Cross-paving processing method and cross-paving processing system for viscous coiled material

Abstract

According to the cross-laying processing method and the cross-laying processing system for the viscous coiled material, through cooperative control of X / Y-direction processing lines, the procedures of unwinding of the viscous coiled material, film layer stripping, online fixed-length transverse cutting, precise positioning, rolling pressing and pasting, winding and the like are integrated, full-process automatic material cross-laying production is achieved, the processing efficiency can be remarkably improved, the production cost is reduced, and the production efficiency is improved. And unstable product quality caused by experience difference of operators is avoided. Due to the rotary design of the Y-direction base and the angle adjustable structure of the transverse cutting table, the system can flexibly adapt to grid cross laying (0 degree + 90 degrees) and cross grain cross laying ((0 degree + 45 degrees, 0 degree-45 degrees, 0 degree + other angles and 0 degree-other angles). And meanwhile, a color code sensor is additionally arranged, so that the laying boundary with different colors can be accurately recognized, or a CCD photoelectric sensor or a thickness sensor is additionally arranged, so that the laying boundary can be accurately detected, the risk of laying dislocation is avoided, it is guaranteed that the laying splicing gap is 0-0.5 mm, and the consistency of the performance of the cross-laid composite material and the product quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of resin matrix composites, and particularly to a cross-laying processing method and a cross-laying processing system for viscous coils. Background Art

[0002] A unidirectional viscous coil refers to a strip-shaped viscous coil made of continuously parallel fibers or unidirectional fabrics impregnated with resin, such as carbon fiber prepreg, PE unidirectional tape, and thermoplastic tape. Due to its excellent mechanical properties and strong designability, it is widely used in high-performance structural components such as aerospace, automobiles, wind turbine blades, and high-end sports equipment. At the same time, because the unidirectional viscous coil has good resin viscosity, multi-axial structural materials can be constructed by laying unidirectional viscous coils at different angles, thereby realizing the regulation of the mechanical properties of the material.

[0003] Common multi-axial structures include square viscous coils, twill viscous coils, and multi-axial viscous coils, etc. For example: (1) Square viscous coil: formed by cross-laying unidirectional viscous coils in the 0° direction and the 90° direction vertically, suitable for application scenarios that require balanced longitudinal and transverse strengths; (2) Twill viscous coil: usually composed of cross-laying unidirectional viscous coils in the 0° direction and the ±45° direction, with good shear strength and torsional resistance; (3) Multi-axial viscous coil: composed of at least three different angles of unidirectional viscous coils combined, which can meet the structural design requirements under complex load conditions.

[0004] In the prior art, the cross-laying operation of unidirectional viscous coils at different angles is usually carried out manually. Specifically, the automated production line is responsible for completing the process of "unwinding - staying on the paving platform - rewinding" of the unidirectional viscous coil in the main direction (such as 0°). When the unidirectional viscous coil in the main direction stays on the paving platform, it is necessary for manual participation to transfer, position, and align the unidirectional viscous coils in other directions (such as 90°, ±45°, or other angles) cut offline, and then stack and lay them on the unidirectional viscous coil in the main direction. Although this manual paving method can avoid the overlap between different cut pieces and can reduce the air bubbles between the unidirectional viscous coil in the main direction and the unidirectional viscous coils in other directions to a certain extent, its disadvantages are also very obvious:

[0005] 1. Low production efficiency: Manual operation takes a long time and is difficult to meet the rhythm requirements of large-scale industrial production;

[0006] 2. Large fluctuation in paving joint gaps: Due to the influence of human factors, there are large fluctuations in the paving joint gaps, which easily affect the consistency and repeatability of product performance;

[0007] 3. Weak process controllability: Lack of standardized operation procedures, and it is easy to cause unstable product quality due to differences in the experience of operators.

[0008] Therefore, developing efficient, precise, and highly repeatable automated laying equipment and processes has become one of the technical problems that need to be urgently solved by those skilled in the art. Summary of the Invention

[0009] The purpose of the present invention is to overcome the defects of the prior art and provide a laying processing method and system for sticky coils, which can solve the problems existing in the prior laying processing technology, such as low production efficiency, large fluctuations in the gaps between the joints of the laid sheets, and weak process controllability.

[0010] To achieve the above and other purposes, the present invention is realized by including the following technical solutions: As a first aspect, the present invention proposes a laying processing method for sticky coils. The sticky coils are square sticky coils, twill sticky coils, or multi-axial sticky coils, and the sticky coils are at least formed by laying and processing a first sticky coil and a second sticky coil; the laying processing method includes the steps:

[0011] S1. Remove the outer film layer of the first sticky coil and tow it to the sensor of the laying unit to wait for laying.

