Rapid shape fixing mold for foam packaging box production

Abstract

The invention relates to the technical field of foam packaging box production, in particular to a rapid shape fixing mold for foam packaging box production, which comprises support plates and guide rods, a plurality of parallel guide rods are fixedly connected between the two support plates, the support plates and the guide rods form a main body bracket of the mold equipment, a mold I is slidably connected to the guide rods, and a mold II is slidably connected to the guide rods. A first hydraulic cylinder is fixedly arranged on the supporting plate on one side, a piston rod of the first hydraulic cylinder is connected with a first mold, and a feeding connector for adding cured EPS raw materials is assembled on the top of the first mold. A first hydraulic cylinder and a second hydraulic cylinder are integrated to control actions of a first mold and a hot-pressing block correspondingly, rapid heating, expansion and curing of cured EPS raw materials are achieved, meanwhile, a first cooling valve and a second cooling valve are rapidly cooled in a forming cavity, and finally a cooled foam packaging box is dehumidified and dried through high-temperature gas in cooperation with a drying mechanism. And integrated curing forming of the foam box is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of foam packing box production, and particularly to a rapid solidification mold for foam packing box production. Background Art

[0002] A foam packing box generally refers to a packaging container made of polystyrene (EPS), polyurethane (PU), or other foamed plastics. These materials are lightweight, highly elastic, and have excellent cushioning performance, so they are widely used to protect fragile items and ensure the safety of products during transportation. The foam packing box can not only provide good physical protection but also has certain heat insulation and sound insulation effects, making it an ideal choice for products such as electronic products, household appliances, and glass products that require special protection.

[0003] After retrieval, a mold for foam packing box production and processing with the patent authorization announcement number CN215434973U includes a workbench. A groove and an annular groove are opened at the top of the workbench. A support frame is fixedly installed on the top of the workbench. A second hydraulic cylinder is fixedly installed on the support frame. A piston rod is fixedly connected to the second hydraulic cylinder. A pressing plate is fixedly installed at one end of the piston rod away from the hydraulic rod. A jacking mechanism is installed on the workbench, and the jacking mechanism is matched with a rotating mechanism. The above-mentioned processing mold uses the jacking mechanism to eject the processed foam packing box in the mold, achieving the effect of simplifying the manual material taking operation. However, after demoulding, the foam box blank still needs to be manually collected, bundled, and transported, and then sent to a large drying workshop for drying treatment before it can become the final finished product. This step still requires a large amount of labor, time, and equipment investment, resulting in low production efficiency and continuity. Summary of the Invention

[0004] In order to overcome the above-mentioned disadvantages of the prior art, the present invention provides a rapid solidification mold for foam packing box production.

[0005] The technical solution of the present invention is as follows: A rapid solidification mold for the production of foam packing boxes, which includes a support plate and guide rods. A plurality of parallel guide rods are fixedly connected between the two support plates. The support plate and the guide rods form the main bracket of this mold equipment. A mold one is slidably connected to the guide rods. A hydraulic cylinder one is fixedly installed on one side of the support plate. The piston rod of the hydraulic cylinder one is connected to the mold one. A feeding joint for adding matured EPS raw materials is assembled on the top of the mold one. It also includes a mold plate. Sliding cavities are opened on the four sides of the inner wall of the cavity of the mold one. The mold plate is slidably assembled in the sliding cavity of the mold one. The mold plates are sealed between them to form a forming cavity for pressing the foam box. A cooling valve one for injecting cooling water into the forming cavity is installed on the top of the mold one. A cooling valve two for discharging the cooling water is installed at the bottom of the mold one. A hydraulic cylinder two is fixedly installed on the other side of the support plate. A hot pressing block is fixedly connected to the piston rod of the hydraulic cylinder two. An electric heating wire for heating and curing the foam box is integrated inside the hot pressing block. A mold two is slidably connected to the guide rods. The mold two is an annular frame with an opening inside. The hot pressing block slidably penetrates through the mold two and fits against the inner wall of the ring. Push blocks protruding outward are fixedly connected to both outer walls of the hot pressing block. The push blocks are used to push the mold two so that the hot pressing block can drive the mold two to press against the mold one for solidification. A sealing member for sealing the mold one is provided on the frame of the mold two. The sealing member includes a sealing frame slidably embedded in the mold two through a connecting rod. The sealing frame faces the mold one. A connecting plate is fixedly connected to the end of the connecting rod of the sealing frame. An elastic member is provided between the connecting plate and the mold two. A driving mechanism for driving the mold plate to slide is provided on the mold one. A drying mechanism for drying and solidifying the foam box is also provided on the mold one.

