A processing device for pellet feed

Abstract

The application discloses a kind of processing devices for granular feed, it is related to feed processing technical field, including device base, steam extrusion cylinder is provided above device base, the end of steam extrusion cylinder is conical structure, still including adjustable discharge assembly, cutting assembly, control frame, the adjustable discharge assembly includes the material hole disc of being set to the end of steam extrusion cylinder;Compared with the cumbersome process of prior art device "stop-dismantling-replace mould-calibration", positioning is more accurate, and can avoid the failure of granulation caused by docking offset;When material hole disc overturns, slope ring rotates synchronously and is in contact with the gear switch unit of corresponding gear on control frame, the number of gear switch unit is consistent with discharge hole group, the speed linkage of driving motor and cutting motor is realized;Through speed inverse proportion linkage, both protect equipment from excessive load, and also ensure the size accuracy of different specifications particles, solve the problem that the length of existing device "adjustment after particle" is not uniform.

Description

Technical Field

[0001] This invention relates to the field of feed processing technology, and in particular to a processing apparatus for pelleted feed. Background Technology

[0002] In the modern feed processing industry, pelleted feed has become the mainstream feed form in large-scale farming due to its significant advantages, such as improving livestock and poultry feeding efficiency, reducing feed waste, reducing transportation and storage losses, and facilitating the addition of trace elements. With the increasing sophistication of the farming industry, different species (such as poultry, livestock, and aquatic animals) and different growth stages of the same species (such as chicks, fattening chickens, piglets, and finishing pigs) have significantly different requirements for feed pellet sizes. For example, chick feed requires fine particles of 1-2 mm to match their esophageal diameter; fattening pig feed requires medium particles of 3-5 mm to balance feeding efficiency and digestion; beef cattle feed requires coarse particles of 6-8 mm to reduce chewing energy consumption; and aquatic seedling feed even requires micro-particles of 0.5-1 mm to avoid choking. This demand makes the "adjustability of pellet size in feed pelleting devices" a core indicator affecting the flexibility and adaptability of feed production.

[0003] However, current pellet feed processing equipment on the market (especially small and medium-sized production equipment) still has many technical pain points, making it difficult to meet the needs of efficient, precise, and stable production. The specific problems are as follows:

[0004] The core pelleting components of existing feed pelleting equipment are mostly fixed-specification pelleting dies (i.e., the diameter and arrangement of the discharge holes on the die are fixed). If it is necessary to switch to different pellet sizes, a series of cumbersome operations must be completed, including "stopping the machine → disassembling the equipment shell → removing the old die → cleaning the end of the extrusion cylinder → installing the new die → calibrating the coaxiality of the die and the extrusion cylinder → restarting the machine". Taking a common Φ300 pelleting machine as an example, a single die replacement requires 2-3 operators and takes 30-60 minutes. Moreover, during the replacement process, die installation deviations (such as misalignment with the extrusion cylinder) can easily lead to uneven material extrusion during subsequent pelleting, and may even cause wear on the die edges. This "stop-and-replace" adjustment mode not only seriously disrupts the production process, but also cannot quickly respond to the multi-specification order demands of the breeding end, and is especially unsuitable for the "multi-batch, small-volume" production scenarios of small and medium-sized feed mills.

[0005] Meanwhile, the core principle of feed pelleting is "material is extruded into strips by an extrusion cylinder → cut into pellets by a cutter." The quality of these pellets (length uniformity, forming integrity) is directly related to the matching degree of the rotational speeds of the "drive motor (which controls the material extrusion speed)" and the "cutter motor (which controls the cutting frequency)." In existing devices, the drive motor and cutter motor are mostly independently and manually controlled, lacking a linkage adjustment mechanism.

