A kind of fattening pig clean feed puffing processing device and processing method thereof

Abstract

The present invention discloses a puffing processing device for clean feed for fattening pigs and a processing method thereof. The present invention comprises: a base, a puffing processing structure and a pretreatment component. The puffing processing structure comprises a puffing box installed on the top of the base, a conveying structure installed on the top of the base and a cooling box installed on the top of the conveying structure. The present invention screens the clean feed through a screening plate, drives a cam to rotate through a micro motor, the cam rotates to squeeze an auxiliary plate, the auxiliary plate drives the screening plate to squeeze a buffer spring, one end of the screening plate shakes up and down, and the other end rotates along a rotating shaft, the screening plate shakes so that unqualified clean feed enters a return hopper along the screening plate, and the clean feed is prevented from accumulating on the screening plate. The unqualified clean feed enters a second guide cylinder through a bolt conveying mechanism in a reflux lifting column, and falls back into a crushing box for subsequent crushing and screening, and the clean feed is prevented from clogging the screening plate and wasting the clean feed.

Description

Technical Field

[0001] The invention relates to the technical field of puffing processing of clean feed for fattening pigs, and in particular to a puffing processing device and a processing method of clean feed for fattening pigs. Background Art

[0002] Feed is a general term for food for all animals raised by humans. In a narrower sense, general feed mainly refers to food for animals raised in agriculture or animal husbandry. Studies have shown that adding puffed grain feed to the feed of growing and fattening pigs significantly increased the apparent digestibility of crude protein, significantly reduced the drip loss of pork, and significantly increased the content of intramuscular fat and α-linolenic acid in the meat, thereby improving the quality of meat. Clean feed refers to animal feed that has been processed to remove impurities and pathogens to ensure the health and safety of animals when eating.

[0003] The Chinese patent application with the publication number CN117323914A discloses an extruder and an extrusion method for screening pig feed processing, which relates to the technical field of pig feed processing, including a screening box, a feeding bin fixedly installed on the top of the screening box, a base platform fixedly installed on the bottom of the screening box, a spiral extruder fixedly installed on the side of the base platform, a driving motor provided on the other end of the spiral extruder, and a feeding box fixedly installed on the top of the spiral extruder near one end of the base platform. The present invention solves the problem that the ratio of feed volume and water content is very important during feed processing and extrusion through the cooperation of a filter screen, a central roller, a drum, a rotating shaft, a conveyor belt, an auxiliary shaft, a rotating motor, a sub-screen plate and a bottom plate. If the water content is too low, it is difficult to extrude and is prone to clogging. If the water content is too high, it may not be fully extruded, which affects the forming. The function of screening the feed volume is achieved, and with two discharges, it is convenient for the device to proportion water content according to needs, which is conducive to the convenient extrusion processing of the device.

[0004] The Chinese utility model patent with authorization announcement number CN213222594U discloses an improved extruder crushing device for pig feed production, which belongs to the technical field of pig feed production, including an extruder body, a motor is fixedly connected to one side of the extruder body, and a collecting hopper is connected to the top of the extruder body. The beneficial effects of the utility model are: by providing a crushing structure, when feeding feed, the screen plate is driven by the vibrator to screen and crush, so that the feed particle size is not too large or too small, which is beneficial to improving the subsequent extruder processing quality. During the screening process, the dust is removed and discharged by the dust exhaust fan to ensure the cleanliness of the feed box. The inner wall of the collecting hopper adopts a spiral chute design, so that the feed is transported in an orderly and uniform speed when feeding the extruder body, avoiding the problem of too compact and dense feed feeding, resulting in uneven quality of subsequent extruder body puffing processing, and avoiding the problem of easy blockage during feeding. The overall structure is reasonable, and the crushing structure and the collecting hopper can be disassembled, which is convenient for cleaning and has high practicality.

