Coated paper dyeing device

By adopting a dye storage hopper and a stirring mechanism in the coated paper dyeing device, the problem of uneven dyeing caused by the drop of dye liquid level during the dyeing process is solved, and a uniform dyeing effect of the coated cardboard is achieved.

CN223304774UActive Publication Date: 2025-09-05ZHEJIANG GUANZU PAPER CO LTD
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Patent Information

Application Number
CN202422524219.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-09-05
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

In existing coated cardboard dyeing devices, as the dyeing process proceeds, the dye level in the dyeing tank drops, resulting in less contact between the dye roller and the dye, and less dye picked up, resulting in uneven dyeing and color difference.

Method used

The dye storage hopper design is adopted, including the hopper body partition plate and the limit partition plate, combined with the dye circulation pump and the stirring shaft to keep the dye liquid level constant, and prevent the dye from coagulation and precipitation through the stirring shaft to ensure uniform dye supply.

Benefits of technology

Maintain a stable dye level during the dyeing process to avoid differences in dyeing effects and ensure uniform dyeing and quality stability of coated cardboard.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a coated paper dyeing device, which relates to the technical field of coated paperboard dyeing, and is characterized in that the right surface of a dyeing machine main body is fixedly connected with a stirring driving piece through a bolt, and the interior of a dye storage hopper is fixedly connected with a dye circulating pump; two dye stirring shafts are rotationally connected to the interior of the dye circulating pump through bearings and sealing rings, and the right end of the dye stirring shaft located in the front is connected with a rotating shaft of a stirring driving part through a coupler. The soaking depth of the material-sticking cotton cloth roller is not changed, so that the amount of dye stuck by the material-sticking cotton cloth roller is not changed when the dyeing work is carried out, and the problems that the liquid level of the dye in the dyeing tank is gradually reduced along with the dyeing, the contact between the dyeing roller and the dye is gradually reduced, and the amount of the stuck dye is reduced are avoided; and the dyeing effect is different along with the dyeing work.
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Description

Technical Field

[0001] The utility model relates to the technical field of coated cardboard dyeing, in particular to a coated paper dyeing device. Background Art

[0002] Coated paper is a type of paper with a coating on its surface. It is widely used in printing, packaging and other industries. When dyeing coated cardboard, a special dyeing device is required. The dyeing device generally consists of a dyeing roller, a cardboard conveying mechanism, a dyeing trough and other mechanisms. When dyeing, the coated cardboard is transported at a uniform speed through the conveying mechanism, and the dye inside the dyeing trough is picked up by the dyeing roller, and the dye is evenly applied to the surface of the coated paper through rotation to evenly dye the coated paper.

[0003] In the existing coated cardboard dyeing device, dye is stored in a dyeing tank. As dyeing progresses, the dye liquid level in the dyeing tank gradually decreases, the contact between the dyeing roller and the dye gradually decreases, and the amount of dye picked up will decrease accordingly, resulting in differences in the dyeing effect as the dyeing work progresses, which easily increases the dyeing color difference of the coated cardboard. Utility Model Content

[0004] The embodiments of the present disclosure relate to a coated paper dyeing device to solve the problem that in the prior art coated cardboard dyeing device, dye is stored in a dyeing tank. As dyeing progresses, the dye liquid level in the dyeing tank gradually decreases, the contact between the dyeing roller and the dye gradually decreases, and the amount of dye picked up decreases accordingly, resulting in differences in the dyeing effect as the dyeing work progresses, which easily increases the dyeing color difference of the coated cardboard.

[0005] According to a first aspect of the present disclosure, a coated paper dyeing device is provided, which specifically includes a dyeing machine main body, on which a cotton cloth stick, a dye transfer roller, a coating roller and a coated paper conveying roller are installed. The dyeing machine main body has a built-in driving mechanism, which drives the cotton cloth stick, the dye transfer roller, the coating roller and the coated paper conveying roller to rotate. A dye storage hopper is installed inside the dyeing machine main body, the dye storage hopper is located below the cotton cloth stick, and the lower half of the cotton cloth stick is located inside the dye storage hopper. A stirring drive member is fixedly connected to the right surface of the dyeing machine main body by bolts, a dye circulation pump is fixedly connected to the interior of the dye storage hopper, and two dye stirring shafts are rotatably connected to the interior of the dye circulation pump through bearings and sealing rings. The right end of the dye stirring shaft located in the front is connected to the rotating shaft of the stirring drive member through a coupling.

[0006] In at least some embodiments, the dye storage hopper is a container with a rectangular structure and an upward opening. A hopper body partition plate is fixedly connected to the interior of the dye storage hopper. The hopper body partition plate is parallel to the bottom surface of the dye storage hopper and is located at the middle height inside the dye storage hopper.

