Traction roller of yarn spinning two-for-one twister

Abstract

The invention provides a traction roller of a yarn spinning two-for-one twister, which belongs to the technical field of spinning equipment and comprises a mounting disc and friction plates, and the mounting disc is provided with a plurality of mounting grooves corresponding to the friction plates. Wherein one side of each mounting groove is rotationally connected with a connecting shaft, the friction plates are connected to the connecting shafts, the connecting shafts are further connected with worm wheels, an end face gear is arranged in the mounting disc, and a transmission mechanism is arranged between the end face gear and the worm wheels. And the end face gear can synchronously drive the multiple worm wheels to rotate. The friction plates are arranged to be rotatable, and the multiple friction plates synchronously rotate by rotating the end face gear, so that the abrasion areas of the friction plates can be rotated to be not corresponding to the yarn, and the non-abrasion areas of the friction plates can be rotated to be corresponding to the yarn, the effect of rapidly replacing the traction areas of the friction plates is achieved, the downtime of equipment is shortened, and the production efficiency is improved. The replacement period of the friction plate is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of textile equipment technology, specifically referring to a traction roller for a yarn spinning twisting machine. Background Technology

[0002] The overfeed roller of a doubling twister is the core mechanism for achieving overfeed energy. Its design hinges on the fact that the speed at which the yarn is actively fed is slightly higher than the winding speed of the take-up unit. This speed difference ensures the yarn is in a relaxed, low-tension state before entering the package, effectively eliminating internal stress caused by twisting and winding tension. Its direct effect is to impart better bulk, flexibility, and elastic recovery to the yarn, making it particularly suitable for the production of sewing threads, knitting threads, and fancy yarns that require a soft hand feel and high coverage. This device is typically a passive roller or an independently driven roller, controlled by precise speed regulation.

[0003] The overfeed roller drives the retwisted yarn through friction generated by multiple sets of friction plates. After long-term operation, the surface of the friction plates will wear down, and when the wear reaches a certain level, it can easily cause the retwisted yarn to break. Therefore, regular inspection and replacement of the friction plates is a necessary maintenance task. However, the current replacement process is rather cumbersome, requiring the entire roller to be disassembled, new friction plates to be installed, and then reassembled, which is time-consuming and labor-intensive. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of the present invention is to provide a traction roller for a yarn spinning twisting machine, so as to at least partially solve the problems mentioned in the background art.

[0005] The technical solution adopted by this invention is as follows: This invention proposes a traction roller for a yarn spinning doubling machine, comprising: Two symmetrically arranged mounting plates, with a mounting gap provided between the corresponding end faces of the two mounting plates; The installation gap is provided with two sets of circularly distributed friction plates, which are staggered. The mounting plate is provided with a plurality of mounting slots corresponding to the friction pads, and the friction pads are installed in the mounting slots. In this configuration, a connecting shaft is rotatably connected to one side of each of the multiple mounting slots. The friction plate is connected to the connecting shaft, and a worm gear is also connected to the connecting shaft. An end face gear is provided inside the mounting plate. The end face gear is configured to rotate around the axis of the mounting plate. A transmission mechanism is provided between the end face gear and the multiple worm gears, so that the end face gear can synchronously drive the multiple worm gears to rotate.

[0006] Furthermore, a shaft tube is provided at the center of the mounting plate, and the mounting plate and the shaft tube are arranged coaxially with each other. The end face gear is rotatably connected to the shaft tube through a bearing.

[0007] Furthermore, an operating lever is fixed on the end face gear, and one end of the operating lever extends to the outside of the mounting plate.

[0008] Furthermore, a cover plate is installed at one end of each of the two mounting plates that is far apart from each other. The cover plate is provided with an arc-shaped groove corresponding to the operating lever, and the operating lever extends to the outside of the mounting plate through the arc-shaped groove.

[0009] Furthermore, the transmission mechanism includes a worm gear that meshes with the worm wheel, and a gear is fixed to the end of the worm gear away from the worm wheel, the gear meshing with the end face gear.

[0010] Furthermore, a plurality of first bearing seats corresponding to the connecting shaft are fixed inside the mounting plate, and the connecting shaft is connected to the first bearing seats.

[0011] Furthermore, a plurality of second bearing seats corresponding to the worm gear are fixed inside the mounting plate, and the worm gear is connected to the second bearing seats.

