Sheet pet feed extrusion device

Abstract

The invention belongs to the technical field of feed processing, and discloses a flaky pet feed extrusion device which comprises a base, a feeding assembly, a forming assembly, a discharging assembly and a dust removal assembly are arranged on the base, the forming assembly comprises a mounting frame, a driving roller and a driven roller are rotationally arranged on the mounting frame, and a driving motor is arranged at one end of the driving roller; the driving roller and the driven roller are connected through a forming belt, a plurality of forming holes are formed in the forming belt in a matrix mode, an extrusion roller is arranged on the side, away from the mounting plate, of the forming belt, an extrusion motor is arranged at one end of the extrusion roller, and the roller surface of the extrusion roller is attached to the belt surface of the forming belt. The plate face of the lining plate is attached to the belt face, opposite to one side of the extrusion roller, of the forming belt, and a plurality of demolding columns are correspondingly arranged on the driven roller. Material powder is extruded into the forming holes under the rotation of the forming belt and the extrusion rollers to be formed into sheets, then demolding is conducted through the demolding columns, crushing cannot be caused, the completeness of formed feed is guaranteed, the production efficiency is high, and automatic production can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of feed processing, in particular to a flaky pet feed extrusion device. Background Art

[0002] Pet feed can provide comprehensive nutrition for pets such as cats and dogs, and its scientific formula and reliable quality make it very popular among pet owners and has a broad market. Currently, pet feed mainly comes in the form of tablets, powders, granules, soft granules, pastes, hard capsules, soft capsules, etc., among which tablet pet feed has the highest sales volume.

[0003] At present, there are two main ways to produce flaky pet feed. One is to mix the feed raw materials into a plasticine-like shape, and then use a machine to squeeze the feed into a mold, and then demold it after drying. This production method is more labor-intensive and time-consuming, which is not conducive to improving production efficiency. The other way is to make each feed raw material into powder and mix it, and then use a double-roll extrusion granulator to extrude it into flakes. The principle is to first extrude the powder material into a honeycomb plate through a pair of rollers with honeycomb holes on the surface, and then use the sawtooth roller below to break the plate material into a flake material. No drying is required after forming, and the production efficiency is high. However, the device needs to be broken by a sawtooth roller, and while breaking the honeycomb plate material into flake materials, it will also cause the flake material to be broken, thereby affecting the integrity of the material after forming. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a flaky pet food extrusion device.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a flaky pet feed extrusion device, comprising a base, on which a feeding assembly, a molding assembly, a feeding assembly and a dust removal assembly are arranged, the feeding assembly comprises a silo and a feeding auger arranged under the silo; the molding assembly comprises a mounting frame arranged on the base, on which a driving roller and a driven roller arranged at intervals up and down are rotatably arranged, a driving motor is arranged at one end of the driving roller, the driving roller and the driven roller are connected by a molding belt, a plurality of molding holes are arranged in a matrix on the molding belt, an extrusion roller is arranged on the side of the molding belt away from the mounting plate, and one end of the extrusion roller is arranged An extrusion motor, the roller surface of the extrusion roller is in contact with the belt surface of the forming belt, a lining plate is further arranged between the active roller and the driven roller, the plate surface of the lining plate is in contact with the belt surface of the forming belt on the side opposite to the extrusion roller, a discharge trough is arranged at the lower end of the feed auger, the notch of the discharge trough faces the angle area between the extrusion roller and the forming belt and forms a feed cavity of the forming component with the area, a number of demoulding columns are evenly arranged on the roller surface of the driven roller corresponding to the forming holes; the discharge component includes a discharge trough arranged at the discharge port of the forming component; the dust removal component includes a protective cover arranged on the forming component, a dust suction pipe is connected to the protective cover, and a dust collector is arranged at the end of the dust suction pipe away from the dust cover.

