Feed pellet mill

Abstract

The utility model provides a kind of fodder granulator that both facilitates the discharge of pulverization, and can improve the mixing efficiency of fodder granulator, and it relates to feed production equipment technical field.Fodder granulator, including stirring controller, stirring drive motor, stirring barrel and fodder granule forming mechanism, the bottom of stirring barrel is equipped with vertically downward extending discharge passage, the fodder granule forming mechanism is connected with the lower end of discharge passage, stirring barrel is equipped with vertically arranged stirring spindle, and the stirring spindle includes stirring section in stirring barrel and discharge feeding section extending into the discharge passage;Stirring section is equipped with stirring part, and discharge feeding section is equipped with discharge control spiral blade, which is helically extended along its axial direction and matched with discharge passage, stirring drive motor is drivingly connected with stirring spindle, and stirring controller is electrically connected with stirring drive motor.

Description

Technical Field

[0001] This utility model relates to the field of feed production equipment technology, specifically a feed pellet mill. Background Technology

[0002] Currently, feed pellet mills are essential equipment for producing poultry feed. They are feed processing machines that directly compress crushed materials such as corn, soybean meal, straw, grass, and rice husks into pellets. To ensure the quality of the pelleted feed, the crushed materials need to be stirred during the production process, such as by adding water and mixing, to ensure that the materials are evenly mixed and that the moisture content meets the requirements.

[0003] Chinese patent CN217410692U discloses a pellet mill for feed production, including a machine body. From top to bottom, the machine body is equipped with a mixing mechanism and a forming mechanism. The mixing mechanism includes a mixing shaft and mixing components arranged around the mixing shaft. The mixing mechanism is installed in the upper cavity, and the forming mechanism is installed in the lower cavity. The upper and lower cavities are connected by a solenoid valve. During use, this mechanism suffers from the problem of material easily getting stuck in the channel between the upper and lower cavities, resulting in poor discharge of the crushed material. Furthermore, during the mixing process, the linear velocity of the mixing components decreases as they approach the mixing shaft, thus the mixing effect on the crushed material closer to the mixing shaft is worse. The mixing efficiency of the feed pellet mill needs further improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a feed pellet mill that facilitates the discharge of crushed materials and improves the mixing efficiency of the feed pellet mill.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a feed pellet mill, including a stirring controller, a stirring drive motor, a stirring drum and a feed pellet forming mechanism. The bottom of the stirring drum is provided with a vertically downward extending discharge channel. The feed pellet forming mechanism is connected to the lower end of the discharge channel. A vertically arranged stirring main shaft is installed inside the stirring drum. The stirring main shaft includes a stirring section located inside the stirring drum and a discharge feeding section extending into the discharge channel.

[0006] The mixing section is equipped with a mixing element, and the discharge feeding section is equipped with a discharge control spiral blade that extends spirally along its axis and cooperates with the discharge channel.

[0007] The stirring drive motor is connected to the stirring spindle, and the stirring controller is electrically connected to the stirring drive motor. During stirring, the stirring drive motor drives the stirring spindle to rotate in the direction of upward feeding of the discharge control spiral blades, and during discharge, the stirring drive motor drives the stirring spindle to rotate in the direction of downward feeding of the discharge control spiral blades.

[0008] Furthermore, the bottom of the mixing tank has a conical structure that is wider at the top and narrower at the bottom, and the discharge channel is located at the lowest point of the bottom of the mixing tank.

[0009] Furthermore, the stirring component includes a connecting portion extending radially along the stirring section and a guide plate disposed at one end of the connecting portion away from the stirring section. The guide plate is inclined relative to the rotational tangential direction of the connecting portion, and the inclination direction is such that when the stirring main axis rotates in the direction that the discharge control spiral blades feed upward, the guide plate pushes material outward in the direction of the stirring tank.

[0010] Furthermore, the feed pellet forming mechanism includes a forming cavity, a pellet forming template, a forming drive spindle, a reduction gearbox, a cutting blade, and a pressing roller;

[0011] The particle forming template is horizontally arranged in the forming cavity and divides the forming cavity into an upper chamber and a lower chamber. The particle forming template is rotatably engaged with the forming cavity so that it can rotate within the forming cavity.

[0012] The cutting blade is installed in the lower chamber and arranged below the granule forming template; the lower chamber is provided with a discharge port.

[0013] One end of the molding drive spindle is connected to the output end of the gearbox, and the other end is connected to the particle molding template to drive the particle molding template to rotate.

