A guide wire mechanism and a thread winding device

Abstract

The utility model relates to a kind of guide mechanism and silk thread winding device, belong to textile machinery field.Guide mechanism includes frame body and at least two guide pulleys rotationally arranged on frame body, frame body is also provided with rotary power source, guide mechanism further includes flexible rotary member with each guide pulley transmission cooperation, flexible rotary member is formed with the straight line segment for being parallelly spaced with silk cylinder under the action of two guide pulleys, straight line segment is fixedly provided with guide member for guiding silk thread on it.The flexible rotary member is belt or chain, and the corresponding guide pulley is belt pulley or sprocket, compared with screw nut mechanism, no need precision machining, can reduce processing cost.At the same time, compared with screw nut mechanism, belt or chain can have higher running speed, more easily match the high-speed winding of silk thread, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to a yarn guiding mechanism and a yarn winding device, belonging to the field of textile machinery. Background Technology

[0002] In the textile industry, silk thread is the foundation of all production. After production, the silk thread needs to be wound onto a bobbin to form a roll that is easy to transport. During the winding process, individual silk threads need to be wound onto the bobbin, and the threads need to be distributed as evenly as possible on the bobbin. Therefore, a guide structure that can move relative to the bobbin to guide the silk threads is usually provided.

[0003] For example, Chinese invention patent application CN116730095A, published on September 12, 2023, discloses a guide mechanism for winding elastic yarn. The guide mechanism includes a reciprocating screw with a spiral groove. Two guide rods are arranged on both sides of the reciprocating screw, which are parallel to the axis of the reciprocating screw and spaced apart. The guide rods are provided with guide grooves. The wire guiding mechanism also includes a sliding plate that slides and engages with two guide rods. The sliding plate is provided with a transmission cam that engages with the helical groove of the reciprocating screw. A rabbit head (i.e., a guide structure) is also fixedly provided on the sliding plate. When the reciprocating screw rotates under the drive of the rotary power source, the helical groove on the reciprocating screw engages with the transmission cam on the sliding plate to drive the sliding plate to move. Under the restriction of the two guide rods, the sliding plate can only move along the axial direction of the reciprocating screw. That is, at this time, the reciprocating screw, the sliding plate, and the two guide rods constitute a screw-nut mechanism. Correspondingly, the rabbit head can reciprocate under the action of the sliding plate, thereby guiding the wire so that the wire is evenly wound on the wire spool.

[0004] The above technical solution uses a lead screw and nut mechanism to control the rabbit head. However, during the movement of the transmission cam shaft relative to the reciprocating lead screw, it needs to overcome the friction between the two. This means the transmission cam shaft cannot move too fast; otherwise, it will generate excessive heat due to friction, leading to decreased accuracy or even jamming, making it unable to match the high-speed winding of the thread and affecting production efficiency. Furthermore, the helical grooves on the reciprocating lead screw and transmission cam shaft require precision machining, resulting in high processing costs. Utility Model Content

[0005] The purpose of this utility model is to provide a wire guiding mechanism to solve the problem that the existing technology uses a screw and nut mechanism to control the rabbit head, which leads to the inability to match the high-speed winding of the wire, affecting production efficiency and resulting in high processing costs; the purpose of this utility model is also to provide a wire winding device to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the wire guide mechanism in this utility model adopts the following technical solution: A wire guiding mechanism includes a frame and at least two guide wheels rotatably mounted on the frame. The frame is also provided with a rotary power source for driving one of the guide wheels to alternately rotate forward and backward. The wire guiding mechanism also includes a flexible rotating component that drives each guide wheel. The flexible rotating component is a belt or chain, and the corresponding guide wheel is a pulley or sprocket. Under the action of two of the guide wheels, the flexible rotating component forms a straight segment that is arranged parallel to and spaced apart from the wire spool. A wire guide is fixedly mounted on the straight segment for guiding the wire. The wire guide is used to perform reciprocating linear motion between two adjacent guide wheels under the drive of the rotary power source.

[0007] Furthermore, at least three guide wheels are provided, with the guide wheel driven by the rotational power source being the driving wheel, and the guide wheels at both ends of the straight segment being driven wheels.

