Plastic waste recycling injection molding device for environment-friendly tableware production

Abstract

The invention relates to the technical field of environment-friendly tableware injection molding devices, and discloses an environment-friendly tableware production injection molding device capable of recycling plastic waste, the environment-friendly tableware production injection molding device comprises a fixing frame, the inner wall of the fixing frame is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a mold pressing plate, and the front side of the mold pressing plate is fixedly connected with a moving column; a movable column is fixedly connected to the front side of the fixed frame, a fixed plate is fixedly connected to the front side of the movable column, a fixed mold shell is fixedly connected to the inner wall of the fixed frame, a sliding column is slidably connected to the inner wall of the fixed mold shell through a spring, a pressing plate is fixedly connected to the front side of the sliding column, and a push plate is fixedly connected to the rear side of the sliding column. The hydraulic cylinder can drive the push plate to move to push out the injection-molded mold in the fixed mold shell, the dependence on a heating system can be reduced by assisting in pushing out the mold, and therefore energy consumption is reduced, and it is further ensured that the shape of a product is kept complete in the demolding process.

Description

Technical Field

[0001] The invention relates to the technical field of environmentally friendly tableware injection molding devices, in particular to an injection molding device for producing environmentally friendly tableware by recycling plastic waste. Background Art

[0002] The shortcomings of existing technologies in waste compatibility, energy consumption control, and molding accuracy have driven the development of devices towards efficient pretreatment, precision plasticization, and intelligent control to meet the industrialization needs of environmentally friendly tableware production.