[0006] Further explanation, the sealing member includes a sealing frame slidably embedded in the mold two through a connecting rod. A connecting plate is fixedly connected to the end of the connecting rod of the sealing frame. An elastic member is provided between the connecting plate and the mold two.

[0007] Further explanation, on both the top and bottom of the side of the mold one close to the mold two, electromagnets one are fixedly installed. On both the top and bottom of the side of the mold two close to the mold one, electromagnets two are also fixedly installed. The electromagnets one and the electromagnets two are adapted to each other and have opposite magnetic poles when energized.

[0008] Further explanation, the driving mechanism includes a hydraulic push rod, a connecting pipe, a hydraulic pump and a suction pipe. Hydraulic push rods are fixedly embedded on the four sides of the inner wall of the cavity of the mold one. Hydraulic oil is stored in the cylinders of the hydraulic push rods. The push rods of the hydraulic push rods penetrate through the mold one and are connected to the corresponding mold plates on the same side. The cylinders of the hydraulic push rods are connected as a whole through the connecting pipe. A hydraulic pump is fixedly installed on the outer wall of the mold one. The hydraulic pump is connected to the cylinder of one of the hydraulic push rods through the suction pipe. The hydraulic pump is used to control the synchronous expansion and contraction of multiple hydraulic push rods.

[0009] Further explanation: The drying mechanism includes a heater, a drying air pump, and an air delivery pipe. A heater is fixedly assembled on the top outer wall of the first mold, and a drying air pump is also fixedly installed on the top outer wall of the first mold. The air inlet of the drying air pump is communicated with the heater through a pipe. An air delivery pipe is fixedly embedded in the frame of the first mold, and the air delivery pipe and the air outlet pipe are fixedly embedded on the upper mold plate. The air outlet of the drying air pump is communicated with the air delivery pipe through a pipe for drying.

[0010] Further explanation: An exhaust valve is installed on the top of the frame of the first mold. The exhaust valve is a one-way valve that conducts unidirectionally from the inside to the outside of the first mold. The exhaust valve is used to synchronously discharge the drying gas injected into the first mold by the drying air pump, so as to balance the air pressure between the forming cavity of the first mold and the outside.

[0011] Further explanation: A plurality of arc cavities are formed in the plate body of the bottom mold plate in the first mold. A through hole is provided at the top of the arc cavity. A switching member is provided in the arc cavity. The switching member is used to open or close the through hole of the arc cavity on the mold plate. A high-pressure air pump is fixedly installed on the outer side wall of the first mold, and the high-pressure air pump is communicated with the switching member through a flexible hose.

[0012] Further explanation: The switching member includes an arc frame, a nozzle, and a micro motor. An arc frame is rotatably installed in the arc cavity of the bottom mold plate in the first mold. The arc surface of the arc frame is in sealed sliding contact with the arc cavity. A nozzle is fixedly provided inside the arc frame. The air outlet of the nozzle passes through the frame body of the arc frame. The nozzle is communicated with the corresponding high-pressure air pump through a flexible hose. A micro motor is fixedly provided in the arc cavity of the mold plate, and the output shaft of the micro motor is connected to the arc frame.