[0005] After the device in the above patent crushes the clean feed, clean feed of different sizes will also fall on the screening plate, and clean feed that does not meet the size will remain on the screening plate, which is easy to clog the screening plate and also causes waste of clean feed. Similarly, when the clean feed for fattening pigs is collected after being processed, the clean feed cannot be collected quantitatively, and subsequent staff are required to re-weigh and re-package it, which increases unnecessary work costs. Summary of the invention

[0006] The purpose of the present invention is to provide a fattening pig clean feed puffing processing device and a processing method thereof, which solves the problem that after the existing device crushes the clean feed, clean feed of different sizes will fall on the screening plate, and clean feed that does not meet the size will remain on the screening plate, which is easy to block the screening plate and also causes waste of clean feed. Similarly, when the clean feed for fattening pigs is collected after being finally processed, the clean feed cannot be collected quantitatively, and subsequent staff need to re-weigh and re-package it, which increases unnecessary work costs.

[0007] The present invention solves the above technical problems through the following technical solutions, which include:

[0008] Base;

[0009] A puffing processing structure, the puffing processing structure is installed on the top of the base, and the puffing processing structure includes a puffing box installed on the top of the base, a conveying structure installed on the top of the base, and a cooling box installed on the top of the conveying structure;

[0010] A pre-processing component, which is installed on the top of the base and is used for crushing and screening the feed raw materials;

[0011] The pretreatment component includes a feeding structure installed on the top of the base, a screening box installed on the top of the base, a crushing box installed on the top of the screening box, a return structure installed on one side of the screening box, a material guiding structure installed on the front side of the screening box and a screening structure installed inside the screening box.

[0012] Preferably, the feeding structure includes a feeding lifting column installed on the top of the base, a feeding hopper installed on one side of the bottom of the feeding lifting column and a first guide cylinder installed on one side of the top of the feeding lifting column; the return material structure includes a reflux lifting column installed on the top of the base through a pad, a reflux hopper installed between the screening box and the reflux lifting column and a second guide cylinder installed on one side of the top of the reflux lifting column; the material guiding structure includes a material guiding lifting column installed on the top of the base, a material guiding hopper installed between the screening box and the material guiding lifting column and a third guide cylinder installed on one side of the top of the material guiding lifting column; the feeding lifting column, the reflux lifting column and the material guiding lifting column are all equipped with screw conveying mechanisms.

[0013] Preferably, a crushing structure is installed inside the crushing box, and the crushing structure includes a crushing motor installed on the outer wall of the crushing box by bolts, an active crushing column with two ends respectively rotatably installed on the inner wall of the crushing box and fixedly installed on the output shaft of the crushing motor, and a driven crushing column rotatably installed between the inner walls of the crushing box, the active crushing column is meshed with the driven crushing column, and the first guide cylinder and the second guide cylinder both correspond to the crushing box.

[0014] Preferably, a vibration cavity is opened on the inner wall of the screening box, an extension plate is fixedly welded on the inner wall of the screening box, the screening structure includes a micro motor installed in the vibration cavity by bolts, a cam fixedly mounted on the output shaft of the micro motor, and a screening plate whose two ends are respectively welded to the extension plate through buffer springs and rotatably mounted on the inner wall of the screening box, an auxiliary plate is fixedly welded to the bottom of the screening plate, the cam corresponds to the auxiliary plate, the other end of the buffer spring is welded to the bottom of the auxiliary plate, and the screening plate corresponds to the reflux funnel.

[0015] Preferably, the third guide cylinder corresponds to the puffing box, a puffing bucket is installed on one side of the puffing box, the conveying structure includes a support column installed on the top of the base and a conveyor belt installed between the support columns, a baffle is fixedly welded on one side of the support column, and layered plates are fixedly welded between the baffles, and a cooling structure is installed on the top of the cooling box.

[0016] Preferably, a discharge plate is fixedly welded between the support columns at the discharge end of the conveyor belt, and a triangular guide plate is fixedly welded on the discharge plate.

[0017] Preferably, a movable guide rail is installed on the top of the base, and a collecting assembly is installed on the top of the movable guide rail, and the collecting assembly is used to collect and weigh the processed feed.

