A raw material pulverizer for rubber products

Abstract

The present disclosure relates to the technical field of rubber product processing, and one embodiment of the present disclosure provides a raw material pulverizer for preparing rubber products, which comprises a shell and a feeding cover, the feeding cover is installed on the top of the shell, a guide-in assembly is arranged in the shell, an inner plate frame is vertically fixed in the shell, a pulverizing assembly is arranged in the shell, the pulverizing assembly comprises a rotating shaft, the rotating shaft is connected in the shell through horizontal power-driven rotation, a plurality of ring cutting blades are arranged on the rotating shaft, a plurality of cutting grooves are formed in the side surface of the inner plate frame, the ring cutting blades are located in the cutting grooves, a plurality of baffles are arranged on the side surface of the inner plate frame, and the baffles correspond to the positions of the ring cutting blades. Through the above technical scheme, the technical problem of uneven particle size of existing rubber raw materials in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of rubber product processing, and more specifically, to a raw material pulverizer for preparing rubber products. Background Technology

[0002] In the rubber product manufacturing process, raw material pretreatment is a fundamental step in ensuring the quality of the finished product. It requires crushing blocky and granular rubber raw materials (such as natural rubber blocks and recycled rubber granules) to a uniform particle size to provide suitable raw materials for subsequent processes such as rubber mixing and vulcanization. The raw material crusher used in rubber product manufacturing is a core pretreatment device, and its crushing uniformity directly determines the mixing effect of the rubber raw materials and the performance of the final product. As rubber products develop towards higher precision and higher performance, the shortcomings of traditional crushing methods are becoming increasingly apparent: existing rubber raw material crushing generally suffers from uneven particle size, leading to poor adaptability to subsequent processing steps. This not only affects the quality stability of rubber products but also restricts production efficiency, making it difficult to meet the demands of refined production. Traditional rubber raw material crushing often relies on simple crushers or manual crushing. Simple crushers mostly use a single-stage impact crushing structure, lacking precise particle size control and screening mechanisms. During the crushing process, over-crushing and incomplete crushing often coexist. Some raw materials are crushed into excessively fine powder, which is prone to agglomeration in subsequent mixing; some raw materials remain in large lumps, unable to be fully mixed with other auxiliary materials, forming mixing dead zones. Manual crushing is affected by operator experience, making it difficult to uniform the crushing force and frequency, further aggravating the particle size differences of the raw materials.

[0003] Therefore, developing a raw material crusher for preparing rubber products that can achieve uniform crushing of rubber raw materials has become an urgent need to improve the quality and production efficiency of rubber products. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a raw material pulverizer for preparing rubber products, which solves the technical problem of uneven particle size that is common in the pulverization of existing rubber raw materials.

[0005] According to one aspect, at least one embodiment of this disclosure provides a raw material pulverizer for preparing rubber products, comprising: The housing and the feeding hood, wherein the feeding hood is mounted on the top of the housing; An import component is disposed within the housing; The inner plate frame and the crushing assembly are provided, wherein the inner plate frame is vertically fixed in the outer shell and the crushing assembly is disposed in the outer shell; The crushing assembly includes a rotating shaft, which is rotatably connected to the housing via a horizontal electric drive. Several circumferential cutting blades are provided on the rotating shaft. Several cutting grooves are opened on the side surface of the inner plate frame, and the circumferential cutting blades are all located in the cutting grooves. Several baffles are provided on the side surface of the inner plate frame, and the baffles are positioned corresponding to the circumferential cutting blades.

[0006] As a further technical solution, a sliding hopper is provided at the lower end of the side surface of the inner plate frame, and a discharge port is opened on the side surface of the outer shell. One end of the sliding hopper passes through the discharge port and is located on the outside. A cutting roller is horizontally rotatably connected inside the outer shell.

[0007] As a further technical solution, the cutting roller is driven to rotate by electricity. The cutting roller is located in the sliding hopper. A top frame is fixedly connected to the top of the sliding hopper. A movable frame is vertically and slidably connected inside the top frame.

