Oil temperature heating device for paper rolling gilding machine

Abstract

This utility model provides an oil temperature heating device for a roll paper hot stamping machine, including an oil tank. A heating tube is installed in the middle of the oil tank, and a serpentine oil tube is sleeved on the outer surface of the heating tube. A circulation pump is installed on the top surface of the oil tank. By using the heating tube, electric heating wire, and serpentine oil tube in combination, the uniformity of oil temperature heating in the hot stamping machine is improved. Compared with the traditional resistance wire heating method, this device, through the design of the serpentine oil tube, significantly increases the contact area and contact path between the oil and the heating tube, allowing the oil to absorb heat more fully and evenly. At the same time, the circulation pump drives the oil to circulate in the loop, further promoting the uniform distribution of oil temperature, effectively avoiding the problem of large oil temperature gradients, ensuring that the metal foil is heated evenly during the hot stamping process, thereby significantly improving the clarity and gloss of the hot stamping pattern and enhancing the quality of the roll paper product.

Description

Technical Field

[0001] This utility model relates to the field of hot stamping technology for roll paper, and in particular to an oil temperature heating device for a hot stamping machine for roll paper. Background Technology

[0002] In the hot stamping process for roll paper, the heating element is the core component ensuring the quality of the stamping. Roll paper hot stamping involves transferring metallic foil onto the paper surface under high temperature and pressure to create a beautiful decorative effect. The heating element temperature directly affects the melting state of the metallic foil and the adhesion of the transfer. Precise and stable heating elements allow the metallic foil to melt evenly and adhere tightly to the roll paper surface, resulting in a clear, high-gloss hot stamping pattern. Fluctuations or uneven heating elements can cause localized over- or under-melting of the metallic foil, leading to problems such as blurred patterns and peeling, severely impacting the aesthetics and quality of the roll paper product.

[0003] Currently, most roll-to-roll hot stamping machines use resistance wire heating devices for oil temperature control. This device heats the resistance wire by conducting electricity, transferring heat to the hot stamping fluid. However, this heating method has significant drawbacks: First, the resistance wire experiences locally high temperatures, and the heat transfer to the surrounding fluid varies in time and distance, resulting in a large temperature gradient where the fluid near the resistance wire is hotter than the fluid further away. When high-temperature and low-temperature hot stamping fluids alternately act on the hot stamping parts, it causes uneven heating of the metal foil, affecting the hot stamping effect.

[0004] Therefore, it is necessary to provide an oil temperature heating device for roll paper hot stamping machines to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides an oil temperature heating device for a roll paper hot stamping machine, which solves the problems in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides a heating device for hot stamping machine oil temperature, including an oil tank. A heating tube is installed in the middle of the oil tank, and a serpentine oil pipe is sleeved on the outer surface of the heating tube. A circulation pump is installed on the top surface of the oil tank. The input end of the circulation pump is connected to one end of the serpentine oil pipe through a pipe, and the output end of the circulation pump is connected to a connecting pipe. The other end of the connecting pipe is connected to the circulation oil pipe, which bypasses the hot stamping machine and is connected to the oil tank. An electric heating wire is installed inside the heating tube. By using the heating tube, electric heating wire, and serpentine oil pipe in combination, the uniformity of hot stamping machine oil temperature heating is improved. Compared with the traditional resistance wire heating method, this device, through the design of the serpentine oil pipe, significantly increases the contact area and contact path between the oil and the heating tube, allowing the oil to absorb heat more fully and evenly. Meanwhile, the circulating pump drives the oil to circulate in the circuit, which further promotes the uniform distribution of oil temperature, effectively avoids the problem of large oil temperature gradient, and ensures that the metal foil is heated evenly during the hot stamping process, thereby significantly improving the clarity and gloss of the hot stamping pattern and enhancing the quality of the roll paper product.

[0007] Preferably, the heating tube has an internal thread on its lower inner wall, and a sealing cap is spirally connected to the bottom end of the heating tube. The electric heating wire is mounted on the sealing cap. This spiral connection between the heating tube and the sealing cap, along with the design of the electric heating wire mounted on the sealing cap, makes the installation, disassembly, and maintenance of the electric heating wire very convenient. When the electric heating wire malfunctions, operators can quickly remove it for repair or replacement without complicated operations or specialized tools, greatly reducing equipment downtime, improving production efficiency, and lowering maintenance costs.

