Feeding device for pet food production

Abstract

The invention provides a feeding device for pet food production, and relates to the technical field of pet food production. The feeding device for pet food production comprises a feeding box, a feeding hopper, a feeding pipe, a rotary separator, a cloth bag dust collection device, an air blowing cleaning device and a compressed air supply device. According to the invention, the air blower blows air to classify the material, the material is classified according to the characteristic that particles with different granularities have different falling points after being blown due to different weights, the medium particles meeting the requirements fall into the feeding pipe and then are pneumatically conveyed and fed through compressed air, and the three groups of cameras monitor the actual classification conditions of the large, medium and small particles; according to the monitoring condition, the electric telescopic rod can act, the air outlet angle can be finely adjusted, a good grading effect is achieved, dust is sucked away through the first dust suction opening and the second dust suction opening through the cloth bag dust suction device, the problem that the dust affects the quality of pet food is effectively solved, and the buffer layer can effectively prevent material particles from being broken after being collided in the working process.

Description

Technical Field

[0001] The present invention relates to the technical field of pet food production, and specifically to a feeding device for pet food production. Background Technique

[0002] With the growth of the people's economic level, the pet industry has quietly emerged and occupied a certain proportion in the growth of the national economy. Among them, the consumption generated by the breeding of dogs, cats, fish, and plant pets is the main part. As good friends of humans, the way of raising pets has gradually changed from the previous free-range feeding method to a refined feeding method, making pet food a major part of pet consumption and having a relatively obvious proportion in the pet economy.

[0003] Pet food is a kind of high-grade animal food specifically provided for pets, which is between human food and traditional livestock and poultry feed. Its main purpose is to provide the most basic life guarantee, growth and development, and nutrients required for health for various pets. It has the advantages of comprehensive nutrition, high digestion and absorption rate, scientific formula, high quality inspection standards, safe to eat, convenient to feed and use, and can prevent certain diseases. When pet food is processed, it is necessary to mix and process the materials. Among them, the feeding equipment, as the first step of processing, has received extensive attention.

[0004] A semi-automatic feeding device for pet food production disclosed in the prior art includes a strengthening bracket, a first feeder, and a feeding hopper. A shock-absorbing base is arranged at the bottom of the strengthening bracket, a vibration motor is arranged on the strengthening bracket, the first feeder is arranged on one side of the vibration motor, feeding machine side walls are arranged on both sides of the first feeder, a sieve plate is arranged at the bottom of the first feeder, falling through holes are arranged on the sieve plate, ultraviolet germicidal lamps are arranged inside the feeding machine side walls, a rotating motor is arranged on one side of the feeding machine side walls, and a switching plate is arranged on the rotating motor.

[0005] In the actual use process of the above-disclosed technology, the feeder used is prone to material accumulation at the end of the feeder during the screening process, resulting in poor screening effect. Moreover, the dust generated during the screening process of the feeder is likely to cause a high dust content in pet food, reducing the quality of pet food; For this reason, an improved technology in the market proposes a semi-automatic feeding device for pet food production, including a machine shell and a feeder inside the machine shell. The feeder includes a large-particle feeding pipe and a material feeding pipe. The feeding end of the large-particle feeding pipe is connected to the first feeding port, the bottom is communicated with the material feeding pipe through a dust removal pipe, and the discharging end is communicated with a large-particle collection box; the feeding end of the material feeding pipe is connected to the second feeding port, and a dust collection tank is installed at the bottom; the large-particle feeding pipe and the material feeding pipe are driven to rotate by a motor and are both installed with guiding spiral blades inside. There are pet food filtering holes on the pipe wall of the large-particle feeding pipe, and dust filtering holes on the pipe wall of the material feeding pipe; the first feeding port penetrates through the top of the machine shell, the large-particle collection box is embedded on the side wall of the machine shell, and a dust collector communicated with the dust removal pipe is installed on the outer side of the machine shell. This improved technology claims that its structure can effectively reduce the dust content in pet food and improve the quality of pet food; However, in actual application, the above structure has very obvious defects, resulting in abnormal feeding. One is that some material particles, because their sizes are exactly the same as the pet food filtering holes, will block in the pet food filtering holes, resulting in the problem that it is impossible to screen materials with different particle sizes through the pet food filtering holes. There is no structure or device for dredging the filtering holes mentioned in its technical content. The purpose of setting this filtering hole is to classify material particles of different particle sizes and process pet food with qualified particles to make the pet food of higher quality. In fact, its structure fails in subsequent feeding due to blocked holes and cannot achieve material particle classification.

