Continuous embossing method and device for interlayer films for laminated glass

Abstract

This invention relates to the field of interlayer film embossing technology, and more particularly to a continuous embossing method and apparatus for interlayer films in laminated glass. The apparatus includes guide rollers, cooling rollers, a first embossing mechanism, and a second embossing mechanism. The interlayer film passes sequentially around the first embossing mechanism, the cooling roller, and the second embossing mechanism via several guide rollers, allowing the first and second embossing mechanisms to respectively emboss both sides of the interlayer film. Both the first and second embossing mechanisms include a patterned roller and a rubber roller. The rubber roller is rotatably mounted on a main frame and driven to rotate by a motor. The patterned roller is rotatably mounted on a carriage via a bearing seat. The carriage is fixedly mounted on the main frame by a fixing frame, and the patterned roller is driven to rotate by a drive motor. This invention can provide targeted protection for the pattern on the surface of the patterned roller, preventing damage to the hard chrome / Teflon coating on the surface of the patterned roller, reducing equipment maintenance costs and downtime.

Description

Technical Field

[0001] This invention relates to the field of interlayer embossing technology, specifically to a continuous embossing method and apparatus for interlayer films in laminated glass. Background Technology

[0002] Laminated glass is made by sandwiching one or more layers of organic polymer interlayer between two or more pieces of glass. After high-temperature pre-pressing and degassing, and high-temperature and high-pressure processing, the glass and interlayer are permanently bonded together. Commonly used organic polymer interlayers include PVB, SGP, EVA, PU, ​​etc.

[0003] In the prior art, such as the invention patent with publication number CN110843202A, an embossing device for an organic polymer interlayer film used in laminated glass is disclosed. The device includes a first embossing seat, a first embossing mechanism, a cooling seat, a cooling mechanism, a second embossing mechanism, and a second embossing seat. The embossing operation of the interlayer film is achieved by setting a first pattern roller and a second pattern roller in conjunction with a first adhesive roller and a second adhesive roller. The elastically yielding adhesive roller is used to compensate for the slight thickness difference in the transverse direction of the interlayer film and to press out a uniform pattern.

[0004] However, in actual use, the aforementioned existing embossing devices and similar embossing devices in the industry still have unresolved technical pain points. For example, sudden power outages can easily cause batch scrapping of the intermediate film and damage to core components of the equipment (such as the pattern roller). On the one hand, during the embossing process, the pattern roller needs to be kept at a working temperature of 150-170℃ through electromagnetic heating or heat transfer oil heating. After a power outage, existing devices can only rely on manual or conventional adjustment mechanisms to separate the pattern roller from the intermediate film, resulting in a significant delay in action. The high-temperature pattern roller and the intermediate film are only briefly in contact. Touching the roller will still cause the intermediate film to soften and stick to the surface of the pattern roll. On the other hand, even if the physical separation of the roller body and the intermediate film is achieved, the high-temperature pattern roll will still release a lot of residual heat to the surrounding area. Through thermal radiation, the intermediate film will continue to heat the intermediate film, causing it to sag and wrinkle after the tension disappears. It is very easy for the intermediate film to be wound again on the high-temperature pattern roll, resulting in the scrapping of the entire section or even the entire roll of intermediate film. At the same time, the molten intermediate film remaining on the surface of the pattern roll will carbonize and coke, damaging the hard chrome / Teflon coating of the pattern roll, which will significantly increase the equipment maintenance cost and downtime. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous embossing method and apparatus for interlayer films in laminated glass, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuous embossing device for interlayer film of laminated glass, comprising guide rollers, cooling rollers, a first embossing mechanism, and a second embossing mechanism, wherein the interlayer film passes through a plurality of guide rollers in sequence around the first embossing mechanism, the cooling rollers, and the second embossing mechanism, so that the first embossing mechanism and the second embossing mechanism respectively perform embossing operations on both sides of the interlayer film;

