Double-shaft paddle mixer

Abstract

The utility model relates to the technical field of feed processing, and discloses a double-shaft paddle mixer which comprises a mixing box, a first stirring rod and a second stirring rod which can rotate reversely are rotatably connected in a cavity of the mixing box; the material pushing structure comprises a material pushing plate, a guide rod, a cam and a wedge-shaped block, the guide rod is fixedly connected with the material mixing box, the material pushing plate is elastically connected with the guide rod, the wedge-shaped block is arranged on one side of the material pushing plate, the cam is fixedly connected with the first stirring rod, and the cam can push the wedge-shaped block to enable the material pushing plate to slide along the guide rod; a wedge-shaped block is lifted through a cam, so that a material pushing plate slides along a guide rod, the material pushing plate can push materials in one stirring cavity of a material mixing box to the other stirring cavity, the design of double shafts is matched with the two arc-shaped stirring cavities in the material mixing box, the material pushing plate sliding horizontally cannot interfere with movement of the material mixing box, and the material mixing box does not interfere with movement of the material mixing box. The mobility of the materials in the two stirring cavities can be higher, and the stirring effect is further improved.

Description

Technical Field

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

[0002] During the feed production process, the proportioned raw materials need to be stirred and mixed.

[0003] The prior art discloses a twin-shaft paddle mixer (publication number CN101480586B), which belongs to the field of feed processing technology in agricultural engineering. It consists of a mixing chamber, a rotating shaft, struts, and paddles. The mixing chamber has two parallel rotating shafts, each of which is axially fixed with 3 to 9 groups of struts perpendicular to the rotating shaft. The two struts in each group are aligned, and adjacent groups of struts are staggered 90 degrees. The groups of struts on the two rotating shafts are axially staggered. A paddle is mounted on the other end of each strut. Each side of the paddle has 3 to 10 transparent blade slots, and the angle between the paddle plane and the axis of the rotating shaft is 40 to 50 degrees.

[0004] The twin-shaft mixer proposed in the prior art is designed with a dual chamber, and the two stirring rods alternately extrude materials toward the corresponding chamber to promote mixing. However, due to the arc-shaped chamber design, in order to avoid motion interference, the stirring rods can only be tangent to the inner wall of the arc-shaped chamber at most. The relative fluidity of the part of the material between the two chambers is weak, and the stirring effect is limited.

[0005] To this end, we propose a twin-shaft paddle mixer. Utility Model Content

[0006] The utility model mainly solves the technical problem of unsatisfactory material convection effect between the two chambers and provides a double-shaft paddle mixer.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solution, a double-shaft paddle mixer, comprising:

[0008] A mixing box is a box structure for mixing materials. A hopper for feeding materials is fixedly installed on the top of the mixing box. A first stirring rod and a second stirring rod that can rotate reversibly are rotatably connected in the cavity of the mixing box. A motor is provided on the back of the mixing box to drive the first stirring rod and the second stirring rod;

[0009] A pushing structure is arranged in the mixing box cavity for squeezing and pushing the feed. The pushing structure includes a pushing plate, a guide rod, a cam and a wedge block. The guide rod is fixedly connected to the mixing box, the pushing plate is elastically connected to the guide rod, the wedge block is arranged on one side of the pushing plate, and the cam is fixedly connected to the first stirring rod. The cam can push the wedge block so that the pushing plate slides along the guide rod.

[0010] As a preferred embodiment of the present invention, two arc-shaped stirring chambers are provided inside the mixing box, the first stirring rod and the second stirring rod are respectively located in the two stirring chambers, and the push plate is located between the first stirring rod and the second stirring rod and does not interfere with the first stirring rod and the second stirring rod.

[0011] As a preferred embodiment of the present invention, the wedge-shaped block forms a block structure with a trapezoidal cross-section, and the inclined surface of the wedge-shaped block faces the cam.

[0012] As a preferred embodiment of the present invention, the pusher structure further includes a connecting rod and a sliding channel, the sliding channel is provided on the top of the guide rod, and the wedge block and the pusher plate are both provided on the top of the connecting rod.

[0013] As a preferred embodiment of the present invention, the connecting rod forms an L-shaped rod structure in cross section, the bent portion of the connecting rod extends vertically above the guide rod, and the horizontal portion of the connecting rod is adapted to the sliding channel and is slidably connected to the sliding channel.

[0014] As a preferred embodiment of the present invention, the push plate is fixedly mounted on the top surface of the horizontal portion of the connecting rod, and the push plate is tilted to form a rectangular plate structure.

[0015] As a preferred embodiment of the present invention, the wedge block is fixedly mounted on the side wall of the bent portion of the connecting rod, a spring is fixedly mounted on the end of the connecting rod, and the spring is fixedly connected to the guide rod.

