A composite device of a base fabric

Abstract

A kind of composite device of base cloth, including mounting vertical plate fixedly installed in predetermined position, at least four cloth placement supply frame, with the corresponding arrangement of several location correction components of supply frame, gluing component, composite component and winding frame, the supply frame and winding frame are respectively arranged in the position of mounting vertical plate both sides and rotatably connected with mounting vertical plate cooperation, base cloth is first completed after gluing by gluing component gluing port position after error correction calibration position, enters the top of composite frame, two elastic cloth and magic tape after error correction calibration position are completed with base cloth in the top of composite frame composite area Pre-composite, composite pressure strip after heating is in contact with the surface of elastic cloth and carries out the composite of composite area, the winding frame is cooperated to pull cloth and complete the winding of base cloth after composite in composite component.This design has the advantages of being able to carry out standardization modular production, the flat base cloth produced and low reject rate.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric processing, and more specifically to a composite device for laminating base fabric materials to form a base fabric with hooked nonwoven fabric. Background Technology

[0002] Currently, common nonwoven fabric base fabrics with hooks are typically made by fixing multiple complete, hook-faced Velcro strips at intervals onto a single, elastic nonwoven base fabric. Then, the entire nonwoven base fabric is simultaneously or sequentially slit at multiple locations to produce several strips of the same or different sizes. The hook face of the slit nonwoven base fabric is usually located in the center, and a nearly inelastic transition section is machined between the hook face and the base fabric on both sides. This prevents the elastic base fabric from losing its elasticity after prolonged stretching, which could lead to the base fabric loosening and curling up from the hook face. This processing method, in actual production... Generally, the process requires two steps: fixing the hook and loop fasteners and slitting. The main problem in these two steps is that it is difficult to ensure that the bottom of the entire nonwoven fabric is completely flat during the actual feeding process. This can cause the hook and loop fasteners to be misaligned or even overlap with multiple layers of the base fabric due to the unevenness of the base fabric. Consequently, after slitting, the surface of the cut base fabric will be uneven and twisted. In severe cases, a significant number of defective products may be produced. In actual production, if even one base fabric has a defective part, the entire base fabric is at risk of becoming waste, and production costs will increase sharply. Summary of the Invention

[0003] The purpose of this invention is to provide a composite device that can perform standardized and modular production, producing base fabrics with flat surfaces and low defect rates.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a base fabric composite device, comprising an installation vertical plate fixedly installed at a predetermined position, at least four feed racks on which fabric is placed, a plurality of alignment components corresponding to the feed racks, an adhesive application component, a composite component, and a winding rack. The feed racks and winding racks are respectively located on both sides of the installation vertical plate and are rotatably connected to the installation vertical plate. The feed racks include a base fabric feed rack, a Velcro feed rack, and two elastic fabric feed racks. The base fabric feed racks are wound with a complete roll of base fabric. The free end of the base fabric enters the composite component after being corrected and aligned by the alignment components. The elastic fabric feeder is wound with a fully wound roll of elastic fabric. After the free end of the elastic fabric is aligned and corrected by the alignment component, it enters the two sides of the base fabric and partially overlaps with them. The overlapping portion of the elastic fabric and the base fabric forms a composite area. An adhesive area for hook and loop fasteners is formed between the adjacent sides of the two elastic fabrics and the upper surface of the base fabric. The hook and loop fastener feeder is wound with a fully wound roll of hook and loop fasteners. The gluing assembly and the composite assembly are respectively located below the center of the mounting plate and are fixedly connected to the mounting plate. The gluing assembly includes a gluing seat, a glue inlet tube, and a glue pusher. The gluing seat has a glue inlet facing the hook and loop fastener side. The adhesive feeding seat is fixedly connected to the mounting plate. An adhesive feeding cavity is provided within the adhesive feeding seat. One end of the adhesive pusher extends into the adhesive feeding cavity, and the other end is driven by a drive motor to reciprocate. The end of the adhesive feeding cavity away from the adhesive pusher is connected to the adhesive feeding port. One end of the adhesive inlet pipe extends into the adhesive feeding seat and communicates with the adhesive feeding cavity, while the other end is connected to a glue supply tank whose flow rate is controlled by a metering pump. The composite assembly includes a composite frame, a composite platform, and a composite roller. The composite frame is fixedly connected to the mounting plate and located between the adhesive feeding assembly and the winding frame. The composite platform is fixedly installed within the composite frame and has a composite area at its top. The composite roller is driven by a motor to rise and fall and is rotatably mounted on the composite platform. On the upper part of the composite platform, a composite pressure strip is fixedly provided circumferentially on the composite roller corresponding to the composite area of ​​the elastic fabric and the base fabric. A heating element connected to the circuit is fixedly installed inside the composite pressure strip. The heating element uniformly heats the contact surface between the composite pressure strip and the elastic fabric. After the base fabric is corrected and calibrated, it is first glued through the glue port of the glue application component and then enters the top of the composite platform. After the correction and calibration, the two elastic fabrics and the Velcro are pre-composite with the base fabric in the composite area at the top of the composite platform. The heated composite pressure strip contacts the surface of the elastic fabric and performs the composite area bonding. The winding frame pulls the fabric and completes the winding of the base fabric after bonding in the composite component.

