Creel yarn guiding device for composite material fibers and creel yarn guiding technology of creel yarn guiding device

Abstract

The invention discloses a creel yarn guiding device for composite fibers and a creel yarn guiding technology of the creel yarn guiding device, and relates to the field of composite fiber yarn guiding, the creel yarn guiding device comprises a bottom plate, a fixing rod and a fixing frame, the fixing rod is fixed to the upper end face of the bottom plate, the fixing frame is fixed to the upper end face of the bottom plate, and the fixing rod is fixed to a mounting frame through a bolt; a yarn guide mechanism is installed on the installation frame, a positioning mechanism is connected to the fixing frame through a bearing, and a bobbin is installed on the positioning mechanism. According to the creel yarn guiding device for the composite material fiber and the creel yarn guiding technology of the creel yarn guiding device, the elastic driving mechanism is adopted, when the installation shaft is stuck, acting force is provided for rotation of the installation shaft through the acting force of yarn tightening, and therefore the installation shaft can automatically restore normal rotation, and the problem of yarn breakage is avoided; when yarn is released, the bobbin can be limited, the bobbin is prevented from being separated from the mounting shaft, and stable operation of the device is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of composite fiber yarn drawing, in particular to a composite fiber yarn drawing device and a yarn drawing process thereof. Background Art

[0002] Composite fiber is a man-made fiber composed of multiple component fibers, such as glass fiber, carbon fiber and polymer fiber. It is widely used in the fields of construction, aerospace, automobile, shipbuilding and electronics. In the production of composite fiber, the fiber is fixed on the yarn drum, and the yarn drum is rotated and released by the pulling force of the needle hook, and then the fiber is led out through the yarn eye for subsequent weaving processing; However, in actual use, when the rotation of the yarn bobbin mounting shaft is stuck (for example, the bearing is rusted or foreign matter is attached, making it difficult for the mounting shaft to rotate normally and stably), it is necessary to manually rotate the mounting shaft for several turns to make the foreign matter fall off so that the mounting shaft can resume normal rotation. Moreover, when the rotation of the yarn bobbin mounting shaft is stuck, the tension of the needle hook always exists, which will cause the yarn to break, thereby affecting the normal operation of the device. Therefore, in view of the above problems, a yarn drawing device for a composite fiber creel and a yarn drawing process of the creel are designed to better meet the actual use needs. Summary of the invention

[0003] The object of the present invention is to provide a creel yarn drawing device for composite fiber and a creel yarn drawing process thereof, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a yarn drawing device for a composite fiber yarn rack, comprising a base plate, a fixed rod and a fixed frame, wherein the upper end surface of the base plate is fixed with a fixed rod, the upper end surface of the base plate is fixed with a fixed frame, the fixed rod is fixed to the mounting frame by bolts, a yarn guide mechanism is installed on the mounting frame, a positioning mechanism is connected to a bearing on the fixed frame, a bobbin is installed on the positioning mechanism, a driving mechanism is arranged on the lower side of the positioning mechanism, and the driving mechanism comprises a movable frame, a yarn guide wheel, a guide rod, a fixed plate, a third spring, a convex rack, a composite wheel, a connecting rod, a fixed wheel, a ratchet and a limit block, the bearing on the movable frame A yarn guide wheel is connected, a guide rod is fixed to the lower end of the movable frame, the guide rod and the fixed plate are slidably connected, the fixed plate is fixed on the fixed frame, a third spring is fixed between the fixed plate and the guide rod, a convex rack is fixed on the movable frame, the convex rack cooperates with the composite wheel to realize transmission, and the outer side of the composite wheel is a gear structure, the inner side of the composite wheel is a ratchet structure, a connecting rod is fixed on the composite wheel, the connecting rod and the fixed wheel are slidably connected, the fixed wheel and the mounting shaft are fixedly connected, a pawl is rotatably connected to the fixed wheel through a torsion spring, the pawl contacts with a limit block to realize positioning, and the limit block is fixed in the fixed wheel.

