High-speed mixer

Abstract

The utility model provides a high-speed mixing machine. The high-speed mixing machine comprises a mixing machine body, a first screen and a pneumatic assembly, wherein a mixing cavity is formed in the mixing machine body, and a plurality of air inlets are formed in the cavity wall of the mixing cavity; the first screen is arranged in the mixing cavity and divides the mixing cavity into a feeding cavity and a stirring cavity, the feeding cavity is located above the stirring cavity, part of the air inlets are formed in the cavity wall of the feeding cavity, and the other part of the air inlets are formed in the cavity wall of the stirring cavity; the pneumatic assembly comprises a gas supply part, a main gas conveying pipe and a plurality of branch gas conveying pipes, a gas outlet of the gas supply part is communicated with the main gas conveying pipe, the main gas conveying pipe is communicated with the branch gas conveying pipes, the number of the branch gas conveying pipes is the same as that of the gas inlets in a one-to-one correspondence mode, and the branch gas conveying pipes are communicated with the corresponding gas inlets. And the rubber filler can be quickly dispersed and fed into the stirring cavity from the feeding cavity through the gas, so that the screening effect of the first screen on the small-particle-size filler is enhanced, and the mixing efficiency of the high-speed mixer on rubber components is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber mixing, in particular to a high-speed mixer. Background Art

[0002] Rubber products usually need to add fillers to improve the physical and chemical properties of rubber in order to achieve different functions and have different characteristics. Common fillers include carbon black, silica, titanium dioxide, cellulose, alumina, etc. Different or the same fillers have different particle sizes. The particle size refers to the diameter of the filler particles, and there is a certain relationship between the particle size and the difficulty of rubber mixing.

[0003] For example, when space is limited, there are more small-particle filler materials, so they have a larger surface area overall, and the contact area between filler particles increases accordingly, thereby reducing the contact pressure per unit area and, in turn, reducing friction. This makes them easier to contact and react with other additives, thereby improving the uniformity of mixing. In contrast, larger-particle rubber materials have a smaller number and a smaller overall surface area, and their contact area with other additives is also smaller, resulting in uneven mixing of small-particle fillers and large-particle fillers, and local agglomeration is prone to occur during the mixing process. Utility Model Content

[0004] The technical purpose of the utility model is to provide a high-speed mixer, aiming to solve the problem of agglomeration caused by uneven mixing of large-diameter rubber fillers.

[0005] In order to solve the above technical problems, the utility model is implemented as follows: a high-speed mixer, comprising:

[0006] The mixer body has a mixing chamber inside, and the wall of the mixing chamber is provided with a plurality of air inlets;

[0007] a first screen, the first screen being arranged in the mixing chamber, the first screen dividing the mixing chamber into a feeding chamber and a stirring chamber, the feeding chamber being located above the stirring chamber, part of the air inlet being formed on the chamber wall of the feeding chamber, and another part of the air inlet being formed on the chamber wall of the stirring chamber;

[0008] A pneumatic component includes a gas supply component, a main gas pipe and multiple branch gas pipes, wherein the gas outlet of the gas supply component is connected to the main gas pipe, and the main gas pipe is connected to the multiple branch gas pipes respectively, the number of the multiple branch gas pipes is the same as the number of the multiple gas inlets and corresponds one to one, and the branch gas pipes are connected to the corresponding gas inlets.

[0009] In some embodiments of the present invention, the high-speed mixer also includes at least two second sieves, the sieve hole diameter of the second sieves is larger than the sieve hole diameter of the first sieve, the sieve hole diameters of all the second sieves are different from each other, and each of the second sieves is detachably connected to the cavity wall of the feeding cavity.

[0010] In some embodiments of the present invention, all of the second screens are installed on the cavity wall of the feeding chamber, the first screen and all of the second screens are spaced apart in the direction from the stirring chamber to the feeding chamber, and the sieve hole diameter of the second screen gradually increases in the direction approaching the feeding chamber.