[0007] Both the first embossing mechanism and the second embossing mechanism include a pattern roller and a rubber roller; the rubber roller is rotatably mounted on the main frame and driven to rotate by a motor; the pattern roller is rotatably mounted on a slide frame via a bearing seat, the slide frame is fixedly mounted on the main frame via a fixing frame, and the pattern roller is driven to rotate by a drive motor;

[0008] The carriage is tilted, and the patterned roller is locked at the high end of the carriage by a positioning mechanism to cooperate with the rubber roller to emboss on the intermediate film. When the power is off, the positioning mechanism releases the locking of the patterned roller, allowing the patterned roller to slide to the low end of the carriage by gravity, and the patterned roller separates from the intermediate film.

[0009] A heat insulation component is provided on one side of the circumferential surface of the patterned roller. When the patterned roller is located at the high end of the carriage, the heat insulation component is in an idle state. When the patterned roller is located at the low end of the carriage, the heat insulation component changes from an idle state to a blocking state located between the patterned roller and the intermediate film.

[0010] Preferably, the positioning mechanism includes a power-off reset cylinder, a synchronizing rod, and positioning heads. The power-off reset cylinder is fixedly mounted on a fixed frame, and the two positioning heads are respectively fixed at both ends of the synchronizing rod. The synchronizing rod is fixedly connected to the output shaft of the power-off reset cylinder.

[0011] When powered on, the output shaft of the power-off reset cylinder is extended, and the positioning head locks the pattern roller at the high end of the carriage; when powered off, the output shaft of the power-off reset cylinder retracts and resets, the positioning head releases the lock on the pattern roller, and the pattern roller slides to the low end of the carriage.

[0012] Preferably, the carriage includes a first end seat and a second end seat, and a guide rod fixedly connected between the first end seat and the second end seat. A guide sleeve is slidably disposed on the guide rod, and the guide sleeve is fixedly connected to the bearing seat through a clamping plate.

[0013] When powered on, the positioning mechanism locks the patterned roller by limiting the position of the guide sleeve.

[0014] Preferably, a rack is fixedly installed on one side of the carriage, and a gear ring is fixed at both ends of the heat insulation component, the gear ring meshing with the rack; a mounting bracket is fixed on the bearing seat, the gear ring is rotatably connected to the mounting bracket through a mounting bearing, and the gear ring is coaxially arranged with the pattern roller.

[0015] Preferably, the heat insulation component is a cylindrical shape that is coaxial with the patterned roller and not closed circumferentially, and there is a gap between the heat insulation component and the patterned roller. The central angle of the heat insulation component covering the patterned roller circumferentially is 220°-270°.

[0016] Preferably, the top of one side of the positioning head is provided with a second inclined surface; the bottom of one side of the guide sleeve is provided with a first inclined surface that matches the second inclined surface;

[0017] A screw is rotatably mounted on the second end seat, with one end of the screw protruding from one side of the second end seat; a sliding hole is provided on the other side of the second end seat, and a stop block is slidably mounted inside the sliding hole, with the stop block threadedly connected to the screw.

[0018] When the positioning head locks the patterned roller at the high end of the carriage, the second inclined surface fits against the first inclined surface, and the guide sleeve abuts against the stop block.

[0019] Preferably, a hexagonal head is fixed to one end of the screw that protrudes from one side of the second end seat.

[0020] Preferably, a buffer component is fixedly provided at one end of the guide sleeve near the first end seat. The buffer component includes an outer cylinder and a connecting rod. A first fixing plate and a second fixing plate are fixed at both ends of the outer cylinder, respectively. A baffle is fixed at one end of the connecting rod, and a flexible pad is fixed at one end of the baffle. The other end of the connecting rod slides through the first fixing plate and extends into the interior of the outer cylinder and is fixed with a piston. A spring is provided between the piston and the second fixing plate. A second through hole is opened at one end of the outer cylinder near the second fixing plate. A plurality of first through holes are opened on the circumferential surface of the first fixing plate.

