Yarn insertion level monitoring mechanism and wire mesh braiding machine
By introducing a weft insertion monitoring mechanism into the metal wire mesh weaving machine and using an encoder to monitor the angular displacement signal of the weft wire, the problems of weft breakage and improper weft insertion length are solved, and effective control of the quality of the metal wire mesh is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI YINGKAIMO METAL NET CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-31
AI Technical Summary
Existing metal wire mesh weaving machines are prone to weft breakage, insufficient or excessive weft insertion length during the weft insertion process, leading to product quality defects.
Design a weft insertion length monitoring mechanism, including a front plate, an encoder, and a rotating roller. The encoder measures the angular displacement signal of the weft yarn to monitor the weft insertion length, and a controller is equipped to stop the machine when a problem occurs to avoid quality issues.
It enables timely monitoring and adjustment of broken weft, insufficient or excessive weft insertion length, avoiding quality problems of metal wire mesh and improving the overall quality of the product.
Smart Images
Figure CN224578429U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of wire mesh weaving machine, specifically relating to a weft insertion degree monitoring mechanism and a wire mesh weaving machine. Background Technology
[0002] Metal wire mesh weaving machines are mainly used for weaving metal wire mesh. Several warp wires arranged in parallel form a weaving opening after passing through an alternating mechanism. The weft wires transmitted from the weft wire supply mechanism are then inserted into the weaving opening through the arrow-feeding mechanism (the arrow drives the weft wires). Subsequently, the beat-up mechanism pushes the inserted weft wires forward.
[0003] In existing technologies, problems such as weft breakage, insufficient weft insertion length, and excessive weft insertion can occur during the process of the weft feed arrow driving the weft yarn through the weave. When the weft yarn breaks or is insufficient in length, the woven wire mesh will have localized missing or short weft sections, which will lead to slippage of subsequent weft yarns and cause quality defects. When the weft yarn is too long, it not only wastes raw materials, but the excess portion can also affect the subsequent transmission, also leading to quality defects. Utility Model Content
[0004] This utility model provides a weft insertion degree monitoring mechanism and a metal wire mesh weaving machine, which aims to solve the problems of poor product quality caused by the weft insertion process of existing metal wire mesh weaving machines, such as weft breakage, insufficient weft insertion length, and excessive weft insertion.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] Provide a latitude monitoring mechanism, including:
[0007] A front upright plate is mounted on the frame of the wire mesh weaving machine; the front upright plate is located between the weft yarn supply mechanism and the weft insertion mechanism.
[0008] An encoder, mounted on the front upright plate, has a protruding input end;
[0009] A rotating roller is coaxially connected to the input end of the encoder;
[0010] A defining component is disposed on the frame of a wire mesh weaving machine; the defining component has a pressing part located above the rotating roller and having a continuous tendency to move toward the rotating roller, and a thread-passing channel for the weft yarn to pass through is formed between the pressing part and the rotating roller;
[0011] During the weft insertion process, the weft ribbon drives the rotating roller to rotate, and the encoder measures the weft insertion length through angular displacement. This ensures that staff can promptly monitor problems such as weft breakage, insufficient weft insertion length, or excessive weft insertion length, and make timely adjustments.
[0012] In one possible implementation, a lower annular groove is provided around the outer peripheral surface of the rotating roller to fit and define the weft yarn.
[0013] In one possible implementation, the axis of the rotating roller is set horizontally and perpendicular to the direction of arrow movement in the arrow-throwing mechanism.
[0014] In one possible implementation, the defined component includes:
[0015] The rear upright plate is fixedly mounted on the frame of the wire mesh weaving machine and is located on the side of the front upright plate away from the weft insertion mechanism.
[0016] A tilting arm, one end of which is rotatably connected to the rear upright plate, and the rotation axis of the tilting arm is set parallel to the axis of the rotating roller;
[0017] The pressure roller is located directly above the rotating roller and is rotatably connected to the flipping arm. The axis of the pressure roller is parallel to the axis of the rotating roller. The pressure roller is the pressing part.
[0018] In one possible implementation, an upper annular groove adapted to the weft yarn is provided around the outer circumferential surface of the pressure roller.
