Winding-free waste crushing device

Abstract

The embodiment of the utility model provides a winding-free waste crushing device which comprises a feeding hopper used for containing waste to be crushed; the crushing bin is connected with the feeding hopper and is used for bearing and realizing crushing operation; the upper crushing disc is arranged in the crushing bin and is provided with a plurality of upward spiral bulges; the lower crushing disc is installed below the upper crushing disc, straight-edge cutter teeth and blunt-edge edges which are arranged in a staggered mode are arranged on the circumference of the lower crushing disc, the shapes of the straight-edge cutter teeth are designed in a gradient mode, and the adjacent straight-edge cutter teeth are arranged in a staggered mode; the collecting chamber is connected to the lower part of the crushing bin and is used for receiving crushed products; the gaps among the upward spiral protrusions of all the upper crushing discs are arranged in a gradually-increasing mode and are gradually increased from the center to the edge area. Through the scheme of the embodiment of the invention, the problem of how to optimize the shape and arrangement of the crushing cutters to improve the waste treatment efficiency and avoid material winding can be solved.

Description

Technical Field

[0001] This application relates to the field of waste treatment equipment technology, specifically to a non-entanglement waste crushing device. Background Technology

[0002] Waste crushing equipment is a specialized device designed for the efficient processing of various types of waste. However, in practical applications, optimizing the shape and arrangement of the crushing blades to improve waste processing efficiency while preventing material entanglement has become a significant technical challenge. Specifically, improper blade shape and arrangement can lead to material entanglement during the crushing process, thereby affecting processing efficiency and potentially damaging the equipment. Summary of the Invention

[0003] In view of this, the present disclosure provides a non-entanglement waste crushing device, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a non-entanglement waste shredding device, comprising:

[0005] The feed hopper is used to hold the waste to be crushed.

[0006] The crushing chamber, connected to the feed hopper, is used to support and perform the crushing operation;

[0007] The upper crushing disc, located inside the crushing chamber, has several upward spiral protrusions;

[0008] The lower crushing disc is installed below the upper crushing disc. The lower crushing disc has staggered straight cutting teeth and blunt edges arranged on its circumference. The straight cutting teeth have a gradient shape and adjacent straight cutting teeth are staggered.

[0009] A collection chamber, connected below the crushing chamber, serves to receive the crushed product; wherein

[0010] The gaps between the upward spiral protrusions of all the above-mentioned crushing discs are arranged in an increasing manner, gradually increasing from the center to the edge; and

[0011] An additional ring of soft rubber scrapers is added to the circumference of the lower crushing disc, and the soft rubber scrapers are fixed at the outermost edge of the lower crushing disc. The straight blade teeth are set on the inner circumference of the lower crushing disc 4, relative to the soft rubber scrapers.

[0012] Preferably, the feed hopper is installed directly above the crushing chamber and is equipped with a controllable valve.

[0013] Preferably, the feed hopper has a built-in spiral guide groove.

[0014] Preferably, the raised surface of the upper crushing disc is provided with a wear-resistant ceramic coating.

[0015] Preferably, a small arc transition section is added to the end of each straight-edge cutter tooth.

[0016] Preferably, the soft rubber scraping strip is clamped to the peripheral edge of the lower crushing disc.

[0017] Preferably, a sieve is provided at the entrance of the collection chamber.

[0018] Preferably, a diversion plate is provided on the inner bottom surface of the collection chamber. <00,00040>Preferably, the upper crushing disc and the lower crushing disc are controlled by a regulating device.

[0020] The embodiment of the present disclosure provides a non-winding waste crushing device, including: a feed hopper for accommodating waste to be crushed; a crushing chamber connected to the feed hopper for carrying and implementing crushing operations; an upper crushing disc provided in the crushing chamber and having a number of upward spiral protrusions; a lower crushing disc installed below the upper crushing disc, with straight-edge cutter teeth and blunt-edge edges arranged alternately on the circumference of the lower crushing disc. Among them, the shape of the straight-edge cutter teeth is a gradient design, and adjacent straight-edge cutter teeth are arranged in a staggered layout; a collection chamber connected below the crushing chamber for receiving the crushed products; the gaps between a number of upward spiral protrusions of all the above upper crushing discs are arranged in an increasing pattern, gradually increasing from the center to the edge area. Through the solution of the embodiment of the present disclosure, it is possible to solve the problem of how to optimize the shape and arrangement of the crushing tools to improve the waste treatment efficiency while avoiding material entanglement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is an axonometric structural view of the waste crushing device of the present utility model;

[0023] Figure 2 For the present utility model Figure 1 It is a structural view of the upper and lower crushing discs;

[0024] Figure 3 For the present utility model Figure 2 It is an enlarged view of the upper crushing disc;

[0025] Figure 4 For the present utility model Figure 1 It is a top view of the lower crushing disc.

