A feed expander

Abstract

This utility model relates to the field of feed processing technology and provides a feed extruder, including a cylinder with support plates fixed on both sides of the bottom end of the cylinder. A screw is installed inside the cylinder, a drive motor is installed on the outer wall of the cylinder at one end of the screw, and a discharge port plate is fixed on the outer wall of the cylinder at the other end of the screw. This utility model features a metering structure. When feed enters the feed hopper, it falls into the metering trough. At this time, a rotating rod rotates, driving the metering trough to rotate via a metering seat. Simultaneously, the rotating rod drives a stirring shaft to rotate via a transmission belt. Under the action of the equally spaced metering troughs, the feed is metered into the cylinder. The stirring shaft drives a stirring rod to stir the feed inside the feed hopper, effectively preventing feed bridging. This device facilitates the prevention of feed bridging, thereby improving the applicability of the feed extruder in use.

Description

Technical Field

[0001] This utility model relates to the field of feed processing technology, and in particular to a feed extruder. Background Technology

[0002] Feed is a general term for food used to feed animals. It provides the nutrients needed by animals and promotes their growth and health. During the processing of feed, the feed raw materials need to be extruded in a high temperature and high pressure environment to change the physical form and internal structure of the feed, thereby improving the taste and nutritional value of the feed. Therefore, a feed extruder is used.

[0003] To address this, patent CN214340024U discloses a feed extruder, including a base with an extruder body fixedly connected to it. The extruder body has a feed hopper at its upper side and a discharge port at its lower side. A screw rod is located inside the extruder body, and a drive mechanism is mounted on the base. The outer diameter of the screw rod gradually decreases from the feed hopper end to the discharge port end. A cutting mechanism is located inside the extruder body at the discharge port end. A collection box is fixedly connected to the base, and a feed pipe is provided on the collection box. First, the raw material is placed in the feed hopper. Then, the drive mechanism rotates the screw rod, causing the raw material to move towards the discharge port end. During this movement, the material is heated and extruded. After extrusion, it is cut into granules by the cutting mechanism and then enters the collection box through the feed pipe from the discharge port. This device allows the extruded material to directly enter the collection box for cooling and also facilitates collection.

[0004] Although the feed extruders mentioned above allow the extruded feed to be directly cooled in the collection box after extrusion, and are convenient to collect, their applicability is low because they are inconvenient for quantitative feeding and cannot effectively prevent feed bridging. Summary of the Invention

[0005] The purpose of this invention is to provide a feed extruder to solve the problem of inconvenient quantitative feeding in existing feed extruders.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a feed extruder, including a cylinder;

[0007] Support plates are fixed on both sides of the bottom end of the cylinder. A screw is installed inside the cylinder. A drive motor is installed on the outer wall of the cylinder at one end of the screw. A discharge hole plate is fixed on the outer wall of the cylinder at the other end of the screw. A heating structure is provided on the outside of the cylinder.

[0008] A metering structure is fixed to one side of the top of the cylinder. The metering structure includes a metering cylinder fixed to one side of the top of the cylinder. A rotating rod is provided inside the metering cylinder. A metering seat is fixed to the outside of the rotating rod. Metering grooves are evenly opened on the outside of the metering seat.

[0009] A lifting structure is provided at one end of the discharge orifice plate.

[0010] When using this device, the quantitative structure facilitates the prevention of feed bridging, thereby improving the applicability of the feed extruder; the heating structure facilitates extrusion, thereby improving the stability of the feed extruder during use; and the lifting structure facilitates cleaning, thereby improving the convenience of the feed extruder during use.

[0011] Preferably, the heating structure includes a heating base, an exhaust pipe, a temperature sensor, a heating chamber, and an air inlet pipe. The heating base is fixed to the outside of the cylinder, and a heating chamber is provided inside the heating base. A temperature sensor passes through the top of the cylinder at one end of the heating base. An exhaust pipe is fixed to one side of the bottom of the heating base, and an air inlet pipe is fixed to one side of the top of the heating base. The flange facilitates external steam connection, allowing steam to enter the heating chamber. By creating a high-temperature environment inside the heating chamber, heat is transferred to the feed inside the cylinder, raising its temperature. At this time, pressure is applied via a screw. As the pressure gradually increases, the moisture in the feed gradually evaporates, and its volume gradually expands.

