Metering device of winding machine

Abstract

The utility model discloses a metering device of a winding machine, which comprises a support, a mounting seat, a first rotating shaft, a metering wheel, a first sensor, a pinch roller mechanism and an adjusting mechanism, the mounting seat and the first sensor are fixedly mounted on the support, the first rotating shaft is rotatably mounted on the mounting seat, the metering wheel is fixedly mounted on the first rotating shaft, and the pinch roller mechanism is fixedly mounted on the first rotating shaft. The device is characterized in that a plurality of sliding grooves are formed in the mounting base, and the pressing wheel mechanism comprises a sliding arm, a second rotating shaft and a pressing wheel. Yarns are pressed on the metering wheel through the multiple pressing wheels, pressure on the yarns is dispersed, the situation that the pressure of the yarns is concentrated can be avoided, the yarns and the metering wheel can be effectively prevented from sliding during metering, meanwhile, the yarns are prevented from being extruded to deform, and the yarns are prevented from being snapped in the metering process; the distance between the pressing wheels and the metering wheels is synchronously adjusted through the adjusting mechanism, so that the extrusion force of the pressing wheels on the yarns is conveniently adjusted, and the yarns with different thicknesses are conveniently metered.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to a metering device for a winding machine. Background Art

[0002] Yarn is a textile product processed from various textile fibers into a certain fineness. It is used for weaving, rope making, thread making, knitting and embroidery, etc. It is divided into short-staple yarn, continuous filament, etc. There are many ways to express the fineness of yarn, such as number, metric count, imperial count, denier, etc. The twist of yarn is expressed in the number of twists per meter or per inch.

[0003] In the existing metering devices, the patent with patent authorization announcement number CN208059750U discloses a technical solution, including a support frame, a fixed plate is provided on the support frame, and the fixed plate is fixed to the support frame by screws, a metering box is vertically fixed on the side of the fixed plate away from the support frame, a metering rod is horizontally and rotatably provided inside the metering box, one end of the metering rod passes through the side wall of the metering box and extends to the outside of the metering box and is connected to a rotation counter, the rotation counter is fixed on the outer wall of the metering box, a metering wheel is coaxially and vertically fixed on the metering rod inside the metering box, the metering wheel is provided with an annular groove in the circumferential direction, and a wire pressing wheel is provided above the groove.

[0004] The above technical solution has at least the following disadvantages: the yarn is squeezed by a crimping wheel and pressed against the metering wheel to prevent sliding between the yarn and the metering wheel during metering, and then the metering wheel and the crimping wheel are driven to rotate by the yarn. Since only one crimping wheel is provided, the crimping wheel, the yarn and the metering wheel are in contact at one point, where the pressure is concentrated. The crimping wheel needs to exert a greater pressure to effectively prevent sliding between the yarn and the metering wheel during metering, which causes the yarn to be squeezed and deformed, destroying the structure of the yarn and easily causing the yarn to be broken during the metering process. Utility Model Content

[0005] Based on this, it is necessary to provide a metering device for a winding machine that can avoid the pressure concentration of the pressure wheel on the yarn and avoid sliding between the yarn and the metering wheel in order to solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a metering device of a winding machine, including a bracket, a mounting seat, a first rotating shaft, a metering wheel and a first sensor, the mounting seat and the first sensor are fixedly mounted on the bracket, the first rotating shaft is rotatably mounted on the mounting seat, the metering wheel is fixedly mounted on the first rotating shaft, and the first sensor detects the number of rotations of the first rotating shaft, characterized in that a plurality of slide grooves are provided on the mounting seat, the center lines of each slide groove intersect with the axis of the first rotating shaft, each slide groove is connected to a pressure wheel mechanism, the pressure wheel mechanism includes a sliding arm, one end of the sliding arm is slidably inserted in the slide groove, the other end of the sliding arm extends out of the slide groove and is rotatably mounted with a second rotating shaft, a pressure wheel is mounted at one end of the second rotating shaft, and the pressure wheel is coordinated with the metering wheel; it also includes an adjustment mechanism, the adjustment mechanism drives the sliding arms of each pressure wheel mechanism to move synchronously, so that each pressure wheel approaches or moves away from the metering wheel synchronously; the distance between each pressure wheel and the metering wheel is equal.