[0006] When switching to a smaller discharge hole (e.g., 1-2 mm), if the original drive motor speed is maintained, the material extrusion pressure inside the extrusion cylinder will increase sharply (up to 1.5-2.0 MPa), far exceeding the pressure limit of the granulation mold. This can easily cause the discharge hole to crack, the mold to deform, or even cause wear on the inner wall of the extrusion cylinder. If only the drive motor speed is reduced without adjusting the cutter motor simultaneously, the material extrusion speed will slow down while the cutter cutting frequency remains unchanged, resulting in excessively long particles (e.g., particles that were originally 3 mm will become 5-6 mm). This requires subsequent crushing, increasing energy consumption and material loss.

[0007] When switching to a larger diameter discharge hole (e.g., 6-8mm), if the drive motor speed is not increased, the production efficiency will drop significantly due to the material extrusion speed being too slow (capacity can be reduced by 40%-50%). If only the drive motor speed is increased without reducing the cutter motor speed, the particle length will be too short (e.g., the original 8mm particles will become 3-4mm), which does not meet the requirements of the aquaculture end for particle specifications.

[0008] This "speed disconnect" problem means that existing devices require operators to repeatedly calibrate and test when adjusting particle size, which not only increases labor costs but also makes it difficult to ensure the consistency of particle size, and poses a safety hazard of equipment overload damage.

[0009] Therefore, there is an urgent need for a processing device for pelleted feed to address the shortcomings of existing technologies and improve the flexibility, precision, and economy of feed production. Summary of the Invention

[0010] The purpose of this invention is to provide a processing apparatus for pelleted feed to solve the problems mentioned in the background art.

[0011] The technical solution of the present invention is: a processing device for pelleted feed, comprising a device base, a steam extrusion cylinder disposed above the device base, the end of the steam extrusion cylinder having a conical structure, and further comprising:

[0012] An adjustable discharge assembly includes a material hole plate disposed at the end of a steam extrusion cylinder. A rotating shaft is fixed at the center of the material hole plate. The material hole plate has multiple sets of discharge holes with different diameters, and each set of discharge holes is arranged in a ring array.

[0013] A cutting assembly, the cutting assembly including a cutting motor, the output shaft of the cutting motor being fixed with a cutting blade;

[0014] A control frame is provided, with a number of gear switch units that match the number of discharge hole groups fixed on one side of the control frame, and a slope ring is fixed at the end of the flip shaft near the control frame.

[0015] The steam extrusion cylinder has an output main shaft coaxially arranged inside. The output main shaft is fixed with an auger blade adapted to the steam extrusion cylinder. The auger blade is used to cooperate with the steam extrusion cylinder to convey materials. A drive motor is fixed at one end of the output main shaft. The drive motor, the cutting motor and multiple gear switch units are electrically connected. The speed of the drive motor and the cutting motor are inversely proportional to the speed of the gear switch units.

[0016] Preferably, a bracket is fixed to the top of the device base, the flipping shaft is rotatably mounted on the bracket, a pair of side support rods are fixed on the bracket, and a T-shaped tee pipe is fixedly installed at the ends of the side support rods. An air blower is fixedly connected to each of the three ends of the T-shaped tee pipe, and the air blower has a bucket-shaped structure.

[0017] Preferably, the control frame is fixed on the device base, one side of the T-shaped three-way pipe is fixedly connected to a gas supply pipe, a one-way gas outlet valve is fixedly installed on the gas supply pipe, the gas supply pipe is fixedly passed through the bracket and the control frame, a support hoop is fixed on the device base, the top of the support hoop is fixedly connected to the steam extrusion cylinder, and a gas cylinder is fixedly installed on one side of the support hoop.

[0018] Preferably, a mounting plate is fixed to the top of the device base, the drive motor is fixed to the top of the mounting plate, a transmission shaft is rotatably mounted on one side of the mounting plate, a support is fixed to the mounting plate near the transmission shaft, a driven rod is rotatably mounted on the support, a driven rod is fixed to the end of the driven rod that is close to the transmission shaft and has meshing transmission bevel teeth, transmission wheels are fixed to both the transmission shaft and the output main shaft, and a transmission belt is fitted on both transmission wheels.

