Injection molding waste environmental protection recycling device

Abstract

The application discloses an injection molding waste environmental protection recycling device and relates to the technical field of plastic recycling and processing equipment. The device comprises a main body rack and a cleaning and separating box. A crushing base is fixedly arranged on the main body rack. A crusher box is fixedly arranged at the upper end of the crushing base. A crushing chamber is fixedly arranged in the crushing base. A crushing assembly is rotatably arranged between the crushing base and the crusher box. The upper end of the crushing chamber is provided with fixed crushing knives on both sides, which cooperate with the crushing assembly to crush the injection molding waste. The installation directions of the two groups of fixed crushing knives are opposite. A crushing driving motor is fixedly arranged at the upper end of the main body rack to drive the crushing assembly to rotate.

Description

Technical Field

[0001] This invention relates to the field of plastic recycling equipment technology, specifically to an environmentally friendly recycling device for injection molding waste. Background Technology

[0002] Injection molding processes generate a large amount of plastic scraps and defective products. Directly discarding these wastes would lead to resource waste and environmental pollution. Current recycling processes generally use mechanical crushing, but this faces multiple technical obstacles in practice.

[0003] During the collection and transportation stage, injection molding waste is easily mixed with dust particles from the environment. These tiny impurities, once embedded in the plastic matrix, are difficult to remove completely, leading to a decrease in the purity of the recycled raw materials and ultimately affecting the mechanical properties and appearance quality of the secondary processed products. More importantly, the waste often contains metal shavings or inserts. These hard impurities undergo rigid collisions with the rotating cutters during the crushing process, which not only accelerates the wear of the cutter edges but can also cause the cutters to break or even cause equipment shutdowns in severe cases.

[0004] Existing crushing equipment generally lacks a material-directing feeding mechanism, resulting in disordered accumulation of crushed particles within the crushing chamber, making continuous grading impossible. Operators are forced to repeatedly start and stop the equipment, manually refeeding semi-finished products to complete multiple crushing cycles. This intermittent operation significantly reduces processing efficiency and increases the risks associated with manual operation. The separation of the cleaning process from the crushing stage further exacerbates process complexity; when metal impurities are not sufficiently settled, residual metal particles enter the crushing chamber with the material, continuously threatening the safety of core components. Therefore, existing technologies urgently need improvement to address these issues. Summary of the Invention

[0005] The purpose of this application is to provide an environmentally friendly recycling device for injection molding waste, which solves the problems of existing devices being unable to effectively push waste, only being able to crush it once, and requiring repeated feeding.

[0006] The objective of this invention can be achieved through the following technical solutions: An environmentally friendly recycling device for injection molding waste includes a main frame and a washing and separation box. A crushing base is fixedly installed on the main frame, and a crushing machine box is fixedly installed on the upper end of the crushing base. A crushing chamber for crushing injection molding waste is fixedly installed inside the crushing base. A crushing component for crushing injection molding waste is rotatably installed between the crushing base and the crushing machine box. Fixed crushing blades are provided on both sides of the upper end of the crushing chamber to cooperate with the crushing component to crush the injection molding waste, and the two sets of fixed crushing blades are installed in opposite directions. A crushing drive motor for driving the crushing component to rotate is fixedly installed on the upper end of the main frame. The cleaning and separation box is used to clean the injection molding waste and precipitate the metal in the injection molding waste. The cleaning and separation box is equipped with a magnet for adsorbing magnetic metal. A transfer feeding device is set between the cleaning and separation box and the crusher box. The transfer feeding device is used to transport the cleaned and separated injection molding waste in the cleaning and separation box to the crusher box and then fall into the crushing base for crushing. The cleaning and separation box is equipped with a stirring feeding device for cleaning and separating the injection molding waste. The stirring feeding device is also used to send the cleaned and separated injection molding waste into the transfer feeding device. The cleaning and separation box is equipped with a feeding drive for driving the stirring feeding device to rotate.

[0007] Preferably, the transfer loading component includes a loading bracket fixedly installed on the side wall of the cleaning and separation box. Loading rollers are rotatably installed at both the upper and lower ends of the loading bracket. The two sets of loading rollers are connected by a loading conveyor belt. Several conveying baffles for conveying injection molding waste are evenly arranged on the loading conveyor belt.

[0008] Preferably, the feeding drive includes a feeding motor fixedly installed on the outer wall of the cleaning and separation tank. The output shaft of the feeding motor is fixedly connected to the stirring feeding component. A feeding linkage shaft is fixedly connected to the end of the stirring feeding component away from the feeding motor. A feeding linkage shaft is fixedly connected to one set of feeding rollers. The two sets of feeding linkage shafts are connected by a linkage transmission belt, so that a single drive unit can synchronously drive the transfer feeding component and the stirring feeding component.

[0009] Preferably, the mixing and feeding component includes a cleaning roller, which is rotatably mounted in the cleaning and separation box at both ends via threaded shafts. Several mixing support plates arranged in a circular array are fixedly provided on the outer periphery of the cleaning roller. A feeding slide is slidably connected to the mixing support plates, and an adjustment drive mechanism is provided on the inner side wall of the cleaning and separation box for driving the extension and retraction of the feeding slide. When the feeding slide retracts into the mixing support plates, the cleaning roller rotates, causing the mixing support plates to rotate and cleaning and mixing the injection molding waste in the cleaning and separation box. After the cleaning and mixing is completed, the adjustment drive mechanism drives the feeding slide to extend from its end. At this time, the rotation of the cleaning roller causes the mixing support plates and the extended feeding slide to rotate synchronously. The extended feeding slide can then scoop up the injection molding waste at the bottom of the cleaning and separation box and send it to the transfer feeding component for transfer and conveying to the crusher box for crushing.

[0010] Preferably, the side end of the stirring support plate is provided with a through support guide groove along the length direction, and the surface of the stirring support plate is provided with a plurality of evenly distributed support grooves, and the support grooves are connected to the support guide groove; the feeding slide includes a sliding support slidably disposed in the support guide groove, and a plurality of feeding support rods that slide in cooperation with the support groove are fixedly disposed on the sliding support, and a support pin connected to the adjustment drive mechanism is provided on one side of the sliding support.

[0011] Preferably, the adjustment drive mechanism includes a rotating turntable rotatably mounted on a threaded shaft and a slide guide seat fixedly disposed on the inner side wall of the cleaning and separation tank. Multiple sets of transmission rods are rotatably connected to the rotating turntable, with one end of each transmission rod rotatably connected to a support pin. A gear bushing is fixedly connected to the rotating turntable and threadedly connected to the outer circumference of the threaded shaft. A drive slide plate is slidably connected to the slide guide seat. A drive rack, meshing with the gear bushing, is fixedly disposed in the middle of the drive slide plate, and the drive rack is only disposed in a section of the middle of the drive slide plate. When the feeding slide is fully extended and fully retracted into the mixing support plate, the drive rack separates from the gear bushing, thus preventing interference between the gear bushing and the drive rack when the cleaning roller rotates. Furthermore, since the gear bushing is threadedly connected to the outer circumference of the threaded shaft, the threaded connection enables limit locking after the feeding slide is adjusted.

[0012] Preferably, the bottom of the crushing chamber is provided with a discharge port, and two sets of movable chamber seats for controlling its opening and closing are slidably arranged at the discharge port. A bidirectional screw is rotatably installed inside the crushing base, and the two sets of movable chamber seats are respectively threaded to the two ends of the bidirectional screw. A chamber seat guide rod is fixedly arranged inside the crushing base, and the two sets of movable chamber seats are slidably connected to the chamber seat guide rod. A discharge motor for driving the bidirectional screw to rotate is fixedly installed on the outer wall of the crushing base.

[0013] Preferably, the crushing assembly includes a crushing shaft cylinder, both ends of which are fixedly provided with cylinder connecting shafts. The cylinder connecting shafts are rotatably mounted on the crushing base and are connected to the crushing drive motor. A plurality of blade supports arranged in a circular array are fixedly provided on the outer periphery of the crushing shaft cylinder. Rotary crushing blades that cooperate with the fixed crushing blades are fixedly installed on the blade supports. The crushing assembly is provided with a pushing mechanism for agitating the injection molding waste.