[0005] Furthermore, the path along which the base fabric is conveyed from the base fabric feeder to the composite assembly is equipped with multiple positioning components and guiding components. The guiding components include cylindrical guide rollers and pressing rollers with counterweight frames. The guide rollers are driven by a motor to rotate and control the guiding direction of the base fabric. The pressing rollers press against the guide roller's discharge position to control the guide roller's discharge speed. Similarly, the path along which the hook and loop fastener is conveyed from the hook and loop fastener feeder to the composite assembly is equipped with multiple positioning components and guiding components. The guiding components include cylindrical guide rollers and... A pressing roller with a counterweight frame is included. The guide roller is driven by a motor to rotate and control the guiding direction of the base fabric. The pressing roller presses against the guide roller's discharge position to control the guide roller's discharge speed. Multiple positioning components and guiding components are provided on the path from the elastic fabric feeder to the composite assembly. The guiding component includes a cylindrical guide roller and a pressing roller with a counterweight frame. The guide roller is driven by a motor to rotate and control the guiding direction of the base fabric. The pressing roller presses against the guide roller's discharge position to control the guide roller's discharge speed.

[0006] Furthermore, it also includes a first cooling roller and a second cooling roller. The first cooling roller is located between the gluing assembly and the composite assembly and is driven by a motor to rotate at a constant speed. The base fabric is glued by the gluing assembly and then enters the top of the first cooling roller. The elastic fabric and Velcro are aligned by the alignment assembly and then enter the top of the first cooling roller. The adjacent sides of the two elastic fabrics are bonded to both sides of the base fabric for pre-composite bonding. The lower surface of the Velcro is bonded to the adhesive area on the upper surface of the glued base fabric. Under the cooling and cooling of the first cooling roller, the adhesive partially cures and the pre-composite bonding of the entire base fabric is completed. The pre-composite base fabric is sent to the composite assembly by the first cooling roller for thermal bonding. The second cooling roller is located between the composite assembly and the winding frame and is driven by a motor to rotate at a constant speed. After the pre-composite base fabric is cooled and cooled again by the second cooling roller, the adhesive is completely cured and the entire base fabric is fully formed. Under the winding of the winding frame, the base fabric is smoothly wound onto the winding frame.

[0007] Furthermore, it also includes an elastic fabric alignment roller, which is located at the position where two elastic fabrics enter the composite component in parallel. A cylindrical alignment wheel is detachably fixed on the elastic fabric alignment roller, and the width of the alignment wheel is the same as the width of the bonding area.

[0008] The beneficial effects of this invention are as follows: This invention simultaneously feeds the base fabric, Velcro, and elastic fabric and winds up the composite base fabric through the cooperation of four feeding racks and a winding rack. Under the calibration of multiple alignment components, the two sides of the base fabric and the elastic fabric are pre-overlapped at the pre-composite position of the composite component. After the adhesive is applied by the adhesive component, the upper surface of the base fabric is pre-bonded with the Velcro. After one-time hot composite ironing by the hot composite roller, the four fabrics enter the pre-composite position and the whole base fabric is hot composite formed in one go. Compared with the existing technology of fixing the Velcro to the whole base fabric and then cutting it, this invention can prepare the three types of fabrics in advance and carry out quick and convenient production after going up the machine, with almost no extra intervention from production personnel. The advance and standardized modular preparation of materials reduces the problem of uneven surface and high defect rate of the cut base fabric that is easy to occur in the aforementioned existing technology. It is easier to carry out standardized modular design, and the processing of the whole base fabric is simpler and more direct. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the composite device for the base fabric.

