Material mixing mechanism

Abstract

The material mixing mechanism comprises at least two kneading and mixing modules, each kneading and mixing module comprises a shell and a mixing assembly, a mixing cavity is formed in the shell, the shell is provided with a feeding port and a discharging port, the feeding port and the discharging port are communicated with the mixing cavity, the feeding port and the discharging port are correspondingly arranged in the vertical direction, and the mixing assembly is arranged in the mixing cavity; the mixing assembly is located in the mixing cavity, the mixing assembly can mix materials to form a mixture, the mixture is discharged from the discharging port, the at least two kneading and mixing modules are arranged in the vertical direction, and the discharging port of the kneading and mixing module located on the upper portion communicates with the feeding port of the kneading and mixing module located on the lower portion. According to the material mixing mechanism provided by the embodiment of the invention, continuous mixing of the materials can be realized, and the material mixing continuity is improved while the material mixing effect is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery manufacturing, and in particular to a material mixing mechanism. BACKGROUND

[0002] The dry electrode technology is an innovative production method of lithium battery electrodes, and no liquid is introduced in the production of the dry electrode. The dry electrode technology is realized by dry mixing of active material, binder and conductive additive in a specific ratio. Under the fiberization of the binder, the mixture can form a self-supporting film, which is then attached to the current collector through a rolling process. The main synthesis process of the dry electrode includes material mixing, material fiberization, material forming a self-supporting film, film and current collector compounding, etc. The primary 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 high-speed mixers and jet mills and the like. The high-speed mixers and jet mills and the like are limited to intermittent production mode, and the single mixing period is long, which is difficult to adapt to large-scale and continuous production requirements. CONTENT OF THE INVENTION

[0004] The application embodiment discloses a material mixing mechanism which can continuously and uniformly mix materials and solves the problem of discontinuous material mixing process and the need to replace the mixing equipment.

[0005] In order to achieve the above purpose, the application embodiment provides a material mixing mechanism, which comprises at least two kneading mixing modules, the kneading mixing module comprises a shell and a mixing assembly, a mixing cavity is formed in the interior of the shell, the shell is provided with a feeding port and a discharging port, the feeding port and the discharging port are communicated with the mixing cavity, the feeding port and the discharging port are correspondingly arranged along the vertical direction, the mixing assembly is located in the mixing cavity, the mixing assembly can mix the materials to form mixed materials, and the mixed materials are discharged from the discharging port, the at least two kneading mixing modules are arranged along the vertical direction, and the discharging port of the upper kneading mixing module is communicated with the feeding port of the lower kneading mixing module.

[0006] As an optional implementation, the mixing assembly further comprises a first kneading member rotatably connected to the housing and located in the mixing cavity; a second kneading member rotatably connected to the housing and located in the mixing cavity, the first and second kneading members being spaced apart along the width direction of the housing, a kneading channel being formed between the first and second kneading members and corresponding to the discharge port in the vertical direction; and a driving assembly arranged in the housing, the driving assembly being capable of driving the first and / or second kneading member to rotate relatively to mix the material.

[0007] As an optional implementation, the first kneading member comprises a first rotating shaft located in the mixing cavity, the first rotating shaft being rotatably connected to the housing, the first rotating shaft extending along the length direction of the housing, the first rotating shaft being connected to the driving assembly and being capable of rotating under the driving of the driving assembly; and a first kneading paddle arranged on the first rotating shaft and capable of rotating with the first rotating shaft.

[0008] As an optional implementation, the first rotating shaft is provided with a plurality of first kneading paddles, the plurality of first kneading paddles being spaced apart along the extension direction of the first rotating shaft.

[0009] As an optional implementation, the first kneading paddle comprises a mounting portion sleeved on the first rotating shaft, and a plurality of blade portions arranged on the mounting portion in a spiral manner, the plurality of blade portions being arranged around the outer surface of the first rotating shaft.

