Overhead accidental drafting prevention feeding device for roving frame

Abstract

The utility model relates to the technical field of textile production, in particular to an overhead accidental drafting feeding device of a roving frame, which comprises a frame, a front traction roller and a rear traction roller, the front traction roller and the rear traction roller are arranged on the frame, and a guide roller is arranged on the frame and above the front traction roller. Through synchronous rotation of driven wheels on the two sides in a driving assembly, the surfaces of a front traction roller and a rear traction roller keep the same linear speed, rough yarn is prevented from being accidentally drafted, the output end of a second driving motor in a guiding assembly is matched to drive a lead screw to rotate, and then a sliding block is driven to slide along a guiding rod; therefore, the roving yarn is drafted on the traction rear roller in a position-variable mode, the drafting friction effect is guaranteed, namely the tension stability is guaranteed, and the roving yarn is further prevented from being drafted accidentally.

Description

Technical Field

[0001] The utility model relates to the technical field of textile production, in particular to an overhead anti-accidental drafting and feeding device for a roving frame. Background Art

[0002] The main task of the roving frame is to convert scattered fiber strips into roving with a preliminary structure, providing a solid foundation for subsequent spun yarn and ensuring the quality and efficiency of the entire textile product. Specifically, the yarn fiber strips output from the previous process are further stretched, and twisting is introduced to increase the cohesion between the fibers.

[0003] For example, the Chinese patent with application number CN201721193234.8 discloses a device for reducing accidental drafting of a roving frame, including a first rotating shaft and a second rotating shaft, the first rotating shaft is provided with an input sprocket, a first sprocket and a first tooth clutch, and the second rotating shaft is provided with an output sprocket, a third sprocket, a second tooth clutch and a guide roller. It can quickly adjust the rotation speed and tension of the first row of guide rollers, reduce the situation of accidental drafting in the rear row, and greatly reduce the waste of raw materials caused by the surplus of the rear row of slivers, thereby improving the product quality. However, in actual use, during the process of guiding and drafting the yarn fiber strips, they will be in the same position of the guide rollers for a long time, and the cortex guide rollers will be worn to a certain extent. After the surface is polished, the friction is reduced, resulting in relaxation or slippage in the conveying process of the yarn fiber strips, making it difficult to ensure stable tension. Utility Model Content

[0004] In view of this, the purpose of the utility model is to propose an elevated anti-accidental drafting feeding device for a roving frame to solve the technical problem that the yarn fiber strips in the prior art become loose or slip during the guiding and drafting process, making it difficult to ensure stable tension.

[0005] Based on the above purpose, the utility model provides a roving frame overhead anti-accidental drafting feeding device, comprising a frame and a traction front roller and a traction rear roller arranged on the frame, wherein a guide roller is arranged above the traction front roller on the frame, and the roving frame overhead anti-accidental drafting feeding device also includes:

[0006] A driving assembly, the driving assembly is mounted on the frame, and the driving assembly is used to drive the traction front roller and the traction rear roller to rotate at the same speed;

[0007] A partition, which is installed in the middle of the frame and divides the interior of the frame into a working area and a protection area;

[0008] A guide assembly is installed on the frame and is used to adjust the traction position of the traction rear roller on the roving yarn.

[0009] Furthermore, the driving assembly includes a driving motor 1, a driving wheel and a driven wheel, the driving motor 1 is installed on the frame, the driving wheel is installed on the output end of the driving motor 1, there are two driven wheels and both are rotatably installed on the frame, the two driven wheels are respectively connected to the driving wheel through a synchronous belt, and the two driven wheels are respectively coaxially connected to the traction front roller and the traction rear roller.

[0010] Furthermore, the guide assembly includes a second drive motor, a lead screw and a yarn guide, the second drive motor is installed on the frame, the lead screw is installed on the output end of the second drive motor, a guide rod is installed between the partition and the side wall of the frame, a slider is threadedly installed on the lead screw, a yarn passing horn is penetrated by the slider, the slider is slidably set on the guide rod, and the yarn guide is adjustably set on the slider.

[0011] Furthermore, the diameters of the two driven wheels remain consistent.

[0012] Furthermore, the synchronous belt is a V-belt.

