Printing plate temperature control device for waterless offset printing

Abstract

The utility model provides a printing plate temperature control device for waterless offset printing, which relates to the technical field of temperature control and comprises a cooling water tank, a cooling water pipe group is fixedly mounted at one end of the cooling water tank, a cooling flow guide frame is fixedly mounted at one end of the cooling water pipe group, and a stirring rod group is fixedly mounted in the cooling flow guide frame. The printing plate cooling device has the advantages that the temperature detection structures are arranged in the middle and on the two sides of the printing plate respectively, the sealing storage structures located on the two sides of the printing plate and the cooling structure located on one side of the printing plate are controlled to work according to the difference value of temperature detection, and the middle and the two sides of the printing plate can be cooled through the cooling structures respectively; and the two sides of the printing plate can be rapidly cooled through sublimation of the dry ice particles stored in the sealed storage structure, the temperature difference between the two sides and the middle of the printing plate can be conveniently and rapidly adjusted, the overall temperature balance of the printing plate can be guaranteed, and the working stability of the printing plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control, in particular to a temperature control device for a printing plate of waterless offset printing. Background Art

[0002] Waterless offset printing is a lithographic printing method that uses a silicone rubber layer on the plate as a blank area, eliminating the need for dampening and printing with specialized inks. Waterless offset printing utilizes a silicone coating on the plate as a non-printing area, eliminating the need for water-ink balance control and the use of water as a medium. During the operation of waterless offset printing equipment, the surface temperature of the printing plate must be controlled to prevent excessively high ink temperatures from causing plate smearing.

[0003] However, the existing plate temperature control device is not convenient for quickly cooling both sides of the printing plate due to the high temperature on both sides of the printing plate during use, and is not convenient for quickly reducing the temperature difference between the middle temperature of the printing plate and the temperature on both sides of the printing plate. Utility Model Content

[0004] Therefore, the purpose of the present invention is to provide a temperature control device for a printing plate of waterless offset printing, so as to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present invention provides a waterless offset printing plate temperature control device, including a waterless offset printing plate, the surface of the waterless offset printing plate is provided with an ink outlet groove, three temperature sensors are fixedly installed inside the waterless offset printing plate, the temperature sensor signals are connected to the main control unit, the main control unit signals are connected to the heating plate and the cooling water tank, a cooling water pipe group is fixedly installed at one end of the cooling water tank, a cooling guide frame is fixedly installed at one end of the cooling water pipe group, a stirring rod group is fixedly installed inside the cooling guide frame, a guide groove is opened inside the cooling guide frame, and a temperature insulating sealing box fixedly installed with the cooling guide frame is provided on one side of the guide groove.

[0006] Preferably, any of the above schemes is that a printing plate boss is provided in the middle of the waterless offset printing plate, the ink outlet groove is opened inside the printing plate boss, and a fixing groove adapted to the temperature-insulating sealing box is opened at the bottom of the waterless offset printing plate.

[0007] The above technical solution is adopted: printing is performed through the printing plate boss of the waterless offset printing plate, and the ink outlet groove can outlet the ink to ensure the stability of the printing work. At the same time, the waterless offset printing plate is used to fix and support the thermal insulation sealed box, which is convenient for the use of dry ice inside the thermal insulation sealed box.

[0008] Preferably, from any of the above solutions, the three temperature sensors are distributed at equal intervals inside the waterless offset printing plate, and the heating plate is fixedly installed inside the waterless offset printing plate.

[0009] The above technical solution is adopted: three temperature sensors are used to detect the temperature of the end and both sides of the waterless offset printing plate respectively, the heating plate and the cooling water tank are controlled to work according to the detected temperature, and the heating plate is used to heat the waterless offset printing plate to ensure stable printing.

[0010] Preferably, the cooling water tank is located on one side of the waterless offset printing plate, a high-pressure water pump fixedly mounted to a cooling water pipe group is provided on the top of the cooling water tank, and the cooling water pipe group is fitted to the end face of the waterless offset printing plate.

[0011] Preferably, any of the above schemes is that a cold water trough connected to the cooling water pipe group is provided inside the cooling guide frame, the cold water trough is located on one side of the guide groove, and a plurality of air outlet holes are provided at one end of the guide groove.

