Plastic solid waste recycling device

Abstract

The application discloses a plastic solid waste recycling device and belongs to the technical field of plastic recycling. A fixed mold assembly is fixedly arranged on an equipment table. A movable mold assembly is movably arranged on the equipment table. A linkage member is movably arranged on the equipment table and is provided with a linkage plug on the side facing the movable mold assembly. An outer wall of the side of the fixed mold assembly facing the movable mold assembly is provided with an insertion block. The outer wall of the side of the insertion block facing the movable mold assembly is provided with a locking cavity. The movable mold assembly is axially provided with a penetrating insertion cavity. The insertion block is slidably arranged in the insertion cavity to realize preliminary locking. The linkage plug is slidably arranged in the locking cavity to realize relocking. The multistage locking structure is matched with the integrated sealing design. After the mold is closed, the locking is firm, the melt pressure in the injection molding process is effectively resisted, the problems of loosening and deviation of the mold are avoided, the sealing performance of the butt joint surface of the mold is greatly improved, the overflow and leakage phenomena are completely eliminated, the quality of the plastic product is ensured, and defects such as flash and uneven wall thickness are reduced.

Description

Technical Field

[0001] This invention relates to the field of plastic recycling technology, specifically a plastic solid waste recycling device. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are key pieces of equipment in the plastics processing industry. They can complete the molding of thermoplastic and thermosetting plastics, and with the help of molds, can produce various plastic products. Based on their structure, they are mainly divided into three types: vertical, horizontal, and all-electric. The operating principle of this machine is similar to that of a syringe: the plastic raw material is first heated to turn it into a molten fluid, and then pressure is applied through a screw or plunger to quickly force the molten material into the closed mold cavity. After the raw material cools and solidifies in the mold cavity and its shape is fixed, the mold is opened to complete demolding, and finally a complete plastic product is obtained.

[0003] Chinese patent application CN118769464A discloses a plastic volatile matter recovery system and a method for recovering injection molding volatile matter. The plastic volatile matter recovery system includes a swinging device, with a gas collection hood installed at the swinging end of the swinging device. The gas collection hood has an opening and is connected to a heat recovery pipe. The gas collection hood has a first position, a second position, and a third position. The heat recovery pipe is at least partially located around the inlet of the screw extrusion device. The gas collection hood at the first position collects the waste gas generated during plastic melting, the gas collection hood at the second position collects the waste gas generated during cooling, and the gas collection hood at the third position collects the waste gas released by the injection molding device during mold opening. Then, these waste gases are recovered through the heat recovery pipe, and the inlet of the screw extrusion device is preheated. This improves melting efficiency, reduces energy consumption, and achieves precise recovery of waste gases, offering advantages such as high energy utilization and better recovery effect.

[0004] However, the sealing and feeding effects of the plastic recycling devices disclosed above are generally poor, and the molding effect of the finished product is easily affected by sealing and locking problems during operation. Summary of the Invention

[0005] The purpose of this invention is to provide a plastic solid waste recycling device to address the problems of poor sealing and material feeding effects in existing plastic recycling devices, which can easily affect the molding effect of finished products due to sealing and locking issues during operation.

[0006] To achieve the above objectives, the technical solution of the present invention is: a plastic solid waste recycling device, comprising: an equipment platform;

[0007] A fixed mold assembly is fixedly mounted on the equipment platform;

[0008] The moving model assembly is movably mounted on the equipment platform;

[0009] A linkage component is movably mounted on the equipment platform, with a linkage plug provided on the side facing the moving mold assembly;

[0010] The fixed mold assembly has an insert block on its outer wall facing the moving mold assembly, and the insert block has a locking cavity on its outer wall facing the moving mold assembly. The moving mold assembly has a through insertion cavity in the axial direction, and the insert block is slidably disposed in the insertion cavity to achieve initial locking. The linkage plug is slidably disposed in the locking cavity to achieve secondary locking.

[0011] As a further embodiment of the present invention: the insert block further includes: a telescopic cavity, formed on the outer wall of the insert block;

[0012] The first connecting cavity has one end connected to the telescopic cavity and the other end connected to the locking cavity;

[0013] The fixed mold assembly also includes a locking member; the locking member is slidably disposed in the telescopic cavity to lock the insertion cavity.

[0014] As a further embodiment of the present invention: the locking member further includes: a locking block, which is slidably disposed in the telescopic cavity; and a pressing rod, which is fixedly connected to the locking block and slidably disposed in the first connecting cavity;

[0015] The inner wall of the insertion cavity is provided with a locking groove, and the locking block is disposed in the locking groove.

[0016] As a further embodiment of the present invention, the locking component further includes: a first reset spring, sleeved on the compression rod, one end connected to the locking block, and the other end connected to the inner wall of the telescopic cavity, for providing a reset driving force for the locking block.

[0017] As a further embodiment of the present invention: the moving mold assembly further includes: a feeding cavity, which is formed on the outer wall of the moving mold assembly facing the fixed mold assembly;

[0018] The second connecting cavity has one end connected to the feeding cavity and the other end connected to the insertion cavity;

[0019] The feeding component is slidably disposed in the second connecting cavity and the feeding cavity; when the insert block disengages from the insertion cavity, the feeding component automatically pops out and feeds the formed finished product.