[0021] A continuous embossing method for interlayer films in laminated glass, the continuous embossing method being based on the aforementioned continuous embossing apparatus for interlayer films in laminated glass, comprising the following steps:

[0022] S1. The intermediate film is passed sequentially around the first embossing mechanism, the cooling roller and the second embossing mechanism via several guide rollers;

[0023] S2. Start the drive motor to drive the pattern rollers of the first and second embossing mechanisms to rotate, and begin embossing the two sides of the intermediate film.

[0024] S3. When the power is off, the drive motor stops rotating, and the power failure reset cylinder will retract and reset its output shaft after the power is off, so that the positioning head releases the lock on the patterned roller, the patterned roller slides to the lower end of the carriage, and at the same time, the toothed ring will roll along the rack, driving the heat insulation component to change from an idle state to a blocking state located between the patterned roller and the intermediate film.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] This invention rotatably mounts a patterned roller on a carriage, with the carriage tilted. A positioning mechanism locks the patterned roller in place. Under normal power conditions, the patterned roller can work stably with the rubber roller for embossing. In the event of a sudden power failure, the positioning mechanism quickly releases the lock on the patterned roller, allowing it to slide rapidly to the lower end of the carriage under gravity. This enables rapid and automatic separation of the patterned roller from the intermediate film, completely preventing contact adhesion between the high-temperature patterned roller and the intermediate film. This eliminates the problem of partial failure of the intermediate film caused by contact adhesion, while also providing effective protection for the patterned roller.

[0027] Furthermore, after the patterned roller separates from the intermediate film, the heat insulation component can quickly switch from an idle state to a shielding state located between the patterned roller and the intermediate film. This prevents the heat on the patterned roller from baking the intermediate film, avoids the intermediate film from sagging or wrinkling, and prevents the intermediate film from wrapping around the high-temperature patterned roller again. This provides targeted protection for the pattern on the surface of the patterned roller, preventing damage to the hard chrome / Teflon coating on the surface of the patterned roller, and reducing equipment maintenance costs and downtime.

[0028] This invention utilizes the cooperation between the power failure reset cylinder, the synchronizing rod, and the positioning head, combined with the tilting design of the carriage, to enable the patterned roller to automatically slide to the lower end of the carriage under the action of gravity after a power failure. The entire reset process can be completed autonomously without any external energy supply, perfectly adapting to the requirements of actual sudden power failure conditions. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the patterned roller, rubber roller, fixing frame, and power failure reset electric cylinder of the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of the fixing frame, slide, power failure reset electric cylinder and synchronizing rod of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the rubber roller, drive motor, and heat insulation component of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the heat insulation component, gear ring, gear rack, mounting bracket, and mounting bearing of the present invention;

[0034] Figure 6 This is a front view of the bearing housing and carriage of the present invention.

[0035] Figure 7 This is a three-dimensional structural diagram of the bearing housing and carriage of the present invention;

[0036] Figure 8 This is a partial cross-sectional three-dimensional structural diagram of the carriage of the present invention;

[0037] Figure 9 This is a front view schematic diagram of the bearing housing, fixing frame, slide, and power failure reset electric cylinder of the present invention;

[0038] Figure 10 This is a schematic diagram showing the location of the first inclined surface in this invention;

[0039] Figure 11 This is a schematic diagram of the structure of the buffer component of the present invention;

[0040] Figure 12 This is a cross-sectional three-dimensional structural diagram of the buffer component of the present invention;

[0041] Figure 13 This is a schematic diagram of the structure of the power failure reset electric cylinder, synchronizing rod, and positioning head of the present invention;

[0042] Figure 14 This is a front view schematic diagram of the electric cylinder, synchronizing rod, and positioning head of the present invention.