[0012] The above technical solution is adopted: when the waterless offset printing plate needs to be cooled, the cooling water tank is controlled to pump cold water to the cooling water pipe group, and the cooling water is transported from the middle of the waterless offset printing plate to both sides through the cooling water pipe group. The heat-conducting cooling water of the cooling water pipe group first cools the middle of the waterless offset printing plate, and then flows to the cooling guide rack to cool both sides of the waterless offset printing plate. After cooling, the water pump lowers the water inside the cooling water pipe group and sends it back to the cooling water tank for cooling, so that it is convenient for reuse.

[0013] Preferably, from any of the above schemes, the stirring rod group includes a stirring motor and a stirring shaft, the stirring motor is fixedly mounted on one end of the cooling guide frame, the output end of the stirring motor is fixedly mounted with a stirring shaft rotatably connected to the cooling guide frame, and the stirring shaft is located inside the cold water tank.

[0014] The above technical solution is adopted: after the cooling water enters the interior of the cooling guide frame, the stirring motor can be controlled to output power to drive the stirring shaft to rotate, and the stirring shaft is used to stir the cooling water inside the cooling guide frame, so that the cooling water can fully absorb the temperature on both sides of the waterless offset printing plate, which is conducive to rapid cooling of both sides of the waterless offset printing plate.

[0015] Preferably, any of the above schemes comprises a thermally insulated sealed box comprising a dry ice pellet box, an electric telescopic rod and an insulation board, wherein the dry ice pellet box is fixedly mounted inside the waterless offset printing plate, an electric telescopic rod is fixedly mounted inside the dry ice pellet box, and an insulation board is fixedly mounted at one end of the electric telescopic rod.

[0016] The above technical solution is adopted: dry ice particles are stored inside the dry ice particle box. When it is necessary to quickly cool down both sides of the waterless offset printing plate, the electric telescopic rod is controlled to contract to drive the insulation plate, so that the dry ice particles enter the guide groove inside the cooling guide frame. The sublimation of the dry ice particles is used to absorb heat from both sides of the waterless offset printing plate, thereby quickly reducing the temperature on both sides of the waterless offset printing plate.

[0017] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0018] 1. Temperature detection structures are respectively set in the middle and both sides of the printing plate, and the sealed storage structures on both sides of the printing plate and the cooling structure on one side of the printing plate are controlled to work according to the difference in temperature detection. The middle and both sides of the printing plate can be cooled down respectively by the cooling structure, and the two sides of the printing plate can also be quickly cooled down by the sublimation of dry ice particles stored in the sealed storage structure, which is convenient for quickly adjusting the temperature difference between the two sides and the middle of the printing plate, which is beneficial to ensure the overall temperature balance of the printing plate and improve the stability of the printing plate operation.

[0019] 2. A stirring structure is set inside the cooling guide structure on both sides of the printing plate. The stirring structure can accelerate the efficiency of cooling water absorbing heat on both sides of the printing plate, further improve the efficiency of cooling both sides of the printing plate, and facilitate the control of the temperature of the printing plate.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the structure according to the first perspective of an embodiment of the present utility model;

[0023] Figure 2 2 is a schematic diagram of a second viewing angle structure according to an embodiment of the present utility model;

[0024] Figure 3 Schematic diagram of the structure of the stirring rod assembly according to an embodiment of the present utility model;

[0025] Figure 4 Schematic diagram of the cross-sectional structure of a thermal insulation sealed box according to an embodiment of the present utility model;

[0026] Figure 5 Schematic diagram of the cross-sectional structure of a waterless offset printing plate according to an embodiment of the present utility model;

[0027] Among them: 1-waterless offset printing plate, 2-ink outlet groove, 3-temperature sensor, 4-heating plate, 5-cooling water tank, 6-cooling water pipe group, 7-cooling guide frame, 8-stirring rod group, 81-stirring motor, 82-stirring shaft, 9-guide groove, 10-thermal insulation sealing box, 101-dry ice pellet box, 102-electric telescopic rod, 103-thermal insulation board. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0029] like Figure 1-5 As shown, a temperature control device for a waterless offset printing plate of an embodiment of the present invention comprises a waterless offset printing plate 1, an ink outlet groove 2 is provided on the surface of the waterless offset printing plate 1, three temperature sensors 3 are fixedly installed inside the waterless offset printing plate 1, the temperature sensor 3 signals are connected to the main control unit, the main control unit signals are connected to the heating plate 4 and the cooling water tank 5, a cooling water pipe group 6 is fixedly installed at one end of the cooling water tank 5, a cooling guide frame 7 is fixedly installed at one end of the cooling water pipe group 6, a stirring rod group 8 is fixedly installed inside the cooling guide frame 7, a guide groove 9 is opened inside the cooling guide frame 7, and a temperature insulating sealing box 10 fixedly installed with the cooling guide frame 7 is provided on one side of the guide groove 9.