[0020] As a further embodiment of the present invention: the feeding assembly includes: a feeding block, which is slidably disposed in the feeding cavity; the feeding block has a first inclined surface on the side facing the second connecting cavity;

[0021] An extrusion column is slidably disposed in the second connecting cavity; the extrusion column has a second inclined surface on the side facing the feeding block; the first inclined surface abuts against the second inclined surface.

[0022] As a further embodiment of the present invention: the feeding assembly further includes: a second reset spring, one end of which is connected to the feeding block and the other end of which is connected to the feeding cavity, for providing a reset driving force for the feeding block and the extrusion column;

[0023] The inner wall of the second connecting cavity is provided with a limiting groove, and the outer wall of the extrusion column is provided with a limiting slider, which is slidably disposed in the limiting groove.

[0024] As a further embodiment of the present invention: the linkage component further includes: an extrusion part, and the linkage plug is disposed on the side of the extrusion part facing the moving mold assembly;

[0025] A sealing wall, configured to extend axially along the moving mold assembly, is used to seal the injection joint between the fixed mold assembly and the moving mold assembly.

[0026] As a further embodiment of the present invention: the outer wall of the moving mold assembly facing the linkage member is provided with a first rotating seat and a second rotating seat at intervals;

[0027] The equipment platform includes: a first cylinder, with a first rotating shaft at the output end, which is rotatably connected to the first rotating seat;

[0028] The second cylinder has a second rotating shaft at its output end, which is rotatably connected to the second rotating seat.

[0029] As a further embodiment of the present invention: the equipment platform includes: a linkage frame disposed at the output end of the first cylinder; a third cylinder disposed at the linkage frame, and the linkage component disposed at the output end of the third cylinder.

[0030] As a further embodiment of the present invention: the fixed mold assembly is provided with an injection port;

[0031] The plastic solid waste recycling device also includes an injection molding assembly, which includes a melting conveyor for melting and conveying plastic waste.

[0032] The injection nozzle is located at the material output end of the molten conveying component and is connected to the injection port.

[0033] As a further embodiment of the present invention: the injection molding assembly includes: a motor, with a conveyor shaft at the output end, the conveyor shaft being disposed inside the molten conveying component;

[0034] The material guide cover is in communication with the interior of the molten conveyor;

[0035] A control valve is provided at the injection nozzle and is used to control the opening and closing state of the injection nozzle.

[0036] As a further embodiment of the present invention: the equipment platform further includes: a feeding channel, wherein the fixed mold assembly and the moving mold assembly are both disposed above the feeding channel;

[0037] Control panel, communicating with all devices.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] This invention employs a multi-stage locking structure combined with an integrated sealing design, ensuring a secure lock after mold closing. This effectively resists melt pressure during injection molding, preventing mold loosening and misalignment, significantly improving the sealing performance of the mold mating surfaces, completely eliminating overflow and leakage, ensuring the molding quality of plastic products, and reducing defects such as flash and uneven wall thickness. The equipment utilizes the cylinder stroke difference to tilt the moving mold assembly after mold opening. Combined with a mechanically linked unloading mechanism, the finished product's own weight can be used to assist in unloading, resulting in smooth and efficient unloading. This also reduces the workload of the unloading components and slows down wear.

[0040] The entire system employs a mechanical linkage design, eliminating the need for numerous independent drive components. Its compact structure and rational layout simplify the equipment's transmission and control logic, reducing the probability of failure and shortening production cycle time, ensuring stable production rhythm. The device integrates plastic waste melting, conveying, injection molding, and finished product collection functions, achieving integrated plastic solid waste recycling and reprocessing operations. Its high degree of automation reduces manual intervention and improves overall production efficiency. The machine is equipped with a centralized control panel, allowing for unified control of the timing of each process. Operation is simple and maintenance is convenient, making it suitable for long-term continuous production operations and demonstrating strong practicality and versatility. Attached Figure Description

[0041] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0042] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0043] Figure 2 This is a three-dimensional structural diagram of the equipment platform in this invention;

[0044] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0045] Figure 4 This is a cross-sectional view of the moving mold assembly in this invention;

[0046] Figure 5 This is a three-dimensional structural diagram of the fixed mold assembly, the moving mold assembly, the moving mold, and the linkage components in this invention;

[0047] Figure 6 This is a three-dimensional structural diagram of the mold assembly in this invention;

[0048] Figure 7 This is a partial cross-sectional view of the mold assembly in this invention;

[0049] Figure 8 This is a three-dimensional structural diagram of the locking component in this invention;

[0050] Figure 9 This is a three-dimensional structural diagram of the moving mold assembly in this invention;

[0051] Figure 10 This is a three-dimensional structural diagram of the feeding component in this invention;

[0052] Figure 11 This is a cross-sectional view of the present invention;

[0053] Figure 12 This is a cross-sectional view of the injection molding component in this invention.

