Automatic heating system for roller of roller printing machine

Abstract

The invention relates to the technical field of roller printing machine rollers, in particular to a roller printing machine roller automatic heating system which comprises a roller printing machine body, a gluing roller installed on the roller printing machine body and hydrothermal circulation equipment, the gluing roller is provided with an overflowing channel, one end of the overflowing channel is communicated with the liquid inlet end of the hydrothermal circulation equipment, and the other end of the overflowing channel is communicated with the liquid discharging end of the hydrothermal circulation equipment. According to the device, heat conduction liquid circularly flows in the gluing roller through the hydrothermal circulation equipment, and the problems that normal coating cannot be achieved due to air temperature changes, the working efficiency is low, and the constant-temperature workshop cost is high are solved.

Description

Technical Field

[0001] The invention relates to the technical field of rollers of roller printing machines, and in particular to an automatic heating system for rollers of roller printing machines. Background Art

[0002] Roller coating machine is an important equipment in the coating equipment series machinery. It is used in the coating equipment industry, especially in the coating industry of films, cards and plates of different thickness substrates, such as metal plates, plastic plates, glass plates, etc. These products usually need to be coated to improve their surface performance, decorative effect or durability. Common roller coating machines, semi-precision roller coating machines, ordinary roller coating machines, positive and reverse roller coating machines, among which roller coating machines have many advantages such as small paint loss, high production efficiency, simple and convenient maintenance; they can be well connected with the assembly line to form a production line with a high degree of automation, etc., and have been widely used.

[0003] Because the uniform distribution rubber roller and uniform distribution steel wheel of the roller printing machine are parallel and close to each other, the paint in the cavity is greatly affected by the temperature. When painting paint with high viscosity and poor fluidity, it is often not possible to paint normally due to temperature changes, resulting in poor fluidity during painting, delayed working hours, and unsatisfactory painting effects.

[0004] In the prior art, the temperature difference problem is reduced by using a constant temperature workshop. A constant temperature workshop is a constant temperature production workshop. As the name implies, it is a production workshop that can adjust and maintain a constant indoor temperature to meet the needs of modern high-precision production. The construction of a constant temperature workshop is to minimize the interference of external climate conditions.

[0005] Key elements:

[0006] (1) Temperature control system

[0007] Air conditioning unit: It has the advantages of fast cooling and heating speed, wide temperature adjustment range, and high control accuracy. It is suitable for large-area constant temperature workshops.

[0008] Heater: Mainly used to provide additional heat for the workshop in winter or low temperature environment. Its advantage is relatively low operating cost, but the equipment investment is large.

[0009] (II) Thermal insulation measures

[0010] Wall insulation: Pay attention to the tight joints between rock wool boards or polyurethane foam boards to avoid gaps that affect the insulation effect.

[0011] Roof insulation: The roof insulation construction method is similar to that of the wall, but because the roof is affected by factors such as direct sunlight and rain erosion, higher requirements are placed on thermal insulation and waterproof performance.

[0012] Floor thermal insulation: Pour concrete or lay floor tiles and other surface materials on top of the thermal insulation material to meet the load-bearing requirements and usage functions of the workshop floor.

[0013] (III) Ventilation and air purification system

[0014] Filter: The filter is one of the core components of the air purification system. According to the different filtration efficiency, it can be divided into primary filter, medium efficiency filter and high efficiency filter.

[0015] Purifier: Ventilation and air purification systems are of vital importance to ensuring workshop air quality and product quality. They can provide a clean and stable air environment for the production process, improve product qualification rate, and reduce defective and scrap rates.

[0016] The constant temperature workshop has the following problems:

[0017] 1. Impact on the human body: Being in a constant temperature and humidity environment for a long time may weaken the human body's ability to adapt to environmental changes. Health risks: Although a constant temperature environment generally has little impact on the human body, certain specific conditions, such as a high humidity environment, may increase skin problems or other health risks. Physiological effects: Being in this environment for a long time may affect the normal physiological functions of the human body, such as affecting body temperature regulation.

[0018] 2. High construction cost:

[0019] The construction of a constant temperature workshop requires the use of more complex control systems and thermal insulation and sealing materials, so the construction cost is relatively high.

[0020] 3. Difficulty in maintenance:

[0021] The maintenance of the constant temperature workshop requires regular inspection and adjustment of the control system to ensure the normal operation and accuracy of the equipment, which requires professional technicians and equipment.

[0022] 4. High dependence on energy:

[0023] The stable operation of a constant temperature workshop is highly dependent on a stable energy supply, such as electricity. Once the energy supply is interrupted, the normal operation of the workshop may be affected. Summary of the invention

[0024] The purpose of the present invention is to solve the problems pointed out in the background technology and to propose an automatic heating system for the roller of a roller printing machine.

[0025] In order to achieve the above object, the present invention adopts the following technical solutions:

[0026] A roller automatic heating system for a roller printing machine comprises a roller printing machine body, a glue roller installed on the roller printing machine body, and a hot liquid circulation device. The glue roller has a flow passage, one end of the flow passage is connected to the liquid inlet end of the hot liquid circulation device, and the other end is connected to the liquid discharge end of the hot liquid circulation device.

[0027] The hot liquid circulation equipment includes a heating oil tank and a circulation pump. The liquid inlet end of the circulation pump is connected to the second pipe, and the second pipe is connected to one end of the glue roller through a rotating joint. The liquid discharge end of the circulation pump is connected to the heating oil tank. The heating oil tank has an oil discharge port, and the oil discharge port is connected to the first pipe. The first pipe is connected to the other end of the glue roller through another rotating joint.

