Weaving loom weft feeding device

Abstract

The present invention relates to a weaving loom weft feeding device, and to a weaving loom weft feeding device comprising: a weft feeder (100) which guides and restrains a plurality of supplied wefts (32, 34) while the wefts are spaced a predetermined distance apart and flatly aligned, and which moves horizontally; a weft retractor (200) having tongs (210), which are provided at a longitudinal end thereof and are driven by a driving means so as to draw one of the plurality of wefts (32, 34) into a shed created between warps; and a weft cutter (300), which is provided at the front end of the weft feeder (100) so as to cut the supplied weft when the weft is drawn a predetermined length, and thus different types of wefts can be automatically selected and supplied during a 2D woven fabric weaving process such that fabrics with various designs can be provided while productivity is ensured.

Description

Weft feeding device of a woven loom

[0001] The present invention relates to a weft supply device for a woven loom, and more specifically, to a weft supply device for a woven loom that enables the expression of various designs by selectively supplying various types of weft during the weaving process.

[0002] In general, woven refers to a fabric woven by intersecting warp and weft yarns. It has the characteristics of low elasticity, high friction, and easy sewing. Depending on the method of intersecting warp and weft yarns, it is divided into plain weave, twill weave, and satin weave (satin, satin).

[0003] These woven fabrics can be made in a variety of structures and thicknesses, and are used in a variety of products, including clothing, bags, and shoes.

[0004] Among these, woven fabrics formed with ribbon yarns in the shape of a tape of a predetermined width are mainly used in the manufacture of bags, tents, etc., and fabrics woven using such ribbon yarns as weft yarns are generally called 2D woven fabrics, and a loom for weaving the above 2D woven fabrics is called a 2D woven loom.

[0005] These 2D woven fabrics are used for carbon fiber, geotextile, agricultural mulching film fabric, etc., and the 2D woven loom for manufacturing the 2D woven fabric is operated by passing the weft thread between the warp threads that are hung on the held to form an opening using a separate weft thread supply and cutting device without using a bobbin, and cutting the weft thread when it is supplied to a length corresponding to the width of the fabric. An example of the device for supplying and cutting the weft thread is examined below.

[0006] Figures 1 and 2 are drawings showing a warp supply device of a conventional woven loom.

[0007] A weft supply device of a conventional woven loom comprises a ring (22) on which a weft is caught at an end, a pusher (24) that advances forward by the elasticity of a spring (23) when the weft is caught on the ring (22) and retreats pneumatically when the weft is released, and a gripper (20) for supplying the weft (30) to the warp while reciprocating across the fabric; a guide (50) positioned on one side of the fabric to be woven and formed with a guide slit (52) through which a weft (30) made of a ribbon yarn supplied from a bobbin (not shown) is guided, and guides the weft (30) to be positioned at a height at which the gripper (20) can pull it; A push plate (70) positioned at the end of the bracket (60) constituting the above-mentioned weft supply device and moved back and forth by a spring (72) so as to restrain the end of the weft (30) that has passed through the guide (50) and is inclined so that the lower part protrudes slightly more than the upper part; A support plate (80) provided in front of the push plate (70) so as to be rotatable up and down within a predetermined angle so as to be in close contact with the push plate (70) when lowering and restrain the weft (30) but having a support groove (82) formed to hold the weft so that it does not fall out when lowering, and having an upper surface formed as a curved surface so that the weft (30) can slide when raised and lowered; It is configured to include a pair of blades (92)(94) provided at predetermined positions on the side of the support plate (80) and at predetermined positions of the bracket (60) so that the weft (30) is cut when the support plate (80) is lowered and the cut weft (30) is restrained between the support plate (70) and the support plate (80).

[0008] In a conventional 2D woven loom configured as described above, as shown in Fig. 1, the weft (30) supplied from the bobbin passes through the guide slit (52) of the guide (50) and its end is kept in a state of being restrained between the press plate (70) and the support plate (80).