[0006] In order to improve the quality of pet food and solve the above technical problems, it is necessary to improve and optimize the structure of the feeding device for pet food production. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the present invention provides a feeding device for pet food production, which solves the problems of unsatisfactory material classification in the feeding device for pet food production in the prior art and the dust generated during the classification process is likely to cause a high dust content in pet food, resulting in a reduction in the quality of pet food.

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A feeding device for pet food production, comprising a feeding box, a feed hopper, a feeding pipe, a rotary separator, a bag dust suction device, a blowing and cleaning device, and a compressed air supply device. The feeding box is supported by four groups of support feet. The upper wall of the feeding box is fixedly connected with a feeding pipe in a penetrating manner near the left wall. The feed hopper is fixedly connected to the upper end of the feeding pipe. One end of the feeding pipe extending into the interior of the feeding box is fixedly connected with an inclined pipe. The included angle between the center line in the length direction of the inner cavity of the inclined pipe and the center line in the length direction of the feeding pipe is thirty degrees. The inner side wall of the feeding box is fixedly connected with a partition plate. The inner wall of the partition plate is sequentially provided with a first rectangular hole, a second rectangular hole, and a third rectangular hole from left to right. The inner side wall of the feeding box and above the partition plate is rotatably connected with a mounting plate through a first rotating seat. The first rotating seat is rotatably connected with the inner side wall of the feeding box through a rotating shaft. The upper wall of the mounting plate is fixedly connected with a blower for blowing and classifying materials. The air outlet of the blower is fixedly connected with an air outlet hood. The air outlet direction of the air outlet hood faces the end of the inclined pipe away from the feeding pipe. The size of the air outlet range of the air outlet hood in the front-back direction is larger than the size of the inclined pipe in the front-back direction. The front wall of the feeding box is fixedly connected with a large particle discharge pipe and a small particle discharge pipe in a left-right distribution.

[0009] Preferably, the feeding pipe is composed of a first feeding pipe, a second feeding pipe, and a third feeding pipe. The first feeding pipe is fixedly connected to the inner lower wall of the feeding box. The right end of the first feeding pipe penetrates the right wall of the feeding box and extends to the right side of the feeding box. The second feeding pipe and the third feeding pipe are sequentially fixedly connected to the end of the first feeding pipe extending outside the feeding box. The rotary separator is fixedly connected to the end of the third feeding pipe away from the second feeding pipe. A feeding port is arranged at the lower end of the rotary separator. A first dust suction port and a second dust suction port are respectively arranged on the upper wall of the feeding box at the end away from the feeding pipe and the upper wall of the rotary separator. One end of the first dust suction port away from the feeding box and one end of the second dust suction port away from the rotary separator are respectively connected to the bag dust suction device through a group of hoses. The left wall of the feeding box and near the lower wall is fixedly connected with an air inlet joint. The end of the air inlet joint facing the feeding box sequentially penetrates the left wall of the feeding box and the left end of the first feeding pipe and is communicated with the inside of the first feeding pipe. The end of the air inlet joint away from the feeding box is connected to the compressed air supply device through an air pipe.

[0010] Preferably, an adjusting structure for adjusting the air outlet angle of the blower is arranged between the mounting plate and the inner side wall of the feeding box. A plurality of camera structures for monitoring the material classification situation are arranged on the front wall of the feeding box. A baffle structure for receiving each level of materials after material classification is arranged on the upper wall of the partition plate.

[0011] Preferably, the adjusting structure includes an electric telescopic rod and two sets of second rotating seats. The two sets of second rotating seats are respectively arranged on the left wall of the mounting plate and the left inner wall of the feeding box. One end of the electric telescopic rod is rotatably connected to the left inner wall of the feeding box through the second rotating seat, and the other end of the electric telescopic rod is rotatably connected to the left wall of the mounting plate through another set of second rotating seats. The mounting plate rotates around the axis of the rotating shaft driven by the extension and retraction of the extending shaft of the electric telescopic rod.

[0012] Preferably, the imaging structure includes three cameras. The three cameras are fixedly connected to the front wall of the feeding box in a left-right distribution in sequence. One end of each of the three cameras facing the front wall of the feeding box penetrates through the front wall of the feeding box and extends into the interior of the feeding box. The end of the camera extending into the interior of the feeding box is self-cleaned by a blowing cleaning device.

