Granulation equipment for pet feed production and processing

Abstract

The invention belongs to the technical field of organic fertilizer and manufacturing, and particularly relates to granulation equipment for pet feed production and processing, the granulation equipment comprises a driving motor and a granulation assembly, a transmission shaft of the driving motor passes through a speed reducer and then is connected with a granulation shaft of the granulation assembly through two sets of conical transmission teeth, and the granulation assembly further comprises a flat die and a compression roller shaft. The granulation shaft correspondingly penetrates through a through hole in the center of the flat die, and an annular groove surface is formed in the top of the flat die. The flat die is sealed through the auxiliary die to preheat the granulation assembly, the temperature of the granulation assembly is high, the airflow assembly and the discharging hopper are oppositely arranged, external air passes through the airflow assembly and the discharging hopper to form air convection, the temperature difference is formed above and below the flat die, the temperature in the granulation assembly is high, the temperature below the flat die is low, and then the air pressure difference is achieved; furthermore, the materials in the granulation assembly are pushed out under the action of mechanical extrusion and pressure difference, so that the problem of granulation blockage in the long-time starting process of granulation equipment is solved.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer and manufacturing, in particular to granulating equipment for producing and processing pet feed. Background Art

[0002] Organic feed is a feed product produced by an organic production system using organic feed raw materials in accordance with relevant organic feed standards. Organic feed does not use chemically synthesized drugs and additives, which helps reduce the accumulation of harmful substances in animals and thus reduce the occurrence of diseases.

[0003] The existing patent (publication number is CN118179370B) and a feed pelletizer, this patent starts the rotating component to rotate the positions of pelletizing fan plate 1, pelletizing fan plate 2, pelletizing fan plate 3 and pelletizing fan plate 4, so that the positions of pelletizing fan plates with different columnar hole sizes are adjusted, and a pelletizing fan plate suitable for the needs is found and will not be blocked by the blocking component. After the adjustment is completed, the pelletizing work is carried out, and the pelletizing fan plates of different sizes can be quickly adjusted to produce feed pellets of different sizes, thereby realizing the production of feed pellets of different sizes, improving the flexibility of the production line, meeting the feeding needs of different animals, improving production efficiency, and increasing the scope of application of the device. Since the current granulation adopts the extrusion discharging method, when the pressure is not uniform or there is a lack of material, a large amount of residue will appear on the pelletizing fan plate, and hardening and blockage will occur due to water loss, resulting in the need to clean the pelletizing fan plate before starting the machine again;

[0004] The existing patent (publication number is CN116212743B) and a flat die pellet machine that can improve the utilization rate of biomass raw materials. After the biomass raw materials enter the pelletizing bin through the feed hopper, the main shaft rotates under the drive of the power mechanism, and the main shaft drives the pressing roller in the pelletizing bin to start working. The biomass raw materials are crushed by the crusher and move downward, enter the first layer of pressing rollers and flat dies and perform the first extrusion molding, and then enter the second layer of pressing rollers and flat dies and perform the second extrusion molding, and then use the cutter to cut the biomass into biomass particles of the required length, and the biomass particles fall into the feed chute to complete the entire pelletizing process. The patent is through rotation, rolling, crushing, the first The laminating roller, flat die, second pressing roller and flat die, in the whole granulation process, the temperature of the initial granulation equipment is relatively low. In the absence of temperature, the feed cannot be gelatinized, which affects the quality of the organic feed. After running for 5 minutes, the mechanical friction will generate a lot of heat, which will promote the gelatinization of starch and make the organic matter in the feed semi-mature. However, after working continuously for more than 30 minutes, the temperature above and below the granulation bin will rise, and some flat dies will be blocked or the discharge will be not smooth, and the feed pellets themselves will be overheated and cannot be directly bagged. They need to be spread out to dissipate heat, which is prone to condensation and stickiness. In addition, due to continuous operation, the materials in the granulation bin are always in a piled state, and the water vapor is difficult to evaporate, and the feed lacks hardness.