[0013] Further explanation: A ejecting member for demolding is provided at the support plate where the first hydraulic cylinder is located. The ejecting member includes an ejecting frame and a top plate. The ejecting frame is fixedly connected to the support plate where the first hydraulic cylinder is located. The ejecting frame penetrates through the top rod into the frame of the first mold. The end of the top rod of the ejecting frame is fixedly provided with a top plate, and the top plate is embedded and flush with the inner wall of the mold cavity of the first mold.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention integrates the first hydraulic cylinder and the second hydraulic cylinder to respectively control the actions of the first mold and the hot pressing block, realizing the rapid heating, expansion, and curing of the matured EPS raw material. At the same time, the first cooling valve and the second cooling valve rapidly cool in the forming cavity. Finally, in cooperation with the drying mechanism, high-temperature gas is used to dehumidify and dry the cooled foam packing box, realizing the integrated curing and forming of the foam box.

[0015] 2. The present invention can prevent the leakage of EPS raw materials or the entry of external air by ensuring the sealing of the forming cavity during the hot pressing process through the seal, thereby guaranteeing the product quality. The arrangement of electromagnet one and electromagnet two is utilized to further enhance the sealing effect. After the hot pressing and cooling are completed, the sealed state is maintained by magnetic force, providing a good environment for subsequent drying.

[0016] 3. The present invention can also synchronously control the movement of multiple mold plates through the driving mechanism, enabling the mold plates to separate from the foam box. In cooperation with the high-pressure air pump, air can be supplied to each air nozzle through a hose to blow up the solidified foam box, further improving the drying effect at the bottom of the foam box and ensuring uniform drying of the entire foam box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the support plate, guide rod, mold one, hot pressing block and mold two of the present invention.

[0019] Figure 3 It is a cross-sectional view of the internal structures of mold one and mold two of the present invention.

[0020] Figure 4 It is a schematic diagram of the cooperation relationship among the hot pressing block, pushing block, heating wire and mold two of the present invention.

[0021] Figure 5 It is a connection relationship diagram of the specific components of mold one, mold plate and driving mechanism of the present invention.

[0022] Figure 6 It is a schematic diagram of the specific components of mold one and drying mechanism of the present invention.

[0023] Figure 7 It is a connection relationship diagram of the mold plate, switching member, high-pressure air pump and hose of the present invention.

[0024] Figure 8 It is a connection relationship diagram of the arc frame, air nozzle and micro motor of the present invention.

[0025] Figure 9 It is a three-dimensional structural schematic diagram of mold one and ejecting member of the present invention.

[0026] Names and serial numbers of components in the figure: 1. Support plate, 2. Guide rod, 3. Die 1, 30. Hydraulic cylinder 1, 31. Feeding joint, 32. Die plate, 321. Sliding cavity, 322. Arc cavity, 33. Cooling valve 1, 331. Cooling valve 2, 4. Hot pressing block, 41. Hydraulic cylinder 2, 42. Electric heating wire, 43. Pusher block, 5. Die 2, 6. Sealing element, 61. Sealing frame, 611. Connecting rod, 62. Connecting plate, 63. Elastic element, 71. Electromagnet 1, 72. Electromagnet 2, 8. Driving mechanism, 81. Hydraulic push rod, 82. Connecting pipe, 83. Hydraulic pump, 84. Suction pipe, 9. Drying mechanism, 91. Heater, 92. Drying air pump, 93. Air delivery pipe, 94. Exhaust valve, 10. Switching element, 101. Arc frame, 102. Air nozzle, 103. Micro motor, 11. High-pressure air pump, 12. Hose, 13. Ejecting element, 131. Ejecting frame, 132. Top plate. Detailed implementation mode

