Horizontal large-tonnage injection molding machine

Abstract

The invention relates to the technical field of plastic machinery manufacturing, and discloses a horizontal large-tonnage injection molding machine which comprises a workbench, an air heater is arranged on one side of the upper surface of the workbench, a connecting hose is arranged at the output end of the air heater, a bearing is arranged at one end of the connecting hose, a first rotating shaft is arranged on the outer wall of the bearing, and a second rotating shaft is arranged on the outer wall of the first rotating shaft. And an L-shaped plate is arranged at one end of the outer wall of the first rotating shaft, a first motor is arranged on the outer wall of the L-shaped plate, a second bevel gear is fixedly arranged at the output end of the first motor, and the tooth end of the second bevel gear is connected with a first bevel gear in a meshed mode. A first motor drives a bevel gear set to drive a first rotating shaft to rotate, first auger blades achieve material conveying and preliminary plasticizing, hot air generated by an air heater is fed into a cavity of the first rotating shaft through a bearing and then is blown out of a nozzle of the first rotating shaft, the materials are secondarily heated and plasticized, the plasticizing uniformity and sufficiency of the materials are improved, and the rotating stability is guaranteed. The problems of insufficient and non-uniform plasticization easily occurring during conveying and plasticization are solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic machinery manufacturing, in particular to a horizontal large-tonnage injection molding machine. Background Art

[0002] In the modern plastics processing industry, injection molding, with its advantages of efficient, mass-produced plastic products with complex shapes and high precision requirements, is widely used in numerous fields, such as automotive parts manufacturing, electronic product casing production, and various daily necessities processing. As the core equipment in the injection molding process, the performance of the injection molding machine directly affects the quality and production efficiency of plastic products.

[0003] Traditional horizontal injection molding machines often have numerous shortcomings when it comes to material conveying and plasticizing. Most rely solely on a simple screw or auger mechanism for material conveying and initial plasticization. This single approach makes it difficult to ensure sufficient and uniform heat distribution across all parts of the material during the conveying process. For example, material closer to the heat source may heat up and soften faster, while areas farther away may not receive sufficient heat, resulting in uneven overall plasticization. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a horizontal large-tonnage injection molding machine, which solves the problem of insufficient and uneven plasticization that is prone to occur during plasticization during conveying.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a horizontal large-tonnage injection molding machine, comprising a workbench, a hot air blower is provided on one side of the upper surface of the workbench, the output end of the hot air blower is provided with a connecting hose, one end of the connecting hose is provided with a bearing, the outer wall of the bearing is provided with a rotating shaft 1, one end of the outer wall of the rotating shaft 1 is provided with an L-shaped plate, the outer wall of the L-shaped plate is provided with a motor 1, the output end of the motor 1 is fixedly provided with a bevel gear 2, the tooth end of the bevel gear 2 is meshed and connected with the bevel gear 1, the middle part of the bevel gear 1 is provided on the outer wall of the rotating shaft 1, the interior of the rotating shaft 1 is provided with a cavity, the outer wall of the rotating shaft 1 is provided with an auger blade 1, and a plurality of nozzles are provided in the middle of the outer wall of the rotating shaft 1, the bottom end of the L-shaped plate is provided with a slot, the L-shaped plate is slidably connected to the slide slot 1 of the workbench through the slot, and a moving mechanism is provided on one side of the L-shaped plate.

[0006] By adopting the above technical solutions, the material plasticization can be improved, the component position adjustment can be more flexible and precise, and the overall operation can be more stable, thereby improving the injection molding quality, efficiency and equipment reliability, and helping the smooth development of large-tonnage injection molding production.

[0007] Preferably, the moving mechanism includes an electric push rod 1, the outer wall of the electric push rod 1 is arranged on the upper surface of the workbench, the output end of the electric push rod 1 is provided with a top plate, and one side of the top plate is arranged on one side of the L-shaped plate.

[0008] Preferably, the outer wall of the rotating shaft 1 passes through the L-shaped plate and is provided with a fixing box, and the outer wall of the rotating shaft 1 passes through the fixing box and is provided with a shell.

[0009] Preferably, the rotating shaft 1 and the auger blade 1 are rotatably connected inside the shell, the outer wall of the shell is provided with a plurality of heaters, one end of the outer wall of the shell is provided inside the fixed box, the outer wall of the shell is provided with a feeding mechanism, one end of the shell is provided with a nozzle, and one end of the nozzle is provided with a locking mechanism.