[0012] Furthermore, a polishing disc is provided on the inner side of the mounting plate, the polishing disc is located on the side of the friction pad close to the cover plate, and multiple friction pads are in contact with the polishing disc.

[0013] Furthermore, a spring is provided between the cover plate and the grinding disc, the spring being configured to apply an elastic pressure to the grinding disc that moves toward the friction disc.

[0014] Furthermore, the cover plate is configured to move axially along the spring, thereby allowing the cover plate to adjust the elastic pressure of the spring.

[0015] Beneficial effects: 1. By making the friction plates rotatable, multiple friction plates can be rotated synchronously by rotating the end face gear. Since the friction plates are circular, the worn area of ​​the friction plate can be rotated to be out of alignment with the yarn, and the unworn area of ​​the friction plate can be rotated to be aligned with the yarn. This can quickly replace the traction area of ​​the friction plate, shorten the equipment downtime, and extend the replacement cycle of the friction plates.

[0016] 2. By setting up a grinding disc, and having multiple friction discs in contact with the grinding disc, when slight grooves appear on the surface of the friction disc, the operating lever can be moved back and forth to drive the end face gear to rotate back and forth. Correspondingly, the friction discs can rotate back and forth synchronously, thus allowing the friction discs to rub against the grinding discs. The grinding discs are used to polish and repair the surface of the friction discs, removing slight grooves and extending the service life of the friction discs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a traction roller for a yarn spinning doubling machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram showing the positional distribution of two sets of friction plates in the traction roller of a yarn spinning twisting machine according to an embodiment of the present invention; Figure 3 This is a schematic diagram showing the position distribution of the mounting grooves in the traction roller of a yarn spinning twisting machine according to an embodiment of the present invention; Figure 4 This is a schematic diagram showing the positional distribution of the transmission mechanism in the traction roller of a yarn spinning twisting machine according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the transmission mechanism in the traction roller of a yarn spinning twisting machine according to an embodiment of the present invention; Figure 6 This is a schematic diagram showing the positions of the grinding disc and spring in the traction roller of a yarn spinning twisting machine according to an embodiment of the present invention; Figure 7 This is a schematic diagram showing the positions of the cover plate, grinding disc, and spring in the traction roller of a yarn spinning twisting machine according to an embodiment of the present invention.

[0018] Among them, 1. mounting plate; 101. mounting gap; 102. mounting groove; 11. shaft tube; 12. first bearing seat; 13. second bearing seat; 2. friction plate; 3. connecting shaft; 4. worm gear; 5. worm; 51. gear; 6. end face gear; 61. operating lever; 7. cover plate; 701. arc groove; 8. grinding disc; 9. spring.

[0019] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0021] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments.

[0022] Combination Figure 1 As shown, an embodiment of the present invention provides a traction roller for a yarn spinning twisting machine, including a mounting plate 1 and a friction plate 2.

[0023] There are two mounting plates 1, which are arranged symmetrically. There is a mounting gap 101 between the end faces of the two mounting plates 1. There are also two sets of friction plates 2, which are located in the mounting gap 101 and are respectively installed on the two mounting plates 1.

[0024] Furthermore, the two sets of friction plates 2 are staggered (e.g., Figure 2 As shown in the figure, this creates a traction gap between the two sets of friction plates 2, which can pull the yarn.

[0025] In a specific embodiment, the mounting plate 1 is provided with a plurality of mounting slots 102 corresponding to the friction plates 2, and the plurality of friction plates 2 are respectively installed in the plurality of mounting slots 102 (e.g., Figure 3 (As shown).

[0026] Combination Figure 4 As shown, a shaft tube 11 is provided at the center of the mounting plate 1. The mounting plate 1 and the shaft tube 11 are arranged coaxially with each other. The shaft tube 11 is installed on the corresponding drive shaft of the twisting machine, and the drive shaft drives the rollers of multiple stations to rotate synchronously.

[0027] Thus, the yarn passes through the traction gap formed between the two sets of friction plates 2, and is then introduced into the winding station. The drive shaft of the twisting machine drives the mounting plate 1 to rotate, and the yarn is pulled and transported by the friction force generated between the friction plates 2 and the yarn.