[0010] As an optional implementation, the second kneading member comprises a second rotating shaft located in the mixing cavity, the second rotating shaft being rotatably connected to the housing, the second rotating shaft extending along the length direction of the housing, the second rotating shaft being connected to the driving assembly and being capable of rotating under the driving of the driving assembly; and a second kneading paddle arranged on the second rotating shaft and capable of rotating with the second rotating shaft.

[0011] As an optional implementation, the driving assembly comprises a first gear sleeved on the first rotating shaft, the first gear being capable of rotating with the first rotating shaft; a second gear sleeved on the second rotating shaft, the second gear being in transmission connection with the first gear, the second gear being capable of driving the second rotating shaft to rotate; and a driving member connected to the first rotating shaft, the driving member being capable of driving the first rotating shaft to rotate.

[0012] As an optional implementation, the driving assembly further comprises a coupling sleeved on an output shaft of the driving member, the other end of the coupling being sleeved on the first rotating shaft, the coupling being used to drive the first rotating shaft to rotate with the output shaft of the driving member.

[0013] As an optional implementation, the extending directions of the first rotating shafts in two adjacent kneading mixing modules have an included angle; or the extending directions of the first rotating shafts in two adjacent kneading mixing modules are the same.

[0014] As an optional implementation, the material mixing mechanism further comprises a feeding shell located at the feeding port of the kneading mixing module located at the uppermost position in the vertical direction, the feeding shell being internally formed with a feeding channel.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] The material mixing mechanism provided by the application can continuously mix materials. The materials enter a mixing cavity through a feeding port and are preliminarily mixed by a mixing assembly. After the preliminary mixing, the materials enter a second mixing cavity through a second feeding port and are secondarily mixed by a second mixing assembly. After the secondary mixing, the materials are discharged through a second discharging port. The primary mixing process and the secondary mixing process of the materials do not need to be paused or transferred to other devices, the continuous mixing of the materials is realized, the efficiency of the material mixing is improved, and the material transfer process is avoided, thereby reducing the material loss. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a material mixing mechanism provided by an embodiment of the application;

[0019] Figure 2Structure schematic view of the kneading and mixing module provided in the embodiment of the present application;

[0020] Figure 3 Structure schematic view of the kneading and mixing module provided in the embodiment of the present application;

[0021] Figure 4 Structure schematic view of the kneading and mixing module provided in the embodiment of the present application; Figure 3 Structure schematic view of the kneading and mixing module provided in the embodiment of the present application;

[0022] Figure 5 Structure schematic view of the kneading and mixing module provided in the embodiment of the present application;

[0023] Figure 6 Structure schematic view of the kneading and mixing module provided in the embodiment of the present application;

[0024] Explanation of reference signs:

[0025] 100 - material mixing mechanism; 1 - kneading and mixing module; 11 - shell; 11a - mixing cavity; 11b - feeding port; 12 - mixing assembly; 121 - first kneading member; 1211 - first rotating shaft; 1212 - first kneading paddle; 1212a - mounting portion; 1212b - blade portion; 122 - second kneading member; 1221 - second rotating shaft; 1222 - second kneading paddle; 123 - driving assembly; 1231 - first gear; 1232 - second gear; 1233 - driving member; 1234 - coupling; 2 - feeding shell; 2a - feeding channel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0027] In the present application, the terms "upper", "lower", "top", "bottom", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship 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.

[0028] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0029] In addition, the terms "mount", "set", "provided with", "connected", "linked" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0030] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0031] As a new type of electrode manufacturing technology, dry electrode technology has become the focus of research and development in the global battery industry in recent years. Compared with the traditional wet electrode technology, the dry electrode technology has the following advantages: the entire manufacturing process of the dry electrode is environmentally friendly; the dry electrode eliminates the baking process after coating, thereby greatly reducing energy consumption; the manufacturing cost, investment cost and material cost of the dry electrode are all reduced compared with the wet process; the electrode sheet synthesized by the dry electrode has better performance; the dry electrode process has greatly improved efficiency; and the dry electrode process has better compatibility.

