Automatic pressing and shaping equipment for fireproof door leaves

Abstract

The application discloses a kind of automatic pressing and shaping equipment of fire door leaf, it is related to fire door processing technical field, including hot-pressing microvibration mechanism.Hot-pressing microvibration mechanism includes first fixed frame, mounting bracket, hollow plate, fixed assembly, hot-pressing assembly and transmission assembly, hollow plate is equipped with heating strip, fixed box, hit plate, rotating rod, rubber rod and rubber ball, and rubber ball is rotated and hits hit plate with rotating rod, so that hollow plate generates microvibration;Hot-pressing assembly is driven by two pressure rollers from the middle of door leaf to both ends by two-way screw rod.This application is driven by two-way screw rod two ends reverse thread synchronous drive two screw nuts and mounting seat opposite movement, so that two pressure rollers with second heating strip are rolled and pressed from the middle of door leaf to both ends, and the rolling action can be expanded to both ends along the length direction of door leaf, to promote air in glue layer and excess glue to migrate along the rolling direction, so as to reduce the risk of door leaf overall deviation and local hollowing, virtual sticking and bulging during hot-pressing process.

Description

Technical Field

[0001] This invention relates to the field of fire door processing technology, and in particular to an automatic pressing and shaping device for fire door panels. Background Technology

[0002] Fire door panels are typically composed of a composite structure including a panel, frame, core material, and adhesive layers. Their processing quality is closely related to the overall flatness of the door panel, the bonding state of each layer, and the precision of subsequent assembly. In the door panel pressing and shaping process, existing equipment often employs hydraulic flatbed pressing, heated plate pressing, or roller-assisted pressing to cure the adhesive layers and shape the panel surface under specific temperature and pressure conditions. As fire door production moves towards automation and continuous operation, related pressing equipment typically incorporates components such as a load-bearing platform, lifting and pressing mechanism, heating elements, and conveying and guiding mechanisms to meet the processing requirements of large-area pressure, heating, and transfer of the door panel. For larger door panels with multiple layers, the pressing process not only needs to provide sufficient pressure but also requires a good match between the direction of pressure application, the heated area, and the door panel transfer process; otherwise, it can easily affect the adhesive layer arrangement, panel surface condition, and shaping stability.

[0003] Existing fire door leaf pressing and shaping equipment still has certain shortcomings in actual use. Some equipment mainly relies on the direct pressing of upper and lower plates, and the pressure is mostly applied vertically as a whole. Air or excess adhesive in the door leaf adhesive layer is not easy to be discharged in the predetermined direction, which can easily lead to hollow, loose adhesion or bulging in local areas. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic pressing and shaping device for fire door panels, which solves the technical problem of insufficient air and glue discharge during the hot pressing and shaping process of fire door panels in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic pressing and shaping device for fireproof door panels includes a hot-pressing micro-vibration mechanism. The hot-pressing micro-vibration mechanism includes a first fixed frame, four first hydraulic cylinders, and a mounting frame. The hot-pressing micro-vibration mechanism further includes: a load-bearing component comprising a hollow plate, with multiple heating strips and multiple fixed boxes installed inside the hollow plate. Multiple impact plates and rotating rods are arranged on the fixed boxes. Multiple rubber rods are arranged on the rotating rods, and a rubber ball is arranged at the end of each rubber rod away from the rotating rod. The rubber ball can rotate with the rotating rod and strike the impact plates, causing the hollow plate to vibrate slightly. A hot-pressing component includes a bidirectional lead screw and two pressure rollers. The bidirectional lead screw is rotatably mounted on the mounting frame, with opposite threads at both ends. The two pressure rollers are rotatably mounted on two mounting seats, which are respectively connected to two lead screw nuts sleeved at both ends of the bidirectional lead screw, so that when the bidirectional lead screw rotates, it drives the two pressure rollers to roll from the middle of the door panel towards both ends. A transmission component is used to drive the rotating rod to rotate when the two pressure rollers roll the door panel.

[0007] Preferably, the hot-press micro-vibration mechanism further includes a fixing component, which includes: a pressure plate disposed below the mounting frame and located between two pressure rollers; two connecting blocks, both mounted on the top of the pressure plate; two guide cylinders, both mounted on the inner top surface of the mounting frame and slidably connected to the two connecting blocks; and a plurality of springs, one end of which is connected to the connecting block, and the other end of which is connected to the inner top surface of the mounting frame.