[0005] Preferably, the yarn guiding mechanism includes a movable block, a yarn guide ring, a positioning rod, a partition, a vertical rod, a first spring, a mounting plate and a ball bearing. The movable block and the mounting frame are slidably connected, and a yarn guide ring is fixed to the lower end of the movable block, and a positioning rod is fixed to the lower end of the yarn guide ring. At the same time, the positioning rod and the circular hole on the mounting frame are nested to achieve positioning. Through the above structure, the position of the yarn guide ring can be adjusted and fixed, thereby achieving the distance adjustment between the two yarn guide rings, so as to better meet actual usage needs.

[0006] Preferably, a partition is fixed in the movable block, and the partition is slidably connected to the vertical rod, and a first spring is fixed between the partition and the vertical rod. The sliding action between the partition and the vertical rod and the elastic action of the first spring can provide a basic guarantee for the automatic resetting of the vertical rod.

[0007] Preferably, a mounting plate is fixed on the vertical rod, and a ball is installed on the mounting plate, and the ball contacts the mounting frame and can roll. The rolling action between the ball and the mounting frame facilitates the movement of the movable block, thereby providing basic guarantee for the position adjustment of the yarn guide ring.

[0008] Preferably, a support plate is fixed on the fixed frame, and a yarn guide hole is opened on the support plate, and the support plate is located above the movable frame, and the yarn guiding and limiting function can be achieved through the function of the yarn guide hole.

[0009] Preferably, the positioning mechanism includes an installation shaft, a limit plate, an elastic strip, a sliding rod, a second spring and a gravity ball. The installation shaft bearing is connected to a fixed frame, and the installation shaft and the wire drum are nested. A limit plate is fixed on the installation shaft, and the limit plate contacts with the wire drum to achieve positioning. The limiting effect of the wire drum can be achieved through the action of the limit plate.

[0010] Preferably, elastic strips are fixed at equal angles on the outside of the installation shaft, and the elastic strips are fixed by contacting the inner wall of the wire barrel. The elastic fastening effect of the elastic strips can ensure the stability of the installation of the installation shaft and the wire barrel.

[0011] Preferably, the front end of the installation shaft is slidably connected with a slide rod at an equal angle, and a second spring is fixed between the slide rod and the installation shaft. Through the elastic action of the second spring, a basic force can be provided for the automatic reset of the slide rod to ensure the normal operation of the device.

[0012] Preferably, a gravity ball is also fixed on the installation shaft, and the gravity ball is located at the end of the installation shaft away from the fixed frame. Through the action of the gravity ball, the sliding rod can move under the centrifugal force of the gravity ball, thereby realizing the outer side limiting effect of the wire drum and preventing the wire drum from detaching from the installation shaft.

