Double-silicon release paper coating device

Abstract

The utility model discloses a double-silicon release paper coating device which comprises a machine frame and a machine shell fixedly installed on the top of the machine frame, and a coating device body for coating the upper surface of double-silicon release paper is installed in the machine shell. The drying mechanism is matched with the two sets of ultraviolet irradiation lamps, three sets of induced draft fans in the drying mechanism can extract air into an air pipe, dust in the air is filtered through a filter screen, the dust and impurities in the air are effectively removed, the cleanliness of the dried air is guaranteed, pollution of the dust to a coating layer is avoided, and the service life of the coating layer is prolonged. The multiple sets of heating wires are matched to heat air entering the air pipe, the heated air is discharged through the air outlet shell to dry the coated release paper, most of water can be rapidly removed, the production efficiency is improved, the two sets of ultraviolet irradiation lamps are matched to irradiate and cure the coated release paper, and the production efficiency is improved. The stability of a cross-linked structure in the coating layer can be ensured, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of dual-silicone release paper production and processing technology, specifically a dual-silicone release paper coating device. Background Technology

[0002] Release paper is a type of anti-stick paper used to prevent prepreg from sticking together and to protect it from contamination. Release paper is made of paper coated with an anti-sticking substance, and its grades vary depending on the material, thickness, elongation, and whether it is single-sided or double-sided. The production process of double-sided silicone release paper is relatively complex, mainly involving two steps: coating and silicone coating. First, a thin layer of PE film is coated onto the surface of ordinary roll paper to form a coating layer. Then, a layer of silicone is coated onto the coating layer to form a silicone oil layer. Depending on the treatment of the two sides, it can be divided into single-sided coating and double-sided coating, i.e., single-sided coated paper and double-sided coated paper, also known as single-plastic release paper and double-plastic release paper. Double-sided silicone release paper has a certain thickness of PE film coated on both sides of the paper, and a layer of silicone is coated on both sides. The production process of double-sided silicone release paper requires the use of a coating device.

[0003] For example, a yellow silicone release paper coating equipment (Announcement No.: CN215235535U) includes a frame and a housing. The housing is mounted on the upper surface of the frame, and a drying frame is fixedly connected to the upper surface of the frame. The drying frame is located on one side of the discharge end of the housing. An electric heating box is inserted into the upper surface of the drying frame. A guiding component is installed inside the drying frame, and a monitoring component is installed at one end of the frame. This design changes the structure of traditional coating machines by installing the drying frame outside the housing. When the electric heating box in the drying frame dries the coated yellow silicone release paper, it can maintain its own heat free dissipation, reducing heat accumulation and thus improving safety. The guiding component divides and guides the hot air, improving the uniformity of heating of the yellow silicone release paper. The monitoring component monitors the working area inside the drying frame in real time, records the working process, and promptly detects and handles fires.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, it is known that the aforementioned equipment relies solely on electric heating boxes to generate hot air for drying the coated release paper. While this may result in high drying efficiency, the cross-linking structure within the coating layer may not be stable enough. The cross-linking structure is one of the key indicators of the coating layer's performance, determining its hardness, abrasion resistance, chemical resistance, and other properties. If the temperature is not properly controlled or the drying time is insufficient, the cross-linking reaction may be incomplete, thus affecting the durability and performance of the final product. Therefore, we need to propose a dual-silicone release paper coating device. Utility Model Content

[0005] The purpose of this invention is to provide a dual-silicone release paper coating device. By combining a drying mechanism with two sets of ultraviolet lamps, the drying mechanism can quickly remove most of the moisture, thereby improving production efficiency; while ultraviolet curing can ensure the stability of the cross-linking structure inside the coating layer, thereby improving product quality, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dual-silicone release paper coating apparatus includes a frame and a housing fixedly installed on the top of the frame. The housing is equipped with a coating device for coating the upper surface of the dual-silicone release paper.

[0008] The frame is fixedly installed with a drying box on one side of the machine housing. The drying box is equipped with a drying mechanism for drying the coated double-silicone release paper. Two sets of ultraviolet irradiation lamps for auxiliary curing of the coated double-silicone release paper are symmetrically installed on one side of the drying mechanism.

[0009] One end of the frame is equipped with a conveying mechanism for guiding the coated silicone release paper.

[0010] Preferably, the drying mechanism includes an air duct, which is fixedly embedded in the top of the drying chamber. The bottom of the air duct passes through the drying chamber and is fixedly connected to an air outlet shell. Three sets of exhaust fans are fixedly installed inside the air duct by a bracket. A filter screen for filtering dust in the air is detachably inserted into one side of the exhaust fan.

[0011] Preferably, a number of heating wires are fixedly installed on the inner wall of the air duct, and the number of heating wires are located below one side of the three sets of induced draft fans.