[0008] Preferably, the hot pressing assembly further includes: a motor, installed on one side of the mounting frame, with its power output shaft fixedly connected to one end of the bidirectional lead screw; and two slide rods, both installed inside the mounting frame, with the mounting base slidably connected to the two slide rods.

[0009] Preferably, the hot pressing assembly further includes: a plurality of second heating strips installed inside the two pressure rollers; the axis of the pressure rollers is arranged along the width direction of the door leaf.

[0010] Preferably, the supporting component further includes: a filler material disposed inside the hollow plate, the filler material being located outside the fixing box and around the heating strip; the hollow plate being connected to the first fixing frame via an elastic pad.

[0011] Preferably, the load-bearing assembly further includes: a plurality of transmission belts for connecting two adjacent rotating rods; a second steering gear, mounted on the hollow plate, having a third transmission rod and a fourth transmission rod, wherein a square insert is provided on the third transmission rod, and the fourth transmission rod is fixedly connected to one of the rotating rods.

[0012] Preferably, the transmission assembly includes: a first steering gear mounted on the mounting bracket, having a first transmission rod and a second transmission rod; a second bevel gear connected to the first transmission rod, with the first bevel gear meshing on the second bevel gear, and the first bevel gear being fixedly sleeved on the bidirectional lead screw; and a insert, one end of which is fixedly connected to the second transmission rod, and the other end of which is slidably inserted into a square insert rod.

[0013] Preferably, it further includes a leveling mechanism, which includes: a second fixed frame with a first plate mounted on its top surface; four second hydraulic cylinders, all mounted on the top surface of the second fixed frame; a lifting plate connected to the extension ends of the four second hydraulic cylinders; and a second plate mounted on the bottom surface of the lifting plate and located directly above the first plate.

[0014] Preferably, the leveling mechanism further includes: two connecting seats, both mounted on the second fixed frame and located between the second fixed frame and the first fixed frame; and multiple guide rollers, all rotatably mounted between the two connecting seats, for providing transition support when the door leaf is transferred from the hot-pressing micro-vibration mechanism to the leveling mechanism.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. This invention uses a two-way lead screw with reverse threads at both ends to synchronously drive two lead screw nuts and mounting bases to move in opposite directions. This causes two pressure rollers with second heating strips to roll and heat press from the middle of the door leaf to both ends with the pressure plate as the center. The rolling action can spread along the length of the door leaf to both ends, causing air and excess adhesive in the adhesive layer to migrate along the rolling direction, thereby reducing the risk of overall door leaf displacement, local hollowing, loose adhesion and bulging during the hot pressing process.

[0017] 2. This invention, by setting multiple fixed boxes, impact plates, rotating rods, rubber rods, and rubber balls inside a hollow plate, and connecting adjacent rotating rods with transmission belts, allows each rotating rod to synchronously drive the rubber rods and rubber balls to periodically strike the corresponding impact plates when one of the rotating rods is driven to rotate. This causes the vibration to be transmitted to the hollow plate through the fixed boxes, so that while the door leaf is pressed by the pressure plate and pressure rollers, its lower side can receive micro-vibration at multiple locations. This makes the pressure flow and air release process of the adhesive layer during hot pressing more complete, thereby improving the bonding state and surface flatness of the door leaf after pressing.

[0018] 3. The present invention further reduces local waves and edge warping during continuous processing by transferring the door leaf after hot pressing and micro-vibration treatment to between the first and second flat plates via guide rollers, and then using the second hydraulic cylinder to drive the second flat plate to perform overall pressing and flattening. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the automatic pressing and shaping equipment for fire door panels in this invention;

[0021] Figure 2 This is a perspective view of the hot-pressing micro-vibration mechanism in this invention;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the hollow plate, rotating rod, transmission belt and second steering gear in this invention.

