An automatic recycling and crushing device for plastic waste

Abstract

This utility model discloses an automatic plastic waste recycling and crushing device, which relates to the field of plastic recycling technology. The device includes a support frame, with a processing mechanism above the support frame for processing waste plastics. The processing mechanism includes: a feeding component located above the support frame for feeding materials; a crushing component located in the middle of the support frame for initially crushing large pieces of waste plastic into smaller pieces; and a crushing component including a protective shell at the bottom of the feeding component. A fixed disc and a movable disc form a screen-like structure. The fixed disc has a funnel-shaped opening to facilitate material entry, while the movable disc has an opening of the same size but facing opposite directions. A drive motor drives the movable disc to rotate through the meshing of a transmission gear and a gear ring. During rotation, the openings of the movable disc and the fixed disc continuously misalign, generating a shearing force on the material stuck in the opening of the fixed disc, cutting off the obstructing material.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling technology, specifically to an automatic recycling and crushing device for plastic waste. Background Technology

[0002] Plastic waste crushing and recycling equipment is the core pre-treatment equipment in the plastic recycling system. It is mainly used for mechanical processing of various waste plastic products. Through "crushing and volume reduction + impurity separation", it paves the way for subsequent recycling and ultimately achieves multiple goals of "resource regeneration, pollution reduction and industrial cost reduction".

[0003] The existing utility model patent with publication number CN212920053U discloses a waste plastic crushing device, including a supporting base plate, a feeding support rod, a feeding chamber, a crushing device, a support plate, a crushing support rod, and a crushing device. The supporting base plates are arranged opposite each other, the feeding support rod is located on the supporting base plate, the feeding chamber is located on the feeding support rod, the crushing device is located at the bottom of the feeding chamber, the support plate is located on the supporting base plate and between the feeding support rods, the crushing support rod is located on the support plate, the crushing device is located between the crushing support rods, and the crushing device is located below the crushing device. The crushing device includes a crushing motor, a crushing shaft, a crushing roller, a crushing chamber, a fixed body, and an inclined fixed feeding partition. This utility model belongs to the field of waste material crushing technology, specifically a waste plastic crushing device that can perform dual crushing and crushing treatment on waste plastics, achieving thorough and comprehensive crushing of waste plastics, with good crushing effect and high crushing efficiency.

[0004] The aforementioned crushing and collecting device uses a top-mounted feeding chamber to hold the material to be processed. During the crushing process of the lower crushing device, dust on the surface of the waste plastic may be discharged from the upper feeding chamber. Especially when the total amount of material inside the feeding chamber is insufficient to cover the feeding port, the dust may be discharged directly upwards, causing dust pollution. At the same time, the screen in the secondary crushing device may be blocked by material during continuous operation, and the device cannot handle the blocked screen. After long-term operation, the screen may become completely blocked and unable to discharge material. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic recycling and crushing device for plastic waste, which solves the problems of dust escaping from the feed inlet and screen clogging generated during the crushing process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An automatic recycling and crushing device for plastic waste includes a support frame, and a processing mechanism is arranged above the support frame for processing waste plastics. The processing mechanism includes:

[0007] The feeding assembly, located above the support frame, is used for feeding materials.

[0008] The crushing component, located in the middle of the support frame, is used to initially crush large pieces of waste plastic into smaller pieces;

[0009] The crushing assembly includes a protective shell disposed at the bottom of the feeding assembly. A crushing motor is fixedly installed inside the protective shell. A crushing disc is fixedly installed at the bottom of the rotating shaft of the crushing motor. A fixed disc is inserted below the crushing disc. A hopper is fixedly installed below the support frame. A movable disc is fitted into the top of the hopper. A gear ring is fixedly installed on the outer side of the movable disc. A drive motor is fixedly installed on the outer side of the feeding assembly. A drive gear is fixedly installed at the bottom end of the rotating shaft of the drive motor.

[0010] Preferably, the unloading assembly includes a housing fixedly installed inside the support frame, a guide block fixedly installed on the top of the housing, an unloading shaft inserted through the top of the housing, and a stepper motor connected to one end of the unloading shaft.

