Physical foaming injection molding device

Abstract

The invention relates to the technical field of foaming injection molding, in particular to a physical foaming injection molding device which comprises an operation table, a material conveying pipe is arranged at the upper end of the operation table, a feeding port is fixedly connected to the upper end of the material conveying pipe, an outer cover is arranged on the outer side of the material conveying pipe, a proportioning machine is fixedly connected to one side of the feeding port, and an auger piece A is arranged in the material conveying pipe; and one end of the material conveying pipe is connected with a movable plate A, and the outer side of the movable plate A is fixedly connected with a connecting block. When raw materials are conveyed, the lower end of the mold is subjected to rapid heat conduction through the water tank, and the situation that the distance between the lower end of the mold and the operation table is short, and consequently heat dissipation of all parts of the mold is uneven during injection molding is prevented; the cooling speeds of all parts of the plastic product are different, so that the shrinkage differences of all the parts are inconsistent, stress is generated in the product due to the shrinkage differences, the product is warped and deformed, and the designed dimensional precision requirement cannot be met.

Description

Technical Field

[0001] The present invention relates to the technical field of foaming injection molding, and specifically relates to a physical foaming injection molding device. Background Art

[0002] Plastic products have been widely used in various fields of modern society due to their excellent plasticity, corrosion resistance, insulation and other characteristics. From tableware and toys in daily life, to mechanical parts and electronic device casings in industrial production, to pipes and plates in the construction field, plastic products are everywhere.

[0003] When the workload of traditional injection molding devices is too large, the feeding port may be blocked due to too fast feeding, which affects the smooth feeding and reduces the production efficiency. Moreover, the distance between the lower end of the injection molding tank and the lower end of the operating table is relatively close. During injection molding, the temperature at the lower end of the mold is too high to dissipate quickly, resulting in different cooling speeds of each part, and thus different shrinkage differences of each part, affecting the quality of the product. Summary of the Invention

[0004] The present invention quickly conducts heat to the lower end of the mold through a water tank when conveying raw materials, preventing uneven heat dissipation of each part of the mold during injection molding due to the short distance between the lower end of the mold and the operating table, resulting in different cooling speeds of each part of the plastic product, and thus different shrinkage differences of each part. This shrinkage difference will cause stress inside the product, and then cause the product to warp and deform, unable to meet the designed dimensional accuracy requirements.

[0005] To achieve the above object, the present invention provides the following technical solution: A physical foaming injection molding device, including an operating table, a feeding pipe is arranged at the upper end of the operating table, a feeding port is fixedly connected to the upper end of the feeding pipe, an outer cover is arranged outside the feeding pipe, a proportioning machine is fixedly connected to one side of the feeding port, a screw blade A is arranged inside the feeding pipe, one end of the feeding pipe is connected to a movable plate A, a connecting block is fixedly connected to the outside of the movable plate A, a spring rod is fixedly connected to one end of the connecting block, nitrogen needles are arranged on both sides of the outer cover, one end of the feeding pipe far from the movable plate A is connected to a movable plate B, a toothed ring is fixedly connected to the outside of the movable plate B, a gear is arranged on one side of the toothed ring, a connecting rod is fixedly connected to one end of the gear, a conveying pipe is arranged outside the connecting rod, a plasticizing tank is arranged at one end of the conveying pipe, a water tank is connected inside the plasticizing tank, baffles are arranged on both sides of the water tank, and a cylinder is arranged at the lower end of the baffle.

[0006] Preferably, a bracket is fixedly connected to the lower end of the material conveying pipe, and the material conveying pipe is fixed to the upper end of the operating table through the bracket. A fixing table is provided at one end of the material conveying pipe, and the outer cover is fixedly connected to the fixing table. The feeding port is fixedly connected to the upper end of the operating table, and the feeding port penetrates through the material conveying pipe and extends to the inside. A pipe is fixedly connected to one side of the proportioning machine, and the proportioning machine is connected to the inside of the material conveying pipe through the pipe. A control cabinet is provided on one side of the feeding port, and the control cabinet is fixedly connected to the operating table.