[0054] Explanation of reference numerals in the attached figures:

[0055] 100. Equipment table;

[0056] 110. Feeding channel; 120. Control panel; 130. First cylinder; 131. First rotating shaft;

[0057] 140. Second cylinder; 141. Second rotating shaft;

[0058] 150. Linkage frame; 151. Third cylinder;

[0059] 200. Fixed mold assembly;

[0060] 210. Injection port; 220. Insert block; 221. Locking cavity; 222. Telescopic cavity; 223. First connecting cavity;

[0061] 230. Locking element; 231. Locking block; 232. Pressing rod; 233. First return spring;

[0062] 300. Moving mold assembly;

[0063] 310. Insertion cavity; 311. Locking groove;

[0064] 320. Feeding chamber;

[0065] 330. Second connecting cavity; 331. Limiting slide groove;

[0066] 340. Feeding assembly; 341. Feeding block; 342. First inclined surface; 343. Second return spring; 344. Extrusion column; 345. Limiting slider; 346. Second inclined surface;

[0067] 350. First rotating seat; 360. Second rotating seat;

[0068] 400. Linkage components;

[0069] 410. Extrusion section; 420. Sealing wall; 430. Linkage insert;

[0070] 500. Injection molded components;

[0071] 510. Melting conveyor; 511. Material guide cover;

[0072] 520. Injection nozzle; 521. Control valve;

[0073] 530. Motor; 531. Conveyor shaft. Detailed Implementation

[0074] The following will be combined with the appendix Figures 1 to 12 The technical solutions of the present invention have been clearly and completely described. 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.

[0075] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0076] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0078] This invention provides an improved plastic solid waste recycling device, such as... Figures 1-12 As shown, including;

[0079] Equipment station 100;

[0080] The fixed mold assembly 200 is fixedly installed on the equipment platform 100;

[0081] The moving mold assembly 300 is movably set on the equipment platform 100;

[0082] Linkage component 400 is movably set on equipment platform 100, and linkage plug 430 is provided on the side facing moving mold assembly 300;

[0083] An insert block 220 is provided on the outer wall of the fixed mold assembly 200 facing the moving mold assembly 300. A locking cavity 221 is provided on the outer wall of the insert block 220 facing the moving mold assembly 300. A through insertion cavity 310 is provided axially in the moving mold assembly 300. The insert block 220 is slidably disposed in the insertion cavity 310 to achieve initial locking. The linkage plug 430 is slidably disposed in the locking cavity 221 to achieve secondary locking.

[0084] In this embodiment, the equipment platform 100 serves as the foundation for the entire machine, providing an installation reference and motion support for the fixed mold assembly 200, the moving mold assembly 300, and the linkage component 400. The fixed mold assembly 200 is fixedly assembled to the equipment platform 100, maintaining a constant position. The moving mold assembly 300 is movably mounted on the equipment platform 100, allowing it to perform reciprocating movements of mold closing and opening relative to the fixed mold assembly 200.

[0085] In this embodiment, during mold closing, the moving mold assembly 300 smoothly approaches the fixed mold assembly 200. The insert block 220 fixed on the outside of the fixed mold assembly 200 precisely slides into the insertion cavity 310 that runs through the axial direction of the moving mold assembly 300. Through the sliding engagement between the insert block 220 and the hole shaft of the insertion cavity 310, the horizontal offset and radial sway of the moving mold assembly 300 are restricted, achieving the first-level preliminary positioning and locking after mold closing, ensuring that the cavities of the fixed mold assembly 200 and the moving mold assembly 300 are completely aligned, and eliminating misalignment deviations.

[0086] In this embodiment, after the initial locking is completed, the linkage component 400 on the equipment platform 100 slides and moves in a directional manner, causing the linkage plug 430 facing the moving mold assembly 300 to be precisely inserted into the locking cavity 221 opened on the surface of the plug block 220, forming an embedded clamping limit and constructing a two-level forced locking structure. The two levels of locking cooperate with each other, from alignment limit to forced locking, layer by layer constraining and completely fixing the overall state of the mold after mold closing.

[0087] In this embodiment, high-precision mold positioning is achieved by relying on the axial sliding fit between the insert block 220 and the insertion cavity 310, effectively preventing the moving mold assembly 300 from shifting or misaligning, ensuring the regularity of the mold cavity, and preventing defects such as burrs, uneven wall thickness, and molding distortion in plastic products. During the injection molding process, the high-pressure impact of the molten plastic can easily cause the moving mold to move. The first-level locking completes the positioning, and the second-level linkage insert 430 engages and locks with the locking cavity 221, doubly constraining the mold clearance, greatly improving the overall rigidity and clamping strength of the mold, and effectively resisting the injection pressure.

[0088] See appendix Figure 6 - Appendix Figure 8 The insertion block 220 also includes: a telescopic cavity 222, which is formed on the outer wall of the insertion block 220;

[0089] The first connecting cavity 223 is connected at one end to the telescopic cavity 222 and at the other end to the locking cavity 221;

[0090] The fixed mold assembly 200 also includes a locking member 230; the locking member 230 is slidably disposed in the telescopic cavity 222 to lock the insertion cavity 310.

[0091] In this embodiment: the outer wall of the insert 220 is respectively machined with a telescopic cavity 222 and a first connecting cavity 223, and the two ends of the first connecting cavity 223 are respectively connected to the telescopic cavity 222 and the locking cavity 221. The locking member 230 is assembled inside the telescopic cavity 222 and can reciprocate along the inner wall of the cavity.

