Crushing device for preparing modified plastic particles

Abstract

The utility model belongs to the technical field of crushing equipment, and particularly relates to a crushing device for preparing modified plastic particles. The extension box is located above the pulverizer, an annular frame is arranged in the extension box, a filter plate is arranged at the bottom of the annular frame and used for intercepting large materials, and a cutting knife is arranged in the annular frame and used for cutting the large materials to facilitate subsequent pulverizing operation; and the protective sleeve is located in the extending box and is in a vertical sliding installation state, the lower end of the protective sleeve is in butt joint with a rotating shaft of the pulverizer, and an electric lifter is arranged above the extending box and used for driving the annular frame, the filter plate and the cutting knife to be stored in the top area of the extending box through the protective sleeve so as to reserve a lower pulverizing operation space. According to the utility model, large materials can be effectively prevented from directly abrading the blade, the service life of the blade is prolonged, and meanwhile, a pretreatment effect is automatically formed, so that the quality of crushing operation is guaranteed and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of crushing equipment technology, and in particular relates to a crushing device for preparing modified plastic particles. Background Technology

[0002] Modified plastic pellets are plastic pellets obtained by modifying virgin plastics through specific processes. They are widely used in many fields such as electrical appliances, automobiles, medical devices, and daily necessities. In plastic processing or product manufacturing, plastic pellets of different sizes and shapes are required to meet specific requirements, such as optimizing molding processes and improving product quality. Therefore, crushing operations are necessary to obtain plastic pellets of the required size.

[0003] Currently, when crushing raw materials for plastic granules, due to the varying sizes of the materials, larger materials can significantly wear down the blades, affecting both their lifespan and the crushing efficiency.

[0004] To address the aforementioned problems, this application proposes a modified plastic granule preparation and pulverizing device. Utility Model Content

[0005] The purpose of this invention is to provide a modified plastic granule preparation and pulverizing device, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a modified plastic granule preparation and pulverizing device, comprising: a pulverizer; an extension box located above the pulverizer, containing a ring frame, the bottom of which is equipped with a filter plate for intercepting large-sized materials, and a cutting blade inside the ring frame for cutting large-sized materials to facilitate subsequent pulverizing operations; a protective sleeve located inside the extension box in a vertically sliding installation state, the lower end of which is connected to the rotating shaft of the pulverizer; and an electric lifting device located above the extension box, used to retract the ring frame, filter plate, and cutting blade into the top area of ​​the extension box via the protective sleeve, thereby leaving space for pulverizing operations below.

[0008] Furthermore, the inner outer ring area of ​​the ring frame is provided with a guide plate and a pressure plate, the guide plate and the pressure plate are in a relative state, and the slope of the guide plate is in the direction of rotation, while the slope of the pressure plate is opposite to the direction of rotation.

[0009] Furthermore, a push block and a pressure block are respectively provided below the guide plate and the sheath, and the pressure plate and the pressure block are used to press the material down to promote downward discharge.

[0010] Furthermore, a limiting groove is provided inside the sheath for installing a pin, and the lower end of the pin is adjacent to the lower opening of the limiting groove.

[0011] Furthermore, a groove is provided above the rotating shaft of the crusher for engaging the pin, and a guide slope is provided at the lower end of the pin to form a guide and facilitate engagement.

[0012] Furthermore, after the ring frame is stored, the pin disengages from the pivot, and the lower end area of ​​the sheath is fitted onto the outside of the pivot to limit its movement and prevent swaying.

[0013] Furthermore, the sheath is also used to drive the filter plate to rotate, thereby facilitating the discharge of small-sized materials into the crusher.

[0014] This utility model has the following beneficial effects:

[0015] This utility model, by adding a filter plate in conjunction with a cutting blade, can pre-crush the material as soon as it enters, crushing it to a predetermined size before discharging it downwards for secondary crushing. This arrangement can effectively prevent large materials from wearing down the blades, which not only improves the service life of the blades but also improves the crushing efficiency of the material, shortens the production cycle, and improves product quality.

[0016] This invention promotes automatic material discharge through the rotation of the filter plate. After the material is crushed, the upward movement of the protective sleeve can also cause the filter plate to be stored in the upper area of ​​the crusher, leaving space for the crushing operation below. This ensures normal crushing operation while also taking into account the pretreatment of materials, effectively improving the practicality of the equipment.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0020] Figure 2 This is a schematic diagram of the external structure of the pulverizer of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal planar structure of the extension box of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the extension box of this utility model;

[0023] Figure 5 This is a partially enlarged structural diagram of part A of this utility model;

[0024] Figure 6 This is a schematic diagram of the combined structure of the guide plate and pressure plate of this utility model;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Crusher; 2. Extension box; 3. Ring frame; 4. Filter plate; 5. Cutting blade; 6. Guide plate; 7. Sheath; 8. Electric lifter; 9. Pressure plate; 10. Pin; 11. Pressure block; 12. Push block; 13. Limiting groove; 14. Card slot; 15. Guide slope. Detailed Implementation

[0027] 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.

[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0029] Please see Figure 1-6 As shown, this utility model is a modified plastic granule preparation and pulverizing device, including: a pulverizer 1;

[0030] The extension box 2 is located above the crusher 1 and has a ring frame 3 inside. The bottom of the ring frame 3 has a filter plate 4 for intercepting large-sized materials. The inside of the ring frame 3 has a cutting blade 5 for cutting large-sized materials to facilitate subsequent crushing operations.

[0031] The sheath 7 is located inside the extension box 2 and is installed in a vertical sliding state. The lower end of the sheath 7 is connected to the rotating shaft of the crusher 1. An electric lifter 8 is provided above the extension box 2, which is used to drive the ring frame 3, filter plate 4 and cutting blade 5 through the sheath 7 to store them in the top area of ​​the extension box 2, so as to leave space for crushing operation below.

