Adhesive tape roller coating equipment

Abstract

The utility model discloses adhesive tape roller coating equipment. The adhesive tape roller coating equipment comprises a first roller coating assembly, a second roller coating assembly and a third roller coating assembly, the first roller coating assembly comprises a first coating roller and a first pressing roller which are arranged in parallel, the surface of the first coating roller is provided with a protruding part, the protruding part forms a groove in the surface of the first coating roller, and an adhesive can flow in the groove; the second roller coating assembly comprises a scraper and a second compression roller which are arranged in parallel, one end of the scraper for scraping the adhesive tape is provided with an inclined surface, and the adhesive tape is arranged between the inclined surface and the second compression roller; the third roller coating assembly comprises an air knife and a third pressing roller which are arranged in parallel, the air knife can blow out air and is used for blowing the air to the side, coated with the adhesive, of the adhesive tape, and the air blowing direction of the air knife is opposite to the rotating direction of the third pressing roller. According to the adhesive tape roller coating equipment, the uniformity of an adhesive on the surface of a base material can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller coating equipment, in particular to an adhesive tape roller coating equipment. Background Art

[0002] Adhesive tape is used to bond two or more unconnected objects. It consists of two parts: a backing material and an adhesive. During tape production, the adhesive must be applied to the backing material. Currently, a problem with tape production equipment is uneven adhesive roll coating. This means that some areas of the backing material may have too little or too much adhesive, resulting in poor adhesion. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a tape roller coating device that can effectively improve the uniformity of the adhesive on the surface of the substrate.

[0004] According to the first embodiment of the present invention, a tape roller coating device includes:

[0005] The first roller coating assembly includes a coating roller and a first pressure roller arranged parallel to each other, wherein the coating roller has a protrusion on its surface, and the protrusion forms a groove on the surface of the coating roller, and the adhesive can flow in the groove;

[0006] A second roller coating assembly comprises a scraper and a second pressing roller arranged in parallel with each other, wherein one end of the scraper for scraping the adhesive tape is provided with an inclined surface, and the adhesive tape is arranged between the inclined surface and the second pressing roller;

[0007] The third roller coating assembly includes an air knife and a third pressure roller arranged parallel to each other. The air knife can blow out gas and is used to blow it toward the side of the tape coated with adhesive. The direction of the air knife blowing out gas is opposite to the rotation direction of the third pressure roller.

[0008] According to an embodiment of the present invention, a tape roller coating device has at least the following beneficial effects: the coating roller and the first pressure roller cooperate, and the surface of the coating roller is provided with a raised portion for forming a groove, the scraper and the second pressure roller cooperate, and the tape passes between the inclined surface of the scraper and the second pressure roller, the air knife and the third pressure roller cooperate, and the direction of the air blown out by the air knife is opposite to the rotation direction of the third pressure roller, and the air knife is used to blow the adhesive of the tape flat, and the tape passes through the first roller coating assembly, the second roller coating assembly and the third roller coating assembly in sequence, and is pre-rolled, scraped and blown in sequence, which can effectively improve the uniformity of the adhesive on the surface of the substrate.

[0009] According to some embodiments of the present invention, the protrusion is configured as an iron wire, and the iron wire is wound around the surface of the coating roller.

[0010] According to some embodiments of the present invention, the groove formed by the iron wire on the surface of the coating roller is continuous and uninterrupted, and the adhesive can move from one end of the groove to the other end.

[0011] According to some embodiments of the present invention, the iron wire is configured as an iron ring with an annular structure, and the coating roller is provided with a plurality of the iron rings arranged along the length direction.

[0012] According to some embodiments of the present invention, the coating roller is provided with a discharge channel, and the discharge channel is communicated with the groove.

[0013] According to some embodiments of the present invention, the width of the scraper is greater than or equal to the width of the tape, and the edge of the scraper is provided with a material collection box and a guide portion for guiding the adhesive to the material collection box.

[0014] According to some embodiments of the present invention, the guide portion is configured as a baffle, and the baffle is provided with a guide groove for guiding the adhesive.

[0015] According to some embodiments of the present invention, the air knife is connected to an air supply device, and the transverse length of the air outlet of the air knife projected to the tape is greater than the width of the tape.

[0016] According to some embodiments of the present invention, the air outlet of the air knife is a rectangular through hole, and the length of the rectangular through hole is greater than the width of the tape.

