Pitch-based fiber yarn releasing device

Abstract

The utility model discloses an asphalt-based fiber yarn releasing device, which relates to the technical field of textile and comprises a frame, and a drum frame structure and a fiber guide hole are mounted on the frame. The axis of the cylinder frame structure is horizontally arranged in the left-right direction, and a yarn guide device and a reciprocating swing displacement device are fixed to the rack. The yarn guide device is arranged on one side behind the cylinder frame structure; comprising a base and a yarn guide rod installed on the base, and yarn penetrates into a fiber guide hole after being limited by the yarn guide rod; the yarn guide device or the bobbin frame structure is installed on the machine frame in a left-right sliding mode, the reciprocating swing displacement device drives the yarn guide device or the bobbin frame structure to move left and right, and the yarn guide device is always aligned with the yarn outlet position of the yarn bobbin. The reciprocating swing displacement device drives the bobbin frame structure or the yarn guide device to move left and right, the yarn guide device is always aligned with the yarn outlet position of the yarn bobbin, and therefore the phenomenon that the yarn outlet position of the yarn bobbin has a bending angle, the yarn sliding phenomenon is caused, and the risk of yarn breakage is caused is avoided.

Description

Technical Field

[0001] This utility model relates to the field of textile technology, and in particular to a pitch-based fiber yarn feeding device. Background Technology

[0002] Pitch-based fibers, with their unique physical and chemical properties, have wide applications in textiles, construction, and other industries. However, during the unwinding process, these fibers are particularly susceptible to bending and friction, increasing the risk of breakage. Traditional unwinding devices typically use fixed bobbins and fiber guides. The yarn undergoes a certain bending angle during unwinding, which is a significant problem for fragile pitch-based fibers. Especially when the bobbin is wide and the yarn is wound sequentially, the bending angle between the yarn and the fiber guide causes the unwinding position to shift or slip, resulting in yarn slippage. Slippage increases friction between the yarns, further increasing the likelihood of breakage. Utility Model Content

[0003] The purpose of this invention is to provide a pitch-based fiber yarn feeding device that dynamically adjusts the yarn feeding path to reduce the bending angle of the yarn during the feeding process, avoids yarn slippage, and thus reduces the risk of yarn breakage.

[0004] To achieve the above objectives, this utility model provides an asphalt-based fiber yarn feeding device, including a frame, on which a bobbin structure for fixing the yarn bobbin and a fiber guide eye disposed behind the bobbin structure for guiding the yarn are mounted; the axis of the bobbin structure is horizontally arranged and in a left-right direction, and a yarn guiding device and a reciprocating swing displacement device are fixed on the frame; the yarn guiding device is disposed on one side behind the bobbin structure and between the bobbin structure and the fiber guide eye; it includes a base and a yarn guiding rod mounted on the base for limiting the yarn, and the yarn passes through the fiber guide eye after being limited by the yarn guiding rod; the yarn guiding device or the bobbin structure is slidably mounted on the frame left and right, and the reciprocating swing displacement device drives the yarn guiding device or the bobbin structure to move left and right, and the yarn guiding device is always aligned with the yarn outlet position of the bobbin.

[0005] With the above structure, by setting a yarn guiding device between the bobbin structure and the fiber guide eye, and then driving the bobbin structure or the yarn guiding device to move left and right by a reciprocating oscillating displacement device, the yarn guiding device is always aligned with the yarn exit position of the bobbin, thereby avoiding the bending angle of the yarn exit position of the bobbin, which would cause yarn slippage and thus lead to the risk of yarn breakage.

[0006] Preferably, the reciprocating oscillating displacement device includes a reciprocating screw rotatably mounted on the frame, a slider mounted on the reciprocating screw, and a drive motor for driving the reciprocating screw to rotate; the slider is fixed to the yarn guide device or the bobbin structure. This configuration enables precise and continuous position adjustment.

[0007] Preferably, the yarn guiding device is slidably mounted on the frame, and the bobbin structure is fixedly mounted on the frame; the reciprocating oscillating displacement device drives the yarn guiding device to move left and right following the yarn exit position of the bobbin. This configuration reduces the operating pressure on the reciprocating oscillating displacement device and lowers production costs.

