Coating liquid supplying and stirring device for carbonless copy paper

Abstract

The utility model discloses a carbonless copy paper coating liquid supply stirring device which comprises a tank body, a stirring paddle and a defoaming assembly, the defoaming assembly comprises a tray movably installed in the tank body, a floating disc is fixedly installed at the bottom of the tray, and a plurality of defoaming thorns used for puncturing foams are integrally formed on the tray. The connecting rod, the bottom ring, the top plate and the tray are matched to form the floating disc assembly in the tank body, the tray can directly act on a foam layer of coating liquid along with fluctuation of the liquid level, shearing force generated by high-speed rotation of the stirring paddle is matched with the defoaming thorns at the bottom of the tray to eliminate defoaming, so that the coating liquid flows more smoothly, stirring is more uniform, and the coating effect is better. Therefore, the coating liquid can be uniformly covered on the surface of the paper during coating, and the coating quality of the carbon paper is improved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking auxiliary equipment, specifically a carbonless copy paper coating liquid supply and stirring device. Background Technology

[0002] Carbonless copy paper, as an important office and commercial paper, is widely used in finance, logistics, office and many other fields. Its working principle involves microcapsules and a developer coated on the paper surface, achieving carbonless copying under pressure. During the production of carbonless copy paper, the uniformity and stability of the coating solution are crucial, directly affecting key performance indicators such as color development, clarity, and lifespan.

[0003] In conventional coating solution mixing devices, the high-speed rotation of the agitator draws air into the coating solution, and the surface tension and other properties of the coating solution itself make it difficult for air bubbles to break and escape quickly. The presence of foam seriously affects the quality of the coating solution because it occupies space, leading to uneven concentration in certain areas. During the coating process, the foam-containing coating solution cannot evenly cover the paper surface, easily causing inconsistent coating thickness. This results in uneven color development and blurry writing on the carbon paper during use, greatly reducing the quality and user experience of the carbon paper. Utility Model Content

[0004] The purpose of this invention is to provide a carbonless copy paper coating liquid supply and stirring device to solve the problem that conventional coating liquid stirring devices mentioned in the background art lack foam treatment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a carbonless copy paper coating liquid supply and stirring device, comprising a tank, a stirring paddle and a defoaming component, wherein the defoaming component comprises a tray movably installed in the tank, a floating plate fixedly installed at the bottom of the tray, and a plurality of defoaming spikes for puncturing foam integrally formed on the tray.

[0006] Preferably, the defoaming assembly includes a slide frame assembled from a bottom ring, a top plate, and several connecting rods, wherein the top of the top plate is fixedly connected to the top cover of the tank, and the tray is slidably mounted on the slide frame.

[0007] Preferably, the side of the tray is integrally formed with a plurality of upright lugs, and the side wall of the upright lugs is fixedly installed with U-bolts, and a through hole is formed between the U-bolts and the upright lugs for the connecting rod to pass through.

[0008] Preferably, the two sides of the plurality of upright ears extend downward to form mounting ears, and the floating plate is installed through the plurality of mounting ears.

[0009] Preferably, the corners of the tray are rounded for a smooth transition.

[0010] Preferably, the tray has a circular hole at its center for the stirring paddle to pass through.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention uses a connecting rod, bottom ring, top plate, and tray to form a floating plate assembly in the tank. The tray moves with the liquid surface and can directly act on the foam layer of the coating liquid. The shearing force generated by the high-speed rotation of the stirring paddle and the defoaming spikes at the bottom of the tray work together to eliminate defoaming, making the flow of the coating liquid smoother and the stirring more uniform. This ensures that the coating liquid can evenly cover the paper surface during coating, thus improving the coating quality of carbon paper. Attached Figure Description

[0013] Figure 1 This is a three-dimensional cross-sectional view of the tank body of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the defoaming component of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the defoaming component of this utility model.

[0016] Figure 4 This is an enlarged three-dimensional structural diagram of the tray of this utility model.

