Vortex spinning device for producing slub yarn

Abstract

The utility model provides a vortex spinning device for producing bunchy yarn. The vortex spinning device comprises a cotton feeding roller, a cotton feeding leather roller matched with the cotton feeding roller, a rear roller, a rear leather roller matched with the rear roller, a middle roller, a middle leather roller matched with the middle roller, a front roller, a front leather roller matched with the front roller, a vortex spindle and a friction yarn storage roller. The cotton feeding leather roller is a special-shaped leather roller with a concave part; the vortex spinning device further comprises a main motor, a first servo motor, a second servo motor, a third servo motor, a fourth servo motor and a fifth servo motor, the main motor is in transmission connection with the front roller, the first servo motor is in transmission connection with the cotton feeding roller, the second servo motor is in transmission connection with the middle roller, and the fourth servo motor is in transmission connection with the fifth servo motor. And the third servo motor is in transmission connection with the rear roller. The vortex spinning device is used for producing slub yarn and has the advantages of being high in production efficiency and low in equipment cost.

Description

Technical Field

[0001] The utility model relates to the field of spinning devices, in particular to a vortex spinning device for producing slub yarn. Background Art

[0002] Slub yarn is a kind of yarn with changing thickness and rough style in the textile field. Slub yarn was first developed in the 1970s and developed in the 1990s. After decades of development, slub yarn has become the most popular yarn fabric on the market, and is widely used in the fields of woven denim fabrics and knitted casual fabrics.

[0003] Traditional slub yarn is produced by ring spinning. The production principle is that on the ring spinning frame, the front roller rotates at a constant speed, while the middle roller and the rear roller rotate at variable speeds to achieve the change of the coarse yarn feed amount, thereby spinning a slub yarn product with varying thickness. Due to the twist structure of ring spinning yarn, the twist on the yarn is easy to transfer from the thick slub to the thin pitch. When the slub ratio reaches more than 3.0 times, problems such as frequent breakage, low efficiency, and low yarn strength will occur.

[0004] Vortex spinning is a new type of spinning method that uses a fixed vortex spinning tube to replace the high-speed rotating spindle or spinning cup for spinning. Vortex spinning is to spin fiber strips directly into cone yarn, eliminating the two processes of roving and winding. The production process is short, the efficiency is high, and the cost is low. Due to the different spinning principles, vortex spun yarn has the characteristics of uniform yarn, less hairiness, good fabric finish, good anti-pilling performance, and good shape retention compared to ring spun yarn. It is widely used in knitting, sweaters, weaving and other fields. However, due to the late development of vortex spinning, the special equipment structure and spinning method, it is difficult to develop and produce products such as slub yarn. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a vortex spinning device for producing slubby yarn, which is used to solve the problem that the existing vortex spinning equipment in the prior art is difficult to spin slubby yarn and the cost of replacing or modifying the equipment is high.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model is implemented by including the following technical solutions.

[0007] The utility model provides a vortex spinning device for producing bamboo yarn. Along the processing direction of the yarn, the vortex spinning device at least includes: a cotton feeding roller and a cotton feeding roller matched therewith, a rear roller and a rear roller matched therewith, a middle roller and a middle roller matched therewith, a front roller and a front roller matched therewith, a vortex spindle and a friction yarn storage roller; the cotton feeding roller is a special-shaped roller formed with a recessed portion; the vortex spinning device also includes a main motor, a first servo motor, a second servo motor, a third servo motor and a fourth servo motor, the main motor is connected to the front roller in a transmission manner, the first servo motor is connected to the cotton feeding roller in a transmission manner, the second servo motor is connected to the rear roller in a transmission manner, the third servo motor is connected to the middle roller in a transmission manner, and the fourth servo motor is connected to the friction yarn storage roller in a transmission manner.

[0008] In one embodiment, the recessed portion of the cotton feeding roller has a depth of 1.2 to 4 mm and a length of 8 to 20 mm.

[0009] In one embodiment, a plurality of guide rollers are further provided upstream of the cotton feeding roller.

[0010] In one embodiment, a winding groove drum and a fifth servo motor are further provided downstream of the friction yarn storage roller, and the fifth servo motor is drivingly connected to the winding groove drum.

[0011] In one embodiment, the vortex spinning device further comprises a yarn drum matched with the winding groove drum.

[0012] In one embodiment, the friction yarn storage roller is in a truncated cone shape, and has the smallest diameter at one end close to the winding drum.

[0013] In one embodiment, a cotton guide is further provided upstream of the cotton feeding roller.

[0014] In one embodiment, the buncher is further provided between the front roller and the middle roller.