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0028] Embodiment 1: A rapid solidification mold for producing foam packaging boxes, as Figures 1-4As shown in the figure, it includes a support plate 1 and guide rods 2. A plurality of parallel guide rods 2 are fixedly connected between the two support plates 1. The support plate 1 and the guide rods 2 constitute the main bracket of this mold equipment. A mold one 3 is slidably connected to the guide rods 2. A hydraulic cylinder one 30 is fixedly installed on one side support plate 1. The piston rod of the hydraulic cylinder one 30 is connected to the mold one 3. A feeding joint 31 for adding matured EPS raw materials is assembled on the top of the mold one 3. It also includes a mold plate 32. Sliding cavities 321 are opened on the four sides of the inner wall of the cavity of the mold one 3. Mold plates 32 are slidably assembled in the sliding cavities 321 of the mold one 3. The cavity surrounded by the mold plates 32 constitutes a forming cavity for pressing a foam box. A cooling valve one 33 for injecting cooling water into the forming cavity is installed on the top of the mold one 3. A cooling valve two 331 for discharging the cooling water is installed at the bottom of the mold one 3. A hydraulic cylinder two 41 is fixedly installed on the other side support plate 1. A hot pressing block 4 is fixedly connected to the piston rod of the hydraulic cylinder two 41. An electric heating wire 42 for heating and curing the foam box is integrated inside the hot pressing block 4. A mold two 5 is slidably connected to the guide rods 2. The mold two 5 is an annular frame with an open interior. The hot pressing block 4 slides through the mold two 5 and fits against the inner wall of the ring. Push blocks 43 protruding outward are fixedly connected to both outer walls of the hot pressing block 4. The push blocks 43 are used to push the mold two 5 so that the hot pressing block 4 can drive the mold two 5 to press against the mold one 3 for solidification. A sealing member 6 is provided on the frame of the mold two 5. The sealing member 6 includes a sealing frame 61 slidably embedded in the mold two 5 through a connecting rod 611. The sealing frame 61 faces the mold one 3. The sealing frame 61 is used to seal the pressing surface between the mold one 3 and the mold two 5. A connecting plate 62 is fixedly connected to the end of the connecting rod 611 of the sealing frame 61. An elastic member 63 is provided between the connecting plate 62 and the mold two 5. A driving mechanism 8 for driving the mold plate 32 to slide is provided on the mold one 3. A drying mechanism 9 for drying the solidified foam box is also provided on the mold one 3. The hydraulic cylinder two 41 drives the hot pressing block 4 to press into the forming cavity of the mold one 3. The push blocks 43 of the hot pressing block 4 press the mold two 5 to move synchronously, so that the sealing member 6 is tightly pressed and sealed between the mold one 3 and the mold two 5. After connecting the feeding joint 31 to the feeding pipe, matured EPS raw materials are filled into the forming cavity between the mold one 3 and the mold two 5. Then, the EPS raw materials in the forming cavity are hot pressed by the hot pressing block 4, so that the EPS raw materials expand and melt into a thermoplastic state. After the hot pressing is completed, cooling water is injected into the solidified foam box in the forming cavity through the cooling valve one 33. The cooled water is discharged by the cooling valve two 331. Then, the mold plate 32 is driven by the driving mechanism 8 to expand outward and separate from the cooled foam box, so that a drying gap is vacated in the forming cavity. Finally, the foam box is dried by the drying mechanism 9. Finally, the hot pressing block 4 withdraws from the forming cavity of the mold one 3.

[0029] As Figure 2 and Figure 3As shown in the figure, electromagnets 71 are fixedly installed at both the top and bottom of one side of mold 3 close to mold 5, and electromagnets 72 are also fixedly installed at both the top and bottom of one side of mold 5 close to mold 3. The electromagnets 71 and 72 are adapted to each other and have opposite magnetic poles when energized. During the process of the hot pressing block 4 pushing mold 5 and mold 3 for pressing, the sealing frame 61 will first come into contact with mold 3, and when mold 5 and mold 3 complete the pressing, the sealing frame 61 will slide and be embedded into the interior of mold 5, stretching the elastic member 63 between the connecting plate 62 and mold 5, so that the sealing frame 61 can tightly seal the gap between mold 5 and mold 3. After the hot pressing and cooling of the foam box are completed, the electromagnets 71 and 72 are energized to attract each other. After the hot pressing block 4 retreats a certain distance in the forming cavity of mold 3, the attraction between the electromagnets 71 and 72 enables mold 5 and the sealing frame 61 to always adhere to mold 3 to maintain the seal, leaving the pressing space for solidification free for the hot pressing block 4 to dry the foam box.

