A device for dyeing a knitted fabric

Abstract

The utility model provides a kind of knitted fabric dyeing device, belong to knitted fabric dyeing technical field, including material box and be set in its inside dyeing mechanism, dyeing mechanism includes the bottom plate being set in the lower end of the inner chamber of material box, the upper end of bottom plate is equipped with the array distribution of several rub ball one, the inner chamber upper end of material box is equipped with top plate by mounting assembly, the lower end of top plate is equipped with the array distribution of several rub ball two, several rub ball two and several rub ball one staggered distribution, mounting assembly includes the fixed plate being fixedly arranged in the middle of the upper end of material box, the lower end middle part of fixed plate is equipped with mounting groove, the cross section of mounting groove is T-shaped structure, and its opening is downward.The utility model passes through dyeing mechanism, continues to knitted fabric and applies uniform kneading force, effectively breaks the cloth surface dye liquor interface layer, promotes dye molecule to rapidly permeate to the internal gap of fiber, both guarantee dye uniform infiltration and avoid fiber structure damage, significantly reduce the uneven of surface retention dye liquor leads to the problem of color difference and color flower.

Description

Technical Field

[0001] This utility model belongs to the field of knitted fabric dyeing technology, and specifically relates to a knitted fabric dyeing device. Background Technology

[0002] Knitted fabrics, with their softness, elasticity, breathability, and body-hugging properties, are widely used in clothing, home furnishings, and other fields. However, their loose fiber structure and susceptibility to deformation under external forces place higher demands on the dyeing process. During dyeing, these fabrics must balance uniform penetration with shape stability, ensuring that dye molecules fully penetrate the fiber interior. This presents challenges to the design and operation of traditional dyeing equipment. Currently, dyeing equipment for knitted fabrics mostly uses immersion dyeing or spraying processes to achieve dyeing. Immersion dyeing relies on the static soaking of the fabric in the dye solution, and the dyeing is completed through liquid penetration. Spraying method covers the fabric surface by directional spraying of dye solution. Although these methods can complete basic dyeing, their core principle relies on the static contact between the fabric and the dye solution. It is difficult to actively break through the dye solution interface layer on the fiber surface, which makes it difficult for dye molecules to quickly and evenly penetrate into the internal gaps of the fiber, resulting in insufficient dyeing depth and low efficiency. Utility Model Content

[0003] In view of this, the present invention provides a dyeing device for knitted fabrics, which can continuously apply uniform rubbing force to the knitted fabric through the dyeing mechanism, effectively breaking the dye solution interface layer on the fabric surface, and promoting the dye molecules to quickly penetrate into the internal gaps of the fibers. This ensures uniform dye wetting while avoiding damage to the fiber structure, and significantly reduces color difference and color pattern problems caused by uneven dye solution retention on the surface.

[0004] To solve the above-mentioned technical problems, this utility model provides a dyeing device for knitted fabrics, including a material box and a dyeing mechanism disposed therein. The dyeing mechanism includes a bottom plate disposed at the lower end of the inner cavity of the material box, and a plurality of rubbing balls arranged in an array at the upper end of the bottom plate. A top plate is installed at the upper end of the inner cavity of the material box through an installation component, and a plurality of rubbing balls arranged in an array at the lower end of the top plate. That is, a uniform rubbing force is continuously applied to the knitted fabric, effectively breaking the dye liquor interface layer on the fabric surface, promoting the dye molecules to quickly penetrate into the internal pores of the fiber, ensuring uniform dye wetting while avoiding damage to the fiber structure, and significantly reducing color difference and color pattern problems caused by uneven dye liquor retention on the surface. The staggered distribution of several rubbing balls (two types) and several rubbing balls (one type) enhances the uniformity of rubbing the knitted fabric.

[0005] The mounting assembly includes a fixed plate fixedly installed at the middle of the upper part of the material box. The lower middle part of the fixed plate has a mounting groove with a T-shaped cross-section and its opening facing downwards. A sliding frame is slidably fitted inside the mounting groove. The lower end of the sliding frame is fixedly connected to the upper end of the top plate. The sliding frame is composed of a circular plate and a rod at the center of the lower end of the circular plate. The fixed plate is equipped with a drive assembly for driving the sliding frame and its auxiliary mechanisms to rotate circumferentially, which can precisely control the position of the sliding frame.