[0013] Preferably, the baffle structure includes a first baffle, a second baffle, a third baffle, and a fourth baffle. The first baffle, the second baffle, the third baffle, and the fourth baffle are fixedly connected to the upper wall of the partition plate in a left-right distribution in sequence. The first rectangular hole is located between the first baffle and the second baffle in the top view projection. The second rectangular hole is located between the second baffle and the third baffle in the top view projection. The third rectangular hole is located between the third baffle and the fourth baffle in the top view projection. The side cross-sections of the second baffle and the third baffle are both inverted V-shaped. The included angle between the opposite sides of the first baffle and the second baffle is sixty degrees. The included angle between the opposite sides of the second baffle and the third baffle is forty degrees. The included angle between the opposite sides of the third baffle and the fourth baffle is fifty degrees. The left side of the lower end of the inclined pipe is located at the end of the first baffle away from the partition plate in the top view projection. The end of the fourth baffle away from the partition plate is fixedly connected to the right inner wall of the feeding box.

[0014] Preferably, a large particle discharge chute, a medium particle discharge chute, and a small particle discharge chute are fixedly connected to the lower wall of the partition plate in a left-right distribution in sequence. The large particle discharge chute, the medium particle discharge chute, and the small particle discharge chute are respectively vertically opposite to the first rectangular hole, the second rectangular hole, and the third rectangular hole. Two discharge ports are arranged on the front wall of the feeding box in a left-right distribution. The two discharge ports are respectively vertically opposite to the large particle discharge pipe and the small particle discharge pipe. The large particle discharge pipe communicates with the interior of the large particle discharge chute through one discharge port, and the small particle discharge pipe communicates with the interior of the small particle discharge chute through the other discharge port. The medium particle discharge chute communicates with the first feeding pipe through a connecting pipe.

[0015] Preferably, buffer layers are provided on the inner walls of the feed hopper, the feed pipe, the inclined pipe, the outer wall of the first baffle, the outer wall of the second baffle, the outer wall of the third baffle, the outer wall of the fourth baffle, the inner wall of the feeding pipe, the inner wall of the rotary separator, the inner wall of the large particle discharge chute, the inner wall of the medium particle discharge chute, the inner wall of the small particle discharge chute, and the inner wall of the connecting pipe.

[0016] Preferably, a motor is fixedly connected to the front wall of the feed pipe and between the feeding box and the feed hopper. The extending shaft of the motor penetrates through the front wall of the feed pipe and extends into the interior of the feed pipe. One end of the extending shaft of the motor extending into the interior of the feed pipe is fixedly connected with a valve plate. The valve plate is composed of four groups of blades, and the four groups of blades are evenly distributed in a circumferential equal division with the extending shaft of the motor as the axis.

[0017] Preferably, an air inlet window that penetrates inside and outside is arranged at a position on the left wall of the feeding box and at the same horizontal height as the blower, and a filter screen is arranged on the inner side wall of the air inlet window.

[0018] The present invention provides a feeding device for pet food production. It has the following beneficial effects: 1. Compared with the prior art, in this feeding device for pet food production, the material particles for processing pet food are added into the feeding box through the feed hopper, and the material is classified by blowing air through the blower. According to the characteristics that particles with different particle sizes have different weights and different landing points after being blown, classification is carried out, and the large-particle discharge groove, medium-particle discharge groove, and small-particle discharge groove are respectively used for receiving. The large particles and small particles that do not meet the particle size requirements are discharged and then re-crushed and granulated. The medium particles that meet the requirements fall into the feeding pipe and are pneumatically conveyed through compressed air, effectively achieving the purpose of grading and screening of material particles, and the whole process is not blocked, reducing the number of shutdowns for maintenance, and effectively improving the feeding efficiency.

[0019] 2. Compared with the prior art, in this feeding device for pet food production, the pitching angle of the mounting plate is adjusted by the electric telescopic rod, and the air outlet angle of the blower can be adjusted. The three groups of cameras monitor the actual classification of large, medium, and small particles. According to the mature image processing software on the market, the classification accuracy can be accurately obtained, and according to the monitoring situation, the air outlet angle can be finely adjusted through the action of the electric telescopic rod to achieve a better classification effect.

[0020] 3. Compared with the prior art, in this feeding device for pet food production, the dust generated during the classification process and the dust generated during the pneumatic conveying process are respectively sucked away by the bag dust collection device through the first dust suction port and the second dust suction port, effectively avoiding the problem that dust affects the quality of pet food.