[0028] The glue-applying roller comprises a roller body, the interior of the roller body has a cavity, a heat-conducting rod is tightly attached to the roller body, a first collecting chamber is arranged at one end of the heat-conducting rod, and a second collecting chamber is arranged at the other end, the first collecting chamber is connected to the first tube, and the second collecting chamber is connected to the second tube, and the heat-conducting rod is provided with a plurality of evenly distributed capillary channels along its axial direction, and one end of the capillary channel is connected to the first collecting chamber, and the other end is connected to the second collecting chamber.

[0029] The invention proposes an automatic heating system for rollers of roller printing machines, which has the beneficial effect that the device circulates heat-conducting liquid inside the glue roller through hot liquid circulation equipment, thereby solving the problems of normal coating failure due to temperature changes, low work efficiency and high cost of constant temperature workshops. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of the glue roller of the present invention.

[0032] In the figure: roller printing machine body 1, glue roller 2, rotating joint 3, first tube 4, second tube 5, heating oil tank 6, oil drain port 7, circulation pump 8, roller body 9, first manifold 10, second manifold 11, capillary flow channel 12, heat conduction rod 13. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Reference Figure 1-Figure 2 A roller automatic heating system for a roller printing machine comprises a roller printing machine body 1, a glue roller 2 installed on the roller printing machine body 1, and a hot liquid circulation device. The glue roller 2 has a flow channel, one end of the flow channel is connected to the liquid inlet end of the hot liquid circulation device, and the other end is connected to the liquid discharge end of the hot liquid circulation device.

[0035] This device uses hot liquid circulation equipment to circulate heat transfer liquid inside the glue roller. Common heat transfer liquids include thermal oil, ethylene glycol aqueous solution, etc., which are selected according to the temperature requirements and corrosion protection needs of the usage scenario. The heat transfer liquid is used to make the glue roller heat up, which solves the problems of normal coating due to temperature changes, low work efficiency, and high cost of constant temperature workshops.

[0036] As an implementation mode of the hot liquid circulation equipment, the hot liquid circulation equipment includes a heating oil tank 6 and a circulation pump 8. The liquid inlet end of the circulation pump 8 is connected to the second pipe 5. The second pipe 5 is connected to one end of the glue roller 2 through a rotating joint 3. The liquid discharge end of the circulation pump 8 is connected to the heating oil tank 6. The heating oil tank 6 has an oil discharge port 7. The oil discharge port 7 is connected to the first pipe 4. The first pipe 4 is connected to the other end of the glue roller 2 through another rotating joint 3.

[0037] The liquid in the second tube 5 is pumped into the heating oil tank 6 for heating through the circulation pump 8. The liquid in the heating oil tank 6 flows back to the glue roller 2 through the first tube 4, completing the circulation and heating flow of the heat transfer oil. The structure is simple and the cost is low.

[0038] Furthermore, the gluing roller 2 includes a roller body 9, which has a cavity inside. A heat-conducting rod 13 is tightly attached to the roller body 9. A first collecting chamber 10 is arranged at one end of the heat-conducting rod 13, and a second collecting chamber 11 is arranged at the other end. The first collecting chamber 10 is connected to the first tube 4, and the second collecting chamber 11 is connected to the second tube 5. The heat-conducting rod 13 is provided with a plurality of evenly distributed capillary channels 12 along its axial direction. One end of the capillary channel 12 is connected to the first collecting chamber 10, and the other end is connected to the second collecting chamber 11.

[0039] The heat transfer oil is dispersed to multiple capillary channels 12 through the first manifold 10, and then converges to the second manifold 11 for discharge. Due to the provision of the capillary channels 12, the heat transfer oil can better fill the entire heat transfer roller 13, making the entire roller body 9 heat more evenly.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution, conception, and design obtained by equivalent replacement or modification of the technical solution and inventive concept of the present invention by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. An automatic heating system for rollers of roller printing machines, characterized in that: The invention comprises a roller printing machine body (1), a glue roller (2) mounted on the roller printing machine body (1), and a hot liquid circulation device, wherein the glue roller (2) has a flow passage, one end of the flow passage is connected to a liquid inlet end of the hot liquid circulation device, and the other end is connected to a liquid discharge end of the hot liquid circulation device.

2. The automatic heating system for roller printing machine according to claim 1, characterized in that: The hot liquid circulation equipment comprises a heating oil tank (6) and a circulation pump (8); the liquid inlet end of the circulation pump (8) is connected to a second pipe (5); the second pipe (5) is connected to one end of a glue roller (2) via a rotating joint (3); the liquid discharge end of the circulation pump (8) is connected to the heating oil tank (6); the heating oil tank (6) has an oil discharge port (7); the oil discharge port (7) is connected to a first pipe (4); the first pipe (4) is connected to the other end of the glue roller (2) via another rotating joint (3).

3. The automatic heating system for roller printing machine according to claim 1, characterized in that: The glue-applying roller (2) comprises a roller body (9), the roller body (9) has a chamber inside, a heat-conducting rod (13) is tightly attached to the roller body (9), a first manifold (10) is arranged at one end of the heat-conducting rod (13), and a second manifold (11) is arranged at the other end, the first manifold (10) is connected to the first tube (4), and the second manifold (11) is connected to the second tube (5), and the heat-conducting rod (13) is provided with a plurality of uniformly distributed capillary channels (12) along its axial direction, and one end of the capillary channel (12) is connected to the first manifold (10), and the other end is connected to the second manifold (11).

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