[0007] Preferably, a motor is provided at one end of the material conveying pipe. A connecting shaft is rotatably connected to the output end of the motor. A screw blade A is fixedly connected to the outside of the connecting shaft. A movable plate A is fixedly connected to the outside of the connecting shaft. The movable plate A is movably connected to one end of the material conveying pipe. One end of a spring rod is fixedly connected to a knocking rod, and the knocking rod and the feeding port are in the same plane.

[0008] Preferably, two groups of nitrogen needles are fixedly connected to the outside of the outer cover. One end of each of the two groups of nitrogen needles is fixedly connected to the fixing table, and one end of the nitrogen needle close to the fixing table penetrates through the outer cover and extends into the material conveying pipe. One end of each of the two groups of nitrogen needles is fixedly connected to an air inlet pipe A, and one end of the air inlet pipe A is fixedly connected to a control machine.

[0009] Preferably, the movable plate B is movably connected to one end of the material conveying pipe. A toothed ring is fixedly connected to the outside of the movable plate B. A gear is provided on one side of the toothed ring. The gear is fixed by being connected to the fixing table, and the toothed ring and the gear are meshed with each other.

[0010] Preferably, a connecting rod is fixedly connected to one end of the gear. A screw blade B is fixedly connected to the outside of the connecting rod. A conveying pipe is connected to the outside of the screw blade B. One end of the conveying pipe is fixedly connected to a water tank. Two groups of connecting pipes are provided on the outside of the conveying pipe. One group of the two groups of connecting pipes is fixedly connected to the outside of the conveying pipe, and the other group is fixedly connected to one end of the water tank. Both groups of connecting pipes penetrate through the operating table and extend to the lower end. The lower ends of the two groups of connecting pipes are fixedly connected to a water storage tank, and the water storage tank is fixedly connected to the lower end of the operating table.

[0011] Preferably, a pulley A is fixedly connected to the outside of the connecting rod. A belt is sleeved inside the pulley A. The belt penetrates through the operating table and extends to the lower end and is sleeved with a pulley B. One end of the pulley B is connected to a fixing rod, and the fixing rod is fixedly connected to the lower end of the operating table.

[0012] Preferably, a reciprocating lead screw is fixedly connected to one end of the pulley B. A piston is provided on the outside of the reciprocating lead screw. The piston is connected to the reciprocating lead screw by a ball screw nut pair. An air inlet pipe B is located on the outside of the piston. A fixing ring is fixedly connected to the outside of the air inlet pipe B, and the fixing ring is fixedly connected to the water storage tank.

[0013] Preferably, one end of the air inlet pipe B is fixedly connected with a hose, one end of the hose is connected with two cylinders, the cylinders are located inside the operating table, a push rod is connected inside the cylinders, and one end of the push rod is fixedly connected with a fixed block, and the fixed block is fixedly connected with the baffle.

[0014] Preferably, one end of the movable plate B is movably connected with an injection molding pipe, one end of the injection molding pipe is fixedly connected with a plastic groove, and the injection molding pipe is located at the center of the plastic groove. Two sliding grooves are opened on both sides of the plastic groove, and baffles are connected inside the two sliding grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. When the present invention conveys raw materials, the motor drives the connecting shaft to rotate, so that the connecting shaft will drive the auger blade A to rotate synchronously to convey the raw materials. When the connecting shaft rotates, since the movable plate A is fixedly connected with the connecting shaft, the movable plate A will be driven to rotate synchronously when the connecting shaft rotates. When the movable plate A rotates, the connecting block will be driven to move synchronously, so that the knocking rod will contact the feed inlet, and the knocking rod will knock on the feed inlet to generate vibration, preventing the feed inlet from being blocked due to too fast feeding. After the knocking rod contacts the feed inlet, as the movable plate A gradually moves, the knocking rod will flip through the spring block, so as to knock on the feed inlet at regular intervals, thus ensuring the smoothness of the raw material entry.

