Unwinding device for core-spun yarn production and use method thereof

Abstract

The present invention belongs to the field of equipment for handling yarns, and specifically relates to equipment for unfolding or releasing yarn materials, and more particularly to an unwinding device for core-spun yarn production and a method for using the same, wherein the unwinding device for core-spun yarn production comprises: a support body; an unwinding assembly; and a wire guide. The unwinding assembly comprises: a reel disposed on the support body; and an elastic unwinding member disposed on the support body. By providing the elastic unwinding member, the thickness fluctuations of the core-spun yarn can be adapted to in real time during the unwinding process. At the same time, when the core-spun yarn is locally thickened due to elastic deformation or when the yarn joint is being unwound, the problem of the core-spun yarn being rigidly clamped and stuck in the related art can be avoided. When the core-spun yarn returns to its original shape, the elastic unwinding member restores its deformation, ensuring the stability of the unwinding yarn path.

Description

Technical Field

[0001] The present invention belongs to the field of equipment for transporting yarns, and in particular relates to equipment for unfolding or releasing yarn materials, and in particular to an unwinding device for core-spun yarn production and a use method thereof. Background Art

[0002] In the production process of core-spun yarn, the unwinding process is a key link that affects yarn quality and production efficiency.

[0003] Unwinding equipment commonly used in related technologies uses a rigid yarn guide structure. When unwinding highly elastic core-spun yarn (i.e., the core yarn is a highly elastic filament, such as spandex), stress concentration (generated during the core yarn's rebound) can easily occur during the unwinding process, leading to entanglement and jamming between yarn layers. In particular, when the bobbin rotates at high speed during unwinding, the fixed-gap unwinding disc cannot effectively adapt to fluctuations in the core yarn's thickness. This often causes the yarn to become trapped in the gap and be squeezed and deformed by mechanical components, even leading to yarn breakage in severe cases.

[0004] Therefore, how to prevent high-elasticity core-spun yarn from breaking during unwinding is a technical problem that needs to be solved urgently.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the Invention

[0006] The embodiments of the present disclosure at least provide an unwinding device for producing core-spun yarn and a method for using the same.

[0007] In a first aspect, an embodiment of the present disclosure provides an unwinding device for producing core-spun yarn, comprising:

[0008] bracket body;

[0009] an unwinding assembly, which is arranged on the support body and is used to unwind the core-spun yarn;

[0010] A guide wire plate is provided on the side of the support body and is used to guide and deliver the unwound core-spun yarn;

[0011] Wherein, the unwinding assembly comprises:

[0012] a reel-out drum, which is arranged on the support body;

[0013] an elastic unwinding member, which is arranged on the bracket body;

[0014] During unwinding, the core-spun yarn is wound onto the unwinding drum by external force, and the thread end is inserted into the elastic unwinding member. The core-spun yarn is then pulled out from the wire outlet of the wire plate by the external winding drum for winding, thereby completing the unwinding of the core-spun yarn.

[0015] In an optional embodiment, the elastic unwinding member includes:

[0016] a bottom plate, which is arranged on the bracket body;

[0017] a first unwinding shaft, which is arranged on the bottom plate;

[0018] a first unwinding disc, which is sleeved on the first unwinding shaft and disposed close to the bottom plate;

[0019] A squeeze disk is sleeved on the first unwinding shaft and elastically connected to the top of the first unwinding shaft through a return spring. The squeeze disk is close to the first unwinding disk under the action of the return spring and forms a gap with the first unwinding disk for inserting the thread end of the core-spun yarn.

[0020] In an optional embodiment, the height of the gap between the first unwinding disc and the squeezing disc is H1;

[0021] The diameter of the core-spun yarn is H2;

[0022] Wherein, H1<H2, and the units of H1 and H2 are mm.

[0023] In an optional embodiment, the first unwinding reel comprises:

[0024] The first disc body;

[0025] a plurality of first arc-shaped portions, wherein the plurality of first arc-shaped portions are arranged along the circumference of the first disk body;

[0026] During unwinding, the core-spun yarn pulls the first unwinding disk to rotate, thereby driving the first arc-shaped portion to rotate around the first unwinding axis to form an airflow to dissipate heat from the core-spun yarn.

