An insulating tape production line

Abstract

This utility model discloses an insulating tape production line, comprising a mixer, a two-roll mill, a four-roll mill, a coating machine, and a winding machine arranged sequentially. The mixer is used to mix and disperse the raw materials, fillers, and minor ingredients of the insulating tape to form a substrate. The two-roll mill is used to process the substrate into tape sheets. The four-roll mill is used to further process the tape sheets to control the width and thickness of the tape. The coating machine is used to coat the tape with adhesive and / or coating. The winding machine is used to wind up the tape after coating with adhesive and / or coating. The coating machine includes a coating roller group and a traction roller. The coating roller group is used to coat the insulating tape with adhesive. Along the conveying direction of the tape, the traction roller is located behind the coating roller group. In the vertical direction, the traction roller is higher than the coating roller group. This insulating tape production line, by improving the conventional two-roll coating machine and the front and rear production lines, achieves low-cost and high-efficiency coating of soft tape with a thickness of less than 2mm.

Description

Technical Field

[0001] This utility model relates to the technical field of insulating tape production equipment, and in particular to an insulating tape production line. Background Technology

[0002] In the industrial production process of flexible adhesive tapes, the adhesive coating process is a core step, and its quality and efficiency directly determine product performance and market competitiveness. Currently, the industry commonly uses coating machines to coat adhesives or functional coatings onto the substrate surface. Although such equipment enables continuous production, it faces significant cost barriers, with high purchase costs per unit. For small and medium-sized manufacturing enterprises, the initial investment in equipment creates a heavy financial burden, hindering the industry's widespread development.

[0003] Conventional two-roller glue applicators, as a low-cost and high-efficiency glue applicator, are widely used in glue application operations in fields such as sheet materials and plastic parts. However, they have strict limitations on the thickness of the object being coated and cannot be adapted to soft tapes with a thickness of less than 2mm. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an insulating tape production line, which, by improving the conventional two-roller coating machine and the front and rear production lines, achieves low-cost and high-efficiency coating of soft tape with a thickness of less than 2mm.

[0005] An insulating tape production line according to an embodiment of the present invention includes, in sequence, a mixer, a two-roll mill, a four-roll mill, a glue coater, and a winding machine. The internal mixer is used to mix and disperse the raw materials, fillers, and minor ingredients of the insulating tape to form a base material; The open mill is used to process the substrate into tape sheets; The four-roller machine is used to further process the tape sheet in order to control the width and thickness of the tape; The glue applicator is used to apply glue and / or coating to the tape; The winding machine is used to wind up tape coated with adhesive and / or paint; The glue applicator includes: Base frame; A glue-applying roller assembly includes a glue roller and a smooth roller, both of which are rotatably mounted on the base frame about their own axes. The glue roller is connected to a first transmission structure that drives its rotation. A glue tank assembly is disposed above the glue application roller assembly and is used to supply glue to the glue application roller assembly; A traction roller is rotatably mounted on the base frame about its own axis and is connected to a second transmission structure that drives its rotation. Along the conveying direction of the strip, the traction roller is positioned behind the glue-applying roller group, and the rotational speed of the traction roller is the same as that of the glue roller; in the vertical direction, the traction roller is higher than the glue-applying roller group.

[0006] The insulating tape production line according to the embodiments of this utility model has at least the following beneficial effects: By improving a conventional two-roller coating machine and adapting the front and rear equipment, low-cost and high-efficiency coating of soft tapes with a thickness of less than 2mm is achieved. The coating machine uses a traction roller installed behind the coating roller assembly. The traction roller can rotate around its own axis, and the rotation speed of the traction roller is the same as that of the glue roller. This provides the moving power to tension the tape and prevent glue accumulation on the tape. The height of the traction roller is greater than the height of the coating roller assembly, which allows the tape to adhere tightly to the coating roller assembly, thus enabling the coating of thin-walled products with a thickness of less than 2mm. The coating of thin-walled products with a thickness of less than 2mm can be achieved by simply adding a traction roller to an existing two-roller coating machine. The modification cost is low, which can effectively reduce the initial equipment investment cost.

[0007] According to some embodiments of the present invention, a drying air duct is provided between the glue applicator and the winding machine, and the drying air duct is used to dry the glue and / or coating on the tape.

[0008] According to some embodiments of the present invention, the drying temperature in the drying duct is set to 170°C to 190°C.

[0009] According to some embodiments of the present invention, the temperature of the sheet tape output from the open mill is 130°C to 150°C, and the temperature of the sheet tape output from the four-roll mill is 110°C to 120°C.