[0017] 2. When the gear rotates in the present invention, it will drive the connecting rod to rotate synchronously, so that the connecting rod will drive the auger blade B to rotate synchronously. When the auger blade B rotates, it will convey water. When conveying water, the connecting pipe will continuously supply water into the inside of the conveying pipe. At the same time, since the conveying pipe is connected with the water tank, a water cycle will be formed inside the water tank when the conveying pipe conveys water, so that the lower end of the mold will be quickly heat-conducted during mold injection molding, preventing the distance between the lower end of the mold and the operating table from being too short, resulting in uneven heat dissipation of each part of the mold during injection molding, so that the cooling speeds of each part of the plastic product are different, and thus the shrinkage differences of each part are inconsistent. This shrinkage difference will cause stress inside the product, and further cause the product to warp and deform, unable to meet the design dimensional accuracy requirements.

[0018] 3. When the push rod is pushed out in the present invention, since the push rod is connected with the baffle through the fixed block, it will drive the two baffles to move synchronously to block the plastic groove, thus preventing the high-temperature gas jet from injuring the staff during injection molding. At the same time, the baffle serves as a physical protection barrier, which can prevent the operator from accidentally contacting the high-temperature melt or moving parts, ensuring the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0020] Figure 2 The second overall structural schematic diagram of the present invention;

[0021] Figure 3 The third overall structural schematic diagram of the present invention;

[0022] Figure 4 The sectional view of the material conveying pipe structure of the present invention;

[0023] Figure 5 The partial structural diagram of the present invention;

[0024] Figure 6 The first internal view of the material conveying pipe of the present invention;

[0025] Figure 7 The second internal view of the material conveying pipe of the present invention;

[0026] Figure 8 The first partial sectional view of the present invention;

[0027] Figure 9 The second partial sectional view of the present invention;

[0028] Figure 10 The enlarged view of the structure at position A of the present invention.

[0029] In the figure: 1, operating platform; 2, feeding port; 3, material conveying pipe; 4, outer cover; 5, proportioning machine; 6, motor; 7, connecting shaft; 8, auger blade A; 9, movable plate A; 10, connecting block; 11, spring rod; 12, knocking rod; 13, nitrogen needle; 14, control cabinet; 15, air inlet pipe A; 16, control machine; 17, movable plate B; 18, gear ring; 19, gear; 20, connecting rod; 21, auger blade B; 22, conveying pipe; 23, connecting pipe; 24, water tank; 25, pulley A; 26, belt; 27, pulley B; 28, injection pipe; 29, plastic groove; 30, baffle; 31, water storage tank; 32, reciprocating lead screw; 33, air inlet pipe B; 34, piston; 35, hose; 36, cylinder; 37, push rod; 38, fixed block. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] The present invention provides a physical foaming injection molding device, including an operation table 1. At the upper end of the operation table 1, there is a feeding pipe 3. At the upper end of the feeding pipe 3, there is a feeding port 2 fixedly connected. Outside the feeding pipe 3, there is an outer cover 4. On one side of the feeding port 2, there is a proportioning machine 5 fixedly connected. Inside the feeding pipe 3, there is a screw blade A8. One end of the feeding pipe 3 is connected to a movable plate A9. Outside the movable plate A9, there is a connecting block 10 fixedly connected. One end of the connecting block 10 is fixedly connected to a spring rod 11. On both sides of the outer cover 4, there are nitrogen needles 13. The end of the feeding pipe 3 far from the movable plate A9 is connected to a movable plate B17. Outside the movable plate B17, there is a gear ring 18 fixedly connected. On one side of the gear ring 18, there is a gear 19. One end of the gear 19 is fixedly connected to a connecting rod 20. Outside the connecting rod 20, there is a conveying pipe 22. At one end of the conveying pipe 22, there is a plasticizing groove 29. Inside the plasticizing groove 29, there is a water tank 24 connected. On both sides of the water tank 24, there are baffles 30. At the lower end of the baffles 30, there is a cylinder 36.

[0032] In an alternative embodiment, a bracket is fixedly connected to the lower end of the feeding pipe 3, and the feeding pipe 3 is fixed to the upper end of the operation table 1 through the bracket. At one end of the feeding pipe 3, there is a fixed table, and the outer cover 4 is fixedly connected to the fixed table. The feeding port 2 is fixedly connected to the upper end of the operation table 1, and the feeding port 2 penetrates the feeding pipe 3 and extends to the inside. On one side of the proportioning machine 5, there is a pipeline fixedly connected, and the proportioning machine 5 is connected to the inside of the feeding pipe 3 through the pipeline. On one side of the feeding port 2, there is a control cabinet 14, and the control cabinet 14 is fixedly connected to the operation table 1. One end of the proportioning machine 5 is connected to a foaming agent storage device. When using the device, raw materials are added into the feeding pipe 3 through the feeding port 2, and while adding the raw materials, a certain proportion of foaming agent is synchronously added into the feeding pipe 3 through the proportioning machine 5.

