Terminal injection molding processing equipment and process based on plastic waste regeneration

Abstract

The invention relates to the technical field of terminal injection molding processing, and discloses terminal injection molding processing equipment and process based on plastic waste regeneration, the terminal injection molding processing equipment based on plastic waste regeneration comprises a conveying table fixedly arranged on a blanking area of a terminal injection molding machine main body, and a collecting tank is fixedly arranged on one side of the output end of the conveying table; a lifting rod is slidably arranged at the lower end of the collecting tank, an electric push rod is fixedly connected between the end of the lifting rod and the side wall of the collecting tank, a plurality of positioning pieces are linearly distributed on the lifting rod at equal intervals, and cutting knives are arranged on the two sides of each positioning piece. The lifting rod drives the positioning piece and the cutting knife to move to precisely cut a product and separate the terminal from the drainage opening material, so that a product line is shortened, rapid separation of the product is achieved, the production efficiency is improved, meanwhile, the lifting rod and the transmission rod are matched to control the adjusting plate to turn over, the terminal and the drainage opening material are separately discharged, and material mixing is avoided.

Description

Technical Field

[0001] This invention relates to the field of terminal injection molding technology, and in particular to a terminal injection molding equipment and process based on the recycling of plastic waste. Background Technology

[0002] To meet the needs of cost reduction, efficiency improvement, environmental protection, carbon reduction, and resource recycling, waste plastics can be reused after recycling. Terminals, as key components in electronics and electrical appliances, have a huge demand for plastic raw materials. By using recycled plastics, raw material costs can be reduced, plastic pollution can be decreased, and energy consumption in virgin plastic production can be lowered, resulting in significant practical benefits.

[0003] In the terminal injection molding process, molten plastic is injected into multiple cavities through the mold's runner system. The molded terminals are connected as a whole by the sprue runner frame and discharged through the discharge port.

[0004] Currently, mainstream terminal injection molding equipment suffers from the following drawbacks: after the injection-molded products are discharged from the discharge area, they must be manually collected using a collection box and then transferred to a separation device to separate the terminals from the sprue. This artificially divides the production process into two independent steps: "injection molding" and "separation," preventing continuous automated operation and hindering overall production efficiency. Furthermore, the sprue material, a reusable plastic resource, cannot be separated, crushed, and recycled online in real time, disrupting the possibility of closed-loop production and increasing raw material waste and processing costs. In summary, the existing technology suffers from a bottleneck in the sprue processing stage due to the single function of the injection molding machine's discharge end. This not only increases the number of processes, costs, and space requirements but also hinders the realization of an efficient, clean, and intelligent production model. Summary of the Invention

[0005] Given that existing technologies require the collection and turnover of injection-molded products before the terminals and sprue material are separated, resulting in secondary processing and reduced production efficiency, a terminal injection molding equipment based on plastic waste recycling is proposed.

[0006] Its purpose is to: after the product is corrected and positioned at the discharge port, the cutting device cuts and separates the terminals and sprue material, and discharges the terminals and sprue material separately, so as to achieve rapid and automated separation and improve production efficiency.

[0007] The technical solution of the present invention is a terminal injection molding processing equipment based on plastic waste recycling, including a terminal injection molding machine body and a conveyor platform fixedly installed on the material feeding area of ​​the terminal injection molding machine body. A collection trough is fixedly installed on one side of the output end of the conveyor platform. The collection trough is inclined. A lifting rod is slidably installed at the lower end of the collection trough. Both ends of the lifting rod extend out of the collection trough. An electric push rod is fixedly connected between the end of the lifting rod and the side wall of the collection trough. Multiple positioning parts are linearly and equally spaced on the lifting rod. Cutting blades are installed on both sides of the positioning parts. The height of the cutting blades is higher than the height of the positioning parts. A baffle is hinged to the lower side of the collection trough. The baffle is in transmission cooperation with the lifting rod. The lower side of the baffle is provided with a U-shaped plate fixedly connected to the conveyor table. Two inclined plates are fixedly connected in a symmetrical structure inside the U-shaped plate. An adjusting plate is provided between the two inclined plates. The adjusting plate is rotatably connected to the U-shaped plate. The upper end of the adjusting plate abuts against the inner wall of one of the inclined plates. A transmission rod is vertically slidably connected to one side wall of the U-shaped plate. The transmission rod is located below the lifting rod and is used to drive the adjusting plate to rotate.