[0008] Preferably, a temperature sensor is installed inside the connecting pipe. By setting the temperature sensor, the oil temperature can be monitored in real time, and the temperature of the outlet oil can be monitored more accurately to monitor the oil temperature entering the hot stamping machine surface.

[0009] Preferably, an oil drain pipe is provided through the lower outer surface of the oil tank, and a valve is installed on the oil drain pipe. An oil inlet is provided on the surface of the oil tank. The oil drain pipe is provided through the lower outer surface of the oil tank, and a valve is installed on the oil drain pipe to facilitate the discharge and replacement of oil. An oil inlet is provided on the surface of the oil tank to facilitate the addition of oil.

[0010] Preferably, the bottom of the oil tank is provided with support legs, and there are multiple support legs, which are installed at equal intervals on the bottom surface of the oil tank. The multiple support legs distributed at equal intervals at the bottom of the oil tank improve the stability of the device.

[0011] Preferably, a controller is installed on the outer surface of the oil tank to control the operation of the entire device and realize intelligent operation.

[0012] Compared with related technologies, the oil temperature heating device for the roll hot stamping machine provided by this utility model has the following beneficial effects:

[0013] Compared to existing technologies, the oil heating device in this roll paper hot stamping machine, compared to traditional resistance wire heating, significantly increases the contact area and path between the oil and the heating element through a serpentine oil tube design. This allows the oil to absorb heat more fully and evenly. Simultaneously, a circulating pump drives the oil to circulate within the loop, further promoting uniform oil temperature distribution and effectively avoiding large temperature gradients. This ensures uniform heating of the metal foil during hot stamping, significantly improving the clarity and gloss of the hot stamped pattern and enhancing the quality of the roll paper product.

[0014] Secondly, the spiral connection structure between the heating element and the sealing cap, as well as the design of the heating wire being mounted on the sealing cap, makes the installation, disassembly, and maintenance of the heating wire extremely convenient. When the heating wire malfunctions, operators can quickly remove it for repair or replacement without complicated operations or specialized tools, greatly reducing equipment downtime, improving production efficiency, and lowering maintenance costs.

[0015] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0016] Figure 1 A schematic diagram of the oil temperature heating device for the hot stamping machine for roll paper provided by this utility model;

[0017] Figure 2 A schematic diagram of the serpentine oil pipe structure of the oil temperature heating device for the roll paper hot stamping machine provided by this utility model;

[0018] Figure 3 A schematic diagram of the sealing cover structure of the oil temperature heating device for the roll paper hot stamping machine provided by this utility model;

[0019] Figure 4 A schematic diagram of the electric heating wire structure of the oil temperature heating device for the roll paper hot stamping machine provided by this utility model;

[0020] Figure 5 A schematic diagram of the heating tube structure of the oil temperature heating device for the hot foil stamping machine provided by this utility model.

[0021] Numbering on the map:

[0022] 1. Oil tank; 2. Sealing cap; 3. Heating element; 4. Snake-shaped oil pipe; 5. Controller; 6. Circulation pump; 7. Connecting pipe; 8. Circulation oil pipe; 9. Temperature sensor; 10. Electric heating wire; 11. Oil drain pipe; 12. Oil inlet. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] First Embodiment