[0021] 4. Compared with the prior art, in this feeding device for pet food production, buffer layers are arranged at positions inside that are in contact with the material particles, which can effectively prevent the material particles from being broken after collision during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a partial side cross-sectional view of the internal structure of the feeding box of the present invention; Figure 3 For the present invention Figure 2 Partial enlarged view of location A in the present invention; Figure 4 For the present invention Figure 2 Partial enlarged view of location B in the present invention; Figure 5 Schematic top view structure diagram of the partition board of the present invention; Figure 6 Schematic side partial sectional view of the connection structure of the feeding box and the large particle discharging pipe of the present invention.

[0023] Wherein, 1, support feet; 2, feeding box; 3, feeding pipe; 4, feeding hopper; 5, second feeding pipe; 6, third feeding pipe; 7, rotary separator; 8, air inlet joint; 9, air inlet window; 901, filter screen; 10, large particle discharging pipe; 11, small particle discharging pipe; 12, first dust suction port; 13, second dust suction port; 14, camera; 15, valve plate; 16, inclined pipe; 17, partition board; 1701, first rectangular hole; 1702, second rectangular hole; 1703, third rectangular hole; 18, first baffle; 19, second baffle; 20, third baffle; 21, fourth baffle; 22, large particle discharging groove; 23, medium particle discharging groove; 24, small particle discharging groove; 25, connecting pipe; 26, first feeding pipe; 27, mounting plate; 28, blower; 29, air outlet hood; 30, electric telescopic rod; 31, second rotating seat; 32, discharging port; 33, buffer layer; 34, first rotating seat; 35, motor. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment: As Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a feeding device for pet food production, which includes a feeding box 2, a feeding hopper 4, a feeding pipe, a rotary separator 7, a bag dust collection device, a blowing cleaning device, and a compressed air supply device. The feeding box 2 is supported by four groups of support feet 1. A feeding pipe 3 is fixedly connected to the upper wall of the feeding box 2 near the left wall in a penetrating manner. The feeding hopper 4 is fixedly connected to the upper end of the feeding pipe 3. One end of the feeding pipe 3 extending into the feeding box 2 is fixedly connected to an inclined pipe 16. The included angle between the center line in the length direction of the inner cavity of the inclined pipe 16 and the center line in the length direction of the feeding pipe 3 is 30 degrees. A partition plate 17 is fixedly connected to the inner side wall of the feeding box 2. The inner wall of the partition plate 17 is sequentially provided with a first rectangular hole 1701, a second rectangular hole 1702, and a third rectangular hole 1703 from left to right. An installation plate 27 is rotatably connected to the inner side wall of the feeding box 2 above the partition plate 17 through a first rotating seat 34. The first rotating seat 34 is rotatably connected to the inner side wall of the feeding box 2 through a rotating shaft. A blower 28 for blowing and classifying materials is fixedly connected to the upper wall of the installation plate 27. An air outlet hood 29 is fixedly connected to the air outlet of the blower 28. The air outlet direction of the air outlet hood 29 faces the end of the inclined pipe 16 away from the feeding pipe 3. The size of the air outlet range of the air outlet hood 29 in the front-back direction is larger than the size of the inclined pipe 16 in the front-back direction. A large particle discharge pipe 10 and a small particle discharge pipe 11 are fixedly connected to the front wall of the feeding box 2 from left to right in sequence.

