Shielding oil evaporation device and vacuum coating machine
By adopting a split structure design in the shielding oil evaporation device, the temperature of the oil nozzle plate is ensured to be higher than the oil tank and oil vapor temperature, and the problems of uneven evaporation, low utilization rate and serious pollution in the prior art are solved, and more efficient shielding oil utilization and lower operation difficulty are achieved.
Patent Information
- Application Number
- CN202421454719.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In the prior art, the shielding oil evaporation device has problems such as difficult process control, uneven amount of evaporation coating oil, low utilization rate of shielding oil, and serious oil pollution.
A shielding oil evaporation device with a split structure is designed, including an oil pool heating device and an oil nozzle plate heating device. Through the split design, the temperature of the oil nozzle plate is always higher than the oil pool and oil vapor temperature, thereby achieving uniform evaporation.
It effectively improves the utilization rate of shielding oil, reduces operation difficulty, and reduces oil pollution, ensuring uniformity and stability of the evaporation process.
Smart Images
Figure CN222684728U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum coating, in particular to a shielding oil evaporation device and a vacuum coating machine using the shielding oil evaporation device. Background Art
[0002] At present, the metallized film for capacitors is vacuum-deposited, and the safety film shielding oil evaporation device used is a circular tubular internal heating type. The heating tube is immersed in the oil pool, and a horizontal long strip oil nozzle is opened on the upper part of the tube wall. During the evaporation process, the shielding oil is evenly evaporated and coated on the surface of the ink roller, and then the shielding oil coating is transferred to the printing roller equipped with the required safety film pattern mold sleeve through the ink roller. The shielding oil coating is printed and coated on the dielectric material film through the printing roller, and the shielding oil is used to interfere with the metal adhesion function to complete the required metallized safety film evaporation with a shielding pattern.
[0003] However, in the actual process, due to the different molecular weights and evaporation temperatures of shielding oils, as well as the design limitations of shielding oil evaporation devices, there are problems such as difficulty in process control, uneven evaporation and coating oil amount, low shielding oil utilization, and serious oil pollution. Utility Model Content
[0004] The main purpose of the utility model is to provide a shielding oil evaporation device, aiming to provide a shielding oil evaporation device which can improve the utilization rate of shielding oil, reduce the difficulty of operation and reduce oil pollution.
[0005] In order to achieve the above-mentioned purpose, the utility model proposes a shielding oil evaporation device, which comprises:
[0006] An oil pool heating device, wherein the oil pool heating device is provided with an oil pool having an opening;
[0007] An oil nozzle plate heating device, the oil nozzle plate heating device is arranged on the oil pool heating device, the oil nozzle plate heating device is provided with an evaporation channel, and the evaporation channel is connected with the oil pool through the opening;
[0008] The oil nozzle plate has an oil nozzle opening. The oil nozzle plate is arranged on the oil nozzle plate heating device and is located at the outlet end of the evaporation channel.
[0009] Optionally, a groove is provided on the top of the oil nozzle plate heating device at a position corresponding to the evaporation channel, and the oil nozzle plate is arranged in the groove and fixed by a threaded fastener.
[0010] Optionally, the oil nozzle plate heating device is fixedly connected to the oil pool heating device via threaded fasteners, and a sealing ring is used to tightly fit the oil nozzle plate heating device and the oil pool heating device.
[0011] Optionally, the oil pool heating device is provided with a first heating tube for heating, and the oil nozzle plate heating device is provided with a second heating tube for heating.
[0012] Optionally, the shielding oil evaporation device further comprises an oil vapor dispersion plate, and the oil vapor dispersion plate is arranged at a position of the evaporation channel close to the outlet.
[0013] Optionally, the oil pool has a trapezoidal structure that is narrow at the top and wide at the bottom.
[0014] The utility model also provides a vacuum coating machine, which includes:
[0015] Unwinding device, used for unwinding dielectric film;
[0016] The shielding oil evaporation device as described above is used for gasification of shielding oil;
[0017] A coating cold drum device, wherein the coating cold drum device and the shielding oil evaporation device are arranged at intervals;
[0018] An aluminum metal evaporation device, wherein the aluminum metal evaporation device is arranged adjacent to the coating cold drum device;
[0019] A zinc metal evaporation device, wherein the zinc metal evaporation device is arranged adjacent to the coating cold drum device;
[0020] Winding device, used for winding metallized film;
[0021] There are multiple winding guide rollers, and the dielectric film passes through the shielding oil evaporation device, the coating cold drum device, the aluminum metal evaporation device and the zinc metal evaporation device in sequence under the traction of the unwinding device, the winding guide roller and the winding device to achieve evaporation and winding.