[0043] In the diagram: 1. Guide roller; 2. Cooling roller; 3. Intermediate film; 4. Patterned roller; 5. Rubber roller; 6. Bearing housing; 7. Drive motor; 8. Fixing frame; 9. Slide carriage; 901. Guide rod; 902. First end seat; 903. Second end seat; 904. Clamping plate; 905. Guide sleeve; 906. First inclined surface; 907. Sliding hole; 908. Stop block; 909. Screw; 910. Hexagonal head; 10. Power-off reset electric cylinder; 11. Synchronizer 12. Rod; 13. Positioning head; 14. Second inclined plane; 15. Heat insulation component; 16. Gear ring; 17. Gear rack; 18. Mounting bracket; 19. Mounting bearing; 10. Buffer component; 11. Outer cylinder; 12. Connecting rod; 13. Baffle; 14. Flexible pad; 15. First fixing plate; 16. First through hole; 17. Second through hole; 18. Piston; 18. Spring; 18. Second fixing plate. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figures 1-14 The present invention provides a technical solution:

[0046] A continuous embossing apparatus for the interlayer film of laminated glass includes a guide roller 1, a cooling roller 2, a first embossing mechanism, and a second embossing mechanism, wherein... Figure 1 Only one cooling roller 2 is shown in the figure. The cooling roller 2 is set between the first embossing mechanism and the second embossing mechanism and is used to cool the intermediate film 3 after the embossing operation of the first embossing mechanism. However, in the actual embossing operation, the intermediate film 3 needs to be cooled after each embossing operation. Of course, this is the prior art and will not be described in detail here.

[0047] Specifically, such as Figure 1 As shown, the intermediate film 3 passes through several guide rollers 1 in sequence around the first embossing mechanism, the cooling roller 2 and the second embossing mechanism, so that the two sides of the intermediate film 3 are embossed by the first embossing mechanism and the second embossing mechanism respectively.

[0048] In this technical solution, both the first embossing mechanism and the second embossing mechanism include a patterned roller 4 and a rubber roller 5. The working surface of the patterned roller 4 has a preset pattern processed by laser engraving, chemical etching, mechanical knurling, etc., and it can achieve the technical effect of embossing on the surface of the intermediate film 3 in conjunction with the rubber roller 5. The rubber roller 5 is the rubber roller in the prior art, and is not further limited here.

[0049] The rubber roller 5 is rotatably mounted on the main frame, which is fixedly installed. Similarly, the guide roller 1 and cooling roller 2 are also rotatably mounted on the main frame via bearings. The rubber roller 5 is driven to rotate by a motor, and during operation, the rotational speed of the rubber roller 5 is consistent with that of the patterned roller 4.

[0050] The patterned roller 4 is rotatably mounted on the slide 9 via the bearing seat 6. The slide 9 is fixedly mounted on the main frame via the fixing frame 8. The patterned roller 4 is driven to rotate by the drive motor 7. The drive motor 7 can be a servo motor. The drive motor 7 is existing technology and will not be described in detail here.

[0051] The carriage 9 is inclined and has a high end and a low end, from Figure 2 As can be seen, the end of the carriage 9 closest to the pattern roller 4 is the high end, and the end furthest from the pattern roller 4 is the low end.

[0052] During the embossing process, the patterned roller 4 is locked at the high end of the carriage 9 by the positioning mechanism to cooperate with the rubber roller 5 to emboss on the intermediate film 3. When the power is off, the positioning mechanism releases the locking of the patterned roller 4, allowing the patterned roller 4 to slide to the low end of the carriage 9 by gravity. The patterned roller 4 separates from the intermediate film 3, preventing the intermediate film 3 from melting and sticking to the surface of the patterned roller 4 due to prolonged contact between the high-temperature patterned roller 4 and the intermediate film 3 under power-off conditions. This also prevents damage to the hard chrome / Teflon coating on the surface of the patterned roller 4, reducing equipment maintenance costs and downtime.