[0026] In the diagram: 1. Feed hopper; 2. Crushing chamber; 3. Upper crushing disc; 4. Lower crushing disc; 5. Collection chamber; 6. Controllable valve; 7. Inclined guide groove; 8. Wear-resistant ceramic coating; 9. Cutting teeth; 10. Arc-shaped transition section; 11. Soft rubber scraper; 13. Screen; 14. Guide plate; 15. Control device Detailed Implementation

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] like Figure 1 As shown, the non-entanglement waste crushing device of this application includes a feed hopper 1, a crushing chamber 2, an upper crushing disc 3, a lower crushing disc 4, and a collection chamber 5. The device is designed for efficient crushing of various types of waste materials while preventing material entanglement during the crushing process. The specific structure and functional characteristics of each component will be described in detail below.

[0029] First, the waste crushing device includes a feed hopper 1 located at the top of the device. The feed hopper 1 is connected to the crushing chamber 2 below, and its function is to provide a stable material input, ensuring that the waste to be crushed can smoothly enter the crushing area. Through this vertical installation, the material can slide evenly from above into the crushing chamber 2, forming a preliminary accumulation space before entering the crushing stage.

[0030] Secondly, a crushing chamber 2 is located directly below the feed hopper 1, which is where the core processing operations are carried out. The crushing chamber 2 houses the upper crushing disc 3 and allows its internal rotational movement; in order to enhance work efficiency and reduce unnecessary mechanical wear, the entire inner wall surface of the chamber is treated with a special process to keep it smooth.

[0031] The upper crushing disc 3 is installed in the center of the crushing chamber 2 and is positioned at a higher level relative to the lower crushing disc 4. It is characterized by having multiple upward-spiraling protrusions (see details). Figure 3When material enters the crushing chamber, these carefully designed protrusions cause the material to be subjected to centrifugal and shear forces simultaneously along the axial and radial directions. This process not only allows the material to disperse naturally and avoids the possibility of large-area contact with the rotating parts of the machine, but also greatly increases the initial crushing speed of the material, thus laying a good foundation for more thorough grinding in the future.

[0032] The lower shredding disc 4 is used for precision cutting and final processing tasks. A series of straight-edged blades 9 are fixed around the disc 4, alternately arranged with blunt-edged edges. The blades 9 have a gradually rounded shape from the tip to the rear, significantly reducing the chance of slender or soft materials adhering to or getting caught in them while maintaining excellent shearing performance. Furthermore, the individual blades are arranged in a staggered pattern, enhancing the ability to comprehensively decompose and tear waste of various materials and shapes.

[0033] Finally, the crushed residue is fed into a collection chamber 5 located directly below the crushing chamber 2 for subsequent discharge or direct packaging and transport. This collection chamber seamlessly connects with the previous processing area to form a complete streamlined channel structure, facilitating the smooth transition of finished materials to the designated location. It also effectively prevents external dust and other pollutants from interfering with the operation process, further ensuring that product quality and environmental standards are met.

[0034] This application, through the optimized cutter design described above—namely, the use of a spiral protrusion on the upper crushing disc 3 to guide the feed, combined with a lower crushing disc 4 featuring alternating straight and blunt edges—solves the problem of frequent jamming and stagnation found in ordinary crushing equipment. Especially for flexible materials such as ropes, fibers, plastics, wire mesh, fabrics, leather, paper, and other soft, easily tangled materials, this unique device significantly reduces the occurrence of inefficient processing and inconvenient maintenance caused by their shape and physical properties.

