High-density polyethylene bottle recyclable shredder
By designing the crushing mechanism and the linkage structure between the feeding and discharging components of the crusher, stable crushing and quantitative feeding of high-density polyethylene bottles were achieved, solving the problems of crusher blockage and cumbersome manual operation, and improving the operational reliability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG HUANUO MEDICAL SUPPLIES CO LTD
- Filing Date
- 2025-10-18
- Publication Date
- 2026-06-26
AI Technical Summary
Existing high-density polyethylene bottle crushers suffer from clogging issues in material feeding control and are cumbersome to operate manually, making it difficult to meet production demands.
The design incorporates a linkage structure including a crushing mechanism, a feeding component, and a discharging component. The feeding of polyethylene bottles is controlled by mechanical transmission. The crushing blades of the rotating roller rotate in the opposite direction to perform shearing and tearing. The guide plate guides the bottle into the crushing area, and the mechanical opening and closing of the baffle plate achieves quantitative feeding.
It effectively avoids clogging of the crusher, improves the stability and safety of equipment operation, reduces the labor intensity of workers, and ensures the long-term durability and operational reliability of the equipment.
Smart Images

Figure CN224408167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyethylene recycling technology, and in particular to a shredder for recycling high-density polyethylene bottles. Background Technology
[0002] High-density polyethylene (HDPE) bottles are made of HDPE, a white powder or granular product that is non-toxic and odorless. HDPE has better hardness, tensile strength, and creep resistance than low-density polyethylene (LDPE). It also possesses wear resistance, electrical insulation, toughness, and cold resistance. At room temperature, it is insoluble in any organic solvent and is resistant to corrosion from acids, alkalis, and various salts. HDPE bottles are a recyclable resource.
[0003] A search revealed Chinese patent publication number CN212385796U, which discloses a device for recycling and regenerating polyethylene waste. The device includes a crusher with a base at its bottom and the upper end of the base welded to the bottom. A cover plate is located at the top of the crusher, with a shaft in the middle of the cover plate. This design prevents debris from flying out by using a rotatable shaft and cover plate at the feed inlet. However, this structure cannot control the amount of material entering the crusher. If too much material is fed at once, it can easily clog the feed inlet, affecting normal operation. Furthermore, the opening and closing of the cover plate is cumbersome during continuous or batch feeding, affecting feeding efficiency and failing to meet production needs. Therefore, this paper proposes a crusher for recycling high-density polyethylene bottles to address these problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a high-density polyethylene bottle recyclable crusher to solve the problems mentioned in the background.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-density polyethylene bottle recyclable crusher includes a support frame, a receiving hopper extending from the top to the bottom of the support frame, a crushing box at the top of the receiving hopper, a crushing mechanism extending from the outside of the crushing box, a guiding component at the top of the crushing box, and a discharging component extending from the outside of the guiding component.
[0007] The crushing mechanism includes two rotating rollers, which are rotatably installed inside the crushing chamber with one end extending to the outside. Crushing blades are fixedly installed on the outside of the rotating rollers. A rotating gear is fixedly installed at the end of the rotating rollers located outside the crushing chamber. Two transmission gears are rotatably installed on the outside of the crushing chamber and mesh with the two rotating gears respectively. The two transmission gears mesh with each other. A first motor is fixedly installed on the outside of the crushing chamber, and the output shaft of the first motor is fixedly connected to one of the rotating rollers.
[0008] Preferably, the material guiding assembly includes a material guiding box, which is fixedly installed on the top of the crushing box and communicates with its interior. A feed hopper is fixedly installed on the top of the material guiding box, and a motor frame is fixedly installed on the outside of the material guiding box. A second motor is fixedly installed on the outside of the motor frame, extending through to its interior.
[0009] Preferably, the feeding assembly includes two rotating rods rotatably mounted on the guide box and extending to its outer side. A baffle plate that fits against the inner wall of the guide box is fixedly mounted on the outer side of the rotating rod, and the two baffle plates fit against each other. A swing plate is fixedly mounted on one end of the rotating rod located on the outer side of the guide box. A turntable extending to one side of the swing plate is rotatably mounted on the outer side of the guide box. A push rod extending into the swing plate is fixedly mounted on one side of the turntable. A synchronous belt is installed between the output shaft of the second motor and the rotating shafts of the two turntables through transmission wheels.
[0010] Preferably, a plurality of guide plates adapted to the crushing blade are fixedly installed on the side wall of the crushing box, and a fixed cover is fixedly installed on the outside of the crushing box, which is sleeved on the outside of the rotating gear and the transmission gear and fixedly connected to the first motor.