[0008] Furthermore, the positioning component includes a fixed rod disposed on the lifting rod, a movable rod slidably connected inside the fixed rod, a pressure rod fixedly connected to the lower end of the movable rod, and an elastic element fixedly connected between the movable rod and the fixed rod.

[0009] Furthermore, both the upper end of the fixed rod and the upper end of the cutting blade are fixedly connected to a slide block, the slide block is slidably sleeved on the lifting rod, and a bolt is threadedly connected to the slide block, one end of the bolt abutting against the lifting rod.

[0010] Furthermore, the upper end of the baffle is connected to the side wall of the collection tank by a spring hinge, and the two ends of the upper end of the baffle extend to the outside of the collection tank and are fixedly connected to a drive rod, which is located below the lifting rod.

[0011] Furthermore, a rack is fitted onto the transmission rod, and a transmission gear is meshed with one side of the rack. One end of the adjusting plate shaft extends out of the U-shaped plate and is connected and fixed to the transmission gear. The lower end of the transmission rod is fitted with an elastic element two, and the two ends of the elastic element two are respectively connected and fixed to the transmission rod and the side wall of the collection tank.

[0012] Furthermore, the rack is slidably sleeved on the transmission rod, a fixed block is fixedly connected to the transmission rod, an elastic element is connected between the fixed block and the rack, and a positioning rod is hinged to one side of the fixed block. A positioning hook is provided at the lower end of the positioning rod, and a positioning groove adapted to the positioning hook is opened on the side of the rack facing the positioning rod. A guide block is provided above the positioning rod, and the guide block is fixedly connected to the side wall of the collection tank.

[0013] Furthermore, the conveyor platform is provided with two correction plates, and two rotating shafts are movably connected between the two correction plates. The rotating shafts are rotatably connected to the conveyor platform, and a chain is connected between the two rotating shafts. A driven gear is fixedly connected to the end of one of the rotating shafts. A sector gear is fixedly connected to one of the conveyor rollers of the conveyor platform, and the sector gear meshes with the driven gear. Both ends of the rotating shaft are fixedly connected to rotating columns. An annular drive groove is provided on the rotating column, and a sliding rod is provided on the annular drive groove. The sliding rod is fixedly connected to one side wall of the correction plate.

[0014] Furthermore, multiple second-level correction plates are arranged linearly and equally between the two first-level correction plates. The second-level correction plates are arranged perpendicular to the first-level correction plates, and a connecting rod is hinged between the end of the second-level correction plate and one side wall of the first-level correction plate.

[0015] Another objective of this invention is to provide a terminal injection molding process based on recycled plastic waste. The purpose is to reduce the turnaround time of the injection-molded product, to accurately cut and separate the product by using a positioning component and a cutting blade, and to classify and discharge the terminals and sprue material by flipping an adjustment plate, which is beneficial for the recycling of sprue material.

[0016] To achieve the above objectives, the present invention provides the following technical solution: a terminal injection molding process based on recycled plastic waste, comprising the following steps: S1. Mold Closure and Injection: The main body of the terminal injection molding machine drives the two terminal molds to merge, and the screw rotation generates thrust to inject molten plastic into the mold cavity; S2, Pressure Holding and Cooling: The screw continues to maintain a certain pressure, replenishing the mold cavity with the material needed due to the cooling and shrinkage of the plastic, until the product in the mold cools and sets; S3. Mold opening and ejection: The two molds separate, and the ejector mechanism ejects the product from the mold and discharges it through the discharge port; S4. Cutting and Separation: The conveyor conveys the product to the collection tank. The electric push rod drives the lifting rod to descend. The positioning part presses the sprue material. The cutting blade cuts off the terminal and sprue material. The terminal and sprue material are discharged in sequence through the adjusting plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a conveyor at the discharge port to transfer products, after the products move into the collection tank, the lifting rod drives the positioning component and the cutting blade to move, and precisely cuts the products, separating the terminals and sprue material. This shortens the product line, enables rapid product separation, improves production efficiency, and reduces the floor space. At the same time, the lifting rod and the transmission rod work together to control the adjustment plate to flip, so that the terminals and sprue material are discharged separately, avoiding mixing, reducing subsequent sorting processes, and facilitating the recycling of sprue material.

