Weft yarn feeding device of flat loom

Abstract

The utility model discloses a weft yarn feeding device of a flat weaving machine, which comprises a rack, a yarn releasing mechanism, a traction mechanism and a yarn storage mechanism, and the yarn releasing mechanism, the traction mechanism and the yarn storage mechanism are all arranged on the rack; the yarn storage mechanism is composed of a yarn storage container and an air blower, the yarn storage container is provided with an air channel, an air inlet is formed in the upper portion of the air channel, an air outlet is formed in the lower portion of the air channel, and an air blowing nozzle is arranged on the air blower and is in butt joint with the air inlet of the air channel. According to the flat silk weaving machine, flat silk weaving cloth with large width, large thickness and high hardness can be met, the situation that weft yarn is tangled or knotted in the weaving process is effectively reduced, and the woven cloth is smooth in cloth cover, neat in yarn and attractive in appearance. Weft yarn storage is achieved through air fluid, the inertia is extremely low, the speed is high, the structure is simple during weft yarn conveying, weft yarns are not prone to twining during weft yarn storage, and using is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of flat looms, in particular to a weft yarn feeding device of a flat loom. Background Art

[0002] The existing flat loom for weaving plastic yarn includes an opening mechanism, a water jet weft insertion mechanism, a weft beating mechanism, a warp let-off mechanism, a take-up mechanism and other auxiliary mechanisms. The flat loom is more suitable for weaving round yarns, but for flat yarns with high denier, such as flat yarns with large width or thickness, there are many problems in the weaving process, especially when feeding the weft yarn, which will cause a lot of entanglement or knotting. It is also difficult to achieve high speed and stability, and the woven fabric surface is uneven. Utility Model Content

[0003] The purpose of the present invention is to solve the above problems in the prior art, thereby providing a weft yarn feeding device for a flat loom that can increase speed and stabilize.

[0004] The present invention provides a weft yarn feeding device for a flat loom, comprising a frame, a yarn-releasing mechanism, a traction mechanism, and a yarn storage mechanism, wherein the yarn-releasing mechanism, the traction mechanism, and the yarn storage mechanism are all mounted on the frame; the yarn storage mechanism comprises a yarn storage container and a blower, the yarn storage container being provided with an air duct, the upper portion of the air duct being provided with an air inlet, the lower portion of the air duct being provided with an air outlet, the blower being provided with a blowing nozzle, and the blowing nozzle being docked at the air inlet of the air duct. The blower is used to provide high-speed air fluid, and the blowing nozzle blows and pushes the weft yarn, so that part of the weft yarn segment is stored in the air duct for future use.

[0005] As a further solution of the present invention, the yarn unwinding mechanism is composed of a first motor and a yarn disc, and the yarn disc is connected to a transmission shaft on the first motor. When in use, the first motor drives the yarn disc wound around the weft yarn to rotate.

[0006] As a further solution of the present invention, the traction mechanism is composed of a second motor, a traction driving wheel, and a driven wheel. The traction driving wheel is connected to the transmission shaft of the second motor, and the traction driven wheel is rotatably abutted against the traction driving wheel. Driven by the second motor, the traction driving wheel cooperates with the traction driven wheel to pull the weft yarn at a high speed and low friction. When the weft yarn in the yarn storage mechanism is quickly withdrawn, relying solely on the wind and fluid to complete the yarn storage reaction speed is insufficient. In this case, this problem is solved with the assistance of the traction mechanism, so that the yarn storage action can be completed in a very short time without damaging the weft yarn.

[0007] When in use, the second motor drives the traction driving wheel to rotate, and the weft yarn is passed between the traction driving wheel and the traction driven wheel. Driven by the second motor, the traction driving wheel and the traction driven wheel cooperate to provide traction force for conveying the weft yarn.

[0008] As a further solution of the present invention, a first sensor is provided on the side wall of the air duct, the first sensor is electrically connected to the controller on the flat loom, and the first motor is electrically connected to the controller. When the first sensor detects the weft yarn, it sends a signal to the controller, and the controller controls the first motor to decelerate.