[0035] In one embodiment, such as Figure 2 As shown, the feed hopper 1 of the non-entanglement waste crushing device of this application is installed directly above the crushing chamber 2 and is equipped with a controllable valve 6 for regulating the material entry rate and quantity. This design ensures that the material enters the crushing chamber 2 at a uniform speed, thereby preventing blade blockage caused by excessive material. Specifically, the feeding process can be flexibly controlled by adjusting the opening of the controllable valve 6, achieving precise material management. This valve has a robust and reliable structure, is made of durable materials, and is suitable for various working conditions.

[0036] The feed hopper 1 and crushing chamber 2 are tightly connected, forming an efficient and smooth transmission channel, allowing the material to be crushed to fall smoothly from the feed inlet into the crushing chamber 2. In actual operation, to avoid problems caused by uneven feeding, such as material accumulation leading to equipment overload or damage to the blade sharpness, this device is specially equipped with a top-mounted feeding system with a control valve to ensure a smooth and orderly process. Furthermore, this design also reduces unnecessary mechanical wear and extends the service life of the crushing equipment.

[0037] Specifically, the controllable valve 6 can be operated by installing a high-precision electric actuator or a hydraulic control system. When it is necessary to control the input of different types of waste materials, the valve can be opened and closed according to a predetermined pattern through external programming instructions or preset parameters, thereby achieving precise control. This control method can not only cope with the requirements of changing working scenarios, but also further improve the degree of automation and operational efficiency.

[0038] In one embodiment, the crushing chamber 2 of the non-entanglement waste crushing device of this application is made of a high-hardness alloy material, capable of withstanding the high pressure and high temperature environment that may be generated during the waste crushing process. This material selection ensures long-term efficient operation of the equipment. To improve the conveying of incoming materials, a spiral guide groove 7 is specially set in the feed hopper 1, the presence of which prompts the incoming materials to move along a specific path.

[0039] The spiral guide groove is installed on the inner wall of the feed hopper 1 and arranged in a spiral shape along the length of the crushing chamber 2. This not only ensures that the material moves smoothly along the axial direction, but also promotes it to make radial expansion movement at the same time, so that the distribution of the material in the crushing chamber is more uniform.

[0040] Furthermore, after solid waste enters the feed hopper 1, it moves forward along a spiral trajectory during the crushing process thanks to the spiral guide groove. Upon entering the crushing chamber 2, the unique geometric structures of the upper and lower crushing discs, such as the spiral protrusions on the upper crushing disc 3 and the unique combination of blades 9 and blunt edges on the lower crushing disc 4, effectively ensure that materials of various shapes and textures can achieve ideal dispersal treatment, thus realizing relatively uniform and meticulous crushing of different types of waste.

[0041] In one embodiment, see specific reference. Figure 3The upper crushing disc 3 of the non-entanglement waste crushing device of this application is provided with a raised structure, and the raised structure is surface-treated with a wear-resistant ceramic coating 8. This coating not only improves the overall durability of the raised structure, but also gives it sufficient friction when in contact with materials. In this way, it effectively ensures the uniform dispersion of materials during the crushing process, while preventing materials from sticking to the upper crushing disc 3 or sliding. This design improves the working efficiency of the device, making the crushing and dispersion of waste more rapid and thorough.

[0042] Specifically, the raised structures are distributed on the side of the upper crushing disc 3 facing the material, and are precision-manufactured and coated with a layer of special wear-resistant ceramic material. This material can withstand high-pressure environments and highly abrasive conditions, ensuring that it will not wear out severely during long-term operation and maintaining constant frictional performance. During operation, when the material enters the crushing chamber 2 and comes into contact with the upper crushing disc 3, the increased coefficient of friction significantly enhances the interaction between materials and between the material and the upper crushing disc 3, promoting more efficient crushing and dispersion. To further optimize the application effect of this feature, for example, in the treatment of organic materials such as plant fiber waste, the enhanced frictional properties of the coating can reliably fix and cut these lighter and more easily suspended materials into finer pieces. In addition, the wear-resistant ceramic coating 8 can also adjust specific parameters such as roughness and hardness to match specific types of waste crushing tasks according to different applications.

