A cutting device for a rubber mixing mill

Abstract

The present disclosure relates to the technical field of rubber product processing, and one embodiment of the present disclosure provides a rubber cutting device of a rubber mixing machine, which comprises an equipment frame and a plurality of supporting rollers, the supporting rollers are rotationally connected inside the equipment frame, an inner frame is fixed in the equipment frame, a conveying cutting angle assembly is arranged on the equipment frame, and a collecting assembly is arranged in the inner frame, the conveying cutting assembly comprises a cross frame, the cross frame is connected to the equipment frame through a vertical linear drive, a top frame is arranged on the top of the cross frame, a pair of air cylinders are arranged on the top frame, a rubber cutting knife rack is connected to the output end of the air cylinders, a long hole is formed in the surface of the cross frame, and the rubber cutting knife rack is slidably sleeved in the long hole. Through the above technical scheme, the technical problem that in the prior art, in the continuous cutting process, the rubber blocks are easily adhered to each other due to their own adhesion, or are randomly scattered on the conveying belt, and it is difficult to form an orderly arrangement, which leads to the need for frequent arrangement when collecting manually, thereby increasing the labor intensity and seriously affecting the collection efficiency is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of rubber product processing, and more specifically, to a rubber cutting device for a compounded rubber internal mixer. Background Technology

[0002] In the rubber product manufacturing industry, compounded rubber is the basic raw material for products such as tires, seals, and shock absorbers, and its quality directly determines the performance of the final product. The internal mixer, as the core equipment for compounded rubber preparation, mixes and plasticizes rubber and compounding agents to form a homogeneous compounded rubber. The rubber cutting device is responsible for cutting the mixed strips of compounded rubber into rubber blocks of specific specifications, facilitating subsequent processing.

[0003] Currently, the rubber cutting device in internal mixers for compounded rubber has significant drawbacks, with the problem of inconvenient collection being particularly prominent due to continuous cutting. Traditional rubber cutting devices mostly employ a fixed blade structure. During continuous cutting, rubber blocks tend to stick together due to their own adhesiveness or scatter randomly on the conveyor belt, making it difficult to form an orderly arrangement. This necessitates frequent manual sorting during collection, which not only increases labor intensity but also severely impacts collection efficiency, failing to match the continuous production rhythm of the internal mixer.

[0004] Furthermore, scattered rubber lumps can accumulate in the conveying area. If not cleaned promptly, this can affect the normal operation of the rubber cutting device, and even cause equipment shutdown due to blockage. In large-scale production scenarios, this drawback significantly prolongs the production cycle, reduces output per unit time, and increases the quality risks caused by rubber lump contamination and deformation. Therefore, developing a high-efficiency rubber cutting device adapted to the internal mixer of compounded rubber has become an urgent need to improve the efficiency and stability of rubber production, addressing the inconvenience of collection during continuous rubber cutting. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a rubber cutting device for a rubber mixing mill, which solves the technical problem that in the prior art, during continuous cutting, rubber blocks tend to stick together due to their own stickiness or are randomly scattered on the conveyor belt, making it difficult to form an orderly arrangement. This results in frequent sorting during manual collection, which not only increases labor intensity but also seriously affects collection efficiency.

[0006] According to one aspect, at least one embodiment of this disclosure provides a rubber compound cutting device for a rubber internal mixer, comprising: The equipment frame and several support rollers, all of which are rotatably connected inside the equipment frame; The inner frame and the conveying and cutting assembly are provided, wherein the inner frame is fixed in the equipment frame and the conveying and cutting assembly is disposed on the equipment frame; A collection component, wherein the collection component is disposed in the inner frame; The conveying and cutting assembly includes a cross frame, which is connected to the equipment frame via a vertical linear drive. A top frame is provided on the top of the cross frame, and a pair of cylinders are provided on the top frame. The output end of the cylinders is connected to a cutting blade holder. An elongated hole is provided on the surface of the cross frame, and the cutting blade holder is slidably fitted into the inside of the elongated hole.

[0007] As a further technical solution, the cross frame is equipped with several movable columns, each with a pressure plate at its lower end and a spring on it. The pressure plate has scraping holes on its surface, which correspond to the position of the rubber cutting knife holder.

