Three-roller drafting structure of spinning frame

Abstract

The utility model discloses a three-roller drafting structure of a spinning frame, which comprises a mounting seat, three groups of rear rollers, three groups of middle rollers and three groups of front rollers are sequentially arranged on the mounting seat along the roving feeding direction, the rear rollers and the front rollers are movably mounted in the mounting seat through adjusting seats, the middle rollers are mounted on the mounting seat through fixing seats, and the front rollers are movably mounted on the mounting seat through fixing seats. Comprising two sets of side rear rollers and a middle rear roller, the middle rear roller is installed between the two sets of side rear rollers, the side rear rollers and the middle rear roller operate through independent driving devices, and leather rollers are correspondingly arranged above the rear roller, the middle roller and the front roller. The device has the advantages that the relative distance between the rollers can be adjusted, meanwhile, different feeding speeds of three channels of the rear roller can be adjusted, on-line control over the fiber component proportion and the yarn density is achieved, and meanwhile the detachable structure facilitates follow-up maintenance and replacement of roller structures on the three channels.

Description

Technical Field

[0001] The utility model relates to the technical field of roving roller drafting, in particular to a three-roller drafting structure of a spinning frame. Background Art

[0002] Yarn is a collection of slender fibers with specific mechanical properties formed by arranging textile fibers in a certain orientation and twisting or entanglement of fibers. It is an important intermediate product in the production and processing of textiles. The scientific connotation of studying yarn forming processing is to take fiber materials as the object, and the comprehensive optimization of the function, style and comfort of textiles as the goal, to regulate the structure, appearance and performance of yarn, and to provide effective means for the technical innovation, functional innovation and value innovation of textiles.

[0003] In ordinary spinning machine roller drafting, the rear roller is driven by a servo motor, and the three channels of the rear roller can only be fed at the same speed. It is impossible to achieve different drafting ratios of coarse yarn by different feeding speeds, and then merge and intersect to form yarn through twisting. At the same time, the relative distance between the rollers is difficult to adjust. Utility Model Content

[0004] The utility model aims to provide a three-roller drafting structure of a spinning frame, which can realize the adjustment of the relative distance between the rollers and the adjustment of different feeding speeds of three channels of the rear rollers.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A three-roller drafting structure of a roving machine, characterized in that it includes a mounting seat, on which a rear roller, a middle roller and a front roller are sequentially arranged along the coarse yarn feeding direction, the rear roller and the front roller are movably mounted in the mounting seat through an adjusting seat, the middle roller is mounted on the mounting seat through a fixed seat, and there are three groups of rear rollers in total, including two groups of side rear rollers and a middle rear roller, the middle rear roller is installed between the two groups of side rear rollers, the side rear rollers and the middle rear rollers are both operated by independent driving devices, and leather rollers are correspondingly arranged above the rear roller, the middle roller and the front roller.

[0007] Preferably, a rotating screw is provided through the center of the bottom of the adjustment seat, and the two ends of the rotating screw are rotatably installed through the bearing seat and the fixed seat and the mounting seat respectively. The rotating screw is driven by the transmission gear and the adjusting motor, and the adjusting motor is fixedly installed on both sides of the mounting seat respectively.

[0008] Preferably, adjusting wheels are provided on both sides of the adjusting seat, and the bottom of the adjusting seat is movably arranged relative to the mounting seat through the adjusting wheels.

[0009] Preferably, two groups of guide rods are symmetrically and movably provided on both sides of the bottom of the adjustment seat.

[0010] Preferably, the center rear roller limiting sleeve is arranged on the main rotating shaft, and the two ends of the main rotating shaft are rotatably installed on the upper inner side of the adjustment seat, and the two groups of side rear rollers are movably sleeved on both sides of the center rear roller.

[0011] Preferably, a first transmission wheel is fixedly provided on one side of the main shaft, and a second transmission wheel is fixedly provided on the outer sides of the two sets of side rear rollers, and the first transmission wheel and the second transmission wheel are both connected to an independent driving device through a transmission belt.

