A traceless deviation correction laminating method, device and system of flexible material

Abstract

This invention relates to the field of flexible material processing technology, and more particularly to a non-marking correction and bonding method, apparatus, and system for flexible materials. The method includes an S01 image capture step, an S02 calculation step, an S03 bonding motion step, and an S04 correction motion step. The apparatus includes a support unit, an extraction unit for puncturing and extracting the flexible material, a correction unit, and a pressing and fastening unit that bondes with the flexible material. This correction and bonding method uses a pressing-type fastening structure to provide fastening for the flexible material during the correction action, replacing the fastening function of the original puncture unit. This avoids material damage during the correction process and improves product quality.

Description

Technical Field

[0001] This application is a divisional application of Chinese invention patent application number 202210715615.7, filed on June 23, 2022, entitled "A Seamless Correction and Overlapping Device, System and Correction Method for Flexible Materials". The present invention relates to the field of flexible material processing technology, and in particular to a seamless correction and overlapping method, device and system for flexible materials. Technical Background

[0002] Flexible materials, such as sponge, latex cotton, woven fabric, and rubber, can be processed into composite products. For example, a multifunctional composite mat disclosed in Chinese patent document CN201185778Y is composed of a base, a sponge layer, and multiple layers with different functions. In the production process of the composite mat, each layer of flexible material needs to be stacked one by one. In particular, the position and angle of the stacking are required to be correct.

[0003] However, in actual production processes, flexible materials often exhibit irregular deformations ranging from several millimeters to tens of millimeters due to factors such as their own manufacturing process, their own physicochemical properties, the influence of environmental temperature and humidity, the length of time for releasing internal stress during foaming, and the influence of external forces. These deformations require correction during the stacking process.

[0004] Therefore, the applicant disclosed a system and method for handling and correcting elastic materials in the prior Chinese invention patent with authorization announcement number CN 110407010 B. The invention uses the needle (73) of the puncture unit (7) to puncture the material to extract the material and perform a correction operation on the material based on this.

[0005] This operation mode leaves needle marks on the material surface during the correction process. These needle marks are easily formed into obvious correction marks under the pulling action of correction. These correction marks significantly reduce the quality of composite material products and also easily lead to a poor sensory experience. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the inventors of this application have made improvements to the prior art of the prior application. One purpose is to provide a seamless correction and bonding device for flexible materials, another purpose is to provide a correction and bonding system using the device, and a third purpose is to provide a specific correction and bonding method.

[0007] The three objectives of the invention are explained below: First, a seamless correction and bonding device for flexible materials includes a support portion, which provides a foundation for supporting various components; In addition, it also includes: An extraction part is disposed directly or indirectly on the support part, and the extraction part is combined with a flexible material by means of puncture. The correction unit is disposed on the bearing unit and is used to drive and control the correction action. The correction unit includes a correction power source for driving the correction action, a correction track for standardizing the correction action trajectory, a correction control unit for controlling the direction and amplitude of the correction action, and a correction execution end for performing the correction action. A fastening part is disposed on the correction execution end and is used to fasten at least a portion of the flexible material to cooperate with the correction action of the correction part. The fastening part is combined with the flexible material by pressing.

[0008] In the previously applied technical solution, the needle punching method can combine materials and achieve the purpose of lifting and transferring. The needle punching itself only leaves relatively small needle holes on the material, which is only used for extraction and does not leave obvious traces on the material itself. However, if a correction action is added on this basis, it will be very different. The pulling during correction will enlarge or even tear the needle holes, forming more obvious correction marks and affecting product quality.

[0009] In view of this, the inventors retained the material extraction function of the original piercing unit, and used a different pressing fastening structure to provide fastening of the flexible material during the correction action, replacing the fastening function of the original piercing unit. The pressing fastening structure does not cause physical damage to the flexible material, but generates friction through a sufficiently large pressing force to fasten the flexible material, which can prevent the material from being damaged during the correction process, improve product quality, and bring a better sensory experience.

[0010] Meanwhile, in order to increase the integration of components, the extraction unit is also located on the correction execution end.