[0018] 2. Through the linkage of the fixed block, positioning rod, and rack, the adjusting plate can be tilted first in the initial stage of the lifting rod's ascent, without waiting for the positioning component to cancel the pressing of the sprue material, thus completing the switching of the sprue material discharge direction in advance, thereby shortening the action interval and further improving the separation and discharge efficiency of the terminal and the sprue material.

[0019] 3. With the intermittent adjustment of the first and second correction plates, the product can enter the collection tank in a uniform posture, which enables the subsequent cutting blade to accurately cut the connection between the terminal and the sprue material, avoiding cutting deviation, thereby reducing burrs generated after terminal cutting and improving the quality of the finished terminal. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the terminal injection molding equipment based on plastic waste recycling according to the present invention; Figure 2 This is a schematic diagram of the conveyor table and collection tank structure of the terminal injection molding equipment based on plastic waste recycling according to the present invention; Figure 3 This is a schematic diagram of the collection tank and baffle structure of the terminal injection molding equipment based on plastic waste recycling according to the present invention; Figure 4 This is a schematic diagram of the lifting rod, cutting blade, and positioning component of the terminal injection molding equipment based on plastic waste recycling of the present invention; Figure 5 This is a schematic cross-sectional view of the positioning rod structure of the terminal injection molding equipment based on plastic waste recycling according to the present invention; Figure 6 This is a schematic diagram of the inclined plate and adjusting plate structure of the terminal injection molding equipment based on plastic waste recycling according to the present invention; Figure 7 This is a schematic diagram of the transmission rod and transmission gear structure of the terminal injection molding equipment based on plastic waste recycling of the present invention; Figure 8 This is a schematic diagram of the positioning rod and rack structure of the terminal injection molding equipment based on plastic waste recycling according to the present invention; Figure 9 This is a schematic diagram of the structure of the correction plate one and correction plate two of the terminal injection molding equipment based on plastic waste recycling of the present invention; Figure 10 This is a schematic diagram of the rotating column and sliding rod structure of the terminal injection molding equipment based on plastic waste recycling of the present invention.

[0021] In the picture: 1. Terminal injection molding machine body; 2. Conveyor table; 3. Collection trough; 4. Baffle; 5. Lifting rod; 6. Electric push rod; 7. Positioning component; 71. Fixed rod; 72. Movable rod; 73. Pressure rod; 8. Cutting blade; 9. Slide seat; 10. Bolt; 11. U-shaped plate; 12. Inclined plate; 13. Adjusting plate; 14. Driving rod; 15. Transmission rod; 16. Transmission gear; 17. Rack; 18. Fixed block; 19. Positioning rod; 20. Positioning hook; 21. Positioning groove; 22. Guide block; 23. Correction plate one; 24. Rotating shaft; 25. Driven gear; 26. Sector gear; 27. Rotating column; 28. Annular drive groove; 29. ​​Slide rod; 30. Correction plate two; 31. Connecting rod. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Example 1, referring to Figures 1-7 This is the first embodiment of the present invention, which provides a terminal injection molding processing equipment based on plastic waste recycling. It includes a terminal injection molding machine body 1 and a conveyor table 2 fixedly mounted on the material feeding area of ​​the terminal injection molding machine body 1. A collection trough 3 is fixedly mounted on one side of the output end of the conveyor table 2. The collection trough 3 is inclined, and a lifting rod 5 is slidably mounted on the lower end of the collection trough 3. Both ends of the lifting rod 5 extend out of the collection trough 3. An electric push rod 6 is fixedly connected between the end of the lifting rod 5 and the side wall of the collection trough 3. Multiple positioning elements 7 are linearly and equally spaced on the lifting rod 5, and cutting blades 8 are mounted on both sides of each positioning element 7. The height of the cutting blade 8 is higher than that of the positioning component 7. The collecting trough 3 is hinged to a baffle 4 on the lower side. The baffle 4 is in transmission cooperation with the lifting rod 5. A U-shaped plate 11 is fixedly connected to the conveyor table 2 on the lower side of the baffle 4. Two inclined plates 12 are fixedly connected in a symmetrical structure inside the U-shaped plate 11. An adjusting plate 13 is set between the two inclined plates 12. The adjusting plate 13 is rotatably connected to the U-shaped plate 11. The upper end of the adjusting plate 13 abuts against the inner wall of one of the inclined plates 12. A transmission rod 15 is vertically slidably connected to one side wall of the U-shaped plate 11. The transmission rod 15 is set below the lifting rod 5 and is used to drive the adjusting plate 13 to rotate.

