Air jet loom

Abstract

The present invention relates to an air jet loom, which comprises a weft yarn feeding device, a warp yarn feeding device, an interlacing device, and a weft yarn waste edge cutting device. On the one hand, the present invention ensures that the weft yarn is interlaced under a set tension, thereby improving the quality of the woven cloth, and also reduces the probability of yarn breakage. At the same time, the yarn clamp is set to prevent the yarn head from retracting from the inside of the spinneret when the yarn breaks accidentally, thereby facilitating the connection processing after the yarn breaks; on the other hand, under the premise of ensuring that the woven cloth is flat and the warp yarn does not slide sideways, the airflow formed by the roller pressing unit blows the waste edge of the weft yarn straight, thereby ensuring the flatness of the outer end of the weft yarn after cutting, thereby improving the quality of the woven cloth, and the structure is simple, the implementation is convenient, and the cost is low.

Description

Technical Field

[0001] The present invention particularly relates to an air jet loom. Background Art

[0002] At present, the jet loom mainly includes a weft feeding device, a warp feeding device, an interlacing device, and a weft waste cutting device, wherein the weft waste cutting device mainly includes a yarn cutting unit for interlacing the outer ends of the waste and a waste collecting unit after being cut off.

[0003] However, in actual operation, it has the following defects:

[0004] 1) During the interweaving or shearing process, if the weft yarn is over-tensioned or over-relaxed, it will not only affect the quality of the woven fabric, but also increase the probability of weft yarn breakage;

[0005] 2) Once the yarn breaks, the weft yarn may retract into the spinneret, so the connection process after the yarn breakage becomes very cumbersome;

[0006] 3) The weft yarns at the ends of the waste edges are easily tangled together. If they are not combed, it will be difficult to ensure the flatness of the outer ends of the weft yarns after cutting, which will affect the quality of the fabric.

[0007] 4) The warp yarn is prone to slippage, resulting in a large number of defects on the surface of the produced cloth, which directly affects the quality of the cloth. At the same time, it is also impossible to ensure that the cloth is cut in a relatively stable state. The length of the tail end of the weft yarn after cutting is difficult to meet the processing needs. Summary of the invention

[0008] In order to overcome the defects of the prior art, an object of the present invention is to provide an improved air jet loom.

[0009] To achieve the above object, the present invention provides

[0010] An air jet loom, comprising:

[0011] A weft feeding device, comprising a thread guide arranged at a main weft spinning nozzle, a thread guide for introducing the weft into a loom, a thread guide seat arranged between the thread guide and the thread guide, a first thread guide tube and a second thread guide tube arranged at a thread inlet end and a thread outlet end of the thread guide seat, and a yarn slack adjustment unit for driving the first thread guide tube and the second thread guide tube to move up and down relative to the thread guide seat, wherein the slack adjustment unit comprises a positioning rod for positioning the thread guide seat, a sliding sleeve slidably arranged on the positioning rod, a connecting rod for fixing the sliding sleeve to the first thread guide tube and the second thread guide tube from opposite sides, and a driving member for driving the sliding sleeve to move up and down along the positioning rod;

[0012] The weft yarn feeding device also includes a yarn clamp arranged at the yarn outlet end of the yarn guide, wherein the weft yarn discharged from the yarn guide is wound around the yarn clamp and passed into the loom;

[0013] Warp feeding device;

[0014] interweaving device;

[0015] A weft waste edge cutting device comprises a cutting unit and a unit for collecting the cut waste edges, wherein the cutting unit comprises a platform for carrying the waste edges and a cutting tool, and the weft waste edge cutting device also comprises an edge pressure support pressed on the side of the fabric away from the cutting unit, and a roller pressing unit arranged on the side of the fabric close to the cutting unit, wherein the roller pressing unit comprises a roller body extending along the warp direction, a plurality of blades distributed circumferentially around the roller body, and bristles arranged on each blade, and a driver for driving the roller body to rotate, when the roller body rotates, the blades form an airflow to blow the waste edge weft yarn on the side straight, the cutting tool cuts the waste edge in the straightened state, and the bristles brush the fabric to keep the fabric moving toward the side where the cutting unit is located to prevent the fabric from slipping sideways.

[0016] Preferably, the driving member includes a power device for driving the sliding sleeve to slide on the positioning rod, and a resetter arranged on the positioning rod to drive the sliding sleeve to reset.