[0032] The dry electrode does not need to introduce liquid during production. The dry electrode technology realizes the dry mixing of active material, binder and conductive additive in a specific proportion. Under the fiberization effect of the binder, the mixture can form a self-supporting film, which is then attached to the current collector through a rolling process. The main synthesis process of the dry electrode includes material mixing, material fiberization, material forming a self-supporting film, and film and current collector compounding. The first step of the dry electrode is material mixing, and the uniformity of material mixing will directly affect the quality of the electrode.

[0033] However, in the current dry electrode material mixing process, traditional equipment such as high-speed mixers and jet mills are mainly used for material mixing. Although the high-speed mixer and the jet mill and other equipment can meet the production needs to a certain extent, the production mode has limitations. Specifically, the high-speed mixer and the jet mill and other equipment mainly adopt an intermittent production mode, which needs to be frequently stopped and started during the production process, and the single mixing period is long, which is low in efficiency and difficult to meet the current large-scale and continuous production demand, limiting the improvement of production efficiency and increasing the production cost.

[0034] In order to solve the above problems, the inventor studies the limitations of the existing material mixing mechanism, improves the existing material mixing mechanism, and designs a mechanism that can continuously mix materials without replacing the mixing device, thereby preventing the problem of low mixing efficiency caused by discontinuous material mixing process, and achieving the purpose of improving the continuity of the material mixing process.

[0035] Based on this, the embodiment of the application discloses a material mixing mechanism, which solves the problem of low mixing efficiency caused by discontinuous material mixing process.

[0036] The technical solutions of the application will be further described below with reference to the embodiments and drawings.

[0037] Please refer to Figure 1 and Figure 2 , Figure 1 the structural schematic diagram of the material mixing mechanism 100 provided by the embodiment of the application, Figure 2 the structural schematic diagram of the kneading mixing module 1 provided by the embodiment of the application, the embodiment of the application provides a material mixing mechanism 100, which comprises: at least two kneading mixing modules 1, the kneading mixing module 1 comprises a shell 11 and a mixing assembly 12, the inside of the shell 11 is formed with a mixing cavity 11a, the shell 11 is provided with a feeding port 11b and a discharging port, the feeding port 11b and the discharging port are communicated with the mixing cavity 11a, the feeding port 11b and the discharging port are correspondingly arranged along the vertical direction, the mixing assembly 12 is located in the mixing cavity 11a, the mixing assembly 12 can mix materials to form mixed materials and make the mixed materials discharged from the discharging port, the at least two kneading mixing modules 1 are arranged along the vertical direction, and the discharging port of the upper kneading mixing module 1 is communicated with the feeding port of the lower kneading mixing module 1.

[0038] The kneading mixing module 1 comprises the shell 11, the shell 11 is used for accommodating the remaining components included in the kneading mixing module 1, the shell 11 provides a stable operation space for the remaining components included in the kneading mixing module 1, can protect the remaining components inside from being damaged by dust, water and other substances, thereby ensuring the effective operation of the kneading mixing module 1.

[0039] Optionally, the surface of the shell 11 can be provided with an openable sealing cover, when it is necessary to replace, clean or maintain the components inside the kneading mixing module 1, the sealing cover can be opened by the operator, without disassembling the whole shell 11, thereby shortening the maintenance time and reducing the operation difficulty.

[0040] The inside of the shell 11 is formed with a mixing cavity 11a to accommodate the material to be mixed. The shell 11 is provided with an inlet 11b and an outlet which are communicated with the mixing cavity 11a. The material can enter the mixing cavity 11a through the inlet 11b. The inlet 11b and the outlet are correspondingly arranged in the vertical direction, so that the material can leave the mixing cavity 11a through the outlet after being preliminarily mixed by gravity.

[0041] The mixing assembly 12 is located in the mixing cavity 11a, so that the mixing assembly 12 can contact the material in the mixing cavity 11a and mix the material to form a mixture. Optionally, the mixing assembly 12 can be a kneading structure, or a stirring structure, or a vibrating structure for preliminary mixing of the material. The present application does not limit the embodiment.