[0028] Combination Figure 4 As shown, a connecting shaft 3 is rotatably connected to one side of each of the multiple mounting slots 102. The friction plate 2 is connected to the connecting shaft 3, so that the connecting shaft 3 can drive the friction plate 2 to rotate. A worm gear 4 is also connected to the connecting shaft 3. The friction plate 2, the connecting shaft 3 and the worm gear 4 are all arranged coaxially with each other, and the friction plate 2 and the worm gear 4 are both fixed on the connecting shaft 3, so that the worm gear 4 can drive the friction plate 2 to rotate through the connecting shaft 3.

[0029] An end face gear 6 is provided inside the mounting plate 1. The end face gear 6 is rotatably connected to the shaft tube 11 through a bearing, so that the end face gear 6 can rotate around the axis of the mounting plate 1. A transmission mechanism is provided between the end face gear 6 and multiple worm gears 4. The end face gear 6 can synchronously drive multiple worm gears 4 to rotate through the transmission mechanism. Correspondingly, the end face gear 6 can synchronously drive multiple friction plates 2 to rotate.

[0030] In a specific embodiment, a plurality of first bearing seats 12 corresponding to the connecting shaft 3 are fixed on the inner side of the mounting plate 1. The connecting shaft 3 is connected to the first bearing seats 12, and the first bearing seats 12 support the connecting shaft 3.

[0031] Thus, when the area of ​​friction plate 2 in contact with the yarn becomes worn and the wear is so severe that it can no longer be used, the rotating end face gear 6 causes multiple friction plates 2 to rotate synchronously. Since the friction plate 2 is circular, the rotation of the friction plate 2 rotates the worn area so that it does not correspond to the yarn, and the unworn area of ​​the friction plate 2 rotates so that it corresponds to the yarn. This achieves the effect of quickly replacing the traction area of ​​the friction plate 2, shortening the equipment downtime and extending the replacement cycle of the friction plate 2.

[0032] Combination Figure 1 , Figure 4 and Figure 5 As shown, an operating lever 61 is fixed on the end face gear 6, and a cover plate 7 is installed at the ends of the two mounting plates 1 that are far apart from each other. The cover plate 7 is provided with an arc-shaped groove 701 corresponding to the operating lever 61. The operating lever 61 extends to the outside of the mounting plate 1 through the arc-shaped groove 701. The cover plate 7 seals the inside of the mounting plate 1 to reduce the intrusion of dust.

[0033] Meanwhile, the operating lever 61, which is connected to the end face gear 6, extends to the outside of the mounting plate 1 via the arc groove 701. Therefore, without removing the cover plate 7, the end face gear 6 can be rotated by moving the operating lever 61 and rotating it along the arc groove 701, thereby adjusting the friction plate 2.

[0034] Combination Figure 5 As shown, the transmission mechanism includes a worm 5, which meshes with a worm wheel 4. A gear 51 is fixed at the end of the worm 5 away from the worm wheel 4. The gear 51 meshes with an end face gear 6. Therefore, the end face gear 6 can drive the worm 5 to rotate through the gear 51. At the same time, the rotating worm 5 can drive the worm wheel 4 to rotate. Correspondingly, the connecting shaft 3 and the friction plate 2 can rotate synchronously.

[0035] The worm gear 4 and worm 5 have a self-locking function. When the end gear 6 does not rotate, the friction plate 2 is locked and will not rotate on its own.

[0036] In a specific embodiment, a plurality of second bearing seats 13 corresponding to the worm 5 are fixed on the inner side of the mounting plate 1. The worm 5 is connected to the second bearing seats 13 and is supported by the second bearing seats 13.

[0037] Thus, when it is necessary to adjust the friction plate 2, the operating lever 61 is moved and rotated along the arc groove 701, thereby driving the end face gear 6 to rotate. The end face gear 6 can drive the worm 5 to rotate through the gear 51. At the same time, the rotating worm 5 drives the worm wheel 4 to rotate. Correspondingly, the connecting shaft 3 and the friction plate 2 can rotate synchronously, thereby adjusting the friction plate 2.

[0038] Combination Figure 6 and Figure 7 As shown, a polishing disc 8 is provided on the inner side of the mounting plate 1. The polishing disc 8 is located on the side of the friction disc 2 near the cover plate 7. Multiple friction discs 2 are in contact with the polishing disc 8. When the friction disc 2 rotates, the friction disc 2 and the polishing disc 8 rub against each other. By polishing with the polishing disc 8, the slight grooves on the surface of the friction disc 2 caused by yarn wear can be removed, thereby extending the service life of the friction disc 2.

