Guide roller and washing machine

Abstract

A plurality of rows of amplitude modulation units are arranged on the outer wall of a roller body in parallel at equal intervals in the circumferential direction of the roller body, each amplitude modulation unit comprises a first convex edge section and a second convex edge section, the first convex edge sections and the second convex edge sections are oblique lines, and when the roller body is unfolded to form a plane, the first convex edge sections and the second convex edge sections are arranged in parallel at equal intervals. And the first convex edge section and the second convex edge section are in mirror symmetry relative to the roller periphery outer wall line corresponding to the axial center of the roller body. When the guide roller is applied to the washing machine, the fabric bypasses the guide roller and rotates in an expanding direction, angle differences are respectively formed between the first rib section and the axial direction of the guide roller as well as between the second rib section and the axial direction of the guide roller, so that the fabric can be stripped towards two sides, the surface of the fabric is smooth, wrinkles are effectively reduced, and the washing quality is improved.

Description

Technical Field

[0001] The invention relates to the field of dyeing and finishing equipment, in particular to a guide roller and a washing machine. Background Art

[0002] In the dyeing and finishing of textiles, in order to remove decomposition products, impurities, floating colors and other residual chemicals in scouring, dyeing, printing and some finishing processes, it is necessary to use a washing machine for thorough cleaning. Among them, cotton cloth, polyester-cotton cloth and other wrinkle-prone textiles will deviate in the weft direction under a certain tension during the washing process, resulting in creases and wrinkles, which will affect the dyeing effect or wrinkles formed in post-processing, resulting in defective products.

[0003] The current solution to the wrinkle problem of wrinkled fabrics is to use rubber bending rollers to expand the wrinkles before entering the water washing tank or the water squeezing car. However, due to factors such as uneven thickness of the rubber layer, unreasonable design of the expansion device, improper installation, etc., there is a defect of uneven expansion effect, which causes wrinkles or weft skew to still appear on the fabric after entering the washing tank.

[0004] In order to improve the washing quality of products, it is urgent to develop a more reliable and efficient expansion equipment. Summary of the invention

[0005] An object of the present invention is to provide a guide roller that can be used for guiding cloth and expanding the width of the cloth.

[0006] The technical solution to achieve the first objective of the present invention is: a guide roller, wherein the outer wall of the roller body is provided with several rows of amplitude modulation units parallel to and equidistantly spaced along the circumference of the roller body, the amplitude modulation unit includes a first convex rib segment and a second convex rib segment, the first convex rib segment and the second convex rib segment are both oblique lines, and when the roller body is unfolded into a plane, the first convex rib segment and the second convex rib segment are mirror-symmetrical with respect to the roller circumferential outer wall line corresponding to the axial center of the roller body.

[0007] Furthermore, the first convex ridge segment and the second convex ridge segment are arc-shaped spiral segments extending to the ends of the roller body, and the size of the spiral segments is limited to the effect of peeling the fabric to both sides in the width direction when the fabric passes through the guide roller.

[0008] Furthermore, a third ridge segment is connected between the first ridge segment and the second ridge segment, and the third ridge segment is parallel to the axial direction of the roller body. Adding the third ridge segment can reduce the difficulty of the roller body manufacturing process, improve the strength of the roller body, and improve the water washing effect.

[0009] Furthermore, the first convex rib section is connected to the second convex rib section, so that the width expansion effect is optimal.

[0010] Furthermore, there is a gap between the first convex rib segment and the second convex rib segment.

[0011] Furthermore, the amplitude modulation units are arranged around the circumference of the roller body to form a roller body with wavy patterns.

[0012] The amplitude modulation unit of the guide roller realized by the present invention forms a new oblique mirror-symmetrical structure, and the amplitude modulation unit evenly forms a new wave pattern around the circumference of the roller body. Compared with the pattern of the traditional straight-bar convex-ribbed wave roller, the wave pattern has the following advantages: in the washing machine, when the fabric passes through the guide roller and the guide roller rotates in an expanding direction, the first convex rib segment and the second convex rib segment respectively form an angle difference with the axial direction of the guide roller, which can peel the fabric to both sides, making the fabric surface smooth, effectively reducing wrinkles, and improving the washing quality.