[0007] In at least some embodiments, the rear edge of the bucket body partition plate is fixedly connected to the inner rear wall of the dye storage bucket, the two side edges of the bucket body partition plate are connected to the inner side walls of the dye storage bucket, and a limiting partition plate is fixedly connected to the inside of the dye storage bucket, and the limiting partition plate is perpendicular to the bucket body partition plate.

[0008] In at least some embodiments, the lower edge of the limiting partition is fixedly connected to the front edge of the upper surface of the bucket body partition plate, the left edge and the right edge of the limiting partition are respectively connected to the left wall and the right wall inside the dye storage bucket, and a limiting discharge port is opened through the front and back of the limiting partition.

[0009] In at least some embodiments, the height of the position-limiting discharge port is 3 mm to 5 mm higher than the lower section height of the cotton cloth stick, and a dye input port is provided in front of the upper surface of the dye storage hopper.

[0010] In at least some embodiments, the input pipe of the dye circulation pump is located below the bucket body partition plate, the output pipe of the dye circulation pump is located above the bucket body partition plate, the input pipe port of the dye circulation pump is in contact with the inner bottom surface of the dye storage bucket, and four input pipe edge openings are provided on the edge of the input pipe port of the dye circulation pump.

[0011] In at least some embodiments, the two dye stirring shafts are parallel to each other, spiral blades with a spiral structure are fixedly connected to the outer surface of the dye stirring shaft, a synchronous sprocket is fixedly connected to the right end of the dye stirring shaft, and the synchronous sprockets of the two dye stirring shafts are connected by a chain.

[0012] The utility model provides a coated paper dyeing device, which has the following beneficial effects:

[0013] In the dyeing device of the present invention, the dye liquid level inside the dye storage bucket for storing dye can be kept constant, and the immersion depth of the cotton cloth stick for dipping the material remains unchanged, so that the amount of dye dipped by the cotton cloth stick remains unchanged during the dyeing work, thereby avoiding the situation where the dye liquid level in the dyeing tank gradually decreases as the dyeing progresses, the contact between the dyeing roller and the dye gradually decreases, and the amount of dye dipped decreases accordingly, resulting in differences in the dyeing effect as the dyeing work progresses.

[0014] In addition, an auxiliary stirring and dredging mechanism for the dye is provided inside the dye storage bucket of the present application. The dye inside the dye storage bucket is moved and flipped by the rotation of the two dye stirring shafts to avoid dye coagulation, precipitation or deterioration. A dye circulation pump is provided to make the dye flow at a uniform speed inside the dye storage bucket, maintaining the dye with good fluidity, which is conducive to staining the outer surface of the cotton cloth stick and participating in the dyeing work of the coated cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached figure:

[0018] Figure 1 A schematic diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic diagram showing the structure of the roller distribution of the present application is shown;

[0020] Figure 3 The structural diagram on the right side of this application is shown;

[0021] Figure 4 It shows a schematic structural diagram of the present invention in which the cotton cloth stick and the dye storage bucket are combined;

[0022] Figure 5 It shows a schematic structural diagram of the present invention in which the cotton cloth stick and the dye storage bucket are separated;

[0023] Figure 6 Shows a schematic diagram of the structure inside the dye storage hopper of the present application;

[0024] Figure 7 Shows this application Figure 6 A schematic diagram of the front view of the structure;

[0025] Figure 8 The schematic diagram of the structure of the limited discharge port of the present application is shown.

[0026] Reference Signs List

[0027] 1. Dyeing machine body; 2. Cotton cloth stick; 3. Dye transfer roller; 4. Coating roller; 5. Coated paper conveying roller; 6. Dye storage hopper; 601. Bucket body partition plate; 602. Limiting partition plate; 603. Limiting discharge port; 604. Dye input port; 7. Agitation drive; 8. Dye circulation pump; 801. Input pipe edge port; 9. Dye agitation shaft; 901. Spiral blade; 902. Synchronous sprocket. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1 to 8 :

