A flattening roller for base cloth production and a cloth conveying device

Abstract

The utility model relates to a kind of flattening roller and cloth conveying device for base cloth production.The roller on each telescopic rod of the utility model is rolled along annular contact surface, and telescopic rod will be telescoped left and right, to drive elastic rubber sleeve to be telescoped regularly, the regular telescoping change of elastic rubber sleeve in the process of rotation is used, fabric is introduced from the part of elastic rubber sleeve shortest length, then is led out from the part of elastic rubber sleeve longest length, so that the part of fabric contact with elastic rubber sleeve is always in the change of axial elongation, to drive fabric to be flattened, the process of flattening is uniform and smooth, suitable for base cloth of various materials, and fabric will not be damaged.

Description

Technical Field

[0001] This utility model relates to a fabric conveying device, and more particularly to a flattening roller for base fabric production and a fabric conveying device. Background Technology

[0002] The base fabric needs to be transported multiple times on a fabric conveyor during production, and corresponding finishing processes such as ironing and padding are performed. Existing fabric conveyors generally include flattening rollers to flatten the fabric and prevent wrinkles during transport. Threaded flattening rollers are a common type, but they are only suitable for fabrics with poor elasticity. They are not effective at flattening elastic fabrics (such as knitted stretch fabrics), easily leading to loop displacement or irreparable wrinkles. Furthermore, the wide threads and shallow grooves of threaded flattening rollers can cause excessive localized stress on the fabric, potentially resulting in lateral stretching deformation or edge wrinkles. Therefore, there is a need to design a fabric flattening device that provides better flattening results, does not damage the fabric, and has wider applicability. Summary of the Invention

[0003] This utility model provides a flattening roller for base fabric production and a fabric conveying device; it solves the problem that existing threaded flattening rollers are prone to damaging the fabric and have poor versatility.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a flattening roller for base fabric production, comprising:

[0005] A fixed shaft has a middle section in its middle part, and roller contact discs are fixed at both ends of the fixed shaft. An annular contact surface is formed on the outer side end face of the roller contact disc, and the annular contact surface is inclined to the axis of the fixed shaft.

[0006] Two sets of rotating sleeve assemblies are mirror images of each other about the middle section. Each rotating sleeve assembly consists of an outer rotating cylinder, an inner rotating cylinder, several telescopic rods, and an elastic sleeve. The outer rotating cylinder is rotatably sleeved on a fixed shaft outside the roller contact plate, and the inner rotating cylinder is rotatably sleeved on a fixed shaft near the middle section. The two rotating cylinders are fixed axially relative to the fixed shaft. Several telescopic rods slide along the outer rotating cylinder in a circumferential array. The telescopic rods are fixed circumferentially relative to the outer rotating cylinder. The inner end of each telescopic rod is provided with a roller that contacts the annular contact surface. The outer end of each telescopic rod is provided with an end cap. The elastic sleeve is sleeved between the outer rotating cylinder and the inner rotating cylinder. The two ends of the elastic sleeve are provided with an outer retaining ring and an inner retaining ring. The outer retaining ring engages with all the end caps, and the inner retaining ring engages with the inner rotating cylinder.

[0007] Two drive wheels are located on the outside of the two outer rotating cylinders and are fixed coaxially with each other.

[0008] The elastic sleeve in this invention is always under tension along its length, thus generating real-time pressure on the end caps of the telescopic rods, ensuring that the rollers on all telescopic rods remain in contact with the annular contact surface. The fixed shaft in this invention is horizontally fixed, and its drive wheel engages with an external transmission assembly. When the two rotating sleeve assemblies rotate synchronously at the same speed, the telescopic rods on the outer rotating cylinder rotate synchronously. Because the annular contact surface is inclined to the axis of the fixed shaft, the rollers on each telescopic rod extend and retract laterally as they roll along the annular contact surface, thereby regularly driving the elastic sleeve to extend and retract. Utilizing the regular extension and retraction of the elastic sleeve during rotation, the fabric is introduced from the shortest part of the elastic sleeve and then withdrawn from the longest part, ensuring that the area where the fabric contacts the elastic sleeve is always under axial elongation. This causes the fabric to flatten evenly and smoothly, suitable for various base fabrics without damaging them.

