Efficient and energy-saving electric pre-molding box type injection structure

Abstract

The invention discloses an efficient energy-saving electric pre-molding box type injection structure, and relates to the technical field of injection structures, the efficient energy-saving electric pre-molding box type injection structure comprises an electric pre-molding device and a supporting frame, a sound insulation and heat dissipation box is arranged on the outer wall of the electric pre-molding device, a discharging pipe is fixedly installed at an outlet in the lower end of the electric pre-molding device, and an injection mechanism is arranged in the sound insulation and heat dissipation box; and a transmission mechanism is arranged on one side of the injection mechanism. According to the injection molding machine, large torque can be provided within a short time to rapidly push plastic raw materials for injection molding, so that the injection molding period is shortened, the production efficiency is improved, then, by arranging the sound insulation and heat dissipation box, all structures are wrapped in the sound insulation and heat dissipation box, various forces generated during operation can be effectively resisted, the injection mechanism is prevented from deforming, and the service life of the injection molding machine is prolonged. Therefore, the precision and stability of the injection process are ensured, the equipment can be ensured to be still stable and reliable in a high-pressure environment, and meanwhile, the risk that the injection mechanism is damaged by the accidental factors can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of injection structures, in particular to a high-efficiency and energy-saving electric pre-plastic box-type injection structure. Background Art

[0002] Electric pre-molding is a key step in the injection molding process. It mainly refers to the use of motors to drive plastic raw materials for injection molding, conveying, compacting, melting and homogenizing solid plastic particles (such as polyethylene, polypropylene, etc.) in the barrel to prepare uniform plastic melt for subsequent injection molding processes. This process is similar to processing solid ingredients into a uniform liquid or semi-liquid state before cooking to facilitate better molding operations.

[0003] However, in the prior art, in the pre-molding stage, especially for the pre-molding of a large amount of plastic raw materials required for some large injection molded parts, the speed of electric pre-molding is not as fast as the hydraulic drive pre-molding method. This is because the power output of the electric drive system is relatively stable, and it cannot provide a large torque in a short time like the hydraulic system to quickly drive the plastic raw materials for injection molding, thereby prolonging the injection molding cycle and reducing production efficiency. Summary of the invention

[0004] The object of the present invention is to provide a highly efficient and energy-saving electric pre-plastic box-type injection structure to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an efficient and energy-saving electric pre-plastic box-type injection structure, comprising an electric pre-plastic device and a support frame, the outer wall of the electric pre-plastic device is provided with a sound insulation and heat dissipation box, the lower end outlet of the electric pre-plastic device is fixedly installed with a feed pipe, the interior of the sound insulation and heat dissipation box is provided with an injection mechanism, one side of the injection mechanism is provided with a transmission mechanism, and the interior of the sound insulation and heat dissipation box is provided with a lifting mechanism; The injection mechanism includes a square frame, a driving motor, an injection tube and two groups of cranks, an injection head is fixedly installed at one end of the injection tube, a stabilizing seat is fixedly installed on the inner wall of the square frame, a special-shaped seat is fixedly installed on the upper end of the square frame, a first rotating rod is rotatably installed inside the frame, a second rotating rod is rotatably installed inside the frame, a first transmission rod is rotatably installed through one end of the stabilizing seat, a first bevel gear is fixedly installed on the outer wall of the first transmission rod, a crank rod is rotatably installed in the middle of the two groups of cranks, and pinions are fixedly installed on the outer walls of the first and second rotating rods. A second bevel gear is fixedly installed on the outer wall of the second rotating rod, and a large gear is fixedly installed on the outer walls of the first rotating rod and the second rotating rod. A piston is rotatably installed on the other end of the curved rod, and a transmission gear is provided on the upper end of the square frame. A driven gear is rotatably installed on the upper end of the square frame. One end of the first transmission rod passes through the inner wall of the square frame and is fixed to the output end of the driving motor. A part of the piston is movably installed inside the injection tube. The upper end of the first rotating rod passes through the upper end of the square frame and is fixed to the lower end of the transmission gear. The first bevel gear is meshed with the second bevel gear.

