Double-sided adhesive tape coating machine

Abstract

The utility model discloses a double -faced adhesive tape gluing machine relates to double -faced adhesive tape gluing technical field, this double -faced adhesive tape gluing machine includes parallelly arranged mainframe and drive assembly, and the bottom fixed connection between mainframe and drive assembly has extension support, and extension support is away from the one end swing joint of mainframe and has the base material pay -off roll, wherein, the base material pay -off roll and mainframe are equipped with the static electricity cleaning mechanism of base material cleaning between, static electricity cleaning mechanism includes two symmetrical static electricity adsorption roller, and static electricity adsorption roller mainly includes rotating roller shaft, and the outside fixed connection of rotating roller shaft has wool cloth layer, in the utility model, through the friction between wool cloth layer and nylon cloth outside rotating roller shaft, form static electricity on the surface of wool cloth layer, when wool cloth layer rotates to the nearby of base material, the static electricity of wool cloth layer surface can be adsorbed to the foreign matter on the surface of base material, thereby carries out the cleaning to the surface of base material, improves the cleaning efficiency.

Description

Technical Field

[0001] This utility model specifically relates to the field of double-sided adhesive coating technology, and more specifically to a double-sided adhesive coating machine. Background Technology

[0002] A double-sided tape coating machine is an automated device specifically designed for uniformly coating adhesives onto the surface of substrates (such as films, paper, non-woven fabrics, foam, etc.) to produce double-sided tape (or single-sided tape). It transforms liquid adhesives into solid adhesive layers by precisely controlling the amount of adhesive applied, the coating speed, and the uniformity of the coating, making it a core piece of equipment in the double-sided tape production process. The core function of the double-sided tape coating machine is to uniformly coat adhesives (such as acrylic esters, rubber adhesives, hot melt adhesives, etc.) onto the substrate surface with a specific thickness and pattern, and then form a stable adhesive layer through drying and curing processes, ultimately bonding it with a release material to create the finished double-sided tape product.

[0003] However, in practice, it has been noted that double-sided tape generally needs to be applied to both sides of the substrate, and then release paper is placed on one side before winding it up to separate the adhesive layers and prevent adhesion. Since the substrate needs to be in direct contact with the adhesive layer and the adhesive layer needs to be evenly covered on the substrate, the cleanliness of the substrate surface is required to be high. If there are foreign objects on the substrate surface, such as particles or fibers, they will form "protrusions" on the substrate surface, causing the adhesive to not be evenly covered during coating, which will directly affect the stability of the coating process and the quality of the final product. However, since these foreign objects are usually small, they cannot be quickly removed by simply sweeping, and using a sweeping structure to clean the substrate surface can easily damage the substrate surface, thus affecting the production quality of the double-sided tape. Utility Model Content

[0004] The purpose of this invention is to provide a double-sided adhesive applicator that generates static electricity on the surface of the electrostatic adsorption roller through friction between the roller and the nylon cloth. When the roller rotates close to the substrate, the static electricity adsorbs and cleans foreign objects from the substrate surface without contacting the surface, thus preventing damage. This solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A double-sided adhesive applicator includes a main frame and a drive assembly arranged in parallel, with an extension bracket fixedly connected to the bottom of the main frame and the drive assembly, and a substrate unwinding roller movably connected to the end of the extension bracket away from the main frame. Among them, an electrostatic cleaning mechanism for cleaning the substrate is provided between the substrate unwinding roller and the main frame. The electrostatic cleaning mechanism includes two symmetrically arranged electrostatic adsorption rollers, and the electrostatic adsorption rollers mainly include a rotating roller shaft, and a wool cloth layer is fixedly connected to the outside of the rotating roller shaft.

[0006] As a further technical solution of this utility model, both ends of the electrostatic adsorption roller are provided with side supports, and the connection between the side supports and the electrostatic adsorption roller is interference-fitted with a bearing, wherein the bottom of the side support is fixedly connected to the extension support.