[0011] The flexible material is usually in a near-rectangular shape. In this case, the correction execution end includes a long side execution end that acts on the longer side of the flexible material, a short side execution end that acts on the shorter side of the flexible material, and a corner execution end that acts on the area where the two sides of the flexible material intersect. The long-side execution end and the short-side execution end are bidirectional moving execution ends, which only need to perform linear correction actions. However, the corner execution end, because it is located in the corner, needs to adapt to correction actions in both the long-side and short-side directions. Therefore, it is usually set as a four-way moving execution end, which can perform correction actions in a certain range of planes by moving forward and backward and left and right.

[0012] Preferably, the extraction unit extracts the flexible material by piercing it with an obliquely inserted needle.

[0013] However, simply considering the oblique insertion of the needle is insufficient. Through research, the inventor began to consider further improving the stability of flexible material extraction without increasing the number of needles. The core idea is to concentrate the scattered puncture sites and increase the needle density in the puncture area as much as possible, rather than increasing the number of needles. Based on the above concept, several needles with parallel and adjacent running trajectories are arranged to form a puncture needle group. The extraction part is inserted into the flexible material by two staggered puncture needle groups to achieve the extraction action of the flexible material. In this way, the puncture points of the needles are concentrated at the intersection of the two puncture needle groups. The relatively dense puncture positions make the flexible material more stable during the extraction process. Meanwhile, the two staggered puncture needle groups mutually restrict the displacement of the flexible material on either puncture needle group, further enhancing the stability of the flexible material during the extraction process.

[0014] Preferably, the design adopts a biomimetic approach, simulating the action of manually fastening flexible materials, and the fastening part includes: A swing fastener that simulates the appearance of four fingers (index to little finger) of a human hand held together. The swing fastener is hinged to the fastening part and reaches the position of pressing the flexible material by swinging. A fastening power source is used to drive the swinging motion of the swinging fastener; The anti-slip part, which simulates the fingertips of the four fingers from the index finger to the little finger of a human hand when they are put together, is set at one end of the swing fastener that presses against the flexible material, in order to prevent the flexible material from slipping off after being fastened.

[0015] More specifically, the swing fastener consists of two fastening swing arms on both sides and a fastening strip connecting the two fastening swing arms, and the anti-slip part is formed on the end face of the fastening strip pressed against the flexible material.

[0016] In some working conditions, the surface of composite flexible material products is undulating rather than a flat plane. The inventors discovered that when extracting flexible materials under such conditions, the protruding parts on the undulating material surface are pressed and deformed by the extraction part. There is internal stress inside the material that recovers from deformation, and this internal stress will cause the needle hole formed by puncture to tend to enlarge or tear, sometimes making the puncture mark more obvious, which will also have an adverse effect on the quality of the product. Furthermore, when using the previous technical solution to lift the undulating material, it is not possible to ensure that all lifting parts on the same plane are in contact with the material surface, resulting in defects such as some areas being unable to be lifted or lifting failure. If high pressure is used to press the material, phenomena such as deformation and adhesion of the flexible material are likely to occur.

[0017] Therefore, the inventors designed and provided a sliding adjustment part that conforms to the undulation direction of the flexible material and is movable on the correction execution end, and the extraction part is provided on the correction execution end through the sliding adjustment part; The sliding adjustment part includes several sliding structures. Each sliding structure consists of a sleeve and a sliding rod that is slidably disposed in the sleeve. The end of the sliding rod located in the sleeve and the end of the sliding rod that is output on the sleeve together form a stop / limit structure. The stop structure is used to limit the sliding range of the sliding rod. With this design, when the extraction part encounters a raised portion on the undulating material surface, it will automatically slide upward, greatly reducing the pressure on the raised portion. This avoids internal stress caused by the recovery deformation inside the material, preventing the pinhole from enlarging or tearing, and improving the quality of the product.

[0018] In addition, the sliding adjustment part can adaptively cover the surface of undulating materials, improving the stability and reliability of the extraction action.