[0012] S2. Remove the outer film layer of the second sticky coil and cut the second sticky coil into blocks online according to the specified laying angle. The distance between the two transverse cutting edges of the second sticky coil block is equal to the distance between the two length edges of the first sticky coil.

[0013] S3. Adsorb the second sticky coil block through the transverse movement unit and position and transfer it to the laying unit. When the two transverse cutting edges of the second sticky coil block are aligned with the two length edges of the first sticky coil, the transverse movement unit releases the adsorption of the second sticky coil block and rolls and adheres the second sticky coil block onto the first sticky coil.

[0014] S4. After completing the laying of one second sticky coil block, continue to tow the first sticky coil until the sensor detects the joint edge between the second sticky coil block and the first sticky coil.

[0015] S5. Repeat steps S2 to S4 until the sticky coil of the required length is obtained.

[0016] In an embodiment, the fiber layer of the first sticky coil and the inner film layer of the second sticky coil have different colors; the sensor is a color mark sensor, which is used to accurately position the joint edge between the second sticky coil block and the first sticky coil according to the different colors of the fiber layer of the first sticky coil and the inner film layer of the second sticky coil.

[0017] In one embodiment, the fiber layer of the first adhesive coil is the same color as or different from the inner film layer of the second adhesive coil; the sensor is a CCD optoelectronic sensor or a thickness sensor, which accurately locates the boundary edge between the second adhesive coil block with a thickness difference and the first adhesive coil.

[0018] In one embodiment, steps S1 and S2 are carried out synchronously.

[0019] As a second aspect, the present invention provides an overlapping processing system for adhesive coils, which uses a first adhesive coil and a second adhesive coil to overlap and process adhesive coils; the adhesive coils are square grid adhesive coils, twill adhesive coils or multi-axial adhesive coils; the overlapping processing system includes:

[0020] An X-direction processing line, including an X-direction base, and an X-direction unwinding unit, a paving unit and a winding unit arranged on the X-direction base in sequence from front to back; the X-direction unwinding unit is used to unwind the first adhesive coil and remove the outer film layer of the first adhesive coil; the paving unit includes a paving platform and a sensor, and the sensor is arranged on the edge in the length direction of the paving platform and is used to locate the boundary edge between the first adhesive coil and the second adhesive coil; the winding unit is used to wind the adhesive coil.

[0021] A Y-direction processing line, including a Y-direction base rotatably arranged on the X-direction base, and a Y-direction unwinding unit, a trimming unit, a cross-cutting unit and a transverse movement unit arranged on the Y-direction base in sequence from front to back; the Y-direction unwinding unit is used to unwind the second adhesive coil and remove the outer film layer of the second adhesive coil; the trimming unit is used to automatically trim the second adhesive coil online; the cross-cutting unit is used to automatically cut the second adhesive coil into fixed-length blocks online; the transverse movement unit is used to position and transfer the cut second adhesive coil to the paving platform.

[0022] In one embodiment, the fiber layer of the first adhesive coil is different in color from the inner film layer of the second adhesive coil; the sensor is a color mark sensor.

[0023] In one embodiment, the fiber layer of the first adhesive coil is the same color as or different from the inner film layer of the second adhesive coil; the sensor is a CCD optoelectronic sensor or a thickness sensor.

[0024] In one embodiment, the X-direction unwinding unit includes an X-direction unwinding roller, an X-direction cold water roller, an X-direction film winding roller, and a driving device for driving each roller to rotate. The first adhesive coil material unwound by the X-direction unwinding roller tears off the outer film layer through the X-direction cold water roller, and the outer film layer is wound by the X-direction film winding roller; the first adhesive coil material after removing the outer film layer is drawn to the paving unit; the Y-direction unwinding unit includes a Y-direction unwinding roller, a Y-direction cold water roller, a Y-direction film winding roller, and a driving device for driving each roller to rotate. The second adhesive coil material unwound by the Y-direction unwinding roller tears off the outer film layer through the Y-direction cold water roller, and the outer film layer is wound by the Y-direction film winding roller; the second adhesive coil material after removing the outer film layer is drawn to the edge trimming unit.

[0025] In one embodiment, the paving unit includes a tension roller, a cutting table, an X-direction pressing roller, and a paving platform arranged in sequence from front to back. The tension roller is used to measure the unwinding tension of the first adhesive coil material; the cutting table is used to cut and lap a new roll of the first adhesive coil material after a roll of the first adhesive coil material is used up; the X-direction pressing roller is used to draw the first adhesive coil material to the paving platform and maintain a constant unwinding tension of the first adhesive coil material.

[0026] In one embodiment, the paving platform is a hot plate for heating the first adhesive coil material.