[0019] Preferably, a rotating wheel is fixed to the end of the driven rod, a piston plate is slidably installed inside the air cylinder, a push-pull rod that slides with the air cylinder is fixed at the center of one side of the piston plate, a transmission rod is rotatably installed between the push-pull rod and the rotating wheel through a movable shaft, and an air inlet is opened at one end of the air cylinder, with a one-way air inlet valve fixedly installed inside the air inlet.

[0020] Preferably, a bearing plate is fixed to one end of the bracket, an adjusting motor is fixed to the bearing plate, a worm is fixed to the output shaft of the adjusting motor, and a worm wheel adapted to the worm is fixed to one end of the flipping shaft. The helix angle between the worm and the worm wheel is smaller than the friction angle.

[0021] Preferably, a side frame is fixed to one outer wall of the bracket, and a material collection hopper is fixed to the side frame. A motor frame is fixed to the material collection hopper, and the motor frame is fixedly connected to the cutting motor.

[0022] Preferably, a grooved ring is fixed to the outer peripheral wall of the feed hole disc, and a limit rod is fixedly installed on one side of the support frame, with one end of the limit rod slidably connected to the grooved ring.

[0023] Preferably, the slope ring is coaxially arranged with the material hole disc, and the thickest end of the slope ring corresponds to the position of the discharge hole with the largest diameter, while the thinnest end of the slope ring corresponds to the position of the discharge hole with the smallest diameter.

[0024] Preferably, a feeding hopper is fixedly connected to the top of one end of the steam extrusion cylinder.

[0025] The present invention provides an improved processing apparatus for pelleted feed, which, compared with the prior art, has the following improvements and advantages:

[0026] Firstly, compared with the cumbersome process of "stopping - disassembling - changing mold - calibration" in the existing device, the adjustment time of the present invention is reduced from 30 minutes to less than 2 minutes, and the positioning is accurate, avoiding granulation failure caused by docking misalignment.

[0027] Secondly, the present invention has a slope ring fixed at one end of the flipping shaft near the control frame. When the material hole disc flips, the slope ring rotates synchronously and abuts against the corresponding gear switch unit on the control frame. The number of gear switch units is consistent with the number of discharge hole groups, realizing the speed linkage between the drive motor and the cutting motor. Through the inverse speed linkage, the equipment is protected from excessive load, and the dimensional accuracy of particles of different specifications is ensured, solving the problem of "particles of different lengths after adjustment" in the existing device.

[0028] Thirdly, the one-way air inlet valve at one end of the air cylinder ensures that outside air enters the air cylinder in one direction. When the piston plate reciprocates, the air in the air cylinder is transported to the T-shaped three-way pipe through the air supply pipe. The one-way air outlet valve on the air supply pipe ensures that the air flows into the T-shaped three-way pipe in a directional manner, and then is blown towards the current working discharge hole area through three bucket-shaped air blowers: to blow away the residual adhesive material in the discharge hole and avoid the sudden increase in extrusion pressure caused by the discharge hole blockage. At the same time, the airflow temperature is at room temperature. When it blows onto the freshly extruded particles, it can quickly remove the residual heat on the surface of the particles, increase the cooling rate of the particles, and prevent the particles from sticking and clumping due to residual heat, thereby improving the looseness and appearance quality of the finished particles. This dual function solves the core pain points of existing devices, such as "easy clogging and easy particle sticking", thereby improving production efficiency and product quality. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a side view of the structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the overall second-view three-dimensional structure of the present invention;

[0033] Figure 4 This is a partial cross-sectional view of the steam extrusion cylinder of the present invention;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the output spindle and auger blades of the present invention;

[0035] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0036] Figure 7 This is a three-dimensional structural diagram of the feed hole disc and air blower of the present invention;

[0037] Figure 8 This is a schematic diagram of the internal structure of the air cylinder of the present invention;

[0038] Figure 9 This is a schematic diagram of the slope ring and gear switch unit structure of the present invention.