[0010] According to some embodiments of this utility model, when mixing materials in the internal mixer, the raw materials and fillers of the insulating adhesive are first internally mixed at 175°C for 10 minutes, and then the small materials are added and the mixing continues for another 10 minutes.

[0011] According to some embodiments of the present invention, the base frame is provided with a strip-shaped hole, the optical roller is installed in the strip-shaped hole and connected to a first adjustment component, the first adjustment component drives the optical roller to slide along the strip-shaped hole to adjust the distance between the optical roller and the rubber roller.

[0012] According to some embodiments of the present invention, the first adjusting component includes an adjusting rod and a first adjusting wheel. The adjusting rod is rotatably mounted on the optical roller about its own axis, and the first adjusting wheel is throttle-connected to the adjusting rod. The first adjusting wheel rotates, causing the adjusting rod to slide horizontally, which in turn causes the optical roller to slide along the strip hole.

[0013] According to some embodiments of the present invention, the glue tank assembly includes two opposing groove plates, and a V-shaped groove for containing glue is formed between the two groove plates, and the bottom of the V-shaped groove is provided with an opening.

[0014] According to some embodiments of the present invention, each of the two groove plates is provided with an extension rod on its opposite side, and the extension rod is provided with a central shaft, and the central shaft is connected to the extension rod in a driving manner. The central shaft is rotatably mounted on the base frame around its own axis. The rotation of the central shaft can drive the two slot plates to move relative to each other to adjust the size of the opening.

[0015] According to some embodiments of the present invention, the base frame is equipped with a glue collection trough and a driving device. The glue collection trough is located below the glue coating roller group, and the output end of the driving device is connected to the first transmission structure and the second transmission structure.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of an embodiment of this application; Figure 2 for Figure 1 Axonal view of the intermediate coating machine; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Front view of the intermediate coating machine; Figure 5 for Figure 4 Sectional view along the BB direction; Figure 6 for Figure 5 A magnified view of point C in the middle.

[0018] Icon labels: 1000 internal mixers; 2000 open mill; 3000 four-roll mill; The following components are included: a glue applicator 4000, a base frame 4100, a first support structure 4110, a scale 4120, a second support structure 4130, a rack 4140, an elastic element 4141, a glue collection tank 4150, a discharge pipe 4151, a locking valve 4152, a drive device 4160, a third support structure 4170, a glue applicator roller group 4200, a glue roller 4210, a first transmission structure 4211, a smooth roller 4220, a connecting piece 4221, a first adjusting assembly 4230, an adjusting rod 4231, a first adjusting wheel 4232, a glue tank assembly 4300, a tank plate 4310, an extension rod 4320, a central shaft 4330, a second adjusting wheel 4331, a traction roller 4400, and a second transmission structure 4410. Drying air duct 5000; 6000 winding machine. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 6This application discloses an insulating tape production line, comprising a mixer 1000, a two-roll mill 2000, a four-roll mill, a coating machine 4000, and a winding machine 6000 arranged sequentially. The mixer 1000 is used to mix and disperse the raw materials, fillers, and minor ingredients of the insulating tape to form a substrate. The two-roll mill 2000 is used to process the substrate into tape sheets. The four-roll mill is used to further process the tape sheets to control the width and thickness of the tape. The coating machine 4000 is used to coat the tape with adhesive and / or coating. The winding machine 6000 is used to wind up the tape after coating with adhesive and / or coating.

[0024] Specifically, when mixing materials in a 1000 internal mixer, the raw materials and fillers for the insulating adhesive are first mixed at 175°C for 10 minutes, and then the smaller materials are added and mixed for another 10 minutes. The temperature of the tape sheet output from a 2000 open mill is 130°C to 150°C, and the temperature of the tape output from a 3000 four-roll mill is 110°C to 120°C. The coating speed of a 4000 glue applicator is usually set to 10 m / min.

[0025] To prevent the performance of the insulating tape from being affected by the adhesive not drying before winding, the insulating tape production line in this embodiment also includes a drying duct 5000. The drying duct 5000 is located between the glue applicator 4000 and the winding machine 6000. The drying duct 5000 is used to dry the adhesive and / or coating on the tape. The drying temperature in the drying duct 5000 is set to 170°C to 190°C, usually around 180°C.