[0013] A composite fiber creel yarn drawing process, the specific steps are as follows: Step 1: Adjust the position of the yarn guide ring by sliding between the movable block and the mounting frame, and achieve positioning by nesting the positioning rod with the circular hole on the mounting frame; Step 2: Install the bobbin on the installation shaft, cooperate with the elastic effect of the elastic strip to achieve the positioning and supporting function of the bobbin. When the bobbin rotates to release the wire, the centrifugal effect of the rotation of the installation shaft causes the gravity ball and the slide bar to move, so that the gravity ball limits the outer side of the bobbin to prevent the bobbin from separating from the installation shaft. Step 3: When the installation shaft is stuck unexpectedly, the yarn is tightened, causing the movable frame, yarn guide wheel, guide rod and convex rack to move upward. With the help of the convex rack, compound wheel, fixed wheel and ratchet, the installation shaft can be rotated to facilitate the installation shaft to resume normal rotation, so that the bobbin can continue to pay out the wire normally and avoid wire breakage.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The composite fiber yarn frame yarn drawing device adopts an elastic driving mechanism. When the installation shaft is stuck, the yarn tensioning force can be used to provide a force for the rotation of the installation shaft, so that the installation shaft can automatically resume normal rotation and avoid the problem of yarn breakage. Specifically, when the installation shaft is stuck and the bobbin cannot be rotated for normal pay-off, the movable frame, the yarn guide wheel, the guide rod and the convex rack are moved under the action of the convex rack, the composite wheel and the ratchet, so that the fixed wheel is forced to rotate, thereby driving the installation shaft to rotate, and then the installation shaft can be freed from the stuck state, ensuring the normal pay-off of the bobbin and avoiding yarn breakage; 2. The composite fiber yarn rack yarn drawing device adopts a centrifugal limiting mechanism, which can realize the limiting effect of the bobbin when the yarn is released, prevent the bobbin from being separated from the installation shaft, and ensure the stable operation of the device. Specifically, when the installation shaft and the bobbin are rotating to release the yarn, the gravity ball and the slide bar are moved under the action of centrifugal force, thereby realizing the limiting effect on the outer side of the bobbin, preventing the bobbin from being separated from the installation shaft when the bobbin is rotating at high speed to release the yarn; 3. The composite fiber yarn frame yarn guiding device adopts an adjustable guiding mechanism, which can adjust the guiding position of the yarn according to actual needs to avoid yarn entanglement so as to better meet the actual use needs. Specifically, the positioning rod can be separated from the circular hole on the mounting frame by pushing the movable block, thereby releasing the limiting effect of the movable block, and then the position of the movable block and the yarn guide ring can be adjusted by the sliding effect of the movable block and the rolling effect of the ball to meet the actual conductor requirements. After adjustment, the positioning rod is reset and nested with the circular hole on the mounting frame in cooperation with the action of the first spring to ensure the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall three-dimensional structure of the device of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting frame and the yarn guiding mechanism of the present invention; Figure 3 This is a schematic diagram of a front cross-sectional three-dimensional structure of the mounting frame of the present invention; Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the yarn guide mechanism of the present invention; Figure 5 It is a schematic diagram of a three-dimensional structure composed of a positioning mechanism and a driving mechanism of the present invention from a side view; Figure 6 This is a partially enlarged three-dimensional structural schematic diagram of the mounting shaft of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the convex rack and the composite wheel of the present invention.

[0016] In the figure: 1, bottom plate; 2, fixed rod; 3, mounting frame; 4, yarn guide mechanism; 401, movable block; 402, yarn guide ring; 403, positioning rod; 404, partition; 405, vertical rod; 406, first spring; 407, mounting plate; 408, ball; 5, fixed frame; 501, support plate; 502, yarn guide hole; 6, positioning mechanism; 601, mounting shaft; 602, limit plate; 603, elastic strip; 604, slide rod; 605, second spring; 606, gravity ball; 7, bobbin; 8, driving mechanism; 801, movable frame; 802, yarn guide wheel; 803, guide rod; 804, fixed plate; 805, third spring; 806, convex rack; 807, composite wheel; 808, connecting rod; 809, fixed wheel; 810, ratchet; 811, limit block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 7 The present invention provides a technical solution: a yarn drawing device for a composite fiber yarn rack, comprising a base plate 1, a fixed rod 2 and a fixed frame 5, the upper end surface of the base plate 1 is fixed with the fixed rod 2, the upper end surface of the base plate 1 is fixed with the fixed frame 5, the fixed rod 2 is fixed to the mounting frame 3 by bolts, the mounting frame 3 is installed with a yarn guiding mechanism 4, the upper bearing of the fixed frame 5 is connected with a positioning mechanism 6, the positioning mechanism 6 is installed with a bobbin 7, and the lower side of the positioning mechanism 6 is provided with a driving mechanism 8.

