Belt for winding device and manufacturing method thereof
By designing an endless belt suitable for the winding device, the problem of uneven cotton winding quality in high temperature and high humidity environments is solved, and efficient production of compact and uniform cotton winding is achieved.
Patent Information
- Application Number
- CN202380093842.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-12-23
- Filing Date
- 2023-12-18
- Publication Date
- 2025-09-19
AI Technical Summary
In existing winding devices, under high ambient temperature and air humidity, the expansion of the belt and the change of static friction force lead to uneven cotton winding quality and reduced productivity.
An endless belt is designed, including a transmission layer and a winding layer with thicknesses of 0.2 mm to 0.6 mm and 1.0 mm to 2.0 mm respectively. It is made of acrylonitrile-butadiene rubber and non-adhesive fiber materials, is driven by friction locking, and can maintain stable static friction and expansion under high pressure.
Compact and uniform cotton winding with high productivity and high quality is achieved under high ambient temperature and air humidity, ensuring uniform cotton weight and winding structure, and avoiding unstable static friction caused by temperature and humidity changes.
Smart Images
Figure CN120677280A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a belt for a winding device for producing rolls of cotton batting. Background Art
[0002] To create the batt roll, some winding devices use a flat belt to form the roll. In this case, a belt loop is placed around a sleeve rotatably mounted on a fixed shaft. Its dimensions are adapted as the roll diameter increases and, at the end of the winding process, it wraps almost completely around the batt. To form the batt roll, the batt web is introduced into the belt loop between two deflecting rollers and transferred to the sleeve surface.
[0003] Over time, winding devices have produced larger and / or wider batt rolls, and the forces required to produce such rolls have increased dramatically and can reach up to 500 N or more. The ambient temperature and the air humidity also play an important role: for example, one affects the elasticity of the belt and / or the other the static friction of the belt against the rollers. Summary of the Invention
[0004] The object of the present invention is to provide a belt for a take-up device which does not have all or some of the disadvantages of the known prior art and which has or obtains less expansion and better static friction during operation.
[0005] This object is achieved in whole or in part by the features of the present invention. To achieve this object, a belt for a winding device is provided for producing a cotton roll when winding cotton onto a sleeve-shaped core. The belt is configured as an endless belt and is driven in a loop, wherein the belt comprises:
[0006] -Thickness between 1.2mm and 2.2mm;
[0007] - a transmission layer; wherein the transmission layer is configured to be driven by friction locking of a plurality of rollers;
[0008] and
[0009] - a winding layer; wherein the winding layer is configured to wind the cotton batting onto a sleeve-shaped core and is driven by at least one roller by friction locking.
[0010] Advantageously, the belt can withstand or absorb greater forces, enabling the production of larger and / or wider batt rolls. But that's not all. Thanks to these technical characteristics, the belt can operate at higher ambient temperatures and humidity: one affects the belt's elasticity, and the other affects the belt's static friction against the roller. The belt's expansion and / or elasticity play a significant role in producing batt rolls. This enables the production of compact, uniformly structured rolls of optimal quality at the highest productivity and speed. Winding quality is, among other things, based on uniform batt weight and uniform roll structure. If belt properties, such as the belt's coefficient of expansion, change under the influence of temperature, the winder quality also changes. Another disadvantage of a changing coefficient of expansion is the belt's static friction against the roller. Static friction can vary depending on temperature and / or humidity. Depending on the temperature and / or humidity, the belt may no longer adhere properly to the roller, resulting in an irregular distribution of contact pressure around the roll circumference.
[0011] According to one embodiment, the transmission layer has a thickness between 0.2 mm and 0.6 mm, preferably between 0.3 mm and 0.5 mm, and / or the wrapping layer has a thickness between 1.0 mm and 2 mm, preferably between 1.4 mm and 1.8 mm.
[0012] Due to one embodiment, the transport layer can withstand higher pressures and / or the wound layer can adhere better to the roller.
[0013] This object is achieved in whole or in part by the features of the present invention. To achieve this object, a method for manufacturing a belt for a winding device is proposed for producing a cotton roll when winding cotton onto a sleeve-shaped core. The method comprises:
[0014] - Two different materials available:
[0015] - a transmission layer comprising a transmission side and a first fastening side facing away from the transmission side; and
[0016] - Wound layer: The wound layer comprises a winding side and a second fastening side facing away from the winding side;
[0017] - superimposing the first and second fastening sides relative to each other;
[0018] - Assembling the first and second fastening sides to produce a belt having a thickness between 1.2 mm and 2.2 mm.
[0019] Advantageously, the belt can withstand greater forces, enabling the production of larger and / or wider batt rolls. But that's not all. Thanks to these technical characteristics, the belt can operate at higher ambient temperatures and humidity: one affects the belt's elasticity, and the other affects the belt's static friction against the roller. The belt's expansion and / or elasticity play a significant role in producing batt rolls. This enables the production of compact, uniformly structured rolls of optimal quality at the highest productivity and speed. Winding quality is based, among other factors, on uniform batt weight and uniform roll structure. If belt properties, such as the belt's coefficient of expansion, change under the influence of temperature, the winder quality also changes. Another disadvantage of a changing coefficient of expansion is the belt's static friction against the roller. This static friction can vary depending on temperature and / or humidity. Depending on the temperature and / or humidity, the belt may no longer adhere properly to the roller, resulting in an irregular distribution of contact pressure around the roll circumference. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The foregoing and other objects, features, aspects and advantages of the present invention will become apparent from the following detailed description of embodiments thereof which are shown by way of illustration and not limitation with reference to the accompanying drawings, in which:
[0021] - Figure 1 shows a schematic diagram of a winding device 200 having a belt 100 according to an embodiment of the present invention; and,
[0022] - Figure 2 A schematic diagram of a method 500 according to an embodiment of the present invention is shown.
