TWI732201B - A weaving machine system for pulling binding warp yarns from a shed into a gap between the upper and lower outer fabrics of a distance fabric - Google Patents

Abstract

The invention relates to a weaving machine system for pulling binding warp yarns (2) out of a shed into a gap (T0) between an upper outer fabric (T1) and a lower outer fabric (T2) of a distance fabric during formation of loops of binding yarns by means of a manipulating bar (4) which is coupleable to at least two electromagnets (5) arranged reversibly displaceably above the upper outer fabric (T1) in the direction of the take-up motion of the distance fabric (T) and back. The manipulating bar (4) is provided with permanent magnets (44) at the points at which it is coupleable to the electromagnets (5), the permanent magnets being arranged in Halbach Arrays (440), whereby the electromagnets (5) are in the lower part provided with a sliding part (55) made of non-magnetic material, in which the lower and upper pole pieces (53,54) of the respective electromagnet (5) are terminated.

Description

A loom system used to pull the bound warp yarn from the shed to the gap between the upper outer fabric and the lower outer fabric of the fabric

The present invention relates to a loom system for pulling the bound warp yarn from the shed to the gap between the upper outer fabric and the lower outer fabric of the fabric during the formation of the loop of the bound warp yarn by a joystick, wherein The joystick can be coupled to at least two electromagnets placed above the upper outer fabric. The electromagnets are reversibly movable and placed in a direction away from the fabric and the winding action and can return.

The distance fabric includes two outer fabrics and a plurality of interlocking yarns connected to the outer fabric and arranged between them.

The US 8,015,999 B2 patent case describes a method for forming this type of fabric. The distance fabric is formed on a loom from a two-warp system, where the basic warp system only weaves two outer fabrics, and the knot warp system is used to weave two outer fabrics. Fabric, and during the interruption of weaving, tie The binding warp yarns are formed by pulling the binding warp yarns from the shed into the gap between the two outer fabrics by the drawing device of the binding warp yarns.

Pulling out the binding warp from the shed during the weaving interruption, after the binding warp crosses, the operator inserts the pull rod from one side of the shed to the shed for manual execution.

The object of the present invention is to provide a loom system that draws the bound warp yarn from the shed to the gap during the formation of the loops of the bound yarn in the gap between the outer fabric and the lower outer fabric above the fabric.

The object of the present invention is achieved by the loom system, which mainly includes a joystick with electromagnets arranged in a Halbach Array. The electromagnet is attached with a sliding part of non-magnetic material at its bottom, and each electromagnetic The lower and upper pole pieces of iron are terminated by sliding parts.

Due to the length of the joystick, lightweight, high-rigidity materials are more suitable for its production, such as carbon composite, titanium, or hard anodized duralumin.

In order to promote the production of the joystick, it is more advantageous if the joystick includes a light-weight, high-rigidity support core at its center, and the steering end piece and the sliding end piece are connected to the edge of the support core.

The support core can be made of carbon composite, titanium, or hard anodized duralumin or other suitable materials.

In order to enhance the strength of the joystick and reduce wear, at least a part of the joystick is overlapped with a cover plate, which has high-strength materials selected from the group consisting of stainless steel.

In a preferred embodiment, the joysticks are completely overlapped with high-strength materials.

With the help of electromagnets, it is very advantageous if the permanent magnets are arranged at both ends of the joystick in a Halbach array, preferably the joystick's operating end piece and sliding end piece.

The Halbach array of permanent magnets is formed by a row of at least 5 permanent magnets, which is perpendicular to the length of the joystick, and the Halbach array is arranged with its strong side facing up to the electromagnet.

In order to obtain the best holding and transmission of the force of the joystick, the lower pole piece and the upper pole piece of the electromagnet are terminated with a workpiece extending to the front lower pole piece and the upper pole piece of the sliding part.

The workpieces of the above-mentioned lower pole piece and upper pole piece of the electromagnet are arranged perpendicular to the row direction of the permanent magnets arranged in the Halbach array.

In order to make the system more reliable, the loss sensor of the joystick is installed in each electromagnet.