[0039] Figure label:

[0040] 1. Device base; 101. Support hoop; 102. Mounting plate; 2. Steam extrusion cylinder; 201. Feed hopper; 3. Material hole plate; 301. Discharge hole; 302. Tilting shaft; 303. Sloping ring; 4. Drive motor; 401. Output main shaft; 402. Screwdriver blade; 403. Transmission belt; 5. Bracket; 501. Side frame; 502. Collection hopper; 6. Cutting motor; 601. Motor frame; 602. Cutter; 7. Air cylinder; 701 702. Push-pull rod; 703. Transmission rod; 704. Piston plate; 705. Rotary wheel; 8. Adjusting motor; 806. Worm gear; 807. Worm wheel; 9. Control frame; 908. Gear switch unit; 10. Air supply pipe; 11. One-way air inlet valve; 12. One-way air outlet valve; 13. Air blower; 14. T-shaped tee pipe; 15. Side support rod; 16. Transmission shaft rod; 17. Transmission bevel gear; 18. Grooved ring; 19. Limiting rod; 20. Driven rod. Detailed Implementation

[0041] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] This invention provides an improved processing apparatus for pelleted feed. The technical solution of this invention is as follows:

[0043] like Figures 1 to 9 As shown, this embodiment of the invention provides a processing device for pelleted feed, including a device base 1, which is welded from Q235 steel plate (thickness 10mm, load-bearing capacity > 500kg). A steam extrusion cylinder 2 is arranged above the device base 1, and the end of the steam extrusion cylinder 2 has a conical structure. The device also includes:

[0044] The adjustable discharge assembly includes a material hole disk 3 located at the end of the steam extrusion cylinder 2. A flipping shaft 302 is fixed at the center of the material hole disk 3. The material hole disk 3 has multiple sets of discharge holes 301 with different diameter specifications, and each set of discharge holes 301 is arranged in a ring array.

[0045] The cutting assembly includes a cutting motor 6, and a cutting blade 602 is fixed to the output shaft of the cutting motor 6.

[0046] The control frame 9 has a number of gear switch units 901 that match the number of discharge holes 301 fixed on one side, and a slope ring 303 fixed on one end of the flip shaft 302 near the control frame 9.

[0047] An output main shaft 401 is coaxially arranged inside the steam extrusion cylinder 2. An auger blade 402 adapted to the steam extrusion cylinder 2 is fixed on the output main shaft 401. The auger blade 402 is used to cooperate with the steam extrusion cylinder 2 to convey materials. A drive motor 4 is fixed at one end of the output main shaft 401. The drive motor 4, the cutting motor 6 and multiple gear switch units 901 are electrically connected. The speed of the drive motor 4 and the cutting motor 6 is controlled inversely by the gear switch units 901. A slope ring 303 is fixed at one end of the tilting shaft 302 near the control frame 9. When the material hole plate 3 is tilted, the slope ring 303 rotates synchronously and abuts against the gear switch unit 901 of the corresponding gear on the control frame 9 (the number of gear switch units 901 is the same as the number of discharge holes 301, realizing the speed linkage between the drive motor 4 and the cutting motor 6).

[0048] Specifically, if switching to a small-diameter discharge hole 301 (e.g., 2mm diameter, suitable for chick feed): the slope ring 303 abuts against the corresponding gear switch unit 901, the speed of the drive motor 4 decreases from 1500r / min to 800r / min (reducing material extrusion pressure to avoid damage to the feed hole disc 3), while the speed of the cutting motor 6 increases from 2000r / min to 3000r / min (matching a slower extrusion speed to ensure a particle length of 2mm, with a deviation of <±0.1mm).

[0049] If switching to the large-diameter discharge hole 301 (e.g., 8mm diameter, suitable for beef cattle feed): the slope ring 303 abuts against the corresponding gear switch unit 901, the drive motor 4 speed increases to 2000r / min (to improve extrusion efficiency), and the cutting motor 6 speed decreases to 1500r / min (to avoid cutting the pellets too short and ensure the length is 8mm); through the inverse speed linkage, the equipment is protected from excessive load, and the dimensional accuracy of different specifications of pellets is ensured, solving the problem of "inconsistent pellet lengths after adjustment" in the existing device.