[0025] Please refer to the following: Figure 1-5 The hot stamping machine oil temperature heating device includes an oil tank 1. A heating tube 3 is installed in the middle of the oil tank 1. A serpentine oil tube 4 is sleeved on the outer surface of the heating tube 3. A circulation pump 6 is installed on the top surface of the oil tank 1. The input end of the circulation pump 6 is connected to one end of the serpentine oil tube 4 through a pipe. The output end of the circulation pump 6 is connected to a connecting pipe 7. The other end of the connecting pipe 7 is connected to a circulation oil tube 8. The circulation oil tube 8 bypasses the hot stamping machine and is connected to the oil tank 1. An electric heating wire 10 is installed inside the heating tube 3. By using the heating tube 3, the electric heating wire 10, and the serpentine oil tube 4 in combination, the uniformity of the hot stamping machine oil temperature is improved. Compared with the traditional resistance wire heating method, this device, through the design of the serpentine oil tube 4, greatly increases the contact area and contact path between the oil and the heating tube 3, so that the oil can absorb heat more fully and evenly. Meanwhile, the circulating pump 6 drives the oil to circulate in the circuit, further promoting the uniform distribution of oil temperature, effectively avoiding the problem of large oil temperature gradient, ensuring that the metal foil is heated evenly during the hot stamping process, thereby significantly improving the clarity and gloss of the hot stamping pattern and enhancing the quality of the roll paper product.

[0026] The working principle of the oil temperature heating device for the hot stamping machine provided by this utility model is as follows:

[0027] After the device is started, the controller 5 first controls the electric heating wire 10 to start working. The electric heating wire 10 is energized and generates heat, which is conducted to the heating tube 3. Because the heating tube 3 is sleeved with a serpentine oil pipe 4, the special structure of the serpentine oil pipe 4 greatly increases the contact area and contact path between the oil and the heating tube 3. Under the suction of the circulating pump 6, the oil in the oil tank 1 enters the serpentine oil pipe 4. During the process of flowing through the serpentine oil pipe 4, it makes full contact with the heating tube 3, thereby uniformly absorbing heat and achieving initial heating.

[0028] After initial heating, the oil flows out of the serpentine pipe 4 and enters the connecting pipe 7. At this time, the temperature sensor 9 inside the connecting pipe 7 begins to monitor the oil temperature in real time and feeds the temperature data back to the controller 5. If the oil temperature reaches the preset temperature value, the controller 5 controls the circulation pump 6 to operate at a normal flow rate, allowing the oil to bypass the hot stamping machine through the circulation pipe 8 and transfer heat to the hot stamping machine, providing stable temperature support for the hot stamping process. If the oil temperature does not reach the set value, the controller 5 controls the circulation pump 6 to reduce the oil flow rate, allowing the oil to stay in the serpentine pipe 4 for a longer time to continue absorbing heat until the temperature reaches the appropriate range.

[0029] Throughout the entire operation, the oil, driven by the circulating pump 6, continuously circulates in the loop formed by the oil tank 1, the serpentine oil pipe 4, the connecting pipe 7, and the circulating oil pipe 8, continuously providing heat to the hot stamping machine. Simultaneously, the temperature sensor 9 and the controller 5 form a closed-loop control system, monitoring and adjusting the oil temperature in real time to ensure it remains within a stable and precise range, meeting the stringent temperature requirements of the roll-to-roll hot stamping process. When the heating wire 10 malfunctions and requires repair or replacement, it can be easily operated by unscrewing the sealing cap 2 at the bottom of the heating tube 3, ensuring the normal operation of the device.

[0030] Compared with related technologies, the oil temperature heating device for the roll hot stamping machine provided by this utility model has the following beneficial effects:

[0031] Compared to traditional resistance wire heating, the oil heating device of this roll paper hot stamping machine significantly increases the contact area and path between the oil and the heating element 3 through the design of the serpentine oil pipe 4, allowing the oil to absorb heat more fully and evenly. Simultaneously, the circulating pump 6 drives the oil to circulate in the loop, further promoting uniform oil temperature distribution and effectively avoiding large temperature gradients. This ensures uniform heating of the metal foil during hot stamping, significantly improving the clarity and gloss of the hot stamping pattern and enhancing the quality of the roll paper product. Furthermore, the spiral connection structure between the heating element 3 and the sealing cover 2, along with the design of the heating wire 10 mounted on the sealing cover 2, makes the installation, disassembly, and maintenance of the heating wire 10 extremely convenient. When the heating wire 10 malfunctions, operators can quickly remove it for repair or replacement without complex operations or specialized tools, greatly reducing equipment downtime, improving production efficiency, and lowering maintenance costs.

