Yarn breakage monitoring device for polyester fabric weaving

Abstract

The utility model discloses a broken yarn monitoring device for polyester fabric weaving, which comprises a rack, a plurality of annular frames are mounted on the rack, a spool disc and a monitoring disc are rotatably connected in the annular frames, a fixing block for fixing a spool is mounted at the top of the spool disc, and a force transducer is mounted at the bottom of the spool disc. Through the cooperative arrangement of the force measurement sensor and the extrusion block, when the yarn is wound on the yarn drum, the traction force of the yarn drum on the yarn enables the extrusion block to increase the force for extruding the force measurement sensor, so that when the yarn is broken, the reading of the force measurement sensor changes, and the defect that the yarn is easy to break due to the fact that the additional force on the yarn is increased during monitoring in a traditional mode is avoided; through the cooperative arrangement of the disc shaped like the Chinese character'ji 'and the linear driver, when broken yarns are wound by the yarn drums, the disc shaped like the Chinese character'ji' at the position is moved upwards by the linear driver and is separated from the driving of the rotary driving device, so that when one rotary driving device drives a plurality of yarn drums to wind, all the yarn drums do not need to stop rotating by one broken yarn.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn breakage monitoring in polyester cloth weaving, in particular to a yarn breakage monitoring device in polyester cloth weaving. Background Art

[0002] Yarn break monitoring is an important function. It is used in the process of weaving polyester fabrics to monitor the occurrence of yarn breakage during the process of threading, conducting, and taking up. Once a yarn breakage occurs, an alarm will be triggered immediately. The existing yarn breakage monitoring mainly determines whether the yarn is broken by the thread take-up spring on the thread clamp. The thread take-up spring will be pressed down after hanging the yarn, and will elastically reset after the yarn breaks. Therefore, most of the existing equipment has a copper column contact above the thread take-up spring. Once the thread take-up spring is detected to touch the upper contact, it is determined that the yarn is broken.

[0003] In the prior art, when the yarn is collected onto the yarn tube during the weaving process of polyester cloth, it is necessary to monitor the yarn breakage to avoid the yarn tube from idling. However, the prior art yarn breakage monitoring device will increase the pressure on the yarn during monitoring, thereby increasing the probability of yarn breakage. Therefore, it is necessary to design a yarn breakage monitoring device for weaving polyester cloth. Utility Model Content

[0004] Based on this, it is necessary to provide a yarn break monitoring device for weaving polyester cloth to address the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a yarn break monitoring device for weaving polyester cloth, comprising a frame, a plurality of annular frames are installed on the frame, a yarn bobbin disk and a monitoring disk are rotatably connected in the annular frames, a fixing block for fixing the yarn bobbin is installed on the top of the yarn bobbin disk, a force sensor is installed on the bottom of the yarn bobbin disk, an extrusion block is installed on the monitoring disk, the extrusion block abuts against the force sensor, the force sensor is located in the rotational forward direction of the extrusion block, a rotation driving device is installed on the frame, and the output end of the rotation driving device is transmission-connected to the plurality of monitoring disks through a belt drive assembly.

[0006] Preferably, it also includes several types of discs, several pulley shafts are installed on the frame, the output end of the rotary drive device is connected to the several pulley shafts through a belt drive assembly, a clamping block is installed on the top of the pulley shaft, the clamping block is slidably engaged with the several types of discs, a clamping groove is provided in the monitoring disc, the several types of discs are slidably engaged in the clamping groove, a linear drive is installed on the frame, a slide is installed on the output end of the linear drive, a linear actuator is installed on the slide, and the output end of the linear actuator is arranged in coordination with the several types of discs.

[0007] Preferably, a protrusion is installed on the monitoring plate, and the extrusion block is installed on the protrusion by bolts.

[0008] Preferably, the extrusion block and the force sensor are two symmetrically arranged around the center of the monitoring disk.

[0009] Preferably, a mounting groove is provided on the yarn bobbin disc, and the force sensor is installed in the mounting groove.

[0010] Preferably, a plurality of sound and light alarms are installed on the frame, and the plurality of sound and light alarms correspond to the yarn cone disks one by one.

[0011] Preferably, a push block is slidably engaged in the slide seat, and the output end of the linear actuator is connected to the push block.

