A core material surface precision temperature control heating device for aluminum plastic panel production

Abstract

The application relates to the technical field of aluminum-plastic panel production equipment, in particular to a core material surface precise temperature control heating device for aluminum-plastic panel production, which comprises a processing table and a mounting frame welded at the top end of the processing table, a gas cylinder is mounted below the mounting frame, a downward pressing mechanism for exhausting the core material is arranged at the output end of the gas cylinder, the downward pressing mechanism comprises a downward pressing plate mounted at the output end of the gas cylinder, sliding grooves are arranged at the two sides of the downward pressing plate, auxiliary plates sliding along the sliding groove axes are arranged at the two sides of the downward pressing plate, and heating mechanisms are arranged on the side walls of the auxiliary plates. The auxiliary plates slide to the two sides along the surface of the core material, uniform pressure is formed on the core material surface, air wrapped in the core material is gradually extruded from the edges of the core material, residual air in the core material is removed, air interference in the subsequent heating process is eliminated, and the bulging phenomenon of the core material is reduced, so that the defective rate in the aluminum-plastic panel production process is reduced, and the production quality of the product is improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum composite panel production equipment technology, and in particular to a precise temperature control heating device for the surface of the core material used in aluminum composite panel production. Background Technology

[0002] Aluminum-plastic composite panels are a new type of composite material that combines the strength of metal materials with the toughness of polymer materials. Their core structure uses plastic as the core layer, with aluminum alloy thin plates on both sides. They achieve decorative and protective functions through surface coatings or protective films. The processing quality of the core layer directly determines the overall performance and service life of the aluminum-plastic panel.

[0003] In the industrial production process of aluminum composite panels, the heat treatment of the core material is one of the key processes. The core material needs to be softened by heat before it can be effectively bonded to the aluminum foil layer to ensure the bonding strength of the composite interface.

[0004] However, during the extrusion molding or cutting process, the core material is prone to encapsulating tiny air bubbles due to factors such as uneven melting of raw materials and fluctuations in air pressure in the processing environment. During the heating process, the air bubbles expand rapidly after being heated, forming irregular bulges on the surface of the core material, which damages the smoothness of the core material surface and leads to problems of localized poor adhesion when it is subsequently laminated with the aluminum foil layer.

[0005] In view of this, this paper studies and improves upon existing problems, and provides a precise temperature control heating device for the core material surface of aluminum composite panel production. The aim is to solve the problems and improve practical value through this technology. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a precise temperature control heating device for the core material surface of aluminum composite panel production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a precise temperature control heating device for the core material surface of aluminum composite panel production, comprising a processing table and a mounting frame welded to the top of the processing table, a cylinder installed below the mounting frame, and a pressing mechanism for venting the core material at the output end of the cylinder, the pressing mechanism comprising a pressing plate installed at the output end of the cylinder, the pressing plate having sliding grooves on both sides, and auxiliary plates sliding along the axis of the sliding grooves on both sides of the pressing plate;

[0008] The auxiliary plate is provided with a heating mechanism on its side wall. The heating mechanism includes a hot air blower installed on the side wall of the processing table. The output end of the hot air blower is connected to a hot air pipe. Each pair of auxiliary plates is provided with a spray pipe connected to the hot air pipe. Each pair of spray pipes is provided with a nozzle that is inclined and opposite to the other.

[0009] The outer wall of the hot air duct is provided with an adjustment mechanism for adjusting the amount of hot air intake.

[0010] The pressing mechanism has detection mechanisms on both sides. Each detection mechanism includes a movable plate that slides on the surface of the processing table. A sleeve is embedded in the surface of the movable plate. A pressure rod slides inside the sleeve. A test plate is installed at the bottom end of the pressure rod. An air storage cylinder is connected above the sleeve. A ball valve is installed below the air storage cylinder. A sealing component is installed inside the ball valve. A push rod that contacts the side of the movable plate is welded to the side wall of the auxiliary plate. An air supply pipe B connects the air storage cylinder and the hot air pipe.

[0011] Preferably, the two sides of the lower pressure plate are inclined surfaces, the interior of the slide groove is fixedly connected to the auxiliary plate by a first spring, and the auxiliary plate and the lower pressure plate are in contact with each other on opposite sides.