[0019] The positioning mechanism 6 includes an installation shaft 601, a limit plate 602, an elastic strip 603, a slide bar 604, a second spring 605 and a gravity ball 606. The installation shaft 601 is connected to the fixing frame 5 by a bearing, and the installation shaft 601 and the bobbin 7 are nested and connected. The limit plate 602 is fixed on the installation shaft 601, and the limit plate 602 is in contact with the bobbin 7 to achieve positioning; an elastic strip 603 is fixed at an equal angle on the outer side of the installation shaft 601, and the elastic strip 603 is in contact with the inner wall of the bobbin 7 to achieve fixation; a slide bar 604 is slidably connected at an equal angle to the front end of the installation shaft 601, and a second spring 605 is fixed between the slide bar 604 and the installation shaft 601; a gravity ball 606 is also fixed on the installation shaft 601, and the gravity ball 606 is located at the end of the installation shaft 601 away from the fixing frame 5; When using the composite fiber creel yarn drawing device, Figure 1-Figure 7 As shown, firstly, the bobbin 7 is installed, and the installation of the bobbin 7 can be realized by the nesting effect between the bobbin 7 and the installation shaft 601, until the bobbin 7 contacts the limiting plate 602, at which time the inner wall of the bobbin 7 contacts the elastic strip 603, and the one-time positioning of the bobbin 7 can be realized by the elastic effect of the elastic strip 603, and in the subsequent wire-releasing process, the yarn is pulled by the needle hook to rotate the bobbin 7 and the installation shaft 601 to release the wire, at this time, under the centrifugal force of the rotation of the installation shaft 601, the gravity ball 6 06 and the slide bar 604 move, so that the gravity ball 606 and the slide bar 604 block and limit the outer side of the wire drum 7, so as to prevent the wire drum 7 from being separated from the installation shaft 601 when the wire drum 7 rotates at a high speed to release the wire, thereby ensuring the stable operation of the device. When the wire release is completed, the wire drum 7 and the installation shaft 601 are no longer rotating, and the elastic effect of the second spring 605 is cooperated to make the gravity ball 606 and the slide bar 604 reset, and the blocking effect of the wire drum 7 is released, which is convenient for the disassembly and replacement of the wire drum 7, and improves the convenience of device operation. The yarn guiding mechanism 4 includes a movable block 401, a yarn guiding ring 402, a positioning rod 403, a partition 404, a vertical rod 405, a first spring 406, a mounting plate 407 and a ball 408. The movable block 401 is slidably connected to the mounting frame 3, and the lower end of the movable block 401 is fixed with a yarn guiding ring 402, and the lower end of the yarn guiding ring 402 is fixed with a positioning rod 403. At the same time, the positioning rod 403 is nested with the circular hole on the mounting frame 3 to achieve positioning; the movable block 401 is fixed with a The partition 404 is slidably connected with the vertical rod 405, and a first spring 406 is fixed between the partition 404 and the vertical rod 405; a mounting plate 407 is fixed on the vertical rod 405, and a ball 408 is installed on the mounting plate 407, and the ball 408 contacts the mounting frame 3 and can roll; a support plate 501 is fixed on the fixed frame 5, and a yarn guide hole 502 is opened on the support plate 501, and the support plate 501 is located above the movable frame 801; After the installation of the bobbin 7 is completed, Figure 1-Figure 7The position of the yarn guide ring 402 can be adjusted according to actual production needs to avoid entanglement between the yarns. At this time, it is only necessary to push the movable block 401 upward to separate the positioning rod 403 from the circular hole on the mounting frame 3, thereby releasing the positioning effect of the movable block 401 and the yarn guide ring 402, and then cooperate with the sliding effect between the movable block 401 and the mounting frame 3 and the rolling effect between the ball 408 and the mounting frame 3 to move the yarn guide ring 402, thereby realizing the position adjustment of the yarn guide ring 402 to better meet the actual use needs. After the adjustment is completed, by loosening the movable block 401, the positioning rod 403 is reset and nested with the circular hole on the mounting frame 3 under the elastic action of the first spring 406, thereby ensuring the stability of the adjusted position of the yarn guide ring 402, and finally the yarn of the bobbin 7 passes through the yarn guide hole 502 and the yarn guide ring 402 is connected to the needle hook for subsequent yarn weaving processing; The driving mechanism 8 includes a movable frame 801, a yarn guide wheel 802, a guide rod 