[0009] As a further solution of the present invention, a second sensor is provided on the side wall of the air duct, the second sensor is electrically connected to the controller on the flat loom, and the first motor is electrically connected to the controller. When the second sensor detects the weft yarn, it sends a signal to the controller, and the controller controls the first motor to decelerate.

[0010] As a further solution of the present invention, the yarn storage mechanism is also provided with a cover body, which covers the air inlet of the air duct, and is provided with an air inlet, a weft yarn inlet hole and a weft yarn outlet hole; the blowing nozzle is connected to the air inlet.

[0011] As a further solution of the present invention, an annular groove is provided on the traction driving wheel, and the traction driven wheel abuts against the annular groove of the traction driving wheel, which makes the weft yarn more stable when being pulled.

[0012] During use, the first motor drives the yarn disc to rotate, and the weft yarn is discharged from the disc and drawn into the air duct by the traction mechanism. The blowing nozzle pushes the weft yarn downward, forming a "U" shape, which effectively maintains the weft shape and prevents it from tangling or knotting in the air duct. The pull mechanism on the flat loom then quickly removes the "U"-shaped weft yarn from the air duct. This cleverly utilizes the light weight and limited width of plastic flat yarn, allowing air to blow the flat yarn to achieve rapid storage and removal of the weft yarn.

[0013] The beneficial effects of the utility model are as follows: it can meet the needs of flat yarn weaving with large width, large thickness and high hardness, effectively reducing the entanglement or knotting of weft yarns during weaving, making the woven cloth smooth, the yarns neat and beautiful in appearance. The weft yarns are stored by air fluid, and the inertia when transporting the weft yarns is extremely low, the speed is fast, the structure is simple, and the weft yarns are not easily entangled during storage, making it stable and reliable in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the present invention. Obviously, the drawings described below are only some embodiments and implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1It is a structural schematic diagram of a preferred embodiment of the utility model.

[0016] Figure 2 This is a schematic diagram of the state of weft yarn stored in the air duct when the utility model is used.

[0017] Figure 3 This is a schematic diagram of the state after the weft yarn stored in the air duct is drawn out when the utility model is used.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0019] 1. Frame; 2. Yarn-releasing mechanism; 3. Traction mechanism; 4. Yarn storage mechanism; 41. Yarn storage container; 42. Hair dryer; 411. Air duct; 412. Air inlet; 413. Air outlet; 421. Blowing nozzle; 21. First motor; 22. Yarn disc; 31. Second motor; 32. Traction driving wheel; 33. Traction driven wheel; 5. First sensor; 6. Second sensor; 43. Cover; 431. Air inlet; 432. Weft yarn inlet hole; 333. Weft yarn outlet hole; 321. Annular groove; 100. Weft yarn; 200. Controller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that, in the description of the present invention, unless otherwise specified, “multiple” means two or more; the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, “front end”, “rear end”, “head”, “tail”, etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Furthermore, the terms "first," "second," "third," etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0023] At the same time, in the description of this utility model, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0024] like Figure 1-Figure 3 As shown, the weft yarn feeding device of the flat loom includes a frame 1, a yarn-releasing mechanism 2, a traction mechanism 3 and a yarn storage mechanism 4, which are all mounted on the frame 1; the yarn storage mechanism 4 is composed of a yarn storage container 41 and a blower 42, the yarn storage container 41 is provided with an air duct 411, an air inlet 412 is provided at the upper part of the air duct 411, and an air outlet 413 is provided at the lower part of the air duct 411, and the blower 42 is provided with a blowing nozzle 421, which is docked at the air inlet 412 of the air duct 411. The blower 42 provides high-speed air fluid, and under the blowing and pushing action of the blowing nozzle 421 on the weft yarn 100, some sections of the weft yarn 100 are stored in the air duct 411 for standby use.

[0025] As a preferred embodiment, the yarn unwinding mechanism 2 is composed of a first motor 21 and a yarn disc 22. The yarn disc 22 is connected to the transmission shaft of the first motor 21. When in use, the first motor 21 drives the yarn disc 22 wound around the weft yarn 100 to rotate.