[0024] Specifically, the injection-molded product (including terminals and sprue material) is discharged from the discharge port of the terminal injection molding machine body 1 and falls onto the conveyor table 2. After being conveyed by the conveyor table 2, it falls into the collection tank 3. The product slides along the inclined surface of the collection tank 3 until it contacts the baffle 4. When the electric push rod 6 drives the lifting rod 5 to descend, the positioning part 7 first comes into contact with the sprue material of the product. Then the cutting blade 8 descends and cuts off the connection between the sprue material and the terminal. At the same time, the baffle 4 opens, and the terminal is discharged downward through the adjusting plate 13 between the two inclined plates 12. When the lifting rod 5 rises, the transmission rod 15 drives the adjusting plate 13 to rotate, so that the upper end of the adjusting plate 13 contacts the other inclined plate 12. After the positioning part 7 cancels the contact of the sprue material, the sprue material is discharged to the other side through the adjusting plate 13.

[0025] This invention uses a conveyor 2 and a collection trough 3 to complete the turnover and positioning of products, and a positioning component 7 and a cutting blade 8 to complete the precise cutting of products. At the same time, the linkage between the lifting rod 5 and the transmission rod 15 enables the adjustment plate 13 to automatically switch the discharge direction, so that the separated terminals and sprue materials are discharged separately. The sprue materials are discharged through a separate channel, which is convenient for centralized collection and plastic waste recycling, in line with the concept of environmental protection. At the same time, the separate collection of terminals and sprue materials can avoid mixing, reduce subsequent sorting processes, and further improve production efficiency.

[0026] Among them, exhibitors Figure 2 The conveyor table 2 includes a fixed base that is fixedly connected to the side wall of the terminal injection molding machine body 1. A conveyor belt is rotatably connected inside the fixed base. The conveyor belt is located below the discharge port, and a motor is installed on the side wall of the fixed base. The motor is used to drive the conveyor belt to rotate counterclockwise.

[0027] The two electric actuators 6 are connected to the same control module, which controls the two electric actuators 6 to extend or retract synchronously at regular intervals.

[0028] Reference Figure 5 The positioning component 7 includes a fixed rod 71 disposed on the lifting rod 5, a movable rod 72 slidably connected inside the fixed rod 71, a pressure rod 73 fixedly connected to the lower end of the movable rod 72, and an elastic element fixedly connected between the movable rod 72 and the fixed rod 71.

[0029] Specifically, when the lifting rod 5 descends, the pressure rod 73 first contacts the sprue material of the product. As the lifting rod 5 continues to descend, the elastic element 1 is compressed, causing the positioning element 7 to elastically press and fix the sprue material. Then the cutting blade 8 descends and cuts off the connection between the sprue material and the terminal, completing the separation of the terminal and the sprue material.

[0030] Reference Figure 4The upper end of the fixed rod 71 and the upper end of the cutting blade 8 are both fixedly connected to the slide block 9. The slide block 9 is slidably sleeved on the lifting rod 5, and the slide block 9 is threadedly connected to the bolt 10. One end of the bolt 10 abuts against the lifting rod 5.

[0031] Specifically, the position of the cutting blade 8 and the positioning member 7 can be adjusted by the cooperation of the slide 9 and the bolt 10, so that it can be adjusted and adapted according to different terminal products. When the cutting blade 8 falls, its blade is located on the side wall of the terminal, completely cutting off the sprue material and separating the terminal from the sprue material.

[0032] It should be noted that, refer to Figure 3 The collection trough 3 is provided with a limiting hole for the sliding of the lifting rod 5. The lifting rod 5 moves straight within the limiting hole, first causing the positioning part 7 to come into contact with the product, and then causing the cutting blade 8 to cut and separate the product. By adjusting the number of cutting blades 8 and positioning parts 7, different types of injection molded products can be further adapted.

[0033] Reference Figure 3 The upper end of the baffle 4 is connected to the side wall of the collection tank 3 by a spring hinge, and the two ends of the upper end of the baffle 4 extend to the outside of the collection tank 3 and are fixedly connected to the drive rod 14. The drive rod 14 is located on the lower side of the lifting rod 5.

