Double-sided embossing device

Abstract

The present invention discloses a double-sided embossing device, which belongs to the technical field of foam material processing equipment, and includes a frame, and also includes: a conveying mechanism, which is arranged on the frame and includes a circulating conveyor belt for conveying the foam material to the embossing mechanism; a heating mechanism, which is arranged on the frame and is located above and below the conveyor belt, and is used to preheat the upper surface and lower surface of the foam material; an embossing mechanism, which is arranged on the frame and is provided with a detachable texture film sleeve, which can press textures on both the upper surface and the lower surface of the preheated foam material; a control mechanism, which is electrically connected to the conveying mechanism, the heating mechanism, and the embossing mechanism respectively. The double-sided embossing device provided by the present invention can heat the upper and lower surfaces of the foam material during the conveying process, and reduce the pulling tension it is subjected to when moving, thereby avoiding breakage during preheating; by providing a detachable texture film sleeve, the decorative texture can be quickly changed without replacing the upper embossing roller.

Description

Technical Field

[0001] The invention relates to the technical field of foam material processing equipment, and in particular to an improvement of a double-sided embossing device. Background Art

[0002] Surface embossing of existing foam materials, such as PVC and TPE, is typically achieved using an embossing device. For example, patent number CN202010674305.6 describes a new double-sided embossing device for household decorative panels. The device's main structure comprises a preheating roller and an embossing roller. During operation, the foam material to be embossed is first preheated by the preheating roller and then embossed by the embossing roller, achieving double-sided embossing. However, the above-mentioned double-sided embossing device has the following defects: (1) Under normal circumstances, the bottom surface texture of the double-sided embossing is an anti-slip texture, and the surface texture is a decorative texture. The anti-slip texture of the bottom surface usually does not change, while the decorative texture of the surface is usually changed according to customer needs. In the prior art, in order to change the surface texture, a roller replacement method is usually adopted, that is, a plurality of spare rollers with different textures are prepared. When the surface texture changes, the roller with the corresponding texture is replaced. This is not only troublesome to operate, but also costly; (2) The preheating roller is a driven roller, and the foam material to be embossed relies entirely on the traction of the embossing roller to move forward. Therefore, it is subjected to a large tension, which makes the heated foam material prone to breakage; (3) It uses a preheating roller for preheating. Since the contact time between the preheating roller and the foam material to be embossed is short, the preheating effect is poor.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a double-sided embossing device, aiming to solve the defects in the prior art of embossing the surface of the foam material, such as single decorative texture, easy breakage during preheating and poor embossing effect.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A double-sided embossing device, comprising a frame, and further comprising:

[0007] A conveying mechanism, which is arranged on the frame and includes a circulating conveyor belt, and is used to convey the foaming material to the embossing mechanism;

[0008] A heating mechanism is provided on the frame and is located above and below the conveyor belt, and is used to preheat the upper surface and the lower surface of the foaming material;

[0009] An embossing mechanism is provided on the frame and is provided with a detachable texture film sleeve, which can emboss the texture on both the upper and lower surfaces of the preheated foam material;

[0010] The control mechanism is electrically connected to the conveying mechanism, the heating mechanism, and the embossing mechanism respectively.

[0011] In the double-sided embossing device, the embossing mechanism includes an upper embossing roller, a lower embossing roller, and an embossing drive motor for driving the upper and lower embossing rollers to rotate synchronously relative to each other. The embossing drive motor is electrically connected to the control mechanism, and the texture film sleeve is arranged outside the upper embossing roller.

[0012] In the double-sided embossing device, the device is also provided with at least one first tensioning roller for tensioning the textured film sleeve, and the textured film sleeve is sleeved outside the upper embossing roller and the first tensioning roller.

[0013] In the double-sided embossing device, the conveying mechanism further includes a driving roller, a driven roller and a conveyor belt motor for driving the driving roller to rotate. The conveyor belt motor is electrically connected to the control mechanism, and the conveyor belt is wound around the driving roller and the driven roller.