[0007] Preferably, the adjustment mechanism includes a large gear and an arc-shaped slot hole. The large gear is coaxially arranged with the first rotating shaft. The large gear is provided with arc-shaped slot holes corresponding to the sliding arms one by one, and the centers of the arc-shaped slot holes are concentrically arranged. The pressure wheel mechanism also includes a lever, one end of which is fixedly connected to the sliding arm, and the other end of the lever is slidably inserted in the arc-shaped slot hole.

[0008] Preferably, the first rotating shaft is rotatably mounted on the mounting seat via a first bearing, the second rotating shaft is rotatably mounted on the sliding arm via a second bearing, and the large gear is rotatably mounted on the first rotating shaft via a third bearing.

[0009] Preferably, the adjustment mechanism further includes a pinion and a drive motor, the drive motor is fixedly mounted on the bracket, the output shaft of the drive motor is mounted with a pinion, and the pinion is meshingly connected with the large gear.

[0010] Preferably, the pressing wheel mechanism further includes a second sensor, which is fixedly mounted on the sliding arm and detects the number of rotations of the second rotating shaft.

[0011] Preferably, an annular groove is provided on the wheel surface of the metering wheel.

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

[0013] By setting multiple pressing wheels to press the yarn on the metering wheel, the pressure on the yarn is dispersed, which can avoid the situation where the yarn pressure is concentrated due to the design of a single pressing wheel, and ensure that the total pressure on the yarn is not too small, which can effectively prevent the yarn from sliding between the metering wheel and the metering wheel during metering, and prevent the yarn from being squeezed and deformed, and prevent the yarn from being broken during the metering process;

[0014] The number of rotations of the first rotating shaft is detected by the first sensor, and the passing length of the yarn can be obtained by calculating the number of rotations of the first rotating shaft and the diameter of the metering wheel. The number of rotations of the second rotating shaft is detected by the second sensor, and the passing length of the yarn can be obtained by calculating the number of rotations of the second rotating shaft and the diameter of the pressure wheel. By comparing the passing length of the yarn obtained by the number of rotations detected by the second sensor with that by the first sensor, it is convenient to correct the actual passing length of the yarn, and avoid the occurrence of errors caused by the failure of the first sensor;

[0015] The distance between each pressing wheel and the metering wheel can be adjusted synchronously by the adjusting mechanism, so as to facilitate the adjustment of the squeezing force of the pressing wheel on the yarn and to facilitate the metering of yarns of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 for Figure 1 Sectional view along line AA;

[0018] Figure 3 It is a front view of an embodiment of the utility model;

[0019] In the figure, 1, bracket; 2, mounting seat; 21, slide groove; 3, first rotating shaft; 4, metering wheel; 41, ring groove; 5, first sensor; 6, pressure wheel mechanism; 61, sliding arm; 62, second rotating shaft; 63, pressure wheel; 64, lever; 65, second sensor; 7, adjustment mechanism; 71, large gear; 72, arc-shaped slot; 73, small gear; 74, driving motor; 8, yarn. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 3The embodiment of the present application provides a metering device for a winding machine, including a bracket 1, a mounting seat 2, a first rotating shaft 3, a metering wheel 4 and a first sensor 5. The mounting seat 2 and the first sensor 5 are fixedly mounted on the bracket 1, the first rotating shaft 3 is rotatably mounted on the mounting seat 2 through a first bearing, the metering wheel 4 is fixedly mounted on the first rotating shaft 3, and the first sensor 5 detects the number of rotations of the first rotating shaft 3. It is characterized in that a plurality of slide grooves 21 are provided on the mounting seat 2, the center lines of each slide groove 21 intersect with the axis of the first rotating shaft 3, and each slide groove 21 is connected to a pressure wheel mechanism 6. The pressing wheel mechanism 6 includes a sliding arm 61, one end of the sliding arm 61 is slidably inserted in the sliding groove 21, the other end of the sliding arm 61 extends out of the sliding groove 21 and is rotatably mounted with a second rotating shaft 62, the second rotating shaft 62 is rotatably mounted on the sliding arm 61 through a second bearing, a pressing wheel 63 is mounted at one end of the second rotating shaft 62, and the pressing wheel 63 is arranged in cooperation with the metering wheel 4; it also includes an adjusting mechanism 7, the adjusting mechanism 7 drives the sliding arms 61 of each pressing wheel mechanism 6 to move synchronously, so that each pressing wheel 63 is synchronously close to or away from the metering wheel 4; the distance between each pressing wheel 63 and the metering wheel 4 is equal.