[0010] Preferably, the feeding mechanism includes a silo, the bottom end of the silo is arranged on the upper surface of the fixed box, a hopper is arranged on one side of the top of the silo, a motor 2 is arranged on the top of the silo, a bevel gear 3 is fixedly arranged on the output end of the motor 2, the tooth end of the bevel gear 3 is meshed and connected with a bevel gear 4, a rotating shaft 2 is arranged at the bottom end of the bevel gear 4, a stirring rod is arranged on the outer wall of the rotating shaft 2, and an auger blade 2 is arranged at the bottom end of the outer wall of the rotating shaft 2.

[0011] Preferably, the clamping mechanism includes a fixed plate, one side of the fixed plate is arranged at one end of the nozzle, an injection hole is arranged in the middle of the fixed plate, a plurality of guide columns are arranged on the other side of the fixed plate, a movable plate is arranged on the side away from the fixed plate, the movable plate is slidably connected to the outer wall of the guide column, the side wall of the movable plate is symmetrically provided with fixing rods, a tail plate is provided at one end of the fixed rod, and a driving mechanism is provided on one side of the tail plate.

[0012] Preferably, the driving mechanism includes motor three, gear two is fixedly provided at the output end of motor three, a rotating shaft three is provided in the middle of gear two, one end of the rotating shaft three is provided on the side wall of the tail plate, a motor seat is symmetrically provided on the outer wall of motor three, and one end of the motor seat is provided on the side wall of the tail plate.

[0013] Preferably, the side wall of the tail plate is provided with a plurality of auxiliary parts, the outer wall of the auxiliary part is rotatably connected to a gear ring, the tooth end of the gear ring is meshedly connected to a plurality of gears 1, the middle part of the gear 1 is provided on the outer wall of the guide column, one end of the outer wall of the guide column is provided with an external thread, and the gear 1 is provided on the outer wall of the guide column through the bearing 2.

[0014] Preferably, a slide bar is provided at the bottom end of the tail plate, one end of the slide bar is provided at the bottom end of the movable plate, a second slide groove is symmetrically provided on the other side of the upper surface of the workbench, the outer wall of the slide bar is slidably connected to the upper surface of the workbench through the second slide groove, and pillars are symmetrically provided at the bottom end of the workbench.

[0015] Preferably, a second electric push rod is provided in the middle of the side wall of the tail plate, a fixed plate is provided at the output end of the second electric push rod, a plurality of telescopic rods are provided on one side of the fixed plate, and springs are provided inside the telescopic rods.

[0016] Working Principle: After the injection molding machine is started, Motor 2 drives Bevel Gear 3, which in turn rotates Shaft 2 through Bevel Gear 4. The stirring rod on its outer wall evenly mixes the material in the hopper, and Auger 2 pushes the material into the fixed box and shell. Simultaneously, Motor 1 drives Bevel Gear 2, which in turn rotates Shaft 1. Auger 1 conveys the material and initially plasticizes it. Hot air from the hot air blower flows through the connecting hose, Shaft 1 cavity, and nozzle for secondary heating and plasticization. Next, Electric Push Rod 1 pushes the top plate, moving the L-shaped plate and connected components, bringing the end of Shaft 1 close to the nozzle. Auger 1 squeezes the material, and the plasticized material is ejected from the nozzle.

[0017] In the mold clamping mechanism, Motor 3 drives Gear 2, which in turn rotates the ring gear and Gear 1. This causes the guide post to drive the tail plate via a threaded drive, which in turn moves the movable plate along the guide post in the direction of the fixed plate to close the mold and clamp it. During injection molding, the material is injected into the mold cavity through the injection hole in the fixed plate. After the injection is complete and the product cools and takes shape, Electric Push Rod 2 pushes the fixed plate and telescopic rod, while the spring provides cushioning and ejection force to eject the product from the mold.

[0018] During the entire process, the slide bar and the slide groove cooperate to ensure the smooth movement of the movable plate and other components, the pillars firmly support the workbench, and all components work together to realize the processes of material transportation, plasticization, injection, clamping and demoulding, completing the efficient and stable injection molding production of the large-tonnage injection molding machine.

[0019] The present invention provides a horizontal large-tonnage injection molding machine. It has the following beneficial effects: 1. In the present invention, motor 1 drives a bevel gear set to rotate shaft 1, and auger blade 1 achieves material conveying and initial plasticization. Hot air generated by the hot air blower is sent into the cavity of shaft 1 through the bearing and then blown out from the nozzle of shaft 1 to secondary heat and plasticize the material, improving the uniformity and sufficiency of material plasticization and ensuring rotational stability. This solves the problem of insufficient and uneven plasticization that often occurs during conveying plasticization.