[0012] Preferably, the side wall of the lower pressure plate is provided with a limiting groove, a baffle is slidably provided on the surface of the lower pressure plate, one end of the baffle is slidably embedded in the limiting groove, and a collection groove is provided inside the lower pressure plate.

[0013] Preferably, the surface of the processing table is provided with a slot, and the inner wall of the slot is fixedly connected to the moving plate by a second spring.

[0014] Preferably, the hot air pipe and the nozzle are connected by an air supply pipe A, and the sleeve and the air storage cylinder are connected by a connecting pipe.

[0015] Preferably, the sealing assembly includes a sealing ball movably installed inside the ball valve, a spring rod is installed on the inner wall of the ball valve, one end of the spring rod is fixedly connected to a circular plate, and the top of the circular plate is movably connected to the sealing ball.

[0016] Preferably, the adjusting mechanism includes a control valve mounted on the surface of the hot air duct, a valve stem rotatably provided on the side wall of the control valve, a gear mounted on one end of the valve stem, a pull rod sliding on the side wall of the moving plate, a rack meshing with the gear fixedly mounted on one end of the pull rod, and the outer wall of the pressure rod fixedly connected to the pull rod.

[0017] Preferably, the test plate has an internal cavity, an exhaust pipe is connected between the cavity and the sleeve, the side wall of the test plate has an exhaust groove connected to the cavity, and the lower pressure plate has an internal collection groove.

[0018] Preferably, a third spring is provided inside the sleeve, and the third spring is sleeved on the outer wall of the pressure rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention uses the output end of a cylinder to extend downwards, causing the lower pressure plate to move downwards synchronously. As the lower pressure plate continues to descend, its inclined surface generates a lateral thrust on the auxiliary plates. A pair of auxiliary plates slide along the axis of the slide groove to both sides of the core material surface. During the sliding process, the auxiliary plates exert uniform pressure on the core material surface, gradually squeezing out the air trapped inside the core material from the edge of the core material, removing residual air inside the core material, eliminating air interference in the subsequent heating process, reducing the occurrence of bulging in the core material, thereby reducing the defect rate in the aluminum composite panel production process and improving the product quality.

[0021] 2. This invention uses a hot air blower to deliver hot air into the hot air pipe, and then through the air supply pipe A between the hot air pipe and the nozzle, the hot air is delivered into the nozzle installed on the side wall of a pair of auxiliary plates. Finally, the hot air is ejected from the nozzle on the surface of the nozzle. The ejected hot air acts on the surface of the core material in a downward direction. The two sets of opposing hot air jets form convection on the surface of the core material, which allows the hot air to evenly cover the surface of the core material, avoids local temperature differences, achieves uniform heating, ensures that all areas of the core material are heated evenly, and meets the process requirements for temperature uniformity. At the same time, the convective hot air forms a relatively stable thermal environment on the surface of the core material, which plays a certain role in heat preservation of the heated core material surface, reduces rapid heat loss, maintains the surface temperature of the core material, and avoids the impact of temperature fluctuations on the processing quality of the core material.

[0022] 3. This invention utilizes a portion of hot gas delivered to the gas storage cylinder via gas pipe B. As hot gas continues to enter, the gas inside the storage cylinder accumulates, and the pressure gradually increases. When the pressure inside the storage cylinder reaches a preset threshold, the pressure generated by the gas pushes open the sealing ball inside the ball valve. The gas enters the connecting pipe through the gap and then flows into the sleeve through the connecting pipe. As the gas accumulates in the sleeve, the gas pressure inside the sleeve increases synchronously. The high-pressure gas exerts a downward thrust on the pressure rod inside the sleeve, causing the test plate to compress the surface of the core material below. By pressurizing the gas to simulate the pressure changes of the core material in actual use, the structural stability of the core material under different pressures can be accurately detected. This can effectively screen out core materials that do not meet the requirements for compressive strength, avoiding problems such as deformation and cracking of the aluminum composite panel in subsequent use due to insufficient compressive strength of the core material. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the pressing mechanism of the present invention;

[0025] Figure 3 This is an exploded view of the lower pressure plate and auxiliary plate of the present invention;

[0026] Figure 4This is a three-dimensional structural diagram of the heating mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the detection mechanism structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section A;

[0030] Figure 8 This is a partial structural schematic diagram of the present invention.