[0009] Furthermore, a heating module is provided inside the fixed shaft. The function of the heating module is to maintain the temperature of the elastic rubber sleeve between 40°C and 55°C. Within this temperature range, the elastic rubber can maintain good elasticity, and its aging rate is not significantly accelerated.

[0010] Furthermore, a number of bearings are provided on the fixed shaft in the area between the outer end rotating cylinder and the inner end rotating cylinder. The bearings are in contact with the inner wall of the elastic rubber sleeve, thereby enhancing the pressure resistance of the elastic rubber sleeve and keeping its outer wall tending to be smooth and straight.

[0011] This utility model also provides a fabric conveying device, including several traction rollers, several guide rollers, flattening rollers and tension rollers. The flattening rollers are the aforementioned flattening rollers for base fabric production. Under the action of the guide rollers, the fabric is introduced from the part with the shortest length of the elastic sleeve and then led out from the part with the longest length of the elastic sleeve.

[0012] Therefore, this utility model has the following characteristics compared with the prior art: 1. During the rolling process along the annular contact surface, the rollers on each telescopic rod will extend and retract left and right, thereby regularly driving the elastic sleeve to extend and retract. By utilizing the regular extension and retraction changes of the elastic sleeve during rotation, the fabric is introduced from the shortest part of the elastic sleeve and then pulled out from the longest part of the elastic sleeve, so that the part of the fabric in contact with the elastic sleeve is always in a state of axial elongation, thereby driving the fabric to flatten. The flattening process is uniform and smooth, suitable for base fabrics of various materials, and will not damage the fabric. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Appendix Figure 2 This is a partially enlarged view of one end of this utility model;

[0015] Appendix Figure 3 It is attached Figure 1 A magnified view of AA direction. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Example 1: See Figure 1 and Figure 2 A flattening roller for base fabric production, comprising:

[0019] The fixed shaft 100 is coaxially screwed together by the left shaft body 101, the middle section 102 and the right shaft body 103. The left and right shaft bodies are also mirror fixed with roller contact disks 110. An annular contact surface 111 is formed on the outer end face of the roller contact disk. The annular contact surface is inclined to the axis of the fixed shaft.

[0020] See Figure 2 and Figure 3Two sets of rotating sleeve assemblies 200 are mirror images of each other about the middle section. Each rotating sleeve assembly consists of an outer rotating cylinder 210, an inner rotating cylinder 220, eight telescopic rods 230, and an elastic sleeve 240. The outer rotating cylinder is rotatably mounted on the left or right shaft outside the roller contact plate, and the inner rotating cylinder is rotatably mounted on the left or right shaft near the middle section. Both the outer and inner rotating cylinders are equipped with rotating bearings connected to the left or right shaft. The two rotating cylinders are axially fixed relative to a fixed shaft. The outer rotating cylinder consists of a flange 211, a sleeve 212, and a mounting plate 213. The eight telescopic rods... The rod slides along the mounting plate in a circumferential array. The mounting plate is also screwed with 8 positioning bolts 214. The telescopic rod is provided with sliding grooves 231 distributed along its axial direction. The 8 positioning bolts slide and engage with the sliding grooves on the 8 telescopic rods one by one, so that the telescopic rod is fixed relative to the outer end rotating cylinder in the circumferential direction. The inner end of the telescopic rod is provided with a roller 232 that contacts the annular contact surface. The outer end of the telescopic rod is provided with an end cap 233. An elastic rubber sleeve is fitted between the outer end rotating cylinder and the inner end rotating cylinder. The two ends of the elastic rubber sleeve are provided with an outer retaining ring 241 and an inner retaining ring 242. The outer retaining ring engages with all the end caps, and the inner retaining ring engages with the inner end rotating cylinder.

[0021] See Figure 2 There are two drive wheels 300, which are fixedly installed on the flange plate. The drive wheels are preferably one of spur gears, helical gears, and synchronous belt gears.