[0010] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle and upper adhesive assembly.

[0011] Figure 3 yes Figure 1 A schematic diagram of the structure of the composite component.

[0012] Figure 4 This is a schematic diagram of the overall structure of the guidance component.

[0013] Figure 5 This is a schematic diagram showing the positional alignment of the positioning roller and the first cooling roller.

[0014] Figure 6 This is a schematic diagram showing the position of the second cooling roller. Detailed Implementation

[0015] To make the technical means, innovative features and functions of this invention easier to understand, the invention will be further described below.

[0016] like Figure 1-6As shown, the composite device for the base fabric of the present invention includes a mounting vertical plate fixedly installed at a predetermined position, at least four feeding racks holding fabric, several alignment components 2 corresponding to the feeding racks, an adhesive application component 3, a composite component 4, and a winding rack 5. The feeding racks and winding racks 5 are respectively located on both sides of the mounting vertical plate and are rotatably connected to the mounting vertical plate. The feeding racks include a base fabric feeding rack 1.1, a Velcro feeding rack 1.2, and two elastic fabric feeding racks 1.3. The base fabric feeding rack 1.1 is wound with a fully wound roll of base fabric. The free end of the base fabric enters the composite component 4 after being corrected and aligned by the alignment components 2. The elastic fabric feeding racks 1.3 are wound with a fully wound roll of elastic fabric. After the free end of the elastic fabric is corrected and calibrated by the alignment component 2, it enters the two sides of the base fabric and overlaps with the two sides of the base fabric respectively. The overlapping part of the elastic fabric and the base fabric forms a composite area. An adhesive area for hook and loop fasteners is formed between the adjacent side of the two elastic fabrics and the upper surface of the base fabric. The hook and loop fastener feeder 1.2 is wound with a whole roll of hook and loop fasteners. The gluing component 3 and the composite component 4 are respectively located at the lower center of the mounting vertical plate and are fixedly connected to the mounting vertical plate. The gluing component 3 includes a gluing seat 3.1, a glue inlet tube 3.2, and a glue pusher 3.3. The gluing seat 3.1 has a glue inlet 3.4 facing the hook and loop fastener and is fixedly connected to the mounting vertical plate. A glue application cavity is formed inside the gluing seat 3.1. The adhesive pusher 3.3 has one end inserted into the adhesive application cavity and the other end driven by a drive motor to reciprocate. The end of the adhesive application cavity away from the adhesive pusher 3.3 is connected to the adhesive application port 3.4. One end of the adhesive inlet pipe 3.2 extends into the adhesive application seat 3.1 and is connected to the adhesive application cavity, and the other end is connected to the adhesive supply tank whose flow rate is controlled by a metering pump. The composite assembly 4 includes a composite frame 4.1, a composite platform 4.2, and a composite roller 4.3. The composite frame 4.1 is fixedly connected to the mounting vertical plate and is located between the adhesive application assembly 3 and the winding frame 5. The composite platform 4.2 is fixedly installed inside the composite frame 4.1 and has a composite area on its top. The composite roller 4.3 is driven by a motor to rise and fall and is rotatably mounted on the composite platform 4.2. At the top, a composite pressure strip 4.4 is fixedly provided circumferentially on the composite roller 4.3 corresponding to the composite area of ​​the elastic fabric and the base fabric. A heating element connected to the circuit is fixedly provided inside the composite pressure strip 4.4. The heating element uniformly heats the contact surface between the composite pressure strip 4.4 and the elastic fabric. After the base fabric is corrected and calibrated, it is first glued through the glue port 3.4 of the glue application component 3 and then enters the top of the composite platform 4.2. After the correction and calibration, the two elastic fabrics and the Velcro are pre-composite with the base fabric in the composite area at the top of the composite platform 4.2. The heated composite pressure strip 4.4 contacts the surface of the elastic fabric and performs the composite area bonding. The winding frame 5 cooperates to pull the fabric and completes the winding of the base fabric after bonding in the composite component 4.