[0014] Preferably, the feeding mechanism includes an inner fixing plate fixedly disposed inside the crushing shaft cylinder, a scraper plate slidably connected through the inner fixing plate, a spring connecting plate fixedly connected to one end of the scraper plate inside the crushing shaft cylinder, the spring connecting plate and the inner fixing plate being connected by multiple sets of reset springs, and the other end of the scraper plate slidably penetrating through the side wall of the crushing shaft cylinder. The crushing shaft cylinder is provided with a shaft through groove for the scraper to pass through. The side wall of the scraper is provided with a scraper pin. Both ends of the crushing shaft cylinder are provided with side through grooves for the scraper pin to slide through. The sides of the crushing base and the crusher box are provided with drive guide grooves that slide with the scraper pin. The drive guide grooves drive the scraper pin to slide back and forth along the side through grooves through their elliptical structure, thereby driving the scraper to extend and retract on the crushing shaft cylinder. When the scraper enters the interior of the crushing base and the crusher box, it begins to extend from the crushing shaft cylinder, thereby pushing the injection molding waste towards the fixed crushing blade for crushing. When the scraper approaches the fixed crushing blade, it retracts towards the crushing shaft cylinder to avoid interference with the fixed crushing blade and damage to the blade.

[0015] Preferably, the upper end of the crusher box is provided with a feeding trough for receiving and transferring injection molding waste materials. An adjusting groove for adjusting the length of the receiving trough opening is slidably provided in the feeding trough. A groove connecting plate is fixedly connected to the end of the adjusting groove. An adjusting telescopic cylinder is installed on the outer wall of the feeding trough, and the output end of the adjusting telescopic cylinder is fixedly connected to the groove connecting plate. A tilting telescopic cylinder is rotatably installed on the main frame. A tilting connecting plate is rotatably connected to the output end of the tilting telescopic cylinder. The tilting connecting plate is fixedly installed on the side wall of the crusher box. The crusher box is rotatably connected to the crushing base. The crusher box is driven to rotate by the tilting telescopic cylinder to separate the crushing base from the crusher box, which facilitates the inspection and maintenance of the crushing components installed in the crushing base.

[0016] The beneficial effects of this invention are as follows: By setting up a cleaning and separation box for pretreatment before crushing, dust and magnetic metal impurities in the waste are effectively removed, thereby improving the quality of the recycled waste and protecting the crushing blades from damage. Furthermore, through the synergistic action of the transfer feeding unit and the stirring feeding unit, automated and continuous conveying of the cleaned and separated waste to the crusher box is achieved. This solves the problems of existing devices being unable to effectively push waste, only being able to crush once, and requiring repeated feeding, significantly improving the automation level and operational efficiency of injection molding waste recycling. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is an isometric structural schematic diagram of the entire invention; Figure 3 This is a schematic diagram of the overall front view structure of the present invention; Figure 4 This is a top view of the crushing base of the present invention; Figure 5 This is the present invention. Figure 4 Schematic diagram of the cross-sectional structure along the AA direction; Figure 6 This is the present invention. Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic cross-sectional view of the middle section of the crushing base and crusher box of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the crushing component of the present invention; Figure 9 This is a schematic diagram illustrating the structural changes in the extension and retraction state of the scraper plate of the present invention; Figure 10 This is a schematic diagram of the structure of the mixing and feeding component of the present invention in a contracted state; Figure 11 This is a schematic diagram of the structure of the stirring and feeding component of the present invention in its extended state. Figure 12 This is a schematic diagram of the structure of the stirring support plate of the present invention; Figure 13 This is a schematic diagram of the feeding carriage of the present invention.

[0019] In the diagram: 1. Main frame; 2. Crushing base; 21. Crushing chamber; 22. Movable chamber seat; 23. Bidirectional lead screw; 24. Chamber seat guide rod; 25. Discharge motor; 26. Fixed crushing blade; 3. Crushing drive motor; 4. Crushing assembly; 41. Crushing shaft cylinder; 411. Blade support; 412. Shaft through groove; 413. Side through groove; 42. Cylinder connecting shaft; 43. Rotary crushing blade; 44. Scraper; 45. Scraper pin; 46. Inner fixing plate; 47. Spring connecting plate; 48. Return spring; 49. Drive guide groove; 5. Crusher box; 51. Feed chute; 52. Adjusting chute; 53. Chute connecting plate; 54. Adjusting telescopic cylinder; 55. Tilting telescopic cylinder 56. Cylinder; 6. Tilting connecting plate; 7. Cleaning and separating box; 8. Mixing and feeding component; 9. Cleaning roller; 10. Threaded shaft; 11. Mixing support plate; 12. Support groove; 13. Support guide groove; 14. Feeding slide; 15. Sliding support; 16. Feeding support rod; 17. Support pin; 18. Rotating turntable; 19. Transmission connecting rod; 10. Gear bushing; 11. Drive slide plate; 12. Drive rack; 13. Slide plate guide seat; 14. Transfer feeding component; 15. Feeding support; 16. Feeding roller; 17. Feeding conveyor belt; 18. Conveying baffle; 19. Feeding drive; 10. Feeding motor; 10. Feeding linkage shaft; 11. Linkage transmission belt. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Traditional injection molding waste recycling equipment often suffers from problems such as dust in the waste affecting recycling quality and metal impurities easily damaging the crushing blades. In addition, existing crushing devices are usually unable to effectively push the waste inside, resulting in only single-pass crushing. If multiple crushing is required, manual feeding must be repeated, leading to low operating efficiency and cumbersome operation.

[0022] For this, please refer to Figures 1-13 As shown, this application proposes an environmentally friendly recycling device for injection molding waste. By setting up a main frame 1, a crushing base 2, a crushing box 5, a crushing chamber 21, a crushing component 4, a fixed crushing blade 26, a crushing drive motor 3, a cleaning and separation box 6, a magnet, a transfer feeding component 8, a mixing feeding component 7, and a feeding drive 9, it realizes the pre-cleaning, metal separation, and automated crushing and conveying of injection molding waste, effectively solving the problems of waste impurities and low crushing efficiency in the prior art.

[0023] Specifically, the main frame 1, serving as the supporting structure for the entire device, can be welded from structural steel, providing an installation platform and ensuring structural stability. The crushing base 2 is fixedly mounted on the main frame 1, forming a crushing chamber 21 inside to hold the injection molding waste to be crushed. The crusher box 5 is fixedly mounted on the upper end of the crushing base 2, forming a crushing cavity together with the crushing base 2, used to guide the waste into the crushing chamber 21.

[0024] The crushing assembly 4 is rotatably mounted between the crushing base 2 and the crusher housing 5. It can be a rotating shaft with multiple crushing blades, supported by bearing seats. Fixed crushing blades 26 are located on both sides of the upper end of the crushing chamber 21, cooperating with the blades on the crushing assembly 4 to shear and crush the injection molding waste. The installation directions of the two sets of fixed crushing blades 26 can be set to opposite directions, for example, one set of blades facing clockwise and the other set facing counterclockwise, to improve crushing efficiency. The crushing drive motor 3 is fixedly mounted on the upper end of the main frame 1 and is connected to the crushing assembly 4 through a transmission mechanism (such as belt drive or gear drive) to provide it with rotational power.

[0025] The cleaning and separation tank 6 is used for pre-treatment of injection molding waste. It can be a tank with a certain volume, made of a corrosion-resistant material, and can be filled with cleaning fluid. Magnets, such as permanent magnets or electromagnets, are installed inside the cleaning and separation tank 6 to adsorb magnetic metallic impurities in the cleaning fluid, preventing them from entering the subsequent crushing stage.

[0026] The transfer loading unit 8 is located between the washing and separation box 6 and the crushing box 5, and is used to transport the washed and separated injection molding waste to the crushing box 5. The transfer loading unit 8 can adopt a chute structure to guide the waste from the washing and separation box 6 to the crushing box 5 by gravity; or it can adopt an intermittently operating lifting mechanism, such as a manually operated bucket or grab, to transfer the waste in batches.

[0027] The stirring and feeding component 7 is located inside the cleaning and separation tank 6. It can be a rotating shaft with stirring blades, supported inside the cleaning and separation tank 6 by bearings. During the cleaning process, the rotation of the stirring and feeding component 7 can agitate the cleaning liquid and waste material, promoting the separation of dust and impurities. After cleaning, the rotation direction or structure of the stirring and feeding component 7 can be adjusted so that it can scoop up the separated injection molding waste and send it to the transfer feeding component 8.