[0042] Specifically, the number of the kneading mixing modules 1 in the material mixing mechanism 100 can be set according to actual production needs. The plurality of kneading mixing modules 1 are arranged in the vertical direction. The outlet of the upper kneading mixing module 1 is communicated with the outlet of the lower kneading mixing module 1, so that the material can enter the mixing cavity 11a from the inlet 11b of the upper kneading mixing module 1, and then enter the lower kneading mixing module 1 through the outlet of the upper kneading mixing module 1 after being preliminarily mixed by the upper kneading mixing module 1, and then be mixed again in the lower kneading mixing module 1.

[0043] The plurality of kneading mixing modules 1 are arranged in the vertical direction, so that the vertical space is used more effectively, and the unnecessary connecting components and transmission paths are reduced to miniaturize the structure of the material mixing mechanism 100, and ensure the reasonable arrangement of the plurality of kneading mixing modules 1. At the same time, the arrangement of the plurality of kneading mixing modules 1 in the vertical direction also ensures that the material can be transferred between different modules, thereby improving the mixing efficiency.

[0044] Therefore, the material mixing mechanism 100 provided by the present application can continuously mix the material. The material enters the mixing cavity 11a through the inlet 11b and is preliminarily mixed by the mixing assembly 12. After the preliminary mixing, the material is discharged through the outlet and enters the mixing cavity of the lower kneading mixing module 1 through the inlet 11b, and is mixed again by the mixing assembly 12. After the secondary mixing, the material is discharged through the outlet of the lower kneading mixing module 1. The material does not need to stop or be transferred to other devices between the primary mixing process and the secondary mixing process, so that the continuous mixing of the material is realized, the efficiency of the material mixing is improved, and the material transfer process is avoided, thereby reducing the loss of the material.

[0045] Please refer to Figure 3 and Figure 4 , Figure 3Figure 2 is a structural schematic diagram of a kneading and mixing module 1 according to an embodiment of the present application, Figure 4 For Figure 3 Figure 2 is a structural schematic diagram of a kneading and mixing module 1 according to an embodiment of the present application, In some embodiments, the mixing assembly 12 further comprises: a first kneading member 121 rotatably connected to the housing 11 and located in the mixing cavity 11a; a second kneading member 122 rotatably connected to the housing 11 and located in the mixing cavity 11a, the first kneading member 121 and the second kneading member 122 are arranged in a spaced manner along the width direction of the housing, and a kneading channel is formed between the first kneading member 121 and the second kneading member 122, the kneading channel corresponds to the discharge port in the vertical direction; and a driving assembly 123 arranged on the housing 11, the driving assembly 123 is capable of driving the first kneading member 121 and / or the second kneading member 122 to rotate relatively, so that the first kneading member 121 and the second kneading member 122 mix the material.

[0046] Specifically, after the material enters the mixing cavity 11a through the feeding port 11b, the material can contact the first kneading member 121 and the second kneading member 122, and the first kneading member 121 and the second kneading member 122 can rotate in opposite directions under the driving of the driving assembly 123, so that the material in the kneading channel between the first kneading member 121 and the second kneading member 122 is subjected to shearing, extrusion and mixing, thereby realizing the preliminary mixing of the material.

[0047] Further, the material after preliminary mixing by the first kneading member 121 and the second kneading member 122 can fall downward under the action of gravity, and since the discharge port corresponds to the kneading channel, the preliminarily mixed material can directly fall into the discharge port and be discharged from the discharge port.

[0048] Optionally, the first kneading member 121 and the second kneading member 122 can be blade kneading members, so that the blades can produce shearing, extrusion and mixing effects when rotating. The first kneading member 121 and the second kneading member 122 can also be kneading blocks, which are composed of multiple pieces of interlaced kneading discs connected together, and shearing and mixing areas are formed between the kneading discs. The first kneading member 121 and the second kneading member 122 can also be other combined kneading members, which are not limited in the embodiments of the present application.