[0014] The pressure roller is installed above the granule forming template.

[0015] Furthermore, the gearbox housing is provided with a water-cooling chamber.

[0016] Furthermore, it also includes a molding drive mechanism, which is connected to the input shaft of the gearbox.

[0017] The beneficial effects of this utility model are as follows: During mixing, the material entering the discharge channel can be pushed upward by the discharge control spiral blades, preventing the material from passing through the discharge channel and effectively closing it. Simultaneously, it also allows the material near the mixing section in the mixing drum to move upward, enabling the material around the mixing section to quickly participate in the mixing. Therefore, it improves the mixing efficiency of the feed pellet mill, resulting in higher production efficiency. During discharge, the mixing controller controls the mixing drive motor to drive the mixing main axis, causing the discharge control spiral blades to rotate downwards and compress the material, preventing blockage in the discharge channel and ensuring smooth discharge from the feed pellet mill mixing drum, making it more convenient to use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 yes Figure 1 Sectional view along AA;

[0020] Figure 3 yes Figure 1 Sectional view along AA;

[0021] Figure 4 This is a schematic diagram of the agitator component;

[0022] Figure 5 This is a schematic diagram of the pressure roller setup;

[0023] The diagram shows: 1. Feed pellet forming mechanism; 2. Mixing tank; 3. Mixing drive motor; 5. Discharge channel; 6. Mixing controller; 7. Material circulation path; 11. Forming cavity; 12. Forming drive main shaft; 13. Pellet forming template; 14. Cutting knife; 15. Pressing roller; 16. Gearbox; 41. Mixing section; 42. Discharge and feeding section; 43. Mixing component; 44. Discharge control spiral blade; 111. Upper chamber; 112. Lower chamber; 113. Discharge port; 161. Water cooling cavity; 431. Connecting part; 432. Guide plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 3As shown, the feed pellet mill of this utility model includes a stirring controller 6, a stirring drive motor 3, a stirring tank 2, and a feed pellet forming mechanism 1. The bottom of the stirring tank 2 is provided with a vertically downward extending discharge channel 5. The feed pellet forming mechanism 1 is connected to the lower end of the discharge channel 5. A vertically arranged stirring main shaft is installed inside the stirring tank 2. The stirring main shaft includes a stirring section 41 located inside the stirring tank 2 and a discharge feeding section 42 extending into the discharge channel 5. A stirring element 43 is installed on the stirring section 41, and a discharge control spiral blade 44 extending spirally along its axial direction and cooperating with the discharge channel 5 is installed on the discharge feeding section 42. The stirring drive motor 3 is connected to the stirring spindle, and the stirring controller 6 is electrically connected to the stirring drive motor 3. During stirring, the stirring drive motor 3 drives the stirring spindle to rotate in the direction of upward feeding of the discharge control spiral blade 44. During discharge, the stirring drive motor 3 drives the stirring spindle to rotate in the direction of downward feeding of the discharge control spiral blade 44, so that the material (crushed material) is discharged through the discharge channel 5.

[0026] It should be noted that the specific rotation direction of the mixing main shaft during mixing and discharge is determined by the rotation direction of the discharge control spiral blade 44. When the discharge control spiral blade 44 is right-handed, the discharge control spiral blade 44 feeds material downwards when the mixing main shaft rotates counterclockwise, and feeds material upwards when it rotates clockwise; when the discharge control spiral blade 44 is left-handed, the discharge control spiral blade 44 feeds material downwards when the mixing main shaft rotates clockwise, and feeds material upwards when it rotates counterclockwise.

[0027] The feed pellet mill of this utility model has the same processing flow as existing feed pellet mills: pulverized material enters the mixing tank 2, is mixed by the rotating mixing shaft until the required moisture content is achieved, and then flows out through the discharge channel 5 into the feed pellet forming mechanism 1, where it is processed into pelleted feed. The difference in this feed pellet mill is that the mixing shaft is extended into the discharge channel 5, i.e., a discharge feeding section 42 is provided, and a discharge control spiral blade 44 cooperating with the discharge channel 5 is provided on the discharge feeding section 42. The mixing controller 6 is electrically connected to the mixing drive motor 3. During mixing, the mixing drive motor 3 drives the mixing shaft to rotate the discharge control spiral blade 44 in the upward feeding direction; during discharge, the mixing drive motor 3 drives the mixing shaft to rotate the discharge control spiral blade 44 in the downward feeding direction. Thus, ... Figure 2As shown, during mixing, the material entering the discharge channel 5 can be pushed upward by the discharge control spiral blades 44, preventing the material from passing through the discharge channel and thus closing the discharge channel 5. At the same time, it can also cause the material near the mixing section 41 in the mixing tank 2 to move upward, thereby forming a material like... Figure 2 The material circulation path 7 shown allows materials around the mixing section 41 to quickly participate in the mixing, thus improving the mixing efficiency of the feed pellet mill. During discharge, the mixing controller 6 controls the mixing drive motor 3 to drive the mixing main axis to rotate the discharge control spiral blade 44 in the direction of downward feeding and squeeze the material downward, avoiding material blockage in the discharge channel 5 and ensuring smooth discharge from the mixing drum of the feed pellet mill.

