Rubber mill with anti-spillage

Abstract

This utility model relates to the technical field of rubber mixing mills. It provides a rubber mixing mill with anti-overflow features, including a sealed mixing mill with a feed inlet at the top. It also includes a weighing hopper, a weighing assembly, and a baffle plate. The weighing hopper is mounted on the side of the sealed mixing mill via a height adjustment assembly. The weighing assembly is mounted on the height adjustment assembly and is used to pour material from the weighing hopper. The baffle plate is slidably installed inside the weighing hopper via a vertical drive assembly to block material from being poured into the hopper. This utility model provides an anti-overflow rubber mixing mill that, by utilizing the weighing hopper, weighing assembly, and baffle plate, solves the cumbersome technical problem in existing technologies where, to prevent overflow during mixing, the particles need to be weighed to avoid exceeding the volume of the mixing chamber.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber mixing machines, specifically to a rubber mixing machine that prevents material spillage. Background Technology

[0002] Rubber mixing mills are the core equipment in rubber product manufacturing. Through mechanical shearing, extrusion, mixing, and heat, they uniformly blend various raw materials such as raw rubber, vulcanizing agents, and reinforcing agents to produce compound rubber with specific physical properties, laying the foundation for subsequent vulcanization and molding.

[0003] Rubber mixing mills are divided into open-type and closed-type mills. Closed-type mills can effectively isolate dust and impurities in the air and prevent light compounding agents in the rubber compound from volatilizing or flying away due to high temperature. When pouring rubber granules into the mixing mill, the workers usually hold a container to scoop up the granules and then pour them out. However, the amount of material fed should generally not exceed 80% of the effective volume of the mixing chamber. If too much material is poured out, overflow will occur in the subsequent mixing process. Therefore, when pouring the material, the workers need to weigh the scooped-up granules before pouring them out, which is quite troublesome. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this utility model provide a rubber mixing mill with anti-overflow function, which solves the technical problem in the prior art that when pouring materials, it is necessary to weigh the particles to avoid exceeding the volume of the mixing chamber in order to prevent overflow during rubber mixing, which is quite troublesome.

[0005] According to one aspect, at least one embodiment of the present invention provides a rubber mixing mill for preventing overflow, including a sealed mixing mill. The sealed mixing mill has a feed inlet at its top and also includes a discharge weighing hopper, a discharge assembly, and a baffle plate. The discharge weighing hopper is disposed on the side of the sealed mixing mill via a height adjustment assembly. The discharge assembly is disposed on the height adjustment assembly and is used to discharge the material in the discharge weighing hopper. The baffle plate is slidably installed inside the discharge weighing hopper via a vertical drive assembly and is used to block the material discharged into the discharge weighing hopper.

[0006] Furthermore, the height adjustment assembly includes a support cover, a reciprocating screw, and a first motor. The support cover is fixedly installed on the side of the sealed rubber mixing mill. The reciprocating screw is rotatably installed inside the support cover, and a matching crescent-shaped slider is installed on the reciprocating screw. The first motor is installed on the support cover, and the output end of the first motor is coaxially connected to the reciprocating screw.

[0007] Furthermore, the material pouring assembly includes a connecting frame, a rotating shaft, a second motor, and a support assembly. The connecting frame is U-shaped and is fixedly installed on the side of the crescent-shaped slider. The rotating shaft is rotatably installed on both sides of the connecting frame, and the material pouring and weighing hopper is fixedly installed between the two rotating shafts. The second motor is installed on the side of the connecting frame, and the output end of the second motor is coaxially connected to one of the rotating shafts. The support assembly is installed on the sealed rubber mixing mill and is used to support the material pouring and weighing hopper when the material is poured into it.

[0008] Furthermore, the support assembly includes support rods and support blocks. The support rods are fixedly installed on both sides of the material weighing hopper, and two support blocks are fixedly installed on the top of the sealed rubber mixing mill.

[0009] Furthermore, the vertical drive assembly includes a lifting rod and a fixing rod. There are two lifting rods, which are U-shaped. One end of each of the two lifting rods is fixedly installed at the bottom of the baffle plate. The fixing rod is fixedly installed between the two lifting rods, and a handle is fixedly installed on the side of the fixing rod.

[0010] Furthermore, the top of the support block is provided with a groove, the bottom end of the support rod is adapted to the groove, and the bottom end of the support rod and the groove are located in the same vertical position.

[0011] Furthermore, the top of the material weighing hopper is provided with a placement groove, and the bottom end of the fixing rod is adapted to the placement groove.

