A blended yarn drawing device

Abstract

The utility model relates to a blended yarn spun yarn drafting technical field discloses a kind of blended yarn spun yarn drafting device, including bottom plate, the top of the bottom plate is fixedly connected with side plate symmetrically, the side of the side plate is sequentially slidably connected with front roller, two middle rollers and rear roller, the top of the bottom plate is uniformly fixedly connected with lift two, one side of the lift two is fixedly connected with connecting frame two, the outer wall of the connecting frame two is slidably connected in the side of side plate, one side of the connecting frame two is rotatably connected with leather roll, the leather roll is respectively matched with front roller, two middle rollers, rear roller. In the utility model, by adjusting the nip between multiple leather rolls and front roller, two middle rollers, rear roller, strip passes through four nips, adjust multiple lift two, adjust multiple nip to engage strip, first transmission structure drives two middle rollers to rotate, second transmission structure drives front roller and rear roller to rotate.

Description

Technical Field

[0001] This utility model relates to the field of drafting of blended yarns, and more particularly to a drafting device for blended yarns. Background Technology

[0002] Blended yarn refers to yarn spun from two or more different fibers mixed in a certain proportion, such as polyester-cotton blended yarn and polyester-viscose blended yarn. In the production process of blended yarn, the yarn needs to be drafted. Drafting is the process of lengthening and thinning the combed sliver, gradually straightening the fibers, eliminating hooks, and gradually bringing the sliver to a predetermined thickness.

[0003] During drafting, fibers are gradually drawn out one by one from the surrounding fiber group. Due to mutual friction, the hooks are gradually eliminated and the curls are gradually straightened. This is achieved through fiber control and speed variation. However, traditional drafting devices use multiple motors to drive the rollers, which cannot control the drafting intensity well during the drafting process of fine yarn. This can easily lead to excessive yarn drafting intensity, causing yarn breakage and other problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a blended yarn drafting device, which aims to improve the problem of yarn breakage caused by excessive yarn drafting due to multiple motors driving rollers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blended yarn drafting device, comprising a base plate, side plates symmetrically fixedly connected to the top of the base plate, a front roller, two middle rollers and a rear roller sequentially slidably connected to opposite sides of the side plates, a second lifting mechanism uniformly fixedly connected to the top of the base plate, a second connecting frame fixedly connected to one side of the second lifting mechanism, the outer wall of the second connecting frame slidably connected to one side of the side plate, a rubber roller rotatably connected to one side of the second connecting frame, the rubber roller being matched with the front roller, the two middle rollers and the rear roller respectively, a first lifting mechanism symmetrically fixedly connected to the top of the base plate, a servo motor fixedly connected to one side of the first lifting mechanism, a first transmission structure and a second transmission structure fixedly connected to one side of the two first lifting mechanisms respectively, one side of the first transmission structure being fixedly connected to one side of the front roller and the rear roller, and one side of the second transmission structure being fixedly connected to one side of the middle roller.

[0006] By adopting the above technical solution, the strip passes through the four jaws by adjusting the jaws between multiple rollers and the front roller, two middle rollers, and rear roller. Multiple lifting mechanisms are adjusted to engage the strip with the jaws. The first transmission structure drives the two middle rollers to rotate, and the second transmission structure drives the front roller and rear roller to rotate. Depending on the rotation speed, the strip completes the front drafting by passing through the front roller and middle rollers, the middle drafting by passing through the two middle rollers, and the final drafting by passing through the second middle roller and rear roller, thus avoiding excessive stretching of the strip that could lead to breakage.

[0007] Preferably, the first transmission structure includes a housing, one side of which is fixedly connected to one side of a side plate, the bottom of which is fixedly connected to the top of a base plate, a connecting frame three is slidably connected to the inner wall of the housing, and a bevel gear two is symmetrically rotatably connected to the inner wall of the connecting frame three.

[0008] Preferably, a limited-slip transmission is fixedly connected to one side of the two bevel gears, the top of the connecting frame three is fixedly connected to the bottom of one of the elevators, and one side of the limited-slip transmission is fixedly connected to the output end of one of the servo motors.

[0009] Preferably, the tooth ends of the second bevel gear are symmetrically meshed with the third bevel gear, the outer wall of the third bevel gear is rotatably connected to the inside of the connecting frame three and the side plate, and one end of the two third bevel gears is fixedly connected to one side of the two middle rollers.

