Digital heat transfer printing water cooling device and digital heat transfer printing system

Abstract

The utility model provides a digital heat transfer printing system which comprises a water cooling device, the water cooling device comprises a cropping table, a condensation assembly, a water storage tank and a water chilling unit, and the water chilling unit is provided with at least one chilled water outlet and at least one chilled water backflow port; the water storage tank is a hollow tank body, the bottom surface of the water storage tank is provided with at least one first water outlet connected with the chilled water reflux inlet, and the top surface of the water storage tank is provided with at least one first water inlet; the condensation assembly is provided with at least one second water inlet and a second water outlet, the second water outlet is connected with the first water inlet, and the second water inlet is connected with the chilled water outlet; and the cropping table is arranged above the condensation assembly. According to the heat transfer printing system, an existing heat transfer printing machine does not need to be transformed, the fabric after transfer printing is stable in breadth and free of dead marks, and the processing time is short.

Description

Technical Field

[0001] The utility model relates to the technical field of printing and dyeing, and in particular to a digital thermal transfer water cooling device. Background Art

[0002] The digital thermal transfer printing process is to place the patterned side of the transfer printing paper close to the fabric to be transferred and feed it into the roller thermal transfer machine at the same time, and transfer the dye by using the sublimation phenomenon of the dye at 180℃-230℃. When the fabric just comes out of the thermal transfer machine, the temperature reaches 65℃-80℃. If the printed fabric is not cooled down in time, the fabric will have quality problems such as secondary sublimation migration of color, unstable width, and dead marks.

[0003] In the prior art, the production process of a digital thermal transfer workshop is usually that after the fabric and transfer paper pass through the transfer machine, the finished product is usually cooled naturally, cooled by a fan, or cooled by a roller with water. After cooling, the finished product is sent to the fabric inspection workshop for inspection, rolling, and packaging. However, natural cooling or air cooling takes a long time, and has poor effects on secondary sublimation migration of fabric color, unstable width, and the appearance of dead marks, and the processing time is also long. The roller water-cooling device has relatively high requirements for the equipment of the transfer machine. Two water-cooled rollers need to be installed at the position where the transfer machine drops the cloth. When the roller condenser tube is filled with condensed water, the mass is large, and the strength requirements for the digital thermal transfer machine frame are high, and an additional transmission motor needs to be added. In addition, if Figure 1 As shown in the figure, the fabric is in a state of tension and pulling under the mutual pulling force of the two water-cooled rollers and the power roller, and the width of the fabric has not recovered to its natural state. At this time, the width will be smaller than the actual width. Under the state of tension and pulling, the fabric with a temperature of 65℃-80℃ is quickly cooled by the water-cooled roller, which will cause the width of the finished fabric to become narrower. Utility Model Content

[0004] In order to solve the above technical problems, the utility model aims to provide a digital thermal transfer water cooling device with a simple structure, which can efficiently and stably cool down the fabric in time and has a wide range of applications.

[0005] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0006] A digital thermal transfer water cooling device, characterized in that the device includes a cloth drop platform, a condensation component, a water storage tank and a chiller, the chiller is provided with at least one chilled water outlet and at least one chilled water return port; the water storage tank is a hollow box, its bottom surface is provided with at least one first water outlet connected to the chilled water return port, and its top surface is provided with at least one first water inlet; the condensation component has at least one second water inlet and a second water outlet, the second water outlet is connected to the first water inlet, and the second water inlet is connected to the chilled water outlet; the cloth drop platform is arranged above the condensation component.

[0007] Preferably, the cloth landing platform is an L-shaped curved metal plate or a flat metal plate.

[0008] Preferably, the device further comprises a cloth blocking rod frame, and the cloth blocking rod is mounted on one side of the cloth dropping platform.

[0009] Preferably, the condensation assembly includes at least one group of U-shaped condensation tubes.

[0010] Preferably, the device further comprises a heat-insulating layer, and the heat-insulating layer is arranged between the chiller and the condensing assembly.

[0011] A digital thermal transfer system includes a digital thermal transfer machine and a cloth inspection machine, characterized in that the system also includes the digital thermal transfer water cooling device, and the digital thermal transfer water cooling device is arranged between the digital thermal transfer machine and the cloth inspection machine.

