A coating process to avoid adhesive layer overlap

Abstract

This invention discloses a coating process to avoid adhesive layer overlap, comprising the following steps: dividing the area on the fabric to be coated with adhesive, pre-setting multiple coating paths and the order of each coating path; before coating, determining whether the start and end points of the current coating path fall on the existing adhesive strip's coating path; if neither the start nor the end point of the current coating path falls on the existing adhesive strip's coating path, a moving mechanism drives the coating head to the start point of the coating path and applies adhesive to the fabric according to the pre-set coating path; if at least one of the start and end points of the current coating path falls on the existing adhesive strip's coating path, the coating path is adjusted. This coating process avoids overlapping areas on each coating path during coating, preventing partial overlap of the adhesive layer and ensuring equal thickness of the adhesive layer at all locations.

Description

Technical Field

[0001] This invention relates to the manufacture of underwear, and more particularly to a coating process that avoids overlapping of adhesive layers. Background Technology

[0002] In the manufacturing process of seamless underwear, an adhesive applicator is typically used to continuously apply adhesive along the edges and middle of two pieces of fabric before bonding them together. Before applying adhesive, the application path needs to be determined so that the adhesive applicator can drive the applicator to apply adhesive to the fabric according to the path. However, current application paths are generally designed primarily to completely cover the area to be adhesiveped. Therefore, after the applicator applies adhesive according to the path, the later-applied adhesive strips overlap with the earlier-applied strips, resulting in uneven adhesive thickness on the fabric, with some areas being too thick, affecting comfort. Simply removing the sections of the later-applied path that cause overlap after adhesive application can easily result in many unadhesive blank areas in the area to be adhesiveped, thus affecting the tightness of the fabric bonding. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a coating process that avoids the overlap of adhesive layers. This coating process can avoid overlapping areas on each coating path during coating, prevent the adhesive layer from overlapping in some positions, and ensure that the thickness of the adhesive layer is equal at all positions.

[0004] To solve the above technical problems, the following technical solution is adopted:

[0005] A coating process that avoids adhesive layer overlap is characterized by comprising the following steps:

[0006] (1) An adhesive applicator is used. The adhesive applicator includes an adhesive applicator head, a rotating mechanism and a moving mechanism. The moving mechanism can drive the adhesive applicator head to rise and fall and move in the horizontal plane. The rotating mechanism can drive the adhesive applicator head to rotate in the horizontal plane.

[0007] (2) Divide the area on the fabric that needs to be coated with glue, and pre-set multiple glue application paths and the order of each glue application path;

[0008] (3) Before applying glue, determine whether the starting point and ending point of the current glue application path fall on the existing glue application path of the glue strip;

[0009] (4) If the start and end points of the current adhesive application path do not fall on the existing adhesive strip application path, the moving mechanism drives the adhesive application head to the start point of the adhesive application path and applies adhesive to the fabric according to the preset adhesive application path to form an adhesive strip. When applying adhesive, the moving mechanism drives the adhesive application head to press down and move. When switching the adhesive application path, the moving mechanism drives the adhesive application head to rise and move.

[0010] (5) If at least one of the start and end points of the current adhesive application path falls on the existing adhesive strip's application path, then adjust the adhesive application path as follows:

[0011] (5-1) When the starting point of the current glue application path falls on the glue application path of the existing glue strip, the moving mechanism drives the glue application head to the starting point of the current glue application path. While keeping the glue application head raised, the rotating mechanism drives the glue application head to rotate so that the glue application head is tangent to or partially overlaps with the glue application path of the existing glue strip. Then, the moving mechanism drives the glue application head to advance along the current glue application path by a distance of 0.5 times the glue application width so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip. Then, the moving mechanism drives the glue application head to press down and apply glue normally to form a glue strip.

[0012] (5-2) When the end point of the current glue application path falls on the glue application path of the existing glue strip, on the basis of normal glue application, the rotating mechanism drives the glue application head to rotate, so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip at a distance of 0.5 times the glue application width from the end point to form a glue strip. At the same time, the moving mechanism drives the glue application head to rise and stop glue application.