[0008] Furthermore, the guide wheels at both ends of the straight segment have the same diameter, and both are smaller than the diameter of the driving wheel.

[0009] Furthermore, the frame includes a mounting plate, guide wheels are disposed on one side of the mounting plate, and a rotational power source is fixedly disposed on the side of the mounting plate away from the guide wheels.

[0010] Furthermore, the rotation axis of the rotary power source extends in the vertical direction.

[0011] Furthermore, the guide wire component includes a guide wire housing for being fixedly mounted on the flexible rotating component and a rabbit wire head that is separately mounted from the guide wire housing.

[0012] Furthermore, one of the guide wire housing and the rabbit wire head is provided with a slot, and the other is provided with a locking post that mates with the slot. The rabbit wire head and the guide wire housing are interference-fitted through the slot and the locking post.

[0013] Furthermore, three guide wheels are provided, the distance from the axis of the driving wheel to the axes of the two driven wheels is the same, and the flexible rotating component is an isosceles triangle.

[0014] The beneficial effects of the wire guiding mechanism in this utility model are as follows: This utility model innovatively proposes a wire guiding mechanism that facilitates the winding of the flexible rotating component around the outer circumference of the guide wheels using at least two guide wheels and a flexible rotating component. One of the guide wheels is connected to a rotary power source, which drives the guide wheel to alternately rotate forward and backward, thus driving the flexible rotating component to reciprocate. Under the action of the two guide wheels, the flexible rotating component forms a straight segment that is parallel and spaced apart from the wire spool. A wire guide is fixedly installed on this straight segment to guide the wire. Thus, when the rotary power source drives the guide wheels to alternately rotate forward and backward, it can drive the flexible rotating component to reciprocate, thereby causing the wire guide to perform reciprocating linear motion between adjacent guide wheels, achieving the function of guiding the wire. Since the flexible rotating component is a belt or chain, and the corresponding guide wheel is a pulley or sprocket, compared to a screw and nut mechanism, no precision machining is required, reducing processing costs. At the same time, belts or chains can have higher operating speeds than screw and nut mechanisms, making it easier to match the high-speed winding of the wire and improving production efficiency.

[0015] To achieve the above objectives, the yarn winding device of this utility model adopts the following technical solution: A yarn winding device includes a yarn bobbin fixing frame for fixing a yarn bobbin and a yarn guiding mechanism for guiding the yarn. The yarn guiding mechanism includes a frame and at least two guide wheels rotatably mounted on the frame. The frame is also provided with a rotary power source for driving one of the guide wheels to alternately rotate forward and backward. The yarn guiding mechanism also includes a flexible rotating component that drives each guide wheel. The flexible rotating component is a belt or chain, and the corresponding guide wheel is a pulley or sprocket. Under the action of two of the guide wheels, the flexible rotating component forms a straight segment that is parallel and spaced apart from the yarn bobbin. A yarn guiding element is fixedly mounted on the straight segment for guiding the yarn. The yarn guiding element is used to perform reciprocating linear motion between two adjacent guide wheels under the drive of the rotary power source.

[0016] Furthermore, at least three guide wheels are provided, with the guide wheel driven by the rotational power source being the driving wheel, and the guide wheels at both ends of the straight segment being driven wheels.

[0017] Furthermore, the guide wheels at both ends of the straight segment have the same diameter, and both are smaller than the diameter of the driving wheel.

[0018] Furthermore, the frame includes a mounting plate, guide wheels are disposed on one side of the mounting plate, and a rotational power source is fixedly disposed on the side of the mounting plate away from the guide wheels.

[0019] Furthermore, the rotation axis of the rotary power source extends in the vertical direction.

[0020] Furthermore, the guide wire component includes a guide wire housing for being fixedly mounted on the flexible rotating component and a rabbit wire head that is separately mounted from the guide wire housing.

[0021] Furthermore, one of the guide wire housing and the rabbit wire head is provided with a slot, and the other is provided with a locking post that mates with the slot. The rabbit wire head and the guide wire housing are interference-fitted through the slot and the locking post.

