A safe and environment-friendly composite film and a composite process thereof

Abstract

The present application relates to the technical field of composite film, in particular to a safe and environment-friendly composite film and a composite process thereof, which comprises the following steps: base material pretreatment, composite hot pressing, curing and solidification and winding, which are completed by a composite device; the composite device comprises a rack, and a unwinding roller, a glue roller, a hot pressing roller, a curing chamber and a winding mechanism arranged in the rack in sequence along the conveying direction of the composite film; two unwinding rollers, two glue rollers and two hot pressing rollers are arranged in an upper and lower interval respectively; the rack is provided with a first spraying device between the two glue rollers; the winding of the composite film and the discharging treatment of the wound composite film are completed by the winding mechanism; the production process is not interrupted without stopping, thereby improving the production efficiency of the composite film and reducing the labor intensity in the production process of the composite film.

Description

Technical Field

[0001] This invention relates to the field of composite membrane technology, and more specifically to a safe and environmentally friendly composite membrane and its composite process. Background Technology

[0002] In the fields of packaging, electronics, and building materials, the demand for composite films continues to grow due to their synergistic physicochemical properties (such as barrier properties, strength, and weather resistance) from multiple substrates. However, the existing composite film lamination process uses a single-station design, meaning that after a single set of winding rollers completes the winding of a roll of composite film, the machine must be stopped and the roll must be manually removed. During this process, upstream processes such as unwinding, gluing, hot pressing, and curing must be paused simultaneously, resulting in a long interruption in the production process. According to industry practice, the time spent changing rollers during a single shutdown usually accounts for 15%-30% of the production cycle of a single batch, which seriously restricts the overall production efficiency, especially in large-scale production scenarios, making it difficult to meet high-capacity demands, and the manual removal is labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a safe and environmentally friendly composite membrane and its composite process.

[0004] To achieve the above objectives, the specific solution of the present invention is as follows:

[0005] The first aspect of this invention provides a safe and environmentally friendly composite film lamination process, including substrate pretreatment, hot pressing, curing, and winding processes completed by a lamination equipment; wherein, the lamination equipment includes a frame, and an unwinding roller, a coating roller, a hot pressing roller, a curing chamber, and a winding mechanism arranged sequentially along the composite film conveying direction on the frame; the two unwinding rollers, the two coating rollers, and the two hot pressing rollers are arranged vertically at intervals; a first spraying device is provided between the two coating rollers on the frame; the winding mechanism completes the winding of the composite film and the unloading of the wound composite film.

[0006] Furthermore, the winding mechanism of the present invention includes a feeding assembly, a winding bracket, a cutting assembly, a drive shaft, and a second spraying device; the feeding assembly is located below the winding bracket and is used to transport the idle winding roller; both ends of the winding roller have locking holes.

[0007] The drive shaft is rotatably mounted on the frame; two take-up brackets are rotatably mounted on both sides of the frame and coaxial with the drive shaft; each end of the drive shaft is respectively fitted with a central roller coupled to the take-up bracket; each take-up bracket is rotatably mounted with multiple planetary rollers in the circumferential direction, and each planetary roller is slidably mounted with a connecting shaft coaxial with the corresponding planetary roller; the connecting shaft is elastically floating and equipped with a locking pin for coupling with a locking hole; a drive roller is rotatably mounted between each planetary roller and its corresponding central roller; the drive roller is coupled to the central roller and its corresponding planetary roller; the cutting assembly is located above the take-up bracket; the second spraying device is located between the take-up bracket and the curing chamber;

[0008] The frame has vertically sliding counterweight pins on both sides directly below the drive shaft for coupling with the feeding assembly and the connecting shaft.

[0009] Furthermore, the outer end of the locking pin is provided with a tapered head; both ends of the take-up roller shaft hole are respectively provided with connecting grooves extending from their end faces to the locking hole; the tapered head is inserted into the locking hole through the connecting groove.

[0010] Furthermore, the present invention provides a first arc groove on both sides of the frame directly above the counterweight pin; one end of the first arc groove smoothly transitions to the surface of the frame; the transmission roller is provided with a first pin shaft that is movably inserted through the winding bracket and used to couple with the first arc groove; a tension spring is connected between the transmission roller and the winding bracket; the tension spring enables the first pin shaft to be movably embedded in the first arc groove.

[0011] Furthermore, the present invention provides a second arc groove on both sides of the frame; the connecting shaft is provided with a second pin that movably penetrates the winding bracket and is used to couple with the second arc groove along its axial direction; a first spring is connected between the connecting shaft and the winding bracket; the first spring enables the second pin to be movably embedded in the second arc groove; the top of the counterweight pin is provided with a wedge-shaped surface for cooperating with the second pin.

[0012] Furthermore, the present invention provides a clutch assembly between the center roller and the winding bracket; the clutch assembly includes a permanent magnet fixed to one side of the center roller, an electromagnet fixed in the center hole of the winding bracket, and a second spring disposed between the center roller and the winding bracket; one end of the second spring is fixedly connected to the winding bracket.

