Material mixing device

Abstract

The embodiment of the invention discloses a material mixing device which comprises a first material mixing module and a second material mixing module, the first material mixing module comprises a first shell and a first material mixing assembly, a first mixing cavity is formed in the first shell, the first shell is provided with a first feeding port and a first discharging port, and the first feeding port and the first discharging port are correspondingly arranged in the vertical direction; the first mixing assembly can mix materials to form a mixture, and the mixture can be discharged from the first discharge port; the second material mixing module comprises a second shell and a second material mixing assembly, a second mixing cavity is formed in the second shell, the second shell is provided with a second feeding port and a second discharging port, the second feeding port and the second discharging port are arranged at intervals in the first horizontal direction, the second feeding port communicates with the first discharging port, and the second discharging port communicates with the second mixing cavity; the second mixing assembly is used for pushing the mixture to move to the second discharging port in the first horizontal direction and conducting secondary mixing on the mixture in the pushing process.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and in particular to a material mixing device. Background Art

[0002] Dry electrode technology is an innovative method for producing lithium battery electrodes. Dry electrodes do not require the introduction of liquid during production. Dry electrode technology is achieved by dry mixing active materials, adhesives and conductive additives in specific proportions. Under the fiberization of the adhesive, the mixture can form a supportive film, which is then bonded to the current collector through a roller pressing process. The main synthesis processes of dry electrodes include material mixing, material fiberization, material formation of a self-supporting film, and composite of the film and the current collector. The first step of the dry electrode is material mixing, and the uniformity of material mixing will directly affect the quality of the electrode.

[0003] However, the current dry electrode material mixing mainly relies on equipment such as high-speed mixers and airflow mills. High-speed mixers and airflow mills are limited to intermittent production modes, and the single mixing cycle is long, making it difficult to adapt to large-scale, continuous production needs. Summary of the invention

[0004] The embodiment of the present application discloses a material mixing device, which can continuously and evenly mix materials, thereby solving the problem that the material mixing process is discontinuous and time-consuming.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a material mixing device, comprising: a first mixing module, the first mixing module comprising a first shell and a first mixing component, a first mixing chamber is formed inside the first shell, the first shell is provided with a first feed port and a first discharge port, the first feed port and the first discharge port are connected to the first mixing chamber, the first feed port and the first discharge port are correspondingly arranged in the vertical direction, the first mixing component is located in the first mixing chamber, the first mixing component can mix materials to form a mixture, and the mixture can be discharged from the first discharge port; a second mixing module, the second mixing module comprising a second shell and a second mixing component, a second mixing chamber is formed inside the second shell, the second shell is provided with a second feed port and a second discharge port, the second feed port and the second discharge port are arranged at intervals along a first horizontal direction, the second feed port and the second discharge port are connected to the second mixing chamber, the second feed port is connected to the first discharge port, the second mixing component is located in the second mixing chamber, the second mixing component is used to push the mixture to move along the first horizontal direction to the second discharge port, and perform secondary mixing on the mixture during the pushing process.

[0006] As an optional embodiment, the first mixing component includes: a first kneading piece, which is rotatably connected to the first shell and is located in the first mixing chamber; a second kneading piece, which is rotatably connected to the first shell and is located in the first mixing chamber, the first kneading piece and the second kneading piece are arranged along a second horizontal direction, a kneading channel is formed between the first kneading piece and the second kneading piece, and the kneading channel corresponds to the first discharge port in the vertical direction; a first driving component is arranged in the first shell, and the first driving component can drive the first kneading piece and / or the second kneading piece to rotate relative to each other, so that the first kneading piece and the second kneading piece mix the material.

[0007] As an optional embodiment, the first kneading member includes: a first rotating shaft, located in the first mixing chamber, the first rotating shaft is rotatably connected to the first shell, the first rotating shaft extends along a first horizontal direction, the first rotating shaft is connected to the first driving assembly, and the first rotating shaft can rotate under the drive of the first driving assembly; a first kneading paddle, the first kneading paddle is arranged on the first rotating shaft, and the first kneading paddle can rotate following the first rotating shaft.

[0008] As an optional implementation, a plurality of first kneading blades are disposed on the first rotating shaft, and the plurality of first kneading blades are arranged at intervals along an extension direction of the first rotating shaft.

[0009] As an optional embodiment, the first kneading blade includes: a mounting portion, which is sleeved on the first rotating shaft; and a blade portion, wherein the blade portion is multiple, and the multiple blade portions are spirally arranged on the mounting portion, and the multiple blade portions are arranged around the outer surface of the first rotating shaft.

[0010] As an optional embodiment, the second kneading member includes a second rotating shaft, and the first driving assembly includes: a first gear, the first gear is sleeved on the first rotating shaft, and the first gear can rotate along with the first rotating shaft; a second gear, the second gear is sleeved on the second rotating shaft, the second gear and the first gear are drivingly connected, and the second gear can drive the second rotating shaft to rotate; a first driving member, the first driving member is connected to the first rotating shaft, and the first driving member can drive the first rotating shaft to rotate.

