Printing roller temperature regulation and control system

Abstract

The utility model provides a temperature regulation and control system for a printing roller, which belongs to the field of printing equipment and comprises a roller body, and a regulation and control mechanism for regulating and controlling the temperature of the roller body is arranged outside the roller body. By arranging the regulating and controlling mechanism, the resistance wire is electrified during use, the surface of the roller body can be quickly and uniformly heated through heating of the resistance wire, if the temperature of the roller body is too high, cold air can be introduced into the air inlet pipe, enters the air inlet hole through the air inlet pipe and then enters the outer part of the spiral placing frame, and the temperature of the roller body is reduced. The roller body can be evenly made to make contact with cold air, the temperature of the roller body is rapidly reduced, through the mode of combining heating and cooling, temperature fluctuation in the printing process can be rapidly responded, excessive temperature fluctuation can be avoided, and the printing effect and the production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of printing equipment, specifically, relate to a printing roller temperature control system. BACKGROUND

[0002] Printing roller is the core component of printing machinery, usually cylindrical metal (such as cast iron, aluminum alloy or chrome-plated material) structure, when using roller, temperature is too high to cause the ink fluidity to be too strong, and the color of printed matter is not full, and the level is fuzzy, and the temperature is too low, and the ink is thick, and the adhesion effect is poor, and it is easy to dirty, so it is necessary to regulate its temperature, but when regulating the temperature of printing cylinder, the following defects still exist:

[0003] Traditional roller temperature control method mostly depends on hot water circulating device, but hot water circulating device has certain deficiencies in temperature control precision, response speed and stability, for example, traditional hot water circulating device needs long time preheating, and temperature fluctuation is large, it is difficult to quickly respond to temperature change in printing process in a short time, thereby affecting printing effect and production efficiency. Therefore, a printing roller temperature control system is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at: in view of the existing roller temperature control method mostly depends on hot water circulating device, but hot water circulating device has certain deficiencies in temperature control precision, response speed and stability, for example, traditional hot water circulating device needs long time preheating, and temperature fluctuation is large, it is difficult to quickly respond to temperature change in printing process in a short time, thereby affecting printing effect and production efficiency.

[0005] In order to realize the above-mentioned utility model purpose, the utility model provides the following technical scheme:

[0006] The utility model is as follows: printing roller temperature control system, including the roller body, the outside of the roller body is provided with the control mechanism that controls the temperature of the roller body;

[0007] The control mechanism includes the hollow pipe that is communicated with the opposite two side walls of the roller body, the inside of two hollow pipes is slidably connected with the air inlet pipe and the exhaust pipe respectively, the inside of the roller body is fixedly connected with the support ring, the outer wall of the support ring is fixedly connected with the spiral placement frame, the inside of the spiral placement frame is provided with the resistance wire, the outer wall of the opposite two ends of the support ring is provided with the air inlet hole and the exhaust hole respectively.

[0008] As the preferred technical scheme of the utility model, the outer wall of the one end of the air inlet pipe away from the roller body is provided with the first electromagnetic valve, and the outer wall of the one end of the exhaust pipe away from the roller body is provided with the second electromagnetic valve.

[0009] As the utility model discloses preferred technical scheme, two hollow tubes's outer wall all is provided with bearing, two bearing inner ring and outer bearing block interference fit use.

[0010] As the utility model discloses preferred technical scheme, the support ring inside the wall on one end close to the exhaust hole is fixedly connected with the baffle, and the material of the baffle is copper.

[0011] As the utility model discloses preferred technical scheme, the temperature sensor that real -time monitoring roller body temperature is fixedly connected on the opposite two side walls of the roller body, and two temperature sensors are electric signal connection with external display screen.

[0012] As the utility model discloses preferred technical scheme, the outer wall of the roller body is provided with the ceramic coating that provides the wear resistance of the roller body, and the material of the roller body is aluminum alloy.

[0013] As the utility model discloses preferred technical scheme, the number of air inlet hole and exhaust hole is several, and along the circumferential distribution of the central axis of the roller body.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] 1. by setting the control mechanism, when using, the resistance wire is electrified, and the resistance wire heating can quickly and evenly heat the surface of the roller body, if the temperature of the roller body is too high, cold gas can be introduced into the air inlet pipe, and the cold gas enters the air inlet hole through the air inlet pipe, and then enters the outside of the spiral placing frame, and then passes through the exhaust hole and exhaust pipe and is discharged, which can evenly contact the roller body with the cold gas, quickly reduce the temperature of the roller body, and the combination of heating and cooling can not only quickly respond to the temperature fluctuation in the printing process, but also can avoid excessive temperature fluctuation, improve the printing effect and production efficiency.

[0016] 2. by setting the first electromagnetic valve and the second electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve can be quickly opened or closed after receiving the control signal of external equipment, which greatly improves the response speed of the device, and the first electromagnetic valve and the second electromagnetic valve can realize almost instantaneous switching, which helps to quickly adjust the amount of cold gas entering or discharging, so as to respond to temperature change more quickly and avoid affecting the printing quality due to too high or too low temperature. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of the printing roller temperature control system provided by the utility model is shown in the figure.