[0018] Preferably, the collecting assembly includes a moving plate fixedly welded on the top of the slider of the moving guide rail, a guide column fixedly welded on the top of the moving plate, a guide slider slidably mounted on the guide column, a return spring fused between the guide slider and the moving plate, a supporting plate fixedly welded between the guide sliders, a collecting box installed on the top of the supporting plate, a first induction plate installed on the bottom of the supporting plate and a second induction plate installed on the top of the moving plate, the first induction plate corresponds to the second induction plate, the return spring is mounted on the outside of the guide column, and the collecting assembly is provided with two groups.

[0019] The processing method of the present invention comprises the following steps:

[0020] Step 1: Feed the feed into the feed lifting column through the feed hopper, guide the feed into the crushing box through the screw conveying mechanism, the feed crushed by the crushing structure enters the screening box, screened by the screening structure, and the feed that meets the demand enters the feed guide lifting column through the guide hopper, and guides the feed into the expansion box for expansion through the screw conveying mechanism and the third guide cylinder. The feed that does not meet the demand enters the reflux lifting column through the reflux hopper and returns to the crushing box through the screw conveying mechanism for re-crushing;

[0021] Step 2: The feed is expanded by the expansion box, and the expanded feed falls onto the conveyor belt through the expansion bucket, and the expanded feed is guided into the cooling box through the conveyor belt for cooling;

[0022] Step 3: The cooled feed enters the collection box through the discharge plate, and the feed is collected and weighed by the collection component.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The clean feed is screened by the screening plate. The micro motor drives the cam to rotate. The cam rotates to squeeze the auxiliary plate. The auxiliary plate drives the screening plate to squeeze the buffer spring. One end of the screening plate shakes up and down, and the other end rotates along the rotating shaft. The shaking of the screening plate makes the unqualified clean feed enter the return hopper along the screening plate to avoid the accumulation of clean feed on the screening plate. The unqualified clean feed enters the second guide cylinder through the bolt conveying mechanism in the reflux lifting column and falls back into the crushing box for subsequent crushing and screening. This reciprocating process avoids the clean feed from clogging the screening plate and wasting the clean feed, thereby improving the pretreatment quality and the puffing quality.

[0025] 2. The weight of the collection box increases and the supporting plate is driven downward, the supporting plate drives the guide slider to move, the guide slider squeezes the reset spring, and the supporting plate drives the first induction plate to move toward the second induction plate. When the first induction plate contacts the second induction plate, the moving guide rail works and drives the moving plate to move, so that another collection box can collect the feed. This reciprocating process makes the weight of the clean feed in multiple collection boxes basically consistent, and there is no need for subsequent re-weighing and repackaging, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle in the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the pretreatment component in the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the screening structure in the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the discharge plate and the collection assembly in the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the collecting component in the present invention.

[0032] The numbers in the figure represent:

[0033] 1. Base;

[0034] 2. Puffing processing structure; 201. Puffing box; 202. Conveying structure; 203. Cooling box;

[0035] 3. Pretreatment assembly; 301. Feed structure; 3011. Feed lifting column; 3012. Feed hopper; 3013. First guide cylinder; 302. Screening box; 303. Crushing box; 304. Return material structure; 3041. Reflux lifting column; 3042. Reflux hopper; 3043. Second guide cylinder; 305. Material guide structure; 3051. Material guide lifting column; 3052. Material guide hopper; 3053. Third guide cylinder; 306. Screening structure; 3061. Micro motor; 3062. Cam; 3063. Buffer spring; 3064. Screening plate; 3065. Auxiliary plate;

[0036] 4. Screw conveying mechanism;

[0037] 5. Broken structure;

[0038] 6. Baffle; 7. Layering plate; 8. Discharging plate; 9. Triangular guide plate; 10. Moving guide rail;

[0039] 11. Collection assembly; 1101. Moving plate; 1102. Guide column; 1103. Guide slider; 1104. Return spring; 1105. Support plate; 1106. Collection box; 1107. First induction plate; 1108. Second induction plate. DETAILED DESCRIPTION

[0040] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0041] This embodiment provides a technical solution: a fattening pig clean feed puffing processing device, such as Figure 1 As shown, it includes a base 1, a puffing processing structure 2 and a pre-treatment component 3;

[0042] The puffing processing structure 2 is installed on the top of the base 1 , and the puffing processing structure 2 includes a puffing box 201 installed on the top of the base 1 , a conveying structure 202 installed on the top of the base 1 , and a cooling box 203 installed on the top of the conveying structure 202 .