[0053] Furthermore, a heat insulation element 13 is provided on one side of the circumferential surface of the patterned roller 4. The heat insulation element 13 can be made of ceramic fiber composite material, which has good heat insulation effect. Figure 1 and Figure 4 , Figure 5 As shown, when the patterned roller 4 is at the high end of the carriage 9, the heat insulation component 13 is in an idle state. When the patterned roller 4 is at the low end of the carriage 9, the heat insulation component 13 changes from an idle state to a blocking state between the patterned roller 4 and the intermediate film 3, thereby preventing the heat on the patterned roller 4 from baking the intermediate film 3, preventing the intermediate film 3 from sagging or wrinkling, and preventing the intermediate film 3 from being wrapped around the high-temperature patterned roller 4 again.

[0054] This invention rotatably mounts the patterned roller 4 onto the slide 9, with the slide 9 tilted. A positioning mechanism locks the patterned roller 4 in place. Under normal power conditions, the patterned roller 4, in conjunction with the rubber roller 5, performs stable embossing operations. In the event of a sudden power failure, the positioning mechanism quickly releases the lock on the patterned roller 4, allowing it to slide rapidly to the lower end of the slide 9 under gravity. This enables rapid and automatic separation of the patterned roller 4 from the intermediate film 3, completely preventing contact adhesion between the high-temperature patterned roller 4 and the intermediate film 3, thus eliminating the possibility of the intermediate film 3 sticking due to contact adhesion at the source. The partial scrapping problem is solved, while effectively protecting the patterned roller 4. Furthermore, after the patterned roller 4 separates from the intermediate film 3, the heat insulation component 13 can quickly switch from an idle state to a shielding state between the patterned roller 4 and the intermediate film 3. This prevents the heat on the patterned roller 4 from baking the intermediate film 3, prevents the intermediate film 3 from sagging or wrinkling, and prevents the intermediate film 3 from being wrapped around the high-temperature patterned roller 4 again. This allows for targeted protection of the pattern on the surface of the patterned roller 4, preventing damage to the hard chrome / Teflon coating on the surface of the patterned roller 4, and reducing equipment maintenance costs and downtime.

[0055] In this technical solution, the positioning mechanism includes a power failure reset cylinder 10, a synchronizing rod 11, and a positioning head 12. The power failure reset cylinder 10 is fixedly installed on the fixed frame 8. The power failure reset cylinder 10 is an industrial electric actuator that integrates a ball screw and a pre-tensioned reset spring. When energized, the motor drives the push rod to extend and lock, meeting the equipment's working position requirements. In the event of a sudden power failure, the motor loses power, the clutch mechanism unlocks, and the built-in spring releases its elastic force to drive the push rod to retract rapidly. No external power supply is required, achieving rapid automatic reset after power failure. Its reset speed is within 0.1s for a short stroke of 50mm.

[0056] Two positioning heads 12 are fixed at both ends of the synchronizing rod 11, respectively, for pressing and positioning both ends of the patterned roller 4. The synchronizing rod 11 is fixedly connected to the output shaft of the power failure reset cylinder 10.

[0057] When powered on, the output shaft of the power-off reset cylinder 10 is extended, causing the positioning head 12 to lock the patterned roller 4 at the high end of the carriage 9. At this time, the patterned roller 4 can cooperate with the rubber roller 5 to perform normal embossing on the intermediate film 3. When powered off, the output shaft of the power-off reset cylinder 10 retracts and resets, causing the positioning head 12 to release the lock on the patterned roller 4. The patterned roller 4 slides to the low end of the carriage 9 under the action of gravity.

[0058] In the above scheme, through the cooperation between the power failure reset cylinder 10, the synchronizing rod 11 and the positioning head 12, and combined with the tilting design of the slide 9, the patterned roller 4 can automatically slide to the lower end of the slide 9 under the action of gravity after the power failure. The entire reset process can be completed autonomously without any external energy supply, perfectly adapting to the actual requirements of sudden power failure.

