Kneading machine capable of preventing materials from caking

Abstract

The utility model relates to a kneading machine, in particular to a kneading machine capable of preventing materials from caking. Comprising a shell, two Z-shaped stirring blades are symmetrically and rotationally installed at the positions, close to the bottom end, in the shell, rotating shafts are fixedly connected to the two ends of each stirring blade, the other ends of the rotating shafts rotationally penetrate through the side wall of the shell and extend outwards, and a first auger blade is rotationally installed in the middle of the interior of the shell. According to the utility model, when the driving mechanism drives the first auger blade to rotate, the sawtooth grooves effectively cut and scatter agglomerates in materials, and meanwhile, the first auger blade downwards conveys the materials and applies pressure, and the materials are promoted to form up-and-down circulating motion by utilizing a gap reserved between the first auger blade and the side wall of the shell; and the circulating motion and the stirring blades which rotate continuously cooperate to repeatedly stir, shear and impact the materials, so that cakes in the materials are efficiently crushed, the stirring and mixing efficiency is improved, and the materials are effectively prevented from caking.

Description

Technical Field

[0001] This utility model relates to a kneading machine, specifically, to a kneading machine that prevents materials from clumping together. Background Technology

[0002] When mixing high-viscosity or easily agglomerated materials (such as pastes and gel-like mixtures), traditional kneaders mainly rely on the shearing action of the bottom mixing blades. However, traditional designs mainly generate horizontal or vortex-like material movement and lack a mechanism to force the material to circulate fully in the vertical direction. This easily leads to the accumulation and compaction of material in the lower part of the container, especially in the area near the lowest point of the bottom, due to continuous pressure, forming a "dead zone" with poor mobility. For this area, existing technologies rely excessively on the movement of the mixing blades themselves to prevent accumulation and agglomeration. The material in this area is under the greatest pressure and has the worst mobility. It is difficult to completely avoid material accumulation and compaction by mixing blades alone, resulting in a high risk of bottom agglomeration and limited crushing efficiency.

[0003] Meanwhile, the material layer above the mixing zone often lacks effective active crushing methods, making it difficult for the bottom blades to reach and crush the larger lumps or agglomerates formed in this area, thus affecting the overall uniformity of the material. Utility Model Content

[0004] The purpose of this invention is to provide a kneading machine that prevents material agglomeration, thereby solving the problems mentioned in the background art.

[0005] When mixing high-viscosity or easily agglomerated materials, the material layer above the mixing zone lacks effective active crushing methods, resulting in the formation of large lumps or agglomerates in this area, affecting the overall uniformity of the material.

[0006] To address the above problems, the present invention aims to provide a kneading machine for preventing material agglomeration, comprising a housing. Two Z-shaped stirring blades are symmetrically and rotatably mounted near the bottom of the housing. Both ends of the stirring blades are fixedly connected to a rotating shaft, the other end of which rotatably passes through the side wall of the housing and extends outward. A first auger blade is rotatably mounted in the middle of the housing, positioned above the stirring blades. The outer edge of the first auger blade has a serrated groove. A cover is provided on the upper side wall of the housing, and a drive mechanism for driving the first auger blade to rotate is provided on the upper side of the cover. When the drive mechanism drives the first auger blade to rotate, the first auger blade conveys the material inside the housing towards the stirring blades.

[0007] As a further improvement to this technical solution, the drive mechanism includes a reducer fixedly installed on the upper side wall of the housing cover. A first motor is fixedly installed on one side of the reducer. The output shaft of the first motor is coaxially and fixedly connected to the input shaft of the reducer through a coupling. An extension shaft is coaxially and fixedly connected to the output shaft of the reducer through a coupling. The lower end of the extension shaft rotatably passes through the housing cover and is fixedly connected to the first auger blade.

[0008] As a further improvement to this technical solution, a gap is reserved between the first auger blade and the inner wall of the shell. When the first auger blade conveys the material inside the shell towards the direction close to the stirring blade, the material in the gap is replenished above the first auger blade.

[0009] As a further improvement to this technical solution, a discharge pipe is fixedly connected to one side of the shell near the bottom. The discharge pipe is connected to the inside of the shell. A feeding mechanism is provided inside the shell at a position corresponding to the discharge pipe. The feeding mechanism is used to convey the material at the bottom of the shell towards or away from the discharge pipe.

[0010] As a further improvement to this technical solution, the feeding mechanism includes a second motor fixedly installed on the side of the housing away from the discharge pipe. The output shaft of the second motor is coaxially fixedly connected to a drive shaft through a coupling. The other end of the drive shaft rotates through the side wall of the housing and extends into the interior of the discharge pipe.

[0011] As a further improvement to this technical solution, a second auger blade is fixedly connected to the drive shaft. The second auger blade is located between two stirring blades, and the outer edge of the second auger blade is in contact with the bottom side inside the housing.

