Method for improving production efficiency of doubling machine

Abstract

A method for improving the production efficiency of a doubling machine, comprising: moving downward and mounting a doubling machine yarn guiding device (3) located between a grooved drum (1) and a detection head yarn feeder (2); yarns passing through the detection head yarn feeder (2), being wound on the grooved drum (1), and entering a doubling pipe (5) through the grooved drum (1), and the yarns being doubled at the doubling pipe (5); and increasing the coating length and tension of the yarns on the doubling machine grooved drum (1) to enhance the control of the grooved drum (1) on the yarns, and reducing the vertical included angle of the yarns at a yarn guide rod (32) to reduce the yarn swinging amplitude.

Description

Methods for improving the production efficiency of paralleling machines Technical Field

[0001] The invention belongs to the technical field of spinning machinery, and particularly relates to a method for improving the production efficiency of a doubling machine. Background Art

[0002] Because single yarns cannot meet the requirements of many products, twisting must be used to produce plied yarns, and doubling helps meet the twist requirements of yarns. The doubling process is a preparatory step in the production of twisted or plied yarns. Two or more yarns are then twisted together to obtain yarns with higher strength, more uniformity, special color combinations, and special structures.

[0003] As an essential piece of textile yarn production equipment, doubling machines are widely used in major spinning mills. In production practice, the doubling speed of the VERSA-PT doubling machine generally cannot exceed 350 meters per minute. Otherwise, yarn skipping and splitting can easily occur, leading to yarn breakage and poor doubling and winding. This increases worker labor intensity and reduces production efficiency, seriously affecting yarn quality and production efficiency, and hindering the development of high-quality, high-efficiency, and high-yield spinning mills.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a method for improving the production efficiency of a doubling machine, by increasing the covering length and tension of the yarn on the doubling machine groove drum to enhance the control of the groove drum over the yarn, and reducing the angle between the yarn and the vertical line at the yarn guide rod to reduce the yarn swing amplitude, thereby solving the problem that the quality of the doubling process and the production efficiency of the VERSA-PT type doubling machine are seriously affected by yarn skipping, yarn bifurcation, poor doubling and winding during the production process.

[0006] To achieve the above objectives, the technical solutions used in the present invention are:

[0007] Methods to improve the production efficiency of the line-joining machine include:

[0008] Move down and install the yarn guide device between the groove drum and the detection yarn mouth of the winding machine;

[0009] The yarn passes through the yarn mouth of the detection head and is wound around the grooved drum, and then enters the doubling tube through the grooved drum, where the yarn is doubling. The control of the grooved drum on the yarn is enhanced by increasing the covering length and tension of the yarn on the doubling machine grooved drum, and the vertical angle of the yarn at the yarn guide rod is reduced to reduce the yarn swing amplitude.

[0010] Furthermore, after removing the original yarn guide device on the frame between the groove drum and the detection yarn mouth, the yarn guide device is moved down and reinstalled.

[0011] Furthermore, the winding machine includes: a frame, a grooved drum, a detection yarn mouth, a yarn guiding device, and a winding tube. The grooved drum, the detection yarn mouth, the yarn guiding device, and the winding tube are respectively fixed on the frame, the winding tube and the detection yarn mouth are located on the outside, the grooved drum is located on the inside of the winding tube, and the yarn guiding device is located on the inside of the detection yarn mouth; the yarn guiding device includes: a yarn guide rod rack and a yarn guide rod, the two yarn guide rod racks are respectively fixed on the frame, the yarn guide rod racks are provided with mounting holes, and the two ends of the yarn guide rod are respectively installed in the mounting holes.

[0012] Furthermore, the length of the yarn guide rod is 155 mm, and the end portion is polished.

[0013] The technical effects of the present invention include:

[0014] By increasing the yarn wrapping length and tension on the doubling machine groove drum to enhance the control of the groove drum over the yarn, and reducing the angle α between the yarn and the vertical line at the yarn guide rod to reduce the yarn swing amplitude, the problem of yarn skipping, yarn bifurcation, poor doubling and other problems that seriously affect the quality of the doubling process and production efficiency of the VERSA-PT doubling machine during the production process is solved.

[0015] The present invention is simple to operate, easy to assemble, and requires no new parts. After production practice, the speed of the line-joining machine is increased from no more than 350 meters per minute to within 700 meters per minute. Under the premise of ensuring the product quality of the line-joining process, the production efficiency of the line-joining process is significantly improved, and the invention has broad application prospects.

[0016] Summary of the Figures

[0017] FIG1 is a schematic diagram of a yarn guide device of a VERSA-PT type doubling machine installed downward in the present invention.

[0018] Preferred embodiments of the present invention

[0019] The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce the invention.

[0020] As shown in FIG1 , it is a schematic diagram of the yarn guide device of the VERSA-PT type doubling machine installed downward in the present invention.