[0014] In the double-sided embossing device, the conveyor belt is a grid-shaped conveyor belt.

[0015] The double-sided embossing device further includes a sensing mechanism for sensing whether the conveyor belt is deviating and a correction component for correcting the deviation of the conveyor belt. The sensing mechanism and the correction component are both electrically connected to the control mechanism.

[0016] In the double-sided embossing device, the sensing mechanism includes a damping rocker and a trigger switch; the damping rocker is movably connected to the frame and can swing and squeeze and touch the trigger switch when subjected to the thrust of the conveyor belt; the trigger switch is electrically connected to the control mechanism.

[0017] In the double-sided embossing device, the correction component includes two third tensioning rollers arranged parallel to the active roller, a second slide rail arranged on the frame, a second slide seat slidably connected to the second slide rail, and a cylinder transmission-connected to the second slide seat. One end of the two third tensioning rollers is fixed on the second slide seat, and the conveyor belt is wound around the two third tensioning rollers.

[0018] In the double-sided embossing device, an automatic unwinding mechanism is also provided on the frame, and the automatic unwinding mechanism includes a reel with a fifth gear at the end, a U-shaped frame provided on the frame, and a reduction motor for driving the reel to rotate. The output end of the reduction motor and the end of the reel are both provided with gears, and the two gears are meshed.

[0019] In the double-sided embossing device, a limiting mechanism is also provided on the frame, which includes a limiting frame, two rollers arranged on the two long sides of the limiting frame, and two rotating shafts arranged on the two short sides of the limiting frame. The two rotating shafts are rotatably connected to the frame.

[0020] Beneficial effects:

[0021] The present invention provides a double-sided embossing device. By arranging a conveying mechanism and a heating mechanism, the upper and lower surfaces of the foaming material can be heated during the conveying process, which not only improves the preheating effect of the foaming material, but also reduces the pulling tension of the foaming material, thereby avoiding the foaming material from breaking during preheating; by arranging a detachable texture film sleeve, the decorative texture can be quickly changed without replacing the upper embossing roller, thereby meeting the different needs of customers; and the texture film sleeve can also realize the pressing of long non-repetitive textures, thereby solving the problem of the relatively single decorative texture in existing products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of one preferred embodiment of the double-sided embossing device provided by the present invention.

[0023] Figure 2 This is a schematic diagram of a preferred embossing mechanism structure.

[0024] Figure 3 Schematic diagram of the structure when the texture film sleeve is unfolded.

[0025] Figure 4 Schematic diagram of the structure of the damping pendulum.

[0026] Figure 5 It is a structural diagram of the limit frame.

[0027] Figure 6 Schematic diagram of the structure of the limit frame and damping block.

[0028] Markings in the accompanying drawings: 1-frame, 2-embossing mechanism, 3-conveying mechanism, 4-heating mechanism, 5-conveyor belt, 6-driving roller, 7-driven roller, 8-conveyor belt motor, 9-upper embossing roller, 10-lower embossing roller, 11-embossing drive motor, 12-first gear, 13-first chain, 14-rotary joint, 15-oil pipeline, 16-second tensioning roller, 17-gantry, 18-first slide rail, 19-first slider, 20-first screw rod, 21-first hand wheel, 23-textured film sleeve, 24-bonding Part, 25-first tensioning roller, 27-sensing mechanism, 28-correction assembly, 29-damping rocker, 30-trigger switch, 31-third tensioning roller, 32-second slide rail, 33-second slide seat, 34-cylinder, 35-fixed frame, 36-third slider, 37-second screw rod, 38-second hand wheel, 39-U-shaped frame, 40-reduction motor, 41-limiting frame, 42-roller, 43-third gear, 44-damping block, 45-coil, 46-spring, 47-foaming material, 48-limiting mechanism. DETAILED DESCRIPTION