[0011] Preferably, an auxiliary spring is fixedly installed between the baffle plate and the inner wall of the guide box, and the number of the auxiliary springs is several and they are symmetrically distributed from left to right.
[0012] Preferably, the swing plate has an elongated hole inside, and the push rod extends into the elongated hole.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This high-density polyethylene bottle recyclable crusher features a design with two counter-rotating rollers in its crushing mechanism. The fixed crushing blades on the rollers shear, tear, and crush the bottle during their relative motion, effectively breaking high-density polyethylene bottles into uniform plastic fragments. This design ensures the crushing capability even for rigid plastic bottles. The guide plate on the side wall of the crushing chamber guides the bottle accurately into the crushing area between the two crushing blades, preventing the bottle from tilting or spinning idly, thus ensuring the stability of the crushing process and the long-term durability of the equipment.
[0015] This high-density polyethylene bottle recyclable crusher utilizes a linked design between its guiding and discharging components. The discharging component, consisting of a second motor-driven turntable, push rod, swing plate, and rotating rod, controls the feeding of polyethylene bottles. Two baffles are normally closed to prevent uncontrolled entry into the crushing chamber. Only when the push rod drives the swing plate and rotating rod to rotate will the baffles briefly open, allowing a measured number of bottles to fall before resetting and closing. This batch feeding method effectively avoids problems such as clogging of the crusher's inlet caused by feeding too many bottles at once, ensuring the equipment's stable and reliable operation. The mechanical opening and closing mechanism, replacing manual operation, also significantly improves operational safety and reduces the labor intensity and risk of operator error. Attached Figure Description
[0016] Figure 1 A schematic diagram of the main structure of the high-density polyethylene bottle recyclable crusher provided by this utility model;
[0017] Figure 2 A side view perspective of the main body structure of the high-density polyethylene bottle recyclable crusher provided by this utility model;
[0018] Figure 3 A three-dimensional view of the internal structure of the crushing chamber of the high-density polyethylene bottle recyclable crusher provided by this utility model;
[0019] Figure 4 A three-dimensional view of the crushing mechanism of the high-density polyethylene bottle recyclable crusher provided by this utility model;
[0020] Figure 5 A three-dimensional view of the material guiding component structure of the high-density polyethylene bottle recyclable crusher provided by this utility model;
[0021] Figure 6 A three-dimensional view of the feeding component structure of the high-density polyethylene bottle recyclable crusher provided by this utility model.
[0022] Legend: 1. Support frame; 2. Receiving hopper; 3. Crushing box; 4. Crushing mechanism; 41. Rotating roller; 42. Crushing blade; 421. Guide plate; 43. Rotating gear; 44. Transmission gear; 45. First motor; 451. Fixed cover; 5. Material guiding assembly; 51. Material guiding box; 52. Feed hopper; 53. Motor frame; 54. Second motor; 6. Discharge assembly; 61. Rotating rod; 62. Baffle plate; 621. Auxiliary spring; 63. Swing plate; 64. Turntable; 65. Push rod; 651. Long slot; 66. Synchronous belt. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.
[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0027] Example
[0028] like Figures 1 to 6As shown, this utility model provides a technical solution: a high-density polyethylene bottle recyclable crusher, including a support frame 1, which serves as the main support for the entire crusher and is used to support and fix all other components. A receiving hopper 2 that extends through to the bottom of the support frame 1 is fixedly installed on the top of the support frame 1. A crushing box 3 that communicates with the inside of the receiving hopper 2 is fixedly installed on the top of the receiving hopper 2. The receiving hopper 2 is located at the bottom of the crushing box 3 and is used to receive the crushed plastic fragments.
[0029] The crushing chamber 3 is equipped with a crushing mechanism 4 that extends to its outer side. The crushing mechanism 4 includes two rotating rollers 41, which are rotatably installed inside the crushing chamber 3 and extend to its outer side at one end. Crushing blades 42 are fixedly installed on the outer side of the rotating rollers 41. Several guide plates 421 that are adapted to the crushing blades 42 are fixedly installed on the side wall of the crushing chamber 3. The guide plates 421 on the side wall of the crushing chamber 3 can guide the bottle to accurately enter the crushing area between the two crushing blades 42, avoiding the bottle from tilting or spinning empty, thus ensuring the stability of the crushing process and the long-term durability of the equipment.