[0026] In order to quantitatively feed the material particles, a motor 35 is fixedly connected to the front wall of the feeding pipe 3 between the feeding box 2 and the feeding hopper 4. The protruding shaft of the motor 35 penetrates the front wall of the feeding pipe 3 and extends into the feeding pipe 3. One end of the protruding shaft of the motor 35 extending into the feeding pipe 3 is fixedly connected to a valve plate 15. The valve plate 15 is composed of four groups of blades. The four groups of blades are evenly distributed in a circumferential equal division with the protruding shaft of the motor 35 as the axis. When the motor 35 rotates, it can drive the four groups of blades to rotate, so as to sequentially drop the material particles located between two adjacent groups of the four groups of blades downward; In order to achieve the classification of material particles, an adjustment structure for adjusting the air outlet angle of the blower 28 is provided between the mounting plate 27 and the inner wall of the feeding box 2. The adjustment structure includes an electric telescopic rod 30 and two groups of second rotating seats 31. The two groups of second rotating seats 31 are respectively arranged on the left wall of the mounting plate 27 and the inner left wall of the feeding box 2. One end of the electric telescopic rod 30 is rotatably connected to the inner left wall of the feeding box 2 through the second rotating seat 31, and the other end of the electric telescopic rod 30 is rotatably connected to the left wall of the mounting plate 27 through another group of second rotating seats 31. The mounting plate 27 is driven to rotate around the axis of the rotating shaft by the extension and retraction of the extending shaft of the electric telescopic rod 30. The extension and retraction of the extending shaft of the electric telescopic rod 30 can drive the blower 28 to change the air outlet direction, so as to adjust the blowing angle of the material particles. After the material is added into the feeding pipe 3 from the feeding hopper 4, it is quantitatively dropped by the valve plate 15 and enters the feeding box 2 along the inclined pipe 16, and then is blown to the right side of the feeding box 2 by the air curtain generated by the blower 28. Material particles of different sizes have different weights, and their landing points are distributed according to the characteristics of near-heavy and far-light after being blown by the wind, so as to achieve the purpose of classifying material particles of different sizes; In order to facilitate the air intake of the blower 28, an air inlet window 9 that is internally and externally penetrated is provided at a position on the left wall of the feeding box 2 and at the same horizontal height as the blower 28. A filter screen 901 is arranged on the inner side wall of the air inlet window 9. The blower 28 intakes air through the air inlet window 9, and at the same time filters the dust in the air through the filter screen 901; In order to monitor the classification process, a plurality of camera structures for monitoring the material classification situation are arranged on the front wall of the feeding box 2. The camera structure includes three groups of cameras 14. The three groups of cameras 14 are fixedly connected to the front wall of the feeding box 2 in a left-right distribution in sequence. One end of the three groups of cameras 14 facing the front wall of the feeding box 2 all penetrates the front wall of the feeding box 2 and extends into the interior of the feeding box 2. One end of the camera 14 extending into the interior of the feeding box 2 is self-cleaned by a blowing cleaning device. In this embodiment, it also includes an image processing software for analyzing images and a control computer for installing the image processing software, which are all common technologies in the market. The image processing software processes the images according to the images collected by the cameras 14 and the set particle size classification size of the materials. The blowing cleaning device is also a mature technology existing in the market, and the camera 14 is cleaned by blowing to avoid affecting its collection effect. When the material particles are classified by the form of blowing and tossing, the mixing conditions of the three kinds of granular materials after tossing are monitored by the three groups of cameras 14 respectively. By finely adjusting the air outlet angle of the blower 28 through the adjustment structure, the mixing of medium particles in the processed pet food can be minimized, thus ensuring the quality of the subsequent pet food; In order to collect the classified material particles, a baffle structure for receiving the classified materials at all levels after material classification is provided on the upper wall of the partition plate 17. The baffle structure includes a first baffle 18, a second baffle 19, a third baffle 20, and a fourth baffle 21. The first baffle 18, the second baffle 19, the third baffle 20, and the fourth baffle 21 are fixedly connected to the upper wall of the partition plate 17 in sequence from left to right. The first rectangular hole 1701 is located between the first baffle 18 and the second baffle 19 in the top view projection. The second rectangular hole 1702 is located between the second baffle 19 and the third baffle 20 in the top view projection. The third rectangular hole 1703 is located between the third baffle 20 and the fourth baffle 21 in the top view projection. The side cross-sections of the second baffle 19 and the third baffle 20 are both inverted V-shaped. The included angle between the opposite sides of the first baffle 18 and the second baffle 19 is 60 degrees. The included angle between the opposite sides of the second baffle 19 and the third baffle 20 is 40 degrees. The included angle between the opposite sides of the third baffle 20 and the fourth baffle 21 is 50 degrees. The end of the first baffle 18 away from the partition plate 17 is located on the left side of the lower end of the inclined tube 16 in the top view projection. The end of the fourth baffle 21 away from the partition plate 17 is fixedly connected to the inner right wall of the upper feeding box 2. The lower wall of the partition plate 17 is fixedly connected with a large particle discharge chute 22, a medium particle discharge chute 23, and a small particle discharge chute 24 in sequence from left to right. The large particle discharge chute 22, the medium particle discharge chute 23, and the small particle discharge chute 24 are respectively vertically opposite to the first rectangular hole 1701, the second rectangular hole 1702, and the third rectangular hole 1703. Two groups of discharge ports 32 are provided on the front wall of the upper feeding box 2 in sequence from left to right. The two groups of discharge ports 32 are respectively vertically opposite to the large particle discharge pipe 10 and the small particle discharge pipe 11. The large particle discharge pipe 10 communicates with the inside of the large particle discharge chute 22 through a group of discharge ports 32, and the small particle discharge pipe 11 communicates with the inside of the small particle discharge chute 24 through the other group of discharge ports 32. The medium particle discharge chute 23 communicates with the first feeding pipe 26 through a connecting pipe 25. Through the baffle structure, three trumpet-shaped collection areas with their mouths facing upward are formed to collect large particle materials, medium particle materials, and small particle materials respectively; In order to feed the screened material particles that meet the processing requirements, the feeding pipe is composed of a first feeding pipe 26, a second feeding pipe 5, and a third feeding pipe 6. The first feeding pipe 26 is fixedly connected to the inner lower wall of the feeding box 2. The right end of the first feeding pipe 26 penetrates through the right wall of the feeding box 2 and extends to the right side of the feeding box 2. The second feeding pipe 5 and the third feeding pipe 6 are sequentially fixedly connected to one end of the first feeding pipe 26 that extends outside the feeding box 2. The rotary separator 7 is fixedly connected to one end of the third feeding pipe 6 away from the second feeding pipe 5. A feeding port is arranged at the lower end of the rotary separator 7. A first dust suction port 12 and a second dust suction port 13 are respectively arranged on the upper wall of the feeding box 2 at the end far from the feeding pipe 3 and on the upper wall of the rotary separator 7. One end of the first dust suction port 12 away from the feeding box 2 and one end of the second dust suction port 13 away from the rotary separator 7 are respectively connected to the bag dust collection device through a set of hoses. The air inlet joint 8 is fixedly connected to the left wall of the feeding box 2 near the lower wall position. One end of the air inlet joint 8 facing the feeding box 2 sequentially penetrates through the left wall of the feeding box 2 and the left end of the first feeding pipe 26 and is communicated with the inside of the first feeding pipe 26. One end of the air inlet joint 8 away from the feeding box 2 is connected to the compressed air supply device through an air pipe. The compressed air supply device supplies compressed air into the feeding pipe through the air pipe and the air inlet joint 8. The compressed air drives the material particles entering the feeding pipe to move towards the rotary separator 7. After the compressed air mixed with the material particles enters the rotary separator 7, it is separated from the material particles. The material particles are fed downward through the feeding port by their own weight. The compressed air is sucked away from the second dust suction port 13 by the bag dust collection device. The dust generated during the feeding process is all sucked away by the bag dust collection device. The connecting pipe 25 is obliquely connected to the first feeding pipe 26, so that the compressed air will not backflush the connecting pipe 25 when passing through the first feeding pipe 26, but only attract the material particles in the connecting pipe 25 into the first feeding pipe 26; In order to reduce the collision and fragmentation of material particles during work, buffer layers 33 are provided on the inner side wall of the feed hopper 4, the inner side wall of the feed pipe 3, the inner side wall of the inclined pipe 16, the outer wall of the first baffle 18, the outer wall of the second baffle 19, the outer wall of the third baffle 20, the outer wall of the fourth baffle 21, the inner side wall of the feeding pipe, the inner side wall of the rotary separator 7, the inner side wall of the large particle discharge chute 22, the inner side wall of the medium particle discharge chute 23, the inner side wall of the small particle discharge chute 24, and the inner side wall of the connecting pipe 25. Through the multiple buffer layers 33, the problem of collision and fragmentation of material particles during the feeding process can be effectively reduced.