[0043] In another embodiment, such as Figure 3 As shown, the upper crushing disc 3 has several upward spiral protrusions. Notably, the gaps between these spiral protrusions are arranged in a gradually increasing pattern, expanding from the center to the edge. This gradual spacing better accommodates materials of different sizes, optimizing the material's diffusion during the crushing process. After entering the crushing chamber 2, because the distance between the protrusions gradually increases from the center to the edge, the material not only disperses radially during high-speed rotation but also diffuses evenly outwards, resulting in a more balanced material distribution throughout the working area.

[0044] The aforementioned structural features help prevent material from concentrating in a particular area and reduce localized overloading. A well-planned layout of the protruding points improves the continuity and consistency of material handling. For example, smaller material particles entering the device initially can be smoothly guided to larger spacing sections for further processing; larger objects can be initially broken down at larger contact points and further dispersed into a wider working area. Specifically, spiral protrusions are installed on the surface of the upper crushing disc 3, and the increasing gaps between them are not equidistant but expand systematically, allowing waste materials of different sizes and shapes to be effectively sorted and processed in a dynamically changing space, ensuring overall operational efficiency and crushing effect. Based on this, the upper and lower crushing discs 4 cooperate to achieve more precise cutting and tearing without hindering material movement.

[0045] In one embodiment, such as Figure 4 As shown, the lower crushing disc 4 of the non-entanglement waste crushing device of this application is located below the upper crushing disc 3. Specifically, the lower crushing disc 4 has straight cutting teeth 9 and blunt edges arranged alternately on its circumference. Straight cutting teeth 9 generally refer to blades with straight cutting edges. This design provides a clean, smooth cutting effect and better control during cutting. Straight cutting teeth are commonly found in kitchen knives, scissors, and various industrial and hand tools. The advantage of straight cutting is that it is easy to sharpen and maintain, and can be used for delicate work. Blunt edges refer to edges that have not been sharpened or are designed to be less sharp.

[0046] The layout of these components allows the device to adjust its angle according to the cutting requirements of different waste physicochemical properties, effectively preventing material from tangling on rotating parts, especially when handling long, tough objects. The straight-edged blades 9 are used for efficient shearing and crushing operations, while the blunt edges ensure that material does not become excessively entangled due to the blades being too sharp, thus improving the overall applicability of the crushing device.

[0047] This staggered design optimizes the cutting of different types of waste by varying the relative angle between the teeth 9 and the blunt edges. The straight teeth 9 employ a gradient design, with a sharp front end for initially cutting thicker or harder parts, gradually becoming blunt at the rear end to handle thinner or more flexible materials. Furthermore, the staggered arrangement of the straight teeth 9 and the close fit of the blunt edges create an effective anti-entanglement mechanism. This gradual angle transition, combined with the staggered distribution of the teeth 9, enhances the tearing effect during cutting and prevents material entanglement.

[0048] For example, a set of straight-edged blades 9 can be installed at a predetermined angle, followed immediately by a set of blunt-edged blades, ensuring that the two are arranged alternately. This ensures that the device is suitable for a wider range of waste treatment tasks. Throughout the installation process, the positional relationship and connection method of each component must be precisely calculated to ensure a smooth and continuous crushing process and achieve optimal crushing results.

[0049] In one embodiment, continue to refer to Figure 4 This application discloses a non-entanglement waste shredding device with a slightly curved transition section 10 added to the end of the straight-bladed teeth 9. This design enables more precise cutting of stronger objects through the micro-cutting force generated during rotation, and effectively reduces the chance of material entanglement by utilizing the smooth edge. The straight-bladed teeth 9 work in conjunction with the blunt edge on the lower shredding disc 4, further optimizing the processing effect on waste materials of various shapes and characteristics. In terms of specific installation and structure, the curved transition section 10 is added at the end of each set of straight-bladed teeth 9 to ensure a smooth connection between the working surface of each tooth 9 and the transition section, improving cutting accuracy while ensuring overall strength.

[0050] For example, an additional grinding process can be performed after the straight-bladed cutting teeth 9 have been cast or cut. This ensures a smooth transition of the arc at each end, without affecting the overall shape and rigidity of the cutting teeth 9, while generating additional micro-cutting action and reducing the risk of hard scrap entanglement, making the entire cutting process more efficient and fluid. In this way, the device can maintain high performance stability and durability throughout operation.