[0006] Preferably, the transmission mechanism includes a concave seat, and the inner walls of the square frame and the concave seat are fixedly installed with fixing plates, one end of one group of the fixing plates is penetrated by a first limiting rod for rotation, and a third bevel gear is fixedly installed on the outer wall of the first limiting rod, one end of one group of the fixing plates is penetrated by an electric telescopic rod, and one end of another group of the fixing plates is penetrated by a second limiting rod, a fourth bevel gear is fixedly installed on the outer wall of the second limiting rod, a limiting cylinder is slidably installed on the outer wall of the first limiting rod, and a connecting plate is fixedly installed on the outer wall of the limiting cylinder.

[0007] Preferably, the lower end protrusion of one group of the cranks is fixed to the upper end of the driven gear, and the upper end protrusion of the other group of cranks is rotatably mounted inside the special-shaped seat, and the transmission gear is meshed with the driven gear.

[0008] Preferably, a feed pipe is installed through the upper end of the injection tube, a tripod support is fixedly installed on the other end of the square frame, and the injection tube is fixedly installed on the upper end of the tripod support.

[0009] Preferably, one group of the pinion gears meshes with one group of the large gears, and the other group of the pinion gears meshes with the other group of the large gears. A shock absorbing mechanism is fixedly mounted on one end of the frame, and the lower end of the drive motor is fixed to the upper part of the shock absorbing mechanism.

[0010] Preferably, the lifting mechanism includes a threaded seat, four sets of guide rails are fixedly installed inside the sound insulation and heat dissipation box, two sets of sliding seats are slidably installed on the outer walls of the four sets of guide rails, the internal threads of the threaded seat are connected with a threaded rod, and the outer wall of the threaded rod is fixedly installed with a fifth bevel gear.

[0011] Preferably, one side of the concave seat is fixed to one side of the square frame, the extended end of the electric telescopic rod is fixed to one side of the connecting plate, and the third bevel gear is meshed with the second bevel gear.

[0012] Preferably, one side of the threaded seat is fixed to the inner wall of the sound insulation and heat dissipation box, the upper end of the threaded rod is rotatably installed inside the concave seat, the fifth bevel gear is meshed with the fourth bevel gear, and one end of the eight groups of sliding seats are respectively fixed to the square frame, one side of the concave seat and both sides of the support frame.

[0013] Preferably, a feed hopper is provided at the upper end of the soundproof heat dissipation box, an elliptical hole is penetrated through one end of the soundproof heat dissipation box, the lower end of the electric pre-plasticizing device is fixed to the upper end of the support frame, and the lower end of the support frame is fixed to the upper end of the square frame.

[0014] Preferably, one end of the injection head passes through the inside of the elliptical hole and is located on the outside of the soundproof heat dissipation box, the lower end of the feed hopper passes through the upper end of the soundproof heat dissipation box and is fixed to the feed port of the electric preplasticization device, and the outer wall of the discharge pipe is fixed to the inner wall of the feed pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) In the present invention, an injection mechanism is provided. Since one set of cranks drives the piston to move left and right repeatedly inside the injection tube through the crank rod, the plastic raw material can be repeatedly pushed to move inside the injection tube, thereby facilitating the injection molding of the plastic raw material, thereby providing a large torque in a short time to quickly push the plastic raw material for injection molding, thereby reducing the injection molding cycle and improving production efficiency. Secondly, a soundproof heat dissipation box is provided, and the soundproof heat dissipation box wraps all the structures inside it, which can effectively resist various forces generated during operation and avoid deformation of the injection mechanism, thereby ensuring the accuracy and stability of the injection process, ensuring that the equipment is still stable and reliable under high pressure environments, and at the same time, reducing the risk of damage to the injection mechanism caused by these unexpected factors.

[0017] (2) In the present invention, by providing a transmission mechanism, the second limiting rod drives the fifth bevel gear to rotate through the fourth bevel gear, and then drives the threaded rod to rotate inside the concave seat, thereby providing power for the lifting mechanism and reducing the use of the power system.