[0008] As a further technical solution, the collection component includes a mounting cavity, which is opened inside the inner frame. The bottom of the inner frame has a pair of notches, and a collection box is placed inside the mounting cavity. The collection box is located at the bottom of the cutting knife holder.

[0009] As a further technical solution, the top of the inner frame is provided with a drop opening, and the bottom of the collection box is provided with four opposite corners with casters located inside the opening. The outer surface of the collection box is provided with a pair of handles.

[0010] As a further technical solution, a pressure roller is provided on the outer side of the cross frame, and one of the support rollers corresponding to the position of the pressure roller is rotated by electric power.

[0011] As a further technical solution, one end of the pressure plate is bent upwards, and the bent part of the pressure plate has an arc-shaped transition structure.

[0012] As a further technical solution, the lower end face of the moving wheel is at the same plane height as the bottom surface of the equipment frame.

[0013] As a further technical solution, the size of the inner opening of the scraping hole is the same as the thickness of the rubber cutting knife holder.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the conveying and cutting assembly solves the problems of adhesive adhesion and cutting deviation through a linked cutting design. The pressure plate elastically presses the adhesive to prevent slippage, the cutting blade holder precisely cuts along the elongated hole, and the scraper automatically cleans the adhesive to prevent accumulation. Cylinder drive enables rapid reciprocating cutting, adapting to the continuous production rhythm of the internal mixer. The spring and movable column are matched to adhesives of different thicknesses, ensuring consistent cutting dimensions, reducing manual intervention, improving cutting efficiency and quality stability, and lowering the risk of equipment downtime due to adhesion. Attached Figure Description

[0015] 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.

[0016] 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; In the diagram: 1. Equipment frame; 2. Support roller; 3. Inner frame; 4. Conveying and cutting assembly; 4-1. Horizontal frame; 4-2. Top frame; 4-3. Cylinder; 4-4. Cutting blade holder; 4-5. Long hole; 4-6. Movable column; 4-7. Pressure plate; 4-8. Spring; 4-9. Scraping hole; 5. Collection assembly; 5-1. Mounting cavity; 5-2. Notch; 5-3. Collection box; 5-4. Drop outlet; 5-5. Moving wheel; 5-6. Handle; 6. Pressure roller. Detailed Implementation

[0017] 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.

[0018] 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."

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] like Figures 1-3 As shown, a rubber compound cutting device for a rubber mixing mill according to an embodiment of the present disclosure is illustrated, comprising: The equipment frame 1 and several support rollers 2 are rotatably connected inside the equipment frame 1. The inner frame 3 and the conveying and cutting assembly 4 are provided. The inner frame 3 is fixed in the equipment frame 1 and the conveying and cutting assembly is provided on the equipment frame 1. Collection component 5, which is disposed in the inner frame 3; The conveying and cutting assembly 4 includes a crossbeam 4-1, which is connected to the equipment frame 1 via a vertical linear drive. A top frame 4-2 is provided on the top of the crossbeam 4-1, and a pair of cylinders 4-3 are provided on the top frame 4-2. The output end of the cylinders 4-3 is connected to a cutting blade holder 4-4. An elongated hole 4-5 is provided on the surface of the crossbeam 4-1, and the cutting blade holder 4-4 is slidably fitted inside the elongated hole 4-5. Several movable columns 4-6 are movably fitted inside the crossbeam 4-1, and a pressure plate 4-7 is provided at the lower end of each movable column 4-6. A spring 4-8 is fitted on each movable column 4-6. A scraping hole 4-9 is provided on the surface of the pressure plate 4-7, and the scraping hole 4-9 corresponds to the position of the cutting blade holder 4-4.