[0011] In some embodiments of the present invention, a second draw-out opening is provided through the peripheral wall of the feeding cavity;

[0012] The second screen includes two second side edge portions arranged opposite to each other, each of the second side edge portions is fixedly connected to a second bracket, the second bracket is inserted into the feed cavity through the second pull-out port, and the portion of the second bracket located in the feed cavity is slidably connected to the cavity wall of the feed cavity.

[0013] In some embodiments of the present invention, the high-speed mixer also includes a second connecting frame connecting the two second brackets, the second connecting frame is exposed outside the mixer body, and a second grip is formed on the second connecting frame, and the second grip is used for a user to grip and pull the corresponding second screen.

[0014] In some embodiments of the present invention, a first draw-out opening is provided through the peripheral wall of the mixing chamber;

[0015] The first screen includes two first side edge portions arranged opposite to each other, each of the first side edge portions is fixedly connected to a first bracket, the first bracket is inserted into the mixing chamber through the first pull-out opening, and the portion of the first bracket located in the mixing chamber is slidably connected to the cavity wall of the mixing chamber.

[0016] In some embodiments of the present invention, the high-speed mixer also includes a first connecting frame connecting the two first brackets, the first connecting frame is exposed outside the mixer body, and a first grip is formed on the first connecting frame, and the first grip is used for a user to grip to pull the first screen.

[0017] Compared with the prior art, the medium- and high-speed mixer of the utility model has the following beneficial effects:

[0018] The utility model proposes a high-speed mixer, comprising a mixer body, a first screen and a pneumatic component; wherein a mixing chamber is provided in the mixer body, and a plurality of air inlets are provided on the chamber wall of the mixing chamber; the first screen is provided in the mixing chamber, and the first screen divides the mixing chamber into a feeding chamber and a stirring chamber, the feeding chamber is located above the stirring chamber, part of the air inlets are formed on the chamber wall of the feeding chamber, and the other part of the air inlets are formed on the chamber wall of the stirring chamber; the pneumatic component comprises a gas supply component, a main gas pipe and a plurality of branch gas pipes, the gas outlet of the gas supply component is connected with the main gas pipe, the main gas pipe is respectively connected with the plurality of branch gas pipes, the number of the plurality of branch gas pipes is the same as the number of the plurality of air inlets so as to correspond one to one, and the branch gas pipes are connected with the corresponding air inlets. Since the gas provided by the pneumatic component can quickly disperse the rubber filler and send it from the feeding chamber into the stirring chamber, the screening effect of the first screen on the small-particle filler is strengthened. After the small-particle filler enters the stirring chamber, it can fully contact with the rubber raw material, making the mixing between the rubber filler and the rubber raw material more uniform, eliminating the phenomenon of local agglomeration, and improving the mixing efficiency of the high-speed mixer for the rubber components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a high-speed mixer in one embodiment of the utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure of a medium-high speed mixer pulling out the first screen and the second screen;

[0021] Figure 3 yes Figure 1 A schematic cross-sectional view of a medium- and high-speed mixer in one direction;

[0022] Figure 4 yes Figure 1 A schematic cross-sectional view of the medium- and high-speed mixer in another direction;

[0023] Figure 5 yes Figure 1 Schematic diagram of the structure of the first screen of the medium-high speed mixer.

[0024] In the accompanying drawings, each reference numeral represents:

[0025] 100. High-speed mixer; 11. Mixer body; 111. Mixing chamber; 1111. Feeding chamber; 1112. Stirring chamber; 112. Air inlet; 113. First pull-out opening; 114. Second pull-out opening; 12. First screen; 121. First bracket; 122. First connecting frame; 123. First gripping part; 13. Second screen; 14. Pneumatic assembly; 141. Gas supply component; 142. Main gas pipe; 143. Branch gas pipe; 15. Stirring column. DETAILED DESCRIPTION