[0028] The specific fit clearance between the discharge control spiral blade 44 and the discharge channel 5 can be determined through experiments, with the aim of ensuring that the crushed material cannot pass through the gap between the two.

[0029] The stirring controller 6 can be a PLC controller, a microcontroller, or a reversing switch. When the stirring controller 6 uses a PLC controller or a microcontroller, it can collect the moisture signal of the material from the sensor and then use its own functions to automatically control the forward and reverse rotation of the stirring drive motor 3, thereby achieving automatic switching between stirring and discharging. Of course, the stirring controller 6 can also be manually operated to switch between stirring and discharging.

[0030] In addition, the stirring component 43 of this utility model is installed on the stirring section 41 of the stirring main shaft and is directly driven by the rotation of the stirring main shaft, which has a simple structure.

[0031] In this invention, preferably, the bottom of the mixing tank 2 has a conical structure that is wider at the top and narrower at the bottom, and the discharge channel 5 is located at the lowest point of the bottom of the mixing tank 2. This structure facilitates the internal and external circulation of materials within the mixing tank 2, resulting in better mixing efficiency for the feed pellet mill.

[0032] The stirring element 43 can have various structures, such as a fan-shaped structure, a rod-shaped structure, etc. In this embodiment of the invention, for example... Figure 2 and Figure 4As shown, the stirring component 43 includes a connecting portion 431 extending radially along the stirring section 41 and a guide plate 432 disposed at the end of the connecting portion 431 away from the stirring section 41. The guide plate 432 is inclined relative to the rotational tangential direction of the connecting portion 431, and the inclination direction is such that when the stirring spindle rotates in the direction that the discharge control spiral blade 44 feeds material upward, the guide plate 432 pushes material outward from the stirring tank 2 (away from the stirring spindle). During stirring, as the guide plate 432 rotates with the stirring spindle, it pushes the material on the inner side towards the outer side of the stirring tank 2, which is more conducive to the circulation and mixing of materials in the stirring tank and reduces the generation of large amounts of dust.

[0033] The feed pellet forming mechanism 1 can be an existing flat die feed pellet forming mechanism, vertical die feed pellet forming mechanism, etc. Figure 3 and Figure 5 As shown, the feed pellet forming mechanism 1 of this utility model is a flat die feed pellet forming mechanism, including a forming cavity 11, a pellet forming template 13, a forming drive spindle 12, a reduction gearbox 16, a cutting blade 14, and a pressing roller 15. The pellet forming template 13 has forming holes. The pellet forming template 13 is horizontally arranged in the forming cavity 11 and divides the forming cavity 11 into an upper chamber 111 and a lower chamber 112. The pellet forming template 13 is rotatably engaged with the forming cavity 11 so that it can rotate within the forming cavity 11. The cutting blade 14 is installed in the lower chamber 112 and arranged below the pellet forming template 13. The lower chamber 112 has a discharge port 113. One end of the forming drive spindle 12 is connected to the output end of the reduction gearbox 16, and the other end is connected to the pellet forming template 13 to drive the pellet forming template 13 to rotate. The pressing roller 15 is installed above the pellet forming template 13. There may be one or more pressure rollers 15. In order to make the force on the granule forming template 13 more balanced, there are preferably at least two pressure rollers 15, which are evenly distributed around the circumference of the granule forming template 13. In this embodiment of the present invention, there are three pressure rollers 15.

[0034] The gearbox 16 can be any existing gear reducer.

[0035] During molding, the molding drive mechanism drives the input shaft of the reduction gearbox 16, causing the molding drive main shaft 12 to rotate. As the molding drive main shaft 12 rotates, it also drives the pellet molding template 13 and the material on it to rotate. During rotation, the material passes through the pressure roller 15, and under the action of the pressure roller 15, the material is pressed into the molding holes of the pellet molding template 13 and extruded, forming strip-shaped feed that is suspended in the pellet molding template 13. When the strip-shaped feed passes through the cutting blade 14, it is cut by the cutting blade 14 to form pellet feed, completing the molding process. The molded pellet feed is finally discharged from the outlet 113.