[0018] (3) In the present invention, by providing a lifting mechanism, the injection mechanism and the transmission mechanism can be driven to move up and down together, and the injection mechanism drives the electric pre-plastic device to move up and down inside the sound insulation and heat dissipation box through the support frame, and the injection mechanism will drive the injection head to move up and down together, and the injection head will move up and down inside the elliptical hole, so that the height of the injection mechanism can be adjusted, thereby increasing the breadth and practicality of the box-type injection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0020] Figure 2 It is a partial half-section structural schematic diagram of the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0021] Figure 3 It is a partial structural schematic diagram of the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the injection mechanism and the transmission mechanism in the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0023] Figure 5 It is a partial structural schematic diagram of the injection mechanism in the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the lifting mechanism in the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0025] Figure 7 It is a partial structural schematic diagram of the transmission mechanism in the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the electric telescopic rod and the connecting plate in the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0027] Fig. 9 It is a partial structural schematic diagram of the high-efficiency and energy-saving electric pre-plastic box-type injection structure of the present invention.

[0028] In the figure: 1. sound insulation heat dissipation box; 11. feed hopper; 12. elliptical hole; 13. electric pre-plastic device; 14. feed pipe; 15. feed pipe; 16. support frame; 17. shock absorption mechanism; 2. injection mechanism; 21. square frame; 22. drive motor; 23. injection head; 24. injection tube; 241. triangular support frame; 25. stable seat; 26. special-shaped seat; 27. first rotating rod; 28. second rotating rod; 29. ​​first transmission rod; 210. first bevel gear; 211. curved rod; 212. pinion; 213, second bevel gear; 214, large gear; 215, piston; 216, crank; 217, transmission gear; 218, driven gear; 3, transmission mechanism; 31, concave seat; 32, fixing plate; 33, first limiting rod; 34, third bevel gear; 35, electric telescopic rod; 36, second limiting rod; 37, fourth bevel gear; 38, limiting cylinder; 39, connecting plate; 4, lifting mechanism; 41, threaded seat; 42, sliding seat; 43, guide rail; 44, threaded rod; 45, fifth bevel gear. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] Reference Figure 1-Figure 9 As shown: an efficient and energy-saving electric pre-plasticizing box-type injection structure, comprising an electric pre-plasticizing device 13 and a supporting frame 16, a sound insulation and heat dissipation box 1 is arranged on the outer wall of the electric pre-plasticizing device 13, a feeding pipe 14 is fixedly installed at the lower end outlet of the electric pre-plasticizing device 13, an injection mechanism 2 is arranged inside the sound insulation and heat dissipation box 1, a transmission mechanism 3 is arranged on one side of the injection mechanism 2, and a lifting mechanism 4 is arranged inside the sound insulation and heat dissipation box 1.

[0032] The injection mechanism 2 includes a frame 21, a drive motor 22, an injection tube 24 and two sets of cranks 216. An injection head 23 is fixedly installed at one end of the injection tube 24. A stabilizing seat 25 is fixedly installed on the inner wall of the frame 21. A special-shaped seat 26 is fixedly installed on the upper end of the frame 21. A first rotating rod 27 is rotatably installed inside the frame 21. A second rotating rod 28 is rotatably installed inside the frame 21. A first transmission rod 29 is rotatably installed through one end of the stabilizing seat 25. A first bevel gear is fixedly installed on the outer wall of the first transmission rod 29. 210, a crank rod 211 is rotatably mounted in the middle of the two cranks 216, a small gear 212 is fixedly mounted on the outer wall of the first rotating rod 27 and the second rotating rod 28, a second bevel gear 213 is fixedly mounted on the outer wall of the second rotating rod 28, a large gear 214 is fixedly mounted on the outer wall of the first rotating rod 27 and the second rotating rod 28, a piston 215 is rotatably mounted on the other end of the crank rod 211, a transmission gear 217 is provided on the upper end of the frame 21, a driven gear 218 is rotatably mounted on the upper end of the frame 21, and the first transmission rod One end of the first rotating rod 27 penetrates the inner wall of the square frame 21 and is fixed to the output end of the driving motor 22. A part of the piston 215 is movably installed inside the injection tube 24. The upper end of the first rotating rod 27 penetrates the upper end of the square frame 21 and is fixed to the lower end of the transmission gear 217. The first bevel gear 210 is meshed with the second bevel gear 213. The lower end protrusion of one set of cranks 216 is fixed to the upper end of the driven gear 218, and the upper end protrusion of the other set of cranks 216 is rotatably installed inside the special-shaped seat 26. The driven gear 217 is meshed with the driven gear 218, the feeding tube 15 is installed through the upper end of the injection tube 24, the other end of the square frame 21 is fixedly installed with a triangular support 241, the injection tube 24 is fixedly installed on the upper end of the triangular support 241, one group of small gears 212 is meshed with one group of large gears 214, and the other group of small gears 212 is meshed with the other group of large gears 214. A shock absorbing mechanism 17 is fixedly installed at one end of the square frame 21, and the lower end of the drive motor 22 is fixed to the upper part of the shock absorbing mechanism 17.

