Mica tape gluing device with preheating function

Abstract

The present application relates to mica tape gluing technical field, specifically, it relates to a mica tape gluing device with preheating function, including platform and multiple heating devices, the top of platform is fixedly installed with conveying roller, glue roller, material roller, extrusion roller and winding roller, the outside of conveying roller is sleeved with mica body, the outside of material roller is sleeved with glass fiber cloth, mica body is arranged outside glue roller, extrusion roller and winding roller, multiple heating devices are arranged outside mica body, heating device includes two gas guide pipes located at the upper and lower ends of mica body respectively, one side of the two gas guide pipes is fixedly connected with connecting ring, through setting multiple groups of heating devices, the upper and lower synchronous preheating of mica body in progress is realized, heating machine cooperates with gas guide pipe to provide directional hot air, reduces the temperature difference between glue and mica body, also can dry mica body, gas guide pipe limits mica body through clamping groove, and the air outlet state is adjusted by threaded sleeve and exhaust pipe.

Description

Technical Field

[0001] This invention relates to the field of mica tape adhesive application technology, and more specifically, to a mica tape adhesive application device with a preheating function. Background Technology

[0002] Mica tape is a flexible fire-resistant insulating tape made of mica paper as the core, reinforced with glass cloth, film and other materials, and then compounded with high-temperature resistant resin, baked and slit. Mica tape ensures that electrical equipment and lines do not short-circuit or lose power in high-temperature or fire scenarios, and is a key material for power, transportation, new energy and safety engineering.

[0003] According to existing technology, the traditional mica tape gluing process involves installing rolls of mica tape and fiberglass cloth on feed rollers, and passively conveying the materials forward at a uniform speed using ordinary conveyor rollers. The mica tape is not preheated and enters the glue roller or glue tank area directly at room temperature. The surface is glued by simply dipping the mica tape in the glue tank or manually applying glue. Due to the lack of a dedicated preheating structure, the mica tape enters the gluing process directly at room temperature. The temperature difference between the mica tape and the glue is large, resulting in poor wetting and penetration of the glue on the mica surface, which easily leads to weak adhesion and delamination problems later on. Summary of the Invention

[0004] This invention provides a mica tape gluing device with a preheating function. It uses multiple heating devices to preheat the mica body simultaneously from top to bottom while it is in motion. The heating unit, together with the air duct, provides directional hot air, which reduces the temperature difference between the adhesive and the mica body and can also dry the mica body. The air duct limits the mica body through a slot, and the threaded sleeve and exhaust pipe adjust the air outlet state. This solves the problems mentioned in the background art, namely: due to the lack of a dedicated preheating structure, the mica tape directly enters the gluing process at room temperature, resulting in a large temperature difference between the mica tape and the adhesive, poor wetting and penetration of the adhesive on the mica surface, and easy problems such as weak adhesion and delamination in the later stage.

[0005] To achieve the above objectives, a mica tape gluing device with preheating function includes a platform and multiple heating devices. A conveying roller, a glue roller, a material roller, a squeeze roller, and a take-up roller are fixedly installed on the top of the platform. The conveying roller is covered with a mica body, and the material roller is covered with fiberglass cloth. The mica body is disposed outside the glue roller, squeeze roller, and take-up roller. The multiple heating devices are disposed outside the mica body. Each heating device includes two air guide pipes located at the upper and lower ends of the mica body, respectively. A connecting ring is fixedly connected to one side of each of the two air guide pipes. A heating element is fixedly installed inside the two connecting rings, and an electric heating wire is provided inside the heating element. The glue roller is provided with a smoothing device on its outside. The smoothing device includes two storage blocks that are fixedly connected to one side of the glue roller. The two storage blocks are slidably connected with a material collecting plate. The material collecting plate contains glue. When the glue inside the material collecting plate overflows, the overflowing glue adheres to the outside of the glue roller, thereby applying the glue to the mica body through the glue roller.

[0006] In the above technical solution, a slot is provided at the end of each of the two air guide pipes that are close to each other. The mica body slides with the air guide pipe through the slot. An air passage is provided inside the air guide pipe. A threaded sleeve is threadedly connected to the end of the two air guide pipes away from the heater. An exhaust pipe is rotatably connected to the outside of the threaded sleeve.