[0012] Preferably, the main shaft is provided with two groups of annular stops at both ends of the middle rear roller, and the main shaft is fixedly provided with two groups of annular stops on the outer sides of the two groups of second transmission wheels. The two transmission wheels and the side rear rollers are relatively rotatably installed on the main shaft, and the annular stops are fixedly connected to the outside of the main shaft by bolts.

[0013] Preferably, the inner ring of the middle rear roller is provided with a plurality of key slots, and the middle part of the main shaft is correspondingly provided with a plurality of limit keys, and the limit keys are clamped in the key slots.

[0014] In summary, the utility model has the following beneficial effects: it can realize the adjustment of the relative distance between each roller, and at the same time can realize the adjustment of different feeding speeds of the three channels of the rear roller, realize online control of the fiber component ratio and yarn density, and at the same time, the detachable structure facilitates the subsequent maintenance and replacement of the roller structure on the three channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a side structural schematic diagram of the utility model;

[0017] Figure 3 yes Figure 2 Schematic diagram of the structure at A in the middle. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figures 1 to 3 A three-roller drafting structure of a roving frame is shown, comprising a mounting seat 1, on which a rear roller, a middle roller 2 and a front roller 3 are sequentially arranged along the roving feeding direction, the rear roller and the front roller 3 are movably mounted in the mounting seat 1 through an adjusting seat 4, the middle roller 2 is mounted on the mounting seat 1 through a fixed seat 5, and there are three groups of rear rollers, including two groups of side rear rollers 6 and a middle rear roller 7, the middle rear roller 7 is installed between the two groups of side rear rollers 6, the side rear rollers 6 and the middle rear roller 7 are both operated by an independent driving device 8, and leather rollers 9 are correspondingly arranged above the rear roller, the middle roller 2 and the front roller 3.

[0021] A rotating screw 10 is provided through the center of the bottom of the adjusting seat 4. The outer side of the rotating screw 10 is connected to the inside of the adjusting seat 4 through a threaded transmission. The two ends of the rotating screw 10 are respectively rotatably installed through a bearing seat and a fixed seat 5 and a mounting seat 1. The rotating screw 10 is driven by a transmission gear 11 and an adjusting motor 12, and the adjusting motor 12 is fixedly installed on both sides of the mounting seat 1.

[0022] Adjustment wheels 13 are arranged on both sides of the adjustment seat 4 , and the bottom of the adjustment seat 4 is movably arranged relative to the mounting seat 1 through the adjustment wheels 13 , and the bottom of the adjustment seat 4 is movably arranged on the mounting seat 1 through the adjustment wheels 4 .

[0023] Two groups of guide rods 14 are symmetrically arranged on both sides of the bottom of the adjustment seat 4 so as to penetrate through the two groups of guide rods 14 . Under the driving of the rotating screw, the adjustment seat 4 can move smoothly through the two groups of guide rods 14 .

[0024] The middle rear roller 7 is limitedly sleeved on the main rotating shaft 15, and both ends of the main rotating shaft 15 are rotatably installed on the upper inner side of the adjusting seat 4. The two groups of side rear rollers 6 are movably sleeved on both sides of the middle rear roller 7, and the two groups of side rear rollers 6 are nested on the main rotating shaft 15, thereby realizing the independent setting of the three groups of rear rollers.

[0025] A first transmission wheel 16 is fixedly provided on one side of the main shaft 15, and a second transmission wheel 17 is fixedly provided on the outer sides of the two sets of side rear rollers 6. The first transmission wheel 16 and the second transmission wheel 17 are both connected to the independent driving device 8 through a transmission belt. The independent driving device 8 can realize different feeding speed adjustment of the three channels of the rear rollers, which are relatively independent of each other and will not interfere with each other.