[0027] In an optional embodiment, the elastic unwinding member further comprises:

[0028] a second unwinding shaft, which is arranged on the bottom plate;

[0029] The second unwinding disc is sleeved on the second unwinding shaft and is arranged close to the bottom plate.

[0030] In an optional embodiment, the second unwinding disk includes:

[0031] The second disc body;

[0032] a plurality of second arc-shaped portions, wherein the plurality of second arc-shaped portions are arranged along the circumference of the second disk body;

[0033] During unwinding, the core-spun yarn pulls the second unwinding disk to rotate, thereby driving the second arc-shaped portion to rotate around the second unwinding axis to form an airflow to dissipate heat from the core-spun yarn.

[0034] In an optional embodiment, the elastic unwinding member further comprises:

[0035] guide shaft;

[0036] The guide shaft is arranged on the bottom plate and is located between the first unwinding shaft and the second unwinding shaft;

[0037] Wherein, the axes of the first unwinding shaft, the second unwinding shaft and the guide shaft are parallel to each other.

[0038] In an optional embodiment, the bottom plate is provided with an adjustment slot;

[0039] The first unwinding shaft and the second unwinding shaft pass through the corresponding adjustment slots and are fixed to the base plate via nuts.

[0040] In an optional embodiment, the number of the unwinding components is multiple;

[0041] The plurality of unwinding assemblies are arranged in an array along the height direction and the length direction of the bracket body;

[0042] There are multiple wire guides.

[0043] Each of the conductor plates is provided with a plurality of conductor outlets.

[0044] In a second aspect, the present disclosure also provides a method for using the unwinding device for producing core-spun yarn as described above, the method comprising:

[0045] Put the yarn roll on the unwinding drum;

[0046] Insert the core-spun yarn end into the elastic unwinding piece through external force and pull it out from the outlet of the wire guide plate;

[0047] The outer take-up drum pulls the core yarn and unwinds it through the elastic unwinding assembly.

[0048] The beneficial effect of the present invention is that the unwinding equipment for core-spun yarn production can adapt to the thickness fluctuation of the core-spun yarn in real time during the unwinding process by arranging an elastic unwinding part. At the same time, when the core-spun yarn is locally thickened due to elastic deformation or the yarn joint is being unwound, the problem of the core-spun yarn being rigidly clamped and stuck in the related technology can be avoided. When the core-spun yarn returns to its original shape, the elastic unwinding part restores its deformation to ensure the stability of the unwinding yarn path.

[0049] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 A schematic structural diagram of an unwinding device for producing core-spun yarn provided in an embodiment of the present disclosure;

[0053] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0054] Figure 3 A schematic structural diagram of an elastic unwinding member provided in an embodiment of the present disclosure;

[0055] Figure 4 A top view of an elastic unwinding member provided in an embodiment of the present disclosure;

[0056] Figure 5 A cross-sectional view of an elastic unwinding member provided in an embodiment of the present disclosure;

[0057] Figure 6 A cross-sectional view of the elastic unwinding member provided in another embodiment of the present disclosure;

[0058] Figure 7 A flow chart of a method for using an unwinding device for producing core-spun yarn provided in an embodiment of the present disclosure.

[0059] In the figure: 100, bracket body; 200, unwinding assembly; 210, unwinding drum; 220, elastic unwinding member; 221, bottom plate; 222, first unwinding shaft; 2221, return spring; 223, first unwinding disk; 2231, first disk body; 2232, first arc-shaped portion; 224, squeezing disk; 225, second unwinding shaft; 226, second unwinding disk; 2261, second disk body; 2262, second arc-shaped portion; 227, guide shaft; 228, adjusting slot; 229, nut; 300, wire board; 310, wire outlet. DETAILED DESCRIPTION

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0061] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0062] As used herein, when an element or layer is referred to as being "located on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it may be directly located on, engaged, connected, attached to, or coupled to the other element or layer, or there may be intervening elements or layers. Conversely, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intervening elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0063] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0064] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0065] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0066] Research has found that the unwinding structure in the relevant technology has poor adaptability to yarns of different specifications, especially when unwinding, the thickness of the yarn changes due to changes in elasticity, which causes the core-spun yarn to get stuck in the unwinding structure, resulting in breakage; there is a lack of heat dissipation mechanism in the unwinding process, and when unwinding at high speed, the friction and temperature of the yarn easily cause the outer fiber to melt and stick; when multiple yarn positions are unwound synchronously, there is a lack of airflow guidance and coordination between the unwinding units, which is not conducive to heat dissipation.