[0020] 2. In this invention, a moving mechanism driven by an electric push rod (1) drives the movement of related components to adjust the relative position of the rotating shaft (1) and the nozzle, ensuring stable and accurate material ejection from the nozzle. At the same time, the material can be well conveyed within the shell, avoiding blockage and uneven conveying, effectively improving the accuracy and stability of the injection molding process and the quality of the finished product. This solves the problems of traditional injection molding machines that make it difficult to accurately inject materials into the mold cavity and cause unstable material conveying.

[0021] 3. In the present invention, the second motor drives the bevel gear transmission to drive the second rotating shaft to rotate. The stirring rod evenly mixes the materials in the silo, ensuring the stability of the properties of the subsequent plasticized materials. The second auger blade achieves stable conveying and can accurately transport materials on demand, improving the quality stability of injection molded products and the production efficiency of the injection molding machine. This solves the problem of material agglomeration and accumulation in the silo, which can cause production interruptions.

[0022] 4. In this invention, the drive mechanism utilizes a motor, three gears, and a screw drive to precisely control the position of the moving plate, ensuring tight mold closure and guaranteed product quality. The even distribution of driving force ensures smoother and more reliable movement, improves energy conversion efficiency, and achieves a good balance between mold opening and closing speed and precision, thereby enhancing production efficiency. This solves the problems of low efficiency, energy consumption, and high maintenance costs associated with traditional hydraulic drives.

[0023] 5. In this invention, the ejection mechanism, comprised of two electric push rods and related components, achieves precisely adjustable and controllable demolding force. Multiple telescopic rods ensure uniform ejection, while springs provide adaptive buffering protection, extending mold life and ensuring smooth demolding of various product types while improving demolding quality. This solves the problems of traditional ejection systems, such as mechanical ejection, that can easily damage the product and experience uneven demolding force. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective diagram of a horizontal large-tonnage injection molding machine proposed by the present invention; Figure 2 This is a schematic diagram of the partial structure of the support of a horizontal large-tonnage injection molding machine proposed by the present invention; Figure 3 This is a schematic diagram of the local structure of a hot air blower of a horizontal large-tonnage injection molding machine proposed by the present invention; Figure 4 This is a schematic diagram of a local structure of a rotating shaft of a horizontal large-tonnage injection molding machine proposed by the present invention; Figure 5 This is a schematic diagram of the partial structure of the silo of a horizontal large-tonnage injection molding machine proposed by the present invention; Figure 6 This is a schematic diagram of three partial structures of a horizontal large-tonnage injection molding machine motor proposed by the present invention; Figure 7 This is a schematic diagram of the partial structure of the guide column of a horizontal large-tonnage injection molding machine proposed by the present invention; Figure 8 The figure is a schematic diagram of two partial structures of an electric push rod of a horizontal large-tonnage injection molding machine proposed by the present invention.

[0025] Among them, 1. Workbench; 2. Support; 3. Hot air blower; 4. Connecting hose; 5. L-shaped plate; 6. Motor 1; 7. Fixed box; 8. Bin; 9. Hopper; 10. Heater; 11. Shell; 12. Fixed plate; 13. Moving plate; 14. Slide 1; 15. Slide 2; 16. Electric push rod 1; 17. Top plate; 18. Tail plate; 19. Slot; 20. Nozzle; 21. Auger blade 1; 22. Nozzle; 23. Rotating shaft 1; 24. Bevel gear 1; 25. Bevel gear 2; 26. Bearing; 27. Motor 2; 28. Bevel gear 3; 29. ​​Bevel gear 4; 30. Rotating shaft 2; 31. Stirring rod; 32. Auger blade 2; 33. Motor 3; 34. Motor seat; 35. Guide column; 36. External thread; 37. Gear 1; 38. Gear ring; 39. Auxiliary parts; 40. Electric push rod 2; 41. Slide; 42. Injection hole; 43. Rotating shaft 3; 44. Gear 2; 45. Spring; 46. Fixed plate; 47. Telescopic rod. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] Please see the attached Figure 1 -Attached Figure 4 , an embodiment of the present invention provides a horizontal large-tonnage injection molding machine, including a workbench 1, a hot air blower 3 is provided on one side of the upper surface of the workbench 1, and a connecting hose 4 is provided at the output end of the hot air blower 3, a bearing 26 is provided at one end of the connecting hose 4, a rotating shaft 23 is provided on the outer wall of the bearing 26, an L-shaped plate 5 is provided at one end of the outer wall of the rotating shaft 23, a motor 6 is provided on the outer wall of the L-shaped plate 5, a bevel gear 25 is fixedly provided on the output end of the motor 6, the tooth end of the bevel gear 25 is meshed and connected with the bevel gear 24, the middle part of the bevel gear 24 is provided on the outer wall of the rotating shaft 23, a cavity is provided inside the rotating shaft 23, an auger blade 21 is provided on the outer wall of the rotating shaft 23, and a plurality of nozzles 22 are provided in the middle of the outer wall of the rotating shaft 23, a slot 19 is provided at the bottom end of the L-shaped plate 5, the L-shaped plate 5 is slidably connected to the slide groove 14 of the workbench 1 through the slot 19, and a moving mechanism is provided on one side of the L-shaped plate 5.