[0012] Furthermore, the length and width of the discharge weighing hopper are smaller than the length and width of the feed inlet of the sealed rubber mixing mill.

[0013] The beneficial effects of this utility model are as follows: In this invention, when material particles are poured into the sealed rubber mixing mill, the baffle plate is first moved into the weighing hopper by the vertical drive component, forming a cavity area inside the weighing hopper. At this time, the operator can pour the material into the cavity of the weighing hopper. When the cavity is full, the volume of the material is 80% of the mixing chamber, which allows the operator to have a direct understanding of the volume of the poured material. After pouring, the material particles in the weighing hopper can be poured into the interior of the sealed rubber mixing mill through the feed port by the cooperation between the pouring component and the height adjustment component for melting. Attached Figure Description

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

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the height adjustment component of this utility model; Figure 3 This is a schematic diagram of the structure of the material pouring component and the material pouring weighing hopper of this utility model. Figure 4 This is a schematic diagram of the structure of the baffle plate and the vertical drive component of this utility model. Figure 5 This is a schematic diagram of the structure of the sealed rubber mixing machine of this utility model.

[0016] In the diagram: 1. Sealed rubber mixing mill; 2. Discharge and weighing hopper; 3. Baffle plate; 4. Support cover; 5. Reciprocating screw; 6. Crescent slider; 7. First motor; 8. Connecting frame; 9. Rotating shaft; 10. Second motor; 11. Support rod; 12. Support block; 13. Lifting rod; 14. Fixing rod. Detailed Implementation The present invention 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 invention and not intended to limit its scope.

[0017] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" 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 "linking" 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 utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly 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 utility model.

[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, this invention illustrates a rubber mixing mill with spill prevention in one embodiment of the present invention. The mill includes a sealed mixing mill 1 with a feed inlet at its top. It also includes a weighing hopper 2, a weighing assembly, and a baffle plate 3. The weighing hopper 2 is mounted on the side of the sealed mixing mill 1 via a height adjustment assembly. The weighing assembly is mounted on the height adjustment assembly and is used to pour material from the weighing hopper 2. The baffle plate 3 is slidably mounted inside the weighing hopper 2 via a vertical drive assembly and is used to block material poured into the weighing hopper 2.

[0023] like Figure 2 and Figure 3As shown, during rubber mixing, the operator first opens the cover plate at the feed inlet of the sealed rubber mixing mill 1. Then, through the cooperation of the height adjustment component and the tilting component, the weighing hopper 2 is moved. The height adjustment component includes a support cover 4, a reciprocating screw 5, and a first motor 7. The support cover 4 is fixedly installed on the side of the sealed rubber mixing mill 1. The reciprocating screw 5 is rotatably installed inside the support cover 4, and a matching crescent-shaped slider 6 is installed on the reciprocating screw 5. The first motor 7 is installed on the support cover 4, and the output end of the first motor 7 is coaxially connected to the reciprocating screw 5. The tilting component includes a connecting frame 8, a rotating shaft 9, a second motor 10, and a support component. The connecting frame 8 is U-shaped and fixedly installed on the side of the crescent slider 6. Rotating shafts 9 are rotatably installed on both sides of the connecting frame 8, and the material weighing hopper 2 is fixedly installed between the two rotating shafts 9. The second motor 10 is installed on the side of the connecting frame 8, and the output end of the second motor 10 is coaxially connected to one of the rotating shafts 9. The support assembly is set on the sealed rubber mixing mill 1 and is used to support the material weighing hopper 2 when the material is poured into it. The support assembly includes support rods 11 and support blocks 12. Support rods 11 are fixedly installed on both sides of the material weighing hopper 2, and two support blocks 12 are fixedly installed on the top of the sealed rubber mixing mill 1.

[0024] Specifically, at this time, the weighing hopper 2 is in a horizontal position. Then, the first motor 7 is started. The output end of the first motor 7 drives the reciprocating screw 5 to rotate inside the support cover 4, thereby causing the crescent-shaped slider 6 to move downward on the reciprocating screw 5. The crescent-shaped slider 6 drives the connecting frame 8 to move downward, thereby causing the weighing hopper 2 to move downward. Because the top of the support block 12 has a groove, the bottom end of the support rod 11 matches the groove, and the bottom end of the support rod 11 and the groove are in the same vertical position. Then, the hopper moves downward until the bottom end of the support rod 11 is inserted into the groove. The support block 12 stops in its groove. It should be added that the shape of the crescent slider 6 matches the helical groove of the reciprocating screw 5. When the reciprocating screw 5 rotates, the side wall of the helical groove will generate an axial thrust on the crescent slider 6 embedded therein. The crescent slider 6 can move along the axial trajectory of the reciprocating screw 5, thereby moving up and down. When the crescent slider 6 reaches the end of the reciprocating screw 5, the crescent slider 6 will smoothly transition to the reverse helical groove, thereby realizing reciprocating movement. This is a well-known technology and will not be described in detail.