[0017] Furthermore, a sleeve cap is arranged at the lower end of the sliding sleeve, and the pneumatic actuator acts on the sleeve cap to drive the sliding sleeve to slide relative to the positioning rod.

[0018] According to a specific implementation and preferred aspect of the present invention, the power device includes an elliptical paddle wheel arranged above the side of the cap, a motor and a transmission member driving the elliptical paddle wheel to rotate around the wheel center, wherein the elliptical paddle wheel can abut against the cap from the end of the long axis.

[0019] Specifically, there are two groups of power devices, which are correspondingly arranged on opposite sides of the cap.

[0020] According to another specific implementation and preferred aspect of the present invention, the resetter includes a positioning sleeve fixed on the positioning rod and a tension spring for connecting the positioning sleeve with the sliding sleeve, wherein the tension spring sleeve is arranged on the outer periphery of the positioning rod.

[0021] Preferably, the connecting rod includes a first support rod extending obliquely upward from the top of the sliding sleeve, a second support rod extending vertically upward from the upper end of the first support rod, and the first yarn guide tube and the second yarn guide tube are respectively fixed to the upper ends of the second support rod on opposite sides.

[0022] In addition, the weft yarn feeding device also includes an air blowing wire feeding unit arranged on the yarn guide. Under the blowing of gas, it is more conducive to the feeding of the weft yarn.

[0023] Preferably, the air blowing wire feeding unit comprises an air channel connected to the yarn guide and a gas supply assembly connected to the air channel.

[0024] Specifically, the yarn guide is tubular with a yarn guide hole inside, the extension direction of the gas channel is intersected with the extension direction of the yarn guide hole, and the angle formed between the center line of the gas channel and the center line of the yarn guide hole is an acute angle, and the gas entering the gas channel flows into the yarn guide hole and flows out from the yarn outlet end of the yarn guide.

[0025] Preferably, there are four blades, each blade extends along the length direction of the roller body, and the four blades are evenly distributed around the circumference of the roller body.

[0026] Specifically, there are a plurality of bristles, which are arranged side by side on the outer side of each blade away from the roller body.

[0027] Furthermore, the multiple bristles on each blade are divided into multiple rows, and the bristles in each row are evenly spaced, and the bristles in two adjacent rows are evenly spaced.

[0028] According to a specific implementation and preferred aspect of the present invention, the scrap collection unit includes a collection box and a pipe for discharging the cut scraps to the collection box, and the cutting tool is arranged in the pipe near the end of the scrap.

[0029] According to another specific implementation and preferred aspect of the present invention, the cutting unit further comprises a cover for closing the cutting tool in the pipeline and having a gap for the waste edge to enter the pipeline. The setting of the cover facilitates the installation and adjustment of the cutting tool on the one hand, so as to meet the requirements of cutting waste edges of different lengths; on the other hand, it facilitates the collection of the waste edges after cutting, and also ensures that the straightening work of the uncut waste edges will not be interfered with.

[0030] Preferably, the cutting knife is arranged on the cover so as to be movable and adjustable along the length direction of the weft yarn.

[0031] Preferably, the pipeline includes a first branch pipe extending horizontally, and a second branch pipe extending vertically downward from the right end of the first branch pipe, and the cutting tool is located at the left end of the first branch pipe.

[0032] Preferably, the collection box is a collection filter bag, and the waste edge collection unit further comprises a negative pressure fan arranged in the pipeline.

[0033] In addition, the side pressure support is aligned with the roller pressing unit and is correspondingly arranged on opposite sides of the fabric, which not only prevents the side slipping phenomenon generated during the weaving process of the fabric, but also allows the fabric to be cut in a relatively flat state.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] On the one hand, the present invention ensures that the weft yarns are interwoven under the set tension, thereby improving the quality of woven cloth and reducing the probability of yarn breakage. At the same time, the yarn clamp is arranged to prevent the yarn head from retracting from the inside of the spinneret when the yarn breaks accidentally, thereby facilitating the connection processing after the yarn breaks. On the other hand, under the premise of ensuring that the woven cloth is flat and the warp yarns do not slide sideways, the airflow formed by the rolling unit blows the weft yarns of the waste edges straight, thereby ensuring the flatness of the outer end of the weft yarn after cutting, thereby improving the quality of the woven cloth. The present invention has a simple structure, is easy to implement, and has a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the air jet loom of the present invention;