[0012] The beneficial technical effects of the utility model include the following points:

[0013] (1) Wide range of applications. The integrated digital thermal transfer water cooling device is an external device and is not part of the mechanical structure of the digital thermal transfer machine. It has no requirements for the digital thermal transfer machine itself and can be applied to all digital thermal transfer machines.

[0014] (2) The L-shaped steel plate arc surface cloth drop table of the utility model increases the contact area and time of the fabric. The two sets of connected curved U-shaped condenser tubes under the table can quickly take away the heat on the L-shaped steel plate arc surface cloth drop table, and the direction of cold water transfer is opposite to that of the fabric transfer, which can make full use of the chilled water in the high-efficiency and low-utilization condenser tubes, so that the cooling effect is better and the heat transfer efficiency is higher; the fabric naturally returns to a relaxed state on the L-shaped steel plate arc surface cloth drop table, and then is fully cooled. This has no effect on the width of the fabric;

[0015] (3) The cloth transferred by the digital thermal transfer machine falls into the digital thermal transfer water cooling device for cooling, and then the production process of cloth inspection and rolling can be directly carried out, which shortens the production time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a roller water cooling device in the prior art.

[0017] Figure 2 This is a schematic diagram of the digital thermal transfer system of the utility model.

[0018] Figure 3 Schematic diagram of the digital thermal transfer water cooling device.

[0019] Figure 4 It is a cloth retaining rod frame of a digital thermal transfer water cooling device.

[0020] Figure 5 It is the cloth landing platform of the digital thermal transfer water cooling device.

[0021] Figure 6 It is a U-shaped condenser for the digital thermal transfer water cooling device.

[0022] Figure 7 It is the insulation layer of the digital thermal transfer water cooling device.

[0023] Figure 8 It is a water storage tank for the digital thermal transfer water cooling device.

[0024] Fig. 9 It is a water chiller for digital thermal transfer water cooling device. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0029] See also Figure 2 The digital heat transfer system of the utility model shown comprises a digital heat transfer machine 20, a digital heat transfer water cooling device 10 and a cloth inspection machine 30, wherein the digital heat transfer water cooling device 10 is arranged between the digital heat transfer machine 20 and the cloth inspection machine 30. After being transferred by the digital heat transfer machine 20, the fabric falls on the digital heat transfer water cooling device 10, and can naturally return to a relaxed state and be fully cooled, and then be placed in the cloth inspection machine 30 for cloth inspection.

[0030] See also Figure 3-9 As shown, the digital thermal transfer water cooling device 10 of the utility model includes a cloth retaining rod frame 1, an L-shaped curved cloth drop platform 2, two groups of U-shaped condensing pipes 3, a heat preservation layer 4, a water storage tank 5 and a chiller 6. The cloth retaining rod frame 1 is located at the low cloth outlet of the L-shaped curved cloth drop platform 2, which can greatly limit the fabric from leaving the surface of the L-shaped curved cloth drop platform 2 too early when entering the next cloth inspection process, resulting in insufficient cooling. Two groups of U-shaped condensing pipes 3 are closely attached to the bottom of the L-shaped curved cloth drop platform 2, wherein the water inlet 31 and the water inlet 32 ​​are respectively connected to the chilled water outlet 61 and the chilled water outlet 62 of the chiller 6; wherein the water outlet 33 and the water outlet 34 are respectively connected to the water inlet 51 and the water inlet 52 of the water storage tank 5. The water outlet 53 of the water storage tank 5 is connected to the chilled water return port 63 of the chiller 6. The insulation layer 4 is located between the two groups of U-shaped condensing tubes 3 and the chiller 6, and can be tightly wrapped under the U-shaped condensing tube 3, so as to isolate the heat absorption of the L-shaped curved cloth-dropping platform, that is, to ensure the efficient use of the chilled water, and to prevent the condensed water generated by the U-shaped condensing tube 3 from dripping on the chiller 6. Before the digital thermal transfer water cooling device 10 is turned on, a certain amount of water must be injected into the water storage tank 5, and the uncooled water enters the chiller refrigeration system through the chilled water return port 63 of the chiller 6 for refrigeration, and then the chilled water is injected into the U-shaped condensing tube 3 from the water inlet 31 and the water inlet 32 ​​at a constant flow and pressure through the water pump in the chiller 6. The U-shaped condensing tube 3 filled with chilled water will take away the heat of the fabric in contact with the L-shaped curved cloth-dropping platform 2, and the chilled water flowing out of the water outlet 33 and the water outlet 34 of the U-shaped condensing tube 3 will flow back into the water storage tank 5, and is in a state of waiting to enter the refrigeration system of the chiller 6 for refrigeration, and the cycle works in this way.