[0029] The present invention provides a double-sided embossing device. To make the purpose, technical solution, and effects of the present invention more clear and explicit, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0030] See also Figure 1 A preferred embodiment of the present invention provides a double-sided embossing device, which includes a frame 1 with a rectangular frame structure, an embossing mechanism 2 arranged at the end of the frame 1, and a control mechanism (not shown in the accompanying drawings) for controlling the operation of the embossing mechanism 2. The embossing mechanism 2 is used to emboss the upper and lower surfaces of the foam material 47 to be embossed. The foam material to be embossed can specifically be a foam sheet or roll made of PVC, TPE, EVA or the like.

[0031] like Figure 1 As shown, the double-sided embossing device of the above structure also includes a conveying mechanism 3 for conveying the foaming material and a heating mechanism 4 for preheating the upper and lower surfaces of the foaming material 47. The conveying mechanism 3 and the heating mechanism 4 are both electrically connected to a control mechanism, which controls the switching and power adjustment of the conveying mechanism 3 and the heating mechanism 4. The conveying mechanism 3 is disposed on the frame 1 and located in front of the embossing mechanism 2. It includes a conveyor belt 5, a driving roller 6 and a driven roller 7 for driving the conveyor belt 5 to rotate, and a conveyor belt motor 8 for driving the driving roller 6 to rotate. The conveyor belt 5 rotates in a circular motion, conveying the foaming material to be embossed from one end of the frame 1 to the embossing mechanism 2. The heating mechanism 4 includes two electric heating screens or electric heating plates disposed above and below the upper surface of the conveyor belt 5. These heating screens can heat both the upper and lower surfaces of the foaming material on the conveyor belt 5, thereby rapidly softening it and facilitating embossing by the embossing mechanism 2.

[0032] The double-sided embossing device of the above structure, by providing heating mechanisms 4 above and below the conveyor belt 5, can simultaneously heat the upper and lower surfaces of the foamed material during conveyance, resulting in uniform heating of the upper and lower surfaces. Compared to preheating rollers, the heating time is longer, allowing for more complete preheating of the foamed material. Furthermore, by providing the conveyor belt 5, the foamed material to be embossed can be transported to the embossing mechanism 2 via the conveyor belt 5, thereby eliminating the need for the traction force of the embossing mechanism 2 to move the foamed material. This reduces tension in the foamed material during preheating, avoids breakage or deformation caused by excessive tension, and thus improves the yield rate.

[0033] It should be noted that, during operation, the moving speed of the conveyor belt 5 can be the same as or slightly less than the pulling speed of the embossing mechanism 2. When the speed of the conveyor belt 5 is slightly less than the pulling speed of the embossing mechanism 2, the foaming material will not break and can be better stretched.

[0034] like Figure 1 As shown, in a preferred embodiment, the conveying mechanism 3 also includes one or more second tensioning rollers 16 for tensioning the conveyor belt 5. The second tensioning rollers 16 are all mounted parallel to the frame 1, which can tension the conveyor belt 5 so that it can rotate along with the active roller 6. At the same time, a larger spacing can be formed between the upper and lower surfaces of the conveyor belt 5, which is convenient for the installation of the heating mechanism 4.

[0035] In a preferred embodiment, in order to facilitate the heating mechanism 4 to heat the lower surface of the foaming material, the conveyor belt 5 is a grid-shaped conveyor belt 5, preferably a heat-resistant grid-shaped conveyor belt 5. When the foaming material passes through the heating mechanism 4 along with the conveyor belt 5, the heating mechanism 4 arranged under the conveyor belt 5 can heat the foaming material through the grid, thereby ensuring a good preheating effect of the foaming material.