[0006] By adopting the above technical scheme, a feeding component, a molding component, a feeding component and a dust removal component are arranged. The molding component is provided with an active roller, a driven roller, a molding belt, a molding hole, an extrusion roller, a liner, a feeding cavity and a demoulding column. The material powder is conveyed to the feeding cavity through the feeding component, and then the material powder is extruded into the molding hole under the rotation of the molding belt and the extrusion roller. Since the liner and the extrusion roller are respectively in contact with the belt surfaces on both sides of the molding belt, the material powder is compacted in the molding hole and formed into a sheet. Then, as the molding belt moves, when it moves to the driven roller position, The demoulding column on the driven roller cooperates with the forming hole on the forming belt, and the flake feed in the forming hole is squeezed out by the demoulding column and falls into the feeding trough of the feeding assembly for outward transportation. During demoulding, the free powder will reach the dust collector through the dust suction pipe and be filtered, so as to avoid the free material powder from being emitted into the air and affecting the surrounding environment. Through the above structure, the material powder is extruded and molded and then demoulded directly, which will not cause breakage of the formed flake product, thus ensuring the integrity of the formed feed, and realizing automated production, which greatly saves production time and has high production efficiency.

[0007] Furthermore, the driven roller is a hollow roller, an air inlet pipe is coaxially arranged in the middle of its inner cavity, an air outlet slot opening horizontally toward the roller wall is arranged on the side of the inner cavity adjacent to the extrusion roller, two slot wall edges of the air outlet slot are in rolling sealing contact with the inner roller wall of the driven roller, the air inlet pipe and the air outlet slot are connected through a plurality of ventilation pipes, a cavity connected to the inner cavity of the hollow roller is arranged in the demoulding column, a plurality of blowing holes connected to the cavity are arranged on the side wall of the demoulding column, one end of the air inlet pipe is sealed, and the other end is connected to the blower through the main air pipe.

[0008] By adopting the above technical scheme, an air inlet pipe, a ventilation pipe and an air outlet slot are arranged in the driven roller, and a cavity and a blowing hole are arranged in the demoulding column. In this way, air can be blown into the driven roller by a blower, and the air can be blown to the side of the forming hole at the unloading position through the air inlet pipe, the ventilation pipe, the air outlet slot, the cavity and the blowing hole. In this way, the forming hole can be cleaned when the forming hole is demolded and unloaded, so as to avoid some powder adhering to the wall of the forming hole and affecting the integrity of the subsequent molded product.

[0009] Furthermore, a connecting frame is provided on the mounting frame below the driven roller, and a scraper is provided on the connecting frame. The scraper is bent from the connecting frame toward the side of the molding belt adjacent to the extrusion roller and its thickness gradually becomes thinner. The thin edge of the scraper is located below the center line of the driven roller and close to the surface of the molding belt.

[0010] By adopting the above technical solution, a scraper is arranged under the driven roller, which can prevent the sheet material in the forming hole from being partially adhered after demolding and making it impossible to unload the material. At the same time, the surface of the forming belt is also cleaned to prevent the material from adhering to the surface of the forming belt and affecting the operation of the equipment.

[0011] Furthermore, the connecting frame includes two connecting plates arranged at intervals, a connecting shaft is provided between the two connecting plates, and the scraper is provided with a connecting block at one end of the connecting frame, the connecting block is rotatably connected to the connecting shaft, and a torsion spring is also provided on the connecting shaft, and the torsion spring provides a resisting force for the scraper toward the forming belt.

[0012] By adopting the above technical solution, a connecting plate, a connecting shaft, a connecting block and a torsion spring are set to provide the scraper with a pressing force toward the molding belt, so that the scraper can always press against the surface of the molding belt to avoid gaps that affect the cleaning effect.

[0013] Furthermore, mounting plates are provided on the mounting frame on both sides of the molding belt, and the mounting plates are fixedly connected to the side edges of the lining plate. The upper edge of the lining plate is higher than the feed cavity of the molding assembly, and the lower edge of the lining plate is flush with the top of the driven roller. A comb plate is also provided at the lower end of the lining plate, and the lower end of the comb plate extends to the plane where the center line of the driven roller is located. The thickness of the comb plate gradually becomes thinner from top to bottom, and the tooth gap of the comb plate is larger than the diameter of the demolding column, and the tooth width is smaller than the spacing between two adjacent demolding columns.

[0014] By adopting the above technical solution, the liner is fixed by the mounting plate so that the liner is always lifted and engaged on the surface of the forming belt, and a comb plate is arranged at the lower end of the liner. On the one hand, the lower forming belt is blocked to prevent the sheet material in the forming hole from falling into the area between the active roller and the driven roller. On the other hand, the demoulding column on the driven roller is avoided by the arrangement of the comb teeth.