[0030] When using this mold for the solidification production of foam packaging boxes, first activate the hydraulic cylinder 30 to drive mold 3 to set the pressing position on the guide rod 2, and then activate the hydraulic cylinder 41. The hydraulic cylinder 41 drives the hot pressing block 4 to move towards mold 3. The moving hot pressing block 4 presses on mold 5 through the push block 43, thereby driving mold 5 to move synchronously along the guide rod 2 towards mold 3. When the sealing frame 61 at the edge of mold 5 gradually adheres to the contact surface of mold 3 with the pressing action, the sealing frame 61 gradually slides and is embedded into the interior of mold 5, stretching the elastic member 63 between mold 5 and the connecting plate 62 to ensure that mold 3 and mold 5 can be tightly sealed. When mold 5 also contacts and adheres to mold 3, the electromagnets 71 and 72 are energized to generate a magnetic field with opposite poles, further enhancing the pressing stability of mold 3 and mold 5 through magnetic attraction, preventing gap leakage caused by material expansion during subsequent high-temperature and high-pressure operations, and ensuring the tightness of the forming cavity between mold 3 and mold 5. Subsequently, the closed forming cavity inside the mold is connected to the external raw material conveying system through the feeding joint 31, and the matured EPS particles are injected into the sealed forming cavity through the feeding joint 31, so that the forming cavity is evenly filled with raw materials in a closed environment. Then, it enters the hot pressing process. The heating wire 42 integrated inside the hot pressing block 4 starts to heat up, and at the same time, continuous pressure is applied to the raw materials, prompting the EPS particles to expand and melt under high temperature and high pressure, gradually adhering to the inner wall of the mold to form a box structure, ensuring that the material is fully shaped. After the hot pressing is completed, it enters the cooling and shaping stage. First, the hydraulic cylinder 41 drives the hot pressing block 4 to reset and retreat a certain distance from the shaping cavity of mold 3 and maintain the sealed state of the shaping cavity, leaving a certain cooling gap in the shaping cavity. Then, open the cooling valve 33 and inject circulating cooling water into the shaping cavity. The cooling water flows evenly along the internal flow channels of the mold, quickly taking away the heat from the just hot-pressed foam box, and then discharging from the opened cooling valve 331.

[0031] Embodiment 2: On the basis of Embodiment 1, as Figure 1 and Figure 5 shown, the driving mechanism 8 includes a hydraulic push rod 81, a connecting pipe 82, a hydraulic pump 83 and a suction pipe 84. Four sides of the inner wall of the cavity of the first mold 3 are fixedly embedded with hydraulic push rods 81. The cylinders of the hydraulic push rods 81 are all filled with hydraulic oil. The push rods of the hydraulic push rods 81 pass through the first mold 3 and are connected to the corresponding mold plates 32 on the same side. The cylinders of the hydraulic push rods 81 are connected into a whole through the connecting pipe 82. A hydraulic pump 83 is fixedly installed on the outer wall of the first mold 3. The hydraulic pump 83 is connected to the cylinder of one of the hydraulic push rods 81 through the suction pipe 84. The hydraulic pump 83 is used to control the synchronous expansion and contraction of the multiple hydraulic push rods 81. The hydraulic pump 83 can synchronously suck the hydraulic oil in the cylinders of the hydraulic push rods 81 by using the suction pipe 84 in cooperation with the connecting pipe 82. The hydraulic push rods 81 synchronously drive the corresponding mold plates 32 to move in the sliding cavity 321, so that the mold plates 32 can be separated from the foam boxes formed by pressing, facilitating the subsequent efficient drying of the foam boxes.