[0013] This adhesive coating process allows for adjustments to the angle and path of the coating head based on potential overlap areas, following the coating sequence. This ensures the coating head avoids overlapping areas at the start and end points, minimizing even localized overlap and preventing excessive thickness of the adhesive strip. It also minimizes large blank areas resulting from adjustments. Therefore, in practice, this process allows the coating head to smoothly apply the adhesive strip in a single path, avoiding overlap with previous strips and ensuring uniform adhesive thickness across the fabric. Furthermore, it minimizes blank areas at desired application points, guaranteeing a tight bond and preventing subsequent fabric separation. Typically, a complete adhesive coating path on the fabric consists of a combination of straight lines and curved sections with significant curvature.

[0014] Typically, the above-mentioned method divides the areas on the fabric that need to be coated with adhesive, presets multiple adhesive application paths and the order of each adhesive application path, and then forms a CAD electronic diagram with a preset order of paths. The adhesive application device applies adhesive according to the electronic diagram. The method of determining whether the start and end points of the current adhesive application path fall on the existing adhesive strip's adhesive application path is to judge from the order of the electronic diagram, or it can be judged visually by using a camera to capture images.

[0015] When adjusting the glue applicator by rotation, if the glue application path of the existing glue strip is an arc, the glue applicator should be tangent to the glue application path of the existing glue strip; if the glue application path of the existing glue strip is a straight line, the glue applicator should overlap with the glue application path of the existing glue strip.

[0016] The above-mentioned adhesive applicator can adopt the same structure as the one disclosed in CN220048765U.

[0017] In the preferred embodiment, the method of dividing the glue application position and presetting multiple glue application paths in step (2) is to define a single glue strip application as one application that can continuously cover the required glue application position without interruption, and the path traversed by the midpoint of the glue application head during a single glue strip application is defined as the glue application path.

[0018] In the preferred embodiment, the determination of the order of each adhesive application path in step (2) is based on the shortest total movement path of the adhesive application head when completing the coating of the entire piece of fabric. The order of each preset adhesive application path is determined accordingly.

[0019] In the preferred embodiment, in step (2), an electronic template is set to control the movement of the dispensing head. The electronic template presets multiple dispensing paths and the order of each dispensing path. The electronic template can be a computer equipped with the above algorithm.

[0020] In a preferred embodiment, in step (5-1), when the applicator head rotates to adjust its angle at the starting point with one end as the center, after the moving mechanism drives the applicator head to press down, the applicator head first continues to rotate with that end as the center until the midpoint of the applicator head coincides with the midpoint of the current applicator path. Then, the moving mechanism drives the applicator head to continue applicating along the current applicator path. This applicator method is generally used when the current applicator path is a straight line. Using this method, the applicator head can start from the edge of the existing adhesive strip, first applying adhesive in a fan shape around one end, and then returning to a position perpendicular to the current applicator path, thus ensuring maximum area applicability on straight sections. Of course, this method can also be used when the current applicator path is curved.

[0021] In another preferred embodiment, in step (5-1), when the applicator head rotates to adjust its angle at the starting point with its midpoint as the center, the moving mechanism, after driving the applicator head downwards, normally applies adhesive along the current application path. This application method is generally used when the current application path is curved; after the angle adjustment, the applicator head can directly apply adhesive along the current application path. Of course, this method can also be used when the current application path is straight, but the adhesive area on the straight segment will be relatively smaller compared to the case where the applicator head is perpendicular to the current application path.

[0022] In a preferred embodiment, in step (5-2), when the applicator head applies adhesive along the current application path, and one end of the applicator head contacts the edge of the existing adhesive strip at a distance of 0.5 times the application width from the endpoint, the rotating mechanism drives the applicator head to rotate around this end as the center, until the applicator head is tangent to or partially overlaps with the edge of the existing adhesive strip at a distance of 0.5 times the application width from the endpoint. This application method is generally applied when the current application path is a straight line. Using this method, when the applicator head is perpendicular to the current application path, it allows for maximum coverage of the straight section before the applicator head performs fan-shaped application around one end. Of course, this method can also be used when the current application path is curved.

[0023] In another preferred embodiment, in step (5-2), the rotating mechanism drives the applicator head to rotate in advance before reaching the end of the current applicator path, so that the applicator head is tangent to or partially overlaps with the edge of the existing adhesive strip at a distance of 0.5 times the applicator width from the end point. This applicator method is generally used when the current applicator path is curved, and the applicator head can be angled while applicating along the current applicator path. Of course, this method can also be used when the current applicator path is straight, but the applicator area on the straight segment will be relatively smaller compared to the case where the applicator head is perpendicular to the current applicator path.