[0027] In one embodiment, the cross-cutting unit includes a cross-cutting table, a push rod, and a Y-direction second pressing roller. The cross-cutting table is rotatably installed on the Y-direction base through a rotating seat; the fixed end of the push rod is arranged on the Y-direction base, and the moving end is arranged on the cross-cutting table for pushing the cross-cutting table to rotate and change the angle of fixed-length cross-cutting; the Y-direction second pressing roller is arranged between the cutting table and the transverse moving unit for drawing the second adhesive coil material after cross-cutting to the transverse moving unit.

[0028] In one embodiment, the transverse moving unit includes a transverse moving bracket, an adsorption and transverse moving plate, and a rubber pressing roller; the transverse moving bracket is arranged on the Y-direction base and is located above the paving platform; the adsorption and transverse moving plate is slidably arranged on the transverse moving bracket through a transverse moving rack and a transverse moving gear. The adsorption and transverse moving plate is provided with a limiting block for positioning the second adhesive coil material and an adsorption device for adsorbing the second adhesive coil material; the rubber pressing roller is arranged above the rear end of the adsorption and transverse moving plate in a lifting manner.

[0029] In one embodiment, cold water is passed through the adsorption and transverse moving plate for cooling the second adhesive coil material block.

[0030] In one embodiment, the winding unit includes a main traction unit, and cold water is passed through the upper roller of the main traction unit to cool and shape the adhesive coil material.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. Through the coordinated control of the X / Y direction processing line, the present invention integrates processes such as unwinding of the sticky coil, film layer peeling, on-line fixed-length cross-cutting, precise positioning, roll pressing and laminating, and winding, realizing fully automated production, replacing traditional manual cutting and pasting operations, which can significantly improve processing efficiency and avoid product quality instability caused by differences in operator experience;

[0033] 2. Through the rotation design of the Y-direction base and the angle-adjustable structure of the cross-cutting table, the system can flexibly adapt to the cross-laying requirements of square-grid, twill, and multi-axial sticky coils, supporting multi-angle combinations such as 0°, ±45°, 90°;

[0034] 3. By using the different-color design of the inner film layer of the first sticky coil and the fiber layer of the second sticky coil, the color mark sensor can accurately identify the cross-laying boundary; or by using the thickness difference between the cross-laid area and the non-cross-laid area, the CCD photoelectric sensor or thickness sensor is added to accurately identify the cross-laying boundary; thus, the risk of misalignment during angle switching can be avoided. Combining the fixed-length cutting of the second sticky coil by the cross-cutting unit and the limit positioning technology of the adsorption and transverse movement plate, the paving joint edges between different second sticky coil blocks can be accurately aligned, ensuring that the paving joint gap is between 0 and 0.5 mm, guaranteeing high consistency and repeatability of the mechanical properties of the composite material;

[0035] 4. The setting of the X / Y-direction cold water rollers in the present invention can reduce the resin viscosity of the first / second sticky coil and improve the effect of removing the outer film layer of the first sticky coil / second sticky coil;

[0036] 5. The configuration of the trimming unit in the present invention can ensure the neat edges of the sticky coil; the setting of the tension roller can measure the tension and ensure the traction stability of the X-direction pressing roller;

[0037] 6. The paving platform of the present invention uses a hot plate to moderately heat the first sticky coil, softening the resin to enhance the interlayer wettability, which can improve the adhesion strength of the first sticky coil to the second sticky coil and inhibit the generation of bubbles;

[0038] 7. The adsorption and transverse movement plate in the present invention is internally passed with cold water, which can cool the second sticky coil block, inhibit the resin viscosity of the second sticky coil during the transfer process, and avoid its adhesion to the adsorption and transverse movement plate, affecting the laminating operation;

[0039] 8. The main traction unit of the present invention provides the main traction force and pressurizes the first sticky coil and the second sticky coil after cross-laying to make their adhesion effect better. The upper roller of the main traction unit is internally passed with cold water, which can cool and shape the sticky coil. Description of the Drawings

[0040] Figure 1 Shown is a first - angle three - dimensional structural schematic diagram of a cross - laying processing system for an adhesive coil of the present invention.

[0041] Figure 2 Shown is a second - angle three - dimensional structural schematic diagram of a cross - laying processing system for an adhesive coil of the present invention.

[0042] Figure 3 Shown is a side schematic diagram of the X - direction processing line of the present invention.

[0043] Figure 4 Shown is a side schematic diagram of the Y - direction processing line of the present invention.