[0033] A feed hopper 11 is provided at the upper end of the soundproof heat dissipation box 1, an elliptical hole 12 is penetrated at one end of the soundproof heat dissipation box 1, the lower end of the electric pre-plasticizing device 13 is fixed to the upper end of the support frame 16, the lower end of the support frame 16 is fixed to the upper end of the square frame 21, one end of the injection head 23 passes through the inside of the elliptical hole 12 and is located on the outside of the soundproof heat dissipation box 1, the lower end of the feed hopper 11 passes through the upper end of the soundproof heat dissipation box 1, and is fixed to the feed port of the electric pre-plasticizing device 13, and the outer wall of the discharge pipe 14 is fixed to the inner wall of the feed pipe 15.

[0034] In this embodiment, by starting the drive motor 22, the output end of the drive motor 22 drives the first transmission rod 29 to rotate inside the frame 21 and the stable seat 25, and at the same time, the first transmission rod 29 drives the first bevel gear 210 to rotate. Under the meshing cooperation between the first bevel gear 210 and the second bevel gear 213, the first bevel gear 210 drives the second rotating rod 28 to rotate through the second bevel gear 213, and the second rotating rod 28 rotates in the middle of the frame 21. At the same time, the second rotating rod 28 drives one group of small gears 212 and one group of large gears 214 of the outer wall to rotate. Under the meshing cooperation of one group of small gears 212 and another group of large gears 214, under the meshing cooperation of one group of large gears 214 and another group of small gears 212, the first small gear 212 and one group of large gears 214 respectively drive the other group of large gears 214 and another group of small gears 212 to rotate, and the other group of large gears 214 and another group of small gears 212 drive the first rotating rod 27 to rotate, so that it rotates inside the frame 21, and at the same time, the first rotating rod 27 drives the transmission gear 217 to rotate, which can provide a large torque for the transmission gear 217. Under the meshing cooperation of the gear 217 and the driven gear 218, the transmission gear 217 drives the driven gear 218 to rotate at the upper end of the frame 21, and the driven gear 218 drives the crank 211 to rotate through one set of cranks 216, and the crank 211 drives the other set of cranks 216 to rotate at the top of the inner part of the special-shaped seat 26, which can increase the stability of the crank 211 when it moves. At the same time, by sliding the piston 215 inside the injection tube 24, the crank 211 will drive the piston 215 to move left and right inside the injection tube 24, and the piston 215 will push the injection tube 2 4, and push the plastic raw material inside the injection tube 24 to the inside of the injection head 23 until it enters the inside of the mold. Under the rotation of one of the cranks 216, one of the cranks 216 drives the piston 215 to repeatedly move left and right inside the injection tube 24 through the crank rod 211, which can repeatedly push the plastic raw material to move inside the injection tube 24, and then facilitate the injection molding of the plastic raw material, so that a large torque can be provided in a short time to quickly push the plastic raw material for injection molding, thereby reducing the injection molding cycle and improving production efficiency.

[0035] The stabilizing seat 25 is set so that when the first transmission rod 29 rotates inside the stabilizing seat 25, the stabilizing seat 25 can provide support for the first transmission rod 29 so that it can rotate stably during rotation. By installing the tripod support 241 at the other end of the frame 21 and the injection tube 24 at the upper end of the tripod support 241, the injection tube 24 can be supported.