[0092] In this embodiment: when the linkage plug 430 is inserted into the locking cavity 221, the plug end enters the cavity and compresses the space inside the cavity. The pressure is transmitted to the telescopic cavity 222 through the first connecting cavity 223, pushing the locking member 230, which is slidably disposed in the telescopic cavity 222, to extend outward. After extending, the locking member 230 abuts against and engages with the inner wall of the insertion cavity 310, forming a limiting lock on the sliding fit structure between the plug block 220 and the insertion cavity 310.

[0093] When the linkage plug 430 is pulled out from the locking cavity 221, the pressure inside the cavity is released, the locking part 230 loses the external force and can retract into the telescopic cavity 222, releasing the locking constraint on the insertion cavity 310 and providing conditions for subsequent mold opening operations.

[0094] See appendix Figure 7 - Appendix Figure 9 The locking component 230 further includes: a locking block 231, which is slidably disposed in the telescopic cavity 222; and a pressing rod 232, which is fixedly connected to the locking block 231 and slidably disposed in the first connecting cavity 223.

[0095] The inner wall of the insertion cavity 310 is provided with a locking groove 311, and the locking block 231 is disposed in the locking groove 311.

[0096] In this embodiment: the locking block 231 is slidably assembled in the telescopic cavity 222 of the insert block 220, the pressing rod 232 is rigidly connected to the locking block 231, and slides linearly along the first connecting cavity 223, the two forming a synchronously moving whole. The inner wall of the insertion cavity 310 is machined with a matching locking groove 311.

[0097] In this embodiment: During the mold closing and locking stage, the linkage insert 430 extends into the locking cavity 221, pressing the extrusion rod 232 outward, causing the locking block 231 to slide outward from the telescopic cavity 222 and finally embed into the locking groove 311 on the inner wall of the insertion cavity 310. Relying on the engagement and locking of the locking block 231 and the locking groove 311, the relative sliding and movement of the insertion block 220 and the insertion cavity 310 are restricted, achieving both radial and axial limiting.

[0098] In this embodiment: during the mold opening and unlocking stage, the linkage plug 430 exits the locking cavity 221, the outward pushing force on the extrusion rod 232 disappears, and with the rebound force of the first reset spring 233, the extrusion rod 232 and the locking block 231 are pulled back to the telescopic cavity 222 in a synchronous manner, the locking block 231 disengages from the locking groove 311, the limit constraint is completely released, and the moving mold assembly 300 can move normally to open the mold.

[0099] In this embodiment, the squeezing rod 232 slides directionally within the first connecting cavity 223, which ensures that the movement trajectory of the locking block 231 does not deviate, and ensures accurate engagement and disengagement from the locking groove 311.

[0100] See appendix Figure 8 The locking component 230 also includes a first reset spring 233, which is sleeved on the compression rod 232, with one end connected to the locking block 231 and the other end connected to the inner wall of the telescopic cavity 222, for providing the reset driving force for the locking block 231.

[0101] In this embodiment, the locking component 230 includes a locking block 231, a pressing rod 232, and a first return spring 233. The first return spring 233 is fitted onto the outside of the pressing rod 232, with its two ends connected to the locking block 231 and the inner wall of the telescopic cavity 222, respectively. When the linkage insert 430 is inserted into the locking cavity 221, the pressing rod 232 and the locking block 231 are pushed outward through the first connecting cavity 223, engaging with the insertion cavity 310 to complete the locking. During this process, the first return spring 233 is compressed, storing elastic potential energy.

[0102] In this embodiment: when the linkage plug 430 is pulled out of the locking cavity 221, the thrust acting on the extrusion rod 232 disappears, the compressed first reset spring 233 releases its elastic potential energy, and relies on the rebound pull to drive the locking block 231 and the extrusion rod 232 to retract into the telescopic cavity 222, releasing the locking constraint on the insertion cavity 310, completing the reset, and clearing the obstruction for the mold opening and movement of the moving mold assembly 300. The entire action automatically cycles with the insertion and removal of the linkage plug 430, without the need for an additional drive mechanism.

[0103] In this embodiment: the first reset spring 233 provides stable reset power for the locking block 231, and the component can return to its original position in time after the lock is released. When there is no external force, the spring always constrains the locking block 231 within the telescopic cavity 222, and the insert block 220 can smoothly slide into the insertion cavity 310 during the mold closing stage, without premature jamming causing mold closing failure.

[0104] See appendix Figure 4 Appendix Figure 9 - Appendix Figure 11 The moving mold assembly 300 also includes: a blanking cavity 320, which is opened on the outer wall of the moving mold assembly 300 facing the fixed mold assembly 200;

[0105] The second connecting cavity 330 is connected at one end to the feeding cavity 320 and at the other end to the insertion cavity 310;

[0106] The feeding component 340 is slidably disposed in the second connecting cavity 330 and the feeding cavity 320; when the insert block 220 disengages from the insertion cavity 310, the feeding component 340 automatically pops out and feeds the formed finished product.