[0037] Figure 2 for Figure 1 A schematic diagram of the structure of the weft yarn feeding device;

[0038] Figure 3 for Figure 2 An enlarged schematic diagram of the air blowing wire feeding unit;

[0039] Figure 4 for Figure 1 A schematic diagram of the structure of a weft yarn waste edge cutting device;

[0040] Figure 5 for Figure 1 The enlarged schematic diagram at A in the middle;

[0041] In the accompanying drawings: X, weft feeding device; 1, thread pass; 2, yarn guide; 3, yarn guide seat; 4, first yarn guide tube; 5, second yarn guide tube; 6, yarn slack adjustment unit; 60, positioning rod; 61, sliding sleeve; 62, connecting rod; 621, first support rod; 622, second support rod; 63, driving member; 630, power device; a, elliptical dial; 631, reset device; b, positioning sleeve; c, tension spring; 7, yarn clamp; 8, air blowing wire feeding unit; 80, gas channel; w, weft yarn.

[0042] Y, weft waste edge cutting device; y1, cutting unit; 10, platform; 11, cutting tool; 12, cover; y2, waste edge collecting unit; y20, collecting box; y21, pipeline; 211, first branch pipe; 212, second branch pipe; y22, negative pressure fan; y3, edge pressure support; y4, roller pressing unit; 40, roller body; 41, blades; 42, bristles; 43, drive; B, weaving. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0049] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0050] like Figure 1 As shown, the air jet loom provided in this embodiment includes a weft yarn feeding device X, a warp yarn feeding device (not shown in the figure, but it is not conceivable), an interweaving device (not shown in the figure, but it is not conceivable), and a weft yarn waste edge cutting device Y.

[0051] Combination Figure 2 As shown, the weft feeding device X includes a thread passer 1 arranged at the main weft spinning nozzle, a thread guide 2 for introducing the weft yarn w into the loom, a thread guide seat 3 arranged between the thread passer 1 and the thread guide 2, a first thread guide tube 4 and a second thread guide tube 5 arranged at the yarn inlet end and the yarn outlet end of the thread guide seat 3, a yarn slack adjustment unit 6 for driving the first thread guide tube 4 and the second thread guide tube 5 to move up and down relative to the thread guide seat 3, and a yarn clamp 7 arranged at the yarn outlet end of the thread guide 2, wherein the weft yarn w discharged from the thread guide 2 is wound around the yarn clamp 7 and passed into the loom.

[0052] The slack adjustment unit 6 includes a positioning rod 60 for positioning the yarn guide seat 3, a sliding sleeve 61 slidably arranged on the positioning rod 60, a connecting rod 62 for fixedly connecting the sliding sleeve 61 to the first yarn guide tube 4 and the second yarn guide tube 5 from opposite sides, and a driving member 63 for driving the sliding sleeve 61 to move up and down along the positioning rod 60.

[0053] The driving member 63 includes a power device 630 for driving the sliding sleeve 61 to slide on the positioning rod 60 and a reset device 631 disposed on the positioning rod 60 to drive the sliding sleeve 61 to reset.

[0054] A sleeve cap 610 is disposed at the lower end of the sliding sleeve 61 , and the pneumatic actuator 630 acts on the sleeve cap 610 to drive the sliding sleeve 61 to slide relative to the positioning rod 60 .

[0055] The power device 630 includes an elliptical dial a disposed on the upper side of the cap 610, a motor and a transmission member for driving the elliptical dial a to rotate around the wheel center, wherein the elliptical dial a can abut against the cap 610 from the end of the long axis.

[0056] In this example, there are two groups of power devices 630 , which are correspondingly disposed on opposite sides of the sleeve cap 610 .

[0057] The resetter 631 includes a positioning sleeve b fixed on the positioning rod 60 and a tension spring c for connecting the positioning sleeve b with the sliding sleeve 61 , wherein the tension spring c is sleeved on the outer periphery of the positioning rod 60 .

[0058] The connecting rod 62 includes a first support rod 621 extending upward from the top of the sliding sleeve 61, and a second support rod 622 extending vertically upward from the upper end of the first support rod 621. The first yarn guide tube 4 and the second yarn guide tube 5 are respectively fixed to the upper ends of the second support rod 622 on opposite sides.