[0067] Based on the above research, the presently disclosed embodiments provide an unwinding device for producing core-spun yarn and its use method, specifically for high-elasticity core-spun yarn, referred to in this embodiment as core-spun yarn. Specifically, the return spring of the elastic unwinding assembly 200 adaptively adjusts the gap between the first unwinding disc and the extrusion disc, thereby adaptively adjusting the wire diameter to prevent jamming. Furthermore, an airflow disturbance structure is added, with an arc-shaped portion provided on the unwinding disc. This disrupts the airflow during rotation, accelerating heat dissipation of the core-spun yarn.

[0068] The defects in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0069] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0070] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0071] See also Figure 1 and Figure 2 At least one embodiment provides an unwinding device for core-spun yarn production, comprising: a bracket body 100; an unwinding assembly 200, which is arranged on the bracket body 100 and is used to unwind the core-spun yarn; a wire guide 300, which is arranged on the side of the bracket body 100 and is used to guide and send out the unwound core-spun yarn; wherein, the unwinding assembly 200 comprises: a reel 210, which is arranged on the bracket body 100; an elastic unwinding member 220, which is arranged on the bracket body 100; during unwinding, the core-spun yarn is wound onto the reel 210 by external force, and after the thread end is inserted into the elastic unwinding member 220, the core-spun yarn is pulled out from the thread outlet 310 of the wire guide 300 by the external reel-in to complete the unwinding of the core-spun yarn.

[0072] Among them, the core-spun yarn routing path is as follows: Figure 2 As shown by the middle dotted line, the core-spun yarn is wound on the unwinding drum 210 by artificially providing external force, and the thread end is pulled out from the elastic unwinding member 220 and wound on the external winding drum, and then the winding drum is wound to pull the core-spun yarn for unwinding.

[0073] By setting up the elastic unwinding piece 220, the thickness fluctuation of the core-spun yarn can be adapted to in real time during the unwinding process. At the same time, when the core-spun yarn is locally thickened due to elastic deformation or the yarn joint is being unwound, the problem of the core-spun yarn being rigidly clamped and stuck in the related technology can be avoided. When the core-spun yarn returns to its original shape, the elastic unwinding piece 220 restores its deformation to ensure the stability of the unwinding yarn path.

[0074] See also Figure 2 and Figure 3The elastic unwinding member 220 includes: a bottom plate 221, which is arranged on the bracket body 100; a first unwinding shaft 222, which is arranged on the bottom plate 221; a first unwinding disk 223, which is sleeved on the first unwinding shaft 222 and arranged close to the bottom plate 221; an extrusion disk 224, which is sleeved on the first unwinding shaft 222 and elastically connected to the top of the first unwinding shaft 222 through a return spring 2221. The extrusion disk 224 is close to the first unwinding disk 223 under the action of the return spring 2221, and forms a gap with the first unwinding disk 223 for inserting the thread end of the core-spun yarn.

[0075] The dynamic gap formed by the extrusion disk 224 and the return spring 2221 is used to adapt to the changes in the diameter of the core-spun yarn, thereby preventing the core-spun yarn from being clamped and stuck, especially when unwinding at the joint of the core-spun yarn, which can avoid jamming to the greatest extent and reduce the probability of wire breakage.

[0076] Specifically, the height of the gap between the first unwinding disc 223 and the squeezing disc 224 is H1; the diameter of the core-spun yarn is H2; wherein, H1<H2, and the units of H1 and H2 are mm.

[0077] See also Figure 3 and Figure 4 The first unwinding disk 223 includes: a first disk body 2231; a plurality of first arc-shaped portions 2232, and the plurality of first arc-shaped portions 2232 are arranged along the circumference of the first disk body 2231; when unwinding, the core-spun yarn pulls the first unwinding disk 223 to rotate, thereby driving the first arc-shaped portions 2232 to rotate around the first unwinding axis 222 to form an airflow to dissipate heat from the core-spun yarn.