[0026] In the embodiments of this application, reference is made to Figure 2 As shown, the glue applicator 4000 includes a base frame 4100, a glue applicator roller assembly 4200, a glue tank assembly 4300, and a traction roller 4400. The glue applicator roller assembly 4200, the glue tank assembly 4300, and the traction roller 4400 are all mounted on the base frame 4100. Along the conveying direction of the strip, the traction roller 4400 is positioned behind the glue applicator roller assembly 4200, and the glue tank assembly 4300 is positioned above the glue applicator roller assembly 4200. The glue tank assembly 4300 is used to provide glue to the glue applicator roller assembly 4200, the glue applicator roller assembly 4200 is used to apply glue to the strip, and the traction roller 4400 is used to improve the applicability of the glue applicator roller assembly 4200 and the uniformity of glue application to the strip.

[0027] Reference Figure 1As shown, the coating roller assembly 4200 includes a coating roller 4210 and a smooth roller 4220. Both the coating roller 4210 and the smooth roller 4220 are rotatably mounted on the base frame 4100 around their own axes. The coating roller 4210 is connected to a first transmission structure 4211 that drives its rotation, and the traction roller 4400 is connected to a second transmission structure 4410 that drives its rotation. The rotational speed of the coating roller 4210 is the same as that of the traction roller 4400, and in the vertical direction, the traction roller 4400 is higher than the coating roller assembly 4200. By installing a traction roller 4400 behind the coating roller assembly 4200, the traction roller 4400 can rotate around its own axis, and the rotation speed of the traction roller 4400 is the same as that of the glue roller 4210. This provides the moving power to tension the strip and prevents glue accumulation on the strip. The height of the traction roller 4400 is greater than the height of the coating roller assembly 4200, which allows the strip to adhere tightly to the coating roller assembly 4200, thereby enabling the coating of thin-walled products with a thickness of less than 2mm. The coating of thin-walled products with a thickness of less than 2mm can be achieved by adding the traction roller 4400 to the existing double-roller glue coater 4000. The modification cost is low, which can effectively reduce the initial equipment investment cost. By improving the conventional double-roller glue coater 4000 and adapting the front and rear equipment, the coating of soft tape with a thickness of less than 2mm is achieved at low cost and high efficiency.

[0028] In the embodiments of this application, in order to ensure that the rotational speed of the glue roller 4210 is equal to that of the traction roller 4400, and to effectively reduce the manufacturing cost of the glue applicator 4000, refer to Figure 1 As shown, the glue applicator 4000 in this embodiment is equipped with only one drive unit 4160, which is installed below the glue applicator roller group 4200. The output end of the drive unit 4160 is simultaneously connected to the first transmission structure 4211 and the second transmission structure 4410, thereby ensuring that the glue roller 4210 and the traction roller 4400 rotate at the same speed. The drive unit 4160 is preferably an electric motor, and the first transmission structure 4211 and the second transmission structure 4410 can be structures such as belts and chains.

[0029] In the embodiments of this application, the distance between the glue roller 4210 and the smooth roller 4220 of the glue application roller assembly 4200 is adjustable, thereby adapting to different types and viscosities of adhesives. Since the glue roller 4210 is connected to the first transmission structure 4211, adjusting the position of the glue roller 4210 requires simultaneous adjustment of the first transmission structure 4211, resulting in high adjustment costs and difficulty. Therefore, it is preferable to adjust the position of the smooth roller 4220 to achieve adjustment of the distance between the glue roller 4210 and the smooth roller 4220. (Refer to...) Figure 1 , Figure 2As shown, the base frame 4100 has a strip-shaped hole. The optical roller 4220 is installed in the strip-shaped hole and connected to a first adjusting component 4230. The first adjusting component 4230 drives the optical roller 4220 to slide along the strip-shaped hole to adjust the distance between the optical roller 4220 and the rubber roller 4210. The strip-shaped hole is horizontally set, and the first adjusting component 4230 is used to drive the optical roller 4220 to slide horizontally along the strip-shaped hole, thereby realizing the adjustment of the distance between the rubber roller 4210 and the optical roller 4220.

[0030] Reference Figure 2 As shown, the first adjustment assembly 4230 includes an adjustment rod 4231 and a first adjustment wheel 4232. The adjustment rod 4231 is rotatably mounted on the optical roller 4220 around its own axis, and the first adjustment wheel 4232 is throttle-connected to the adjustment rod 4231. The rotation of the first adjustment wheel 4232 causes the adjustment rod 4231 to slide horizontally, thereby causing the optical roller 4220 to slide along the strip-shaped hole. Specifically, a connector 4221 is sleeved on the end of the optical roller 4220, and the connector 4221 can be connected to the optical roller 4220 by means of key connection or other means. The base frame 4100 is provided with a first support structure 4110. The first end of the adjustment rod 4231 in the length direction is rotatably mounted on the connector 4221 around its own axis, and the second end passes through the first support structure 4110. The first adjustment wheel 4232 is throttle-connected to the middle part of the adjustment rod 4231. The first adjusting wheel 4232 is rotatably mounted on the base frame 4100 around its own axis. The first adjusting wheel 4232 can be manually rotated by setting a handwheel, or it can be driven to rotate by connecting a motor. In this embodiment, no limitation is made.