[0026] The main rotating shaft 15 is provided with two groups of annular blocks 18 at both ends of the middle rear roller 7. The main rotating shaft 15 is fixedly provided with two groups of annular blocks 18 on the outer sides of the two groups of second transmission wheels 17. The two transmission wheels and the side rear rollers 6 are relatively rotatably installed on the main rotating shaft 15. The annular blocks 18 are fixedly connected to the outside of the main rotating shaft 15 by bolts 19, and the limiting activities of the three groups of rear rollers are realized by the annular blocks 18.

[0027] The inner ring of the middle rear roller 7 is provided with multiple groups of key grooves 20, and the middle part of the main rotating shaft 15 is correspondingly provided with multiple groups of limit keys 21. The limit keys 21 are clamped in the key grooves 20. The middle rear roller 7 realizes the synchronous axial rotation of the middle rear roller 7 and the main rotating shaft 15 through the clamping of the limit keys 21 and the key grooves 20, so that the feeding speed of the middle rear roller 7 is independently controlled through the first transmission wheel 16.

[0028] The utility model can adjust the relative distances between the rollers and adjust different feeding speeds of the three channels of the rear rollers, thereby realizing online control of the fiber component ratio and the yarn density. Meanwhile, the detachable structure facilitates the subsequent maintenance and replacement of the roller structures on the three channels.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A three-roller drafting structure of a spinning frame, characterized in that: It includes a mounting seat, on which a rear roller, a middle roller and a front roller are sequentially arranged along the coarse yarn feeding direction. The rear roller and the front roller are movably installed in the mounting seat through an adjusting seat, and the middle roller is installed on the mounting seat through a fixed seat. There are three groups of rear rollers in total, including two groups of side rear rollers and a middle rear roller. The middle rear roller is installed between the two groups of side rear rollers. The side rear rollers and the middle rear rollers are both operated by independent driving devices, and leather rollers are correspondingly arranged above the rear roller, the middle roller and the front roller.

2. The three-roller drafting structure of a spinning frame according to claim 1, characterized in that: A rotating screw is provided through the center of the bottom of the adjustment seat, and the two ends of the rotating screw are rotatably installed through the bearing seat and the fixed seat and the mounting seat respectively. The rotating screw is driven by the transmission gear and the adjustment motor, and the adjustment motor is fixedly installed on both sides of the mounting seat respectively.

3. The three-roller drafting structure of a spinning frame according to claim 2, characterized in that: Adjustment wheels are arranged on both sides of the adjustment seat, and the bottom of the adjustment seat is movably arranged relative to the mounting seat through the adjustment wheels.

4. The three-roller drafting structure of a spinning frame according to claim 2, characterized in that: Two groups of guide rods are symmetrically and movably arranged on both sides of the bottom of the adjustment seat.

5. The three-roller drafting structure of a spinning frame according to claim 1, characterized in that: The middle rear roller limiting sleeve is arranged on the main rotating shaft, and the two ends of the main rotating shaft are rotatably installed on the upper inner side of the adjustment seat, and the two groups of side rear rollers are movably sleeved on both sides of the middle rear roller.

6. A three-roller drafting structure for a spinning frame according to claim 5, characterized in that: A first transmission wheel is fixedly arranged on one side of the main shaft, and a second transmission wheel is fixedly arranged on the outer sides of the two sets of side rear rollers. The first transmission wheel and the second transmission wheel are both connected to an independent driving device through a transmission belt.

7. The three-roller drafting structure of a spinning frame according to claim 6, characterized in that: The main shaft is provided with two groups of annular blocks at both ends of the middle rear roller, and the main shaft is fixedly provided with two groups of annular blocks on the outer sides of the two groups of second transmission wheels. The two transmission wheels and the side rear rollers are relatively rotatably installed on the main shaft, and the annular blocks are fixedly connected to the outside of the main shaft by bolts.

8. The three-roller drafting structure of a spinning frame according to claim 5, characterized in that: The inner ring of the middle rear roller is provided with a plurality of key slots, and the middle part of the main shaft is correspondingly provided with a plurality of limit keys, and the limit keys are clamped in the key slots.

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