[0008] As a further technical solution, the bottom of the movable frame is provided with several pelletizing blades, the top of the top frame is equipped with a drive motor, the output end of the drive motor is provided with an eccentric shaft, and one end of the eccentric shaft is rotatably connected to a transmission rod.

[0009] As a further technical solution, the lower end of the transmission rod is rotatably connected to the surface of the movable frame via a pin, and a number of knife grooves are provided on the bottom surface of the sliding hopper, with the knife grooves corresponding to the positions of the pelletizing blades.

[0010] According to another aspect, in at least one embodiment of the present invention, the inlet assembly includes several pairs of inlet rollers, all of which are horizontally rotatably connected within the housing, each pair of inlet rollers being vertically downward distributed, and one of the inlet rollers being electrically driven to rotate.

[0011] As a further technical solution, each of the two pairs of guide rollers is provided with a transmission gear at one end, and one of the pair of guide rollers with the transmission gear is provided with a transmission wheel, and the transmission wheels rotate through belt drive.

[0012] As a further technical solution, the bottom of the hopper is inclined downwards.

[0013] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the crushing assembly solves the problem of uneven particle size in traditional crushing through a three-stage crushing and precise limiting design. The ring-cutting blade rotates within the cutting groove, working with a baffle to cut the raw material into regular strips; the cutting roller further cuts the strips into finer strips, laying the foundation for pelletizing; the eccentric shaft drives the pelletizing blade in reciprocating motion, working with the cutting groove to cut the fine strips into uniform particles. This three-stage crushing process ensures precise processing of the raw material at every step from lumps to particles, avoiding over-crushing or incomplete crushing. The inclined design of the hopper guides the smooth flow of the raw material, and the coordinated operation of all components ensures consistent particle size, providing high-quality raw materials for subsequent rubber processing and improving the stability of product quality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; Figure 5 Appendix to this disclosure Figure 3 Enlarged view of part B in the middle section; In the diagram: 1. Outer shell; 2. Feeding hood; 3. Inner plate frame; 4. Crushing assembly; 4-1. Rotating shaft; 4-2. Ring cutting blade; 4-3. Cutting groove; 4-4. Baffle; 4-5. Sliding hopper; 4-6. Discharge port; 4-7. Cutting roller; 4-8. Top frame; 4-9. Movable frame; 4-10. Pelletizing blade; 4-11. Drive motor; 4-12. Eccentric shaft; 4-13. Transmission rod; 4-14. Knife groove; 5. Inlet assembly; 5-1. Inlet roller; 5-2. Transmission gear; 5-3. Transmission wheel. Detailed Implementation

[0016] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0017] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0019] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figures 1-5 As shown, it illustrates a raw material pulverizer for preparing rubber products according to an embodiment of the present disclosure, comprising: The outer casing 1 and the feeding cover 2 are mounted on the top of the outer casing 1; Import component 5, wherein the import component 5 is disposed in the outer casing 1; The inner plate frame 3 and the crushing component 4 are provided. The inner plate frame 3 is vertically fixed in the outer shell 1, and the crushing component 4 is disposed in the outer shell 1. The crushing assembly 4 includes a rotating shaft 4-1, which is rotatably connected to the outer casing 1 via a horizontal electric drive. Several ring-cutting blades 4-2 are mounted on the rotating shaft 4-1. Several cutting grooves 4-3 are formed on the side surface of the inner plate frame 3, and the ring-cutting blades 4-2 are all located within the cutting grooves 4-3. Several baffles 4-4 are provided on the side surface of the inner plate frame 3, and the baffles 4-4 correspond to the positions of the ring-cutting blades 4-2. A sliding hopper 4-5 is provided at the lower end of the side surface of the inner plate frame 3. A discharge port 4-6 is formed on the side surface of the outer casing 1, with one end of the sliding hopper 4-5 passing through the discharge port 4-6 and located externally. A cutting roller 4-7 is horizontally rotatably connected inside the outer casing 1, and the cutting roller 4-7 is powered by electricity. Driven to rotate, the cutting roller 4-7 is located in the sliding hopper 4-5. A top frame 4-8 is fixedly connected to the top of the sliding hopper 4-5. A movable frame 4-9 is vertically and slidably connected inside the top frame 4-8. Several pelletizing blades 4-10 are provided at the bottom of the movable frame 4-9. A drive motor 4-11 is installed on the top of the top frame 4-8. An eccentric shaft 4-12 is provided at the output end of the drive motor 4-11. A transmission rod 4-13 is rotatably connected to one end of the eccentric shaft 4-12. The lower end of the transmission rod 4-13 is rotatably connected to the surface of the movable frame 4-9 through a pin. Several knife grooves 4-14 are opened on the bottom surface of the sliding hopper 4-5. The knife grooves 4-14 correspond to the positions of the pelletizing blades 4-10.

