Double-shaft mixer

Abstract

The double-shaft mixing machine disclosed by the utility model comprises a barrel body, a first stirring shaft; a second stirring shaft; a first stirring blade; a second stirring blade; the first stirring blades and the second stirring blades are alternately arranged in a staggered manner, and the distance between the first stirring shaft and the second stirring shaft is smaller than the sum of the stirring radius of the first stirring blades and the stirring radius of the second stirring blades; the cylinder body comprises an opening which is jointly communicated with the first cavity and the second cavity, and discharge ports which are respectively formed in the bottom of the first cavity and the bottom of the second cavity; the discharging mechanism comprises a discharging door hinged to the barrel, a linkage assembly used for driving the discharging door to be closed or opened, and a driving assembly used for driving the linkage assembly. According to the double-shaft mixing machine provided by the utility model, the first stirring blade and the second stirring blade do not collide with each other during rotation, and the conveying directions of the first stirring blade and the second stirring blade are opposite to form mutual convection and cross mixing of two strands of materials, so that the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of aquatic feed production, in particular to a double-shaft mixer. Background Art

[0002] Feed manufacturers currently generally use single-shaft paddle and ribbon mixers for powder mixing and stirring. Both types of mixers have a paddle stirring shaft at work. Materials with multiple formula ingredients enter the mixer barrel and are thrown up by the rotating paddles. Due to the single stirring shaft structure, the materials will be thrown to one side of the barrel to move and mix with each other. Grease and water will be sprayed in as additives within the specified time. At this time, materials that deviate from the center line of the barrel will not absorb grease and water well, and the mixing uniformity will be affected and not high. The system sets a batch of powder mixing time of 4-5 minutes. Within the specified time, it is sent out of the barrel to the next production system through the bottom discharge door. When the mixer applies this process, it cannot achieve the optimal mixing parameters, and the products produced are often unstable, resulting in low market competitiveness and affecting the quality of the finished product. Utility Model Content

[0003] In order to solve the above problems, the technical solution provides a double-shaft mixer.

[0004] To achieve the above purpose, the technical solution is as follows:

[0005] Twin-shaft mixer, including

[0006] A cylinder having a first cavity and a second cavity at least partially overlapping the first cavity;

[0007] A first stirring shaft, which is disposed in the first cavity and is used for forward feeding;

[0008] A second stirring shaft, which is disposed in the second cavity and is used for reverse feeding;

[0009] first stirring blades, which are arranged on the first stirring shaft at intervals, and two adjacent first stirring blades are perpendicular to each other;

[0010] second stirring blades are arranged on the second stirring shaft at intervals, and two adjacent second stirring blades are perpendicular to each other;

[0011] The first stirring blade and the second stirring blade are alternately staggered, and the distance between the first stirring shaft and the second stirring shaft is smaller than the sum of the stirring radius of the first stirring blade and the stirring radius of the second stirring blade;

[0012] The cylinder comprises an opening that communicates the first cavity with the second cavity, and a discharge port that is respectively arranged at the bottom of the first cavity and the bottom of the second cavity;

[0013] The unloading mechanism comprises a discharge door hinged to the cylinder, a linkage assembly for driving the discharge door to close or open, and a driving assembly for driving the linkage assembly.

[0014] In the twin-shaft mixer as described above, when the discharge door is in the closed position, the linkage assembly is in the dead point position, and the drive assembly is in the dead point position.

[0015] In the twin-shaft mixer as described above, the linkage assembly comprises a support arm hinged to the barrel at a first hinge point, and a connecting rod hinged to the support arm and the discharge door at a second hinge point and a third hinge point respectively.

[0016] In the twin-shaft mixer as described above, when the discharge door is in a closed state, the second hinge point is located on one side of the straight line formed by the first hinge point and the third hinge point, and the second hinge point is close to the hinge point between the discharge door and the barrel.

[0017] In the double-shaft mixer as described above, the driving assembly includes a cylinder seat arranged on the barrel, a driving cylinder hinged to the cylinder seat at a fourth hinge point, a rotating shaft hinged to the barrel at a fifth hinge point and rotating synchronously with the support arm, and a transmission arm arranged on the rotating shaft and hinged to the output end of the driving cylinder at a sixth hinge point.

[0018] In the twin-shaft mixer as described above, when the discharge door is in a closed state, the sixth hinge point is located on one side of the vertical plane where the axis of the rotating shaft is located, and the side is the side away from the cylinder seat.