[0024] Generally, if both the starting and ending points of the current adhesive application path fall on the existing adhesive strip's application path, the above processing method can be freely selected at the starting and ending points depending on whether the current application path is a straight line or an arc. That is, if the current application path is a straight line, the adhesive head can first perform fan-shaped rotating adhesive application at the starting point, then perform straight adhesive application along the current application path, and finally perform fan-shaped rotating adhesive application at the ending point. This method can achieve the maximum area of ​​adhesive application. If the current application path is an arc, the adhesive head can adjust its angle at the starting point until it applies adhesive along the current application path, and then rotate again before the ending point so that the adhesive head is tangent to or partially overlaps with the edge of the existing adhesive strip at the ending point.

[0025] In the preferred embodiment, in step (3), the curved edge of the fabric is also regarded as the glue application path of the existing adhesive strip. In step (5), the current glue application path with the starting point and ending point falling on the curved edge of the fabric is also adjusted.

[0026] In the preferred embodiment, in step (3), the current adhesive path, whose middle position falls on the adhesive path of the existing adhesive strip, is divided into two independent adhesive paths, and then it is determined whether the starting point and ending point of the adhesive path fall on the adhesive path of the existing adhesive strip.

[0027] The beneficial effects of this invention are as follows: When this adhesive coating process is carried out according to the actual adhesive coating path, the adhesive head can smoothly complete the coating of the adhesive strip in one coating path without overlapping with the previous adhesive strip, ensuring that the thickness of the adhesive layer on the fabric is equal at all positions, and the coated adhesive strip can also overlap with the predetermined adhesive area to the maximum extent, ensuring that the subsequent fabric can be tightly adhered and not easily loosened. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the adhesive strip structure after the adhesive application head applies adhesive according to the preset adhesive application path when the preset adhesive application path is a straight line in Embodiment 1 of the present invention.

[0029] Figure 2 This is Example 1 of the present invention. Figure 1 After adjusting the preset glue application path, the glue application head applies glue according to the modified glue application path, as shown in the structural diagram below.

[0030] Figure 3 This is a schematic diagram of the adhesive strip structure after the adhesive application head applies adhesive according to the preset adhesive application path when the preset adhesive application path is an arc in Embodiment 1 of the present invention;

[0031] Figure 4 This is Example 1 of the present invention. Figure 3 After adjusting the preset glue application path, the glue application head applies glue according to the modified glue application path, as shown in the structural diagram below.

[0032] Figure 5 This is a schematic diagram of the adhesive strip structure after the adhesive application head applies adhesive according to the preset adhesive application path when the preset adhesive application path is a straight line in Embodiment 2 of the present invention;

[0033] Figure 6 This is for Embodiment 2 of the present invention. Figure 5 The diagram shows the structure after the preset glue application path is adjusted and the glue application head applies glue according to the modified path. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0035] Example 1: A coating process to avoid adhesive layer overlap, comprising the following steps:

[0036] (1) An adhesive applicator is used. The adhesive applicator includes an adhesive applicator head, a rotating mechanism and a moving mechanism. The moving mechanism can drive the adhesive applicator head to rise and fall and move in the horizontal plane. The rotating mechanism can drive the adhesive applicator head to rotate in the horizontal plane.

[0037] (2) Divide the area on the fabric that needs to be coated with glue. A single application of glue strip 1 is defined as one application that can continuously cover the required area without interruption. The path taken by the midpoint of the glue application head during the application of glue strip 1 is defined as the glue application path. The order of each preset glue application path is divided based on the shortest total movement path of the glue application head when completing the coating of the entire fabric according to the glue application path.

[0038] (3) Before applying glue, determine whether the starting point and ending point of the current glue application path 2 fall on the existing glue application path 3 of the glue strip;

[0039] (4) If the starting point and ending point of the current adhesive application path 2 do not fall on the existing adhesive application path 3, the moving mechanism drives the adhesive application head to the starting point of the adhesive application path and applies adhesive to the fabric according to the preset adhesive application path. When applying adhesive, the moving mechanism drives the adhesive application head to press down and move. When switching the adhesive application path, the moving mechanism drives the adhesive application head to rise and move.