[0013] Furthermore, the feeding assembly includes two linear motors vertically mounted on both sides of the frame; the output end of each linear motor is connected to a sliding seat located directly below the counterweight pin; a feeding seat is provided between the two sliding seats; the two ends of the feeding seat are respectively raised and lowered on the corresponding sliding seats, and a buffer spring is fixedly connected between the feeding seat and the sliding seat; a positioning groove is recessed on the top of the feeding seat.

[0014] Furthermore, the cutting assembly of the present invention includes a cutting bracket fixedly mounted on the top of the frame, an arc-shaped pressure plate that is raised and lowered on the cutting bracket, a cylinder mounted on the top of the cutting bracket, and a cutting blade that is raised and lowered on the cutting bracket; the middle part of the cutting blade is connected to the output end of the cylinder; a third spring is connected between the cutting blade and the arc-shaped pressure plate; the arc-shaped pressure plate is provided with a through-cut for the cutting blade to pass through; the arc length of the arc-shaped pressure plate, with the through-cut as the center, is greater on the side closer to the curing chamber than on the side farther from the curing chamber.

[0015] Furthermore, the frame is also provided with a conveying device; a guide plate is inclinedly arranged at one end of the conveying device near the winding support; a winding pressure plate is movably arranged above the conveying device on the frame; the winding pressure plate includes a flat plate portion and an arc-shaped portion; the lower end of the arc-shaped portion is connected to the upper end of the flat plate portion; the flat plate portion is arranged parallel to the guide plate; and spring pieces are connected between the two ends of the flat plate portion and the frame.

[0016] A second aspect of the present invention provides a safe and environmentally friendly composite membrane, which is manufactured by the composite process described above.

[0017] The beneficial effects of this invention are as follows: This invention achieves automatic feeding of the take-up roller by cooperating with the feeding component and the counterweight, and cooperating with the connecting shaft. At the same time, by utilizing the coupling between the central roller and the take-up bracket, and the coupling between the transmission roller and the central roller and the planetary roller, the transmission between the central roller and the take-up bracket, and between the planetary roller and the central roller is realized, thereby realizing the positional revolution and self-rotation of the take-up roller. This automatically realizes the automatic winding of the composite film and the automatic unloading after winding, without stopping the production process, thereby improving the production efficiency of the composite film and reducing the labor intensity in the composite film manufacturing process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the composite equipment used in the composite process provided in the embodiments of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the composite equipment used in the composite process provided in this embodiment of the invention after hiding one side plate;

[0020] Figure 3 This is a schematic diagram of the composite equipment used in the composite process provided in this embodiment of the invention after the other side plate is hidden;

[0021] Figure 4 This is a top view of the composite equipment used in the composite process provided in the embodiments of the present invention;

[0022] Figure 5 yes Figure 4 A cross-sectional view along the AA direction;

[0023] Figure 6 yes Figure 4 A cross-sectional view along the BB direction;

[0024] Figure 7 yes Figure 6 A magnified view of a portion of point i;

[0025] Figure 8 yes Figure 6 A magnified view of a portion of point ii;

[0026] Figure 9 This is a schematic diagram of the winding mechanism provided in an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the structure of the drive shaft, winding bracket, winding roller, center roller, transmission roller and planetary roller provided in the embodiment of the present invention;

[0028] Figure 11 This is a cross-sectional schematic diagram of the winding roller, connecting shaft, and planetary roller assembly provided in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of the side plate of the frame provided in an embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the structure of the feeding assembly provided in an embodiment of the present invention;

[0031] Figure 14 This is a schematic diagram of the structure of the cutting assembly provided in an embodiment of the present invention;

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Base frame; 12. Side plate; 13. Counterweight pin; 14. First arc groove; 15. Second arc groove; 2. Unwinding roller; 3. Glue-applying roller; 4. Hot press roller; 5. Curing chamber; 61. Feeding assembly; 611. Linear motor; 612. Sliding seat; 613. Feeding seat; 6131. ​​Positioning groove; 614. Buffer spring; 62. Rewinding bracket; 621. Center roller; 622. Planetary roller; 623. Connecting shaft; 6231. Second pin; 6232. First spring; 624. Locking pin; 625. Transmission roller; 6251, First pin; 6252, Tension spring; 6261, Permanent magnet; 6262, Electromagnet; 6263, Second spring; 63, Cutting assembly; 631, Cutting bracket; 632, Arc-shaped pressure plate; 633, Cylinder; 634, Cutter; 635, Third spring; 64, Drive shaft; 65, Second spraying device; 66, Take-up roller; 661, Clamping hole; 662, Connecting groove; 67, Drive motor; 7, First spraying device; 8, Conveying device; 81, Guide plate; 91, Take-up pressure plate; 911, Flat section; 912, Arc-shaped section; 92, Spring. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the invention to this.