[0008] Preferably, the bobbin structure is slidably mounted on the frame, and the yarn guide device is fixedly mounted on the frame. A reciprocating oscillating displacement device drives the bobbin structure to move left and right, ensuring that the yarn exit position of the bobbin is always aligned with the limiting area of ​​the yarn guide rod. This configuration aligns the limiting area of ​​the yarn guide rod with the fiber guide eye, and the reciprocating oscillating displacement device drives the bobbin structure to move left and right, ensuring that the yarn exit position of the bobbin is always aligned with the limiting area of ​​the yarn guide rod. All three are always in a straight line, eliminating any bending angle and not limiting the distance between the yarn guide device and the fiber guide eye.

[0009] Preferably, the limiting area of ​​the yarn guide rod is aligned with the fiber guide eye. This arrangement avoids bending angles in the yarn during transmission between the limiting area and the fiber guide eye, which could cause friction between the yarn and the yarn guide rod or fiber guide eye, leading to the risk of yarn breakage.

[0010] Preferably, the yarn guide rod includes a horizontally extending yarn guide rod and two vertically extending yarn guide rods; the horizontal and vertical yarn guide rods form a groove-shaped limiting area with an open top; the contact points between the horizontal and vertical yarn guide rods and the yarn are both arc surfaces. This arrangement reduces friction between the yarn and the yarn guide rods.

[0011] Preferably, the vertical guide rod is hinged to the horizontal guide rod. At the bottom of its hinge point, the vertical guide rod has a bottom limiter that restricts its rotation to the outside of a limited area. A contact sensor is installed on the bottom limiter. When the vertical guide rod is in a vertical position, its bottom rests against the contact sensor, and the contact sensor signal is connected to a reciprocating oscillating displacement device. The vertical guide rod also has an elastic component that restricts its rotation. The pressure of the yarn can overcome the elastic force of the elastic component, causing the vertical guide rod to rotate to a certain extent, and its bottom disengages from the contact sensor. This design allows adjustment of the yarn exit position based on yarn offset, ensuring straight yarn delivery and avoiding complete angular deviations.

[0012] Preferably, the length above the hinge point of the vertical guide rod is greater than its length below. This arrangement utilizes the lever principle, allowing the yarn to compress the vertical guide rod with a smaller force, thereby improving the sensitivity of the device and preventing yarn breakage.

[0013] Preferably, the elastic component includes a sleeve and a telescopic shaft slidably installed within the sleeve. A spring is provided between the telescopic shaft and the sleeve to drive the telescopic shaft to extend out of the sleeve. An arc-shaped plate is fixed to the side of the telescopic shaft extending out of the sleeve, and the vertical guide rod is engaged in the arc-shaped plate. This arrangement ensures that the elastic component accurately acts on the vertical guide rod, preventing it from coming loose.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] This invention relates to an asphalt-based fiber yarn feeding device, which solves the technical problem in the prior art where the bending angle between the yarn and the fiber guide causes the yarn feeding position to shift or slide, resulting in yarn slippage. Yarn slippage increases friction between yarns, thereby increasing the possibility of yarn breakage. This invention reduces the bending angle of the yarn during the feeding process by dynamically adjusting the yarn feeding path, thus avoiding yarn slippage and reducing the risk of yarn breakage. Attached Figure Description

[0016] Figure 1 This is a side view of an asphalt-based fiber yarn feeding device according to this utility model;

[0017] Figure 2 yes Figure 1 The front view;

[0018] Figure 3 This is a schematic diagram of the first type of reciprocating oscillating displacement device driving the yarn guiding device to move left and right.

[0019] Figure 4 This is a schematic diagram of the second type of reciprocating swing displacement device driving the cylindrical frame structure to move left and right;

[0020] Figure 5 This is a schematic diagram of the improved structure of the yarn guide rod under the second structure.