[0005] Therefore, we propose a granulating equipment for the production and processing of pet feed, which can quickly remove the temperature through the airflow component, which is conducive to using the temperature difference to form a pressure difference so that the materials can be discharged in coordination under the action of pressure, reducing blockage. More oxygen is introduced through the airflow component, so that the semi-mature feed is in contact with oxygen to further gelatinize the starch, which helps to form a more uniform and stable feed particle structure. At the same time, the airflow can remove the external moisture and powder of the feed particles, making the feed particles hardened, more durable for storage, and can be directly bagged. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a granulating device for producing and processing pet feed to solve the problems existing in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a granulating device for producing and processing pet feed, comprising a driving motor and a granulating component, the transmission shaft of the driving motor passes through a reducer, and then is connected to the granulating shaft of the granulating component by two groups of conical transmission teeth, the granulating component also comprises a flat die and a pressure roller shaft, the granulating shaft passes through the through hole corresponding to the center position of the flat die, the top of the flat die is provided with an annular groove surface, and the surface of the annular groove surface is evenly provided with granulating holes, the outer wall of the granulating shaft is symmetrically connected with two groups of pressure roller shafts, the bottom of the flat die is provided with a rotating auxiliary die, and the auxiliary die is rotated to close the granulating holes of the flat die, the side wall below the granulating component is provided with an opening, and an airflow component is provided at the opening, the pressure roller shaft is located in the annular groove surface of the flat die to generate heat by annular rolling friction, the airflow component accelerates the air flow rate below the flat die, and the pressure difference is formed by the temperature difference above and below the flat die.

[0008] Furthermore: the top of the granulation component is connected to a feed cylinder, the outer wall of the granulation component is provided with a discharge hopper, and the discharge hopper and the airflow component are symmetrically arranged.

[0009] Furthermore: the surface of the auxiliary mold is provided with a hole body with the same position as the granulation hole on the flat mold, the surface of the auxiliary mold that fits the flat mold is provided with a sliding groove, the outer surface of the flat mold is provided with a sliding block matching the sliding groove, the rotation of the sliding block and the sliding groove allows the auxiliary mold to rotate alone, and the hole body on the auxiliary mold and the granulation hole on the flat mold are staggered to form a closed shape.

[0010] Further: the airflow component includes a fan, a first filter and a second filter, the fan is located between the first filter and the second filter, and the airflow of the fan is directed toward the corresponding discharge hopper.

[0011] Furthermore: the airflow component also includes a circulation pipe and a circulation pump, the circulation pipe is located between the second filter screen and the fan, and the first and last ends of the circulation pipe are connected to the circulation pump accordingly.

[0012] Further: a temperature sensor is placed in the groove on the outer surface of the flat mold.

[0013] Furthermore: a locking nut is screwed on the top of the granulation shaft, and the outer walls of the two groups of pressure roller shafts are provided with semicircular groove surfaces, and the two groups of pressure roller shafts roll in a ring shape with the granulation shaft as the center.

[0014] Furthermore: a ring sleeve is nested and installed on the granulation shaft below the flat die, and pelletizing knives are symmetrically arranged on both sides of the ring sleeve, and the ring sleeve rotates synchronously with the granulation shaft.

[0015] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0016] 1) The granulating equipment for producing and processing pet feed of the present invention, through the setting of the auxiliary mold, through the auxiliary mold fitting the flat mold, the hole body on the auxiliary mold corresponds to the granulating hole of the flat mold, does not affect the normal granulating function, and by grasping the auxiliary mold and rotating it, the sliding block of the flat mold in a fixed state slides in the sliding groove of the auxiliary mold, so that the hole body of the auxiliary mold and the granulating hole of the flat mold are staggered, and then the auxiliary mold is closed to the flat mold, and then the granulating component is started, which can quickly increase the mechanical temperature, so that the organic feed enters semi-maturity under the action of high temperature, which is beneficial to ensure the stability of feed quality and improve feed quality.

[0017] 2) The granulating equipment for producing and processing pet feed of the present invention, through the setting of the airflow component, preheats the granulation component, so that the organic feed enters semi-maturity, and the airflow component allows the granulated feed to quickly contact oxygen, so that the starch in the organic feed is gelatinized and the enzymatic reaction is promoted. At the same time, the airflow can take away the temperature and surface moisture of the granulated feed, so as to avoid the heat being unable to volatilize quickly after direct bagging, and the long-term high temperature affecting the feed quality. At the same time, the loss of moisture on the outer wall of the feed will increase the hardness of the feed, which is conducive to the bagging of the granulated feed.