[0034] like Figures 1 to 14 As shown in this embodiment, a safe and environmentally friendly composite film lamination process includes substrate pretreatment, composite hot pressing, curing, and winding. The substrate pretreatment, composite hot pressing, curing, and winding processes are all completed by a lamination equipment. The lamination equipment includes a frame 1, and an unwinding roller 2, a coating roller 3, a hot pressing roller 4, a curing chamber 5, and a winding mechanism arranged sequentially along the composite film conveying direction on the frame 1. The two unwinding rollers 2, two coating rollers 3, and two hot pressing rollers 4 are arranged vertically and horizontally at intervals. A first spraying device 7 is provided between the two coating rollers 3 on the frame 1. The winding mechanism completes the winding of the composite film and the unloading of the wound composite film. The frame 1 includes a base frame 11 and two side plates 12 fixed side-by-side at intervals on the top of the base frame 11. The unwinding roller 2, coating roller 3, hot pressing roller 4, curing chamber 5, and winding mechanism are arranged between the two side plates 12. The specific structure of the first spraying device 7 will not be described in detail here; it is sufficient to describe the structure that enables the spraying of adhesive onto the surface of the coating roller 3.

[0035] Specifically, such as Figures 1 to 3 ,as well as Figure 5As shown, for ease of explanation of the composite process in this embodiment, the two unwinding rollers 2 are defined as unwinding roller A 2 and unwinding roller B 2, the two coating rollers 3 are defined as coating roller A 3 and coating roller B 3, and the two hot pressing rollers 4 are defined as hot pressing roller A 4 and hot pressing roller B 4, respectively. In actual use, a first composite layer is provided on unwinding roller A 2, and a second composite layer is provided on unwinding roller B 2. The first composite layer is sequentially wound around coating roller A 3 and hot pressing roller A 4, and the second composite layer is sequentially wound around coating roller B 3 and hot pressing roller B 4. At the same time, the first spraying device 7 sprays adhesive onto the roller surfaces of coating roller A 3 and coating roller B 3. The adhesive from coating roller A 3 transitions to the surface of the first composite layer, and the adhesive from coating roller B 3 transitions to the surface of the second composite layer, thereby completing the substrate pretreatment process. Then, adhesive is adhered to the surface. The first and second composite layers of the adhesive are bonded together by hot press rollers A and B to form a preliminary composite film, thus completing the composite hot pressing process. After the preliminary composite film is formed, it enters the curing chamber 5 for curing treatment. During the curing process, the adhesive is fully cross-linked and cured to ensure that the first and second composite layers are firmly bonded to form the target composite film, thus completing the curing process. After curing, the composite film is cooled to room temperature and then enters the winding mechanism for automatic winding and automatic unloading after winding, thus completing the composite film bonding process.

[0036] like Figures 1 to 14As shown, the winding mechanism of this embodiment includes a feeding assembly 61, a winding bracket 62, a cutting assembly 63, a drive shaft 64, and a second spraying device 65. The feeding assembly 61 is located below the winding bracket 62 and is used to transport the idle winding roller 66. Both ends of the winding roller 66 have locking holes 661. The drive shaft 64 is rotatably mounted on the frame 1. Two winding brackets 62 are rotatably mounted on both sides of the frame 1 and are coaxial with the drive shaft 64. The two ends of the drive shaft 64 are respectively fitted with central rollers 621 coupled to the winding brackets 62. Each winding bracket 62 is provided with multiple planetary rollers 622 rotatably in the circumferential direction, and each planetary roller 622 is slidably connected with a connecting shaft 623 coaxial with the corresponding planetary roller 622. Preferably, the number of planetary rollers 622 is four, and the four planetary rollers 622 are distributed in a cross shape in the circumferential direction with the central roller 621 as the center. The two winding brackets 621 are rotatably mounted on both sides of the frame 1 and are coaxial with the drive shaft 65. The planetary rollers 622 between the supports 62 are arranged in a one-to-one correspondence. The two planetary rollers 622 opposite each other between the two winding supports 62 form a group, that is, there are four groups in total; the connecting shaft 623 is elastically floating and equipped with a locking pin 624 for coupling with the locking hole 661; each planetary roller 622 is rotatably equipped with a transmission roller 625 between it and the corresponding center roller 621; the transmission roller 625 is coupled with the center roller 621 and the corresponding planetary roller 622, that is, the planetary roller 622 can be connected to the center roller 621 through the transmission roller 625; the cutting assembly 63 is located above the winding support 62; the second spraying device 65 is located between the winding support 62 and the curing chamber 5, and is used to spray adhesive onto the roller surface of the winding roller 66; the frame 1 has vertically sliding counterweight pins 13 on both sides directly below the transmission shaft 64 for coupling with the feeding assembly 61 and the connecting shaft 623. The second spraying device 65 is an existing structure, and its specific structure will not be described in detail here. It is sufficient to achieve the structure of spraying adhesive onto the roller surface of the take-up roller 66.

