Dyeing device for chrome-free tanned leather

By incorporating a filtration assembly and a motor-driven rotating drum into the dyeing device, multi-stage filtration and recycling of the dyeing solution are achieved, solving the problem of difficult impurity removal in existing technologies and improving dyeing efficiency and environmental friendliness.

CN223705624UActive Publication Date: 2025-12-23LONG FENG GE LE MEI FASHION CO LTD
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Patent Information

Application Number
CN202520259208.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-23
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing dyeing equipment lacks filtration components, which makes it impossible to effectively remove impurities from the dyeing solution, prevents recycling, wastes resources, and does not conform to the industry trend of energy conservation and emission reduction.

Method used

A filtration assembly is installed in the dyeing device, including first and second filter screens, with staggered filter holes for multi-stage filtration. Combined with a motor-driven rotating drum, the dyeing solution is recycled, ensuring the stability of the device.

Benefits of technology

It effectively removes impurities from the dyeing solution, enables the recycling of the dyeing solution, reduces resource waste, meets the requirements of green development, and ensures the stability and efficiency of the dyeing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dyeing, and discloses a dyeing device for chrome-free tanned leather, which comprises a base, a support frame, an access port, a dyeing component, a filtering component and a mounting component, a supporting frame is fixedly mounted on the base, a dyeing assembly is fixedly embedded in the supporting frame, and the access port is fixedly formed in the dyeing assembly; the filtering assembly is fixedly arranged on the dyeing assembly, and the mounting assembly is fixedly arranged at the end part of the dyeing assembly; the filtering assembly is arranged on the dyeing assembly, the first filtering net and the second filtering net conduct multi-stage filtering through the filtering holes which are formed in a staggered mode, impurities in dyeing liquid can be removed, resource waste is avoided, a rolling cylinder of the dyeing assembly is driven by a motor to rotate through a center rotating shaft, the dyeing liquid is input in cooperation with an access port, and the dyeing efficiency is improved. A fixing cover of the mounting assembly is connected with a fixing raised head in a matched manner, and a mounting cover is fixed on a central rotating shaft through a screw, so that stable connection is ensured, and stable dyeing work is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to dyeing technical field, concretely is a dyeing device for chrome-free tanning leather. BACKGROUND

[0002] The patent document with the announcement number CN115672083B discloses a dye mixing device for environment-friendly leather dyeing, relates to the field of leather processing, and comprises a mixing tank with an opening upward, a supporting leg fixedly arranged at the bottom side of the mixing tank, a discharge valve arranged at the bottom wall of the mixing tank, and a lifting adjusting mechanism arranged in the mixing tank, wherein the lifting adjusting mechanism comprises a limiting groove equidistantly arranged on the inner wall of the mixing tank, a rack fixedly arranged in the limiting groove, and a lifting ring slidingly arranged in the mixing tank.

[0003] However, the above-mentioned scheme and the prior art lack a filtering assembly in some dyeing devices, which can easily lead to the failure to effectively remove impurities in the dyeing liquid during use. Due to the lack of a filtering circulation mechanism, the dyeing liquid cannot be recycled, which can easily cause resource waste. Therefore, in order to meet the current industry trend of energy saving and emission reduction and green development, the dyeing device can be improved and optimized.

[0004] Therefore, the utility model provides a dyeing device for chrome-free tanning leather for solving the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a dyeing device for chrome-free tanning leather to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dyeing device for chrome-free tanning leather, comprising a base, a supporting frame, an inlet, a dyeing assembly, a filtering assembly, and a mounting assembly.

[0007] The supporting frame is fixedly connected to the base, and the dyeing assembly is fixedly connected to the inside of the supporting frame.

[0008] The filtering assembly is fixedly arranged on the dyeing assembly, and the mounting assembly is fixedly arranged at the end of the dyeing assembly.

[0009] Preferably, the rolling cylinder in the dyeing assembly is adaptively connected to the inside of the supporting frame, and the inlet is fixedly arranged at the bottom end of one side of the rolling cylinder.

[0010] Preferably, the fixed protrusion in the dyeing assembly is fixedly arranged at one side end of the rolling cylinder, and a central rotating shaft is fixedly connected to the other side end of the rolling cylinder, and the central rotating shaft is driven by a motor.