[0012] Preferably, a first one-way valve is installed inside the exhaust pipe, and a second one-way valve is installed inside the intake pipe. The output of the temperature sensor is electrically connected to the input of the first one-way valve via a microcontroller. A flange is fixed to one end of both the exhaust pipe and the intake pipe. Under the action of the temperature sensor, the temperature inside the cylinder can be monitored in real time. When the temperature reaches a preset value, the temperature sensor will control the first one-way valve to open via the microcontroller, allowing excess steam to be discharged from the exhaust pipe.

[0013] Preferably, the lifting structure includes a fixed frame, an electric push rod, a sliding rod, a splash guard, a cutting motor, a turntable, a discharge port, and a cutter. The fixed frame is located at one end of the discharge orifice plate. The electric push rod passes through the top of the fixed frame, and the splash guard is fixed to the bottom end of the electric push rod. Sliding rods pass through the interior of the fixed frame on both sides of the electric push rod. A cutting motor is installed at one end of the splash guard, and the output end of the cutting motor extends into the interior of the splash guard and is fixed to the turntable. Cutters are evenly fixed on one side of the turntable, and the discharge port passes through one side of the bottom end of the splash guard. When the turntable rotates, it drives the cutter to cut the feed discharged through the discharge orifice plate. The splash guard prevents the cut feed from splashing, allowing the feed to fall through the discharge port.

[0014] Preferably, the slide rod and the fixed frame form a sliding structure, with the bottom end of the slide rod fixedly connected to the top end of the splash guard, and the splash guard and the cylinder forming a sliding structure through the discharge port. The slide rod enhances the stability of the splash guard during movement, and when the splash guard is detached from the cylinder, it facilitates maintenance and cleaning of the cutter and discharge plate.

[0015] Preferably, a drive motor is installed on the outer wall of the metering cylinder at one end of the rotating rod, and a second drive wheel is fixed to the other end of the rotating rod outside the metering cylinder. A feed hopper is fixed to the top of the metering cylinder, and a stirring shaft is provided at the bottom of the feed hopper. Stirring rods are evenly fixed to the outer wall of the stirring shaft, and a first drive wheel is fixed to one end of the stirring shaft outside the feed hopper. A drive belt is sleeved on the outer side of both the first and second drive wheels. When feed enters the feed hopper, the feed falls into the metering trough. At this time, the rotating rod rotates, and the rotating rod drives the metering trough to rotate through the metering seat. At the same time, the rotating rod drives the stirring shaft to rotate through the drive belt.

[0016] Preferably, one end of the rotating rod extends to the outside of the metering cylinder and is fixedly connected to the output end of the drive motor. The metering grooves are evenly distributed inside the metering seat. Under the action of the evenly spaced metering grooves, the feed is metered into the inside of the cylinder. The stirring shaft drives the stirring rod to stir the feed inside the feed hopper, thereby effectively preventing feed bridging.

[0017] Preferably, one end of the screw extends to the outside of the cylinder and is fixedly connected to the output end of the drive motor, while the other end of the screw extends to the inside of the discharge orifice plate and forms a rotating structure with the discharge orifice plate. The screw propels the feed continuously forward within the cylinder, causing the feed to be discharged through the discharge orifice plate.

[0018] The feed extruder provided by this utility model has the following advantages:

[0019] By incorporating a metering structure, when feed enters the hopper, it falls into the metering trough. At this point, the rotating rod rotates, which in turn drives the metering trough to rotate via the metering seat. Simultaneously, the rotating rod drives the stirring shaft to rotate via the transmission belt. Under the action of the equally spaced metering troughs, the feed enters the cylinder in a metered manner. The stirring shaft drives the stirring rod to stir the feed inside the hopper, thereby effectively preventing feed bridging. This device facilitates the prevention of feed bridging, thus improving the applicability of the feed extruder during use.

