Foam board welding equipment

Abstract

The present application relates to a foam board welding device, belonging to the technical field of foam boards, comprising a frame, on which are arranged an assembling half-frame, a receiving half-frame, a pressure plate, a bottom plate and a heating plate, the pressure plate being arranged opposite to the bottom plate, the pressure plate being slidably arranged on the frame for squeezing the foam board; the receiving half-frame is fixed on the frame and is located between the pressure plate and the pressure plate, the assembling half-frame and the heating plate are distributed on both sides of the receiving half-frame and are both slidably arranged on the frame, the assembling half-frame and the heating plate move simultaneously in a direction approaching or moving away from the receiving half-frame; a positioning component for fixing the foam board is arranged on the assembling half-frame; an unlocking component for releasing the locking of the foam board by the positioning component and fixing the foam board on the assembling half-frame on the receiving half-frame; the sides of the assembling half-frame and the receiving half-frame close to each other are both open for the transfer of the foam board, and the present application has the effect of improving the use efficiency of the heating plate and reducing the idle standby time of the heating plate.

Description

Technical Field

[0001] The present application relates to the technical field of foam boards, and in particular to a foam board welding device. Background Art

[0002] Foam board is a common building material and packaging material. The remarkable feature of this material is its light weight and low density, which makes it easy to carry and use. It has excellent thermal insulation performance and can effectively block the transfer of heat, so it is often used in building exterior wall insulation, roof insulation and other scenarios.

[0003] A single piece of foam board has uniform specifications when it leaves the factory. When it is transported to the actual application scenario, it is usually necessary to cut the thickness of the single foam board, which will eventually produce foam board scraps. The thickness of these scraps is no longer uniform, and the scraps need to be welded again to meet the factory thickness.

[0004] The existing foam board welding is to heat the side walls of two foam boards close to each other, and after meeting the hot melting requirements, remove the heating plate from between the two foam boards, and then squeeze the two foam boards to complete the welding. After the welding is completed, the mechanism for transporting the foam boards returns to the starting point, then carries a new foam board, moves to the designated position again, and welds, and repeats this process.

[0005] When the foam board is heated, the mechanism for transporting the foam board still needs to stay at the location where the foam board is to be extruded to ensure the stability of the position of the foam board. After the foam board is extruded, the heating plate needs to wait for the structure for transporting the foam board to transport the subsequent foam board, resulting in the low efficiency of the heating plate. Summary of the invention

[0006] In order to improve the use efficiency of the heating plate and reduce the idle standby time of the heating plate, the present application provides a foam plate welding device.

[0007] The foam board welding equipment provided in this application adopts the following technical solution:

[0008] A foam board welding device comprises a frame, on which an assembling half frame, a receiving half frame, a pressure plate, a bottom plate and a heating plate are arranged, the pressure plate is arranged opposite to the bottom plate, the pressure plate is slidably arranged on the frame and moves in a direction close to or away from the bottom plate for squeezing the foam board; the receiving half frame is fixed on the frame and is located between the pressure plate and the pressure plate, the assembling half frame and the heating plate are distributed on both sides of the receiving half frame and are slidably arranged on the frame, and the assembling half frame and the heating plate move in a direction close to or away from the receiving half frame at the same time; the assembling half frame is provided with a positioning component for fixing the foam board; the receiving half frame is provided with an unlocking component, the unlocking component is used to release the lock of the positioning component on the foam board, and fix the foam board on the assembling half frame on the receiving half frame; the assembling half frame and the receiving half frame are both open on one side close to each other for the transfer of the foam board.

[0009] By adopting the above technical solution, the worker places the foam board to be spliced ​​on the bottom plate, and then places another foam board to be spliced ​​on the assembling half frame, and then the splicing board frame and the heating plate are simultaneously moved in the direction close to the receiving half frame until the heating plate is facing the bottom plate, and at the same time, the foam board in the assembling half frame is fixed in the receiving half frame by the unlocking component. At this time, the heating plate is located between the two foam boards to be spliced ​​to heat the foam boards. After heating to the specified temperature, the heating plate and the assembling half frame are withdrawn at the same time, and the pressure plate extrude and fuse the two foam boards. During the extrusion and fusion process, the assembling half frame can repeatedly install the foam board, which is convenient for the next foam board fusion use, saving time and improving the use efficiency of the heating plate.