[0019] In the twin-shaft mixer as described above, the length of the transmission arm is greater than the length of the support arm.

[0020] In the double-shaft mixer as described above, the first cavity and the second cavity are both U-shaped.

[0021] In the double-shaft mixer as described above, the first stirring blade includes a support column extending from both ends along the diameter direction of the first stirring shaft, and a blade disposed at the end of the support column.

[0022] In the double-shaft mixer as described above, the thickness of the blade gradually decreases from the front side to the back side thereof, and a wave-shaped protrusion is provided on the front side of the blade.

[0023] The beneficial effects of this application are:

[0024] The utility model provides a double-shaft mixer, wherein the first stirring blade and the second stirring blade will not collide with each other when rotating, and the transport directions of the two stirring blades are opposite, so that two streams of materials are convected and cross-mixed with each other, thereby improving the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0027] Figure 2 It is an internal structure diagram of an embodiment of the utility model;

[0028] Figure 3 yes Figure 4 A cross-sectional view of

[0029] Figure 4 is a partial side view of this embodiment;

[0030] Figure 5 It is a schematic diagram of the structure of the blade. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] Twin-shaft mixer, including

[0033] The cylinder 1 is provided with a first cavity 11 and a second cavity 12 at least partially overlapping the first cavity 11;

[0034] A first stirring shaft 2, which is disposed in the first cavity 11 and is used for forward feeding;

[0035] A second stirring shaft 3, which is disposed in the second cavity 12 and is used for reverse feeding;

[0036] First stirring blades 4 are arranged on the first stirring shaft 2 at intervals, and two adjacent first stirring blades 4 are perpendicular to each other;

[0037] Second stirring blades 5 are arranged on the second stirring shaft 3 at intervals, and two adjacent second stirring blades 5 are perpendicular to each other;

[0038] The first stirring blades 4 and the second stirring blades 5 are alternately staggered, and the distance between the first stirring shaft 2 and the second stirring shaft 3 is smaller than the sum of the stirring radius of the first stirring blade 4 and the stirring radius of the second stirring blade 5;

[0039] The cylinder 1 includes an opening 13 that communicates with the first cavity 11 and the second cavity 12, and a discharge port 14 that is respectively provided at the bottom of the first cavity 11 and the bottom of the second cavity 12;

[0040] The discharge mechanism 6 comprises a discharge door 61 hinged to the cylinder 1, a linkage assembly 62 for driving the discharge door 61 to close or open, and a driving assembly 63 for driving the linkage assembly 62. The discharge door can discharge the material quickly, and very little powder remains in the cylinder.

[0041] The utility model provides a double-shaft mixer, wherein the first stirring blade and the second stirring blade will not collide with each other when rotating, and the transport directions of the two stirring blades are opposite, so that two streams of materials are convected and cross-mixed with each other, thereby improving the mixing efficiency.

[0042] Further, as a preferred implementation of this solution but not limiting, when the discharge door 61 is in the closed position, the linkage assembly 62 is in the dead point position, and the drive assembly 63 is in the dead point position. The connecting rod and lever principle are mutually self-locking.

[0043] Furthermore, as a preferred embodiment of the present invention but not a limitation, the linkage assembly 62 includes a support arm 621 hinged to the cylinder 1 at a first hinge point 601, and a connecting rod 622 hinged to the support arm 621 and the discharge gate 61 at a second hinge point 602 and a third hinge point 603, respectively.

[0044] Furthermore, as a preferred embodiment of the present invention but not a limitation, when the discharge door 61 is in a closed state, the second hinge point 602 is located on one side of the straight line formed by the first hinge point 601 and the third hinge point 603, and the second hinge point 602 is close to the hinge point between the discharge door 61 and the cylinder 1.

[0045] Furthermore, as a preferred embodiment of the present invention but not a limitation, the driving assembly 63 includes a cylinder seat 631 disposed on the cylinder body 1, a driving cylinder 632 hinged to the cylinder seat 631 at a fourth hinge point 604, a rotating shaft 633 hinged to the cylinder body 1 at a fifth hinge point 605 and rotating synchronously with the support arm 621, and a transmission arm 634 disposed on the rotating shaft 633 and hinged to the output end of the driving cylinder 632 at a sixth hinge point 606.

[0046] Furthermore, as a preferred implementation of the present solution but not a limitation, when the discharge door 61 is in a closed state, the sixth hinge point 606 is located on one side of the vertical plane where the axis of the rotating shaft 633 is located, and this side is away from the cylinder seat 631.

