has a left-hand thread. This allows the structure to be simplified and driving to be easily performed.
- Moreover, each of the front pedestal and the rear pedestal may be fastened as fixed to a base machine pedestal by way of clamp means or clamp device(s) so that hydraulic means is used for fastening and unfastening the front pedestal and the rear pedestal. This allows members attached to the front and rear pedestals including the trick plates to be easily fixed to the base machine pedestal and to be released from the fixing for moving, resulting in an easy and convenient manner of changing of the spacing.
- Furthermore, using a motor for rotating the threaded shaft (s) allows a desired operation to be performed in a short time without any labor.
- In addition to the above, it may be constructed as follows. A first take-up roll and a presser roll are oppositely provided in parallel at below of the knitting area formed by the rows of knitting needles; and one of the take-up roll and the presser roll is mounted on a front intermediate frame while the other is mounted on a rear intermediate frame. Then, a spacing between the opposite rolls in conformity with the thickness of the three-dimensional warp knitted fabric being knitted is automatically adjusted when the spacing between the trick plates is changed.
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- Figure 1 is a sectional view of a double raschel machine including an embodiment of the trick plate spacing changer in accordance with the invention.
- Figure 2 is a plan view of a machine pedestal part including a base machine pedestal and front and rear pedestals.
- Figure 3 is a sectional view of a threaded shaft part along the A-A line in Figure 2.
- Figure 4 is a sectional view along the B-B line in Figure 2, showing a pressured and fixed state of a clamp part.
- Figure 5 is a sectional view of a left-hand half of the above clamp part, showing a freed state of the clamp part.
- An embodiment of the trick plate spacing changer for double raschel machines in accordance with the invention will be described below with reference to embodiments shown in the drawings.
- Figure 1 is a sectional view of a double raschel machine including a trick plate spacing changer in accordance with the invention, the view being taken away in a direction vertical to the width direction of the knitting machine.
- In Figure 1, "1a" denotes a front knitting needle and "2a" denotes a front trick plate, which is mounted to a supporting body 3a. "1b" denotes a rear knitting needle and "2b" denotes a rear trick plate, which is mounted to a supporting
body 3b. The plural front andrear knitting needles 1a and 1b are arranged in parallel to form rows of knitting needles in a width direction of the knitting machine, that is, in a direction vertical to the sheet face of Figure 1. The front andrear trick plates - "4a" denotes a front intermediate frame, a plurality of which is erected and fixed with interval(s) in the width direction of the knitting machine on a
front pedestal 5a that is placed on the front side of abase machine pedestal 6. Thefront pedestal 5a is press-wise fastened onto thebase machine pedestal 6 as able to be unfastened and re-fastened by use of clamp means described later. A supportingshaft 7a is arranged to run through the upper part of theintermediate frame 4a in the width direction of the knitting machine, that is, in a direction vertical to the sheet face. Plural supporting bodies 3a are mounted to the supportingshaft 7a. Thefront trick plate 2a is laterally laid across and mounted to the respective supporting bodies 3a. - "4b" denotes a rear intermediate frame, a plurality of which is erected and fixed with a space in the width direction of the knitting machine on a
rear pedestal 5b provided on the rear side of abase machine pedestal 6. Thefront pedestal 5b is press-wise fixed on thebase machine pedestal 6 as able to be unfastened and re-fastened by use of clamp means described later. A supportingshaft 7b is arranged to run through the upper part of the above-mentionedintermediate frame 4b in the width direction of the knitting machine. Plural supportingbodies 3b are mounted to the supportingshaft 7b. Therear trick plate 2b is laterally laid across and mounted to the respective supportingbodies 3b. - "8a" and "8b" in Figure 1 denote respectively front and rear cam shafts.