[0044] In the figure: 101, X - direction base; 111, X - direction unwinding roller; 112, X - direction cold water roller; 113, guiding roller; 114, X - direction film winding roller; 121, tension roller; 122, cutting table; 123, X - direction pressing roller; 124, paving platform; 125, sensor; 131, main traction unit; 132, finished product winding roller; 201, Y - direction base; 202, transverse moving base; 211, Y - direction unwinding roller; 212, Y - direction cold water roller; 213, Y - direction film winding roller; 221, traction unit; 222, edge trimming table; 223, Y - direction first pressing roller; 224, waste edge winding roller; 231, cross - cutting table; 232, rotating base; 233, push rod; 234, Y - direction second pressing roller; 241, transverse moving support; 242, adsorption transverse moving plate; 243, limit block; 244, rubber pressing roller; 245, tape pasting unit; 251, transverse moving motor; 252, transverse moving gear; 253, transverse moving rack; 261, rotating base; 262, slewing bearing; 263, rotating motor. Detailed implementation manners

[0045] Please refer to Figures 1 - 4 . The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0046] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0047] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which the present invention pertains. Similar terms such as "a", "an", or "the" used in the present invention do not indicate a limitation in quantity, but merely indicate the existence of at least one. Terms such as "comprising" or "including" mean that the elements or objects appearing before such terms cover the elements or objects listed after such terms and their equivalents, without excluding other elements or objects. The serial numbers assigned to components in this specification, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the "connection" mentioned in the present invention, unless otherwise specified, includes both direct and indirect connections. The "front" and "rear" used in the present invention represent the directions of operation execution, with the earlier operation in the front and the later operation in the rear.

[0048] To avoid confusion with the present invention, some well-known technical features in the art are not described.

[0049] (Example 1)

[0050] Reference Figures 1 - 4 , this embodiment provides a cross-laying processing method for sticky coils, which at least uses a first sticky coil and a second sticky coil for cross-laying processing. The first sticky coil and the second sticky coil can be respectively one of carbon fiber prepreg, PE unidirectional tape or thermoplastic tape; the obtained sticky coil is a square sticky coil and a twill sticky coil; at least one of the first sticky coil and the second sticky coil can also be a square sticky coil and a twill sticky coil, and the obtained sticky coil is a multi-axial sticky coil. Among them, both the first sticky coil and the second sticky coil have a three-layer structure, that is, they include an outer film layer (the film layer facing outward when placed on the unwinding roller), an intermediate resin and fiber composite (i.e., the fiber layer), and an inner film layer (the film layer facing inward when placed on the unwinding roller). The outer film layer and the inner film layer can be PE film or release paper. Usually, the outer film layer is PE film and the inner film layer is release paper. Specifically, the cross-laying processing method includes the steps:

[0051] S1. Remove the outer film layer of the first sticky coil and tow it to the sensor 125 of the paving unit to wait for cross-laying; among them, the fiber layer of the first sticky coil towed to the paving unit faces upward, and the inner film layer faces downward and is closely attached to the paving unit;

[0052] S2. Remove the outer film layer of the second sticky coil, and cut the second sticky coil block into a specified length transversely according to the specified cross-laying angle; the distance between the two transverse cutting edges of the second sticky coil block is equal to the distance between the two length edges of the first sticky coil;

[0053] S3, the second adhesive coiled material block is adsorbed by the transverse moving unit and is positioned and transferred to the laying unit. When the two transverse edges of the second adhesive coiled material block are aligned with the two longitudinal edges of the first adhesive coiled material, the transverse moving unit releases the adsorption of the second adhesive coiled material block and rolls and presses the second adhesive coiled material block onto the first adhesive coiled material; wherein the fiber layer of the second adhesive coiled material transferred to the laying unit is rolled and pressed onto the first adhesive coiled material with the fiber layer facing downward and the inner film layer facing upward;

[0054] S4, after the second adhesive coil is laid, the first adhesive coil continues to be pulled until the sensor 125 detects the boundary edge between the second adhesive coil and the first adhesive coil;

[0055] Specifically, in this embodiment, the fiber layer of the first adhesive web and the inner film layer of the second adhesive web are different in color, for example, the fiber layer of the first adhesive web is black (mainly the color of the fiber), and the inner film layer of the second adhesive web (such as release paper) is white; the sensor 125 is a color mark sensor. When interleaving, the first adhesive web is black when facing upward, and the second adhesive web is white when facing upward, so that the color mark sensor can accurately identify the boundary edge between the second adhesive web and the first adhesive web; the two opposite colors of black and white can further improve the detection sensitivity of the color mark sensor. In addition, two color mark sensors can be set to further improve the accuracy of judging the boundary edge.

[0056] S5. Repeat steps S2 to S4 until the adhesive coil of required length is obtained.

[0057] Furthermore, steps S1 and S2 can be performed simultaneously, which can further improve production efficiency. In step S5, after the previous second adhesive coil is laid, the trimming and crosscutting operation of the next second adhesive coil can be performed synchronously with the operation of pulling the first adhesive coil and positioning the edge of the laying interface by the sensor 125.

[0058] Furthermore, the paving platform 124 of the paving unit is a hot plate for heating the first viscous coil, which can soften the resin of the first viscous coil to enhance interlayer wettability, thereby improving the bonding strength of the first viscous coil to the second viscous coil and inhibiting the generation of bubbles during the lamination process.