[0033] In an alternative embodiment, a motor 6 is provided at one end of the feeding pipe 3. The output end of the motor 6 is rotationally connected to a connecting shaft 7. Outside the connecting shaft 7, there is a screw blade A8 fixedly connected. Outside the connecting shaft 7, there is a movable plate A9 fixedly connected. The movable plate A9 is movably connected to one end of the feeding pipe 3. One end of the spring rod 11 is fixedly connected to a knocking rod 12. The knocking rod 12 and the feeding port 2 are in the same plane. When conveying raw materials, the motor 6 drives the connecting shaft 7 to rotate, so that the connecting shaft 7 will drive the screw blade A8 to rotate synchronously to convey the raw materials. When the connecting shaft 7 rotates, because the movable plate A9 is fixedly connected to the connecting shaft 7, the movable plate A9 will be driven to rotate synchronously when the connecting shaft 7 rotates. When the movable plate A9 rotates, it will drive the connecting block 10 to move synchronously, so that the knocking rod 12 will contact the feeding port 2, causing the knocking rod 12 to knock on the feeding port 2 to generate vibration, preventing the feeding port 2 from being blocked due to too fast feeding. After the knocking rod 12 contacts the feeding port 2, as the movable plate A9 gradually moves, the knocking rod 12 will flip through the spring rod 11, so as to knock on the feeding port 2 at regular intervals, thus ensuring the smooth flow of the raw materials entering.

[0034] In an alternative embodiment, two sets of nitrogen needles 13 are fixedly connected to the outside of the outer cover 4. One end of the two sets of nitrogen needles 13 is fixedly connected to the fixed table, and one end of the nitrogen needle 13 close to the fixed table penetrates through the outer cover 4 and the feeding pipe 3 and extends into the feeding pipe 3. One end of each of the two sets of nitrogen needles 13 is fixedly connected to an air inlet pipe A15. One end of the air inlet pipe A15 is fixedly connected to a control machine 16, and the control machine 16 is connected to a nitrogen tank. During feeding, the control machine 16 will convey nitrogen into the nitrogen needle 13 through the air inlet pipe A15, so that nitrogen enters the feeding pipe 3 through the nitrogen needle 13, thereby increasing the foaming ability, and the nitrogen dissolved in the plastic melt can weaken the intermolecular force and reduce the viscosity.

[0035] In an alternative embodiment, the movable plate B17 is movably connected to one end of the feeding pipe 3. A gear ring 18 is fixedly connected to the outside of the movable plate B17. A gear 19 is arranged on one side of the gear ring 18. The gear 19 is fixed by being connected to the fixed table. The gear ring 18 meshes with the gear 19. The movable plate B17 is fixedly connected to the connecting shaft 7. As described above, when the connecting shaft 7 rotates, it will drive the movable plate B17 to rotate synchronously. When the movable plate B17 rotates, it will synchronously drive the outer gear 19 to rotate synchronously through the outer gear ring 18.