[0007] Secondly, two support frames are fixedly connected to the top of the platform, and a clamping ring is fixedly installed on the top of the support frame. Two air guide pipes are arranged inside the clamping ring and the support frame. A spring is fixedly connected inside the storage block and on one side of the collection plate. A threaded post is threadedly connected inside the storage block, and the threaded post is located on one side of the collection plate.

[0008] Furthermore, based on the above, a main pipe is provided on the top of the collecting plate, multiple spray pipes are fixedly connected to the bottom of the main pipe, multiple interfaces are fixedly connected to the top of the collecting plate, the spray pipes are embedded inside the interfaces, feeding pipes are fixedly connected to both sides of the main pipe, and two top frames are fixedly connected to the bottom of the main pipe, with the two top frames located directly above the collecting plate.

[0009] Meanwhile, a cleaning device is provided on the top of the platform. The cleaning device includes a collection box fixedly connected to the top of the platform. An inclined plate is fixedly connected to the top of the collection box. Two fixed brackets are fixedly connected to the side wall of the inclined plate. Brushes are fixedly connected to the outside of the fixed brackets. The two brushes are located at the upper and lower ends of the mica body, respectively. A through groove is opened inside the inclined plate. The mica body slides with the inclined plate through the through groove. When the mica body moves along the surface of the brush, the brush sweeps off the dust attached to the mica body. The swept-off dust falls into the collection box by gravity. Two side blocks are fixedly connected to the top of the collection box. The two side blocks are located on both sides of the mica body, respectively.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: In this mica tape gluing device with preheating function, multiple heating devices are set up to preheat the mica body simultaneously from top to bottom while it is moving. The heating machine, together with the air guide pipe, provides directional hot air to reduce the temperature difference between the glue and the mica body and can also dry the mica body. The air guide pipe limits the mica body through the slot, and the threaded sleeve and exhaust pipe adjust the air outlet state. The smoothing device on the outside of the glue roller can achieve adjustable gap with the help of the collection block, the material collection plate, the spring and the threaded column. The glue overflow through the material collection plate makes the glue evenly adhere to the glue roller and transfer to the mica body. The main pipe, spray pipe and feeding pipe realize automated continuous glue supply. The cleaning device cleans the surface impurities of the mica body with the upper and lower brushes. The impurities fall into the collection box through the inclined plate and are collected in a centralized manner to avoid impurities mixed with glue and affecting the bonding effect. The side block and the inclined plate through the groove limit the mica body. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the platform structure in this invention; Figure 3 This is a side view of the heating device in this invention. Figure 4 This is a side view of the adhesive roller structure in this invention; Figure 5 This is a side view of the smoothing device in this invention. Figure 6 This is an enlarged structural diagram of point A in this invention; Figure 7 This is a side view of the mica body in this invention. Figure 8 This is a side view of the cleaning device in this invention. Figure 9 This is an enlarged structural diagram of point B in the present invention.

[0012] The meanings of the labels in the diagram are as follows: 1. Platform; 2. Conveying roller; 3. Glue roller; 4. Material roller; 5. Extrusion roller; 6. Rewinding roller; 7. Heating device; 71. Air guide pipe; 72. Connecting ring; 73. Heater; 74. Slot; 75. Air passage; 76. Threaded sleeve; 77. Exhaust pipe; 78. Support frame; 79. Clamping ring; 8. Smoothing device; 81. Storage block; 82. Collecting plate; 83. Spring; 84. Threaded column; 85. Main pipe; 86. Spray pipe; 87. Interface; 88. Feeding pipe; 89. Top frame; 9. Cleaning device; 91. Collection box; 92. Inclined plate; 93. Fixing frame; 94. Brush; 95. Side block; 96. Through groove; 10. Mica body; 11. Fiberglass cloth. Detailed Implementation

[0013] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0014] Due to the lack of a dedicated preheating structure, the mica tape is directly applied to the adhesive process at room temperature. The temperature difference between the mica tape and the adhesive is large, resulting in poor wetting and penetration of the adhesive on the mica surface, which easily leads to weak adhesion and delamination problems later on.