[0023] Figure 4 This is a schematic diagram of the interior of the hollow plate in this invention;

[0024] Figure 5 This is a schematic diagram of the assembly structure of the fixed box, impact plate, rotating rod, rubber rod, rubber ball and transmission belt in this invention;

[0025] Figure 6 This is a schematic diagram of the assembly structure of the fixed box, the impact plate, the rotating rod, the rubber rod, and the rubber ball in this invention;

[0026] Figure 7 This is a schematic diagram of the assembly structure of the mounting bracket, fixing component, hot pressing component and transmission component in this invention;

[0027] Figure 8 This is a perspective view of the fixing component in this invention;

[0028] Figure 9 This is a perspective view of the leveling mechanism in this invention;

[0029] Reference numerals: 101, First fixing frame; 102, First hydraulic cylinder; 103, Mounting frame; 111, Hollow plate; 112, Fixing box; 1121, Impact plate; 113, Heating strip; 114, Rotating rod; 1141, Rubber rod; 1142, Rubber ball; 115, Transmission belt; 116, Filler; 117, Second steering gear; 1171, Third transmission rod; 1172, Fourth transmission rod; 1173, Square insert rod; 121, Pressure plate; 122, Connecting block; 123, Spring; 124, Guide... 131. Motor; 132. Double-acting lead screw; 133. First bevel gear; 134. Slide rod; 135. Mounting base; 136. Lead screw nut; 137. Pressure roller; 138. Second heating strip; 141. First steering gear; 142. First transmission rod; 143. Second transmission rod; 144. Second bevel gear; 145. Insert cylinder; 201. Second fixing frame; 202. First plate; 203. Second hydraulic cylinder; 204. Lifting plate; 205. Second plate; 206. Connecting seat; 207. Guide roller. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more readily understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0031] This invention is described in detail with reference to the accompanying drawings. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not to scale. Furthermore, the accompanying drawings are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0032] Furthermore, it should be noted in the description of this invention that the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Example 1: As Figures 1 to 9 As shown, an automatic pressing and shaping device for fire door panels includes a hot-pressing micro-vibration mechanism and a leveling mechanism mounted on a base plate, with the leveling mechanism located downstream of the hot-pressing micro-vibration mechanism. In this embodiment, the conveying direction is the direction in which the door panel moves from the hot-pressing micro-vibration mechanism to the leveling mechanism. The hot-pressing micro-vibration mechanism is used to heat, press, roll from the center to both ends, and perform micro-vibration treatment on the fire door panel; the leveling mechanism is used to perform overall pressing and leveling of the fire door panel after the hot-pressing micro-vibration mechanism treatment, reducing local waviness and edge warping of the door panel.

[0034] like Figure 1 and Figure 2 As shown, the hot-pressing micro-vibration mechanism includes a first fixed frame 101, a first hydraulic cylinder 102, a mounting frame 103, a load-bearing component, a fixing component, a hot-pressing component, and a transmission component. The first fixed frame 101 is mounted on a base plate, the first hydraulic cylinder 102 is mounted on the first fixed frame 101, and the mounting frame 103 is positioned above the first fixed frame 101 and moves vertically relative to the first fixed frame 101 via the first hydraulic cylinder 102. The load-bearing component is mounted on the first fixed frame 101 and is used to support the door leaf and heat and micro-vibrate it from below. The fixing component is mounted on the mounting frame 103 and is used to press and fix the middle of the door leaf when the mounting frame 103 descends. The hot-pressing component is mounted on the mounting frame 103 and is used to perform rolling hot-pressing on the door leaf from above. The transmission component is positioned between the mounting frame 103 and the load-bearing component and is used to transmit the power from the hot-pressing component to the load-bearing component, causing the load-bearing component to vibrate slightly.

[0035] like Figures 2 to 6 As shown, the supporting assembly includes a hollow plate 111, a fixing box 112, an impact plate 1121, heating strips 113, a rotating rod 114, a rubber rod 1141, a rubber ball 1142, a transmission belt 115, filler material 116, and a second steering mechanism 117. An elastic pad is provided between the hollow plate 111 and the first fixing frame 101, allowing the hollow plate 111 to vibrate slightly relative to the first fixing frame 101. Multiple fixing boxes 112 and multiple heating strips 113 are provided inside the hollow plate 111, and filler material 116 is also provided inside the hollow plate 111. The multiple heating strips 113 are used to heat the hollow plate 111, enabling the hollow plate 111 to heat the door leaf from below. The filler material 116 is a high-temperature resistant, thermally conductive filler material, and is disposed on the outside of the fixing box 112 and around the heating strips 113 to improve the heat transfer uniformity of the hollow plate 111.