[0023] In some examples, in order to achieve the gradual crushing of rubber raw materials from lumps to uniform granules and avoid uneven crushing or particle size deviation, a crushing component 4 is designed. This component includes a horizontally rotating rotating shaft 4-1 inside the outer shell 1 that drives several ring-cutting blades 4-2 to rotate synchronously. The cutting groove 4-3 on the side surface of the inner plate frame 3 provides the ring-cutting blades 4-2 with a space for movement. When the blades rotate, they can ring-cut the introduced lumpy raw materials into long strips. The baffle 4-4 on the side surface of the inner plate frame 3 corresponds to the position of the ring-cutting blades 4-2, which can not only prevent the raw materials from escaping to both sides during ring cutting, but also limit the raw materials, ensuring that the raw materials accurately contact the blades and improve the ring cutting efficiency.

[0024] The sliding hopper 4-5 at the lower end of the inner plate frame 3 can receive the long strip of raw material after ring cutting and guide it to move towards the discharge port 4-6. The horizontally rotating cutting roller 4-7 inside the sliding hopper 4-5 is driven by electricity to rotate, which can further cut the long strip of raw material into thin strips, laying the foundation for subsequent pelleting. The position design of the cutting roller 4-7 ensures that the raw material is not missed when moving in the sliding hopper 4-5, and avoids uncut raw material directly entering the pelleting stage.

[0025] The top frame 4-8 at the top of the sliding hopper 4-5 provides vertical sliding support for the movable frame 4-9. Several pelletizing blades 4-10 are set at the bottom of the movable frame 4-9 inside the top frame 4-8. The drive motor 4-11 drives the eccentric shaft 4-12 to rotate, and pushes the movable frame 4-9 to move vertically up and down along the top frame 4-8 through the transmission rod 4-13. This causes the pelletizing blades 4-10 to repeatedly insert into the knife grooves 4-14 on the bottom surface of the sliding hopper 4-5, cutting the thin strip-shaped raw material into uniform particles. The positions of the knife grooves 4-14 and the pelletizing blades 4-10 correspond to ensure that there is no deviation in pelletizing and that the particle size is consistent.

[0026] One end of the sliding hopper 4-5 extends to the outside through the discharge port 4-6, facilitating the direct discharge and collection of the crushed particles. The cooperation between the eccentric shaft 4-12 and the transmission rod 4-13 enables the efficient reciprocating motion of the movable frame 4-9, ensuring that the pelletizing speed matches the raw material conveying speed and avoiding raw material accumulation.

[0027] During operation, the raw material is circumcised by the ring-cutting blade 4-2, cut into strips by the strip-cutting roller 4-7, and then repeatedly granulated by the pelletizing blade 4-10 before finally being discharged from the sliding hopper 4-5. This three-stage crushing process ensures uniform particle size, and the coordinated operation of all components achieves fine crushing of the raw material, meeting the processing requirements for rubber products.