[0059] In addition, the weft yarn feeding device X also includes an air blowing wire feeding unit 8 arranged on the yarn guide 2. Under the blowing of gas, it is more conducive to the feeding of the weft yarn.

[0060] The air blowing wire feeding unit 8 includes an air channel 80 connected to the yarn guide 2 and a gas supply component connected to the air channel 80 .

[0061] Specifically, the yarn guide 2 is tubular with a yarn guide hole 20 inside. The extension direction of the gas channel 80 is intersected with the extension direction of the yarn guide hole 20, and the angle formed between the center line of the gas channel 80 and the center line of the yarn guide hole 20 is an acute angle. The gas entering the gas channel 80 flows into the yarn guide hole 20 and flows out from the yarn outlet end of the yarn guide 2.

[0062] Combination Figure 3 As shown, in this example, the angle formed between the center line of the gas channel 80 and the center line of the yarn guide hole 20 is 8°.

[0063] At the same time, there are two gas passages 80, which are correspondingly arranged on the upper and lower sides of the yarn guide 2. In this way, the weft yarn is sent out from the yarn outlet end of the yarn guide hole 20 under the effect of two air flows.

[0064] Combination Figure 4 As shown, the weft yarn waste edge cutting device Y includes a cutting unit y1 and a waste edge collecting unit y2 after being cut, wherein the waste edge collecting unit y2 includes a collecting box y20 and a pipe y21 for discharging the cut waste edges to the collecting box y20, and the cutting unit y1 includes a platform 10 for carrying the waste edges and a cutting tool 11 arranged in the pipe y21 near the end of the waste edges.

[0065] Specifically, the collection box y20 is a collection filter bag, and the waste edge collection unit y2 also includes a negative pressure fan y22 arranged in the pipeline y21.

[0066] In this example, the weft waste edge cutting device further comprises an edge pressing support y3 pressed on the side of the fabric B away from the cutting unit y1, and a roller pressing unit y4 arranged on the side of the fabric B close to the cutting unit y1.

[0067] The side pressure support y3 is aligned with the roller pressing unit y4 and is correspondingly arranged on opposite sides of the fabric B. This not only prevents the side slipping phenomenon generated during the weaving process of the fabric, but also allows the fabric to be cut in a relatively flat state.

[0068] Combination Figure 2 As shown, the rolling unit y4 includes a roller body 40 extending along the warp direction, a plurality of blades 41 distributed circumferentially around the roller body 40, bristles 42 arranged on each blade 41, and a driver 43 for driving the roller body 40 to rotate. When the roller body 40 rotates, the blades 41 form an airflow to straighten the waste edge weft yarn on the side, and the cutting tool 11 cuts off the waste edge in the straightened state, and the bristles 42 brush the fabric B to keep the movement trend toward the side where the cutting unit y1 is located to prevent the fabric B from slipping sideways.

[0069] There are four blades 41 , each blade 41 extends along the length direction of the roller body, and the four blades 41 are evenly distributed around the circumference of the roller body 40 .

[0070] Specifically, there are a plurality of bristles 42 , which are arranged side by side on the outer side of each blade 41 away from the roller body 40 .

[0071] In this example, the multiple bristles 42 on each blade 41 are divided into three rows, and the bristles 42 in each row are evenly spaced, and the bristles 42 in two adjacent rows are evenly spaced.

[0072] The cutting unit y1 further comprises a cover 12 for closing the cutting tool 11 in the pipe y21 and having an escape gap for the waste edge to enter the pipe y21. In this example, the cutting tool 11 is arranged on the cover 12 so as to be movable left and right along the length direction of the weft yarn (horizontal direction).

[0073] In this example, the setting of the cover 12 facilitates the installation and adjustment of the cutting tool 11 to meet the needs of cutting waste edges of different lengths; on the other hand, it facilitates the collection of the waste edges after cutting, while also ensuring that the straightening work of the uncut waste edges will not be interfered with.

[0074] The pipeline y21 includes a first branch pipe 211 extending horizontally and a second branch pipe 212 extending vertically downward from the right end of the first branch pipe 211 . The cutting tool 11 is located at the left end of the first branch pipe 211 .

[0075] Furthermore, to facilitate the removal work, a notch matching the platform 10 is opened at the left end of the first branch pipe 211, and the left end of the first branch pipe 211 is relatively closed.