[0012] As a further improvement to this technical solution, when the stirring blades are stirring the material, the second auger blades will transport the material away from the discharge pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This kneading machine for preventing material agglomeration, when the drive mechanism drives the first auger blade to rotate, the serrated groove effectively cuts and breaks up the agglomerates in the material. At the same time, the first auger blade conveys the material downward, applies pressure, and uses the gap reserved between it and the side wall of the shell to promote the material to form an up-and-down circulating motion. This circulating motion works in conjunction with the continuously rotating stirring blades to repeatedly stir, shear, and impact the material, thereby efficiently breaking up the agglomerates in the material, improving the mixing efficiency, and effectively preventing material agglomeration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the drive mechanism and the first auger blade of this utility model.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Shell; 11. Shell cover; 12. Discharge pipe;

[0020] 2. Agitator blades; 21. Rotating shaft;

[0021] 3. First auger blade; 31. Serrated groove;

[0022] 4. Drive mechanism; 41. Reducer; 42. First motor; 43. Extension shaft;

[0023] 5. Feeding mechanism; 51. Second motor; 52. Drive shaft; 53. Second auger blade. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1 and Figure 2 As shown, the purpose of this embodiment is to provide a kneader to prevent material from clumping, including a shell 1 with the opening facing upwards. The upper side wall of the shell 1 is provided with an openable and closable shell cover 11. Two Z-shaped stirring blades 2 are symmetrically and rotatably installed inside the shell 1 near the bottom. Both ends of the stirring blades 2 are fixedly connected to a rotating shaft 21. The other end of the rotating shaft 21 rotatably passes through the side wall of the shell 1 and extends outwards. A sealed bearing is provided at the position where the rotating shaft 21 passes through the side wall of the shell 1 to prevent the material inside the shell 1 from leaking through the gap between the rotating shaft 21 and the shell 1.

[0027] When the kneader is in use, the cover 11 is fixedly connected to an external robotic arm. The robotic arm is used to remove the cover 11 from the housing 1 or to close the cover 11 onto the top opening of the housing 1. One end of the rotating shaft 21 on each stirring blade 2 is coaxially fixedly connected to the output shaft of an external stirring motor via a coupling. The stirring motor is used to drive the corresponding rotating shaft 21 and the stirring blade 2 to rotate. Both stirring motors are electrically connected to an external control device. The control device can control the two stirring motors to start and stop synchronously. The control principle of the control device is existing technology, so it will not be described in detail here.

[0028] After the robotic arm removes the cover 11 from the housing 1, the top opening of the housing 1 is exposed. Material is added into the interior of the housing 1 through this opening. After the material is added, the robotic arm moves the cover 11 to the upper side wall of the housing 1 and closes it, sealing the top opening of the housing 1 to prevent material leakage.

[0029] Next, the control equipment synchronously starts two stirring motors, which drive the corresponding stirring blades 2 to rotate. The two stirring blades 2 work together to stir and mix the materials inside the shell 1.

[0030] When the stirring blade 2 rotates for a predetermined time and the material is stirred, the stirring motor stops rotating. At this time, the feeding mechanism 5 is started. The feeding mechanism 5 is located on the side of the shell 1 near the bottom and corresponds to the discharge pipe 12 fixed on the shell 1, so that the material at the bottom of the shell 1 is discharged through the discharge pipe 12.

[0031] The structure of the feeding mechanism 5 is described in detail below. The feeding mechanism 5 includes a second motor 51 fixedly installed on the side of the housing 1 away from the discharge pipe 12. The output shaft of the second motor 51 is coaxially fixedly connected to a drive shaft 52 through a coupling. The other end of the drive shaft 52 rotates through the side wall of the housing 1 and extends into the interior of the discharge pipe 12. A sealed bearing is provided at the position where the drive shaft 52 passes through the side wall of the housing 1 to prevent material leakage. A second auger blade 53 is fixedly connected to the drive shaft 52. The second auger blade 53 is located between two stirring blades 2, and the outer edge of the second auger blade 53 contacts the lowest point of the bottom side (designed to be approximately arc-shaped) inside the housing 1.

[0032] During the mixing process of the stirring blade 2, the second motor 51 drives the second auger blade 53 to rotate, so that the second auger blade 53 conveys the material away from the discharge pipe 12. When the material is pushed towards the side wall of the shell 1, it is blocked and forced to move upward along the side wall. The upward moving material enters the working area of ​​the stirring blade 2. The stirring blade 2 breaks up the part of the upward material and the clumps therein, thereby preventing the material from accumulating and clumping in the bottom area between the two stirring blades 2.

[0033] During the discharge stage, the second motor 51 drives the drive shaft 52 and the second auger blade 53 to rotate. The second auger blade 53 conveys the material that has fallen to the lowest point of the bottom of the housing 1 towards the direction of the discharge pipe 12, so that the material is discharged from the housing 1 through the discharge pipe 12. At the same time as the second auger blade 53 conveys the material, the two stirring blades 2 continue to stir the material, so that the material comes into contact with the second auger blade 53 and the material is conveyed out.