[0013] A second object of the present invention is to provide a washing machine.

[0014] The technical solution for achieving the second objective of the present invention is: a washing machine, comprising an upper cloth guide roller group and a lower cloth guide roller group installed in a washing tank, the upper cloth guide roller group comprising several upper cloth guide rollers, the lower cloth guide roller group comprising several lower cloth guide rollers, the axes of the upper cloth guide rollers and the lower cloth guide rollers are parallel to each other, the upper cloth guide rollers and the lower cloth guide rollers are both passive rollers, a rolling car for pulling the fabric forward is installed outside the washing tank, and the fabric is serpentinely wound in sequence between each of the lower cloth guide rollers and each of the upper cloth guide rollers; the upper cloth guide roller is the guide roller described in any one of the first objective of the present invention, and the steering of the upper cloth guide roller is limited to the effect of peeling off the two sides of the fabric in the width direction when the fabric passes through the guide roller.

[0015] Furthermore, the turning of the upper cloth guide roller is limited to the effect of causing the two sides of the fabric to shrink toward the middle in the width direction when the fabric passes through the upper cloth guide roller.

[0016] The washing machine for achieving the second purpose of the present invention, the upper cloth guide roller adopts the guide roller described in the first purpose of the present invention, when the upper cloth guide roller rotates in an expanding direction, the surface of the fabric can be made flat and wrinkles can be effectively reduced, when the upper cloth guide roller rotates in a shrinking direction, it can play a shrinking role, the upper cloth guide roller and the lower cloth guide roller are both passive rollers, powered by the padder, which saves power consumption, reduces costs, and is simple to maintain and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the guide roller described in Example 1 of the present invention; Figure 2 This is a schematic diagram of the front view structure of the guide roller described in Example 1 of the present invention; Figure 3 for Figure 2 AA section structural diagram; Figure 4 This is a schematic diagram of the three-dimensional structure of the guide roller described in Example 2 of the present invention; Figure 5 This is a schematic diagram of the front view structure of the guide roller described in Example 2 of the present invention; Figure 6 This is a schematic diagram of the structure of the washing machine described in Example 3 of the present invention; wherein the arrow represents the running direction of the fabric. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0019] like Figures 1 to 3 As shown, a guide roller, a guide roller, comprises a roller body 1, an outer wall 11 of the roller body 1 is provided with several rows of amplitude modulation units 2 in parallel and at equal intervals along the circumference of the roller body 1, the amplitude modulation unit 2 comprises a first convex rib segment 21 and a second convex rib segment 22, the first convex rib segment 21 and the second convex rib segment 22 are both oblique lines, and when the roller body 1 is unfolded into a plane, the first convex rib segment 21 and the second convex rib segment 22 are mirror-symmetrical with respect to the roller circumferential outer wall line corresponding to the axial center of the roller body 1; a third convex rib segment 23 is connected between the first convex rib segment 21 and the second convex rib segment 22, and the third convex rib segment 23 is parallel to the axial direction of the roller body 1.

[0020] In this embodiment, Figure 3 The amplitude modulation units 2 shown are all arranged around the circumference of the roller body 1 to form a roller body with wavy patterns. Compared with the patterns of traditional straight-bar convex-ribbed wavy rollers, the wavy patterns have the following advantages: in a washing machine, when the fabric passes through the guide roller and the guide roller rotates in an expanding direction, the first convex rib segment and the second convex rib segment respectively form an angle difference with the axial direction of the guide roller, which can peel the fabric to both sides, making the surface of the fabric smooth, effectively reducing wrinkles and improving the washing quality. Example 2

[0021] like Figure 4 and Figure 5 As shown, the difference between Example 2 and Example 1 is that the guide roller is not provided with the third convex rib section, and the first convex rib section 21 is connected to the end of the second convex rib section 22. This structure has the best width expansion effect. Example 3

