Coating testing device for paper molding product

Abstract

The utility model provides a coating testing device for a paper molding product. The coating testing device comprises an emulsion storage container, a spray head, a spraying container, a bracket, a paper disc adsorption mechanism and a rotation driving mechanism, the emulsion storage container is connected to the input end of the emulsion conveying pump through a pipeline, the output end of the emulsion conveying pump is connected with the spray head through a pipeline, the spraying container is arranged below the spray head, the rotatable paper disc adsorption mechanism is installed at the bottom of the spraying container, a rotating shaft of the paper disc adsorption mechanism penetrates through the spraying container, and the bottom end of the paper disc adsorption mechanism is connected with the rotation driving mechanism. The test device for the coating of the paper molding product is compact spraying equipment which is specially customized for experiment and process development. By means of the exquisite structure, cost effectiveness, easy operation, environment sustainability and improved production efficiency, an ideal test platform is provided for the coating process in the experiment stage.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating process equipment, and in particular relates to a coating test device for paper molded products. Background Art

[0002] In recent years, China's pulp molding industry has experienced rapid development, with numerous new projects and continued growth in production capacity. According to estimates by the Qianzhan Industry Research Institute, China's pulp molding capacity will reach 1.79 million tons in 2022, accounting for 40.5% of global production capacity, with output exceeding 1.5 million tons, reaching 1.57 million tons. In the disposable tableware sector, China's production capacity has reached 510,000 tons, accounting for 29% of the global total, demonstrating the strong growth momentum of the paper and plastic packaging industry in this area.

[0003] However, balancing environmental protection with high barrier properties remains a key challenge for paper-plastic tableware. Traditional disposable paper tableware often uses lamination or coating technologies to enhance barrier properties, but achieving both is often difficult. To overcome this limitation, our company has developed a high-performance water-based barrier-coated paper molded product. This product uses an environmentally friendly, food-safe aqueous emulsion instead of plastic film, achieving excellent water and oil repellency while maintaining the product's environmental credentials.

[0004] Because this new process is unlikely to succeed right the first time, multiple trials are required to verify the optimal solution. To promote the experimentation and application of this innovative product, we needed to design a custom-built test rig specifically for trial production of coating products. This rig would allow us to systematically test different coating technologies, optimize process parameters, and ultimately achieve high-quality product production. Utility Model Content

[0005] The purpose of the utility model is to provide a coating test device for paper molded products, so as to promote the experiment and application of innovative products, especially in the trial production of products with coating technology.

[0006] In order to achieve the above-mentioned utility model purpose, the technical solution of the utility model is as follows:

[0007] A coating test device for paper molded products is provided, comprising an emulsion storage container, a nozzle, a spray container, a bracket, a paper disc adsorption mechanism, and a rotation drive mechanism; the emulsion storage container is connected to the input end of an emulsion delivery pump via a pipeline, the output end of the emulsion delivery pump is connected to the nozzle via a pipeline, the spray container is located below the nozzle, a rotatable paper disc adsorption mechanism is installed at the bottom of the spray container, a rotation shaft of the paper disc adsorption mechanism passes through the spray container, and the bottom end is connected to the rotation drive mechanism.

[0008] Preferably, the nozzle is provided with a flow control rotary valve.

[0009] Preferably, the top of the paper tray adsorption mechanism is a suction cup, and the bottom of the suction cup is connected to the rotating shaft.

[0010] Preferably, the rotation driving mechanism includes a rotary servo motor and a transmission member, and the rotary servo motor is connected to the bottom end of the paper tray adsorption mechanism through the transmission member.

[0011] Preferably, it further comprises a bracket, on which the spray container and the rotation drive mechanism are fixedly mounted.

[0012] Preferably, a recovery pipe is connected to the bottom of the spray container, and the other end of the recovery pipe is connected to the recovery container.

[0013] Compared with the existing technology, the advantages and benefits of the present invention are as follows: The paper molded product coating test device of the present invention is a compact spraying device tailored for experiments and process development. With its sophisticated structure, cost-effectiveness, easy operation, environmental sustainability and improved production efficiency, it provides an ideal testing platform for coating processes in the experimental stage. By rotating the product, the device ensures the uniformity of the coating process and the stability of the product, thereby ensuring the high standards and quality of the coating process. The recovery system provided reduces the consumption of emulsion, effectively reducing the cost of experiments. The flexibility of the device is reflected in the ability to adjust the suction cup configuration for products of different sizes, meeting the diverse product needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the knot of the present utility model.