[0010] Optionally, the positioning assembly includes an elastic telescopic part, a connecting rod and a pressure strip, the elastic telescopic part is vertically fixed between the top inner wall of the assembled half frame and the connecting rod, the elastic telescopic part is used to push the connecting rod downward, the connecting rod is fixedly connected to the pressure strip at one end away from the elastic telescopic part, and the pressure strip is used to abut against the foam board.

[0011] By adopting the above technical solution, after the foam board to be spliced ​​is placed in the assembling half frame, the elastic telescopic member pushes the connecting rod to move downward, and finally the pressure strip abuts against the top of the foam board, thereby positioning the foam board on the assembling half frame.

[0012] Optionally, the unlocking assembly includes a cylinder and a rocker, the cylinder is vertically fixed on the top inner wall of the receiving half frame, and a protrusion is fixed on the circumferential outer wall of the cylinder's piston rod; the rocker is rotatably set on the assembled half frame, one end of the rocker is used to abut against the bottom end of the elastic telescopic part, and the other end of the rocker is used to abut against the protrusion; the protrusion presses one end of the rocker downward, and the other end of the rocker presses the elastic telescopic part upward.

[0013] By adopting the above technical solution, when the assembled half frame approaches the receiving half frame, the cylinder is started, the piston rod of the cylinder moves downward, the protrusion abuts on one end of the seesaw, and pushes the other end of the seesaw upward, the seesaw compresses the elastic telescopic part upward, thereby separating the pressure strip from the top of the foam board. At this time, the end of the piston end of the cylinder abuts on the top of the foam board, and then the assembled half frame continues to move until the foam board moves to the specified position. During the whole process from the end of the cylinder abutting against the top of the foam board until the foam board moves to the specified position, the posture of the seesaw remains unchanged, thereby realizing the position transfer of the foam board from the assembled half frame to the receiving half frame.

[0014] Optionally, the assembled half frame is provided with an adjusting nut and a vertical rod, the vertical rod is vertically fixed on the top inner wall of the assembled half frame, the adjusting nut is ring-covered on the vertical rod and is threadedly connected to the vertical rod, and the top wall of the adjusting nut is used to abut against the bottom end of the elastic telescopic part.

[0015] By adopting the above technical solution, the assembled half frame is used to receive foam boards of different sizes to be welded. If the sizes of the foam boards are different, the position of the adjusting nut is moved on the vertical rod to adjust the maximum downward pressure of the elastic telescopic part, thereby avoiding excessive squeezing of the pressure strip on the top of the foam board and ensuring that the overall posture of the foam board is stable and not deformed.

[0016] Optionally, a power assembly is provided on the frame, the power assembly includes a motor, a first screw, a second screw, a first gear, a second gear, a first slider and a second slider, the first screw and the second screw are arranged in parallel and the length direction is arranged along the sliding direction of the assembled half frame, the motor is fixedly connected to one end of the first screw, the other end of the first screw is fixedly connected to the first gear, the first gear is meshed with the second gear, the second gear is fixedly connected to the end of the second screw, the middle part of the first slider is penetrated by the first screw and the top is fixedly connected to the bottom of the assembled half frame, the middle part of the second slider is penetrated by the second screw and the top is fixedly connected to the bottom of the heating plate, and the frame is provided with a double slideway for the first slider and the second slider to slide in a direction close to or away from the receiving half frame, the first slider is threadedly connected to the first screw, and the second slider is threadedly connected to the second screw.

[0017] By adopting the above technical solution, the motor is started, and the motor drives the first screw to rotate. The second screw is rotated by the transmission of the first gear and the second gear. Since the double slideway limits the first slider and the second slider, the first screw passes through the first slider and is threadedly connected to the first slider, and the second screw passes through the second slider and is threadedly connected to the second slider, finally the assembled half frame and the heating plate can move simultaneously in the direction of approaching or moving away from each other.

[0018] Optionally, the heating plate is a heating plate using infrared radiation heating.

[0019] By adopting the above technical solution, infrared radiation can directly penetrate the surface of the foam board, allowing heat to be quickly transferred to the inside of the material and rapidly raising the temperature, thereby effectively shortening the heating time and improving production efficiency.

[0020] Optionally, the heating plate is an electrically heated heating plate.

[0021] By adopting the above technical solution, accurate temperature control systems such as temperature sensors and thermostats can be used to achieve accurate regulation and stable control of the temperature of the heating plate, ensuring that the foam board is always in a suitable temperature range during the hot melt processing, thereby improving the consistency and stability of product quality; no combustion exhaust gas, smoke and other pollutants will be generated during the electric heating process, which is environmentally friendly and meets the requirements of modern green production. There is no need to worry about product contamination caused by incomplete combustion and other problems.