[0050] Furthermore, a bracket 5 is fixed on the top of the device base 1, and a rotating shaft 302 is rotatably mounted on the bracket 5. A pair of side support rods 15 are fixed on the bracket 5, and a T-shaped three-way pipe 14 is fixedly installed at the ends of the side support rods 15. All three ends of the T-shaped three-way pipe 14 are fixedly connected to an air blower 13, which has a bucket-shaped structure.

[0051] Furthermore, the control frame 9 is fixed on the device base 1, and a gas supply pipe 10 is fixedly connected to one side of the T-shaped three-way pipe 14. A one-way gas outlet valve 12 is fixedly installed on the gas supply pipe 10. The gas supply pipe 10 is fixedly connected through the bracket 5 and the control frame 9. A support hoop 101 is fixed on the device base 1. The top of the support hoop 101 is fixedly connected to the steam extrusion cylinder 2. Specifically, the support hoop 101 is welded and fixed to the steam extrusion cylinder 2, and a gas cylinder 7 is fixedly installed on one side of the support hoop 101.

[0052] As a further embodiment of the present invention, a mounting plate 102 is fixed to the top of the device base 1, and a drive motor 4 is fixed to the top of the mounting plate 102. A transmission shaft 16 is rotatably mounted on one side of the mounting plate 102. A support is fixed to the mounting plate 102 near the transmission shaft 16. A driven rod 20 is rotatably mounted on the support. A transmission bevel tooth 17 that meshes with each other is fixed to the end of the driven rod 20 that is close to the transmission shaft 16. Transmission wheels are fixed on both the transmission shaft 16 and the output main shaft 401. A transmission belt 403 is sleeved on both transmission wheels.

[0053] Furthermore, a rotating wheel 704 is fixed to the end of the driven rod 20, and a piston plate 703 is slidably installed inside the air cylinder 7. A push-pull rod 701 that slides with the air cylinder 7 is fixed at the center of one side of the piston plate 703. A transmission rod 702 is rotatably installed between the push-pull rod 701 and the rotating wheel 704 through a movable shaft. An air inlet is opened at one end of the air cylinder 7, and a one-way air inlet valve 11 is fixedly installed inside the air inlet. When the drive motor 4 drives the output main shaft 401 to rotate, the transmission wheel on the output main shaft 401 drives the transmission shaft rod 16 to rotate synchronously through the transmission belt 403 (the transmission belt 403 is made of polyethylene). (Material: urethane); the drive shaft 16 meshes with the drive bevel gear 17 near the end of the driven rod 20, driving the driven rod 20 and the end wheel 704 to rotate; the wheel 704 is connected to the drive rod 702 through a movable shaft. When the wheel 704 rotates, it drives the drive rod 702 to swing back and forth, thereby driving the push-pull rod 701 and the piston plate 703 in the air cylinder 7 to perform reciprocating linear motion (the frequency is proportional to the speed of the drive motor 4); there is no need to set up an additional air blower motor, and the power of the drive motor 4 is directly used, which simplifies the equipment structure, reduces energy consumption, and the air blowing frequency is synchronously adapted to the granulation conditions;

[0054] One-way air inlet valve 11 at one end of air cylinder 7 ensures that outside air enters air cylinder 7 in one direction. When piston plate 703 reciprocates, the air in air cylinder 7 is transported through air delivery pipe 10 to T-shaped three-way pipe 14 (air delivery pipe 10 is made of stainless steel; one-way air outlet valve 12 on air delivery pipe 10 (to prevent airflow reversal) ensures that air flows into T-shaped three-way pipe 14 in a directional manner, and then blown into the currently working discharge port 301 area through three bucket-shaped air blowers 13 (to expand the air blowing range).