[0049] Please refer to Figure 3 and Figure 4In some embodiments, the first kneading member 121 comprises a first rotating shaft 1211 located in the mixing cavity 11a, the first rotating shaft 1211 being rotatably connected to the shell 11, the first rotating shaft 1211 extending along the length direction of the shell, the first rotating shaft 1211 being connected to the driving assembly 123, and the first rotating shaft 1211 being capable of rotating under the driving of the driving assembly 123; and a first kneading paddle 1212 arranged on the first rotating shaft 1211, the first kneading paddle 1212 being capable of rotating along with the first rotating shaft 1211.

[0050] The first rotating shaft 1211 is arranged in the mixing cavity 11a and extends along the length direction of the shell, the first rotating shaft 1211 being rotatably connected to the shell 11, so as to avoid friction or obstruction between the first rotating shaft 1211 and the shell 11, thereby ensuring that the first rotating shaft 1211 can freely rotate under the driving of the driving assembly 123 and also ensuring the stability of the first rotating shaft 1211.

[0051] The first kneading paddle 1212 is arranged on the first rotating shaft 1211 and can rotate along with the rotation of the first rotating shaft 1211. Optionally, the first kneading paddle 1212 and the first rotating shaft 1211 can be fixed by welding, spline or buckle, so that the first kneading paddle 1212 can rotate along with the first rotating shaft 1211.

[0052] Specifically, when the driving assembly 123 is started to drive the first rotating shaft 1211 to rotate, the first kneading paddle 1212 contacts the material and rotates along with the first rotating shaft 1211, so as to knead, mix or stir the material in the mixing cavity 11a. The arrangement of the first kneading paddle 1212 not only improves the mixing efficiency of the material, but also ensures the uniformity of the material mixing.

[0053] Please refer to Figure 3 and Figure 4 In some embodiments, a plurality of first kneading paddles 1212 are arranged on the first rotating shaft 1211, the plurality of first kneading paddles 1212 being arranged at intervals along the extension direction of the first rotating shaft 1211, so as to ensure that the length of the first rotating shaft 1211 is fully utilized and also ensure that the material can be more fully mixed in the mixing cavity 11a.

[0054] Meanwhile, the plurality of first kneading paddles 1212 are arranged at intervals along the extension direction of the first rotating shaft 1211, so that a plurality of mixing areas are formed in the mixing cavity 11a, and each first kneading paddle 1212 can play a role of kneading, mixing or stirring in the corresponding mixing area.

[0055] When the driving assembly 123 is started and the first rotating shaft 1211 is rotated, the first kneading paddles 1212 arranged at intervals can successively knead, mix or stir the material, thereby improving the mixing efficiency. Meanwhile, the first kneading paddles 1212 can be uniformly distributed on the first rotating shaft 1211, so as to improve the uniformity of the mixing of the material, thereby enabling the mixing assembly 12 to more uniformly mix the material.

[0056] Optionally, the first kneading paddles 1212 can be spiral paddles, which form a continuous spiral shape along the axis of the rotating shaft to generate shearing and mixing effects when rotating. The first kneading paddles 1212 can also be paddle plate type paddles, which can generate shearing force when rotating and are suitable for materials that need to be finely mixed or dispersed. The first kneading paddles 1212 can also be other combined type paddles, which are not limited in the embodiments of the present application.

[0057] Please refer to Figure 5 , Figure 5 The structure schematic diagram of the kneading assembly provided by the embodiments of the present application, in some embodiments, the first kneading paddles 1212 include: a mounting portion 1212a, which is sleeved on the first rotating shaft 1211; and blade portions 1212b, which are multiple, and are arranged in a spiral shape on the mounting portion 1212a, and surround the outer surface of the first rotating shaft 1211.

[0058] The mounting portion 1212a is the part of the first kneading paddles 1212 connected with the first rotating shaft 1211, and the mounting portion 1212a is sleeved on the first rotating shaft 1211. Optionally, the mounting portion 1212a can be provided with a hole or a groove matched with the first rotating shaft 1211, so that the mounting portion 1212a can be stably fixed on the first rotating shaft 1211.