[0007] As a further technical solution of this utility model, nylon cloth that contacts the wool cloth layer is provided above and above the rotating roller shaft, and inclined brackets are fixedly connected to the outer side of the nylon cloth in a rectangular array. The end of the inclined bracket away from the nylon cloth is fixedly connected to the side bracket.

[0008] As a further technical solution of this utility model, the side support is provided with symmetrical substrate guide rollers on both sides, and both ends of the substrate guide rollers are movably connected to the side support, with the side support located on both sides between the two rotating roller shafts.

[0009] As a further technical solution of this utility model, one end of each of the two rotating roller shafts is fixedly connected to a transmission pulley, and a transmission belt is sleeved on the outer side of the transmission pulley. One of the rotating roller shafts, at the end furthest from the drive pulley, passes through a side support and is coupled to a rotating motor, which is fixedly connected to the side support.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, a rotary motor drives one of the electrostatic adsorption rollers to rotate, and the other end of the electrostatic adsorption roller drives the other electrostatic adsorption roller to rotate through the transmission cooperation between the transmission pulley and the transmission belt. The two symmetrically arranged electrostatic adsorption rollers can clean the substrate that passes through the middle. Moreover, the electrostatic adsorption rollers do not come into contact with the surface of the substrate, thereby ensuring that the substrate is cleaned without damaging it. 2. In this utility model, when the rotating roller rotates, friction is generated between the wool cloth layer and the nylon cloth fixed on the outside of the rotating roller, thereby generating static electricity on the surface of the wool cloth layer. The static electricity will remain on the surface of the wool cloth layer. When the wool cloth layer rotates to the vicinity of the substrate, the static electricity remaining on the surface of the wool cloth layer can adsorb foreign objects on the surface of the substrate, thereby cleaning the surface of the substrate and improving cleaning efficiency. 3. In this utility model, substrate guide rollers symmetrically arranged on both sides of the electrostatic adsorption roller guide the substrate, allowing the substrate to pass between the two electrostatic adsorption rollers, thus preventing the substrate from contacting either electrostatic adsorption roller and further improving the protection effect on the profile. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0012] Figure 2 This utility model Figure 1 Another perspective view.

[0013] Figure 3 This is a three-dimensional structural diagram of the electrostatic cleaning mechanism in this utility model.

[0014] Figure 4 This utility model Figure 3 Another perspective view.

[0015] Figure 5 This utility model Figure 3 A schematic diagram of the split structure.

[0016] Figure 6 This utility model Figure 5 A magnified view of a portion of the image.

[0017] In the picture: Main frame-1, drive assembly-2, release paper unwinding frame-3, finished product winding roller-4, pressing roller-5, glue coating roller-6, glue outlet head-7, extension bracket-8, electrostatic cleaning mechanism-9, side bracket-91, electrostatic adsorption roller-92, rotating roller shaft-921, wool cloth layer-922, nylon cloth-93, tilting bracket-94, substrate guide roller-95, transmission pulley-96, transmission belt-97, drive motor-98, substrate unwinding roller-10. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-6This utility model provides a double-sided adhesive applicator, including a main frame 1 and a drive assembly 2 arranged in parallel. An extension bracket 8 is fixedly connected to the bottom between the main frame 1 and the drive assembly 2, and a substrate unwinding roller 10 is movably connected to one end of the extension bracket 8 away from the main frame 1. Among them, an electrostatic cleaning mechanism 9 for cleaning the substrate is provided between the substrate unwinding roller 10 and the main frame 1. The electrostatic cleaning mechanism 9 includes two symmetrically arranged electrostatic adsorption rollers 92, and the electrostatic adsorption rollers 92 mainly include a rotating roller shaft 921, and a wool cloth layer 922 is fixedly connected to the outside of the rotating roller shaft 921.

[0020] By adopting the above technical solution, when the rotating roller 921 rotates, friction is generated between the wool cloth layer 922 and the nylon cloth 93 fixed on the outside of the rotating roller 921, thereby generating static electricity on the surface of the wool cloth layer 922. The static electricity will remain on the surface of the wool cloth layer 922. When the wool cloth layer 922 rotates to the vicinity of the substrate, the static electricity remaining on the surface of the wool cloth layer 922 can adsorb foreign objects on the surface of the substrate, thereby cleaning the surface of the substrate and improving cleaning efficiency.

