Device capable of detecting quality and drying of DTF printed picture

Abstract

The utility model relates to a device capable of detecting the quality of DTF printed pictures and drying, which comprises a printer main body, a high-temperature-resistant transparent cover body is arranged at the front end of the printer main body, a lamp body mounting shell is arranged at the top end of the inner wall of the high-temperature-resistant transparent cover body, and an iodine tungsten heating lamp body is arranged at the bottom of the lamp body mounting shell. The energy-saving lamp tube has the functions of drying ink, preventing ink flowing, checking the quality and color of a product in production, improving the production efficiency, reducing the loss of productivity, adjusting the power of the lamp tube according to actual requirements, and not needing the maximum power operation of the lamp tube, so that the energy-saving effect is achieved, and when the ink is dried and the printing quality is detected, if the brightness is not enough, the energy is saved. And the brightness of the lamp can be increased through the knob, so that the quality of a colorful pattern can be seen more easily after penetrating through a picture.

Description

Technical Field

[0001] The utility model relates to the field of DTF printing, in particular to a device capable of detecting the quality of DTF printed images and drying them. Background Art

[0002] The DTF printer process involves printing a pattern onto a transfer film, applying hot melt powder, baking it in an oven, and finally transferring it to the garment via a press. Both color ink and white ink are used to print the pattern. The color ink creates the image's color, while the white ink adheres to the hot melt powder and masks the fabric's base color, preventing the color from being affected by the base color.

[0003] However, traditional DTF printers may encounter the following problems during use:

[0004] (1) DTF ink contains polyurethane, titanium dioxide, humectant and curing agent. Since the amount of ink absorbed by the transfer film is limited, it is easy to have ink flow problems. Therefore, the printed pattern needs to be dried immediately to remove the excess humectant, and the curing agent can also solidify quickly to ensure the integrity of the pattern.

[0005] (2) When printing a pattern on the transfer film, it is necessary to print the color first and then cover it with white ink. As a result, the color pattern is covered by the white ink, making it difficult to observe the quality of the printed color image. In many cases, problems with the pattern quality and color are found after the pattern comes out of the oven.

[0006] Therefore, we have proposed a device that can detect the quality and drying of DTF printed images. We added a light tube that can emit light and heat to the surface of the printer platform. The light can penetrate the printed pattern from the back, allowing the quality of the image to be seen, eliminating the process of cutting the image out for observation. It can also heat the ink, accelerate ink drying, solve the problem of easy ink bleeding, improve customers' work efficiency and reduce product loss. Utility Model Content

[0007] The purpose of the utility model is to overcome the shortcomings of the existing technology and meet practical needs. It provides a device that can detect the quality and drying of DTF printed images, so as to solve the problem that the current DTF ink composition includes polyurethane, titanium dioxide paste, humectant and curing agent. Since the amount of ink absorbed by the layer on the transfer film is limited, ink bleeding is likely to occur. Therefore, it is required that the printed pattern needs to be dried immediately to remove excess humectant, and the curing agent can also be quickly solidified to ensure the integrity of the pattern; the pattern printed on the transfer film needs to be printed in color first and then covered with white, so that the color pattern is covered by white ink, making it difficult to observe the quality of the printed color image. In many cases, the pattern quality and color cannot be detected after the pattern comes out of the oven.

[0008] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: designing a device that can detect the quality and drying of DTF printed images, including a printer body, a high-temperature resistant transparent cover is installed at the front end of the printer body, a lamp body mounting shell is installed at the top of the inner wall of the high-temperature resistant transparent cover, and an iodine tungsten heating lamp body is installed at the bottom of the lamp body mounting shell.

[0009] Preferably, a spiral thermocouple is installed at the bottom end of the interior of the high-temperature resistant transparent cover, and one end of the spiral thermocouple is connected to a first circuit.

[0010] Preferably, the other end of the first circuit extends out of the high-temperature resistant transparent cover and is connected to a temperature controller.