[0031] Legend:

[0032] 1. Processing table; 2. Mounting frame; 3. Cylinder; 4. Pressing mechanism; 41. Pressing plate; 42. Auxiliary plate; 43. Slide groove; 44. Baffle; 5. Heating mechanism; 51. Hot air blower; 52. Hot air pipe; 53. Spray pipe; 54. Nozzle; 55. Air supply pipe A; 6. Adjusting mechanism; 61. Control valve; 62. Valve stem; 63. Gear; 64. Pull rod; 65. Rack; 7. Detection mechanism; 71. Moving plate; 72. Empty slot; 73. Sleeve; 74. Pressure rod; 75. Test plate; 76. Air storage tank; 77. Ball valve; 78. Sealing ball; 79. Spring rod; 710. Connecting pipe; 711. Push rod; 712. Air supply pipe B; 713. Circular plate; 8. Cavity; 9. Exhaust pipe; 10. Collection tank. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] See Figures 1 to 8 As shown, the present invention provides a precise temperature control heating device for the core material surface of aluminum composite panel production, including a processing table 1 and a mounting frame 2 welded to the top of the processing table 1. A cylinder 3 is installed below the mounting frame 2. The output end of the cylinder 3 is provided with a pressing mechanism 4 for venting the core material. The pressing mechanism 4 includes a pressing plate 41 installed at the output end of the cylinder 3. Slide grooves 43 are opened on both sides of the pressing plate 41. Auxiliary plates 42 that slide along the axis of the slide grooves 43 are provided on both sides of the pressing plate 41.

[0035] It should be noted that when heating the core material of the aluminum composite panel is required, the operator first manually lifts the pull rod 64 to move it upward. Since the pull rod 64 is fixedly connected to the pressure rod 74, the upward movement of the pull rod 64 will synchronously drive the pressure rod 74 to move upward. The test plate 75 is installed at the bottom of the pressure rod 74, so the test plate 75 will move upward along with the pressure rod 74. During this process, the pressure rod 74 will stretch the synchronous third spring. The third spring stores elastic potential energy due to deformation. Once the test plate 75 moves to a suitable height where the core material can be placed smoothly... After the temperature is reached, the staff will place the core material to be heated steadily in the designated position on the processing table 1, ensuring that the core material is placed neatly without any offset or tilt that would affect subsequent processing. After the core material is placed, the staff will release the pull rod 64. At this time, the third spring will release the elastic potential energy stored in the previous step, generating a downward pulling force, which will drive the pressure rod 74 and the pull rod 64 to reset synchronously. This will cause the test plate 75 to move downward and fit tightly against the surface of the core material, thereby achieving pre-compression of the core material and preventing the core material from shifting in subsequent processes, thus improving the processing accuracy of the aluminum composite panel product.

[0036] After the core material is pre-pressed and positioned, cylinder 3 is activated. The output end of cylinder 3 extends downward, driving the connected lower pressure plate 41 to move downward synchronously. The lower pressure plate 41 has sliding grooves 43 on both sides. Therefore, during the descent of the lower pressure plate 41, a pair of auxiliary plates 42 will contact the surface of the core material before the lower pressure plate 41. After the auxiliary plates 42 contact the surface of the core material, the output end of cylinder 3 continues to drive the lower pressure plate 41 to descend. As the lower pressure plate 41 continues to descend, its inclined surface will generate a lateral thrust on the auxiliary plates 42. Under the action of this thrust, the pair of auxiliary plates 42 will slide along the axis of the sliding grooves 43 and along the surface of the core material to both sides. During the sliding process, the auxiliary plates 42 will form a uniform pressure on the surface of the core material, gradually squeezing out the air trapped inside the core material from the edge of the core material, removing the residual air inside the core material, eliminating air interference for subsequent heating processes, reducing the occurrence of bulging in the core material, thereby reducing the defect rate in the aluminum composite panel production process and improving the production quality of the product.