[0010] Preferably, the second transmission structure includes a housing two, which is installed on one side of another side plate. The bottom of the housing two is fixedly connected to the top of the base plate. A connecting frame one is slidably connected inside the housing two, and a bevel gear one is symmetrically rotatably connected to the inner wall of the connecting frame one.

[0011] Preferably, a limited-slip transmission 2 is fixedly connected to one side of the bevel gear 1, the top of the connecting frame 1 is fixedly connected to the bottom of another elevator 1, and one side of the limited-slip transmission 2 is fixedly connected to the output end of another servo motor.

[0012] Preferably, the tooth ends of the two bevel gears one are respectively meshed with bevel gear five and bevel gear six, and the outer walls of bevel gear five and bevel gear six are rotatably connected to the inside of the connecting frame one and the side plate.

[0013] Preferably, one end of the bevel gear five is fixedly connected to one side of the rear roller, and one end of the bevel gear six is ​​fixedly connected to one side of the front roller.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by adjusting the jaws between multiple rollers and the front roller, two middle rollers, and the rear roller, the strip passes through the four jaws. By adjusting multiple lifting mechanisms, the jaws are engaged with the strip. The first transmission structure drives the two middle rollers to rotate, and the second transmission structure drives the front roller and the rear roller to rotate. Depending on the rotation speed, the strip completes the front drafting by passing through the front roller and the middle rollers, completes the middle drafting by passing through the two middle rollers, and completes the final drafting by passing through the second middle roller and the rear roller, thus avoiding excessive stretching of the strip that could lead to breakage.

[0015] 2. In this utility model, by adjusting the lifting mechanism, the two middle rollers are raised and lowered. The servo motor drives the limited-slip gearbox to achieve different speeds for the two middle rollers, thus increasing the speed between the two rollers. The power output uses a servo motor, which can provide high-precision feedback on the roller speed according to the requirements. The use of the limited-slip gearbox avoids the loss of power caused by the rollers spinning idly. The cooperation of the two middle rollers improves the drafting effect of the blended yarn. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a blended yarn drafting device proposed in this utility model; Figure 2 This is a partial structural diagram of the connecting frame of the blended yarn drafting device proposed in this utility model; Figure 3 This is a schematic diagram of the internal structure of the housing of a blended yarn drafting device proposed in this utility model. Figure 4 This is a schematic diagram of the internal structure of the housing of a blended yarn drafting device proposed in this utility model.

[0017] Legend: 1. Base plate; 2. Side plate; 3. Lifting mechanism one; 4. Housing one; 5. Housing two; 6. Connecting frame one; 7. Roller; 8. Front roller; 9. Servo motor; 10. Middle roller; 11. Lifting mechanism two; 12. Bevel gear one; 13. Connecting frame two; 14. Rear roller; 15. Connecting frame three; 16. Limited-slip gear one; 17. Limited-slip gear two; 18. Bevel gear two; 19. Bevel gear three; 20. Bevel gear five; 21. Bevel gear six. Detailed Implementation

[0018] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Reference Figures 1-4 This utility model provides an embodiment of a blended yarn drafting device, comprising a base plate 1, side plates 2 symmetrically fixedly connected to the top of the base plate 1, a front roller 8, two middle rollers 10 and a rear roller 14 slidably connected sequentially to opposite sides of the side plates 2, a second lifting mechanism 11 uniformly fixedly connected to the top of the base plate 1, a second connecting frame 13 fixedly connected to one side of the second lifting mechanism 11, the outer wall of the second connecting frame 13 slidably connected to one side of the side plate 2, a rubber roller 7 rotatably connected to one side of the second connecting frame 13, the rubber roller 7 being matched with the front roller 8, the two middle rollers 10 and the rear roller 14 respectively, a first lifting mechanism 3 symmetrically fixedly connected to the top of the base plate 1, a servo motor 9 fixedly connected to one side of the first lifting mechanism 3, a first transmission structure and a second transmission structure fixedly connected to one side of the two first lifting mechanisms 3 respectively, one side of the first transmission structure being fixedly connected to one side of the front roller 8 and the rear roller 14, and one side of the second transmission structure being fixedly connected to one side of the middle roller 10.

