CN202064234U - On-line coating machine for thermal sensitive paper - Google Patents

Abstract

An on-line thermal paper coating machine comprises a rubber roller, a metering rod is arranged on one side of the rubber roller, a scraper device is arranged on the other side of the rubber roller, and a coating pool is arranged between the scraper device and the rubber roller, The rubber rollers, metering rods and scraper devices are all arranged in the paper machine. Through the improvement of the sizing machine in the production process of base paper, metering rods and scraper devices are installed on both sides of the rubber roller of the sizing machine, so that the sizing machine has two functions of sizing and coating. During the production process of base paper, When the paper sheet passes through the sizing machine, the metering rod device is used for sizing on one side of the paper, and the coating process of the heat-sensitive coating can be completed at the same time on the other side of the paper using the scraper device, so that the on-line production of heat-sensitive paper can be realized. Only the functional improvement of the sizing machine is carried out, without adding equipment, workshops and labor, reducing the transfer link, and saving the investment and operating costs of the traditional entire coating workshop, and the production efficiency is greatly improved, and the product cost is greatly reduced.

Description

Thermal paper online coating machine

technical field

The utility model belongs to the coating process of heat-sensitive paper in the papermaking industry, and in particular relates to an online coating method of heat-sensitive paper.

Background technique

Thermal paper includes thermal fax paper, thermal recording paper, thermal copy paper, thermal printing paper and other paper products. Its traditional manufacturing process is to produce base paper first, and then coat a layer of "heat-sensitive paint" on the base paper, that is, a heat-sensitive color-changing layer, and some have a protective layer.

The equipment for producing base paper is a paper machine, as shown in Figure 1, a general low-speed paper machine; Figure 2, a general high-speed paper machine. These two types of paper machines use sizing machines in the production process of base paper, as shown in Figure 1 and area A in Figure 2. The adhesive film is evenly distributed on the surface of the coating roller 2, and the paper sheet 3 passes through the roller surface to absorb the adhesive material and complete the sizing. Both rollers are glued, and the glue can be applied on both sides of the paper at the same time; only one roller is glued, and the glue is only applied on one side of the paper. This sized wet paper sheet is the base paper after drying, calendering, and coiling.

The traditional heat-sensitive paper production process is to transfer the base paper produced by the paper machine to a special coating machine, and use a doctor blade to coat the heat-sensitive coating. As shown in Figure 4, the schematic diagram of the coating machine. Its working principle is shown in Figure 5. The principle of thermal paper coating is that the paper web runs vertically and passes through the material pool 5 between the rubber roller 6 of the coating machine and the flexible scraper 4. The pressure of the scraper makes the thermal sensitive coating adsorb on the paper surface. By adjusting the linear pressure applied by the scraper to the paper surface, the amount of heat-sensitive paint can be metered. This production process requires investment in equipment, workshops and production personnel. Consumes energy and increases product cost.

Utility model content

The purpose of this utility model is to overcome the above disadvantages and provide an online coater for thermal paper.

The purpose of this utility model can be achieved through the following technical solutions:

An on-line coating machine for heat sensitive paper comprises a rubber roller, a metering rod is arranged on one side of the rubber roller, a scraper device is arranged on the other side of the rubber roller, and a coating pool is arranged between the scraper device and the rubber roller.

In the online coating machine for heat-sensitive paper, the rubber roller, metering rod and scraper device are all arranged in the paper machine.

By adopting the above-mentioned technical scheme, the utility model has the following advantages: through the improvement of the sizing machine in the production process of base paper, as shown in Figure 6, the principle of on-line coating of thermal paper, measuring rods are arranged on both sides of the rubber roller 2 of the sizing machine 1 and scraper device 4, so that the sizing machine has two functions of sizing and coating. During the production process of base paper, when the paper sheet passes through the sizing machine, the metering rod device 1 is used to sizing on one side of the paper. The other side of the paper can use the doctor blade device 4 to complete the coating process of the heat-sensitive paint at the same time, so that the on-line production of heat-sensitive paper can be realized. Make full use of and develop the potential of the paper machine equipment, only carry out functional improvement on the sizing machine, without adding equipment, workshops and labor, reduce the transfer link, and save the investment and operating costs of the traditional entire coating workshop, and the production efficiency Substantial increase, product cost decreased significantly.

Description of drawings

Figure 1 is a schematic diagram of the structure of a low-speed paper machine.

Figure 2 is a schematic diagram of the structure of a high-speed paper machine.

Figure 3 is a working principle diagram of a traditional sizing machine

Figure 4 is a schematic diagram of a conventional coater.

Figure 5 is a schematic diagram of traditional thermal paper coating.

Figure 6 is a schematic diagram of the structure of the utility model.

Detailed ways

A kind of heat-sensitive paper on-line coating machine as shown in Figure 6, comprises rubber roller 2, is provided with metering bar 1 on one side of rubber roller 2, is provided with scraper device 4 on the other side of rubber roller, and is equipped with scraper device A coating pool 5 is arranged between 4 and the rubber roller 2, and the rubber roller 2, the metering rod 1 and the scraper device 4 are all arranged in the paper machine.

The utility model is realized on the traditional paper machine production line for base paper production. The sizing machine in the original production line is used for technical transformation, so that both sides of the sizing roller 2 are equipped with a metering rod device 1 and a scraper device 4 at the same time, or the utility model is equipped with such a The sizing machine of each structure replaces the original sizing machine, and the paper surface sizing and heat-sensitive paint coating are completed inside the machine.

In the online coating machine, a metering rod 1 and a scraper device 4 are arranged on both sides of the rubber roller 2 at the same time. In the production process of base paper, when the paper sheet 3 passes through the sizing machine, the metering rod device 1 is used for sizing on one side of the paper, and the coating process of heat-sensitive paint can be completed at the same time on the other side of the paper by using the scraper device 4, Realize the online production of thermal paper. The heat-sensitive paper production process fully utilizes and develops the potential of the paper machine equipment, and only improves the function of the sizing machine, not only does not increase equipment, workshops and labor, reduces the transfer link, but also saves the traditional entire coating workshop. Investment and operating costs, and the production efficiency has been greatly improved, and the product cost has been greatly reduced.

Claims (2)

1. online coating machine of heat-sensitive paper, comprise rubber roll (2), it is characterized in that: the side at rubber roll (2) is provided with gauge stick (1), is provided with doctor blade device (4) at the opposite side of rubber roll, is provided with coating pond (5) between doctor blade device (4) and rubber roll (2).

2. the online coating machine of heat-sensitive paper according to claim 1 is characterized in that: described rubber roll (2), gauge stick (1) and doctor blade device (4) all are arranged in the paper machine.

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