[0018] 3) The granulating equipment for pet feed production and processing of the present invention is arranged through an airflow component and an auxiliary mold. During the flat die granulation process, due to high temperature and gelatinization of feed starch, the granulation holes of the flat die will be blocked, affecting the granulation effect. The flat die is closed by the auxiliary mold to preheat the granulation component, so that the temperature of the granulation component is relatively high. The airflow component and the discharge hopper are relatively arranged so that the external air passes through the airflow component and the discharge hopper to form air convection, so that a temperature difference is formed above and below the flat die, the temperature inside the granulation component is higher, and the temperature below the flat die is lower, thereby causing an air pressure difference. Then, the material in the granulation component is pushed out under the action of mechanical extrusion and pressure difference, which is conducive to solving the problem of granulation blockage during the long-term startup of the granulation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the disassembled structure of the granulation component of the present invention;

[0021] Figure 3 It is a schematic diagram of the combined structure of the granulation assembly of the present invention;

[0022] Figure 4 It is a schematic diagram of the flat mold structure of the present invention;

[0023] Figure 5 It is a schematic cross-sectional view of the granulation component and the airflow component structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the airflow component of the present invention;

[0025] Figure 7 It is a schematic diagram of the transmission structure of the drive motor of the present invention.

[0026] The accompanying drawings are marked as follows: 1. driving motor; 2. reducer; 3. feeding barrel; 4. granulating assembly; 41. locking nut; 42. granulating shaft; 43. pressure roller shaft; 44. through hole; 45. granulating hole; 46. flat die; 461. sliding block; 462. auxiliary die; 463. sliding groove; 464. temperature sensor; 47. ring sleeve; 48. pelletizing knife; 49. conical transmission gear; 5. discharge hopper; 6. airflow assembly; 61. first filter screen; 62. fan; 63. circulation pipe; 64. second filter screen; 65. circulation pump. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the structures involved in the present invention are not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0028] Example:

[0029] See also Figure 1-7 The present invention provides a technical solution: a granulating device for producing and processing pet feed, comprising a driving motor 1 and a granulating component 4, wherein the top of the granulating component 4 is connected with a feeding cylinder 3, and the organic feed material is added into the granulating component 4 through the feeding cylinder 3, and the outer wall of the granulating component 4 is provided with a discharge hopper 5, and the granulated feed is discharged through the discharge hopper 5, and the discharge hopper 5 and the airflow component 6 are symmetrically arranged, and the external air can form air convection through the discharge hopper 5 and the airflow component 6;

[0030] The transmission shaft of the driving motor 1 passes through the reducer 2 and is then connected to the granulating shaft 42 of the granulating assembly 4 by two sets of conical transmission teeth 49. By starting the driving motor 1, the transmission shaft passes through the reducer 2 to increase the torque, and the power direction is changed by the two sets of conical transmission teeth 49, so that the driving motor 1 drives the granulating shaft 42 to rotate.

[0031] The granulation assembly 4 also includes a flat die 46 and a pressure roller shaft 43. The granulation shaft 42 passes through the through hole 44 at the center of the flat die 46. The top of the flat die 46 is provided with an annular groove surface. The surface of the annular groove surface is evenly provided with granulation holes 45. The inner diameter of the granulation hole 45 represents the size of the feed granulation. The size of the feed granulation can be changed by replacing the flat die 46. The outer wall of the granulation shaft 42 is symmetrically connected with two groups of pressure roller shafts 43. The outer walls of the two groups of pressure roller shafts 43 are provided with semicircular groove surfaces. The two groups of pressure roller shafts 43 roll in an annular manner with the granulation shaft 42 as the center point. The semicircular groove surface of the outer wall can reciprocately crush the feed through the annular rolling of the pressure roller shaft 43. Under the rolling extrusion of the roller 43, the crushed feed is squeezed into the granulation hole 45 of the flat die 46. A locking nut 41 is screwed on the top of the granulation shaft 42, and the granulation shaft 42 is locked and fixed by the locking nut 41. It should be noted that in the case where the granulation component 4 does not produce pellets, it is often because the locking nut 41 is not screwed in place. A ring sleeve 47 is nested and installed on the granulation shaft 42 below the flat die 46. Pellet cutters 48 are symmetrically arranged on both sides of the ring sleeve 47. The ring sleeve 47 rotates synchronously with the granulation shaft 42. The feed passes through the granulation hole 45 of the flat die 46 and becomes a long strip. The ring sleeve 47 of the granulation shaft 42 drives the cutting knife to rotate, and the long strip feed is cut into pellets.