[0011] As an optional embodiment, the second mixing assembly includes: a first screw assembly, which is rotatably connected to the second shell and located in the second mixing chamber; a second screw assembly, which is rotatably connected to the second shell and located in the second mixing chamber, and the first screw assembly and the second screw assembly are arranged at intervals along a second horizontal direction; a second drive assembly, which is arranged in the first shell, and the second drive assembly can drive the first screw assembly and / or the second screw assembly to rotate relative to each other, so that the first screw assembly and the second screw assembly push the material to move along the first horizontal direction, and perform secondary mixing on the mixed material during the pushing process.

[0012] As an optional embodiment, the first screw assembly includes: a first screw, located in the second mixing chamber, the first screw is rotatably connected to the second shell, the first screw extends along the first horizontal direction, the first screw is connected to the second drive assembly, and the first screw can rotate under the drive of the second drive assembly; a first threaded member, sleeved on the first mounting shaft, the first threaded member can rotate with the first mounting shaft, so that the first threaded member pushes the material to move along the extension direction of the first mounting shaft.

[0013] As an optional embodiment, the first screw mixing assembly includes: a first threaded mixing element, which is sleeved on the first screw, and the first threaded mixing element can rotate under the drive of the first screw; a second threaded mixing element, which is sleeved on the first screw, and the second threaded mixing element can rotate under the drive of the first screw, the pitch of the first threaded mixing element is greater than the pitch of the second threaded mixing element, and the first threaded mixing element and the second threaded mixing element are arranged in sequence along the first horizontal direction.

[0014] As an optional embodiment, the second screw assembly includes a second screw, and the second drive assembly includes: a third gear, the third gear is sleeved on the first screw, and the third gear can rotate following the first screw; a fourth gear, the fourth gear is sleeved on the second screw, the fourth gear and the third gear are transmission connected, and the fourth gear can drive the second screw to rotate; a second driving member, the second driving member is connected to the first screw, and the second driving member can drive the first screw to rotate.

[0015] As an optional embodiment, the material mixing device also includes: a connecting shell, located between the first mixing module and the second mixing module, a connecting channel is formed inside the connecting shell, the first discharge port and the second feed port are connected through the connecting channel, and the area of ​​the first discharge port is smaller than the area of ​​the second feed port.

[0016] As an optional implementation, the material mixing device further includes a plurality of the first mixing modules and a plurality of the second mixing modules, and the plurality of the first mixing modules and the plurality of the second mixing modules are alternately arranged along the vertical direction.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] The material mixing device provided in the embodiment of the present application can continuously mix materials. The material enters the first mixing chamber from the first feed port and is initially mixed into a mixture by the first mixing component. The mixture enters the second mixing chamber from the second feed port and is secondary mixed by the second mixing component. After the secondary mixing is completed, the material is discharged through the second discharge port. There is no need to pause or transfer to other devices for mixing between the primary mixing process and the secondary mixing process of the material, which realizes the continuous mixing of the material and improves the efficiency of the material mixing. At the same time, there is no material transfer process, which reduces the loss of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 One of the structural schematic diagrams of the material mixing device provided in the embodiment of the present application;

[0021] Figure 2 The second structural schematic diagram of the material mixing device provided in the embodiment of the present application;

[0022] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0023] Figure 4 The third structural schematic diagram of the material mixing device provided in the embodiment of the present application;

[0024] Figure 5 A schematic diagram of a material flow process of a material mixing device provided in an embodiment of the present application;

[0025] Figure 6A schematic diagram of the structure of a first mixing module provided in an embodiment of the present application;

[0026] Figure 7 for Figure 6 Schematic diagram of the cross section along the BB direction;

[0027] Figure 8 A schematic diagram of the structure of a first mixing component provided in an embodiment of the present application;

[0028] Fig. 9 One of the structural schematic diagrams of the second mixing module provided in the embodiment of the present application;

[0029] Fig.10 for Fig. 9 Schematic diagram of the cross section along CC direction;

[0030] Fig.11 The second structural schematic diagram of the second mixing module provided in the embodiment of the present application;

[0031] Fig.12 for Fig.11 Schematic diagram of the cross section along the DD direction;

[0032] Fig.13 A schematic diagram of the structure of the second mixing component provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 100-material mixing device; 1-first mixing module; 11-first housing; 11a-first mixing chamber; 12-first mixing assembly; 121-first kneading member; 1211-first rotating shaft; 1212-first kneading blade; 1212a-mounting portion; 1212b-blade portion; 122-second kneading member; 123-first driving assembly; 1231-first gear; 1232-second gear; 1233-first driving member; 2-second mixing member Module; 21-second shell; 21a-second mixing chamber; 22-second mixing assembly; 221-first screw assembly; 2211-first mounting shaft; 2212-first threaded member; 22121-first threaded mixing element; 22122-second threaded mixing element; 222-second screw assembly; 223-second drive assembly; 2231-third gear; 2232-fourth gear; 2233-second drive member; 3-connecting shell; 4-feeding bin. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] In this application, the terms "upper", "lower", "top", "bottom", "inner", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0037] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0038] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0040] As a new type of electrode manufacturing technology, dry electrode manufacturing technology has become the focus of research and development in the global battery industry in recent years. Compared with traditional wet technology, dry electrode technology has the following advantages: the entire manufacturing process of dry electrode is environmentally friendly; dry electrode eliminates the baking process after coating, thereby greatly reducing energy consumption; dry electrode manufacturing cost, investment cost, material cost, etc. are all lower than wet process; dry electrode synthesized electrode performance is better; dry electrode process efficiency is greatly improved compared with wet process; dry electrode process compatibility is better.