[0019] To accommodate the position of the flexible material extracted by the extraction unit, the fastening part is also mounted on the correction execution end via the sliding adjustment part.

[0020] Secondly, a seamless correction and bonding system for flexible materials includes the seamless correction and bonding device described in any of the above technical solutions. It also includes: A workbench, at least for placing flexible materials and flexible substrates; An image recognition device is used to capture images of the flexible material and the flexible substrate; A motion robot is used to move the seamless correction and bonding device to the position for extracting the flexible material, and to move the seamless correction and bonding device to the position for covering the flexible material onto the flexible substrate; The correction control unit of the seamless correction and bonding device is communicatively connected to the image recognition device, receives the image information collected by the image recognition device, and generates control commands based on the image information to control the movement of the motion robot and the correction action on the flexible material.

[0021] Finally, a seamless alignment and bonding method for flexible materials includes the following steps: S01, Image Capture Step: The image recognition device captures images of the flexible material and flexible substrate and transmits them to the correction control unit; S02, Calculation steps: The correction control unit calculates the adjustment data of the flexible material and the flexible substrate based on the captured image, and generates motion control data based on the adjustment data; S03, Overlay motion step: The correction control unit controls the motion robot to drive the extraction part of the traceless correction device to pick up the flexible material and move it to cover the flexible substrate with the flexible material for overlay; S04, Correction Movement Steps: The correction control unit controls the fastening part on the seamless correction bonding device to be fastened to at least part of the flexible material, removes the puncture relationship between the extraction part and the flexible material, and then adjusts and corrects the outer contour of the flexible material.

[0022] In summary, the technical solution described in this invention has the following main beneficial effects: ①The correction and bonding device described in this application uses a pressing fastening structure to provide fastening of flexible materials during correction action, replacing the fastening function of the original piercing unit. This can prevent the material from being damaged during the correction process, improve product quality, and bring a better sensory experience. ② The sliding adjustment part allows the extraction part to automatically slide upward when it encounters a raised part on the undulating material surface, which greatly reduces the pressure on the raised part and avoids the enlargement / tearing of pinholes. At the same time, it can also enhance the stability and reliability of the extraction action to improve product quality.

[0023] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0024] Figure 1 A top view of the seamless alignment device; Figure 2 for Figure 1 Enlarged view of area A; Figure 3 for Figure 1 Enlarged view of area B; Figure 4 for Figure 1 Enlarged view of area C; Figure 5 This is a schematic diagram of the side structure of the non-marking correction device, in which the extracted flexible material has an undulating, non-flat surface. Figure 6 A schematic diagram of the correction section with an extraction part and a fastening part; Figure 7 This is a schematic diagram of the side structure of a partial correction end with an extraction part and a fastening part, which includes schematic diagrams of different states of the swing fastener pressing / releasing the flexible material; Figure 8 A top view of the corrective end with an extraction section and a fastening section; Figure 9 A three-dimensional structural diagram of a partial correction end with an extraction part and a fastening part; Figure 10 A schematic diagram of the working state of a non-marking correction system for flexible materials; Figure 11 This is a schematic diagram of a composite structure of two layers of flexible materials that have not been corrected, and there are obvious gaps and defects at the joint. Figure 12 This is a schematic diagram of the composite structure of the upper and lower flexible materials after correction, showing that the joints are tightly bonded and without defects. In the figure, 1 - Seamless correction and bonding device; 1-1-Bearing component; 1-2-Extraction section, 1-21-Needle; 1-3-Correction section, 1-31-Correction power source, 1-32-Correction track, 1-33-Correction control unit, 1-34-Correction execution end, 1-341-Long side execution end, 1-342-Short side execution end, 1-343-Correction end, 1-34b-Sliding adjustment section, 1-34b1-Sleeve, 1-34b2-Slide rod; 1-4-Fastening part, 1-41-Swing fastener, 1-411-Fastening swing arm, 1-412-Fastening pressure strip, 1-42-Fastening power source, 1-43-Anti-slip part; 2-Workbench, 3-Image recognition device, 4-Motion robot; a- Flexible material, b- Flexible substrate. Detailed Implementation

[0025] The core technical problem faced by the technical solution of this application embodiment stems from the shortcomings of the quality of composite material products in the prior art. These shortcomings are mainly reflected in the impact of significant correction marks on the performance and quality of composite products.