[0037] Specifically, during the lamination of the composite film, the idle take-up roller 66 is placed in the feeding assembly 61. The feeding assembly 61 drives the take-up roller 66 to move upwards between it and the lowermost set of planetary rollers 622, i.e., the set of planetary rollers 622 located at the feeding station. The planetary rollers 622 located at the feeding station are discoupled from their corresponding transmission rollers 625. Then, the feeding assembly 61 pushes the counterweight pin 13 upwards. During the upward movement of the counterweight pin 13, it pushes the corresponding connecting shaft 623 to move axially toward the shaft hole of the take-up roller 66. The connecting shaft 623 drives the locking pin 624 to insert into the shaft hole of the take-up roller 66 until the locking pin 624 is movably inserted into the locking hole 661 of the take-up roller 66. Figure 8 As shown, the take-up roller 66 is connected to the two planetary rollers 622 as a single unit, thereby achieving the engagement of the take-up roller 66 and enabling the feeding of the take-up roller 66; then, the center roller 621 is coupled and connected to the take-up bracket 62, as shown. Figure 6 and Figure 7 As shown, the drive shaft 64 rotates, the feeding assembly 61 moves down to avoid it, and the counterweight pin 13 moves down under its own weight. The drive shaft 64 can connect one end of the drive shaft 64 to the output end of the drive motor 67. The drive motor 67 is installed on the outside of the side plate 12 of the frame 1. The drive shaft 64 drives the center roller 621 to rotate, and the center roller 621 drives the winding bracket 62 to rotate, so that the idle winding roller 66 moves to the side that is flush with and close to the second spraying device 65, that is, the winding roller 66 moves to the glue spraying station. During this process, the corresponding drive roller 625 gradually couples with the corresponding planetary roller 622 so that the roller surface of the winding roller 66 can be evenly sprayed with adhesive. The second spraying device 65 sprays adhesive onto the roller surface of the winding roller 66, and at the same time moves the next set of planetary rollers 622 to the feeding station.

[0038] Then, the winding bracket 62 moves the take-up roller 66, which is coated with adhesive, to directly below the cutting assembly 63, i.e., the take-up roller 66 is positioned at the winding station. The composite film, cooled to room temperature, is wound around the roller surface of the take-up roller 66. Then, the center roller 621 is decoupled from the winding bracket 62. At this time, the center roller 621 drives the planetary roller 622 to rotate through the corresponding transmission roller 625. The planetary roller 622 drives the take-up roller 66 to rotate and wind up the composite film through the connecting shaft 623 and the engagement of the locking pin 624 and the locking hole 661. When the take-up roller 66 is wound to the predetermined length, the center roller 621 is recoupled from the winding bracket 62, so that the wound take-up roller 66 rotates to be flush with and away from the second spraying device 65. On one side of the second spraying device 65, namely the take-up roller 66, is located at the unloading station. At the same time, the next take-up roller 66 with adhesive sprayed on its surface rotates to the take-up station. The connecting shaft 623 in the take-up roller 66 located at the unloading station drives the locking pin 624 to move out of the locking hole 661 until the connecting shaft 623 moves out of the shaft hole of the take-up roller 66, thereby releasing the locking of the take-up roller 66 with the composite film. At the same time, the cutting component 63 wraps the composite film around the roller surface of the next take-up roller 66 and cuts the composite film, so that the take-up roller 66 with the composite film moves out of the take-up area under its own weight, thereby completing the unloading of the composite film without stopping the production process. Then the cutting component 63 resets, and the above process is repeated to carry out the take-up process of the next roll of composite film.

[0039] It should be noted that, as Figure 9 As shown, in this embodiment, each set of planetary rollers 622, driven by the winding bracket 62, circulates through the loading station, the glue spraying station, the winding station, and the unloading station, thereby enabling continuous winding of the composite film without stopping the machine and improving the production efficiency of the composite film.

[0040] This embodiment achieves automatic feeding of the take-up roller 66 by cooperating with the feeding component 61 and the counterweight, and with the counterweight and the connecting shaft 623. Simultaneously, the coupling between the central roller 621 and the take-up bracket 62, and the coupling between the transmission roller 625 and the central roller 621 and the planetary rollers 622, enables transmission between the central roller 621 and the take-up bracket 62, and between the planetary rollers 622 and the central roller 621. This facilitates the revolution and rotation of the take-up roller 66, automatically winding and unloading the composite film without interrupting the production process, thus improving the production efficiency of the composite film and reducing labor intensity during the composite film manufacturing process.