[0011] Preferably, one side of the iodine tungsten heating lamp body is connected to a second circuit, and one end of the second circuit is connected to a thyristor voltage regulator.

[0012] Preferably, one end of the thyristor voltage regulator is connected to a third circuit, and one end of the third circuit is connected to a temperature controller.

[0013] Preferably, an air switch and a knob switch are respectively installed at the front and rear ends of the side of the temperature controller.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model can help dry the ink during production and prevent ink from flowing. It can also check the quality and color of the product during production, thereby improving production efficiency and reducing production capacity loss.

[0016] 2. The utility model can adjust the lamp power according to actual needs, and does not require the lamp to run at maximum power, thereby achieving energy saving and drying the ink.

[0017] 3. When this utility model detects the print quality, if the brightness is not enough, you can increase the brightness of the light through the knob, so that it is easier to see the quality of the color pattern after it penetrates the picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1. Printer body; 2. High-temperature resistant transparent cover; 3. Lamp mounting shell; 4. Iodine-tungsten heating lamp body; 5. Spiral thermocouple; 6. First circuit; 7. Temperature controller; 8. Air switch; 9. Knob switch; 10. Second circuit; 11. Thyristor voltage regulator; 12. Third circuit. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0021] Example 1: A device for detecting the quality and drying of DTF printed images, see Figure 1 , including a printer body 1, a high-temperature resistant transparent cover 2 is installed at the front end of the printer body 1, a lamp body mounting shell 3 is installed at the top of the inner wall of the high-temperature resistant transparent cover 2, and an iodine tungsten heating lamp body 4 is installed at the bottom of the lamp body mounting shell 3. When the printed DTF film moves from the rear of the printing platform to the front high-temperature resistant transparent cover position, the air switch 8 is closed, and there will be electricity in the circuit. Press the knob switch 9, the temperature controller will work, set the temperature of the temperature controller, and the internal controller will compare the actual temperature with the set temperature, and control the switching state of the heating or cooling device according to the comparison result to achieve the purpose of temperature control. The temperature controller can realize ON / OFF control or more advanced PID control to achieve more precise temperature adjustment.

[0022] For details, see Figure 1 A spiral thermocouple 5 is mounted at the bottom of the high-temperature-resistant transparent cover 2. One end of the spiral thermocouple 5 is connected to a first circuit 6. The thermocouple detects temperature using the Seebeck effect. A thermocouple consists of two conductors of different compositions (such as nickel-chromium and nickel-silicon) forming a closed loop. When a temperature gradient exists between the two ends, an electromotive force (electromotive force) is generated in the loop. This thermomotive force is related to the temperature difference between the two ends. By measuring this electromotive force, the temperature of the measured medium can be determined, and then fed back to the temperature control to ensure that the heating tube can operate at a constant temperature.

[0023] For further information, see Figure 1 The other end of the first line 6 extends out of the high-temperature resistant transparent cover 2 and is connected to the temperature controller 7.

[0024] It is worth noting that, see Figure 1A second circuit 10 is connected to one side of the iodine-tungsten heating lamp body 4. One end of this circuit 10 is connected to a thyristor voltage regulator 11. The temperature controller transmits a 220V output voltage to the voltage regulator. The voltage waveform at both ends of the heating tube is altered by adjusting the conduction angle using the knob on the potentiometer regulator's thyristor, thereby changing the effective value of the voltage at the heating tube, achieving power and brightness control. When the thyristor conduction angle is 180°, the voltage waveform at the heating tube is sinusoidal, indicating a fully conductive state. When the thyristor conduction angle is less than 180°, indicating a partially conductive state, the effective value of the voltage decreases. The smaller the conduction angle, the fewer the conductive states, the lower the effective value of the voltage, and the lower the voltage at the heating tube. The heating tube receives the voltage from the potentiometer and converts electrical energy into light and heat, which is typically used to dry ink and monitor the quality of printed patterns on film. In a temperature control system, the heating tube acts as an actuator, turning on or off according to the temperature controller's instructions to regulate the system's temperature.