[0003] The patent with publication number CN215320414U relates to an injection molding device for producing polymer degradable tableware, comprising a base, a rotating seat fixedly connected to the surface of the base, a worm wheel and a worm being rotatably connected inside the rotating seat, the worm wheel and the worm being meshed, a chassis fixedly connected to the surface of the base, a second motor fixedly installed inside the chassis, an output end of the second motor fixedly connected to one end of the worm, a screw threaded through the central axis of the worm wheel, a connecting block fixedly connected to the surface of the base, an injection molding tube fixedly connected to the surface of the connecting block, The screw is fixedly connected to the third motor, and the output end of the third motor is fixedly connected to the feeding screw. The cooperation of the provided cylinder, push rod, first rotating rod, second rotating rod, third rotating rod and sliding rod can stably drive the movable mold to move back and forth, ensure the accuracy during molding, and avoid deformation of the mold. Although the device can facilitate the ejection of the injection mold, the device is likely to cause the injection rate to be too slow during injection molding, and it is difficult to ensure the overall injection molding efficiency of the equipment. Therefore, an injection molding device for environmentally friendly tableware production that recycles plastic waste is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an injection molding device for producing environmentally friendly tableware that recycles plastic waste in response to the above-mentioned deficiencies in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an injection molding device for producing environmentally friendly tableware for recycling plastic waste, comprising a fixed frame, the top of the fixed frame is fixedly connected to a crushing shell, the inner wall of the crushing shell is installed with a crushing roller assembly, the right side of the crushing roller assembly is fixedly connected to a pulley group 1, the inner wall of the fixed frame is fixedly connected to a hot melt machine, the inner wall of the hot melt machine is fixedly connected to an injection molding pipe, the inner wall of the fixed frame is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a mold pressing plate, the front side of the mold pressing plate is fixedly connected to a moving column, the front side of the moving column is fixedly connected to a fixed plate, and the inner wall of the fixed frame is fixedly connected to A fixed mold shell, the inner wall of the fixed mold shell is slidably connected to a sliding column through a spring, the front side of the sliding column is fixedly connected to a pressure plate, and the rear side of the sliding column is fixedly connected to a push plate. When demoulding, the push plate can be driven by a hydraulic cylinder to move the mold that has been injected inside the fixed mold shell to push out the mold. Auxiliary mold ejection can reduce dependence on the heating system, thereby reducing energy consumption, accurately controlling the demoulding action, and ensuring that the product maintains its shape intact during the demoulding process, thereby improving product quality; the inner wall of the fixed frame is fixedly connected to a cooling box, and the inner wall of the cooling box is fixedly connected to a connecting pipe. The inner wall of the fixed frame is fixedly connected to the cooling box, and the inner wall of the cooling box is fixed It is connected with an extraction pipe; when the liquid flows into the middle of the fixed mold shell and the mold pressure plate through the injection pipe, the cooling liquid can be recycled through the connecting pipe and the extraction pipe, which can more effectively take away the heat in the mold, thereby accelerating the cooling speed, shortening the entire injection molding cycle, and helping to avoid deformation of the product caused by uneven cooling, thereby improving product quality; the inner wall of the crushing shell is provided with a dredging mechanism to prevent the equipment from being broken and stuck, and the inner wall of the dredging mechanism is provided with an anti-stuck mechanism to prevent it from being stuck during screening; the left side of the crushing shell is fixedly connected to a motor, and the output end of the motor is fixedly connected to the left side of the crushing roller assembly. The hot melt machine is used to crush small particles of plastic fragments Hot melting is carried out, the bottom of the injection tube is fixedly connected to the