[0011] Preferably, the first filter screen in the filtering assembly is adaptively clamped in the rolling cylinder, and the first filter screen is uniformly provided with first filter holes, and the first filter screen is adaptively clamped on the first clamping groove.

[0012] Preferably, the second filter screen in the filtering assembly is uniformly provided with second filter holes, and the second filter holes are staggered with the first filter holes, and the second filter screen is adaptively clamped on the second clamping groove.

[0013] Preferably, the fixing cover in the mounting assembly is adaptively fixedly connected to the fixed protrusion, the fixing cover is provided with a fixing hole in the middle, the fixing hole is adaptively embedded with the central rotating shaft, the central rotating shaft is fixedly provided with a mounting cover, and the mounting cover is fixedly connected by a screw.

[0014] Compared with the prior art, the dyeing assembly is provided with the filtering assembly, the first filter screen and the second filter screen are provided with staggered filter holes for multi-stage filtering, impurities in the dyeing liquid can be effectively removed, the dyeing liquid can be recycled, resource waste is avoided, the industry trend of energy saving and emission reduction and green development is met, meanwhile, the rolling cylinder of the dyeing assembly is driven to rotate by the motor-driven central rotating shaft, the dyeing liquid is input through the inlet, and the leather can be fully dyed, in addition, the fixing cover of the mounting assembly is adaptively connected to the fixed protrusion, the mounting cover is fixed on the central rotating shaft by a screw, the connection of the components of the device is stable, and the dyeing work is stably performed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a mounting assembly exploded view of the utility model;

[0017] Figure 3 It is a whole structure front view of the utility model;

[0018] Figure 4 It is a filtering assembly view of the utility model.

[0019] In the figure: base 1, support frame 2, access port 3, dyeing assembly 4, filtering assembly 5, mounting assembly 6, rolling cylinder 401, central rotating shaft 402, fixed protrusion 403, first filter screen 501, first filter hole 502, first clamping groove 503, second filter screen 504, second filter hole 505, second clamping groove 506, fixed cover 601, fixed hole 602, mounting cover 603. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme of the utility model carry on clear, complete description, and the advantage is more clear and distinct, the following combining the figure to the utility model embodiment carries on further detailed explanation, should understand, the specific embodiment described here is the utility model a part of embodiment, rather than all the embodiments, only use to explain the utility model embodiment, and does not use to limit the utility model embodiment, the all other embodiments of the ordinary skill in the art obtained without making the creative labor belongs to the range of the utility model protection, the following will be clear, complete description to the technical scheme in the utility model embodiment.

[0021] Embodiment one: please refer to Figures 1 to 2 A dyeing device for chrome-free tanning leather, comprising a base 1, a support frame 2, an access port 3, a dyeing assembly 4, a filtering assembly 5, and a mounting assembly 6. The support frame 2 is fixedly installed on the base 1, and the dyeing assembly 4 is fixedly embedded in the support frame 2. The access port 3 is fixedly arranged on the dyeing assembly 4. The filtering assembly 5 is fixedly arranged on the dyeing assembly 4, and the mounting assembly 6 is fixedly arranged at the end of the dyeing assembly 4.

[0022] The rolling cylinder 401 in the dyeing assembly 4 is adaptively embedded in the support frame 2, and the access port 3 is fixedly arranged at the bottom of one side of the rolling cylinder 401.

[0023] In use, the chrome-free tanning leather to be dyed is first placed in the rolling cylinder 401, and the prepared dyeing liquid is injected into the rolling cylinder 401 through the access port 3. Since the rolling cylinder 401 is adaptively embedded in the support frame 2, the support frame 2 provides stable support for the rolling cylinder 401, ensuring that the dyeing process can be carried out smoothly.

[0024] Embodiment two: based on embodiment one, please refer to Figures 2 to 3 The fixed protrusion 403 in the dyeing assembly 4 is fixedly arranged at one side of the end of the rolling cylinder 401, and the central rotating shaft 402 is fixedly connected to the other side of the end of the rolling cylinder 401, which is driven by a motor.

[0025] The first filter screen 501 in the filtering assembly 5 is adaptively clamped in the rolling cylinder 401, and the first filter holes 502 are uniformly arranged on the first filter screen 501. The first filter screen 501 is adaptively clamped in the first clamping groove 503.