[0028] The feeding drive 9 is mounted on the washing and separation tank 6 and is used to drive the stirring and feeding component 7 to rotate. The feeding drive 9 can be a separate motor, which is directly connected to the rotating shaft of the stirring and feeding component 7 via a coupling or reducer to provide it with the required rotational power.

[0029] The environmentally friendly recycling device for injection molding waste in this embodiment effectively removes dust and magnetic metal impurities from the waste by pre-treating it in a cleaning and separation box 6 before crushing. This improves the quality of the recycled waste and protects the crushing blades from damage. Furthermore, the coordinated action of the transfer feeding unit 8 and the stirring feeding unit 7 enables automated and continuous conveying of the cleaned and separated waste to the crusher box 5. This solves the problems of existing devices being unable to effectively push waste, only capable of single-stage crushing, and requiring repeated feeding, significantly improving the automation level and operational efficiency of injection molding waste recycling.

[0030] In some of the solutions mentioned above in this application, a transfer loading component is proposed to transport the injection molding waste after cleaning and separation in the cleaning and separation box to the crusher box and then fall into the crushing base for crushing. However, the existing solutions do not provide a specific implementation structure for the transfer loading component, which cannot guarantee the stability of the injection molding waste transportation process. The injection molding waste is prone to slipping during the inclined conveying and lifting process, and it is impossible to stably transport the waste to the designated position, which will affect the normal progress of the subsequent crushing process. Therefore, it is necessary to clearly optimize the structure of the transfer loading component.

[0031] In this regard, this application further proposes an environmentally friendly recycling device for injection molding waste. Please refer to [link / reference]. Figures 1-3 As shown, the transfer loading component 8 includes a loading bracket 81 fixedly installed on the side wall of the cleaning and separation box 6. Loading rollers 82 are rotatably installed at both the upper and lower ends of the loading bracket 81. The two sets of loading rollers 82 are connected by a loading conveyor belt 83. Several conveying baffles 84 for conveying injection molding waste are evenly arranged on the loading conveyor belt 83.

[0032] Through the above technical solution, the transfer feeding component 8 proposed in this application can reliably and stably complete the lifting and conveying operation of injection molding waste after cleaning, effectively avoiding the impact of waste slippage on the feeding stability during the conveying process. Specifically, the feeding bracket 81 is fixedly installed on the side wall of the cleaning separation box 6, providing a stable installation support foundation for the entire transfer conveying structure, ensuring the overall stability of the structure during the conveying operation. At the same time, relying on the cleaning separation box 6, the overall structure is integrated and installed, making the equipment structure more compact and not occupying too much extra space. Feeding rollers 82 are rotatably installed at the upper and lower ends of the feeding bracket 81, providing a stable installation and transmission foundation for the feeding conveyor belt 83, ensuring that the feeding conveyor belt 83 can rotate stably according to the preset trajectory, providing reliable power transmission for the conveying operation. The two sets of feeding rollers 82 are connected by the feeding conveyor belt 83. Through the cyclic rotation of the feeding conveyor belt 83, the injection molding waste placed on the conveyor belt can be continuously moved, realizing a continuous and stable transfer feeding operation. Most importantly, the multiple conveying baffles 84 evenly arranged on the feeding conveyor belt 83 can effectively block and lift the injection molding waste. During the process of tilting and lifting the waste, the problem of the injection molding waste sliding down the conveyor belt due to gravity is significantly avoided. This allows the injection molding waste to be stably and reliably transported to the feeding position of the upper crusher box 5, ensuring the reliability of the conveying operation. This, in turn, ensures a stable supply of material for the subsequent crushing process and improves the operating efficiency and automation level of the entire recycling device.

[0033] In some embodiments described above in this application, a transfer feeding unit is proposed to transport the cleaned and separated injection molding waste to the crusher box. At the same time, a stirring feeding unit is set up to complete the cleaning, separation and stirring of the injection molding waste and send the processed waste to the transfer feeding unit. Both require corresponding drive units to provide power. However, in this process, if separate drive units are configured for the transfer feeding unit and the stirring feeding unit, it will increase the manufacturing cost of the device, make the overall structure of the device more complex, and increase the complexity of the control link, which is not conducive to the low-cost and miniaturized design of the recycling device.

[0034] For this, please refer to Figures 1-3As shown, the feeding drive 9 includes a feeding motor 91 fixedly installed on the outer wall of the washing and separation tank 6. The output shaft of the feeding motor 91 is fixedly connected to the stirring feeding component 7. The end of the stirring feeding component 7 away from the feeding motor 91 is fixedly connected to a feeding linkage shaft 92. A feeding linkage shaft 92 is fixedly connected to one set of feeding rollers 82. The two sets of feeding linkage shafts 92 are connected by a linkage transmission belt 93, so that a single drive unit can synchronously drive the transfer feeding component 8 and the stirring feeding component 7.

[0035] Through the above technical solution, this application utilizes a single feeding motor 91 as the drive unit, synchronously driving the mixing feeding component 7 and the transfer feeding component 8 via mechanical linkage. Specifically, the output shaft of the feeding motor 91 directly drives the mixing feeding component 7 for cleaning, mixing, and waste material lifting. Simultaneously, a feeding linkage shaft 92 is installed on the feeding rollers 82 of both the mixing feeding component 7 and the transfer feeding component 8, and the two are connected by a linkage transmission belt 93, enabling the power of the feeding motor 91 to be efficiently and synchronously transmitted to the transfer feeding component 8. This design effectively avoids the increased manufacturing costs, complex device structure, and complex control links associated with configuring separate drive units for the mixing feeding component 7 and the transfer feeding component 8. The use of a single drive unit not only significantly reduces the overall cost of the device and simplifies the mechanical structure and electrical control system, but also ensures precise synchronization of the cleaning, mixing, waste material lifting, and transfer conveying processes, avoiding malfunctions such as waste accumulation or conveying interruptions due to asynchrony, thus improving the operating efficiency and reliability of the recycling device. In addition, the feeding motor 91 is fixedly installed on the outer wall of the washing and separation box 6, which not only facilitates the installation and maintenance of the equipment, but also effectively saves internal space and helps to achieve a compact design of the device.

[0036] In some of the solutions described above in this application, a stirring and feeding component is proposed to clean, separate, and stir the injection molding waste in the cleaning and separation tank, while simultaneously feeding the cleaned and separated waste into a transfer feeding component. However, in this process, a conventional stirring and feeding component cannot simultaneously perform both cleaning and stirring and feeding / scooping functions. If a fixed-size scooping structure is used, the protruding scooping structure will affect the cleaning and stirring effect during the cleaning and stirring stage, and will also hinder the tumbling of the waste in the cleaning tank, making it impossible to effectively separate dust and metal impurities. If a retractable scooping structure is not used, it is impossible to stably transport the cleaned waste from the bottom of the cleaning and separation tank to the transfer feeding component, affecting the smooth operation of the entire recycling process.

[0037] In this regard, this application further proposes an environmentally friendly recycling device for injection molding waste. Please refer to [link / reference]. Figures 10-13As shown, the mixing and feeding component 7 includes a cleaning roller 71. Both ends of the cleaning roller 71 are rotatably mounted inside the cleaning and separation box 6 via threaded shafts 72. Several mixing support plates 73 arranged in a circular array are fixedly arranged around the outer periphery of the cleaning roller 71. A feeding carriage 74 is slidably connected to the mixing support plates 73, and an adjustment drive mechanism is provided on the inner side wall of the cleaning and separation box 6 to drive the extension and retraction of the feeding carriage 74. When the feeding carriage 74 retracts into the mixing support plates 73, the cleaning roller 71 rotates, causing the mixing support plates 73 to rotate and clean and mix the injection molding waste in the cleaning and separation box 6. After cleaning and mixing are completed, the adjustment drive mechanism causes the feeding carriage 74 to extend beyond its end. At this time, the rotation of the cleaning roller 71 causes the mixing support plates 73 and the extended feeding carriage 74 to rotate synchronously. The extended feeding carriage 74 can then scoop up the injection molding waste from the bottom of the cleaning and separation box 6 and, with the rotation of the cleaning roller 71, feed it into the transfer feeding component 8 for transfer and conveying to the crusher box 5 for crushing.