[0039] Furthermore, a spring 9 is provided between the cover plate 7 and the grinding disc 8. The spring 9 is configured to apply elastic pressure to the grinding disc 8 to move towards the friction disc 2 side, so that the grinding disc 8 always contacts the friction disc 2 with a certain pressure. When the friction disc 2 and the grinding disc 8 rub against each other, sufficient friction force can be generated between them, thereby effectively grinding the surface of the friction disc 2.

[0040] Furthermore, the cover plate 7 is configured to move along the axial direction of the spring 9, so that the cover plate 7 can adjust the elastic pressure of the spring 9.

[0041] In a specific embodiment, the inner wall of the mounting plate 1 is provided with internal threads, and the outer side of the cover plate 7 is provided with external threads. The cover plate 7 is connected to the inner side of the mounting plate 1 by threads. Correspondingly, by rotating the cover plate 7, the cover plate 7 can move axially along the spring 9. When the cover plate 7 moves towards the friction plate 2, it can compress the spring 9, and the elastic force of the spring 9 increases. Under the reaction force of the spring 9, the pressure of the grinding plate 8 on the friction plate 2 increases. Correspondingly, when the cover plate 7 moves away from the friction plate 2, the spring 9 is released, and the elastic force of the spring 9 decreases. Under the reaction force of the spring 9, the pressure of the grinding plate 8 on the friction plate 2 decreases.

[0042] Thus, when slight grooves appear on the surface of the friction plate 2, the operating lever 61 can be moved back and forth to drive the end face gear 6 to rotate back and forth. Correspondingly, the friction plate 2 can rotate back and forth synchronously, so that the friction plate 2 can rub back and forth with the grinding plate 8. The grinding plate 8 is used to grind and repair the surface of the friction plate 2. At the same time, the cover plate 7 can be rotated to adjust the pressure of the grinding plate 8 on the friction plate 2 according to the grinding situation.

[0043] The working principle of this invention is as follows: the yarn passes through the traction gap formed between the two sets of friction plates 2, and then is introduced into the winding station. The drive shaft of the twisting machine drives the rollers of multiple stations to rotate synchronously. The yarn is pulled and transported by the friction force generated between the friction plates 2 and the yarn.

[0044] When the area of ​​friction plate 2 in contact with the yarn becomes worn and the wear is so severe that it can no longer be used, the operating lever 61 is turned and rotated along the arc groove 701, thereby driving the end face gear 6 to rotate. The end face gear 6 can drive the worm gear 5 to rotate through the gear 51. At the same time, the rotating worm gear 5 drives the worm wheel 4 to rotate. Correspondingly, the connecting shaft 3 and the friction plate 2 can rotate synchronously, thereby causing multiple friction plates 2 to rotate synchronously. Since the friction plate 2 is circular, the rotation of the friction plate 2 rotates the worn area to a position that is not aligned with the yarn, and the unworn area of ​​the friction plate 2 rotates to align with the yarn. This achieves the effect of quickly replacing the traction area of ​​the friction plate 2, shortening the equipment downtime, and extending the replacement cycle of the friction plate 2.

[0045] When slight grooves appear on the surface of the friction plate 2, the operating lever 61 can be reciprocated to drive the end face gear 6 to rotate reciprocally. Correspondingly, the friction plate 2 can rotate synchronously, allowing the friction plate 2 to rub against the grinding plate 8. The grinding plate 8 is used to polish and finish the surface of the friction plate 2. At the same time, the cover plate 7 can be rotated to adjust the pressure of the grinding plate 8 on the friction plate 2 according to the polishing situation. When it is necessary to increase the pressure, the cover plate 7 is moved closer to the friction plate 2, compressing the spring 9. The elastic force of the spring 9 increases, and under the reaction force of the spring 9, the pressure of the grinding plate 8 on the friction plate 2 increases. Correspondingly, when it is necessary to decrease the pressure, the cover plate 7 is moved away from the friction plate 2, releasing the spring 9. The elastic force of the spring 9 decreases, and under the reaction force of the spring 9, the pressure of the grinding plate 8 on the friction plate 2 decreases.