[0026] Therefore, avoiding the occurrence of the above-mentioned defects has become a technical problem that the inventors urgently need to solve.

[0027] The present invention will be further explained below with reference to the embodiments and accompanying drawings. This application relates to the innovation of the technical solution of the applicant's prior application CN 110407010 B Chinese invention patent. The original structures and control methods in the prior application and the corresponding parts of the embodiments of this application will not be repeated as much as possible to avoid redundancy. Furthermore, the following descriptions are merely some embodiments of the present invention and are not intended to limit the scope of the present invention: As part of this application Example 1 : Please refer to the attached image. Figures 1-7 A seamless correction bonding device for flexible materials exists as a correction functional component of a correction system.

[0028] In the prior application CN 110407010 B, the applicant used a needle-punching method for correction. The pulling during correction would enlarge or even tear the needle hole, forming obvious correction marks and affecting product quality. In view of this, the inventor retained the material extraction function of the original puncture unit and added an additional compression fastening structure to provide fastening of the flexible material during the correction action, replacing the fastening function of the original puncture unit. The compression fastening structure does not cause physical damage to the flexible material, but rather uses a sufficiently large compression force to generate friction to fasten the flexible material, which can prevent the material from being damaged during the correction process, improve product quality, ensure product performance, and bring a better sensory experience.

[0029] Specifically, the correction and bonding device described in this embodiment includes a support part 1-1, which includes a closed annular frame and a plurality of rod-shaped support members arranged alternately within the frame. The frame is provided with several correction units 1-3 for driving and controlling the correction action. Each correction unit 1-3 includes a correction power source 1-31 for driving the correction action, a correction track 1-32 for standardizing the correction action trajectory, and a correction execution end 1-34 for performing the correction action. The correction units 1-3 also share a correction control unit 1-33 for controlling the direction and amplitude of the correction action. The correction execution end 1-34 is equipped with both an extraction part 1-2 and a fastening part 1-4; The extraction unit 1-3 extracts the flexible material a by piercing it with staggered needles 1-21. For detailed structures of the extraction unit 1-2 and the correction unit 1-3, please refer to the technical solution in the applicant's prior application CN 110407010 B. The fastening part 1-4 includes a hinged swing fastener 1-41. The swing fastener 1-41 is driven by the fastening power source 1-42 to generate a swinging motion and presses the edge of the flexible material a through the anti-slip part 1-43. Specifically, the fastening part in this embodiment adopts a biomimetic design to simulate the action of manually fastening the flexible material a. The swing fastener 1-41 consists of fastening swing arms 1-411 on both sides and fastening pressure strip 1-412 connected between the two fastening swing arms 1-411. The fastening swing arms 1-411 are set as curved arms to simulate the appearance of the four fingers from the index finger to the little finger of a human hand being put together and bent. The anti-slip part 1-43 is formed on the end face of the flexible material a pressed by the fastening pressure strip 1-412 to simulate the fingertip part of the four fingers from the index finger to the little finger of a human hand after being put together. In order to enhance the firmness of the pressing, the anti-slip part 1-43 is usually pressed with the flexible fabric a with a cone-shaped structure. The driving form of the swing fasteners 1-41 is not limited to swing, four-bar linkage and other structures.

[0030] Please refer to Figure 10 The web-correcting and bonding system using the seamless web-correcting and bonding device 1 described in this embodiment further includes: Workbench 2 is divided into two parts, which are used to place flexible material a and flexible substrate b respectively; Image recognition device 3 is used to capture images of flexible material a and flexible substrate b; The motion robot 4 is used to drive the seamless correction and bonding device 1 to the position for extracting the flexible material a, and to extract the flexible material a; the motion robot 4 is also used to drive the seamless correction and bonding device 1 to the position for covering the flexible material a onto the flexible substrate b. Among them, the correction control unit 1-33 of the seamless correction and bonding device 1 is connected to the image recognition device 3 for communication, receives the image information collected by the image recognition device 3, and generates control commands based on the image information to control the movement of the motion robot 4 and the correction action of the flexible material a.

