Printing roller cooling device

Abstract

The utility model relates to the technical field of printing rollers, and discloses a printing roller cooling device which comprises a roller body, the interior of the roller body is hollow, the two ends of the roller body are open, a flexible water jacket is arranged in the roller body, and a water inlet pipe and a water outlet pipe are arranged at the two ends of the roller body correspondingly. A connecting hose is locally arranged at one end of the water inlet pipe, one end of the connecting hose and one end of the water outlet pipe are in through connection with the flexible water jacket through openings in the two ends of the roller body respectively, valve bodies are arranged in the water inlet pipe and the water outlet pipe and can control the water flow speed, and an extrusion plate is arranged on the side, close to the connecting hose, in the roller body; the flexible water jacket is used for containing cooling liquid, the cooling liquid is prevented from making direct contact with the roller body, and therefore the situation that the interior of the roller body is moist and mildewed is avoided; and the flexible water jacket can be of a double-layer structure, so that the use amount of cooling liquid can be reduced while a good cooling effect is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of printing rollers, and in particular to a printing roller cooling device. Background Art

[0002] During the printing process, in addition to the plate, the cooling roller also needs to be kept at an appropriate temperature. If the temperature is too high, the surface of the cooling roller will become sticky, and the ink recovery effect will be greatly reduced. At present, in the process of cooling the cooling roller, the coolant is usually directly passed into the cooling roller. However, this method is not thorough enough to discharge the coolant, and the coolant is likely to remain inside the cooling roller, causing the cooling roller to become damp and moldy, affecting the normal use of the cooling roller. For this reason, a printing roller cooling device is proposed. Utility Model Content

[0003] In order to solve the problem that coolant easily remains inside the cooling roller, causing moisture and mold inside the cooling roller, thus affecting the normal use of the cooling roller, the present application provides a printing roller cooling device.

[0004] The present application provides a printing roller cooling device adopts the following technical solution:

[0005] A printing roller cooling device comprises a roller body, wherein the interior of the roller body is hollow, and both ends of the roller body are set as openings, a flexible water jacket is arranged inside the roller body, and a water inlet pipe and a water outlet pipe are respectively arranged at both ends of the roller body, one end of the water inlet pipe is partially arranged as a connecting hose, and one end of the connecting hose and the water outlet pipe are respectively connected with the flexible water jacket through the openings at both ends of the roller body, a valve body is arranged in the water inlet pipe and the water outlet pipe, and the valve body can control the water flow speed, and an extrusion plate is arranged on the side of the roller body close to the connecting hose, and the extrusion plate can move horizontally along the axis direction of the roller body.

[0006] Preferably, a spring is fixedly connected between the extrusion plate and the inner surface of the roller body, and when the interior of the flexible water jacket is filled with coolant, the spring is in a compressed state.

[0007] Preferably, an inner hole is opened at the center of the extrusion plate, and the connecting hose passes through the inner hole on the surface of the extrusion plate.

[0008] Preferably, a water pump is fixedly installed at the water inlet port of the water inlet pipe, a water tank is fixedly installed at the water outlet port of the water outlet pipe, a connecting pipe is arranged between the water pump and the water tank, and a circulation processor is arranged in the middle of the connecting pipe.

[0009] Preferably, it also includes a frame, the roller body is rotatably installed on the top of the frame through a rotating shaft, a transmission wheel is rotatably connected to the frame, a conveyor belt is sleeved on the surface of the roller body and the transmission wheel, a motor is fixedly installed on the surface of the frame, and the power end of the motor is fixedly connected to the transmission wheel.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] The flexible water jacket provided in the utility model is used to contain the cooling liquid, so as to prevent the cooling liquid from directly contacting the roller body, thereby preventing moisture and mold from occurring inside the roller body; and the flexible water jacket can be set to a double-layer structure, so as to reduce the amount of cooling liquid used while ensuring a good cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0013] Figure 2 is a partial cross-sectional view of an embodiment of the application;

[0014] Figure 3 It is an application embodiment Figure 1 The enlarged view of point A in the middle;

[0015] Figure 4 It is a cross-sectional view of the flexible water jacket of the application embodiment.

[0016] Explanation of the reference numerals: 1. frame; 2. roller body; 3. water pump; 4. water inlet pipe; 5. water outlet pipe; 6. water storage tank; 7. connecting pipe; 8. circulation processor; 9. flexible water jacket; 10. extrusion plate; 11. spring; 12. connecting hose; 13. transmission wheel; 14. motor; 15. conveyor belt. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-4 This application is described in further detail.

[0018] The embodiment of the present application discloses a printing roller cooling device, including a roller body 2, the interior of the roller body 2 is hollow, and both ends of the roller body 2 are set to openings, a flexible water jacket 9 is arranged inside the roller body 2, and a water inlet pipe 4 and a water outlet pipe 5 are respectively arranged at both ends of the roller body 2, one end of the water inlet pipe 4 is partially arranged as a connecting hose 12, and one end of the connecting hose 12 and the water outlet pipe 5 are respectively connected to the flexible water jacket 9 through the openings at both ends of the roller body 2, a valve body is arranged in the water inlet pipe 4 and the water outlet pipe 5, and the valve body can control the water flow speed, and an extrusion plate 10 is arranged on one side of the roller body 2 close to the connecting hose 12, and the extrusion plate 10 can move horizontally along the axis direction of the roller body 2.

[0019] Furthermore, a spring 11 is fixedly connected between the extrusion plate 10 and the inner surface of the roller body 2. When the interior of the flexible water jacket 9 is filled with coolant, the spring 11 is in a compressed state.