[0022] The technical solution of the utility model includes an oil pool heating device, an oil nozzle plate heating device and an oil nozzle plate. The oil pool heating device is used for heating the oil pool, and the oil nozzle plate heating device is used for heating the oil nozzle plate. Due to the split design, the temperature of the oil nozzle plate is always higher than the temperature of the oil pool and the oil vapor. Therefore, the technical problems existing in the prior art, such as the difficulty of process control, uneven evaporation and coating oil amount, low shielding oil utilization rate and serious oil pollution, are effectively solved, thereby achieving the technical effect of improving the shielding oil utilization rate, reducing the difficulty of operation and reducing oil pollution. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic structural diagram of an embodiment of the shielding oil evaporation device of the utility model;
[0024] Figure 2 This is a schematic structural diagram of an embodiment of the vacuum coating machine of the utility model;
[0025] Description of Figure Numbers:
[0026] Vacuum coating machine 100; unwinding device 10; shielding oil evaporation device 20; oil pool heating device 21; oil pool 211; first heating tube 212; oil nozzle plate heating device 22; second heating tube 221; oil nozzle plate 23; sealing ring 24; oil vapor dispersion plate 25; coating cold drum device 30; aluminum metal evaporation device 40; zinc metal evaporation device 50; winding device 60; winding guide roller 70; ink roller 80; printing roller 90. DETAILED DESCRIPTION
[0027] 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.
[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0031] The utility model provides a shielding oil evaporation device 20 .
[0032] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0033] In the embodiments of the present invention, Figure 1 As shown, the shielding oil evaporation device 20 includes an oil pool heating device 21, an oil nozzle plate heating device 22 and an oil nozzle plate 23, wherein the oil pool heating device 21 is provided with an oil pool 211 having an opening; the oil nozzle plate heating device 22 is arranged on the oil pool heating device 21, and the oil nozzle plate heating device 22 is provided with an evaporation channel, which is connected to the oil pool 211 through the opening; the oil nozzle plate 23 has an oil nozzle port, and the oil nozzle plate 23 is arranged on the oil nozzle plate heating device 22 and is located at the outlet end of the evaporation channel.
[0034] In the prior art, the heating tube is immersed in the bottom of the oil pool 211 to continuously heat and increase the shielding oil temperature. The shielding oil that reaches a certain temperature in a vacuum state vaporizes and evaporates through the transverse strip nozzle on the top of the oil pipe to be coated on the surface of the ink roller. The disadvantage is that the heating tube is immersed in oil, and the wall of the oil pipe is exposed to the heat dissipation faster, especially at the nozzle position, which is exposed to the oil vapor evaporation liquid surface. The temperature in this area is lower than the shielding oil temperature. During the evaporation process, part of the vaporized shielding oil can be evaporated through the nozzle and coated on the surface of the ink roller. Most of the vaporized oil condenses because the temperature at this position is lower than the oil vapor temperature. The condensed liquid shielding oil overflows the nozzle with the evaporation rising airflow and flows to the surroundings, which not only causes oil pollution and waste, but also makes it difficult to ensure the uniformity and stability of evaporation. The utility model divides the shielding oil heating device into two parts: heating of the oil pool 211 and heating of the oil nozzle plate 23. During the manufacturing process, the temperature of the oil nozzle plate 23 is always higher than the temperature of the oil pool 211 and the oil vapor, so as to avoid condensation of the evaporated oil vapor due to the excessively low nozzle temperature and delay the evaporation of the oil vapor, so that the shielding oil vaporization is smooth and uniform, thereby improving the utilization rate of the shielding oil and reducing oil pollution.