1: Bottom warp system

2: Knotted warp system

3: Beat-up mechanism

4: joystick

5: Electromagnet

31: Reed

40: Coating of joystick

41: Support core of joystick

42: The control end piece of the joystick

43: Sliding end piece of joystick

44: permanent magnet

45: fixed hole

51: The core of the electromagnet

52: coil of electromagnet

53: Lower pole piece

54: Upper pole piece

55: Sliding part of electromagnet

56: Loss sensor of joystick

57: cover

420: Manipulate the free end of the tail piece

421: Groove of joystick tweezers

430: Sliding the free end of the tail piece

431: Hole on the free end of the sliding end piece

440: Halbach array of permanent magnets

531: Workpiece of the lower pole piece

540: Front part of the upper pole piece

541: Workpiece of the upper pole piece

4211: The leading edge of the groove

4311: The leading edge of the hole

L: Heald shaft

P: Shed

T: distance fabric

T0: The gap between the upper outer fabric and the lower outer fabric

T1: Upper and outer fabric

T2: bottom outer fabric

The embodiment of the loom system is schematically shown in the figure according to the present invention. The first figure is a schematic diagram of the loom system mechanism with a joystick in the shed, and the second figure is a diagram with a joystick in the gap between the two outer fabrics. Schematic diagram of the loom system. Figure 3 is a perspective view of a joystick without a cover plate, Figure 4 is a perspective view of a joystick with overlapping cover plates, Figure 5 is a schematic diagram of the arrangement of permanent magnets in the Halbach array, and Figure 6 is The cross-sectional view of the electromagnet, Figure 7 is a perspective view of the electromagnet without winding, and Figure 8 is a perspective view of the electromagnet without a right side cover.

A loom system for pulling the bound warp yarn 2 from the shed P to the gap T0 between the upper outer fabric T1 and the lower outer fabric T2 of the fabric T, by means of a joystick that can be coupled to at least two electromagnets 5 4 During the formation of the knotted yarn loop, the electromagnet 5 is attached to the upper outer fabric T1 and is reversibly movably arranged at a distance from the winding direction of the fabric T and can be returned. It will match the reference diagram of the loom system The formula briefly describes the period during which the joystick 4 is inserted into the shed P (Figure 1) and is grasped by the electromagnet 5, and the next step is to pull the bound warp yarn 2 to the gap T0 between the outer fabrics T1 and T2 (Figure 2) . The number of electromagnets 5 can be more, for example, three or four. Two of the electromagnets are arranged on the edge of the joystick 4, and the remaining electromagnets are set on the center of the joystick 4, so the joystick 4 has The permanent magnets 44 of the Halbach Array 440 are at various points.

The distance fabric T is formed by a two-warp yarn system, so the bottom warp yarn system 1 is only used for weaving the two outer fabrics T1, T2, while the interlocking warp yarn 2 system is used for weaving the two outer fabrics T1, T2, and the knitting process is interrupted. In the meantime, by pulling the bound warp yarn 2 from the shed P to the gap T0 between the outer fabrics T1 and T2, a loop of the bound yarn 200 is formed. Both warp yarn systems 1 and 2 pass the warp yarns through the heald shaft L and the reed 31 of the beat-up mechanism 3 in a conventional manner.

Figure 1 shows that after the knotted warp yarns 2 are crossed, the joystick 5 is inserted before the shed P. As a result, a part of the upper outer fabric T1 is clamped between the electromagnet 5 and the joystick 4. In the next step, the joystick 4 is still held by the electromagnet 5 and moved to a certain distance from the winding direction of the fabric T. At the same time, the joystick 4 pulls the loops of the warp yarn 2 to the outer fabric T1. In the gap between T2, the bound warp yarns 2 are synchronously released from the respective warp yarn axes.

In the embodiment shown in Figs. 3 and 4, the joystick 4 includes a support core 41 made of a light-weight, high-rigidity material. In one embodiment, the support core is made of carbon composite, which can ensure sufficient rigidity even if the length is greater than 1500 millimeters (mm). The support core 41 may be made of other suitable materials, such as titanium or hard anodized duralumin. At the end of the supporting core 41, the manipulating tail piece 42 and the sliding tail piece 43 are connected to the supporting core 41, and the permanent magnet 44 is installed on the supporting core 41 by the Halbach array 440. The operating tail piece 42 and the sliding tail piece 43 are different from each other. The operating tail piece 42 of the joystick is facing the side of the device that inserts the joystick into the shed P and pulls it out of the shed P, not shown. , And the sliding tail piece 43 is arranged on the opposite side. The fixing hole 45 is provided in the joystick 4 to provide for accurate positioning of the joystick 4 when the joystick 4 is manipulated during the interruption of the knitting process, especially when the joystick 4 is returned to the shed P and pulled out from the shed P Before, and before the joystick 4 was inserted into the shed P again before being held by the electromagnet.