[0059] Furthermore, the transverse shift unit adsorbs the second sticky coil block through the adsorption transverse shift plate 242. In order to suppress the resin viscosity of the second sticky coil during the transfer process and prevent it from sticking to the adsorption transverse shift plate 242 and affecting the pressing operation, cold water is passed through the adsorption transverse shift plate 242 to cool the second sticky coil block. At the same time, an additional adsorption device, such as a blowing device or a pressure roller, can be provided to achieve the purpose of adsorbing the second sticky coil.

[0060] (Example 2)

[0061] This embodiment provides a cross-laying processing method for sticky coils. The difference from Embodiment 1 is that the colors of the fiber layer of the first sticky coil and the inner film layer of the second sticky coil can be the same or different; the sensor 125 is a CCD optoelectronic sensor or a thickness sensor, and the thickness sensor can be a capacitive thickness sensor, an ultrasonic thickness sensor, an X-ray thickness sensor, etc.

[0062] During cross-laying, the thickness of the area where the first sticky coil and the second sticky coil are cross-laid is usually twice that of the area where cross-laying is not completed (only the inner film layer and the fiber layer of the first sticky coil), and the thickness difference is obvious. Moreover, regardless of whether the colors of the fiber layer of the first sticky coil and the inner film layer of the second sticky coil are the same or different, the CCD optoelectronic sensor or the thickness sensor can be used to accurately identify the boundary edge with a thickness drop. In addition, two CCD optoelectronic sensors or thickness sensors can be set to further improve the judgment accuracy of the boundary edge.

[0063] (Embodiment 3)

[0064] As Figures 1 - 4 shown, this embodiment provides a cross-laying processing system for sticky coils, which can execute the cross-laying processing method described in Embodiment 1. Specifically, the cross-laying processing system includes an X-direction processing line and a Y-direction processing line. The Y-direction processing line can be rotated at a specified angle relative to the X-direction processing line as a whole, such as 90°, 60°, and 45°. In this embodiment, it is designed that the X-direction processing line is stationary and the Y-direction processing line can rotate, but this is not necessary. In some other embodiments, it can also be designed that the Y-direction processing line is stationary and the X-direction processing line can rotate, that is, as long as the two processing lines can rotate relative to each other.

[0065] The X-direction processing line includes an X-direction base 101, and an X-direction unwinding unit, a paving unit, and a winding unit arranged on the X-direction base 101 in sequence from front to back.

[0066] The X-direction unwinding unit is used to unwind the first viscous coil and remove the outer film layer of the first viscous coil; specifically, the X-direction unwinding unit includes an X-direction unwinding roller 111, an X-direction cold water roller 112, a guide roller 113, an X-direction film-receiving roller 114, and a driving device for driving each roller to rotate. The X-direction cold water roller 112 is lower than the X-direction unwinding roller 111 and is arranged behind the X-direction unwinding roller 111; two guide rollers 113 are provided, both located above the X-direction unwinding roller 111; and the X-direction film-receiving roller 114 is arranged in front of the X-direction unwinding roller 111. The first viscous coil unrolled by the X-direction unwinding roller 111 is convenient to tear off the outer film layer after the X-direction cold water roller 112 reduces the viscosity of the resin, and the outer film layer is rewound by the X-direction film-receiving roller 114 via the guide roller 113; the first viscous coil after the outer film layer is removed is pulled to the laying unit with the fiber layer facing upward and the inner film layer facing downward. It should be noted that the provision of the guide roller 113 is not necessary. It is used to guide the outer film layer to avoid the X-direction unwinding roller 111 and be rolled into the X-direction film taking-up roller 114. Therefore, when the X-direction film taking-up roller 114 is directly away from and disposed obliquely above the X-direction unwinding roller 111, the outer film layer can directly avoid the X-direction unwinding roller 111 and be rolled into the X-direction film taking-up roller 114 without the need to provide the guide roller 113.

[0067] The paving unit includes a tension roller 121, a cutting table 122, an X-direction pressure roller 123, a paving platform 124, and a driving device for driving each roller to rotate, which are arranged in sequence from front to back. A tension sensor is arranged on the tension roller 121 to measure the unwinding tension of the first viscous coil; the cutting table 122 is used to cut and overlap a new roll of the first viscous coil after a roll of the first viscous coil is used up; the X-direction pressure roller 123 is used to pull the first viscous coil to the paving platform 124, and at the same time, it can isolate the tension of the rear section to maintain a constant unwinding tension. The paving platform 124 can be a hot plate, which is used to heat the first viscous coil, which can soften the resin of the first viscous coil to enhance the interlayer wettability, thereby improving the bonding strength of the first viscous coil to the second viscous coil and suppressing the generation of bubbles during the pressing process. Two sensors 125 are arranged on the length direction edge of the paving platform 124. The sensors 125 are color mark sensors, which are used to accurately locate the boundary edge of the first viscous coil and the second viscous coil according to the different color designs of the fiber layer of the first viscous coil and the inner film layer of the second viscous coil. When the first viscous coil is pulled to the boundary edge where the color change is detected, the main traction unit 131 stops pulling the first viscous coil and accurately locates the paving position of the next second viscous coil, thereby ensuring that the paving seam edges between different second viscous coil blocks are accurately aligned and the paving seam gap is between 0 and 0.5 mm.