[0036] Multiple impact plates 1121 are provided on the inner wall of the fixed box 112. A rotating rod 114 is rotatably mounted inside the fixed box 112, with one end of the rotating rod 114 extending outside the hollow plate 111. Multiple rubber rods 1141 are provided on the portion of the rotating rod 114 inside the fixed box 112, and a rubber ball 1142 is provided on the end of each rubber rod 1141 away from the rotating rod 114. When the rubber ball 1142 rotates with the rotating rod 114, it can strike the impact plate 1121, causing the impact plate 1121 to vibrate, which in turn causes the fixed box 112 and the hollow plate 111 to vibrate slightly. The rotating rods 114 on adjacent fixed boxes 112 are connected by a transmission belt 115, so that when one rotating rod 114 rotates, the other rotating rods 114 can rotate accordingly. The rubber rods 1141 and the rubber ball 1142 are made of silicone rubber, fluororubber, or other high-temperature resistant elastic materials.

[0037] The second steering gear 117 is mounted on the hollow plate 111. The second steering gear 117 has a third transmission rod 1171 and a fourth transmission rod 1172. A square insert 1173 is provided on the third transmission rod 1171, and the fourth transmission rod 1172 is fixedly connected to one of the rotating rods 114. The square insert 1173 is used to slide into the insert 145 in the transmission assembly to receive the rotational force from the mounting bracket 103 side.

[0038] Specifically, multiple fixing boxes 112 are arranged along the length of the hollow plate 111, so that the vibration generated by the rubber ball 1142 hitting the impact plate 1121 can be distributed at multiple positions of the hollow plate 111, reducing the problem of limited range of single-point vibration.

[0039] like Figure 8 As shown, the fixing assembly includes a pressure plate 121, a connecting block 122, a spring 123, and a guide cylinder 124. The pressure plate 121 is located on the lower inner side of the mounting bracket 103, between two pressure rollers 137. Two connecting blocks 122 are provided on the top of the pressure plate 121, and the connecting blocks 122 are slidably connected to the guide cylinder 124. The guide cylinder 124 is located on the inner top surface of the mounting bracket 103. One end of the spring 123 is connected to the connecting block 122, and the other end of the spring 123 is connected to the inner top surface of the mounting bracket 103. A third heating strip (not shown) is provided inside the pressure plate 121, which is used to heat the middle of the door leaf. In the initial state where the mounting bracket 103 is not pressed down, the pressure plate 121 extends downward relative to the pressure rollers 137 under the action of the spring 123, so that when the mounting bracket 103 descends, the pressure plate 121 contacts the door leaf before the pressure rollers 137.

[0040] Specifically, when the mounting bracket 103 descends, the pressure plate 121 first contacts the middle of the door leaf, then the spring 123 is compressed, and the connecting block 122 slides along the guide cylinder 124, so that the pressure plate 121 elastically presses against the door leaf.

[0041] like Figure 7As shown, the hot pressing assembly includes a motor 131, a double-acting lead screw 132, a first bevel gear 133, a slide rod 134, a mounting base 135, a lead screw nut 136, a pressure roller 137, and a second heating strip 138. The motor 131 is mounted on one side of the mounting frame 103, and the double-acting lead screw 132 is rotatably mounted on the mounting frame 103. The power output shaft of the motor 131 is fixedly connected to one end of the double-acting lead screw 132. The threads at both ends of the double-acting lead screw 132 have opposite directions of rotation, and the first bevel gear 133 is fixedly sleeved on the double-acting lead screw 132. The slide rod 134 is located inside the mounting frame 103, and the mounting base 135 is slidably mounted on the slide rod 134. Each mounting base 135 is connected to a lead screw nut 136, which is sleeved on the double-acting lead screw 132. Two mounting bases 135 are each rotatably mounted with a pressure roller 137. The axis of the pressure roller 137 is arranged along the width direction of the door leaf. The two mounting bases 135 move away from each other or towards each other along the length direction of the door leaf, so that the pressure roller 137 can roll from the middle to both ends along the length direction of the door leaf. Multiple second heating strips 138 are provided on the pressure roller 137. The two pressure rollers 137 are located on both sides of the pressure plate 121, and are used for rolling and hot pressing on the upper surface of the door leaf.