[0031] The utility model digital thermal transfer water cooling device 10, the L-shaped arc surface cloth drop table 2 and the two groups of U-shaped condenser tubes 3 are made of stainless steel materials with good thermal conductivity. When the fabric with a higher temperature is close to the L-shaped arc surface cloth drop table 2, the heat is transferred to the two groups of U-shaped condenser tubes 3 through the L-shaped arc surface cloth drop table 2, and the low-temperature frozen water in the two groups of U-shaped condenser tubes 3 continuously flows to take away the heat, thereby achieving the effect of cooling the fabric. The amplitude of the L-shaped shape is very good for supporting the fabric, and the fabric slowly slides downward due to the effect of gravity. The fabric will not be piled up, which can not only prevent the occurrence of dead marks, but also ensure that the fabric returns to its natural width before cooling. The L-shaped arc surface is covered with continuous U-shaped condenser tubes. The frozen water is transported from bottom to top through the condenser tube, and the fabric is transported from top to bottom, that is, the lowest temperature of the U-shaped condenser tube is the outlet of the fabric, and the highest temperature is the inlet of the fabric, so that the frozen water can be fully and efficiently utilized.

[0032] Several commonly used fabrics were selected, the same pattern was used for printing, and uniform production process parameters were used for production. Then, a roller water cooling device and a digital thermal transfer water cooling device 10 were used for cooling treatment, and the test data were compared.

[0033] The initial fabric temperature 0 is the temperature before the fabric enters the water cooling device; the fabric temperature 1 is the temperature after the fabric is cooled by the water cooling device. The finished product width is the width after the fabric is cooled by the water cooling device.

[0034] The temperature and width data measured by the roller water cooling device are shown in Table 1:

[0035]

[0036] The temperature and width data measured by the digital thermal transfer water cooling device 10 are shown in Table 2 below:

[0037]

[0038] Comparison of cooling temperatures between the two Table 3

[0039]

[0040] By comparing the temperature difference between the cooling temperature A of the roller water-cooling device and the cooling temperature B of the digital thermal transfer water-cooling device 10, the cooling effect is more obvious. By comparing the difference between the base fabric and the finished product width in Table 1 and Table 2, it can be seen that the L-shaped integrated digital thermal transfer water-cooling table has the least effect on the width.

[0041] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A digital thermal transfer water cooling device, characterized in that: The device comprises a cloth drop platform (2), a condensation assembly (3), a water storage tank (5) and a chiller (6). The chiller (6) is provided with at least one chilled water outlet (61, 62) and at least one chilled water return port (63); The water storage tank (5) is a hollow box body, the bottom surface of which is provided with at least one first water outlet (53) connected to the chilled water return port, and the top surface of which is provided with at least one first water inlet (51, 52); The condensing component (3) has at least one second water inlet (31, 32) and a second water outlet (33, 34), the second water outlet (33, 34) is connected to the first water inlet (51, 52), and the second water inlet (31, 32) is connected to the chilled water outlet (61, 62); The cloth landing platform (2) is arranged above the condensation component (3).

2. The digital thermal transfer water cooling device according to claim 1, characterized in that: The cloth landing platform (2) is an L-shaped curved metal plate or a flat metal plate.

3. The digital thermal transfer water cooling device according to claim 1, characterized in that: The device further comprises a cloth blocking rod frame (1), wherein the cloth blocking rod frame (1) is arranged on one side of the cloth dropping platform (2).

4. The digital thermal transfer water cooling device according to claim 1, characterized in that: The condensation assembly (3) comprises at least one group of U-shaped condensation tubes.

5. The digital thermal transfer water cooling device according to any one of claims 1 to 4, characterized in that: The device further comprises a heat-insulating layer (4), wherein the heat-insulating layer (4) is arranged between the chiller (6) and the condensing assembly (3).

6. A digital thermal transfer system, comprising a digital thermal transfer machine (20) and a fabric inspection machine (30), characterized in that: The system further comprises a digital thermal transfer water cooling device as claimed in any one of claims 1 to 5, wherein the digital thermal transfer water cooling device is arranged between the digital thermal transfer machine (20) and the fabric inspection machine (30).

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