[0019] In one possible implementation, the defining component further includes a tension spring, one end of which is connected to the other end of the flipping arm and the other end of which is connected to a hanging shaft disposed on the frame of the wire mesh weaving machine. The tension spring is used to pull the flipping arm to tilt downwards, so that the pressure roller maintains a tendency to continuously move toward and abut against the rotating roller.
[0020] In one possible implementation, the defining component further includes a guide tube horizontally disposed on the rear upright plate, the guide tube having a cavity through which the weft yarn passes and corresponding to the yarn routing channel.
[0021] This utility model also provides a metal wire mesh weaving machine, including
[0022] The aforementioned latitude monitoring agencies;
[0023] The matching controller is electrically connected to the encoder in the degree monitoring mechanism.
[0024] The controller stops the machine after receiving an abnormal signal from the encoder.
[0025] The weft insertion monitoring mechanism provided in this implementation offers a supporting platform via a front upright plate, ensuring encoder installation and allowing the rotating roller to accommodate weft yarn transmission. The limiting component, through continuous contact between the pressure section and the rotating roller, effectively limits the weft yarn passing over the roller, preventing it from detaching. As the weft yarn passes over and rotates the roller, the encoder directly measures the weft yarn transmission distance via angular displacement signals, thus monitoring the weft insertion length. This allows for the detection of weft breakage, insufficient weft insertion length, or excessive weft insertion length. Furthermore, the encoder transmits signals promptly, facilitating timely problem detection and adjustments to the wire mesh weaving machine, effectively preventing quality issues in the woven wire mesh. Attached Figure Description
[0026] Figure 1 Schematic diagram of the weft insertion degree monitoring mechanism and the metal wire mesh weaving machine provided in the embodiments of this utility model Figure 1 ;
[0027] Figure 2 Schematic diagram of the weft insertion degree monitoring mechanism and the metal wire mesh weaving machine provided in the embodiments of this utility model Figure 2 ;
[0028] Explanation of reference numerals in the attached figures:
[0029] 10. Front upright plate; 20. Encoder; 30. Rotary roller; 31. Lower annular groove; 40. Limiting component; 41. Rear upright plate; 42. Tilting arm; 43. Pressure roller; 44. Tension spring; 45. Guide tube; 46. Upper annular groove; 50. Frame. Detailed Implementation
[0030] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0031] Please refer to the following: Figure 1 and Figure 2The weft insertion degree monitoring mechanism provided by this utility model will now be described. The weft insertion degree monitoring mechanism includes a front upright plate 10, an encoder 20, a rotating roller 30, and a limiting component 40. The front upright plate 10 is mounted on the frame 50 of the wire mesh weaving machine. The front upright plate 10 is located between the weft yarn supply mechanism and the weft insertion mechanism. The encoder 20 is mounted on the front upright plate 10 and has an extended input end. The rotating roller 30 is coaxially connected to the input end of the encoder 20. The limiting component 40 is mounted on the frame 50 of the wire mesh weaving machine. The limiting component 40 has a pressing part located above and in contact with the rotating roller 30, forming a thread passage for the weft yarn to pass through between the pressing part and the rotating roller 30.
[0032] Specifically, as the weft yarn enters the weft insertion point during the weft insertion process, it passes through the yarn path and drives the rotating roller 30 to rotate. The encoder 20 measures the weft insertion length by measuring the angular displacement of the rotating roller 30. When a weft break occurs, although the arrow in the weft insertion mechanism is moving, the rotating roller 30 will stop rotating, meaning the encoder 20 stops monitoring. When the weft insertion length is insufficient, meaning the length measured by the encoder 20 is less than the set length, or when the length is too long, meaning the length measured by the encoder 20 is greater than the set length.
[0033] Compared with the prior art, the weft insertion length monitoring mechanism provided in this embodiment provides a supporting platform for the encoder 20, ensuring that the rotating roller 30 can adapt to the transmission of weft yarns. The limiting component 40, through continuous contact with the rotating roller 30 via the pressing part, ensures that the weft yarns passing through the rotating roller 30 are limited, preventing the weft yarns from detaching from the rotating roller 30. As the weft yarns pass over the rotating roller 30 and drive it to rotate, the encoder 20 can directly measure the transmission distance of the weft yarns through angular displacement signals, thereby monitoring the weft insertion length and detecting weft breakage, insufficient weft insertion length, or excessive weft insertion length. Furthermore, the encoder 20 can transmit signals promptly, facilitating timely detection of problems by workers and timely adjustments to the wire mesh weaving machine, effectively preventing quality issues in the woven wire mesh.