[0021] The method to improve the production efficiency of the line-joining machine is as follows:

[0022] Step 1: Lower and install the yarn guide device 3 (including the yarn guide rod frame 31 and the yarn guide rod 32) located between the groove drum 1 and the detection head yarn mouth 2 of the winding machine;

[0023] The winding machine includes: a frame, a grooved drum 1, a detection yarn mouth 2, a yarn guide device 3, and a winding tube 5. The grooved drum 1, the detection yarn mouth 2, the yarn guide device 3, and the winding tube 5 are respectively fixed on the frame, the detection yarn mouth 2 and the winding tube 5 are located on the outside, the grooved drum 1 is located on the inside of the winding tube 5, and the yarn guide device 3 is located on the inside of the detection yarn mouth 2.

[0024] After removing the original yarn guide device 3 on the frame between the groove drum 1 and the detection yarn mouth 2, the yarn guide device 3 is moved down and reinstalled.

[0025] The yarn guiding device 3 includes a yarn guiding rod frame 31 and a yarn guiding rod 32. The two yarn guiding rod frames 31 are fixed on the frame respectively. The yarn guiding rod frames 31 are provided with mounting holes, and both ends of the yarn guiding rod 32 are respectively mounted in the mounting holes.

[0026] The yarn guide rod frame 31 has two mounting holes with a hole spacing of 16 mm. The yarn guide rod 32 is 155 mm long and the end portion needs to be polished.

[0027] Step 2: The yarn 4 passes through the yarn mouth 2 of the detection head and is wound around the groove drum 1, and enters the doubling tube 5 through the groove drum 1, where the yarn 4 is doubling. The control of the groove drum 1 over the yarn 4 is enhanced by increasing the covering length and tension of the yarn 4 on the doubling machine groove drum 1, and the vertical angle α of the yarn 4 at the yarn guide rod 32 is reduced to reduce the swing amplitude of the yarn 4.

[0028] During the doubling process of the yarn at the doubling tube 5, yarn breakage and poor winding caused by yarn jumping and bifurcation are prevented, thereby achieving the purpose of improving the production efficiency of the doubling machine.

[0029] Example 1:

[0030] Take the production of pure cashmere 26-count double yarn on the VERSA-PT doubler as an example.

[0031] The original yarn guide 3, located between the grooved drum 1 and the detection yarn nozzle 2, was removed from the machine frame and relocated below the frame. Using the doubling machine with the newly installed yarn guide 3, the doubling speed was increased from 350 m / min to 700 m / min to produce 26-count pure velvet double yarn, with a fixed length of 13,000 meters and a tension of 11. The doubling package was well-formed, with no skipping or splitting of yarns. The daily output per spindle increased by 38.8 kg (350*60*24 ÷ 13 ÷ 1000 = 38.8).

[0032] Example 2:

[0033] Take the production of pure cashmere 68-count three-ply yarn on the VERSA-PT doubling machine as an example.

[0034] A doubling machine with yarn guide device 3 installed was used to produce 68-count pure cashmere three-ply yarn. The doubling speed was increased from 300 m / min to 500 m / min, with a fixed length of 23,000 m and a tension of 7. The doubling package was well formed, with no yarn skipping or splitting. The daily output per spindle increased by 12.7 kg (200*60*24 ÷ 22.67 ÷ 1000 = 12.7).

[0035] The terms used in this invention are descriptive and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the technical solution, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims. Industrial Applicability

[0036] The present invention enhances the control of the groove drum over the yarn by increasing the wrapping length and tension of the yarn on the groove drum of the doubling machine, and reduces the angle between the yarn and the vertical line at the yarn guide rod to reduce the yarn swing amplitude, thereby solving the problem that the quality of the doubling process and production efficiency of the VERSA-PT type doubling machine are seriously affected by yarn skipping, yarn bifurcation, poor doubling and winding during the production process.

Claims

1. A method for improving the production efficiency of a doubling machine, characterized in that: include: The yarn guide device of the doubling machine located between the groove drum and the detection head yarn mouth is moved downward and installed; The yarn passes through the yarn mouth of the detection head and is wound around the groove drum, and enters the doubling tube through the groove drum, where the yarn is doubling; the control of the groove drum on the yarn is enhanced by increasing the covering length and tension of the yarn on the doubling machine groove drum, and the vertical angle of the yarn at the yarn guide rod is reduced to reduce the yarn swing amplitude.

2. The method for improving the production efficiency of a doubling machine according to claim 1, characterized in that: After removing the original yarn guide device on the frame between the groove drum and the detection head yarn mouth of the equipment, move the yarn guide device downward and reinstall it.

3. The method for improving the production efficiency of a doubling machine according to claim 1, characterized in that: The doubling machine comprises: a frame, a groove drum, a detection head yarn mouth, a yarn guiding device, and a doubling tube. The groove drum, the detection head yarn mouth, the yarn guiding device, and the doubling tube are respectively fixed on the frame, the doubling tube and the detection head yarn mouth are located on the outside, the groove drum is located on the inside of the doubling tube, and the yarn guiding device is located on the inside of the detection head yarn mouth; the yarn guiding device comprises: a yarn guide rod frame and a yarn guide rod, the two yarn guide rod frames are respectively fixed on the frame, the yarn guide rod frames are provided with mounting holes, and the two ends of the yarn guide rod are respectively installed in the mounting holes.

4. The method for improving the production efficiency of a doubling machine according to claim 1, characterized in that: The length of the yarn guide rod is 155mm and the end is polished.

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