The Halbach array 440 of the electromagnet 44 is composed of at least 5 rows of cube-shaped magnets. As shown in the embodiment, these rows are oriented in a direction perpendicular to the length of the joystick 4 and Haier The Baker array is arranged with its strong side facing the electromagnet 5 upward. In the particular embodiment shown, nine Halbach arrays 440 are used, and each array contains five permanent magnets 44. The permanent magnets 44 in the respective Halbach arrays are glued to each other, and each row of the Halbach array is glued to the holes formed on the joystick 4 for the manipulation tail piece 42 and the sliding tail piece 43.

The manipulation tail piece 42 of the manipulation lever 4 includes a groove 421 at its free end 420 for clamping the insertion mechanism by manipulation forceps. The front edge 4211 of the groove 421 is used as the sensing edge of the loss sensor 56 provided on the joystick 4 of each electromagnet 5.

The sliding end piece 43 has its edges rounded to reduce the risk of yarn jamming, and a hole 431 is provided in the free end 430 of the sliding end piece 43, and the front edge 4311 of the hole 431 is regarded as being arranged at The sensing edge of the loss sensor 56 of the joystick 4 of each electromagnet 5.

In the embodiment not shown, the joystick 4 can be integrally formed, wherein the permanent magnets 44 are installed at both ends of the joystick 4. In this embodiment, the end piece at the free end of the joystick 4 is also the same as or similar to the free ends 420, 430 of the control end piece 42 and the sliding end piece 43.

In order to increase the strength and durability of the joystick 4, at least a portion of the joystick 4 is in contact with the binding warp yarn 2, and a cover plate 40 of a high-strength material, such as high-strength stainless steel, is overlapped. According to the embodiment in FIG. 4, the joystick 4 extends along its full length until its free ends 420, 430 overlap with the cover plate 40. Therefore, the surface of the joystick 4 in contact with the yarn is formed with a smooth, strong and durable coating.

The electromagnet 5 is composed of a core 51 and is provided with a winding 52 that surrounds the core 51 to form a coil. The lower magnetic pole piece 53 and the upper magnetic pole piece 54 are arranged on the core 51. The lower pole piece 53 is inlaid on the non-magnetic sliding member 55, which provides a smooth surface to allow the sliding member 55 to slide smoothly over the upper outer fabric T1 and the warp yarn 1. On the front side of the sliding member 55, the lower pole piece 53 is terminated by a workpiece 531 of the lower pole piece 53. The upper magnetic pole piece 54 is the front part 540 of the upper magnetic pole piece 54 by arranging the workpiece 541 of the upper magnetic pole piece 54 near the workpiece 531 of the lower magnetic pole piece 53 to terminate on the sliding part 55, so the sliding part 55 and the lower magnetic pole piece 53 The shapes of the workpieces 531 and 541 of the upper pole piece 54 are adapted to the shortest possible loop of the binding warp yarn 2 when the binding warp yarn 2 is drawn from the shed P to generate the maximum operating force of the joystick 4. The electromagnet 5 is provided with a loss sensor 56 of the joystick 4 in the two directions of actuation, which is connected to the control system of the loom. In a specific embodiment, the loss sensor 56 is composed of an optical signal The loss sensor 56 of the right electromagnet 5 monitors the position of the leading edge 4211 of the groove 421 to the free end 420 of the control tail piece 42 of the joystick 4, and the loss sensor 56 of the right electromagnet 5 , And the loss sensor of the left electromagnet 5 monitors the position of the front edge 4311 of the hole 431 on the free end 430 of the sliding tail piece 43 of the joystick 4. The electromagnet 5 is provided with a cover 57 on the rear side and the side.