[0041] There is no need to introduce liquid during the production of dry electrodes. Dry electrode technology is achieved by dry mixing active materials, adhesives and conductive additives in a specific proportion. Under the fiberization of the adhesive, the mixture can form a supportive film, which is then adhered to the current collector through a roller pressing process. The main synthesis processes of dry electrodes include material mixing, material fiberization, material formation of self-supporting film, and composite of film and current collector. The first step of dry electrodes is material mixing, and the uniformity of material mixing will directly affect the quality of the electrode.

[0042] However, in the current dry electrode material mixing process, traditional equipment such as high-speed mixers and airflow mills are mainly used to mix materials. Although equipment such as high-speed mixers and airflow mills can meet production needs to a certain extent, the production model has limitations. Specifically, equipment such as high-speed mixers and airflow mills mainly adopt an intermittent production mode, which requires frequent shutdown and startup during the production process, and the single mixing cycle is long and inefficient, which makes it difficult to meet the current large-scale and continuous production needs, limiting the improvement of production efficiency and increasing production costs.

[0043] In order to solve the above problems, the inventors studied the limitations of existing material mixing devices, improved the existing material mixing devices, and designed a device that can continuously mix materials without replacing the material mixing equipment, thereby preventing the problem of low mixing efficiency caused by the discontinuous material mixing process and achieving the purpose of improving the continuity of the material mixing process.

[0044] Based on this, an embodiment of the present application discloses a material mixing device, which solves the problem of decreased mixing efficiency caused by a discontinuous material mixing process.

[0045] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0046] See also Figures 1 to 4 , Figure 1 This is one of the structural schematic diagrams of the material mixing device 100 provided in the embodiment of the present application. Figure 2 This is a second structural schematic diagram of the material mixing device 100 provided in an embodiment of the present application. Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction, Figure 4The third structural schematic diagram of the material mixing device 100 provided in the embodiment of the present application. The embodiment of the present application provides a material mixing device 100 including: a first mixing module 1, the first mixing module 1 including a first shell 11 and a first mixing component 12, a first mixing chamber 11a is formed inside the first shell 11, the first shell 11 is provided with a first feed port and a first discharge port, the first feed port and the first discharge port are connected to the first mixing chamber 11a, the first feed port and the first discharge port are correspondingly arranged along the vertical direction Z, the first mixing component 12 is located in the first mixing chamber 11a, the first mixing component 12 can mix materials to form a mixture, and the mixture can be discharged from the first discharge port; a second mixing module Block 2, the second mixing module 2 includes a second shell 21 and a second mixing component 22, a second mixing chamber 21a is formed inside the second shell 21, the second shell 21 is provided with a second feed port and a second discharge port, the second feed port and the second discharge port are arranged at intervals along the first horizontal direction X, the second feed port and the second discharge port are connected with the second mixing chamber 21a, the second feed port is connected with the first discharge port, the second mixing component 22 is located in the second mixing chamber 21a, the second mixing component 22 is used to push the mixture to move along the first horizontal direction X to the second discharge port, and perform secondary mixing on the mixture during the pushing process.

[0047] The first mixing module 1 includes a first shell 11, which is used to accommodate the remaining components included in the first mixing module 1. The first shell 11 provides a stable operating space for the remaining components included in the first mixing module 1, and can protect the remaining internal components from being damaged by substances such as dust and moisture, thereby ensuring the effective operation of the first mixing module 1.

[0048] Optionally, the surface of the first shell 11 can be provided with an openable sealing cover. When the components inside the first mixing module 1 need to be replaced, cleaned or repaired, the operator can open the sealing cover without disassembling the entire first shell 11, thereby shortening the maintenance time and reducing the difficulty of operation.

[0049] A first mixing chamber 11a is formed inside the first shell 11 to accommodate the material to be mixed. The first shell 11 is provided with a first feed port and a first discharge port. The first feed port and the first discharge port are connected to the first mixing chamber 11a. The material can enter the first mixing chamber 11a through the first feed port. The first feed port and the first discharge port are correspondingly arranged along the vertical direction Z, so that the material can leave the first mixing chamber 11a through the first discharge port under the action of gravity after preliminary mixing.

[0050] The first mixing component 12 is located in the first mixing chamber 11a, so that the first mixing component 12 can contact the material in the first mixing chamber 11a and mix the material to form a mixture. Optionally, the first mixing component 12 can be a kneading structure, the first mixing component 12 can also be a stirring structure, and the first mixing component 12 can also be a vibration structure to mix the materials, which is not limited in the embodiment of the present application.