[0017] In the diagram: 1. Tank body; 2. Agitator; 3. Tray; 4. Connecting rod; 5. Bottom ring; 6. Top plate; 7. U-bolt; 8. Floating plate; 9. Lug; 10. Defoaming spike. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4This utility model provides a technical solution: a carbonless copy paper coating liquid supply and stirring device, including a tank 1, a stirring paddle 2, and a defoaming component. The top of the tank 1 is detachably equipped with a top cover. The top of the stirring paddle 2 passes through the top cover and is connected to the output end of the motor via a coupling. The blades at the bottom of the stirring paddle 2 are detachable. The above is prior art, and the principle will not be elaborated here. The defoaming component includes a tray 3 movably installed inside the tank 1. To avoid the tray 3 affecting the installation of the stirring paddle 2, a circular hole for the stirring paddle 2 to pass through is provided in the center of the tray 3. The corners of the tray 3 are all rounded for smooth transition. The defoaming component includes a slide frame assembled from a bottom ring 5, a top plate 6, and several connecting rods 4. The top of the top plate 6 is fixedly connected to the top cover of the tank 1. The tray 3 is slidably installed on the slide frame. Several upright ears 9 are integrally formed on the side of the tray 3. U-bolts 7 are fixedly installed on the side wall of the upright ears 9. The U-bolts 7 and the upright ears 9 are connected to each other. A through hole is formed between the tray 3 and the connecting rod 4. This design facilitates the assembly and disassembly of the tray 3 and reduces friction between the U-bolt 7 and the connecting rod 4, allowing the float 3 to slide flexibly on the carriage. Several vertical ears 9 extend downwards on both sides to form mounting ears, and the float 8 is installed between these mounting ears. The float 8 is fixedly installed at the bottom of the tray 3. The float 8 ensures that the tray 3 follows the liquid surface and remains in contact with the coating liquid foam layer. Regardless of changes in the liquid surface due to factors such as stirring intensity and material addition, the tray 3 can act on the foam area in a timely manner. Furthermore, several defoaming spikes 10 are integrally formed on the tray 8 to puncture the foam. When the tray 3 moves with the fluctuation of the liquid surface or the movement of the liquid generated by stirring, the defoaming spikes 10 can effectively puncture the foam, allowing the gas inside the foam to be released quickly, thereby accelerating the foam's rupture. Compared with relying solely on natural defoaming or ordinary stirring paddle defoaming, this design significantly improves defoaming efficiency. This application uses the connecting rod 4, bottom ring 5, top plate 6 and tray 3 to form a floating plate assembly in the tank 1. The tray 3 can directly act on the foam layer of the coating liquid as the liquid surface fluctuates. The shear force generated by the high-speed rotation of the stirring paddle 2 and the defoaming spikes 10 at the bottom of the tray 3 work together to eliminate defoaming, making the flow of the coating liquid smoother and the stirring more uniform. This ensures that the coating liquid can evenly cover the paper surface during coating and improves the coating quality of carbon paper.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbonless copy paper coating liquid supply and stirring device, characterized in that: The utility model relates to a kind of stirring tank, including tank body (1), stirring paddle (2) and defoaming assembly, the defoaming assembly includes tray (3) movably mounted in the tank body (1), the bottom of the tray (3) is fixedly installed with float plate (8), and the tray (3) is integrally formed with several defoaming prongs (10) for pricking bubble on it.

2. The carbonless copy paper coating liquid supplying and stirring device according to claim 1, characterized in that: The defoaming assembly includes carriage assembled by bottom ring (5), top plate (6) and several connecting rods (4), the top of the top plate (6) is fixedly connected with the top cover of the tank body (1), and the tray (3) is slidably installed on the carriage.

3. The carbonless copy paper coating liquid supplying and stirring device according to claim 2, characterized in that: The side edge of the tray (3) is integrally formed with several stand ears (9), the side wall of the stand ear (9) is fixedly installed with U-shaped bolt (7), and the U-shaped bolt (7) and the stand ear (9) form perforation for the connecting rod (4) to penetrate.

4. The carbonless copy paper coating liquid supplying and stirring device according to claim 3, characterized in that: The two sides of several stand ears (9) respectively extend downward and form mounting ear, and the float plate (8) is installed between several mounting ears.

5. The carbonless copy paper coating liquid supplying and stirring device according to claim 1, characterized in that: The corner connection of the tray (3) is all rounded and smoothly transitioned.

6. The carbonless copy paper coating liquid supplying and stirring device according to claim 1, characterized in that: The central position of the tray (3) is provided with a round hole for the stirring paddle (2) to penetrate.

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