[0024] In some examples, to achieve continuous and stable cutting of the compounded rubber, a conveying and cutting assembly 4 is designed. This assembly includes a crossbeam 4-1 on the equipment frame 1, driven by a vertical linear drive device (such as a hydraulic cylinder), which can be raised and lowered vertically to accommodate rubber compounds of different thicknesses. A top frame 4-2 is bolted to the top of the crossbeam 4-1, and a pair of cylinders 4-3 are horizontally and symmetrically mounted on the top frame 4-2. The output end is connected to the side of the cutting blade holder 4-4 via a flange. The cutting blade holder 4-4 is elongated, with a cutter mounted at the lower end. The blade slides and fits into an elongated hole 4-5 on the surface of the crossbeam 4-1. The elongated hole 4-5 provides guidance for the cutting blade holder 4-4, ensuring accurate cutting direction. The movable columns 4-6 inside the cross frame 4-1 are evenly distributed vertically and are movably fitted into the through holes of the cross frame 4-1 via sliding sleeves. The lower pressure plate 4-7 is horizontally positioned, corresponding vertically to the support roller 2 on the equipment frame 1. The spring 4-8 on the movable column 4-6 is fitted along the column body, with one end abutting the bottom of the cross frame 4-1 and the other end abutting the top of the pressure plate 4-7, always applying a downward elastic force to the pressure plate 4-7. The scraping hole 4-9 on the surface of the pressure plate 4-7 corresponds to the position of the rubber cutting knife holder 4-4, which can pass through the scraping hole 4-9 for cutting.

[0025] During operation, the compounded rubber is conveyed by the support roller 2 to the area below the pressure plate 4-7. The vertical linear drive device drives the cross frame 4-1 to descend, and the pressure plate 4-7 presses the surface of the rubber material under the elastic force of the spring 4-8 to achieve fixation. The cylinder 4-3 drives the rubber cutting blade holder 4-4 to slide along the elongated hole 4-5, and the cutter passes through the scraping hole 4-9 to cut the rubber material. After cutting, the rubber cutting blade holder 4-4 resets, and the inner wall of the scraping hole 4-9 can scrape off the rubber material adhering to the blade holder. The cross frame 4-1 rises, and the pressure plate 4-7 is released along with the rubber material, completing one cutting cycle. This process is repeated continuously to achieve continuous rubber cutting. The vertical linear drive unit adjusts the height of the crossbeam 4-1 to accommodate rubber compounds of varying thicknesses. The pressure plate 4-7, driven by spring 4-8, elastically presses the rubber compound, preventing damage from excessive tightness or slippage due to insufficient looseness, ensuring precise cutting. The elongated hole 4-5 guides the cutting blade holder 4-4, guaranteeing straight-line cutting. The reciprocating drive of the cylinder 4-3 enables rapid cutting of the cutting blade holder 4-4, improving efficiency. The scraping hole 4-9 automatically cleans adhesive residue from the blade holder, preventing material buildup that could affect cutting. This assembly, combining elastic clamping with linked cutting, achieves continuous and stable cutting of the compound, ensuring both cutting quality and efficiency.

[0026] like Figures 1-3As shown in the figure, the collection component 5 in this embodiment includes a mounting cavity 5-1, which is opened inside the inner frame 3. The bottom of the inner frame 3 has a pair of notches 5-2. A collection box 5-3 is placed inside the mounting cavity 5-1. The collection box 5-3 is located at the bottom of the rubber cutting knife holder 4-4. The top of the inner frame 3 has a drop opening 5-4. The bottom of the collection box 5-3 is provided with four opposite corners of a moving wheel 5-5, which is located inside the notch 5-2. The outer surface of the collection box 5-3 is provided with a pair of handles 5-6.

[0027] In some examples, to achieve efficient collection and transfer of cut adhesive, a collection component 5 is designed. This component includes a rectangular mounting cavity 5-1 within the inner frame 3, which communicates with the interior of the equipment frame 1. A drop opening 5-4 at the top is located directly below the cutting blade holder 4-4, corresponding to the cutting position, ensuring that the cut adhesive can fall directly into the mounting cavity 5-1 through the drop opening 5-4. A pair of notches 5-2 at the bottom of the mounting cavity 5-1 are opened along the length of the inner frame 3, communicating with the ground. A collection box 5-3, a rectangular box with an open top, is placed inside the mounting cavity 5-1, located below the drop opening 5-4. The box's dimensions are adapted to the mounting cavity 5-1 to catch the falling adhesive. The four corner casters 5-5 at the bottom of the collection box 5-3 are fixed by brackets, corresponding to the positions of the notches 5-2. After falling into the notches 5-2, they can contact the ground, facilitating the removal of the collection box 5-3 from the mounting cavity 5-1. A pair of handles 5-6 are symmetrically welded to the outer surface of the collection box 5-3, making it easy to push and pull manually.