[0040] (5) If at least one of the starting point or ending point of the current adhesive application path 2 falls on the existing adhesive application path 3, then the adhesive application path is adjusted as follows:

[0041] (5-1) When the starting point of the current glue application path 2 falls on the glue application path 3 of the existing glue strip, the moving mechanism drives the glue application head to the starting point of the current glue application path 2. While keeping the glue application head raised, the rotating mechanism drives the glue application head to rotate around different points as the center of the glue application path, so that the glue application head is tangent to or partially overlaps with the glue application path 3 of the existing glue strip. Then, the moving mechanism drives the glue application head to advance along the current glue application path 2 by 0.5 times the glue application width, so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip 1. Then, the moving mechanism drives the glue application head to press down and select different methods to apply glue according to whether the glue application path is a straight line or an arc.

[0042] (5-1-1) When the current glue application path 2 is a straight line, the glue application head rotates at the starting point with one end of the glue application head as the center to adjust the angle so that the glue application head is tangent to or partially overlaps with the existing glue application path 3 of the glue strip; after the moving mechanism drives the glue application head to press down, the glue application head still rotates with this end as the center to apply glue until the midpoint of the glue application head coincides with the midpoint of the current glue application path 2. Then, the moving mechanism drives the glue application head to continue applying glue along the current glue application path 2.

[0043] (5-1-2) When the current glue application path 2 is an arc, the glue application head rotates at the starting point with the midpoint of the glue application head as the center to adjust the angle; after the moving mechanism drives the glue application head to press down, it normally applies glue along the current glue application path 2.

[0044] (5-2) When the end point of the current glue application path 2 falls on the glue application path 3 of the existing glue strip, the rotating mechanism drives the glue application head to rotate with different points as the center, based on the normal glue application, according to whether the glue application path is a straight line or an arc. This makes the glue application head tangent to or partially overlap with the edge of the existing glue strip 1 at a distance of 0.5 times the glue application width from the end point. At the same time, the moving mechanism drives the glue application head to rise and stop the glue application.

[0045] (5-2-1) When the current glue application path 2 is a straight line, when the glue application head applies glue along the current glue application path 2, and one end of the glue application head contacts the edge of the existing glue strip 1 at a distance of 0.5 times the glue application width from the end point, the rotating mechanism drives the glue application head to rotate around this end point as the center to apply glue until the glue application head is tangent to or partially overlaps the edge of the existing glue strip 1 at a distance of 0.5 times the glue application width from the end point. At the same time, the moving mechanism drives the glue application head to rise and stop applying glue.

[0046] (5-2-2) When the current glue application path 2 is an arc, the rotating mechanism drives the glue application head to rotate in advance before reaching the end of the current glue application path 2, so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip 1 at a distance of 0.5 times the glue application width from the end point. At the same time, the moving mechanism drives the glue application head to rise and stop the glue application.

[0047] Because the complete adhesive application path on the fabric consists of some straight adhesive application paths and some curved adhesive application paths with a large curvature, this adhesive application process, during adhesive application, applies adhesive to these paths according to the order of application, and then applies it to the overlapping area 4 of the adhesive strip 1 (e.g., ...). Figure 1 and 3 As shown, without adjusting the preset glue application path, after the glue applicator applies glue according to the preset path, there is an overlapping area 4 in glue strip 1. Adjusting the angle of the glue applicator and the current glue application path (e.g.) Figure 2 and Figure 4 As shown, after adjusting the adhesive application path, the adhesive strip 1 formed by the adhesive applicator no longer overlaps, allowing the applicator to avoid overlapping areas 4 as much as possible at the start or end points. Even if local overlap occurs, the overlapping area 4 is small and will not completely cover the existing adhesive strip, resulting in an excessively thick adhesive strip. At the same time, it minimizes the large blank areas caused by the adjustment. Therefore, in actual adhesive application, this process allows the adhesive applicator to smoothly complete the application of adhesive strip 1 in one application path without overlapping with previous adhesive strips 1, ensuring that the thickness of the adhesive layer on the fabric is equal at all locations. Furthermore, the applied adhesive strip 1 minimizes blank areas at the required application locations, ensuring that the subsequent fabric adheres tightly and is not prone to loosening.