[0020] Specifically, by adjusting the jaws between multiple rollers 7 and the front roller 8, two middle rollers 10, and rear roller 14, the combed sliver passes through the four jaws. Multiple lifting mechanisms 11 are adjusted so that the connecting frame 13 drives the rollers 7 to slide on the side plate 2, adjusting the size of the jaws to engage the sliver. The first transmission structure drives the two middle rollers 10 to rotate, and the second transmission structure drives the front roller 8 and rear roller 14 to rotate. When the sliver passes through the front roller 8 and the first middle roller 10, the front roller 8 and the middle roller 10... The first front drafting is completed at a certain speed. The second middle drafting is completed when the sliver passes through the two middle rollers 10. The third rear drafting is completed when the sliver passes through the second middle roller 10 and the rear roller 14. The first transmission structure drives the two middle rollers 10 with different speeds, and the second transmission structure drives the front roller 8 and the rear roller 14 with different speeds. The speeds of the four rollers with different speeds increase sequentially. Together with the leather roller 7, they complete the drafting of the blended yarn. This improves the problem of yarn breakage caused by excessive yarn drafting due to multiple motors driving the rollers.

[0021] Reference Figure 3The first transmission structure includes a housing 4, one side of which is fixedly connected to one side of a side plate 2, and the bottom of which is fixedly connected to the top of a base plate 1. A connecting frame 3 15 is slidably connected to the inner wall of the housing 4. A bevel gear 2 18 is symmetrically rotatably connected to the inner wall of the connecting frame 3 15. A limited-slip transmission 16 is fixedly connected to the opposite side of the bevel gear 2 18. The top of the connecting frame 3 15 is fixedly connected to the bottom of one of the elevators 3. One side of the limited-slip transmission 16 is fixedly connected to the output end of one of the servo motors 9. The tooth ends of the bevel gear 2 18 are symmetrically meshed with bevel gear 3 19. The outer wall of the bevel gear 3 19 is rotatably connected to the interior of the connecting frame 3 15 and the side plate 2. One end of the two bevel gears 3 19 is fixedly connected to one side of two middle rollers 10.

[0022] Specifically, by adjusting the lifting mechanism 3, the servo motor 9, connecting frame 3 15, limited-slip transmission 1 16, bevel gear 2 18, and two bevel gears 3 19 are driven to rise and fall, thereby adjusting the rise and fall of the two middle rollers 10. The servo motor 9 drives the limited-slip transmission 1 16, causing the bevel gears 2 18 at both ends of the limited-slip transmission 1 16 to rotate at different speeds, which in turn drives the two bevel gears 3 19 to rotate, thus achieving the rotation of the two middle rollers 10 at different speeds and completing the speed increase between the two rollers. The power output uses the servo motor 9, which can provide high-precision feedback on the roller speed according to the needs. The use of the limited-slip transmission 1 16 avoids the loss of power caused by the rollers spinning idly. The cooperation of the two middle rollers 10 improves the drafting effect of the blended yarn.

[0023] Reference Figure 4 The second transmission structure includes a housing 2 5, which is mounted on one side of another side plate 2. The bottom of housing 2 5 is fixedly connected to the top of the base plate 1. A connecting frame 1 6 is slidably connected inside housing 2 5. A bevel gear 1 12 is symmetrically rotatably connected to the inner wall of the connecting frame 1 6. A limited slip transmission 2 17 is fixedly connected to the opposite side of the bevel gear 1 12. The top of the connecting frame 1 6 is fixedly connected to the bottom of another elevator 1 3. One side of the limited slip transmission 2 17 is fixedly connected to the output end of another servo motor 9. The tooth ends of the two bevel gears 1 12 are respectively meshed with bevel gear 5 20 and bevel gear 6 21. The outer walls of bevel gear 5 20 and bevel gear 6 21 are rotatably connected to the inside of the connecting frame 1 6 and the side plate 2. One end of bevel gear 5 20 is fixedly connected to one side of the rear roller 14, and one end of bevel gear 6 21 is fixedly connected to one side of the front roller 8.

[0024] Specifically, by adjusting the lifting mechanism 3, the servo motor 9, connecting frame 6, bevel gear 12, limited-slip transmission 2 17, bevel gear 5 20, and bevel gear 6 21 are driven to rise and fall, thereby adjusting the rise and fall of the front roller 8 and the rear roller 14. The servo motor 9 drives the limited-slip transmission 2 17, causing the bevel gear 12 at both ends of the limited-slip transmission 2 17 to rotate at different speeds, which in turn drives the bevel gear 5 20 and bevel gear 6 21 to rotate, achieving the speed increase between the two rollers. The use of the limited-slip transmission 2 17 avoids the loss of power caused by the rollers spinning idly.