[0078] Among them, the core-spun yarn routing path is as follows: Figure 4 As shown by the middle dotted line, when the core-spun yarn is pulled for unwinding, the core-spun yarn rubs against the first unwinding disk 223, driving the first unwinding disk 223 to rotate, thereby causing the first arc-shaped portion 2232 to rotate, forming a directional airflow, increasing the air flow in the gap, and then dissipating the heat of the core-spun yarn.

[0079] Please continue reading Figure 3 and Figure 4 In a preferred embodiment, the elastic unwinding member 220 further includes: a second unwinding shaft 225, which is arranged on the bottom plate 221; and a second unwinding disk 226, which is sleeved on the second unwinding shaft 225 and arranged close to the bottom plate 221.

[0080] Among them, the second unwinding disk 226 includes: a second disk body 2261; a plurality of second arc-shaped portions 2262, and the plurality of second arc-shaped portions 2262 are arranged along the circumference of the second disk body 2261; when unwinding, the core-spun yarn pulls the second unwinding disk 226 to rotate, thereby driving the second arc-shaped portions 2262 to rotate around the second unwinding axis 225 to form an airflow to dissipate heat for the core-spun yarn.

[0081] The core-spun yarn is subjected to secondary heat dissipation through the second unwinding disk 226 to further reduce the temperature of the core-spun yarn surface.

[0082] Please continue reading Figure 3 and Figure 4 The elastic unwinding member 220 further includes a guide shaft 227. The guide shaft 227 is disposed on the bottom plate 221 and is located between the first unwinding shaft 222 and the second unwinding shaft 225. The axes of the first unwinding shaft 222, the second unwinding shaft 225, and the guide shaft 227 are parallel to each other. The guide shaft 227 is used to adjust the tension of the core-spun yarn during unwinding.

[0083] Specifically, the bottom plate 221 is provided with an adjustment slot 228 ; the first unwinding shaft 222 and the second unwinding shaft 225 pass through the corresponding adjustment slots 228 and are then fixed to the bottom plate 221 via nuts 229 .

[0084] The structural diagram of the first unwinding shaft 222 after installation is as follows: Figure 5 As shown, the structural diagram of the second unwinding shaft 225 after installation is as shown in FIG. Figure 6 shown.

[0085] See also Figure 1 In a preferred embodiment, there are multiple unwinding components 200; multiple unwinding components 200 are arranged in an array along the height direction and length direction of the bracket body 100; there are multiple wire boards 300; each wire board 300 is provided with multiple wire outlets 310.

[0086] See also Figure 7 At least one embodiment further provides a method for using the unwinding device for producing core-spun yarn as described above, the method comprising:

[0087] S110: Place the yarn roll on the unwinding drum 210;

[0088] S120: Insert the core-spun yarn end into the elastic unwinding member 220 by external force and pull it out from the outlet 310 of the wire guide 300;

[0089] S130: The external winding drum pulls the core-spun yarn and unwinds the core-spun yarn through the elastic unwinding assembly 200.

[0090] In summary, the present invention provides an unwinding device for core-spun yarn production, comprising: a bracket body 100; an unwinding assembly 200, which is arranged on the bracket body 100 and is used to unwind the core-spun yarn; a wire plate 300, which is arranged on the side of the bracket body 100 and is used to guide and send out the unwound core-spun yarn; wherein, the unwinding assembly 200 comprises: a unwinding drum 210, which is arranged on the bracket body 100; an elastic unwinding member 220, which is arranged on the bracket body 100; during unwinding, the core-spun yarn is wound onto the unwinding drum 210 by external force, and after the thread end is inserted into the elastic unwinding member 220, the core-spun yarn is pulled out from the thread outlet 310 of the wire plate 300 by the external winding drum for winding, thereby completing the unwinding of the core-spun yarn. By setting up the elastic unwinding piece 220, the thickness fluctuation of the core-spun yarn can be adapted to in real time during the unwinding process. At the same time, when the core-spun yarn is locally thickened due to elastic deformation or the yarn joint is being unwound, the problem of the core-spun yarn being rigidly clamped and stuck in the related technology can be avoided. When the core-spun yarn returns to its original shape, the elastic unwinding piece 220 restores its deformation to ensure the stability of the unwinding yarn path.