[0031] To precisely control and manage the distance between the rubber roller 4210 and the smooth roller 4220, refer to Figure 2 As shown, the base frame 4100 of this embodiment is equipped with a scale 4120, which is correspondingly set with the adjusting rod 4231. Preferably, the scale 4120 is set at the end of the adjusting rod 4231. The scale 4120 is equipped with a graduation. The rotation of the first adjusting wheel 4232 will drive the adjusting rod 4231 to move horizontally, thereby causing the adjusting rod 4231 and the scale 4120 to move relative to each other. By observing that the end of the adjusting rod 4231 is located at the graduation position of the scale 4120, the distance between the rubber roller 4210 and the light roller 4220 can be calculated.

[0032] In the embodiments of this application, reference is made to Figure 3 , Figure 4As shown, the glue tank assembly 4300 is disposed above the glue application roller assembly 4200. The glue tank assembly 4300 includes two opposing groove plates 4310, forming a V-shaped groove between the two groove plates 4310 for receiving glue. The bottom of the V-shaped groove has an opening, and the glue in the V-shaped groove flows to the glue application roller assembly 4200 through the bottom opening. Different strip materials use different glues, and different glues also have different viscosities and flowability. In order to be suitable for different types of glues, the bottom opening of the V-shaped groove is preferably set to be adjustable.

[0033] To adjust the size of the opening at the bottom of the V-groove, each of the two groove plates 4310 in this embodiment is provided with an extension rod 4320 on its opposite side. A central shaft 4330 passes through the extension rod 4320, and the central shaft 4330 is kinetically connected to the extension rod 4320. The central shaft 4330 is rotatably mounted on the base frame 4100 around its own axis. Rotation of the central shaft 4330 can drive the two groove plates 4310 to move relative to each other to adjust the opening size. (Refer to...) Figure 3 , Figure 4 As shown, extension rods 4320 are provided at both ends of the groove plate 4310 along its length. The central shaft 4330 passes through the extension rods 4320. The central shaft 4330 and the extension rods 4320 are connected by means of welding or other methods, or by key or fasteners such as bolts. In this embodiment, no limitation is made.

[0034] Reference Figure 3 , Figure 4 As shown, the base frame 4100 is provided with a second support structure 4130, and a central shaft 4330 is rotatably inserted through the second support structure 4130 around its own axis. A second adjusting wheel 4331 is installed at the end of the central shaft 4330, and a rack 4140 is installed on the base frame 4100. The rack 4140 meshes with the second adjusting wheel 4331, and the rack 4140 can move relative to the adjusting wheel and be fixed. Moving the rack 4140 can drive the adjusting wheel to rotate, thereby driving the central shaft 4330 to rotate synchronously. Specifically, the base frame 4100 is also provided with a third support structure 4170, and the rack 4140 is slidably installed on the third support structure 4170. The rack 4140 can be vertically or horizontally arranged, which is not limited in this embodiment.

[0035] Reference Figure 4 As shown. In embodiments of this application, the second adjusting wheel 4331 can be a ratchet, and the rack 4140 can be a ratchet tooth, so as to... Figure 4For example, the ratchet and ratchet teeth work together to limit the ratchet's counterclockwise rotation, thus ensuring the stability of the opening size at the bottom of the V-groove. The rack 4140 is vertically arranged and connected to an elastic element 4141 that drives it downward. When it is necessary to reduce the opening size at the bottom of the V-groove, the second adjusting wheel 4331 is rotated clockwise, and then the ratchet and ratchet teeth can automatically lock together. The third support structure 4170 is slidably mounted on the base frame 4100. When it is necessary to increase the opening size at the bottom of the V-groove, the third support structure 4170 is first slid horizontally to move the rack 4140 away from the second adjusting wheel 4331. Then, the groove plate 4310 will rotate around the central axis 4330 under its own weight. When it rotates to a set angle, the third support structure 4170 is slid to make the rack 4140 mesh with the second adjusting wheel 4331, thereby locking the groove plate 4310.