[0032] The bottom of the flat die 46 is provided with a rotating auxiliary die 462, and the auxiliary die 462 is rotated to close the granulation holes 45 of the flat die 46. The surface of the auxiliary die 462 is provided with holes in the same position as the granulation holes 45 on the flat die 46. In the normal granulation process, the holes on the auxiliary die 462 correspond to the positions of the granulation holes 45 on the flat die 46 one by one. The surface of the auxiliary die 462 that fits the flat die 46 is provided with a sliding groove 463, and the outer surface of the flat die 46 is provided with a sliding block 461 that matches the sliding groove 463. The rotation of the sliding block 461 and the sliding groove 463 allows the auxiliary die 462 to rotate alone, and the holes on the auxiliary die 462 and the granulation holes 45 on the flat die 46 are staggered to form a closed , the auxiliary mold 462 is fitted to the flat mold 46, and the holes on the auxiliary mold 462 correspond to the granulation holes 45 of the flat mold 46, which does not affect the normal granulation function. By grasping the auxiliary mold 462 and rotating it, the sliding block 461 of the flat mold 46 in the fixed state slides in the sliding groove 463 of the auxiliary mold 462, so that the holes of the auxiliary mold 462 and the granulation holes 45 of the flat mold 46 are staggered, and then the auxiliary mold 462 closes the flat mold 46, and then the granulation component 4 is started. The machine generates a lot of heat in the process of reciprocating rolling and extruding the feed, and then the temperature of the machine can be quickly increased, so that the organic feed enters semi-maturity under the action of high temperature, which can ensure the stability of the feed quality and improve the feed quality;

[0033] The side wall below the granulation component 4 is provided with an opening, and an airflow component 6 is provided at the opening. The pressure roller shaft 43 is located in the annular groove surface of the flat die 46 and generates heat by annular rolling friction. The main reason why the conventional flat die granulation is easily blocked is that during the long-term extrusion granulation process, the temperature of the flat die 46 continues to rise, and the heat cannot be volatilized, resulting in a high temperature on the inner wall of the granulation hole 45. The feed is semi-matured and the starch is gelatinized due to the high temperature. When the feed passes through the granulation hole 45, the moisture in the area in contact with the granulation hole 45 evaporates quickly, resulting in starch coagulation and hardening to form a blockage.

[0034] In addition, feed is often directly bagged after pelleting. Because it is placed in the external environment, it is easy to come into contact with a large number of microorganisms, causing the deterioration of organic feed, and it will absorb a lot of dust. However, with traditional pelleting equipment, the feed still retains a lot of temperature after pelleting. If the feed pellets are directly bagged, the temperature of the bagged feed pellets is difficult to evaporate, and the continuous high temperature will lead to the loss of nutrients inside the organic feed.

[0035] The airflow component 6 speeds up the air flow rate below the flat die 46. The temperature difference between the upper and lower parts of the flat die 46 forms a pressure difference. The airflow component 6 comprises a fan 62, a first filter screen 61 and a second filter screen 64. The fan 62 is located between the first filter screen 61 and the second filter screen 64. The airflow of the fan 62 is directed toward the corresponding discharge hopper 5. The first filter screen 61 blocks the entry of external dust. The second filter screen 64 blocks the entry of feed into the airflow component 6. By starting the fan 62 to generate airflow, the granulated feed will also move toward the discharge hopper 5 under the influence of the airflow.

[0036] The granulating component 4 is preheated by closing the flat die 46 through the auxiliary die 462, so that the temperature of the granulating component 4 is relatively high, and the airflow component 6 and the discharge hopper 5 are relatively arranged so that the external air passes through the airflow component 6 and the discharge hopper 5 to form air convection, so that a temperature difference is formed between the upper and lower parts of the flat die 46, the temperature inside the granulating component 4 is higher, and the temperature below the flat die 46 is lower, thereby causing an air pressure difference, and then the material in the granulating component 4 is pushed out under the action of mechanical extrusion and pressure difference, thereby solving the problem of granulation blockage during the long-term startup of the granulating equipment.

[0037] By preheating the granulation component 4, the organic feed enters semi-maturity, and the airflow component 6 allows the granulated feed to quickly contact oxygen, so that the starch in the organic feed is gelatinized and the enzymatic reaction is promoted. At the same time, the airflow can take away the temperature and surface moisture of the granulated feed, so as to avoid the heat being unable to evaporate quickly after direct bagging, and the long-term high temperature affecting the feed quality. At the same time, the loss of moisture on the outer wall of the feed will increase the hardness of the feed. The granulated feed is bagged.