[0021] Furthermore, both ends of the electrostatic adsorption roller 92 are provided with side supports 91, and the connection between the side supports 91 and the electrostatic adsorption roller 92 is interference-fitted with a bearing, wherein the bottom of the side support 91 is fixedly connected to the extension support 8.

[0022] Furthermore, nylon fabric 93 is provided above and above the rotating roller 921 respectively, which is in contact with the wool fabric layer 922, and inclined brackets 94 are fixedly connected to the outer side of the nylon fabric 93 in a rectangular array. The end of the inclined bracket 94 away from the nylon cloth 93 is fixedly connected to the side bracket 91.

[0023] Furthermore, the side support 91 is provided with symmetrical substrate guide rollers 95 on both sides, and both ends of the substrate guide rollers 95 are movably connected to the side support 91. The side support 91 is located on both sides between the two rotating roller shafts 921.

[0024] By adopting the above technical solution, the substrate guide rollers 95 symmetrically arranged on both sides of the electrostatic adsorption roller 92 guide the substrate, allowing the substrate to pass between the two electrostatic adsorption rollers 92, thereby preventing the substrate from contacting either electrostatic adsorption roller 92 and further improving the protection effect on the profile.

[0025] Furthermore, each of the two rotating roller shafts 921 is fixedly connected to a transmission pulley 96 at one end, and a transmission belt 97 is sleeved on the outer side of the transmission pulley 96. One of the rotating roller shafts 921, located away from the transmission pulley 96, passes through the side bracket 91 and is connected to a rotating motor 98, and the rotating motor 98 is fixedly connected to the side bracket 91.

[0026] By adopting the above technical solution, the rotary motor 98 drives one of the electrostatic adsorption rollers 92 to rotate, and the other end of the electrostatic adsorption roller 92 drives the other electrostatic adsorption roller 92 to rotate through the transmission cooperation between the transmission pulley 96 and the transmission belt 97. The two symmetrically arranged electrostatic adsorption rollers 92 can clean the substrate that passes through the middle. Moreover, the electrostatic adsorption rollers 92 do not come into contact with the surface of the substrate, thereby ensuring that the substrate is cleaned without damaging it.

[0027] Furthermore, a symmetrically arranged glue-applying roller 6 and glue-dispensing head 7 are installed between the main frame 1 and the drive assembly 2. A symmetrical pressing roller 5 is also provided on the side of the glue-applying roller 6 away from the glue-dispensing head 7. A release paper unwinding frame 3 and a finished product winding roller 4 are respectively provided on the end of the main frame 1 away from the electrostatic cleaning mechanism 9.

[0028] Furthermore, one end of the coating roller 6 and the pressing roller 5 is movably connected to the main frame 1, and the other end passes through the drive assembly 2 and is connected to the drive motor fixed inside the drive assembly 2.

[0029] Furthermore, a drive motor is fixedly connected to the inner side of the drive assembly 2, and a drive gear is fixedly connected to the end of the drive motor. A driven gear is fixedly connected to one end of the release paper unwinding frame 3, the finished product winding roller 4, the pressing roller 5, and the glue coating roller 6 extending to the inner side of the drive assembly 2. The driven gears at the ends of the release paper unwinding frame 3, the finished product winding roller 4, the pressing roller 5, and the glue coating roller 6 are respectively engaged with the drive gear at the end of the drive motor. Through the meshing between the driven gear and the drive gear, the drive motor drives the release paper unwinding frame 3, the finished product winding roller 4, the pressing roller 5, and the glue coating roller 6 to rotate, ensuring uniform speed during the glue application process.