[0031] The web correction and overlay method of the seamless web correction system described in this embodiment includes the following steps: S01, Image capture step: Image recognition device 3 captures images of flexible material a and flexible substrate b and transmits them to the correction control unit 1-33; S02, Calculation steps: The correction control unit 1-33 calculates the adjustment data of flexible material a and flexible substrate b based on the captured image, and generates motion control data based on the adjustment data; S03, Composite motion steps: The correction control unit 1-33 controls the motion robot 4 to drive the extraction part 1-2 of the traceless correction device 1 to pick up the flexible material a and move it to cover the flexible substrate b for composite. S04, Correction Movement Steps: The correction control unit 1-33 controls the fastening part 1-4 on the non-marking correction bonding device 1 to be fastened to at least part of the flexible material a, removes the piercing relationship between the extraction part 1-2 and the flexible material a, and then adjusts and corrects the outer contour of the flexible material a.

[0032] As part of this application Example 2 : Please refer to the attached image. Figures 1 to 4 For a flexible material a that is close to a rectangle, the seamless correction and bonding device 1 described in this embodiment, based on the technical solution of embodiment 1, sets the bearing part 1-1 to be approximately rectangular, and sets the correction execution end 1-34 to include a long side execution end 1-341 that acts on the longer side of the flexible material a, a short side execution end 1-342 that acts on the shorter side of the flexible material a, and a corner execution end 1-343 that acts on the area where the two sides of the flexible material a intersect. Specifically, both the long-side execution end 1-341 and the short-side execution end 1-342 are bidirectional moving execution ends, which only need to perform linear correction actions. The working principle of bidirectional movement can be found in the relevant content of the bidirectional correction device in the technical solution of the applicant's earlier application CN 110407010 B. Since the corner actuator 1-343 is located in a corner, it needs to adapt to both the long side and short side correction actions. Therefore, it is set as a four-way moving actuator, which can perform correction actions within a certain range of planes by moving forward and backward and left and right. The working principle of four-way movement can be found in the relevant content of the four-way correction device in the technical solution of the applicant's prior application CN110407010 B.

[0033] The corresponding correction and bonding system is a system that includes the correction device of this embodiment.

[0034] The corresponding correction and overlay method is described in Example 1.

[0035] As part of this application Example 3 : Please refer to the attached image. Figures 5 to 7 For flexible materials with undulating surfaces, the inventors discovered that if a rigid extraction structure is used, the material cannot be reliably grasped when unpacking. Furthermore, the protruding parts on the undulating material surface are pressed and deformed by the extraction part 1-2, thereby generating internal stress to restore the material's deformation. This causes the puncture holes formed by the puncture to enlarge or tear, making the puncture marks more obvious, which also has an adverse effect on the quality of the product. Therefore, the inventors devised a design concept to set a suspended floating sliding adjustment part 1-34b between the correction execution end 1-34 and the extraction part 1-2 in order to improve the above problems.

[0036] Specifically, the seamless correction and bonding device 1 described in this embodiment adds a sliding adjustment part 1-34b to the technical solution of embodiment 1; The sliding adjustment part 1-34b adopts a floating suspension design concept and is set on the correction execution end 1-34. It can automatically adapt to the undulation direction of the flexible material a and float (slide). The extraction part 1-2 is set between the sliding adjustment part 1-34b and the flexible fabric a. Specifically, the sliding adjustment part 1-34b includes several sliding structures. Each sliding structure consists of a sleeve 1-34b1 and a sliding rod 1-34b2 slidably disposed inside the sleeve 1-34b1. The end of the sliding rod 1-34b2 located inside the sleeve 1-34b1 and the end of the sliding rod 1-34b2 on the sleeve 1-34b1 together form a stop structure, which is used to limit the sliding range of the sliding rod 1-34b2. A floating suspension sensor can also be provided on the sliding adjustment part 1-34b. After all the sliding adjustment parts 1-34b come into contact with the undulating surface of the flexible material a, the floating suspension sensor is triggered. At this time, the correction control unit 1-33 sends a puncture command to the needle assembly of the extraction part 1-2 to complete the material extraction action. Meanwhile, in order to match the position of the flexible material a extracted by the extraction unit 1-2, the fastening unit 1-4 is also provided on the correction execution end 1-34 via the sliding adjustment unit 1-34b.