[0030] Preferably, any of the above schemes is that a printing plate boss is provided in the middle of the waterless offset printing plate 1, the ink outlet groove 2 is opened inside the printing plate boss, and a fixing groove adapted to the heat-insulating sealing box 10 is opened at the bottom of the waterless offset printing plate 1.

[0031] The above technical solution is adopted: printing is performed through the printing plate boss of the waterless offset printing plate 1, and the ink outlet groove 2 can outlet the ink to ensure the stability of the printing work. At the same time, the waterless offset printing plate 1 is used to fix and support the thermal insulation sealed box 10, which is convenient for the use of dry ice inside the thermal insulation sealed box 10.

[0032] Preferably, from any of the above solutions, the three temperature sensors 3 are distributed at equal intervals inside the waterless offset printing plate 1 , and the heating plate 4 is fixedly installed inside the waterless offset printing plate 1 .

[0033] The above technical solution is adopted: three temperature sensors 3 are used to detect the temperature at the end and both sides of the waterless offset printing plate 1 respectively, and the heating plate 4 and the cooling water tank 5 are controlled to work according to the detected temperature. The heating plate 4 is used to heat the waterless offset printing plate 1 to ensure stable printing.

[0034] Preferably, from any of the above schemes, the cooling water tank 5 is located on one side of the waterless offset printing plate 1, and a high-pressure water pump fixedly installed with a cooling water pipe group 6 is provided at the top of the cooling water tank 5, and the cooling water pipe group 6 is in contact with the end face of the waterless offset printing plate 1.

[0035] Preferably, any of the above schemes is provided with a cold water trough in communication with the cooling water pipe group 6 inside the cooling guide frame 7 , the cold water trough is located on one side of the guide groove 9 , and a plurality of air outlets are provided at one end of the guide groove.

[0036] The above technical solution is adopted: when the waterless offset printing plate 1 needs to be cooled, the cooling water tank 5 is controlled to pump cold water to the cooling water pipe group 6, and the cooling water is transported from the middle of the waterless offset printing plate 1 to both sides through the cooling water pipe group 6. The heat-conducting cooling water of the cooling water pipe group 6 first cools the middle of the waterless offset printing plate 1, and then flows to the cooling guide frame 7 to cool the two sides of the waterless offset printing plate 1. After cooling, the water pump lowers the water inside the cooling water pipe group 6 and pumps it back to the cooling water tank 5 for cooling, so that it is convenient for reuse.

[0037] Preferably, from any of the above schemes, the stirring rod group 8 includes a stirring motor 81 and a stirring shaft 82, the stirring motor 81 is fixedly mounted on one end of the cooling guide frame 7, and the output end of the stirring motor 81 is fixedly mounted with a stirring shaft 82 which is rotatably connected to the cooling guide frame 7, and the stirring shaft 82 is located inside the cold water tank.

[0038] The above technical solution is adopted: after the cooling water enters the interior of the cooling guide frame 7, the stirring motor 81 can be controlled to output power to drive the stirring shaft 82 to rotate, and the stirring shaft 82 is used to stir the cooling water inside the cooling guide frame 7, so that the cooling water can fully absorb the temperature on both sides of the waterless offset printing plate 1, which is beneficial to the rapid cooling of both sides of the waterless offset printing plate 1.

[0039] Preferably, any of the above schemes is that the thermally insulated sealed box 10 includes a dry ice pellet box 101, an electric telescopic rod 102 and an insulation board 103. The dry ice pellet box 101 is fixedly installed inside the waterless offset printing plate 1. The electric telescopic rod 102 is fixedly installed inside the dry ice pellet box 101, and the insulation board 103 is fixedly installed at one end of the electric telescopic rod 102.

[0040] The above technical solution is adopted: dry ice particles are stored inside the dry ice particle box 101. When it is necessary to quickly cool down both sides of the waterless offset printing plate 1, the electric telescopic rod 102 is controlled to contract to drive the insulation plate 103, so that the dry ice particles enter the guide groove inside the cooling guide frame 7. The sublimation of the dry ice particles is used to absorb heat from both sides of the waterless offset printing plate 1, thereby quickly reducing the temperature on both sides of the waterless offset printing plate 1.