[0023] In the following description of the illustrated embodiments, the same reference numerals are used for features that are identical and / or at least comparable in design and / or mode of operation, even if they are shown in different embodiments. Unless these are explained in detail again, their design and / or mode of operation correspond to the design and mode of operation of the features described above. DETAILED DESCRIPTION
[0024] To form a batt roll 910, a batt web 901 is introduced into a winding device 200. The winding device 200 comprises a belt 100 guided over a plurality of deflection rollers 201, 202, 204, 205. The belt 100 forms a loop 199 between two deflection rollers 201, 205, in which the roll 910 is formed. During the winding process, the batt web 901, also referred to as batt 901, which is fed into the loop 199 by a calender roller 230, is wound onto a sleeve 920.
[0025] As the roll 910 grows, the loop 199 also grows. A tensioning device is provided to tighten the belt or compensate for belt displacement as the loop 199 grows. The tensioning device applies greater force to the cotton roll 910, enabling the creation of larger and / or wider cotton rolls 910. This force can reach 12 kN or even 16 kN, placing significant stress on the belt. Furthermore, other conditions may play a role, such as ambient temperature and / or humidity.
[0026] With conventional belts and under specific conditions, particularly high pressure, it has been observed that the quality of larger and / or wider batt rolls 910 produced can deviate from the standard. In this case, the belt may be deformed, meaning its coefficient of expansion has changed, or because the static friction of the belt against the rollers is too weak. Pressure, ambient temperature, and air humidity can affect the belt's properties in different ways.
[0027] The present invention can operate at high ambient temperatures and air humidity and absorb the high pressures exerted by the rollers 201, 202, 203, 204, 205, thereby producing a compact and uniformly structured winding 910 of optimal quality at the highest productivity and speed. According to one embodiment, the belt 100 comprises a transmission layer 110 of, for example, acrylonitrile-butadiene rubber and a winding layer 120 to which fibers may not adhere.
[0028] The transport layer 110 can be driven by frictional engagement of a plurality of rollers 201, 202, 204, 205 and can have a thickness 113 between 0.2 mm and 0.6 mm, preferably between 0.3 mm and 0.5 mm. The winding layer 120, for example made of polyamide, can be wound around the sleeve-shaped core 920 with the cotton batting 901 and can be driven by frictional engagement of at least one roller 203 and can have a thickness 123 between 1.0 mm and 2 mm, preferably between 1.4 mm and 1.8 mm.
[0029] like Figure 2 As shown, the transmission layer 110 includes a transmission side 111 and a first fastening side 112 that can face away from the transmission side 111 . Meanwhile, the winding layer 120 includes a winding side 121 and a second fastening side 122 that can face away from the winding side 121 .
[0030] To produce the belt 100, and after providing 510 the transmission layer 110 and the wrapping layer 120, the first fastening side 112 of the transmission layer 110 and the second fastening side 122 of the wrapping layer 120 may be superimposed 520 and then assembled 530 to produce the belt 100 having a thickness 103 between 1.2 mm and 2.2 mm.
[0031] According to one embodiment, the belt 100 can be inserted into the winding device 200. As described above, the cotton batting 901 is wound on the sleeve 920 used as a core. The sleeve 920 is driven by the endless belt 100, which forms a loop 199 between the two deflection rollers 201 and 205, and the sleeve 920 is accommodated in the loop 199.
[0032] like Figure 1 As shown, the cotton roll 910 is driven by the belt 100. The loop 199 of the belt 100 surrounding the cotton roll 910 increases as the cotton roll 910 increases, wherein the belt 100 is tensioned by the tensioning device throughout the entire winding process. Simultaneously, the pressure increases, and due to the transmission layer 110 and the winding layer 120, the belt 100 can operate in higher ambient temperatures and air humidity without compromising the elasticity of the belt 100 and / or the static friction of the belt 100.
[0033] Expansion of the belt 100 is ensured, which makes it possible to have a uniform batting weight and a uniform winding structure 910, producing windings 910 of compact and uniform structure with optimal quality at simultaneously the highest productivity and speed, without the static friction being weakened by temperature and / or air humidity.
Claims
1. A belt (100) for a winding device (200) for producing a cotton roll (910) when winding cotton (901) onto a sleeve-shaped core (920), wherein: The belt (100) is configured as an endless belt and is driven in a circular manner, wherein the belt (100) has: - a thickness (103) between 1.2 mm and 2.2 mm; - a transmission layer (110); wherein the transmission layer (110) is configured to be driven by friction locking of a plurality of rollers (201, 202, 204, 205); and - a winding layer (120); wherein the winding layer (120) is configured to wind the cotton batting (901) onto a sleeve-shaped core (920) and is driven by at least one roller (203) through friction locking.
2. The belt (100) according to claim 1, wherein The transmission layer (110) has a thickness (113) of 0.2 mm to 0.6 mm, preferably 0.3 mm to 0.5 mm, and / or the winding layer (120) has a thickness (123) of 1.0 mm to 2 mm, preferably 1.4 mm to 1.8 mm.
3. A method (500) for manufacturing a belt (100) for a winding device (200) for producing a cotton winding (910) when winding cotton (901) onto a sleeve-shaped core (920); The method (500) comprises: - Provide (510) two different materials: - a transmission layer (110): the transmission layer (110) comprises a transmission side (111) and a first fastening side (112) facing away from the transmission side (111); and - a winding layer (120): the winding layer (120) comprises a winding side (121) and a second fastening side (122) facing away from the winding side (121); - superimposing the first and second fastening sides (112, 122) relative to each other (520); - Assembling (530) said first and second fastening sides (112, 122) to produce a belt (100) having a thickness (103) between 1.2 mm and 2.2 mm.