[0022] like Figure 6As shown, a washing machine comprises an upper cloth guide roller group 20 and a lower cloth guide roller group 30 installed in a washing tank 10, the upper cloth guide roller group 20 comprises a plurality of upper cloth guide rollers 201, the lower cloth guide roller group 30 comprises a plurality of lower cloth guide rollers 301, the axes of the upper cloth guide rollers 201 and the lower cloth guide rollers 301 are parallel to each other, the upper cloth guide rollers 201 and the lower cloth guide rollers 301 are both passive rollers, a rolling car (not shown) for pulling the fabric forward is installed outside the washing tank 10, the fabric 100 is serpentinely wound in sequence between the lower cloth guide rollers 301 and the upper cloth guide rollers 201 along the running direction of the fabric, the structure of the upper cloth guide roller 201 is the structure of the guide roller described in Example 1, the steering of the upper cloth guide roller is limited to the effect of peeling the fabric 100 to both sides in the width direction when the fabric 100 passes through the upper cloth guide roller, and the upper cloth guide roller in this embodiment rotates clockwise.

[0023] The ends of the first rib segment and the second rib segment of the present invention may not be connected, and the first rib segment and the second rib segment of the same size in each amplitude modulation unit can ensure accurate width expansion of the fabric during the traveling process.

[0024] The third ridge segment of the present invention is arranged as required. The third ridge segment is added so that the ends of the first ridge segment and the second ridge segment may not be connected, thereby improving the strength of the roller body and the water washing effect.

[0025] The first ridge segment and the second ridge segment are not limited to oblique lines, but can also be arc-shaped spiral segments extending to the ends of the roller body. The size of the spiral segments is limited to the effect of peeling the fabric to both sides in the width direction when the fabric passes through the guide roller.

[0026] The application of the guide roller of the present invention is not limited to that shown in the embodiment. When the guide roller turns in the opposite direction to that in embodiment 2, the two sides of the fabric shrink toward the middle in the width direction, which plays a role of shrinking the width.

[0027] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent process changes made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A guide roller, comprising a roller body, characterized in that: The outer wall of the roller body is provided with several rows of amplitude modulation units in parallel and at equal intervals along the circumference of the roller body, and the amplitude modulation units include a first convex rib segment and a second convex rib segment, the first convex rib segment and the second convex rib segment are both oblique lines, and when the roller body is unfolded into a plane, the first convex rib segment and the second convex rib segment are mirror-symmetrical with respect to the roller circumferential outer wall line corresponding to the axial center of the roller body.

2. The guide roller according to claim 1, characterized in that: The first convex ridge segment and the second convex ridge segment are arc-shaped spiral segments extending to the ends of the roller body, and the size of the spiral segments is limited to the effect of peeling the fabric to both sides in the width direction when the fabric passes through the guide roller.

3. The guide roller according to claim 1, characterized in that: A third ridge segment is connected between the first ridge segment and the second ridge segment, and the third ridge segment is parallel to the axial direction of the roller body.

4. The guide roller according to claim 1, characterized in that: The first convex rib section is connected to the second convex rib section.

5. The guide roller according to claim 1, characterized in that: A gap is formed between the first rib segment and the second rib segment.

6. The guide roller according to claim 1, characterized in that: The amplitude modulation units are all arranged around the circumference of the roller body to form a roller body with wavy patterns.

7. A washing machine, comprising an upper cloth guide roller group and a lower cloth guide roller group installed in a washing tank, wherein the upper cloth guide roller group comprises a plurality of upper cloth guide rollers, and the lower cloth guide roller group comprises a plurality of lower cloth guide rollers, wherein the axes of the upper cloth guide rollers and the lower cloth guide rollers are parallel to each other, and both the upper cloth guide rollers and the lower cloth guide rollers are passive rollers, and a padder for pulling the fabric forward is installed outside the washing tank, and the fabric is wound in a serpentine shape in sequence between the lower cloth guide rollers and the upper cloth guide rollers; characterized in that: The upper cloth guide roller structure is the guide roller structure described in any one of claims 1-6, and the turning of the upper cloth guide roller is limited to the effect of peeling the fabric to both sides in the width direction when the fabric passes through the upper cloth guide roller.

8. The washing machine according to claim 7, characterized in that: The turning of the upper cloth guide roller is limited to the effect of causing the two sides of the fabric to shrink toward the middle in the width direction when the fabric passes through the upper cloth guide roller.

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