[0034] Specifically, under the elastic force of the spring hinge, the baffle 4 is driven to fit against the port of the collection tank 3, blocking the product sliding on the collection tank 3. After the lifting rod 5 drives the positioning part 7 to abut against the product, the lifting rod 5 continues to descend and contact the driving rod 14, causing the baffle 4 to rotate to cancel the obstruction of the port of the collection tank 3.

[0035] Reference Figure 6 , Figure 7 A rack 17 is fitted on the transmission rod 15, and a transmission gear 16 is meshed on one side of the rack 17. One end of the adjusting plate 13 is connected to the U-shaped plate 11 and is fixedly connected to the transmission gear 16. An elastic element 2 is fitted on the lower end of the transmission rod 15, and the two ends of the elastic element 2 are respectively fixedly connected to the transmission rod 15 and the side wall of the collection trough 3.

[0036] Specifically, when the lifting rod 5 descends and contacts the upper end of the transmission rod 15, it causes the transmission rod 15 to descend. At this time, the elastic element 2 stretches and stores force, and the rack 17 drives the transmission gear 16, causing the adjusting plate 13 to rotate. This causes the upper end of the adjusting plate 13 to rotate until it contacts another inclined plate 12, changing the material discharge direction and allowing the terminals and sprue material to be discharged in two directions, achieving separate discharge. When the lifting rod 5 rises, the elastic element 2 contracts, causing the transmission rod 15 to rise and reset. The cooperation between the rack 17 and the transmission gear 16 can precisely control the rotation angle of the adjusting plate 13, ensuring accurate switching of the material discharge channel and preventing mixing of terminals and sprue material during discharge. It should be noted that the sequence of triggering structures when the lifting rod 5 moves is as follows: When the lifting rod 5 descends, it first drives the positioning part 7 to press against the sprue material of the product, and then contacts the driving rod 14 to drive the baffle 4 to rotate until the contact with the port of the collection tank 3 is canceled. Then it drives the transmission rod 15 to descend, causing the adjusting plate 13 to change its tilt direction. Then it drives the cutting blade 8 to descend, completing the cutting and separation of the terminal and the sprue material. The terminal is discharged through the adjusting plate 13. When the lifting rod 5 rises, it first drives the transmission rod 15 to rise, and the adjusting plate 13 rotates to reset. Then the positioning part 7 cancels the pressing of the sprue material, and the sprue material is discharged through the adjusting plate 13 in another tilted state. Then the lifting rod 5 cancels the contact with the driving rod 14, and the baffle 4 rotates to fit against the port of the collection tank 3.

[0037] Example 2, refer to Figure 7 , Figure 8 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the rack 17 is slidably sleeved on the transmission rod 15, the transmission rod 15 is fixedly connected to the fixing block 18, the fixing block 18 and the rack 17 are connected together by an elastic element 3, and a positioning rod 19 is hinged to one side of the fixing block 18. A positioning hook 20 is provided at the lower end of the positioning rod 19, and a positioning groove 21 adapted to the positioning hook 20 is opened on the side of the rack 17 facing the positioning rod 19; a guide block 22 is provided above the positioning rod 19, and the guide block 22 is fixedly connected to the side wall of the collection tank 3.

[0038] Specifically, when the transmission rod 15 descends, the elastic element 3 drives the rack 17 to descend, driving the transmission gear 16. After the adjusting plate 13 changes its tilt direction, the positioning hook 20 engages with the positioning groove 21. When the transmission rod 15 rises, the fixing block 18 and the positioning rod 19 drive the rack 17 to move synchronously. This allows the adjusting plate 13 to flip preferentially after the terminal discharge is completed, when the lifting rod 5 rises and the positioning element 7 has not yet released its pressure on the sprue material, thus changing the direction to separate the terminal and sprue material discharge. After the transmission rod 15 rises and resets, the upper end of the positioning rod 19 contacts the guide block 22, and the positioning rod 19 rotates counterclockwise, causing the positioning hook 20 to disconnect from the positioning groove 21. Through the linkage of the fixing block 18, the positioning rod 19, and the rack 17, the adjusting plate 13 flips preferentially in the initial stage of the lifting rod 5's rise, without waiting for the positioning element 7 to release its pressure on the sprue material, completing the switching of the sprue material discharge direction in advance, shortening the action interval, and further improving the efficiency of separating the terminal and sprue material discharge.