[0051] The second mixing module 2 includes a second shell 21, which is used to accommodate the remaining components included in the second mixing module 2. The second shell 21 provides a stable operating space for the remaining components included in the second mixing module 2, and can protect the remaining internal components from being damaged by substances such as dust and moisture, thereby ensuring the effective operation of the second mixing module 2.

[0052] Optionally, the surface of the second shell 21 can be provided with an openable sealing cover. When the components inside the second mixing module 2 need to be replaced, cleaned or repaired, the operator can open the sealing cover without disassembling the entire second shell 21, thereby shortening the maintenance time and reducing the difficulty of operation.

[0053] A second mixing chamber 21a is formed inside the second shell 21 to accommodate the mixture. The second shell 21 is provided with a second feed port and a second discharge port. The second feed port and the second discharge port are connected to the second mixing chamber 21a. The second feed port is connected to the first discharge port. The mixture enters the second mixing chamber 21a after passing through the first discharge port and the second feed port.

[0054] The second feed port and the second discharge port are arranged at intervals along the first horizontal direction X. The second mixing component 22 is located in the second mixing chamber 21a. The second mixing component 22 is used to push the mixture along the first horizontal direction X to the second discharge port, and perform secondary mixing on the mixture during the pushing process. After being pushed to the second discharge port, the secondary mixed material can be discharged from the second mixing chamber 21a from the second discharge port under the action of gravity.

[0055] Optionally, the second mixing component 22 may be a spiral mixing structure, or a vibration structure or the like that can perform secondary mixing of the materials in the process of pushing the materials to move, which is not limited in the embodiments of the present application.

[0056] Specifically, the flow process of the material in the material mixing device 100 can be referred to Figure 5 , Figure 5 Schematic diagram of the material flow process of the material mixing device 100 provided in an embodiment of the present application.

[0057] In this way, the material mixing device 100 provided in the embodiment of the present application can continuously mix materials. The material enters the first mixing chamber 11a from the first feed port and is initially mixed by the first mixing component 12 to form a mixture. The mixture enters the second mixing chamber 21a from the second feed port and is secondary mixed by the second mixing component 22. After the secondary mixing is completed, the material is discharged through the second discharge port. There is no need to pause or transfer to other devices between the primary mixing process and the secondary mixing process of the material, which realizes the continuous mixing of the material and improves the efficiency of the material mixing. At the same time, there is no material transfer process, which reduces the loss of the material.

[0058] See also Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the structure of the first mixing module 1 provided in an embodiment of the present application. Figure 7 for Figure 6 Schematic cross-sectional view along the BB direction. In some embodiments, the first mixing component 12 includes: a first kneading piece 121, the first kneading piece 121 is rotatably connected to the first shell 11 and is located in the first mixing chamber 11a; a second kneading piece 122, the second kneading piece 122 is rotatably connected to the first shell 11 and is located in the first mixing chamber 11a, the first kneading piece 121 and the second kneading piece 122 are arranged along the second horizontal direction Y, a kneading channel is formed between the first kneading piece 121 and the second kneading piece 122, and the kneading channel corresponds to the first discharge port in the vertical direction Z; a first driving component 123, which is disposed in the first shell 11, and the first driving component 123 can drive the first kneading piece 121 and / or the second kneading piece 122 to rotate relative to each other, so that the first kneading piece 121 and the second kneading piece 122 mix the materials.

[0059] Specifically, after the material enters the first mixing chamber 11a through the first feed port, it can contact the first kneading piece 121 and the second kneading piece 122. The first kneading piece 121 and / or the second kneading piece 122 can rotate relatively under the drive of the first driving component 123, so that the material is sheared, squeezed and mixed in the kneading channel between the first kneading piece 121 and the second kneading piece 122, thereby achieving mixing of the material.

[0060] Furthermore, the mixed material after being mixed by the first kneading element 121 and the second kneading element 122 can fall downward under the action of gravity. Since the first discharge port corresponds to the kneading channel, the mixed material can directly fall into the first discharge port and be discharged from the first discharge port.

[0061] See also Figure 8 , Figure 8A schematic diagram of the structure of the first mixing component 12 provided in an embodiment of the present application. In some embodiments, the first kneading member 121 includes: a first rotating shaft 1211, located in the first mixing chamber 11a, the first rotating shaft 1211 is rotatably connected to the first housing 11, the first rotating shaft 1211 extends along the first horizontal direction X, the first rotating shaft 1211 is connected to the first driving component 123, and the first rotating shaft 1211 can rotate under the drive of the first driving component 123; a first kneading blade 1212, the first kneading blade 1212 is disposed on the first rotating shaft 1211, and the first kneading blade 1212 can rotate with the first rotating shaft 1211.

[0062] The first rotating shaft 1211 is arranged in the first mixing chamber 11a and extends along the first horizontal direction X. The first rotating shaft 1211 is rotatably connected to the first shell 11 to avoid friction or obstruction between the first rotating shaft 1211 and the first shell 11, so as to ensure that the first rotating shaft 1211 can rotate freely under the drive of the first driving component 123, and at the same time, the stability of the first rotating shaft 1211 is also ensured.