[0020] Furthermore, an inner hole is opened at the center of the extrusion plate 10 , and the connecting hose 12 passes through the inner hole on the surface of the extrusion plate 10 .

[0021] In this embodiment, the flexible water jacket 9 is used to contain the coolant to prevent the coolant from directly contacting the roller body 2, thereby preventing the roller body 2 from becoming damp and moldy. In actual use, the flexible water jacket 9 can be set to a double-layer structure, and the inner layer and the outer layer of the flexible water jacket 9 are connected by a flexible connecting piece. The double-layer structure of the flexible water jacket 9 is a water-filled part. After the flexible water jacket 9 is filled with coolant, the water-filled part of the flexible water jacket 9 fits the inner wall of the roller body 2, which can reduce the amount of coolant used while ensuring a good cooling effect.

[0022] In this embodiment, the extrusion plate 10 and the spring 11 are used together to assist in the discharge of the coolant inside the flexible water jacket 9. Specifically, when the flexible water jacket 9 is not filled with coolant, the extrusion plate 10 is located on one side of the water outlet pipe 5, and the spring 11 is in its original length state; when the flexible water jacket 9 is filled with coolant, the spring 11 is in a compressed state; when the coolant inside the flexible water jacket 9 is discharged, the compressed spring 11 gradually recovers, driving the extrusion plate 10 to move and squeeze the flexible water jacket 9, thereby achieving the purpose of assisting the discharge of the coolant inside the flexible water jacket 9.

[0023] It should be noted that the valve components in this embodiment can be used with any existing type of solenoid valve components to meet the simple liquid outflow control. Here, the type of solenoid valve components is not required. In addition, the solenoid valve components need to be equipped with a control machine as a controller to control the flow of the solenoid valve components. The control machine can be a PCB control board or a micro single-chip microcomputer. When the coolant is initially filled, the water inlet valve component is opened and the water outlet valve component is closed. When the flexible water jacket 9 is filled, the flow of the water inlet valve component is controlled to be equal to the flow of the water outlet valve component. When the coolant is discharged, the water inlet valve component is closed and the water outlet valve component is opened.

[0024] Furthermore, a water pump 3 is fixedly installed at the water inlet port of the water inlet pipe 4, a water storage tank 6 is fixedly installed at the water outlet port of the water outlet pipe 5, a connecting pipe 7 is arranged between the water pump 3 and the water storage tank 6, and a circulation processor 8 is arranged in the middle of the connecting pipe 7.

[0025] In this embodiment, the circulation processor 8 can be a hot and cold exchanger, which can exchange hot and cold water and re-cool the discharged coolant with increased temperature to facilitate the recycling of the coolant.

[0026] Furthermore, it also includes a frame 1, a roller body 2 is rotatably installed on the top of the frame 1 through a rotating shaft, a transmission wheel 13 is rotatably connected to the frame 1, a conveyor belt 15 is sleeved on the surface of the roller body 2 and the transmission wheel 13, a motor 14 is fixedly installed on the surface of the frame 1, and the power end of the motor 14 is fixedly connected to the transmission wheel 13.

[0027] In this embodiment, the driving motor 14 is driven to rotate, thereby driving the transmission wheel 13, the conveyor belt 15 and the roller body 2 to rotate, thereby ensuring the rotation printing function of the roller body 2.

[0028] It should be noted that the water pump 3, circulation processor 8, valve components, motor 14 and other devices in this application are all connected to the external power supply through wires, and the circuits and related driver programs involved are all existing conventional technologies and will not be repeated here.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0030] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A printing roller cooling device, comprising a roller body (2), characterized in that: The roller body (2) is hollow inside, and both ends of the roller body (2) are arranged as openings. A flexible water jacket (9) is arranged inside the roller body (2). A water inlet pipe (4) and a water outlet pipe (5) are arranged at both ends of the roller body (2). One end of the water inlet pipe (4) is partially arranged as a connecting hose (12). One end of the connecting hose (12) and the water outlet pipe (5) are connected to the flexible water jacket (9) through the openings at both ends of the roller body (2). A valve body is arranged inside the water inlet pipe (4) and the water outlet pipe (5). The valve body can control the water flow speed. A squeezing plate (10) is arranged on one side of the roller body (2) close to the connecting hose (12). The squeezing plate (10) can move horizontally along the axis direction of the roller body (2).

2. A printing roller cooling device according to claim 1, characterized in that: A spring (11) is fixedly connected between the extrusion plate (10) and the inner surface of the roller body (2); when the interior of the flexible water jacket (9) is filled with cooling liquid, the spring (11) is in a compressed state.

3. A printing roller cooling device according to claim 2, characterized in that: An inner hole is provided at the center of the extrusion plate (10), and the connecting hose (12) passes through the inner hole on the surface of the extrusion plate (10).

4. A printing roller cooling device according to claim 1, characterized in that: A water pump (3) is fixedly mounted on the water inlet port of the water inlet pipe (4), a water storage tank (6) is fixedly mounted on the water outlet port of the water outlet pipe (5), a connecting pipe (7) is arranged between the water pump (3) and the water storage tank (6), and a circulation processor (8) is arranged in the middle of the connecting pipe (7).

5. A printing roller cooling device according to claim 1, characterized in that: The invention also comprises a frame (1), wherein the roller body (2) is rotatably mounted on the top of the frame (1) via a rotating shaft, a transmission wheel (13) is rotatably connected to the frame (1), a conveyor belt (15) is sleeved on the surface of the roller body (2) and the transmission wheel (13), and a motor (14) is fixedly mounted on the surface of the frame (1), and a power end of the motor (14) is fixedly connected to the transmission wheel (13).

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