[0028] like Figures 1-5 As shown, this embodiment proposes that the inlet assembly 5 includes several pairs of inlet rollers 5-1, and the several pairs of inlet rollers 5-1 are horizontally rotatably connected inside the outer shell 1. Each pair of inlet rollers 5-1 is vertically downward distributed, and one of the inlet rollers 5-1 is driven to rotate by electricity. Each of the two pairs of inlet rollers 5-1 is provided with a transmission gear 5-2 at one end. One of the pair of inlet rollers 5-1 with the transmission gear 5-2 is provided with a transmission wheel 5-3. The transmission wheels 5-3 rotate through belt drive.

[0029] In some examples, in order to achieve stable and continuous feeding of rubber raw materials from the feeding hood 2 to the crushing component 4 and to avoid material jamming, slippage or interruption of feeding, an feeding component 5 is designed. This component includes several pairs of feeding rollers 5-1 that rotate horizontally inside the outer shell 1 and are vertically distributed downward to form a multi-layer feeding channel. Each pair of feeding rollers 5-1 can form a clamping force on the raw material from the upper and lower sides. Even when facing loose or irregular rubber raw materials, the clamping force can smoothly convey them downward, preventing the raw material from tilting upward or deviating during the feeding process, and ensuring that the raw material flows accurately to the subsequent crushing component 4. One of the inlet rollers 5-1 is driven by electricity to rotate, providing power for the inlet. The transmission gears 5-2 set at one end of the two pairs of inlet rollers 5-1 can realize the synchronous rotation of the same pair of rollers in opposite directions. When the drive roller rotates, the driven roller is driven to rotate in the opposite direction through the transmission gears 5-2, forming a clamping and conveying force on the raw material, thus improving the conveying stability.

[0030] A drive wheel 5-3 is provided in one of the pair of guide rollers 5-1 with a drive gear 5-2. The two pairs of guide rollers 5-1 are linked and driven by a belt, so that the multi-layer guide rollers 5-1 operate synchronously. This ensures that the raw materials are conveyed at the same speed in the multi-layer process and avoids the accumulation or stretching deformation of raw materials due to the difference in conveying speed between the upper and lower layers. The multi-layer inlet design is suitable for raw materials of different thicknesses. Even if the material thickness is uneven, it can be gradually clamped and conveyed by the multi-layer rollers. The combination of electric drive and gear and belt drive ensures stable operation of the inlet roller 5-1 and efficient power transmission, avoiding inlet interruption due to transmission failure.

[0031] During operation, the raw material falls from the feeding hood 2 into the inlet roller 5-1, and is synchronously conveyed downward to the crushing component 4 by multiple pairs of rollers. Multi-layer clamping ensures stable feeding, and linkage transmission ensures consistent speed. All components work together to complete the stable feeding of raw materials, meeting the raw material supply requirements of the crushing component 4.

[0032] For example, such as Figure 3 As shown, the bottom of the hopper 4-5 is inclined downwards.

[0033] In some examples, the downward-sloping bottom of the hopper 4-5 allows the raw material to be automatically guided towards the discharge port 4-6 by gravity, achieving smooth material transport without additional power. Compared to a horizontal bottom, the inclined design prevents the accumulation of long strips of material after ring cutting or thin strips after slicing within the hopper 4-5. This is especially beneficial for rubber materials with a certain degree of viscosity, reducing the probability of them sticking to the hopper wall and ensuring a continuous and stable flow of raw material to the cutting roller 4-7 and the pelletizing blade 4-10, thus guaranteeing the continuity of the three-stage crushing process of the crushing component 4.