[0022] Furthermore, three guide wheels are provided, the distance from the axis of the driving wheel to the axes of the two driven wheels is the same, and the flexible rotating component is an isosceles triangle.

[0023] Furthermore, the yarn winding device also includes a pressure roller for pressing the yarn on the yarn spool during winding, the straight section being disposed above the pressure roller.

[0024] The beneficial effects of the yarn winding device in this utility model are as follows: This utility model improves upon existing yarn winding devices by setting up a yarn bobbin fixing frame and a yarn guiding mechanism to facilitate yarn winding. At least two guide wheels and a flexible rotating component facilitate winding the flexible rotating component around the outer circumference of the guide wheels. One of the guide wheels is connected to a rotary power source, which drives the guide wheel to alternately rotate forward and backward, facilitating the reciprocating rotation of the flexible rotating component. Under the action of two guide wheels, the flexible rotating component forms a straight segment parallel and spaced with the yarn bobbin. A yarn guide is fixedly installed on this straight segment to guide the yarn. Thus, when the rotary power source drives the guide wheels to alternately rotate forward and backward, it drives the flexible rotating component to reciprocate, thereby causing the yarn guide to reciprocate linearly between adjacent guide wheels, achieving the guiding effect on the yarn. Since the flexible rotating component is a belt or chain, and the corresponding guide wheel is a pulley or sprocket, compared to a screw and nut mechanism, no precision machining is required, reducing processing costs. Meanwhile, belts or chains can operate at higher speeds than screw and nut mechanisms, making it easier to match the high-speed winding of the wire and improve production efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the wire winding device of this utility model; Figure 2 This is a schematic diagram of the wire guiding mechanism from one perspective in an embodiment of the wire winding device of this utility model; Figure 3 for Figure 2 Enlarged view of the guide wire component; Figure 4 This is an exploded view of the guide wire component in an embodiment of the wire winding device of this utility model; Figure 5 This is a schematic diagram of the guide mechanism from another perspective in an embodiment of the wire winding device of this utility model.

[0026] In the diagram: 1. Mounting plate; 2. Motor; 31. Drive wheel; 32. Driven wheel; 4. Belt; 5. Guide wire component; 51. Guide wire housing; 511. Clamping post; 512. Mounting groove; 52. Rabbit wire head; 521. Clamping groove; 6. Pressure roller; 7. Wire spool fixing frame; 8. Wire spool; 9. Wire. Detailed Implementation

[0027] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0028] In this invention, the wire guide is fixed on a flexible rotating component, allowing the wire guide to reciprocate linearly with the flexible rotating component. The flexible rotating component is a belt or chain, and the corresponding guide wheel is a pulley or sprocket. Compared with a screw and nut mechanism, it does not require precision machining, which can reduce processing costs. At the same time, it can have a higher operating speed, making it easier to match the high-speed winding of the wire and improve production efficiency.

[0029] In an embodiment of the yarn winding device of this utility model: like Figure 1 As shown, in this embodiment, the yarn winding device includes a yarn spool fixing frame 7 for fixing the yarn spool 8 and a yarn guiding mechanism for guiding the yarn 9. The yarn spool fixing frame 7 includes side plates arranged at both ends of the yarn spool 8 and clamping members for clamping the yarn spool 8. The yarn spool 8 can be fixedly installed by the clamping members on the two side plates.

[0030] Combination Figure 1 , Figure 2 and Figure 5 As shown, the wire guiding mechanism includes a frame, which includes a horizontally arranged mounting plate 1. Three guide wheels are rotatably mounted on the upper side of the mounting plate 1. Flexible rotating parts are driven around the outer periphery of the guide wheels. One of the guide wheels is driven by a rotational power source to form a driving wheel 31, and the other two guide wheels form driven wheels 32. The rotational power source is a motor 2, which is fixedly mounted below the mounting plate 1. The output shaft of the motor 2 extends upward through the mounting plate 1 and enters the driving wheel 31 to drive the driving wheel 31 to alternately rotate forward and backward, realizing the reciprocating rotation of the flexible rotating parts. In use, the wire spool fixing frame 7 is used to fix the wire spool 8, which is used for winding the wire 9. The wire guiding mechanism is used to guide the wire 9 to be wound on the wire spool 8, so that the wire 9 is evenly wound on the wire spool 8 along the axial direction of the wire spool 8.