[0037] The corresponding correction and bonding system is a system that includes the correction device of this embodiment.

[0038] The corresponding correction and overlay method is described in Example 1.

[0039] As part of this application Example 4 : Please refer to the attached image. Figures 7 to 9 Based on the technical solution of Example 1, the inventors realized that: Simply considering the oblique insertion of needles 1-21 has its shortcomings. The shortcomings are reflected in the fact that the flexible material a in the extraction process is not stable enough and is relatively easy to be displaced, which in turn affects the quality of subsequent material lamination. In view of this, the inventors began to consider how to further improve the stability of flexible material a extraction without increasing the number of needles. The core idea of ​​the solution is to concentrate the scattered puncture sites and increase the needle density in the puncture area as much as possible, rather than increasing the number of needles. Based on the above concept, a group of needles 1-21 with parallel running trajectories and adjacent to each other are set up to form a puncture needle group. The extraction part 1-2 is used to puncture the flexible material a through two staggered puncture needle groups to achieve the extraction action. In this way, the puncture sites of needles 1-21 are concentrated at the intersection of the two puncture needle groups. The relatively dense puncture sites make the flexible material a more stable during the extraction process. Meanwhile, the two staggered puncture needle groups mutually restrict the displacement of flexible material a on either puncture needle group, further enhancing the stability of flexible material a during the extraction process.

[0040] Specifically, the traceless correction and overlay device 1 described in this embodiment, based on the technical solution of embodiment 1, defines the puncture trajectories of two adjacent puncture needle groups to be intersected on the panel of the extraction part 1-2, and controls the puncture and retraction actions of the needle 1-21 in the puncture needle group by driving the cylinder through the correction control unit 1-33.

[0041] The corresponding correction and bonding system is a system that includes the correction device of this embodiment.

[0042] The corresponding correction and overlay method is described in Example 1.

[0043] The driving methods mentioned in the embodiments of this application include, but are not limited to, common driving forms such as electric, pneumatic, and electromagnetic; the guiding methods are not limited to common guiding methods such as guide rails and linear shafts; and the feedback methods of sensors are not limited to common feedback methods such as through-beam, induction, and micro-switches.

[0044] In the description of this specification, the references to terms such as "embodiment," "basic embodiment," "preferred embodiment," "other embodiment," "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.