[0009] Afterwards, when the ring (22) of the gripper (20) for supplying the weft thread catches the weft thread (30) between the guide (50) and the pusher (70) and the pusher (24) moves forward to catch the weft thread (30) and moves across the support plate (80), the support plate (80) rotates upward as shown in FIG. 2, and at this time, the weft thread slides along the upper surface of the support plate (80), so that the support plate (80) does not obstruct the rise, and accordingly, the end of the weft thread (30) that was restrained between the pusher (70) and the support plate (80) is released.

[0010] Afterwards, as the gripper (20) for supplying the warp yarn moves, the warp yarn (30) is released from the bobbin and is pulled through the opening between the warp yarns.

[0011] And after the above-mentioned weft is released to a predetermined length (a length wider than the width of the fabric), the support plate (80) is lowered again as shown in FIG. 1, and the weft (30) is caught at the end of the support plate (80) and is lowered while being inserted into the support groove (82), so that the middle of the weft is positioned and restrained between the push plate (70) and the support plate (80), and in this process, when the weft (30) is cut by a pair of blades (92) (94), the upper part of the cut end is maintained in a restrained state between the push plate (70) and the support plate (80) and waits to be pulled by the next weft supply gripper (20).

[0012] However, the weft supply device of the above-mentioned conventional woven loom has a problem in that the weft is twisted during the process of pulling the weft because the weft supply gripper (20) is formed in a ring shape, and in addition, the position of the device for supplying and cutting the weft is fixed, so only one type of weft can be supplied at a time, and when a different type of weft is to be supplied, the worker must remove the previously supplied weft, place a different weft, and then weave, and this must be repeated continuously, so there is a problem in that the production time is long in order to manufacture 2D woven fabrics of various colors, and it is virtually impossible to have the weft have various colors when weaving 2D woven fabrics.

[0013] *Prior art literature

[0014] Registered Patent No. 10-2107781

[0015]

[0016] The purpose of the present invention to solve the above-mentioned problem is to provide a weft supply device for a woven loom that can automatically select and supply different types of wefts during the weaving process of a 2D woven fabric by configuring a weft supply port to be movable and guiding a plurality of wefts in a state of being spaced apart by a predetermined interval, thereby ensuring productivity and enabling the provision of fabrics with various designs.

[0017] In addition, another object of the present invention is to provide a weft feeding device for a woven loom in which the weft pulling member for pulling the weft is formed in a clamp shape so that the weft does not twist, thereby preventing the occurrence of defects in the fabric.

[0018] The present invention for achieving the above object is characterized by a weft supply device of a woven loom comprising: a weft supply port that guides a plurality of supplied wefts in a flat, aligned state at a predetermined interval and moves left and right; a weft pulling port having a tong driven by a driving means at the end to pull one of the plurality of wefts between openings formed by a warp; and a weft cutting port that is provided at the tip of the weft supply port and cuts the supplied weft when it has been pulled by a predetermined length.

[0019] According to the present invention configured as described above, the weft supply port can automatically move the weft to be supplied to the pulling position while moving a predetermined distance, so that various types of weft can be automatically selected and supplied, thereby improving productivity and enabling the provision of fabrics with various designs.

[0020] In addition, since the above-mentioned weft pulling member is formed in a clamp shape, the weft does not twist during the pulling process, which has the effect of preventing defects in the fabric.

[0021] Figures 1 and 2 are perspective views showing the weft supply and cutting device of a conventional 2D woven loom.

[0022] Figures 3 and 4 are perspective views showing the weft supply and cutting device of the 2D woven loom according to the present invention.

[0023] Figure 5 is a drawing showing a weft supply port of a weft supply and cutting device of a 2D woven loom according to the present invention.

[0024] Figure 6 is a drawing showing an example of the operation of the weft pulling mechanism of the weft supply and cutting device of the 2D woven loom according to the present invention.

[0025] Figure 7 is a drawing showing an example of the movement of the weft supply port of the weft supply and cutting device of the 2D woven loom according to the present invention.