[0022] Optionally, the heating plate is a fluid heating plate.

[0023] By adopting the above technical solution, the fluid has good fluidity and thermal conductivity, and can evenly distribute heat inside the heating plate. When the fluid is heated, it will continue to flow and circulate, making the temperature difference of each part of the heating plate very small, thereby ensuring the temperature uniformity of the entire heating plate surface. For processes such as foam board hot melt processing that require high temperature uniformity, this can improve product quality and processing accuracy, and avoid product defects caused by local excessively high or low temperatures.

[0024] Optionally, the pressure plate is provided with a suction hole, which is located on the side wall of the pressure plate facing the bottom plate, and the pressure plate is connected with an air pump tube, which is used to generate suction in the suction hole.

[0025] By adopting the above technical solution, when the pressure plate pushes the foam board on the receiving half frame toward the foam board on the bottom plate, the suction force at the suction hole positions the foam board, thereby ensuring the accuracy of the position of the two foam boards when they are welded.

[0026] Optionally, the pressure plate is a constant temperature plate.

[0027] By adopting the above technical solution, the constant temperature plate plays a role of temperature compensation for the foam plate, and alleviates the effect of heat taken away from the foam plate due to suction.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. During the extrusion and fusion process, the assembled half frame can be repeatedly installed with the foam board, which is convenient for the next fusion of the foam board, saving time and improving the efficiency of the heating plate;

[0030] 2. The power assembly uses a motor to synchronously drive the heating plate and the assembled half frame to move toward or away from each other;

[0031] 3. When the pressure plate pushes the foam board on the receiving half frame toward the foam board on the bottom plate, the suction force at the suction hole positions the foam board, thereby ensuring the accuracy of the position of the two foam boards when they are welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0033] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0034] Figure 3 It is a partial structural cross-sectional view of the elastic expansion member;

[0035] Figure 4 yes Figure 1 A partial enlarged schematic diagram of part B;

[0036] Figure 5 This is a schematic diagram of the remaining structure after the rack and dual guide rails are hidden.

[0037] In the figure, 1, frame; 11, assembled half frame; 12, receiving half frame; 13, pressure plate; 131, suction hole; 132, air pump pipe; 14, bottom plate; 15, heating plate; 16, double slide; 17, hydraulic cylinder; 2, positioning component; 21, elastic telescopic part; 211, inner tube; 212, outer tube; 213, spring; 22, connecting rod; 23, pressure strip; 3, unlocking component; 31, cylinder; 311, bump; 32, seesaw; 4, vertical rod; 41, adjusting nut; 42, cross rod; 43, support rod; 5, power component; 51, motor; 52, first screw; 53, second screw; 54, first gear; 55, second gear; 56, first slider; 57, second slider. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0039] The embodiment of the present application discloses a foam board welding device.

[0040] refer to Figure 1A foam board welding device includes a frame 1, which is in a cross shape and is provided with an assembling half frame 11, a receiving half frame 12, a pressure plate 13, a bottom plate 14 and a heating plate 15. The bottom plate 14 is fixed at the cross intersection of the frame 1 itself, and a worker fixes the foam board to be welded on the bottom plate 14. The line connecting the bottom plate 14 and the pressure plate 13 is perpendicular to the line connecting the assembling half frame 11 and the receiving half frame 12. The receiving half frame 12 is also fixed at the cross intersection of the frame 1 itself and is located between the pressure plate 13 and the bottom plate 14.

[0041] refer to Figure 1 The pressure plate 13 is slidably arranged on the frame 1, and a hydraulic cylinder 17 is fixed on the frame 1. The piston end of the hydraulic cylinder 17 is fixedly connected to the side wall of the pressure plate 13 away from the bottom plate 14, and the hydraulic cylinder 17 pushes the pressure plate 13 to move in a direction close to or away from the bottom plate 14. The pressure plate 13 is provided with a suction hole 131, and the suction hole 131 is located on the side wall of the pressure plate 13 facing the bottom plate 14. The pressure plate 13 is connected with an air pump pipe 132, and the air pump pipe 132 is connected with an external air pump. The air pump pipe 132 cooperates with the air pump to generate suction in the suction hole 131. The pressure plate 13 adopts a constant temperature plate. The implementation method of the constant temperature plate is, for example: a temperature sensor (such as a thermocouple, a thermistor, etc.) and a temperature control system are set in the pressure plate 13. The sensor can monitor the temperature of the constant temperature plate in real time and accurately, and convert the temperature signal into an electrical signal and feed it back to the temperature control system. The temperature controller based on a microprocessor or PLC is the core component for realizing constant temperature control. It receives the electrical signal from the temperature sensor, compares and calculates with the set target temperature, and then outputs a control signal according to the deviation to adjust the power of the heating or cooling equipment to keep the temperature of the constant temperature plate stable. Some advanced temperature control systems also have PID control function, that is, proportional-integral-differential control. No specific detailed examples are given here, which are all existing technologies, thereby forming a constant temperature plate.