[0015] Numbers in the figure: 1. Emulsion storage container; 2. Emulsion delivery pump; 3. Nozzle; 4. Spray container; 5. Bracket; 6. Paper tray adsorption mechanism; 7. Rotation drive mechanism; 8. Recovery pipe; 9. Recovery container. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0017] The coating test device for paper molded products described in the utility model is as follows Figure 1 A coating test device for paper molded products includes an emulsion storage container 1, an emulsion delivery pump 2, a nozzle 3, a spray container 4, a bracket 5, a paper plate adsorption mechanism 6, a rotation drive mechanism 7, a recovery pipe 8, and a recovery container 9.

[0018] An emulsion storage container 1 is connected via a pipeline to the input of an emulsion delivery pump 2, which supplies the spray emulsion. The output of the emulsion delivery pump 2 is also connected via pipelines to multiple spray heads 3, each equipped with a flow control rotary valve to uniformly spray the barrier coating agent and control the spray flow rate to achieve coating thickness control.

[0019] Below the spray head 3 is a spray container 4, with a bracket 5 fixedly mounted to the bottom of the spray container 4. A paper tray suction mechanism 6 is mounted on the bottom of the spray container 4, rotatably mounted to the bottom of the spray container 4, with its rotation axis extending vertically through the bottom of the spray container 4. The top of the paper tray suction mechanism 6 is a suction cup; the number of suction cups can be increased or decreased depending on the size of the product. The bottom of the suction cup is connected to a rotation axis, and the bottom of the rotation axis is connected to a rotation drive mechanism 7. The rotation drive mechanism 7 is located outside the spray container 4 and fixed to the bracket 5. The interior of the spray container 4 constitutes the working area of ​​the spraying process, capable of accommodating and supporting the product to be sprayed, and observing the spraying process. It secures the paper molded product, maintains stability during the spraying and centrifugation processes, accommodates products of different sizes, and improves operational flexibility and stability.

[0020] The rotation drive mechanism 7 includes a rotation servo motor and a transmission member. The rotation servo motor is connected to the bottom end of the paper tray adsorption mechanism 6 through the transmission member, and can drive the paper tray adsorption mechanism 6 to rotate, thereby realizing the positioning and rotation of the paper tray.

[0021] A recovery pipe 8 is connected to the bottom of the spray container 4, and the other end of the recovery pipe 8 is connected to a recovery container 9 for collecting excess emulsion or other materials during the spraying process to achieve material recovery and reuse.

[0022] The utility model also provides a multi-station coating test device for paper molded products, wherein a plurality of paper tray adsorption mechanisms 6 are provided at the bottom of the spray container 4, and the rotating shaft of the paper tray adsorption mechanism 6 can be connected to the rotating drive mechanism 7 by means of meshing or the like.

[0023] The use method of this utility model:

[0024] (1) Fix the paper molded product to be sprayed on the paper tray adsorption mechanism 6 in the spray container 4;

[0025] (2) Turn on the rotation drive mechanism 7 at the bottom of the spray container 4 to rotate the product, and the emulsion in the storage container is delivered to the nozzle 3 through the pipeline by the delivery pump, and the nozzle 3 sprays the barrier coating;

[0026] (3) Excess emulsion during spraying is collected into a recovery container 9 through a recovery pipe 8;

[0027] (4) Place the sprayed sample in a drying device for drying.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A coating test device for paper molded products, characterized in that: The invention comprises an emulsion storage container (1), an emulsion delivery pump (2), a nozzle (3), a spray container (4), a paper disc adsorption mechanism (6), and a rotation drive mechanism (7); the emulsion storage container (1) is connected to the input end of the emulsion delivery pump (2) through a pipeline, the output end of the emulsion delivery pump (2) is connected to the nozzle (3) through a pipeline, the spray container (4) is located below the nozzle (3), a rotatable paper disc adsorption mechanism (6) is installed at the bottom of the spray container (4), the rotation axis of the paper disc adsorption mechanism (6) passes through the spray container (4), and the bottom end is connected to the rotation drive mechanism (7).

2. The coating test device for paper molded products according to claim 1, characterized in that: The nozzle (3) is provided with a flow control rotary valve.

3. The coating test device for paper molded products according to claim 1, characterized in that: The top of the paper tray adsorption mechanism (6) is a suction cup, and the bottom of the suction cup is connected to the rotating shaft.

4. The coating test device for paper molded products according to claim 1, characterized in that: The rotation drive mechanism (7) comprises a rotation servo motor and a transmission member, and the rotation servo motor is connected to the bottom end of the paper tray adsorption mechanism (6) via the transmission member.

5. The coating test device for paper molded products according to claim 1, characterized in that: It also includes a bracket (5), on which the spray container (4) and the rotation drive mechanism (7) are fixedly mounted.

6. The coating test device for paper molded products according to claim 1, characterized in that: The bottom of the spray container (4) is connected to a recovery pipe (8), and the other end of the recovery pipe (8) is connected to a recovery container (9).

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