A thermostat device for gravure printing ink

Abstract

The utility model discloses a kind of constant temperature device of gravure press ink, it is related to printing technical field, including the cooling assembly for communicating ink groove and ink storage tank, cooling assembly is used to carry out cooling treatment to the ink conveyed between both;The cooling assembly includes the cylinder with built-in cooling pipeline, cooling pipeline is used to generate cooling environment atmosphere inside cylinder, cylinder is connected with ink groove, ink storage tank respectively, to make the ink by ink storage tank into cylinder is cooled and is discharged to ink groove with cooling.This utility model connects ink groove and ink storage tank by cooling assembly, realizes the active cooling treatment to ink, this design not only can replace original conveying pipeline to ink groove play the function of feeding, and it has the cooling function to ink, can effectively control ink temperature, prevent viscosity change or printing quality problem caused by ink overheating, to ensure the stability and consistency of printing process.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to a temperature control device for gravure printing ink. Background Technology

[0002] The existing design for ink filling in ink tanks involves an ink storage tank located below the ink tank. Two sets of pipes connect the storage tank to the ink tank; one set is an overflow pipe, extending one end into the ink tank to a certain height (the horizontal plane of which is flush with the designated ink level). The other set of pipes is a delivery pipe. A pump is installed inside the storage tank, which adds ink from the storage tank to the ink tank via the delivery pipe. During the ink filling process, if the ink level exceeds the designated ink level, the ink will flow back into the storage tank through the overflow pipe. This design is as follows: Figure 1 As shown, 101 represents the ink trough, 102 represents the ink storage box, 103 represents the overflow pipe, 104 represents the delivery pipe, and 105 represents the printing roller located in the ink trough. The dashed line in the figure represents the specified ink level.

[0003] Under normal circumstances, paper is conveyed by the printing rollers on the ink trough. Since the paper has been dried and heated during the aforementioned process, it has a certain amount of heat, which is transferred to the printing rollers. The printing rollers then transfer the heat to the ink in the ink trough, causing the ink temperature to rise. Because the paper has different production rhythms, the ink temperature will fluctuate during the production process. Since the ink viscosity is quite sensitive to temperature, temperature fluctuations will cause changes in ink flow, thereby affecting the color consistency of the printed product, the clarity of the printed dots, the leveling of the printed surface, and defects such as color difference.

[0004] Based on the ink feeding design of the ink tank in the existing technology, it generally relies on the airflow in the workshop for cooling. This cooling method has a poor cooling effect and it is difficult to keep the ink temperature in the ink tank constant, which can easily lead to production defects. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a constant temperature device for ink in a gravure printing machine. This device replaces the original conveying pipe by adding a cooling component. The cooling component not only adds ink to the ink tank, but also cools the ink, effectively maintaining a constant temperature for the ink in the ink tank and improving printing quality.

[0006] To solve the above problems, this utility model provides the following technical solution: A temperature control device for gravure printing ink includes a cooling component for connecting an ink tank and an ink storage box, the cooling component being used to cool the ink being transported between the two. The cooling component includes a cylinder with built-in cooling pipes, which are used to create a cooling environment inside the cylinder. The cylinder is connected to the ink tank and the ink storage box, so that the ink entering the cylinder from the ink storage box is cooled and discharged to the ink tank.

[0007] As a further embodiment of this utility model: the cooling pipe is designed in a disc shape, with its two ends extending out of the cylinder body as inlet and outlet respectively, and the inlet being located below the outlet.

[0008] As a further embodiment of this utility model, the device also includes a first pipe, the two ends of which are respectively connected to the ink storage box and the cylinder, and a drive source is provided on the first pipe.

[0009] As a further embodiment of this utility model: the device also includes a second pipe, the two ends of which are respectively connected to the ink tank and the cylinder, and a filter is provided on the first pipe; the cylinder is located above the ink tank so that the ink in the cylinder has a tendency to flow towards the ink tank.