803, a fixed plate 804, a third spring 805, a convex rack 806, a composite wheel 807, a connecting rod 808, a fixed wheel 809, a ratchet 810 and a limit block 811. The yarn guide wheel 802 is connected to the bearing on the movable frame 801. The guide rod 803 is fixed to the lower end of the movable frame 801. The guide rod 803 and the fixed plate 804 are slidably connected. The fixed plate 804 is fixed on the fixed frame 5. The third spring 805 is fixed between the fixed plate 804 and the guide rod 803. A convex rack 806 is fixed on the movable frame 801, and the convex rack 806 cooperates with the composite wheel 807 to realize transmission, and the outer side of the composite wheel 807 is a gear structure, and the inner side of the composite wheel 807 is a ratchet structure. A connecting rod 808 is fixed on the composite wheel 807, and the connecting rod 808 and the fixed wheel 809 are slidably connected, and the fixed wheel 809 and the mounting shaft 601 are fixedly connected. A ratchet 810 is rotatably connected to the fixed wheel 809 through a torsion spring, and the ratchet 810 contacts with a limit block 811 to realize positioning, and the limit block 811 is fixed in the fixed wheel 809; During the operation of the device, Figure 1-Figure 7As shown, when the mounting shaft 601 is stuck, the yarn is under tension under the traction of the needle hook, so that the movable frame 801, the yarn guide wheel 802 and the guide rod 803 are forced to move upward, thereby driving the convex rack 806 to move upward, and the sliding guide effect between the guide rod 803 and the fixed plate 804 can ensure the stability of the movement of the convex rack 806. When the convex rack 806 moves, the meshing transmission effect between the convex rack 806 and the outer gear of the composite wheel 807 makes the composite wheel 807 rotate counterclockwise under force, and the effect of the ratchet 810 and the ratchet structure inside the composite wheel 807 makes the fixed wheel 809 rotate counterclockwise synchronously with the composite wheel 807. The clockwise rotation drives the installation shaft 601 and the bobbin 7 to rotate, so that the installation shaft 601 can be better out of the stuck state, ensuring the normal operation of the device, thereby ensuring the normal line-releasing function of the bobbin 7. When the installation shaft 601 is out of the stuck state, under the action of the third spring 805, the movable frame 801, the guide wheel 802, the guide rod 803 and the convex rack 806 are automatically reset. When the convex rack 806 moves down, the composite wheel 807 rotates clockwise. When the ratchet 810 rotates, the fixed wheel 809 does not rotate with the composite wheel 807, thereby ensuring the normal operation of the device. This is the working principle of the yarn frame yarn feeding device for composite fiber.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite fiber yarn drawing device, comprising a base plate (1), a fixing rod (2) and a fixing frame (5), wherein the fixing rod (2) is fixed to the upper end surface of the base plate (1), and the fixing frame (5) is fixed to the upper end surface of the base plate (1), characterized in that: The fixing rod (2) is fixed to the mounting frame (3) by bolts. A yarn guide mechanism (4) is mounted on the mounting frame (3). A positioning mechanism (6) is connected to the fixing frame (5) via a bearing. A bobbin (7) is mounted on the positioning mechanism (6). A driving mechanism (8) is arranged at the lower side of the positioning mechanism (6). The driving mechanism (8) comprises a movable frame (801), a yarn guide wheel (802), a guide rod (803), a fixing plate (804), a third spring (805), a convex rack (806), a composite wheel (807), a connecting rod (808), a fixing wheel (809), a ratchet (810) and a limit block (811). The movable frame (801) is connected to the yarn guide wheel (802) via a bearing. A guide rod (803) is fixed to the lower end of the movable frame (801). A sliding connection is formed between the guide rod (803) and the fixing plate (804). The fixed plate (804) is fixed on the fixed frame (5), a third spring (805) is fixed between the fixed plate (804) and the guide rod (803), a convex rack (806) is fixed on the movable frame (801), the convex rack (806) cooperates with the composite wheel (807) to realize transmission, the outer side of the composite wheel (807) is a gear structure, the inner side of the composite wheel (807) is a ratchet structure, a connecting rod (808) is fixed on the composite wheel (807), the connecting rod (808) and the fixed wheel (809) are slidably connected, the fixed wheel (809) and the mounting shaft (601) are fixedly connected, a ratchet (810) is rotatably connected to the fixed wheel (809) through a torsion spring, the ratchet (810) contacts with a limit block (811) to realize positioning, and the limit block (811) is fixed in the fixed wheel (809).