[0015] Therefore, in view of the above-mentioned problems, the present invention provides a mica tape gluing device with a preheating function, referring to... Figure 1 - Figure 3 As shown, the system includes a platform 1 and multiple heating devices 7. The top of the platform 1 is fixedly installed with a conveying roller 2, an adhesive roller 3, a material roller 4, an extrusion roller 5, and a take-up roller 6. The conveying roller 2 is covered with a mica body 10, the material roller 4 is covered with a fiberglass cloth 11, the mica body 10 is located outside the adhesive roller 3, the extrusion roller 5, and the take-up roller 6, and the multiple heating devices 7 are located outside the mica body 10. The heating device 7 includes two air guide pipes 71 located at the upper and lower ends of the mica body 10, respectively. A connecting ring 72 is fixedly connected to one side of each of the two air guide pipes 71. A heating element 73 is fixedly installed inside the two connecting rings 72. The heating element 73 is equipped with an electric heating wire. By relying on the combination structure of the symmetrically arranged air guide pipes 71 and the heating element 73, the mica body 10 is preheated in a wrapping manner during the process. This can uniformly heat the mica body, reduce the temperature difference between the mica body and the subsequent adhesive, and improve the wetting and penetration effect of the adhesive on the surface of the mica body 10. The symmetrical air supply structure ensures that the mica body 10 is heated evenly, avoiding the deformation of the mica body due to excessive temperature difference on one side. This is suitable for long-term continuous adhesive application production.

[0016] refer to Figure 3As shown, each of the two air guide pipes 71 has a slot 74 at one end close to the other. The mica body 10 slides and engages with the air guide pipe 71 through the slot 74 to limit and guide the mica body 10 in motion, preventing deviation during material conveying. At the same time, the air passage 75 inside the air guide pipe 71 can guide the flow of hot air, so that the heat acts directionally on the surface of the mica body 10 along the air passage 75, improving the utilization rate of hot air flow. The air passage 75 is opened inside the air guide pipe 71. The ends of the two air guide pipes 71 away from the heater 73 are threadedly connected to the threaded sleeve 76. The outside of the threaded sleeve 76 is rotatably connected to the exhaust pipe 77. Two support frames 78 are fixedly connected to the top of the platform 1. A clamping ring 79 is fixedly installed on the top of the support frame 78. The two air guide pipes 71 are set inside the clamping ring 79 and the support frame 78 to support the air guide pipes 71 and prevent the pipes from shifting or loosening due to vibration caused by long-term operation of the equipment.

[0017] refer to Figure 4 - Figure 6 As shown, the glue roller 3 is provided with a smoothing device 8 on its outside. The smoothing device 8 includes two storage blocks 81 that are fixedly connected to one side of the glue roller 3. The two storage blocks 81 are slidably connected to a collecting plate 82. The collecting plate 82 contains glue. During operation, the glue in the collecting plate 82 overflows and adheres to the surface of the glue roller 3. Then, the glue roller 3 evenly spreads the glue onto the surface of the mica body 10. By sliding the storage blocks 81 and the collecting plate 82, the position of the collecting plate 82 can be flexibly adjusted to control the degree of glue overflow and stably maintain the amount of glue on the surface of the glue roller 3.

[0018] refer to Figure 5 and Figure 6 As shown, a spring 83 is fixedly connected inside the receiving block 81 and on one side of the collecting plate 82. A threaded post 84 is threaded inside the receiving block 81. The threaded post 84 is located on one side of the collecting plate 82. Rotating the threaded post 84 pushes the collecting plate 82 to slide along the inside of the receiving block 81 in cooperation with the spring 83. This can adjust the gap between the collecting plate 82 and the glue roller 3, control the amount of glue overflow, and adapt to the glue coating thickness requirements of different specifications of mica body 10. At the same time, the spring 83 buffers the vibration during the operation of the equipment and avoids uneven glue overflow caused by the displacement of the collecting plate 82. The top of the collecting plate 82 is provided with a main pipe 85, and the bottom of the main pipe 85 is fixedly connected with multiple spray pipes 86. The top of the collecting plate 82 is fixedly connected with multiple interfaces 87, and the spray pipes 86 are embedded inside the interfaces 87. Both sides of the main pipe 85 are fixedly connected with feeding pipes 88. The feeding pipes 88 connected to both sides of the main pipe 85 can concentrate the glue injection and evenly deliver glue in conjunction with the spray pipes 86. The bottom of the main pipe 85 is fixedly connected with two top brackets 89. The two top brackets 89 are located directly above the collecting plate 82 and play a role in providing stable support for the main pipe 85 and the spray pipes 86.