[0034] In actual use: Rubber raw material is fed into the outer shell 1 through the feeding hood 2. The multiple pairs of feeding rollers 5-1 of the feeding component 5 are activated. The electrically driven feeding rollers 5-1 rotate in the opposite direction through the transmission gear 5-2 and are linked by the belt of the transmission wheel 5-3, smoothly conveying the raw material downward from the top and bottom. After the raw material enters the crushing component 4, the horizontal electric drive drives the rotating shaft 4-1 and the ring-cutting blade 4-2 to rotate. The blade cuts the raw material into long strips in the cutting groove 4-3, and the baffle 4-4 prevents the raw material from deviating. The long strip of raw material falls into the inclined sliding hopper 4-5, where the electrically driven cutting roller 4-7 cuts it into thin strips. Then, the drive motor 4-11 drives the eccentric shaft 4-12 to rotate, which pushes the movable frame 4-9 to slide up and down along the top frame 4-8 through the transmission rod 4-13. The pelletizing blade 4-10 repeatedly inserts into the cutting groove 4-14 to cut the thin strip of raw material into uniform particles. Finally, the particles are discharged from the discharge port 4-6 along the sliding hopper 4-5. The entire process realizes automatic raw material introduction, three-stage crushing and uniform discharge without manual intervention.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A raw material pulverizer for preparing rubber products, characterized in that, include: The outer casing (1) and the feeding hood (2) are mounted on the top of the outer casing (1); Import component (5), said import component (5) is disposed in the housing (1); The inner plate frame (3) and the crushing assembly (4) are provided in the outer shell (1), wherein the inner plate frame (3) is vertically fixed in the outer shell (1) and the crushing assembly (4) is disposed in the outer shell (1); The crushing component (4) includes a rotating shaft (4-1), which is rotatably connected to the outer casing (1) by a horizontal electric drive. A plurality of ring-cutting blades (4-2) are provided on the rotating shaft (4-1). A plurality of cutting grooves (4-3) are provided on the side surface of the inner plate frame (3). The ring-cutting blades (4-2) are all located in the cutting grooves (4-3). A plurality of baffles (4-4) are provided on the side surface of the inner plate frame (3). The baffles (4-4) are positioned corresponding to the ring-cutting blades (4-2).

2. The raw material pulverizer for preparing rubber products according to claim 1, characterized in that, The inner plate frame (3) has a sliding hopper (4-5) at the lower end of its side surface, and the outer shell (1) has a discharge port (4-6) on its side surface. One end of the sliding hopper (4-5) passes through the discharge port (4-6) and is located on the outside. The outer shell (1) is horizontally rotatably connected to a cutting roller (4-7).

3. The raw material pulverizer for preparing rubber products according to claim 2, characterized in that, The cutting roller (4-7) is driven to rotate by electricity. The cutting roller (4-7) is located in the sliding hopper (4-5). A top frame (4-8) is fixedly connected to the top of the sliding hopper (4-5). A movable frame (4-9) is vertically and slidably connected inside the top frame (4-8).

4. The raw material pulverizer for preparing rubber products according to claim 3, characterized in that, The bottom of the movable frame (4-9) is provided with several pelletizing blades (4-10), and the top frame (4-8) is equipped with a drive motor (4-11). The output end of the drive motor (4-11) is provided with an eccentric shaft (4-12), and one end of the eccentric shaft (4-12) is rotatably connected to a transmission rod (4-13).

5. The raw material pulverizer for preparing rubber products according to claim 4, characterized in that, The lower end of the transmission rod (4-13) is rotatably connected to the surface of the movable frame (4-9) via a pin. The bottom surface of the sliding hopper (4-5) is provided with a number of knife grooves (4-14), and the knife grooves (4-14) correspond to the positions of the pelletizing blades (4-10).

6. The raw material pulverizer for preparing rubber products according to claim 1, characterized in that, The inlet assembly (5) includes several pairs of inlet rollers (5-1), which are horizontally rotatably connected inside the housing (1). Each pair of inlet rollers (5-1) is vertically downward distributed, and one of the inlet rollers (5-1) is electrically driven to rotate.

7. A raw material pulverizer for preparing rubber products according to claim 6, characterized in that, Each of the two pairs of guide rollers (5-1) is provided with a transmission gear (5-2) at one end. One of the pair of guide rollers (5-1) with the transmission gear (5-2) is provided with a transmission wheel (5-3). The transmission wheels (5-3) rotate through belt drive.

8. The raw material pulverizer for preparing rubber products according to claim 2, characterized in that, The bottom of the hopper (4-5) is inclined downward.

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