inner wall of the fixed mold shell, and the inner wall of the fixed mold shell is provided with a mold groove for injection molding, the push plate is slidably connected to the inner wall of the fixed mold shell, and the push plate is used to push out the injected mold, the circumferential surface of the movable column is slidably connected to the inner wall of the fixed mold shell, the rear side of the fixed mold shell is in contact with the front side of the mold pressing plate, the inner wall of the mold pressing plate is provided with a liquid storage tank for storing coolant, the front side of the connecting tube is fixedly connected to the inner wall of the mold pressing plate, the front side of the extraction tube is fixedly connected to the inner wall of the mold pressing plate, the inner wall of the cooling box stores coolant, and the fixed plate moves on the motion trajectory of the pressing plate The cam is secured to the rear of the mold by means of a spring which engages with the front of the mold and engages with the cam on the sidewall of the mold support member so that the cam can slide and slide back and forth when the mold is in a closed position. The wall is fixedly connected to a limiting column, and the inner wall of the crushing shell is fixedly connected to a screening plate. When the crushed material is crushed, the crushing roller assembly drives the dredging rod to move back and forth to dredge the gap in the middle of the crushing roller assembly, so as to avoid larger plastics from being stuck in the middle and prevent plastic fragments from accumulating between the roller gaps, thereby avoiding blockage and ensuring that the crusher can operate continuously and efficiently, and further reducing the time for mold injection; the two sides of the sliding column are fixedly connected to the sliding rod, the limiting plate contacts the inner wall of the C-shaped rod, the card plate contacts the inner wall of the C-shaped rod, the side of the limiting plate away from the fixed mold shell contacts the limiting plate, the circumferential surface of the limiting column is rotatably connected to the inner wall of the crushing shell, the inner wall of the dredging rod contacts the circumferential surface of the limiting column, and the screening plate is used to screen plastic particles of different sizes.

[0006] Preferably, the anti-stuck mechanism includes a Y-shaped rod, the inner wall of the Y-shaped rod is rotatably connected to a brush cylinder, and the circumferential surface of the brush cylinder is fixedly connected to a rubber wheel. When the crushed particles are screened, the movement of the dredging rod will drive the brush cylinder to move to prevent the particles from accumulating on the top of the screening plate, preventing the crushed particles from not being screened. Large particles are easily accumulated in the heating system, causing blockage, which can reduce the overload of the heating system, thereby reducing energy consumption and improving energy utilization efficiency; the circumferential surface of the reciprocating screw is fixedly connected to a cam, and the L-shaped rack is slidably connected to the inner wall of the crushing shell through a spring, the inner wall of the crushing shell is rotatably connected to a gear, and the inner wall of the gear is rotatably connected to a flip plate. While cleaning, the reciprocating screw drives the flip plate to flip, so that the plastic particles inside the crushing shell will be flipped through the flip plate. Indirectly enter the interior of the hot melt machine for hot melting, avoiding blockage of the equipment caused by too much entry at one time, and avoiding local overheating of the plastic particles caused by direct heating. Indirect heating can distribute heat more evenly, reduce the degradation of material properties caused by overheating, and improve the overall quality of the mold after injection molding is completed; the bottom of the dredging rod is fixedly connected to the top of the Y-shaped rod, the circumferential surface of the brush cylinder contacts the top of the screen plate, and the brush cylinder is used to clean up the accumulated plastic particles, the circumferential surface of the rubber wheel contacts the top of the screen plate, and the circumferential surface of the rubber wheel is sleeved with a rubber ring to increase friction, the circumferential surface of the cam contacts the top of the L-shaped rack, and the L-shaped rack will move back and forth through the irregular circumferential surface of the cam, and the inner wall of the L-shaped rack is engaged with the circumferential surface of the gear.