[0039] When the lifting rod 5 descends and the positioning member 7 contacts the sprue material while the cutting blade 8 does not, the rack 17 and the transmission gear 16 cooperate to complete the first rotation of the adjusting plate 13. At this time, the upper end of the adjusting plate 13 contacts the right inclined plate 12. After the cutting blade 8 completes the cutting, the terminal is discharged to the left through the adjusting plate 13 in this state. When the lifting rod 5 rises and the positioning member 7 is still in contact with the sprue material, the positioning rod 19 drives the rack 17 to rise synchronously, causing the adjusting plate 13 to rotate for the second time. The upper end of the adjusting plate 13 contacts the left inclined plate 12. After the positioning member 7 cancels its contact with the sprue material, the sprue material is discharged to the right through the adjusting plate 13 in this state.

[0040] It should be noted that the elastic force of elastic element two is less than that of elastic element three. When the transmission rod 15 descends, elastic element two stretches first, and elastic element three drives the rack 17 to drive the transmission gear 16 to rotate. Subsequently, when the lifting rod 5 continues to descend, the rack 17 cannot continue to move because the adjusting plate 13 contacts the inclined plate 12. Then, elastic element three is compressed until the cutting blade 8 completes the cutting of the product. The rest of the structure is the same as that of Embodiment 1.

[0041] Example 3, referring to Figure 9 , Figure 10 This is the third embodiment of the present invention, which differs from the second embodiment in that: two correction plates 23 are provided on the conveyor table 2, and two rotating shafts 24 are movably connected between the two correction plates 23. The rotating shafts 24 are rotatably connected to the conveyor table 2, and a chain is connected between the two rotating shafts 24. A driven gear 25 is fixedly connected to the end of one of the rotating shafts 24. A sector gear 26 is fixedly connected to one of the conveyor rollers of the conveyor table 2, and the sector gear 26 meshes with the driven gear 25. Rotating columns 27 are fixedly connected to both ends of the rotating shafts 24. An annular drive groove 28 is provided on the rotating column 27, and a sliding rod 29 is provided on the annular drive groove 28. The sliding rod 29 is fixedly connected to the side wall of the correction plate 23.

[0042] Specifically, the sector gear 26 is driven synchronously with the synchronous belt. When the teeth of the sector gear 26 mesh with the driven gear 25, the two rotating shafts 24 rotate in the same direction. Through the cooperation of the annular drive groove 28 and the slide rod 29, the two correction plates 23 are driven to move closer to each other, so that the product is placed in the center on the conveyor belt.

[0043] The annular drive groove 28 is composed of an annular groove and a trapezoidal groove. The slide rod 29 is located in the trapezoidal groove. When the rotating column 27 rotates, the slide rod 29 slides along the inclined surface of the trapezoidal groove, driving the correction plate 23 to move.

[0044] Reference Figure 9Multiple correction plates 30 are arranged linearly and equally between the two correction plates 23. The correction plates 30 are perpendicular to the correction plates 23, and the ends of the correction plates 30 and the side walls of the correction plates 23 are hinged together by a connecting rod 31.

[0045] Specifically, when the sector gear 26 is not meshing with the driven gear 25, the gravity of the second correction plate 30 causes the two first correction plates 23 to move away from each other. Then, the second correction plate 30 descends above the conveyor belt. Under the obstruction of the second correction plate 30, the product deflects on the conveyor belt until the length direction of the product is in contact with the side wall of the second correction plate 30. Then, through the mutual approach and push of the two first correction plates 23, the product is accurately positioned by the first correction plate 23 and the second correction plate 30 and can enter the collection tank 3 in a uniform posture. Subsequently, the cutting blade 8 can accurately cut the connection part between the terminal and the sprue material, effectively avoiding the cutting deviation caused by the product position offset, reducing the burrs generated after the terminal is cut, improving the quality of the finished terminal, and reducing the defect rate.

[0046] Multiple straightening plates 30 are linearly and equally spaced, which can orderly separate multiple products on the conveyor table 2, allowing the products to enter the collection tank 3 sequentially at fixed intervals. This orderly conveying can be precisely coordinated with the timed extension and retraction of the electric push rod 6, ensuring that each product is in the optimal cutting position when the electric push rod 6 drives the lifting rod 5 and the cutting blade 8, avoiding product accumulation or conveying disorder that affects the processing rhythm and improving the overall operating efficiency of the equipment. The rest of the structure is the same as that in Embodiment 2.