[0043] like Figure 2-4 As shown, the pre-processing component 3 is installed on the top of the base 1, and the pre-processing component 3 is used to perform crushing pre-processing and screening pre-processing on the feed raw materials;

[0044] The pretreatment component 3 includes a feed structure 301 installed on the top of the base 1, a screening box 302 installed on the top of the base 1, a crushing box 303 installed on the top of the screening box 302, a return structure 304 installed on one side of the screening box 302, a guide structure 305 installed on the front side of the screening box 302, and a screening structure 306 installed inside the screening box 302. The feed structure 301 includes a feed lifting column 3011 installed on the top of the base 1, a feed hopper 3012 installed on one side of the bottom of the feed lifting column 3011, and a first guide cylinder 3013 installed on one side of the top of the feed lifting column 3011. The return structure 304 includes a reflux lifting column 3041 installed on the top of the base 1 through a pad, and a guide structure 305 installed between the screening box 302 and the reflux lifting column 306. The material guiding structure 305 comprises a material guiding lifting column 3051 installed on the top of the base 1, a material guiding hopper 3052 installed between the screening box 302 and the material guiding lifting column 3051, and a third guide cylinder 3053 installed on the top of the material guiding lifting column 3051. The feeding lifting column 3011, the reflux lifting column 3041 and the material guiding lifting column 3051 are all equipped with a spiral conveying mechanism 4. The crushing box 303 is equipped with a crushing structure 5. The crushing structure 5 comprises a crushing motor installed on the outer wall of the crushing box 303 by bolts, a main shaft rotatably installed on the inner wall of the crushing box 303 at both ends and fixedly installed on the output shaft of the crushing motor. The active crushing column and the driven crushing column rotatably installed between the inner wall of the crushing box 303, the active crushing column meshes with the driven crushing column, the first guide cylinder 3013 and the second guide cylinder 3043 both correspond to the crushing box 303, a vibration cavity is opened on the inner wall of the screening box 302, an extension plate is fixedly welded on the inner wall of the screening box 302, the screening structure 306 includes a micro motor 3061 installed in the vibration cavity by bolts, a cam 3062 fixedly installed on the output shaft of the micro motor 3061, and a screening plate 3064 whose two ends are respectively welded to the extension plate through buffer springs 3063 and rotatably installed on the inner wall of the screening box 302, an auxiliary plate 3065 is fixedly welded on the bottom of the screening plate 3064, and the cam 3062 corresponds to the auxiliary plate 3065 The other end of the buffer spring 3063 is welded to the bottom of the auxiliary plate 3065, and the screening plate 3064 corresponds to the reflux bucket 3042. The feed is put into the feed lifting column 3011 through the feed hopper 3012, and the feed is introduced into the crushing box 303 through the spiral conveying mechanism 4 in the feed lifting column 3011 and the first guide cylinder 3013. The active crushing column is driven to rotate by the crushing motor, and the active crushing column and the driven crushing column are engaged and rotated to crush the feed. The crushed feed enters the screening box 302 and is screened by the screening plate 3064. The cam 3062 is driven to rotate by the micro motor 3061, and the cam 3062 rotates to squeeze the auxiliary plate 3065, and the auxiliary plate 3065 drives the screening plate 3064 to squeeze the buffer spring 3063.One end of the screening plate 3064 shakes up and down, and the other end rotates along the rotating shaft. The shaking of the screening plate 3064 allows unqualified feed to enter the return hopper along the screening plate 3064, avoiding the accumulation of feed on the screening plate 3064. The unqualified feed enters the second guide cylinder 3043 through the bolt conveying mechanism in the reflux lifting column 3041, and falls back into the crushing box 303 for subsequent crushing and screening. This reciprocating process avoids feed blocking the screening plate 3064 and wasting feed, thereby improving the quality of pretreatment and the quality of puffing.