[0032] This embodiment provides a plastic crushing device that can reduce blade wear. By using the cooperation of filter plate 4 and cutting blade 5, large-sized materials can be pre-treated and cut into smaller sizes before entering the subsequent crushing process. This reduces the wear of large-sized materials on the blades and ensures the quality of the crushing operation. At the same time, the filter plate 4 and cutting blade 5 can be automatically recycled to the top area to leave space for the crushing operation and ensure the crushing efficiency of the equipment.

[0033] The inner outer ring area of ​​the ring frame 3 is provided with a guide plate 6 and a pressure plate 9. The guide plate 6 and the pressure plate 9 are in a relative state. The guide plate 6 and the protective sleeve 7 are respectively provided with a push block 12 and a pressure block 11. The slope of the guide plate 6 is in line with the rotation direction, so that the material on the surface of the filter plate 4 can be discharged upward, which is convenient for cutting. The slope of the pressure plate 9 is opposite to the rotation direction. Combined with the pressure block 11 at the bottom, it can press down the material in the adjacent bottom area, promote the downward discharge of small materials, and prevent excessive accumulation of materials in the pretreatment space.

[0034] The sleeve 7 has a limiting groove 13 inside for mounting the pin 10. The lower end of the pin 10 is adjacent to the lower opening of the limiting groove 13. A slot 14 is provided above the rotating shaft of the crusher 1 for docking the pin 10. The lower end of the pin 10 is provided with a guide slope 15. When the pin 10 moves down to the top opening of the slot 14, the guide slope 15 first contacts the edge of the opening of the slot 14, guiding the pin 10 to rotate to a predetermined angle for docking.

[0035] When the ring frame 3 is stored, the pin 10 is disengaged from the pivot, and the lower part of the sheath 7 is fitted onto the outside of the pivot to limit its movement and prevent swaying.

[0036] Among them, the sheath 7 is also used to drive the filter plate 4 to rotate so as to facilitate the discharge of small materials into the crusher 1.

[0037] It is understandable that this utility model can effectively prevent large-sized materials from directly wearing down the blades, thereby increasing their service life, while automatically creating a pre-treatment effect to ensure the quality of the crushing operation and improve work efficiency.

[0038] A specific application of the operation process in this embodiment is as follows: In use, the material is first received by the pusher block 12 and large-sized materials are intercepted. Then, under the engagement of the pin rod 10 and the slot 14, the rotating shaft drives the cutting blade 5 to cut the material, breaking it into smaller pieces. After that, the material is pressed down by the pressure plate 9 to facilitate its discharge into the crusher 1 for secondary crushing. During this period, the rotation of the guide plate 6 will also push the material deposited at the bottom upwards for repeated cutting to make it reach the predetermined size in a short time, which facilitates the crushing operation. Finally, after all the material is discharged into the crusher 1, the electric lifter 8 drives the protective sleeve 7 to move upwards, so that the ring frame 3, the filter plate 4, and the cutting blade 5 are stored in the top area of ​​the extension box 2, leaving space for the crushing operation of the crusher 1. This arrangement not only enables the pre-treatment and cutting of materials to prevent damage to the blades, but also greatly improves the crushing efficiency and the performance and life of the equipment.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A modified plastic granule preparation and pulverizing device, characterized in that, include: Crusher (1); The extension box (2) is located above the crusher (1) and has a ring frame (3) inside. The bottom of the ring frame (3) is provided with a filter plate (4) for intercepting large-sized materials. The inside of the ring frame (3) is provided with a cutting blade (5) for cutting large-sized materials to facilitate subsequent crushing operations. The sheath (7) is located inside the extension box (2) and is installed in a vertical sliding state. The lower end of the sheath (7) is connected to the rotating shaft of the crusher (1). An electric lifter (8) is provided above the extension box (2) to drive the ring frame (3), filter plate (4) and cutter (5) through the sheath (7) to be stored in the top area of ​​the extension box (2) so as to leave space for crushing operation below.

2. The modified plastic granule preparation and pulverizing device according to claim 1, characterized in that: The inner outer ring area of ​​the ring frame (3) is provided with a guide plate (6) and a pressure plate (9). The guide plate (6) and the pressure plate (9) are in a relative state, and the slope of the guide plate (6) is in the direction of rotation, while the slope of the pressure plate (9) is opposite to the direction of rotation.

3. The modified plastic granule preparation and pulverizing device according to claim 2, characterized in that: The guide plate (6) and the sheath (7) are respectively provided with a push block (12) and a pressure block (11), and the pressure plate (9) and the pressure block (11) are used to press the material down to promote downward discharge.

4. The modified plastic granule preparation and pulverizing device according to claim 1, characterized in that: The sleeve (7) has a limiting groove (13) inside for installing a pin (10), and the lower end of the pin (10) is adjacent to the lower opening of the limiting groove (13).

5. The modified plastic granule preparation and pulverizing device according to claim 1, characterized in that: The crusher (1) has a slot (14) above its rotating shaft for connecting the pin (10), and the lower end of the pin (10) has a guide slope (15) for forming a guide to facilitate connection.

6. The modified plastic granule preparation and pulverizing device according to claim 1, characterized in that: After the ring frame (3) is stored, the pin (10) is disengaged from the pivot, and the lower end area of ​​the sleeve (7) is fitted onto the outside of the pivot to limit its movement and prevent swaying.

7. The modified plastic granule preparation and pulverizing device according to claim 1, characterized in that: The sheath (7) is also used to drive the filter plate (4) to rotate so as to facilitate the discharge of small materials into the crusher (1).

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