[0059] The blade portion 1212b is the working part of the first kneading paddles 1212, and the blade portion 1212b can contact and knead, mix and stir the material. The blade portion 1212b is multiple, which increases the contact area of the first kneading paddles 1212 with the material, thereby increasing the efficiency and effect of the kneading and stirring of the first kneading paddles 1212.

[0060] The plurality of blade portions 1212b are arranged in a spiral on the mounting portion 1212a, and the spiral blade portions 1212b can rotate in the material and generate rotation and shearing force on the material, so as to more effectively knead or stir the material and improve the mixing effect of the material. The plurality of blade portions 1212b are arranged around the outer surface of the first rotating shaft 1211, that is, the plurality of blade portions 1212b are distributed in a circumferential shape with the first rotating shaft 1211 as the center, so as to ensure that the material can be subjected to uniform force of the first kneading paddle 1212 during the kneading or stirring process, thereby enabling the material to be more fully mixed.

[0061] Please refer to Figure 5 In some embodiments, the second kneading member 122 comprises: a second rotating shaft 1221 located in the mixing cavity 11a, the second rotating shaft 1221 is rotatably connected with the shell 11, the second rotating shaft 1221 extends along the length direction of the shell, the second rotating shaft 1221 is connected with the driving assembly 123, and the second rotating shaft 1221 can rotate under the driving of the driving assembly 123; and a second kneading paddle 1222, the second kneading paddle 1222 is arranged on the second rotating shaft 1221, and the second kneading paddle 1222 can rotate with the second rotating shaft 1221.

[0062] The second rotating shaft 1221 is arranged in the mixing cavity 11a and extends along the width direction of the shell, and the second rotating shaft 1221 is rotatably connected with the shell 11, so as to avoid friction or obstruction between the second rotating shaft 1221 and the shell 11, thereby ensuring that the second rotating shaft 1221 can freely rotate under the driving of the driving assembly 123, and also ensuring the stability of the second rotating shaft 1221.

[0063] The second kneading paddle 1222 is arranged on the second rotating shaft 1221 and can rotate with the rotation of the second rotating shaft 1221. Optionally, the second kneading paddle 1222 and the second rotating shaft 1221 can be fixed by welding, spline or buckle, so that the second kneading paddle 1222 can rotate with the second rotating shaft 1221.

[0064] Specifically, when the driving assembly 123 is started and drives the second rotating shaft 1221 to rotate, the second kneading paddle 1222 contacts the material and rotates with the second rotating shaft 1221, so as to knead, mix or stir the material in the mixing cavity 11a. The arrangement of the second kneading paddle 1222 not only improves the mixing efficiency of the material, but also ensures the uniformity of the material mixing.

[0065] It should be noted that the first kneading paddle 1212 and the second kneading paddle 1222 can have the same structure and working principle, and this paper mainly describes and introduces the first kneading paddle 1212, and the structure and working principle of the second kneading paddle 1222 will not be described.

[0066] Please refer to Figure 2 In some embodiments, the second kneading member 122 comprises a second rotating shaft 1221, and the driving assembly 123 comprises a first gear 1231, a second gear 1232, and a driving member 1233. The first gear 1231 is sleeved on the first rotating shaft 1211 and can rotate with the first rotating shaft 1211. The second gear 1232 is sleeved on the second rotating shaft 1221 and is in transmission connection with the first gear 1231. The second gear 1232 can drive the second rotating shaft 1221 to rotate. The driving member 1233 is connected to the first rotating shaft 1211 and can drive the first rotating shaft 1211 to rotate.

[0067] Specifically, the driving member 1233 is connected to the first rotating shaft 1211. When the mixing assembly 12 needs to mix the material, the driving member 1233 can be started and drive the first rotating shaft 1211 to rotate, so as to drive 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 rotating 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 1221 penetrating through the second gear 1232 to rotate, so as to ensure that the first rotating shaft 1211 and the second rotating shaft 1221 rotate in opposite directions.

[0068] Optionally, the first gear 1231 and the second gear 1232 can be in transmission connection through a belt, can be in meshing transmission, or can be in chain transmission, and the embodiments of the present application do not make any limitation in this aspect.