[0045] like Figure 5 , Figure 6 As shown, the third guide cylinder 3053 corresponds to the puffing box 201, and a puffing bucket is installed on one side of the puffing box 201. The conveying structure 202 includes a support column installed on the top of the base 1 and a conveyor belt installed between the support columns. A baffle 6 is fixedly welded on one side of the support column, and a layering plate 7 is fixedly welded between the baffles 6. A cooling structure is installed on the top of the cooling box 203, and a discharge plate 8 is fixedly welded between the support columns at the discharge end of the conveyor belt. A triangular guide plate 9 is fixedly welded on the discharge plate 8. The puffed feed is introduced into the cooling box 203 for cooling through the conveyor belt, and the feed is flattened through the layering plate 7 to improve the cooling efficiency and cooling quality. The baffle 6 is used to prevent the feed from falling, and the cooled feed falls into the collecting box 1106 through the discharge plate 8 and the triangular guide plate 9.

[0046] like Figure 5 , Figure 6As shown, a moving guide rail 10 is installed on the top of the base 1, and a collecting assembly 11 is installed on the top of the moving guide rail 10. The collecting assembly 11 is used to collect and weigh the processed feed. The collecting assembly 11 includes a moving plate 1101 fixedly welded to the top of the slider of the moving guide rail 10, a guide column 1102 fixedly welded to the top of the moving plate 1101, a guide slider 1103 slidably sleeved on the guide column 1102, a return spring 1104 welded between the guide slider 1103 and the moving plate 1101, a supporting plate 1105 fixedly welded between the guide slider 1103, a collecting box 1106 installed on the top of the supporting plate 1105, a first induction plate 1107 installed at the bottom of the supporting plate 1105, and a second induction plate 1108 installed on the top of the moving plate 1101. The induction plate 1107 corresponds to the second induction plate 1108, and the reset spring 1104 is sleeved on the outside of the guide column 1102. The collecting assembly 11 is provided with two groups. The weight increase of the collecting box 1106 drives the supporting plate 1105 to move downward, and the supporting plate 1105 drives the guide slider 1103 to move. The guide slider 1103 squeezes the reset spring 1104, and the supporting plate 1105 drives the first induction plate 1107 to move toward the second induction plate 1108. When the first induction plate 1107 contacts the second induction plate 1108, the moving guide rail 10 works at this time, driving the moving plate 1101 to move, so that another collecting box 1106 performs collection work, and so on and so forth, so that the weight of the feed in the multiple collecting boxes 1106 is basically the same, and there is no need for subsequent re-weighing and packaging, thereby improving work efficiency.

[0047] A processing method of a fattening pig clean feed puffing processing device comprises the following steps:

[0048] Step 1: Feed the feed into the feed lifting column 3011 through the feed hopper 3012, and guide the feed into the crushing box 303 through the screw conveying mechanism 4. The feed crushed by the crushing structure 5 enters the screening box 302, and is screened by the screening structure 306. The feed that meets the demand enters the feed guide lifting column 3051 through the guide hopper 3052, and is guided into the puffing box 201 for puffing through the screw conveying mechanism 4 and the third guide cylinder 3053. The feed that does not meet the demand enters the reflux lifting column 3041 through the reflux hopper 3042, and returns to the crushing box 303 through the screw conveying mechanism 4 for re-crushing;

[0049] Step 2: The feed is expanded by the expansion box 201, and the expanded feed falls onto the conveyor belt through the expansion bucket, and the expanded feed is introduced into the cooling box 203 through the conveyor belt for cooling;

[0050] Step 3: The cooled feed enters the collecting box 1106 through the discharging plate 8, and the collecting component 11 collects and weighs the feed.