[0025] like Figure 4As shown, after the movement is completed, the worker uses the vertical drive component to push the baffle plate 3 through the pouring weighing hopper 2, moving it upward into the pouring weighing hopper 2. Then, the baffle plate 3 blocks the pouring weighing hopper 2, forming a cavity. The vertical drive component includes a lifting rod 13 and a fixing rod 14. There are two lifting rods 13, which are U-shaped. One end of each lifting rod 13 is fixedly installed at the bottom of the baffle plate 3. The fixing rod 14 is fixedly installed between the two lifting rods 13, and a handle is fixedly installed on the side of the fixing rod 14.

[0026] Specifically, when the weighing hopper 2 is moved up and down, because the top of the weighing hopper 2 has a placement groove and the bottom of the fixing rod 14 is adapted to the placement groove, the bottom of the fixing rod 14 contacts the placement groove. At this time, the top of the baffle plate 3 and the inner top of the weighing hopper 2 are at the same horizontal position. When it is necessary to add rubber granules into the weighing hopper 2, the operator can pull the handle with one hand to move the fixing rod 14 and the lifting rod 13 upward, thereby moving the baffle plate 3 upward into the hopper. Once the material is poured into the weighing hopper 2, the worker can use their other hand or another worker to pour the granules into the weighing hopper 2. The process stops when the weighing hopper 2 is full of granules. At this point, the capacity is 80% of the mixing chamber of the sealed rubber mixing mill 1, so there will be no or little overflow during subsequent rubber mixing. During the pouring process, the support rod 11 and the support block 12 can support the weighing hopper 2. It should be noted that the two lifting rods 13 are respectively slidably mounted on the two support rods.

[0027] After feeding is completed, the first motor 7 is started again, which drives the pouring weighing hopper 2 to move up until the support rod 11 is disengaged from the groove of the support block 12. After disengagement, the operator releases the handle. At this time, the fixing rod 14 falls into the placement groove at the top of the pouring weighing hopper 2 under the action of gravity. At this time, the top of the baffle plate 3 and the inner top of the pouring weighing hopper 2 are at the same horizontal position. Then, the second motor 10 is started. The output end of the second motor 10 drives the rotating shaft 9 and the pouring weighing hopper 2 to rotate in the connecting frame 8. Because the length and width of the pouring weighing hopper 2 are smaller than the length and width of the feed port of the sealed rubber mixing mill 1, all the particles in the pouring weighing hopper 2 can be poured into the sealed rubber mixing mill 1.

[0028] Working principle: When mixing rubber, after opening the cover plate at the feed inlet of the sealed rubber mixing mill 1, start the first motor 7. The output end of the first motor 7 drives the reciprocating screw 5 to rotate inside the support cover 4, thereby causing the crescent slider 6 to move down on the reciprocating screw 5. The crescent slider 6 drives the connecting frame 8 to move down, thereby causing the pouring weighing hopper 2 to move down. Because the top of the support block 12 has a groove, the bottom end of the support rod 11 is adapted to the groove, and the bottom end of the support rod 11 is located in the same vertical position as the groove. The movement stops when the bottom end of the support rod 11 is inserted into the groove of the support block 12. Then, the operator can pull the handle with one hand to move the fixed rod 14 and the lifting rod 13 up, thereby moving the baffle plate 3 up into the interior of the pouring weighing hopper 2. The operator can then use the other hand or another operator to pour the granules into the pouring weighing hopper 2. The movement stops when the granules fill the pouring weighing hopper 2.

[0029] Immediately after the feeding is completed, the first motor 7 is started again, which drives the pouring weighing hopper 2 to move up until the support rod 11 disengages from the groove of the support block 12. After disengagement, the operator releases the handle, and the fixing rod 14 falls into the placement slot at the top of the pouring weighing hopper 2 under the action of gravity. Then, the second motor 10 is started. The output end of the second motor 10 drives the rotating shaft 9 and the pouring weighing hopper 2 to rotate in the connecting frame 8, so that all the particles in the pouring weighing hopper 2 can be poured into the sealed rubber mixing mill 1.