[0055] The airflow pressure is 0.3-0.5MPa, which can directly blow away the residual adhesive material in the discharge hole 301 (especially the small diameter discharge hole 301, which is easily blocked by material adhesion), avoiding the sudden increase in extrusion pressure caused by the blockage of the discharge hole 301. The continuous running time of the equipment is extended to more than 8 hours, and no manual cleaning is required.

[0056] Meanwhile, the airflow temperature is at room temperature (25-30℃). When it blows onto the freshly extruded granules (temperature about 60-70℃), it can quickly remove the residual heat from the surface of the granules, increasing the cooling rate of the granules. The time to cool to room temperature is shortened from 5 minutes to 2 minutes, preventing the granules from sticking together and clumping due to residual heat, and improving the looseness and appearance quality of the finished granules.

[0057] This dual function addresses the core pain points of existing equipment, such as "easy clogging and easy particle adhesion," thereby improving production efficiency and product quality.

[0058] Furthermore, a support plate is fixed to one end of the bracket 5, and an adjustment motor 8 is fixed to the support plate. A worm gear 801 is fixed to the output shaft of the adjustment motor 8, and a worm wheel 802 adapted to the worm gear 801 is fixed to one end of the flipping shaft 302. The helix angle of the worm gear 801 and the worm wheel 802 is less than the friction angle. The adjustment motor 8 is specifically a stepper motor with an angle control accuracy of 0.1°. When the adjustment motor 8 starts, it will drive the worm gear 801 to rotate, and through the transmission of the worm wheel 802, drive the flipping shaft 302 to rotate forty-five degrees, thereby driving the material hole plate 3. This ensures that different sets of discharge holes 301 on the material hole plate 3 can be accurately connected to the conical end of the steam extrusion cylinder 2, realizing the replacement of the discharge holes 301. Compared with the cumbersome process of "stopping - disassembling - changing mold - calibration" of the existing device, the adjustment time of this invention is shortened from 30 minutes to less than 2 minutes, and the positioning is accurate, avoiding granulation failure due to docking misalignment.

[0059] Meanwhile, by utilizing the fact that the helix angle of the worm gear 801 and worm wheel 802 is smaller than the friction angle (specifically 3-5°, which is smaller than the steel-to-steel friction angle of 8-10°), the transmission between the two becomes self-locking, thereby improving the stability of the rotating shaft 302 during rotation. The material orifice plate 3 can be stably maintained at the working position of the target discharge hole 301. Even if the material extrusion pressure reaches 1.2MPa, the material orifice plate 3 will not deviate, ensuring the precise docking of the discharge hole 301 with the extrusion cylinder port (docking deviation <0.03mm), and ensuring the smooth operation of the granulation process.

[0060] Furthermore, a side frame 501 is fixed to one outer wall of the bracket 5, and a material collection hopper 502 is fixed on the side frame 501. A motor frame 601 is fixed on the material collection hopper 502, and the motor frame 601 is fixedly connected to the cutting motor 6.

[0061] As a further embodiment of the present invention, a grooved ring 18 is fixed to the outer peripheral wall of the material orifice plate 3, and a limiting rod 19 is fixedly installed on one side of the support frame 101. One end of the limiting rod 19 is slidably connected to the grooved ring 18. The limiting rod 19 and the grooved ring 18 cooperate to form a reinforcement effect, avoiding the misalignment of the discharge hole 301 with the port of the steam extrusion cylinder 2 due to the material extrusion pressure, and ensuring the molding consistency of particles of different specifications. Specifically, when the material orifice plate 3 is flipped, the limiting rod 19 slides along the annular groove, which plays a radial limiting role on the material orifice plate 3, preventing it from radially shifting due to gravity or vibration (shift amount < 0.05mm), and further ensuring the docking accuracy of the discharge hole 301 with the extrusion cylinder port.

[0062] Furthermore, the slope ring 303 is coaxially arranged with the material hole disc 3, and the thickest end of the slope ring 303 corresponds to the position of the discharge hole 301 with the largest diameter, while the thinnest end of the slope ring 303 corresponds to the position of the discharge hole 301 with the smallest diameter.