[0015] In one embodiment, a yarn clearer is provided between the vortex spinning spindle and the friction yarn storage roller.

[0016] In one embodiment, two recessed portions are formed on the cotton feeding roller, and the two recessed portions are symmetrically arranged.

[0017] In one embodiment, the recessed portion is disposed in the middle of the cotton feeding roller. As described above, the vortex spinning device for producing slub yarn of the utility model has the following beneficial effects:

[0018] By modifying the existing vortex spinning equipment and changing the driving mode and structure of the rollers, the technical solution of vortex spinning slub yarn was realized. The slub yarn formed not only has the effect of less hairiness and good anti-pilling performance of vortex spinning yarn, but also has the rough style of slub yarn. The production efficiency of slub yarn produced by this improved equipment is also greatly improved compared with traditional ring spinning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a vortex spinning device for producing slub yarn in the utility model.

[0020] Figure 2 Shown is a front view of the cotton feeding roller in the utility model.

[0021] Figure 3 Shown is a side view of the cotton feeding roller in the present invention.

[0022] Figure 4 Shown is a top view of the cotton feeding roller in the utility model.

[0023] The symbols in the accompanying drawings are as follows:

[0024] A: whisker A;

[0025] 1, 2, 3 are guide rollers;

[0026] 4 is a guide bar;

[0027] 5 is a cotton feeding roller;

[0028] 6 is the rear roller;

[0029] 7 is the middle roller;

[0030] 8 is the front roller;

[0031] 9 is a cotton feeding roller;

[0032] 10 is a rear leather roller;

[0033] 11 is a clustering device;

[0034] 12 is a middle leather roller;

[0035] 13 is a front leather roller;

[0036] 14 is a vortex spindle;

[0037] 15 is a yarn clearer;

[0038] 16 is a friction yarn storage roller;

[0039] 17 is a winding groove drum;

[0040] 18 is a yarn tube;

[0041] 19 is a recessed portion. DETAILED DESCRIPTION

[0042] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0043] See also Figures 1 to 4 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0044] The vortex spinning device for producing slub yarn provided in the utility model is an improvement on the vortex spinning equipment in the prior art, and the main improvements include the improvement on the transmission control and the improvement on the structure of the cotton feeding roller.

[0045] By using the vortex spinning device for producing slub yarn provided in the present application, efficient and high-quality production of slub yarn can be achieved at a relatively low equipment modification cost in combination with process control.

[0046] like Figure 1 As shown, in the embodiment of the utility model, a specific vortex spinning device for producing slub yarn is provided. Along the processing direction of the yarn, the vortex spinning device at least comprises: a cotton feeding roller 5 and a cotton feeding leather roller 9 matched therewith, a rear roller 6 and a rear leather roller 10 matched therewith, a middle roller 7 and a middle leather roller 12 matched therewith, a front roller 8 and a front leather roller 13 matched therewith, a vortex spindle 14 and a friction yarn storage roller 16; the cotton feeding leather roller 9 is a special-shaped leather roller formed with a concave portion;

[0047] The vortex spinning device also includes a main motor, a first servo motor, a second servo motor, a third servo motor and a fourth servo motor. The main motor is connected to the front roller 8, the first servo motor is connected to the cotton feeding roller 5, the second servo motor is connected to the rear roller 6, the third servo motor is connected to the middle roller 7, and the fourth servo motor is connected to the friction yarn storage roller 16.

[0048] In actual production, the vortex spinning device provided by the utility model has a special-shaped cotton feeding roller, which produces the effect that the sliver fed by the cotton feeding roller 5 and the cotton feeding roller 9 is sometimes not held and sometimes held. When held, the sliver is fed into the downstream through the holding action of the cotton feeding roller 5 and the cotton feeding roller 9, and when not held, the sliver is quickly fed through the recessed part and held by the rear roller 6 and the rear roller 10.

[0049] In a specific embodiment, the recessed portion of the cotton feeding roller 9 has a depth of 1.2 to 4 mm and a length of 8 to 20 mm.

[0050] In a Figure 1 In the specific embodiment shown, a plurality of guide rollers are further provided upstream of the cotton feeding roller 5 .

[0051] In a specific embodiment, a winding groove drum 17 and a fifth servo motor are further provided downstream of the friction yarn storage roller 16 , and the fifth servo motor is transmission-connected to the winding groove drum 17 .

[0052] In a Figure 1 In the specific embodiment shown, the vortex spinning device further includes a yarn drum 18 matched with the winding groove drum 17 .

[0053] In a Figure 1 In the specific embodiment shown, the friction yarn storage roller 16 is in a frustoconical shape, and has the smallest diameter at one end close to the winding drum.