[0012] Preferably, the top of the duct has an insertion groove extending into the interior of the duct, and the filter screen is inserted into the insertion groove.

[0013] Preferably, the guiding mechanism includes two sets of fixed plates, which are symmetrically fixedly installed at one end of the frame. A lower guide roller is rotatably installed between the two sets of fixed plates. A pressure plate is installed above the lower guide roller. The pressure plate is slidably installed on the two sets of fixed plates. An upper guide roller is rotatably installed at the bottom of the pressure plate through two sets of brackets.

[0014] Preferably, the fixing plate has a sliding groove, and a fixing rod is fixedly installed inside the sliding groove. The outer wall of the fixing rod is slidably installed inside one end of the pressure plate, and a spring is sleeved on the outer wall of the fixing rod. The top of the spring is fixedly connected to the inner top of the sliding groove, and the bottom of the spring is fixedly connected to the top of the pressure plate.

[0015] Preferably, a baffle plate is fixedly installed at the upper part of the inner opening on one side of the drying oven, and the baffle plate is located on one side of the ultraviolet irradiation lamp.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention utilizes a drying mechanism in conjunction with two sets of ultraviolet lamps. Three sets of fans within the drying mechanism draw air into the duct, where filters effectively remove dust and impurities, ensuring the cleanliness of the drying air and preventing dust contamination of the coating layer. Several sets of heating wires heat the air entering the duct, and the heated air exits through the exhaust shell to dry the coated release paper, rapidly removing most of the moisture and improving production efficiency. The two sets of ultraviolet lamps irradiate and cure the coated release paper, ensuring a stable cross-linked structure within the coating layer and improving product quality. Attached Figure Description

[0018] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the drying oven of this utility model;

[0020] Figure 3 This is a schematic diagram of the drying mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the guiding mechanism of this utility model.

[0022] In the diagram: 1. Frame; 2. Housing; 3. Drying oven; 4. Drying mechanism; 41. Air duct; 42. Air outlet shell; 43. Exhaust fan; 44. Filter screen; 45. Heating wire; 5. Ultraviolet lamp; 6. Baffle plate; 7. Conveying mechanism; 71. Fixing plate; 72. Lower guide roller; 73. Pressure plate; 74. Upper guide roller; 75. Sliding groove; 76. Fixing rod; 77. Spring. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A dual-silicone release paper coating apparatus includes a frame 1 and a housing 2 fixedly installed on the top of the frame 1. A coating device for coating the upper surface of the dual-silicone release paper is installed inside the housing 2.

[0026] A drying chamber 3 is fixedly installed on one side of the frame 1 and the casing 2. The drying chamber 3 is equipped with a drying mechanism 4 for drying the coated double-silicone release paper. Two sets of ultraviolet irradiation lamps 5 for auxiliary curing of the coated double-silicone release paper are symmetrically installed on one side of the drying mechanism 4.

[0027] A guide mechanism 7 is installed at one end of the frame 1 to guide the coated double-silicone release paper.

[0028] Furthermore, the drying mechanism 4 includes an air duct 41, which is fixedly embedded in the top of the drying chamber 3. The bottom of the air duct 41 passes through the drying chamber 3 and is fixedly connected to an air outlet shell 42. Three sets of exhaust fans 43 are fixedly installed inside the air duct 41 by a bracket. A filter screen 44 for filtering dust in the air is detachably inserted into one side of the exhaust fan 43, so that air can be drawn into the air duct 41 by the three sets of exhaust fans 43. The filter screen 44 filters the dust in the air to avoid dust contamination of the coating layer. Through air filtration, rework and scrap rates caused by coating quality problems can be reduced, thereby improving production efficiency. The air is discharged through the air outlet shell 42 to dry the coated release paper.

[0029] Furthermore, several sets of heating wires 45 are fixedly installed on the inner wall of the air duct 41. The sets of heating wires 45 are located below one side of the three sets of induced draft fans 43, so that the air entering the air duct 41 can be heated by the cooperation of the sets of heating wires 45.

[0030] Furthermore, the top of the duct 41 is provided with an insertion groove extending into the interior of the duct 41, and the filter screen 44 is inserted into the interior of the insertion groove, which facilitates the disassembly and replacement of the filter screen 44.

[0031] Furthermore, the guiding mechanism 7 includes two sets of fixed plates 71, which are symmetrically fixed at one end of the frame 1. A lower guide roller 72 is rotatably mounted between the two sets of fixed plates 71. A pressure plate 73 is mounted above the lower guide roller 72. The pressure plate 73 is slidably mounted on the two sets of fixed plates 71. An upper guide roller 74 is rotatably mounted at the bottom of the pressure plate 73 through two sets of brackets, so as to facilitate the guiding of the coated and dried release paper by the cooperation of the lower guide roller 72 and the upper guide roller 74.