2. A composite material fiber creel yarn drawing device according to claim 1, characterized in that: The yarn guiding mechanism (4) comprises a movable block (401), a yarn guiding ring (402), a positioning rod (403), a partition (404), a vertical rod (405), a first spring (406), a mounting plate (407) and a ball (408); the movable block (401) and the mounting frame (3) are slidably connected, the yarn guiding ring (402) is fixed at the lower end of the movable block (401), and the positioning rod (403) is fixed at the lower end of the yarn guiding ring (402); and the positioning rod (403) is nested with a circular hole on the mounting frame (3) to achieve positioning.

3. A composite fiber creel yarn drawing device according to claim 2, characterized in that: A partition plate (404) is fixed inside the movable block (401), and the partition plate (404) and the vertical rod (405) are slidably connected, and a first spring (406) is fixed between the partition plate (404) and the vertical rod (405).

4. A composite fiber creel yarn drawing device according to claim 3, characterized in that: A mounting plate (407) is fixed on the vertical rod (405), and a ball (408) is mounted on the mounting plate (407), and the ball (408) is in contact with the mounting frame (3) and can roll.

5. A composite fiber creel yarn drawing device according to claim 4, characterized in that: A support plate (501) is fixed on the fixed frame (5), a yarn guide hole (502) is provided on the support plate (501), and the support plate (501) is located above the movable frame (801).

6. A composite material fiber creel yarn drawing device according to claim 5, characterized in that: The positioning mechanism (6) comprises a mounting shaft (601), a limiting plate (602), an elastic strip (603), a sliding rod (604), a second spring (605) and a gravity ball (606); the mounting shaft (601) is bearing-connected to the fixing frame (5), and the mounting shaft (601) and the bobbin (7) are nested in each other; the limiting plate (602) is fixed on the mounting shaft (601), and the limiting plate (602) is in contact with the bobbin (7) to achieve positioning.

7. A composite fiber creel yarn drawing device according to claim 6, characterized in that: Elastic strips (603) are fixed at equal angles on the outside of the installation shaft (601), and the elastic strips (603) are in contact with the inner wall of the wire barrel (7) to achieve fixation.

8. A composite material fiber creel yarn drawing device according to claim 7, characterized in that: The front end of the installation shaft (601) is equiangularly slidably connected to a slide rod (604), and a second spring (605) is fixed between the slide rod (604) and the installation shaft (601).

9. A composite fiber creel yarn drawing device according to claim 8, characterized in that: A gravity ball (606) is also fixed on the installation shaft (601), and the gravity ball (606) is located at an end of the installation shaft (601) away from the fixing frame (5).

10. A composite fiber creel yarn drawing process, applied to a composite fiber creel yarn drawing device according to claim 9, characterized in that: The specific steps are as follows: Step 1: adjusting the position of the yarn guide ring (402) by means of the sliding action between the movable block (401) and the mounting frame (3), and achieving positioning by means of the positioning rod (403) being nested with the circular hole on the mounting frame (3); Step 2: Install the bobbin (7) on the installation shaft (601), cooperate with the elastic effect of the elastic strip (603) to achieve the positioning and supporting function of the bobbin (7), when the bobbin (7) rotates to release the line, the centrifugal effect of the rotation of the installation shaft (601) causes the gravity ball (606) and the slide bar (604) to move, so that the gravity ball (606) limits the outer side of the bobbin (7) to prevent the bobbin (7) from being separated from the installation shaft (601); Step 3: When the installation shaft (601) is stuck due to an accident, the yarn is tightened, causing the movable frame (801), the yarn guide wheel (802), the guide rod (803) and the convex rack (806) to move upward. With the help of the convex rack (806), the composite wheel (807), the fixed wheel (809) and the ratchet (810), the installation shaft (601) can be rotated, which facilitates the installation shaft (601) to resume normal rotation, so that the bobbin (7) can continue to release the thread normally to avoid thread breakage.

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