[0038] Through the above technical solution, this application, by setting a retractable feeding slide 74, enables the mixing and feeding component 7 to flexibly switch functions according to the working stage. During the cleaning and mixing stage, the feeding slide 74 retracts into the mixing support plate 73, avoiding the obstruction of the protruding structure to the turning of the injection molding waste and the flow of the cleaning liquid, thereby ensuring sufficient cleaning and mixing, effectively separating dust and metal impurities in the waste, and significantly improving the cleaning effect. After the cleaning and mixing is completed, the adjustment drive mechanism drives the feeding slide 74 to extend. At this time, the extended feeding slide 74 can effectively pick up the cleaned injection molding waste from the bottom of the cleaning separation box 6, and with the rotation of the cleaning roller 71, it is stably and smoothly transported to the transfer feeding component 8, and then sent to the crusher box 5 for subsequent processing. This design cleverly solves the problem that the traditional mixing and feeding component has a single function and cannot take into account both cleaning and feeding efficiency. It realizes the optimized operation of the same set of equipment in different working modes, simplifies the equipment structure, saves space, and significantly improves the automation level and overall efficiency of injection molding waste recycling and processing.

[0039] In some embodiments of this application, a stirring support plate and a retractable feeding slide are proposed to retract during the washing and stirring stage and extend during the material retrieval and feeding stage, thus completing the two functions of stirring and washing and material retrieval and feeding. However, in the process of implementation, if there is no reasonable sliding guide structure, the feeding slide is prone to deviation and jamming when it extends and retracts. At the same time, the structural strength of the feeding slide is insufficient after it extends, and it is prone to shaking and deformation when retrieving injection molding waste, which affects the stability of material retrieval and feeding and also shortens the service life of the structure.

[0040] For this, please refer to Figures 10-13As shown, this application further proposes that the side end of the above-mentioned stirring support plate 73 is provided with a through support guide groove 732 along the length direction, the surface of the stirring support plate 73 is provided with a plurality of evenly distributed support grooves 731, and the support grooves 731 are connected to the support guide grooves 732; the feeding slide 74 includes a sliding support 741 slidably disposed in the support guide groove 732, a plurality of feeding support rods 742 that are slidably engaged with the support grooves 731 are fixedly disposed on the sliding support 741, and a support pin 743 connected to the adjustment drive mechanism is provided on one side of the sliding support 741.

[0041] Specifically, a through-type support guide groove 732 is provided along the length of the side end of the mixing support plate 73. This support guide groove 732 is designed to provide a stable and continuous guiding path for the sliding of the feeding carriage 74. Its "through" characteristic ensures that the sliding components receive continuous guidance throughout the entire extension stroke, effectively preventing deviation during sliding. The support guide groove 732 can be implemented in various forms; for example, it can be a U-shaped or C-shaped cross-section groove integrally formed or milled on the side of the mixing support plate 73; or it can be constructed by fixing two parallel guide rails or flanges to the side end of the mixing support plate 73.

[0042] Meanwhile, the surface of the mixing support plate 73 is provided with several evenly distributed support grooves 731, and the support grooves 731 are connected to the support guide grooves 732. The main function of these support grooves 731 is to provide precise sliding space and additional support for the feeding support rod 742, thereby distributing the load during material retrieval. Its "evenly distributed" characteristic ensures that the feeding slide 74 can obtain balanced support force when extended. The "connection" design between the support grooves 731 and the support guide grooves 732 makes the guidance of the feeding support rod 742 and the overall guidance of the sliding support 741 work together. For example, the support grooves 731 can be represented as rectangular or elongated holes precisely cut into the surface of the mixing support plate 73, which extend directly to and connect to the support guide grooves 732; or, the support grooves 731 can also be defined by a series of parallel ribs spaced apart on the surface of the mixing support plate 73, and the space between the ribs constitutes the support grooves 731.

[0043] Furthermore, the loading carriage 74 includes a sliding bracket 741 slidably disposed within the support guide groove 732. This sliding bracket 741 is the core moving component of the loading carriage 74, serving as a unified mounting base, bearing and synchronously driving the extension and retraction of all loading support rods 742. Its "sliding arrangement" indicates that the sliding bracket 741 can move smoothly within the support guide groove 732. The sliding bracket 741 can be designed as a solid rod or block that matches the shape of the inner cavity of the support guide groove 732, and its surface can be integrated with low-friction materials or sliding bearings to optimize sliding performance; alternatively, the sliding bracket 741 can also be a frame structure with guide elements at its edges or specific locations that cooperate with the inner wall of the support guide groove 732.

[0044] Several feeding rods 742 are fixedly mounted on the sliding bracket 741, slidingly engaging with the bracket groove 731. These feeding rods 742 are the actuating components that directly contact and retrieve the injection molding waste. Their "fixed mounting" on the sliding bracket 741 ensures synchronized movement with it. The "sliding engagement" between the feeding rods 742 and the bracket groove 731 ensures stability and guidance during extension and retraction. For example, the feeding rods 742 can be cylindrical or rectangular cross-section rods, securely mounted on the sliding bracket 741 through welding, bolting, or other methods, and precisely machined to fit the dimensions of the bracket groove 731; alternatively, the feeding rods 742 can be an integral extension of the sliding bracket 741, formed through integrated machining to improve structural strength and fit accuracy.

[0045] Furthermore, a support pin 743 connected to the adjustment drive mechanism is provided on one side of the sliding bracket 741. This support pin 743 is the mechanical connection point between the adjustment drive mechanism and the feeding slide 74, used to transmit driving force and realize the extension and retraction of the feeding slide 74. The support pin 743 can be a cylindrical pin or stud fixed to the side of the sliding bracket 741, used to connect the connecting rod or push rod of the adjustment drive mechanism; alternatively, it can be a lug or U-shaped connector with a hole to facilitate the connection of the adjustment drive mechanism.

[0046] Through the above technical solution, this application optimizes the cooperation structure between the mixing support plate 73 and the feeding slide 74, effectively solving the problem of possible offset and jamming during the extension and retraction of the feeding slide 74, and significantly improving the structural stability of the feeding slide 74 during extension operations, thereby ensuring the reliable operation of material retrieval and feeding. Specifically, a support guide groove 732 extending along the length direction is provided on the side end of the mixing support plate 73, providing a unified and stable sliding guide foundation for the sliding support 741, ensuring the stability of the overall movement direction of the sliding support 741 and avoiding offset. At the same time, setting the support guide groove 732 on the side end avoids occupying the plate space of the mixing support plate 73, thus not hindering the operation of mixing and cleaning injection molding waste. Several evenly distributed support grooves 731 connected to the support guide grooves 732 are provided on the plate surface of the mixing support plate 73, providing an independent sliding space for each feeding support rod 742, and forming multi-position guide support in conjunction with the support guide grooves 732, so that each feeding support rod 742 can maintain a stable movement direction. The sliding bracket 741 is slidably positioned within the bracket guide groove 732, serving as a unified mounting base to drive all the feeding rods 742 to move synchronously. This ensures the consistency of the extension and retraction movements of all the feeding rods 742, effectively preventing misalignment and jamming of individual feeding rods 742. The feeding rods 742 are fixed to the sliding bracket 741 and slide in cooperation with the bracket groove 731, allowing multiple feeding rods 742 to evenly distribute the force during material retrieval. This results in a more uniform overall force distribution when retrieving injection molding waste, significantly improving the overall structural load-bearing capacity and effectively preventing deformation caused by excessive localized stress. Furthermore, the bracket groove 731 provides additional guide limits for the feeding rods 742, further reducing the probability of jamming during extension and retraction. A bracket pin 743 connected to the adjustment drive mechanism is provided on one side of the sliding bracket 741, simplifying the transmission path for the adjustment drive mechanism to move the entire sliding bracket 741. This makes the transmission more direct and reliable, further reducing the possibility of jamming during transmission.

[0047] In some embodiments described above, an adjustment drive mechanism is proposed to drive the feeding slide to extend and retract, thereby meeting the needs of the feeding slide retracting during the cleaning and mixing stage to avoid interfering with the mixing, and the feeding slide extending to retrieve injection molding waste during the feeding stage. However, in its implementation, conventional adjustment drive mechanisms are difficult to automatically and stably lock the position of the feeding slide after completing the extension and retraction adjustment, and are also prone to interfering with the adjustment structure when the cleaning roller rotates, hindering the normal operation of mixing and feeding, and failing to guarantee the stability of the feeding slide position under different operating stages.