[0026] *Explanation of symbols for major parts of the drawing*

[0027] 32, 34: Weiss

[0028] 100: Weft supply port

[0029] 110: Guide absence

[0030] 130: Slider

[0031] 140: Guide to the Weasel

[0032] 150: Forward roller

[0033] 160: Tension adjustment device

[0034] 200: Weasel Tow

[0035] 210: Forceps

[0036] 300: Weft cutting hole

[0037] Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

[0038]

[0039] A weft supply device of a woven loom according to the present invention comprises a weft supply port (100) that guides and restrains a plurality of wefts (32) (34) supplied in a state of being spaced apart at a predetermined interval and aligned flatly, as shown in FIGS. 3 and 4, and moves left and right; a weft pulling port (200) equipped with a tong (210) driven by a driving means at the end to pull one of the plurality of wefts (32) (34) between openings formed by a warp; and a weft cutting port (300) that is provided at the tip of the weft supply port (100) and cuts the supplied weft when it is pulled by a predetermined length.

[0040] The above-described weft supply port (100) is configured to include, as shown in FIG. 5, a guide member (110) positioned perpendicular to the weft supply direction, a slider (130) that moves along the guide member (110) by a driving means (120) composed of a cylinder, a plurality of weft guide portions (140) formed on the upper surface of the slider (130) so that wefts (32) (34) unwound from a bobbin are guided in a spaced-apart state, a plurality of forward rollers (150) provided on the upper portion of the slider so that each weft (32) (34) advances along the weft guide portions (140), and a tension adjusting member (160) provided on the upper portion of the weft guide portions (140) so as to adjust the tension of the forward rollers (150) that support and advance the wefts (32) (34) by the elasticity of a spring (161).

[0041] In addition, at the end of the weft-progressing direction of the slider (130), a horizontal weft discharge port (170) is formed at each end of the weft guide (140) so that the weft advances and is supported in an unfolded state.

[0042] The above guide section (140) is divided into a plurality of sections by support blocks (180) provided on the upper surface of the slider (130).

[0043] The outer circumference of the above forward roller (150) is formed of rubber material to increase friction with the weft, thereby allowing the weft to advance smoothly.

[0044] And, looking at an embodiment of the tension adjusting member (160), it is configured to include a plurality of hinge axes (162) symmetrically provided in the direction of a plurality of weft guides (140) on the support block (180), an operating member (164) that is rotatably coupled to the hinge axes (162) on one side and rotatably coupled to the central axis (152) of the forward roller (150) on the other side, and an operating pin (166) that penetrates a through hole (165) perforated in the center of the operating member (164), has a spring (161) provided on the upper side, and is fixed to a slider (130) on the lower side to enable the operating member (164) to move up and down, and the through hole (165) is formed to have a diameter larger than the diameter of the operating pin (166) and smaller than the diameter of the spring (161).

[0045]

[0046] As shown in Fig. 6, the above-mentioned weft pulling device (200) reciprocates in the width direction of the fabric and is provided with a clamp (210) at the end thereof. The clamp (210) is configured to open and close by the operation of a driving means, so that the weft is picked up by the clamp (210) and pulled across the fabric, and then the clamp is opened to position the weft, and then moved to an opening formed by a warp to pull another weft.

[0047] Meanwhile, in the above configuration, an example of a driving means for driving the gripper (210) includes an operating bar (220) that moves forward and backward by air pressure, a housing (230) through which the tip of the operating bar (220) passes on one side to guide the movement of the operating bar and in which the hinge axis of the gripper is installed on the other side, and a plurality of connecting bars (240) that are hinge-connected to the end of the operating bar (220) and the rear of the gripper (210), respectively, so that when the operating bar (220) is retracted as shown in (a) of FIG. 6, the connecting bars (240) pull the rear of the gripper so that the tip of the gripper is opened, and when the operating bar (220) is moved forward, the connecting bars (240) open the rear of the gripper so that the tip is closed, as shown in (b) of FIG. 6.