[0041] like Figure 8 and Figure 11 As shown, in the composite process of the safe and environmentally friendly composite film in this embodiment, the outer end of the locking pin 624 is provided with a tapered head; both ends of the shaft hole of the take-up roller 66 are respectively provided with a connecting groove 662 extending from its end face to the locking hole 661; the tapered head is inserted into the locking hole 661 through the connecting groove 662. Specifically, when the take-up roller 66 is in the feeding station, under the action of the counterweight pin 13 pressing the connecting shaft 623, the connecting shaft 623 moves inward along the axial direction of the take-up roller 66, thereby driving the locking pin 624 into the shaft hole of the take-up roller 66. The locking pin 624 enters along the connecting groove 662 until the locking pin 624 is aligned with the locking hole 661. The conical head of the locking pin 624 is locked into the locking hole 661, thereby connecting the connecting shaft 623, the planetary roller 622 and the take-up roller 66 into a whole. When the take-up roller 66 rotates to the glue spraying station, the connecting shaft 623 drives the pin to move outward along the axial direction of the take-up roller 66. Since the conical head is locked into the locking hole 661, the conical head can automatically exit the locking hole 661 under the drive of the connecting shaft 623, so as to realize the automatic unloading of the take-up roller 66 after winding the composite film.

[0042] like Figure 7 and Figure 12As shown, in the composite process of the safe and environmentally friendly composite film in this embodiment, the frame 1 has a first arc groove 14 on both sides directly above the counterweight pin 13; one end of the first arc groove 14 smoothly transitions to the surface of the frame 1; the transmission roller 625 is provided with a first pin 6251 that is movably inserted through the winding bracket 62 and used to couple with the first arc groove 14; a tension spring 6252 is connected between the transmission roller 625 and the winding bracket 62; the tension spring 6252 can make the first pin 6251 movably embedded in the first arc groove 14. Specifically, during the process of the take-up bracket 62 driving the take-up roller 66 to move from the loading station to the glue spraying station, the first pin 6251 of the transmission roller 625 is movably embedded in the first arc groove 14 under the action of the tension spring 6252. As the take-up bracket 62 drives the transmission roller 625 to rotate, the first pin 6251 moves along the first arc groove 14. When the first pin 6251 gradually moves out of the first arc groove 14, the side plate 12 of the frame 1 squeezes the transmission roller 625 to move through the first pin 6251, so that the transmission roller 625 moves to engage with the central roller 621 and the corresponding planetary roller 622. At this time, the tension spring 6252 is stretched, so that under the drive of the central roller 621, the corresponding planetary roller 622 drives the take-up roller 66 to rotate through the transmission of the transmission roller 625, so that the second spraying device 65 can evenly spray the adhesive on the roller surface of the take-up roller 66.

[0043] When the take-up roller 66 rotates to the unloading position, the connecting shaft 623 moves out of the shaft hole of the take-up roller 66, thereby releasing the support for the take-up roller 66 and causing the take-up roller 66 to disengage from the corresponding planetary roller 622. As the take-up bracket 62 rotates, the first pin 6251 of the corresponding transmission roller 625 is re-embedded in the first arc groove 14, thereby cutting off the transmission between the center roller 621 and the corresponding planetary roller 622, so as to enable the feeding operation of the take-up roller 66.

[0044] like Figure 8 , Figure 11 as well as Figure 12As shown, in the composite process of the safe and environmentally friendly composite film in this embodiment, the frame 1 is also provided with a second arc groove 15 on both sides; the connecting shaft 623 is provided with a second pin 6231 that can be moved through the winding bracket 62 and is used to couple with the second arc groove 15; a first spring 6232 is connected between the connecting shaft 623 and the winding bracket 62; the first spring 6232 can make the second pin 6231 move into the second arc groove 15; the top of the counterweight pin 13 is provided with a wedge-shaped surface for cooperating with the second pin 6231. It should be noted that, in order for the tapered head of the locking pin 624 to automatically exit the locking hole 661 under the elastic force of the first spring 6232 to achieve automatic unloading of the winding roller 66, the elastic force of the first spring 6232 is greater than the locking force between the tapered head of the locking pin 624 and the locking hole 661. Thus, when the second pin 6231 of the connecting shaft 623 corresponds to the position of the second arc groove 15, the first spring 6232 pushes the connecting shaft 623 to reset, causing the tapered head of the locking pin 624 to exit from the locking hole 661. The two ends of the second arc groove 15 correspond to the positions of the loading station and the unloading station, respectively. During the process from the loading station to the glue spraying station, from the glue spraying station to the winding station, and from the winding station to the unloading station, the connecting shaft 623 is blocked by the side plate 12 of the frame 1 and cannot be ejected under the elastic force of the first spring 6232, thus keeping the tapered head of the locking pin 624 locked in the locking hole 661. Specifically, when the take-up roller 66 rotates to the unloading station, the second pin 6231 of the corresponding connecting shaft 623 is moved into the second arc groove 15 under the action of the first spring 6232. This causes the connecting shaft 623 to drive the tapered head of the locking pin 624 to move out of the locking hole 661. At this time, the take-up roller 66 loses the support of the connecting shaft 623 and falls under its own weight, realizing the automatic unloading operation of the take-up roller 66 without stopping the production process, and also facilitating the subsequent loading operation of the take-up roller 66. After the take-up roller 66 is unloaded, as the take-up bracket 62 continues to rotate, the take-up bracket 62 drives the planetary roller 622 after unloading to rotate from the unloading station to the loading station for the loading operation of the next take-up roller 66.