[0048] For this, please refer to Figures 10-13As shown, this application further proposes an adjustment drive mechanism for driving the extension and retraction of the loading carriage 74. This adjustment drive mechanism typically refers to a device capable of precisely controlling the position and movement of mechanical components. It can be implemented in various forms. For example, it can use an electric push rod, hydraulic cylinder, or pneumatic cylinder as a power source, transmitting power to the driven component through a linkage mechanism or rack and pinion mechanism to achieve its extension, retraction, or reciprocating motion. Alternatively, it can use a stepper motor or servo motor to drive a lead screw and nut mechanism, converting rotary motion into precise linear motion, thereby achieving precise positioning and adjustment of the loading carriage 74.

[0049] The adjustment drive mechanism includes a rotating disk 75 rotatably mounted on a threaded shaft 72. The rotating disk 75 is a disc-shaped component rotatable about its central axis, serving as a center for transmitting torque or motion. For example, the rotating disk 75 can be a circular metal disk with a central hole, rotatably connected to the threaded shaft 72 via bearings or bushings. Multiple sets of transmission links 76 are rotatably connected to the rotating disk 75, with one end of each link 76 rotatably connected to a support pin 743. The transmission link 76 is a rigid rod used for transmitting force and motion, its two ends typically rotatably connected to other components via pins or ball joints, thereby achieving complex motion trajectories or torque transmission.

[0050] A gear bushing 77 is fixedly connected to the rotating turntable 75, and the gear bushing 77 is threaded to the outer circumference of the threaded shaft 72. The gear bushing 77 is a component that combines the functions of a gear and a threaded sleeve. It has teeth on its outer or inner circumference for meshing with a rack or gear to transmit power, and it has threads on its inside or outside for forming a threaded connection with the threaded shaft 72.

[0051] Furthermore, the drive rack 781 is only located in the middle section of the drive slide plate 78. When the feeding slide 74 is fully extended and fully retracted into the stirring support plate 73, the drive rack 781 disengages from the gear sleeve 77. This design aims to achieve intermittent engagement, meaning that engagement only occurs when the position of the feeding slide 74 needs adjustment. For example, by precisely calculating the length of the drive rack 781 and the stroke of the drive slide plate 78, it can be ensured that the drive rack 781 completely disengages from the gear sleeve 77 when the feeding slide 74 reaches its limit extension / retraction position; alternatively, a mechanical limit or sensor can be installed at the end of the stroke of the drive slide plate 78, and when a preset position is reached, the control system disengages the drive rack 781. This ensures that the gear sleeve 77 does not interfere with the drive rack 781 when the cleaning roller 71 rotates, and because the gear sleeve 77 is threaded onto the outer circumference of the threaded shaft 72, the threaded connection enables limit locking after the feeding slide 74 is adjusted. The threaded locking mechanism utilizes the self-locking characteristic of threaded connections to fix the position through the friction of the threaded pair when no external driving force is applied. For example, when the gear bushing 77 and the threaded shaft 72 are connected by a trapezoidal or rectangular thread, due to the small helix angle of the thread, the threaded pair can achieve self-locking through its own friction under axial load, preventing reverse rotation. Alternatively, the locking effect can be further enhanced by selecting a material with a high coefficient of friction or by applying a preload at the threaded connection.

[0052] Through the above technical solution, this application proposes an improved adjustment drive mechanism, which can effectively solve the stability problem after the position adjustment of the feeding carriage and the interference problem with the rotation operation of the cleaning roller. Specifically, this solution rotatably mounts the rotating turntable 75 on the threaded shaft 72, and uses multiple sets of transmission connecting rods 76 to convert the rotation of the rotating turntable 75 into the synchronous extension and retraction of the feeding carriage 74, ensuring that all feeding carriages 74 are in the same state during adjustment, and avoiding interference with the mixing or feeding operation due to uneven extension and retraction of some carriages.

[0053] Furthermore, this solution fixes the gear bushing 77 to the rotating turntable 75 and threads it onto the outer circumference of the threaded shaft 72. This threaded connection naturally possesses self-locking characteristics; that is, once the adjustment is completed and the driving force is removed, the gear bushing 77 can automatically lock its position by relying on the friction of the threaded pair, thereby stably maintaining the extension and retraction state of the feeding carriage 74. This eliminates the need for additional complex locking mechanisms, significantly simplifying the structure and reducing costs.

[0054] Meanwhile, this design cleverly incorporates a drive rack 781, positioned only in the middle section of the drive slide plate 78. This design ensures that the drive rack 781 automatically disengages from the gear sleeve 77 when the feeding carriage 74 is fully extended or fully retracted into the mixing support plate 73. Consequently, during normal cleaning and mixing operations of the cleaning roller 71, the gear sleeve 77 will not interfere with the drive rack 781, thus guaranteeing smooth rotation of the cleaning roller 71 and preventing equipment damage or operational interruptions caused by conflicts between the adjustment mechanism and the working components.

[0055] This solution enables convenient and synchronous adjustment of the feeding carriage 74, effectively solves the problem of positional stability after adjustment, and completely eliminates interference with the rotation of the cleaning roller 71 through intermittent meshing design, greatly improving the reliability and operating efficiency of the injection molding waste recycling device in the two different operation stages of cleaning and feeding.

[0056] In some of the solutions mentioned above in this application, a crushing chamber is proposed to accommodate injection molding waste for crushing operations. However, in the actual crushing process, the opening and closing of the crushing chamber discharge port cannot be flexibly controlled, and the discharge timing cannot be adjusted according to the crushing progress. Waste that is not fully crushed is easily discharged prematurely, and waste that has been crushed cannot be discharged smoothly and in a timely manner. This not only affects the uniformity and quality of the crushed waste, but also makes it inconvenient to control the overall process of the crushing operation, and it is difficult to adapt to different crushing processing needs.

[0057] For this, please refer to Figures 1-9 As shown, the bottom of the crushing chamber 21 is provided with a discharge port. Two sets of movable chamber seats 22 for controlling the opening and closing of the discharge port are slidably arranged at the discharge port. A bidirectional screw 23 is rotatably installed inside the crushing base 2. The two sets of movable chamber seats 22 are respectively threaded to the two ends of the bidirectional screw 23. A chamber seat guide rod 24 is fixedly arranged inside the crushing base 2. The two sets of movable chamber seats 22 are slidably connected to the chamber seat guide rod 24. A discharge motor 25 for driving the bidirectional screw 23 to rotate is fixedly installed on the outer wall of the crushing base 2.

[0058] Through the above technical solution, this application effectively solves the problems of inflexible on / off control of the discharge port of the crushing chamber and difficulty in adjusting the discharge timing. By utilizing the synchronous sliding of the two sets of movable chamber seats 22, the opening of the discharge port can be flexibly adjusted according to the actual needs of the crushing operation, and even completely closed. This allows the injection molding waste to be fully crushed within the crushing chamber 21, preventing premature discharge of insufficiently crushed waste, thereby significantly improving the uniformity and quality of the crushed waste. Simultaneously, after the crushing operation is completed, the discharge port can open promptly and smoothly, ensuring rapid discharge of the crushed waste and improving the efficiency of the crushing operation. The cooperation between the bidirectional lead screw 23 and the discharge motor 25 realizes automated and precise control of the discharge port opening and closing, simplifying operation, reducing the need for manual intervention, and thus improving the automation level and operational stability of the entire injection molding waste environmental recycling device.

[0059] In some of the solutions described above in this application, a crushing assembly is proposed for crushing injection molding waste. However, in this process, only a crushing blade structure is provided, and there is no active pushing structure for the injection molding waste in the crushing chamber. The injection molding waste is prone to stay in the non-working area of ​​the crushing chamber and cannot be moved to the crushing area where the blade cooperates. Only a single crushing operation can be completed. To achieve sufficient crushing, the waste needs to be repeatedly fed into the device, which is cumbersome and reduces the overall efficiency of crushing and recycling. At the same time, it is easy for some waste to be insufficiently crushed, which affects the quality of subsequent injection molding waste recycling and reuse.