[0028] Specifically, when the device is in operation, Motor 1 (6) is powered on and begins operating. The output shaft of Motor 1 (6) rotates, directly driving Bevel Gear 2 (25) fixedly connected to it in circular motion. Because the teeth of Bevel Gear 2 (25) and Bevel Gear 1 (24) mesh with each other, the gear transmission principle drives Bevel Gear 1 (24) to rotate. Because the center of Bevel Gear 1 (24) is fixedly connected to the outer wall of Rotating Shaft 1 (23), the rotation of Bevel Gear 1 (24) also causes Rotating Shaft 1 (23) to rotate synchronously.

[0029] During the rotation of the rotating shaft 23, the auger blade 21 provided on its outer wall rotates together with the rotating shaft 23. According to the principle of screw conveying, the auger blade 21 will generate axial thrust on the material conveyed from the silo 8, so that the material will gradually move forward along the axial direction of the rotating shaft 23. At the same time, during the movement, the material will achieve a preliminary plasticization process due to friction and extrusion with the auger blade 21, the inner wall of the rotating shaft 23, etc.

[0030] When hot air blower 3 is turned on, the internal fan impeller rotates, causing the air to flow and heat. The resulting hot air is then transported through connecting hose 4. Connecting hose 4 is connected to the output port of hot air blower 3 at one end, and to the cavity within rotating shaft 1 23 via bearing 26 at the other end. The hot air then enters the cavity of rotating shaft 1 23. The hot air is then blown out through several nozzles 22 located in the middle of the outer wall of rotating shaft 1 23. This hot air acts on the material being transported by auger blade 1 21, heating the material based on the principle of heat transfer, further promoting its plasticization and achieving a better plasticizing effect.

[0031] The slot 19 at the bottom end of the L-shaped plate 5 and the slide slot 14 on the workbench 1 form a moving mechanism, thereby achieving the injection molding action close to the mold.

[0032] Motor 6 drives the bevel gear set to rotate shaft 1 (23), and auger blade 1 (21) transports and initially plasticizes the material. Hot air generated by hot air blower 3 is delivered into the cavity of shaft 1 (23) via bearing 26 and then blown out from nozzle 22 of shaft 1 (23), heating and plasticizing the material a second time. This improves the uniformity and sufficiency of material plasticization and ensures rotational stability. This solves the problem of insufficient and uneven plasticization that often occurs during conveying plasticization.

[0033] Please see the attached Figure 1 -Attached Figure 4The moving mechanism includes an electric push rod 16, the outer wall of the electric push rod 16 is set on the upper surface of the workbench 1, the output end of the electric push rod 16 is provided with a top plate 17, one side of the top plate 17 is set on one side of the L-shaped plate 5, the outer wall of the rotating shaft 23 passes through the L-shaped plate 5 and is provided with a fixed box 7, the outer wall of the rotating shaft 23 passes through the fixed box 7 and is provided with a shell 11, the rotating shaft 23 and the auger blade 21 are rotatably connected to the inside of the shell 11, the outer wall of the shell 11 is provided with a plurality of heaters 10, one end of the outer wall of the shell 11 is set inside the fixed box 7, the outer wall of the shell 11 is provided with a feeding mechanism, one end of the shell 11 is provided with a nozzle 20, and one end of the nozzle 20 is provided with a locking mechanism.

[0034] Specifically, when the electric push rod 16 is powered on, its internal motor begins to operate, driving the corresponding transmission components, driving the push rod to perform linear telescopic motion in the set direction. The top plate 17 at its output end moves as the push rod expands and contracts, contacting one side of the L-shaped plate 5, thereby transmitting the thrust generated by the electric push rod 16 to the L-shaped plate 5.