[0011] Preferably, the unloading shaft is rotatably connected to the housing, with both ends penetrating the housing and one end connected to a stepper motor shaft fixed to the outside of the housing. The unloading shaft has a flat plate structure arranged in a "+" shape on its outer side. The guide block is mirror-symmetrically installed inside the housing, and one side is an arc surface structure that contacts the outer edge of the unloading shaft.

[0012] Preferably, the crushing assembly includes a crushing roller movably installed inside the housing, one end of the crushing roller is connected to a crushing motor, and a linkage gear is fixedly installed at one end of the crushing roller.

[0013] Preferably, the crushing rollers are installed in the middle of the housing in a mirror-symmetrical manner, with both ends of the crushing rollers penetrating the housing. The linkage gears at one end of the crushing rollers on both the front and rear sides of the housing mesh with each other, and the crushing motor is connected to one end of a crushing roller.

[0014] Preferably, the top end of the fixed disk is fixedly connected to the bottom end of the outer shell, the surface of the fixed disk is provided with an annularly distributed opening structure, and the top end of the opening structure of the fixed disk is trumpet-shaped. The surface of the movable disk is provided with an opening of the same size as the fixed disk, and the opening orientation is opposite to that of the opening orientation of the fixed disk. The movable disk is rotatably connected to the top of the hopper. The transmission motor is fixed to the outside of the outer shell, and the transmission gear meshes with the gear ring.

[0015] Beneficial effects

[0016] This invention provides an automatic recycling and crushing device for plastic waste. Compared with the prior art, it has the following advantages:

[0017] (1) In this automatic recycling and crushing device for plastic waste, the outer shell of the feeding component forms a closed space. The guide blocks are installed symmetrically in mirror image and one side has an arc surface structure. They are closely fitted with the baffles distributed in a "+" shape on the outside of the unloading shaft. During the rotation of the unloading shaft, the cross baffles always maintain contact and fit with the arc surface of the guide blocks without any obvious gaps. The stepper motor controls the unloading shaft to rotate intermittently. Each rotation only aligns the gap of one baffle with the feeding channel to transport waste plastic, while the baffles in other positions are closely fitted with the guide blocks to block the channel. Even if the total amount of material in the outer shell is insufficient, the continuous contact between the cross baffles and the guide blocks can block the upward escape path of dust. At the same time, the closed outer shell further blocks the spread of dust, effectively suppressing dust escape from both structural sealing and feeding control aspects.

[0018] (2) In this automatic recycling and crushing device for plastic waste, the fixed plate and the movable plate form a screen-like structure. The funnel-shaped opening of the fixed plate facilitates material entry, while the openings of the movable plate, which are the same size as the fixed plate, face opposite directions. The drive motor drives the movable plate to rotate through the meshing of the drive gear and the gear ring. During the rotation, the openings of the movable plate and the fixed plate are constantly misaligned, generating a shearing force on the material stuck in the opening of the fixed plate, cutting off the blocked material. This dynamic unblocking method can continuously deal with the blockage problem without stopping the machine, ensuring that the material can pass smoothly through the opening and be collected and discharged by the hopper, avoiding complete screen blockage caused by long-term operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the unloading shaft installation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the linkage gear installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the mounting structure of the fixed disk of this utility model;

[0023] In the diagram: 1. Support frame; 2. Processing mechanism; 21. Feeding assembly; 211. Outer shell; 212. Guide block; 213. Discharge shaft; 214. Stepper motor; 22. Crushing assembly; 221. Crushing roller; 222. Crushing motor; 223. Linkage gear; 23. Crushing assembly; 231. Protective shell; 232. Crushing motor; 233. Crushing disc; 234. Fixed disc; 235. Hopper; 236. Movable disc; 237. Gear ring; 238. Drive motor; 239. Drive gear. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an automatic recycling and crushing device for plastic waste includes a support frame 1, and a processing mechanism 2 is arranged above the support frame 1 for processing waste plastic. The processing mechanism 2 includes a feeding component 21, which is arranged above the support frame 1 for feeding. The feeding component 21 includes a housing 211 fixedly installed inside the support frame 1. A guide block 212 is fixedly installed on the top of the housing 211. A discharge shaft 213 is inserted through the top of the housing 211. One end of the discharge shaft 213 is connected to a stepper motor 214. The discharge shaft 213 and the housing 211 are rotatably connected. Both ends pass through the housing 211, and one end is connected to the rotating shaft of the stepper motor 214 fixed on the outside of the housing 211. A flat plate structure distributed in a "+" shape is arranged on the outside of the discharge shaft 213. The guide block 212 is mirror-symmetrically installed inside the housing 211, and one side is an arc surface structure that contacts the outer edge of the discharge shaft 213.