[0046] In summary, by making the friction plate 2 rotatable, when the area of ​​the friction plate 2 in contact with the yarn becomes worn and unusable, the end face gear 6 is rotated to make multiple friction plates 2 rotate synchronously. Since the friction plate 2 is circular, the rotation of the friction plate 2 rotates the worn area to a position that is no longer aligned with the yarn, and the unworn area of ​​the friction plate 2 rotates to a position aligned with the yarn. This achieves the effect of quickly replacing the traction area of ​​the friction plate 2, shortening equipment downtime, and extending the replacement cycle of the friction plate 2.

[0047] By setting a grinding disc 8, and having multiple friction discs 2 in contact with the grinding disc 8, when slight grooves appear on the surface of the friction disc 2, the operating lever 61 can be reciprocated to drive the end face gear 6 to rotate reciprocally. Correspondingly, the friction discs 2 can rotate synchronously, thus allowing the friction discs 2 to rub against the grinding disc 8. The grinding disc 8 is used to grind and repair the surface of the friction disc 2, removing slight grooves and extending the service life of the friction disc 2. At the same time, the pressure of the grinding disc 8 on the friction disc 2 can be adjusted by rotating the cover plate 7 according to the grinding situation.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A traction roller for a yarn spinning doubling twister, characterized in that, include: Two symmetrically arranged mounting discs (1), with an installation gap (101) between the corresponding end faces of the two mounting discs (1). Two sets of circularly distributed friction plates (2) are installed in the installation gap (101), and the two sets of friction plates (2) are staggered. The mounting plate (1) is provided with a plurality of mounting slots (102) corresponding to the friction plate (2), and the friction plate (2) is installed in the mounting slots (102); The mounting groove (102) is rotatably connected to a connecting shaft (3) on one side. The friction plate (2) is connected to the connecting shaft (3). A worm gear (4) is also connected to the connecting shaft (3). An end face gear (6) is provided in the mounting plate (1). The end face gear (6) is configured to rotate around the axis of the mounting plate (1). A transmission mechanism is provided between the end face gear (6) and the multiple worm gears (4) so ​​that the end face gear (6) can synchronously drive the multiple worm gears (4) to rotate.

2. The traction roller of the yarn spinning doubling machine according to claim 1, characterized in that: The mounting plate (1) has a shaft tube (11) at its center. The mounting plate (1) and the shaft tube (11) are arranged coaxially with each other. The end face gear (6) is rotatably connected to the shaft tube (11) through a bearing.

3. The traction roller of the yarn spinning doubling machine according to claim 1, characterized in that: An operating lever (61) is fixed on the end face gear (6), and one end of the operating lever (61) extends to the outside of the mounting plate (1).

4. The traction roller of the yarn spinning doubling machine according to claim 3, characterized in that: A cover plate (7) is installed at one end of each of the two mounting plates (1) that is far apart from each other. The cover plate (7) is provided with an arc groove (701) corresponding to the operating lever (61). The operating lever (61) extends to the outside of the mounting plate (1) via the arc groove (701).

5. The traction roller of the yarn spinning doubling machine according to claim 1, characterized in that: The transmission mechanism includes a worm (5) that meshes with the worm wheel (4). A gear (51) is fixed at one end of the worm (5) away from the worm wheel (4), and the gear (51) meshes with the end face gear (6).

6. The traction roller of the yarn spinning doubling machine according to claim 1, characterized in that: The mounting plate (1) has a plurality of first bearing seats (12) fixed on its inner side, which correspond to the connecting shaft (3), and the connecting shaft (3) is connected to the first bearing seats (12).

7. The traction roller of the yarn spinning doubling machine according to claim 5, characterized in that: The mounting plate (1) has a plurality of second bearing seats (13) corresponding to the worm (5) fixed on its inner side, and the worm (5) is connected to the second bearing seats (13).

8. The traction roller of the yarn spinning doubling machine according to claim 4, characterized in that: A polishing disc (8) is provided on the inner side of the mounting plate (1). The polishing disc (8) is located on the side of the friction disc (2) close to the cover plate (7). All of the friction discs (2) are in contact with the polishing disc (8).

9. The traction roller of the yarn spinning doubling machine according to claim 8, characterized in that: A spring (9) is provided between the cover plate (7) and the grinding disc (8), the spring (9) being configured to apply an elastic pressure to the grinding disc (8) to move toward the friction disc (2).

10. The traction roller of the yarn spinning doubling machine according to claim 9, characterized in that: The cover plate (7) is configured to move axially along the spring (9), so that the cover plate (7) can adjust the elastic pressure of the spring (9).

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