[0035] The technical solution of the utility model includes an oil pool heating device 21, an oil nozzle plate heating device 22 and an oil nozzle plate 23. The oil pool heating device 21 is used for heating the oil pool 211, and the oil nozzle plate heating device 22 is used for heating the oil nozzle plate 23. Due to the split design, the temperature of the oil nozzle plate 23 is always higher than the oil pool 211 and the oil vapor temperature. Therefore, the technical problems existing in the prior art, such as the difficulty of process control, uneven evaporation and coating oil amount, low shielding oil utilization rate and serious oil pollution, are effectively solved, thereby achieving the technical effect of improving the shielding oil utilization rate, reducing the difficulty of operation and reducing oil pollution.
[0036] In the embodiments of the present invention, Figure 1As shown, a groove is provided at the top of the oil nozzle plate heating device 22 at a position corresponding to the evaporation channel, and the oil nozzle plate 23 is provided in the groove and fixed by a threaded fastener. The groove is provided to realize the positioning of the oil nozzle plate 23, and a detachable connection method is adopted to facilitate the disassembly and assembly of the oil nozzle plate 23.
[0037] In the embodiments of the present invention, Figure 1 As shown, the oil nozzle plate heating device 22 is fixedly connected to the oil pool heating device 21 through threaded fasteners, and the oil nozzle plate heating device 22 and the oil pool heating device 21 are tightly fitted through a sealing ring 24. Under the same heating power conditions, the oil nozzle plate heating device 22 is small in size (about one-third of the total) and most of it is exposed above the shielding oil liquid surface, while the oil pool heating device 21 is filled with shielding oil and has a larger volume (about two-thirds of the total), so the surface heat dissipation and internal heat consumption are greater than those of the oil nozzle plate heating device 22. In addition, there is a section between the oil nozzle plate heating device 22 and the oil pool heating device 21, and a sealing ring 24 is sandwiched in the middle, and the heat conduction between the two is relatively weak. Therefore, the temperature of the oil nozzle plate heating device 22 part of the entire shielding oil evaporation device 20 is always higher than the temperature of the oil pool heating device 21 part and the oil vapor, which avoids the condensation of the oil vapor evaporation process when it encounters cold.
[0038] In the embodiments of the present invention, Figure 1 As shown, the oil pool heating device 21 is provided with a first heating tube 212 for heating, and the oil nozzle plate heating device 22 is provided with a second heating tube 221 for heating. The utility model is equipped with heating tubes in the oil pool heating device 21 and the oil nozzle plate heating device 22, respectively. Specifically, the oil pool heating device 21 is equipped with two first heating tubes 212 at the bottom, and the oil nozzle plate heating device 22 is equipped with two second heating tubes 221 at the top. By heating separately, the heat dissipation temperature of the oil nozzle part is prevented from being too low. By changing the structural design, the temperature of the oil nozzle part is always higher than the evaporation oil vapor temperature, which completely solves the problems of evaporation oil vapor spray blockage, uneven evaporation coating, oil pollution and waste.
[0039] In the embodiments of the present invention, Figure 1 As shown, the shielding oil evaporation device 20 also includes an oil vapor dispersion plate 25, which is arranged near the outlet of the evaporation channel. The shielding oil evaporated after heating first passes through the oil vapor dispersion plate 25, and then sprayed out from the oil nozzle opening of the oil nozzle plate 23 to evaporate on the dielectric film.
[0040] In the embodiments of the present invention, Figure 1As shown, the oil pool 211 is a trapezoidal structure that is narrow at the top and wide at the bottom. The trapezoidal structure design of the oil pool 211, which is narrow at the top and wide at the bottom, makes the evaporation liquid area gradually increase as the liquid level drops. The gradually increasing evaporation area during the process eases the rhythm of continuous heating required for evaporating oil molecules of different weights, making the controllability simpler and more orderly, and the oil vapor evaporation amount is continuously uniform and stable.
[0041] The utility model also provides a vacuum coating machine 100, such as Figure 2 As shown, the vacuum coating machine 100 includes a unwinding device 10, a shielding oil evaporation device 20, a coating cold drum device 30, an aluminum metal evaporation device 40, a zinc metal evaporation device 50, a winding device 60 and a winding guide roller 70. The specific structure of the shielding oil evaporation device 20 refers to the above embodiment. Since the vacuum coating machine 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.