[0022] In this embodiment, the elastic sleeve is always under tension along its length, thus generating real-time pressure on the end caps of the telescopic rods, ensuring that the rollers on all telescopic rods remain in contact with the annular contact surface. The fixed shaft in this embodiment is horizontally fixed, and its drive wheel engages with an external transmission assembly. When the two rotating sleeve assemblies rotate synchronously at the same speed, the telescopic rods on the outer rotating cylinder rotate synchronously. Because the annular contact surface and the axis of the fixed shaft are inclined, the telescopic rods extend and retract laterally as the rollers on each telescopic rod roll along the annular contact surface, thereby regularly driving the elastic sleeve to extend and retract. Utilizing the regular extension and retraction of the elastic sleeve during rotation, the fabric is introduced from the shortest part of the elastic sleeve and then withdrawn from the longest part, ensuring that the area where the fabric contacts the elastic sleeve is always under axial elongation. This causes the fabric to flatten, resulting in a smooth and uniform flattening process suitable for various base fabrics without damaging the material.

[0023] Specifically, the fixed shaft is hollow and contains a heating module 400. The function of the heating module is to maintain the temperature of the elastic rubber sleeve between 40°C and 55°C. Within this temperature range, the elastic rubber can maintain good elasticity and its aging rate is not significantly accelerated.

[0024] For details, see Figure 1Several bearings 120 are also provided on the fixed shaft in the area between the outer end rotating cylinder and the inner end rotating cylinder. The bearings are in contact with the inner wall of the elastic rubber sleeve, thereby enhancing the pressure resistance of the elastic rubber sleeve and keeping its outer wall tending to be smooth and straight.

[0025] Along the axial direction of the fixed shaft, the drop on the annular contact surface is between 2 and 5 cm, depending on the width of the fabric. The wider the fabric, the greater the drop needs to be.

[0026] This embodiment also discloses a fabric conveying device, including several traction rollers, several guide rollers, flattening rollers and tension rollers. The flattening rollers are the aforementioned flattening rollers for base fabric production. Under the action of the guide rollers, the fabric is introduced from the part with the shortest length of the elastic sleeve and then led out from the part with the longest length of the elastic sleeve.

[0027] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A flattening roller for base fabric production, characterized in that, include: A fixed shaft has a middle section in its middle part, and roller contact discs are fixed at both ends of the fixed shaft. An annular contact surface is formed on the outer side end face of the roller contact disc, and the annular contact surface is inclined to the axis of the fixed shaft. Two sets of rotating sleeve assemblies are mirror images of each other about the middle section. Each rotating sleeve assembly consists of an outer rotating cylinder, an inner rotating cylinder, several telescopic rods, and an elastic sleeve. The outer rotating cylinder is rotatably sleeved on a fixed shaft outside the roller contact plate, and the inner rotating cylinder is rotatably sleeved on a fixed shaft near the middle section. The two rotating cylinders are fixed axially relative to the fixed shaft. Several telescopic rods slide along the outer rotating cylinder in a circumferential array. The telescopic rods are fixed circumferentially relative to the outer rotating cylinder. The inner end of each telescopic rod is provided with a roller that contacts the annular contact surface. The outer end of each telescopic rod is provided with an end cap. The elastic sleeve is sleeved between the outer rotating cylinder and the inner rotating cylinder. The two ends of the elastic sleeve are provided with an outer retaining ring and an inner retaining ring. The outer retaining ring engages with all the end caps, and the inner retaining ring engages with the inner rotating cylinder. Two drive wheels are located on the outside of the two outer rotating cylinders and are fixed coaxially with each other.

2. The flattening roller for base fabric production according to claim 1, characterized in that: A heating module is installed inside the fixed shaft.

3. The flattening roller for base fabric production according to claim 1, characterized in that: Several bearings are also provided on the fixed shaft in the area between the outer end rotating cylinder and the inner end rotating cylinder, and the bearings are in contact with the inner wall of the elastic rubber sleeve.

4. The flattening roller for base fabric production according to claim 1, characterized in that: The outer rotating cylinder is divided into a flange, a sleeve, and a mounting plate. The drive wheel is fixedly installed on the flange, and the telescopic rod is installed on the mounting plate.

5. The flattening roller for base fabric production according to claim 1, characterized in that: Along the axial direction of the fixed shaft, the drop on the annular contact surface is between 2 and 5 centimeters.

6. A fabric conveying device, comprising a plurality of traction rollers, a plurality of guide rollers, a flattening roller, and a tension roller, characterized in that: The flattening roller is the flattening roller for base fabric production as described in any one of claims 1 to 5.

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