[0026] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Please refer to Figures 1 to 5 The utility model proposes a high-speed mixer 100, comprising: a mixer body 11, a first screen 12 and a pneumatic assembly 14, wherein a mixing chamber 111 is provided in the mixer body 11, and a plurality of air inlets 112 are provided on the wall of the mixing chamber 111; the first screen 12 is provided in the mixing chamber 111, and the first screen 12 separates the mixing chamber 111 into a feeding chamber 1111 and a stirring chamber 1112, the feeding chamber 1111 is located above the stirring chamber 1112, and part of the air inlets 112 are formed on the feeding chamber 1111. On the cavity wall of the cavity 1111, another part of the air inlet 112 is formed on the cavity wall of the stirring cavity 1112; the pneumatic component 14 includes a gas supply part 141, a main gas pipe 142 and multiple branch gas pipes 143, the gas outlet of the gas supply part 141 is connected to the main gas pipe 142, the main gas pipe 142 is respectively connected to multiple branch gas pipes 143, the number of the multiple branch gas pipes 143 is the same as the number of the multiple air inlets 112, and the branch gas pipes 143 are connected to the corresponding air inlets 112.

[0030] The operator fills the feeding chamber 1111 with rubber filler and places it on the first screen 12. The first screen 12 has multiple sieve holes, which can screen small-particle materials in the rubber filler into the stirring chamber 1112. When space is limited, the stirring chamber 1112 can accommodate more small-particle rubber fillers, which will generally increase the surface area of ​​the material in the stirring chamber 1112, and the contact area between the filler particles will also increase, thereby reducing the contact pressure per unit area and further reducing the friction.

[0031] At the same time, the interaction force between small-particle rubber fillers is smaller, and they are relatively easy to slide, reducing the friction between particles. Small-particle rubber fillers form more microscopic concave-convex structures on the surface of the material. These structures help to store and release rubber raw materials, providing better lubrication effects, thereby reducing friction between filler particles.

[0032] Since the gas provided by the pneumatic component 14 can quickly disperse the rubber filler, the rubber filler can be sent from the feeding chamber 1111 to the stirring chamber 1112. The stirring chamber 1112 can be provided with a stirring column 15, and the stirring column 15 is provided with a plurality of stirring blades. The shaking of the machine body during the stirring process can improve the screening effect of the first screen 12 on the small-particle filler, so that the rubber filler and the rubber raw material are mixed evenly, and the mixing efficiency of the high-speed mixer 100 on the rubber component is improved. With the help of the pneumatic component 14, the operator only needs to put the rubber and the filler into the feeding chamber 1111, and no additional operation is required, which greatly reduces the difficulty of operation and labor intensity.

[0033] At the same time, the air distribution pipe 143 of the pneumatic component 14 injects gas into the rubber mixture through the air inlet 112 on the wall of the stirring chamber 1112, which can produce stirring and agitation effects and promote the mixing of rubber raw materials and other components, which helps to speed up the mixing process, improve the mixing effect, and ensure that various additives are evenly dispersed in the rubber.

[0034] Furthermore, the gas can be used as a heat transfer medium to transfer heat to the rubber mixture to increase its temperature. This helps control the temperature of the rubber and promote reactions such as vulcanization. In some embodiments, certain specific chemical reactions may require the participation of gas, for example, gas in the mixture can promote certain specific chemical reactions and improve the performance of the rubber.

[0035] In one embodiment, please refer to Figure 1 and Figure 2A first pull-out opening 113 is provided on the peripheral wall of the mixing chamber 111; the first screen 12 includes two first side edge portions arranged opposite to each other, each of which is fixedly connected to a first bracket 121, and the first bracket 121 is inserted into the mixing chamber 111 through the first pull-out opening 113, and the portion of the first bracket 121 located in the mixing chamber 111 is slidably connected to the wall of the mixing chamber 111.