[0019] refer to Figure 7 - Figure 9 As shown, a cleaning device 9 is provided on the top of the platform 1. The cleaning device 9 includes a collection box 91 fixedly connected to the top of the platform 1. An inclined plate 92 is fixedly connected to the top of the collection box 91. Two fixing brackets 93 are fixedly connected to the side wall of the inclined plate 92. Brushes 94 are fixedly connected to the outside of the fixing brackets 93. The two brushes 94 are located at the upper and lower ends of the mica body 10, respectively. A through groove 96 is opened inside the inclined plate 92. The mica body 10 slides and engages with the inclined plate 92 through the through groove 96. The inclined plate 92 is equipped with two sets of brushes 94 through the fixing brackets 93, so that the brushes 94 are respectively attached to the upper and lower surfaces of the mica body 10. The mica body 10 passes through the through groove 96 of the inclined plate 92. During the movement of the mica body 10, the brush 94 cleans the dust and fine debris attached to its surface. The cleaned-off impurities fall into the collection box 91 by gravity through the inclined plate 92, thus achieving centralized collection and preventing impurities from remaining on the surface of the mica body 10 and being carried into the gluing process. This prevents the adhesive layer from being mixed with foreign objects, which could cause bulging and reduced insulation performance. The top of the collection box 91 is fixedly connected to two side blocks 95, which are located on both sides of the mica body 10, to laterally limit the material's movement path and prevent the mica body 10 from deviating to the left or right during the conveying process.

[0020] Working principle of the invention: During operation, the mica body 10 roll is placed outside the conveying roller 2, and the fiberglass cloth 11 roll is installed outside the material roller 4. The mica body 10 is wound around the glue roller 3 and the extrusion roller 5 in sequence and then wound onto the take-up roller 6. The coordinated operation of each roller drives the mica body 10 and the fiberglass cloth 11 to be conveyed forward synchronously and at a uniform speed.

[0021] During the material's movement, multiple heating devices 7 operate simultaneously. The heating wire inside the heater 73 generates a heat source, and hot air is introduced into the air guide pipe 71. The mica body 10 slides through the slots 74 at opposite ends of the two air guide pipes 71. The upper and lower air guide pipes 71 simultaneously preheat the mica body 10 with enveloping hot air. The two air guide pipes 71 can rotate, thereby flexibly adjusting the opening angle of the slots 74 to adapt to different conveying angles of the mica body 10. The air passages 75 inside the air guide pipe 71 guide the flow of hot air. While heating the mica body 10, the hot air also blows away the tiny dust and impurities attached to its surface. This hot air carrying dust is then discharged through the exhaust pipe 77. The operator can adjust the direction of the exhaust by rotating the threaded sleeve 76 to fix the exhaust pipe 77. The support frame 78, together with the clamping ring 79, clamps and fixes the air guide pipe 71 to prevent the pipeline from shifting due to equipment vibration.

[0022] Simultaneously, the smoothing device 8 operates, delivering glue into the main pipe 85 through the feeding pipe 88. The glue is then introduced into the collection plate 82 for storage through various spray nozzles 86. The rotating threaded column 84 pushes the collection plate 82 to slide within the receiving block 81. With the help of the elastic buffering and reset action of the spring 83, the gap between the collection plate 82 and the glue roller 3 is adjusted to control the glue overflow flow. The glue in the collection plate 82 naturally overflows and evenly adheres to the surface of the glue roller 3. As the glue roller 3 rotates, the glue is evenly coated onto the preheated mica body 10 surface. The top frame 89 provides support and limits for the main pipe 85 and the spray nozzles 86.

[0023] Before the gluing process, the mica body 10 passes through the through slot 96 of the inclined plate 92 in the cleaning device 9. The upper and lower sets of brushes 94 are respectively attached to the surface of the mica body 10. The brushes 94 clean and peel off the dust and debris attached to the surface of the mica body 10. The impurities fall into the collection box 91 by gravity along the inclined plate 92 and are collected. The side block 95 at the top of the collection box 91 limits the mica body 10 to the left and right to prevent the material from deviating during the conveying process.