[0054] In a Figure 1 In the specific embodiment shown, a cotton guide 4 is further provided upstream of the cotton feeding roller.

[0055] In a Figure 1 In the specific embodiment shown, the buncher 11 is further provided between the front roller and the middle roller.

[0056] In a Figure 1 In the specific embodiment shown, a yarn clearer 15 is provided between the vortex spinning spindle and the friction yarn storage roller.

[0057] In a Figure 2 In the specific embodiment shown, two recessed portions 19 are formed on the cotton feeding roller, and the two recessed portions 19 are symmetrically arranged.

[0058] In a Figure 2 In the specific embodiment shown, the recessed portion 19 is provided at the middle position of the cotton feeding roller.

[0059] like Figure 11, 2, and 3 are guide rollers; their function is to guide the sliver A to feed it into the vortex spinning guide along the set path and then enter the cotton feeding roller. The number and position of the guide rollers can be determined according to the specific production conditions. Generally, there are 3 guide rollers in a vortex spinning equipment.

[0060] like Figure 1 4 is a guide, which guides the sliver A to be fed into the feeding roller according to the set position. It is generally set upstream of the feeding roller. In the vortex spinning device of the present application, the guide is arranged close to the concave part of the feeding roller to guide the feeding roller to be fed into the concave part.

[0061] like Figure 1 5 is a feeding roller, which is matched with the feeding roller 9 and is used to hold the cotton strip A. The feeding roller is provided with a separate transmission device, and the feeding roller 9 moves passively.

[0062] like Figure 1 6 is the back roller, which is Figure 1 The middle and rear leather rollers 10 are matched and used to hold the strand A; the rear roller is provided with a separate transmission device to drive it to roll, and the rear leather roller 10 moves passively.

[0063] like Figure 1 The 7 in the figure is the middle roller. Figure 1 The middle roller 12 is matched and used to hold the whisker A; the middle roller is provided with a separate transmission device to drive it to roll, and the middle roller 12 moves passively.

[0064] like Figure 1 The middle 8 is the front roller, which is Figure 1 The front roller 13 is matched and arranged to hold the whisker A; the front roller is provided with a separate transmission device to drive it to roll, and the front roller 13 moves passively.

[0065] Figure 1 11 is a bundler, which is used to collect and narrow the fiber bundles, and collect the fiber bundles with a width of 8 to 20 mm into 3 to 6 mm fiber bundles.

[0066] Figure 1 Reference numeral 14 denotes a vortex spindle, which is a signature component of vortex spinning. The fiber bundle is processed into yarn by the air pressure and air flow of the vortex spindle.

[0067] Figure 1 15 is a yarn clearer; specifically, it can be an electronic yarn clearer, which monitors and determines the real-time change of yarn diameter in real time through optical signals or electrical signals. If the yarn diameter is abnormal, the yarn is cut off to remove the abnormal yarn.

[0068] 16 is a friction yarn storage roller; it is used to store yarn. Since the upstream process of the friction yarn storage roller 16 is constant speed, and the winding speed of the groove drum 17 is variable, the friction yarn storage roller 16 is set in combination with different servo motors for each process to maintain the connection between the upstream process and the downstream process, thereby ensuring that the spinning production can continue.

[0069] Figure 1 17 is a grooved drum, which is matched with the yarn drum 18 and is used to allow the slub yarn formed by vortex spinning to be wound around the yarn drum.

[0070] In adopting Figure 1 When the vortex spinning device shown is used for continuous production of bamboo yarn, a drafting multiple of 1.2 to 4 times is formed between the cotton feeding roller 5 and the back roller 6, and the setting of this drafting multiple can be achieved by adjusting the output speed of the first servo motor and the second servo motor. When the cotton feeding roller 9 and the cotton feeding roller 5 hold the whisker, there is a draft between the cotton feeding roller 5 and the back roller 6, and the fed whisker A is normally drafted. At this time, the spun yarn is a thinner pitch segment; when the cotton feeding roller 9 and the cotton feeding roller 5 are not held, the drafting between the cotton feeding roller 5 and the back roller 6 fails, and the whisker A passes through the groove on the cotton feeding roller and is fed at the speed of the back roller 6. At this time, the spun yarn is a thicker bamboo segment.

[0071] The slub ratio of the vortex-spun slub yarn of the above device is adjusted by adjusting the drafting multiple between the feed roller 5 and the back roller 6. For example, when the drafting multiple between the feed roller 5 and the back roller 6 is 3.0, the vortex-spun slub ratio is 3.0.