[0068] The winding unit is used to wind up the viscous coil, and includes a main traction unit 131 and a finished product winding roller 132 arranged in sequence from front to back. The main traction unit 131 provides the main traction force and presses the first viscous coil and the second viscous coil that have been laid together to make the bonding effect better. Cold water can be passed through the upper roller of the main traction unit 131 to cool and shape the viscous coil. The finished product winding roller 132 is used to wind up the finished viscous coil.

[0069] The Y-axis processing line includes a Y-axis base 201 rotatably arranged on the X-axis base 101, and a Y-axis unwinding unit, a traction unit 221, a trimming unit, a cross-cutting unit and a transverse movement unit arranged on the Y-axis base 201 from front to back. Specifically, the Y-axis base 201 is fixed on the rotating base 261 through a slewing bearing 262, and the rotating motor 263 drives the slewing bearing 262 to rotate, driving the Y-axis base 201 to rotate, so that the laminating angle of the second adhesive coil on the first adhesive coil can be adjusted, for example, 90°, 60° and 45°. Furthermore, the end of the Y-axis base 201 away from the X-axis base 101 can be fixed on the transverse movement base 202 arranged in the X direction through a guide rail, so that the rotation process of the Y-axis base 201 is more stable.

[0070] The Y-direction unwinding unit is used to unwind the second viscous coil and remove the outer film layer of the second viscous coil. Specifically, the Y-direction unwinding unit includes a Y-direction unwinding roller 211, a Y-direction cold water roller 212, a Y-direction film-receiving roller 213, and a driving device for driving each roller to rotate. The Y-direction cold water roller 212 is higher than the Y-direction unwinding roller 211 and is arranged behind the Y-direction unwinding roller 211; the Y-direction film-receiving roller 213 is lower than the Y-direction cold water roller 212 and is arranged behind the Y-direction cold water roller 212. The second viscous coil unwinded by the Y-direction unwinding roller 211 is convenient to tear off the outer film layer after the Y-direction cold water roller 212 reduces the viscosity of the resin, and the outer film layer is rewound by the Y-direction film-receiving roller 213; the second viscous coil after the outer film layer is removed is pulled to the trimming unit by the pulling unit 221 with the fiber layer facing downward and the inner film layer facing upward.

[0071] The traction unit 221 is used to provide a main traction force for unwinding the second adhesive web.

[0072] The trimming unit is used to automatically trim the second adhesive roll online to make the seam edge of the second adhesive roll neat. Specifically, the trimming unit includes a trimming table 222, a first Y-direction pressure roller 223, and a waste edge winding roller 224 arranged in sequence from front to back, and a driving device for driving each roller to rotate. The first Y-direction pressure roller 223 provides lateral tension for the trimming table 222 to ensure the trimming effect; the waste edge cut by the trimming table 222 is wound up by the waste edge winding roller 224.

[0073] The cross-cutting unit is used for automatically cutting the second adhesive coil into fixed lengths online, and includes a cross-cutting table 231, a push rod 233, and a second Y-direction pressing roller 234. The cross-cutting table 231 is rotatably mounted on the Y-direction base 201 through a rotating seat 232; the push rod 233 can be an electric push rod, its fixed end is arranged on the Y-direction base 201, and the moving end is arranged on the cross-cutting table 231, and is used to push the cross-cutting table 231 to rotate to change the angle of fixed-length cross-cutting, such as 90°, 60°, and 45°. The distance between the two cross-cut edges of the second adhesive coil block after cross-cutting is equal to the distance between the two length edges of the first adhesive coil; the second Y-direction pressing roller 234 is arranged between the cutting table 122 and the transverse movement unit, and is used to traction the second adhesive coil block after cross-cutting to the transverse movement unit.