[0076] As for the selection of the cutting tool 11, there are many options, including common shearing, laser cutting, disc rolling cutting, etc. At the same time, it is directly purchased from outside, and the specific working principle is common knowledge in this field and will not be described in detail here.

[0077] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An air jet loom, comprising: A weft feeding device, comprising a thread guide disposed at a main weft spinning nozzle, a thread guide for introducing the weft into a loom, a thread guide seat disposed between the thread guide and the thread guide, a first thread guide tube and a second thread guide tube disposed at a thread inlet end and a thread outlet end of the thread guide seat, and a yarn slack adjustment unit for driving the first thread guide tube and the second thread guide tube to move up and down relative to the thread guide seat; Warp feeding device; interweaving device; The weft yarn waste edge cutting device comprises a cutting unit and a waste edge collecting unit after the cutting. The cutting unit comprises a platform for carrying the waste edge and a cutting tool. Features: The slack adjustment unit includes a positioning rod for positioning the yarn guide seat, a sliding sleeve slidably arranged on the positioning rod, a connecting rod for fixedly connecting the sliding sleeve to the first yarn guide tube and the second yarn guide tube from opposite sides, and a driving member driving the sliding sleeve to move up and down along the positioning rod; the driving member includes a power device for driving the sliding sleeve to slide on the positioning rod, and a resetter arranged on the positioning rod to drive the sliding sleeve to reset; a sleeve cap is arranged at the lower end of the sliding sleeve, and the power device acts on the sleeve cap to drive the sliding sleeve to slide relative to the positioning rod, and the power device includes an elliptical dial wheel arranged above the sleeve cap side, a motor and a transmission member driving the elliptical dial wheel to rotate around the wheel center, wherein the elliptical dial wheel can contact the sleeve cap from the end of the long axis; the resetter includes a positioning sleeve fixed on the positioning rod, and a tension spring for connecting the positioning sleeve to the sliding sleeve, wherein the tension spring is sleeved on the outer periphery of the positioning rod; The weft yarn feeding mechanism further comprises a yarn clamp arranged at the yarn outlet end of the yarn guide, wherein the weft yarn discharged from the yarn guide is wound around the yarn clamp and passed into the loom; The weft waste edge cutting device also includes an edge pressure support pressed on the side of the fabric away from the cutting unit, and a roller pressing unit arranged on the side of the fabric close to the cutting unit, wherein the roller pressing unit includes a roller body extending along the warp direction, a plurality of blades distributed circumferentially around the roller body, and bristles arranged on each of the blades, and a driver driving the roller body to rotate, wherein the blades extend along the length direction of the roller body, and when the roller body rotates, the blades form an airflow to straighten the waste edge weft yarn on the side, and the cutting tool cuts off the waste edge in the straightened state, and the bristles brush the fabric to keep the fabric moving toward the side where the cutting unit is located to prevent the fabric from moving. Prevent the woven fabric from sliding sideways; the edge pressure support is aligned with the rolling unit and is correspondingly arranged on the opposite sides of the woven fabric; the waste edge collection unit includes a collection box and a pipe for discharging the cut waste edges to the collection box, and the cutting tool is arranged in the pipe near the end of the waste edge; the cutting unit also includes a cover for closing the cutting tool in the pipe and having a gap for the waste edge to enter the pipe, wherein the cutting tool can be movably and adjustably arranged on the cover along the length direction of the weft yarn, the cover is arranged opposite to the roller body, and in the projection perpendicular to the platform, the length of the area where the bristles are distributed is greater than the length of the cutting tool.

2. The air jet loom according to claim 1, characterized in that: The weft yarn feeding mechanism also includes an air blowing wire feeding unit arranged on the yarn guide; the air blowing wire feeding unit includes a gas channel connected to the yarn guide and a gas supply component connected to the gas channel.

3. The air jet loom according to claim 2, characterized in that: The yarn guide is in the shape of a tube with a yarn guide hole inside. The extension direction of the gas channel is arranged to intersect with the extension direction of the yarn guide hole, and the angle formed between the center line of the gas channel and the center line of the yarn guide hole is an acute angle. The gas entering the gas channel flows into the yarn guide hole and flows out from the yarn outlet end of the yarn guide.

4. The air jet loom according to claim 1, characterized in that: There are four blades, and the four blades are evenly distributed around the circumference of the roller body.

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