[0025] Working principle: During use, adjusting the lifting mechanism 13 drives the two middle rollers 10 to rise and fall. Adjusting the jaws between the multiple rollers 7 and the front roller 8, the two middle rollers 10, and the rear roller 14 allows the combed sliver to pass through the four jaws. Adjusting the multiple lifting mechanisms 21 causes the rollers 7 to slide, adjusting the size of the jaws to engage the sliver. The servo motor 9 drives the limited-slip gearbox 16, enabling the two middle rollers 10 to rotate at different speeds. The servo motor 9 also drives the limited-slip gearbox 27, which in turn drives the bevel gears 5 20 and 6 2... 1. The sliver rotates at different speeds. When the sliver passes through the front roller 8 and the first middle roller 10, the front roller 8 and the middle roller 10 rotate at different speeds to complete the first front draft. When the sliver passes through the two middle rollers 10, the second middle draft is completed. When the sliver passes through the second middle roller 10 and the rear roller 14, the third rear draft is completed. The first transmission structure drives the two middle rollers 10 with different speeds, and the second transmission structure drives the front roller 8 and the rear roller 14 with different speeds. The speeds of the four rollers with different speeds increase sequentially, and together with the leather roller 7, the drafting of the blended yarn is completed.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A blended yarn drafting device, comprising a base plate (1), characterized in that: The top of the base plate (1) is symmetrically fixedly connected to side plates (2). On the opposite side of the side plates (2), a front roller (8), two middle rollers (10) and a rear roller (14) are slidably connected in sequence. The top of the base plate (1) is uniformly fixedly connected to a second elevator (11). A second connecting frame (13) is fixedly connected to one side of the second elevator (11). The outer wall of the second connecting frame (13) is slidably connected to one side of the side plate (2). A rubber roller (7) is rotatably connected to one side of the second connecting frame (13). The bottom plate (1) is symmetrically fixedly connected to the top of the bottom plate (1) and the two middle rollers (10) and the rear roller (14). The top of the bottom plate (1) is fixedly connected to the first lifting machine (3). The first lifting machine (3) is fixedly connected to one side of the first lifting machine (3). The two lifting machines (3) are respectively fixedly connected to the first transmission structure and the second transmission structure. The first transmission structure is fixedly connected to one side of the front roller (8) and the rear roller (14). The second transmission structure is fixedly connected to one side of the middle roller (10).

2. The blended yarn drafting device according to claim 1, characterized in that: The first transmission structure includes a housing (4), one side of which is fixedly connected to one side of one of the side plates (2), the bottom of which is fixedly connected to the top of the bottom plate (1), a connecting frame (15) is slidably connected to the inner wall of the housing (4), and a bevel gear (18) is symmetrically rotatably connected to the inner wall of the connecting frame (15).

3. The blended yarn drafting device according to claim 2, characterized in that: The bevel gear two (18) is fixedly connected to the limited slip gear one (16) on one side, the top of the connecting frame three (15) is fixedly connected to the bottom of one of the elevators one (3), and one side of the limited slip gear one (16) is fixedly connected to the output end of one of the servo motors (9).

4. The blended yarn drafting device according to claim 3, characterized in that: The bevel gear two (18) is symmetrically meshed with bevel gear three (19). The outer wall of bevel gear three (19) is rotatably connected to the interior of connecting frame three (15) and side plate (2). One end of the two bevel gear three (19) is fixedly connected to one side of the two middle rollers (10).

5. The blended yarn drafting device according to claim 1, characterized in that: The second transmission structure includes a housing 2 (5), which is installed on one side of another side plate (2). The bottom of the housing 2 (5) is fixedly connected to the top of the base plate (1). A connecting frame 1 (6) is slidably connected inside the housing 2 (5). A bevel gear 1 (12) is symmetrically rotatably connected to the inner wall of the connecting frame 1 (6).

6. The blended yarn drafting device according to claim 5, characterized in that: The bevel gear one (12) is fixedly connected to the opposite side of the limited slip transmission two (17), the top of the connecting frame one (6) is fixedly connected to the bottom of another elevator one (3), and one side of the limited slip transmission two (17) is fixedly connected to the output end of another servo motor (9).

7. The blended yarn drafting device according to claim 6, characterized in that: The tooth ends of the two bevel gears 1 (12) are respectively meshed with bevel gear 5 (20) and bevel gear 6 (21), and the outer walls of bevel gear 5 (20) and bevel gear 6 (21) are rotatably connected to the interior of connecting frame 1 (6) and side plate (2).

8. The blended yarn drafting device according to claim 7, characterized in that: One end of the bevel gear five (20) is fixedly connected to one side of the rear roller (14), and one end of the bevel gear six (21) is fixedly connected to one side of the front roller (8).

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