[0059] In this technical solution, the slide 9 includes a first end seat 902 and a second end seat 903, and a guide rod 901 fixedly connected between the first end seat 902 and the second end seat 903. In this embodiment, two guide rods 901 are provided. The first end seat 902 is fixedly connected to the fixed frame 8 by welding or other means. A guide sleeve 905 is slidably disposed on the guide rod 901, and the guide sleeve 905 is fixedly connected to the bearing seat 6 via a clamping plate 904. In the energized state, the positioning mechanism locks the patterned roller 4 by limiting the position of the guide sleeve 905. Specifically, as shown... Figure 9 As shown, when energized, the positioning head 12 of the positioning mechanism presses the guide sleeve 905, thereby positioning the guide sleeve 905. Since the guide sleeve 905 is rotatably connected to the patterned roller 4 through the bearing seat 6, the patterned roller 4 is also positioned.

[0060] like Figure 4 and Figure 5 As shown, a rack 15 is fixedly installed on one side of the carriage 9 by bolts or other means, and gear rings 14 are fixed to both ends of the heat insulation component 13, with the gear rings 14 meshing with the rack 15; as Figure 5 As shown, a mounting bracket 16 is fixed on the bearing housing 6, and a gear ring 14 is rotatably connected to the mounting bracket 16 via a mounting bearing 17. The gear ring 14 is coaxially arranged with the patterned roller 4. During the sliding process of the patterned roller 4 along the slide 9, the gear ring 14 rotates under the constraint of the rack 15, thereby driving the heat insulation component 13 fixedly connected to it to rotate. This converts the heat insulation component 13 from an idle state to a shielding state located between the patterned roller 4 and the intermediate film 3, forming a physical barrier between the patterned roller 4 and the intermediate film 3, and preventing the high-temperature patterned roller 4 from baking the intermediate film 3.

[0061] Furthermore, in this technical solution, such as Figure 4 and Figure 5As shown, the heat insulation component 13 is a cylindrical shape coaxial with the patterned roller 4 but not circumferentially closed, with a gap between the heat insulation component 13 and the patterned roller 4 to prevent the inner surface of the heat insulation component 13 from causing wear on the pattern on the surface of the patterned roller 4. The central angle of the heat insulation component 13 covering the patterned roller 4 circumferentially is 220°, 250°, or 270°. The advantage of this design is that it can reduce the heat loss of the patterned roller 4 during the embossing process and improve the heat utilization rate. Furthermore, reflective tiles can be attached to the inner surface of the heat insulation component 13 to reflect heat and further reduce heat loss.

[0062] The top of one side of the positioning head 12 is provided with a second inclined surface 1201; the bottom of one side of the guide sleeve 905 is provided with a first inclined surface 906 that matches the second inclined surface 1201; during embossing operations, such as Figure 9 As shown, the first inclined surface 906 and the second inclined surface 1201 are partially attached together.

[0063] A screw 909 is rotatably mounted on the second end seat 903, with one end of the screw 909 protruding from one side of the second end seat 903. A sliding hole 907 is provided on the other side of the second end seat 903, and a stop block 908 is slidably mounted inside the sliding hole 907. The stop block 908 is threadedly connected to the screw 909. Rotating the screw 909 can drive the stop block 908 to move radially along the screw 909, thereby adjusting the position of the stop block 908. The side of the stop block 908 is provided with scale lines. In conjunction with the setting of the first inclined surface 906 and the second inclined surface 1201, it is convenient for the staff to adjust the gap between the patterned roller 4 and the rubber roller 5 according to the actual situation to adapt to the intermediate film 3 of different thicknesses.

[0064] When the positioning head 12 locks the patterned roller 4 at the high end of the carriage 9, the second inclined surface 1201 fits against the first inclined surface 906, and the guide sleeve 905 abuts against the stop block 908. In addition, a hexagonal head 910 is fixed to one end of the screw 909 that protrudes from one side of the second end seat 903, making it easy to turn the screw 909.