[0017] According to some embodiments of the present invention, a cooling device is further provided at the rear end of the third roller coating assembly in the conveying direction of the tape.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of an adhesive tape roller coating device according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A partial enlarged view of A is shown;

[0022] Figure 3 A schematic diagram of a coating roller according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of a coating roller according to another embodiment of the present invention.

[0024] Reference numerals:

[0025] The first coating roller assembly 1, the coating roller 2, the first pressure roller 3, the raised portion 4, the second coating roller assembly 5, the scraper 6, the second pressure roller 7, the guide portion 8, the guide groove 9, the collecting box 10, the third coating roller assembly 11, the air knife 12, the third pressure roller 13, the cooling device 14, and the discharging device 15. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of this utility model, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. If the term "first" or "second" is used in a description, it is only used to distinguish technical features and should not be understood to indicate or imply relative importance, implicitly specify the number of the indicated technical features, or implicitly specify the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Adhesive tape is used to bond two or more unconnected objects. It consists of two parts: a backing material and an adhesive. During tape production, the adhesive must be applied to the backing material. Currently, a problem with tape production equipment is uneven adhesive roll coating. This means that some areas of the backing material may have too little or too much adhesive, resulting in poor adhesion.

[0031] In response to the above technical problems, an embodiment of the present invention provides a tape roller coating device. By setting a first roller coating component, a second roller coating component and a third roller coating component, a processing flow of pre-roll coating, scraping and blowing is realized, effectively improving the uniformity of the adhesive on the surface of the substrate.

[0032] The following is combined with Figures 1 to 4 The adhesive tape roller coating device according to the embodiment of the present invention is described.

[0033] Reference Figure 1 As shown, in an embodiment of the present invention, the tape roller coating apparatus includes a first roller coating assembly 1, a second roller coating assembly 5, and a third roller coating assembly 11. The tape substrate passes through the first roller coating assembly 1, the second roller coating assembly 5, and the third roller coating assembly 11 in sequence. The first roller coating assembly 1 is used to pre-coat the substrate, applying a thick layer of adhesive to the substrate surface. The second roller coating assembly 5 is used to scrape the adhesive on the substrate. The third roller coating assembly 11 is used to blow the scraped adhesive smooth and cool it.

[0034] It should be noted that in the embodiment of the present invention, the first roller coating assembly 1 includes a coating roller 2 and a first pressure roller 3 arranged parallel to each other. The surface of the coating roller 2 is provided with a raised portion 4, and the raised portion 4 forms a groove on the surface of the coating roller 2, and the adhesive can flow in the groove. The adhesive sent out from the discharge device 15 falls on the substrate. The coating roller 2 cooperates with the first pressure roller 3 to squeeze the adhesive so that the adhesive is thickly spread on the substrate. The groove can discharge excess adhesive. The coating roller 2 is provided with a discharge channel, which is connected to the groove. The adhesive moves along the groove to the discharge channel and is discharged from the coating roller 2. The discharged adhesive can be recycled.

[0035] It should be noted that, in the embodiment of the present invention, the protrusion 4 is configured as an iron wire, which is wound around the surface of the coating roller 2. The diameter of the iron wire is moderate, which can well coat the adhesive on the substrate and is not prone to leaking.

[0036] Reference Figure 3 As shown, in the embodiment of the present invention, the groove formed by the wire on the surface of the coating roller 2 is continuous and uninterrupted, and the adhesive can move from one end of the groove to the other end. The design of this embodiment can make the flow of the adhesive smoother.

[0037] Reference Figure 4 As shown, in the embodiment of the present invention, the iron wire is configured as an annular iron ring, and the coating roller 2 is provided with a plurality of iron rings arranged along the length direction. This embodiment design can leave a thicker adhesive on the surface of the substrate during the pre-roll coating, so that the final product has a stronger adhesive effect.

[0038] It should be noted that the specific structural design of the iron wire is not limited to the above Figure 3 and Figure 4 The embodiment can be designed into other structures, which will not be described in detail here.

[0039] Reference Figure 1 and Figure 2As shown, in this embodiment of the present invention, the second roller coating assembly 5 includes a scraper 6 and a second pressure roller 7, which are arranged parallel to each other. The scraper 6 has an inclined surface at one end for scraping the adhesive tape, and the adhesive tape is positioned between the inclined surface and the second pressure roller 7. The width of the scraper 6 is greater than or equal to the width of the adhesive tape. The edge of the scraper 6 is provided with a collection box 10 and a guide portion 8 for directing the adhesive to the collection box 10. The guide portion 8 is configured as a baffle with a guide groove 9 for guiding the adhesive.