[0042] Specifically, when the motor 131 drives the bidirectional lead screw 132 to rotate, because the threads at both ends of the bidirectional lead screw 132 are in opposite directions, the two lead screw nuts 136 can move simultaneously in opposite directions or simultaneously in opposite directions. When the lead screw nuts 136 move, they drive the mounting base 135 to move along the slide rod 134. The mounting base 135 then drives the pressure rollers 137 to move, allowing the two pressure rollers 137 to roll from the middle of the fire door leaf towards both ends. Furthermore, the bidirectional lead screw 132, through its reverse threads at both ends, simultaneously drives the two lead screw nuts 136 to move in opposite directions, causing the two pressure rollers 137 to roll synchronously towards both ends with the pressure plate 121 as the center, thereby improving the consistency of the pressure process on both sides of the door leaf.

[0043] like Figure 7 As shown, the transmission assembly includes a first steering gear 141, a first transmission rod 142, a second transmission rod 143, a second bevel gear 144, and a sleeve 145. The first steering gear 141 is mounted on the mounting bracket 103 and has a first transmission rod 142 and a second transmission rod 143. One end of the first transmission rod 142 is connected to the second bevel gear 144, and the second bevel gear 144 meshes with the first bevel gear 133. One end of the second transmission rod 143 is connected to the sleeve 145, and the sleeve 145 is slidably inserted into a square insert rod 1173. When the mounting bracket 103 is raised or lowered relative to the first fixed bracket 101, the sleeve 145 can slide axially relative to the square insert rod 1173 while maintaining the torque transmission relationship between the two.

[0044] like Figure 1 and Figure 9As shown, the leveling mechanism includes a second fixed frame 201, a first plate 202, a second hydraulic cylinder 203, a lifting plate 204, a second plate 205, a connecting seat 206, and a guide roller 207. The second fixed frame 201 is installed on the top surface of the base plate. The first plate 202 is installed on the top surface of the second fixed frame 201, and four second hydraulic cylinders 203 are also installed on the top surface of the second fixed frame 201. The lifting plate 204 is installed on the extended end of the four second hydraulic cylinders 203, and the second plate 205 is installed on the bottom surface of the lifting plate 204, with the second plate 205 located directly above the first plate 202. When the second hydraulic cylinders 203 extend and retract, they can drive the lifting plate 204 and the second plate 205 to move up and down relative to the first plate 202, thereby pressing and leveling the fire door leaf through the first plate 202 and the second plate 205.

[0045] Both connecting seats 206 are mounted on the second fixed frame 201, and the two connecting seats 206 are located between the second fixed frame 201 and the first fixed frame 101. Multiple guide rollers 207 are rotatably mounted between the two connecting seats 206. The guide rollers 207 are used to provide transition support when the door leaf is transferred from the hot-pressing micro-vibration mechanism to the leveling mechanism, and to reduce the friction between the bottom surface of the fire door leaf and the equipment.

[0046] Working principle: In use, the heating strips 113 inside the hollow plate 111, the heating strips inside the pressure plate 121, and the second heating strip 138 on the pressure roller 137 are first activated to heat up the hollow plate 111, the pressure plate 121, and the pressure roller 137 respectively. Then, the fire door leaf to be pressed and shaped is placed on the hollow plate 111, so that the lower surface of the fire door leaf is supported by the hollow plate 111.

[0047] Subsequently, the four first hydraulic cylinders 102 are activated, driving the mounting bracket 103 downward. As the mounting bracket 103 moves downward, the pressure plate 121 preferentially contacts the middle of the fire door leaf. As the mounting bracket 103 continues to move downward, the pressure plate 121 is subjected to the reaction force of the fire door leaf, and the connecting block 122 slides upward along the guide cylinder 124, compressing the spring 123. After being compressed, the spring 123 applies an elastic force to the connecting block 122 and the pressure plate 121, causing the pressure plate 121 to elastically press against the middle of the fire door leaf, thus preventing the fire door leaf from shifting as a whole with the pressure roller 137 when it moves from the middle to both ends.