[0051] When in use, the clean feed is put into the feed lifting column 3011 through the feed hopper 3012, and the clean feed is introduced into the crushing box 303 through the screw conveying mechanism 4 and the first guide cylinder 3013 in the feed lifting column 3011. The active crushing column is driven to rotate by the crushing motor, and the active crushing column and the driven crushing column are engaged and rotated to crush the clean feed. The crushed clean feed enters the screening box 302, and the clean feed is screened by the screening plate 3064. The cam 3062 is driven to rotate by the micro motor 3061, and the cam 3062 rotates to squeeze the auxiliary plate 3065, and the auxiliary plate 3065 The screening plate 3064 is driven to squeeze the buffer spring 3063. One end of the screening plate 3064 swings up and down, and the other end rotates along the rotating shaft. The swing of the screening plate 3064 allows unqualified clean feed to enter the return hopper along the screening plate 3064, thereby preventing the clean feed from accumulating on the screening plate 3064. The unqualified clean feed enters the second guide cylinder 3043 through the bolt conveying mechanism in the reflux lifting column 3041, and falls back into the crushing box 303 for subsequent crushing and screening. This reciprocating process prevents the clean feed from clogging the screening plate 3064 and wasting the clean feed, thereby improving the pretreatment quality and the puffing quality. The qualified clean feed enters the guide lifting column 3051 through the guide hopper 3052, and is introduced into the puffing box 201 for puffing through the screw conveying mechanism 4 and the third guide cylinder 3053. The puffed clean feed falls onto the conveyor belt through the puffing hopper, and is introduced into the cooling box 203 through the conveyor belt for cooling. The clean feed is flattened by the layering plate 7 to improve the cooling efficiency and cooling quality. The baffle 6 is used to prevent the clean feed from falling. The cooled clean feed falls into the collection box 1106 through the discharge plate 8 and the triangular guide plate 9. The increase in weight drives the support plate 1105 to move downward, and the support plate 1105 drives the guide slider 1103 to move. The guide slider 1103 squeezes the reset spring 1104, and the support plate 1105 drives the first sensing plate 1107 to move toward the second sensing plate 1108. When the first sensing plate 1107 contacts the second sensing plate 1108, the moving guide rail 10 works to drive the moving plate 1101 to move, so that another collection box 1106 can perform collection work, and this reciprocating process makes the weight of the clean feed in multiple collection boxes 1106 basically consistent, and there is no need for subsequent re-weighing and repackaging, thereby improving work efficiency.

[0052] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims, but all of them will fall within the scope of protection of the present invention.

Claims

1. A puffing processing device for clean feed for fattening pigs, characterized in that: include: Base (1); A puffing processing structure (2), the puffing processing structure (2) being mounted on the top of the base (1), the puffing processing structure (2) comprising a puffing box (201) mounted on the top of the base (1), a conveying structure (202) mounted on the top of the base (1), and a cooling box (203) mounted on the top of the conveying structure (202); A pretreatment component (3), the pretreatment component (3) being mounted on the top of the base (1), and the pretreatment component (3) being used to perform crushing pretreatment and screening pretreatment on the feed raw materials; The pre-treatment component (3) comprises a feeding structure (301) mounted on the top of the base (1), a screening box (302) mounted on the top of the base (1), a crushing box (303) mounted on the top of the screening box (302), a material return structure (304) mounted on one side of the screening box (302), a material guide structure (305) mounted on the front side of the screening box (302), and a screening structure (306) mounted inside the screening box (302); The feed structure (301) comprises a feed lifting column (3011) mounted on the top of the base (1), a feed hopper (3012) mounted on one side of the bottom of the feed lifting column (3011), and a first guide cylinder (3013) mounted on one side of the top of the feed lifting column (3011); the return structure (304) comprises a reflux lifting column (3041) mounted on the top of the base (1) via a cushion block, a reflux hopper (3042) mounted between the screening box (302) and the reflux lifting column (3041), and a first guide cylinder (3013) mounted on the reflux lifting column (3011). a second guide cylinder (3043) on one side of the top of the lifting column (3041); the material guiding structure (305) comprises a material guiding lifting column (3051) installed on the top of the base (1), a material guiding hopper (3052) installed between the screening box (302) and the material guiding lifting column (3051), and a third guide cylinder (3053) installed on one side of the top of the material guiding lifting column (3051); and a screw conveying mechanism (4) is installed inside the material feeding lifting column (3011), the reflux lifting column (3041), and the material guiding lifting column (3051); The third guide cylinder (3053) corresponds to the puffing box (201); a puffing hopper is mounted on one side of the puffing box (201); the conveying structure (202) comprises a support column mounted on the top of the base (1) and a conveyor belt mounted between the support columns; a baffle (6) is fixedly welded to one side of the support column; and layered plates (7) are fixedly welded between the baffles (6); and a cooling structure is mounted on the top of the cooling box (203).