[0072] The vortex spun slub yarn spun by the above device, the slub length and pitch length are adjusted by adjusting the profile structure of the cotton feeding roller 9 or adjusting the quantitative amount of the feeding sliver A. After passing through the groove, the speed of the rear roller 6 is fed, and at this time, the spun yarn is a thicker slub segment.

[0073] The sliver A described in the embodiment of the present application is prepared through the processes of cleaning, combing and drawing. The basis weight of the sliver A is 12.0-30.0 g / 5 m.

[0074] The following specific production examples are used to illustrate the technical solution of this application. Figure 1 The specific vortex spinning device shown is used to demonstrate in detail the process of continuously and efficiently producing slub yarn.

[0075] The vortex spinning device for producing slub yarn disclosed by the utility model is used to spin 100% viscose component, with a count of 32S / 1, a slub ratio of 3.5 times, a section length of 2300mm and a section distance of 5300mm.

[0076] Preparation of sliver A: 100% viscose fiber is processed through the processes of cleaning, carding and drawing to obtain sliver A, which has uniform dryness and a basis weight of 18.0 g / 5 m.

[0077] Vortex spinning process: In the vortex spinning device of the utility model, the sliver A is fed from the guide rollers 1, 2, and 3 into the sliver guide 4, and then passes through the cotton feeding roller 5, the rear roller 6, the middle roller 7, the front roller 8 and the vortex spinning spindle 14, and finally passes through the yarn clearer 14 and is wound on the yarn tube 18 to obtain the vortex spun slub yarn.

[0078] The specific spinning process parameters are: the spacing of the front middle roller is 41*45mm, the distance from the spindle to the front roller is 20mm, the nozzle air pressure of the vortex spindle 14 is 0.5MPa, the spindle specification is 1.1mm, the speed is 360m / min (the linear speed of the front roller), the total drafting multiple is 196 times, the drafting of the cotton feeding roller and the rear roller is 3.5 times, the main drafting is 64 times (the drafting multiple between the front roller and the middle roller), and the spinning tension is 120cn.

[0079] Use as Figure 1 The vortex spinning device shown in the figure is combined with the above process to obtain a rough style of vortex spinning slub yarn, with a slub ratio of 3.5 times, and the length and pitch of the slub are consistent with the design requirements. The production is stable, with few broken ends and high efficiency, which solves the problems of traditional ring spinning slub yarn with a ratio of 3.0, many broken ends and low efficiency.

[0080] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0081] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A vortex spinning device for producing slub yarn, characterized in that: Along the processing direction of the yarn, the vortex spinning device at least includes: a cotton feeding roller and a cotton feeding leather roller matched therewith, a rear roller and a rear leather roller matched therewith, a middle roller and a middle leather roller matched therewith, a front roller and a front leather roller matched therewith, a vortex spinning spindle and a friction yarn storage roller; the cotton feeding leather roller is a special-shaped leather roller formed with a concave portion; The vortex spinning device also includes a main motor, a first servo motor, a second servo motor, a third servo motor and a fourth servo motor. The main motor is connected to the front roller, the first servo motor is connected to the cotton feeding roller, the second servo motor is connected to the rear roller, the third servo motor is connected to the middle roller, and the fourth servo motor is connected to the friction yarn storage roller.

2. The vortex spinning device according to claim 1, characterized in that: The depth of the concave portion of the cotton feeding roller is 1.2-4 mm, and the length is 8-20 mm.

3. The vortex spinning device according to claim 1, characterized in that: A plurality of guide rollers are also arranged upstream of the cotton feeding roller.

4. The vortex spinning device according to claim 1, characterized in that: A winding groove drum and a fifth servo motor are also provided downstream of the friction yarn storage roller, and the fifth servo motor is drivingly connected to the winding groove drum.

5. The vortex spinning device according to claim 4, characterized in that: The vortex spinning device also includes a yarn drum matched with the winding groove drum.

6. The vortex spinning device according to claim 4, characterized in that: The friction yarn storage roller is in a truncated cone shape, and has the smallest diameter at one end close to the winding groove drum.

7. The vortex spinning device according to claim 1, characterized in that: A cotton guide is also provided upstream of the cotton feeding roller.

8. The vortex spinning device according to claim 1, characterized in that: A buncher is further provided between the front roller and the middle roller; and / or a yarn clearer is provided between the vortex spindle and the friction yarn storage roller.

9. The vortex spinning device according to claim 1, characterized in that: Two recessed portions are formed on the cotton feeding roller, and the two recessed portions are symmetrically arranged.

10. The vortex spinning device according to claim 1, characterized in that: The recessed portion is arranged at a middle position of the cotton feeding roller.

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