[0018] Figure 2 The left view of the printing roller temperature control system provided by the utility model is shown in the figure.

[0019] Figure 3 The printing roller temperature regulation system provided by the utility model Figure 2 A-A is a sectional view;

[0020] Figure 4 The partial structure schematic view of the printing roller temperature regulation system regulation mechanism provided by the utility model;

[0021] Figure 5 The upper view of the printing roller temperature regulation system provided by the utility model.

[0022] Indicated in the figure: 1, roller body; 2, regulation mechanism; 3, first electromagnetic valve; 4, second electromagnetic valve; 5, bearing; 6, blocking plate; 7, temperature sensor; 8, ceramic coating; 201, hollow pipe; 202, air inlet pipe; 203, exhaust pipe; 204, support ring; 205, spiral placement frame; 206, resistance wire; 207, air inlet hole; 208, exhaust hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0024] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0025] It should be noted that the embodiments in the utility model and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0026] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0027] As Figure 1 shown, the present embodiment proposes a printing roller temperature regulation system, which comprises a roller body 1, and the outside of the roller body 1 is provided with a regulation mechanism 2 for regulating the temperature of the roller body 1.

[0028] As Figure 3 and Figure 4As shown, the control mechanism 2 includes hollow tubes 201 connected to the opposite side walls of the roller body 1. An air inlet pipe 202 and an exhaust pipe 203 are slidably connected inside the two hollow tubes 201, respectively. The air inlet pipe 202 and the exhaust pipe 203 are tightly fitted to the inner walls of the two hollow tubes 201. The hollow tubes 201 not only support the roller body 1 but also facilitate the installation of the air inlet pipe 202 and the exhaust pipe 203. A support ring 204 is fixedly connected inside the roller body 1. A spiral placement frame 205 is fixedly connected to the outer wall of the support ring 204. A resistance wire 206 is disposed inside the spiral placement frame 205. The support ring 204 supports the placement frame and the resistance wire 206. The resistance wire 206 can quickly heat the roller body 1. The support ring 204 supports the outer walls of the two ends of the roller body 1. The wall is provided with an air inlet 207 and an exhaust 208. Through the air inlet 207 and the exhaust 208, cold air can be quickly introduced into the spiral placement frame 205 and gas can be quickly discharged. When in use, the resistance wire 206 is energized, and the resistance wire 206 can quickly and evenly heat the roller body 1. If the temperature of the roller body 1 is too high, cold air can be introduced into the air inlet pipe 202, so that the cold air enters the support ring 204. Then, the cold air enters the space between the support ring 204 and the roller body 1 through the air inlet 207, and then enters the exhaust 208 and the exhaust pipe 203 through the outer wall of the spiral placement frame 205. At this time, the cold air can evenly contact the inner wall of the roller body 1 and the outer wall of the spiral placement frame 205, quickly reducing the temperature of the roller body 1 and realizing the temperature regulation function of the roller body 1.

[0029] like Figure 3 As shown, in a preferred embodiment, based on the above method, a first solenoid valve 3 is provided on the outer wall of the end of the air inlet pipe 202 away from the roller body 1, and a second solenoid valve 4 is provided on the outer wall of the end of the exhaust pipe 203 away from the roller body 1. When it is necessary to introduce external cold air into the roller body 1, the first solenoid valve 3 and the second solenoid valve 4 can be quickly opened by sending a control signal through an external control device. This not only allows for flexible adjustment of the amount of cold air entering the roller body 1, ensuring that the flow rate of cold air matches the temperature regulation requirements of the roller body 1, but also enables almost instantaneous switching, which helps to respond to temperature changes more quickly and avoids affecting printing quality due to excessively high or low temperatures.

[0030] like Figure 3 As shown, in a preferred embodiment, based on the above method, a bearing 5 is further provided on the outer wall of each of the two hollow tubes 201. The inner rings of the two bearings 5 ​​are used in an interference fit with the outer bearing 5 seat. The roller body 1 can be quickly installed on the outer bearing 5 seat through the bearings 5, reducing the friction between the roller body 1 and the external equipment and ensuring the normal operation of the roller body 1.

[0031] likeFigure 3 As shown, in a preferred embodiment, based on the above method, a baffle plate 6 is fixedly connected to the inner wall of the support ring 204 near the exhaust port 208. The baffle plate 6 is made of copper. When in use, the baffle plate 6 can block the end of the support ring 204 near the exhaust port 208, allowing cold air to enter the support ring 204 and reducing the temperature of the support ring 204. At the same time, when the cold air passes through the exhaust port 208, it can also prevent the cold air from returning to the support ring 204, ensuring that the cold air in contact with heat can be quickly discharged into the exhaust pipe 203, thereby improving the cooling efficiency.