2. A fattening pig clean feed puffing processing device as claimed in claim 1, wherein a crushing structure (5) is installed inside the crushing box (303), and the crushing structure (5) includes a crushing motor installed on the outer wall of the crushing box (303) by bolts, an active crushing column with two ends respectively rotatably installed on the inner wall of the crushing box (303) and fixedly installed on the output shaft of the crushing motor, and a driven crushing column rotatably installed between the inner walls of the crushing box (303), the active crushing column is meshed with the driven crushing column, and the first guide cylinder (3013) and the second guide cylinder (3043) both correspond to the crushing box (303).

3. The apparatus for puffing clean feed for fattening pigs according to claim 1, characterized in that: A vibration cavity is provided on the inner wall of the screening box (302); an extension plate is fixedly welded to the inner wall of the screening box (302); the screening structure (306) comprises a micro motor (3061) installed in the vibration cavity by means of bolts, a cam (3062) fixedly mounted on the output shaft of the micro motor (3061), and a screening plate (3064) whose two ends are respectively welded to the extension plate through buffer springs (3063) and rotatably mounted on the inner wall of the screening box (302); an auxiliary plate (3065) is fixedly welded to the bottom of the screening plate (3064); the cam (3062) corresponds to the auxiliary plate (3065); the other end of the buffer spring (3063) is welded to the bottom of the auxiliary plate (3065); and the screening plate (3064) corresponds to the reflux hopper (3042).

4. The apparatus for puffing clean feed for fattening pigs according to claim 1, characterized in that: A discharge plate (8) is fixedly welded between the support columns at the discharge end of the conveyor belt, and a triangular guide plate (9) is fixedly welded to the discharge plate (8).

5. The apparatus for puffing clean feed for fattening pigs as claimed in claim 4, characterized in that: A movable guide rail (10) is installed on the top of the base (1), and a collecting component (11) is installed on the top of the movable guide rail (10). The collecting component (11) is used to collect and weigh the processed feed.

6. The apparatus for puffing clean feed for fattening pigs as claimed in claim 5, characterized in that: The collecting assembly (11) comprises a moving plate (1101) fixedly welded to the top of a slider of the moving guide rail (10), a guide column (1102) fixedly welded to the top of the moving plate (1101), a guide slider (1103) slidably sleeved on the guide column (1102), a return spring (1104) welded between the guide slider (1103) and the moving plate (1101), a supporting plate (1105) fixedly welded between the guide slider (1103), a collecting box (1106) mounted on the top of the supporting plate (1105), a first induction plate (1107) mounted at the bottom of the supporting plate (1105), and a second induction plate (1108) mounted on the top of the moving plate (1101), wherein the first induction plate (1107) corresponds to the second induction plate (1108), the return spring (1104) is sleeved on the outside of the guide column (1102), and the collecting assembly (11) is provided with two groups.

7. The processing method of the clean feed puffing processing device for fattening pigs according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Feed is fed into a feed lifting column (3011) through a feed hopper (3012), and the feed is introduced into a crushing box (303) through a screw conveying mechanism (4). The crushed feed is fed into a screening box (302) through a crushing structure (5), and is screened through a screening structure (306). Feed that meets the demand is fed into a feed guiding lifting column (3051) through a guide hopper (3052), and the feed is introduced into an expansion box (201) for expansion through a screw conveying mechanism (4) and a third guide cylinder (3053). Feed that does not meet the demand is fed into a return flow lifting column (3041) through a return flow hopper (3042), and is returned to the crushing box (303) through a screw conveying mechanism (4) for re-crushing. Step 2: the feed is puffed in the puffing box (201), and the puffed feed falls onto the conveyor belt through the puffing bucket, and the puffed feed is guided into the cooling box (203) through the conveyor belt for cooling; Step 3: The cooled feed enters the collection box (1106) through the discharge plate (8), and the feed is collected and weighed by the collection component (11).

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