[0036] In an alternative embodiment, one end of the gear 19 is fixedly connected to a connecting rod 20. A screw blade B21 is fixedly connected to the outside of the connecting rod 20. The outside of the screw blade B21 is connected to a conveying pipe 22. One end of the conveying pipe 22 is fixedly connected to the water tank 24. Two connecting pipes 23 are arranged on the outside of the conveying pipe 22. One group of the two connecting pipes 23 is fixedly connected to the outside of the conveying pipe 22, and the other group is fixedly connected to one end of the water tank 24. And both groups of connecting pipes 23 penetrate through the operating table 1 and extend to the lower end. The lower ends of the two groups of connecting pipes 23 are fixedly connected to the water storage tank 31. The water storage tank 31 is fixedly connected to the lower end of the operating table 1. The water tank 24 is made of a heat-conducting material. When the gear 19 rotates, it will drive the connecting rod 20 to rotate synchronously, so that the connecting rod 20 will synchronously drive the screw blade B21 to rotate. When the screw blade B21 rotates, it will convey water. When conveying water, the connecting pipe 23 will continuously supply water into the conveying pipe 22. At the same time, because the conveying pipe 22 is connected to the water tank 24, a water circulation will be formed in the water tank 24 when the conveying pipe 22 conveys water. Thus, when the mold is injection-molded, the lower end of the mold will be quickly heat-conducted, preventing the distance between the lower end of the mold and the operating table 1 from being too short, resulting in uneven heat dissipation of each part of the mold during injection molding, so that the cooling speeds of each part of the plastic product are different, and thus the shrinkage differences of each part are inconsistent. This shrinkage difference will cause stress in the product, and further cause the product to warp and deform, unable to meet the design dimensional accuracy requirements.

[0037] In an alternative embodiment, a pulley A25 is fixedly connected to the outside of the connecting rod 20. A belt 26 is sleeved inside the pulley A25. The belt 26 passes through the operating table 1 and extends to the lower end to be sleeved with a pulley B27. One end of the pulley B27 is connected with a fixed rod, and the fixed rod is fixedly connected to the lower end of the operating table 1. When the connecting rod 20 rotates, it will drive the pulley A25 to rotate synchronously. When the pulley A25 rotates, it will drive the pulley B27 to rotate synchronously through the upper belt 26.

[0038] In an alternative embodiment, a reciprocating lead screw 32 is fixedly connected to one end of the pulley B27. A piston 34 is arranged outside the reciprocating lead screw 32. The piston 34 is connected with the reciprocating lead screw 32 by a ball screw pair. The air inlet pipe B33 is located outside the piston 34. A fixing ring is fixedly connected to the outside of the air inlet pipe B33, and the fixing ring is fixedly connected to the water storage tank 31. When the pulley B27 rotates, it will drive the reciprocating lead screw 32 to rotate synchronously. When the reciprocating lead screw 32 rotates, it will drive the piston 34 to move, so as to continuously compress the air pressure and transport it to the rear end.

[0039] In an alternative embodiment, one end of the air inlet pipe B33 is fixedly connected with a hose 35. One end of the hose 35 is connected with two cylinders 36. The cylinders 36 are located inside the operating table 1. A push rod 37 is connected inside the cylinders 36. One end of the push rod 37 is fixedly connected with a fixing block 38, and the fixing block 38 is fixedly connected with the baffle 30. The hose 35 will transport the air pressure into the cylinders 36. Therefore, when the air pressure inside the cylinders 36 increases, it will push the push rod 37 out.

[0040] In an alternative embodiment, one end of the movable plate B17 is movably connected with an injection pipe 28. One end of the injection pipe 28 is fixedly connected with a plasticizing groove 29, and the injection pipe 28 is located at the center of the plasticizing groove 29. Two sliding grooves are formed on both sides of the plasticizing groove 29. Two baffles 30 are connected inside the two sliding grooves. When the push rod 37 is pushed out, since the push rod 37 and the baffle 30 are connected through the fixing block 38, it will drive the two baffles 30 to move synchronously to block the plasticizing groove 29, so as to prevent the high-temperature gas from spraying and causing harm to the staff during injection molding. At the same time, the baffle 30 serves as a physical protection barrier to prevent the operator from accidentally contacting the high-temperature melt or moving parts and ensuring the personal safety of the operator.

[0041] Working principle: When using the equipment, raw materials are added into the feeding pipe 3 through the feeding port 2. While adding the raw materials, a certain proportion of foaming agent is synchronously added into the feeding pipe 3 by the proportioning machine 5. While feeding, the controller 16 will transport nitrogen into the nitrogen needle 13 through the air inlet pipe A15. Therefore, nitrogen enters the feeding pipe 3 through the nitrogen needle 13, so as to increase the foaming ability. And nitrogen dissolved in the plastic melt can weaken the intermolecular force and reduce the viscosity.