[0007] The present invention adopts the above technical solution, which can bring the following beneficial effects: 1. The invention relates to an injection molding device for producing environmentally friendly tableware by recycling plastic waste. The device cooperates with a fixed frame, a crushing shell, a crushing roller assembly, a pulley group, a hot melt machine, a hydraulic cylinder, a mold pressing plate, a fixed mold shell, a sliding column, a push plate, a pressure plate, a movable column, a fixed plate, an injection molding tube, a cooling box, a connecting pipe, and an extraction pipe. When demolding, the hydraulic cylinder can drive the push plate to move and push out the mold that has been injected inside the fixed mold shell. The auxiliary mold ejection can reduce the dependence on the heating system, thereby reducing energy consumption, accurately controlling the demolding action, and ensuring that the product maintains its shape intact during the demolding process, thereby improving product quality. When the liquid flows into the middle of the fixed mold shell and the mold pressing plate through the injection molding tube, the coolant can be recycled through the connecting pipe and the extraction pipe, which can more effectively take away the heat in the mold, thereby accelerating the cooling speed, shortening the entire injection molding cycle, and helping to avoid product deformation caused by uneven cooling, thereby improving product quality.

[0008] 2. This injection molding device for producing environmentally friendly tableware that recycles plastic waste, through the coordinated operation between the C-shaped rod, sliding rod, limit plate, and clamping plate, when the fixed mold shell and the mold pressure plate are closed, the limit plate cooperates with the sliding rod to self-lock the sliding column and the fixed mold shell, which can effectively prevent the mold from opening or sliding due to excessive injection pressure during the injection molding process, thereby ensuring the stability of the mold and the molding quality of the product, reducing the dependence on the clamping force of the injection molding machine, and reducing the overall production cost.

[0009] 3. This injection molding device for producing environmentally friendly tableware that recycles plastic waste, through the coordinated operation between the pulley group 2, the reciprocating screw, the dredging rod, and the limit column, when the crushed material is crushed, the dredging rod is driven to move back and forth by the crushing roller assembly to dredge the gap in the middle of the crushing roller assembly, thereby preventing larger plastics from being stuck in the middle and preventing plastic fragments from accumulating between the roller gaps, thereby avoiding blockage and ensuring that the crusher can operate continuously and efficiently, and further reducing the time for injection molding of the mold.

[0010] 4. This injection molding device for producing environmentally friendly tableware that recycles plastic waste, through the coordinated operation between the Y-shaped rod, brush cylinder, and rubber wheel, when screening the crushed particles, the movement of the dredging rod will drive the brush cylinder to move to prevent the particles from accumulating on the top of the screening plate, preventing the crushed particles from not being screened and large particles from easily accumulating in the heating system, causing blockage, which can reduce the overload of the heating system, thereby reducing energy consumption and improving energy utilization efficiency.

[0011] 5. This injection molding device for producing environmentally friendly tableware that recycles plastic waste operates through the coordinated operation of a cam, an L-shaped rack, a gear, and a flip plate. While cleaning, the reciprocating screw drives the flip plate to flip, so that the plastic particles inside the crushed shell will indirectly enter the hot melt machine through the flipping of the flip plate for hot melting, avoiding excessive entry at one time and causing equipment blockage, and avoiding direct heating that may cause local overheating of the plastic particles. Indirect heating can distribute heat more evenly, reduce the degradation of material properties caused by overheating, and improve the overall quality of the mold after the injection molding is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic structural diagram of the hot melt machine of the present invention; Figure 3 This is a schematic diagram of the mold pressing plate structure of the present invention; Figure 4 This is a schematic diagram of the card structure of the present invention; Figure 5 This is a schematic diagram of the dredging rod structure of the present invention; Figure 6This is a schematic diagram of the brush barrel structure of the present invention; Figure 7 For the present invention Figure 6 A magnified view of the structure in the middle.