[0074] The transverse movement unit is used for positioning and transferring the cut second adhesive coil to the paving platform 124, and includes a transverse movement support 241, an adsorption and transverse movement plate 242, a rubber pressing roller 244, and a tape pasting unit 245; the transverse movement support 241 is arranged on the Y-direction base 201 and is located above the paving platform 124; the adsorption and transverse movement plate 242 is slidably arranged on the transverse movement support 241 through a transverse movement rack 253 and a transverse movement gear 252, and a transverse movement motor 251 drives the transverse movement gear 252 to slide on the transverse movement rack 253, thereby driving the adsorption and transverse movement plate 242 to move on the transverse movement support 241. The rubber pressing roller 244 is arranged above the rear end of the adsorption and transverse movement plate 242 in a lifting manner. When the adsorption and transverse movement plate 242 extends to the length edge of the first adhesive coil, the rubber pressing roller 244 presses down to press the cross-cut edge of the second adhesive coil block against the length edge of the first adhesive coil. At the same time, the adsorption and transverse movement plate 242 releases the adsorption on the second adhesive coil block and moves forward, and the rubber pressing roller 244 follows the adsorption and transverse movement plate 242 to move, and rolls and pastes the second adhesive coil block on the first adhesive coil. The tape pasting unit 245 is arranged on the transverse movement support 241 and is located above the rubber pressing roller 244, and is used to bond the disconnected inner film layers on multiple second adhesive coil blocks together.

[0075] Further, cold water is passed through the adsorption and transverse movement plate 242 to cool the second adhesive coil block, preventing the second adhesive coil from sticking to the adsorption and transverse movement plate 242 during the transfer process and affecting the adsorption release process. At the same time, an additional adsorption device, such as a blowing device or a pressing roller, is added to adsorb the second adhesive coil block after it arrives, to prevent the second adhesive coil block from shaking during the transverse movement. A limit block 243 for positioning the second adhesive coil is arranged on the adsorption and transverse movement plate 242, and the limit block 243 can accurately position the splicing edge of the second adhesive coil, ensuring the accuracy of the splicing position.

[0076] (Embodiment 4)

[0077] This embodiment provides a cross-laying processing system for sticky coils, which can execute the cross-laying processing method described in Embodiment 2. The difference from Embodiment 3 is that the sensor 125 is a CCD optoelectronic sensor or a thickness sensor, and the thickness sensor can be a capacitive thickness sensor, an ultrasonic thickness sensor, an X-ray thickness sensor, etc. The sensor 125 is used to accurately locate the junction edge of the first sticky coil and the second sticky coil according to the thickness difference between the area where the cross-laying is completed and the area where the cross-laying is not completed. When the first sticky coil is pulled to the detected junction edge where the thickness becomes smaller, the main traction unit 131 stops pulling the first sticky coil, and accurately locates the laying position of the next second sticky coil block, so as to ensure accurate alignment of the laying joint edges between different second sticky coil blocks and ensure that the laying joint gap is between 0 and 0.5 mm.

[0078] Therefore, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value. The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A cross-laying processing method for a sticky coil, characterized in that, The sticky coil is a square sticky coil, a twill sticky coil or a multi-axial sticky coil, and the sticky coil is at least formed by cross-laying and processing a first sticky coil and a second sticky coil; The cross-laying and processing method includes the steps of: S1. Remove the outer film layer of the first sticky coil and tow it to the sensor of the paving unit to wait for cross-laying; S2. Remove the outer film layer of the second sticky coil, and cut the second sticky coil block transversely online according to the specified cross-laying angle. The distance between the two transverse cutting edges of the second sticky coil block is equal to the distance between the two length edges of the first sticky coil; S3. Adsorb the second sticky coil block by the transverse movement unit and position and transfer it to the paving unit. When the two transverse cutting edges of the second sticky coil block are aligned with the two length edges of the first sticky coil, the transverse movement unit releases the adsorption of the second sticky coil block and rolls and adheres the second sticky coil block to the first sticky coil; S4. After the cross-laying of one second sticky coil block is completed, continue to tow the first sticky coil until the sensor detects the junction edge of the second sticky coil block and the first sticky coil; S5. Repeat steps S2 to S4 until the sticky coil of the required length is obtained.

2. The cross-laying processing method of the adhesive coil according to claim 1, characterized in that, The fiber layer of the first sticky coil is different in color from the inner film layer of the second sticky coil; the sensor is a color mark sensor, which is used to accurately position the junction edge of the second sticky coil block and the first sticky coil according to the different colors of the fiber layer of the first sticky coil and the inner film layer of the second sticky coil.

3. The cross-laying processing method of the sticky coil according to claim 1, characterized in that, The fiber layer of the first sticky coil is the same or different in color from the inner film layer of the second sticky coil; the sensor is a CCD optoelectronic sensor or a thickness sensor, which accurately positions the junction edge of the second sticky coil block and the first sticky coil with a thickness difference.

4. The cross-laying processing method of the adhesive coil according to claim 1, characterized in that Steps S1 and S2 are carried out synchronously.