[0045] like Figure 6 and Figure 7As shown, in the composite process of the safe and environmentally friendly composite film in this embodiment, a clutch assembly is provided between the central roller 621 and the winding bracket 62. The clutch assembly includes a permanent magnet 6261 fixed to one side of the central roller 621, an electromagnet 6262 fixed in the central hole of the winding bracket 62, and a second spring 6263 disposed between the central roller 621 and the winding bracket 62. One end of the second spring 6263 is fixedly connected to the winding bracket 62. Specifically, when transmission between the central roller 621 and the winding bracket 62 is required, the electromagnet 6262 is energized, generating a magnetic attraction force on the permanent magnet 6261, thereby causing the central roller 621 to move towards the winding bracket 62 under the action of the magnetic attraction force, overcoming the elastic force of the second spring 6263, until the electromagnet 6262 and the permanent magnet 6261 are attracted, thereby realizing the transmission between the central roller 621 and the winding bracket 62. When it is necessary to disengage the transmission between the central roller 621 and the winding bracket 62, the electromagnet 6262 is energized. When the iron 6262 is de-energized, it releases the magnetic attraction force on the permanent magnet 6261. At this time, the second spring 6263 pushes the central roller 621 to reset, thereby disconnecting the transmission between the central roller 621 and the winding bracket 62. This allows the winding roller 66 to perform winding and glue spraying during its self-rotation motion, and also allows the winding roller 66 to rotate sequentially between various workstations during its revolution motion, realizing automatic winding of the composite film and automatic unloading after winding, without stopping the production process and improving the production efficiency of the composite film.

[0046] like Figure 6 , Figure 9 as well as Figure 13As shown, in the composite process of the safe and environmentally friendly composite membrane in this embodiment, the feeding assembly 61 includes two linear motors 611 vertically arranged on both sides of the frame 1; the output end of each linear motor 611 is connected to a sliding seat 612 located directly below the counterweight pin 13; a feeding seat 613 is provided between the two sliding seats 612; the two ends of the feeding seat 613 are respectively raised and lowered on the corresponding sliding seats 612, and a buffer spring 614 is fixedly connected between the feeding seat 613 and the sliding seat 612; a positioning groove 6131 is recessed on the top of the feeding seat 613. Specifically, the cross-sectional shape of the positioning groove 6131 can be set as semi-circular or flared U-shaped. If the positioning groove 6131 is semi-circular, the radius of the positioning groove 6131 is smaller than the radius of the take-up roller 66. If the positioning groove 6131 is flared U-shaped, the depth of the positioning groove 6131 is smaller than the radius of the take-up roller 66, so as to ensure that the take-up roller 66 can smoothly disengage from the positioning groove 6131 when rotating. When the take-up roller 66 needs to be fed, it is placed in the positioning groove 6131 of the feeding seat 613. The feeding operation can be performed by a robot or manually. The linear motor 611 drives the sliding seat 612 to move the feeding seat 613 upward. The feeding seat 613 moves the take-up roller 66 upward to the space between a set of planetary rollers 622 located at the feeding station. The take-up roller 66 and the planetary rollers 622 are coaxial. At this time, the drive motor 67 drives the sliding seat 612 to continue to move upward. Since the feeding seat 613 is restricted by the frame 1, the feeding seat 613 no longer drives the take-up roller 66 to move upward. Relative movement occurs between the sliding seat 612 and the feeding seat 613. The buffer spring 614 is compressed. The top of the sliding seat 612 contacts the bottom of the counterweight pin 13 and pushes the counterweight pin 13 upward. The counterweight pin 13 presses against the connecting shaft 6. 23, so that the connecting shaft 623 is inserted into the shaft hole of the take-up roller 66, and the conical head of the locking pin 624 is engaged in the locking hole 661, thereby connecting the connecting shaft 623, the planetary roller 622 and the take-up roller 66 into a whole, thereby realizing the feeding operation of the take-up roller 66. Then, the take-up bracket 62 drives the take-up roller 66 to rotate from the feeding station to the glue spraying station. At this time, the feeding seat 613 is squeezed downward by the take-up roller 66, so that the buffer spring 614 is compressed again until the take-up roller 66 is separated from the feeding seat 613. Then, the linear motor 611 drives the sliding seat 612, and the sliding seat 612 releases the lifting of the counterweight pin 13. The counterweight moves downward under its own weight, and the buffer spring 614 gradually recovers its deformation until it drives the feeding seat 613 to move down and reset, so as to enable the feeding operation of the next take-up roller 66.