[0036] like Figure 1 As shown, in a preferred embodiment, the embossing mechanism 2 includes an upper embossing roller 9 and a lower embossing roller 10 disposed in an upper and lower position relative to each other at one end of the frame 1. The roller shafts of the upper embossing roller 9 and the lower embossing roller 10 have the same diameter, and an embossing drive motor 11 for driving the upper embossing roller 9 and the lower embossing roller 10 to rotate is provided at one end of the upper embossing roller 9 and the lower embossing roller 10. A first gear 12 is provided at the ends of the rotating shafts of the upper embossing roller 9 and the lower embossing roller 10 and at the output end of the embossing drive motor 11. The first gear 12 meshes with a first chain 13. During operation, the upper embossing roller 9 and the lower embossing roller 10 are driven to rotate relative to each other by the embossing drive motor 11.

[0037] Further, such as Figure 2 As shown, in order to enable the upper embossing roller 9 and the lower embossing roller 10 to heat the foaming material, the ends of the upper embossing roller 9 and the lower embossing roller 10 are also connected to the oil pipe 15 through a set rotary joint 14, and the oil pipe 15 is connected to the hot oil tank (not drawn in the drawings). Through the set rotary joint 14, it can be achieved that while the upper embossing roller 9 and the lower embossing roller 10 rotate, the hot oil can smoothly enter and exit the upper embossing roller 9 and the lower embossing roller 10, thereby heating the upper embossing roller 9 and the lower embossing roller 10 and improving the embossing effect.

[0038] like Figure 2As shown, due to the varying thicknesses of the foamed materials, the spacing between the upper embossing roller 9 and the lower embossing roller 10 also varies. Therefore, when embossing foamed materials of varying thicknesses, the distance between the upper embossing roller 9 and the lower embossing roller 10 needs to be adjusted. To improve the adaptability of the device, the frame 1 is further provided with a first adjustment mechanism for adjusting the distance between the upper embossing roller 9 and the lower embossing roller 10. Specifically, the first adjustment mechanism includes two portal frames 17 disposed relative to each other on the frame 1. The inner sidewalls of the portal frames 17 form first slide rails 18. A first slider 19 is provided within the portal frames 17, which can slide up and down along the first slide rails 18. A first screw rod 20 is rotatably connected to the top of the first slider 19. A threaded hole is provided at the top of the portal frame 17, through which the top end of the screw rod passes. A first handwheel 21 is also provided. The rotating shaft of the upper embossing roller 9 is rotatably connected to the first slider 19. During operation, the position height of the first slider 19 can be adjusted by rotating the first hand wheel 21 , thereby adjusting the position height of the upper embossing roller 9 so that the distance between the upper embossing roller 9 and the lower embossing roller 10 meets the requirements of foam materials 47 of different thicknesses.

[0039] To emboss textures on both the upper and lower surfaces of the foam material 47, the upper and lower embossing rollers 9 and 10 are provided with decorative and anti-slip textures, respectively. The decorative texture provided by the upper embossing roller 9 embosses a decorative pattern on the upper surface of the foam material, while the anti-slip texture provided by the lower embossing roller 10 embosses an anti-slip texture on the bottom surface of the foam material. During operation, the upper and lower embossing rollers 9 and 10 work together to emboss textures on both the upper and lower surfaces of the foam material.

[0040] However, since different customers have different requirements for decorative textures, in order to meet the diverse needs of customers, the existing technology usually sets corresponding upper embossing rollers 9 for different decorative textures. When in use, the upper embossing rollers 9 with different decorative textures are replaced as needed to meet the customer's needs for decorative textures. However, disassembling and installing the upper embossing roller 9 is very troublesome, time-consuming and labor-intensive, and will increase the difficulty of production and reduce production efficiency. In this regard, in a preferred embodiment, as Figure 2 As shown, the embossing mechanism 2 also includes a texture film sleeve 23 that is sleeved on the outside of the upper embossing roller 9. The surface of the texture film sleeve 23 is provided with a convex or concave decorative texture, and the decorative texture is equivalent to the decorative texture etched on the upper embossing roller 9. Therefore, when the texture film sleeve 23 is sleeved on the outside of the upper embossing roller 9, the decorative texture in the texture film sleeve 23 can be transferred to the surface of the foaming material 47 through the pressing of the upper embossing roller 9, thereby realizing embossing of the foaming material.