[0032] As Figure 1 , Figure 2 and Figure 6 shown, the drying mechanism 9 includes a heater 91, a drying air pump 92 and an air delivery pipe 93. The heater 91 is fixedly assembled on the top outer wall of the first mold 3. The drying air pump 92 is also fixedly installed on the top outer wall of the first mold 3. The air inlet of the drying air pump 92 is communicated with the heater 91 through a pipeline. The air delivery pipe 93 is fixedly embedded in the frame of the first mold 3. The air delivery pipe 93 and the air outlet pipe are fixedly embedded on the upper mold plate 32. The air outlet of the drying air pump 92 is communicated with the air delivery pipe 93 through a pipeline. The drying air pump 92 sucks the air heated by the heater 91 into the air delivery pipe 93, so that the air delivery pipe 93 can input high-temperature gas into the forming cavity of the first mold 3 to dehumidify and dry the cooled foam packaging box; An exhaust valve 94 is installed on the top of the frame of the first mold 3. The exhaust valve 94 is a one-way valve that conducts unidirectionally from the inside of the first mold 3 to the outside. The exhaust valve 94 is used to synchronously discharge the drying gas injected into the inside of the first mold 3 by the drying air pump 92, so as to balance the air pressure in the forming cavity of the first mold 3 and the outside.

[0033] As Figure 7 and Figure 8As shown, a plurality of arc cavities 322 are formed in the plate body of the bottom die plate 32 of the first die 3. A through port is provided at the top of the arc cavity 322. A switching member 10 is provided in the arc cavity 322. The switching member 10 is used to open or close the through port of the arc cavity 322 on the die plate 32. A high-pressure air pump 11 is fixedly installed on the outer wall side of the first die 3. The high-pressure air pump 11 is connected to the switching member 10 through a hose 12. The switching member 10 includes an arc frame 101, a nozzle 102, and a micro motor 103. Arc frames 101 are rotatably installed in the arc cavities 322 of the bottom die plate 32 of the first die 3. The arc surface of the arc frame 101 is in sealed sliding contact with the arc cavity 322. A nozzle 102 is fixedly provided inside the arc frame 101. The air outlet of the nozzle 102 passes through the frame body of the arc frame 101. The nozzle 102 is connected to the corresponding high-pressure air pump 11 through a hose 12. A micro motor 103 is fixedly provided in the arc cavity 322 of the die plate 32. The output shaft of the micro motor 103 is connected to the arc frame 101. When the motor drives the corresponding nozzle 102 to align with the through port of the arc cavity 322, the high-pressure air pump 11 is used to supply air to each corresponding nozzle 102 through the hose 12, so that the solidified foam box placed on the bottom die plate 32 of the first die 3 is blown up, enabling the drying mechanism 9 to dry the bottom of the foam box, further improving the drying efficiency of the solidified foam box and shortening the production time of the solidified product.

[0034] As Figure 1 and Figure 9 As shown, an ejector member 13 for demolding is provided at the support plate 1 where the first hydraulic cylinder 30 is located. The ejector member 13 includes an ejector frame 131 and a top plate 132. The ejector frame 131 is fixedly connected to the support plate 1 where the first hydraulic cylinder 30 is located. The ejector frame 131 passes through the frame body of the first die 3 through a push rod. The end of the push rod of the ejector frame 131 is fixedly provided with a top plate 132. The top plate 132 is embedded and flush with the inner wall of the mold cavity of the first die 3. During the process of separating the first die 3 and the second die 5 driven by the first hydraulic cylinder 30 after the foam box is hot-pressed, cooled, and dried, the top plate 132 of the ejector frame 131 can extrude the solidified foam box from the forming cavity, achieving the effect of automatic demolding.