[0010] As a further aspect of this invention, the device also includes a stirring assembly disposed on the cylinder.

[0011] As a further embodiment of this utility model: the stirring assembly includes a cover plate that is detachably mounted at the top of the cylinder, a motor is fixedly mounted on the cover plate, a stirring shaft is fixedly mounted on the motor output shaft, and the stirring shaft extends into the cylinder.

[0012] As a further embodiment of this utility model: the stirring shaft is provided with multiple sets of stirring rods along its length.

[0013] As a further embodiment of this utility model: an assembly ring is sleeved on the outside of the stirring shaft. The assembly ring is used for installing the stirring rods, and the assembly ring can slide along the length direction of the stirring shaft to achieve adjustable distance between any two adjacent stirring rods.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By connecting the ink tank and ink reservoir with a cooling component, active cooling of the ink is achieved. This design not only replaces the original conveying pipe for feeding the ink tank, but its ink cooling function effectively controls the ink temperature, preventing viscosity changes or printing quality problems caused by overheating, thus ensuring the stability and consistency of the printing process. Simultaneously, the combination of the cylinder and cooling pipes creates a highly efficient cooling environment, improving ink cooling efficiency, helping to extend ink life and reduce printing defects.

[0015] 2. The cooling pipe is designed in a disc shape, which increases the contact area with the ink and extends the flow path of the water in the cooling pipe, enhancing the heat exchange effect and thus improving the cooling efficiency. In addition, the inlet is located below the outlet, relying on the gravity of the water flow to slow down the outflow and increase the flow time.

[0016] 3. By installing a filter on the second pipe and positioning the cylinder above the ink tank, the filter effectively removes impurities or particles from the ink, preventing spots or blockages during printing and improving print quality. The cylinder's position above the ink tank utilizes gravity to allow the cooled ink to flow naturally into the ink tank, reducing reliance on external power and lowering energy consumption.

[0017] 4. Stirring ensures uniform mixing of the ink, preventing ink components from separating or settling, and ensuring consistent ink performance. Simultaneously, stirring helps break up skinning on the ink surface and promotes full contact between the ink and the cooling environment, thereby improving cooling efficiency.

[0018] 5. The distance between the stirring rods is adjustable by means of the assembly ring. Technicians can adjust the spacing of the stirring rods according to the characteristics of the ink itself (viscosity, weight) or process requirements (ink level) to optimize the stirring effect. This adjustable design avoids over-stirring or under-stirring that may be caused by a fixed stirring rod. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the existing ink trough feeding structure; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a front view structural diagram of the stirring assembly of this utility model, embodiment one; Figure 4 This is a front view structural diagram of the stirring assembly of this utility model, Embodiment 2; Figure 5 yes Figure 4 A schematic diagram of a local structure.

[0021] In the diagram: 101, ink trough; 102, ink reservoir; 103, overflow pipe; 104, conveying pipe; 105, printing roller; 1. Cylinder; 2. Cooling pipe; 3. First pipe; 4. Drive source; 5. Second pipe; 6. Filter; 7. Cover plate; 8. Motor; 9. Stirring shaft; 10. Stirring rod; 11. Assembly ring; 12. Fastener. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Because the ink storage box 102 is integrated below the ink tank 101 on the production line, modifying its interior not only requires machine shutdown but also presents difficulties due to the limited space. Therefore, in Figure 1 The ink feeding design of the ink trough 101 in the prior art shown is improved in this application as follows: (1) Remove the conveying pipe 104 used to convey ink from the ink storage box 102 to the ink tank 101; (2) Remove the pump body from the ink reservoir 102; (3) A cooling component is added. The cooling component is used to cool down the ink conveyed from the ink storage box 102 to the ink tank 101.