Plural cams cam shafts cam lever 10b for driving the knittingneedle 1a is mounted to thefront cam shaft 8a while acam lever 10b for driving astitch comb 11b is mounted to therear cam shaft 8b, for the sake of convenience. In reality, however, the cam levers for respectively driving the knitting needle and a stitch comb are provided on the bothcam shafts - "12" denotes two threaded shafts respectively provided on the front-part and rear-part sides of the knitting machine, that is, on both sides in the width direction of the knitting machine. The threaded shafts respectively run through the
front pedestal 5a and therear pedestal 5b in the front-and-rear direction as shown in Figure 3. The extreme ends of the threadedshafts 12 are respectively supported bybearings base machine pedestal 6. A front-part threadedshaft 12a (right-hand part in Figure 2) of the threadedshaft 12 as awhole is arranged in the front pedestal 5awhile a rear-part (left-hand part in Figure 2) threadedshaft 12b of the threadedshaft 12 as a whole is arranged in therear pedestal 5b. As to form a male-female relation with the respective part of threaded shaft, nuts 13a1 and 13a2 are fixed in a built-in style in thefront pedestal 5a while nuts 13b1 and 13b2 are provided in a built-in style in therear pedestal 5b. Thus, each of the front-part and rear-part threadedshafts - "14" denotes a coupling, which couples together the front-part and rear-part threaded
shafts worm wheels 15 are respectively put tightly as fixed onto rear extreme ends of the joined threadedshafts 12, which are respectively arranged in the right and left sides of the knitting machine. Each of therespective worm wheels 15 is engaged with aworm 16 as shown in Figures 1 and 3. - As shown in Figure 2, two
worm shafts 17 respectively for theworms 16 on right and left sides of the knitting machine are coupled as fixed to atransmission shaft 18 by use ofrespective couplings 19, as respectively being supported by twobearings 20. Asprocket 21 is mounted on an end of one of theworm shafts 17 to be connected, through a connectingchain 25, with asprocket 24 mounted on ashaft 23 of amotor 22 that is provided on thebase machine pedestal 6. "26" denotes supporting metals for supporting thetransmission shaft 18. - Figures 4 and 5 are sectional views of clamp means for fixing the
front pedestal 5a and therear pedestal 5b to thebase machine pedestal 6. Figure 4 shows two clamp sites in thefront pedestal 5a while Figure 5 shows one clamp site. As shown in Figure 2, three pairs of clamp sites, namely six clamp sites as paired by every two of them, are provided on each of the front andrear pedestals - A structure of the clamp means will be described with reference to Figures 2, 4 and 5. Figure 4 is a sectional view taken along the line B-B in Figure 2. With respect to Figure 4, only the clamp means on left-hand side on the drawing will be explained at below since those on front-part and rear-part sides are equivalent in construction.
- In Figure 4, "27" denotes a cylinder member screwed as fixed onto the
front pedestal 5a by use of fourbolts 28 while "29" denotes a piston member provided so as to be capable of sliding in the up-and-down direction inside aninner space 27a of thecylinder member 27. Ashaft part 32 of thepiston member 29 passes through thecylinder member 27 and thefront pedestal 5a in the up-and-down direction. "30" denotes a belleville spring, or initially-coned disk spring, engaged with a small diameter part of aflange member 31, theflange member 31 being fit-wise fixed to one distal portion, i.e. an upper distal portion, of ashaft part 32 of thepiston member 29. Theflange member 31 is engaged with a concave portion on the upper surface side of thecylinder member 27. Thebelleville spring 30 is thus held between a bottom surface of the concave portion and theflange member 31. The other distal portion, i.e. a lower distal portion, of theshaft part 32 passes through along hole 43, which is formed on thebase machine pedestal 6 and which is long in the front-and-rear direction, so as to be capable of sliding therein. Onto the lower distal portion, adouble nut 33 is screwed from abottom surface 6a of thebase machine pedestal 6, directly or via a washer as shown in Figure 4. Thefront pedestal 5a and thebase machine pedestal 6 are thus tightly and closely fixed with each other by thebelleville spring 30. There applies force of 1.8 t (metric tons) per each clamp means in the case of this embodiment, by way of parenthesis. - The clamp means of the
rear pedestal 5b has a structure substantially same to that of the clamp means described above. Therefore, detailed description thereof is omitted here. - Mechanism for operations of fastening and unfastening the above clamp means will be described now.
- There is a
pipe 34 provided to communicate with theinner space 27a of thecylinder member 27 of the clamp means. Thepipe 34 is communicated to sixcylinder members 27, which are located separately, of thefront pedestal 5a as shown in Figure 2. Thepipe 34 is further communicated through acommunication pipe 44 to sixcylinder members 27, which are located separately, of the rear pedestal 5b. "35" denotes a "hydraulic jack" or hydraulic pump provided closely to themachine pedestal 6 and connected to an end of thepipe 34 as to pump oil into theinner space 27a of eachcylinder member 27. The "hydraulic jack" is arranged to use the hydraulic pressure obtained by the oil-pumping operation as to move thepiston member 29 and itsshaft part 32 against the extension-wise restoring force, or the resilience, of thebelleville spring 30. That is to say, the hydraulic means are used for performing operations of fastening and unfastening thefront pedestal 5a and therear pedestal 5b against thebase machine pedestal 6 by way of the clamp means. In the Figure 5, thepipe 34 is omitted from the illustration. - Whereas a structure of an embodiment of the invention of trick plate spacing changer has been described hereto, it will be explained in following a manner of operation of the embodiment.