[0013] Furthermore, a yarn gap is left between the yarn guide and the traction rear roller, and the yarn gap is not less than the diameter of the roving yarn.

[0014] Furthermore, the portion of the yarn guide member that cooperates with the traction rear roller is an arc-shaped structure, yarn guide rods are evenly distributed between the arc-shaped structures, and a plurality of the yarn guide rods are rotatably connected to the arc-shaped structures.

[0015] The beneficial effects of the utility model are as follows: an elevated anti-accidental drafting feeding device for a roving frame is adopted. When in use, the driven wheels on both sides of the driving component rotate synchronously, so that the surfaces of the front traction roller and the rear traction roller maintain the same linear speed, thereby avoiding accidental drafting of the roving yarn. The output end of the second driving motor in the guide component drives the lead screw to rotate, and then drives the slider to slide along the guide rod, so that the roving yarn can be drafted in a variable position on the rear traction roller, ensuring the drafting friction effect, that is, the tension stability is guaranteed, and further avoiding accidental drafting of the roving yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the assembly of some structures in the utility model;

[0019] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0020] Figure 4 It is a schematic diagram of the state of the guide assembly and the traction rear roller in the utility model;

[0021] The markings in the figure are:

[0022] 1. Frame; 2. Front traction roller; 3. Rear traction roller; 4. Guide roller; 5. Partition plate; 6. Driving motor 1; 7. Driving wheel; 8. Driven wheel; 9. Synchronous belt; 10. Driving motor 2; 11. Lead screw; 12. Yarn guide; 13. Guide rod; 14. Sliding block; 15. Yarn passing bell mouth; 16. Yarn guide rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] The utility model proposes an overhead anti-accidental drafting feeding device for a roving frame, such as Figures 1 to 4 As shown, it includes a frame 1 and a traction front roller 2 and a traction rear roller 3 arranged on the frame 1, a guide roller 4 is arranged above the traction front roller 2 on the frame 1, and the roving frame elevated anti-accidental drafting feeding device also includes:

[0026] A driving assembly is installed on the frame 1 and is used to drive the front traction roller 2 and the rear traction roller 3 to rotate at the same speed;

[0027] The partition 5 is installed in the middle of the frame 1 and divides the interior of the frame 1 into a working area and a protection area;

[0028] The guide assembly is installed on the frame 1 and is used to adjust the traction position of the roving yarn on the traction rear roller 3.

[0029] In this embodiment, the driving assembly includes a driving motor 6, a driving wheel 7 and a driven wheel 8. The driving motor 6 is installed on the frame 1, the driving wheel 7 is installed on the output end of the driving motor 6, there are two driven wheels 8 and both are rotatably installed on the frame 1, the two driven wheels 8 are respectively connected to the driving wheel 7 through a synchronous belt 9, the two driven wheels 8 are respectively coaxially connected to the traction front roller 2 and the traction rear roller 3, the diameters of the two driven wheels 8 are consistent, and the two rotate synchronously so that the surfaces of the traction front roller 2 and the traction rear roller 3 maintain the same linear speed to avoid accidental stretching of the coarse yarn.

[0030] In this embodiment, the guide assembly includes a driving motor 10, a screw 11 and a yarn guide 12. The driving motor 10 is installed on the frame 1, and the screw 11 is installed on the output end of the driving motor 10. A guide rod 13 is installed between the partition 5 and the side wall of the frame 1. A slider 14 is threadedly installed on the screw 11. A yarn passing horn 15 is penetrated by the slider 14. The slider 14 is slidably set on the guide rod 13, and the yarn guide 12 can be adjustably set on the slider 14 so that the coarse yarn can be changed in position as needed to complete the drafting operation.

[0031] In this embodiment, when there is no need to adjust the traction position of the roving yarn during use, start the driving motor 6 so that its output end drives the driving wheel 7 to rotate, and the driven wheels 8 on both sides are driven to rotate synchronously through two synchronous belts 9. The roving yarn is introduced into the device through the traction front roller 2 at the bottom of the frame 1 and the guide roller 4. In the working area formed between the partition 5 and the frame 1, the traction rear roller 3 at the top of the frame 1 further completes the overhead drafting to achieve the required drafting height, and finally passes through the yarn guide 12 and the yarn horn 15 on the slider 14 to achieve the required drafting angle and be guided out;

[0032] When adjusting the traction position of the roving yarn, start the driving motor 10 so that its output end drives the screw 11 to rotate, and then drives the slider 14 to slide along the guide rod 13, so that the roving yarn can be stretched in a variable position on the traction rear roller 3 to ensure the stretching friction effect, that is, the tension stability is guaranteed, and the accidental stretching of the roving yarn is further avoided.