[0030] The utility model proposes a coated paper dyeing device, including a dyeing machine main body 1, on which a cotton cloth dip stick 2, a dye transfer roller 3, a coating roller 4 and a coated paper conveying roller 5 are installed. The dyeing machine main body 1 has a built-in driving mechanism, which drives the cotton cloth dip stick 2, the dye transfer roller 3, the coating roller 4 and the coated paper conveying roller 5 to rotate. A dye storage hopper 6 is installed inside the dyeing machine main body 1, and the dye storage hopper 6 is located below the cotton cloth dip stick 2, and the lower half of the cotton cloth dip stick 2 is located inside the dye storage hopper 6. The utility model is characterized in that a stirring driving member 7 is fixedly connected to the right surface of the dyeing machine main body 1 by bolts, and a dye circulation pump 8 is fixedly connected to the inside of the dye storage hopper 6. 8 has two dye stirring shafts 9 connected to the inside through bearings and sealing rings, and the right end of the dye stirring shaft 9 located in the front is connected to the rotating shaft of the stirring drive part 7 through a coupling; the dye is stored in the dye storage bucket 6, and the cotton cloth stick 2 is partially immersed in the dye. As the dyeing machine body 1 drives the cotton cloth stick 2 to rotate, the cotton cloth stick 2 transports the dye inside the dye storage bucket 6 to the outer surface of the dye transfer roller 3, and as the dye transfer roller 3 rotates, the dye on the outer surface of the dye transfer roller 3 is evenly smeared on the outer surface of the coating roller 4. As the coating roller 4 and the coated paper conveying roller 5 rotate, and the coated cardboard is conveyed at a uniform speed, the dye on the outer surface of the coating roller 4 is evenly contacted with the coated cardboard to achieve dyeing.

[0031] In the embodiment of the present disclosure, the dye storage bucket 6 is a container with a rectangular structure and an opening facing upward. A bucket body partition plate 601 is fixedly connected to the interior of the dye storage bucket 6. The bucket body partition plate 601 is parallel to the bottom surface of the dye storage bucket 6 and is located at the middle height of the interior of the dye storage bucket 6; the rear edge of the bucket body partition plate 601 is fixedly connected to the inner rear wall of the dye storage bucket 6, and the two side edges of the bucket body partition plate 601 are connected to the inner side walls of the dye storage bucket 6. A limiting partition plate 602 is fixedly connected to the interior of the dye storage bucket 6, and the limiting partition plate 602 is perpendicular to the bucket body partition plate 601; the lower edge of the limiting partition plate 602 is fixedly connected to the front edge of the upper surface of the bucket body partition plate 601, and the left and right edges of the limiting partition plate 602 are respectively connected to the left and right walls of the interior of the dye storage bucket 6, and a limiting discharge port 603 is provided on the limiting partition plate 602 from front to back, and the height of the limiting discharge port 603 is 3m higher than the height of the lower cross-section of the cotton cloth stick 2. m-5mm, a dye input port 604 is provided in front of the upper surface of the dye storage bucket 6; it can be seen that the dye in the space behind the limiting partition 602 inside the dye storage bucket 6 is in direct contact with the cotton cloth stick 2, and the cotton cloth stick 2 is partially immersed in the dye in the space behind the limiting partition 602. The setting of the limiting discharge port 603 limits the dye in the space behind the limiting partition 602, so that the dye above the limiting discharge port 603 enters the rear of the limiting partition 602 and is stored inside the dye storage bucket 6. As the cotton cloth stick 2 transfers and uses the dye, the dye at the bottom of the bucket body partition 601 is slowly and continuously transported to the top of the bucket body partition 601 through the dye circulation pump 8, and the dye is continuously replenished, so that the dye above the bucket body partition 601 maintains a fixed liquid level, and the volume of the cotton cloth stick 2 immersed in the dye is kept constant, avoiding changes in the dye liquid level affecting the amount of dye transported by the cotton cloth stick 2.

[0032] In the embodiment of the present disclosure, the input pipe of the dye circulation pump 8 is located below the bucket body partition plate 601, and the output pipe of the dye circulation pump 8 is located above the bucket body partition plate 601. The input pipe port of the dye circulation pump 8 is in contact with the inner bottom surface of the dye storage bucket 6, and four input pipe edge openings 801 are opened on the edge of the input pipe port of the dye circulation pump 8; the interior of the dye storage bucket 6 is divided into two spaces by the arrangement of the bucket body partition plate 601 and the limiting partition plate 602. The space in contact with the cotton cloth stick 2 is located on the limiting partition plate 602. 02, the dye is stored in the space behind the limiting partition 602, and the dye in the space behind the limiting partition 602 is limited by the setting of the limiting discharge port 603, so that the dye above the limiting discharge port 603 enters the rear of the limiting partition 602 and is stored inside the dye storage bucket 6. The dye at the bottom of the dye storage bucket 6 is transported to the top of the bucket body partition plate 601 at a uniform speed through the action of the dye circulation pump 8, and the dye is slowly replenished to keep the dye in the space behind the limiting partition 602 constant.

[0033] Example 2: Based on Example 1, the two dye stirring shafts 9 are parallel to each other, and a spiral blade 901 with a spiral structure is fixedly connected to the outer surface of the dye stirring shaft 9. The right end of the shaft body of the dye stirring shaft 9 is fixedly connected to a synchronous sprocket 902. The synchronous sprockets 902 of the two dye stirring shafts 9 are connected by a chain, and the two dye stirring shafts 9 are driven to rotate by the stirring drive 7 to stir and flip the dye inside the dye storage bucket 6 to prevent the dye from coagulating, precipitating or deteriorating.