[0048] After the pressure plate 121 presses the middle of the fire door leaf, the motor 131 is started, driving the bidirectional lead screw 132 to rotate. As the bidirectional lead screw 132 rotates, the two lead screw nuts 136 move synchronously in opposite directions under the action of the reverse threads at both ends of the bidirectional lead screw 132. The two lead screw nuts 136 respectively drive the two mounting seats 135 to move along the slide rod 134 away from the middle of the fire door leaf. When the two mounting seats 135 move, they drive the two pressure rollers 137 to move towards both ends of the fire door leaf. During the movement, the pressure rollers 137 contact the upper surface of the fire door leaf and perform rolling and hot pressing from the middle of the fire door leaf towards both ends. This rolling direction allows air and excess adhesive in the fire door leaf's adhesive layer to migrate towards both ends of the fire door leaf under the rolling action.

[0049] While the motor 131 drives the bidirectional lead screw 132 to rotate, the first bevel gear 133, which is fixedly sleeved on the bidirectional lead screw 132, rotates synchronously. The first bevel gear 133 drives the second bevel gear 144, which meshes with it, to rotate. The second bevel gear 144 drives the first steering mechanism 141 to work through the first transmission rod 142. The first steering mechanism 141 drives the insert cylinder 145 to rotate through the second transmission rod 143. The insert cylinder 145 is slidably inserted into the square insert rod 1173. When the insert cylinder 145 rotates, it drives the square insert rod 1173 to rotate. The square insert rod 1173 drives the second steering mechanism 117 to work through the third transmission rod 1171. The second steering mechanism 117 drives one of the rotating rods 114 to rotate through the fourth transmission rod 1172.

[0050] After one of the rotating rods 114 rotates, it drives the other rotating rods 114 to rotate via the transmission belt 115. When the rotating rod 114 rotates, the rubber rod 1141 on the rotating rod 114 rotates synchronously with the rotating rod 114, and the rubber ball 1142 at the end of the rubber rod 1141 periodically strikes the impact plate 1121 on the inner wall of the fixing box 112. The impact plate 1121 vibrates after being struck by the rubber ball 1142, and the vibration is transmitted to the hollow plate 111 through the fixing box 112, causing the hollow plate 111 to vibrate slightly. Since the fire door leaf is placed on the hollow plate 111 and is pressed by the pressure plate 121 and the pressure roller 137, the slight vibration of the hollow plate 111 can be transmitted to the fire door leaf, so that the fire door leaf is subjected to slight vibration during the hot pressing process.

[0051] After the pressure roller 137 completes the rolling and hot pressing from the middle of the fire door leaf to both ends, the first hydraulic cylinder 102 drives the mounting bracket 103 to rise, causing the pressure plate 121 and the pressure roller 137 to detach from the fire door leaf. Then, the control motor 131 rotates in the opposite direction, and the bidirectional lead screw 132 drives the two lead screw nuts 136 to move in opposite directions. The two mounting seats 135 move with the lead screw nuts 136 towards the middle of the fire door leaf, causing the two pressure rollers 137 to reset. Depending on the thickness of the door leaf adhesive layer or the pressing requirements, the above rolling and hot pressing process can be repeated after the pressure rollers 137 detach from the door leaf and reset. Under the combined action of the pressure plate 121, the pressure roller 137, and the hollow plate 111, the fire door leaf is under heat, pressure, and micro-vibration, which helps to promote the migration of air and excess adhesive in the fire door leaf adhesive layer along the rolling direction, thereby reducing the risk of hollow areas, loose adhesion, and localized bulging.

[0052] After the hot pressing is completed, the four first hydraulic cylinders 102 drive the mounting bracket 103 to rise, causing the pressure plate 121 to detach from the fire door leaf. The power output shaft of the control motor 131 rotates in the opposite direction, causing the double-acting screw 132 to drive the two screw nuts 136 to move in opposite directions. The two screw nuts 136 respectively drive the two mounting seats 135 to move closer to the center of the fire door leaf, thereby resetting the two pressure rollers 137.