[0035] Because the slot 19 at the bottom of the L-shaped plate 5 and the slide groove 14 on the workbench 1 form a sliding fit, after receiving the thrust transmitted by the top plate 17, the L-shaped plate 5 can slide smoothly along the track of the slide groove 14. During the sliding process, the related components connected to the L-shaped plate 5 will move synchronously with the L-shaped plate 5.

[0036] As for the rotating shaft 1 23, it passes through the fixed box 7 and the shell 11. When it moves with the L-shaped plate 5, it will produce corresponding displacement inside the fixed box 7 and the shell 11, causing one end of the rotating shaft 1 23 to move toward the nozzle 20. During this process, the auger blade 1 21 on the rotating shaft 1 23 continuously squeezes and pushes the plasticized material in the shell 11. The axial thrust generated by the rotation of the auger blade 1 21 and the extrusion force formed between it and the inner wall of the shell 11 force the plasticized material to move toward the nozzle 20, and finally be ejected from the nozzle 20, completing the material injection action and preparing for the subsequent molding in the mold.

[0037] The moving mechanism driven by the electric push rod 16 drives the movement of related components, achieving adjustment of the relative position of the rotating shaft 23 and the nozzle 20, ensuring stable and accurate material ejection from the nozzle 20. At the same time, it can maintain a good material conveying state within the shell 11, avoiding blockage and uneven conveying, effectively improving the accuracy and stability of the injection molding process and the quality of the finished product. This solves the problems of traditional injection molding machines such as the difficulty of accurately injecting materials into the mold cavity and the unstable material conveying.

[0038] Please see the attached Figure 1 -Attached Figure 5The feeding mechanism includes a silo 8, the bottom end of the silo 8 is arranged on the upper surface of the fixed box 7, a hopper 9 is arranged on one side of the top of the silo 8, a motor 27 is arranged on the top of the silo 8, a bevel gear 3 28 is fixedly arranged on the output end of the motor 27, the tooth end of the bevel gear 3 28 is meshed and connected with a bevel gear 4 29, a rotating shaft 2 30 is arranged at the bottom end of the bevel gear 4 29, a stirring rod 31 is arranged on the outer wall of the rotating shaft 2 30, and an auger blade 2 32 is arranged at the bottom end of the outer wall of the rotating shaft 2 30.

[0039] Specifically, when the feeding mechanism begins operation, motor 2 27 is first powered on and starts running. The output end of motor 27 drives bevel gear 3 28 to rotate. Since the tooth ends of bevel gear 3 28 and bevel gear 4 29 are meshed with each other, according to the principle of gear transmission, the rotation of bevel gear 3 28 drives bevel gear 4 29 to rotate synchronously.

[0040] The bottom end of bevel gear 4 29 is fixedly connected to rotating shaft 2 30, so when bevel gear 4 29 rotates, it will also drive rotating shaft 2 30 to rotate. During the rotation of rotating shaft 2 30, stirring rod 31 provided on its outer wall will follow the rotation in a circular motion. Stirring rod 31 will stir the material in silo 8, so that the material is fully mixed and turned in silo 8, and the material will not clump or accumulate in a certain position in silo 8.

[0041] The auger blade 2 32 at the bottom end of the outer wall of the rotating shaft 2 30 will also rotate with the rotation of the rotating shaft 2 30. Based on the principle of spiral conveying, the auger blade 2 32 will generate axial thrust on the material at the bottom of the silo 8, pushing the material toward the fixed box 7 below the silo 8, thereby realizing the material transportation process from the silo 8 to the fixed box 7, and continuously and stably providing material for subsequent injection molding processes such as further plasticization of the material in the shell 11 and ejection from the nozzle 20.

[0042] Motor 27 drives the bevel gear transmission to rotate shaft 2 30 , and stirring rod 31 evenly mixes the materials in silo 8 , ensuring the stability of the properties of the subsequent plasticized materials. Auger blade 2 32 ensures stable and precise material delivery on demand, improving the quality and stability of injection molded products and the production efficiency of the injection molding machine. This solves the problem of material agglomeration and accumulation in silo 8 causing production interruptions.

[0043] Please see the attached Figure 1 -Attached Figure 2 , Attachment Figure 6 -Attached Figure 7The clamping mechanism includes a fixed plate 12, one side of the fixed plate 12 is arranged at one end of the nozzle 20, an injection hole 42 is arranged in the middle of the fixed plate 12, and a plurality of guide columns 35 are arranged on the other side of the fixed plate 12. A movable plate 13 is arranged on the side away from the fixed plate 12, and the movable plate 13 is slidably connected to the outer wall of the guide column 35. Fixed rods are symmetrically arranged on the side wall of the movable plate 13, a tail plate 18 is arranged at one end of the fixed rod, and a driving mechanism is arranged on one side of the tail plate 18.