[0026] Specifically, the waste plastic is restricted to falling only in the space between the guide blocks 212 inside the outer shell 211. At the same time, the flat plate structure on the outside of the unloading shaft 213 is fitted with the guide blocks 212. When the stepper motor 214 drives the unloading shaft 213 to rotate, the outer edge of the unloading shaft 213 can be kept fitted with the guide blocks 212 while rotating to move the waste plastic from above the unloading shaft 213 to the area directly below the unloading shaft 213 and between the guide blocks 212. The waste plastic in this area will fall into the area between the crushing rollers 221 in the crushing component 22 below under the action of gravity for preliminary crushing.

[0027] The crushing assembly 22 is located in the middle of the support frame 1 and is used to initially crush large pieces of waste plastic into smaller pieces. The crushing assembly 22 includes a crushing roller 221 movably installed inside the outer shell 211. One end of the crushing roller 221 is connected to a crushing motor 222, and a linkage gear 223 is fixedly installed at one end of the crushing roller 221. The crushing roller 221 is installed in a mirror image symmetrically in the middle of the outer shell 211, and both ends of the crushing roller 221 penetrate through the outer shell 211. The linkage gears 223 at one end of the crushing roller 221 on both the front and rear sides of the outer shell 211 mesh with each other. The crushing motor 222 is connected to one end of a crushing roller 221.

[0028] Specifically, the crushing motor 222 is model Y315M-6, equipped with a ZSY315 reducer, which can drive the crushing roller 221 to rotate. The crushing rollers 221 are linked by a linkage gear 223 to crush waste plastic. The center of the outer shell 211 has an inward protruding structure to restrict the position between the waste plastic and the crushing roller 221, preventing the waste plastic from sliding from both ends of the crushing roller 221 and the side near the inner wall of the outer shell 211 into the crushing assembly 23 below.

[0029] The crushing assembly 23 includes a protective shell 231 disposed at the bottom of the feeding assembly 21. A crushing motor 232 is fixedly installed inside the protective shell 231. A crushing disc 233 is fixedly installed at the bottom of the shaft of the crushing motor 232. A fixed disc 234 is inserted below the crushing disc 233. A hopper 235 is fixedly installed below the support frame 1. A movable disc 236 is fitted onto the top of the hopper 235. A toothed ring 237 is fixedly installed on the outer side of the movable disc 236. A drive motor 238 is fixedly installed on the outer side of the feeding assembly 21. A transmission gear 239 is fixedly installed at the bottom of the rotating shaft. The top of the fixed disk 234 is fixedly connected to the bottom of the outer casing 211. The surface of the fixed disk 234 is provided with annularly distributed opening structure, and the top of the opening structure of the fixed disk 234 is trumpet-shaped. The surface of the movable disk 236 is provided with openings of the same size as the fixed disk 234, and the openings face opposite to the openings of the fixed disk 234. The movable disk 236 is rotatably connected to the top of the hopper 235. The transmission motor 238 is fixed to the outside of the outer casing 211. The transmission gear 239 meshes with the gear ring 237.

[0030] Specifically, the protective shell 231 is fixed to the bottom of the outer shell 211. The crushing motor 232 drives the crushing disc 233 to rotate and crush the waste plastic above the fixed disc 234. The opening structure above the fixed disc 234 can cooperate with the opening structure of the movable disc 236 while screening the waste plastic. When the movable disc 236 rotates, its opening structure is misaligned with the opening structure of the fixed disc 234, generating a shearing force on the waste plastic stuck inside the opening structure of the fixed disc 234 to cut the waste plastic stuck inside the fixed disc 234. The waste plastic that can pass through the opening structure of the movable disc 236 and the fixed disc 234 will be collected and discharged by the hopper 235.