[0016] The utility model provides a double-shaft paddle mixer. It has the following beneficial effects:

[0017] 1. This double-shaft paddle mixer drives the cam to rotate in a circle by rotating the first stirring rod, and the cam lifts the wedge block to make the push plate slide along the guide rod, and the push plate can push the material in one stirring chamber of the mixing box toward the other stirring chamber, and cooperate with the first stirring rod and the second stirring rod for shearing. The double-shaft design cooperates with the two arc-shaped stirring chambers inside the mixing box to promote material mixing. The horizontally sliding push plate will not interfere with the movement of the mixing box, and can also make the materials in the two stirring chambers more fluid, further improving the stirring effect.

[0018] 2. This twin-shaft paddle mixer pushes the wedge block through the cam, and the wedge block drives the connecting rod to slide linearly in the sliding channel and stretch the spring. When the cam is separated from the wedge block, the connecting rod is reset under the action of the spring, and the pusher plate forms a reciprocating motion in sequence, realizing two squeezing and pushing of materials. Through the continuous rotation of the first stirring rod, the pusher plate continuously pushes the materials in the two stirring chambers alternately, thereby promoting mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is an overall three-dimensional diagram of the utility model;

[0020] Figure 2 This is a partial cutaway view of the mixing box of the utility model;

[0021] Figure 3 This is a three-dimensional diagram of the pusher structure and the first stirring rod of the utility model;

[0022] Figure 4 This is a three-dimensional diagram of the pusher structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the installation of the push plate, wedge block and connecting rod of the utility model.

[0024] Legend: 10, mixing box; 11, first stirring rod; 12, second stirring rod; 20, push plate; 21, guide rod; 22, cam; 23, wedge block; 24, connecting rod; 25, sliding channel. DETAILED DESCRIPTION

[0025] A twin-shaft paddle mixer, such as Figure 1 and Figure 2 Shown, including:

[0026] The mixing box 10 is a box structure for mixing materials. A hopper for feeding is fixedly installed on the top of the mixing box 10. The first stirring rod 11 and the second stirring rod 12 that can rotate reversibly are rotatably connected in the cavity of the mixing box 10. The back of the mixing box 10 is provided with a motor to drive the first stirring rod 11 and the second stirring rod 12. Specifically, the motor is fixedly connected to the mixing box 10, and the output shaft of the motor and the ends of the first stirring rod 11 and the second stirring rod 12 are fixedly installed with the same gear. The motor is located between the first stirring rod 11 and the second stirring rod 12, and the gear at the output end of the motor is meshed with the other two gears. Of course, the motor needs to be powered on, and the raw materials of feed are injected into the mixing box 10 through the hopper. The counter-rotating first stirring rod 11 and the second stirring rod 12 shear and stir the raw materials to mix the feed. The double-axis design makes the mixing efficiency higher and the effect better.

[0027] like Figure 2 、 Figure 3 and Figure 4As shown, the pushing structure is arranged in the cavity of the mixing box 10 for squeezing and pushing the feed. The pushing structure includes a pushing plate 20, a guide rod 21, a cam 22 and a wedge block 23. The guide rod 21 is fixedly connected to the mixing box 10, the pushing plate 20 is elastically connected to the guide rod 21, the wedge block 23 is arranged on one side of the pushing plate 20, the cam 22 is fixedly connected to the first stirring rod 11, and the cam 22 can push the wedge block 23 to make the pushing plate 20 slide along the guide rod 21. Two arc-shaped stirring chambers are provided inside the mixing box 10, the first stirring rod 11 and the second stirring rod 12 are respectively located in the two stirring chambers, and the pushing plate 20 is located at the first stirring rod 11 and the second stirring rod 12 and does not interfere with the first stirring rod 11 and the second stirring rod 12, the wedge block 23 forms a block structure with a trapezoidal cross-section, and the inclined surface of the wedge block 23 faces the cam 22. In this solution, the rotation of the first stirring rod 11 drives the cam 22 to rotate in a circle, and the wedge block 23 is lifted by the cam 22 to make the push plate 20 slide along the guide rod 21, and the push plate 20 can push the material in one of the stirring chambers of the mixing box 10 toward the other stirring chamber, and cooperate with the shearing of the first stirring rod 11 and the second stirring rod 12 to make the material in the two stirring chambers more fluid, thereby further improving the stirring effect.