[0030] like Figure 5 As shown, after pouring, the cover is closed, and the operator starts the switch of the sealed rubber mixing mill 1. The motor drives the two rotors inside the sealed rubber mixing mill 1 to rotate through the reducer. The two rotors generate relative motion due to the speed difference. The spiral ridges on the rotor surface grab the material and push it forward. The gaps between the rotor and the mixing chamber, and between the two rotors, are extremely small. The material is forcibly squeezed through the gaps, generating violent shearing, which cuts the large molecules of raw rubber, creating conditions for the dispersion of auxiliary materials. Furthermore, the spiral ridge structure of the rotor causes the material to be continuously folded and kneaded during rotation, forming convective mixing, ensuring that the auxiliary materials are evenly distributed in the rubber. Finally, after the rubber mixing is completed, the hydraulic system is started to open the discharge gate of the sealed rubber mixing mill 1 section. The rotor continues to rotate, pushing the rubber out of the sealed rubber mixing mill 1. This is existing technology and will not be described in detail.

[0031] It should be added that if the material used in rubber mixing is granular, it can be fed by tilting. Both the first motor 7 and the second motor 10 are electrically connected to the sealed rubber mixing mill 1, so the first motor 7 and the second motor 10 can be controlled through the control panel of the sealed rubber mixing mill 1. Furthermore, a telescopic protective cover is installed on the outside of the reciprocating screw 5 to protect it. The inner side wall of the support cover 4 is provided with a limit groove, and a limit block is slidably installed in the limit groove. The limit block is fixedly connected to the side of the crescent slider 6, thereby limiting the rotation of the crescent slider 6.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rubber mixing mill with spill prevention, comprising a sealed mixing mill (1), wherein the top of the sealed mixing mill (1) is provided with a feed inlet, characterized in that, Also includes: A material weighing hopper (2) is provided on the side of the sealed rubber mixing mill (1) via a height adjustment assembly; A material pouring assembly is provided on the height adjustment assembly and is used to pour the material in the material pouring weighing hopper (2); The baffle plate (3) is slidably installed inside the pouring weighing hopper (2) through a vertical drive component to block the material poured into the pouring weighing hopper (2).

2. The rubber mixing mill for preventing spillage according to claim 1, characterized in that, The height adjustment component includes: Support cover (4), the support cover (4) is fixedly installed on the side of the sealed rubber mixing machine (1); A reciprocating lead screw (5) is rotatably mounted inside the support cover (4), and a matching crescent-shaped slider (6) is mounted on the reciprocating lead screw (5). The first motor (7) is mounted on the support cover (4), and the output end of the first motor (7) is coaxially connected to the reciprocating screw (5).

3. A rubber mixing mill for preventing spillage according to claim 2, characterized in that, The material pouring assembly includes: A connecting frame (8) is provided with a U-shape, and the connecting frame (8) is fixedly installed on the side of the crescent slider (6); The rotating shaft (9) is rotatably mounted on both sides of the connecting frame (8), and the material weighing hopper (2) is fixedly installed between the two rotating shafts (9). The second motor (10) is mounted on the side of the connecting frame (8), and the output end of the second motor (10) is coaxially connected to one of the rotating shafts (9); A support assembly is provided on the sealed rubber mixing mill (1) to support the material weighing hopper (2) when the material is poured into it.

4. A rubber mixing mill for preventing spillage according to claim 3, characterized in that, The support components include: Support rod (11) is fixedly installed on both sides of the material weighing hopper (2). Support blocks (12): Two support blocks (12) are fixedly installed at the top of the sealed rubber mixing mill (1).

5. A rubber mixing mill for preventing spillage according to claim 4, characterized in that, The vertical drive component includes: Lifting rod (13), there are two lifting rods (13), the lifting rods (13) are set in U shape, and one end of each of the two lifting rods (13) is fixedly installed at the bottom end of the baffle plate (3); A fixing rod (14) is fixedly installed between the two lifting rods (13), and a handle is fixedly installed on the side of the fixing rod (14).

6. A rubber mixing mill for preventing spillage according to claim 4, characterized in that, The top of the support block (12) is provided with a groove, the bottom end of the support rod (11) is adapted to the groove, and the bottom end of the support rod (11) and the groove are located in the same vertical position.

7. A rubber mixing mill for preventing spillage according to claim 5, characterized in that, The top of the material weighing hopper (2) is provided with a placement groove, and the bottom end of the fixing rod (14) is adapted to the placement groove.

8. A rubber mixing mill for preventing spillage according to claim 1, characterized in that, The length and width of the material weighing hopper (2) are smaller than the length and width of the feed inlet of the sealed rubber mixing mill (1), respectively.

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