[0020] Equipped with a heating structure, the flange facilitates external steam connection, allowing steam to enter the heating chamber and create a high-temperature environment. Heat is transferred to the feed inside the cylinder, raising its temperature. The screw then applies pressure, causing the feed to gradually expand as moisture evaporates. A temperature sensor monitors the internal temperature in real time. When the temperature reaches a preset value, the sensor, controlled by a microcontroller, opens the first check valve, allowing excess steam to escape through the exhaust pipe. This facilitates the extrusion process and improves the stability of the feed extruder during operation.

[0021] With a lifting structure, when the turntable rotates, it drives the cutter to cut the feed discharged through the discharge port plate. The anti-splash frame prevents the cut feed from splashing, allowing it to fall through the discharge port. The sliding rod enhances the stability of the anti-splash frame during movement. When the anti-splash frame is detached from the cylinder, it facilitates the maintenance and cleaning of the cutter and discharge port plate, thus enabling the device to be easy to clean and improving the convenience of using the feed extruder. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0024] Figure 3 This is a three-dimensional structural schematic diagram of the lifting structure of this utility model, showing the main cross-sectional view.

[0025] Figure 4 This is a three-dimensional structural schematic diagram of the quantitative structure of this utility model from a side cross-section.

[0026] Figure 5 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.

[0027] The following are the annotations in the figure: 1. Cylinder; 2. Drive motor; 3. Support plate; 4. Heating structure; 401. Heating seat; 402. Exhaust pipe; 403. Temperature sensor; 404. Heating chamber; 405. Air inlet pipe; 5. Lifting structure; 501. Fixing frame; 502. Electric push rod; 503. Slide rod; 504. Splash guard; 505. Cutting motor; 506. Turntable; 507. Discharge port; 508. Cutter; 6. Metering structure; 601. Metering cylinder; 602. Rotating rod; 603. Metering seat; 604. Drive motor; 605. Metering trough; 606. Feed hopper; 607. Stirring shaft; 608. Stirring rod; 609. First drive wheel; 610. Drive belt; 611. Second drive wheel; 7. Screw; 8. Discharge plate. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-5 This utility model provides a feed extruder, including a cylinder 1. Support plates 3 are fixed to both sides of the bottom end of the cylinder 1. A screw 7 is installed inside the cylinder 1. A drive motor 2 is installed on the outer wall of the cylinder 1 at one end of the screw 7, and a discharge port plate 8 is fixed on the outer wall of the cylinder 1 at the other end of the screw 7. A heating structure 4 is provided on the outer side of the cylinder 1. The heating structure 4 includes a heating seat 401, an exhaust pipe 402, a temperature sensor 403, a heating chamber 404, and an air inlet pipe 405. The heating seat 401 is fixed to the outer side of the cylinder 1, and a heating chamber 404 is provided inside the heating seat 401. The top of the cylinder 1 penetrates one end of the heating seat 401. The device includes a temperature sensor 403, an exhaust pipe 402 fixed to one side of the bottom of the heating base 401, an air inlet pipe 405 fixed to one side of the top of the heating base 401, a first one-way valve inside the exhaust pipe 402, a second one-way valve inside the air inlet pipe 405, an output terminal of the temperature sensor 403 electrically connected to the input terminal of the first one-way valve via a microcontroller, a flange fixed to one end of both the exhaust pipe 402 and the air inlet pipe 405, one end of the screw 7 extending to the outside of the cylinder 1 and fixedly connected to the output terminal of the drive motor 2, and the other end of the screw 7 extending to the inside of the discharge orifice plate 8 and forming a rotating structure with the discharge orifice plate 8.

[0030] Reference Figure 1 and Figure 2 As shown, steam is connected to the flange and enters the heating chamber 404. A high-temperature environment is created inside the heating chamber 404, and heat is transferred to the feed inside the cylinder 1, causing the feed to heat up. At this time, the screw 7 pressurizes the feed. As the pressure gradually increases, the moisture in the feed gradually evaporates and the volume gradually expands. Under the action of the temperature sensor 403, the temperature inside the cylinder 1 can be monitored in real time. When the temperature reaches the preset value, the temperature sensor 403 will control the first one-way valve to open through the microcontroller, so that the exhaust pipe 402 can discharge excess steam and start the drive motor 2. The drive motor 2 drives the screw 7 to rotate, and the screw 7 will push the feed to move forward continuously inside the cylinder 1, so that the feed is discharged through the discharge orifice plate 8.