[0042] refer to Figures 1 to 4 The receiving half frame 12 and the assembling half frame 11 are both open on one side close to each other, that is, the receiving half frame 12 and the assembling half frame 11 are both C-shaped, and the openings are arranged opposite to each other. The bottom inner wall of the assembling half frame 11 and the bottom inner wall of the receiving half frame 12 are located on the same horizontal plane. The receiving half frame 12 is provided with an unlocking component 3, and the assembling half frame 11 is provided with a positioning component 2.

[0043] refer to Figure 1 , Figure 2 and Figure 3The positioning assembly 2 includes an elastic telescopic member 21, a connecting rod 22 and a pressure strip 23. The elastic telescopic member 21 includes an inner tube 211, an outer tube 212 and a spring 213. The elastic telescopic member 21 is arranged in a vertical state as a whole. The top of the inner tube 211 is fixed on the top inner wall of the assembled half frame 11, the open end of the outer tube 212 is sleeved on the inner tube 211, and the spring 213 is located inside the inner tube 211 and the outer tube 212. The top of the spring 213 is fixedly connected to the assembled half frame 11, and the bottom is fixedly connected to the inner wall of the outer tube 212. The outer wall of the bottom of the outer tube 212 is fixedly connected to the top of the connecting rod 22, and the bottom of the connecting rod 22 is fixedly connected to the pressure strip 23. A vertical rod 4 is fixed at the inner part of the top of the assembled half frame 11. The vertical rod 4 is located next to the elastic telescopic member 21. The vertical rod 4 is vertically arranged. The top of the vertical rod 4 is fixedly connected to the inner wall of the top of the assembled half frame 11. A cross bar 42 is fixed to the bottom of the vertical rod 4. The cross bar 42 is horizontally arranged. An adjusting nut 41 is ringed on the vertical rod 4. The adjusting nut 41 is threadedly connected to the vertical rod 4. The top wall of the adjusting nut 41 abuts against the elastic telescopic member 21, that is, the top wall of the adjusting nut 41 abuts against the bottom of the outer cylinder 212.

[0044] refer to Figure 1 , Figure 2 and Figure 4 , a support rod 43 is fixed on the crossbar 42, and the support rod 43 and the vertical rod 4 are distributed on both sides of the outer cylinder 212. The unlocking assembly 3 includes a cylinder 31 and a seesaw 32, the cylinder 31 is vertical and the bottom is fixed on the top inner wall of the receiving half frame 12, and a convex block 311 is fixed on the outer wall of the piston rod of the cylinder 31. The seesaw 32 is rotatably set on the assembled half frame 11, that is, it is rotatably set on the support rod 43 and the rotation axis is horizontally set, one end of the seesaw 32 abuts against the bottom of the convex block 311, and the other end of the seesaw 32 abuts against the bottom of the outer cylinder 212, the convex block 311 follows the cylinder 31 to press one end of the seesaw 32 downward, and at the same time, the other end of the seesaw 32 tilts the outer cylinder 212 upward, thereby realizing the compression of the elastic telescopic member 21, and finally separating the pressure strip 23 from the top of the foam board, and at the same time, the piston end of the cylinder 31 abuts against the top of the foam board. The assembled half frame 11 continues to move until the foam board moves to the specified position. During the entire process from the end of the cylinder 31 abutting against the top of the foam board until the foam board moves to the specified position, the posture of the seesaw 32 remains unchanged, thereby realizing the position transfer of the foam board from the assembled half frame 11 to the receiving half frame 12.