[0030] A rotating gear 43 is fixedly installed at one end of the rotating roller 41 located outside the crushing box 3. Two transmission gears 44 are rotatably installed on the outside of the crushing box 3 and mesh with the two rotating gears 43 respectively. The two transmission gears 44 mesh with each other. A first motor 45 is fixedly installed on the outside of the crushing box 3. The output shaft of the first motor 45 is fixedly connected to one of the rotating rollers 41. A fixed cover 451 is fixedly installed on the outside of the crushing box 3, which is sleeved on the outside of the rotating gears 43 and the transmission gears 44 and fixedly connected to the first motor 45. This high-density polyethylene bottle recyclable crusher, by setting the design of the two rotating rollers 41 rotating in opposite directions in the crushing mechanism 4, the crushing blades 42 fixed on the rotating rollers 41 shear, tear and crush the bottle body in relative motion, which can effectively crush the high-density polyethylene bottle into uniform plastic fragments and ensure the crushing ability of hard plastic bottles.
[0031] A material guiding assembly 5 is fixedly connected to the top of the crushing box 3. The material guiding assembly 5 includes a material guiding box 51, which is fixedly installed on the top of the crushing box 3 and communicates with its interior. It serves as a transition channel for bottles before they enter the crushing box 3 from the feed hopper 52. The feed hopper 52 is fixedly installed on the top of the material guiding box 51. The feed hopper 52 is the inlet for manually or mechanically feeding polyethylene plastic bottles to be crushed. It is designed in a funnel shape to facilitate the collection of bottles. A motor frame 53 is fixedly installed on the outside of the material guiding box 51. A second motor 54 is fixedly installed on the outside of the motor frame 53 and extends through to its interior. The motor frame 53 serves to fix the position of the second motor 54, ensure its stable operation, and prevent loosening or displacement.
[0032] The material guiding assembly 5 has a material dispensing assembly 6 that extends through to its outer side. The material dispensing assembly 6 includes two rotating rods 61 that are rotatably mounted on the material guiding box 51 and extend through to its outer side. A baffle plate 62 that fits against the inner wall of the material guiding box 51 is fixedly installed on the outer side of the rotating rods 61. The two baffle plates 62 fit against each other. An auxiliary spring 621 is fixedly installed between the baffle plate 62 and the inner wall of the material guiding box 51. There are several auxiliary springs 621 that are symmetrically distributed on the left and right sides to help the baffle plate 62 quickly reset and close tightly, ensuring that the material guiding channel is closed in time and preventing bottles from falling or leaking.
[0033] A swing plate 63 is fixedly installed at one end of the rotating rod 61 on the outside of the guide box 51. A turntable 64 extending to one side of the swing plate 63 is rotatably installed on the outside of the guide box 51. A push rod 65 extending into the swing plate 63 is fixedly installed on one side of the turntable 64. An elongated hole 651 is opened inside the swing plate 63, and the push rod 65 extends into the elongated hole 651. A synchronous belt 66 is installed between the output shaft of the second motor 54 and the rotating shafts of the two turntables 64 through transmission wheels. This high-density polyethylene bottle recyclable crusher, through the linkage design of the guide assembly 5 and the discharge assembly 6, drives the turntable 64 and push rod 65 in the discharge assembly 6. The mechanical transmission structure consisting of rod 65, swing plate 63, and rotating rod 61 enables control of the feeding of polyethylene bottles. The two baffle plates 62 are normally closed to prevent bottles from entering the crushing chamber 3 uncontrolled. Only when the push rod 65 drives the swing plate 63 and rotating rod 61 to rotate will the baffle plates 62 open briefly to allow a fixed amount of bottles to fall, and then return to their original positions and close. This batch feeding method effectively avoids problems such as blockage of the crusher's feed inlet caused by feeding too many bottles at once, ensuring the stability and reliability of the equipment operation. Replacing manual operation with mechanical opening and closing also significantly improves operational safety and reduces the labor intensity and risk of misoperation for workers.
[0034] The working process of this utility model:
[0035] Step 1: When feeding materials, first put the polyethylene plastic bottles to be crushed into the top feed hopper 52. The bottles then enter the guide box 51. The guide box 51 is equipped with a feeding assembly 6, the core of which is two rotating rods 61. Each rotating rod 61 is fixed with a baffle plate 62 that fits tightly against the inner wall of the guide box 51. The two baffle plates 62 fit together in their natural state, which can close the guide channel and prevent the bottles from falling.