[0015] Furthermore, the feeding assembly includes a vertically arranged feeding auger, a feeding pipe is provided on the upper part of the feeding auger, a silo is provided at the lower end of the feeding auger, a plurality of feeding pipes are connected to the bottom of the silo, the feeding auger is provided with a plurality of corresponding feeding pipes and are all arranged obliquely, the lower end of the feeding pipe is connected to the upper part of the feeding auger, a discharge pipe is provided at the lower end of the feeding auger, and the discharge pipe is connected to the discharge trough.

[0016] By adopting the above technical solution, a loading auger, a feeding pipe and a silo are set up, centralized loading can be carried out, and then the materials are transported to the discharge trough respectively through a plurality of unloading pipes and feeding augers. Each feeding auger can be controlled independently, which can further ensure smooth unloading.

[0017] Furthermore, a plurality of sleeves connected to the trough cavity are provided at the bottom of the discharge trough, the sleeves are sleeved on the lower tube wall of the discharge pipe, a fixing plate is provided on the upper tube wall of the discharge pipe, a compression spring is sleeved on the discharge pipe between the fixing plate and the bottom of the discharge trough, one end of the compression spring abuts against the fixing plate, and the other end abuts against the bottom of the discharge trough, and a flexible rubber plate is provided on the edge of the trough wall of the discharge trough.

[0018] By adopting the above technical solution, a sleeve, a fixed plate and a compression spring are set, and the elastic force of the compression spring is used to press the discharge trough, so that the flexible rubber plate on the edge of the discharge trough wall is always pressed against the extrusion roller and the molding belt, thereby avoiding the leakage of material powder when a gap appears between the discharge trough and the extrusion roller and the molding belt.

[0019] Furthermore, a feeding tube box is provided at the lower end of the feeding chute, and the feeding tube box extends into the base through the top plate of the base. A conveyor belt is also provided in the base, and one end of the conveyor belt is located at the lower end of the feeding tube box, and the other end extends outside the base.

[0020] By adopting the above technical solution, a feeding tube box and a conveyor belt are provided to facilitate the conveying of the formed flake feed.

[0021] Furthermore, the air outlet of the dust collector is connected to the air inlet of the blower through an exhaust pipe.

[0022] By adopting the above technical solution, the air outlet of the dust collector is connected to the air inlet of the blower through the exhaust pipe, so that the air filtered by the dust collector can be blown into the air inlet pipe again by the blower to form a circulation channel.

[0023] In summary, the present invention has the following beneficial effects: in the present application, by setting a feeding component, a molding component, a feeding component and a dust removal component, the molding component is provided with an active roller, a driven roller, a molding belt, a molding hole, an extrusion roller, a lining plate, a feeding cavity and a demoulding column, the material powder is conveyed into the feeding cavity through the feeding component, and then the material powder is extruded into the molding hole under the rotation of the molding belt and the extrusion roller, because the lining plate and the extrusion roller are respectively in contact with the belt surfaces on both sides of the molding belt, the material powder is compacted in the molding hole and formed into a sheet, and then with the movement of the molding belt, when the movement When it reaches the driven roller, the demoulding column on the driven roller cooperates with the forming hole on the forming belt, and the flake feed in the forming hole is squeezed out through the demoulding column and falls into the discharge trough of the discharge component for outward transportation. During demoulding, the free powder will reach the dust collector through the dust suction pipe and be filtered, so as to avoid the free material powder from being emitted into the air and affecting the surrounding environment. Through the above structure, the material powder is extruded and molded and then demoulded directly, which will not cause breakage of the formed flake product, thus ensuring the integrity of the formed feed, and realizing automated production, greatly saving production time and having high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a feeding component part of an embodiment of the present invention; Figure 3 is a schematic cross-sectional structure diagram of a molding component part of an embodiment of the present invention; Figure 4 yes Figure 3 A magnified schematic diagram of part A; Figure 5 is a schematic structural diagram of a molding component part of an embodiment of the present invention; Figure 6 It is a structural schematic diagram for highlighting the lining plate and the driven roller part of an embodiment of the present invention; Figure 7 It is a schematic structural diagram of the driven roller part of an embodiment of the present invention.