[0045] refer to Figure 1 and Figure 5The frame 1 is provided with a power assembly 5, which includes a motor 51, a first screw 52, ​​a second screw 53, a first gear 54, a second gear 55, a first slider 56 and a second slider 57. The first screw 52 and the second screw 53 are arranged in parallel and their length directions are arranged along the direction of the line connecting the assembled half frame 11 and the receiving half frame 12. The motor 51 is fixedly connected to one end of the first screw 52, ​​and the other end of the first screw 52 is fixedly connected to the first gear 54. The first gear 54 is meshed with the second gear 55, and the second gear 55 is meshed with the second screw The end of the rod 53 is fixedly connected, the middle of the first slider 56 is penetrated by the first screw 52 and the top is fixedly connected to the bottom of the assembled half frame 11, the first slider 56 is threadedly connected to the first screw 52, ​​the middle of the second slider 57 is penetrated by the second screw 53 and the top is fixedly connected to the bottom of the heating plate 15, the second slider 57 is threadedly connected to the second screw 53, and the frame 1 is provided with a double slide 16, the first slider 56 and the second slider 57 are located in the double slide 16, and the first slider 56 and the second slider 57 slide in the direction of approaching or moving away from the receiving half frame 12. When the power assembly 5 drives the assembled half frame 11 to transfer the foam board on the assembled half frame 11 to the designated position on the receiving half frame 12, the heating plate 15 moves just between the two foam boards, and the two foam boards here refer to the foam board on the bottom plate 14 and the foam board on the receiving half frame 12.

[0046] refer to Figure 1 The heating plate 15 may be an infrared radiation heating plate 15, an electric heating plate 15, a fluid heating plate 15, or a combination of any two or even all three.

[0047] The heating plate 15 adopts infrared radiation heating, and there is no unique implementation method. For example, multiple infrared radiation heating elements are evenly distributed inside the heating plate 15, such as special infrared radiation lamps or infrared radiation ceramic heating plates. These infrared radiation heating elements are closely arranged to ensure that the surface of the heating plate 15 can receive uniform and sufficient infrared radiation energy. The outer shell of the heating plate 15 is made of a metal material with good heat resistance and reflectivity, such as aluminum alloy, and its inner wall is treated with a special reflective coating, which can maximize the reflection of infrared radiation to the working area of ​​the heating plate 15, reduce heat loss and energy waste, and further improve the utilization efficiency of infrared radiation.

[0048] The heating plate 15 adopts electric heating, and there are many ways to achieve it. For example, the electric heating element is a high-performance alloy resistance wire. This alloy resistance wire has the advantages of high resistivity, strong oxidation resistance, and stable heating. It can quickly generate a large amount of heat after the current is passed through, meeting the rapid heating requirements of the heating plate 15. Multiple alloy resistance wires are evenly distributed inside the heating plate 15 in a serpentine or spiral manner. By accurately calculating the spacing and layout density of the resistance wires, the heat distribution on the surface of the heating plate 15 is ensured to be uniform, avoiding local overheating or overcooling, thereby providing a stable and consistent heating environment for the hot melt processing of the foam board.

[0049] The heating plate 15 adopts a fluid heating method, and there is no unique implementation method. For example, it is mainly composed of a heating container, a circulating pump, a heating element, a temperature sensor and a pipeline. The heating container is used to store the heating fluid. The heating container refers to the heating plate 15. The circulating pump is responsible for driving the fluid to circulate in the system. The heating element heats the fluid. The temperature control system accurately controls the fluid temperature. The pipeline connects the various components to form a complete fluid circulation loop to ensure that the heating plate 15 can obtain a stable and uniform heat supply. The heating element adopts a high-performance electric heating tube, which is immersed in the heating fluid in the heating container. The heating fluid is thermal oil. The temperature sensor is a platinum resistance temperature sensor.