[0047] Further, as a preferred implementation of the present solution but not limiting, the length of the transmission arm 634 is greater than the length of the support arm 621. By utilizing the lever principle, the load of the cylinder can be saved.

[0048] Further, as a preferred implementation of the present solution but not a limitation, the first cavity 11 and the second cavity 12 are both U-shaped.

[0049] Further, as a preferred implementation of the present solution but not limiting, the first stirring blade 4 includes a support column 41 extending from both ends along the diameter direction of the first stirring shaft 2 , and a blade 42 provided at the end of the support column 41 .

[0050] Further, as a preferred embodiment of the present invention but not limiting, the thickness of the blade 42 gradually decreases from the front side to the back side, and a wave-shaped protrusion 421 is provided on the front side of the blade 42. The rotation can produce a certain flipping effect on the material.

[0051] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other principles and basic structures that are the same or similar to those of the present application are within the protection scope of the present application.

Claims

1. Double-shaft mixer, characterized in that: include A cylinder (1) having a first cavity (11) and a second cavity (12) at least partially overlapping the first cavity (11); A first stirring shaft (2), which is disposed in the first cavity (11) and is used for forward feeding; A second stirring shaft (3), which is disposed in the second cavity (12) and is used for reverse feeding; First stirring blades (4) are arranged on the first stirring shaft (2) at intervals, and two adjacent first stirring blades (4) are perpendicular to each other; Second stirring blades (5) are arranged on the second stirring shaft (3) at intervals, and two adjacent second stirring blades (5) are perpendicular to each other; The first stirring blade (4) and the second stirring blade (5) are alternately staggered, and the distance between the first stirring shaft (2) and the second stirring shaft (3) is smaller than the sum of the stirring radius of the first stirring blade (4) and the stirring radius of the second stirring blade (5); The cylinder (1) comprises an opening (13) which is in communication with the first cavity (11) and the second cavity (12), and discharge ports (14) which are respectively arranged at the bottom of the first cavity (11) and the bottom of the second cavity (12); The discharge mechanism (6) comprises a discharge door (61) hinged to the cylinder (1), a linkage assembly (62) for driving the discharge door (61) to close or open, and a driving assembly (63) for driving the linkage assembly (62).

2. The twin-shaft mixer according to claim 1, characterized in that: When the discharge door (61) is in the closed position, the linkage assembly (62) is in the dead point position, and the drive assembly (63) is in the dead point position.

3. The twin-shaft mixer according to claim 1 or 2, characterized in that: The linkage assembly (62) comprises a support arm (621) hinged to the cylinder (1) at a first hinge point (601), and a connecting rod (622) hinged to the support arm (621) and the discharge door (61) at a second hinge point (602) and a third hinge point (603), respectively.

4. The twin-shaft mixer according to claim 3, characterized in that: When the discharge door (61) is in a closed state, the second hinge point (602) is located on one side of a straight line formed by the first hinge point (601) and the third hinge point (603), and the second hinge point (602) is close to the hinge point between the discharge door (61) and the cylinder (1).

5. The twin-shaft mixer according to claim 3, characterized in that: The driving assembly (63) comprises a cylinder seat (631) arranged on the cylinder body (1), a driving cylinder (632) hinged to the cylinder seat (631) at a fourth hinge point (604), a rotating shaft (633) hinged to the cylinder body (1) at a fifth hinge point (605) and rotating synchronously with the support arm (621), and a transmission arm (634) arranged on the rotating shaft (633) and hinged to the output end of the driving cylinder (632) at a sixth hinge point (606).

6. The twin-shaft mixer according to claim 5, characterized in that: When the discharge door (61) is in a closed state, the sixth hinge point (606) is located on one side of the vertical plane where the axis of the rotating shaft (633) is located, and this side is the side away from the cylinder seat (631).

7. The twin-shaft mixer according to claim 5, characterized in that: The length of the transmission arm (634) is greater than the length of the support arm (621).

8. The twin-shaft mixer according to claim 5, characterized in that: The first cavity (11) and the second cavity (12) are both U-shaped.

9. The twin-shaft mixer according to claim 1, characterized in that: The first stirring blade (4) comprises a support column (41) extending from both ends along the diameter direction of the first stirring shaft (2), and a blade (42) arranged at the end of the support column (41).

10. The twin-shaft mixer according to claim 9, characterized in that: The thickness of the blade (42) gradually decreases from the front side to the back side thereof, and a wave-shaped protrusion (421) is provided on the front side of the blade (42).

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