[0013] In the figure: 1. Fixed frame; 2. Crushing shell; 3. Crushing roller assembly; 4. Pulley group 1; 5. Hot melt machine; 6. Dredging mechanism; 61. C-shaped rod; 62. Sliding rod; 63. Limiting plate; 64. Card plate; 65. Pulley group 2; 66. Reciprocating screw; 67. Dredging rod; 68. Limiting column; 69. Screening plate; 7. Anti-stuck mechanism; 71. Y-shaped rod; 72. Brush cylinder; 73. Rubber wheel; 74. Cam; 75. L-shaped rack; 76. Gear; 77. Flip plate; 8. Hydraulic cylinder; 9. Mold pressing plate; 10. Fixed mold shell; 11. Sliding column; 12. Push plate; 13. Pressing plate; 14. Moving column; 15. Fixed plate; 16. Injection tube; 17. Cooling box; 18. Connecting tube; 19. Extraction tube. DETAILED DESCRIPTION

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 making creative efforts are within the scope of protection of the present invention.

[0015] See also Figure 1-Figure 7 One embodiment of the present invention is: an injection molding device for producing environmentally friendly tableware for recycling plastic waste, comprising a fixed frame 1, a crushing shell 2 is fixedly connected to the top of the fixed frame 1, a crushing roller assembly 3 is installed on the inner wall of the crushing shell 2, a pulley group 4 is fixedly connected to the right side of the crushing roller assembly 3, a hot melt machine 5 is fixedly connected to the inner wall of the fixed frame 1, an injection molding pipe 16 is fixedly connected to the inner wall of the hot melt machine 5, a hydraulic cylinder 8 is fixedly connected to the inner wall of the fixed frame 1, an output end of the hydraulic cylinder 8 is fixedly connected to a mold pressing plate 9, a front side of the mold pressing plate 9 is fixedly connected to a moving column 14, a front side of the moving column 14 is fixedly connected to a fixed plate 15, an inner wall of the fixed frame 1 is fixedly connected to a fixed mold shell 10, an inner wall of the fixed mold shell 10 is slidably connected to a sliding column 11 through a spring, a front side of the sliding column 11 is fixedly connected to a pressing plate 13, and a rear side of the sliding column 11 is fixedly connected to a push plate 12; After the waste plastics are moved and processed, they are put into the crushing shell 2 by machinery or staff. At this time, the motor is started to work. The motor drives the crushing roller assembly 3 to work through the output end. The front crushing roller assembly 3 rotates through the front pulley of the pulley group 4. The front pulley of the pulley group 4 rotates through the belt to drive the rear pulley to rotate. The rear pulley drives the crushing roller assembly 3 to rotate, so that the crushing roller assembly 3 crushes the incoming plastic. The crushed particles enter the hot melt machine 5 for hot melting. When the hot melt liquid is melted, it will flow into the fixed mold shell 10 through the injection tube 16 again. When the liquid enters the fixed mold shell 10 and cools and contacts well, The hydraulic cylinder 8 can be started to work through the console. The hydraulic cylinder 8 will drive the mold pressing plate 9 to move through the output end when it works. The mold pressing plate 9 moves and opens to drive the moving column 14 to move. The moving column 14 drives the fixed plate 15 to move. The fixed plate 15 moves and contacts the front side of the pressing plate 13 through the contact surface, thereby driving the pressing plate 13 to move. The pressing plate 13 drives the sliding column 11 to move. The sliding column 11 drives the push plate 12 to move. The mold that has been injected inside the fixed mold shell 10 is pushed out by the movement of the push plate 12. Auxiliary mold ejection can reduce dependence on the heating system, thereby reducing energy consumption, accurately controlling the demoulding action, and ensuring that the product maintains its shape integrity during the demoulding process, thereby improving product quality. The inner wall of the fixed frame 1 is fixedly connected to a cooling box 17, and the inner wall of the cooling box 17 is fixedly connected to a connecting pipe 18. The inner wall of the fixed frame 1 is fixedly connected to the cooling box 17, and the inner wall of the cooling box 17 is fixedly connected to a withdrawal pipe 19; the inner wall of the crushing shell 2 is provided with a dredging mechanism 6 to prevent the equipment from being crushed and stuck, and the inner wall of the dredging mechanism 6 is provided with an anti-stuck mechanism 7 to prevent it from being stuck during screening; the left side of the crushing shell 2 is fixedly connected to a motor, and the output end of the motor is fixedly connected to the left side of the crushing roller assembly 3. The hot melt machine 5 is used to hot-melt the crushed small-particle plastic fragments, and the bottom of the injection tube 16 is fixedly connected to the inner wall of the fixed mold shell 10 , and the inner wall of the fixed mold shell 10 is provided with a mold groove for injection molding, the push plate 12 is slidably connected to the inner wall of the fixed mold shell 10, and the push plate 12 is used to push out the injected mold, the circumferential surface of the movable column 14 is slidably connected to the inner wall of the fixed mold shell 10, the rear side of the fixed mold shell 10 is in contact with the front side of the mold pressing plate 9, the inner wall of the mold pressing plate 9 is provided with a liquid storage tank for storing coolant, the front side of the connecting pipe 18 is fixedly connected to the inner wall of the mold pressing plate 9, the front side of the extraction pipe 19 is fixedly connected to the inner wall of the mold pressing plate 9, the inner wall of the cooling box 17 stores coolant, and the fixed plate 15 moves on the motion trajectory of the pressing plate 13; When the liquid flows into the middle of the fixed mold shell 10 and the mold pressing plate 9 through the injection tube 16, the inlet of the cooling box 17 can be opened at this time, so that the coolant flows into the liquid storage tank of the mold pressing plate 9 through the connecting tube 18. At this time, the coolant inside the liquid storage tank inside the mold pressing plate 9 is extracted back through the extraction tube 19 and then flows back through the connecting tube 18, so that the coolant is recycled through the connecting tube 18 and the extraction tube 19, which can more effectively take away the heat in the mold, thereby accelerating the cooling speed, shortening the entire injection molding cycle, and helping to avoid product deformation caused by uneven cooling, thereby improving product quality.