[0063] The first kneading blade 1212 is disposed on the first rotating shaft 1211 and can rotate along with the rotation of the first rotating shaft 1211. When the first driving assembly 123 is started and drives the first rotating shaft 1211 to rotate, the first kneading blade 1212 also rotates along with the first rotating shaft 1211, thereby kneading, mixing or stirring the material in the first mixing chamber 11a. The provision of the first kneading blade 1212 not only improves the mixing efficiency of the material, but also ensures the uniformity of the material mixing.

[0064] It should be noted that the first kneading element 121 and the second kneading element 122 may have the same structure and working principle. The following mainly describes and introduces the first kneading element 121, and does not repeat the structure and working principle of the second kneading element 122.

[0065] See also Figure 8 In some embodiments, a plurality of first kneading blades 1212 are provided on the first rotating shaft 1211, and the plurality of first kneading blades 1212 are arranged at intervals along the extension direction of the first rotating shaft 1211, thereby ensuring that the length of the first rotating shaft 1211 is fully utilized and that the material can be more comprehensively mixed in the mixing chamber.

[0066] When the first driving assembly 123 is started and drives the first rotating shaft 1211 to rotate, the first kneading blades 1212 arranged at intervals will knead, mix or stir the materials in turn, thereby improving the mixing efficiency. At the same time, the first kneading blades 1212 can be evenly distributed on the first rotating shaft 1211 to improve the mixing uniformity of the materials, so that the first mixing assembly 12 can mix the materials more evenly.

[0067] See also Figure 8 In some embodiments, the first kneading blade 1212 includes: a mounting portion 1212a, which is sleeved on the first rotating shaft 1211; a blade portion 1212b, wherein the blade portions 1212b are multiple, and the multiple blade portions 1212b are spirally arranged on the mounting portion 1212a, and the multiple blade portions 1212b are arranged around the outer surface of the first rotating shaft 1211.

[0068] The mounting portion 1212a is the portion connecting the first kneading blade 1212 and the first rotating shaft 1211, and the mounting portion 1212a is sleeved on the first rotating shaft 1211. Optionally, the mounting portion 1212a may be provided with a hole or a groove matching the first rotating shaft 1211, so that the mounting portion 1212a can be firmly fixed on the first rotating shaft 1211.

[0069] The blade portion 1212b is the working part of the first kneading blade 1212, and the blade portion 1212b can contact the material and knead, mix and stir the material. There are multiple blade portions 1212b, thereby increasing the kneading and stirring efficiency and effect of the first kneading blade 1212.

[0070] The plurality of blades 1212b are spirally arranged on the mounting portion 1212a, and the spiral blades 1212b can rotate in the material and generate rotation and shear force on the material, thereby more effectively kneading or stirring the material and improving the mixing effect of the material. The plurality of blades 1212b are arranged around the outer surface of the first rotating shaft 1211, that is, the plurality of blades 1212b are distributed in a circular shape with the first rotating shaft 1211 as the center, so as to ensure that the material can be uniformly acted upon by the first kneading blade 1212 during the kneading or stirring process, so that the material can be more comprehensively mixed.

[0071] See also Figure 6 In some embodiments, the second kneading member 122 includes a second rotating shaft, and the first driving assembly 123 includes: a first gear 1231, the first gear 1231 is sleeved on the first rotating shaft 1211, and the first gear 1231 can rotate with the first rotating shaft 1211; a second gear 1232, the second gear 1232 is sleeved on the second rotating shaft, the second gear 1232 and the first gear 1231 are transmission-connected, and the second gear 1232 can drive the second rotating shaft to rotate; a first driving member 1233, the first driving member 1233 is connected to the first rotating shaft 1211, and the first driving member 1233 can drive the first rotating shaft 1211 to rotate.

[0072] Specifically, the first driving member 1233 is connected to the first rotating shaft 1211. When the first material mixing assembly 12 needs to mix materials, the first driving member 1233 can be started and drive the first rotating shaft 1211 to rotate, thereby driving the first gear 1231 sleeved on the first rotating shaft 1211 to rotate. The first gear 1231 is in transmission connection with the second gear 1232, so that the second gear 1232 can rotate with the first gear 1231, and the rotation directions of the first gear 1231 and the second gear 1232 are opposite. The rotation of the second gear 1232 can drive the second rotating shaft that penetrates the second gear 1232 to rotate, so as to ensure that the first rotating shaft 1211 and the second rotating shaft rotate relative to each other.

[0073] Optionally, the first gear 1231 and the second gear 1232 may be connected via a belt transmission, a meshing transmission, or a chain transmission, which is not limited in the embodiment of the present application.

[0074] Optionally, the first driving member 1233 may be an electric motor, a hydraulic motor or other device capable of generating rotational power, which is not limited in the embodiment of the present application.

[0075] In this way, the first rotating shaft 1211 rotates in opposite directions to the second rotating shaft, thereby ensuring that the first kneading element 121 rotates in opposite directions to the second kneading element 122, so that the material is sheared, squeezed and mixed in the kneading channel between the first kneading element 121 and the second kneading element 122, thereby achieving preliminary mixing of the material.