[0042] When transporting raw materials, the connecting shaft 7 is driven to rotate by the motor 6. Thus, the auger blade A8 will be driven by the connecting shaft 7 to rotate synchronously to transport the raw materials. When the connecting shaft 7 rotates, since the movable plate A9 is fixedly connected to the connecting shaft 7, the movable plate A9 will be driven to rotate synchronously when the connecting shaft 7 rotates. When the movable plate A9 rotates, it will drive the connecting block 10 to move synchronously. Thus, the knocking rod 12 will contact the feed inlet 2, causing the knocking rod 12 to knock on the feed inlet 2 to generate vibration. After the knocking rod 12 contacts the feed inlet 2, as the movable plate A9 gradually moves, the knocking rod 12 will flip through the spring rod 11. Thus, the feed inlet 2 is knocked every once in a while.

[0043] When the connecting shaft 7 rotates, it will drive the movable plate B17 to rotate synchronously. When the movable plate B17 rotates, it will synchronously drive the outer gear 19 outside through the outer gear ring 18 to rotate synchronously. When the gear 19 rotates, it will drive the connecting rod 20 to rotate synchronously. Thus, the connecting rod 20 will synchronously drive the auger blade B21 to rotate. When the auger blade B21 rotates, it will transport the water source. When transporting the water source, the connecting pipe 23 will continuously supply water into the inside of the conveying pipe 22. At the same time, since the conveying pipe 22 is connected to the water tank 24, a water cycle will be formed inside the water tank 24 when the conveying pipe 22 transports the water source. Thus, when the mold is injection-molded, it will quickly conduct heat to the lower end of the mold.

[0044] When the connecting rod 20 rotates, it will drive the pulley A25 to rotate synchronously. When the pulley A25 rotates, it will synchronously drive the pulley B27 to rotate through the upper belt 26. When the pulley B27 rotates, it will drive the reciprocating lead screw 32 to rotate synchronously. When the reciprocating lead screw 32 rotates, it will drive the piston 34 to move, thus continuously squeezing the air pressure and transporting it to the rear end. The hose 35 will transport the air pressure into the cylinder 36. Thus, when the air pressure inside the cylinder 36 increases, it will push the push rod 37 out. When the push rod 37 is pushed out, since the push rod 37 is connected to the baffle 30 through the fixed block 38, it will drive the two groups of baffles 30 to move synchronously to block the plastic groove 29.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A physical foaming injection molding device, comprising an operating table (1), characterized in that: A feed pipe (3) is arranged at the upper end of the operating table (1), a feed port (2) is fixedly connected to the upper end of the feed pipe (3), an outer cover (4) is arranged on the outer side of the feed pipe (3), a proportioning machine (5) is fixedly connected to one side of the feed port (2), an auger piece A (8) is arranged inside the feed pipe (3), one end of the feed pipe (3) is connected to a movable plate A (9), a connecting block (10) is fixedly connected to the outer side of the movable plate A (9), one end of the connecting block (10) is fixedly connected to a spring rod (11), nitrogen needles (13) are arranged on both sides of the outer cover (4), and the feed pipe (3) The end away from the movable plate A (9) is connected to a movable plate B (17), a gear ring (18) is fixedly connected to the outer side of the movable plate B (17), a gear (19) is provided on one side of the gear ring (18), a connecting rod (20) is fixedly connected to one end of the gear (19), a delivery pipe (22) is provided on the outer side of the connecting rod (20), a plastic groove (29) is provided at one end of the delivery pipe (22), a water tank (24) is connected to the inside of the plastic groove (29), baffles (30) are provided on both sides of the water tank (24), and a cylinder (36) is provided at the lower end of the baffle (30).

2. A physical foaming injection molding device according to claim 1, characterized in that: The lower end of the feed pipe (3) is fixedly connected to a bracket, and the feed pipe (3) is fixed to the upper end of the operating table (1) through the bracket. A fixed table is provided at one end of the feed pipe (3), and the outer cover (4) is fixedly connected to the fixed table. The feed port (2) is fixedly connected to the upper end of the operating table (1), and the feed port (2) passes through the feed pipe (3) and extends to the inside. A pipeline is fixedly connected to one side of the proportioning machine (5), and the proportioning machine (5) is connected to the inside of the feed pipe (3) through the pipeline. A control cabinet (14) is provided on one side of the feed port (2), and the control cabinet (14) is fixedly connected to the operating table (1).