[0047] Furthermore, such as Figure 13As shown, the sliding seat 612 is equipped with a guide rod, and both ends of the loading seat 613 are equipped with limit rods. The guide rod passes through the limit rod along the axial direction, and the buffer spring 614 is sleeved on the outer wall of the guide rod. When the loading seat 613 lifts the take-up roller 66 upward, the loading seat 613 drives the limit rod to move. When the limit rod abuts against the side plate 12 of the frame 1, the loading seat 613 is blocked and cannot continue to move upward with the sliding seat 612. At this time, the guide rod moves relative to the limit rod, and the buffer spring 614 is compressed, thereby realizing the lifting of the counterweight pin 13 by the sliding seat 612 to connect the connecting shaft 623, the planetary roller 622 and the take-up roller 66 into a whole.

[0048] like Figure 6 , Figure 9 as well as Figure 14 As shown, the composite process of the safe and environmentally friendly composite film in this embodiment includes a cutting assembly 63 comprising a cutting bracket 631 fixedly mounted on the top of the frame 1, an arc-shaped pressure plate 632 raised and lowered on the cutting bracket 631, a cylinder 633 mounted on the top of the cutting bracket 631, and a cutter 634 raised and lowered on the cutting bracket 631. The middle part of the cutter 634 is connected to the output end of the cylinder 633. A third spring 635 is connected between the cutter 634 and the arc-shaped pressure plate 632. The arc-shaped pressure plate 632 has a through cut for the cutter 634 to pass through. The arc length of the arc-shaped pressure plate 632, centered on the cut, is greater on the side closer to the curing chamber 5 than on the side farther from the curing chamber 5. Specifically, after the take-up roller 66 at the take-up station takes up a predetermined length of composite film, the take-up bracket 62 drives the take-up roller 66 to rotate from the take-up station to the unloading station. When the take-up roller 66 rotates to the unloading station, another take-up roller 66 rotates to the take-up station. At this time, the cylinder 633 drives the cutter 634 to move downwards, and the cutter 634 pushes the arc-shaped pressure plate 632 downwards through the third spring 635, pressing the composite film onto the roller surface of the other take-up roller 66. Since the arc length of the arc-shaped pressure plate 632 on the side closer to the curing chamber 5 is greater than the arc length on the side farther from the curing chamber 5, the composite film is reliably bonded to the new take-up roller 66. The cutter 634 moves relative to the arc-shaped pressure plate 632, the third spring 635 is compressed, and the cutter 634 passes through the cut, thereby cutting the composite film. At the same time, the second pin 6231 of the connecting shaft 623 in the unloading station is moved into the second arc groove 15 under the action of the first spring 6232, so that the connecting shaft 623 drives the tapered head of the locking pin 624 to move out of the locking hole 661. At this time, the unloading roller 66 loses the support of the connecting shaft 623 and falls out of the winding area under its own weight, realizing the automatic unloading operation of the unloading roller 66 without stopping the production process, and also facilitating the subsequent loading operation of the unloading roller 66.

[0049] like Figures 1 to 3 ,as well as Figure 5As shown, in the composite process of the safe and environmentally friendly composite film in this embodiment, the frame 1 is also provided with a conveying device 8; a guide plate 81 is inclinedly arranged at one end of the conveying device 8 near the winding bracket 62; a winding pressure plate 91 is movably arranged above the conveying device 8 on the frame 1; the winding pressure plate 91 includes a flat part 911 and an arc-shaped part 912; the lower end of the arc-shaped part 912 is connected to the upper end of the flat part 911; the flat part 911 is arranged parallel to the guide plate 81; and spring pieces 92 are connected between the two ends of the flat part 911 and the frame 1. Specifically, as the take-up roller 66 rotates from the take-up station to the unloading station, it enters the space between the flat plate 911 and the guide plate 81 under the guidance of the arc-shaped portion 912 of the take-up pressure plate 91. When the take-up roller 66 rotates to the unloading station, the connecting shaft 623 exits the shaft hole of the take-up roller 66 under the elastic force of the first spring 6232, and the conical head of the locking pin 624 exits the locking hole 661. At this time, the take-up roller 66 rolls down along the guide plate 81 onto the conveying device 8 under its own weight. Because the take-up roller 66 is located between the flat plate 911 and the guide plate 81, it can automatically wind up the tail end of the composite film during its rolling process, thus completing the unloading process of the take-up roller 66. The conveying device 8 uses existing conveying structures, such as a drive belt structure or a roller conveyor line.

[0050] like Figures 1 to 14 As shown, this embodiment of the invention also provides a safe and environmentally friendly composite membrane, manufactured through the above-described composite process. Because the composite membrane of this embodiment is manufactured through the above-described composite process, it possesses all the beneficial effects of the aforementioned composite process.

[0051] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included within the protection scope of this patent application.