[0050] The implementation principle of a foam board welding device in an embodiment of the present application is as follows: a worker places a foam board to be spliced ​​on a bottom plate 14, and then places another foam board to be spliced ​​on an assembling half frame 11, and simultaneously moves the splicing plate frame and the heating plate 15 toward the receiving half frame 12 through the power component 5 until the heating plate 15 is facing the bottom plate 14, and at the same time, the foam board in the assembling half frame 11 is fixed in the receiving half frame 12 by the unlocking component 3, and at this time, the heating plate 15 is located between the two foam boards to be spliced ​​to heat the foam boards, and after heating to a specified temperature, the heating plate 15 and the assembling half frame 11 are evacuated at the same time, the hydraulic cylinder 17 is started, and the pressure plate 13 extrude and fuse the two foam boards, and during the extrusion and fusion process, the foam board can be repeatedly installed on the assembling half frame 11, which is convenient for the next foam board fusion, saving time and improving the use efficiency of the heating plate 15.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A foam board welding device, comprising a frame (1), characterized in that: The frame (1) is provided with an assembling half frame (11), a receiving half frame (12), a pressure plate (13), a bottom plate (14) and a heating plate (15); the pressure plate (13) and the bottom plate (14) are arranged opposite each other; the pressure plate (13) is slidably arranged on the frame (1) and moves in a direction approaching or moving away from the bottom plate (14) for squeezing the foam plate; the receiving half frame (12) is fixed on the frame (1) and is located between the pressure plate (13) and the pressure plate; the assembling half frame (11) and the heating plate (15) are distributed on both sides of the receiving half frame (12) and are both slidably arranged on the frame (1), the assembling half frame (11) and the heating plate (15) move simultaneously in a direction approaching or moving away from the receiving half frame (12); the assembling half frame (11) is provided with a positioning component (2) for fixing the foam board; the receiving half frame (12) is provided with an unlocking component (3), the unlocking component (3) is used to release the locking of the foam board by the positioning component (2), and fix the foam board on the assembling half frame (11) on the receiving half frame (12); the assembling half frame (11) and the receiving half frame (12) are both open on one side close to each other for transferring the foam board; The positioning assembly (2) comprises an elastic telescopic member (21), a connecting rod (22) and a pressure strip (23); the elastic telescopic member (21) is vertically fixed between the top inner wall of the assembled half frame (11) and the connecting rod (22); the elastic telescopic member (21) is used to push the connecting rod (22) downward; one end of the connecting rod (22) away from the elastic telescopic member (21) is fixedly connected to the pressure strip (23); and the pressure strip (23) is used to abut against the foam board; The unlocking assembly (3) comprises a cylinder (31) and a seesaw (32); the cylinder (31) is vertically fixed on the top inner wall of the receiving half frame (12); a convex block (311) is fixed on the circumferential outer wall of the piston rod of the cylinder (31); the seesaw (32) is rotatably arranged on the assembled half frame (11); one end of the seesaw (32) is used to abut against the bottom end of the elastic telescopic member (21), and the other end of the seesaw (32) is used to abut against the convex block (311); the convex block (311) presses one end of the seesaw (32) downward, and the other end of the seesaw (32) presses the elastic telescopic member (21) upward.

2. A foam board welding device according to claim 1, characterized in that: The assembled half frame (11) is provided with an adjusting nut (41) and a vertical rod (4); the vertical rod (4) is vertically fixed on the top inner wall of the assembled half frame (11); the adjusting nut (41) is sleeved on the vertical rod (4) and is threadedly connected to the vertical rod (4); the top wall of the adjusting nut (41) is used to abut against the bottom end of the elastic telescopic member (21).

3. The foam board welding device according to claim 1, characterized in that: The frame (1) is provided with a power assembly (5), the power assembly (5) comprising a motor (51), a first screw rod (52), a second screw rod (53), a first gear (54), a second gear (55), a first slider (56) and a second slider (57), the first screw rod (52) and the second screw rod (53) being arranged in parallel and their length directions being arranged along the sliding direction of the assembled half frame (11), the motor (51) being fixedly connected to one end of the first screw rod (52), the other end of the first screw rod (52) being fixedly connected to the first gear (54), the first gear (54) being meshed with the second gear (55), and the second gear (55) being meshed with the first gear (56). The second gear (55) is fixedly connected to the end of the second screw rod (53); the middle of the first slider (56) is penetrated by the first screw rod (52) and the top is fixedly connected to the bottom of the assembled half frame (11); the middle of the second slider (57) is penetrated by the second screw rod (53) and the top is fixedly connected to the bottom of the heating plate (15); the frame (1) is provided with a double slideway (16) for the first slider (56) and the second slider (57) to slide in a direction close to or away from the receiving half frame (12); the first slider (56) is threadedly connected to the first screw rod (52), and the second slider (57) is threadedly connected to the second screw rod (53).

4. The foam board welding device according to claim 1, characterized in that: The heating plate (15) is a heating plate (15) that uses infrared radiation heating.

5. The foam board welding device according to claim 1, characterized in that: The heating plate (15) is a heating plate (15) using an electric heating method.

6. The foam board welding device according to claim 1, characterized in that: The heating plate (15) is a heating plate (15) using a fluid heating method.

7. The foam board welding device according to claim 1, characterized in that: The pressure plate (13) is provided with an air suction hole (131), which is located on the side wall of the pressure plate (13) facing the bottom plate (14). The pressure plate (13) is connected to an air pump tube (132), which is used to generate suction in the air suction hole (131).

8. The foam board welding device according to claim 7, characterized in that: The pressure plate (13) is a constant temperature plate.

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