- The numeral 36 shown in Figure 1 denotes a three-dimensional warp-knitted fabric being knitted. As is well known, a fabric having a predetermined thickness is formed as knitted with yarn fed from a group of
knitting reed 37 provided at above theknitting needles 1a and 1b. The thickness of the fabric is determined in accordance with spacing between thetrick plates - When changing of the thickness is happen to be needed, a
lever 35a of thehydraulic jack 35 is first operated as to pump and inject oil into each space upside of thepiston member 29 in theinner space 27a of eachcylinder member 27. Thepiston member 29 and itsshaft part 32 thereby move to a direction shown by anarrow 38 in Figure 5 against the extension-wise restoring force of thebelleville spring 30. This results in a slight gap between thebottom surface 6a of thebase machine pedestal 6 and the catching part, i.e. a washer or the like, of thedouble nut 33. In a concrete example, the gap is 0.4 mm. - A press-wise fixing of the
front pedestal 5a and therear pedestal 5b against thebase machine pedestal 6 is thus released. Then, a driving signal is sent to themotor 22 as to rotate the bothworms 16 on thetransmission shaft 18, via theshaft 23, thesprocket 24, the connectingchain 25 and thesprocket 21; theworms 16 being located on right-hand and left-hand sides of the knitting machine. Such rotation of theworms 16 makes the two threadedshafts 12 on right-hand and left-hand sides of the knitting machine to simultaneously rotate, by rotating the bothworm wheels 15. - When to widen the spacing between the
trick plates transmission shaft 18 is rotated in the counter-clockwise direction in view from a side associated with themotor 22. This makes thefront pedestal 5a to move frontward and makes therear pedestal 5b to move rearward so that the front andrear pedestals intermediate frames shafts bodies 3a and 3b, thetrick plates knitting needles 1a and 1b also increases by a same distance with increase of the spacing between the front andrear pedestals knitting needle 1a and thetrick plate 2a as well as a positional relationship between the knitting needle 1b and thetrick plate 2b do not change. Thus, no stroke adjustment of therespective knitting needles 1a and 1b is necessary in changing the spacing between thetrick plates - When to narrow the spacing between the
trick plates transmission shaft 18 is rotated in the clockwise direction contrary to the above. This makes thefront pedestal 5a to linearly approach therear pedestal 5b. When pumping of oil to theinner space 27a of therespective cylinder members 27 is lifted after such positional adjustment, the extension-wise restoring force by thebelleville spring 30 makes thepiston member 29 and itsshaft part 32 to their original positions. Then, both of thefront pedestal 5a and therear pedestal 5b are held as fixed on thebase machine pedestal 6. - Plural take-up rolls are provided below the knitting area, which is formed by the rows of the knitting needles, as arranged in parallel to the width direction of the knitting machine, that is, a direction vertical to the sheet surface of Figure 1. A first take-
up roll 39 among the plural take-up rolls is located nearest to the knitting area and arranged to face to apresser roll 40. When distance between thetrick plates up roll 39 and thepresser roll 40 is automatically changed in conformity with thickness of the three-dimensional warp knittedfabric 36 that is being knitted; by following construction: the first take-up roll 39 and thepresser roll 40, which are opposed with each other, are respectively provided in one body with theintermediate frames intermediate frames up roll 39 is provided in one body with the frontintermediate frame 4a, and thepresser roll 40 is provided in one body with theintermediate frame 4b, spacing between the first take-up roll 39 and thepresser roll 40 is changed by same amount with change of the spacing between the front andrear pedestals - In this embodiment, a motor is used in changing the trick plate spacing. It goes without saying, however, that not only a motor but also the other driving means may be used, such that a handle may be mounted to the transmission shaft so as to be manually rotated, for example.