[0076] See also Fig. 9 and Fig.10 , Fig. 9 This is one of the structural schematic diagrams of the second mixing module 2 provided in the embodiment of the present application, Fig.10 for Fig. 9 In some embodiments, the second mixing assembly 22 includes: a first screw assembly 221, the first screw assembly 221 is rotatably connected to the second housing 21 and is located in the second mixing chamber 21a; a second screw assembly 222, the second screw assembly 222 is rotatably connected to the second housing 21 and is located in the second mixing chamber 21a, the first screw assembly 221 and the second screw assembly 222 are arranged at intervals along the second horizontal direction Y; a second drive assembly 223, which is disposed on the first housing 11, and the second drive assembly 223 can drive the first screw assembly 221 and / or the second screw assembly 222 to rotate relative to each other, so that the first screw assembly 221 and the second screw assembly 222 push the material to move along the first horizontal direction X, and perform secondary mixing on the mixed material during the pushing process.

[0077] Specifically, after the material enters the second mixing chamber 21a through the second feed port, it can contact the first screw assembly 221 and the second screw assembly 222. The first screw assembly 221 and / or the second screw assembly 222 can rotate relative to each other under the drive of the second drive assembly 223, so that the first screw assembly 221 and the second screw assembly 222 can exert a force on the material through reverse rotation, thereby achieving secondary mixing of the mixed material.

[0078] Furthermore, the structure of the first screw assembly 221 and the second screw assembly 222 can push the mixture along the first horizontal direction X to the second discharge port during rotation, and realize secondary mixing of the mixture in the process of pushing the material. The secondary mixed material can be discharged from the second discharge port under the action of gravity.

[0079] See also Fig.11 and Fig.12 , Fig.11 The second structural diagram of the second mixing module 2 provided in the embodiment of the present application is as follows: Fig.12 for Fig.11 In some embodiments, the first screw assembly 221 includes: a first mounting shaft 2211, which is located in the second mixing chamber 21a, the first mounting shaft 2211 is rotatably connected to the second housing 21, the first mounting shaft 2211 extends along the first horizontal direction X, the first mounting shaft 2211 is connected to the second driving assembly 223, and the first mounting shaft 2211 can rotate under the drive of the second driving assembly 223; a first threaded member 2212, which is sleeved on the first mounting shaft 2211, and the first threaded member 2212 can rotate with the first mounting shaft 2211, so that the first threaded member 2212 pushes the mixture to move along the extension direction of the first mounting shaft 2211.

[0080] The first mounting shaft 2211 is disposed in the second mixing chamber 21a and extends along the first horizontal direction X. The first mounting shaft 2211 is rotatably connected to the second shell 21 to avoid friction or obstruction between the first mounting shaft 2211 and the second shell 21, so as to ensure that the first mounting shaft 2211 can rotate freely under the drive of the second driving assembly 223, while also ensuring the stability of the first mounting shaft 2211.

[0081] The first threaded member 2212 is disposed on the first installation shaft 2211 and can rotate along with the rotation of the first installation shaft 2211. When the second drive assembly 223 is started and drives the first installation shaft 2211 to rotate, the first threaded member 2212 also rotates along with the first installation shaft 2211, so that the spiral structure of the first screw assembly 221 contacts the mixed material and mixes or stirs the mixed material in the second mixing chamber 21a. The provision of the first threaded member 2212 not only improves the mixing efficiency of the materials, but also ensures the uniformity of the material mixing.

[0082] It should be noted that the first screw assembly 221 and the second screw assembly 222 may have the same structure and working principle, respectively. The following mainly describes and introduces the first screw assembly 221, and does not repeat the structure and working principle of the second screw assembly 222.

[0083] See also Fig.13 , Fig.13 A schematic diagram of the structure of the second mixing component 22 provided in an embodiment of the present application. In some embodiments, the first threaded member 2212 includes: a first threaded mixing element 22121, which is sleeved on the first mounting shaft 2211, and the first threaded mixing element 22121 can rotate under the drive of the first mounting shaft 2211; a second threaded mixing element 22122, which is sleeved on the first mounting shaft 2211, and the second threaded mixing element 22122 can rotate under the drive of the first mounting shaft 2211, the pitch of the first threaded mixing element 22121 is greater than the pitch of the second threaded mixing element 22122, and the first threaded mixing element 22121 and the second threaded mixing element 22122 are arranged in sequence along the first horizontal direction X.

[0084] The pitch of the first threaded mixing element 22121 is greater than the pitch of the second threaded mixing element 22122. The different pitches of the first threaded mixing element 22121 and the second threaded mixing element 22122 will affect the shear force and mixing efficiency when mixing materials. The first threaded mixing element 22121 can provide a stronger shear force and a larger mixing space during the mixing process due to its larger pitch, while the second threaded mixing element 22122 can mix the materials more finely.

[0085] Furthermore, the first threaded mixing element 22121 and the second threaded mixing element 22122 are arranged in sequence from the second feed port to the second discharge port, so that after the material enters the mixing assembly from the second feed port, it will first pass through the first threaded mixing element 22121, then pass through the second threaded mixing element 22122, and finally be discharged from the second discharge port, thereby allowing the material to gradually achieve an ideal mixing effect during the mixing process.