[0036] A first pull-out port 113 is provided, and the first sieve 12 can be partially pulled out of the mixing chamber 111 through the first pull-out port 113, and the rubber filler screened out by the first sieve 12 is added into the stirring chamber 1112 and stirred again by the stirring column 15. The smaller particles in the rubber filler are screened from the feeding chamber 1111 to the stirring chamber 1112 by the first sieve 12, and the rubber filler with smaller particles is stirred and mixed first. At this time, the mixing efficiency is high and the mixing resistance is small.

[0037] After the rubber filler with smaller particle size is evenly mixed with the raw material, the first screen 12 is partially pulled out from the first pull-out port 113, so that the feeding chamber 1111 and the stirring chamber 1112 are connected, and the rubber filler with larger particle size can enter the stirring chamber 1112 for stirring again. At this time, the rotation speed of the stirring column 15 can be increased to counteract the greater friction between the rubber components. The rubber filler is stirred and mixed in stages, thereby achieving uniform mixing between the rubber components.

[0038] The rotation speed of the stirring column 15 is adjusted according to the rubber fillers of different particle sizes to reduce the mixing time and improve the mixing efficiency and production efficiency of the high-speed mixer 100. By using different rotation speeds to mix fillers of different particle sizes, the aggregation and clogging of the fillers can also be avoided, thereby ensuring the uniformity and consistency of the rubber products.

[0039] At the same time, the provision of the first pull-out opening 113 can conveniently pull the first screen 12 out of the mixing chamber 111 for cleaning and maintenance, which helps to maintain the cleanliness of the first screen 12 and extend the service life of the high-speed mixer 100.

[0040] Specifically, the sliding connection between the first bracket 121 and the cavity wall of the mixing chamber 111 can be in the form of: two pulleys can be relatively arranged at a position of the cavity wall of the mixing chamber 111 close to the first pull-out opening 113, the two first brackets 121 are slidably assembled with the two pulleys in a one-to-one correspondence, and the first screen 12 can slide in the first pull-out opening 113 along the extension direction of the first bracket 121.

[0041] In other embodiments, a sleeve or a bearing slidably connected to the first bracket 121 may be provided on the cavity wall of the mixing cavity 111, which can enable the first screen 12 to slide in and out of the first draw-out opening 113, and will not be described in detail here.

[0042] The first side edges are arranged on opposite sides of the first screen 12. Compared with the upper and lower planes of the first screen 12, the two oppositely arranged first side edges retain the flexibility of the first screen 12 while maintaining the balance of the first screen 12 during the sliding process.

[0043] For further information, please refer to Figure 5 The high-speed mixer 100 further includes a first connecting frame 122 connecting the two first brackets 121, the first connecting frame 122 is exposed outside the mixer body 11, and a first gripping portion 123 is formed on the first connecting frame 122, and the first gripping portion 123 is used for a user to grip and pull the first screen 12. The first gripping portion 123 facilitates the user to push and pull the first screen 12, and helps the first screen 12 to add fillers of other particle sizes into the stirring chamber 1112 after screening the small-particle fillers.

[0044] In the process of screening small particle size fillers, the user can push and pull the first screen 12 to achieve vibration of the first screen 12, effectively preventing larger particle size fillers from clogging the sieve holes of the first screen 12 and improving the screening efficiency of the first screen 12.

[0045] In one embodiment, please refer to Figure 3 and Figure 4 The high-speed mixer 100 also includes at least two second screens 13, the screen hole diameter of the second screen 13 is larger than the screen hole diameter of the first screen 12, the screen hole diameters of all the second screens 13 are different from each other, and each second screen 13 is detachably connected to the cavity wall of the feeding cavity 1111.