[0038] Starch and enzymes are common ingredients in organic feed. The role of oxygen in feed pelleting is mainly reflected in promoting starch gelatinization and enzyme activation.

[0039] Starch gelatinization: Gelatinization is a physical change that occurs when starch granules are heated in water, which causes the starch granules to absorb water, swell and rupture, which not only increases the digestibility of starch, but also improves its nutritional value.

[0040] By promoting starch gelatinization, oxygen helps to form a more uniform and stable feed particle structure, which is not only beneficial for animal digestion and absorption, but also improves the durability and resistance to breakage of the feed.

[0041] Enzyme activation: Oxygen can provide the necessary oxygen supply for enzymes, thereby activating the activity of enzymes. Enzymes are biological catalysts that catalyze various chemical reactions in organisms, including the decomposition of starch and the synthesis of proteins. They can also help maintain the stability of enzymes and prevent them from being inactivated under high temperature conditions. This is because oxygen can react with the amino acid residues in the enzyme to form stable covalent bonds, thereby protecting the structure of the enzyme from damage.

[0042] The airflow helps the moisture on the outer wall of the feed pellets to evaporate, thereby reducing the moisture content of the pellets, which is crucial to preventing microbial growth and feed mildew. The outer wall of the feed pellets, when lacking moisture, can increase the hardness of the feed pellets, reduce the breakage rate during transportation and storage, maintain the integrity of the pellets, and allow the feed pellets to be directly bagged. Specific embodiment 2

[0044] Different organic raw materials are selected for different pets. For example, animals in the reproductive or rearing stage need feed with a higher fat content, or some herbivorous animals need to add probiotics to assist digestion, or feed with vitamins. High temperature has a greater impact on feed containing the above three ingredients, so the cooling effect needs to be improved;

[0045] There is another situation, such as the equipment needs to continue granulation, that is, continuous granulation for more than 120 minutes, which will cause the temperature in the equipment to remain high.

[0046] The airflow component 6 further includes a circulation pipe 63 and a circulation pump 65 . The circulation pipe 63 is located between the second filter screen 64 and the fan 62 . Both ends of the circulation pipe 63 are connected to the circulation pump 65 .

[0047] The circulation pump 65 is started to make the water flow through the circulation pipe 63, and the airflow of the fan 62 passes through the circulation pipe 63, and part of the heat is taken away by the liquid. Specific embodiment 3

[0049] A temperature sensor 464 is placed in the groove on the outer surface of the flat mold 46. The temperature sensor 464 can be used in conjunction with a warning light. When the temperature reaches a predetermined stability, a green light can be turned on, and when the temperature exceeds a threshold value, a red light can be turned on.

[0050] The temperature sensor 464 can be used to detect the temperature of the flat mold 46. When the flat mold 46 reaches a predetermined temperature at the beginning, the closed auxiliary mold 462 can be opened to perform granulation.

[0051] Alternatively, if the equipment is working continuously, the temperature of the flat mold 46 continues to rise and reaches the temperature threshold, the reference value is 80°C, and the equipment needs to be paused to dissipate the temperature of the equipment to avoid excessive temperature affecting the quality of the feed.

[0052] The working principle of the embodiment of the present invention is as follows: when the equipment is started as a cold machine, the auxiliary mold 462 is in a closed state, and the organic feed material is added to the granulation component 4 through the feeding barrel 3. By starting the driving motor 1, the transmission shaft increases the torque through the reducer 2, and the power direction is changed through two sets of conical transmission teeth 49, so that the driving motor 1 drives the granulation shaft 42 to rotate, and the granulation shaft 42 drives the pressure roller shaft to roll in an annular manner, so that the semicircular groove surface of its outer wall can reciprocate and crush the feed, and then the pressure roller shaft rolls and squeezes, and then the temperature of the granulation component 4 rises under mechanical friction, which can be preheated for five minutes, or When the temperature reaches the preset temperature through the temperature sensor 464, the warning light turns green, the equipment is paused, and the auxiliary die 462 is grasped and rotated, so that the sliding block 461 of the flat die 46 in the fixed state slides in the sliding groove 463 of the auxiliary die 462, thereby aligning the hole body of the auxiliary die 462 with the granulation hole 45 of the flat die 46, and then the equipment is started, so that the crushed feed is squeezed into the granulation hole 45 of the flat die 46, and the feed passes through the granulation hole 45 of the flat die 46 into a long strip, and the ring sleeve 47 of the granulation shaft 42 drives the cutting knife to rotate, and the long strip feed is cut into grains, and the granulated feed is discharged through the discharge hopper 5;