[0031] A metering structure 6 is fixed to one side of the top of the cylinder 1. The metering structure 6 includes a metering cylinder 601 fixed to one side of the top of the cylinder 1. A rotating rod 602 is provided inside the metering cylinder 601, and a metering seat 603 is fixed to the outside of the rotating rod 602. Metering grooves 605 are evenly distributed on the outside of the metering seat 603. A drive motor 604 is installed on the outer wall of the metering cylinder 601 at one end of the rotating rod 602, and a second drive wheel 611 is fixed to the other end of the rotating rod 602 extending to the outside of the metering cylinder 601. A metering cylinder 601 is fixed to the top of the cylinder. The feed hopper 606 has a stirring shaft 607 at its bottom. Stirring rods 608 are evenly fixed on the outer wall of the stirring shaft 607. One end of the stirring shaft 607 extends to the outside of the feed hopper 606 and is fixed with a first drive wheel 609. Both the first drive wheel 609 and the second drive wheel 611 are fitted with drive belts 610. One end of the rotating rod 602 extends to the outside of the metering cylinder 601 and is fixedly connected to the output end of the drive motor 604. The metering grooves 605 are evenly distributed inside the metering seat 603.

[0032] Reference Figure 2 and Figure 4 As shown, when feed is poured into the feed hopper 606, it falls into the metering trough 605. At this time, the drive motor 604 is started, which drives the rotating rod 602 to rotate. The rotating rod 602 drives the metering trough 605 to rotate through the metering seat 603. At the same time, the rotating rod 602 drives the stirring shaft 607 to rotate through the transmission belt 610. Under the action of the equally spaced metering troughs 605, the feed is metered into the cylinder 1. The stirring shaft 607 drives the stirring rod 608 to stir the feed inside the feed hopper 606, thereby effectively preventing the feed from bridging.

[0033] A lifting structure 5 is provided at one end of the discharge orifice plate 8. The lifting structure 5 includes a fixed frame 501, an electric push rod 502, a slide rod 503, a splash guard 504, a cutting motor 505, a turntable 506, a discharge port 507, and a cutter 508. The fixed frame 501 is located at one end of the discharge orifice plate 8. The electric push rod 502 passes through the top of the fixed frame 501, and the splash guard 504 is fixed to the bottom of the electric push rod 502. Slide rods 503 pass through the interior of the fixed frames 501 on both sides of the electric push rod 502. 03. A cutting motor 505 is installed at one end of the splash guard 504. The output end of the cutting motor 505 extends into the interior of the splash guard 504 and is fixed with a turntable 506. A cutter 508 is evenly fixed on one side of the turntable 506. A discharge port 507 passes through one side of the bottom end of the splash guard 504. The slide rod 503 and the fixing frame 501 form a sliding structure. The bottom end of the slide rod 503 is fixedly connected to the top end of the splash guard 504. The splash guard 504 and the cylinder 1 form a sliding structure through the discharge port 507.

[0034] Reference Figure 2 and Figure 3As shown, the cutting motor 505 is started, which drives the turntable 506 to rotate. The turntable 506 drives the cutter 508 to cut the feed discharged through the discharge port plate 8. Under the action of the anti-splash frame 504, the cut feed is prevented from splashing, and the feed falls through the discharge port 507. The electric push rod 502 is started, which drives the anti-splash frame 504 to move up and down. The anti-splash frame 504 drives the slide rod 503 to move inside the fixed frame 501. Under the action of the slide rod 503, the stability of the anti-splash frame 504 during movement is enhanced. When the anti-splash frame 504 is separated from the cylinder 1, it is convenient to maintain and clean the cutter 508 and the discharge port plate 8.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feed extruder, comprising a cylinder (1); characterized in that: Support plates (3) are fixed on both sides of the bottom end of the cylinder (1). A screw (7) is provided inside the cylinder (1). A drive motor (2) is installed on the outer wall of the cylinder (1) at one end of the screw (7). A discharge hole plate (8) is fixed on the outer wall of the cylinder (1) at the other end of the screw (7). A heating structure (4) is provided on the outside of the cylinder (1). A metering structure (6) is fixed on one side of the top of the cylinder (1). The metering structure (6) includes a metering cylinder (601) fixed on one side of the top of the cylinder (1). A rotating rod (602) is provided inside the metering cylinder (601). A metering seat (603) is fixed outside the rotating rod (602). Metering grooves (605) are evenly opened on the outer side of the metering seat (603). A lifting structure (5) is provided at one end of the discharge orifice plate (8).