[0037] A heating mechanism 5 is provided on the side wall of the auxiliary plate 42. The heating mechanism 5 includes a hot air blower 51 installed on the side wall of the processing table 1. The output end of the hot air blower 51 is connected to a hot air pipe 52. A nozzle 53 connected to the hot air pipe 52 is installed on the side wall of a pair of auxiliary plates 42. A nozzle 54 is installed on the surface of a pair of nozzles 53 that are inclined and opposite to each other.

[0038] It should be noted that while the auxiliary plate 42 moves to both sides of the core material surface, the hot air blower 51 in the side wall heating mechanism 5 of the auxiliary plate 42 is activated. The hot air generated by the hot air blower 51 is delivered to the inside of the hot air pipe 52, and then through the air supply pipe A55 between the hot air pipe 52 and the nozzle 53, the hot air is delivered to the inside of the nozzles 53 installed on the side wall of the auxiliary plate 42, and finally sprayed out from the nozzles 54 on the surface of the nozzles 53. Since the nozzles 54 on the pair of nozzles 53 are set at an angle to each other, the sprayed hot air will act on the core material surface in an angled downward direction. The two sets of oppositely sprayed hot air form convection on the core material surface, which can make the hot air evenly cover the core material surface, avoid local temperature differences, achieve uniform heating, ensure that the core material is heated in a consistent manner, meet the process requirements for temperature uniformity, and at the same time, the convected hot air forms a relatively stable thermal environment on the core material surface, which plays a certain role in heat preservation of the heated core material surface, reduces the rapid loss of heat, maintains the stability of the core material surface temperature, and avoids the impact of temperature fluctuations on the core material processing quality.

[0039] The outer wall of the hot air duct 52 is provided with an adjustment mechanism 6 for adjusting the amount of hot air intake;

[0040] It should be noted that as the pull rod 64 moves upward, it moves synchronously upward along the side wall of the movable plate 71. A rack 65 is fixedly installed at the top of the pull rod 64. Therefore, the upward movement of the pull rod 64 will cause the rack 65 to move upward synchronously. Since the rack 65 meshes with the gear 63 at one end of the valve stem 62, the movement of the rack 65 will drive the gear 63 to rotate. The rotation of the gear 63 will then drive the valve stem 62, which is fixedly connected to it, to rotate synchronously. The rotation of the valve stem 62 can adjust the opening of the control valve 61. The size determines the flow rate of hot air in the hot air duct 52. Depending on the thickness of the core material, the operator can indirectly control the movement distance of the rack 65 by raising the height of the pull rod 64. This causes the valve rod 62 to drive the control valve 61 to adjust to the appropriate opening, achieving initial adaptive adjustment of the hot air intake. This allows the hot air intake in the hot air duct 52 to match the thickness of the core material. Thicker core materials can obtain a larger air intake to ensure heating efficiency, while thinner core materials reduce the air intake to avoid overheating, thus achieving precise control of the heating requirements of core materials with different thicknesses.

[0041] The pressing mechanism 4 is equipped with detection mechanisms 7 on both sides. The detection mechanism 7 includes a movable plate 71 that slides on the surface of the processing table 1. A sleeve 73 is embedded in the surface of the movable plate 71. A pressure rod 74 slides inside the sleeve 73. A test plate 75 is installed at the bottom end of the pressure rod 74. An air storage cylinder 76 is connected above the sleeve 73. A ball valve 77 is installed below the air storage cylinder 76. A sealing component is provided inside the ball valve 77. A push rod 711 that contacts the side of the movable plate 71 is welded to the side wall of the auxiliary plate 42. An air supply pipe B712 is connected between the air storage cylinder 76 and the hot air pipe 52.