[0044] Specifically, when the mold clamping mechanism is in operation, the drive mechanism first starts operating. This drive mechanism outputs power to the tail plate 18. The tail plate 18 transmits this power to the movable plate 13 via a fixed rod connected to it. Because the movable plate 13 is slidably connected to the outer wall of the guide post 35, the guide post 35 acts as a guide and limiter, ensuring that the movable plate 13 can only slide smoothly and linearly along the axial direction of the guide post 35. Upon receiving the power transmitted from the tail plate 18, the movable plate 13 moves along the guide post 35 toward the fixed plate 12.

[0045] As the movable plate 13 moves toward and gradually approaches the fixed plate 12, the space between them for the mold gradually shrinks. The mold is pre-placed between the fixed plate 12 and the movable plate 13. An injection hole 42 is provided in the center of the fixed plate 12. This injection hole 42 is positioned correspondingly to the nozzle 20, allowing the subsequent plasticized material to be accurately injected into the mold cavity through the nozzle 20 through the injection hole 42. As the movable plate 13 continues to approach the fixed plate 12, it eventually fits tightly against the fixed plate 12, applying sufficient clamping force to the mold to keep it closed during the injection process. This prevents the mold cavity from expanding or leaking due to internal injection pressure, ensuring a stable and safe injection process.

[0046] The clamping mechanism, with the aid of guide posts 35, ensures the opening and closing of the movable plate 13 and fixed plate 12, improving mold cavity positioning accuracy, product dimensional accuracy, and appearance quality. Furthermore, the drive mechanism provides sufficient, adjustable clamping force to tightly close the mold, improving product qualification rates and ensuring injection molding success rates and production stability. This solves the problem of mold opening and closing being prone to deflection, inaccurate positioning, resulting in mold damage, and large dimensional deviations in the molded product.

[0047] Please see the attached Figure 6 -Attached Figure 7The driving mechanism includes a motor three 33, a gear two 44 is fixedly provided at the output end of the motor three 33, a rotating shaft three 43 is provided in the middle of the gear two 44, one end of the rotating shaft three 43 is provided on the side wall of the tail plate 18, a motor base 34 is symmetrically provided on the outer wall of the motor three 33, one end of the motor base 34 is provided on the side wall of the tail plate 18, a plurality of auxiliary parts 39 are provided on the side wall of the tail plate 18, the outer wall of the auxiliary part 39 is rotatably connected with a gear ring 38, the tooth end of the gear ring 38 is meshed with a plurality of gears 1 37, the middle part of the gear 1 37 is provided on the outer wall of the guide column 35, one end of the outer wall of the guide column 35 is provided with an external thread 36, and the gear 1 37 is provided on the outer wall of the guide column 35 through the bearing two.

[0048] Specifically, when the drive mechanism is in operation, motor three (33) is powered on, and its output drives gear two (44), which is fixedly connected to it, to rotate. Gear two (44) meshes with the teeth of ring gear (38), thereby driving ring gear (38) in circular motion around the axis of auxiliary member (39). The rotation of ring gear (38) simultaneously drives the meshing gears (37) to rotate synchronously. These gears (37) are mounted on the outer wall of corresponding guide posts (35) and are rotatably connected via bearing two.

[0049] One end of the outer wall of the guide post 35 is machined with an external thread 36, which cooperates with the corresponding threaded hole in the tail plate 18 to form a spiral transmission pair. When gear 1 37 drives the guide post 35 to rotate, the threaded transmission between the guide post 35 and the tail plate 18 causes the guide post 35 to move axially relative to the tail plate 18. Because the other end of the guide post 35 is fixed to the fixed plate 12, the tail plate 18 moves linearly along the axis of the guide post 35 due to the axial movement of the guide post 35. The tail plate 18 is connected to the movable plate 13 via a fixed rod, which in turn drives the movable plate 13 to slide on the guide post 35, realizing the mold opening and closing action between the movable plate 13 and the fixed plate 12.

[0050] The drive mechanism utilizes motor 33 to drive gears and a screw drive, achieving precise control of the position of the movable plate 13, ensuring tight mold closure and guaranteeing product quality. The even distribution of driving force ensures smoother and more reliable movement, improves energy conversion efficiency, and achieves a good balance between mold opening and closing speed and precision, thereby increasing production efficiency. This solves the problems of low efficiency, energy consumption, and high maintenance costs associated with traditional hydraulic drives.

