Rubber production and processing mixer
By designing a rubber mixing mill with separation and scraping/mixing components, the problem of rubber adhesion to the inner wall of the mixing mill was solved, ensuring the quality stability and ease of cleaning of the mixed rubber.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HECONG NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-07
AI Technical Summary
Rubber adhering to the inner wall of the internal mixer leads to unstable quality of the mixed rubber, and the residue affects the quality of the new material and is difficult to clean.
Design a rubber production and processing internal mixer, including a separation component, a scraping and stirring component, and a sleeve feeding component. The separation component separates the left and right shells, and the scraping and stirring component scrapes off the adhering rubber. A sealing component is used to prevent rubber from accumulating.
This allows for convenient unloading of rubber, avoids accumulation in the mixing chamber, and ensures product quality stability and ease of cleaning.
Smart Images

Figure CN224465002U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rubber production technology, and specifically relates to a rubber mixing machine for rubber production and processing. Background Technology
[0002] In the rubber production and processing industry, the internal mixer is the core equipment for achieving uniform mixing of raw rubber and various compounding agents. Its performance directly determines the quality and production efficiency of the rubber compound. This equipment mainly consists of core components such as the mixing chamber, rotor, pressure roller, and unloading mechanism. During operation, raw rubber, carbon black, vulcanizing agents, and other compounding agents are fed into the mixing chamber. Subsequently, the rotor rotates at high speed, forcefully mixing the materials through extrusion, shearing, and stirring. During this process, the intense mechanical action and material friction generate a large amount of heat, promoting the gradual plasticization of the materials and achieving thorough and uniform mixing of all components. After mixing is complete, the unloading mechanism opens the discharge port at the bottom of the mixing chamber, and the mixed rubber compound is discharged under gravity.
[0003] Rubber materials are inherently sticky, and this stickiness is further enhanced under the high temperature and pressure conditions of the mixing process. This causes some of the mixed rubber to adhere to the inner walls (including the side walls and top) of the mixing chamber, making it impossible for it to fall smoothly during unloading by gravity alone. At the same time, the residual rubber will continue to accumulate in the mixing chamber. As the number of production batches increases, these residues may age, cross-link, or deteriorate. When mixing again, the deteriorated residues will be mixed into the new material, damaging the quality uniformity and performance stability of the new batch of mixed rubber, ultimately resulting in a decrease in the product qualification rate. Utility Model Content
[0004] To address the problem that rubber after mixing tends to adhere to the inner wall of the internal mixer, this invention proposes an internal mixer for rubber production and processing to overcome the aforementioned technical problems existing in the prior art.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a rubber production and processing internal mixer, including a support frame, a separation component is provided inside the support frame, a left shell and a right shell are provided at the separation end of the separation component, a sealing component is provided between the left shell and the right shell, a scraping and stirring component is provided inside the left shell and the right shell, and a feeding component is provided at the top of the left shell and the right shell.
[0007] The separation component is used to separate the left and right shells. The scraping and stirring components inside the left and right shells are used to scrape and push the rubber after it has been mixed, so that the rubber can fall directly between the left and right shells.
[0008] Furthermore, the separation assembly includes a bidirectional screw, which is rotatably connected to a bracket. Two separation frames are threadedly connected to the outer surface of the bidirectional screw. The left and right shells are fixedly installed inside the corresponding separation frames. A support rod is fixedly connected inside the bracket. Both separation frames are movably connected to the support rod. A separation motor is fixedly installed on the outer side of the bracket. The output end of the separation motor is fixedly connected to the bidirectional screw.
[0009] Furthermore, support legs are fixedly installed on both sides of the left and right shells, and casters are fixedly installed at the bottom of the support legs. A material collection hopper is fixedly connected inside the bracket.
[0010] Furthermore, the sealing assembly includes a sealing groove, which is formed on one side of the left shell. A sealing frame is movably connected inside the sealing groove, and the sealing frame is fixedly connected to the right shell. A filling frame is provided inside the sealing groove.
[0011] Furthermore, the inner wall of the sealing groove is provided with several mounting cavities. A guide rod is fixedly connected inside the mounting cavity. A pull plate is movably connected to the outer surface of the guide rod. The pull plate is fixedly connected to the filling frame. A pull spring is fixedly connected between one side of the pull plate and the inner wall of the mounting cavity.