[0006] The mounting assembly also includes several balls evenly distributed on the lower end face of the circular plate of the sliding frame. The balls roll in contact with the bottom wall of the mounting groove, reducing friction and improving smoothness.

[0007] The drive assembly includes a circular groove disposed on the top wall of the mounting slot. The axis of the circular groove is eccentrically disposed with respect to the axis of the mounting slot. A drive plate is rotatably connected to the axis of the circular groove. A rotating column disposed at the lower end of the drive plate is rotatably connected to a rotating hole disposed at the upper axis of the sliding frame, thereby providing a stable output source.

[0008] The drive assembly also includes a motor mounted on the upper part of the fixed plate. The output shaft of the motor is fixedly connected to the end of the rotation axis of the drive plate, which guides the knitted fabric path.

[0009] It also includes guide components, which include rotating rollers that are symmetrically rotatably connected to both ends of the upper side of the hopper.

[0010] The guide also includes guide rollers that are symmetrically rotated and connected to both ends of the inner cavity of the material box. The two guide rollers are located above the base plate, and the lowest end of the guide rollers is lower than the highest end of the ball, which guides and positions the knitted fabric to prevent it from sagging.

[0011] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: 1. The sliding frame rotates slightly. During this process, the staggered distribution of the first and second rubbing balls on the bottom and top plates of the material box continuously applies a uniform rubbing force to the knitted fabric. The rubbing ball array forms multi-point three-dimensional friction through staggered contact, which effectively breaks the dye liquor interface layer on the fabric surface, allowing dye molecules to quickly penetrate into the internal gaps of the fiber. At the same time, the force distribution characteristics of rolling friction instead of planar extrusion can precisely control the intensity of the action, ensuring uniform dye penetration while avoiding damage to the fiber structure. Ultimately, it achieves consistent dyeing depth and improved color fastness, significantly reducing color difference and color spot problems caused by uneven dye liquor retention on the surface. Especially in continuous production, it maintains the stability of dyeing uniformity, ensuring that the dye liquor fully contacts the fiber while avoiding excessive stretching.

[0012] 2. When the motor starts, its output shaft drives the drive plate to rotate synchronously. Due to the eccentric design between the axis of the drive plate and the axis of the sliding frame, the sliding frame rotates slightly in conjunction with the motor, thus achieving rapid driving.

[0013] 3. The relevant operators will pass the knitted fabric to be dyed around the guide roller on one side from the top, and then pass it out from the bottom of the rotating roller near that side. Then, the fabric will enter between the bottom plate and the top plate. After that, the fabric will pass out from the bottom of the rotating roller on the other side. Finally, the fabric will pass around the guide roller on the other side and be placed on top and installed with the external winding, guiding the knitted fabric to form a path with moderate tension.

[0014] 4. The top plate rotates smoothly in the T-shaped mounting groove via ball bearings, which reduces the coefficient of friction with the mounting groove and thus ensures stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a knitted fabric dyeing device according to the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an enlarged structural diagram of point A in this utility model; Figure 4 This is an enlarged structural diagram of section B of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 100, material bin; 200, bottom plate; 201, ball rolling one; 202, top plate; 203, ball rolling two; 204, fixing plate; 205, mounting groove; 206, sliding frame; 207, ball bearing; 300, drive plate; 301, motor; 400, rotating roller; 401, guide roller. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0018] This embodiment provides a dyeing apparatus for knitted fabrics, such as... Figure 1-4The diagram shows a material bin 100 and a dyeing mechanism disposed therein. The dyeing mechanism includes a bottom plate 200 disposed at the lower end of the inner cavity of the material bin 100. The upper end of the bottom plate 200 has an array of rolled balls 201. A top plate 202 is mounted on the upper end of the inner cavity of the material bin 100 via an mounting assembly. The lower end of the top plate 202 has an array of rolled balls 203. The rolled balls 203 are staggered from the rolled balls 201. The mounting assembly includes components fixedly mounted on the material bin 100. The upper middle part of the fixed plate 204 has a mounting groove 205 at the lower middle part. The mounting groove 205 has a T-shaped cross-section and its opening faces downward. A sliding frame 206 is slidably fitted in the mounting groove 205. The lower end of the sliding frame 206 is fixedly connected to the upper end of the top plate 202. The sliding frame 206 is composed of a circular plate and a rod at the lower axis of the circular plate. The fixed plate 204 is provided with a drive assembly for driving the sliding frame 206 and its auxiliary mechanism to rotate circumferentially.