[0107] In this embodiment: the feeding cavity 320 is opened on the end face of the moving mold assembly 300 facing the fixed mold assembly 200, the two ends of the second connecting cavity 330 are respectively connected to the feeding cavity 320 and the insertion cavity 310, and the feeding assembly 340 can slide as a whole inside the second connecting cavity 330 and the feeding cavity 320.

[0108] In this embodiment: When the mold is closed, the insert block 220 is fully inserted into the insertion cavity 310, and the outer wall of the insert block 220 presses against the material feeding assembly 340, so that the whole assembly is pressed into the material feeding cavity 320 and the second connecting cavity 330. The assembly is in a retracted state and will not interfere with the mold closing and injection molding operations.

[0109] In this embodiment: During the mold opening process, the moving mold assembly 300 and the fixed mold assembly 200 separate from each other, and the insert block 220 is gradually pulled out from the insertion cavity 310. When the insert block 220 is completely detached from the insertion cavity 310, the unloading assembly 340 loses its external pressure constraint and slides outward along the cavity, extending out of the unloading cavity 320. It applies a pushing force to the cooled and shaped plastic product in the mold cavity, peeling the finished product off the moving mold assembly 300, thus completing the automatic unloading operation. The entire set of actions is linked by the forward and backward movement of the insert block 220, without the need for an additional independent drive mechanism.

[0110] In this embodiment, the mechanical linkage is achieved through the cooperation between the insert block 220 and the insertion cavity 310, allowing mold opening and material unloading to be completed simultaneously, eliminating the need for separate control of the unloading mechanism. The unloading cavity 320 and the second connecting cavity 330 are directly integrated into the moving mold assembly 300 body, and the unloading assembly 340 is embedded in it, without occupying external space of the mold, resulting in a simpler overall layout. After the insert block 220 disengages, the assembly automatically ejects the ejector, replacing manual part removal, improving work efficiency, and avoiding the safety hazards associated with manual operation.

[0111] See appendix Figure 9 - Appendix Figure 11 The feeding assembly 340 includes: a feeding block 341, which is slidably disposed in the feeding cavity 320; the feeding block 341 is provided with a first inclined surface 342 on the side facing the second connecting cavity 330;

[0112] The extrusion column 344 is slidably disposed in the second connecting cavity 330; the extrusion column 344 is provided with a second inclined surface 346 on the side facing the feed block 341; the first inclined surface 342 abuts against the second inclined surface 346.

[0113] In this embodiment: the feeding block 341 is assembled in the feeding cavity 320 and can slide linearly, and its side is provided with a first inclined surface 342; the extrusion column 344 is placed in the second connecting cavity 330 and can slide along the cavity, and its end is provided with a second inclined surface 346, and the two inclined surfaces always abut against each other.

[0114] In this embodiment: During the mold closing stage, the insert block 220 is inserted into the insertion cavity 310, pushing the extrusion column 344 axially into the second connecting cavity 330. The second inclined surface 346 moves synchronously with the extrusion column 344, and by pressing the first inclined surface 342, the axial thrust is converted into radial thrust, which drives the unloading block 341 to retract into the unloading cavity 320, completing the storage. At this time, the unloading block 341 will not protrude from the mold surface, ensuring normal mold closure and injection molding.

[0115] In this embodiment: During the mold opening stage, the insert block 220 gradually withdraws from the insertion cavity 310, and the top pressure on the extrusion column 344 continuously decreases until it disappears completely. The extrusion column 344 is released from axial constraint, and the extrusion pressure between the inclined surfaces disappears. The unloading block 341 slides outward from the unloading cavity 320, ejecting the molded product and completing the unloading action. The entire process relies on the force direction conversion of the two sets of inclined surfaces to achieve the linkage movement of the extrusion column 344 and the unloading block 341.

[0116] In this embodiment, the axial force of the insert block 220 is converted into the radial ejection force of the feed block 341 by means of the inclined plane transmission of the first inclined plane 342 and the second inclined plane 346, which cleverly adapts to the different orientations of the insertion cavity 310 and the feed cavity 320, making the structural layout more flexible.

[0117] In this embodiment: the inclined plane is a surface contact transmission, which results in uniform force distribution and low frictional resistance during movement, allowing the extrusion column 344 and the feeding block 341 to slide smoothly. The inclined planes fit together and limit each other, preventing the feeding block 341 and the extrusion column 344 from shifting, ensuring a stable and reliable feeding position.

[0118] See appendix Figure 4 Appendix Figure 10 The feeding assembly 340 also includes a second reset spring 343, one end of which is connected to the feeding block 341 and the other end of which is connected to the feeding chamber 320, for providing a reset driving force for the feeding block 341 and the extrusion column 344;

[0119] The inner wall of the second connecting cavity 330 is provided with a limiting groove 331, and the outer wall of the extrusion column 344 is provided with a limiting slider 345, which is slidably disposed in the limiting groove 331.

[0120] In this embodiment: the two ends of the second return spring 343 are respectively connected to the material feeding block 341 and the inner wall of the material feeding cavity 320, providing reset power for the entire material feeding assembly 340. The inner wall of the second connecting cavity 330 is provided with a limiting groove 331, and the outer wall of the extrusion column 344 is equipped with a limiting slider 345. The limiting slider 345 slides into the limiting groove 331, limiting the movement stroke and posture of the extrusion column 344.

