Circular knitting device for chinlon polyester industrial fabric

Abstract

The utility model relates to the technical field of textile, in particular to a chinlon polyester industrial fabric circular knitting device which comprises supporting legs and further comprises a bottom plate, the bottom plate is fixedly connected to the tops of the supporting legs, the top of the bottom plate is fixedly connected with a machine body, and a plurality of knitting needles are arranged in the machine body. The sensing unit is arranged at the top of the bottom plate, the sensing unit comprises a sensing block, a sensor and a bunching ring, the bunching ring drives the sensing block to move, and the sensor is matched with the sensing block to drive the hydraulic rod to drive the second yarn guide roller to ascend and descend, so that the tightness of the yarn is adjusted; the sensing unit comprises a plurality of yarn guide rods fixedly connected to the top of the bottom plate, the yarn guide rods are arranged around the central axis of the machine body in a surrounding mode, and a sensing piece is arranged at the top of the bottom plate. And the problems of repeated empty hook of the knitting needle and needle release of a coil caused by yarn looseness are avoided.

Description

Technical Field

[0001] This utility model relates to the field of textile technology, specifically to a circular knitting device for nylon and polyester industrial fabrics. Background Technology

[0002] The circular knitting device for nylon and polyester industrial fabrics is a specialized piece of equipment for processing synthetic fibers. It uses a multi-path yarn feeding system to simultaneously feed high-strength nylon, abrasion-resistant polyester, and other yarns into the cylinder. The circular knitting device is then used to achieve continuous weft loop formation, weaving mesh tubes, filter substrates, or conveyor belt fabrics with tear-resistant and corrosion-resistant properties.

[0003] In circular knitting of fabrics, there is a dynamic coordination problem between the yarn feeding system and the knitting mechanism. Because the path of the yarn from the yarn bobbin to the knitting needle is relatively long, passing through multiple components such as the yarn guide and tensioner, when the equipment operating speed fluctuates, the yarn guide hole is worn, or the yarn twist is uneven, the yarn is prone to local loosening in the knitting section. At this time, the loose yarn loses the tension support and cannot closely follow the movement trajectory of the knitting needle. The needle hook is difficult to accurately bite the yarn body in the reciprocating swing, and instead repeatedly passes through the gaps between loose fibers. Continuous empty hooks will cause disorder of the needle bed loop density. In severe cases, the yarn will directly fall out of the needle groove, forcing the machine to stop for maintenance, affecting the production capacity and fabric quality. To address this, we propose a circular knitting device for nylon and polyester industrial fabrics. Utility Model Content

[0004] One of the technical problems this application aims to solve is that unstable yarn tension during circular knitting makes it easy to loosen, repeated empty hooking of the knitting needle makes it difficult to form loops, and frequent loop slippage occurs.

[0005] To address the aforementioned technical problems, this application provides a circular knitting device for nylon and polyester industrial fabrics, including support legs and further comprising:

[0006] A base plate is fixedly connected to the top of multiple support legs, and an organism is fixedly connected to the top of the base plate. Multiple knitting needles are installed inside the organism.

[0007] The sensing unit is located on the top of the base plate. The sensing unit includes a sensing block, a sensor, and a yarn bundle ring. The yarn bundle ring drives the sensing block to move. The sensor, in conjunction with the sensing block, drives a hydraulic rod to raise and lower the second guide roller, thereby adjusting the tension of the yarn.

[0008] In some embodiments, the sensing unit includes a plurality of guide rods fixedly connected to the top of the base plate, the plurality of guide rods being arranged around the central axis of the machine body, and a sensing element being provided on the top of the base plate for sensing the tension of the yarn.

[0009] In some embodiments, the sensing element includes two support rods fixedly connected to the top of the base plate. A first frame is fixedly connected to the top of the two support rods. A second frame is slidably connected to one side of the first frame. A first rod is fixedly connected to the inside of the first frame. A second rod is fixedly connected to the inside of the second frame. The first rod and the second rod are slidably engaged. A limit plate is fixedly sleeved on the outside of the second rod. Springs are sleeved on the first rod and the second rod. A sensing block is fixedly connected to one side of the second rod. A sensor is fixedly connected to the inside of the second frame. A wire harness is fixedly connected to the bottom of the second rod.

[0010] In some embodiments, the sensors are configured in three groups, and the three groups of sensors are equidistantly positioned between the multiple guide rods. The three groups of sensors are arranged around the central axis of the machine body, and the positions of the three wire loops are flush with the tops of the multiple guide rods.

[0011] In some embodiments, a bracket is fixedly connected to one side of the base plate, and an adjustment unit is provided at the bottom of the bracket for adjusting the tension of the yarn.

[0012] In some embodiments, the adjustment unit includes a support column fixedly connected to the top of the bracket, a guide wheel rotatably connected to the top of the support column, two side plates fixedly connected to one side of the support column, a first guide roller rotatably connected between the two side plates, a sliding groove provided on the inner side of each of the two side plates, a slider slidably connected in each of the two sliding grooves, a second guide roller rotatably connected between the two sliders, and a hydraulic rod fixedly connected to the top of each of the two side plates, the drive end of each of the two hydraulic rods extending into the sliding groove and fixedly connected to the slider.