[0042] It should be noted that when the hot air generated by the hot air blower 51 enters the hot air pipe 52, a portion of the hot air is transported through the air supply pipe B712 to the air storage cylinder 76 of the detection mechanism 7. As the hot air continues to enter, the gas inside the air storage cylinder 76 accumulates, and the pressure gradually increases. When the pressure inside the air storage cylinder 76 reaches a preset threshold, the pressure generated by the gas will push the sealing ball 78 inside the ball valve 77 downward. The sealing ball 78 moves downward and squeezes the circular plate 713 in contact with it. After being subjected to pressure, the circular plate 713 pushes the spring rod 79 downward to contract, causing the spring rod 79 to deform. At this time, a gap is formed between the air storage cylinder 76 and the sealing ball 78. The gas enters the connecting pipe 710 through this gap, and then through the connecting pipe... 710 flows into the sleeve 73. As the gas accumulates in the sleeve 73, the gas pressure inside the sleeve 73 increases synchronously. The high-pressure gas exerts a downward thrust on the pressure rod 74 inside the sleeve 73. The pressure rod 74 transmits this thrust to the test plate 75 installed at its bottom end, causing the test plate 75 to compress the surface of the core material below. As the gas pressure inside the sleeve 73 continues to rise, the compressive force of the test plate 75 on the surface of the core material continues to increase. By simulating the pressure changes of the core material in actual use through gas pressurization, the structural stability of the core material under different pressures can be accurately detected. Core materials that do not meet the requirements for compressive strength can be effectively screened out, avoiding problems such as deformation and cracking of the aluminum composite panel in subsequent use due to insufficient compressive strength of the core material.

[0043] Meanwhile, as the auxiliary plate 42 moves to both sides of the core material, when the auxiliary plate 42 moves to a certain position, the push rod 711 welded to the side wall of the auxiliary plate 42 will contact the side of the moving plate 71. As the auxiliary plate 42 continues to move to both sides, the push rod 711 generates a lateral thrust on the moving plate 71, pushing a pair of moving plates 71 to move in opposite directions along the surface of the processing table 1. During the sliding process, the moving plate 71 simultaneously drives the test plate 75 to move to both sides of the core material. At this time, the test plate 75 still maintains contact with the surface of the core material. During the process of moving to both sides, it generates a tensile force on the core material, thereby realizing the detection of the tensile force of the core material. Through the tensile force detection, the toughness and fracture resistance of the core material can be effectively evaluated, ensuring that the core material can withstand a certain tensile force without damage in subsequent processing or use, and further improving the control of the core material quality.

[0044] After the core material compression test is completed, the staff turns off the hot air blower 51, then manually opens the exhaust valve on the surface of the exhaust pipe 9, and simultaneously lifts the pull rod 64 upward. As the pull rod 64 moves upward, it drives the pressure rod 74 to move upward in sync. As the pressure rod 74 slides upward inside the sleeve 73, it compresses the gas inside the sleeve 73, forcing the gas inside the sleeve 73 to flow into the cavity 8 inside the test plate 75 through the exhaust pipe 9, and finally discharges from the exhaust groove opened on the side wall of the test plate 75. Before this, the auxiliary plate 42 of the pressing mechanism 4 has scraped off the impurities on the surface of the core material when it moves to both sides of the core material. The gas discharged from the exhaust groove can blow these scraped impurities directly into the collection groove 10 opened inside the lower pressing plate 41, realizing the centralized collection of impurities, ensuring the cleanliness of the core material surface, further improving the production quality of aluminum composite panels, and reducing the labor intensity and time cost of manual cleaning.

[0045] See Figures 2 to 3 As shown, the two sides of the lower pressure plate 41 are inclined surfaces. The interior of the slide groove 43 is fixedly connected to the auxiliary plate 42 by the first spring. The auxiliary plate 42 and the lower pressure plate 41 are in contact with each other on opposite sides. The inclined surfaces on both sides of the lower pressure plate 41 provide lateral guidance for the auxiliary plate 42. With the contact of the two on opposite sides, it is ensured that the auxiliary plate 42 can slide smoothly to both sides along the surface of the core material when the lower pressure plate 41 descends.

[0046] See Figure 2 As shown, a limiting groove is provided on the side wall of the lower pressure plate 41, and a baffle 44 slides on the surface of the lower pressure plate 41. One end of the baffle 44 is slidably embedded in the limiting groove. A collection groove 10 is provided inside the lower pressure plate 41. The baffle 44 can block the gap of the collection groove 10 on the side of the lower pressure plate 41 to prevent impurities from being discharged and affecting the operation of the lower pressure mechanism 4.