[0086] In this way, the first threaded member 2212 achieves effective mixing of materials through the synergistic effect of the first threaded mixing element 22121 and the second threaded mixing element 22122 with different pitches, improves the mixing efficiency of the materials, and ensures the mixing quality of the materials. At the same time, through the reasonable arrangement sequence of the first threaded mixing element 22121 and the second threaded mixing element 22122, the materials can gradually reach an ideal mixing state during the mixing process.

[0087] See also Fig. 9In some embodiments, the second screw assembly 222 includes a second screw, and the second driving assembly 223 includes: a third gear 2231, the third gear 2231 is sleeved on the first mounting shaft 2211, and the third gear 2231 can rotate with the first mounting shaft 2211; a fourth gear 2232, the fourth gear 2232 is sleeved on the second screw, the fourth gear 2232 and the third gear 2231 are meshed, and the fourth gear 2232 can drive the second screw to rotate; a second driving member 2233, the second driving member 2233 is connected to the first mounting shaft 2211, and the second driving member 2233 can drive the first mounting shaft 2211 to rotate.

[0088] Specifically, the second driving member 2233 is connected to the first installation shaft 2211. When the second mixing assembly 22 needs to mix materials, the second driving member 2233 can be started and drive the first installation shaft 2211 to rotate, thereby driving the third gear 2231 sleeved on the first installation shaft 2211 to rotate. The third gear 2231 is in transmission connection with the fourth gear 2232, so that the fourth gear 2232 can rotate with the third gear 2231, and the rotation direction of the third gear 2231 is opposite to that of the fourth gear 2232. The rotation of the fourth gear 2232 can drive the second screw rod penetrating the fourth gear 2232 to rotate, so as to ensure that the first installation shaft 2211 and the second screw rod rotate in opposite directions.

[0089] Optionally, the third gear 2231 and the fourth gear 2232 may be driven by a belt, by meshing, or by a chain, which is not limited in the embodiment of the present application.

[0090] Optionally, the second driving member 2233 may be an electric motor, a hydraulic motor or other device capable of generating rotational power, which is not limited in the embodiment of the present application.

[0091] In this way, the rotation direction of the first mounting shaft 2211 is opposite to that of the second screw, thereby ensuring that the rotation directions of the first threaded mixing assembly and the second threaded mixing assembly are opposite, so that the material can be pushed to the second discharge port during the rotation of the first threaded mixing assembly and the second threaded mixing assembly, and be subjected to shearing, extrusion and mixing during the pushing process, thereby realizing secondary mixing of the material.

[0092] Please refer to Figure 1 In some embodiments, the material mixing device 100 further includes: a connecting shell 3, located between the first mixing module 1 and the second mixing module 2, a connecting channel is formed inside the connecting shell 3, the first discharge port and the second feed port are connected through the connecting channel, and the area of ​​the first discharge port is smaller than the area of ​​the second feed port.

[0093] The connecting shell 3 is located between the first mixing module 1 and the second mixing module 2, and the material transfer is achieved through the connecting channel inside the connecting shell 3. Since the area of ​​the first discharge port is smaller than the area of ​​the second feed port, when the material flows out of the first mixing module 1, due to the small area of ​​the discharge port, a higher flow rate and pressure may be generated, and when the material enters the second mixing module 2, due to the large area of ​​the second feed port, the material can be more easily received and dispersed.

[0094] In this way, the connecting shell 3 ensures the movement route of the material from the first discharge port to the second feed port, prevents waste of material in the process of moving from the first mixing module 1 to the second mixing module 2, and ensures that all materials flowing out of the first discharge port can enter the second feed port to achieve secondary mixing of the materials.

[0095] See also Figure 1 In some embodiments, the material mixing device 100 further includes a plurality of first mixing modules 1 and a plurality of second mixing modules 2, and the plurality of first mixing modules 1 and the plurality of second mixing modules 2 are alternately arranged along the vertical direction Z.

[0096] Specifically, the number of first mixing modules 1 and second mixing modules 2 in the material mixing device 100 can be set according to actual production needs, and multiple first mixing modules 1 and multiple second mixing modules 2 are alternately arranged along the vertical direction Z, so that the structure of the material mixing device 100 is miniaturized and the reasonable arrangement of the first mixing modules 1 and the second mixing modules 2 is ensured.

[0097] Meanwhile, a connecting shell 3 may be provided between adjacent mixing modules, so that the material can enter the mixing module below after being discharged from the upper mixing module. Optionally, a feed bin 4 may be provided at the feed inlet of the uppermost mixing module along the vertical direction Z, so as to ensure that the external material can enter the mixing module along a predetermined route when being input into the material mixing device 100, thereby preventing the material from being wasted when entering the mixing module.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A material mixing device, characterized in that: include: A first mixing module, the first mixing module comprises a first shell and a first mixing component, a first mixing chamber is formed inside the first shell, the first shell is provided with a first feed port and a first discharge port, the first feed port and the first discharge port are connected to the first mixing chamber, the first feed port and the first discharge port are correspondingly arranged in the vertical direction, the first mixing component is located in the first mixing chamber, the first mixing component can mix materials to form a mixture, and the mixture can be discharged from the first discharge port; A second mixing module, the second mixing module includes a second shell and a second mixing component, a second mixing chamber is formed inside the second shell, the second shell is provided with a second feed port and a second discharge port, the second feed port and the second discharge port are arranged at intervals along a first horizontal direction, the second feed port and the second discharge port are connected to the second mixing chamber, the second feed port is connected to the first discharge port, the second mixing component is located in the second mixing chamber, the second mixing component is used to push the mixture to move along the first horizontal direction to the second discharge port, and perform secondary mixing on the mixture during the pushing process.