[0036] Step two: The opening and closing of the feeding component 6 is driven by the second motor 54. The second motor 54 drives the two turntables 64 to rotate synchronously through two synchronous belts 66. When the turntables 64 rotate, the push rod 65 slides in the elongated hole 651, pushing the swing plate 63 to swing, which in turn drives the rotating rod 61 and the baffle plate 62 to rotate around the axis together, so that a gap is created between the originally closed baffle plates 62. The bottles in the guide box 51 can fall into the crushing box 3 below through the gap. When the push rod 65 rotates to reset, the baffle plate 62 resets under the assistance of the auxiliary spring 621, and re-closes the guide channel, thereby realizing the intermittent and controllable feeding of bottles.
[0037] Step 3: The bottle falling into the crushing box 3 then enters the working area of the crushing mechanism 4. The crushing mechanism 4 includes two parallel rotating rollers 41. Each rotating roller 41 has a crushing blade 42 fixed on its outer side for shearing and crushing the bottle. The two rotating rollers 41 are driven by a rotating gear 43 and a transmission gear 44, thereby ensuring that the two rotating rollers 41 rotate in opposite directions, improving the tearing and crushing effect on the bottle. One of the rotating rollers 41 is directly driven by a first motor 45. The first motor 45 is fixedly installed on a fixed cover 451 on the outside of the crushing box 3. The fixed cover 451 also encloses the rotating gear 43 and the transmission gear 44, playing a protective and integrated role. A guide plate 421 is also fixed on the side wall of the crushing box 3 to guide the bottle smoothly into the crushing area between the two crushing blades 42, improving the crushing efficiency and uniformity.
[0038] 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. A high-density polyethylene bottle recyclable crusher, comprising a support frame (1), wherein a receiving hopper (2) extending from the top to the bottom of the support frame (1) is provided, and a crushing box (3) is provided on the top of the receiving hopper (2), characterized in that: The crushing box (3) is provided with a crushing mechanism (4) extending to its outside. The top of the crushing box (3) is provided with a material guiding component (5). The material guiding component (5) is provided with a material discharging component (6) extending to its outside. The crushing mechanism (4) includes two rotating rollers (41) which are rotatably installed inside the crushing box (3) and extend to the outside of the box. A crushing blade (42) is fixedly installed on the outside of the rotating roller (41). A rotating gear (43) is fixedly installed on the outside of the rotating roller (41) located outside the crushing box (3). Two transmission gears (44) are rotatably installed on the outside of the crushing box (3) and mesh with the two rotating gears (43) respectively. The two transmission gears (44) mesh with each other. A first motor (45) is fixedly installed on the outside of the crushing box (3). The output shaft of the first motor (45) is fixedly connected to one of the rotating rollers (41).
2. The high-density polyethylene bottle recyclable shredder according to claim 1, characterized in that: The material guiding assembly (5) includes a material guiding box (51), which is fixedly installed on the top of the crushing box (3) and communicates with its interior. A feeding hopper (52) is fixedly installed on the top of the material guiding box (51), and a motor frame (53) is fixedly installed on the outside of the material guiding box (51). A second motor (54) is fixedly installed on the outside of the motor frame (53) and extends through to its interior.
3. The high-density polyethylene bottle recyclable shredder according to claim 2, characterized in that: The feeding assembly (6) includes two rotating rods (61) which are rotatably mounted on the guide box (51) and extend to its outer side. A baffle plate (62) that fits against the inner wall of the guide box (51) is fixedly mounted on the outer side of the rotating rod (61). The two baffle plates (62) fit against each other. A swing plate (63) is fixedly mounted on one end of the rotating rod (61) located on the outer side of the guide box (51). A turntable (64) extending to one side of the swing plate (63) is rotatably mounted on the outer side of the guide box (51). A push rod (65) extending into the interior of the swing plate (63) is fixedly mounted on one side of the turntable (64). A synchronous belt (66) is installed between the output shaft of the second motor (54) and the rotating shaft of the two turntables (64) respectively through a transmission wheel.
4. The high-density polyethylene bottle recyclable shredder according to claim 1, characterized in that: A number of guide plates (421) adapted to the crushing blade (42) are fixedly installed on the side wall of the crushing box (3). A fixed cover (451) is fixedly installed on the outside of the crushing box (3), which is sleeved on the outside of the rotating gear (43) and the transmission gear (44) and fixedly connected to the first motor (45).
5. The high-density polyethylene bottle recyclable shredder according to claim 3, characterized in that: An auxiliary spring (621) is fixedly installed between the baffle plate (62) and the inner wall of the guide box (51). The number of auxiliary springs (621) is several and they are symmetrically distributed from left to right.
6. The high-density polyethylene bottle recyclable shredder according to claim 3, characterized in that: The swing plate (63) has an elongated hole (651) inside, and the push rod (65) extends into the elongated hole (651).