[0051] Please see the attached Figure 1 -Attached Figure 2 , Attachment Figure 6 A slide bar 41 is provided at the bottom end of the tail plate 18, one end of the slide bar 41 is provided at the bottom end of the movable plate 13, and a second slide groove 15 is symmetrically provided on the other side of the upper surface of the workbench 1. The outer wall of the slide bar 41 is slidably connected to the upper surface of the workbench 1 through the second slide groove 15, and a pillar 2 is symmetrically provided at the bottom end of the workbench 1.

[0052] Specifically, the tailgate 18 is connected to the movable plate 13 via a fixed rod. A slide bar 41 at the bottom of the tailgate 18 provides crucial guidance and support. When the drive mechanism moves the tailgate 18, it drives the slide bar 41 along with it. One end of the slide bar 41 extends to the bottom of the movable plate 13, allowing the movable plate 13 to move with the tailgate 18.

[0053] The outer wall of the slide bar 41 cooperates with the second slide groove 15 symmetrically arranged on the other side of the upper surface of the workbench 1 to form a sliding connection structure. The slide bar 41 can slide along the direction defined by the second slide groove 15. Because the second slide groove 15 is symmetrically arranged on the upper surface of the workbench 1, it provides a stable and precise sliding track for the slide bar 41, ensuring that the slide bar 41 and the connected tail plate 18 and movable plate 13 can only move along the predetermined linear direction, avoiding abnormal movement such as deflection.

[0054] The bottom end of the workbench 1 is symmetrically provided with pillars 2, which mainly play the role of firmly supporting the entire workbench 1 and the components installed on the workbench 1, supporting the entire equipment on the installation plane such as the ground, so that it maintains a stable working state, and bears the weight of the equipment itself and various forces generated during the injection molding process.

[0055] Please see the attached Figure 2 , Attachment Figure 6 -Attached Figure 8 An electric push rod 2 40 is provided in the middle of the side wall of the tail plate 18, and a fixed plate 46 is provided at the output end of the electric push rod 2 40. A plurality of telescopic rods 47 are provided on one side of the fixed plate 46, and a spring 45 is provided inside the telescopic rod 47.

[0056] Specifically, when the injection molding process is completed and the mold has cooled, the electric push rod 2 40 is started. Its internal drive system drives the push rod to extend in a straight line, and the fixed plate 46 at the output end of the push rod moves toward the mold. Several telescopic rods 47 on one side of the fixed plate 46 are pushed forward synchronously. After the front end of the telescopic rod 47 contacts the product in the mold, it stops moving, but the electric push rod 2 40 continues to apply thrust. At this time, the spring 45 inside the telescopic rod 47 begins to compress and store elastic potential energy. As the compression of the spring 45 increases, the elastic force it generates acts on the product through the telescopic rod 47. When the force exceeds the adhesion between the product and the mold, the product is ejected from the mold cavity. After demolding is completed, the electric push rod 2 40 contracts in the opposite direction, the spring 45 returns to its original length, and the telescopic rod 47 returns to its initial position with the fixed plate 46 to prepare for the next injection molding cycle.

[0057] The ejection mechanism, comprised of an electric push rod 40 and related components, achieves precisely adjustable and controllable demolding force. Multiple telescopic rods 47 ensure uniform ejection, while springs 45 provide adaptive cushioning protection, extending mold life and ensuring smooth demolding of various product types while improving demolding quality. This solves the problems of traditional ejection systems, such as mechanical ejection, which can easily damage the product and experience uneven demolding force.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal large-tonnage injection molding machine, comprising a workbench (1), characterized in that: A hot air blower (3) is provided on one side of the upper surface of the workbench (1), a connecting hose (4) is provided at the output end of the hot air blower (3), a bearing (26) is provided at one end of the connecting hose (4), a rotating shaft (23) is provided on the outer wall of the bearing (26), an L-shaped plate (5) is provided at one end of the outer wall of the rotating shaft (23), a motor (6) is provided on the outer wall of the L-shaped plate (5), a bevel gear (25) is fixedly provided at the output end of the motor (6), and the tooth end of the bevel gear (25) is meshed with the bevel gear (25). Bevel gear one (24), the middle part of the bevel gear one (24) is arranged on the outer wall of the rotating shaft one (23), the interior of the rotating shaft one (23) is provided with a cavity, the outer wall of the rotating shaft one (23) is provided with an auger blade one (21), the middle part of the outer wall of the rotating shaft one (23) is provided with a plurality of nozzles (22), the bottom end of the L-shaped plate (5) is provided with a slot (19), the L-shaped plate (5) is slidably connected to the slide slot one (14) of the workbench (1) through the slot (19), and a moving mechanism is provided on one side of the L-shaped plate (5).