[0017] In actual production applications, due to the long feeding path of the overall equipment and the need for multiple processing steps within different components, it is almost impossible for the entire equipment to simultaneously feed and smoothly process multiple fabrics using only the winding frame 5 at the end of the device. Furthermore, the feeding position of the fabric entering the processing components can experience significant displacement and deviation due to the influence of multiple components. Therefore, in practical applications, segmented feeding, segmented calibration of position, and control of fabric smoothness are more commonly employed. Figure 4 As shown, in one embodiment, the path along which the base fabric is conveyed from the base fabric feeder 1.1 to the composite assembly 4 is provided with multiple positioning components 2 and guide components. The guide components include a cylindrical guide roller 6.1 and a pressing roller 6.3 with a counterweight frame 6.2. The guide roller 6.1 is driven by a motor to rotate and controls the guiding direction of the base fabric. The pressing roller 6.3 presses against the discharge position of the guide roller 6.1 to control the discharge speed of the guide roller 6.1. Similarly, the path along which the hook and loop fastener is conveyed from the hook and loop fastener feeder 1.2 to the composite assembly 4 is provided with multiple positioning components 2 and guide components. The guide components include a cylindrical guide roller 6.1 and a pressing roller 6.3 with a counterweight frame 6.2. The guide roller 6.1 is driven by a motor to rotate and controls the guiding direction of the base fabric. The pressing roller 6.3 presses against the discharge position of the guide roller 6.1 to control the discharge speed of the guide roller 6.1. The output speed is controlled by multiple alignment components 2 and guide components along the path from the elastic fabric feeder 1.3 to the composite component 4. The guide components include a cylindrical guide roller 6.1 and a pressing roller 6.3 with a counterweight frame 6.2. The guide roller 6.1 is driven by a motor to rotate and control the direction of the bottom fabric. The pressing roller 6.3 presses against the output position of the guide roller 6.1 to control the output speed of the guide roller 6.1. This design allows for segmented and multiple calibrations of the fabric position along the feeding path, ensuring that the fabric maintains a flat shape during feeding and reducing imperceptible deviations that could lead to increasingly larger positional deviations after feeding. This ensures that the fabric accurately enters the preset feeding position in the composite component 4, guaranteeing that the fabric is correctly positioned and does not deviate during the thermal lamination process, thus completing the lamination in one go and reducing the overall defect rate in the production process.

[0018] In the above embodiments, since the two elastic fabrics need to be fed into the laminating position in parallel at the same speed before entering the laminating position, the manufacturing company will also arrange for production personnel to periodically observe the feeding of the elastic fabrics according to the order situation to reduce problems with the elastic fabrics that need to be fed in tandem. Therefore, in order to allow production personnel to easily and directly observe the feeding of the two elastic fabrics, such as Figure 5As shown, an elastic fabric alignment roller 9 is also installed on the feeding path of the elastic fabric. The elastic fabric alignment roller 9 is located at the position where the two elastic fabrics enter the composite component 4 in parallel. A cylindrical alignment wheel 10 is detachably fixed on the elastic fabric alignment roller 9. The width of the alignment wheel 10 is the same as the width of the bonding area.