[0048] The above-mentioned division of the areas on the fabric that need to be coated with adhesive, the pre-setting of multiple adhesive application paths and the order of each adhesive application path, and the formation of a CAD electronic diagram with a pre-set order of paths, the adhesive application device applies adhesive according to the electronic diagram; the method of determining whether the start and end points of the current adhesive application path fall on the existing adhesive strip's adhesive application path is to judge from the order of the electronic diagram, or it can be judged visually by using a camera to capture images.

[0049] In step (3), the curved edge of the fabric is also regarded as the existing adhesive strip application path 3. In step (5), the current adhesive application path 2, whose starting point and ending point fall on the curved edge of the fabric, is also adjusted.

[0050] In step (3), the current adhesive path 2, whose middle position falls on the adhesive path 3 of the existing adhesive strip, is divided into two independent adhesive paths, and then it is determined whether the starting point and ending point of the adhesive path fall on the adhesive path 3 of the existing adhesive strip.

[0051] Example 2, an adhesive coating process to avoid adhesive layer overlap, includes the following steps:

[0052] (1) An adhesive applicator is used. The adhesive applicator includes an adhesive applicator head, a rotating mechanism and a moving mechanism. The moving mechanism can drive the adhesive applicator head to rise and fall and move in the horizontal plane. The rotating mechanism can drive the adhesive applicator head to rotate in the horizontal plane.

[0053] (2) Divide the area on the fabric that needs to be coated with glue. A single glue strip 1' is defined as a glue strip that can continuously cover the area to be coated without interruption. The path that the midpoint of the glue head passes through during the single glue strip 1' is defined as the glue path. The order of each preset glue path is divided based on the shortest total movement path of the glue head when completing the coating of the entire fabric according to the glue path.

[0054] (3) Before applying glue, determine whether the starting point and ending point of the current glue application path 2' fall on the existing glue application path 3';

[0055] (4) If the start and end points of the current adhesive application path 2' do not fall on the existing adhesive application path 3', the moving mechanism drives the adhesive application head to the start point of the adhesive application path and applies adhesive to the fabric according to the preset adhesive application path. When applying adhesive, the moving mechanism drives the adhesive application head to press down and move. When switching the adhesive application path, the moving mechanism drives the adhesive application head to rise and move.

[0056] (5) If at least one of the starting point or ending point of the current adhesive application path 2' falls on the existing adhesive application path 3', then adjust the adhesive application path as follows:

[0057] (5-1) When the starting point of the current glue application path 2' falls on the glue application path 3' of the existing glue strip, the moving mechanism drives the glue application head to the starting point of the current glue application path 2'. While keeping the glue application head raised, the rotating mechanism drives the glue application head to rotate around the midpoint of the glue application head, so that the glue application head is tangent to or partially overlaps with the glue application path 3' of the existing glue strip. Then, the moving mechanism drives the glue application head to advance along the current glue application path 2' by a distance of 0.5 times the glue application width, so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip 1'. Then, the moving mechanism drives the glue application head to press down and apply glue along the current glue application path 2'.

[0058] (5-2) When the end point of the current glue application path 2' falls on the existing glue application path 3', on the basis of normal glue application, the rotating mechanism drives the glue application head to rotate around the midpoint of the glue application head, so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip 1' at a distance of 0.5 times the glue application width from the end point. At the same time, the moving mechanism drives the glue application head to rise and stop glue application.

[0059] like Figure 5 As shown, without adjusting the preset glue application path, after the glue applicator applies glue according to the preset glue application path, there is an overlapping area 4' in the glue strip 1'. The difference between this embodiment and Embodiment 1 is that: when the current glue application path 2' is a straight line, after adjusting the angle of the glue applicator and the current glue application path 2' using the method of this embodiment, after the glue applicator applies glue according to the adjusted current glue application path 2', the state of the glue strip 1' is as follows. Figure 6 As shown.