[0030] The working principle of this utility model is as follows: In use, the substrate is first placed on the substrate unwinding roller 10. The drive motor inside the drive assembly 2 drives the release paper unwinding frame 3, the finished product winding roller 4, the pressing roller 5, and the gluing roller 6 to rotate at a uniform speed. Since the substrate needs to pass through the symmetrical substrate guide rollers 95 on both sides, the substrate guide rollers 95 support the substrate and prevent it from contacting the electrostatic adsorption roller 92. At this time, the rotary motor 98 drives one of the electrostatic adsorption rollers 92 to rotate, while the other end of the electrostatic adsorption roller 92 drives the other electrostatic adsorption roller 92 to rotate through the transmission cooperation between the transmission pulley 96 and the transmission belt 97. The roller is fixed to the rotating roller shaft. Friction occurs between the outer wool fabric layer 922 and the nylon fabric 93, resulting in static electricity on the surface of the wool fabric layer 922. This static electricity remains on the surface of the wool fabric layer 922. When the wool fabric layer 922 rotates to the vicinity of the substrate, the static electricity on the surface of the wool fabric layer 922 can attract foreign objects on the surface of the substrate. Then, the substrate moves between the coating roller 6 and the glue outlet 7 to apply glue to the substrate. Then, the symmetrically arranged pressing rollers 5 bond the glued substrate and the release paper on the release paper unwinding frame 3 together. Finally, double-sided tape is wrapped around the finished winding roller 4. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-sided tape applicator, characterized by: It includes a main frame (1) and a drive assembly (2) arranged in parallel, and an extension bracket (8) is fixedly connected to the bottom between the main frame (1) and the drive assembly (2), and a substrate unwinding roller (10) is movably connected to the end of the extension bracket (8) away from the main frame (1). Among them, an electrostatic cleaning mechanism (9) for cleaning the substrate is provided between the substrate unwinding roller (10) and the main frame (1). The electrostatic cleaning mechanism (9) includes two symmetrically arranged electrostatic adsorption rollers (92), and the electrostatic adsorption rollers (92) mainly include a rotating roller shaft (921), and a wool cloth layer (922) is fixedly connected to the outside of the rotating roller shaft (921).

2. The double-sided tape applicator of claim 1, wherein: Both ends of the electrostatic adsorption roller (92) are provided with side brackets (91), and the connection between the side brackets (91) and the electrostatic adsorption roller (92) is interference-fitted with bearings. The bottom of the side brackets (91) is fixedly connected to the extension bracket (8).

3. The double-sided tape applicator of claim 2, wherein: The rotating roller (921) is provided with nylon cloth (93) above and above the wool cloth layer (922), and the outer side of the nylon cloth (93) is fixedly connected with inclined brackets (94) in a rectangular array. The end of the inclined bracket (94) away from the nylon cloth (93) is fixedly connected to the side bracket (91).

4. The double-sided tape applicator of claim 3, wherein: The side support (91) is provided with symmetrical substrate guide rollers (95) on both sides, and both ends of the substrate guide rollers (95) are movably connected to the side support (91). The side support (91) is located on both sides between the two rotating roller shafts (921).

5. The double-sided tape applicator of claim 4, wherein: One end of each of the two rotating roller shafts (921) is fixedly connected to a drive pulley (96), and a drive belt (97) is sleeved on the outside of the drive pulley (96). One of the rotating roller shafts (921) is connected to a rotating motor (98) through a side bracket (91) at one end away from the drive pulley (96), and the rotating motor (98) is fixedly connected to the side bracket (91).

6. The double-sided tape applicator of claim 1, wherein: The main frame (1) and the drive assembly (2) are also equipped with symmetrically arranged glue-applying rollers (6) and glue outlets (7), and symmetrical pressing rollers (5) are provided on the side of the glue-applying rollers (6) away from the glue outlets (7), while the end of the main frame (1) away from the electrostatic cleaning mechanism (9) is provided with release paper unwinding frame (3) and finished product winding roller (4).

7. The double-sided tape applicator of claim 6, wherein: The glue-applying roller (6) and the pressing roller (5) are movably connected at one end to the main frame (1), and at the other end, they pass through the drive assembly (2) and are connected to the drive motor fixed inside the drive assembly (2).

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