[0034] In some embodiments, the rotating roller 30 described above may be as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2 A lower annular groove 31, adapted to the weft yarn, is provided on the outer circumferential surface of the rotating roller 30. The lower annular groove 31 ensures adaptation to the weft yarn, preventing the weft yarn from detaching from the rotating roller 30 during transmission, thereby ensuring the monitoring effect of the degree. At the same time, the lower annular groove 31 also guides the weft yarn, ensuring the straightness of the weft yarn during transmission.
[0035] In this embodiment, the rotating roller 30 can be a rubber roller.
[0036] In some embodiments, the rotating roller 30 described above may be as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2 The axis of the rotating roller 30 is set horizontally and perpendicular to the direction of movement of the arrow in the weft insertion mechanism. This arrangement of the rotating roller 30 ensures that the tangent at its top is in the same direction as the direction of movement of the arrow in the weft insertion mechanism, thereby ensuring the straightness of the weft thread insertion.
[0037] In some embodiments, the aforementioned limiting component 40 may employ, for example... Figures 1 to 2 The structure shown. See also Figures 1 to 2 The limiting component 40 includes a rear upright plate 41, a tilting arm 42, and a pressure roller 43. The rear upright plate 41 is fixedly mounted on the frame 50 of the wire mesh weaving machine and is located on the side of the front upright plate 10 away from the weft insertion mechanism. One end of the tilting arm 42 is rotatably connected to the rear upright plate 41, and the rotation axis of the tilting arm 42 is parallel to the axis of the rotating roller 30. The pressure roller 43 is located directly above the rotating roller 30 and is rotatably connected to the tilting arm 42; the axis of the pressure roller 43 is parallel to the axis of the rotating roller 30. The pressure roller 43 is the thread pressing part.
[0038] The rear upright plate 41 provides a carrier for the tilting arm 42, thereby ensuring the stable rotational connection of the tilting arm 42. A pressure roller 43 is provided on the tilting arm 42. The combination of the pressure roller 43 and the tilting arm 42 forms a cantilever structure. Under the action of gravity, it has a continuous downward tilting tendency, which ensures that the pressure roller 43 has a continuous tendency to move towards the rotating roller 30 and contact the rotating roller 30.
[0039] The pressure roller 43, together with the rotating roller 30, can clamp and limit the weft yarn, thereby ensuring the stability of the weft yarn transmission and ensuring that the rotating roller 30 can rotate stably as the weft yarn is transmitted, avoiding slippage, and thus ensuring the monitoring effect of the degree.
[0040] In some embodiments, the pressure roller 43 may be as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2 An upper annular groove 46 adapted to the weft yarn is provided on the outer circumferential surface of the pressure roller 43.
[0041] The upper annular groove 46 can be adapted to the lower annular groove 31 to jointly limit and guide the weft yarn, ensuring the stability of the weft yarn transmission.
[0042] It should be noted that after the weft yarn passes through the yarn path, the pressure roller 43 and the rotating roller 30 below need to clamp the weft yarn tightly, therefore there is a certain gap between the pressure roller 43 and the rotating roller 30. At the same time, the cross-sections of the upper annular groove 46 and the lower annular groove 31 are both fan-shaped with an arc length of less than 180°.
[0043] In some embodiments, the aforementioned limiting component 40 may employ, for example... Figures 1 to 2 The structure shown. See also Figures 1 to 2 The limiting component 40 also includes a tension spring 44, one end of which is connected to the other end of the flipping arm 42, and the other end is connected to a hanging shaft provided on the frame 50 of the wire mesh weaving machine. The tension spring 44 can pull the flipping arm 42 to tilt downwards, so that the pressure roller 43 maintains a tendency to continuously abut against the rotating roller 30.
[0044] The spring setting can further ensure the clamping force of the pressure roller 43 and the rotating roller 30 on the weft yarn, thereby effectively preventing slippage between the weft yarn and the rotating roller 30, and ensuring the monitoring effect of the encoder 20 on the weft insertion length.
[0045] In some embodiments, the aforementioned limiting component 40 may employ, for example... Figures 1 to 2 The structure shown. See also Figures 1 to 2 The limiting component 40 also includes a guide tube 45, which is horizontally disposed on the rear upright plate 41 and has a cavity for the weft yarn to pass through and corresponding to the yarn routing channel.