[0012] Furthermore, the scraping and stirring assembly includes a rotating shaft, which is provided inside both the left and right shells. Several stirring blades are fixedly connected to the outer surface of the rotating shaft, and a connecting rod is fixedly connected to the outer surface of the rotating shaft. A scraper is fixedly connected to the top end of the connecting rod. The scrapers on the two rotating shafts are staggered. Stirring motors are fixedly installed on the outer sides of both the left and right shells, and the output ends of the two stirring motors are fixedly connected to the corresponding rotating shafts.
[0013] Furthermore, the feeding assembly includes a feeding trough, which is opened on the top of the left and right shells. A limiting frame is fixedly connected to the top of the left and right shells corresponding to the feeding trough. A lifting hydraulic cylinder is fixedly installed on the top of the separating frame. A lifting plate is fixedly connected to the lifting end of the lifting hydraulic cylinder. A feeding hopper is fixedly connected to one end of the lifting plate. A limiting groove is opened at the bottom of the feeding hopper. The limiting groove is sleeved on the outside of the limiting frame.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model allows the left and right shells, which are joined together, to separate through a separation component. Simultaneously, during unloading, the scraping end of the scraping and mixing component scrapes and pushes the rubber adhering to the inner walls of the left and right shells, allowing the mixed rubber to fall between them. The separable structure of the left and right shells, combined with the operation of the scraping end, makes subsequent cleaning of the left and right shells and the scraping end itself, as well as any residual rubber, much more convenient. This design effectively eliminates the possibility of rubber accumulating in the mixing chamber, thus ensuring the quality stability of the subsequent products.
[0016] 2. This utility model uses a separation motor and a bidirectional screw to drive two separation frames to move, thereby causing the left and right shells to separate under the action of the separation frames. At the same time, as the sealing frame moves out of the sealing groove, the pull spring pulls the filling frame through the pull plate, so that the filling frame can automatically move to the opening of the sealing groove. This setting prevents the rubber from accumulating inside the sealing groove during unloading, thus allowing the subsequent sealing frame to move normally into the sealing groove.
[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 utility model embodiments, 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 the 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 external outline structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the bracket of this utility model;
[0021] Figure 3 This is a schematic diagram of the support leg structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the left and right shell separation structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the internal structure of the right shell of this utility model;
[0024] Figure 6 This is a schematic diagram of the internal structure of the left shell of this utility model;
[0025] Figure 7For the present utility model Figure 6 Enlarged structural diagram at point A in the middle;
[0026] Figure 8 This is a schematic diagram of the stirring plate structure of this utility model;
[0027] Figure 9 This is a schematic diagram of the feed hopper structure of this utility model.
[0028] The attached diagram lists the components represented by each number as follows:
[0029] 1. Bracket; 2. Separation assembly; 201. Bidirectional screw; 202. Separation frame; 203. Support rod; 204. Separation motor; 205. Support leg; 206. Caster wheel; 207. Converging hopper; 3. Left shell; 4. Right shell; 5. Sealing assembly; 501. Sealing groove; 502. Sealing frame; 503. Filling frame; 504. Mounting cavity; 505. Guide rod; 506. Pulling plate; 507. Pulling spring; 6. Scraping and mixing assembly; 601. Rotating shaft; 602. Mixing blade; 603. Connecting rod; 604. Scraper; 605. Mixing motor; 7. Sleeve-connecting feeding assembly; 701. Feed chute; 702. Limiting frame; 703. Lifting hydraulic cylinder; 704. Lifting plate; 705. Feed hopper; 706. Limiting groove. Detailed Implementation
[0030] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0031] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the 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. Therefore, they should not be construed as limitations on the utility model.
[0032] Please see Figures 1-7 As shown, this utility model is a rubber production and processing internal mixer, including a support 1. The support 1 is provided with a separation component 2. The separation end of the separation component 2 is provided with a left shell 3 and a right shell 4. A sealing component 5 is provided between the left shell 3 and the right shell 4. A scraping and stirring component 6 is provided inside the left shell 3 and the right shell 4. A feeding component 7 is provided at the top of the left shell 3 and the right shell 4.