[0053] The fire door leaf, after being processed by the hot-pressing micro-vibration mechanism, is then moved towards the leveling mechanism. The fire door leaf first moves onto multiple guide rollers 207, which support and guide it, allowing it to continue moving onto the first plate 202. Once the fire door leaf is positioned between the first plate 202 and the second plate 205, four second hydraulic cylinders 203 are activated. These cylinders lower the lifting plate 204 and the second plate 205, allowing the second plate 205 to engage with the first plate 202 to press and level the fire door leaf as a whole. After leveling, the four second hydraulic cylinders raise the lifting plate 204 and the second plate 205, and the fire door leaf is output from the leveling mechanism.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0055] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic pressing and shaping device for fire door panels, comprising a hot-pressing micro-vibration mechanism, wherein the hot-pressing micro-vibration mechanism comprises a first fixed frame, four first hydraulic cylinders, and a mounting frame, characterized in that, The hot-press micro-vibration mechanism also includes: The load-bearing component includes a hollow plate, in which multiple heating strips and multiple fixing boxes are installed. Multiple impact plates and rotating rods are provided on the fixing boxes. Multiple rubber rods are provided on the rotating rods. A rubber ball is provided at the end of the rubber rod away from the rotating rod. The rubber ball can rotate with the rotating rod and strike the impact plate, so that the hollow plate will produce a slight vibration. The hot pressing assembly includes a bidirectional lead screw and two pressure rollers. The bidirectional lead screw is rotatably mounted on a mounting frame. The threads at both ends of the bidirectional lead screw have opposite directions. The two pressure rollers are rotatably mounted on two mounting seats. The two mounting seats are respectively connected to two lead screw nuts sleeved on both ends of the bidirectional lead screw, so that when the bidirectional lead screw rotates, it drives the two pressure rollers to roll from the middle of the door leaf to both ends of the door leaf. A transmission assembly is used to drive the rotating rod to rotate when the two pressure rollers roll the door leaf.

2. The automatic pressing and shaping equipment for fire door panels according to claim 1, characterized in that, The hot-press micro-vibration mechanism further includes a fixing component, which includes: The pressure plate is positioned below the mounting frame and between the two pressure rollers; Both connecting blocks are installed on top of the pressure plate; Both guide cylinders are installed on the inner top surface of the mounting bracket and are slidably connected to the two connecting blocks; Multiple springs, one end of which is connected to a connecting block, and the other end of which is connected to the inner top surface of the mounting bracket.

3. The automatic pressing and shaping equipment for fire door panels according to claim 1, characterized in that, The hot-pressing assembly also includes: The motor is mounted on one side of the mounting bracket, and its power output shaft is fixedly connected to one end of the bidirectional lead screw; Both slide rods are installed inside the mounting bracket, and the mounting base is slidably connected to the two slide rods.

4. The automatic pressing and shaping equipment for fire door panels according to claim 3, characterized in that, The hot-pressing assembly also includes: Multiple second heating strips are installed inside the two pressure rollers; the axes of the pressure rollers are arranged along the width of the door panel.

5. The automatic pressing and shaping equipment for fire door panels according to claim 3, characterized in that, The carrier component also includes: A filler is disposed inside the hollow plate, and the filler is located outside the fixing box and around the heating strip; the hollow plate is connected to the first fixing frame through an elastic pad.

6. The automatic pressing and shaping equipment for fire door panels according to claim 5, characterized in that, The carrier component also includes: Multiple drive belts are used to connect two adjacent rotating rods; The second steering gear, mounted on the hollow plate, has a third transmission rod and a fourth transmission rod. The third transmission rod is provided with a square insert rod, and the fourth transmission rod is fixedly connected to one of the rotating rods.

7. The automatic pressing and shaping equipment for fire door panels according to claim 6, characterized in that, The transmission assembly includes: A first steering gear, mounted on the mounting bracket, has a first drive rod and a second drive rod; The second bevel gear is connected to the first transmission rod, and the first bevel gear is meshed with the second bevel gear. The first bevel gear is fixedly sleeved on the bidirectional lead screw. The insert has one end fixedly connected to the second transmission rod, and the other end slidably inserted into the square insert rod.

8. The automatic pressing and shaping equipment for fire door panels according to claim 7, characterized in that, It also includes a leveling mechanism, which comprises: The second fixing frame has a first flat plate mounted on its top surface; Four second hydraulic cylinders are all mounted on the top surface of the second fixed frame; The lifting plate is connected to the extension ends of the four second hydraulic cylinders; The second plate is installed on the bottom surface of the lifting plate and is located directly above the first plate.

9. The automatic pressing and shaping equipment for fire door panels according to claim 8, characterized in that, The leveling mechanism further includes: Both connecting seats are mounted on the second fixed frame and located between the second fixed frame and the first fixed frame. Multiple guide rollers are rotatably mounted between two connecting seats to provide transition support when the door leaf is transferred from the hot-pressing micro-vibration mechanism to the leveling mechanism.

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