Claims

1. A coating process to avoid adhesive layer overlap, characterized in that... Includes the following steps: (1) An adhesive applicator is used. The adhesive applicator includes an adhesive applicator head, a rotating mechanism and a moving mechanism. The moving mechanism can drive the adhesive applicator head to rise and fall and move in the horizontal plane. The rotating mechanism can drive the adhesive applicator head to rotate in the horizontal plane. (2) Divide the area on the fabric that needs to be coated with glue, and pre-set multiple glue application paths and the order of each glue application path; (3) Before applying glue, first determine whether the start and end points of the current glue application path fall on the existing glue application path; divide the current glue application path whose middle position falls on the existing glue application path into two independent glue application paths, and then determine whether the start and end points of the glue application path fall on the existing glue application path. (4) If the start and end points of the current adhesive application path do not fall on the existing adhesive strip application path, the moving mechanism drives the adhesive application head to the start point of the adhesive application path and applies adhesive to the fabric according to the preset adhesive application path to form an adhesive strip. When applying adhesive, the moving mechanism drives the adhesive application head to press down and move. When switching the adhesive application path, the moving mechanism drives the adhesive application head to rise and move. (5) If at least one of the start and end points of the current adhesive application path falls on the existing adhesive strip's application path, then adjust the adhesive application path as follows: (5-1) When the starting point of the current glue application path falls on the glue application path of the existing glue strip, the moving mechanism drives the glue application head to the starting point of the current glue application path. While keeping the glue application head raised, the rotating mechanism drives the glue application head to rotate so that the glue application head is tangent to or partially overlaps with the glue application path of the existing glue strip. Then, the moving mechanism drives the glue application head to advance along the current glue application path by a distance of 0.5 times the glue application width so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip. Then, the moving mechanism drives the glue application head to press down and apply glue normally to form a glue strip. (5-2) When the end point of the current glue application path falls on the glue application path of the existing glue strip, on the basis of normal glue application, the rotating mechanism drives the glue application head to rotate, so that the glue application head is tangent to or partially overlaps with the edge of the existing glue strip at a distance of 0.5 times the glue application width from the end point to form a glue strip. At the same time, the moving mechanism drives the glue application head to rise and stop glue application.

2. The adhesive coating process for avoiding adhesive layer overlap as described in claim 1, characterized in that: In step (2), the method of dividing the glue application position and presetting multiple glue application paths is to define a single glue strip application as one application that can continuously cover the required glue application position without interruption, and the path traversed by the midpoint of the glue application head during a single glue strip application is defined as the glue application path.

3. The adhesive coating process for avoiding adhesive layer overlap as described in claim 1, characterized in that: The determination of the order of each adhesive application path in step (2) is based on the principle that the total movement path of the adhesive application head is the shortest when completing the coating of the entire piece of fabric. The order of each preset adhesive application path is determined accordingly.

4. The adhesive coating process for avoiding adhesive layer overlap as described in claim 1, characterized in that: In step (2), an electronic template is set to control the movement of the glue applicator head. The electronic template has multiple glue applicator paths preset and the order of each glue applicator path preset.

5. The adhesive coating process for avoiding adhesive layer overlap as described in claim 1, characterized in that: In step (5-1), when the glue applicator rotates and adjusts its angle at the starting point with one end of the glue applicator as the center, after the moving mechanism drives the glue applicator to press down, the glue applicator first rotates and applies glue with this end as the center until the midpoint of the glue applicator coincides with the midpoint of the current glue application path. Then, the moving mechanism drives the glue applicator to continue applying glue along the current glue application path.

6. The adhesive coating process for avoiding adhesive layer overlap as described in claim 1, characterized in that: In step (5-1), when the glue applicator rotates and adjusts its angle at the starting point with the midpoint of the glue applicator as the center, the moving mechanism normally applies glue along the current glue application path after driving the glue applicator to press down.

7. The adhesive coating process for avoiding adhesive layer overlap as described in claim 1, characterized in that: In step (5-2), when the glue applicator is applying glue along the current glue application path, and one end of the glue applicator contacts the edge of the existing glue strip at a distance of 0.5 times the glue application width from the end point, the rotating mechanism drives the glue applicator to rotate around this end point to apply glue, until the glue applicator is tangent to or partially overlaps the edge of the existing glue strip at a distance of 0.5 times the glue application width from the end point.

8. The adhesive coating process for avoiding adhesive layer overlap as described in claim 1, characterized in that: In step (3), the curved edge of the fabric is also regarded as the glue application path of the existing adhesive strip. In step (5), the current glue application path with the starting point and ending point falling on the curved edge of the fabric is also adjusted.

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