[0032] Furthermore, a sliding groove 75 is provided on the fixed plate 71, and a fixed rod 76 is fixedly installed inside the sliding groove 75. The outer wall of the fixed rod 76 is slidably installed inside one end of the pressure plate 73, and a spring 77 is sleeved on the outer wall of the fixed rod 76. The top of the spring 77 is fixedly connected to the inner top of the sliding groove 75, and the bottom of the spring 77 is fixedly connected to the top of the pressure plate 73. This facilitates the use of the spring 77 and the fixed rod 76 in the two sets of sliding grooves 75 to press down the upper guide roller 74 at the bottom of the pressure plate 73 to cooperate with the lower guide roller 72, so that the upper guide roller 74 can exert a certain tension on the release paper.

[0033] Furthermore, a baffle plate 6 is fixedly installed at the upper part of the opening on one side of the drying oven 3. The baffle plate 6 is located on one side of the ultraviolet lamp 5. The baffle plate 6 provides protection against the light from the ultraviolet lamp 5, preventing the ultraviolet light from directly shining on the operator or areas that do not need to be irradiated.

[0034] Working principle: In use, this utility model coats the release paper using an internal coating device (the coating device is based on existing technology and will not be described in detail here). Air is drawn into the air duct 41 by three sets of induced draft fans 43 in the drying mechanism 4. The filter screen 44 filters the dust in the air to prevent dust from contaminating the coating layer. Several sets of heating wires 45 work together to heat the air entering the air duct 41. After heating, the air is discharged through the air outlet shell 42 to dry the coated release paper, which can quickly remove most of the moisture and improve production efficiency. Two sets of ultraviolet lamps 5 work together to irradiate and cure the coated release paper, which can ensure the stability of the cross-linking structure inside the coating layer and improve product quality.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-silicone release paper coating apparatus, characterized in that, include: A frame (1) and a housing (2) fixedly installed on the top of the frame (1), wherein a coating device for coating the upper surface of the double-silicone release paper is installed inside the housing (2); The frame (1) is fixedly installed with a drying box (3) on one side of the casing (2). The drying box (3) is equipped with a drying mechanism (4) for drying the coated double-silicone release paper. Two sets of ultraviolet irradiation lamps (5) for auxiliary curing of the coated double-silicone release paper are symmetrically installed on one side of the drying mechanism (4). One end of the frame (1) is equipped with a guiding mechanism (7) for guiding the coated double-silicone release paper.

2. The dual-silicone release paper coating apparatus according to claim 1, characterized in that: The drying mechanism (4) includes an air duct (41), which is fixedly embedded in the top of the drying box (3). The bottom of the air duct (41) passes through the drying box (3) and is fixedly connected to an air outlet shell (42). Three sets of exhaust fans (43) are fixedly installed inside the air duct (41) by a bracket. A filter screen (44) for filtering dust in the air is detachably inserted into one side of the exhaust fan (43).

3. The dual-silicone release paper coating apparatus according to claim 2, characterized in that: Several sets of heating wires (45) are fixedly installed on the inner wall of the air duct (41), and the several sets of heating wires (45) are located below one side of the three sets of induced draft fans (43).

4. The dual-silicone release paper coating apparatus according to claim 3, characterized in that: The top of the air duct (41) is provided with an insertion groove extending into the interior of the air duct (41), and the filter (44) is inserted into the interior of the insertion groove.

5. The dual-silicone release paper coating apparatus according to claim 1, characterized in that: The guiding mechanism (7) includes two sets of fixed plates (71). The two sets of fixed plates (71) are symmetrically fixed at one end of the frame (1). A lower guide roller (72) is rotatably installed between the two sets of fixed plates (71). A pressure plate (73) is installed above the lower guide roller (72). The pressure plate (73) is slidably installed on the two sets of fixed plates (71). An upper guide roller (74) is rotatably installed at the bottom of the pressure plate (73) through two sets of brackets.

6. The dual-silicone release paper coating apparatus according to claim 5, characterized in that: The fixed plate (71) has a sliding groove (75), and a fixed rod (76) is fixedly installed inside the sliding groove (75). The outer wall of the fixed rod (76) is slidably installed inside one end of the pressure plate (73), and a spring (77) is sleeved on the outer wall of the fixed rod (76). The top of the spring (77) is fixedly connected to the inner top of the sliding groove (75), and the bottom of the spring (77) is fixedly connected to the top of the pressure plate (73).

7. The dual-silicone release paper coating apparatus according to claim 1, characterized in that: A baffle plate (6) is fixedly installed at the upper end of the opening on one side of the drying oven (3), and the baffle plate (6) is located on one side of the ultraviolet lamp (5).

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