[0019] The sliding frame 206 rotates slightly. During this process, the staggered distribution of the ball-shaped beads 201 and 203 on the bottom plate 200 and top plate 202 inside the material box 100 continuously applies a uniform rubbing force to the knitted fabric. The ball-shaped beads form a multi-point three-dimensional friction through staggered contact, which effectively breaks the dye liquor interface layer on the fabric surface, allowing dye molecules to quickly penetrate into the internal gaps of the fibers. At the same time, the force distribution characteristics of rolling friction replacing planar extrusion can precisely control the intensity of the action, ensuring uniform dye penetration while avoiding damage to the fiber structure. Ultimately, this achieves consistent dyeing depth and improved color fastness, significantly reducing color difference and color spots caused by uneven dye liquor retention on the surface. Especially in continuous production, it maintains the stability of dyeing uniformity, ensuring that the dye liquor fully contacts the fiber while avoiding excessive stretching.

[0020] like Figure 2-3 As shown, the mounting assembly also includes a plurality of balls 207 evenly distributed on the lower end face of the circular plate of the sliding frame 206, and the plurality of balls 207 rollingly engaging with the bottom wall surface of the mounting groove 205.

[0021] The top plate 202 rotates smoothly in the T-shaped mounting groove 205 via the ball bearings 207, which reduces the coefficient of friction with the mounting groove 205, thereby ensuring stability.

[0022] like Figure 1-3 As shown, the drive assembly includes a circular groove disposed on the top wall of the mounting groove 205. The axis of the circular groove is eccentrically disposed with respect to the axis of the mounting groove 205. A drive plate 300 is rotatably connected to the axis of the circular groove. A rotating column disposed at the lower end of the drive plate 300 is rotatably connected to a rotating hole disposed at the upper axis of the sliding frame 206. The drive assembly also includes a motor 301 disposed on the upper end of the fixed plate 204. The output shaft of the motor 301 is fixedly connected to the rotating shaft end of the drive plate 300.

[0023] When the motor 301 starts, its output shaft drives the drive plate 300 to rotate synchronously. Due to the eccentric design between the axis of the drive plate 300 and the axis of the sliding frame 206, the sliding frame 206 rotates slightly in conjunction with the motor.

[0024] like Figure 1-4 As shown, it also includes a guide component, which includes a rotating roller 400 symmetrically rotatably connected to both ends of the upper side of the material box 100, and a guide roller 401 symmetrically rotatably connected to both ends of the inner cavity of the material box 100. The two guide rollers 401 are located above the bottom plate 200, and the lowermost end of the guide roller 401 is lower than the uppermost end of the ball-rolling 201.

[0025] First, the operators take the knitted fabric to be dyed and pass it around the guide roller 401 on one side from the top, then out from the bottom of the rotating roller 400 near that side, and then into the space between the bottom plate 200 and the top plate 202. After that, the fabric is passed out from the bottom of the rotating roller 400 on the other side, and finally the fabric is passed around the guide roller 401 on the other side and placed on top and wound up with the outside, guiding the knitted fabric to form a path with moderate tension.