[0091] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. An unwinding device for core-spun yarn production, characterized in that: include: a bracket body (100); an unwinding assembly (200), which is arranged on the support body (100) and is used for unwinding the core-spun yarn; A wire guide plate (300) is arranged on the side of the bracket body (100) and is used to guide and send out the unwound core-spun yarn; Wherein, the unwinding assembly (200) comprises: an unwinding drum (210), which is arranged on the support body (100); an elastic unwinding member (220) disposed on the bracket body (100); During unwinding, the core-spun yarn is wound onto the unwinding drum (210), and the thread end is inserted into the elastic unwinding member (220) and then pulled out from the thread outlet (310) of the wire guide plate (300), thereby completing the unwinding of the core-spun yarn; The elastic unwinding member (220) comprises: A bottom plate (221) is provided on the bracket body (100); a first unwinding shaft (222), which is arranged on the bottom plate (221); a first unwinding disc (223) sleeved on the first unwinding shaft (222) and arranged close to the bottom plate (221); a squeeze disc (224) sleeved on the first unwinding shaft (222) and elastically connected to the top of the first unwinding shaft (222) via a return spring (2221); the squeeze disc (224) approaches the first unwinding disc (223) under the action of the return spring (2221) and forms a gap with the first unwinding disc (223) for inserting the thread end of the core-spun yarn; The elastic unwinding member (220) further comprises: a second unwinding shaft (225), which is arranged on the bottom plate (221); a second unwinding disc (226) which is sleeved on the second unwinding shaft (225) and is disposed close to the bottom plate (221); The elastic unwinding member (220) further comprises: Guide shaft (227); The guide shaft (227) is arranged on the bottom plate (221) and is located between the first unwinding shaft (222) and the second unwinding shaft (225); The axes of the first unwinding shaft (222), the second unwinding shaft (225), and the guide shaft (227) are parallel to each other.

2. The unwinding device for core-spun yarn production according to claim 1, characterized in that: The height of the gap between the first unwinding disc (223) and the squeezing disc (224) is H1; The diameter of the core-spun yarn is H2; Wherein, H1<H2, and the units of H1 and H2 are mm.

3. The unwinding device for core-spun yarn production according to claim 1, characterized in that: The first unwinding disc (223) comprises: First disc body (2231); a plurality of first arc-shaped portions (2232), and the plurality of first arc-shaped portions (2232) are arranged along the circumference of the first disk body (2231); During unwinding, the core-spun yarn pulls the first unwinding disc (223) to rotate, thereby driving the first arc-shaped portion (2232) to rotate around the first unwinding axis (222) to form an airflow to dissipate heat from the core-spun yarn.

4. The unwinding device for core-spun yarn production according to claim 1, characterized in that: The second unwinding disc (226) comprises: Second disc body (2261); a plurality of second arc-shaped portions (2262), wherein the plurality of second arc-shaped portions (2262) are arranged along the circumference of the second disk body (2261); During unwinding, the core-spun yarn pulls the second unwinding disc (226) to rotate, thereby driving the second arc-shaped portion (2262) to rotate around the second unwinding axis (225) to form an airflow to dissipate heat from the core-spun yarn.

5. The unwinding device for core-spun yarn production according to claim 1, characterized in that: The bottom plate (221) is provided with an adjustment slot (228); After the first unwinding shaft (222) and the second unwinding shaft (225) pass through the corresponding adjustment slots (228), they are fixed on the bottom plate (221) via nuts (229).

6. The unwinding device for core-spun yarn production according to claim 1, characterized in that: The number of the unwinding components (200) is multiple; The plurality of unwinding assemblies (200) are arranged in an array along the height direction and the length direction of the bracket body (100); There are multiple wire guide plates (300); Each of the wire boards (300) is provided with a plurality of wire outlets (310).

7. A method for using the unwinding device for core-spun yarn production according to claim 1, characterized in that: The method of use includes: The yarn roll is placed on the unwinding drum (210); Pulling the thread end of the core-spun yarn, inserting it into the elastic unwinding member (220), and pulling it out from the wire outlet (310) of the wire guide plate (300); The core-spun yarn is pulled and unwound through the elastic unwinding component (200).

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