[0047] Based on embodiments 1-3, the working principle of this invention is as follows: When the equipment is working, the product containing terminals and sprue material discharged from the main body 1 of the terminal injection molding machine first falls onto the conveyor belt of the conveyor table 2. The conveyor belt drives the product to move into the collection tank 3. During conveying, the sector gear 26 and the driven gear 25 intermittently mesh, driving the rotating shaft 24 to rotate. Through the cooperation of the annular drive groove 28 and the slide rod 29, the first correction plate 23 is brought closer to the centered product, and the second correction plate 30 separates the products and corrects their posture, ensuring that the products enter the collection tank 3 with uniform intervals and postures. The product slides along the inclined collection tank 3 until it is blocked and positioned by the baffle 4. The electric push rod 6 drives the lifting rod 5 to descend, first allowing the positioning part 7 to elastically press the sprue material. Then, the lifting rod 5 touches the drive rod 14 to open the baffle 4, and then presses down the transmission rod 15. Through the rack 17 and the transmission gear 16, the adjusting plate 13 is rotated to the angle suitable for terminal discharge. Finally, the cutting blade 8 descends to cut off the connection between the terminal and the sprue material, and the terminal is discharged through the adjusting plate 13. The electric push rod 6 extends to raise the lifting rod 5, the transmission rod 15 resets first, the adjusting plate 13 flips to match the discharge angle of the sprue material, the positioning part 7 is released from pressing, the sprue material is discharged through the adjusting plate 13 for regeneration, and at the same time the baffle 4 resets, completing the process of separating and collecting the terminal and the sprue material.

[0048] Example 4, refer to Figures 1-10 The fourth embodiment of the present invention provides a terminal injection molding process based on recycled plastic waste, comprising the following steps: S1. Mold Closure and Injection: The main body 1 of the terminal injection molding machine drives the two terminal molds to merge, and the screw rotation generates thrust to inject molten plastic into the mold cavity; S2, Pressure Holding and Cooling: The screw continues to maintain a certain pressure, replenishing the mold cavity with the material needed due to the cooling and shrinkage of the plastic, until the product in the mold cools and sets; S3. Mold opening and ejection: The two molds separate, and the ejector mechanism ejects the product terminal and sprue material connector from the mold and discharges them through the discharge port. S4. Cutting and Separation: The conveyor 2 transports the product to the collection tank 3. The electric push rod 6 drives the lifting rod 5 to descend. The positioning part 7 presses down the sprue material. The cutting blade 8 cuts off the terminal and sprue material. The terminal and sprue material are discharged sequentially through the adjusting plate 13.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A terminal injection molding processing equipment based on recycled plastic waste, comprising a terminal injection molding machine body (1), characterized in that, It also includes a conveyor platform (2) fixedly installed on the material dropping area of ​​the main body (1) of the terminal injection molding machine. A collection trough (3) is fixedly installed on one side of the output end of the conveyor platform (2). The collection trough (3) is inclined. A lifting rod (5) is slidably installed at the lower end of the collection trough (3). Both ends of the lifting rod (5) extend out of the collection trough (3). An electric push rod (6) is fixedly connected between the end of the lifting rod (5) and the side wall of the collection trough (3). Multiple positioning parts (7) are linearly and equally spaced on the lifting rod (5). Cutting blades (8) are installed on both sides of the positioning parts (7). The height of the cutting blades (8) is higher than the height of the positioning parts (7). A baffle (4) is hinged on the lower side of the collection trough (3). The baffle (4) is in transmission cooperation with the lifting rod (5). The baffle (4) is provided with a U-shaped plate (11) fixedly connected to the conveyor table (2) on the lower side. Two inclined plates (12) are fixedly connected in a symmetrical structure inside the U-shaped plate (11). An adjustment plate (13) is provided between the two inclined plates (12). The adjustment plate (13) is rotatably connected to the U-shaped plate (11). The upper end of the adjustment plate (13) abuts against the inner wall of one of the inclined plates (12). A transmission rod (15) is vertically slidably connected to one side wall of the U-shaped plate (11). The transmission rod (15) is located below the lifting rod (5) and is used to drive the adjustment plate (13) to rotate.