[0041] The utility model is a printing plate temperature control device for waterless offset printing, and its working principle is as follows:

[0042] The temperature sensor 3 detects the temperature of the waterless offset printing plate 1, controls the cooling water tank 5 to pump water to the cooling water pipe group 6 and then transports it to the inside of the cooling guide frame 7, controls the stirring motor 81 to drive the stirring shaft 82 to stir the water inside the cooling guide frame 7, controls the electric telescopic rod 102 to open the insulation plate 103, and the dry ice particles enter the interior of the cooling guide frame 7 from the inside of the dry ice particle box 101.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. Temperature detection structures are respectively set in the middle and both sides of the printing plate, and the sealed storage structures on both sides of the printing plate and the cooling structure on one side of the printing plate are controlled to work according to the difference in temperature detection. The middle and both sides of the printing plate can be cooled down respectively by the cooling structure, and the two sides of the printing plate can also be quickly cooled down by the sublimation of dry ice particles stored in the sealed storage structure, which is convenient for quickly adjusting the temperature difference between the two sides and the middle of the printing plate, which is beneficial to ensure the overall temperature balance of the printing plate and improve the stability of the printing plate operation.

[0045] 2. A stirring structure is set inside the cooling guide structure on both sides of the printing plate. The stirring structure can accelerate the efficiency of cooling water absorbing heat on both sides of the printing plate, further improve the efficiency of cooling both sides of the printing plate, and facilitate the control of the temperature of the printing plate.

Claims

1. A temperature control device for a waterless offset printing plate, comprising a waterless offset printing plate (1), wherein the surface of the waterless offset printing plate (1) is provided with an ink outlet groove (2), characterized in that: Three temperature sensors (3) are fixedly installed inside the waterless offset printing plate (1), the temperature sensors (3) are signal-connected to a main control unit, the main control unit is signal-connected to a heating plate (4) and a cooling water tank (5), one end of the cooling water tank (5) is fixedly installed with a cooling water pipe group (6), one end of the cooling water pipe group (6) is fixedly installed with a cooling guide frame (7), the interior of the cooling guide frame (7) is fixedly installed with a stirring rod group (8), the interior of the cooling guide frame (7) is provided with a guide groove (9), and one side of the guide groove (9) is provided with a temperature-insulating sealing box (10) fixedly installed with the cooling guide frame (7).

2. The temperature control device for a waterless offset printing plate according to claim 1, characterized in that: A printing plate boss is provided in the middle of the waterless offset printing plate (1), the ink outlet groove (2) is opened inside the printing plate boss, and a fixing groove adapted to the heat-insulating sealing box (10) is opened at the bottom of the waterless offset printing plate (1).

3. The temperature control device for a waterless offset printing plate according to claim 2, wherein: The three temperature sensors (3) are distributed at equal intervals inside the waterless offset printing plate (1), and the heating plate (4) is fixedly installed inside the waterless offset printing plate (1).

4. A printing plate temperature control device for waterless offset printing according to claim 3, characterized in that: The cooling water tank (5) is located on one side of the waterless offset printing plate (1), and a high-pressure water pump fixedly mounted on a cooling water pipe group (6) is provided at the top of the cooling water tank (5). The cooling water pipe group (6) is fitted with the end face of the waterless offset printing plate (1).

5. The printing plate temperature control device for waterless offset printing according to claim 4, characterized in that: A cold water trough connected to the cooling water pipe group (6) is provided inside the cooling guide frame (7). The cold water trough is located on one side of the guide groove (9). A plurality of air outlet holes are provided at one end of the guide groove.

6. A temperature control device for a waterless offset printing plate according to claim 5, characterized in that: The stirring rod group (8) includes a stirring motor (81) and a stirring shaft (82), wherein the stirring motor (81) is fixedly mounted on one end of the cooling guide frame (7), and the output end of the stirring motor (81) is fixedly mounted with a stirring shaft (82) that is rotatably connected to the cooling guide frame (7), and the stirring shaft (82) is located inside the cold water tank.

7. A printing plate temperature control device for waterless offset printing according to claim 6, characterized in that: The thermal insulation sealed box (10) comprises a dry ice particle box (101), an electric telescopic rod (102) and a thermal insulation board (103); the dry ice particle box (101) is fixedly installed inside a waterless offset printing plate (1); the electric telescopic rod (102) is fixedly installed inside the dry ice particle box (101); and the thermal insulation board (103) is fixedly installed at one end of the electric telescopic rod (102).

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