[0032] like Figure 3 As shown, in a preferred embodiment, based on the above method, temperature sensors 7 are fixedly connected to the opposite side walls of the roller body 1 to monitor the temperature of the roller body 1 in real time. The two temperature sensors 7 are electrically connected to an external display screen. The temperature sensors 7, resistance wire 206, first solenoid valve 3, and second solenoid valve 4 are electrically connected to an external controller. The temperature sensors 7 monitor the temperature of the roller body 1 in real time. When the temperature sensor 7 detects the difference between the temperature of the roller body 1 and the preset target temperature, it transmits the temperature data to the external controller. If the temperature of the roller body 1 is too low, the external controller will activate the resistance wire 206 to heat it and quickly increase the temperature of the roller body 1. Conversely, it will close the resistance wire 206 and open the first solenoid valve 3 and the second solenoid valve 4 to allow cold air from the outside to enter the roller body 1, thereby reducing the temperature of the roller body 1 and achieving automation.

[0033] like Figure 3 As shown, in a preferred embodiment, based on the above method, a ceramic coating 8 is further provided on the outer wall of the roller body 1 to provide wear resistance to the roller body 1. The roller body 1 is made of aluminum alloy. The ceramic coating 8 has extremely high hardness, wear resistance and corrosion resistance, which greatly improves the service life of the roller body 1. The roller body 1 made of aluminum alloy has good thermal conductivity, which enables heat to be transferred quickly.

[0034] like Figure 4 As shown, in a preferred embodiment, based on the above method, the number of air inlet holes 207 and exhaust holes 208 is several, and they are distributed circumferentially along the central axis of the roller body 1. By setting several air inlet holes 207 and exhaust holes 208, cold air can enter the space between the roller body 1 and the support ring 204 from multiple paths, thereby achieving rapid cooling.

[0035] Specifically, in use, the printing roller temperature control system works as follows: the roller body 1 is mounted on an external bearing 5 seat via bearing 5, then the air inlet pipe 202 is connected to an external cooling system, and then the temperature sensor 7 monitors the temperature of the roller body 1 in real time (e.g., ...).Figure 3 When the temperature sensor 7 detects the difference between the temperature of the roller body 1 and the preset target temperature, it transmits the temperature data to the external controller, and if the temperature of the roller body 1 is too low, the external controller activates the resistance wire 206 through a signal, and the resistance wire 206 can quickly and uniformly heat the roller body 1, rapidly increasing the temperature of the roller body 1 (as shown in Figure 3 If the temperature of the roller body 1 is too high, the external controller deactivates the resistance wire 206, and opens the first electromagnetic valve 3 and the second electromagnetic valve 4, so that cold air enters the support ring 204, and then the cold air enters the space between the support ring 204 and the roller body 1 through the air inlet hole 207, and then enters the exhaust hole 208 and the exhaust pipe 203 through the spiral placement frame 205, at this time the cold air can uniformly contact the inner wall of the roller body 1 and the spiral placement frame 205 (as shown in Figure 3 and Figure 4 The temperature of the roller body 1 is rapidly reduced, and the temperature regulation of the roller body 1 is realized.

[0036] All the technical features in the embodiment can be freely combined according to actual needs.

[0037] The above embodiment is a preferred implementation scheme of the present application, and the present application can also be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the present application.

Claims

1. A printing roller temperature control system, comprising a roller body (1), characterized in that, The roller body (1) is provided with a control mechanism (2) for controlling the temperature of the roller body (1) on its outside. The control mechanism (2) includes a hollow tube (201) connected to the opposite side walls of the roller body (1). An air inlet pipe (202) and an exhaust pipe (203) are slidably connected inside the two hollow tubes (201). A support ring (204) is fixedly connected inside the roller body (1). A spiral placement frame (205) is fixedly connected to the outer wall of the support ring (204). A resistance wire (206) is provided inside the spiral placement frame (205). An air inlet hole (207) and an exhaust hole (208) are respectively opened on the outer walls of the opposite ends of the support ring (204).

2. The printing roller temperature control system according to claim 1, characterized in that, A first solenoid valve (3) is provided on the outer wall of the end of the air inlet pipe (202) away from the roller body (1), and a second solenoid valve (4) is provided on the outer wall of the end of the exhaust pipe (203) away from the roller body (1).

3. The printing roller temperature control system according to claim 1, characterized in that, Bearings (5) are provided on the outer walls of the two hollow tubes (201), and the inner rings of the two bearings (5) are used in an interference fit with the outer bearing (5) seat.

4. The printing roller temperature control system according to claim 1, characterized in that, A baffle plate (6) is fixedly connected to the inner wall of the support ring (204) near the exhaust hole (208), and the baffle plate (6) is made of copper.

5. The printing roller temperature control system according to claim 1, characterized in that, Temperature sensors (7) for real-time monitoring of the temperature of the roller body (1) are fixedly connected to the two opposite side walls of the roller body (1), and the two temperature sensors (7) are electrically connected to the external display screen.

6. The printing roller temperature control system according to claim 1, characterized in that, The outer wall of the roller body (1) is provided with a ceramic coating (8) that provides wear resistance to the roller body (1), and the roller body (1) is made of aluminum alloy.

7. The printing roller temperature control system according to claim 1, characterized in that, The number of air inlet holes (207) and air outlet holes (208) is several, and they are distributed circumferentially along the central axis of the roller body (1).

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