[0031] In this embodiment, the flexible rotating component is a belt 4, and the corresponding guide wheel is a pulley. Of course, in other embodiments, the flexible rotating component can also be a chain, in which case the guide wheel is adapted to be a sprocket matching the chain. Regardless of whether the flexible rotating component is a belt or a chain, compared to the screw-nut mechanism in the prior art, no precision machining is required, reducing processing costs. Simultaneously, belts or chains can have higher operating speeds than screw-nut mechanisms, making it easier to match high-speed winding of the thread and improving production efficiency. Of course, in other embodiments, the rotary power source can also be a hydraulic motor. Alternatively, in other embodiments, the rotary power source can be connected to the drive wheel 31 via a chain, belt, or gear transmission, indirectly driving the drive wheel 31 to rotate, and the rotary power source and the guide wheel can be arranged on the same side of the mounting plate. Alternatively, in other embodiments, there can be four or other numbers of guide wheels. Alternatively, in other embodiments, there can be two guide wheels, one as the drive wheel and the other as the driven wheel. Alternatively, in other embodiments, the mounting plate can be arranged vertically, in which case the rotation axis of the motor extends horizontally.

[0032] The two driven pulleys 32 in the guide rollers are kept at the same distance from the axis of the yarn drum 8. The belt 4 is wound around the outside of the three guide rollers and drives the guide rollers, so that the straight section of the belt 4 between the two driven pulleys 32 is parallel to the axis of the yarn drum 8. A guide wire 5 is fixedly installed on the straight section. The guide wire 5 moves back and forth along the length of the yarn drum 8 to make the yarn 9 evenly wound on the yarn drum 8. Therefore, the distance between the two driven pulleys 32 is greater than the length of the yarn drum 8, so that the guide wire 5 can move to any position in the axial direction of the yarn drum 8, which facilitates the winding of the yarn.

[0033] The two driven pulleys 32 and the driving pulley 31 are arranged in a triangle, with the two driven pulleys 32 having the same diameter and the driving pulley 31 having a larger diameter than the two driven pulleys 32. This allows the driving pulley 31 to rotate at a slower speed relative to the driven pulleys 32 during motor 2 rotation, reducing the required motor speed. Simultaneously, the distances from the axis of the driving pulley 31 to the axes of the two driven pulleys 32 are the same, and the belt 4 is an isosceles triangle, resulting in a more balanced force on the driving pulley 31 during forward and reverse rotation. Alternatively, in other embodiments, the diameters of the three guide pulleys can be set to be the same, in which case the motor speed needs to be maximized. Or, in other embodiments, the distances from the axis of the driving pulley to the axes of the two driven pulleys are not equal.

[0034] The yarn winding device also includes a pressure roller 6 for pressing the yarn 9 on the yarn spool 8 during winding. The pressure roller 6 is arranged parallel to and spaced apart from the yarn spool 8 during use. A mounting plate 1 is arranged above and covers the pressure roller 6. The pressure roller 6 is rotatably mounted on two parallel side plates of the frame. The motor 2 is arranged at the same height as the pressure roller 6. At this time, the straight section of the belt 4 between the two driven pulleys 32 is also located above the pressure roller 6. Alternatively, in other embodiments, the pressure roller can be mounted using a separate bracket and can press against the top of the yarn, in which case the pressure roller is located above the yarn guide.

[0035] like Figure 3 and Figure 4 As shown, the wire guide 5 includes a wire guide housing 51 for fixedly mounted on the belt 4 and a rabbit wire head 52 separately disposed from the wire guide housing 51. The rabbit wire head 52 is a ceramic part, which can reduce the friction with the wire. The wire guide housing 51 is a plastic part, which facilitates fixed connection with the belt 4. Specifically, in this embodiment, the wire guide housing 51 is heat-fused to the belt 4. Of course, in other embodiments, it can also be fixed together by bolts. Although the rabbit wire head 52 is a ceramic part, which reduces the friction with the wire, it also makes the rabbit wire head 52 easy to damage. Therefore, the rabbit wire head 52 and the wire guide housing 51 are detachably connected together to facilitate replacement of the rabbit wire head 52.