[0036] It is conceivable that the second adjusting wheel 4331 could also be configured as a common spur gear, with the rack 4140 arranged vertically or horizontally, and connected to a screw or similar structure to drive its lifting or horizontal sliding, and the screw fitted with a nut to lock its position. Figure 4 For example, when the rack 4140 rises, it drives the second adjusting wheel 4331 to rotate counterclockwise, thereby increasing the opening size at the bottom of the V-groove. After the opening size at the bottom of the V-groove is adjusted to the set size, the nut is locked. When the rack 4140 falls, it drives the second adjusting wheel 4331 to rotate clockwise, thereby decreasing the opening size at the bottom of the V-groove. After the opening size at the bottom of the V-groove is adjusted to the set size, the nut is locked.

[0037] In the embodiments of this application, in order to prevent glue from falling and accumulating on the ground, the base frame 4100 is also equipped with a glue collection tank 4150. The glue collection tank 4150 is located below the glue application roller group 4200 to collect the dripping glue. A discharge pipe 4151 is provided in the middle of the glue collection tank 4150, and a locking valve 4152 is provided on the discharge pipe 4151 to control the opening and closing of the discharge pipe 4151.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine the different embodiments or examples described in this specification.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An insulating tape production line, characterized in that, It includes a mixer, a two-roll mill, a four-roll mill, a glue coater, and a winding machine arranged in sequence, wherein, The internal mixer is used to mix and disperse the raw materials, fillers, and minor ingredients of the insulating tape to form a base material; The open mill is used to process the substrate into tape sheets; The four-roller machine is used to further process the tape sheet in order to control the width and thickness of the tape; The glue applicator is used to apply glue and / or coating to the tape; The winding machine is used to wind up tape coated with adhesive and / or paint; The glue applicator includes: Base frame; A glue-applying roller assembly includes a glue roller and a smooth roller, both of which are rotatably mounted on the base frame about their own axes. The glue roller is connected to a first transmission structure that drives its rotation. A glue tank assembly is disposed above the glue application roller assembly and is used to supply glue to the glue application roller assembly; A traction roller is rotatably mounted on the base frame about its own axis and is connected to a second transmission structure that drives its rotation. Along the conveying direction of the strip, the traction roller is positioned behind the glue-applying roller group, and the rotational speed of the traction roller is the same as that of the glue roller; in the vertical direction, the traction roller is higher than the glue-applying roller group.

2. The insulating tape production line according to claim 1, characterized in that: A drying duct is provided between the glue applicator and the winding machine, and the drying duct is used to dry the glue and / or coating on the tape.

3. The insulating tape production line according to claim 2, characterized in that: The drying temperature in the drying duct is set to 170°C to 190°C.

4. The insulating tape production line according to claim 1, characterized in that: The temperature of the sheet tape output from the open mill is 130°C to 150°C, and the temperature of the sheet tape output from the four-roll mill is 110°C to 120°C.

5. The insulated tape production line of claim 1, wherein: When mixing materials in the internal mixer, the raw materials and fillers of the insulating adhesive are first mixed at 175°C for 10 minutes, and then the small materials are added and mixed for another 10 minutes.

6. The insulated tape production line of claim 1, wherein: The base frame has a strip-shaped hole, the optical roller is installed in the strip-shaped hole and connected to a first adjustment component, the first adjustment component drives the optical roller to slide along the strip-shaped hole to adjust the distance between the optical roller and the rubber roller.

7. The insulated tape production line of claim 6, wherein: The first adjustment assembly includes an adjustment rod and a first adjustment wheel. The adjustment rod is rotatably mounted on the optical roller about its own axis, and the first adjustment wheel is throttle-connected to the adjustment rod. The first adjusting wheel rotates, causing the adjusting rod to slide horizontally, which in turn causes the optical roller to slide along the strip hole.

8. The insulated tape production line of claim 1, wherein: The glue tank assembly includes two opposing groove plates, with a V-shaped groove formed between the two groove plates for containing glue, and an opening at the bottom of the V-shaped groove.

9. The insulated tape production line of claim 8, wherein: Each of the two groove plates is provided with an extension rod on its opposite side, and the extension rod is provided with a central shaft, which is connected to the extension rod in a driving manner. The central shaft is rotatably mounted on the base frame around its own axis. The rotation of the central shaft can drive the two slot plates to move relative to each other to adjust the size of the opening.

10. The insulating tape production line according to claim 1, characterized in that: The base frame is equipped with a glue collection tank and a drive device. The glue collection tank is located below the glue coating roller assembly. The output end of the drive device is connected to the first transmission structure and the second transmission structure.

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