[0051] In one embodiment, a soft rubber scraper 11 is additionally attached to the circumferential edge of the lower crushing disc 4 of the non-tangling waste crushing device of this application. This design is specifically for small fragments or wet, sticky substances that have not completely detached from the wall of the crushing chamber 2, aiming to effectively remove these residues, ensure the cleanliness of the inner wall of the crushing chamber 2, and prevent residual materials from affecting the working performance of the blades installed on the upper crushing disc 3 and the lower crushing disc 4. Specifically, by choosing a soft rubber material, the scraper can flexibly contact the wall during the crushing process, achieving efficient cleaning while reducing wear on the internal surfaces of the equipment.

[0052] The soft rubber scraper 11 is fixed at the outermost edge of the lower crushing disc 4, and its overall shape is an annular strip. In terms of installation, the scraper is directly fixed around the entire outer perimeter of the lower crushing disc 4 and rotates synchronously with it. One end of the scraper 11 is close to the inner wall of the crushing chamber, and an appropriate contact pressure is set to adapt to the internal structure of the crushing chamber, thereby achieving continuous cleaning work along the direction perpendicular to the main axis. For example, the scraper can be installed on the lower crushing disc 4 using an embedded or snap-fit ​​method to ensure its stability and durability. Furthermore, the soft rubber material should possess certain elasticity and wear resistance to ensure stable operation over a long period and effective completion of the intended task.

[0053] As for the positional relationship between the soft rubber scraper 11 and the straight blade tooth 9, the straight blade tooth 9 can be set on the inner circumference of the lower crushing disc 4, while the soft rubber scraper 11 is set on the outermost edge.

[0054] Return to reference Figure 2 In one embodiment, a screen 13 is installed at the inlet of the collection chamber 5 of the non-entanglement waste crushing device of this application. The screen 13 has an adjustable aperture size according to the particle size requirements of the crushed product. Specifically, the screen 13 is installed at the inlet of the collection chamber 5 and adjacent to the outlet of the crushing chamber 2. This arrangement ensures that all debris coming out of the crushing chamber 2 must pass through the screen 13, effectively intercepting larger debris exceeding the set size limit. Larger debris that does not meet the standard is guided to the return channel and sent back to the crushing chamber 2 for secondary or multiple processing until the required particle size is achieved. In this way, it is ensured that the product output from the device meets the predetermined standards.

[0055] Furthermore, the adjustable aperture size of screen 13 allows for flexible adjustment of the aperture size according to different waste types and user needs. In practical applications, the operator can adjust the aperture size via external control mechanisms, such as handles or electric knobs. When processing different materials, the particle size of the output product can be precisely controlled according to the specific application environment. This adjustable function improves the applicability and ease of operation of the device.

[0056] In one embodiment, this feature is technically achieved by placing a set of guide vanes 14 above the screen 13, allowing larger particles to smoothly slide along the guide vanes 14 towards the return channel. For example, during installation, the guide vanes 14 and the screen 13 form a smooth transition surface, preventing large particles from accumulating or clogging the return path. This design optimizes the flow direction of debris, ensuring that debris that does not meet the particle size requirements can be efficiently reintroduced into the crushing chamber 2 for reprocessing without affecting the overall system efficiency.

[0057] In one embodiment, a guide plate 14 is fitted onto the bottom surface of the collection chamber 5 of the non-tangling waste crushing device of this application. The guide plate 14 has a moderate inclination angle and a smooth, flowing surface. Its purpose is to ensure that the crushed material can flow rapidly out of the collection chamber 5, thereby preventing material accumulation at the bottom and reducing the risk of residue re-mixing with large pieces of material that have not been fully crushed.

[0058] Specifically, the guide plate 14 is installed on the inner bottom of the collection chamber 5, covering almost the entire bottom surface to guide the flow direction. To achieve rapid removal and prevent accumulation, its surface undergoes a special polishing process to ensure an extremely low coefficient of friction, while being designed with an appropriate slope to accommodate the free sliding of particles of various shapes and sizes away from the device outlet. For example, by calculating the optimal inclination angle, the guide plate 14 can ensure that most of the debris after the crushing process is discharged directly outward along a predetermined path by gravity.