[0031] Specifically, the stepper motor 214 is model 2S57Q-06040, the crushing motor 232 is model Y132M-4, and the drive motor 238 is model ST5918-0804. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] During operation, waste plastic first enters the outer shell 211 of the feeding assembly 21. The guide block 212 restricts its falling path. The stepper motor 214 drives the unloading shaft 213 to rotate. The "+" shaped flat plate structure on the outside of the unloading shaft 213 is fitted with the guide block 212, conveying the waste plastic in batches to the crushing rollers 221 of the crushing assembly 22 below. The crushing motor 222 drives one crushing roller 221 to rotate, and through the linkage gear 223, drives the other crushing roller 221 to rotate in the opposite direction, performing preliminary crushing of the waste plastic. The crushed waste plastic falls above the fixed plate 234 of the crushing assembly 23. The crushing motor 232 inside the protective shell 231 drives the crushing disc 233 to rotate for fine crushing. Plastic that meets the particle size requirements passes through the opening of the fixed plate 234. The transmission motor 238 drives the transmission gear 239 to rotate, and the meshing gear ring 237 makes the movable disc 236 rotate, which works with the fixed plate 234 to deal with the blocked material. Finally, the crushed plastic is collected and discharged by the hopper 235.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic recycling and crushing device for plastic waste, characterized in that: The system includes a support frame (1), and a processing mechanism (2) is provided above the support frame (1) for processing waste plastics. The processing mechanism (2) includes: The feeding assembly (21) is located above the support frame (1) and is used for feeding materials; The crushing component (22) is located in the middle of the support frame (1) and is used to initially crush large pieces of waste plastic into smaller pieces; The crushing assembly (23) includes a protective shell (231) disposed at the bottom of the feeding assembly (21). A crushing motor (232) is fixedly installed inside the protective shell (231). A crushing disc (233) is fixedly installed at the bottom of the shaft of the crushing motor (232). A fixed disc (234) is inserted below the crushing disc (233). A hopper (235) is fixedly installed below the support frame (1). A movable disc (236) is fitted on the top of the hopper (235). A gear ring (237) is fixedly installed on the outside of the movable disc (236). A drive motor (238) is fixedly installed on the outside of the feeding assembly (21). A drive gear (239) is fixedly installed at the bottom of the shaft of the drive motor (238).

2. The automatic plastic waste recycling and crushing device according to claim 1, characterized in that: The unloading assembly (21) includes a housing (211) fixedly installed inside the support frame (1). A guide block (212) is fixedly installed on the top of the housing (211). An unloading shaft (213) is inserted through the top of the housing (211). One end of the unloading shaft (213) is connected to a stepper motor (214).

3. The automatic recycling and crushing device for plastic waste according to claim 2, characterized in that: The unloading shaft (213) is rotatably connected to the outer shell (211), with both ends penetrating the outer shell (211), and one end connected to the shaft of the stepper motor (214) fixed on the outside of the outer shell (211). The outer side of the unloading shaft (213) is provided with a flat plate structure distributed in a "+" shape. The guide block (212) is mirror-symmetrically installed inside the outer shell (211), and one side is an arc surface structure that contacts the outer edge of the unloading shaft (213).

4. The automatic recycling and crushing device for plastic waste according to claim 2, characterized in that: The crushing assembly (22) includes a crushing roller (221) movably installed inside the housing (211). One end of the crushing roller (221) is connected to a crushing motor (222), and a linkage gear (223) is fixedly installed on one end of the crushing roller (221).

5. The automatic recycling and crushing device for plastic waste according to claim 4, characterized in that: The crushing roller (221) is installed in the middle of the outer shell (211) in a mirror symmetrical manner, and the two ends of the crushing roller (221) penetrate the outer shell (211). The linkage gears (223) at one end of the crushing roller (221) on the front and rear sides of the outer shell (211) mesh with each other, and the crushing motor (222) is connected to one end of a crushing roller (221).

6. The automatic recycling and crushing device for plastic waste according to claim 2, characterized in that: The top of the fixed disk (234) is fixedly connected to the bottom of the outer shell (211). The surface of the fixed disk (234) is provided with annularly distributed opening structure, and the top of the opening structure of the fixed disk (234) is trumpet-shaped. The surface of the movable disk (236) is provided with openings of the same size as the fixed disk (234), and the opening orientation is opposite to that of the opening orientation of the fixed disk (234). The movable disk (236) is rotatably connected to the top of the hopper (235). The transmission motor (238) is fixed to the outside of the outer shell (211). The transmission gear (239) meshes with the gear ring (237).

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