[0024] like Figure 2 As shown, a temperature control device for gravure printing ink includes an added cooling component. The cooling component includes a cylinder 1, with a first pipe 3 and a second pipe 5 connected to the cylinder 1. The first pipe 3 is connected to an ink storage tank 102, and the second pipe 5 is connected to an ink trough 101. The first pipe 3 connects the ink storage tank 102 to the cylinder 1, and the second pipe 5 connects the cylinder 1 to the ink trough 101. A cooling pipe 2 is also provided inside the cylinder 1 to create a cooling environment. Under normal circumstances, when ink at a certain temperature in the ink storage tank 102 enters the cylinder 1 through the first pipe 3, it is cooled by the cooling environment created by the cooling pipe 2 and then discharged into the ink trough 101 through the second pipe 5. This portion of ink mixes with the ink in the ink trough 101, resulting in an overall temperature reduction of the mixed ink. During this process, ink exceeding the ink level in the ink tank 101 will flow back into the ink storage tank 102 through the overflow pipe 103. By repeatedly passing the ink in the ink storage tank 102 through the inside of the cylinder 1, the ink tank 101, and finally back to the ink storage tank 102, the ink in the ink tank 101 can be kept at a constant temperature. The specific constant temperature value can be set by the cooling environment inside the cylinder 1. This is existing technology and will not be elaborated on here.

[0025] Regarding the flow of ink within the first pipe 3, cylinder 1, and second pipe 5 in the aforementioned process, this application can provide a drive source 4 on the first pipe 3, or replace the drive source 4 with a pump that was originally located in the ink storage tank 102 and has been removed, thereby enabling the first pipe 3 to drive the movement of ink and thus allowing the ink in the ink storage tank 102 to flow towards the inside of the cylinder 1. Similarly, a new pump can be added to the second pipe 5, enabling the second pipe 5 to also drive the movement of ink and allowing the ink in the cylinder 1 to flow towards the ink tank 101. However, to avoid the need for this additional pump and save on operating costs, this application positions the cylinder 1 above the ink tank 101. This layout design gives the ink in the cylinder 1 a tendency to flow towards the ink tank 101.

[0026] Furthermore, to ensure that the ink flowing into the ink tank 101 is free of impurities, this application provides a filter 6 on the second pipe 5. The filter 6 filters the ink, keeping it pure and improving printing quality. It should be noted that the filter 6 can be any conventional filter component or its derivative in the prior art, and this application is not limited to this.

[0027] Regarding the formation of a cooling environment inside the cylinder 1 by the aforementioned cooling pipe 2, both ends of the cooling pipe 2 can be extended outside the cylinder 1, with one end designated as an inlet 201 and the other as an outlet 202. Both inlet 201 and outlet 202 are connected to external water pipes, allowing water to flow into inlet 2021 and simultaneously outlet 202, thus ensuring that the cooling pipe 2 has the same temperature as the water flow. This temperature of the cooling pipe 2 creates a cooling environment inside the cylinder 1. Alternatively, the inlet 201 and outlet 202 of the cooling pipe 2 can be connected to a prior art cooling system, which also provides a cooling environment for the cooling pipe 2.

[0028] Preferably, in order to delay the time that the water flows in the cooling pipe 2 so as to fully absorb the heat of the ink in the cylinder 1, this application sets the cooling pipe 2 in a disc shape to extend the flow path of the water in the cooling pipe 2. On the other hand, the inlet 201 is set below the outlet 202, relying on the gravity of the water flow itself to slow down the water flow out and increase the flow time.

[0029] In order for the ink to be cooled evenly inside cylinder 1, such as Figure 3As shown, this application provides a stirring assembly on the cylinder 1. In some specific embodiments, the stirring assembly includes a cover plate 7 detachably mounted at the top of the cylinder 1. A motor 8 is fixedly mounted on the cover plate 7, and a stirring shaft 9 is fixedly mounted on the output shaft of the motor 8. The stirring shaft 9 extends into the cylinder 1, and multiple stirring rods 10 are arranged along its length. When the motor 8 is started, the stirring shaft 9 and the stirring rods 10 rotate, thereby stirring the ink inside the cylinder 1 and achieving thorough mixing of the ink in the upper and lower parts.