[0060] In this regard, this application further proposes an environmentally friendly recycling device for injection molding waste. Please refer to [link / reference]. Figures 1-9 As shown, the crushing assembly 4 includes a crushing cylinder 41, with a cylinder connecting shaft 42 fixedly installed at both ends of the crushing cylinder 41. The cylinder connecting shaft 42 is rotatably mounted on the crushing base 2 and is connected to the crushing drive motor 3. Several blade supports 411 arranged in a ring array are fixedly installed on the outer periphery of the crushing cylinder 41. Rotating crushing blades 43 that cooperate with the fixed crushing blades 26 are fixedly installed on the blade supports 411. The crushing assembly 4 is provided with a pushing mechanism for pushing the injection molding waste.

[0061] Through the above technical solution, the pushing mechanism installed on the crushing component 4 can rotate synchronously with the crushing component 4, actively pushing and propelling the injection molding waste in the crushing chamber 21 during the crushing operation. This active pushing mechanism effectively solves the problem in traditional crushing devices where injection molding waste easily stays in the non-operating area of ​​the crushing chamber and cannot be fully crushed. The pushing mechanism continuously guides the waste to the cooperation area between the rotary crusher 43 and the fixed crusher 26, ensuring that all waste can be fully sheared and crushed, avoiding waste accumulation and jamming. This not only significantly improves the crushing efficiency of injection molding waste and reduces the tedious operation of repeated feeding, but also ensures the uniformity and quality of the crushed waste, providing high-quality raw materials for subsequent recycling and reuse. At the same time, because the waste is effectively pushed, uneven wear of the blades caused by local overload or idling is avoided, thereby extending the service life of the rotary crusher 43 and the fixed crusher 26 and reducing the maintenance cost of the equipment.

[0062] In some of the solutions mentioned above in this application, a pushing mechanism is proposed to move the injection molding waste and assist the crushing component in completing the crushing operation. However, in this process, if the existing structure adopts a fixed pushing structure, when the pushing structure rotates with the crushing component to the position of the fixed crushing blade, it is easy to interfere and collide with the fixed crushing blade, causing damage to the blade. If the pushing structure is not set, the injection molding waste is easy to accumulate inside the crushing chamber and cannot automatically move to the position where the rotating crushing blade and the fixed crushing blade cooperate for crushing. Some waste cannot be effectively crushed and multiple feedings are required, which increases the processing flow and reduces the recycling efficiency.

[0063] For this, please refer to Figures 1-9As shown, this application proposes a feeding mechanism, which includes an inner fixing plate 46 fixedly disposed inside the crushing shaft cylinder 41. A scraper 44 is slidably connected through the inner fixing plate 46. A spring connecting plate 47 is fixedly connected to one end of the scraper 44 inside the crushing shaft cylinder 41. The spring connecting plate 47 and the inner fixing plate 46 are connected by multiple sets of reset springs 48. The other end of the scraper 44 slidably passes through the side wall of the crushing shaft cylinder 41. The crushing shaft cylinder 41 is provided with a shaft through groove 412 for the scraper plate 44 to pass through. The side wall of the scraper plate 44 is provided with a scraper pin 45. Both ends of the crushing shaft cylinder 41 are provided with side through grooves 413 for the scraper pin 45 to slide through. The sides of the crushing base 2 and the crusher box 5 are provided with drive guide grooves 49 that slide with the scraper pin 45. The drive guide grooves 49 drive the scraper pin 45 to slide back and forth along the side through grooves 413 through their elliptical structure, thereby driving the scraper plate 44 to move telescopically on the crushing shaft cylinder 41. When the scraper plate 44 enters the interior of the crushing base 2 and the crusher box 5, it begins to extend from the crushing shaft cylinder 41, thereby pushing the injection molding waste to move toward the fixed crushing blade 26 for crushing. When the scraper plate 44 approaches the fixed crushing blade 26, it retracts toward the crushing shaft cylinder 41 to avoid interference with the fixed crushing blade 26 and damage to the blade.

[0064] Through the above technical solution, the feeding mechanism of this application can automatically extend and retract the scraper 44 by relying on the rotation of the crushing component 4 itself, without the need for an additional drive unit. This effectively solves the technical problems of injection molding waste accumulating in the crushing chamber, failing to be fully crushed, and interference and collision between the feeding structure and the fixed crushing blade 26. When the crushing component 4 rotates, the scraper pin 45, guided by the elliptical drive guide groove 49, periodically drives the scraper 44 to extend and retract on the crushing shaft cylinder 41. Specifically, when the scraper 44 rotates into the internal area of ​​the crushing base 2 and the crusher box 5, the contour of the drive guide groove 49 will cause the scraper pin 45 to move outward, so that the scraper 44 extends out of the crushing shaft cylinder 41. At this time, the extended scraper 44 can effectively move the injection molding waste accumulated in the crushing chamber and push it to the crushing position where the rotating crushing blade 43 and the fixed crushing blade 26 cooperate, ensuring that all waste can be fully crushed, avoiding the problems of waste accumulation and the need for repeated feeding, and significantly improving the efficiency of crushing processing.

[0065] Furthermore, when the scraper 44 approaches the fixed crusher 26 as the crushing cylinder 41 rotates, the elliptical structure of the drive guide groove 49 guides the scraper pin 45 to move inward towards the crushing cylinder 41, causing the scraper 44 to automatically retract back into the crushing cylinder 41. This automatic retraction mechanism cleverly avoids collisions and interference between the scraper 44 and the fixed crusher 26, effectively protecting the blade from damage, extending its service life, and improving the safety and stability of the crushing operation. In addition, since the pushing mechanism is installed entirely inside the crushing cylinder 41 and rotates synchronously with it, the pushing action is synchronized with the crushing action. This eliminates the need for an independent power source and complex control system, simplifying the overall device structure and reducing manufacturing costs and control complexity. The cooperation of the inner fixed plate 46, the spring connecting plate 47, and the return spring 48 provides stable sliding support and elastic return capability for the scraper 44, ensuring its smooth and reliable movement. The shaft through groove 412 and the side through groove 413 provide precise movement trajectories for the scraper plate 44 and the scraper pin 45, ensuring coordinated operation between the components. In summary, this application achieves a harmonious unity between the pushing operation and tool protection through ingenious mechanical linkage design, significantly improving the crushing efficiency, safety, and reliability of the injection molding waste recycling device.

[0066] In some embodiments described above, an environmentally friendly recycling device for injection molding waste is proposed, which completes the crushing operation of injection molding waste through a crusher box and a crushing base. However, in its implementation, the length of the feed chute at the top of the crusher box, used to receive the injection molding waste conveyed by the transfer loading component, is fixed. This makes it impossible to adjust the length of the feed chute according to the discharge position of the transfer loading component, easily leading to spillage of injection molding waste, resulting in material waste and environmental mess. Furthermore, the crusher box is generally fixedly connected to the crushing base. When the crushing components inside the crushing base malfunction and require maintenance, the crusher box cannot be quickly separated from the crushing base. The disassembly and assembly operations are cumbersome and inconvenient, delaying maintenance time and affecting maintenance efficiency.

[0067] In response, this application proposes an environmentally friendly recycling device for injection molding waste. Please refer to [link / reference]. Figures 1-9As shown, the upper end of the crusher box 5 is provided with a feeding trough 51 for receiving the intermediate feeding component 8 and conveying injection molding waste. An adjusting groove 52 for adjusting the length of the receiving groove is slidably arranged in the feeding trough 51. A groove connecting plate 53 is fixedly connected to the end of the adjusting groove 52. An adjusting telescopic cylinder 54 is installed on the outer wall of the feeding trough 51. The output end of the adjusting telescopic cylinder 54 is fixedly connected to the groove connecting plate 53. A tilting telescopic cylinder 55 is rotatably installed on the main frame 1. A tilting connecting plate 56 is rotatably connected to the output end of the tilting telescopic cylinder 55. The tilting connecting plate 56 is fixedly installed on the side wall of the crusher box 5. The crusher box 5 is rotatably connected to the crushing base 2. The crushing base 2 is separated from the crusher box 5 by driving the crusher box 5 to rotate through the tilting telescopic cylinder 55, which facilitates the inspection and maintenance of the crushing component 4 installed in the crushing base 2.