2. The terminal injection molding equipment based on recycled plastic waste according to claim 1, characterized in that, The positioning component (7) includes a fixed rod (71) disposed on the lifting rod (5), a movable rod (72) is slidably connected inside the fixed rod (71), a pressure rod (73) is fixedly connected to the lower end of the movable rod (72), and an elastic element is fixedly connected between the movable rod (72) and the fixed rod (71).

3. The terminal injection molding equipment based on recycled plastic waste according to claim 2, characterized in that, The upper end of the fixed rod (71) and the upper end of the cutting blade (8) are both fixedly connected to a slide block (9). The slide block (9) is slidably sleeved on the lifting rod (5), and a bolt (10) is threadedly connected to the slide block (9). One end of the bolt (10) abuts against the lifting rod (5).

4. The terminal injection molding equipment based on recycled plastic waste according to claim 1, characterized in that, The upper end of the baffle (4) is connected to the side wall of the collection tank (3) by a spring hinge, and the two ends of the upper end of the baffle (4) extend to the outside of the collection tank (3) and are fixedly connected to a drive rod (14). The drive rod (14) is located on the lower side of the lifting rod (5).

5. The terminal injection molding equipment based on recycled plastic waste according to claim 1, characterized in that, A rack (17) is fitted on the transmission rod (15), and a transmission gear (16) is meshed on one side of the rack (17). One end of the adjusting plate (13) passes through the U-shaped plate (11) and is connected and fixed to the transmission gear (16). The lower end of the transmission rod (15) is fitted with an elastic element two, and the two ends of the elastic element two are respectively connected and fixed to the transmission rod (15) and the side wall of the collection groove (3).

6. The terminal injection molding equipment based on recycled plastic waste according to claim 5, characterized in that, The rack (17) is slidably sleeved on the transmission rod (15). A fixing block (18) is fixedly connected to the transmission rod (15). An elastic element is connected between the fixing block (18) and the rack (17). A positioning rod (19) is hinged to one side of the fixing block (18). A positioning hook (20) is provided at the lower end of the positioning rod (19). A positioning groove (21) that matches the positioning hook (20) is opened on the side of the rack (17) facing the positioning rod (19). A guide block (22) is provided above the positioning rod (19), and the guide block (22) is fixedly connected to the side wall of the collection tank (3).

7. The terminal injection molding equipment based on recycled plastic waste according to claim 1, characterized in that, The conveyor table (2) is provided with two correction plates (23), and two rotating shafts (24) are movably connected between the two correction plates (23). The rotating shafts (24) are rotatably connected to the conveyor table (2), and a chain is connected between the two rotating shafts (24). A driven gear (25) is fixedly connected to the end of one of the rotating shafts (24). A sector gear (26) is fixedly connected to one of the conveyor rollers of the conveyor table (2), and the sector gear (26) meshes with the driven gear (25). Both ends of the rotating shaft (24) are fixedly connected to rotating columns (27). An annular drive groove (28) is provided on the rotating column (27). A sliding rod (29) is provided on the annular drive groove (28). The sliding rod (29) is connected and fixed to the side wall of the first correction plate (23).

8. The terminal injection molding equipment based on plastic waste recycling according to claim 7, characterized in that, Multiple correction plates (30) are arranged linearly and equally between the two correction plates (23). The correction plates (30) are arranged perpendicular to the correction plates (23), and the ends of the correction plates (30) and the side walls of the correction plates (23) are hinged together by a connecting rod (31).

9. A terminal injection molding process based on recycled plastic waste, applied to the terminal injection molding equipment based on recycled plastic waste as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Mold closing and injection: The main body (1) of the terminal injection molding machine drives the two terminal molds to merge, and the screw rotates to generate thrust to inject the molten plastic into the mold cavity; S2, Pressure Holding and Cooling: The screw continues to maintain a certain pressure, replenishing the mold cavity with the material needed due to the cooling and shrinkage of the plastic, until the product in the mold cools and sets; S3. Mold opening and ejection: The two molds separate, and the ejector mechanism ejects the product from the mold and discharges it through the discharge port; S4. Cutting and Separation: The conveyor (2) transports the product to the collection tank (3), the electric push rod (6) drives the lifting rod (5) to descend, the positioning part (7) presses the sprue material, and the cutting knife (8) cuts off the terminal and sprue material. The terminal and sprue material are discharged in sequence through the adjusting plate (13).

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