[0121] In this embodiment: During mold closing, the insert block 220 is pushed into the insertion cavity 310 and presses against the extrusion column 344. The extrusion column 344 slides inward along the second connecting cavity 330, and the limiting slider 345 moves directionally within the limiting groove 331 to prevent the extrusion column 344 from rotating or tilting. The extrusion column 344 pushes the unloading block 341 back into the unloading cavity 320 through the second inclined surface 346. During this process, the second reset spring 343 is stretched and stores elastic potential energy.

[0122] In this embodiment: When the mold opens, the insert block 220 disengages from the insertion cavity 310, and the extrusion column 344 loses its axial top pressure. The second reset spring 343 releases its elastic tension, pulling the unloading block 341 outward to complete the ejection and unloading; at the same time, the inclined surface abuts against the extrusion column 344 and pushes it back, and the limiting slider 345 slides to its limit position in the limiting groove 331, preventing the extrusion column 344 from exiting the cavity. All components return to their initial standby position, waiting for the next round of mold closing operation.

[0123] See appendix Figure 3 Appendix Figure 5 and attached Figure 11 The linkage component 400 also includes: an extrusion part 410, and a linkage plug 430 disposed on the side of the extrusion part 410 facing the moving mold assembly 300;

[0124] The sealing wall 420 is configured to extend axially along the moving mold assembly 300 for sealing the injection joint between the fixed mold assembly 200 and the moving mold assembly 300.

[0125] In this embodiment: the linkage 400 integrates the extrusion part 410 and the sealing wall 420, the linkage plug 430 is fixed on the side of the extrusion part 410 facing the moving mold assembly 300, and the sealing wall 420 extends along the axial direction of the moving mold assembly 300.

[0126] In this embodiment: After mold closing, the linkage 400 moves toward the moving mold assembly 300, and the extrusion part 410 drives the linkage insert 430 to move synchronously, so that the linkage insert 430 is precisely inserted into the locking cavity 221 of the insert block 220, completing the secondary locking action. During this process, the axially extending sealing wall 420 simultaneously fits against the joint between the fixed mold assembly 200 and the moving mold assembly 300, forming a full-coverage seal for the injection joint.

[0127] In this embodiment: when the mold opens, the linkage 400 retracts in the reverse direction, the linkage insert 430 is pulled out from the locking cavity 221 to release the lock, and the sealing wall 420 disengages from the mold mating surface, no longer interfering with the movement of the moving mold assembly 300 and the unloading of the finished product. The entire structure completes the mold locking and sealing actions simultaneously with the reciprocating motion of the linkage 400.

[0128] See appendix Figure 1 - Appendix Figure 4 The outer wall of the moving mold assembly 300 facing the linkage member 400 is provided with a first rotating seat 350 and a second rotating seat 360 at intervals.

[0129] The equipment platform 100 includes: a first cylinder 130, with a first rotating shaft 131 at the output end, which is rotatably connected to the first rotating seat 350;

[0130] The second cylinder 140 has a second rotating shaft 141 at its output end, which is rotatably connected to the second rotating seat 360.

[0131] In this embodiment: A first rotating seat 350 and a second rotating seat 360 are installed at intervals on the outer side of the moving mold assembly 300. A first cylinder 130 and a second cylinder 140 are arranged on the equipment platform 100. The first rotating shaft 131 at the output end of the first cylinder 130 is hinged to the first rotating seat 350, and the second rotating shaft 141 at the output end of the second cylinder 140 is hinged to the second rotating seat 360.

[0132] In this embodiment: During mold closing, the first cylinder 130 and the second cylinder 140 extend synchronously, pushing the first rotating seat 350 and the second rotating seat 360 respectively via the first rotating shaft 131 and the second rotating shaft 141, thereby driving the moving mold assembly 300 to move smoothly towards the fixed mold assembly 200, achieving mold closure. The hinged structure allows for small-amplitude rotation compensation between the rotating shaft and the rotating seat, adapting to assembly errors.

[0133] In this embodiment: during the mold opening operation, the two cylinders retract synchronously, pulling the moving mold assembly 300 to move in the opposite direction, causing the moving mold assembly 300 to separate from the fixed mold assembly 200. The two cylinders, together with two sets of hinge points, form a symmetrical drive layout, and the reciprocating translation of the moving mold assembly 300 is completed entirely by the extension and retraction of the cylinders in conjunction with the hinge pairs.

[0134] In this embodiment: during the mold opening and unloading stage, the first cylinder 130 and the second cylinder 140 synchronously perform retraction actions, and their movement timing is consistent, but the retraction stroke of the first cylinder 130 is greater than that of the second cylinder 140. The first cylinder 130 is connected to the first rotating seat 350 on the moving mold assembly 300 via the first rotating shaft 131, and the second cylinder 140 is connected to the second rotating seat 360 via the second rotating shaft 141.