[0068] Through the above technical solution, this application provides an adjustable feed chute 51 structure at the upper end of the crusher box 5, effectively solving the problem of potential spillage of injection molding waste during transportation. Specifically, by adjusting the telescopic cylinder 54 to drive the adjusting groove 52 to slide within the feed chute 51, the length of the receiving groove opening can be flexibly adjusted according to the discharge position of the transfer loading component 8, ensuring that the injection molding waste can be completely and accurately guided into the crusher box 5, avoiding waste spillage, thereby reducing raw material waste and maintaining a clean working environment. Simultaneously, this application significantly improves the efficiency of equipment inspection and maintenance by introducing a rotating connection between the crusher box 5 and the crushing base 2, and a tilting mechanism driven by the tilting telescopic cylinder 55. When the crushing component 4 inside the crushing base 2 needs maintenance, there is no need for cumbersome disassembly operations; simply activate the tilting telescopic cylinder 55 to drive the crusher box 5 to tilt around the rotating connection point, quickly separating the crusher box 5 from the crushing base 2. This separation method fully exposes the crushing component 4, allowing operators to easily inspect, clean, or replace parts, greatly shortening downtime and reducing maintenance difficulty and labor intensity. After maintenance, the reverse operation of the telescopic cylinder 55 can reset the crusher box 5 and re-close it with the crushing base 2. The whole process is efficient and safe.

[0069] The following example will provide a more detailed explanation of the above technical solution: A plastics manufacturing plant generates a large amount of injection molding waste containing dust and small amounts of metal fragments every day. To achieve resource recycling and avoid the problems of tool wear and low crushing efficiency in existing recycling methods, the plant introduced an environmentally friendly injection molding waste recycling device.

[0070] First, the operator feeds the injection molding waste into the cleaning and separation tank 6. The tank is equipped with magnets to attract magnetic metal impurities from the waste, preventing these metals from damaging the cutting tools during subsequent crushing. Simultaneously, the tank also contains a stirring and feeding component 7. During the cleaning phase, the feeding motor 91 in the feeding drive 9 starts, driving the stirring and feeding component 7 to rotate. The stirring and feeding component 7 includes a cleaning roller 71, with stirring support plates 73 arranged in a circular array fixed around its outer periphery. At this time, the feeding carriage 74 retracts inside the stirring support plates 73. The rotation of the cleaning roller 71 drives the stirring support plates 73 to thoroughly clean and stir the injection molding waste in the cleaning and separation tank 6, removing dust and non-magnetic impurities from the waste surface and improving the quality of the recycled waste.

[0071] After cleaning and mixing are completed, the adjustment drive mechanism starts working. When the drive slide plate 78 moves, the drive rack 781 drives the gear bushing 77 to rotate. Since the gear bushing 77 is threadedly connected to the outer circumference of the threaded shaft 72, its rotation will drive the rotating turntable 75 to rotate. The rotating turntable 75 drives the support pin 743 through the transmission connecting rod 76, causing the feeding slide 74 to extend from the mixing support plate 73. At this time, the cleaning roller 71 continues to rotate, and the extended feeding slide 74 can pick up the injection molding waste after cleaning and separation at the bottom of the cleaning separation box 6, and send it into the transfer feeding part 8 as the cleaning roller 71 rotates.

[0072] The output shaft of the feeding motor 91 in the feeding drive 9 is fixedly connected to the mixing feeding component 7. The end of the mixing feeding component 7 away from the feeding motor 91 is fixedly connected to the feeding linkage shaft 92, and one set of feeding rollers 82 is also fixedly connected to the feeding linkage shaft 92. The two sets of feeding linkage shafts 92 are connected by a linkage transmission belt 93. This design allows the feeding motor 91 to drive the mixing feeding component 7 and the transfer feeding component 8 synchronously, ensuring that the cleaned waste can be smoothly and continuously transported from the transfer feeding component 8 to the feed chute 51 at the top of the crusher box 5.

[0073] Waste material falls through the feed chute 51 into the crushing chamber 21 inside the crushing base 2 on the main frame 1. The crushing drive motor 3 starts, driving the crushing assembly 4 to rotate. The crushing assembly 4 includes a crushing shaft cylinder 41, on the outer periphery of which a cutter body support 411 is fixedly mounted, and a rotating crushing cutter 43 is mounted on the cutter body support 411. The rotating crushing cutter 43 cooperates with the fixed crushing cutters 26 installed in opposite directions on both sides of the upper end of the crushing chamber 21 to efficiently crush the injection molding waste.

[0074] During the crushing process, the pushing mechanism on the crushing assembly 4 plays a crucial role. As the crushing assembly 4 rotates, the elliptical structure of the drive guide groove 49 drives the scraper pin 45 to slide reciprocally along the side through groove 413, thereby driving the scraper plate 44 to extend and retract on the crushing shaft cylinder 41. When the scraper plate 44 enters the interior of the crushing base 2 and the crusher housing 5, it extends from inside the crushing shaft cylinder 41, pushing the injection molding waste towards the fixed crushing blade 26 for crushing. When the scraper plate 44 approaches the fixed crushing blade 26, it retracts towards the crushing shaft cylinder 41 to avoid interference with the fixed crushing blade 26 and protect the blade. This pushing mechanism solves the problem of existing crushing devices being unable to push internal waste, enabling continuous, multiple crushing of waste without the need for repeated manual input, significantly improving crushing efficiency and blade life.

[0075] Once the waste material is crushed to the required particle size, the discharge port at the bottom of the crushing chamber 21 needs to be opened. At this time, the discharge motor 25, which is fixedly installed on the outer wall of the crushing base 2, starts, driving the bidirectional lead screw 23 inside the crushing base 2 to rotate. Two sets of movable chamber seats 22 are respectively threaded onto the two ends of the bidirectional lead screw 23 and slidably connected to the chamber seat guide rod 24. The rotation of the bidirectional lead screw 23 causes the two sets of movable chamber seats 22 to move to both sides, opening the discharge port, and the crushed waste material can then be discharged.

[0076] In addition, to facilitate the inspection and maintenance of the crushing component 4, a tilting telescopic cylinder 55 is rotatably mounted on the main frame 1. A tilting connecting plate 56 is rotatably connected to the output end of the tilting telescopic cylinder 55, and the tilting connecting plate 56 is fixedly installed on the side wall of the crusher housing 5. When maintenance is required, the tilting telescopic cylinder 55 drives the crusher housing 5 to rotate, separating the crushing base 2 from the crusher housing 5, thereby facilitating the inspection and maintenance of the crushing component 4 installed inside the crushing base 2. An adjusting groove 52 is also slidably provided in the feed chute 51 at the upper end of the crusher housing 5. The length of the receiving groove can be adjusted by adjusting the telescopic cylinder 54 to accommodate different amounts of waste material.

[0077] With the aforementioned device, the factory can efficiently clean, separate, crush, and recycle injection molding waste, effectively solving the technical problems of dust and metal impurities in the waste affecting recycling quality, metal impurities damaging cutting tools, and existing crushing devices being unable to achieve continuous multiple crushing operations, thereby improving the efficiency and quality of waste recycling.

[0078] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. An environmentally friendly recycling device for injection molding waste, characterized in that, The machine includes a main frame (1) and a washing and separation box (6). A crushing base (2) is fixedly installed on the main frame (1). A crushing machine box (5) is fixedly installed on the upper end of the crushing base (2). A crushing chamber (21) for crushing injection molding waste is fixedly installed inside the crushing base (2). A crushing component (4) for crushing injection molding waste is rotatably installed between the crushing base (2) and the crushing machine box (5). Fixed crushing blades (26) are provided on both sides of the upper end of the crushing chamber (21) to cooperate with the crushing component (4) to crush the injection molding waste. The two sets of fixed crushing blades (26) are installed in opposite directions. A crushing drive motor (3) for driving the crushing component (4) to rotate is fixedly installed on the upper end of the main frame (1). The cleaning and separation box (6) is used to clean the injection molding waste and precipitate the metal in the injection molding waste. The cleaning and separation box (6) is equipped with a magnet for adsorbing magnetic metal. A transfer feeding component (8) is provided between the cleaning and separation box (6) and the crusher box (5). The transfer feeding component (8) is used to transport the cleaned and separated injection molding waste in the cleaning and separation box (6) to the crusher box (5) and then fall into the crushing base (2) for crushing. The cleaning and separation box (6) is equipped with a stirring feeding component (7) for cleaning and separating the injection molding waste. The stirring feeding component (7) is also used to send the cleaned and separated injection molding waste into the transfer feeding component (8). The cleaning and separation box (6) is equipped with a feeding drive (9) for driving the stirring feeding component (7) to rotate.