[0033] The separation component 2 is used to separate the left shell 3 and the right shell 4. The scraping and stirring component 6 inside the left shell 3 and the right shell 4 is used to scrape and push the rubber that has been mixed, so that the rubber can fall directly between the left shell 3 and the right shell 4.
[0034] After the rubber is mixed, the separation component 2 is driven to move the left shell 3 and right shell 4 to the left and right sides respectively, causing the left shell 3 and right shell 4 to separate. Then the scraping and stirring component 6 rotates, so that the scraping end can scrape and push the rubber adhering to the inner wall of the left shell 3 and right shell 4. At the same time, the pushed rubber can fall directly between the left shell 3 and right shell 4.
[0035] The separation component 2 allows the left shell 3 and right shell 4, which are joined together, to separate. Simultaneously, during unloading, the scraping end of the scraping and mixing component 6 can scrape and push the rubber adhering to the inner walls of the left shell 3 and right shell 4, allowing the mixed rubber to fall between the left shell 3 and right shell 4. The separable structure of the left and right shells, combined with the operation of the scraping end, makes subsequent cleaning of the left shell 3, right shell 4, and residual rubber on the scraping end itself more convenient. This design effectively eliminates the possibility of rubber accumulating in the mixing chamber, thereby ensuring the quality stability of the subsequent products.
[0036] In one embodiment, the separation component 2 includes a bidirectional screw 201, which is rotatably connected to the bracket 1. Two separation frames 202 are threadedly connected to the outer surface of the bidirectional screw 201. The left shell 3 and the right shell 4 are fixedly installed inside the corresponding separation frames 202. A support rod 203 is fixedly connected inside the bracket 1. Both separation frames 202 are movably connected to the support rod 203. A separation motor 204 is fixedly installed on the outer side of the bracket 1. The output end of the separation motor 204 is fixedly connected to the bidirectional screw 201.
[0037] The separation motor 204 drives the bidirectional screw 201 to rotate inside the bracket 1. At this time, the two separation frames 202 move simultaneously to the sides or the middle of the bracket 1 under the drive of the bidirectional screw 201 and the guidance of the support rod 203, so that the left shell 3 and the right shell 4 can be separated or closed under the drive of the corresponding separation frame 202.
[0038] In one embodiment, for the left shell 3, support legs 205 are fixedly installed on both sides of the left shell 3 and the right shell 4, and casters 206 are fixedly installed at the bottom of the support legs 205. A material collection hopper 207 is fixedly connected inside the bracket 1.
[0039] When the two separating frames 202 move the left shell 3 and the right shell 4, several casters 206 can roll on the ground under the drive of the support legs 205. This allows the support legs 205 to continuously support the corresponding left shell 3 and right shell 4 through the casters 206, ensuring the stability of the left shell 3 and right shell 4 during movement. After the left shell 3 and right shell 4 separate, the rubber inside them can fall directly into the collecting hopper 207. The collecting hopper 207 allows the rubber falling from the left shell 3 and right shell 4 to be collected together, making it more convenient to receive the materials at Jinxin Hotel.
[0040] In one embodiment, the sealing assembly 5 includes a sealing groove 501, which is formed on one side of the left shell 3. A sealing frame 502 is movably connected inside the sealing groove 501, and the sealing frame 502 is fixedly connected to the right shell 4. A filling frame 503 is provided inside the sealing groove 501.
[0041] When the left shell 3 and the right shell 4 are joined together, the sealing frame 502 can move into the sealing groove 501. This setting ensures the sealing performance of the connection between the left shell 3 and the right shell 4. When the left shell 3 and the right shell 4 are separated, the sealing frame 502 can move out of the sealing groove 501. At the same time, the filling frame 503 can move outward to a certain extent and block the opening of the sealing groove 501. This setting prevents the rubber from accumulating inside the sealing groove 501 during unloading, so that the sealing frame 502 can move normally into the sealing groove 501.