[0069] In this way, the rotating directions of the first rotating shaft 1211 and the second rotating shaft 1221 are opposite, so as to ensure that the rotating directions of the first kneading member 121 and the second kneading member 122 are opposite, so that the material in the kneading channel between the first kneading member 121 and the second kneading member 122 is subjected to shearing, extrusion and mixing, and the mixing of the material is realized.

[0070] Optionally, the driving member 1233 can be a motor, a hydraulic motor or other equipment capable of generating rotary power, and the embodiments of the present application do not make any limitation in this aspect.

[0071] In addition, the first rotating shaft 1211 and the output shaft of the driving member 1233 can be in transmission connection through a shaft coupling 1234, a flange plate or the like, can be in transmission connection through a gear set as an intermediate medium, or can be in transmission connection through a belt or a chain as an intermediate medium.

[0072] Please refer to Figure 3In some embodiments, the driving assembly 123 further comprises a coupling 1234 sleeved on the output shaft of the driving member 1233, and the other end of the coupling 1234 is sleeved on the first rotating shaft 1211, and the coupling 1234 is used to drive the first rotating shaft 1211 to rotate with the output shaft of the driving member 1233.

[0073] Specifically, the coupling 1234 is used to connect the output shaft of the driving member 1233 and the first rotating shaft 1211, so as to ensure that the output shaft of the driving member 1233 and the first rotating shaft 1211 can rotate synchronously and transmit torque. The coupling 1234 can reliably transmit the torque generated by the driving member 1233 to the first rotating shaft 1211 and keep consistent rotating speed, thereby improving the stability and reliability of the system, achieving effective transmission of power and stable rotation of the first rotating shaft 1211. Meanwhile, the transmission structure of the coupling 1234 is simple, which reduces the occupied space of the material mixing mechanism 100 and saves the production cost of the material mixing mechanism 100.

[0074] Optionally, the coupling 1234 can be a rigid coupling 1234, an elastic coupling 1234, a diaphragm coupling 1234, etc., and the embodiments of the present application do not make any limitation in this regard.

[0075] In some embodiments, the extension directions of the first rotating shafts 1211 in two adjacent kneading and mixing modules 1 have an included angle, or the extension directions of the first rotating shafts 1211 in two adjacent kneading and mixing modules 1 are the same.

[0076] It can be understood that, please refer to Figure 1 When the first rotating shafts 1211 of two adjacent kneading and mixing modules 1 have an included angle, the kneading and mixing module 1 can generate more complex shearing and stretching action when the material moves from one kneading and mixing module 1 to another, which helps to break the agglomerates in the material and improve the mixing effect of the material. The first rotating shafts 1211 of two adjacent kneading and mixing modules 1 having an included angle are suitable for processing materials with higher viscosity or difficult to mix.

[0077] Please refer to Figure 6 , Figure 6 For the second structural schematic diagram of the material mixing mechanism 100 provided by the embodiments of the present application, when the extension directions of the first rotating shafts 1211 of two adjacent kneading and mixing modules 1 are the same, the material can realize more stable material transmission and mixing when moving from one kneading and mixing module 1 to another. The extension directions of the first rotating shafts 1211 of two adjacent kneading and mixing modules 1 being the same simplifies the flow path of the material between the modules, reduces the energy consumption and wear during the mixing process of the material.

[0078] Please refer to Figure 1In some embodiments, the material mixing mechanism 100 further comprises a feeding casing 2, which is located at the feeding port 11b of the uppermost kneading mixing module 1 in the vertical direction, and a feeding channel 2a is formed inside the feeding casing 2.

[0079] It can be understood that the material first enters the mixing mechanism through the feeding channel 2a inside the feeding casing 2, and the feeding casing 2 is the starting point of the material entering the mixing process. The feeding casing 2 is used to guide and transport the material into the kneading mixing module 1, so as to ensure that the material can smoothly and continuously enter the mixing cavity 11a through the feeding port 11b, thereby avoiding the accumulation or blockage of the material at the feeding port 11b.