[0021] In the diagram, 1 is the frame, 2 is the yarn bobbin, 3 is the bobbin frame structure, 4 is the fiber guide eye, 5 is the yarn guiding device, 51 is the base, 52 is the yarn guide rod, 521 is the horizontal yarn guide rod, 522 is the vertical yarn guide rod, 6 is the reciprocating oscillating displacement device, 61 is the reciprocating lead screw, 62 is the slider, 63 is the drive motor, 7 is the yarn, 81 is the bottom limit, 82 is the contact sensor, and 83 is the elastic component. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] The orientations mentioned in this specification are based on the orientation of the asphalt-based fiber yarn feeding device of this utility model during normal operation, and do not limit its orientation during storage and transportation. They only represent relative positional relationships and do not represent absolute positional relationships.

[0024] like Figure 1 and Figure 2 As shown, an asphalt-based fiber yarn feeding device includes a frame 1, on which a bobbin structure 3 for fixing a yarn bobbin 2 and a fiber guide eye 4 disposed behind the bobbin structure 3 for guiding the yarn are mounted. The axis of the bobbin structure 3 is horizontally arranged and oriented left-right. A yarn guiding device 5 and a reciprocating oscillating displacement device 6 are fixed on the frame 1. The bobbin structure 3 includes a support and an expansion shaft rotatably mounted on the support. The yarn bobbin 2 is clamped by being fitted onto the expansion shaft. A magnetic powder tension controller is provided at one end of the expansion shaft, and the magnetic powder tension controller, in conjunction with a tension sensor, tensions the yarn 7.

[0025] The yarn guiding device 5 is located on one side behind the bobbin structure 3, between the bobbin structure 3 and the fiber guide eye 4. It includes a base 51 and a yarn guiding rod 52 mounted on the base 51 to limit the movement of the yarn 7. After being limited by the yarn guiding rod 52, the yarn 7 passes through the fiber guide eye 4. The yarn guiding device 5 or the bobbin structure 3 is slidably mounted on the frame 1. A reciprocating oscillating displacement device 6 drives the yarn guiding device 5 or the bobbin structure 3 to move left and right, ensuring that the yarn guiding device 5 is always aligned with the yarn exit position of the bobbin 2.

[0026] The reciprocating oscillating displacement device 6 can use an electric cylinder or a stepper motor in conjunction with a lead screw and slider 62 to drive the yarn guiding device 5 to move left and right. The controller lead and moving speed are adjusted according to the lead of the yarn bobbin 2. In this embodiment, in order to achieve continuous and precise left and right movement, the reciprocating oscillating displacement device 6 includes a reciprocating lead screw 61 rotatably mounted on the frame 1, a slider 62 mounted on the reciprocating lead screw 61, and a drive motor 63 that drives the reciprocating lead screw 61 to rotate. The structure of the reciprocating lead screw 61 can refer to the structure in the prior art, such as a novel reciprocating lead screw disclosed in Chinese Patent CN 212804118 U. The slider 62 is fixed on the yarn guiding device 5 or the bobbin structure 3 to achieve precise and continuous position adjustment.

[0027] According to the embodiments of this utility model, there are two possible structural configurations:

[0028] The first type:

[0029] like Figure 3 As shown, the yarn guide device 5 is slidably mounted on the frame 1, and the bobbin structure 3 is fixedly mounted on the frame 1. In this case, the reciprocating oscillating displacement device 6 drives the yarn guide device 5 to move left and right following the yarn exit position of the bobbin 2, so as to ensure that the yarn guide device 5 is always aligned with the yarn exit direction of the yarn 7, thereby avoiding the yarn 7 from bending at an angle during the yarn release process.

[0030] The second type:

[0031] like Figure 4As shown, the bobbin structure 3 is slidably mounted on the frame 1, and the yarn guide device 5 is fixedly mounted on the frame 1. In this case, the reciprocating oscillating displacement device 6 drives the bobbin structure 3 to move left and right, so that the yarn outlet position of the yarn bobbin 2 is always aligned with the limiting area of ​​the yarn guide rod 52, thereby avoiding the yarn 7 from bending at an angle during the yarn feeding process.