[0042] In one embodiment, for the sealing groove 501, the inner wall of the sealing groove 501 is provided with a plurality of mounting cavities 504. A guide rod 505 is fixedly connected inside the mounting cavity 504. A pull plate 506 is movably connected to the outer surface of the guide rod 505. The pull plate 506 is fixedly connected to the filling frame 503. A pull spring 507 is fixedly connected between one side of the pull plate 506 and the inner wall of the mounting cavity 504.
[0043] When the sealing frame 502 moves into the sealing groove 501, the sealing frame 502 can push the filling frame 503. At this time, the filling frame 503 can pull the pulling spring 507 through the pulling plate 506. When the sealing frame 502 moves out of the sealing groove 501, the sealing frame 502 no longer squeezes the filling frame 503. At this time, the pulling spring 507 can pull the filling frame 503 through the pulling plate 506, so that the filling frame 503 can automatically move to the opening of the sealing groove 501.
[0044] In one embodiment, the scraping and stirring assembly 6 includes a rotating shaft 601, which is disposed inside both the left shell 3 and the right shell 4. A plurality of stirring blades 602 are fixedly connected to the outer surface of the rotating shaft 601, and a connecting rod 603 is fixedly connected to the outer surface of the rotating shaft 601. A scraper 604 is fixedly connected to the top end of the connecting rod 603. The scrapers 604 disposed on the two rotating shafts 601 are staggered. A stirring motor 605 is fixedly installed on the outer side of both the left shell 3 and the right shell 4. The output ends of the two stirring motors 605 are fixedly connected to the corresponding rotating shafts 601.
[0045] The stirring motor 605 drives the rotating shaft 601, which in turn drives the corresponding stirring blades 602 to rotate. At this time, the stirring blades 602 on the two rotating shafts 601 work together to stir the rubber and thus complete the mixing of the rubber. During unloading, the scraper 604, driven by the rotating shaft 601, can scrape off and push the rubber on the inner wall of the shell. When the rubber is pushed to the opening of the shell, it can fall directly into the inside of the collecting hopper 207. The two scrapers 604 are staggered so that when the two rotating shafts 601 drive the corresponding scrapers 604 to rotate through the connecting rod 603, the two scrapers 604 will not collide.
[0046] In one embodiment, for the aforementioned socket feeding assembly 7, the socket feeding assembly 7 includes a feeding groove 701, which is opened on the top of the left shell 3 and the right shell 4. The top of the left shell 3 and the right shell 4 are fixedly connected to the feeding groove 701 with a limiting frame 702. A lifting hydraulic cylinder 703 is fixedly installed on the top of the separating frame 202. A lifting plate 704 is fixedly connected to the lifting end of the lifting hydraulic cylinder 703. A feeding hopper 705 is fixedly connected to one end of the lifting plate 704. A limiting groove 706 is opened at the bottom of the feeding hopper 705. The limiting groove 706 is sleeved on the outside of the limiting frame 702.
[0047] When the left shell 3 and the right shell 4 are closed together, the lifting hydraulic cylinder 703 is driven. At this time, the lifting hydraulic cylinder 703 drives the feed hopper 705 to move downward through the lifting plate 704, so that the limiting groove 706 can be directly fitted onto the outside of the limiting frame 702. The above settings further improve the firmness of the connection between the closed left shell 3 and the right shell 4.
[0048] Through the above technical solution, 1. The separation component 2 allows the closed left shell 3 and right shell 4 to separate. Simultaneously, during unloading, the scraping end of the scraping and mixing component 6 scrapes and pushes the rubber adhering to the inner walls of the left shell 3 and right shell 4, allowing the mixed rubber to fall between the left shell 3 and right shell 4. The separable structure of the left and right shells, combined with the operation of the scraping end, makes subsequent cleaning of the left shell 3, right shell 4, and residual rubber on the scraping end itself extremely convenient. This design effectively eliminates the possibility of rubber accumulation in the mixing chamber, thus ensuring the quality stability of the subsequent products; 2. Through separation Motor 204 and bidirectional screw 201 drive two separating frames 202 to move, thereby causing the left shell 3 and right shell 4 to separate under the action of the separating frames 202. At the same time, when the sealing frame 502 moves out of the sealing groove 501, as the sealing frame 502 moves continuously, the pull spring 507 can pull the filling frame 503 through the pull plate 506, so that the filling frame 503 can automatically move to the groove opening of the sealing groove 501. This setting ensures that the rubber will not accumulate inside the sealing groove 501 during unloading, so that the sealing frame 502 can move normally into the sealing groove 501.