[0026] In use, the motor is started to drive the central rotating shaft 402 to rotate, and then the rolling cylinder 401 starts to rotate, so that the leather continuously rolls in the dyeing liquid, fully contacts with the dyeing liquid, improves the dyeing effect, and in the dyeing process, impurities in the dyeing liquid flow to the first filter screen 501 along with the liquid, and the first filter hole 502 preliminarily filters the impurities, and since the first filter screen 501 is adaptively connected to the first clamping groove 503, the stability of the installation of the first filter screen 501 is ensured, so that the first filter screen 501 can continuously and effectively perform the filtering work.

[0027] Example three: on the basis of example two, please refer to Figures 3 to 4 , the second filter screen 504 in the filtering assembly 5 is uniformly provided with second filter holes 505, the second filter holes 504 are staggered with the first filter holes 502, and the second filter screen 504 is adaptively connected to the second clamping groove 506.

[0028] The fixing cover 601 in the mounting assembly 6 is adaptively and fixedly connected to the fixing protrusion 403, the fixing cover 601 is provided with a fixing hole 602 in the middle, the central rotating shaft 402 is adaptively embedded in the fixing hole 602, the mounting cover 603 is fixed on the central rotating shaft 402, and the mounting cover 603 is fixedly connected by screws.

[0029] In use, the dyeing liquid preliminarily filtered by the first filter screen 501 continuously flows to the second filter screen 504, the second filter holes 505 and the first filter holes 502 staggered with each other can further intercept smaller impurities, multi-stage filtering is realized, and the purity of the dyeing liquid is improved, meanwhile, the fixing cover 601 is adaptively connected to the fixing protrusion 403, the central rotating shaft 402 is embedded in the fixing hole 602, and the mounting cover 603 is fixed on the central rotating shaft 402 by screws, so that the stability of the overall structure of the dyeing assembly 4 is ensured, the parts are prevented from loosening during the rotation of the rolling cylinder 401, the dyeing work is ensured to continuously and stably proceed, after the dyeing is completed, the two filter screens can be disassembled, the dyed leather is taken out, and the filtering assembly is cleaned for next use.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A dyeing apparatus for chrome-free tanning leather, characterized in that: Includes a base (1), a support frame (2), an inlet (3), a dyeing assembly (4), a filter assembly (5), and an installation assembly (6); A support frame (2) is fixedly installed on the base (1), and a dyeing component (4) is fixedly embedded inside the support frame (2). The inlet (3) is fixedly set on the dyeing component (4). The filter assembly (5) is fixedly mounted on the dyeing assembly (4), and the mounting assembly (6) is fixedly mounted at the end of the dyeing assembly (4).

2. The dyeing apparatus for chrome-free tanning leather according to claim 1, characterized in that: The rolling cylinder (401) in the dyeing assembly (4) is adapted to be embedded inside the support frame (2), and an inlet (3) is fixedly provided on one side bottom of the rolling cylinder (401).

3. The dyeing apparatus for chrome-free tanning leather according to claim 2, characterized in that: The fixed protrusion (403) in the dyeing assembly (4) is fixedly disposed at one end of the rolling drum (401), and a central rotating shaft (402) is fixedly connected to the other end of the rolling drum (401). The central rotating shaft (402) is driven by a motor.

4. The dyeing apparatus for chrome-free tanning leather according to claim 2, characterized in that: The first filter screen (501) in the filter assembly (5) is adapted and snapped into the rotating drum (401). The first filter screen (501) is uniformly provided with first filter holes (502), and the first filter screen (501) is adapted and snapped into the first snap-fit ​​groove (503).

5. The dyeing apparatus for chrome-free tanning leather according to claim 4, characterized in that: The second filter screen (504) in the filter assembly (5) is uniformly provided with second filter holes (505), the second filter holes (504) and the first filter holes (502) are staggered, and the second filter screen (504) is adapted to be snapped into the second snap-fit ​​groove (506).

6. The dyeing apparatus for chrome-free tanning leather according to claim 3, characterized in that: The fixing cover (601) in the mounting assembly (6) is adapted to and fixedly connected to the fixing protrusion (403). The fixing cover (601) has a fixing hole (602) in the middle. A central rotating shaft (402) is adapted to be embedded in the fixing hole (602). The mounting cover (603) is fixed on the central rotating shaft (402). The mounting cover (603) is fixedly connected by screws.

Citation Information

Patent Citations

  • An environmentally friendly dye mixing device for leather dyeing

    CN115672083B