[0053] The airflow component 6 and the discharge hopper 5 are symmetrically arranged. The first filter 61 blocks external dust from entering, and the second filter 64 blocks feed from entering the airflow component 6. By starting the fan 62 to generate airflow, the granulated feed will also move toward the discharge hopper 5 under the influence of the airflow.

[0054] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A granulating device for producing and processing pet feed, comprising a driving motor (1) and a granulating assembly (4), wherein the transmission shaft of the driving motor (1) passes through a reducer (2) and is then connected to a granulating shaft (42) of the granulating assembly (4) by two groups of conical transmission teeth (49), wherein the granulating assembly (4) further comprises a flat die (46) and a pressure roller shaft (43), wherein the granulating shaft (42) passes through a through hole (44) corresponding to the center position of the flat die (46), wherein an annular groove surface is provided at the top of the flat die (46), and granulating holes (45) are evenly provided on the surface of the annular groove surface, wherein the outer wall of the granulating shaft (42) is symmetrically connected to two groups of pressure roller shafts (43), wherein the granulating shaft (42) is characterized in that: A rotating auxiliary mold (462) is provided at the bottom of the flat mold (46), and the auxiliary mold (462) is rotated to close the granulation hole (45) of the flat mold (46). An opening is provided on the side wall below the granulation component (4), and an airflow component (6) is provided at the opening. The pressure roller shaft (43) is located in the annular groove surface of the flat mold (46) to generate heat by annular rolling friction. The airflow component (6) accelerates the air flow rate below the flat mold (46), and a pressure difference is formed between the upper and lower parts of the flat mold (46) due to the temperature difference.

2. The granulating equipment for producing and processing pet feed according to claim 1, characterized in that: The top of the granulation component (4) is connected to a feed cylinder (3), and the outer wall of the granulation component (4) is provided with a discharge hopper (5), and the discharge hopper (5) and the airflow component (6) are symmetrically arranged.

3. The granulating equipment for producing and processing pet feed according to claim 1, characterized in that: The surface of the auxiliary mold (462) is provided with a hole body at the same position as the granulation hole (45) on the flat mold (46); the surface of the auxiliary mold (462) that fits the flat mold (46) is provided with a sliding groove (463); the outer surface of the flat mold (46) is provided with a sliding block (461) that matches the sliding groove (463); the rotation of the sliding block (461) and the sliding groove (463) enables the auxiliary mold (462) to rotate independently, and the hole body on the auxiliary mold (462) and the granulation hole (45) on the flat mold (46) are staggered to form a closed state.

4. The granulating equipment for producing and processing pet feed according to claim 2, characterized in that: The airflow component (6) comprises a fan (62), a first filter (61) and a second filter (64); the fan (62) is located between the first filter (61) and the second filter (64); and the airflow of the fan (62) is directed toward the corresponding discharge hopper (5).

5. The granulating equipment for producing and processing pet feed according to claim 4, characterized in that: The airflow assembly (6) further comprises a circulation pipe (63) and a circulation pump (65); the circulation pipe (63) is located between the second filter screen (64) and the fan (62); the first and last ends of the circulation pipe (63) are connected to the circulation pump (65) accordingly.

6. The granulating equipment for producing and processing pet feed according to claim 3, characterized in that: A temperature sensor (464) is placed in the groove on the outer surface of the flat mold (46).

7. The granulating equipment for producing and processing pet feed according to claim 1, characterized in that: A locking nut (41) is screwed onto the top of the granulating shaft (42), and the outer walls of the two groups of pressing roller shafts (43) are provided with semicircular groove surfaces, so that the two groups of pressing roller shafts (43) roll in a ring shape with the granulating shaft (42) as the center.

8. The granulating equipment for producing and processing pet feed according to claim 1, characterized in that: A ring sleeve (47) is nested and installed on the granulation shaft (42) below the flat die (46), and pelletizing knives (48) are symmetrically arranged on both sides of the ring sleeve (47). The ring sleeve (47) rotates synchronously with the granulation shaft (42).

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