- As described above, in accordance with the trick plate spacing changer of the invention, the front and
rear pedestals rear trick plates knitting needles 1a and 1b for the trick plates would not change before and after changing the spacing. This results in dispensing with stroke adjustment of the knitting needles after changing the trick plate spacing. - Furthermore, the above-mentioned means for moving are threaded
shafts 12, which run through thefront pedestal 5a and therear pedestal 5b as screwed on them, in the front-and-rear direction. Preferably, one of the threadedshafts 12 has a right-hand thread while the other has a left-hand thread. This simplifies a structure of the trick plate spacing changer, resulting in easy driving. - Moreover, the hydraulic means are used for pressing and fixing the
front pedestal 5a and therear pedestal 5b to thebase machine pedestal 6 and for releasing the fixing, so that a changing operation can be easily and conveniently performed. - The invention is particularly applicable to a double raschel machine comprising two rows, front and rear, of knitting needles, wherein the spacing of rows of the front and rear knitting needles and the spacing of the front and rear trick plates belonging to the knitting needles should be changed in changing the thickness of a fabric to be knitted.
Claims (6)
- A trick plate spacing changer for double raschel machines that is comprised of: front and rear, two rows of knitting needles, front and rear trick plates contingent on the front and rear rows of knitting needles, front and rear intermediate frames respectively supporting the front and rear rows of knitting needles and the trick plates in a knitting-allowing manner, and a front pedestal and a rear pedestal on which the front and rear intermediate frames are respectively erected and fixed, characterized in that
means for linearly moving the front pedestal and the rear pedestal toward and away from each other are provided on both of the front and rear pedestals so as to enable changing of spacing between the front and rear trick plates together with spacing between the rows of knitting needles. - The trick plate spacing changer for double raschel machines according to Claim 1, wherein said means for linearly moving is comprised of a threaded shaft or threads shafts screwed on and passing through the front pedestal and the rear pedestal in the front-rear direction.
- The trick plate spacing changer for double raschel machines according to Claim 2, characterized in that one of the threaded shafts has a right-hand thread and another of the threaded shafts has a left-hand thread.
- The trick plate spacing changer for double raschel machines according to any one of Claims 1 to 3, characterized in that the front pedestal and the rear pedestal are respectively fastened as fixed to a base machine pedestal by clamp means; and that hydraulic means is used for fastening and unfastening the front pedestal and the rear pedestal to and from the base machine pedestal.
- The trick plate spacing changer for double raschel machines according to any one of Claims 2 to 4, wherein the threaded shaft is rotated by a motor.
- The trick plate spacing changer for double raschel machines according to any one of Claims 1 to 5, wherein a first take-up roll and a presser roll are oppositely provided in parallel at below of a knitting area formed by said rows of knitting needles; and wherein either of the first take-up roll and the presser roll is mounted on a front intermediate frame while the other is mounted on a rear intermediate frame.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001400886A JP3736458B2 (en) | 2001-12-28 | 2001-12-28 | Trick plate interval changing device for double raschel machine |
JP2001400886 | 2001-12-28 | ||
PCT/JP2002/013454 WO2003057959A1 (en) | 2001-12-28 | 2002-12-24 | Trick plate spacing changer for double raschel machines |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1460159A1 true EP1460159A1 (en) | 2004-09-22 |
EP1460159A4 EP1460159A4 (en) | 2007-01-31 |
EP1460159B1 EP1460159B1 (en) | 2008-02-13 |
Family
ID=19189692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02786198A Expired - Fee Related EP1460159B1 (en) | 2001-12-28 | 2002-12-24 | Trick plate spacing changer for double raschel machines |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1460159B1 (en) |
JP (1) | JP3736458B2 (en) |
KR (1) | KR100650237B1 (en) |
CN (1) | CN100537870C (en) |
DE (1) | DE60225061T2 (en) |
ES (1) | ES2297027T3 (en) |