[0022] The adjusting mechanism 7 includes a large gear 71, an arc-shaped slot 72, a small gear 73 and a driving motor 74. The driving motor 74 is a stepping motor equipped with a worm gear reducer. The large gear 71 is coaxially arranged with the first rotating shaft 3. The large gear 71 is rotatably mounted on the first rotating shaft 3 through a third bearing. The large gear 71 is provided with arc-shaped slots 72 corresponding to the sliding arms 61 one by one, and the centers of the arc-shaped slots 72 are concentrically arranged; the pressing wheel mechanism 6 also includes a lever 64, one end of which is fixedly connected to the sliding arm 61, and the other end of the lever 64 is slidably inserted in the arc-shaped slot 72; the driving motor 74 is fixedly installed on the bracket 1, and a small gear 73 is installed on the output shaft of the driving motor 74, and the small gear 73 is meshed with the large gear 71.

[0023] In order to accurately detect the number of winding turns and avoid errors caused by failure of the first sensor 5, the pressure wheel mechanism 6 is provided to further include a second sensor 65, which is fixedly mounted on the sliding arm 61 and detects the number of rotations of the second rotating shaft 62. The second sensor 65 and the first sensor 5 detect the number of turns at the same time, which facilitates the correction of the number of turns. The first sensor 5 and the second sensor 65 are both Hall sensors, and of course, other sensors that can detect the number of rotations of shaft parts, such as angle sensors and photoelectric sensors, can also be used.

[0024] To prevent the yarn 8 from escaping from the metering wheel 4, an annular groove 41 is provided on the wheel surface of the metering wheel 4. The annular groove 41 can restrict the yarn 8 on the metering wheel 4. The thickness of the pressure wheel 63 is smaller than the width of the annular groove 41, which can facilitate the pressure wheel 63 to enter the annular groove 41 and contact the yarn 8.

[0025] The working principle of this embodiment:

[0026] The yarn 8 is pressed against the metering wheel 4 by a plurality of pressure wheels 63, and the pressure of each pressure wheel 63 on the yarn 8 and the metering wheel 4 is set to be relatively small. By setting a plurality of pressure wheels 63, the pressure on the yarn 8 is dispersed, which can avoid the concentration of pressure on the yarn 8 and ensure that the total pressure on the yarn 8 is not too small, and can effectively prevent the yarn from sliding between the metering wheel 4 and the metering wheel 4, and at the same time avoid the yarn 8 from being squeezed and deformed, and avoid the yarn 8 from being broken during the metering process; the first sensor 5 detects the number of rotations of the first rotating shaft 3, and the passing length of the yarn 8 can be obtained by calculating the number of rotations of the first rotating shaft 3 and the diameter of the metering wheel 4; the second sensor 65 detects the number of rotations of the second rotating shaft 62, and the passing length of the yarn 8 can be obtained by calculating the number of rotations of the second rotating shaft 62 and the diameter of the pressure wheel 63; by comparing the passing length of the yarn 8 obtained by the second sensor 65 and the first sensor 5 detecting the number of rotations, it is convenient to correct the actual passing length of the yarn 8 and avoid the occurrence of errors caused by the failure of the first sensor 5.