[0047] See Figure 6 As shown, the surface of the processing table 1 is provided with a slot 72. The inner wall of the slot 72 is fixedly connected to the moving plate 71 by a second spring. The slot 72 on the surface of the processing table 1 provides sliding space for the moving plate 71, ensuring that when the auxiliary plate 42 pushes the moving plate 71 by the push rod 711, the moving plate 71 can slide smoothly in a preset direction, providing a basis for tensile testing. The second spring on the inner wall of the slot 72 is fixed to the moving plate 71, and after the test is completed, the moving plate 71 can be driven back to the initial position by the reset force of the second spring.

[0048] See Figure 4 and Figure 6 As shown, a gas delivery pipe A55 connects the hot air pipe 52 and the nozzle 53, and a connecting pipe 710 connects the sleeve 73 and the gas storage cylinder 76 to facilitate the delivery of hot air.

[0049] See Figures 6 to 7As shown, the sealing assembly includes a sealing ball 78 movably installed inside the ball valve 77, a spring rod 79 installed on the inner wall of the ball valve 77, a circular plate 713 fixedly connected to one end of the spring rod 79, and the top of the circular plate 713 movably connected to the sealing ball 78.

[0050] See Figure 5 As shown, the regulating mechanism 6 includes a control valve 61 installed on the surface of the hot air duct 52. A valve stem 62 is rotatably provided on the side wall of the control valve 61. A gear 63 is installed at one end of the valve stem 62. A pull rod 64 slides on the side wall of the moving plate 71. A rack 65 that meshes with the gear 63 is fixedly installed at one end of the pull rod 64. The outer wall of the pressure rod 74 is fixedly connected to the pull rod 64.

[0051] See Figure 8 As shown, the test plate 75 has a cavity 8 inside, and an exhaust pipe 9 is connected between the cavity 8 and the sleeve 73. The side wall of the test plate 75 has an exhaust groove that communicates with the cavity 8, and the lower pressure plate 41 has a collection groove 10 inside.

[0052] See Figure 6 As shown, a third spring is provided inside the sleeve 73. The third spring is sleeved on the outer wall of the pressure rod 74. The pressure rod 74 is assisted to return to its downward position by the restoring force of the third spring.

[0053] Working principle: When heating the core material of the aluminum composite panel is required, the operator first manually lifts the pull rod 64 to move it upward. Since the pull rod 64 is fixedly connected to the pressure rod 74, the upward movement of the pull rod 64 will synchronously drive the pressure rod 74 to move upward. The test plate 75 is installed at the bottom of the pressure rod 74, so the test plate 75 will move upward with the pressure rod 74. During this process, the pressure rod 74 will stretch the synchronous third spring. The third spring stores elastic potential energy due to deformation. After the test plate 75 moves to a suitable height where the core material can be placed smoothly, the operator places the core material to be heated stably in the designated position on the processing table 1, ensuring that the core material is placed neatly without any offset or tilt that would affect subsequent processing. After the core material is placed, the operator releases the pull rod 64. At this time, the third spring releases the elastic potential energy stored earlier, generating a downward pulling force, which drives the pressure rod 74 and the pull rod 64 to reset synchronously, thereby causing the test plate 75 to move downward and closely adhere to the surface of the core material.

[0054] After the core material is pre-pressed and positioned, cylinder 3 is activated. The output end of cylinder 3 extends downward, driving the lower pressure plate 41 connected to it to move downward synchronously. The lower pressure plate 41 has sliding grooves 43 on both sides. Therefore, during the descent of the lower pressure plate 41, a pair of auxiliary plates 42 will contact the surface of the core material before the lower pressure plate 41. After the auxiliary plates 42 contact the surface of the core material, the output end of cylinder 3 continues to drive the lower pressure plate 41 to descend. As the lower pressure plate 41 continues to descend, its inclined surface will generate a lateral thrust on the auxiliary plates 42. Under the action of this thrust, the pair of auxiliary plates 42 will slide along the axial direction of the sliding grooves 43 and along the surface of the core material to both sides.