[0135] Due to the difference in displacement between the two sides, the moving mold assembly 300 deflects around the hinge point of the second rotating shaft 141 and the second rotating seat 360, forming an overall tilted posture. After the moving mold assembly 300 tilts, the molded product inside the mold cavity tends to slide down under its own gravity. With the pushing action of the previously ejected unloading assembly 340, the finished product can smoothly leave the mold, completing the unloading operation. After unloading is completed, the two cylinders extend synchronously again, and the moving mold assembly 300 returns to its original position, entering the next round of mold closing process.

[0136] See appendix Figure 1 - Appendix Figure 3 The equipment platform 100 includes: a linkage frame 150, which is located at the output end of the first cylinder 130; a third cylinder 151, which is located at the linkage frame 150; and a linkage component 400, which is located at the output end of the third cylinder 151.

[0137] In this embodiment: the linkage frame 150 is fixed to the output end of the first cylinder 130, the third cylinder 151 is mounted on the linkage frame 150, and the linkage component 400 is installed at the output end of the third cylinder 151.

[0138] In this embodiment: During the mold closing stage, the first cylinder 130 extends to push the moving mold assembly 300 to complete the mold closing, and at the same time drives the linkage frame 150 and the third cylinder 151 to move synchronously with the moving mold assembly 300, so that the third cylinder 151 and the linkage component 400 maintain a constant relative position. After the mold is closed, the third cylinder 151 extends alone, driving the linkage component 400 to move towards the moving mold assembly 300, completing the insertion and locking of the linkage plug 430 and the sealing action of the sealing wall 420.

[0139] In this embodiment: during the mold opening stage, the third cylinder 151 retracts first, driving the linkage 400 to reset and releasing the mold locking and sealing; then the first cylinder 130 retracts, pulling the linkage frame 150, the third cylinder 151, and the moving mold assembly 300 backward together, realizing mold separation. The overall structure realizes a two-stage motion coordination of follow-up and independent drive.

[0140] See appendix Figure 5 - Appendix Figure 6 and attached Figure 12 The fixed mold assembly 200 has an injection port 210;

[0141] The plastic solid waste recycling device also includes an injection molding assembly 500, which includes a melting conveying component 510 for melting and conveying plastic waste.

[0142] The injection nozzle 520 is located at the material output end of the melt conveying component 510 and is connected to the injection port 210.

[0143] In this embodiment, the fixed mold assembly 200 has an injection port 210 on its surface, which serves as a channel for molten plastic to enter the mold cavity. In the injection assembly 500, the molten conveying component 510 is responsible for heating and melting the plastic waste and continuously conveying the molten plastic to the discharge end. The injection nozzle 520 installed at its material output end is connected to the injection port 210.

[0144] In this embodiment: After the mold completes mold closing, multiple locking and sealing, the molten conveying component 510 operates, and the molten plastic flows sequentially through the injection nozzle 520 and injection port 210, smoothly injecting into the mold cavity formed by the fixed mold assembly 200 and the moving mold assembly 300. After the injection molding operation is completed, the feeding stops, and after the material in the cavity cools and solidifies, the mold opening and unloading process can begin. The entire process enables continuous operation of melting, conveying, and injection molding of plastic waste.

[0145] See appendix Figure 12 The injection molding assembly 500 includes: a motor 530, with a conveyor shaft 531 at the output end, the conveyor shaft 531 being disposed inside the melt conveyor 510;

[0146] The guide cover 511 is connected to the interior of the molten conveyor 510;

[0147] Control valve 521 is located at injection nozzle 520 and is used to control the opening and closing state of injection nozzle 520.

[0148] In this embodiment: In the injection molding assembly 500, the guide cover 511 is connected to the interior of the melt conveyor 510, and the plastic solid waste is fed into the interior of the melt conveyor 510 through the guide cover 511. The motor 530 drives the conveyor shaft 531 to rotate inside the melt conveyor 510, which continuously stirs and propels the waste on the one hand, and on the other hand, in conjunction with the equipment heating structure, melts the plastic solid waste into a melt, which is continuously conveyed to the injection nozzle 520.

[0149] In this embodiment: a control valve 521 is installed on the injection nozzle 520. After the mold is closed and locked, the control valve 521 opens, and molten plastic is injected into the mold cavity through the injection nozzle 520 and injection port 210. After the injection volume reaches the set requirement, the control valve 521 closes in time, cutting off the material passage, stopping the feeding, and preventing the melt from continuing to flow out. The entire structure realizes the full-process operation of plastic waste feeding, melt conveying, and on / off material control.

[0150] See appendix Figure 1 - Appendix Figure 2 The equipment platform 100 also includes: a material unloading channel 110, a fixed mold assembly 200 and a moving mold assembly 300, both of which are located above the material unloading channel 110;

[0151] Control panel 120, communicates with all devices.

[0152] In this embodiment: the feeding channel 110 is located on the equipment platform 100, and the fixed mold assembly 200 and the moving mold assembly 300 are arranged directly above it. After the moving mold assembly 300 tilts and the feeding assembly 340 ejects the finished product, the plastic product slides down by its own weight and is directionally transported to the designated collection area through the feeding channel 110 below, thus completing the collection of finished products.