[0046] The guide tube 45 ensures that the weft yarn is transmitted in a straight line before entering the yarn path, which can ensure that the weft yarn passes through the yarn path stably. It can also ensure the driving effect of the weft yarn on the rotating roller 30 to a certain extent and ensure the monitoring effect of the weft insertion degree.
[0047] This application also provides a metal wire mesh weaving machine, including the aforementioned weft insertion degree monitoring mechanism and a matching controller. The controller is electrically connected to the encoder 20 in the weft insertion degree monitoring mechanism. The controller can determine whether there is a defect in the weft yarn based on the weft yarn length signal fed back by the encoder 20, and directly control the machine to stop after weft breakage, insufficient weft insertion length, or excessive weft insertion occurs.
[0048] Compared with existing technologies, the metal wire mesh weaving machine provided in this embodiment is equipped with a weft insertion monitoring mechanism. As the weft yarn passes over the rotating roller 30 and drives the roller 30 to rotate, the encoder 20 can directly measure the transmission distance of the weft yarn through angular displacement signals, thereby monitoring the weft insertion length. It can detect weft breakage, insufficient weft insertion length, or excessive weft insertion length. Furthermore, the encoder 20 can promptly transmit signals to the controller, which can directly stop the machine upon encountering the aforementioned problems. This allows staff to promptly identify issues and adjust the metal wire mesh weaving machine, effectively preventing quality problems in the woven metal wire mesh.
[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A degree of insertion monitoring mechanism, characterized by, include: A front upright plate is mounted on the frame of the wire mesh weaving machine; the front upright plate is located between the weft yarn supply mechanism and the weft insertion mechanism. An encoder, mounted on the front upright plate, has a protruding input end; A rotating roller is coaxially connected to the input end of the encoder; A defining component is disposed on the frame of a wire mesh weaving machine; the defining component has a pressing part located above the rotating roller and having a continuous tendency to move toward the rotating roller, and a thread-passing channel for the weft yarn to pass through is formed between the pressing part and the rotating roller; During the weft insertion process, the weft ribbon drives the rotating roller to rotate, and the encoder measures the weft insertion length by angular displacement.
2. An insert degree monitoring mechanism according to claim 1, wherein The outer circumferential surface of the rotating roller is provided with a lower annular groove adapted to the weft yarn.
3. The weft thread insertion quality monitoring mechanism according to claim 1, wherein, The axis of the rotating roller is set horizontally and perpendicular to the direction of movement of the arrow in the arrow-throwing and weft-feeding mechanism.
4. The weft thread insertion quality monitoring mechanism according to any one of claims 1 to 3, characterized in that, The defined components include: The rear upright plate is fixedly mounted on the frame of the wire mesh weaving machine and is located on the side of the front upright plate away from the weft insertion mechanism. A tilting arm, one end of which is rotatably connected to the rear upright plate, and the rotation axis of the tilting arm is set parallel to the axis of the rotating roller; The pressure roller is located directly above the rotating roller and is rotatably connected to the flipping arm. The axis of the pressure roller is parallel to the axis of the rotating roller. The pressure roller is the pressing part.
5. The weft extension monitoring mechanism as described in claim 4, characterized in that, The outer circumferential surface of the pressure roller is provided with an upper annular groove adapted to the weft yarn.
6. The weft extension monitoring mechanism as described in claim 4, characterized in that, The limiting component also includes a tension spring, one end of which is connected to the other end of the flipping arm, and the other end is connected to a hanging shaft provided on the frame of the wire mesh weaving machine. The tension spring is used to pull the flipping arm to tilt downwards, so that the pressure roller maintains a tendency to continuously move toward and abut against the rotating roller.
7. The weft extension monitoring mechanism as described in claim 4, characterized in that, The limiting component also includes a guide tube, which is horizontally disposed on the rear upright plate and has a cavity through which the weft yarn passes and corresponds to the yarn routing channel.
8. A wire mesh weaving machine, characterized in that, include: The latitude monitoring mechanism as described in any one of claims 1-7; The matching controller is electrically connected to the encoder in the weft insertion degree monitoring mechanism; The controller stops the machine after receiving an abnormal signal from the encoder.