[0065] In this technical solution, a buffer component 18 is fixedly provided at one end of the guide sleeve 905 near the first end seat 902. The buffer component 18 is used to buffer the impact between the patterned roller 4 and the first end seat 902, thereby protecting the patterned roller 4.

[0066] The buffer component 18 includes an outer cylinder 1801 and a connecting rod 1802, both of which can be made of stainless steel. A first fixing plate 1805 and a second fixing plate 1810 are fixed to both ends of the outer cylinder 1801, respectively, to seal both ends of the outer cylinder 1801. A baffle 1803 is fixed to one end of the connecting rod 1802, and a flexible pad 1804, which can be made of rubber, is fixed to one end of the baffle 1803. The other end of the connecting rod 1802 slides through the first fixing plate 1805, extends into the interior of the outer cylinder 1801, and is fixed with a piston 1808. A spring 1809 is provided between the piston 1808 and the second fixing plate 1810. A second through hole 1807 is provided at one end of the outer cylinder 1801 near the second fixing plate 1810, and several first through holes 1806 are provided on the circumferential surface of the first fixing plate 1805.

[0067] When an impact occurs, the flexible pad 1804 can provide initial cushioning. Then, the impact force is transmitted to the connecting rod 1802 and the piston 1808, causing the piston 1808 to overcome the elastic force of the spring 1809 and move towards the second fixed plate 1810. This allows the air between the piston 1808 and the second fixed plate 1810 to be slowly discharged through the second through hole 1807, thereby achieving a damping effect. This ensures the cushioning effect while preventing the cushioning component 18 from repeatedly bouncing due to the extension and contraction of the spring 1809.

[0068] A continuous embossing method for interlayer films in laminated glass, the continuous embossing method being based on the aforementioned continuous embossing apparatus for interlayer films in laminated glass, includes the following steps:

[0069] S1. The intermediate film 3 is passed around the first embossing mechanism, the cooling roller 2 and the second embossing mechanism in sequence by several guide rollers 1;

[0070] S2. Start the drive motor 7 to drive the pattern rollers 4 of the first embossing mechanism and the second embossing mechanism to rotate, and start the embossing operation on both sides of the intermediate film 3.

[0071] S3. When the power is off, the drive motor 7 stops rotating, and the power failure reset cylinder 10 will retract and reset its output shaft after the power is off, so that the positioning head 12 releases the lock on the patterned roller 4, the patterned roller 4 slides to the lower end of the carriage 9, and at the same time, the toothed ring 14 will roll along the toothed rack 15, driving the heat insulation component 13 from the idle state to the blocking state located between the patterned roller 4 and the intermediate film 3.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous embossing apparatus for interlayer films for laminated glass, characterized by, It includes guide rollers, cooling rollers, a first embossing mechanism, and a second embossing mechanism. The intermediate film passes around the first embossing mechanism, the cooling roller, and the second embossing mechanism in sequence by several guide rollers, so that the two sides of the intermediate film can be embossed by the first embossing mechanism and the second embossing mechanism respectively. Both the first embossing mechanism and the second embossing mechanism include a pattern roller and a rubber roller; the rubber roller is rotatably mounted on the main frame and driven to rotate by a motor; the pattern roller is rotatably mounted on a slide frame via a bearing seat, the slide frame is fixedly mounted on the main frame via a fixing frame, and the pattern roller is driven to rotate by a drive motor; The carriage is tilted, and the patterned roller is locked at the high end of the carriage by a positioning mechanism to cooperate with the rubber roller to emboss on the intermediate film. When the power is off, the positioning mechanism releases the locking of the patterned roller, allowing the patterned roller to slide to the low end of the carriage by gravity, and the patterned roller separates from the intermediate film. A heat insulation component is provided on one side of the circumferential surface of the patterned roller. When the patterned roller is located at the high end of the carriage, the heat insulation component is in an idle state. When the patterned roller is located at the low end of the carriage, the heat insulation component changes from an idle state to a blocking state located between the patterned roller and the intermediate film. The positioning mechanism includes a power-off reset electric cylinder, a synchronizing rod, and positioning heads. The power-off reset electric cylinder is fixedly mounted on a fixed frame, and the two positioning heads are respectively fixed at both ends of the synchronizing rod. The synchronizing rod is fixedly connected to the output shaft of the power-off reset electric cylinder. When powered on, the output shaft of the power failure reset cylinder is extended, and the positioning head locks the pattern roller at the high end of the carriage; when powered off, the output shaft of the power failure reset cylinder retracts and resets, the positioning head releases the lock on the pattern roller, and the pattern roller slides to the low end of the carriage. The carriage includes a first end seat and a second end seat, and a guide rod fixedly connected between the first end seat and the second end seat. A guide sleeve is slidably disposed on the guide rod, and the guide sleeve is fixedly connected to the bearing seat through a clamping plate. When powered on, the positioning mechanism locks the patterned roller by limiting the position of the guide sleeve; A rack is fixedly installed on one side of the carriage, and a gear ring is fixed at both ends of the heat insulation component. The gear ring meshes with the rack. A mounting bracket is fixed on the bearing seat, and the gear ring is rotatably connected to the mounting bracket through a mounting bearing. The gear ring is coaxially arranged with the pattern roller.