[0036] With the cooperation of the electric pre-plasticizing device 13, the discharge pipe 14 and the feed pipe 15, the electric pre-plasticizing device 13 will process the incoming clinker particles, and input the processed plastic raw materials into the discharge pipe 14, and then enter the injection tube 24 through the feed pipe 15, so as to provide plastic raw materials to the injection tube 24 so as to continuously perform injection molding on the plastic raw materials.

[0037] When the piston 215 is retracted inside the injection tube 24, the outer wall of the piston 215 will move away from directly below the feed tube 15. At this time, the plastic raw material will enter the injection tube 24. When the piston 215 is pushed inside the injection tube 24, the piston 215 will push the plastic raw material to move inside the injection tube 24, and at the same time the piston 215 will block the feeding of the feed tube 15.

[0038] By providing a soundproof heat dissipation box 1, and wrapping all structures inside the soundproof heat dissipation box 1, it can effectively resist various forces generated during operation and avoid deformation of the injection mechanism 2, thereby ensuring the accuracy and stability of the injection process. It can ensure that the equipment remains stable and reliable in a high-pressure environment. At the same time, it can reduce the risk of damage to the injection mechanism 2 caused by these unexpected factors.

[0039] The setting of the shock absorbing mechanism 17 can provide a shock absorbing effect for the driving motor 22 , and the setting of the feed hopper 11 can conveniently provide plastic particles to the interior of the electric pre-plasticizing device 13 so that the electric pre-plasticizing device 13 can process the plastic particles.

[0040] Embodiment 2: according to Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the transmission mechanism 3 includes a concave seat 31, and the inner walls of the square frame 21 and the concave seat 31 are fixedly installed with a fixing plate 32, one end of one group of fixing plates 32 is penetrated and rotatably installed with a first limiting rod 33, and the outer wall of the first limiting rod 33 is fixedly installed with a third bevel gear 34, one end of one group of fixing plates 32 is penetrated and installed with an electric telescopic rod 35, and one end of another group of fixing plates 32 is penetrated and installed with a second limiting rod 36, and the outer wall of the second limiting rod 36 is fixedly installed with a fourth bevel gear 37, and the outer wall of the first limiting rod 33 is slidably installed with a limiting cylinder 38, and the outer wall of the limiting cylinder 38 is fixedly installed with a connecting plate 39, one side of the concave seat 31 is fixed to one side of the square frame 21, and the protruding end of the electric telescopic rod 35 is fixed to one side of the connecting plate 39, and the third bevel gear 34 is meshed with the second bevel gear 213.

[0041] In this embodiment, by starting the electric telescopic rod 35, the extended end of the electric telescopic rod 35 pushes the connecting plate 39 to move, and the connecting plate 39 drives the limiting cylinder 38 to move on the first limiting rod 33 until a part of the limiting cylinder 38 moves to the outer wall of the second limiting rod 36, so that the first limiting rod 33 is connected to the second limiting rod 36 through the limiting cylinder 38, which facilitates the first limiting rod 33 to drive the second limiting rod 36 to rotate through the limiting cylinder 38. When the second bevel gear 213 rotates, the second bevel gear 213 will drive the third bevel gear 34 to rotate, and The third bevel gear 34 drives the first limiting rod 33 to rotate inside one group of fixed plates 32, and the first limiting rod 33 drives the second limiting rod 36 to rotate through the limiting cylinder 38. At the same time, the limiting cylinder 38 rotates inside the connecting plate 39, and the second limiting rod 36 rotates inside the other group of fixed plates 32. The second limiting rod 36 drives the fifth bevel gear 45 to rotate through the fourth bevel gear 37, and then can drive the threaded rod 44 to rotate inside the concave seat 31, thereby providing power for the lifting mechanism 4 and reducing the use of the power system.

[0042] By setting two groups of fixing plates 32, the first limiting rod 33 and the second limiting rod 36 rotate inside the two groups of fixing plates 32 respectively, so that the two groups of fixing plates 32 can provide support for the first limiting rod 33 and the second limiting rod 36, thereby increasing the stability of the first limiting rod 33 and the second limiting rod 36 when rotating.