[0026] As a preferred embodiment, the traction mechanism 3 is composed of a second motor 31 , a traction driving wheel 32 and a traction driven wheel 33 . The traction driving wheel 32 is connected to the transmission shaft on the second motor 31 , and the traction driven wheel 33 is rotatably abutted against the traction driving wheel 32 .

[0027] When in use, the second motor 31 drives the traction driving wheel 32 to rotate, and the weft yarn 100 is passed between the traction driving wheel 32 and the traction driven wheel 33. Driven by the second motor 31, the traction driving wheel 32 and the traction driven wheel 33 cooperate to provide traction for conveying the weft yarn 100.

[0028] As a preferred embodiment, a first sensor 5 is provided on the side wall of the air duct 411, the first sensor 5 is electrically connected to the controller 200 on the flat loom, and the first motor 21 is electrically connected to the controller 200. When the first sensor 5 detects the weft yarn 100, it sends a signal to the controller 200, and the controller 200 controls the first motor 21 to decelerate.

[0029] As a preferred embodiment, a second sensor 6 is provided on the side wall of the air duct 411, the second sensor 6 is electrically connected to the controller 200 on the flat loom, and the first motor 21 is electrically connected to the controller 200. When the second sensor 6 detects the weft yarn 100, it sends a signal to the controller 200, and the controller 200 controls the first motor 21 to decelerate.

[0030] As a preferred embodiment, the yarn storage mechanism 4 further includes a cover 43, which covers the air inlet 412 of the air duct 411. The cover 43 is provided with an air inlet 331, a weft yarn inlet hole 332, and a weft yarn outlet hole 333. The blowing nozzle 421 is connected to the air inlet 331. In some embodiments, the air outlet 413 can be connected to the hair dryer 42 via an air duct, thereby forming an air flow loop between the hair dryer 42 and the air duct 411.

[0031] As a preferred embodiment, an annular groove 221 is provided on the traction driving wheel 32 , and the traction driven wheel 33 abuts against the annular groove 321 of the traction driving wheel 32 , which makes the weft yarn 100 more stable when being pulled.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weft yarn feeding device for a flat loom, characterized in that: It includes a frame, a yarn-releasing mechanism, a traction mechanism and a yarn storage mechanism, and the yarn-releasing mechanism, the traction mechanism and the yarn storage mechanism are all installed on the frame; the yarn storage mechanism is composed of a yarn storage container and a hair dryer, the yarn storage container is provided with an air duct, the upper part of the air duct is provided with an air inlet, the lower part of the air duct is provided with an air outlet, the hair dryer is provided with a blowing nozzle, and the blowing nozzle is connected to the air inlet of the air duct.

2. The weft yarn feeding device of the flat loom according to claim 1, characterized in that: The yarn unwinding mechanism consists of a first motor and a yarn disc, and the yarn disc is connected to a transmission shaft on the first motor.

3. The weft yarn feeding device of the flat loom according to claim 1, characterized in that: The traction mechanism is composed of a second motor, a traction driving wheel and a driven wheel. The traction driving wheel is connected to the transmission shaft on the second motor, and the traction driven wheel is rotatably abutted against the traction driving wheel.

4. The weft yarn feeding device of a flat loom according to claim 1, characterized in that: A first sensor is provided on the side wall of the air duct.

5. The weft yarn feeding device of a flat loom according to claim 1, characterized in that: A second sensor is provided on the side wall of the air duct.

6. The weft yarn feeding device of a flat loom according to claim 1, characterized in that: The yarn storage mechanism is further provided with a cover body, which covers the air inlet of the air duct, and is provided with an air inlet, a weft yarn inlet hole and a weft yarn outlet hole; the blowing nozzle is docked at the air inlet.

7. The weft yarn feeding device of a flat loom according to claim 3, characterized in that: An annular groove is provided on the traction driving wheel, and the traction driven wheel abuts against the annular groove of the traction driving wheel.

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