[0153] In this embodiment: the control panel 120 establishes a communication connection with all electrical and pneumatic components of the machine. The operator issues commands through the panel to uniformly control the start and stop, action sequence, and operating parameters of each cylinder, motor 530, control valve 521 and other components, and coordinates the orderly cycle of the entire process such as mold closing, locking, injection molding, mold opening, tilting and unloading, and resetting.

[0154] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A plastic solid waste recycling device, characterized in that, include: Equipment table (100); The mold assembly (200) is fixedly mounted on the equipment platform (100); The moving module assembly (300) is movably disposed on the equipment platform (100); A linkage component (400) is movably mounted on the equipment platform (100), and a linkage plug (430) is provided on the side facing the moving module assembly (300). The fixed mold assembly (200) has an insert (220) on its outer wall facing the moving mold assembly (300), and the insert (220) has a locking cavity (221) on its outer wall facing the moving mold assembly (300); the moving mold assembly (300) has a through insertion cavity (310) axially, and the insert (220) is slidably disposed in the insertion cavity (310) to achieve initial locking; the linkage plug (430) is slidably disposed in the locking cavity (221) to achieve re-locking.

2. The plastic solid waste recycling device according to claim 1, characterized in that, The insert (220) also includes: The telescopic cavity (222) is formed on the outer wall of the insert (220); The first connecting cavity (223) is connected at one end to the telescopic cavity (222) and at the other end to the locking cavity (221); The fixed mold assembly (200) also includes a locking member (230); the locking member (230) is slidably disposed in the telescopic cavity (222) to lock the insertion cavity (310).

3. The plastic solid waste recycling device according to claim 2, characterized in that, The locking element (230) also includes: A locking block (231) is slidably disposed in the telescopic cavity (222); a pressing rod (232) is fixedly connected to the locking block (231) and slidably disposed in the first connecting cavity (223). The inner wall of the insertion cavity (310) is provided with a locking groove (311), and the locking block (231) is disposed in the locking groove (311).

4. The plastic solid waste recycling device according to claim 3, characterized in that, The locking element (230) also includes: The first reset spring (233) is sleeved on the compression rod (232), with one end connected to the locking block (231) and the other end connected to the inner wall of the telescopic cavity (222), and is used to provide the reset driving force of the locking block (231).

5. A plastic solid waste recycling device according to any one of claims 1-4, characterized in that, The moving mold assembly (300) further includes a feeding cavity (320) which is formed on the outer wall of the moving mold assembly (300) facing the fixed mold assembly (200); The second connecting cavity (330) is connected at one end to the feeding cavity (320) and at the other end to the insertion cavity (310); The feeding component (340) is slidably disposed in the second connecting cavity (330) and the feeding cavity (320); when the insert (220) disengages from the insertion cavity (310), the feeding component (340) automatically pops out and feeds the formed finished product.

6. A plastic solid waste recycling device according to claim 5, characterized in that, The feeding assembly (340) includes: A feeding block (341) is slidably disposed in the feeding cavity (320); the feeding block (341) is provided with a first inclined surface (342) on the side facing the second connecting cavity (330); An extrusion column (344) is slidably disposed in the second connecting cavity (330); the extrusion column (344) is provided with a second inclined surface (346) on the side facing the feeding block (341); the first inclined surface (342) abuts against the second inclined surface (346).

7. A plastic solid waste recycling device according to claim 6, characterized in that, The feeding assembly (340) also includes: The second return spring (343) is connected at one end to the feeding block (341) and at the other end to the feeding chamber (320), and is used to provide the return driving force for the feeding block (341) and the extrusion column (344); And / or, a limiting groove (331) is provided on the inner wall of the second connecting cavity (330), and a limiting slider (345) is provided on the outer wall of the extrusion column (344), and the limiting slider (345) is slidably disposed in the limiting groove (331).

8. A plastic solid waste recycling device according to any one of claims 1-4, characterized in that, The linkage component (400) further includes an extrusion part (410), and the linkage plug (430) is disposed on the side of the extrusion part (410) facing the moving mold assembly (300); A sealing wall (420) is configured to extend axially along the moving mold assembly (300) for sealing the injection joints of the fixed mold assembly (200) and the moving mold assembly (300).

9. A plastic solid waste recycling device according to any one of claims 1-4, characterized in that, The moving mold assembly (300) has a first rotating seat (350) and a second rotating seat (360) spaced apart on the outer wall of the side facing the linkage member (400). The equipment platform (100) includes: a first cylinder (130), with a first rotating shaft (131) at the output end, which is rotatably connected to the first rotating seat (350); The second cylinder (140) has a second rotating shaft (141) at its output end, which is rotatably connected to the second rotating seat (360); And / or, the equipment table (100) includes: A linkage frame (150) is disposed at the output end of the first cylinder (130); The third cylinder (151) is located on the linkage frame (150), and the linkage component (400) is located at the output end of the third cylinder (151).

10. A plastic solid waste recycling device according to any one of claims 1-4, characterized in that, The fixed mold assembly (200) has an injection port (210); The plastic solid waste recycling device also includes an injection molding assembly (500), including a melting conveyor (510) for melting and conveying plastic waste; The injection nozzle (520) is located at the material output end of the melt conveying component (510) and is connected to the injection port (210).

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