The size and spacing of the workpiece 531 of the lower pole piece 53 and the workpiece 541 of the upper pole piece 54 are combined with the size of the permanent magnet 44 of the joystick 4 provided with the Halbach array 440. In one embodiment, the widths of the workpieces 531, 541 of the lower pole piece 53 and the upper pole piece 54 are equal to the length of the side of the permanent magnet 44 and the distance between the workpieces 531, 541 of the lower pole piece 53 and the upper pole piece 54, and are also the same. It is equal to the side length of the permanent magnet 44. The lengths of the workpieces 531, 541 of the lower pole piece 53 and the upper pole piece 54 are equal to or less than the length of the Halbach array 440, for example, arranged in adjacent rows of the permanent magnets 44 of the Halbach array.

The number of permanent magnets 5 can be even more, for example, three or four, two of which are arranged at the edge and the remaining at the middle. Therefore, the joystick 4 has permanent magnets 44 with a Halbach array 440 on each of them. point.

The number of permanent magnets 44 in the Halbach array is 4n+1, so the minimum number is 5.

The present invention is applied to a knitting machine to make a distance fabric, wherein the system for pulling the combined yarn from the shed to the gap between the upper outer fabric and the lower outer fabric is formed during the formation of the binding yarn loop .

1: Bottom warp system

2: Knotted warp system

3: Beat-up mechanism

4: joystick

5: Electromagnet

31: Reed

P: Shed

T: distance fabric

T0: The gap between the upper outer fabric and the lower outer fabric

T1: Upper and outer fabric

T2: bottom outer fabric

Claims (11)

A loom system that is used to pull the bound warp yarns (2) from the shed to the gap (T0) between the upper outer fabric (T1) and the lower outer fabric (T2) of the fabric. The joystick (4) coupled to at least two electromagnets (5) pulls the knotted warp during the formation of the loop of the knotted warp, and the electromagnets are reversibly and movably arranged on the upper outer fabric (T1) Above, and move and return in the direction of the winding action of the distance fabric (T), characterized in that: the joystick (4) has a permanent magnet (44), and the permanent magnet is arranged to be coupled to the electromagnetic Iron (5), and the permanent magnets are arranged in a Halbach array (440), so the electromagnets (5) are provided with sliding parts (55) made of non-magnetic materials at the bottom, and each of the electromagnetic The lower pole piece (53) and the upper pole piece (54) of the iron (5) are terminated by the sliding part. The loom system described in item 1 of the scope of patent application is characterized in that the joystick (4) is made of a lightweight, high-rigidity material selected from the group consisting of carbon composites, titanium or hard anodized duralumin alloys Made. The loom system described in item 1 of the patent application is characterized in that the joystick (4) includes a support core (41), the support core is made of a lightweight, high-rigidity material, and the support core The edge system is connected with a steering end piece (42) and a sliding end piece (43), whereby the support core (41) is made of carbon composite, titanium or hard anodized hard aluminum. The loom system described in any one of items 1 to 3 in the scope of the patent application is characterized in that at least a part of the joystick (4) overlaps with the cover plate (40), and the cover plate is made of stainless steel Made of groups of high-strength materials. The loom system described in item 4 of the scope of patent application is characterized in that the joystick (4) is completely overlapped with high-strength materials. The loom system described in any one of items 1 to 3 in the scope of the patent application is characterized in that the permanent magnets (44) are arranged at both ends of the joystick (4) in a Halbach array (440). The loom system described in item 6 of the scope of patent application is characterized in that the permanent magnet (44) is located in the control end pieces (42) and the sliding end pieces (43) of the joystick. The loom system described in any one of items 1 to 3 in the scope of the patent application is characterized in that the Halbach array (440) of the permanent magnets is a row composed of at least 5 permanent magnets (44) Formed, whereby the rows are arranged perpendicular to the length of the joystick (4), and the Halbach array (440) is arranged in the shed with its strong side facing each of the electromagnets . The loom system described in any one of items 1 to 3 of the scope of patent application is characterized in that the lower magnetic pole pieces (53) and the upper magnetic pole pieces (54) of the electromagnet are based on the lower magnetic pole pieces ( 53) and a plurality of workpieces (531, 541) of the upper pole piece (54) are terminated, and these workpieces extend to the front of the sliding part (55). The loom system described in item 9 of the scope of patent application is characterized in that the workpieces (531, 541) of the lower pole pieces (53) and the upper pole pieces (54) are arranged perpendicular to the Halbach array ( 440) is set in the direction of the permanent magnet (44). The loom system described in any one of items 1 to 3 in the scope of the patent application is characterized in that the loss sensor (56) of the joystick (4) is arranged in the electromagnet (5).

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