[0036] Referring to Chinese Patent No. CN217410692U, existing flat die feed pellet forming mechanisms employ a structure where the pellet forming template 13 is fixedly set inside the forming cavity 11, and the pressure roller 15 is mounted on the forming drive spindle 12. The forming drive spindle 12 drives the pressure roller 15 to roll circumferentially along the pellet forming template 13. In contrast, the feed pellet forming mechanism 1 of this invention uses a structure where the pellet forming template 13 is rotatably set inside the forming cavity 11, and the forming drive spindle 12 is connected to the pellet forming template 13 via a transmission connection. During forming, the pellet forming template 13 is rotated relative to the pressure roller 15 by the forming drive spindle 12, thus forming the pellet without needing to drive the pressure roller 15. Because the pellet forming template 13 is lighter than the pressure roller 15, the feed pellet forming mechanism of this invention has a lower workload, lower power requirements for the forming drive mechanism, and is more economical to use.

[0037] The gearbox 16 of this invention has a water-cooling chamber 161 inside its housing to facilitate cooling of the oil and transmission mechanism inside the gearbox.

[0038] This utility model also includes a molding drive mechanism, which is generally a motor and is connected to the input shaft of the reduction gearbox 16.

Claims

1. A feed pellet mill, comprising a stirring controller (6), a stirring drive motor (3), a stirring tank (2), and a feed pellet forming mechanism (1), wherein the bottom of the stirring tank (2) is provided with a vertically downward extending discharge channel (5), the feed pellet forming mechanism (1) is connected to the lower end of the discharge channel (5), and a vertically arranged stirring main shaft is installed inside the stirring tank (2), characterized in that: The stirring shaft includes a stirring section (41) located in the stirring tank (2) and a discharge feeding section (42) extending into the discharge channel (5). The stirring section (41) is equipped with a stirring element (43), and the discharge feeding section (42) is equipped with a discharge control spiral blade (44) that extends spirally along its axis and cooperates with the discharge channel (5). The stirring drive motor (3) is connected to the stirring spindle, and the stirring controller (6) is electrically connected to the stirring drive motor (3) to control the stirring drive motor (3) to drive the stirring spindle to rotate in the direction of upward feeding during stirring, and to control the stirring drive motor (3) to drive the stirring spindle to rotate in the direction of downward feeding during discharge.

2. The feed pellet mill as described in claim 1, characterized in that: The bottom of the mixing tank (2) is a conical structure with a larger top and a smaller bottom, and the discharge channel (5) is located at the lowest point of the bottom of the mixing tank (2).

3. The feed pellet mill as described in claim 1, characterized in that: The stirring component (43) includes a connecting part (431) extending radially along the stirring section (41) and a guide plate (432) disposed at one end of the connecting part (431) away from the stirring section (41). The guide plate (432) is inclined relative to the rotational tangential direction of the connecting part (431), and the inclination direction is such that when the stirring main axis rotates in the direction that the discharge control spiral blade (44) feeds material upward, the guide plate (432) pushes material outward in the direction of the stirring tank (2).

4. The feed pellet mill as described in claim 1, characterized in that: The feed pellet forming mechanism (1) includes a forming cavity (11), a pellet forming template (13), a forming drive spindle (12), a reduction gearbox (16), a cutting knife (14), and a pressing roller (15). The granule forming template (13) is horizontally arranged in the forming cavity (11) and divides the forming cavity (11) into an upper chamber (111) and a lower chamber (112). The granule forming template (13) is rotatably engaged with the forming cavity (11) so that it can rotate within the forming cavity (11). The cutting blade (14) is installed in the lower chamber (112) and arranged below the granule forming template (13). The lower chamber (112) is provided with a discharge port (113). One end of the molding drive spindle (12) is connected to the output end of the gearbox (16) for transmission, and the other end is connected to the particle molding template (13) to drive the particle molding template (13) to rotate. The pressure roller (15) is installed above the pellet forming template (13).

5. The feed pellet mill as described in claim 4, characterized in that: The gearbox (16) has a water-cooled cavity (161) inside its housing.

6. The feed pellet mill as described in claim 4, characterized in that: It also includes a molding drive mechanism, which is connected to the input shaft of the gearbox (16) via a transmission connection.

Images