[0049] 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 utility model. 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.
[0050] The preferred embodiments of the utility model disclosed above are merely illustrative of the 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 the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A rubber internal mixer for rubber production and processing, comprising a support frame (1), characterized in that, The bracket (1) is provided with a separation component (2) inside. The separation end of the separation component (2) is provided with a left shell (3) and a right shell (4). A sealing component (5) is provided between the left shell (3) and the right shell (4). A scraping and stirring component (6) is provided inside both the left shell (3) and the right shell (4). A feeding component (7) is provided on the top of the left shell (3) and the right shell (4). The separation component (2) is used to separate the left shell (3) and the right shell (4). The scraping and stirring component (6) inside the left shell (3) and the right shell (4) is used to scrape and push the rubber after it has been mixed, so that the rubber can fall directly between the left shell (3) and the right shell (4).
2. The internal mixer for rubber production and processing according to claim 1, characterized in that, The separation assembly (2) includes a bidirectional screw (201), which is rotatably connected to the bracket (1). Two separation frames (202) are threadedly connected to the outer surface of the bidirectional screw (201). The left shell (3) and the right shell (4) are fixedly installed inside the corresponding separation frames (202). A support rod (203) is fixedly connected inside the bracket (1). Both separation frames (202) are movably connected to the support rod (203). A separation motor (204) is fixedly installed on the outer side of the bracket (1). The output end of the separation motor (204) is fixedly connected to the bidirectional screw (201).
3. The internal mixer for rubber production and processing according to claim 2, characterized in that, Support legs (205) are fixedly installed on both sides of the left shell (3) and the right shell (4). Universal wheels (206) are fixedly installed at the bottom of the support legs (205). A material collection hopper (207) is fixedly connected inside the bracket (1).
4. The internal mixer for rubber production and processing according to claim 1, characterized in that, The sealing assembly (5) includes a sealing groove (501), which is opened on one side of the left shell (3). A sealing frame (502) is movably connected inside the sealing groove (501). The sealing frame (502) is fixedly connected to the right shell (4). A filling frame (503) is provided inside the sealing groove (501).
5. The internal mixer for rubber production and processing according to claim 4, characterized in that, The inner wall of the sealing groove (501) is provided with a plurality of mounting cavities (504). A guide rod (505) is fixedly connected inside the mounting cavity (504). A pull plate (506) is movably connected to the outer surface of the guide rod (505). The pull plate (506) is fixedly connected to the filling frame (503). A pull spring (507) is fixedly connected between one side of the pull plate (506) and the inner wall of the mounting cavity (504).
6. The internal mixer for rubber production and processing according to claim 1, characterized in that, The scraping and stirring assembly (6) includes a rotating shaft (601), which is installed inside both the left shell (3) and the right shell (4). Several stirring blades (602) are fixedly connected to the outer surface of the rotating shaft (601), and a connecting rod (603) is fixedly connected to the outer surface of the rotating shaft (601). A scraper (604) is fixedly connected to the top of the connecting rod (603). The scrapers (604) on the two rotating shafts (601) are staggered. Stirring motors (605) are fixedly installed on the outer sides of both the left shell (3) and the right shell (4). The output ends of the two stirring motors (605) are fixedly connected to the corresponding rotating shafts (601).
7. The internal mixer for rubber production and processing according to claim 2, characterized in that, The feeding assembly (7) includes a feeding trough (701), which is located on the top of the left shell (3) and the right shell (4). The top of the left shell (3) and the right shell (4) are fixedly connected to a limiting frame (702) corresponding to the feeding trough (701). A lifting hydraulic cylinder (703) is fixedly installed on the top of the separating frame (202). A lifting plate (704) is fixedly connected to the lifting end of the lifting hydraulic cylinder (703). A feeding hopper (705) is fixedly connected to one end of the lifting plate (704). A limiting groove (706) is opened at the bottom of the feeding hopper (705). The limiting groove (706) is sleeved on the outside of the limiting frame (702).