[0034] To prevent material from clumping inside the shell 1, a first auger blade 3 is rotatably installed in the middle position inside the shell 1, and the first auger blade 3 is located above the stirring blade 2. The outer edge of the first auger blade 3 is provided with a serrated groove 31, and a drive mechanism 4 for driving the first auger blade 3 to rotate is provided on the upper side of the shell cover 11.

[0035] While the stirring blade 2 stirs the material, the drive mechanism 4 drives the first auger blade 3 to rotate. The serrated groove 31 on the outer edge of the first auger blade 3 can effectively cut and break up the clumps of material. At the same time, the first auger blade 3 conveys the material inside the shell 1 towards the stirring blade 2 below, applying downward pressure to the material. A specific gap is reserved between the first auger blade 3 and the inner wall of the shell 1. The width of this gap allows the material to move vertically. When the first auger blade 3 conveys the material downward, the material below it is subjected to increased squeezing pressure. Under the action of pressure, the material in the gap is forced to move upward and flow back to the area above the first auger blade 3. Then it is conveyed downward by the first auger blade 3. In this up-and-down cycle, the continuously rotating stirring blade 2 continuously stirs, shears, and impacts the material, efficiently breaking up clumps in the material and improving the mixing efficiency.

[0036] The structure of drive mechanism 4 is described in detail below, referring to... Figure 3 The drive mechanism 4 includes a reducer 41 fixedly installed on the upper side wall of the housing cover 11. A first motor 42 is fixedly installed on one side of the reducer 41. The output shaft of the first motor 42 is coaxially fixedly connected to the input shaft of the reducer 41 through a coupling. An extension shaft 43 is coaxially fixedly connected to the output shaft of the reducer 41 through a coupling. The lower end of the extension shaft 43 rotatably passes through the housing cover 11 and is fixedly connected to the first auger blade 3. A sealed bearing is provided at the position where the extension shaft 43 passes through the housing cover 11 to prevent material leakage.

[0037] After the first motor 42 is started, its output shaft drives the input shaft of the reducer 41 to rotate. The output shaft of the reducer 41 drives the first auger blade 3 to rotate through the extension shaft 43, thereby realizing the function of crushing and conveying materials by the first auger blade 3.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A kneader for preventing material from caking, comprising a casing (1), characterized in that: Two Z-shaped stirring blades (2) are symmetrically and rotatably installed inside the shell (1) near the bottom. Both ends of the stirring blades (2) are fixedly connected to a rotating shaft (21). The other end of the rotating shaft (21) rotatably passes through the side wall of the shell (1) and extends outward. A first auger blade (3) is rotatably installed in the middle of the shell (1) and is located above the stirring blades (2). The outer edge of the first auger blade (3) is provided with a serrated groove (31). A shell cover (11) is provided on the upper side wall of the shell (1). A drive mechanism (4) for driving the first auger blade (3) to rotate is provided on the upper side of the shell cover (11). When the drive mechanism (4) drives the first auger blade (3) to rotate, the first auger blade (3) conveys the material inside the shell (1) towards the stirring blade (2).

2. A mass agglomeration preventing kneader according to claim 1, characterized in that: The drive mechanism (4) includes a reducer (41) fixedly installed on the upper side wall of the cover (11). A first motor (42) is fixedly installed on one side of the reducer (41). The output shaft of the first motor (42) is coaxially fixedly connected to the input shaft of the reducer (41) through a coupling. An extension shaft (43) is coaxially fixedly connected to the output shaft of the reducer (41) through a coupling. The lower end of the extension shaft (43) rotatably passes through the cover (11) and is fixedly connected to the first auger blade (3).

3. A mass agglomeration preventing kneader according to claim 1, wherein: A gap is reserved between the first auger blade (3) and the inner wall of the shell (1). When the first auger blade (3) conveys the material inside the shell (1) toward the direction close to the stirring blade (2), the material in the gap is replenished above the first auger blade (3).

4. A mass agglomeration preventing kneader according to claim 1, wherein: A discharge pipe (12) is fixedly connected to one side of the shell (1) near the bottom. The discharge pipe (12) is connected to the inside of the shell (1). A feeding mechanism (5) is provided inside the shell (1) at the position corresponding to the discharge pipe (12). The feeding mechanism (5) is used to transport the material at the bottom of the shell (1) towards or away from the discharge pipe (12).

5. A mass agglomeration preventing kneader according to claim 4, wherein: The feeding mechanism (5) includes a second motor (51) fixedly installed on the side of the housing (1) away from the discharge pipe (12). The output shaft of the second motor (51) is coaxially fixedly connected to a drive shaft (52) via a coupling. The other end of the drive shaft (52) rotatably passes through the side wall of the housing (1) and extends into the interior of the discharge pipe (12).

6. A mass agglomeration preventing kneader according to claim 5, wherein: A second auger blade (53) is fixedly connected to the drive shaft (52). The second auger blade (53) is located between two stirring blades (2), and the outer edge of the second auger blade (53) is in contact with the bottom side inside the housing (1).

7. A mass agglomeration preventing kneader according to claim 6, characterized in that: When the stirring blade (2) stirs the material, the second auger blade (53) conveys the material away from the discharge pipe (12).

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