[0019] In a preferred embodiment of the present invention, the pre-composite position can also be set in advance according to the actual situation, such as... Figure 5-6 As shown, it also includes a first cooling roller 7 and a second cooling roller 8. The first cooling roller 7 is located between the gluing assembly 3 and the composite assembly 4 and is driven by a motor to rotate at a constant speed. The base fabric, after being glued by the gluing assembly 3, enters the top of the first cooling roller 7. The elastic fabric and Velcro, after being aligned by the alignment assembly 2, enter the top of the first cooling roller 7. The adjacent sides of the two elastic fabrics are bonded to both sides of the base fabric for pre-composite bonding. The lower surface of the Velcro is bonded to the adhesive area on the upper surface of the glued base fabric. Under the cooling and cooling effect of the first cooling roller 7, the glue partially cures, completing the pre-composite bonding of the entire base fabric. The pre-composite base fabric is then fed into the composite assembly 4 by the first cooling roller 7 for thermal bonding. The second cooling roller 8 is located between the composite assembly 4 and the winding frame 5 and is driven by a motor to rotate at a constant speed. After the pre-composite base fabric is cooled and cooled again by the second cooling roller 8, the glue is completely cured, and the entire base fabric is fully formed. Under the winding of the winding frame 5, the base fabric is smoothly wound onto the winding frame 5. Due to the glue overflowing from the gluing assembly 3... While the adhesive is at a certain temperature, it cannot be immediately bonded to the base fabric in the bonding area. Generally, it is necessary to cool it slightly and wait for the adhesive to partially cure before the hook and loop fasteners and the base fabric are bonded together before proceeding with the subsequent heat lamination. The aforementioned preferred solution of pre-lamination at the top of the first cooling roller 7 solves the problem that the base fabric and hook and loop fasteners will still slide after the adhesive is applied, resulting in misalignment and scrapping of the entire fabric. While the adhesive is being cooled, the pre-lamination of the entire base fabric is completed at the top of the first cooling roller 7, allowing the base fabric to be pre-shaped, reducing the precision requirements of the subsequent heat lamination process. The cooling of the second cooling roller 8 reduces the temperature of the partially cured adhesive to room temperature, ensuring that the adhesive can be fully cured and the hook and loop fasteners and the base fabric can be completely bonded, reducing the problem of delamination after bonding. On the other hand, the temperature of the base fabric bonding area is relatively high after heat lamination. Cooling by the second cooling roller 8 can promptly shape the fabric and reduce the uncontrollable deformation that may occur during the natural cooling process.

[0020] Although the present invention has been disclosed above with specific embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended claims.

Claims

1. A composite device for a base fabric, characterized in that: The system includes a mounting vertical plate fixedly installed at a predetermined position, at least four feed racks holding fabric, several alignment components (2) corresponding to the feed racks, an adhesive application component (3), a composite component (4), and a take-up rack (5). The feed racks and take-up racks (5) are respectively located on both sides of the mounting vertical plate and are rotatably connected to the mounting vertical plate. The feed racks include a base fabric feed rack (1.1), a Velcro feed rack (1.2), and two elastic fabric feed racks (1.3). The base fabric feed rack (1.1) is wrapped with a fully wound roll of base fabric. The free end of the base fabric enters the composite component (4) after being corrected and aligned by the alignment component (2). The elastic fabric feed racks (1.3) are wrapped with a fully wound roll of elastic fabric. The elastic fabric, after being corrected and calibrated by the positioning component (2), enters the two sides of the bottom fabric and overlaps with the two sides of the bottom fabric respectively. The overlapping part of the elastic fabric and the bottom fabric forms a composite area. An adhesive area for Velcro to be bonded is formed between the adjacent side of the two elastic fabrics and the upper surface of the bottom fabric. The Velcro feeder (1.2) is wrapped with a whole roll of Velcro. The gluing component (3) and the composite component (4) are respectively located at the lower part of the middle of the mounting plate and are fixedly connected to the mounting plate. The gluing component (3) includes a gluing seat (3.1), a glue inlet tube (3.2), and a glue pusher (3.3). The gluing seat (3.1) has a glue inlet (3.4) facing the Velcro side and is fixedly connected to the mounting plate. Next, an adhesive application cavity is provided in the adhesive application seat (3.1). One end of the adhesive pusher (3.3) extends into the adhesive application cavity and the other end is driven by a drive motor to reciprocate. The end of the adhesive application cavity away from the adhesive pusher (3.3) is connected to the adhesive application port (3.4). One end of the adhesive inlet pipe (3.2) extends into the adhesive application seat (3.1) and is connected to the adhesive application cavity. The other end is connected to the adhesive supply tank whose flow rate is controlled by a metering pump. The composite component (4) includes a composite frame (4.1), a composite platform (4.2), and a composite roller (4.3). The composite frame (4.1) is fixedly connected to the mounting vertical plate and is located between the adhesive application component (3) and the winding frame (5). The composite platform (4.2) is fixedly installed in the composite frame (4.1) and tops it. The unit is provided with a composite area. The composite roller (4.3) is driven by a motor to rise and fall and is rotatably mounted on the upper part of the composite platform (4.2). The composite roller (4.3) is circumferentially fixed with a composite pressure strip (4.4) corresponding to the composite area of ​​the elastic fabric and the base fabric. The composite pressure strip (4.4) is fixed with a heating element connected to the circuit inside. The heating element uniformly heats the contact surface between the composite pressure strip (4.4) and the elastic fabric. After the base fabric is corrected and calibrated, it is first glued through the glue port (3.4) of the glue application component (3) and then enters the top of the composite platform (4.2). After the correction and calibration, the two elastic fabrics and Velcro are pre-composite with the base fabric in the composite area at the top of the composite platform (4.2). The heated composite pressure strip (4.4) is then used to apply the glue.4) The fabric contacts the elastic fabric surface and is laminated in the composite area. The winding frame (5) pulls the fabric and completes the winding of the base fabric after lamination within the composite assembly (4).