[0041] Specifically, such as Figure 3As shown, the texture film sleeve 23 has a rectangular structure when unfolded, which is adapted to the shape and size of the outer circumference of the upper embossing roller 9 when unfolded. Adhesive portions are provided on two opposite sides of the texture film sleeve 23. Therefore, when the texture film sleeve 23 is sleeved on the surface of the upper embossing roller 9, it can be adhered to each other through the adhesive structure and can be stably fixed to the outer circumference of the upper embossing roller 9. During use, there is no need to disassemble the upper embossing roller 9. By replacing different texture film sleeves 23, the surface texture of the upper embossing roller 9 can be changed, and decorative textures of different shapes can be pressed to meet the needs of different customers. It should be noted that when using the texture film sleeve 23 to construct a texture for the upper embossing roller 9, the surface of the upper embossing roller 9 is preferably smooth, otherwise it will easily affect the texture transfer of the texture film sleeve 23 to the surface of the foam material. In order to prevent the texture film sleeve 23 from slipping, fixing rings can be provided at both ends of the upper embossing roller 9 to make the texture film sleeve 23 more firmly fixed and prevent slipping.

[0042] However, for some embossings that are not single repeating textures, such as pressing a complete scroll-like embossing (i.e., non-repetitive texture) on a yoga mat or exercise mat whose length is greater than the outer circumference of the upper embossing roller 9, since the length of the scroll exceeds the outer circumference of the upper embossing roller 9, an upper embossing roller 9 of a corresponding diameter must be provided to achieve this. However, once the diameter of the upper embossing roller 9 is changed, the frame of the entire machine must be changed, which is not only costly but also very troublesome. In this regard, in some embodiments, the texture film sleeve 23 is a texture film sleeve 23 with an unfolded length greater than the outer circumference of the upper embossing roller 9, and at least one first tensioning roller 25 parallel to the upper embossing roller 9 is provided above the upper embossing roller 9, such as Figure 1 As shown, the textured film sleeve 23 is tensioned over the upper embossing roller 9 and the first tensioning roller 25, allowing its surface to stretch and rotate with the upper embossing roller 9. During operation, the textured film sleeve 23 is stretched and attached to the upper embossing roller 9 by the action of the first tensioning roller 25. As the upper embossing roller 9 rotates, the textured film sleeve 23 rotates with it, transferring the decorative texture on the surface of the textured film sleeve 23 to the foam material, thereby embossing the foam material. Because the textured film sleeve 23 rotates continuously with the upper embossing roller 9, it can continuously emboss the foam material with a non-single, repeating pattern. In practice, the textured film sleeve 23 can be provided in different lengths to meet customer needs for different decorative textures. Since the textured film sleeve 23 is typically made of a heat-resistant film with a special texture on its surface, it is inexpensive to manufacture and easy to replace, meeting customer needs while significantly reducing production costs.

[0043] However, if Figure 1As shown, the conveyor belt 5 may deviate during its circular rotation, thereby affecting the normal conveyance of the foam material, for example, causing the foam material to deviate from the normal track, resulting in the embossing also being deviated. In this regard, in a preferred embodiment, the device further includes a sensing mechanism 27 for sensing whether the conveyor belt 5 has deviated, and a correction component 28 for correcting the deviation of the conveyor belt 5. The sensing mechanism 27 and the correction component 28 are both electrically connected to the control mechanism. When the sensing mechanism 27 senses that the conveyor belt 5 has deviated, it transmits a corresponding signal to the control mechanism. The control mechanism activates the correction component 28 based on the received signal to correct the deviation and put the conveyor belt 5 back on track.