[0048]

[0049] The above-mentioned weft cutting opening (300) is provided in front of the weft supply opening (100) as shown in FIG. 4 and is configured to cut the middle of the pulled weft with a heating wire (310). The heating wire (310) is installed on a support block (320) and can be rotated up and down at a predetermined angle to cut the weft. In an embodiment of the present invention, the heating wire (310) is fixed diagonally to a support block (320) formed in an 'ㄱ' shape, and the weft is cut by moving the support block (320) back and forth using a driving means.

[0050]

[0051] According to the present invention configured as described above, the wefts (32) (34) are guided to each of the plurality of weft guides (140) of the weft supply port (100), and in order to supply one of the wefts (hereinafter referred to as the first weft) (32), the weft guide (140) is moved to the moving position of the weft pulling port (200), and the end of the first weft (32) passing through the weft discharge port (170) is picked up by the tongs (210) of the weft pulling port (200) and moved to the opening between the warp threads, and after moving a predetermined length, the weft cutting port (300) advances to cut the first weft (32) with the hot wire (310) and then moves back to the original position.

[0052] Afterwards, when another weft (hereinafter referred to as second weft) (34) is to be supplied, as shown in FIG. 7, the slider (130) moves along the guide member (110) and the weft discharge port (170) through which the second weft (34) is discharged is moved to a position corresponding to the weft pulling opening (200), and the second weft (34) is pulled by the tongs (210) of the weft pulling opening (200), and after pulling by a predetermined length, the heating wire (310) advances, cuts the second weft (34), and then retreats to the original position.

[0053] By repeating this process, various types of wefts can be used in the weaving process of a single 2D woven fabric, enabling a variety of designs.

[0054] In addition, in the embodiment of the present invention, two types of yarns were used, but more types can also be used.

[0055] Meanwhile, in the embodiment of the present invention described above, while the weft is being advanced, the weft is supplied at a constant speed with an appropriate tension by the forward roller (150) and the tension adjusting device (160), and the weft is supplied without being twisted by the interaction between the weft discharge port (170), the forward roller (150), and the tension adjusting device (160).

Claims

1. A weft supply port (100) that guides multiple wefts (32)(34) in a flat state spaced apart at a predetermined interval and moves left and right; A weft pulling device (200) having a forceps (210) driven by a driving means at the end to pull one of the plurality of wefts (32)(34) through an opening formed by an incline; A weft supply device for a woven loom, characterized in that it comprises a weft cutting port (300) provided at the tip of the weft supply port (100) for cutting the supplied weft when it is pulled to a predetermined length.

2. In the first paragraph, the weft supply port (100) is characterized in that it comprises a guide member (110) positioned perpendicular to the weft supply direction, a slider (130) moving along the guide member (110) by a driving means (120), a plurality of weft guides (140) formed on the upper surface of the slider (130) and formed so that wefts (32) (34) released from a bobbin are guided in a spaced state from each other, and a forward roller (150) provided on the upper portion of the slider and allowing each weft (32) (34) to advance along the weft guides (140).

3. A weft supply device for a woven loom, characterized in that in the second paragraph, the weft supply port (100) further includes a tension adjusting portion (160) provided on the upper portion of the weft guide portion (140) to support and advance the weft (32) (34) by the elasticity of a spring and to maintain the tension of the forward roller (150) at a constant level.

4. A weft supply device for a woven loom, characterized in that in the first paragraph, the weft cutting opening (300) is provided in front of the weft supply opening (100) and is configured to cut the pulled weft with a heating wire (310) provided on a moving support block (320).

5. In the first paragraph, the driving means for driving the tongs (210) is characterized by comprising an operating bar (220) that moves forward and backward by air pressure, a housing (230) through which the tip of the operating bar (220) passes on one side to guide the movement of the operating bar and in which the hinge axis of the tongs is installed on the other side, and a plurality of connecting bars (240) that are hinge-connected to the end of the operating bar (220) and the rear of the tongs (210), respectively.

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