[0013] In some embodiments, the first guide roller is positioned higher than the second guide roller, and the first guide roller is positioned outside the second guide roller.

[0014] This utility model has at least the following beneficial effects:

[0015] By setting up a sensing unit and an adjustment unit, the yarn is positioned by three binding rings and multiple guide rods and then inserted into the knitting needle for circular knitting. If the yarn becomes slack, the binding ring inside the sensing element and the second rod return to their original positions. The sensing block triggers the sensor linkage adjustment unit, which drives two hydraulic rods to press down the slider, causing the second guide roller to move down and tighten the yarn. This prevents the knitting needle from repeatedly hooking empty and the loop from coming off the needle due to the yarn becoming slack. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the sensing element structure of this utility model;

[0018] Figure 3 This utility model Figure 2 A schematic diagram of the bottom structure;

[0019] Figure 4 This is a schematic diagram of the adjustment unit structure of this utility model;

[0020] Figure 5 This utility model Figure 4 A schematic diagram of the top structure.

[0021] In the diagram: 1. Support foot; 2. Base plate; 3. Machine body; 4. Knitting needle; 5. Sensing unit; 51. Guide rod; 52. Sensing element; 521. Support rod; 522. First frame; 523. Second frame; 524. First rod; 525. Second rod; 526. Limiting plate; 527. Spring; 528. Sensing block; 529. Sensor; 5210. Wire loop; 6. Bracket; 7. Adjustment unit; 71. Support column; 72. Guide roller; 73. Side plate; 74. First guide roller; 75. Slide groove; 76. Slider; 77. Second guide roller; 78. Hydraulic rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] Please see Figures 1-5 This utility model provides a technical solution:

[0024] A circular knitting device for nylon and polyester industrial fabrics includes support legs 1, a base plate 2, and a sensing unit 5. The base plate 2 is fixedly connected to the top of multiple support legs 1, and a machine body 3 is fixedly connected to the top of the base plate 2. Multiple knitting needles 4 are arranged inside the machine body 3. The sensing unit 5 is located on the top of the base plate 2. The sensing unit 5 includes a sensing block 528, a sensor 529, and a yarn tie ring 5210. The yarn tie ring 5210 drives the sensing block 528 to move, and the sensor 529 cooperates with the sensing block 528 to drive a hydraulic rod 78 to drive a second guide roller 77 to rise and fall, thereby adjusting the tension of the yarn.

[0025] The sensing unit 5 includes multiple guide rods 51 fixedly connected to the top of the base plate 2. The multiple guide rods 51 are arranged around the central axis of the machine body 3. A sensing element 52 is provided on the top of the base plate 2 for sensing the tension of the yarn. The sensing element 52 includes two support rods 521 fixedly connected to the top of the base plate 2. A first frame 522 is fixedly connected to the top of the two support rods 521. A second frame 523 is slidably connected to one side of the first frame 522. A first rod 524 is fixedly connected to the inside of the first frame 522. A second rod 525 is fixedly connected to the inside of the second frame 523. The first rod 524 and the second rod 525 are slidably engaged. The first rod 524 and the second rod 525 are provided with an engagement structure so that they will not directly detach after being stretched to the limit. The inside is filled with a damping medium to avoid repeated vibration.

[0026] The second rod body 525 is externally fixedly sleeved with a limiting plate 526. The first rod body 524 and the second rod body 525 are sleeved with springs 527. A sensing block 528 is fixedly connected to one side of the second rod body 525. A sensor 529 is fixedly connected inside the second frame 523. A wire harness ring 5210 is fixedly connected to the bottom of the second rod body 525. The sensing elements 52 are set in three groups, and the three groups of sensing elements 52 are equidistantly arranged between multiple guide rods 51. The three groups of sensing elements 52 are all arranged around the central axis of the machine body 3. The positions of the three wire harness rings 5210 are flush with the top of the multiple guide rods 51. The yarn needs to be passed through the multiple guide rods 51 and the three wire harness rings 5210 in sequence. In this way, the three wire harness rings 5210 are subjected to the same force. The three sensors 529 can simultaneously sense the yarn slack. Only after all three sensors 529 sense the yarn slack will the two hydraulic rods 78 be driven.

[0027] In use, the yarn is passed through three yarn loops 5210 and multiple guide rods 51 in sequence, and then pulled down to insert the yarn into multiple knitting needles 4. The machine body 3 is started to perform circular knitting. When the yarn is taut, the second rod 525 is driven to move towards the position of the machine body 3, and the spring 527 is stretched. Once the yarn becomes slack, it will drive the yarn loops 5210 and the second rod 525 in the sensing element 52 to return to their original positions. The sensing block 528 on the second rod 525 moves synchronously. The sensor 529 senses the movement of the sensing block 528 and will drive the adjustment unit 7 to adjust the tension. Example 2

[0028] Please see Figures 4-5 This utility model provides a technical solution:

[0029] Unlike Embodiment 1, a bracket 6 is fixedly connected to one side of the base plate 2, and an adjustment unit 7 is provided at the bottom of the bracket 6 for adjusting the tension of the yarn.