[0025] It is worth noting that see Figure 1 One end of the thyristor voltage regulator 11 is connected to the third line 12 , and one end of the third line 12 is connected to the temperature controller 7 .

[0026] It is worth mentioning that see Figure 1 , an air switch 8 and a knob switch 9 are respectively installed at the front and rear ends of the side of the temperature controller 7.

[0027] When the printed DTF film moves from the rear of the print platform to the front, where the heat-resistant transparent cover is located, close air switch 8, energizing the circuit. Pressing the rotary switch 9 activates the temperature controller, and the temperature is set. The internal controller compares the actual temperature with the set temperature and, based on the comparison, controls the heating or cooling device to achieve temperature control. The temperature controller can implement on / off control or more advanced PID control for more precise temperature regulation. The temperature controller transmits the 220V output voltage to the voltage regulator. By adjusting the conduction angle using the knob on the potentiometer's thyristor, the voltage waveform across the heater tube is altered, thereby changing the effective value of the voltage across the heater tube, achieving power and brightness adjustment. When the thyristor conduction angle is 180 degrees, the voltage waveform at the heater tube is sinusoidal, indicating full conduction. When the thyristor conduction angle is less than 180 degrees, indicating partial conduction, the voltage RMS decreases. The smaller the conduction angle, the fewer conduction states there are, and the lower the RMS voltage, resulting in a lower voltage at the heater tube. The heater tube receives the voltage from the potentiometer and converts electrical energy into light and heat. This is typically used to dry ink and monitor the quality of printed patterns on film. In a temperature control system, the heater tube acts as an actuator, turning on and off according to the temperature controller's instructions to regulate the system temperature. Thermocouples detect temperature using the Seebeck effect. A thermocouple consists of two conductors of different compositions (such as nickel-chromium and nickel-silicon) forming a closed circuit. When a temperature gradient exists between the two ends, an electromotive force (EMF) is generated in the circuit. This thermomotive force is related to the temperature difference between the two ends. By measuring this EMF, the temperature of the measured medium can be determined, and then fed back to the temperature controller to ensure constant temperature operation of the heater tube.

[0028] In actual applications, the above components work together: the thermocouple measures the temperature and provides a feedback signal to the temperature controller. The temperature controller decides whether heating is needed based on the difference between the set temperature and the actual temperature, and then controls the power of the heating tube through the potentiometer to achieve precise temperature control and brightness control.

[0029] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0030] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A device for detecting the quality and drying of DTF printed images, comprising a printer body (1), characterized in that: A high-temperature resistant transparent cover (2) is installed at the front end of the printer body (1), a lamp body mounting shell (3) is installed at the top of the inner wall of the high-temperature resistant transparent cover (2), and an iodine tungsten heating lamp body (4) is installed at the bottom of the lamp body mounting shell (3).

2. The device for detecting the quality and drying of DTF printed images according to claim 1, wherein: A spiral thermocouple (5) is installed at the bottom end of the interior of the high-temperature resistant transparent cover (2), and one end of the spiral thermocouple (5) is connected to a first circuit (6).

3. The device for detecting the quality and drying of DTF printed images according to claim 2, wherein: The other end of the first circuit (6) extends out of the high-temperature resistant transparent cover (2) and is connected to a temperature controller (7).

4. The device for detecting the quality and drying of DTF printed images according to claim 1, wherein: One side of the iodine-tungsten heating lamp body (4) is connected to a second circuit (10), and one end of the second circuit (10) is connected to a thyristor voltage regulator (11).

5. The device for detecting the quality and drying of DTF printed images according to claim 4, wherein: One end of the thyristor voltage regulator (11) is connected to a third circuit (12), and one end of the third circuit (12) is connected to a temperature controller (7).

6. The device for detecting the quality and drying of DTF printed images according to claim 3, wherein: An air switch (8) and a knob switch (9) are respectively installed at the front and rear ends of the side of the temperature controller (7).

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