[0044] The sensing mechanism 27 may be a light-sensitive or touch-sensitive sensing mechanism 27, such as an infrared sensing mechanism 27. However, when the conveyor belt 5 is in a grid shape, the infrared sensing mechanism 27 may be relatively insensitive and have insufficient sensitivity. Figure 1 As shown, the sensing mechanism 27 is a sensing mechanism 27 triggered by touch, specifically: the sensing mechanism 27 includes a damping rocker 29 and a trigger switch 30, and the damping rocker 29 is L-shaped, as shown in FIG. Figure 4 As shown, the damping rocker 29 comprises an integrally formed swing arm and connecting arm, movably connected to the frame 1 via the connecting arm. When the conveyor belt 5 is not deviating, the swing arm of the damping rocker 29 is close to the edge of the conveyor belt 5 but does not contact it. When the conveyor belt 5 deviates, it contacts and pushes the damping rocker 29 to swing. The trigger switch 30 is mounted on the frame 1. When the damping rocker 29 swings to a certain position, the swing arm of the damping rocker 29 contacts and presses the trigger switch 30. Furthermore, the damping rocker 29 is provided with a spring 46 at the connection between the connecting arm and the frame 1 for returning the swing arm to its original position. When the swing arm is not pushed by the conveyor belt 5, the spring 46 resets the swing arm. During operation, when the conveyor belt 5 gradually deviates, its edge will gradually approach the damping rocker 29. When the deviate causes the damping rocker 29 to swing and touch the trigger switch 30, the control mechanism will start the correction component 28 to correct the deviation and return the conveyor belt 5 to the correct track.

[0045] In a preferred embodiment, Figure 1As shown, the deviation correction assembly 28 includes two third tensioning rollers 31 arranged parallel to the active roller 6, a second slide rail 32 arranged on the frame 1, a second slide 33 slidably connected to the second slide rail 32, and a cylinder 34 drivingly connected to the second slide 33. One end of the two third tensioning rollers 31 is fixed to the second slide 33, and the conveyor belt 5 is wound around the two third tensioning rollers 31. The second slide rail 32 and the second slide 33 are arranged on the same side of the frame 1 as the sensing mechanism 27. Under the push of the cylinder 34, the second slide 33 will move along the second slide rail 32, causing the two third tensioning rollers 31 to deviate and no longer be parallel to the active roller 6, thereby causing the conveyor belt 5 to be tensioned to different degrees. Therefore, when the conveyor belt 5 continues to move, the tilted third tensioning roller 31 will cause the conveyor belt 5 to move toward the center, thereby returning the conveyor belt 5 to the right track.

[0046] By providing the sensing mechanism 27 and the deviation-correcting assembly 28, a deviated conveyor belt 5 can be brought back on track, thereby preventing the conveyor belt 5 from deviating from the foam material to be embossed, ensuring that the embossing mechanism 2 embosses the foam material in the correct position, and improving the yield rate. In specific implementations, the deviation-correcting frequency can be adjusted according to actual needs, and the tilt of the third tensioning roller 31 can be adjusted according to the degree of deviation of the conveyor belt 5 to further improve the alignment accuracy of the embossing mechanism 2 and enhance the embossing quality.