[0036] Specifically, the guide wire housing 51 is provided with a vertically penetrating mounting groove 512. The rabbit wire head 52 is nested inside the mounting groove 512. A retaining post 511, which is semi-cylindrical and extends along the depth of the mounting groove 512, is provided on the opposite sides of the mounting groove 512. The rabbit wire head 52 has a retaining groove 521 on its opposite sides that mates with the retaining post 511. The retaining groove 521 penetrates the side of the rabbit wire head 52. When installing the rabbit wire head 52, it is inserted from the front opening of the mounting groove 512, and the rabbit wire head 52 and the guide wire housing 51 are press-fitted through the retaining groove 521 and the retaining post 511. Alternatively, in other embodiments, a retaining post can be provided on the rabbit wire head, and a retaining groove can be provided on the guide wire housing. Or, in other embodiments, the rabbit wire head can be fixed to the guide wire housing with bolts. In other embodiments, the guide wire may consist only of a rabbit wire tip, which is directly fixed to the flexible rotating part by screws.

[0037] An embodiment of the wire guide mechanism in this utility model: The wire guiding mechanism in this embodiment has the same structure as the wire guiding mechanism in the embodiment of the wire winding device described above, and will not be described again here.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A wire guide mechanism, characterized in that: The device includes a frame and at least two guide wheels rotatably mounted on the frame. The frame is also equipped with a rotary power source for driving one of the guide wheels to alternately rotate forward and backward. The wire guiding mechanism also includes a flexible rotating component that drives each guide wheel. The flexible rotating component is a belt or chain, and the corresponding guide wheel is a pulley or sprocket. Under the action of two of the guide wheels, the flexible rotating component forms a straight section that is arranged parallel to and spaced apart from the wire spool. A wire guide is fixedly mounted on the straight section to guide the wire. The wire guide is used to perform reciprocating linear motion between two adjacent guide wheels under the drive of the rotary power source.

2. The guide wire mechanism according to claim 1, characterized in that: The guide wheel is provided with at least three, the guide wheel driven by the rotational power source is the driving wheel, and the guide wheels at both ends of the straight segment are driven wheels.

3. The guide wire mechanism according to claim 2, characterized in that: The guide wheels at both ends of the straight segment have the same diameter, and both are smaller than the diameter of the driving wheel.

4. The guide wire mechanism according to any one of claims 1-3, characterized in that: The frame includes a mounting plate, guide wheels are disposed on one side of the mounting plate, and a rotational power source is fixedly disposed on the side of the mounting plate away from the guide wheels.

5. The guide wire mechanism according to any one of claims 1-3, characterized in that: The rotation axis of the rotary power source extends in the vertical direction.

6. The guide wire mechanism according to any one of claims 1-3, characterized in that: The guide wire component includes a guide wire housing for being fixedly mounted on a flexible rotating component and a rabbit wire head that is separately mounted from the guide wire housing.

7. The guide wire mechanism according to claim 6, characterized in that: The guide wire housing and the rabbit wire head are provided with a slot on one of them and a locking post on the other. The rabbit wire head and the guide wire housing are interference-fitted through the slot and the locking post.

8. The guide wire mechanism according to claim 2 or 3, characterized in that: The guide wheel is provided in three parts, and the distance from the axis of the driving wheel to the axes of the two driven wheels is the same. The flexible rotating part is in the shape of an isosceles triangle.

9. A yarn winding device, comprising a yarn bobbin fixing bracket for fixing a yarn bobbin and a yarn guiding mechanism for guiding the yarn, characterized in that: The guide wire mechanism is the same as that described in any one of claims 1-8.

10. The yarn winding device according to claim 9, characterized in that: The yarn winding device also includes a pressure roller for pressing the yarn on the yarn spool during winding, the straight section being disposed above the pressure roller.

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