[0055] As the auxiliary plate 42 moves to both sides of the core material surface, the hot air blower 51 in the side wall heating mechanism 5 of the auxiliary plate 42 is activated. The hot air generated by the hot air blower 51 is delivered to the inside of the hot air pipe 52, and then through the air supply pipe A55 between the hot air pipe 52 and the nozzle 53, the hot air is delivered to the inside of the nozzles 53 installed on the side wall of the auxiliary plate 42, and finally sprayed out from the nozzles 54 on the surface of the nozzles 53. Since the nozzles 54 on the pair of nozzles 53 are set at an angle to each other, the sprayed hot air will act on the core material surface in an angled downward direction, and the two sets of oppositely sprayed hot air form convection on the core material surface.

[0056] As the pull rod 64 moves upward, it moves synchronously upward along the side wall of the movable plate 71. A rack 65 is fixedly installed at the top of the pull rod 64. Therefore, the upward movement of the pull rod 64 will drive the rack 65 to move upward synchronously. Since the rack 65 meshes with the gear 63 at one end of the valve stem 62, the movement of the rack 65 will drive the gear 63 to rotate. The rotation of the gear 63 will drive the valve stem 62, which is fixedly connected to it, to rotate synchronously. The opening of the control valve 61 can be adjusted by rotating the valve stem 62. The opening of the control valve 61 determines the flow rate of hot air in the hot air pipe 52. The operator can indirectly control the moving distance of the rack 65 by raising the pull rod 64 according to the thickness of the core material, thereby causing the valve stem 62 to drive the control valve 61 to adjust to the appropriate opening.

[0057] When the hot air generated by the hot air blower 51 enters the hot air pipe 52, some of the hot air is transported to the air storage cylinder 76 of the detection mechanism 7 through the air supply pipe B712. As the hot air continues to enter, the gas inside the air storage cylinder 76 accumulates and the pressure gradually increases. When the pressure inside the air storage cylinder 76 reaches a preset threshold, the pressure generated by the gas will push the sealing ball 78 inside the ball valve 77 downward. The sealing ball 78 moves downward and squeezes the circular plate 713 in contact with it. After being pressured, the circular plate 713 pushes the spring rod 79. The downward contraction causes the spring rod 79 to deform. At this time, a gap is formed between the gas storage cylinder 76 and the sealing ball 78. The gas enters the connecting pipe 710 through the gap and then flows into the sleeve 73 through the connecting pipe 710. As the gas accumulates in the sleeve 73, the gas pressure inside the sleeve 73 increases synchronously. The high-pressure gas exerts a downward thrust on the pressure rod 74 inside the sleeve 73. The pressure rod 74 transmits this thrust to the test plate 75 installed at its bottom end, so that the test plate 75 compresses the surface of the core material below.

[0058] Meanwhile, as the auxiliary plate 42 moves to both sides of the core material, when the auxiliary plate 42 moves to a certain position, the push rod 711 welded to the side wall of the auxiliary plate 42 will contact the side of the moving plate 71. As the auxiliary plate 42 continues to move to both sides, the push rod 711 generates a lateral thrust on the moving plate 71, pushing a pair of moving plates 71 to move in opposite directions along the surface of the processing table 1. During the sliding process, the moving plate 71 synchronously drives the test plate 75 to move to both sides of the core material. At this time, the test plate 75 still maintains contact with the surface of the core material and generates a tensile force on the core material during the process of moving to both sides.