[0033] In this embodiment, if Figure 2 , Figure 3 As shown, the synchronous belt 9 is a V-belt to maintain the transmission stability of the synchronous belt 9.

[0034] In this embodiment, if Figure 1 As shown, there is a yarn gap between the yarn guide 12 and the traction rear roller 3, and the yarn gap is not less than the diameter of the roving yarn.

[0035] In addition, preferably, Figure 1 , Figure 2 , Figure 4 As shown, the part of the yarn guide 12 that cooperates with the traction rear roller 3 is an arc structure, and yarn guide rods 16 are evenly distributed between the arc structures. Several yarn guide rods 16 are rotatably connected to the arc structure. When the coarse yarn passes through the arc structure, the lead-out path angle can be timely adjusted by the arc structure, and the yarn guide rods 16 are used to prevent the coarse yarn from becoming loose, so as to adapt to the guiding and stretching of the coarse yarn at different positions of the traction rear roller 3.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A roving frame overhead anti-accidental drafting feeding device, comprising a frame (1) and a traction front roller (2) and a traction rear roller (3) arranged on the frame (1), wherein a guide roller (4) is arranged on the frame (1) above the traction front roller (2), characterized in that: The roving frame overhead anti-accidental drafting feeding device also includes: A drive assembly, the drive assembly being mounted on the frame (1), the drive assembly being used to drive the traction front roller (2) and the traction rear roller (3) to rotate at the same speed; A partition (5), the partition (5) being installed in the middle of the frame (1) and dividing the interior of the frame (1) into a working area and a protection area; A guide assembly is mounted on the frame (1), and is used to adjust the traction position of the roving yarn on the traction rear roller (3).

2. The overhead anti-accidental drafting and feeding device of a roving frame according to claim 1 is characterized in that: The driving assembly comprises a driving motor (6), a driving wheel (7) and a driven wheel (8); the driving motor (6) is mounted on the frame (1); the driving wheel (7) is mounted on the output end of the driving motor (6); there are two driven wheels (8) which are both rotatably mounted on the frame (1); the two driven wheels (8) are respectively connected to the driving wheel (7) via a synchronous belt (9); and the two driven wheels (8) are respectively coaxially connected to the traction front roller (2) and the traction rear roller (3).

3. The overhead anti-accidental drafting and feeding device of a roving frame according to claim 1 is characterized in that: The guide assembly comprises a second drive motor (10), a lead screw (11) and a yarn guide (12); the second drive motor (10) is mounted on the frame (1); the lead screw (11) is mounted on the output end of the second drive motor (10); a guide rod (13) is mounted between the partition plate (5) and the side wall of the frame (1); a slider (14) is threadedly mounted on the lead screw (11); a yarn passing horn (15) is penetrated by the slider (14); the slider (14) is slidably mounted on the guide rod (13); and the yarn guide (12) is adjustably mounted on the slider (14).

4. The overhead anti-accidental drafting and feeding device of a roving frame according to claim 2 is characterized in that: The diameters of the two driven wheels (8) are kept consistent.

5. The overhead anti-accidental drafting and feeding device of a roving frame according to claim 2 is characterized in that: The synchronous belt (9) is a V-belt.

6. The overhead anti-accidental drafting and feeding device of a roving frame according to claim 3 is characterized in that: A yarn gap is left between the yarn guide (12) and the traction rear roller (3), and the yarn gap is not less than the diameter of the roving yarn.

7. The overhead anti-accidental drafting and feeding device of a roving frame according to claim 3 is characterized in that: The portion of the yarn guide member (12) that cooperates with the traction rear roller (3) is an arc-shaped structure, yarn guide rods (16) are evenly distributed between the arc-shaped structures, and a plurality of the yarn guide rods (16) are rotatably connected to the arc-shaped structure.

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