[0047] Of course, in addition to using the deviation correction component 28 to correct the conveyor belt 5, in order to minimize the deviation of the conveyor belt 5, the device is also provided with a second adjustment mechanism. Through the second adjustment mechanism, the parallelism between the active roller 6 and the driven roller 7 can be adjusted, as well as the distance between the active roller 6 and the driven roller 7 can be adjusted to adjust the tension of the conveyor belt 5, thereby reducing the possibility of the conveyor belt 5 deviating. Specifically, Figure 1 As shown, the frame 1 is provided with two opposing fixed frames 35. A third slide rail is formed in the upper and lower interiors of the fixed frames 35. A third slider 36 is provided on the third slide rail. The third slider 36 can move along the third slide rail. A bearing is provided at the center of the third slider 36. The rotating shaft of the driving wheel is connected to the bearing. The side wall of the fixed frame 35 is also provided with a threaded hole. A second screw rod 37 is threadedly connected to the threaded hole. One end of the second screw rod 37 is rotatably connected to the third slider 36. The other end of the second screw rod 37 extends out of the fixed frame 35 through the threaded hole. A second hand wheel 38 is provided at the end. When installing the driving roller 6, the third slider 36 can be moved along the third slide rail by rotating the second hand wheel 38, thereby keeping the driving wheel and the driven wheel parallel to each other, so that the force on the conveyor belt 5 is evenly distributed. At the same time, the distance between the driving wheel and the driven wheel can be adjusted to achieve the effect of tensioning the conveyor belt 5.

[0048] When the foaming material is fed in the form of a coil 45, if the unwinding is performed only by the traction of the conveyor belt 5, the traction force is likely to increase. In particular, when the coil 45 is heavy, the traction force is greatly increased by pulling the conveyor belt 5 to unwind. Figure 1 As shown, the frame 1 is also provided with an automatic unwinding mechanism in front. The automatic unwinding mechanism includes two oppositely arranged U-shaped frames and a reduction motor 40. The roller of the coil 45 is mounted on the U-shaped frame. A second gear is provided at the output end of the reduction motor 40 and the end of the roller of the coil 45. Through the engagement of the two second gears, the reduction motor 40 drives the coil 45 to rotate and unwind. During unwinding, the rotation speed of the reduction motor 40 is adjusted so that the unwinding speed of the coil 45 is the same as or slightly less than the speed of the conveyor belt 5. This reduces tension while allowing the unwound foam material to stretch.

[0049] However, since the coil 45 is directly conveyed by the conveyor belt 5 after unwinding, it is easy to deviate during transportation, resulting in inaccurate embossing position. Figure 1 、 Figure 5 As shown, the device is also equipped with a limiting mechanism 48. The limiting mechanism 48 comprises a limiting frame 41 mounted on the frame 1. The long side of the limiting frame 41 is parallel to the driving roller 6, and its length is less than the width of the conveyor belt 5 and greater than the width of the coil 45. The two short sides of the limiting frame 41 are provided with rotating shafts, which are rotatably connected to the frame 1 via the rotating shafts. Two parallel rollers 42 are also provided on the two long sides of the limiting frame 41. During operation, after unwinding, the foaming material coil 45 first passes through the limiting frame 41 before being placed on the conveyor belt 5. Because the limiting frame 41 limits the range of left and right movement of the foaming material, it is prevented from swerving during conveyance.

[0050] However, if the limit frame 41 is freely rotatable, when the foaming material passes through the limit frame 41, due to the tension, the limit frame 41 will swing until only one roller 42 contacts the foaming material, thereby reducing the tensioning effect on the sheet. Figure 5 、 Figure 6As shown, a third gear 43 is mounted on the rotating shaft at one end of the limit frame 41. A damping block 44 is installed on the frame 1 corresponding to the third gear 43 to limit the rotation direction of the third gear 43. The damping block 44 abuts one of the teeth on the third gear 43. More specifically, the damping block 44 is positioned on the side of the third gear 43 near the conveyor belt 5, with its end abutting against a tooth on the upper portion of the third gear 43, near the driving pulley. This prevents the third gear 43 from rotating in the same direction as the driving roller 6, forcing the limit frame 41 to rotate only in the direction opposite to that of the driving pulley. During operation, the limit frame 41 is tilted, and the foaming material is first passed around the lower roller 42, then through the limit frame 41, and then around the upper surface of the upper roller 42 before being placed on the conveyor belt 5. During transport, the foaming material can simultaneously contact the surfaces of both rollers 42, thus tensioning the foaming material. Furthermore, by adjusting the inclination angle of the limiting frame 41 , the foaming material can have different tension levels.