[0046] By adding a plurality of second sieves 13 with sieve holes of different diameters, the particle size distribution of the filler can be effectively controlled, so that the filler in the rubber material is more evenly distributed in different particle size ranges. According to different screening requirements, the second sieve 13 with the corresponding sieve hole diameter is selected for screening, and the sieve hole diameters of each second sieve 13 are different. For example, the diameter of a second sieve 13 can be 2 mm, which can screen out fillers with a particle size greater than 2 mm. The diameter of another second sieve 13 can be 10 mm, which can screen out fillers and impurities with a particle size greater than 10 mm. Fillers and impurities greater than 10 mm can be removed, and fillers with a particle size between 2 mm and 10 mm can be reused. By pulling out the first sieve 12 from the first pull-out port 113, the fillers within the particle size range are placed in the stirring chamber 1112 for stirring, and fillers of different particle sizes are stirred in batches, effectively reducing the stirring time and the energy consumption of the stirring column 15.

[0047] In order to realize the rotation of the stirring column 15, in one embodiment, a motor can be installed on the outside of the mixer body 11, and the drive shaft of the motor is connected to the stirring column 15. The speed of the stirring column 15 can be changed by adjusting the speed of the motor. For rubber fillers with different particle sizes, at the same speed, the smaller the particle size of the rubber filler, the shorter the stirring time. At the same time, the larger the particle size of the rubber filler, the faster the speed, and the greater the required power consumption. Therefore, stirring rubber fillers with different particle sizes according to their particle sizes can effectively shorten the stirring time or reduce energy consumption.

[0048] In another embodiment, a rotating cylinder can be installed on the outside of the mixer body 11, and the rotating cylinder is connected to the gas supply part 141 in the pneumatic component 14. The rotating cylinder can convert linear motion into rotational motion. For example, a roller and a roller rod can be added to the rotating cylinder. The roller rod is connected to the cylinder column by transmission, and a roller track is provided on the roller rod. As the roller rod moves back and forth, the roller rotates along the roller track, and the rotating axis of the roller is connected to the stirring rod by transmission, thereby realizing the rotation of the stirring rod.

[0049] It is understandable that, since the mesh diameter of the second screen 13 is larger than that of the first screen 12, the screening effect of the second screen 13 can separate the fillers with larger particle sizes, avoid the fillers with larger particle sizes from clogging the first screen 12, and improve the screening effect of the first screen 12 on the fillers with small particle sizes. Each second screen 13 is detachably connected to the cavity wall of the feed cavity 1111, which makes it more convenient to clean and replace the screen. During the mixing process, filler residue or other impurities may appear. The second screen 13 can be removed to clean or replace it, ensuring the normal operation and mixing effect of the equipment.

[0050] Furthermore, all the second screens 13 are installed on the cavity wall of the feeding chamber 1111, and the first screen 12 and all the second screens 13 are spaced apart in the direction from the stirring chamber 1112 to the feeding chamber 1111, and the mesh diameter of the second screen 13 gradually increases along the direction close to the feeding chamber 1111. The first screen 12 and the plurality of second screens 13 are arranged in sequence, and the mesh diameters increase in sequence. The rubber filler first passes through the second screen 13 with the largest mesh diameter, and is screened in sequence, and finally passes through the first screen 12 with the smallest mesh diameter, so as to realize the graded screening of the rubber filler. According to the relationship between the particle size of the rubber filler and the rotation speed or rotation time of the stirring column 15, the rubber filler with gradually increasing particle size is stirred in batches in sequence, so as to save stirring time or reduce stirring energy consumption.

[0051] Similarly, according to the aforementioned arrangement of the first draw-out opening 113 and the first screen 12, a second draw-out opening 114 is provided through the peripheral wall of the feed cavity 1111; the second screen 13 includes two second side edges arranged opposite to each other, each second side edge is fixedly connected to a second bracket, the second bracket is inserted into the feed cavity 1111 through the second draw-out opening 114, and the portion of the second bracket located in the feed cavity 1111 is slidably connected to the cavity wall of the feed cavity 1111. The first draw-out opening 113 and the second draw-out opening 114 are arranged at intervals.

[0052] To facilitate the user to pull out the second screen 13, the high-speed mixer 100 also includes a second connecting frame connecting the two second brackets, the second connecting frame is exposed outside the mixer body 11, and a second grip is formed on the second connecting frame, which is used for the user to hold and pull out the corresponding second screen 13.