[0028] During operation, the cut adhesive material falls from the drop outlet 5-4 into the collection box 5-3 for directional collection. After the collection box 5-3 is full, the operator holds the handle 5-6 and pushes the collection box 5-3 outward along the notch 5-2. The moving wheels 5-5 contact the ground to reduce friction, allowing the collection box 5-3 to be easily moved out of the mounting cavity 5-1 and transferred to the designated location. After emptying, the collection box 5-3 is pushed back into the mounting cavity 5-1 along the notch 5-2, the moving wheels 5-5 fall into the notch 5-2, and the box is positioned in the mounting cavity 5-1 to continue collecting adhesive material. The corresponding placement of the drop outlet 5-4 and the collection box 5-3 ensures that the adhesive material falls accurately into the box, preventing scattering. The mounting cavity 5-1 provides space for the collection box 5-3 and also forms a protective barrier to prevent splashing when the adhesive material falls. The cooperation between the moving wheels 5-5 and the notch 5-2 allows the collection box 5-3 to be smoothly moved between the mounting cavity 5-1 and the ground, reducing the intensity of manual handling. The handle 5-6 facilitates the operator's application of force, improving the ease of movement. This component, through the combination of directional guidance and convenient movement, achieves efficient collection and flexible transfer of cut adhesive material, improving production continuity.

[0029] For example, such as Figure 3As shown, a pressure roller 6 is provided on the outer side of the cross frame 4-1, and a support roller 2 corresponding to the position of the pressure roller 6 is driven to rotate by electricity.

[0030] In some examples, the pressure roller 6 on the outer side of the crossbeam 4-1 cooperates with the lower driven support roller 2 to clamp and convey the rubber compound. The support roller 2 is electrically driven to rotate, moving the rubber compound forward, while the pressure roller 6 applies pressure from above to ensure the rubber compound is conveyed flat. This clamping structure prevents the rubber compound from shifting during conveying, allowing it to accurately enter the cutting area. At the same time, the pressure roller 6 rotates with the rubber compound, reducing friction damage to the rubber surface and ensuring accurate subsequent cutting.

[0031] For example, such as Figure 3 As shown, one end of the pressure plate 4-7 is bent upwards, and the bent part of the pressure plate 4-7 has an arc-shaped transition structure.

[0032] In some examples, one end of the pressure plate 4-7 is bent upwards with an arc-shaped transition, facilitating the entry of the adhesive material beneath the pressure plate 4-7. The arc-shaped transition prevents the adhesive material from catching on the edge, allowing it to slide smoothly between the pressure plate 4-7 and the support roller 2. The bent structure also guides the direction of adhesive material delivery, preventing deviation, while simultaneously strengthening the end of the pressure plate 4-7, reducing deformation after long-term use, and ensuring stable clamping performance.

[0033] For example, such as Figure 2 As shown, the lower end face of the movable wheel 5-5 is at the same plane height as the bottom surface of the equipment frame 1.

[0034] In some examples, the lower end face of the movable wheel 5-5 is flush with the bottom surface of the equipment frame 1, allowing the collection box 5-3 to be placed stably after being moved out of the mounting cavity 5-1. When the collection box 5-3 is inside the mounting cavity 5-1, the movable wheel 5-5 falls into the notch 5-2, supporting the box; after being moved out, the movable wheel 5-5 contacts the ground, keeping the box level and preventing tilting that could cause the adhesive to spill. This height design makes the transfer of the collection box 5-3 smoother, facilitating manual pushing and pulling and subsequent handling of the adhesive.

[0035] For example, such as Figure 3 As shown, the inner opening size of the scraping hole 4-9 is the same as the thickness of the rubber cutting knife holder 4-4.