[0051] To sum up, the double-sided embossing device of the present invention, by providing a conveying mechanism and a heating mechanism, can heat the upper and lower surfaces of the foam material during the conveying process, which not only improves the preheating effect of the foam material, but also reduces the pulling tension of the foam material, thereby avoiding the foam material from breaking during preheating; by providing a textured film sleeve on the outer surface of the upper embossing roller, the decorative texture can be quickly changed without replacing the upper embossing roller, thereby meeting the different needs of customers; and, the provided textured film sleeve can also realize the pressing of long non-repeating textures, thereby solving the problem of the existing single decorative texture; by providing a correction component, the conveyor belt can be prevented from deviating during the conveying process, thereby making the embossing alignment more precise.

[0052] In the description of the embodiments of the present invention, it should be noted that the terms "inside," "outside," "upper," "lower," "left," "right," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0054] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A double-sided embossing device, comprising a frame, characterized in that: Also includes: A conveying mechanism, which is arranged on the frame and includes a circulating conveyor belt, and is used to convey the foaming material to the embossing mechanism; A heating mechanism is provided on the frame and is located above and below the conveyor belt, and is used to preheat the upper surface and the lower surface of the foaming material; An embossing mechanism is provided on a machine frame and is provided with a detachable texture film sleeve, which can emboss textures on both the upper and lower surfaces of the preheated foam material; the embossing mechanism includes an upper embossing roller, a lower embossing roller, and an embossing drive motor for driving the upper and lower embossing rollers to rotate synchronously relative to each other, the embossing drive motor is electrically connected to a control mechanism, and the texture film sleeve is provided outside the upper embossing roller; a control mechanism electrically connected to the conveying mechanism, the heating mechanism, and the embossing mechanism respectively; The device is further provided with at least one first tensioning roller for tensioning the textured film sleeve, wherein the textured film sleeve is sleeved outside the upper embossing roller and the first tensioning roller; It also includes a sensing mechanism for sensing whether the conveyor belt is deviating and a correction component for correcting the deviation of the conveyor belt. The sensing mechanism and the correction component are both electrically connected to the control mechanism.

2. The double-sided embossing device according to claim 1, characterized in that: The conveying mechanism further includes a driving roller, a driven roller and a conveyor belt motor for driving the driving roller to rotate. The conveyor belt motor is electrically connected to the control mechanism, and the conveyor belt is wound around the driving roller and the driven roller.

3. The double-sided embossing device according to claim 2, characterized in that: The conveyor belt is a grid-shaped conveyor belt.

4. The double-sided embossing device according to claim 1, characterized in that: The sensing mechanism includes a damping rocker and a trigger switch; the damping rocker is movably connected to the frame and can swing and squeeze and touch the trigger switch when subjected to the thrust of the conveyor belt; the trigger switch is electrically connected to the control mechanism.

5. The double-sided embossing device according to claim 1, characterized in that: The correction assembly includes two third tensioning rollers arranged parallel to the active roller, a second slide rail arranged on the frame, a second slide seat slidably connected to the second slide rail, and a cylinder transmission-connected to the second slide seat. One end of the two third tensioning rollers is fixed on the second slide seat, and the conveyor belt is wound around the two third tensioning rollers.

6. The double-sided embossing device according to claim 1, characterized in that: The frame is also provided with an automatic unwinding mechanism, which includes a reel with a third gear at the end, a U-shaped frame arranged on the frame, and a reduction motor for driving the reel to rotate. The output end of the reduction motor and the end of the reel are both provided with gears, and the two gears are meshed.

7. The double-sided embossing device according to claim 6, characterized in that: The frame is also provided with a limiting mechanism, which includes a limiting frame, two rollers arranged on the two long sides of the limiting frame, and two rotating shafts arranged on the two short sides of the limiting frame. The two rotating shafts are rotatably connected to the frame.

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