[0053] In one embodiment, two connecting shafts may be protruded from opposite sides of the mixer body 11. The high-speed mixer 100 also includes a rotating bracket perpendicular to the placement plane. The rotating bracket includes two vertically arranged installations. Each installation column is rotatably connected to a connecting shaft, and the mixer body 11 remains suspended. The user can push the mixer body 11 to shake the rubber filler and rubber raw material in the mixing chamber 111, thereby improving the mixing efficiency between the rubber components and making the mixing more uniform.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed mixer, characterized in that: include: A mixer body (11) is provided with a mixing chamber (111) therein, and a cavity wall of the mixing chamber (111) is provided with a plurality of air inlets (112); a first screen (12), wherein the first screen (12) is arranged in the mixing chamber (111), and the first screen (12) divides the mixing chamber (111) into a feeding chamber (1111) and a stirring chamber (1112), the feeding chamber (1111) being located above the stirring chamber (1112), a portion of the air inlet (112) being formed on the chamber wall of the feeding chamber (1111), and another portion of the air inlet (112) being formed on the chamber wall of the stirring chamber (1112); A pneumatic component (14) comprises a gas supply component (141), a main gas pipe (142) and a plurality of branch gas pipes (143); a gas outlet of the gas supply component (141) is connected to the main gas pipe (142); the main gas pipe (142) is respectively connected to the plurality of branch gas pipes (143); the number of the plurality of branch gas pipes (143) is the same as the number of the plurality of gas inlets (112) so as to correspond one to one; and the branch gas pipes (143) are connected to the corresponding gas inlets (112).

2. The high-speed mixer according to claim 1, characterized in that The high-speed mixer (100) further comprises at least two second screens (13), the screen hole diameter of the second screen (13) being larger than the screen hole diameter of the first screen (12), the screen hole diameters of all the second screens (13) being different from each other, and each of the second screens (13) is detachably connected to the cavity wall of the feeding cavity (1111).

3. The high-speed mixer according to claim 2, characterized in that All of the second screens (13) are installed on the cavity wall of the feeding cavity (1111); the first screen (12) and all of the second screens (13) are distributed at intervals in the direction from the stirring cavity (1112) to the feeding cavity (1111); and the sieve hole diameter of the second screen (13) gradually increases in the direction approaching the feeding cavity (1111).

4. The high-speed mixer according to claim 2, characterized in that A second drawing opening (114) is provided through the peripheral wall of the feeding cavity (1111); The second screen (13) includes two second side edge portions arranged opposite to each other, each of the second side edge portions is fixedly connected to a second bracket, the second bracket is inserted into the feed cavity (1111) through the second pull-out opening (114), and the portion of the second bracket located in the feed cavity (1111) is slidably connected to the cavity wall of the feed cavity (1111).

5. The high-speed mixer according to claim 4, characterized in that The high-speed mixer (100) further comprises a second connecting frame connecting the two second brackets, the second connecting frame being exposed outside the mixer body (11), and a second gripping portion being formed on the second connecting frame, the second gripping portion being used for a user to grip and pull out the corresponding second screen (13).

6. The high-speed mixer according to claim 1, characterized in that A first draw-out opening (113) is provided through the peripheral wall of the mixing chamber (111); The first screen (12) comprises two first side edge portions which are arranged opposite to each other, each of the first side edge portions is fixedly connected to a first bracket (121), the first bracket (121) is inserted into the mixing chamber (111) through the first pull-out opening (113), and the portion of the first bracket (121) located in the mixing chamber (111) is slidably connected to the wall of the mixing chamber (111).

7. The high-speed mixer according to claim 6, characterized in that The high-speed mixer (100) further comprises a first connecting frame (122) connecting the two first brackets (121), the first connecting frame (122) being exposed outside the mixer body (11), and a first gripping portion (123) being formed on the first connecting frame (122), the first gripping portion (123) being used for a user to grip and pull out the first screen (12).

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