[0063] Furthermore, in order to facilitate the addition of feed materials into the steam extrusion cylinder 2, a feeding hopper 201 is fixedly connected to the top of one end of the steam extrusion cylinder 2.

[0064] The specific working method is as follows: When in use, feed materials are added into the steam extrusion cylinder 2. At the same time, the drive motor 4 is started, driving the output main shaft 401 and the auger blade 402 to rotate. In conjunction with the steam extrusion cylinder 2, the feed materials are conveyed and extruded into the feed hole plate 3. The feed materials are extruded into long cylindrical strips through the discharge hole 301. At the same time, the cutting motor 6 drives the cutter 602 to rotate, cutting and granulating the long cylindrical strips. The cut materials are collected through the collection hopper 502.

[0065] When it is necessary to adjust the size of the feed pellets, the adjustment motor 8 can be started. When the adjustment motor 8 starts, it will drive the worm gear 801 to rotate, and through the transmission of the worm wheel 802, it will drive the rotating shaft 302 to rotate 45 degrees, thereby driving the feed hole plate 3 to change the discharge hole 301. Specifically, when the rotating shaft 302 drives the feed hole plate 3 to rotate, the slope ring 303 at the other end of the rotating shaft 302 will rotate synchronously and abut against the corresponding gear switch unit 901. When the diameter of the discharge hole 301 at the steam extrusion cylinder 2 port is smaller, the rotation of the drive motor 4 will also decrease accordingly to avoid excessive pressure on the feed hole plate 3. At the same time, since the speed of the drive motor 4 and the cutting motor 6 are inversely proportional through the gear switch unit 901, the speed of the cutting motor 6 will increase, thereby increasing the speed of the cutter 602 and effectively reducing the size of the pellets.

[0066] Finally, when the output spindle 401 rotates, it can drive the transmission shaft 16 to rotate through the transmission belt 403, and then drive the driven rod 20 and the rotating wheel 704 to rotate through the transmission bevel gear 17. Finally, the transmission rod 702 drives the push-pull rod 701 and the piston plate 703 to reciprocate, and with the help of the one-way air inlet valve 11 and the one-way air outlet valve 12, it realizes the constant frequency air blowing into the air supply pipe 10.

[0067] Then, in conjunction with the T-shaped three-way pipe 14 and the air blower 13, air is blown into the corresponding discharge hole 301. On the one hand, the discharge hole 301 is ventilated and unclogged. On the other hand, the vented air can be blown onto the falling feed to assist in the cooling and shaping of the feed. At the same time, the larger the diameter of the discharge hole 301 at the end of the steam extrusion cylinder 2, the higher the speed of the drive motor 4. At this time, the movement frequency of the piston plate 703 increases, improving the ventilating effect to cope with the easy blockage of the small diameter discharge hole 301. At the same time, it improves the blowing effect on large particles of feed and automatically increases the cooling effect.