[0027] Working principle: When the motor 35 rotates, it can drive the four groups of blades to rotate, thereby sequentially dropping the material particles located between two adjacent groups of the four groups of blades downward; after the material is added from the feed hopper 4 into the feed pipe 3, it is quantitatively dropped by the valve plate 15 and enters the feeding box 2 along the inclined pipe 16, and then is blown to the right side of the feeding box 2 by the air curtain generated by the blower 28. Material particles of different sizes have different weights, and their landing points are distributed according to the characteristics of heavier near and lighter far after being blown by the wind, so as to achieve the purpose of classifying material particles of different sizes; the blower 28 intakes air through the air inlet window 9, and at the same time filters the dust in the air through the filter screen 901 when intaking air; in this embodiment, it also includes an image processing software for analyzing images and a control computer for installing the image processing software, both of which are common technologies in the market. The image processing software processes the images according to the images collected by the camera 14 and the set size of the material particle size classification. The air blowing cleaning device is also a mature technology in the market, and it cleans the camera 14 by blowing air to avoid affecting its collection effect. When the material particles are classified by size in the form of air blowing and throwing, the mixing conditions of the three sizes of material particles after throwing are monitored by three cameras 14 respectively. By adjusting the structure to finely adjust the air outlet angle of the blower 28, the mixing of medium-sized particles in the processed pet food can be minimized, thus ensuring the quality of the subsequent pet food; through the baffle structure, three trumpet-shaped collection areas with their mouths facing upward are formed to collect large-sized material particles, medium-sized material particles, and small-sized material particles respectively; the compressed air supply device supplies compressed air into the feed pipe through the air pipe and the air inlet joint 8, and drives the material particles entering the feed pipe to move towards the rotary separator 7 through the compressed air. After the compressed air mixed with the material particles enters the rotary separator 7, it is separated from the material particles. The material particles are fed upward through the feeding port by their own weight, and the compressed air is sucked away from the second dust suction port 13 by the cloth bag dust collection device. The dust generated during the feeding process is all sucked away by the cloth bag dust collection device. Through multiple buffer layers 33, the problem of bumping and cracking of the material particles during the feeding process can be effectively reduced.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for pet food production, characterized in that: It includes a feeding box (2), a feeding hopper (4), a feeding pipe, a rotary separator (7), a bag dust collection device, a blowing cleaning device, and a compressed air supply device. The feeding box (2) is supported by four groups of support feet (1). A feeding pipe (3) is fixedly connected to the upper wall of the feeding box (2) near the left wall in a penetrating manner. The feeding hopper (4) is fixedly connected to the upper end of the feeding pipe (3). One end of the feeding pipe (3) extending into the interior of the feeding box (2) is fixedly connected to an inclined pipe (16). The included angle between the central line in the length direction of the inner cavity of the inclined pipe (16) and the central line in the length direction of the feeding pipe (3) is 30 degrees. A partition plate (17) is fixedly connected to the inner side wall of the feeding box (2). The inner wall of the partition plate (17) is provided with a first rectangular hole (1701), a second rectangular hole (1702), and a third rectangular hole (1703) in a left-right distribution in sequence. An installation plate (27) is rotatably connected to the inner side wall of the feeding box (2) above the partition plate (17) through a first rotating seat (34). The first rotating seat (34) is rotatably connected to the inner side wall of the feeding box (2) through a rotating shaft. A blower (28) for blowing and grading materials is fixedly connected to the upper wall of the installation plate (27). An air outlet hood (29) is fixedly connected to the air outlet of the blower (28). The air outlet direction of the air outlet hood (29) faces the end of the inclined pipe (16) away from the feeding pipe (3). The size of the air outlet range of the air outlet hood (29) in the front-back direction is larger than the size of the inclined pipe (16) in the front-back direction. The front wall of the feeding box (2) is fixedly connected with a large particle discharge pipe (10) and a small particle discharge pipe (11) in a left-right distribution in sequence.