[0040] Reference Figure 1 As shown, in this embodiment of the present invention, the third roller coating assembly 11 includes an air knife 12 and a third pressure roller 13, which are arranged parallel to each other. The air knife 12 is capable of blowing air toward the side of the tape coated with adhesive. The direction of the air blown by the air knife 12 is opposite to the rotation direction of the third pressure roller 13. The air knife 12 is connected to an air supply device, and the horizontal length of the air outlet of the air knife 12 projected onto the tape is greater than the width of the tape. The air outlet of the air knife 12 is a rectangular through hole, the length of which is greater than the width of the tape.

[0041] Reference Figure 1 As shown, in the embodiment of the present invention, the rear end of the third roller coating assembly 11 in the direction of conveying the tape is further provided with a cooling device 14, which helps to quickly cool the tape for subsequent collection. The cooling device 14 is configured as a blower.

[0042] The working process of the tape roller coating device provided by the embodiment of the utility model is as follows:

[0043] The substrate passes between the coating roller 2 and the first pressure roller 3, and the discharging device 15 delivers the adhesive. The coating roller 2 and the first pressure roller 3 cooperate to spread the adhesive flat on the surface of the substrate. The excess adhesive flows from the groove to the discharge channel. The substrate continues to be transported to between the scraper 6 and the second pressure roller 7. The scraper 6 scrapes the adhesive on the surface of the substrate flat. The excess adhesive flows along the guide part 8 to the collecting box 10, and then the substrate is transported to between the air knife 12 and the third pressure roller 13. The air knife 12 blows the adhesive on the surface of the substrate flat, and then the cooling device 14 further cools the tape.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A tape roller coating device, characterized in that: include: The first roller coating assembly includes a coating roller and a first pressure roller arranged parallel to each other, wherein the coating roller has a protrusion on its surface, and the protrusion forms a groove on the surface of the coating roller, and the adhesive can flow in the groove; A second roller coating assembly includes a scraper and a second pressing roller arranged in parallel with each other, wherein one end of the scraper for scraping the adhesive tape is provided with an inclined surface, and the adhesive tape is arranged between the inclined surface and the second pressing roller; The third roller coating assembly includes an air knife and a third pressure roller arranged parallel to each other. The air knife can blow out gas and is used to blow it toward the side of the tape coated with adhesive. The direction of the air knife blowing out gas is opposite to the rotation direction of the third pressure roller.

2. The adhesive tape roller coating device according to claim 1, characterized in that: The protrusion is configured as an iron wire, and the iron wire is wound around the surface of the coating roller.

3. The adhesive tape roller coating device according to claim 2, characterized in that: The groove formed by the iron wire on the surface of the coating roller is continuous and uninterrupted, and the adhesive can move from one end of the groove to the other end.

4. The adhesive tape roller coating device according to claim 2, characterized in that: The iron wire is configured as an iron ring with an annular structure, and the coating roller is provided with a plurality of the iron rings arranged along the length direction.

5. The adhesive tape roller coating device according to claim 1, characterized in that: The coating roller is provided with a discharge channel, and the discharge channel is communicated with the groove.

6. The adhesive tape roller coating device according to claim 1, characterized in that: The width of the scraper is greater than or equal to the width of the tape. The edge of the scraper is provided with a material collection box and a guide portion for guiding the adhesive to the material collection box.

7. The adhesive tape roller coating device according to claim 6, characterized in that: The guide portion is configured as a baffle, and the baffle is provided with a guide groove for guiding the adhesive.

8. The adhesive tape roller coating device according to claim 1, characterized in that: The air knife is connected to the air supply device, and the horizontal length of the air outlet of the air knife projected to the adhesive tape is greater than the width of the adhesive tape.

9. The adhesive tape roller coating device according to claim 1, characterized in that: The air outlet of the air knife is a rectangular through hole, and the length of the rectangular through hole is greater than the width of the adhesive tape.

10. The adhesive tape roller coating device according to claim 1, characterized in that: The rear end of the third roller coating assembly in the conveying direction of the tape is also provided with a cooling device.

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