[0032] The advantage of the first structure is that the yarn guide device 5 is simple in structure and lightweight. Therefore, when the reciprocating oscillating displacement device 6 drives the yarn guide device 5 to move left and right following the yarn exit position of the yarn cylinder 2, the driving force is smaller, thereby reducing the pressure on the drive motor 63 and relatively reducing costs. However, this structure still has a certain bending angle between the yarn guide device 5 and the fiber guide eye 4. Although this angle can be reduced by increasing the distance between the two, a certain risk of yarn breakage is still unavoidable.

[0033] The advantage of the second structure is that the limiting area of ​​the yarn guide rod 52 can be aligned with the fiber guide eye 4. The reciprocating oscillating displacement device 6 drives the bobbin structure 3 to move left and right, so that the yarn exit position of the yarn bobbin 2 is always aligned with the limiting area of ​​the yarn guide rod 52. The three are always on a straight line, so there is no bending angle and no restriction on the distance between the yarn guide device 5 and the fiber guide eye 4.

[0034] Furthermore, the design of the yarn guide rod 52 has been optimized to reduce friction between the yarn 7 and the yarn guide rod 52. The yarn guide rod 52 includes a horizontally extending yarn guide rod 521 and two vertically extending yarn guide rods 522, which together form a groove-shaped limiting area with an open top. The contact points between the horizontal yarn guide rod 521 and the vertical yarn guide rod 522 and the yarn 7 are both arc surfaces to reduce friction and damage to the yarn 7.

[0035] As an optimization scheme for the second structure mentioned above:

[0036] Because there may be some differences in yarn compression or tension during the winding of yarn cylinder 2, the yarn exit position of yarn cylinder 2 may still not be aligned with the limiting area of ​​yarn guide rod 52. Once a deviation occurs, the deviation will accumulate and may still produce a large bending angle. To avoid this problem, the following improvements have been made.

[0037] like Figure 5As shown, the vertical guide rod 522 is hinged to the horizontal guide rod 521. At the bottom of its hinge point, the vertical guide rod 522 has a bottom limiter 81 that restricts its rotation to the outside of the limiting area. A contact sensor 82 is installed on the bottom limiter 81. When the vertical guide rod 522 is in a vertical position, its bottom abuts against the contact sensor 82, which can be a photoelectric sensor or a pressure sensor. The contact sensor 82 is connected to the reciprocating oscillating displacement device 6. The vertical guide rod 522 also has an elastic component 83 that restricts its rotation. The pressure of the yarn 7 can overcome the elastic force of the elastic component 83, causing the vertical guide rod 522 to rotate to a certain extent, and its bottom disengages from the contact sensor 82.

[0038] When yarn 7 deviates, it touches the vertical guide rod 522 on that side. The vertical guide rod 522 overcomes the elastic force of the elastic component 83 and rotates outward from the limiting area. At this time, the bottom of the vertical guide rod 522 disengages from the contact sensor 82. The contact sensor 82 transmits a signal to the reciprocating oscillating displacement device 6, which controls the moving speed of the yarn bobbin 2 to adjust accordingly, thereby returning it to the center of the limiting area, thus achieving automatic correction. When yarn 7 disengages from the vertical guide rod 522, the vertical guide rod 522 resets under the action of the elastic component 83, and its bottom rests against the contact sensor 82. To avoid accidental disengagement caused by vibration, the signal to the reciprocating oscillating displacement device 6 is only transmitted two seconds after the bottom of the vertical guide rod 522 disengages from the contact sensor 82 to adjust the position of the yarn bobbin 2.

[0039] Furthermore, since the length above the hinge point of the vertical guide rod 522 is greater than its length below, the yarn 7 can be used to compress the vertical guide rod 522 to rotate with a smaller force, thereby improving the sensitivity of the device and preventing the yarn 7 from breaking.