5. A cross-laying processing system for a sticky coil, characterized in that, A sticky coil is processed by cross-laying a first sticky coil and a second sticky coil; the sticky coil is a square sticky coil, a twill sticky coil or a multi-axial sticky coil; the cross-laying processing system includes: An X-direction processing line, including an X-direction base, and an X-direction unwinding unit, a paving unit and a winding unit arranged on the X-direction base in sequence from front to back; the X-direction unwinding unit is used for unwinding the first sticky coil and removing the outer film layer of the first sticky coil; the paving unit includes a paving platform and a sensor, and the sensor is arranged on the edge in the length direction of the paving platform and is used for positioning the junction edge of the first sticky coil and the second sticky coil; the winding unit is used for winding the sticky coil; The Y-direction processing line includes a Y-direction base rotatably arranged on the X-direction base, and a Y-direction unwinding unit, a trimming unit, a cross-cutting unit, and a transverse transfer unit arranged in sequence from front to back on the Y-direction base; the Y-direction unwinding unit is used for unwinding the second adhesive coil and removing the outer film layer of the second adhesive coil; the trimming unit is used for automatically trimming the second adhesive coil online; the cross-cutting unit is used for automatically cutting the second adhesive coil into fixed-length pieces online; the transverse transfer unit is used for positioning and transferring the cut second adhesive coil to the paving platform.

6. The cross-laying processing method of the adhesive coil according to claim 5, characterized in that, The fiber layer of the first adhesive coil is different in color from the inner film layer of the second adhesive coil; the sensor is a color mark sensor.

7. The cross-laying processing method of the adhesive coil according to claim 5, characterized in that, The fiber layer of the first adhesive coil is the same as or different in color from the inner film layer of the second adhesive coil; the sensor is a CCD optoelectronic sensor or a thickness sensor.

8. The cross-laying processing system for the adhesive coil according to claim 5, characterized in that, The X-direction unwinding unit includes an X-direction unwinding roller, an X-direction cold water roller, an X-direction film winding roller, and a driving device for driving each roller to rotate. The first adhesive coil unwound by the X-direction unwinding roller tears off the outer film layer through the X-direction cold water roller, and the outer film layer is wound by the X-direction film winding roller; the first adhesive coil after removing the outer film layer is drawn to the paving unit; the Y-direction unwinding unit includes a Y-direction unwinding roller, a Y-direction cold water roller, a Y-direction film winding roller, and a driving device for driving each roller to rotate. The second adhesive coil unwound by the Y-direction unwinding roller tears off the outer film layer through the Y-direction cold water roller, and the outer film layer is wound by the Y-direction film winding roller; the second adhesive coil after removing the outer film layer is drawn to the trimming unit.

9. The cross-laying processing system for the sticky coil according to claim 5, characterized in that, The paving unit includes a tension roller, a cutting table, an X-direction pressing roller, and a paving platform arranged in sequence from front to back. The tension roller is used for measuring the unwinding tension of the first adhesive coil; the cutting table is used for cutting and lapping a new roll of the first adhesive coil after a roll of the first adhesive coil is used up; the X-direction pressing roller is used for drawing the first adhesive coil to the paving platform and maintaining a constant unwinding tension of the first adhesive coil.

10. The cross-laying processing system for the sticky coil according to claim 5 or 9, characterized in that, The paving platform is a hot plate for heating the first adhesive coil.

11. The cross-laying processing system for the sticky coil according to claim 5, characterized in that, The cross-cutting unit includes a cross-cutting table, a push rod, and a Y-direction second pressing roller. The cross-cutting table is rotatably installed on the Y-direction base through a rotating seat; the fixed end of the push rod is arranged on the Y-direction base, and the moving end is arranged on the cross-cutting table, and is used for pushing the cross-cutting table to rotate to change the angle of fixed-length cross-cutting; the Y-direction second pressing roller is arranged between the cutting table and the transverse transfer unit and is used for drawing the cross-cut second adhesive coil to the transverse transfer unit.

12. The cross-laying processing system for the adhesive coil according to claim 5, characterized in that, The transverse transfer unit includes a transverse transfer bracket, an adsorption and transverse transfer plate, and a rubber pressing roller; the transverse transfer bracket is arranged on the Y-direction base and is located above the paving platform; the adsorption and transverse transfer plate is slidably arranged on the transverse transfer bracket through a transverse transfer rack and a transverse transfer gear, and a limiting block for positioning the second adhesive coil and an adsorption device for adsorbing the second adhesive coil are arranged on the adsorption and transverse transfer plate; the rubber pressing roller is arranged above the rear end of the adsorption and transverse transfer plate in a lifting manner.

13. The cross-laying processing method of the adhesive coil according to claim 12, characterized in that, Cold water is passed through the adsorption transverse plate for cooling the second viscous coil block.

14. The cross-laying processing system for the sticky coil according to claim 5, characterized in that, The winding unit includes a main traction unit, and cold water is passed through the upper roller of the main traction unit to cool and shape the viscous coil.

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