[0030] The adjustment unit 7 includes a support column 71 fixedly connected to the top of the bracket 6. A guide wheel 72 is rotatably connected to the top of the support column 71. Two side plates 73 are fixedly connected to one side of the support column 71. A first guide roller 74 is rotatably connected between the two side plates 73. A groove 75 is opened on the inner side of each of the two side plates 73. A slider 76 is slidably connected in each of the two grooves 75. A second guide roller 77 is rotatably connected between the two sliders 76. A hydraulic rod 78 is fixedly connected to the top of each of the two side plates 73. The driving ends of the two hydraulic rods 78 extend into the grooves 75 and are fixedly connected to the sliders 76. The first guide roller 74 is positioned higher than the second guide roller 77 and is located outside the second guide roller 77. It should be noted that the yarn needs to be guided by the guide wheel 72, pass through the bottom of the second guide roller 77, then pass through the top of the first guide roller 74, and then pass through the guide rod 51 and the yarn bundle ring 5210.

[0031] When the sensing unit 5 detects that the yarn is slack, it will immediately drive the two hydraulic rods 78. The two hydraulic rods 78 will synchronously drive the two sliders 76 to move downward, which will drive the second guide roller 77 to move downward, thus stretching and tightening the yarn.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A nylon-polyester industrial fabric circular knitting device comprising a supporting leg (1), characterized in that: It also includes: The base plate (2) is fixedly connected to the top of multiple support feet (1), and the top of the base plate (2) is fixedly connected to the body (3). Multiple knitting needles (4) are provided inside the body (3). The sensing unit (5) is located on the top of the base plate (2). The sensing unit (5) includes a sensing block (528), a sensor (529), and a wire loop (5210). The wire loop (5210) drives the sensing block (528) to move. The sensor (529) works with the sensing block (528) to drive the hydraulic rod (78) to lift the second guide roller (77) up and down, thereby adjusting the tension of the yarn.

2. The nylon-polyester industrial fabric circular knitting device according to claim 1, characterized in that: The sensing unit (5) includes multiple guide rods (51) fixedly connected to the top of the base plate (2). The multiple guide rods (51) are arranged around the central axis of the machine body (3). The top of the base plate (2) is provided with a sensing element (52) for sensing the tightness of the yarn.

3. The nylon-polyester industrial fabric circular knitting device according to claim 2, characterized in that: The sensing element (52) includes a support rod (521) fixedly connected to the top of the base plate (2). There are two support rods (521). The top of the two support rods (521) is fixedly connected to a first frame (522). A second frame (523) is slidably connected to one side of the first frame (522). A first rod (524) is fixedly connected to the inside of the first frame (522). A second rod (525) is fixedly connected to the inside of the second frame (523). The first rod (524) and the second rod (525) are slidably engaged. A limit plate (526) is fixedly sleeved on the outside of the second rod (525). A spring (527) is provided on the outer sleeve of the first rod (524) and the second rod (525). A sensing block (528) is fixedly connected to one side of the second rod (525). A sensor (529) is fixedly connected inside the second frame (523). A wire harness ring (5210) is fixedly connected to the bottom of the second rod (525).

4. The nylon-polyester industrial fabric circular knitting device according to claim 3, characterized in that: The sensing element (52) is set in three groups, and the three groups of sensing elements (52) are equidistantly arranged between multiple guide rods (51). The three groups of sensing elements (52) are arranged around the central axis of the body (3). The positions of the three wire loops (5210) are flush with the top of the multiple guide rods (51).

5. The nylon-polyester industrial fabric circular knitting device of claim 1, wherein: A bracket (6) is fixedly connected to one side of the base plate (2), and an adjustment unit (7) is provided at the bottom of the bracket (6) for adjusting the tightness of the yarn.

6. The nylon-polyester industrial fabric circular knitting device according to claim 5, characterized in that: The adjustment unit (7) includes a support column (71) fixedly connected to the top of the bracket (6). A guide wheel (72) is rotatably connected to the top of the support column (71). Two side plates (73) are fixedly connected to one side of the support column (71). A first guide roller (74) is rotatably connected between the two side plates (73). A groove (75) is provided on the inner side of each of the two side plates (73). A slider (76) is slidably connected in each of the two grooves (75). A second guide roller (77) is rotatably connected between the two sliders (76). A hydraulic rod (78) is fixedly connected to the top of each of the two side plates (73). The driving ends of the two hydraulic rods (78) extend into the grooves (75) and are fixedly connected to the sliders (76).

7. The nylon-polyester industrial fabric circular knitting device according to claim 6, characterized in that: The first guide roller (74) is positioned higher than the second guide roller (77), and the first guide roller (74) is positioned outside the second guide roller (77).

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