3. A physical foaming injection molding device according to claim 1, characterized in that: A motor (6) is provided at one end of the feed pipe (3); the output end of the motor (6) is rotatably connected to a connecting shaft (7); the outer side of the connecting shaft (7) is fixedly connected to a screw dragon piece A (8); the outer side of the connecting shaft (7) is fixedly connected to a movable plate A (9); the movable plate A (9) is movably connected to one end of the feed pipe (3); one end of the spring rod (11) is fixedly connected to a knocking rod (12); the knocking rod (12) and the feed port (2) are located in the same plane.

4. A physical foaming injection molding device according to claim 1, characterized in that: Two groups of nitrogen needles (13) are fixedly connected to the outside of the outer cover (4), one end of the two groups of nitrogen needles (13) is fixedly connected to the fixed platform, and the end of the nitrogen needle (13) close to the fixed platform penetrates the outer cover (4) and the feed pipe (3) and extends to the inside of the feed pipe (3), one end of the two groups of nitrogen needles (13) is fixedly connected to the air intake pipe A (15), and one end of the air intake pipe A (15) is fixedly connected to the control machine (16).

5. A physical foaming injection molding device according to claim 1, characterized in that: The movable plate B (17) is movably connected to one end of the material conveying pipe (3), and a gear ring (18) is fixedly connected to the outer side of the movable plate B (17). A gear (19) is provided on one side of the gear ring (18). The gear (19) is fixed by connecting to a fixed platform, and the gear ring (18) and the gear (19) are meshed with each other.

6. A physical foaming injection molding device according to claim 5, characterized in that: One end of the gear (19) is fixedly connected to a connecting rod (20), the outer side of the connecting rod (20) is fixedly connected to an auger piece B (21), the outer side of the auger piece B (21) is connected to a delivery pipe (22), one end of the delivery pipe (22) is fixedly connected to a water tank (24), two groups of connecting pipes (23) are arranged on the outer side of the delivery pipe (22), one group of the two groups of connecting pipes (23) is fixedly connected to the outer side of the delivery pipe (22), and the other group is fixedly connected to one end of the water tank (24), and both groups of connecting pipes (23) penetrate the operating table (1) and extend to the lower end, the lower ends of the two groups of connecting pipes (23) are fixedly connected to a water storage tank (31), and the water storage tank (31) is fixedly connected to the lower end of the operating table (1).

7. A physical foaming injection molding device according to claim 1, characterized in that: The outer side of the connecting rod (20) is fixedly connected to a pulley A (25), the inner side of the pulley A (25) is sleeved with a belt (26), the belt (26) passes through the operating table (1) and extends to the lower end where a pulley B (27) is sleeved, one end of the pulley B (27) is connected to a fixed rod, and the fixed rod is fixedly connected to the lower end of the operating table (1).

8. A physical foaming injection molding device according to claim 1, characterized in that: One end of the pulley B (27) is fixedly connected to a reciprocating screw (32), a piston (34) is arranged outside the reciprocating screw (32), the piston (34) is connected to the reciprocating screw (32) ball nut pair, the air intake pipe B (33) is located outside the piston (34), the outside of the air intake pipe B (33) is fixedly connected to a fixing ring, and the fixing ring is fixedly connected to the water storage tank (31).

9. A physical foaming injection molding device according to claim 1, characterized in that: One end of the air inlet pipe B (33) is fixedly connected to a hose (35), one end of the hose (35) is connected to two groups of cylinders (36), the cylinders (36) are located inside the operating table (1), the cylinders (36) are connected to push rods (37), one end of the push rods (37) is fixedly connected to a fixing block (38), and the fixing block (38) is fixedly connected to the baffle (30).

10. A physical foaming injection molding device according to claim 1, characterized in that: One end of the movable plate B (17) is movably connected to an injection molding tube (28), one end of the injection molding tube (28) is fixedly connected to a plastic groove (29), and the injection molding tube (28) is located at the center of the plastic groove (29). Two groups of slide grooves are opened on both sides of the plastic groove (29), and baffles (30) are connected inside the two groups of slide grooves.

Images