WO (1) | WO2003057959A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1647619A1 (en) | 2004-10-18 | 2006-04-19 | Nippon Mayer Ltd. | Method and apparatus for fabricating a three-dimensional warp knitted fabric having varied cross-sections as well as thus obtained fabric |
CN100434586C (en) * | 2005-04-08 | 2008-11-19 | 卡尔迈耶纺织机械有限公司 | Double neilsbed tricot machine |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBS20060060A1 (en) * | 2006-03-16 | 2007-09-17 | Santoni & C Spa | LINEAR TEXTILE MACHINE |
DE102008047684B4 (en) * | 2008-09-18 | 2016-12-15 | Karl Mayer Textilmaschinenfabrik Gmbh | Knitting machine, in particular warp knitting machine |
KR101021579B1 (en) * | 2010-10-29 | 2011-03-17 | 김재화 | Method for adjusting interlacing length in double warp knitting machine and double warp knit fabric manufactured thereby |
CN102031629A (en) * | 2010-12-15 | 2011-04-27 | 常州市武进五洋纺织机械有限公司 | Mechanism for automatically regulating space of knocking-over bar of warp knitting machine |
CN102704180A (en) * | 2012-06-04 | 2012-10-03 | 江南大学 | Double needle bed warp knitting machine with on-line movable needle beds for producing irregularly-shaped space fabric |
CN102978823A (en) * | 2012-11-23 | 2013-03-20 | 福建福联精编有限公司 | Special-shaped three-dimensional knitted fabric and manufacturing method thereof |
ITBI20130013A1 (en) | 2013-11-05 | 2015-05-06 | Cofilea Srl Uninominale | TEXTILE ARTICLE OF THE MULTILAYER TYPE WITH INTERNAL LAYER OF ELECTRIFIED FABRIC AND RELATIVE PROCESS OF MANUFACTURE |
CN104562420B (en) * | 2015-01-28 | 2016-08-17 | 江苏润源控股集团有限公司 | Double rib warp loom work bar space governor motion |
CN105019133A (en) * | 2015-06-29 | 2015-11-04 | 常州市第八纺织机械有限公司 | Sinker swing mechanism |
CN106192189A (en) * | 2016-09-19 | 2016-12-07 | 江南大学 | There is the weaving method of the warp-knitted spacer fabric of different-thickness |
CN106702587A (en) * | 2017-01-11 | 2017-05-24 | 福建省鑫港纺织机械有限公司 | Structure for adjusting separation distance of knocking-over bars of two-needle-bar warp knitting machine |
KR102093617B1 (en) * | 2019-10-08 | 2020-03-26 | 주식회사 디앤디기계 | Swing device for double-raschel knitting machine for forming floating pile yarn |
CN112342680B (en) * | 2020-11-12 | 2022-02-01 | 五洋纺机有限公司 | Double-needle-bed warp knitting machine with horizontally reciprocating hair combs |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3221520A (en) * | 1963-02-27 | 1965-12-07 | Rudolph G Bassist | Double-needle-bed warp knitting machine |
US3491558A (en) * | 1967-02-22 | 1970-01-27 | Karl Kohl | Needle mechanism for a raschel warp knitting and method of operating the same |
DE3219860A1 (en) * | 1982-05-27 | 1983-12-08 | H. Stoll Gmbh & Co, 7410 Reutlingen | FLAT KNITTING MACHINE |
JPH1150364A (en) * | 1997-07-31 | 1999-02-23 | Nippon Mayer Ltd | Ground reed position controlling mechanism for double raschel machine |
JP2000080545A (en) * | 1998-09-03 | 2000-03-21 | Nippon Mayer Ltd | Device for adjusting distance between trick plates in double raschel loom |
-
2001
- 2001-12-28 JP JP2001400886A patent/JP3736458B2/en not_active Expired - Fee Related
-
2002
- 2002-12-24 WO PCT/JP2002/013454 patent/WO2003057959A1/en active IP Right Grant
- 2002-12-24 KR KR1020047008857A patent/KR100650237B1/en active IP Right Grant
- 2002-12-24 ES ES02786198T patent/ES2297027T3/en not_active Expired - Lifetime
- 2002-12-24 EP EP02786198A patent/EP1460159B1/en not_active Expired - Fee Related
- 2002-12-24 CN CNB028260635A patent/CN100537870C/en not_active Expired - Fee Related
- 2002-12-24 DE DE60225061T patent/DE60225061T2/en not_active Expired - Lifetime
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO03057959A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1647619A1 (en) | 2004-10-18 | 2006-04-19 | Nippon Mayer Ltd. | Method and apparatus for fabricating a three-dimensional warp knitted fabric having varied cross-sections as well as thus obtained fabric |
CN100434586C (en) * | 2005-04-08 | 2008-11-19 | 卡尔迈耶纺织机械有限公司 | Double neilsbed tricot machine |
Also Published As
Publication number | Publication date |
---|---|
CN1608154A (en) | 2005-04-20 |
JP3736458B2 (en) | 2006-01-18 |
EP1460159A4 (en) | 2007-01-31 |
ES2297027T3 (en) | 2008-05-01 |
KR20040068576A (en) | 2004-07-31 |
CN100537870C (en) | 2009-09-09 |
JP2003201655A (en) | 2003-07-18 |
WO2003057959A1 (en) | 2003-07-17 |
DE60225061D1 (en) | 2008-03-27 |
DE60225061T2 (en) | 2008-05-21 |
KR100650237B1 (en) | 2006-11-27 |
EP1460159B1 (en) | 2008-02-13 |
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