[0027] When it is necessary to wind yarns 8 of different thicknesses, the spacing between the pressure wheel 63 and the metering wheel 4 can be adjusted to adjust the squeezing pressure on the yarn 8. Specifically, the drive motor 74 is started, the drive motor 74 drives the small gear 73 to rotate, the small gear 73 drives the large gear 71 to rotate, and the large gear 71 drives the lever 64 to move through the arc-shaped slot 72. The sliding arm 61 is guided by the slide groove 21, so that the arc-shaped slot 72 drives the lever 64 to move in a radial straight line along the first rotating shaft 3, thereby driving each sliding arm 61 and the pressure wheel 63 to move synchronously, approaching or moving away from the metering wheel 4.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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 metering device for a winding machine, comprising a bracket (1), a mounting seat (2), a first rotating shaft (3), a metering wheel (4) and a first sensor (5), wherein the mounting seat (2) and the first sensor (5) are fixedly mounted on the bracket (1), the first rotating shaft (3) is rotatably mounted on the mounting seat (2), the metering wheel (4) is fixedly mounted on the first rotating shaft (3), and the first sensor (5) detects the number of rotations of the first rotating shaft (3), characterized in that: The mounting seat (2) is provided with a plurality of slide grooves (21), the center lines of the slide grooves (21) intersecting the axis of the first rotating shaft (3), and the slide grooves (21) are connected to a pressing wheel mechanism (6), the pressing wheel mechanism (6) comprising a sliding arm (61), one end of the sliding arm (61) being slidably inserted in the slide groove (21), the other end of the sliding arm (61) extending out of the slide groove (21) and being rotatably mounted with a second rotating shaft (62), one end of the second rotating shaft (62) being mounted with a pressing wheel (63), the pressing wheel (63) being arranged in cooperation with the metering wheel (4); and also comprising an adjusting mechanism (7), the adjusting mechanism (7) driving the sliding arms (61) of the pressing wheel mechanisms (6) to move synchronously, so that the pressing wheels (63) are synchronously approached or moved away from the metering wheel (4); and the distances between the pressing wheels (63) and the metering wheel (4) are equal.

2. The metering device for a winding machine according to claim 1, characterized in that: The adjusting mechanism (7) comprises a large gear (71) and an arcuate slot (72). The large gear (71) is coaxially arranged with the first rotating shaft (3). The large gear (71) is provided with arcuate slots (72) corresponding to the sliding arms (61) one by one. The centers of the arcuate slots (72) are concentrically arranged. The pressing wheel mechanism (6) further comprises a lever (64). One end of the lever (64) is fixedly connected to the sliding arm (61), and the other end of the lever (64) is slidably inserted into the arcuate slot (72).

3. The metering device for a winding machine according to claim 2, characterized in that: The first rotating shaft (3) is rotatably mounted on the mounting seat (2) via a first bearing, the second rotating shaft (62) is rotatably mounted on the sliding arm (61) via a second bearing, and the large gear (71) is rotatably mounted on the first rotating shaft (3) via a third bearing.

4. The metering device for a winding machine according to claim 2, characterized in that: The adjustment mechanism (7) further comprises a pinion (73) and a drive motor (74); the drive motor (74) is fixedly mounted on the bracket (1); the output shaft of the drive motor (74) is mounted with the pinion (73); the pinion (73) is meshingly connected with the large gear (71).

5. The metering device for a winding machine according to claim 1, characterized in that: The pressing wheel mechanism (6) further comprises a second sensor (65), the second sensor (65) being fixedly mounted on the sliding arm (61), and the second sensor (65) detecting the number of rotations of the second rotating shaft (62).

6. The metering device for a winding machine according to claim 1, characterized in that: An annular groove (41) is provided on the wheel surface of the metering wheel (4).

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