[0080] Optionally, the shape, size and inclination angle of the feeding channel 2a and other parameters can be designed according to the actual production conditions and the shape of the material, so as to ensure the flow speed and mixing effect of the material, and prevent the accumulation of the material at the feeding port 11b from affecting the mixing effect of the material.

[0081] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A material mixing mechanism characterized by, The application relates to a kneading and mixing device. The kneading and mixing device comprises at least two kneading and mixing modules, each of which comprises a shell and a mixing assembly, the shell is internally formed with a mixing cavity, the shell is provided with an inlet and an outlet, the inlet and the outlet are communicated with the mixing cavity, the inlet and the outlet are correspondingly arranged in a vertical direction, the mixing assembly is arranged in the mixing cavity, the mixing assembly can mix materials to form mixed materials, and the mixed materials are discharged from the outlet, the at least two kneading and mixing modules are arranged in a vertical direction, and the outlet of the upper kneading and mixing module is communicated with the inlet of the lower kneading and mixing module.

2. The material mixing mechanism of claim 1, wherein, The mixing assembly further comprises: a first kneading member which is rotationally connected with the shell and arranged in the mixing cavity; a second kneading member which is rotationally connected with the shell and arranged in the mixing cavity, the first kneading member and the second kneading member are arranged in a width direction of the shell, a kneading channel is formed between the first kneading member and the second kneading member, and the kneading channel corresponds to the outlet in a vertical direction; a driving assembly which is arranged in the shell and can drive the first kneading member and / or the second kneading member to rotate relatively so that the first kneading member and the second kneading member mix the materials.

3. The material mixing mechanism of claim 2, wherein, The first kneading member comprises: a first rotating shaft which is arranged in the mixing cavity, rotationally connected with the shell, extends in a length direction of the shell, connected with the driving assembly, and can rotate under the driving of the driving assembly; a first kneading paddle which is arranged on the first rotating shaft and can rotate with the first rotating shaft.

4. The material mixing mechanism of claim 3, wherein, A plurality of first kneading paddles are arranged on the first rotating shaft and are arranged in a spacing manner in an extension direction of the first rotating shaft.

5. The material mixing mechanism of claim 3, wherein, The first kneading paddle comprises: a mounting portion which is sleeved on the first rotating shaft; a plurality of blade portions which are arranged on the mounting portion in a spiral manner and arranged around an outer surface of the first rotating shaft.

6. The material mixing mechanism of claim 3, wherein, The second kneading member comprises: a second rotating shaft which is arranged in the mixing cavity, rotationally connected with the shell, extends in a length direction of the shell, connected with the driving assembly, and can rotate under the driving of the driving assembly; a second kneading paddle which is arranged on the second rotating shaft and can rotate with the second rotating shaft.

7. The material mixing mechanism of claim 6, wherein, The driving assembly comprises: a first gear which is sleeved on the first rotating shaft and can rotate with the first rotating shaft; a second gear which is sleeved on the second rotating shaft, transmissionally connected with the first gear, and can drive the second rotating shaft to rotate; and a motor which is arranged in the shell and connected with the first gear and the second gear. A driving member is connected to the first rotating shaft, and the driving member is capable of driving the first rotating shaft to rotate.

8. The material mixing mechanism of claim 7, wherein, The driving assembly further comprises a coupling sleeve, which is sleeved on the output shaft of the driving member, and the other end of the coupling sleeve is sleeved on the first rotating shaft, and the coupling sleeve is used to drive the first rotating shaft to rotate with the output shaft of the driving member.

9. The material mixing mechanism of claim 6, wherein, The extension directions of the first rotating shafts in two adjacent kneading and mixing modules have an included angle; or The extension directions of the first rotating shafts in two adjacent kneading and mixing modules are the same.

10. The material mixing mechanism of claim 1, wherein, The material mixing mechanism further comprises: A feeding shell is located at the feeding port of the uppermost kneading and mixing module in the vertical direction, and a feeding channel is formed in the feeding shell.

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