[0045] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0046] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A seamless alignment and bonding device for flexible materials, characterized in that: The seamless correction and bonding device includes: The support part (1-1) is used to provide a foundation for supporting the various components; An extraction unit (1-2) is disposed directly or indirectly on the support unit (1-1), and the extraction unit (1-2) is used to extract flexible material (a). The correction unit (1-3) is disposed on the bearing unit (1-1) and is used to drive and control the correction action. The correction unit (1-3) includes a correction power source (1-31) for driving the correction action, a correction track (1-32) for standardizing the correction action trajectory, a correction control unit (1-33) for controlling the direction and amplitude of the correction action, and a correction execution end (1-34) for performing the correction action. Fastening part (1-4) is disposed on the correction execution end (1-34) and is used to fasten at least part of the flexible material (a) to cooperate with the correction action of the correction part (1-3); The extraction part (1-2) is also provided on the correction execution end (1-34). The extraction part (1-2) realizes the extraction action of the flexible material (a) by piercing the flexible material (a) with a needle (1-21) inserted at an angle. A group of needles (1-21) whose running trajectories are set in parallel and adjacent constitutes a puncture needle group; The extraction unit (1-2) extracts the flexible material (a) by piercing the flexible material (a) with staggered puncture needles. The puncture sites of the needles (1-21) are concentrated at the intersection of the two puncture needle groups. The correction execution end (1-34) is provided with a sliding adjustment part (1-34b) that is movable and conforms to the undulation direction of the flexible material (a), and the extraction part (1-2) is provided on the correction execution end (1-34) through the sliding adjustment part (1-34b). The sliding adjustment part (1-34b) includes several sliding structures. Each sliding structure consists of a sleeve (1-34b1) and a sliding rod (1-34b2) slidably disposed inside the sleeve (1-34b1). The end of the sliding rod (1-34b2) located inside the sleeve (1-34b1) and the end of the sliding rod (1-34b2) on the sleeve (1-34b1) together form a stop structure. The stop structure is used to limit the sliding range of the sliding rod (1-34b2). The seamless alignment and bonding device uses the following seamless alignment and bonding method: It includes the following steps: S01, Image capture steps: The image recognition device (3) captures images of the flexible material (a) and the flexible substrate (b) and transmits them to the correction control unit (1-33). S02, Calculation steps: The correction control unit (1-33) calculates the adjustment data of the flexible material (a) and the flexible substrate (b) based on the captured image, and generates motion control data based on the adjustment data; S03, Overlay motion steps: The correction control unit (1-33) controls the motion robot (4) to drive the extraction part (1-2) of the non-marking correction overlay device (1) to pick up the flexible material (a) and move it to cover the flexible substrate (b) with the flexible material (a) for overlay. The extraction part (1-2) includes a needle (1-21) and is combined with a flexible material (a) by means of puncture. S04, Correction Movement Steps: The correction control unit (1-33) controls the fastening part (1-4) on the traceless correction bonding device (1) to be fastened to at least part of the flexible material (a), removes the piercing relationship between the extraction part (1-2) and the flexible material (a), and then adjusts and corrects the outer contour of the flexible material (a). The fastening part (1-4) is combined with the flexible material (a) by compression.

2. The seamless correction and bonding device according to claim 1, characterized in that: The correction execution end (1-34) includes a long side execution end (1-341) that acts on the longer side of the flexible material (a), a short side execution end (1-342) that acts on the shorter side of the flexible material (a), and a corner execution end (1-343) that acts on the area where the two sides of the flexible material (a) intersect. Among them, the long side execution end (1-341) and the short side execution end (1-342) are bidirectional moving execution ends, and the corner execution end (1-343) is a four-directional moving execution end.

3. The seamless correction and bonding device according to claim 1, characterized in that: The fastening part (1-4) includes: A swing fastener (1-41) is hinged to the fastener (1-4) and swings to reach the position where the flexible material (a) is pressed. A fastening power source (1-42) is used to drive the swinging motion of the swinging fastener (1-41); An anti-slip part (1-43) is provided at one end of the swing fastener (1-41) pressing the flexible material (a) to prevent the flexible material (a) from slipping after being fastened.

4. The seamless correction and bonding device according to claim 3, characterized in that: The swing fastener (1-41) consists of two fastening swing arms (1-411) on both sides and a fastening strip (1-412) connected between the two fastening swing arms (1-411). The anti-slip part (1-43) is formed on the end face of the fastening strip (1-412) pressed against the flexible material (a).

5. A seamless alignment and bonding system for flexible materials, characterized in that: Includes: The seamless correction and bonding device (1) as described in any one of claims 1-4; A workbench (2) is used to place at least the flexible material (a) and the flexible substrate (b); Image recognition device (3) is used to capture images of the flexible material (a) and the flexible substrate (b); The motion robot (4) is used to move the seamless correction and bonding device (1) to the position of extracting the flexible material (a) and to move the seamless correction and bonding device (1) to the position of covering the flexible material (a) onto the flexible substrate (b). The correction control unit (1-33) of the seamless correction bonding device (1) is connected to the image recognition device (3) for communication, receives the image information collected by the image recognition device (3), and generates control commands based on the image information to control the movement of the motion robot (4) and the correction action of the flexible material (a).

Images