[0035] After the foam box is completely cured, the hydraulic pump 83 is activated. The hydraulic pump 83 synchronously extracts a certain amount of hydraulic oil from the cylinder block of each hydraulic push rod 81 through the suction pipe 84 and the connecting pipe 82, so that the hydraulic push rod 81 can control the four-side die plates 32 in the die 1-3 to expand outward along the sliding cavity 321 and separate from the surface of the cured foam box, forming a uniform gap space to provide an air flow channel for the subsequent drying stage. At this time, the foam box falls onto the bottom die plate 32 under its own gravity. Then, the hot air heated by the heater 91 is conveyed into the air delivery pipe 93 by the drying air pump 92, and hot air is introduced into the forming cavity through the air delivery pipe 93. Subsequently, the micro motor 103 is activated. The micro motor 103 drives the arc frame 101 to rotate in the arc cavity 322 of the die plate 32, so that the air nozzles 102 inside the arc frame 101 are aligned with the openings at the exits of the arc cavity 322, and the multiple openings on the bottom die plate 32 change from the closed state to the open state. Then, the high-pressure air pump 11 is activated. The high-pressure air pump 11 delivers air to the corresponding air nozzles 102 through the hose 12. Thus, air flows are ejected from the multiple air nozzles 102 on the die plate 32 to the bottom surface of the foam box, and the foam box is slightly lifted from the bottom die plate 32 by the air flows, so that the bottom of the foam box is completely exposed to the hot air environment, eliminating the drying dead corners and achieving the effect of all-round drying, realizing the rapid drying of the foam box. After the foam box is dried, the die 1-3 moves backward synchronously along the guide rod 2 under the traction of the hydraulic cylinder 1-30. At this time, the top plate 132 on the ejector frame 131 is smoothly pushed out from the forming cavity inside the die 1-3, and the dried foam box is completely pushed out of the cavity and demolded. Subsequently, the hydraulic cylinder 1-30 drives the die 1-3 to reset to the pressing position again, preparing for the next production cycle. Thus, the integration of the scattered hot pressing, cooling, drying and demolding processes in the traditional process into a single die system is realized, significantly shortening the production cycle.

[0036] Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the present disclosure that various changes or modifications can be made to the present invention without departing from the principle and spirit scope defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit the present invention, and the scope of protection is defined by the content of the claims.

Claims

1. A rapid solidification mold for producing a foam packaging box, comprising a support plate (1) and a guide rod (2), wherein the guide rod (2) is fixedly connected between two support plates (1), a mold (3) is slidably connected to the guide rod (2), a hydraulic cylinder (30) is fixedly provided on one side of the support plate (1), a piston rod of the hydraulic cylinder (30) is connected to the mold (3), and a feeding joint (31) is provided on the top of the mold (3); Its characteristics are: It also includes a mold plate (32), the inner wall of the mold cavity of the mold one (3) is provided with sliding cavities (321) on all four sides, the mold plate (32) is slidably mounted in the sliding cavity (321) of the mold one (3), the cavity surrounded by the mold plate (32) is a molding cavity, a cooling valve one (33) is provided on the top of the mold one (3), a cooling valve two (331) is provided on the bottom of the mold one (3), a hydraulic cylinder two (41) is fixedly provided on the other side of the support plate (1), a hot pressing block (4) is fixedly connected to the piston rod of the hydraulic cylinder two (41), and the hot pressing block (4) is fixedly connected to the piston rod of the hot pressing block (4). The pressing block (4) is internally integrated with an electric heating wire (42); the guide rod (2) is slidably connected to the mold 2 (5); the hot pressing block (4) slides through the mold 2 (5); both sides of the hot pressing block (4) are fixedly connected with external convex push blocks (43); the push blocks (43) are used to push the mold 2 (5); a sealing member (6) is provided on the frame of the mold 2 (5); a driving mechanism (8) for driving the mold plate (32) to slide is provided on the mold 1 (3); and a drying mechanism (9) for drying the solid foam box is also provided on the mold 1 (3).

2. A rapid solidification mold for producing a foam packaging box according to claim 1, characterized in that: The sealing member (6) comprises a sealing frame (61) which is slidably embedded in the second mold (5) via a connecting rod (611); a connecting plate (62) is fixedly connected to the end of the connecting rod (611) of the sealing frame (61); and an elastic member (63) is provided between the connecting plate (62) and the second mold (5).

3. A rapid solidification mold for producing a foam packaging box according to claim 2, characterized in that: Electromagnet 1 (71) is fixedly provided at the top and bottom of one side of the mold 1 (3) close to the mold 2 (5), and electromagnet 2 (72) is fixedly provided at the top and bottom of one side of the mold 2 (5) close to the mold 1 (3). The electromagnet 1 (71) and the electromagnet 2 (72) are matched and have different magnetic properties when energized.