[0016] Working principle: When demoulding, the hydraulic cylinder 8 can drive the push plate 12 to move and push out the mold that has been injected inside the fixed mold shell 10. Auxiliary mold ejection can reduce dependence on the heating system and ensure that the product maintains its shape integrity during the demoulding process, thereby improving product quality; when the liquid flows into the middle of the fixed mold shell 10 and the mold pressing plate 9 through the injection pipe 16, the cooling liquid can be recycled through the connecting pipe 18 and the extraction pipe 19, which can more effectively take away the heat in the mold, thereby accelerating the cooling speed, shortening the entire injection molding cycle, and improving product quality.

[0017] See also Figure 1-Figure 7 In another embodiment of the present invention, based on the above embodiment, the dredging mechanism 6 includes a C-shaped rod 61, the inner wall of the C-shaped rod 61 is slidably connected to a sliding rod 62 via a spring, the side of the sliding rod 62 close to the sliding column 11 is fixedly connected to a limit plate 63, and both sides of the fixed mold shell 10 are fixedly connected to clamping plates 64; When the mold shell 10 is fixed to the mold pressing plate 9 and the mold, the sliding column 11 moves to drive the C-shaped rod 61 to move, the C-shaped rod 61 drives the sliding rod 62 to move, the sliding rod 62 drives the limiting plate 63 to move, and the limiting plate 63 moves through the inclined surface to contact the inclined surface of the clamping plate 64, thereby driving the sliding rod 62 to retract. When the clamping plate 64 enters the interior of the C-shaped rod 61, it will be reset by the spring between the sliding rod 62 and the C-shaped rod 61, so that the limiting plate 63 cooperates with the sliding rod 62 to self-lock the sliding column 11 and the fixed mold shell 10, which can effectively prevent the mold from opening or sliding due to excessive injection pressure during the injection molding process, thereby ensuring the stability of the mold and the molding quality of the product, reducing the dependence on the clamping force of the injection molding machine, and reducing the overall production cost; The left side of the crushing roller assembly 3 is fixedly connected to a pulley group 2 65, and a reciprocating screw 66 is fixedly connected to the axis of the front pulley of the pulley group 2 65. The circumferential surface of the reciprocating screw 66 is movably connected to a dredging rod 67. The inner wall of the crushing shell 2 is fixedly connected to a limiting column 68, and the inner wall of the crushing shell 2 is fixedly connected to a screening plate 69; both sides of the sliding column 11 are fixedly connected to the sliding rod 62, the limiting plate 63 contacts the inner wall of the C-shaped rod 61, the clamping plate 64 contacts the inner wall of the C-shaped rod 61, and the side of the limiting plate 63 away from the fixed mold shell 10 contacts the limiting plate 63, the circumferential surface of the limiting column 68 is rotatably connected to the inner wall of the crushing shell 2, the inner wall of the dredging rod 67 contacts the circumferential surface of the limiting column 68, and the screening plate 69 is used to screen plastic particles of different sizes; When the crushed material is crushed, the rotation of the rear crushing roller of the crushing roller assembly 3 will drive the rear pulley of the pulley group 2 65 to rotate, and the rear pulley of the pulley group 2 65 drives the front pulley to rotate through the belt, and the rotation of the front pulley drives the reciprocating screw 66 to rotate through the axis. The rotation of the reciprocating screw 66 will contact the inner wall of the dredging rod 67 through the reciprocating groove on the circumferential surface, thereby driving the dredging rod 67 to move back and forth to dredge the gap in the middle of the crushing roller assembly 3, avoiding large plastics from being stuck in the middle, and preventing plastic fragments from accumulating between the roller gaps, thereby avoiding blockage and ensuring that the crusher can operate continuously and efficiently. The time for mold injection is further reduced, and the limit column 68 is used to limit the dredging rod 67 to avoid the dredging rod 67 from rotating during dredging, thereby improving the stability of the equipment.

[0018] Working principle: When the mold shell 10 is fixed to the mold pressure plate 9 and the mold, the sliding column 11 and the fixed mold shell 10 are self-locked by the limit plate 63 and the sliding rod 62, which can effectively prevent the mold from opening or sliding due to excessive injection pressure during the injection molding process, thereby ensuring the stability of the mold and the molding quality of the product; when the scraps are crushed, the dredging rod 67 is driven to move back and forth by the crushing roller assembly 3 to dredge the gap in the middle of the crushing roller assembly 3, avoiding large plastics from being stuck in the middle, and preventing plastic fragments from accumulating between the roller gaps, thereby avoiding blockage and ensuring that the crusher can operate continuously and efficiently.