2. The feeding device for pet food production according to claim 1, characterized in that: The feeding pipe is composed of a first feeding pipe (26), a second feeding pipe (5), and a third feeding pipe (6). The first feeding pipe (26) is fixedly connected to the inner lower wall of the feeding box (2). The right end of the first feeding pipe (26) penetrates the right wall of the feeding box (2) and extends to the right side of the feeding box (2). The second feeding pipe (5) and the third feeding pipe (6) are fixedly connected to one end of the first feeding pipe (26) extending outside the feeding box (2) in sequence. The rotary separator (7) is fixedly connected to one end of the third feeding pipe (6) away from the second feeding pipe (5). A feeding port is arranged at the lower end of the rotary separator (7). A first dust suction port (12) and a second dust suction port (13) are respectively arranged on the upper wall of the feeding box (2) at the end away from the feeding pipe (3) and the upper wall of the rotary separator (7). One end of the first dust suction port (12) away from the feeding box (2) and one end of the second dust suction port (13) away from the rotary separator (7) are respectively connected to the bag dust collection device through a group of hoses. An air inlet joint (8) is fixedly connected to the left wall of the feeding box (2) near the lower wall. One end of the air inlet joint (8) facing the feeding box (2) penetrates the left wall of the feeding box (2) and the left end of the first feeding pipe (26) in sequence and is communicated with the interior of the first feeding pipe (26). One end of the air inlet joint (8) away from the feeding box (2) is connected to the compressed air supply device through an air pipe.

3. The feeding device for pet food production according to claim 2, characterized in that: An adjustment structure for adjusting the air outlet angle of the blower (28) is provided between the mounting plate (27) and the inner wall of the feeding box (2). A plurality of camera structures for monitoring the material classification situation are provided on the front wall of the feeding box (2). A baffle structure for receiving each level of material after material classification is provided on the upper wall of the partition plate (17).