2. The material mixing device according to claim 1, characterized in that: The first mixing component comprises: a first kneading member, the first kneading member being rotatably connected to the first shell and being located in the first mixing chamber; a second kneading piece, the second kneading piece is rotatably connected to the first shell and is located in the first mixing chamber, the first kneading piece and the second kneading piece are arranged along a second horizontal direction, a kneading channel is formed between the first kneading piece and the second kneading piece, and the kneading channel corresponds to the first discharge port in the vertical direction; The first driving component is arranged on the first shell, and the first driving component can drive the first kneading element and / or the second kneading element to rotate relative to each other, so that the first kneading element and the second kneading element mix the material.

3. The material mixing device according to claim 2, characterized in that: The first kneading element comprises: a first rotating shaft, located in the first mixing chamber, the first rotating shaft being rotatably connected to the first shell, the first rotating shaft extending along a first horizontal direction, the first rotating shaft being connected to the first driving assembly, and the first rotating shaft being rotatable under the drive of the first driving assembly; The first kneading blade is disposed on the first rotating shaft, and the first kneading blade can rotate along with the first rotating shaft.

4. The material mixing device according to claim 3, characterized in that: A plurality of first kneading blades are disposed on the first rotating shaft, and the plurality of first kneading blades are arranged at intervals along an extending direction of the first rotating shaft.

5. The material mixing device according to claim 3, characterized in that: The first kneading blade comprises: A mounting portion, sleeved on the first rotating shaft; The blade part is multiple, and the multiple blade parts are spirally arranged on the mounting part, and the multiple blade parts are arranged around the outer surface of the first rotating shaft.

6. The material mixing device according to claim 3, characterized in that: The second kneading member includes a second rotating shaft, and the first driving assembly includes: A first gear, wherein the first gear is sleeved on the first rotating shaft, and the first gear can rotate along with the first rotating shaft; a second gear, the second gear being sleeved on the second rotating shaft, the second gear being transmission-connected to the first gear, and the second gear being capable of driving the second rotating shaft to rotate; A first driving member, wherein the first driving member is connected to the first rotating shaft, and the first driving member can drive the first rotating shaft to rotate.

7. The material mixing device according to claim 1, characterized in that: The second mixing component comprises: a first screw assembly, the first screw assembly being rotatably connected to the second housing and being located in the second mixing chamber; a second screw assembly, the second screw assembly being rotatably connected to the second housing and being located in the second mixing chamber, the first screw assembly and the second screw assembly being arranged at intervals along a second horizontal direction; A second drive assembly is arranged on the first shell, and the second drive assembly can drive the first screw assembly and / or the second screw assembly to rotate relative to each other, so that the first screw assembly and the second screw assembly push the material to move along the first horizontal direction, and perform secondary mixing on the mixed material during the pushing process.

8. The material mixing device according to claim 7, characterized in that: The first screw assembly comprises: a first installation shaft, located in the second mixing chamber, the first installation shaft being rotatably connected to the second shell, the first installation shaft extending along the first horizontal direction, the first installation shaft being connected to the second driving assembly, and the first installation shaft being rotatable under the drive of the second driving assembly; The first threaded component is sleeved on the first installation shaft, and the first threaded component can rotate along with the first installation shaft, so that the first threaded component pushes the mixture to move along the extension direction of the first installation shaft.

9. The material mixing device according to claim 8, characterized in that: The first threaded member comprises: A first threaded mixing element, sleeved on the first mounting shaft, wherein the first threaded mixing element can rotate under the drive of the first mounting shaft; The second threaded mixing element is sleeved on the first installation shaft. The second threaded mixing element can rotate under the drive of the first installation shaft. The pitch of the first threaded mixing element is greater than the pitch of the second threaded mixing element. The first threaded mixing element and the second threaded mixing element are arranged in sequence along the first horizontal direction.

10. The material mixing device according to claim 8, characterized in that: The second screw assembly includes a second screw, and the second drive assembly includes: A third gear, the third gear is sleeved on the first installation shaft, and the third gear can rotate along with the first installation shaft; a fourth gear, wherein the fourth gear is sleeved on the second screw rod, the fourth gear is transmission-connected to the third gear, and the fourth gear can drive the second screw rod to rotate; A second driving member, wherein the second driving member is connected to the first installation shaft, and the second driving member can drive the first installation shaft to rotate.

11. The material mixing device according to any one of claims 1 to 10, characterized in that: The material mixing device further includes a plurality of the first mixing modules and a plurality of the second mixing modules, and the plurality of the first mixing modules and the plurality of the second mixing modules are alternately arranged along the vertical direction.

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