[0043] Embodiment three: according to Figure 2 , Figure 3 , Figure 6 and Fig. 9 As shown, the lifting mechanism 4 includes a threaded seat 41, four sets of guide rails 43 are fixedly installed inside the sound insulation and heat dissipation box 1, and two sets of slide seats 42 are slidably installed on the outer walls of the four sets of guide rails 43. The internal thread of the threaded seat 41 is connected with a threaded rod 44, and the outer wall of the threaded rod 44 is fixedly installed with a fifth bevel gear 45. One side of the threaded seat 41 is fixed to the inner wall of the sound insulation and heat dissipation box 1, and the upper end of the threaded rod 44 is rotatably installed inside the concave seat 31. The fifth bevel gear 45 is meshed with the fourth bevel gear 37, and one end of the eight sets of slide seats 42 is respectively fixed to the square frame 21, one side of the concave seat 31 and both sides of the support frame 16.

[0044] In this embodiment, when the threaded rod 44 rotates, the threaded rod 44 will rotate inside the threaded seat 41. Since the threaded seat 41 is fixed to the inner wall of the sound insulation and heat dissipation box 1, the threaded rod 44 moves up and down inside the threaded seat 41, and the threaded rod 44 drives the square frame 21 to move up and down through the concave seat 31, thereby driving the injection mechanism 2 and the transmission mechanism 3 to move up and down together. The injection mechanism 2 drives the electric pre-plastic device 13 to move up and down inside the sound insulation and heat dissipation box 1 through the support frame 16, and the injection mechanism 2 will drive the injection head 23 to move up and down together. The injection head 23 will move up and down inside the elliptical hole 12, so that the height of the injection mechanism 2 can be adjusted, thereby increasing the breadth and practicality of the box-type injection structure.

[0045] When the concave seat 31, the square frame 21 and the support frame 16 move up and down, the concave seat 31, the square frame 21 and the support frame 16 will drive the eight groups of slides 42 to move up and down together, and the eight groups of slides 42 move up and down on the outer walls of the four groups of guide rails 43 respectively, thereby guiding the concave seat 31, the square frame 21 and the support frame 16, thereby increasing the stability of the concave seat 31, the square frame 21 and the support frame 16 when moving, and increasing the stability of the injection mechanism 2 and the transmission mechanism 3 when moving up and down.

[0046] The use method and working principle of the device are as follows: first, according to the height of the forming device, by starting the electric telescopic rod 35, the extended end of the electric telescopic rod 35 pushes the connecting plate 39 to move, and the connecting plate 39 drives the limiting cylinder 38 to move on the first limiting rod 33, until a part of the limiting cylinder 38 moves to the outer wall of the second limiting rod 36, so that the first limiting rod 33 is connected to the second limiting rod 36 through the limiting cylinder 38, so that the first limiting rod 33 drives the second limiting rod 36 to rotate through the limiting cylinder 38, and then the driving motor 22 is started to rotate, and the output end of the driving motor 22 drives the first bevel gear 210 to rotate through the first transmission rod 29, and the second limiting rod 36 is connected to the second limiting rod 36 through the limiting cylinder 38. A bevel gear 210 drives the second rotating rod 28 to rotate inside the frame 21 through the second bevel gear 213, and the second bevel gear 213 drives the third bevel gear 34 to rotate, and the third bevel gear 34 drives the first limiting rod 33 to rotate inside one group of fixed plates 32, and the first limiting rod 33 drives the second limiting rod 36 to rotate through the limiting cylinder 38, and at the same time, the limiting cylinder 38 rotates inside the connecting plate 39, and the second limiting rod 36 rotates inside the other group of fixed plates 32, and the second limiting rod 36 drives the fifth bevel gear 45 to rotate through the fourth bevel gear 37, which can drive the threaded rod 44 to rotate inside the concave seat 31.

[0047] Then, the threaded rod 44 will rotate inside the threaded seat 41. Since the threaded seat 41 is fixed to the inner wall of the sound insulation and heat dissipation box 1, the threaded rod 44 moves up and down inside the threaded seat 41, and the threaded rod 44 drives the frame 21 to move up and down through the concave seat 31, thereby driving the injection mechanism 2 and the transmission mechanism 3 to move up and down together. The injection mechanism 2 drives the electric pre-plastic device 13 to move up and down inside the sound insulation and heat dissipation box 1 through the support frame 16, and the injection mechanism 2 will drive the injection head 23 to move up and down together. The injection head 23 will move up and down inside the elliptical hole 12, and the height of the injection mechanism 2 can be adjusted until the injection mechanism 2 is adjusted to the same height as the molding device.