2. A horizontal large-tonnage injection molding machine according to claim 1, characterized in that: The moving mechanism includes an electric push rod (16), the outer wall of which is arranged on the upper surface of the workbench (1), and a top plate (17) is arranged at the output end of the electric push rod (16), and one side of the top plate (17) is arranged on one side of the L-shaped plate (5).

3. A horizontal large-tonnage injection molding machine according to claim 1, characterized in that: The outer wall of the rotating shaft 1 (23) passes through the L-shaped plate (5) and is provided with a fixed box (7), and the outer wall of the rotating shaft 1 (23) passes through the fixed box (7) and is provided with a shell (11).

4. A horizontal large-tonnage injection molding machine according to claim 1, characterized in that: The rotating shaft (23) and the auger blade (21) are rotatably connected inside the shell (11); a plurality of heaters (10) are provided on the outer wall of the shell (11); one end of the outer wall of the shell (11) is provided inside the fixed box (7); a feeding mechanism is provided on the outer wall of the shell (11); a nozzle (20) is provided at one end of the shell (11); and a clamping mechanism is provided at one end of the nozzle (20).

5. A horizontal large-tonnage injection molding machine according to claim 4, characterized in that: The feeding mechanism includes a silo (8), the bottom end of the silo (8) is arranged on the upper surface of the fixed box (7), a hopper (9) is arranged on one side of the top end of the silo (8), a motor 2 (27) is arranged on the top end of the silo (8), a bevel gear 3 (28) is fixedly arranged on the output end of the motor 2 (27), the tooth end of the bevel gear 3 (28) is meshedly connected with the bevel gear 4 (29), a rotating shaft 2 (30) is arranged on the bottom end of the bevel gear 4 (29), a stirring rod (31) is arranged on the outer wall of the rotating shaft 2 (30), and a auger blade 2 (32) is arranged on the bottom end of the outer wall of the rotating shaft 2 (30).

6. A horizontal large-tonnage injection molding machine according to claim 4, characterized in that: The clamping mechanism includes a fixed plate (12), one side of the fixed plate (12) is arranged at one end of the nozzle (20), an injection hole (42) is arranged in the middle of the fixed plate (12), a plurality of guide columns (35) are arranged on the other side of the fixed plate (12), a movable plate (13) is arranged on the side away from the fixed plate (12), the movable plate (13) is slidably connected to the outer wall of the guide column (35), a fixed rod is symmetrically arranged on the side wall of the movable plate (13), a tail plate (18) is arranged at one end of the fixed rod, and a driving mechanism is arranged on one side of the tail plate (18).

7. A horizontal large-tonnage injection molding machine according to claim 6, characterized in that: The driving mechanism includes a motor three (33), a gear two (44) is fixedly provided at the output end of the motor three (33), a rotating shaft three (43) is provided in the middle of the gear two (44), one end of the rotating shaft three (43) is provided on the side wall of the tail plate (18), a motor base (34) is symmetrically provided on the outer wall of the motor three (33), and one end of the motor base (34) is provided on the side wall of the tail plate (18).

8. A horizontal large-tonnage injection molding machine according to claim 6, characterized in that: The side wall of the tail plate (18) is provided with a plurality of auxiliary parts (39), the outer wall of the auxiliary part (39) is rotatably connected to a gear ring (38), the tooth end of the gear ring (38) is meshedly connected to a plurality of gears (37), the middle part of the gear (37) is provided on the outer wall of the guide column (35), one end of the outer wall of the guide column (35) is provided with an external thread (36), and the gear (37) is provided on the outer wall of the guide column (35) through a bearing (2).

9. A horizontal large-tonnage injection molding machine according to claim 6, characterized in that: A slide bar (41) is provided at the bottom end of the tail plate (18), one end of the slide bar (41) is provided at the bottom end of the movable plate (13), a second slide groove (15) is symmetrically provided on the other side of the upper surface of the workbench (1), the outer wall of the slide bar (41) is slidably connected to the upper surface of the workbench (1) through the second slide groove (15), and a support (2) is symmetrically provided at the bottom end of the workbench (1).

10. The horizontal large-tonnage injection molding machine according to claim 6, characterized in that: A second electric push rod (40) is provided in the middle of the side wall of the tail plate (18), a fixed plate (46) is provided at the output end of the second electric push rod (40), a plurality of telescopic rods (47) are provided on one side of the fixed plate (46), and a spring (45) is provided inside the telescopic rod (47).

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