2. The environmentally friendly recycling device for injection molding waste according to claim 1, characterized in that, The transfer loading component (8) includes a loading bracket (81) fixedly installed on the side wall of the cleaning and separation box (6). The upper and lower ends of the loading bracket (81) are rotatably mounted with loading rollers (82). The two sets of loading rollers (82) are connected by a loading conveyor belt (83). The loading conveyor belt (83) is evenly provided with several conveying baffles (84) for conveying injection molding waste.

3. The environmentally friendly recycling device for injection molding waste according to claim 2, characterized in that, The feeding drive (9) includes a feeding motor (91) fixedly installed on the outer wall of the cleaning and separation box (6). The output shaft of the feeding motor (91) is fixedly connected to the stirring feeding component (7). The end of the stirring feeding component (7) away from the feeding motor (91) is fixedly connected to a feeding linkage shaft (92). A feeding linkage shaft (92) is fixedly connected to one set of feeding rollers (82). The two sets of feeding linkage shafts (92) are connected by a linkage transmission belt (93) to realize that a single driving unit can drive the transfer feeding component (8) and the stirring feeding component (7) simultaneously.

4. The environmentally friendly recycling device for injection molding waste according to claim 1, characterized in that, The mixing and feeding component (7) includes a cleaning roller (71). The two ends of the cleaning roller (71) are rotatably mounted in the cleaning and separation box (6) via threaded shafts (72). Several mixing support plates (73) arranged in a circular array are fixedly provided on the outer periphery of the cleaning roller (71). A feeding slide (74) is slidably connected to the mixing support plate (73). An adjustment drive mechanism for driving the feeding slide (74) to extend and retract is provided on the inner side wall of the cleaning and separation box (6). When the feeding slide (74) retracts into the mixing support plate (73), the cleaning roller (71)... The rotation drives the stirring support plate (73) to rotate and clean and stir the injection molding waste in the cleaning and separation box (6). After the cleaning and stirring are completed, the adjustment of the drive mechanism drives the feeding slide (74) to extend out of the end of the feeding slide (74). At this time, the rotation of the cleaning roller (71) drives the stirring support plate (73) and the extended feeding slide (74) to rotate synchronously. At this time, the extended feeding slide (74) can pick up the injection molding waste at the bottom of the cleaning and separation box (6) and send it into the transfer feeding part (8) for transfer and conveying to the crusher box (5) for crushing.

5. The environmentally friendly recycling device for injection molding waste according to claim 4, characterized in that, The stirring support plate (73) has a through support guide groove (732) along its length on its side end. The surface of the stirring support plate (73) is provided with a number of evenly distributed support grooves (731), and the support grooves (731) are connected to the support guide grooves (732). The feeding slide (74) includes a sliding support (741) that is slidably disposed in the support guide groove (732). A number of feeding support rods (742) that are slidably engaged with the support grooves (731) are fixedly disposed on the sliding support (741). A support pin (743) connected to the adjustment drive mechanism is provided on one side of the sliding support (741).

6. The environmentally friendly recycling device for injection molding waste according to claim 5, characterized in that, The adjustment drive mechanism includes a rotating turntable (75) rotatably mounted on a threaded shaft (72) and a slide guide seat (79) fixedly disposed on the inner wall of the cleaning and separation tank (6). Multiple sets of transmission connecting rods (76) are rotatably connected to the rotating turntable (75), with one end of each connecting rod (76) rotatably connected to a support pin (743). A gear bushing (77) is fixedly connected to the rotating turntable (75), and the gear bushing (77) is threaded to the outer circumference of the threaded shaft (72). A drive slide plate (78) is slidably connected to the slide guide seat (79). A drive rack (781) is fixedly provided in the middle of the drive slide plate (78) and meshes with the gear bushing (77). The drive rack (781) is only provided in the middle section of the drive slide plate (78). When the loading slide (74) is fully extended and fully retracted into the stirring support plate (73), the drive rack (781) is separated from the gear bushing (77). This ensures that the gear bushing (77) will not interfere with the drive rack (781) when the cleaning roller (71) rotates. Since the gear bushing (77) is threaded to the outer circumference of the threaded shaft (72), the thread is used to achieve limit locking after the loading slide (74) is adjusted.

7. The environmentally friendly recycling device for injection molding waste according to claim 1, characterized in that, The bottom of the crushing chamber (21) is provided with a discharge port. Two sets of movable chamber seats (22) for controlling the opening and closing of the discharge port are slidably provided at the discharge port. A bidirectional screw (23) is rotatably installed inside the crushing base (2). The two sets of movable chamber seats (22) are respectively threaded to the two ends of the bidirectional screw (23). A chamber seat guide rod (24) is fixedly provided inside the crushing base (2). The two sets of movable chamber seats (22) are slidably connected to the chamber seat guide rod (24). A discharge motor (25) for driving the bidirectional screw (23) to rotate is fixedly installed on the outer wall of the crushing base (2).

8. The environmentally friendly recycling device for injection molding waste according to claim 1, characterized in that, The crushing assembly (4) includes a crushing cylinder (41), and both ends of the crushing cylinder (41) are fixedly provided with cylinder connecting shafts (42). The cylinder connecting shafts (42) are rotatably mounted on the crushing base (2) and are connected to the crushing drive motor (3). A number of blade supports (411) arranged in a ring array are fixedly provided on the outer periphery of the crushing cylinder (41). Rotary crushing blades (43) that cooperate with the fixed crushing blades (26) are fixedly installed on the blade supports (411). The crushing assembly (4) is provided with a pushing mechanism for pushing the injection molding waste.

9. The environmentally friendly recycling device for injection molding waste according to claim 8, characterized in that, The feeding mechanism includes an inner fixing plate (46) fixedly installed inside the crushing shaft cylinder (41). A scraper (44) is slidably connected through the inner fixing plate (46). A spring connecting plate (47) is fixedly connected to one end of the scraper (44) inside the crushing shaft cylinder (41). The spring connecting plate (47) and the inner fixing plate (46) are connected by multiple sets of reset springs (48). The other end of the scraper (44) slidably passes through the side wall of the crushing shaft cylinder (41). The crushing shaft cylinder (41) is provided with a shaft through groove (412) through which the scraper plate (44) passes. The side wall of the scraper plate (44) is provided with a scraper pin (45). Both ends of the crushing shaft cylinder (41) are provided with side through grooves (413) through which the scraper pin (45) slides. The sides of the crushing base (2) and the crusher box (5) are provided with drive guide grooves (49) that slide with the scraper pin (45). The drive guide groove (49) drives the scraper pin through its elliptical structure. (45) Slide back and forth along the side passage (413) to drive the scraper (44) to move telescopically on the crushing shaft cylinder (41). When the scraper (44) enters the interior of the crushing base (2) and the crusher box (5), it begins to extend from the crushing shaft cylinder (41), thereby pushing the injection molding waste to move toward the fixed crushing knife (26) for crushing. When the scraper (44) approaches the fixed crushing knife (26), it retracts toward the crushing shaft cylinder (41) to avoid interference with the fixed crushing knife (26) and damage to the knife.

10. The environmentally friendly recycling device for injection molding waste according to claim 1, characterized in that, The upper end of the crusher box (5) is provided with a feed trough (51) for receiving the injection molding waste material conveyed by the transfer loading component (8). An adjusting groove (52) for adjusting the length of the receiving groove opening is slidably provided in the feed trough (51). A groove connecting plate (53) is fixedly connected to the end of the adjusting groove (52). An adjusting telescopic cylinder (54) is installed on the outer wall of the feed trough (51). The output end of the adjusting telescopic cylinder (54) is fixedly connected to the groove connecting plate (53). The main frame (1) A tilting telescopic cylinder (55) is rotatably installed on the upper part. A tilting connecting plate (56) is rotatably connected to the output end of the tilting telescopic cylinder (55). The tilting connecting plate (56) is fixedly installed on the side wall of the crusher box (5). The crusher box (5) is rotatably connected to the crushing base (2). The crusher box (5) is driven to rotate by the tilting telescopic cylinder (55) to realize the separation of the crushing base (2) from the crusher box (5), which facilitates the inspection and maintenance of the crushing components (4) installed in the crushing base (2).

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