[0040] The elastic component 83 can be a torsion spring or other elastic components. In this embodiment, it includes a sleeve and a telescopic shaft that is slidably installed in the sleeve. A spring is provided between the telescopic shaft and the sleeve to drive the telescopic shaft to extend out of the sleeve. An arc-shaped plate is fixed on the side of the telescopic shaft that extends out of the sleeve, and the vertical guide rod 522 is stuck in the arc-shaped plate.

[0041] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An asphalt-based fiber yarn feeding device comprising a frame, a bobbin holder structure for fixing a yarn bobbin and a fiber guide eye for guiding the yarn disposed behind the bobbin holder structure mounted on the frame; the axis of the bobbin holder structure is disposed horizontally and in left-right direction, characterized in that: The frame is fixed with a yarn guide device and a reciprocating swing displacement device; The yarn guide device is arranged on the rear side of the reel structure and between the reel structure and the fiber guide eye; it comprises a base and a yarn guide rod installed on the base for limiting the yarn; the yarn passes through the yarn guide rod and then enters the fiber guide eye; The yarn guide device or the reel structure is slidably installed on the frame, and the reciprocating swing displacement device drives the yarn guide device or the reel structure to move left and right, and the yarn guide device is always aligned with the yarn outlet position of the yarn reel.

2. An asphalt-based fiber yarn laying device according to claim 1, characterized in that: The reciprocating swing displacement device comprises a reciprocating screw rod rotatably installed on the frame, a sliding block cooperatively installed on the reciprocating screw rod, and a driving motor for driving the reciprocating screw rod to rotate; the sliding block is fixed on the yarn guide device or the reel structure.

3. An asphalt-based fiber yarn laying device according to claim 2, characterized in that: The yarn guide device is slidably installed on the frame, and the reel structure is fixedly installed on the frame; the reciprocating swing displacement device drives the yarn guide device to move left and right following the yarn outlet position of the yarn reel.

4. An asphalt-based fiber yarn laying device according to claim 3, characterized in that: The reel structure is slidably installed on the frame, and the yarn guide device is fixedly installed on the frame; the reciprocating swing displacement device drives the reel structure to move left and right, so that the yarn outlet position of the yarn reel is always aligned with the limiting area of the yarn guide rod.

5. An asphalt-based fiber yarn laying device according to claim 4, characterized in that: The limiting area of the yarn guide rod is aligned with the fiber guide eye.

6. An asphalt-based fiber yarn laying device according to claim 4, characterized in that: The yarn guide rod comprises a left-right extending horizontal yarn guide rod and two up-down extending vertical yarn guide rods; the horizontal yarn guide rod and the vertical yarn guide rods form a slot-shaped limiting area with an open upper end; the contact positions of the horizontal yarn guide rod and the vertical yarn guide rods with the yarn are both circular arc surfaces.

7. An asphalt-based fiber yarn laying device according to claim 6, characterized in that: The vertical yarn guide rod is hinged to the horizontal yarn guide rod; a bottom limit is arranged at the bottom of the hinging point of the vertical yarn guide rod to limit the rotation of the vertical yarn guide rod to the outside of the limiting area; a contact sensor is arranged on the bottom limit; when the vertical yarn guide rod is in a vertical state, the bottom of the vertical yarn guide rod abuts against the contact sensor, and the contact sensor is signal connected to the reciprocating swing displacement device; an elastic component is further arranged on the vertical yarn guide rod to limit the rotation of the vertical yarn guide rod; the pressure of the yarn can overcome the elastic force of the elastic component to make the vertical yarn guide rod rotate and its bottom separate from the contact sensor.

8. An asphalt-based fiber yarn laying device according to claim 7, characterized in that: The length above the hinging point of the vertical yarn guide rod is greater than the length below the hinging point.

9. An asphalt-based fiber yarn laying device according to claim 7, characterized in that: The elastic component comprises a sleeve and a telescopic shaft slidably installed in the sleeve; a spring is arranged between the telescopic shaft and the sleeve to drive the telescopic shaft to extend out of the sleeve; an arc-shaped plate is fixed on one side of the telescopic shaft extending out of the sleeve, and the vertical yarn guide rod is clamped in the arc-shaped plate.

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