[0028] like Figure 4 and Figure 5 As shown, the pushing structure also includes a connecting rod 24 and a sliding channel 25. The sliding channel 25 is opened on the top of the guide rod 21. The wedge block 23 and the pushing plate 20 are both arranged on the top of the connecting rod 24. The connecting rod 24 forms a rod structure with an L-shaped cross section. The bent portion of the connecting rod 24 extends vertically above the guide rod 21. The horizontal portion of the connecting rod 24 is adapted to the sliding channel 25 and is slidably connected to the sliding channel 25. The pushing plate 20 is fixedly installed on the top surface of the horizontal portion of the connecting rod 24. The pushing plate 20 is tilted. The pushing plate 20 forms a rectangular plate structure. The wedge block 23 is fixedly installed on the connecting rod The side wall of the bent part of the connecting rod 24 and the end of the connecting rod 24 are fixedly installed with a spring, which is fixedly connected to the guide rod 21. As a supplement to the above scheme, the wedge block 23 is pushed by the cam 22, and the wedge block 23 drives the connecting rod 24 to slide linearly in the sliding channel 25 and stretch the spring. When the cam 22 is separated from the wedge block 23, the connecting rod 24 is reset under the action of the spring, and the push plate 20 forms a reciprocating motion in sequence, realizing two squeezing and pushing of materials. Through the continuous rotation of the first stirring rod 11, the push plate 20 continuously pushes the materials in the two stirring chambers alternately, thereby promoting mixing.

[0029] The working principle of the present invention is as follows: the motor is fixedly connected to the mixing box 10, and the output shaft of the motor and the ends of the first stirring rod 11 and the second stirring rod 12 are fixedly installed with the same gear. The motor is located between the first stirring rod 11 and the second stirring rod 12, and the gear at the output end of the motor is meshed with the other two gears. Of course, the motor needs to be powered on, and the raw materials of the feed are injected into the mixing box 10 through the hopper. The first stirring rod 11 and the second stirring rod 12 that rotate in opposite directions shear and stir the raw materials to mix the feed. The double-axis design cooperates with the two arc-shaped stirring chambers inside the mixing box 10 to promote material mixing.

[0030] The rotation of the first stirring rod 11 drives the cam 22 to rotate in a circle, and the cam 22 lifts the wedge block 23 to make the push plate 20 slide along the guide rod 21, and the wedge block 23 drives the connecting rod 24 to slide linearly in the sliding channel 25 and stretch the spring. When the cam 22 is separated from the wedge block 23, the connecting rod 24 is reset under the action of the spring, and the push plate 20 forms a reciprocating motion in sequence, realizing two squeezing and pushing of materials. Through the continuous rotation of the first stirring rod 11, the push plate 20 continuously pushes the materials of the two stirring chambers alternately, further promoting the flow of materials between the two stirring chambers.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A twin-shaft paddle mixer, characterized in that: include: A mixing box (10) is a box structure for mixing materials. A hopper for feeding materials is fixedly installed on the top of the mixing box (10). A first stirring rod (11) and a second stirring rod (12) that can rotate in opposite directions are rotatably connected in the cavity of the mixing box (10). A motor is provided on the back of the mixing box (10) to drive the first stirring rod (11) and the second stirring rod (12); A pushing structure is provided in the cavity of a mixing box (10) for squeezing and pushing feed, the pushing structure comprising a pushing plate (20), a guide rod (21), a cam (22) and a wedge block (23), the guide rod (21) being fixedly connected to the mixing box (10), the pushing plate (20) being elastically connected to the guide rod (21), the wedge block (23) being provided on one side of the pushing plate (20), the cam (22) being fixedly connected to the first stirring rod (11), and the cam (22) being able to push the wedge block (23) so that the pushing plate (20) slides along the guide rod (21).

2. The twin-shaft paddle mixer according to claim 1, characterized in that: Two arc-shaped stirring chambers are provided inside the mixing box (10), the first stirring rod (11) and the second stirring rod (12) are respectively located in the two stirring chambers, and the push plate (20) is located between the first stirring rod (11) and the second stirring rod (12) and does not interfere with the first stirring rod (11) and the second stirring rod (12).

3. The twin-shaft paddle mixer according to claim 1, characterized in that: The wedge-shaped block (23) forms a block structure with a trapezoidal cross section, and the inclined surface of the wedge-shaped block (23) faces the cam (22).

4. The twin-shaft paddle mixer according to claim 1, characterized in that: The pushing structure further comprises a connecting rod (24) and a sliding channel (25); the sliding channel (25) is provided on the top of the guide rod (21); and the wedge block (23) and the pushing plate (20) are both arranged on the top of the connecting rod (24).

5. The twin-shaft paddle mixer according to claim 4, characterized in that: The connecting rod (24) forms an L-shaped rod structure in cross section, the bent portion of the connecting rod (24) vertically extends upward toward the guide rod (21), and the horizontal portion of the connecting rod (24) is adapted to the sliding channel (25) and is slidably connected to the sliding channel (25).

6. The twin-shaft paddle mixer according to claim 4, characterized in that: The push plate (20) is fixedly mounted on the top surface of the horizontal portion of the connecting rod (24), and the push plate (20) is tilted to form a rectangular plate structure.

7. The twin-shaft paddle mixer according to claim 4, characterized in that: The wedge block (23) is fixedly mounted on the side wall of the bent portion of the connecting rod (24); a spring is fixedly mounted on the end of the connecting rod (24); and the spring is fixedly connected to the guide rod (21).

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