2. The composite device for a base fabric according to claim 1, characterized in that: The path along which the base fabric is conveyed from the base fabric feeder (1.1) to the composite assembly (4) is provided with multiple positioning components (2) and guide components. The guide components include a cylindrical guide roller (6.1) and a pressing roller (6.3) with a counterweight frame (6.2). The guide roller (6.1) is driven by a motor to rotate and control the guiding direction of the base fabric. The pressing roller (6.3) presses against the discharge position of the guide roller (6.1) to control the discharge speed of the guide roller (6.1). The path along which the Velcro is conveyed from the Velcro feeder (1.2) to the composite assembly (4) is provided with multiple positioning components (2) and guide components. The guide components include a cylindrical guide roller (6.1) and a pressing roller (6.2) with a counterweight frame (6.2). The pressing roller (6.3) of the elastic fabric is driven by a motor to rotate and control the guiding direction of the bottom fabric. The pressing roller (6.3) presses against the discharge position of the guide roller (6.1) to control the discharge speed of the guide roller (6.1). The elastic fabric is provided with multiple positioning components (2) and guiding components on the path from the elastic fabric feeder (1.3) to the composite component (4). The guiding component includes a cylindrical guide roller (6.1) and a pressing roller (6.3) with a counterweight outer frame (6.2). The guide roller (6.1) is driven by a motor to rotate and control the guiding direction of the bottom fabric. The pressing roller (6.3) presses against the discharge position of the guide roller (6.1) to control the discharge speed of the guide roller (6.1).

3. The composite device for a base fabric according to claim 1 or 2, characterized in that: It also includes a first cooling roller (7) and a second cooling roller (8). The first cooling roller (7) is located between the gluing assembly (3) and the composite assembly (4) and is driven by a motor to rotate at a constant speed. The base fabric is glued by the gluing assembly (3) and then enters the top of the first cooling roller (7). The elastic fabric and Velcro are aligned by the alignment assembly (2) and then enter the top of the first cooling roller (7). The adjacent sides of the two elastic fabrics are bonded to both sides of the base fabric for pre-composite bonding. The lower surface of the Velcro is bonded to the bonding area of ​​the upper surface of the glued base fabric. Under the cooling and cooling of the first cooling roller (7), the glue partially solidifies and the pre-composite of the base fabric is completed. The pre-composite base fabric is fed into the composite assembly (4) by the first cooling roller (7) for thermal composite. The second cooling roller (8) is located between the composite assembly (4) and the winding frame (5) and is driven by a motor to rotate at a constant speed. After the pre-composite base fabric is cooled and cooled again by the second cooling roller (8), the glue is completely solidified and the base fabric is completely formed. Under the winding of the winding frame (5), the base fabric is smoothly wound onto the winding frame (5).

4. A composite device for a base fabric according to claim 1 or 2, characterized in that: It also includes an elastic cloth alignment roller (9), which is located at the position where the two elastic cloths enter the composite component (4) in parallel. A cylindrical alignment wheel (10) is detachably fixed on the elastic cloth alignment roller (9), and the width of the alignment wheel (10) is the same as the width of the bonding area.

5. The composite device for a base fabric according to claim 3, characterized in that: It also includes an elastic cloth alignment roller (9), which is located at the position where the two elastic cloths enter the composite component (4) in parallel. A cylindrical alignment wheel (10) is detachably fixed on the elastic cloth alignment roller (9), and the width of the alignment wheel (10) is the same as the width of the bonding area.

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