Claims

1. A composite process for a safe and environmentally friendly composite membrane, characterized in that, The process includes substrate pretreatment, hot pressing, curing, and winding, all completed by a laminating equipment. The laminating equipment comprises a frame, and along the laminating film conveying direction, an unwinding roller, a coating roller, a hot pressing roller, a curing chamber, and a winding mechanism, all sequentially arranged on the frame. The two unwinding rollers, two coating rollers, and two hot pressing rollers are spaced apart vertically. A first spraying device is located between the two coating rollers on the frame. The winding mechanism completes the winding of the laminating film and the unloading of the wound laminating film. The winding mechanism includes a feeding assembly, a winding bracket, a cutting assembly, a drive shaft, and a second spraying device; the feeding assembly is located below the winding bracket and is used to transport the idle winding roller; both ends of the winding roller are provided with locking holes; The drive shaft is rotatably mounted on the frame; two take-up brackets are rotatably mounted on both sides of the frame and coaxial with the drive shaft; each end of the drive shaft is respectively fitted with a central roller coupled to the take-up bracket; each take-up bracket is rotatably mounted with multiple planetary rollers in the circumferential direction, and each planetary roller is slidably mounted with a connecting shaft coaxial with the corresponding planetary roller; the connecting shaft is elastically floating and equipped with a locking pin for coupling with a locking hole; a drive roller is rotatably mounted between each planetary roller and its corresponding central roller; the drive roller is coupled to the central roller and its corresponding planetary roller; the cutting assembly is located above the take-up bracket; the second spraying device is located between the take-up bracket and the curing chamber; The frame has vertically sliding counterweight pins on both sides directly below the drive shaft for coupling with the feeding assembly and the connecting shaft. A clutch assembly is provided between the center roller and the winding bracket; the clutch assembly includes a permanent magnet fixed on one side of the center roller, an electromagnet fixed in the center hole of the winding bracket, and a second spring provided between the center roller and the winding bracket; one end of the second spring is fixedly connected to the winding bracket.

2. The composite process for a safe and environmentally friendly composite membrane according to claim 1, characterized in that, The outer end of the locking pin is provided with a tapered head; both ends of the take-up roller shaft hole are respectively provided with a connecting groove extending from its end face to the locking hole; the tapered head is inserted into the locking hole through the connecting groove.

3. The composite process for a safe and environmentally friendly composite membrane according to claim 1, characterized in that, The frame has a first arc groove on both sides directly above the counterweight pin; one end of the first arc groove smoothly transitions to the surface of the frame; the transmission roller has a first pin that is movably inserted through the winding bracket and used to couple with the first arc groove; a tension spring connects the transmission roller and the winding bracket; the tension spring allows the first pin to be movably embedded in the first arc groove.

4. The composite process for a safe and environmentally friendly composite membrane according to claim 1, characterized in that, The frame is also provided with a second arc groove on both sides; the connecting shaft is provided with a second pin that can be moved through the winding bracket and is used to couple with the second arc groove along its axial direction; a first spring is connected between the connecting shaft and the winding bracket; the first spring can make the second pin be moved into the second arc groove; the top of the counterweight pin is provided with a wedge-shaped surface for cooperating with the second pin.

5. The composite process for a safe and environmentally friendly composite membrane according to claim 1, characterized in that, The feeding assembly includes two linear motors vertically mounted on both sides of the frame; the output end of each linear motor is connected to a sliding seat located directly below the counterweight pin; a feeding seat is provided between the two sliding seats; the two ends of the feeding seat are respectively raised and lowered on the corresponding sliding seats, and a buffer spring is fixedly connected between the feeding seat and the sliding seat; a positioning groove is recessed on the top of the feeding seat.

6. The composite process for a safe and environmentally friendly composite membrane according to claim 1, characterized in that, The cutting assembly includes a cutting bracket fixed to the top of the frame, an arc-shaped pressure plate that is raised and lowered on the cutting bracket, a cylinder located on the top of the cutting bracket, and a cutting blade that is raised and lowered on the cutting bracket; the middle part of the cutting blade is connected to the output end of the cylinder; a third spring is connected between the cutting blade and the arc-shaped pressure plate; the arc-shaped pressure plate has a through-cut for the cutting blade to pass through; the arc length of the arc-shaped pressure plate, centered on the cut, is greater on the side closer to the curing chamber than on the side farther from the curing chamber.

7. The composite process for a safe and environmentally friendly composite membrane according to claim 1, characterized in that, The frame is also equipped with a conveying device; a guide plate is inclinedly arranged at one end of the conveying device near the winding support; a winding pressure plate is movably arranged above the conveying device on the frame; the winding pressure plate includes a flat part and an arc-shaped part; the lower end of the arc-shaped part is connected to the upper end of the flat part; the flat part is arranged parallel to the guide plate; and spring pieces are connected between the two ends of the flat part and the frame.

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