[0019] The anti-stuck mechanism 7 includes a Y-shaped rod 71, the inner wall of the Y-shaped rod 71 is rotatably connected to a brush cylinder 72, and the circumferential surface of the brush cylinder 72 is fixedly connected to a rubber wheel 73; When screening the crushed particles, the movement of the dredging rod 67 will drive the Y-shaped rod 71 to move, the Y-shaped rod 71 will drive the brush cylinder 72 to move, the movement of the brush cylinder 72 will drive the rubber wheel 73 to move, and the rubber wheel 73 will contact the top of the screening plate 69 through the circumferential surface, thereby driving the brush cylinder 72 to rotate, so that the brush cylinder 72 can further prevent the particles from accumulating on the top of the screening plate 69, preventing the crushed particles from not being screened, and large particles from easily accumulating in the heating system, causing blockage, which can reduce the overload of the heating system, thereby reducing energy consumption and improving energy utilization efficiency; The circumferential surface of the reciprocating screw 66 is fixedly connected to a cam 74, and the L-shaped rack 75 is slidably connected to the inner wall of the crushing shell 2 through a spring. The inner wall of the crushing shell 2 is rotatably connected to a gear 76, and the inner wall of the gear 76 is rotatably connected to a flip plate 77; the bottom of the dredging rod 67 is fixedly connected to the top of the Y-shaped rod 71, the circumferential surface of the brush cylinder 72 contacts the top of the screening plate 69, and the brush cylinder 72 is used to clean the accumulated plastic particles, the circumferential surface of the rubber wheel 73 contacts the top of the screening plate 69, and the circumferential surface of the rubber wheel 73 is sleeved with a rubber ring to increase friction, the circumferential surface of the cam 74 contacts the top of the L-shaped rack 75, and the L-shaped rack 75 will reciprocate through the irregular circumferential surface of the cam 74, and the inner wall of the L-shaped rack 75 meshes with the circumferential surface of the gear 76; During cleaning, the rotation of the reciprocating screw 66 will drive the cam 74 to rotate. The rotation of the cam 74 will contact the top of the L-shaped rack 75 through the irregular circumferential surface of the circumferential surface, thereby driving the L-shaped rack 75 to reciprocate through the spring. The L-shaped rack 75 moves through the inner wall and engages with the circumferential surface of the gear 76, thereby driving the flip plate 77 to flip, so that the plastic particles inside the crushed shell 2 will indirectly enter the hot melt machine 5 for hot melting through the flipping of the flip plate 77, avoiding excessive entry at one time and causing blockage of the equipment, and avoiding direct heating that may cause local overheating of the plastic particles. Indirect heating can distribute heat more evenly, reduce the degradation of material properties caused by overheating, and improve the overall quality of the mold after the injection molding is completed.

[0020] Working principle: When screening the crushed particles, the movement of the dredging rod 67 will drive the brush barrel 72 to move to prevent the particles from accumulating on the top of the screening plate 69, and prevent the crushed particles from not being screened. Large particles are easily accumulated in the heating system, causing blockage, thereby improving energy utilization efficiency; while cleaning, the reciprocating screw 66 drives the flip plate 77 to flip, so that the plastic particles inside the crushing shell 2 will indirectly enter the hot melt machine 5 through the flip plate 77 for hot melting, avoiding excessive entry at one time and causing blockage of the equipment, reducing the degradation of material properties due to overheating, and improving the overall quality of the mold after the injection molding is completed.

[0021] The present invention provides an injection molding device for producing environmentally friendly tableware that recycles plastic waste. There are numerous methods and approaches for implementing this technical solution. The foregoing description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Components not specified in this embodiment may be implemented using existing technologies.

Claims

1. An injection molding device for producing environmentally friendly tableware by recycling plastic waste, comprising a fixing frame (1), characterized in that: The top of the fixed frame (1) is fixedly connected to a crushing shell (2), the inner wall of the crushing shell (2) is installed with a crushing roller assembly (3), the right side of the crushing roller assembly (3) is fixedly connected to a pulley group (4), the inner wall of the fixed frame (1) is fixedly connected to a hot melt machine (5), the inner wall of the hot melt machine (5) is fixedly connected to an injection molding pipe (16), the inner wall of the fixed frame (1) is fixedly connected to a hydraulic cylinder (8), the output end of the hydraulic cylinder (8) is fixedly connected to a mold pressing plate (9), and the mold pressing plate (9) The front side of the fixed frame (1) is fixedly connected to a moving column (14), the front side of the moving column (14) is fixedly connected to a fixed plate (15), the inner wall of the fixed frame (1) is fixedly connected to a fixed mold shell (10), the inner wall of the fixed mold shell (10) is slidably connected to a sliding column (11) through a spring, the front side of the sliding column (11) is fixedly connected to a pressing plate (13), the rear side of the sliding column (11) is fixedly connected to a push plate (12), the inner wall of the fixed frame (1) is fixedly connected to a cooling box (17), the inner wall of the cooling box (17) is fixedly connected to a connecting pipe (18), the inner wall of the fixed frame (1) is fixedly connected to the cooling box (17), and the inner wall of the cooling box (17) is fixedly connected to a withdrawal pipe (19).

2. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 1, characterized in that: The inner wall of the crushing shell (2) is provided with a dredging mechanism (6) for preventing the equipment from being crushed and stuck, and the inner wall of the dredging mechanism (6) is provided with an anti-stuck mechanism (7) for preventing it from being stuck during screening.

3. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 2, characterized in that: The left side of the crushing shell (2) is fixedly connected to a motor, and the output end of the motor is fixedly connected to the left side of the crushing roller assembly (3). The hot melt machine (5) is used to hot melt the crushed small-particle plastic fragments. The bottom of the injection tube (16) is fixedly connected to the inner wall of the fixed mold shell (10), and the inner wall of the fixed mold shell (10) is provided with a mold groove for injection molding. The push plate (12) is slidably connected to the inner wall of the fixed mold shell (10), and the push plate (12) is used to push out the mold after injection molding. The movable column ( The circumferential surface of the mold shell (14) is slidably connected to the inner wall of the fixed mold shell (10), the rear side of the fixed mold shell (10) is in contact with the front side of the mold pressing plate (9), the inner wall of the mold pressing plate (9) is provided with a liquid storage tank for storing coolant, the front side of the connecting pipe (18) is fixedly connected to the inner wall of the mold pressing plate (9), the front side of the extraction pipe (19) is fixedly connected to the inner wall of the mold pressing plate (9), the inner wall of the cooling box (17) stores coolant, and the fixed plate (15) moves on the motion trajectory of the pressing plate (13).

4. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 3, characterized in that: The dredging mechanism (6) comprises a C-shaped rod (61), the inner wall of the C-shaped rod (61) is slidably connected to a sliding rod (62) via a spring, the side of the sliding rod (62) close to the sliding column (11) is fixedly connected to a limiting plate (63), and both sides of the fixed mold shell (10) are fixedly connected to clamping plates (64).

5. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 4, characterized in that: The left side of the crushing roller assembly (3) is fixedly connected to a pulley group 2 (65), the front pulley axis of the pulley group 2 (65) is fixedly connected to a reciprocating screw (66), the circumferential surface of the reciprocating screw (66) is movably connected to a dredging rod (67), the inner wall of the crushing shell (2) is fixedly connected to a limiting column (68), and the inner wall of the crushing shell (2) is fixedly connected to a screening plate (69).

6. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 5, characterized in that: Both sides of the sliding column (11) are fixedly connected to the sliding rod (62), the limiting plate (63) contacts the inner wall of the C-shaped rod (61), the clamping plate (64) contacts the inner wall of the C-shaped rod (61), the side of the limiting plate (63) away from the fixed mold shell (10) contacts the limiting plate (63), the circumferential surface of the limiting column (68) is rotatably connected to the inner wall of the crushing shell (2), the inner wall of the dredging rod (67) contacts the circumferential surface of the limiting column (68), and the screening plate (69) is used to screen plastic particles of different sizes.

7. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 6, characterized in that: The anti-stuck mechanism (7) comprises a Y-shaped rod (71), the inner wall of the Y-shaped rod (71) is rotatably connected to a brush cylinder (72), and the circumferential surface of the brush cylinder (72) is fixedly connected to a rubber wheel (73).

8. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 7, characterized in that: The circumferential surface of the reciprocating screw (66) is fixedly connected to a cam (74), the L-shaped rack (75) is slidably connected to the inner wall of the crushing shell (2) via a spring, the inner wall of the crushing shell (2) is rotatably connected to a gear (76), and the inner wall of the gear (76) is rotatably connected to a flip plate (77).

9. The injection molding device for producing environmentally friendly tableware by recycling plastic waste according to claim 8, characterized in that: The bottom of the dredging rod (67) is fixedly connected to the top of the Y-shaped rod (71), the circumferential surface of the brush cylinder (72) contacts the top of the screening plate (69), and the brush cylinder (72) is used to clean the accumulated plastic particles, the circumferential surface of the rubber wheel (73) contacts the top of the screening plate (69), and the circumferential surface of the rubber wheel (73) is sleeved with a rubber ring for increasing friction, the circumferential surface of the cam (74) contacts the top of the L-shaped rack (75), and the L-shaped rack (75) will reciprocate through the irregular circumferential surface of the cam (74), and the inner wall of the L-shaped rack (75) is engaged with the circumferential surface of the gear (76).

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