[0032] Second Embodiment

[0033] Please refer to the following: Figure 1-5 Based on the oil temperature heating device for a roll-frozen hot stamping machine provided in the first embodiment of this application, the second embodiment of this application proposes an alternative oil temperature heating device for a roll-frozen hot stamping machine. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0034] Based on Example 1, see [link / reference] Figure 1-5The heating tube 3 has an internal thread on its lower inner wall, and a sealing cap 2 is spirally connected to its bottom end. The electric heating wire 10 is mounted on the sealing cap 2. This spiral connection between the heating tube 3 and the sealing cap 2, along with the design of the electric heating wire 10 mounted on the sealing cap 2, makes the installation, disassembly, and maintenance of the electric heating wire 10 very convenient. When the electric heating wire 10 malfunctions, operators can quickly remove it for repair or replacement without complicated operations or specialized tools, greatly reducing equipment downtime, improving production efficiency, and lowering maintenance costs.

[0035] Based on Example 1, see [link / reference] Figure 1-5 The connecting pipe 7 is equipped with a temperature sensor 9. The temperature sensor 9 is used to monitor the oil temperature in real time and to monitor the temperature of the outlet oil, so as to more accurately monitor the oil temperature entering the hot stamping machine surface.

[0036] Based on Example 1, see [link / reference] Figure 1-5 An oil drain pipe 11 is provided through the lower outer surface of the oil tank 1, and a valve is installed on the oil drain pipe 11. An oil inlet 12 is provided on the surface of the oil tank 1. The oil drain pipe 11 is provided through the lower outer surface of the oil tank 1, and a valve is installed on the oil drain pipe 11 to facilitate the discharge and replacement of oil. An oil inlet 12 is provided on the surface of the oil tank 1 to facilitate the addition of oil.

[0037] Based on Example 1, see [link / reference] Figure 1-5 The bottom of the oil tank 1 is provided with support legs, and there are multiple support legs. The multiple support legs are installed at equal distances on the bottom surface of the oil tank 1. The multiple support legs distributed at equal distances at the bottom of the oil tank 1 improve the stability of the device.

[0038] Based on Example 1, see [link / reference] Figure 1-5 A controller 5 is installed on the outer surface of the oil tank 1. The controller 5 is used to control the operation of the entire device and realize intelligent operation. The control circuit of the controller 5 can be implemented by those skilled in the art through simple programming. It is common knowledge in the art. It is only used and not modified. Therefore, the control method and circuit connection will not be described in detail.

[0039] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An oil heating device for a paper rolling gilding machine, comprising an oil tank (1), characterized in that, A heating tube (3) is installed in the middle of the oil tank (1). A serpentine oil pipe (4) is sleeved on the outer surface of the heating tube (3). A circulation pump (6) is installed on the top surface of the oil tank (1). The input end of the circulation pump (6) is connected to one end of the serpentine oil pipe (4) through a pipe. The output end of the circulation pump (6) is connected to a connecting pipe (7). The other end of the connecting pipe (7) is connected to a circulation oil pipe (8). The circulation oil pipe (8) bypasses the hot stamping machine and is connected to the oil tank (1). An electric heating wire (10) is installed inside the heating tube (3).

2. The oil heating device for a roll paper gilder according to claim 1, wherein The heating tube (3) has an internal thread on its inner wall, and a sealing cap (2) is spirally connected to the bottom end of the heating tube (3). The electric heating wire (10) is installed on the sealing cap (2).

3. The oil heating device for a roll paper gilder according to claim 1, wherein A temperature sensor (9) is installed inside the connecting pipe (7).

4. The oil temperature heating device for a roll paper hot stamping machine according to claim 1, characterized in that, An oil drain pipe (11) is provided through the lower outer surface of the oil tank (1), a valve is installed on the oil drain pipe (11), and an oil inlet (12) is provided on the surface of the oil tank (1).

5. The oil heating device for a roll paper gilder according to claim 1, wherein The bottom of the oil tank (1) is provided with a support leg, and there are multiple support legs, which are installed at equal distances on the bottom surface of the oil tank (1).

6. The oil heating device for a roll paper gilder according to claim 1, wherein A controller (5) is installed on the outer surface of the oil tank (1).

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