4. A rapid solidification mold for producing a foam packaging box according to claim 3, characterized in that: The driving mechanism (8) comprises a hydraulic push rod (81), a connecting pipe (82), a hydraulic pump (83) and a suction pipe (84). The four sides of the inner wall of the mold cavity of the mold one (3) are fixedly embedded with hydraulic push rods (81). Hydraulic oil is stored in the cylinder bodies of the hydraulic push rods (81). The push rods of the hydraulic push rods (81) pass through the mold one (3) and are connected to the corresponding mold plate (32) on the same side. The cylinder bodies of the hydraulic push rods (81) are connected to form a whole through the connecting pipe (82). A hydraulic pump (83) is fixedly installed on the outer wall of the mold one (3). The hydraulic pump (83) is connected to the cylinder body of one of the hydraulic push rods (81) through the suction pipe (84). The hydraulic pump (83) is used to control multiple hydraulic push rods (81) to perform synchronous extension and retraction.

5. A rapid solidification mold for producing a foam packaging box according to claim 4, characterized in that: The drying mechanism (9) comprises a heater (91), a drying air pump (92) and an air delivery pipe (93); the heater (91) is fixedly mounted on the top outer wall of the mold one (3); the drying air pump (92) is also fixedly mounted on the top outer wall of the mold one (3); the air inlet of the drying air pump (92) is connected to the heater (91) through a pipeline; the air delivery pipe (93) is embedded in the frame of the mold one (3); the air delivery pipe (93) and the air outlet are fixedly embedded in the upper mold plate (32); the air outlet of the drying air pump (92) is connected to the air delivery pipe (93) through a pipeline.

6. A rapid solidification mold for producing a foam packaging box according to claim 5, characterized in that: An exhaust valve (94) is installed on the top of the frame of the mold one (3), and the exhaust valve (94) is a one-way valve that conducts one-way from the inside of the mold one (3) to the outside.

7. A rapid solidification mold for producing a foam packaging box according to claim 6, characterized in that: A plurality of arc cavities (322) are provided in the plate body of the bottom mold plate (32) of the mold one (3); a through opening is provided at the top of the arc cavity (322); a switching member (10) is provided in the arc cavity (322); the switching member (10) is used to open or close the through opening of the arc cavity (322) on the mold plate (32); a high-pressure air pump (11) is fixedly mounted on the side wall of the outer wall of the mold one (3); the high-pressure air pump (11) is connected to the switching member (10) via a hose (12).

8. A rapid solidification mold for producing a foam packaging box according to claim 7, characterized in that: The switching member (10) comprises an arc frame (101), an air nozzle (102) and a micro motor (103); the arc frame (101) is rotatably mounted in the arc cavity (322) of the bottom mold plate (32) in the mold one (3); the arc surface of the arc frame (101) and the arc cavity (322) are in closed sliding contact; the air nozzle (102) is fixedly arranged inside the arc frame (101); the air outlet of the air nozzle (102) passes through the frame body of the arc frame (101); the air nozzle (102) and the corresponding high-pressure air pump (11) are connected via a hose (12); the micro motor (103) is fixedly arranged in the arc cavity (322) of the mold plate (32); the output shaft of the micro motor (103) is connected to the arc frame (101).

9. A rapid solidification mold for producing a foam packaging box according to claim 8, characterized in that: An ejector (13) for demoulding is provided at the support plate (1) where the hydraulic cylinder (30) is located. The ejector (13) comprises an ejector frame (131) and a top plate (132). The ejector frame (131) is fixedly connected to the support plate (1) where the hydraulic cylinder (30) is located. The ejector frame (131) penetrates into the frame of the mold (3) through an ejector rod. The end of the ejector rod of the ejector frame (131) is fixedly provided with a top plate (132). The top plate (132) is embedded in and flush with the inner wall of the mold cavity of the mold (3).

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