2. The continuous embossing device for interlayer film in laminated glass according to claim 1, characterized in that, The heat insulation component is a cylindrical shape that is coaxial with the patterned roller and not closed circumferentially, and there is a gap between the heat insulation component and the patterned roller. The central angle of the heat insulation component covering the patterned roller circumferentially is 220°-270°.

3. The continuous embossing apparatus for laminated glass interlayer film according to claim 1, characterized by, The top of one side of the positioning head is provided with a second inclined surface; the bottom of one side of the guide sleeve is provided with a first inclined surface that matches the second inclined surface; A screw is rotatably mounted on the second end seat, with one end of the screw protruding from one side of the second end seat; a sliding hole is provided on the other side of the second end seat, and a stop block is slidably mounted inside the sliding hole, with the stop block threadedly connected to the screw. When the positioning head locks the patterned roller at the high end of the carriage, the second inclined surface fits against the first inclined surface, and the guide sleeve abuts against the stop block.

4. The continuous embossing apparatus for interlayer film in laminated glass according to claim 3, characterized in that, The end of the screw that protrudes from one side of the second end seat is fixed with a hexagonal head.

5. The continuous embossing apparatus for laminated glass interlayer film according to claim 1, characterized by, A buffer component is fixedly provided at one end of the guide sleeve near the first end seat. The buffer component includes an outer cylinder and a connecting rod. A first fixing plate and a second fixing plate are fixed at both ends of the outer cylinder, respectively. A baffle is fixed at one end of the connecting rod, and a flexible pad is fixed at one end of the baffle. The other end of the connecting rod slides through the first fixing plate and extends into the interior of the outer cylinder and is fixed with a piston. A spring is provided between the piston and the second fixing plate. A second through hole is opened at one end of the outer cylinder near the second fixing plate. A plurality of first through holes are opened on the circumferential surface of the first fixing plate.

6. Continuous embossing method for interlayer films for laminated glass, characterized in that, The continuous embossing method, based on the continuous embossing apparatus for interlayer film of laminated glass according to any one of claims 1-5, includes the following steps: S1. The intermediate film is passed sequentially around the first embossing mechanism, the cooling roller and the second embossing mechanism via several guide rollers; S2. Start the drive motor to drive the pattern rollers of the first and second embossing mechanisms to rotate, and begin embossing the two sides of the intermediate film. S3. When the power is off, the drive motor stops rotating, and the power failure reset cylinder will retract and reset its output shaft after the power is off, so that the positioning head releases the lock on the patterned roller, the patterned roller slides to the lower end of the carriage, and at the same time, the toothed ring will roll along the rack, driving the heat insulation component to change from an idle state to a blocking state located between the patterned roller and the intermediate film.

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