[0042] In an embodiment of the utility model, the unwinding device 10 is used for unwinding the dielectric film, the shielding oil evaporation device 20 is used for gasification of the shielding oil, the coating cold drum device 30 is arranged at intervals from the shielding oil evaporation device 20, the aluminum metal evaporation device 40 is arranged adjacent to the coating cold drum device 30, the zinc metal evaporation device 50 is arranged adjacent to the coating cold drum device 30, the winding device 60 is used for winding the metallized film, and there are multiple winding guide rollers 70. Under the traction of the unwinding device 10, the winding guide rollers 70 and the winding device 60, the dielectric film passes through the shielding oil evaporation device 20, the coating cold drum device 30, the aluminum metal evaporation device 40 and the zinc metal evaporation device 50 in sequence to achieve evaporation and winding.
[0043] Specifically, when the vacuum degree of the vacuum chamber of the vacuum coating machine 100 reaches 10 -4 Mpa, the coating winding system is turned on, and when the dielectric material film is wound through the safety film module device required for evaporation which is pressed tightly on the coating cold drum device 39, the shielding oil evaporation device 20 heats and vaporizes the shielding oil, and sprays it evenly on the synchronously rotating ink roller 80 according to the amount required by the process. The rotating ink roller 80 transfers the shielding oil coating to the synchronously rotating printing roller 90 equipped with the required pattern mold sleeve of the safety film through close contact, and the shielding oil coating with the required safety film pattern is transferred to the dielectric film wound on the coating cold drum through the printing roller 90. The dielectric film with the shielding oil coating printed with the safety film pattern is wound through the metal evaporation source, and the shielding oil is used to interfere with the metal adhesion function to obtain the metalized safety film for capacitors with the required pattern by evaporation.
[0044] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A shielding oil evaporation device, characterized in that: The shielding oil evaporation device comprises: An oil pool heating device, wherein the oil pool heating device is provided with an oil pool having an opening; An oil nozzle plate heating device, the oil nozzle plate heating device is arranged on the oil pool heating device, the oil nozzle plate heating device is provided with an evaporation channel, and the evaporation channel is connected with the oil pool through the opening; The oil nozzle plate has an oil nozzle opening. The oil nozzle plate is arranged on the oil nozzle plate heating device and is located at the outlet end of the evaporation channel.
2. The shielding oil evaporation device according to claim 1, characterized in that: A groove is provided on the top of the oil nozzle plate heating device at a position corresponding to the evaporation channel, and the oil nozzle plate is arranged in the groove and fixed by a threaded fastener.
3. The shielding oil evaporation device according to claim 1, characterized in that: The oil nozzle plate heating device is fixedly connected to the oil pool heating device via a threaded fastener, and the oil nozzle plate heating device and the oil pool heating device are tightly fitted via a sealing ring.
4. The shielding oil evaporation device according to claim 1, characterized in that: The oil pool heating device is provided with a first heating tube for heating, and the oil nozzle plate heating device is provided with a second heating tube for heating.
5. The shielding oil evaporation device according to claim 1, characterized in that: The shielding oil evaporation device further comprises an oil vapor dispersion plate, and the oil vapor dispersion plate is arranged at a position of the evaporation channel close to the outlet.
6. The shielding oil evaporation device according to claim 1, characterized in that: The oil pool is in a trapezoidal structure that is narrow at the top and wide at the bottom.
7. A vacuum coating machine, characterized in that: The vacuum coating machine comprises: Unwinding device, used for unwinding dielectric film; The shielding oil evaporation device according to any one of claims 1 to 6, used for gasification of shielding oil; A coating cold drum device, wherein the coating cold drum device and the shielding oil evaporation device are arranged at intervals; An aluminum metal evaporation device, wherein the aluminum metal evaporation device is arranged adjacent to the coating cold drum device; A zinc metal evaporation device, wherein the zinc metal evaporation device is arranged adjacent to the coating cold drum device; Winding device, used for winding metallized film; There are multiple winding guide rollers, and the dielectric film passes through the shielding oil evaporation device, the coating cold drum device, the aluminum metal evaporation device and the zinc metal evaporation device in sequence under the traction of the unwinding device, the winding guide roller and the winding device to achieve evaporation and winding.