[0030] Furthermore, since the ink level inside cylinder 1 will be at different heights under different production cycles, the aforementioned stirring assembly can be used when the ink level inside cylinder 1 is at a high level. However, when the ink level inside cylinder 1 is at a low level, the stirring rod 10 in the aforementioned stirring assembly may not be able to extend below the ink level for stirring. Therefore, this application proposes a new stirring assembly, such as... Figure 4 As shown, based on the original stirring assembly with stirring shaft 9 and stirring rod 10, the distance between any two adjacent stirring rods 10 is set to be adjustable. When the ink level in the cylinder 1 is at a low level, the stirring rods 10 on the stirring shaft 9 can be adjusted downwards, so that multiple sets of stirring rods 10 are concentrated below the stirring shaft 9 and below the liquid level, and the ink at the low level can be thoroughly and well stirred.

[0031] Specifically, such as Figure 5 As shown, for the adjustment design of the stirring rod 10 on the stirring shaft 9, an assembly ring 11 can be sleeved on the outside of the stirring shaft 9. The assembly ring 11 is used for the installation of the stirring rod 10. The assembly ring 11 can slide along the length direction of the stirring shaft 9, and a fastener (e.g., a bolt) 12 is provided on the assembly ring 11. When the assembly ring 11 moves to the designated position, the fastener 12 is driven to tighten until the end of the fastener 12 touches the stirring shaft 9, so as to achieve stable maintenance after the distance between any two adjacent stirring rods 10 is adjusted.

[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A temperature control device for gravure printing ink, characterized in that, Includes a cooling assembly for connecting the ink reservoir (101) and the ink storage box (102), the cooling assembly being used to cool the ink being transported between the two; The cooling component includes a cylinder (1) with a built-in cooling pipe (2). The cooling pipe (2) is used to create a cooling environment inside the cylinder (1). The cylinder (1) is connected to the ink tank (101) and the ink storage box (102) respectively, so that the ink entering the cylinder (1) from the ink storage box (102) is cooled and discharged to the ink tank (101).

2. The temperature control device for gravure printing ink according to claim 1, characterized in that, The cooling pipe (2) is designed in a disc shape, with its two ends extending to the outside of the cylinder (1) as inlet (201) and outlet (202) respectively, and the inlet (201) is located below the outlet (202).

3. The temperature control device for gravure printing ink according to claim 2, characterized in that, The device also includes a first pipe (3), the two ends of which are connected to the ink storage box (102) and the cylinder (1) respectively, and a drive source (4) is provided on the first pipe (3).

4. The temperature control device for gravure printing ink according to claim 3, characterized in that, The device also includes a second pipe (5), the two ends of which are connected to the ink tank (101) and the cylinder (1) respectively, and a filter (6) is provided on the first pipe (3); the cylinder (1) is located above the ink tank (101) so that the ink in the cylinder (1) has a tendency to flow toward the ink tank (101).

5. A temperature control device for gravure printing ink according to any one of claims 1-4, characterized in that, The device also includes a stirring assembly disposed on the cylinder (1).

6. The temperature control device for gravure printing ink according to claim 5, characterized in that, The stirring assembly includes a cover plate (7) that is detachably mounted at the top of the cylinder (1), a motor (8) is fixedly mounted on the cover plate (7), and a stirring shaft (9) is fixedly mounted on the output shaft of the motor (8), and the stirring shaft (9) extends into the cylinder (1).

7. The temperature control device for gravure printing ink according to claim 6, characterized in that, The stirring shaft (9) is provided with multiple sets of stirring rods (10) along its length.

8. The temperature control device for gravure printing ink according to claim 7, characterized in that, An assembly ring (11) is fitted around the outside of the stirring shaft (9). The assembly ring (11) is used for the installation of the stirring rod (10), and the assembly ring (11) can slide along the length of the stirring shaft (9) to achieve adjustable distance between any two adjacent stirring rods (10).

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