[0036] In some examples, the inner opening size of the scraping hole 4-9 is the same as the thickness of the cutting blade holder 4-4, allowing for a tight fit with the holder. When the cutting blade holder resets, the inner wall of the scraping hole 4-9 can thoroughly scrape away any adhesive adhering to the holder, preventing residual adhesive from accumulating and hardening. This tight fit ensures thorough scraping, preventing adhesive residue from affecting the accuracy of subsequent cuts and reducing the amount of manual cleaning required for the blade holder.

[0037] In actual use: The compounded rubber is conveyed by support roller 2 to the area below the crossbeam 4-1. The vertical linear drive causes the crossbeam 4-1 to descend, and the pressure plate 4-7 presses the rubber material under the action of spring 4-8. The pressure roller 6 assists in fixing and preventing deviation. Cylinder 4-3 drives the rubber cutting blade 4-4 to slide along the elongated hole 4-5, passing through the scraping hole 4-9 of the pressure plate 4-7 to complete the cutting. The scraping hole 4-9 simultaneously cleans the adhesive on the blade. The cut rubber blocks fall into the collection box 5-3 of the inner frame 3 through the drop outlet 5-4. When full, the collection box 5-3 is pulled by the handle 5-6, and the moving wheel 5-5 slides out along the notch 5-2 to transfer the rubber. After emptying, it is pushed back to its original position to continue collecting. The entire process achieves continuous rubber cutting and orderly collection without the need for frequent manual handling.

[0038] 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 rubber cutting device for a rubber compound internal mixer, characterized in that, include: The equipment frame (1) and several support rollers (2) are rotatably connected inside the equipment frame (1); The inner frame (3) and the conveying and cutting assembly (4) are fixed in the equipment frame (1) and the conveying and cutting assembly (4) is disposed on the equipment frame (1); Collection component (5), the collection component (5) being disposed in the inner frame (3); The conveying and cutting assembly (4) includes a crossbeam (4-1), which is connected to the equipment frame (1) by a vertical linear drive. A top frame (4-2) is provided on the top of the crossbeam (4-1), and a pair of cylinders (4-3) are provided on the top frame (4-2). The output end of the cylinders (4-3) is connected to a cutting blade holder (4-4). An elongated hole (4-5) is opened on the surface of the crossbeam (4-1), and the cutting blade holder (4-4) is slidably fitted into the elongated hole (4-5).

2. The rubber cutting device for a rubber compound mixer according to claim 1, characterized in that, The cross frame (4-1) is fitted with several movable columns (4-6). Each movable column (4-6) has a pressure plate (4-7) at its lower end. Each movable column (4-6) is fitted with a spring (4-8). The pressure plate (4-7) has a scraping hole (4-9) on its surface, which corresponds to the position of the rubber cutting knife holder (4-4).

3. The rubber cutting device for a rubber compound mixer according to claim 1, characterized in that, The collection component (5) includes a mounting cavity (5-1) which is opened inside the inner frame (3). The bottom of the inner frame (3) has a pair of notches (5-2). A collection box (5-3) is placed inside the mounting cavity (5-1). The collection box (5-3) is located at the bottom of the rubber cutting knife holder (4-4).

4. The rubber cutting device for a rubber compound mixer according to claim 3, characterized in that, The inner frame (3) has a drop opening (5-4) at the top, and the bottom of the collection box (5-3) is provided with four opposite corners with casters (5-5). The casters (5-5) are located inside the notch (5-2), and the outer surface of the collection box (5-3) is provided with a pair of handles (5-6).

5. The rubber cutting device for a rubber compound mixer according to claim 1, characterized in that, A pressure roller (6) is provided on the outside of the cross frame (4-1), and a support roller (2) corresponding to the position of the pressure roller (6) is driven to rotate by electricity.

6. The rubber cutting device for a rubber compound internal mixer according to claim 2, characterized in that, One end of the pressure plate (4-7) is bent upwards, and the bent part of the pressure plate (4-7) has an arc-shaped transition structure.

7. The rubber cutting device for a rubber compound internal mixer according to claim 4, characterized in that, The lower end face of the moving wheel (5-5) is at the same plane height as the bottom surface of the equipment frame (1).

8. A rubber cutting device for a rubber compound mixer according to claim 2, characterized in that, The opening size of the scraping hole (4-9) is the same as the thickness of the rubber cutting knife holder (4-4).

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