[0048] Afterwards, plastic particles are added into the feed hopper 11 so that they fall into the electric pre-plasticizing device 13 , and then the electric pre-plasticizing device 13 is controlled to process the incoming plastic particles, and the processed plastic raw materials are introduced into the discharge pipe 14 , and then introduced into the injection tube 24 through the feed pipe 15 .

[0049] Finally, by starting the drive motor 22, the output end of the drive motor 22 drives the first transmission rod 29 to rotate inside the frame 21 and the stable seat 25, and at the same time, the first transmission rod 29 drives the first bevel gear 210 to rotate, and the first bevel gear 210 drives the second rotating rod 28 to rotate through the second bevel gear 213, and the second rotating rod 28 rotates in the middle of the frame 21, and at the same time, the second rotating rod 28 drives one group of small gears 212 and one group of large gears 214 of the outer wall to rotate, wherein the first small gear 212 and one group of large gears 214 respectively drive another group of large gears 214 and another group of small gears 212 to rotate, and the other group of large gears 214 and another group of small gears 212 drive the first rotating rod 27 to rotate, so that it rotates inside the frame 21, and at the same time, the first rotating rod 27 drives the transmission gear 217 to rotate, which can provide a large torque for the transmission gear 217. The transmission gear 217 drives The driven gear 218 rotates at the upper end of the square frame 21, and the driven gear 218 drives the crank rod 211 to rotate through one set of cranks 216, and the crank rod 211 drives the other set of cranks 216 to rotate at the internal top of the special-shaped seat 26, which can increase the stability of the crank rod 211 during movement. At the same time, by sliding the piston 215 inside the injection tube 24, the crank rod 211 will drive the piston 215 to move left and right inside the injection tube 24, and the piston 215 will push the plastic raw material inside the injection tube 24 to move, and push the plastic raw material inside the injection tube 24 to the inside of the injection head 23 until it enters the inside of the mold. Under the rotation of one set of cranks 216, one set of cranks 216 drives the piston 215 to move left and right repeatedly inside the injection tube 24 through the crank rod 211, which can repeatedly push the plastic raw material to move inside the injection tube 24, making it convenient to inject the plastic raw material.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient and energy-saving electric pre-plasticizing box-type injection structure, comprising an electric pre-plasticizing device (13) and a supporting frame (16), characterized in that: The outer wall of the electric pre-plasticizing device (13) is provided with a soundproof heat dissipation box (1), a lower end outlet of the electric pre-plasticizing device (13) is fixedly provided with a feed pipe (14), an injection mechanism (2) is provided inside the soundproof heat dissipation box (1), a transmission mechanism (3) is provided on one side of the injection mechanism (2), and a lifting mechanism (4) is provided inside the soundproof heat dissipation box (1); The injection mechanism (2) comprises a square frame (21), a drive motor (22), an injection tube (24) and two groups of cranks (216); an injection head (23) is fixedly mounted on one end of the injection tube (24); a stabilizing seat (25) is fixedly mounted on the inner wall of the square frame (21); a special-shaped seat (26) is fixedly mounted on the upper end of the frame (21); a first rotating rod (27) is rotatably mounted inside the frame (21); a second rotating rod (28) is rotatably mounted inside the frame (21); a first transmission rod (29) is rotatably mounted on one end of the stabilizing seat (25); a first bevel gear (210) is fixedly mounted on the outer wall of the first transmission rod (29); a crank rod (211) is rotatably mounted between the two groups of cranks (216); and pinions (211) are fixedly mounted on the outer walls of both the first rotating rod (27) and the second rotating rod (28). 2), a second bevel gear (213) is fixedly mounted on the outer wall of the second rotating rod (28), a large gear (214) is fixedly mounted on the outer walls of the first rotating rod (27) and the second rotating rod (28), a piston (215) is rotatably mounted on the other end of the curved rod (211), a transmission gear (217) is provided at the upper end of the square frame (21), a driven gear (218) is rotatably mounted on the upper end of the square frame (21), one end of the first transmission rod (29) passes through the inner wall of the square frame (21) and is fixed to the output end of the driving motor (22), a part of the piston (215) is movably mounted inside the injection tube (24), the upper end of the first rotating rod (27) passes through the upper end of the square frame (21) and is fixed to the lower end of the transmission gear (217), and the first bevel gear (210) is meshed with the second bevel gear (213).

2. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 1 is characterized in that: The transmission mechanism (3) comprises a concave seat (31), the inner walls of the square frame (21) and the concave seat (31) are both fixedly mounted with a fixing plate (32), one end of one group of the fixing plates (32) is penetrated by a first limiting rod (33) rotatably mounted, and the outer wall of the first limiting rod (33) is fixedly mounted with a third bevel gear (34), one end of one group of the fixing plates (32) is penetrated by an electric telescopic rod (35), one end of another group of the fixing plates (32) is penetrated by a second limiting rod (36), the outer wall of the second limiting rod (36) is fixedly mounted with a fourth bevel gear (37), the outer wall of the first limiting rod (33) is slidably mounted with a limiting cylinder (38), and the outer wall of the limiting cylinder (38) is fixedly mounted with a connecting plate (39).

3. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 1 is characterized in that: The lower end protrusions of one group of the cranks (216) are fixed to the upper end of the driven gear (218), and the upper end protrusions of the other group of the cranks (216) are rotatably mounted inside the special-shaped seat (26), and the transmission gear (217) is meshed with the driven gear (218).

4. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 3 is characterized in that: A feed pipe (15) is installed through the upper end of the injection tube (24), a triangular support frame (241) is fixedly installed on the other end of the square frame (21), and the injection tube (24) is fixedly installed on the upper end of the triangular support frame (241).

5. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 4 is characterized in that: One group of the small gears (212) meshes with one group of the large gears (214), and another group of the small gears (212) meshes with another group of the large gears (214). A shock absorbing mechanism (17) is fixedly mounted on one end of the square frame (21), and a lower end of the driving motor (22) is fixed to an upper portion of the shock absorbing mechanism (17).

6. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 2 is characterized in that: The lifting mechanism (4) comprises a threaded seat (41), four groups of guide rails (43) are fixedly installed inside the sound insulation heat dissipation box (1), two groups of sliding seats (42) are slidably installed on the outer walls of the four groups of guide rails (43), the inner thread of the threaded seat (41) is connected to a threaded rod (44), and a fifth bevel gear (45) is fixedly installed on the outer wall of the threaded rod (44).

7. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 2 is characterized in that: One side of the concave seat (31) is fixed to one side of the square frame (21), the extended end of the electric telescopic rod (35) is fixed to one side of the connecting plate (39), and the third bevel gear (34) is meshed with the second bevel gear (213).

8. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 6 is characterized in that: One side of the threaded seat (41) is fixed to the inner wall of the sound insulation heat dissipation box (1), the upper end of the threaded rod (44) is rotatably mounted inside the concave seat (31), the fifth bevel gear (45) is meshed with the fourth bevel gear (37), and one end of the eight groups of sliding seats (42) are respectively fixed to the square frame (21), one side of the concave seat (31) and both sides of the support frame (16).

9. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 3 is characterized in that: A feed hopper (11) is provided at the upper end of the soundproof heat dissipation box (1), an elliptical hole (12) is provided through one end of the soundproof heat dissipation box (1), the lower end of the electric pre-plasticizing device (13) is fixed to the upper end of the support frame (16), and the lower end of the support frame (16) is fixed to the upper end of the square frame (21).

10. The high-efficiency and energy-saving electric pre-plastic box-type injection structure according to claim 9 is characterized in that: One end of the injection head (23) passes through the interior of the elliptical hole (12) and is located outside the soundproof heat dissipation box (1); the lower end of the feed hopper (11) passes through the upper end of the soundproof heat dissipation box (1) and is fixed to the feed port of the electric pre-plasticizing device (13); and the outer wall of the feed pipe (14) is fixed to the inner wall of the feed pipe (15).

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