[0024] After the fiberglass cloth 11 is drawn out from the material roller 4, it enters the extrusion roller 5 together with the mica body 10 after being coated with glue by the glue roller 3. Through the pressing action of the extrusion roller 5, the fiberglass cloth 11 and the mica body 10 are bonded together to form a mica tape semi-finished product, which is finally wound up by the winding roller 6.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mica tape gluing device with preheating function, comprising a platform (1) and multiple heating devices (7), characterized in that: The top of the platform (1) is fixedly installed with a conveying roller (2), a glue roller (3), a material roller (4), a squeezing roller (5), and a take-up roller (6). The conveying roller (2) is covered with a mica body (10), and the material roller (4) is covered with a fiberglass cloth (11). The mica body (10) is located outside the glue roller (3), the squeezing roller (5), and the take-up roller (6). Multiple heating devices (7) are located outside the mica body (10). Each heating device (7) includes two air guide pipes (71) located at the upper and lower ends of the mica body (10). A connecting ring (72) is fixedly connected to one side of each of the two air guide pipes (71). A heating machine (73) is fixedly installed inside each of the two connecting rings (72). The heating machine (73) is equipped with an electric heating wire inside. The glue roller (3) is provided with a smoothing device (8) on the outside. The smoothing device (8) includes two storage blocks (81) fixedly connected to one side of the glue roller (3). The two storage blocks (81) are slidably connected with a material collection plate (82). The material collection plate (82) is filled with glue. When the glue inside the material collection plate (82) overflows, the overflowing glue adheres to the outside of the glue roller (3), thereby applying the glue to the mica body (10) through the glue roller (3).

2. The mica tape gluing device with preheating function according to claim 1, characterized in that: The two air guide tubes (71) are provided with a slot (74) at one end close to each other. The mica body (10) slides with the air guide tube (71) through the slot (74). An air passage (75) is provided inside the air guide tube (71).

3. The mica tape gluing device with preheating function according to claim 1, characterized in that: The two air ducts (71) are threaded to the ends away from the heater (73) with threaded sleeves (76), and an exhaust pipe (77) is rotatably connected to the outside of the threaded sleeves (76).

4. The mica tape gluing device with preheating function according to claim 1, characterized in that: The top of the platform (1) is fixedly connected to two support frames (78), and the top of the support frame (78) is fixedly installed with a clamp (79). The two air guide pipes (71) are arranged inside the clamp (79) and the support frame (78).

5. The mica tape gluing device with preheating function according to claim 1, characterized in that: A spring (83) is fixedly connected inside the storage block (81) and on one side of the collection plate (82). A threaded post (84) is threaded inside the storage block (81) and is located on one side of the collection plate (82).

6. The mica tape gluing device with preheating function according to claim 1, characterized in that: The top of the collecting plate (82) is provided with a main pipe (85), and the bottom of the main pipe (85) is fixedly connected with multiple nozzles (86). The top of the collecting plate (82) is fixedly connected with multiple interfaces (87), and the nozzles (86) are embedded inside the interfaces (87).

7. The mica tape gluing device with preheating function according to claim 6, characterized in that: Feeding pipes (88) are fixedly connected to both sides of the main pipe (85), and two top frames (89) are fixedly connected to the bottom of the main pipe (85). The two top frames (89) are located directly above the collecting plate (82).

8. The mica tape gluing device with preheating function according to claim 1, characterized in that: The platform (1) is provided with a cleaning device (9) at the top. The cleaning device (9) includes a collection box (91) fixedly connected to the top of the platform (1). An inclined plate (92) is fixedly connected to the top of the collection box (91). Two fixing brackets (93) are fixedly connected to the side wall of the inclined plate (92). A brush (94) is fixedly connected to the outside of the fixing bracket (93). The two brushes (94) are located at the upper and lower ends of the mica body (10) respectively.

9. The mica tape gluing device with preheating function according to claim 8, characterized in that: The inclined plate (92) has a through groove (96) inside. The mica body (10) slides and engages with the inclined plate (92) through the through groove (96). When the mica body (10) moves along the surface of the brush (94), the brush (94) sweeps off the dust attached to the mica body (10). The swept-off dust falls into the collection box (91) by gravity.

10. The mica tape gluing device with preheating function according to claim 8, characterized in that: The top of the collection box (91) is fixedly connected to two side blocks (95), which are located on both sides of the mica body (10).

Images