[0034] The working principle of this embodiment is as follows: first, the driving mechanism built into the dyeing machine body 1 drives the cotton cloth stick 2, the dye transfer roller 3, the coating roller 4 and the coated paper conveying roller 5 to rotate, so that the coated paperboard passes through the coating roller 4 and the coated paper conveying roller 5, and the coated paperboard is conveyed by the coating roller 4 and the coated paper conveying roller 5, and dye is added to the inside of the dye storage bucket 6 through the dye input port 604, and the dye inside the dye storage bucket 6 is conveyed to the space formed by the bucket body partition plate 601 and the limit partition plate 602 through the dye circulation pump 8, so that the lower part of the outer surface of the cotton cloth stick 2 is immersed in the dye, and the dye is input into the space formed by the bucket body partition plate 601 and the limit partition plate 602 as the cotton cloth stick 2 rotates. The dye is sent to the outer surface of the dye transfer roller 3 and further spread evenly. The dye is evenly spread on the outer surface of the coating roller 4 through the contact and friction between the dye transfer roller 3 and the coating roller 4, and the dye is evenly transported to the outer surface of the colored cardboard. In this process, the dye circulation pump 8 continuously transports the dye to the space above the bucket body partition plate 601 to keep the depth of the cotton cloth stick 2 immersed in the dye unchanged, thereby improving the uniformity of the dye feeding during the dyeing process. The two dye stirring shafts 9 are driven to rotate by the stirring drive 7 to stir the dye inside the dye storage bucket 6, slowing down the rate of dye coagulation, precipitation or deterioration, and ensuring the stability and consistency uniformity of the dye.

[0035] In this article, there are several points to note:

[0036] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0038] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A coated paper dyeing device comprising: The invention relates to a dyeing machine body (1), wherein a cotton cloth stick (2), a dye transfer roller (3), a coating roller (4) and a coated paper conveying roller (5) are installed on the dyeing machine body (1), and a driving mechanism is built in the dyeing machine body (1), and the driving mechanism drives the cotton cloth stick (2), the dye transfer roller (3), the coating roller (4) and the coated paper conveying roller (5) to rotate. A dye storage hopper (6) is installed inside the dyeing machine body (1), and the dye storage hopper (6) is located below the cotton cloth stick (2), and the lower half of the cotton cloth stick (2) is located inside the dye storage hopper (6). The invention is characterized in that a stirring drive member (7) is fixedly connected to the right surface of the dyeing machine body (1) by bolts, a dye circulation pump (8) is fixedly connected to the inside of the dye storage hopper (6), and two dye stirring shafts (9) are rotatably connected to the inside of the dye circulation pump (8) through bearings and sealing rings, and the right end of the dye stirring shaft (9) located in the front is connected to the rotating shaft of the stirring drive member (7) through a coupling.

2. A coated paper dyeing device according to claim 1, characterized in that: A bucket body partition plate (601) is fixedly connected to the interior of the dye storage bucket (6), and the bucket body partition plate (601) is parallel to the bottom surface of the dye storage bucket (6).

3. A coated paper dyeing device according to claim 2, characterized in that: The rear edge of the bucket body partition plate (601) is fixedly connected to the inner rear wall of the dye storage bucket (6), the two side edges of the bucket body partition plate (601) are connected to the inner side walls of the dye storage bucket (6), and the interior of the dye storage bucket (6) is fixedly connected to a limiting partition plate (602).

4. A coated paper dyeing device according to claim 3, characterized in that: The lower edge of the limiting partition (602) is fixedly connected to the front edge of the upper surface of the bucket body partition plate (601), and a limiting discharge port (603) is provided through the front and rear of the limiting partition (602).

5. A coated paper dyeing device according to claim 4, characterized in that: The height of the position-limiting discharge port (603) is 3 mm to 5 mm higher than the lower section of the cotton cloth stick (2), and a dye input port (604) is provided in front of the upper surface of the dye storage hopper (6).

6. A coated paper dyeing device according to claim 2, characterized in that: The input pipe of the dye circulation pump (8) is located below the bucket body partition plate (601), and the output pipe of the dye circulation pump (8) is located above the bucket body partition plate (601). The input pipe port of the dye circulation pump (8) is in contact with the inner bottom surface of the dye storage bucket (6), and four input pipe edge openings (801) are opened on the edge of the input pipe port of the dye circulation pump (8).

7. The coated paper dyeing device according to claim 1, characterized in that: The two dye stirring shafts (9) are parallel to each other, a spiral blade (901) with a spiral structure is fixedly connected to the outer surface of the dye stirring shaft (9), a synchronous sprocket (902) is fixedly connected to the right end of the shaft body of the dye stirring shaft (9), and the synchronous sprockets (902) of the two dye stirring shafts (9) are connected by a chain.