[0068] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A processing apparatus for pelleted feed, comprising an apparatus base (1), a steam extrusion cylinder (2) disposed above the apparatus base (1), the end of the steam extrusion cylinder (2) having a conical structure, characterized in that, Also includes: An adjustable discharge assembly includes a material hole disk (3) located at the end of the steam extrusion cylinder (2). A rotating shaft (302) is fixed at the center of the material hole disk (3). Multiple sets of discharge holes (301) with different diameters are opened on the material hole disk (3). Each set of discharge holes (301) is arranged in a ring array. The cutting assembly includes a cutting motor (6), and a cutter (602) is fixed to the output shaft of the cutting motor (6). A control frame (9) is fixed on one side, with a number of gear switch units (901) matching the number of discharge holes (301). A slope ring (303) is fixed on one end of the flip shaft (302) near the control frame (9). The steam extrusion cylinder (2) is coaxially provided with an output main shaft (401). The output main shaft (401) is fixed with an auger blade (402) adapted to the steam extrusion cylinder (2). The auger blade (402) is used to cooperate with the steam extrusion cylinder (2) to convey materials. One end of the output main shaft (401) is fixed with a drive motor (4). The drive motor (4), the cutting motor (6) and multiple gear switch units (901) are electrically connected. The speed of the drive motor (4) and the cutting motor (6) are inversely proportional to each other through the gear switch unit (901). The top of the device base (1) is fixed with a bracket (5), the flipping shaft (302) is rotatably mounted on the bracket (5), a pair of side support rods (15) are fixed on the bracket (5), and a T-shaped three-way pipe (14) is fixedly installed at the ends of the side support rods (15). The three ends of the T-shaped three-way pipe (14) are all fixedly connected to an air cylinder (13), and the air cylinder (13) has a bucket-shaped structure. The control frame (9) is fixed on the device base (1). One side of the T-shaped three-way pipe (14) is fixedly connected to the gas supply pipe (10). A one-way gas outlet valve (12) is fixedly installed on the gas supply pipe (10). The gas supply pipe (10) is fixedly connected to the bracket (5) and the control frame (9). A support hoop (101) is fixed on the device base (1). The top of the support hoop (101) is fixedly connected to the steam extrusion cylinder (2). A gas cylinder (7) is fixedly installed on one side of the support hoop (101). The top of the device base (1) is fixed with a mounting plate (102), the drive motor (4) is fixed on the top of the mounting plate (102), a transmission shaft (16) is rotatably mounted on one side of the mounting plate (102), a support is fixed on the mounting plate (102) near the transmission shaft (16), a driven rod (20) is rotatably mounted on the support, a transmission bevel tooth (17) that meshes with each other is fixed on the end of the driven rod (20) that is close to the transmission shaft (16), a transmission wheel is fixed on both the transmission shaft (16) and the output main shaft (401), and a transmission belt (403) is sleeved on both transmission wheels. The driven rod (20) has a rotating wheel (704) fixed at its end. A piston plate (703) is slidably installed inside the air cylinder (7). A push-pull rod (701) that slides with the air cylinder (7) is fixed at the center of one side of the piston plate (703). A transmission rod (702) is rotatably installed between the push-pull rod (701) and the rotating wheel (704) through a movable shaft. An air inlet is opened at one end of the air cylinder (7), and a one-way air inlet valve (11) is fixedly installed inside the air inlet. The slope ring (303) is coaxially arranged with the material hole plate (3), and the thickest end of the slope ring (303) corresponds to the position of the discharge hole (301) with the largest diameter, and the thinnest end of the slope ring (303) corresponds to the position of the discharge hole (301) with the smallest diameter.

2. The processing apparatus for pelleted feed according to claim 1, characterized in that: One end of the bracket (5) is fixed with a bearing plate, and an adjusting motor (8) is fixed on the bearing plate. The output shaft of the adjusting motor (8) is fixed with a worm (801). One end of the flipping shaft (302) is fixed with a worm wheel (802) that is compatible with the worm (801). The helix angle of the worm (801) and the worm wheel (802) is smaller than the friction angle.

3. The processing apparatus for pelleted feed according to claim 1, characterized in that: A side frame (501) is fixed to one side of the outer wall of the bracket (5), and a material collection hopper (502) is fixed on the side frame (501). A motor frame (601) is fixed on the material collection hopper (502), and the motor frame (601) is fixedly connected to the cutting motor (6).

4. The processing apparatus for pelleted feed according to claim 1, characterized in that: The outer peripheral wall of the feed hole disc (3) is fixed with a grooved ring (18), and a limit rod (19) is fixedly installed on one side of the support hoop (101). One end of the limit rod (19) is slidably connected to the grooved ring (18).

5. A processing apparatus for pelleted feed according to any one of claims 1-4, characterized in that: The top of one end of the steam extrusion cylinder (2) is fixedly connected to a feeding hopper (201).

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