[0059] After the core material compressive strength test is completed, the staff turns off the hot air blower 51, then manually opens the exhaust valve on the surface of the exhaust pipe 9, and at the same time lifts the pull rod 64 upward. When the pull rod 64 moves upward, it drives the pressure rod 74 to move upward in sync. As the pressure rod 74 slides upward inside the sleeve 73, it compresses the gas inside the sleeve 73, forcing the gas inside the sleeve 73 to flow into the cavity 8 inside the test plate 75 through the exhaust pipe 9, and finally discharges from the exhaust groove opened on the side wall of the test plate 75.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision temperature control heating device for the core material surface of aluminum composite panel production, comprising a processing table (1) and a mounting frame (2) welded to the top of the processing table (1), wherein a cylinder (3) is mounted below the mounting frame (2), characterized in that: The cylinder (3) is provided with a pressing mechanism (4) for venting the core material at its output end. The pressing mechanism (4) includes a pressing plate (41) installed at the output end of the cylinder (3). The pressing plate (41) has sliding grooves (43) on both sides. The pressing plate (41) has auxiliary plates (42) that slide along the axis of the sliding grooves (43) on both sides. The auxiliary plate (42) has a heating mechanism (5) on its side wall. The heating mechanism (5) includes a hot air blower (51) installed on the side wall of the processing table (1). The output end of the hot air blower (51) is connected to a hot air pipe (52). Each pair of auxiliary plates (42) has a nozzle (53) connected to the hot air pipe (52) on its side wall. Each pair of nozzles (53) has a nozzle (54) installed on its surface in an inclined and opposite manner. The outer wall of the hot air duct (52) is provided with an adjustment mechanism (6) for adjusting the hot air intake. The pressing mechanism (4) is provided with detection mechanisms (7) on both sides. The detection mechanism (7) includes a movable plate (71) that slides on the surface of the processing table (1). A sleeve (73) is embedded in the surface of the movable plate (71). A pressure rod (74) slides inside the sleeve (73). A test plate (75) is installed at the bottom end of the pressure rod (74). An air storage cylinder (76) is connected above the sleeve (73). A ball valve (77) is installed below the air storage cylinder (76). A sealing component is provided inside the ball valve (77). A push rod (711) that contacts the side of the movable plate (71) is welded to the side wall of the auxiliary plate (42). An air supply pipe B (712) is connected between the air storage cylinder (76) and the hot air pipe (52). The regulating mechanism (6) includes a control valve (61) installed on the surface of the hot air duct (52). A valve stem (62) is rotatably provided on the side wall of the control valve (61). A gear (63) is installed at one end of the valve stem (62). A pull rod (64) slides on the side wall of the moving plate (71). A rack (65) that meshes with the gear (63) is fixedly installed at one end of the pull rod (64). The outer wall of the pressure rod (74) is fixedly connected to the pull rod (64).

2. The precise temperature control heating device for the core material surface in aluminum composite panel production according to claim 1, characterized in that: The two sides of the lower pressure plate (41) are inclined surfaces. The interior of the slide groove (43) is fixedly connected to the auxiliary plate (42) by the first spring. The auxiliary plate (42) and the lower pressure plate (41) are in contact with each other on opposite sides.

3. The precise temperature control heating device for the core material surface in aluminum composite panel production according to claim 1, characterized in that: The side wall of the lower pressure plate (41) is provided with a limiting groove, and a baffle (44) slides on the surface of the lower pressure plate (41). One end of the baffle (44) is slidably embedded in the limiting groove, and a collection groove (10) is provided inside the lower pressure plate (41).

4. The precise temperature control heating device for the core material surface in aluminum composite panel production according to claim 1, characterized in that: The surface of the processing table (1) is provided with a slot (72), and the inner wall of the slot (72) is fixedly connected to the moving plate (71) by a second spring.

5. The precise temperature control heating device for the core material surface in aluminum composite panel production according to claim 1, characterized in that: The hot air pipe (52) and the nozzle (53) are connected by an air supply pipe A (55), and the sleeve (73) and the air storage cylinder (76) are connected by a connecting pipe (710).

6. The precise temperature control heating device for the core material surface in aluminum composite panel production according to claim 1, characterized in that: The sealing assembly includes a sealing ball (78) movably installed inside a ball valve (77), a spring rod (79) installed on the inner wall of the ball valve (77), a circular plate (713) fixedly connected to one end of the spring rod (79), and the top of the circular plate (713) movably connected to the sealing ball (78).

7. The precise temperature control heating device for the core material surface in aluminum composite panel production according to claim 1, characterized in that: The test plate (75) has an internal cavity (8), and an exhaust pipe (9) is connected between the cavity (8) and the sleeve (73). The side wall of the test plate (75) has an exhaust groove connected to the cavity (8), and the lower pressure plate (41) has an internal collection groove (10).

8. The precise temperature control heating device for the core material surface in aluminum composite panel production according to claim 1, characterized in that: The sleeve (73) is provided with a third spring inside, which is sleeved on the outer wall of the pressure rod (74).

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