4. The feeding device for pet food production according to claim 3, characterized in that: The adjustment structure includes an electric telescopic rod (30) and two sets of second rotating seats (31). The two sets of second rotating seats (31) are respectively arranged on the left wall of the mounting plate (27) and the inner left wall of the feeding box (2). One end of the electric telescopic rod (30) is rotatably connected to the inner left wall of the feeding box (2) through the second rotating seat (31), and the other end of the electric telescopic rod (30) is rotatably connected to the left wall of the mounting plate (27) through another set of second rotating seats (31). The mounting plate (27) rotates around the axis of the rotating shaft driven by the extension and retraction of the extending shaft of the electric telescopic rod (30).

5. The feeding device for pet food production according to claim 4, characterized in that: The camera structure includes three cameras (14). The three cameras (14) are fixedly connected in sequence from left to right on the front wall of the feeding box (2). One end of each of the three cameras (14) facing the front wall of the feeding box (2) penetrates through the front wall of the feeding box (2) and extends into the interior of the feeding box (2). The end of the camera (14) extending into the interior of the feeding box (2) is self-cleaned by a blowing cleaning device.

6. The feeding device for pet food production according to claim 5, characterized in that: The baffle structure includes a first baffle (18), a second baffle (19), a third baffle (20), and a fourth baffle (21). The first baffle (18), the second baffle (19), the third baffle (20), and the fourth baffle (21) are fixedly connected in sequence from left to right on the upper wall of the partition plate (17). The first rectangular hole (1701) is located between the first baffle (18) and the second baffle (19) in the top view projection. The second rectangular hole (1702) is located between the second baffle (19) and the third baffle (20) in the top view projection. The third rectangular hole (1703) is located between the third baffle (20) and the fourth baffle (21) in the top view projection. The side cross-sections of the second baffle (19) and the third baffle (20) are both in an inverted V shape. The included angle between the opposite sides of the first baffle (18) and the second baffle (19) is sixty degrees. The included angle between the opposite sides of the second baffle (19) and the third baffle (20) is forty degrees. The included angle between the opposite sides of the third baffle (20) and the fourth baffle (21) is fifty degrees. The end of the first baffle (18) away from the partition plate (17) is located on the left side of the lower end of the inclined pipe (16) in the top view projection. The end of the fourth baffle (21) away from the partition plate (17) is fixedly connected to the inner right wall of the feeding box (2).

7. The feeding device for pet food production according to claim 6, characterized in that: The lower wall of the partition plate (17) is fixedly connected in sequence from left to right with a large-particle discharge chute (22), a medium-particle discharge chute (23), and a small-particle discharge chute (24). The large-particle discharge chute (22), the medium-particle discharge chute (23), and the small-particle discharge chute (24) are respectively vertically opposite to the first rectangular hole (1701), the second rectangular hole (1702), and the third rectangular hole (1703). The front wall of the feeding box (2) is provided with two groups of discharge ports (32) distributed from left to right. The two groups of discharge ports (32) are respectively vertically opposite to the large-particle discharge pipe (10) and the small-particle discharge pipe (11). The large-particle discharge pipe (10) is internally communicated with the large-particle discharge chute (22) through a group of discharge ports (32), and the small-particle discharge pipe (11) is internally communicated with the small-particle discharge chute (24) through the other group of discharge ports (32). The medium-particle discharge chute (23) is communicated with the first feeding pipe (26) through a connecting pipe (25).

8. The feeding device for pet food production according to claim 7, characterized in that: Buffer layers (33) are provided on the inner side walls of the feeding hopper (4), the feeding pipe (3), the inclined pipe (16), the outer walls of the first baffle (18), the second baffle (19), the third baffle (20), the fourth baffle (21), the inner side walls of the feeding pipes, the inner side walls of the rotary separator (7), the inner side walls of the large-particle discharge chute (22), the inner side walls of the medium-particle discharge chute (23), the inner side walls of the small-particle discharge chute (24), and the inner side wall of the connecting pipe (25).

9. The feeding device for pet food production according to claim 8, characterized in that: A motor (35) is fixedly connected to the front wall of the feeding pipe (3) and located between the feeding box (2) and the feeding hopper (4). The extending shaft of the motor (35) penetrates through the front wall of the feeding pipe (3) and extends into the interior of the feeding pipe (3). One end of the extending shaft of the motor (35) extending into the interior of the feeding pipe (3) is fixedly connected with a valve plate (15). The valve plate (15) is composed of four groups of blades, and the four groups of blades are evenly distributed in a circumferential equidistant manner with the extending shaft of the motor (35) as the axis.

10. The feeding device for pet food production according to claim 9, wherein: An air inlet window (9) that is internally and externally communicated is provided at a position on the left wall of the feeding box (2) at the same horizontal height as the blower (28). A filter screen (901) is provided on the inner side wall of the air inlet window (9).

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