2. The feed extruder according to claim 1, characterized in that: The heating structure (4) includes a heating seat (401), an exhaust pipe (402), a temperature sensor (403), a heating chamber (404), and an air inlet pipe (405). The heating seat (401) is fixed to the outside of the cylinder (1). The heating chamber (404) is provided inside the heating seat (401). The temperature sensor (403) passes through the top of the cylinder (1) at one end of the heating seat (401). An exhaust pipe (402) is fixed to one side of the bottom end of the heating seat (401). An air inlet pipe (405) is fixed to one side of the top end of the heating seat (401).

3. A feed extruder according to claim 2, characterized in that: The exhaust pipe (402) is equipped with a first one-way valve, and the intake pipe (405) is equipped with a second one-way valve. The output end of the temperature sensor (403) is electrically connected to the input end of the first one-way valve through a microcontroller. A flange is fixed at one end of both the exhaust pipe (402) and the intake pipe (405).

4. A feed extruder according to claim 1, characterized in that: The lifting structure (5) includes a fixed frame (501), an electric push rod (502), a slide rod (503), a splash guard (504), a cutting motor (505), a turntable (506), a discharge port (507), and a cutter (508). The fixed frame (501) is located at one end of the discharge hole plate (8). The electric push rod (502) passes through the top of the fixed frame (501), and the splash guard (504) is fixed to the bottom end of the electric push rod (502). The electric push rod (502) has a sliding rod (503) running through the inside of the fixing bracket (501) on both sides. A cutting motor (505) is installed at one end of the splash guard (504). The output end of the cutting motor (505) extends into the inside of the splash guard (504) and is fixed with a turntable (506). A cutter (508) is evenly fixed on one side of the turntable (506). A discharge port (507) runs through one side of the bottom end of the splash guard (504).

5. A feed extruder according to claim 4, characterized in that: The slide rod (503) and the fixed frame (501) form a sliding structure. The bottom end of the slide rod (503) is fixedly connected to the top end of the splash guard (504). The splash guard (504) and the cylinder (1) form a sliding structure through the discharge port (507).

6. A feed extruder according to claim 1, characterized in that: A drive motor (604) is installed on the outer wall of the metering cylinder (601) at one end of the rotating rod (602). The other end of the rotating rod (602) extends to the outside of the metering cylinder (601) and is fixed with a second drive wheel (611). A feed hopper (606) is fixed at the top of the metering cylinder (601). A stirring shaft (607) is provided at the bottom of the feed hopper (606). Stirring rods (608) are evenly fixed on the outer wall of the stirring shaft (607). One end of the stirring shaft (607) extends to the outside of the feed hopper (606) and is fixed with a first drive wheel (609). A drive belt (610) is sleeved on the outer side of both the first drive wheel (609) and the second drive wheel (611).

7. A feed extruder according to claim 6, characterized in that: One end of the rotating rod (602) extends to the outside of the metering cylinder (601) and is fixedly connected to the output end of the drive motor (604). The metering grooves (605) are evenly distributed inside the metering seat (603).

8. A feed extruder according to claim 1, characterized in that: One end of the screw (7) extends to the outside of the cylinder (1) and is fixedly connected to the output end of the drive motor (2). The other end of the screw (7) extends to the inside of the discharge orifice plate (8) and forms a rotating structure with the discharge orifice plate (8).

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