[0059] In one embodiment, all rotating components of the non-entanglement waste shredding device of this application, such as the upper shredding disc 3, the lower shredding disc 4, and their respective blade assemblies, are driven by independent motors. Each independent motor is connected to a corresponding shredding component, enabling each shredding unit to operate independently. The independent motors are connected to a control device 15, which includes a control module with adjustable speed. This control system precisely controls the speed of different motors, thereby flexibly handling various types of waste, whether hard or soft materials.

[0060] This configuration ensures that each crushing component operates at the optimal speed required for best crushing results. Furthermore, the position and installation method of each individual motor are carefully designed to allow for tight and secure integration within the main body of the equipment, minimizing extra space occupation while ensuring good heat dissipation and easy maintenance. For example, the motors for the upper crushing disc 3 and the lower crushing disc 4 are each mounted on a support structure near their respective crushing discs and directly connected to their respective driven crushing components via drive shafts, ensuring efficient and stable energy transmission.

[0061] In actual operation, when this device is in use, the waste to be crushed is fed into the feed hopper 1, and then falls into the crushing chamber 2 under gravity. After entering the crushing chamber 2, the waste first comes into contact with the upper crushing disc 3. Because the surface of the upper crushing disc 3 has upward spiral protrusions, the material can be dispersed by forces in both the axial and radial directions in the initial stage of entering the crushing chamber 2, effectively reducing the risk of material entanglement and improving waste processing efficiency. The material then falls onto the lower crushing disc 4, where it is further cut and torn by the staggered straight blades 9 and blunt edges arranged on the circumference of the lower crushing disc 4. The straight blades 9 ensure the cutting effect, while the blunt edges prevent slender or soft materials from getting entangled in the rotating parts. The gradient blade design transitions from a sharp front end to a blunter rear end, thereby effectively reducing the risk of entanglement and improving shearing and crushing efficiency. In addition, the staggered arrangement of adjacent blades enhances the tearing effect on the material in different directions. Finally, the crushed waste enters the collection chamber 5 through the bottom of the crushing chamber 2 to complete the entire crushing process and is received for subsequent processing.

[0062] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wrapless waste shredding device, characterized by, include: Feed hopper (1) is used to hold the waste to be crushed; The crushing chamber (2) is connected to the feed hopper (1) and is used to carry and realize the crushing operation; The upper crushing disc (3) is set inside the crushing chamber (2) and has several upward spiral protrusions; The lower crushing disc (4) is installed below the upper crushing disc (3). The lower crushing disc (4) is provided with staggered straight blade teeth (9) and blunt edges on its circumference. The straight blade teeth are designed with a gradient shape and adjacent straight blade teeth are staggered. The collection chamber (5), connected below the crushing chamber (2), serves to receive the crushed product; wherein The gaps between the upward spiral protrusions of all the above-mentioned crushing discs (3) are arranged in an increasing manner, gradually increasing from the center to the edge region; and An additional soft rubber scraper (11) is added to the circumferential edge of the lower crushing disc (4), and the soft rubber scraper (11) is fixed at the outermost edge of the lower crushing disc (4), and the straight blade teeth (9) are set on the inner circumference of the lower crushing disc (4) relative to the soft rubber scraper (11).

2. A wrap-around-free waste shredding device according to claim 1, characterized in that: The feed hopper (1) is installed directly above the crushing chamber (2) and is equipped with a controllable valve (6).

3. A wrap-around-free waste shredding device according to claim 2, characterized in that: The feed hopper (1) has a built-in spiral guide groove (7).

4. The non-entanglement waste crushing device according to claim 1, characterized in that: The raised structure surface of the upper crushing disc (3) is provided with a wear-resistant ceramic coating (8).

5. The non-entanglement waste crushing device according to claim 1, characterized in that: Each set of straight-edged cutting teeth (9) has a small arc-shaped transition section (10) added to the end.

6. The non-entanglement waste crushing device according to claim 5, characterized in that: The soft rubber scraper (11) is engaged with the circumferential edge of the lower crushing disc (4).

7. The non-entanglement waste crushing device according to claim 1, characterized in that: A screen (13) is installed at the entrance of the collection chamber (5).

8. The non-entanglement waste crushing device according to claim 7, characterized in that: The bottom surface of the collection chamber (5) is equipped with a baffle plate (14).

9. The non-entanglement waste crushing device according to claim 1, characterized in that: The upper crushing disc (3) and the lower crushing disc (4) are controlled by a control device (15).

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