[0026] The working principle of the knitted fabric dyeing device provided by this utility model is as follows: First, the operator takes the knitted fabric to be dyed and passes it around the guide roller 401 on one side, then exits it from the bottom of the rotating roller 400 near that side, and then enters the space between the bottom plate 200 and the top plate 202. Next, the fabric exits from the bottom of the rotating roller 400 on the other side, and finally passes it around the guide roller 401 on the other side and is placed on top and wound up externally, guiding the knitted fabric to form a path with moderate tension. Then, the dyeing solution is added into the feed hopper 100. Subsequently, the motor 301 is started, and its output shaft drives the drive plate 300 to rotate synchronously. Due to the eccentric design between the axis of the drive plate 300 and the axis of the sliding frame 206, the sliding frame 206 rotates slightly in conjunction with the drive plate 202, while the top plate 202 rotates through the roller... The bead 207 rotates smoothly in the T-shaped mounting groove 205. During this process, the staggered distribution of the ball 1 201 and ball 2 203 on the bottom plate 200 and top plate 202 in the material box 100 continuously applies a uniform rubbing force to the knitted fabric. The ball array forms multi-point three-dimensional friction through staggered contact, which effectively breaks the dye liquor interface layer on the fabric surface, promotes the rapid penetration of dye molecules into the internal gaps of the fiber, and at the same time, the force distribution characteristics of rolling friction instead of planar extrusion can precisely control the intensity of action, ensuring uniform dye wetting while avoiding damage to the fiber structure. Ultimately, it achieves consistent dyeing depth and improved color fastness, significantly reducing color difference and color spot problems caused by uneven dye liquor retention on the surface. Especially in continuous production, it maintains the stability of dyeing uniformity, ensuring that the dye liquor fully contacts the fiber while avoiding excessive stretching.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A dyeing apparatus for knitted fabrics, characterized in that: The device includes a material box (100) and a dyeing mechanism disposed therein. The dyeing mechanism includes a bottom plate (200) disposed at the lower end of the inner cavity of the material box (100). The upper end of the bottom plate (200) is provided with a plurality of rubbing balls (201) arranged in an array. The upper end of the inner cavity of the material box (100) is provided with a top plate (202) installed by an installation assembly. The lower end of the top plate (202) is provided with a plurality of rubbing balls (203) arranged in an array.

2. The knitted fabric dyeing apparatus as described in claim 1, characterized in that: Several of the aforementioned ball-chopping second (203) and several ball-chopping first (201) are misaligned.

3. The knitted fabric dyeing apparatus as described in claim 1, characterized in that: The mounting assembly includes a fixing plate (204) fixedly disposed at the middle of the upper end of the material box (100). The middle of the lower end of the fixing plate (204) is provided with a mounting groove (205). The mounting groove (205) has a T-shaped cross-section and its opening faces downward. A sliding frame (206) is slidably fitted inside the mounting groove (205). The lower end of the sliding frame (206) is fixedly connected to the upper end of the top plate (202). The sliding frame (206) is composed of a circular plate and a rod at the lower end of the circular plate. The fixing plate (204) is provided with a driving assembly for driving the sliding frame (206) and its auxiliary mechanisms to rotate circumferentially.

4. The knitted fabric dyeing apparatus as described in claim 3, characterized in that: The mounting assembly also includes a plurality of balls (207) evenly arranged on the lower end face of the circular plate of the sliding frame (206), and the plurality of balls (207) rollingly engage with the bottom wall of the mounting groove (205).

5. The knitted fabric dyeing apparatus as described in claim 3, characterized in that: The drive assembly includes a circular groove disposed on the top wall of the mounting groove (205), the axis of which is eccentrically disposed with respect to the axis of the mounting groove (205), and a drive plate (300) is rotatably connected to the axis of the circular groove. A rotating column disposed at the lower end of the drive plate (300) is rotatably connected to a rotating hole disposed at the upper axis of the sliding frame (206).

6. The knitted fabric dyeing apparatus as described in claim 5, characterized in that: The drive assembly also includes a motor (301) disposed on the upper end of the fixed plate (204), wherein the output shaft of the motor (301) is fixedly connected to the end of the rotation axis of the drive plate (300).

7. The knitted fabric dyeing apparatus as described in claim 1, characterized in that: It also includes a guide, which includes a rotating roller (400) symmetrically rotatably connected to both ends of the upper side of the hopper (100).

8. The knitted fabric dyeing apparatus as described in claim 7, characterized in that: The guide also includes guide rollers (401) that are symmetrically rotatably connected to both ends of the inner cavity of the material box (100). The two guide rollers (401) are located above the bottom plate (200), and the lowest end of the guide rollers (401) is lower than the highest end of the ball-rubbing one (201).

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