[0012] Compared with the prior art, this technical solution has at least one of the following beneficial effects:

[0013] Through the coordinated setting of the force sensor and the extrusion block, when the yarn is wound around the bobbin, the traction force of the bobbin on the yarn causes the extrusion block to increase the force of squeezing the force sensor, so that when the yarn is broken, the reading of the force sensor will change, avoiding the disadvantage of adding extra force to the yarn during traditional monitoring, which makes the yarn easy to break;

[0014] Through the coordinated arrangement of the several-shaped disc and the linear drive, when the yarn is broken during winding of the yarn bobbin, the linear drive moves the several-shaped disc upward and disengages the drive of the rotary drive device, so that when a rotary drive device drives multiple yarn bobbins to be wound, if one of the yarns breaks, it is not necessary to stop all the yarn bobbins. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0016] Figure 2 A front cross-sectional view of an embodiment of the utility model;

[0017] Figure 3 A front view of an embodiment of the utility model Figure 2 picture;

[0018] Figure 4 A three-dimensional view of the interior of a ring frame according to an embodiment of the utility model;

[0019] Figure 5 A top cross-sectional view of an embodiment of the utility model;

[0020] In the figure, 1, frame; 2, ring frame; 3, yarn cone disk; 4, monitoring disk; 5, fixing block; 6, force sensor; 7, extrusion block; 8, rotary drive device; 9, several-shaped disc; 10, pulley shaft; 11, clamping block 1; 12, clamping slot; 13, linear drive; 14, slide; 15, linear actuator; 16, protrusion; 17, bolt; 18, mounting slot; 19, sound and light alarm; 20, push block. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model 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 utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] See also Figures 1 to 5 The embodiment of the present application provides a yarn break monitoring device for weaving polyester cloth, including a frame 1, a plurality of annular frames 2 are installed on the frame 1, a yarn tube disk 3 and a monitoring disk 4 are rotatably connected in the annular frame 2, a fixing block 5 for fixing the yarn tube is installed on the top of the yarn tube disk 3, a force sensor 6 is installed at the bottom of the yarn tube disk 3, the force sensor 6 can be a pressure sensor with high precision, an extrusion block 7 is installed on the monitoring disk 4, the extrusion block 7 is abutted against the force sensor 6, and the force sensor 6 is located in the rotation forward direction of the extrusion block 7, a rotation driving device 8 is installed on the frame 1, the rotation driving device 8 can be a motor, and the output end of the rotation driving device 8 is transmission-connected to the plurality of monitoring disks 4 through a belt drive assembly.

[0023] In this embodiment, the rotary drive device 8 drives several monitoring disks 4 to rotate together. When the monitoring disk 4 rotates, the squeezing block 7 thereon squeezes the force sensor 6 at the bottom of the yarn tube disk 3, so that the pressure on the force sensor 6 drives the yarn tube disk 3 to rotate. At this time, the yarn tube disk 3 and the monitoring disk 4 in the annular frame 2 both rotate, and the yarn tube connected to the fixing block 5 at the bottom begins to guide the yarn to be wound on the yarn tube disk 3. During the winding process, the traction force of the yarn tube pulling the yarn is always the same, and as the yarn is wound on the yarn tube, the gravity of the yarn tube increases, so the reading of the force sensor 6 is in a state of gradually increasing regularly. When the yarn breaks, the initial reading of the force sensor 6 including the traction force disappears, and the reading of the force sensor 6 decreases. Since the weight of the yarn tube remains unchanged after the yarn breaks, the reading of the force sensor 6 becomes constant afterwards. It can be concluded that the yarn breaks. Therefore, without adding additional pressure to the yarn, the yarn break monitoring during the winding of the polyester fabric weaving yarn is realized.

[0024] In some embodiments, in order to further improve the cooling efficiency of the quenching roller 4 and the material, several types of discs 9 are set, and several pulley shafts 10 are installed on the frame 1. The output end of the rotary drive device 8 is connected to the several pulley shafts 10 through a belt transmission assembly. A clamping block 11 is installed on the top of the pulley shaft 10. The clamping block 11 is slidably engaged with the several types of discs 9. A clamping groove 12 is provided in the monitoring disk 4. The several types of discs 9 are slidably engaged in the clamping groove 12. A linear drive 13 is installed on the frame 1. The linear drive 13 can be an electric slide. A slide seat 14 is installed at the output end of the linear drive 13. A linear actuator 15 is installed on the slide seat 14. The linear actuator 15 can be an electric cylinder. The output end of the linear actuator 15 is arranged in coordination with the several types of discs 9. When yarn breakage occurs, the linear drive 13 drives the slide 14 installed at its output end to move, and the slide 14 drives the linear actuator 15 to move to a suitable position and then begins to stretch, so that the bottom of the several-shaped disc 9 is separated from the block 11 set on the top of the pulley shaft 10, so that the monitoring disc 4 is no longer driven by the pulley shaft 10 and the rotation drive device 8. During normal transmission, the square structure on the top of the several-shaped disc 9 is clamped in the groove 12 on the monitoring disc 4, and the block 11 on the top of the pulley shaft 10 is clamped at the bottom of the several-shaped disc 9, so that the monitoring disc 4 can be driven by the pulley shaft 10 to rotate; in the prior art, two to three yarn bobbins are usually driven by a rotation drive device 8 to wind up, so a linear actuator 15 can be set according to the probability of yarn breakage, and when a rotation drive device 8 drives multiple, the linear drive 13 can be changed into a number of guide rail vehicles driven by servo motors.

[0025] In some embodiments, in order to facilitate the replacement of the force sensor 6 , a protrusion 16 is installed on the monitoring plate 4 , and the extrusion block 7 is installed on the protrusion 16 by means of bolts 17 .

[0026] In some embodiments, in order to avoid inaccurate monitoring caused by a single force sensor 6 , two extrusion blocks 7 and force sensors 6 are arranged symmetrically around the center of the monitoring disk 4 .

[0027] In some embodiments, in order to facilitate the installation and protection of the force sensor 6 , a mounting groove 18 is provided on the bobbin disk 3 , and the force sensor 6 is installed in the mounting groove 18 .

[0028] In some embodiments, in order to send out a signal in time after yarn breakage, a plurality of sound and light alarms 19 are installed on the frame 1, and the plurality of sound and light alarms 19 correspond to the yarn cone disks 3 one by one.

[0029] In some embodiments, in order to facilitate the protection of the linear actuator 15 , a push block 20 is provided in the slide seat 14 and is slidably engaged therein, and the output end of the linear actuator 15 is connected to the push block 20 .

[0030] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0032] 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 a limitation on the present invention.

[0033] 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 utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] 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.

Claims

1. A yarn breakage monitoring device for weaving polyester fabric, comprising a frame (1), characterized in that: The frame (1) is provided with a plurality of annular frames (2), wherein a yarn bobbin disk (3) and a monitoring disk (4) are rotatably connected in the annular frames (2), a fixing block (5) for fixing the yarn bobbin is installed on the top of the yarn bobbin disk (3), a force sensor (6) is installed on the bottom of the yarn bobbin disk (3), an extrusion block (7) is installed on the monitoring disk (4), the extrusion block (7) is in contact with the force sensor (6), and the force sensor (6) is located in the rotational forward direction of the extrusion block (7), and a rotation driving device (8) is installed on the frame (1), and the output end of the rotation driving device (8) is transmission-connected to the plurality of monitoring disks (4) via a belt transmission assembly.

2. The yarn breakage monitoring device for polyester fabric weaving according to claim 1, characterized in that: The invention also comprises several types of discs (9), a frame (1) is provided with several pulley shafts (10), the output end of the rotary drive device (8) is connected to the several pulley shafts (10) through a belt transmission assembly, a clamping block (11) is installed on the top of the pulley shaft (10), the clamping block (11) is slidably engaged with the several types of discs (9), a clamping groove (12) is provided in the monitoring disc (4), the several types of discs (9) are slidably engaged in the clamping groove (12), a linear drive (13) is installed on the frame (1), a slide seat (14) is installed on the output end of the linear drive (13), a linear actuator (15) is installed on the slide seat (14), and the output end of the linear actuator (15) is arranged in cooperation with the several types of discs (9).

3. The yarn breakage monitoring device for polyester fabric weaving according to claim 1, characterized in that: The monitoring plate (4) is provided with a protrusion (16), and the extrusion block (7) is mounted on the protrusion (16) via bolts (17).

4. The yarn breakage monitoring device for polyester fabric weaving according to claim 1, characterized in that: The extrusion block (7) and the force sensor (6) are two symmetrically arranged around the center of the monitoring plate (4).

5. The yarn breakage monitoring device for polyester fabric weaving according to claim 1, characterized in that: The yarn bobbin disk (3) is provided with a mounting groove (18), and the force sensor (6) is mounted in the mounting groove (18).

6. The yarn breakage monitoring device for polyester fabric weaving according to claim 1, characterized in that: A plurality of sound and light alarms (19) are installed on the frame (1), and the plurality of sound and light alarms (19) correspond one to one with the yarn cone disks (3).

7. The yarn breakage monitoring device for polyester fabric weaving according to claim 2, characterized in that: A push block (20) is slidably engaged in the slide seat (14), and an output end of the linear actuator (15) is connected to the push block (20).

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