[0025] In the figure: 10, base; 20, feeding assembly; 21, silo; 22, feeding auger; 23, discharge trough; 231, sleeve; 232, flexible rubber sheet; 24, feeding auger; 25, feeding pipe; 26, feeding pipe; 27, discharge pipe; 28, fixing plate; 29, compression spring; 30, forming assembly; 31, mounting frame; 32, active roller; 321, driving motor; 33, driven roller; 331, demoulding column; 332, air inlet pipe; 333, air outlet trough; 334, ventilation pipe; 335, cavity; 336, blowing hole; 34. Forming belt; 341. Forming hole; 35. Extrusion roller; 351. Extrusion motor; 36. Lining plate; 361. Mounting plate; 362. Comb plate; 37. Feed chamber; 38. Connecting frame; 381. Connecting plate; 382. Connecting shaft; 383. Torsion spring; 39. Scraper; 391. Connecting block; 40. Feeding assembly; 41. Feeding chute; 42. Feeding tube box; 43. Conveyor belt; 50. Dust removal assembly; 51. Protective cover; 52. Dust suction tube; 53. Dust collector; 60. Blower; 61. Main air duct; 62. Exhaust duct. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0027] like Figure 1-7 As shown, the embodiment of the present application discloses a flake pet feed extrusion device, including a base 10, on which a feeding component 20, a molding component 30, a feeding component 40 and a dust removal component 50 are arranged. The feeding component 20 is used for feeding. The raw material of this embodiment is feed raw material powder configured according to a formula and evenly mixed; the molding component 30 is used to extrude the feed raw material powder into flakes; the feeding component 40 is used to transport the formed flake feed outwards, and the dust removal component 50 is used to absorb and filter the powder free in the air during the extrusion and feeding process to prevent the powder from being emitted into the air and affecting the surrounding environment.

[0028] Specifically, the feeding assembly 20 includes a vertically arranged feeding auger 24, and a feeding pipe 25 is arranged on the upper part of the feeding auger 24, and the feeding pipe 25 is used for feeding; a silo 21 is arranged at the lower end of the feeding auger 24, and a plurality of discharge pipes 26 are arranged at the bottom of the silo 21, and the discharge pipes 26 are arranged vertically, and are used for dispersing and discharging the materials in the silo 21, so as to avoid the failure of a single discharge pipe 26 affecting the overall discharge. An inclined feeding auger 22 is arranged correspondingly below the discharge pipe 26, and the diameter of the feeding auger 22 is smaller than that of the feeding auger 24, and is used for dispersing and conveying the materials to the forming assembly 30. The upper part of the feeding auger 22 is connected to the lower end of the discharge pipe 26, and a discharge pipe 27 is arranged at the discharge port of the lower end of the feeding auger 22. In this embodiment, three discharge pipes 26 and three feeding augers 22 are arranged, and the rotation speed of the three feeding augers 22 can be independently controlled, so as to facilitate the adjustment of the discharge. A discharge trough 23 is provided at the discharge port of the discharge pipe 27, the notch of the discharge trough 23 faces the molding assembly 30, and three sleeves 231 are provided at the bottom of the discharge trough 23 to communicate with the groove cavity. The inner diameter of the sleeve 231 is consistent with the outer diameter of the discharge pipe 27. The sleeve 231 is sleeved on the lower tube wall of the corresponding discharge pipe 27, so that the sleeve 231 and the discharge pipe 27 can slide relative to each other, and the three discharge pipes 27 are connected to the groove cavity of the discharge trough 23 through the sleeve 231. A fixing plate 28 is provided on the upper tube wall of the discharge pipe 27, and a compression spring 29 is sleeved on the discharge pipe 27 between the fixing plate 28 and the bottom of the discharge trough 23, one end of the compression spring 29 abuts against the fixing plate 28, and the other end abuts against the bottom of the discharge trough 23, and the compression spring 29 provides elastic force for the discharge trough 23 to face the molding assembly 30.

[0029] The forming assembly 30 includes a mounting frame 31 disposed on the base 10, on which an active roller 32 and a driven roller 33 are rotatably disposed at intervals in the upper and lower directions. The active roller 32 and the driven roller 33 are connected by a forming belt 34. A driving motor 321 is disposed at one end of the active roller 32, and the active roller 32 is driven to rotate by the driving motor 321, thereby driving the driven roller 33 and the forming belt 34 to rotate. A plurality of forming holes 341 are arranged in a matrix on the forming belt 34, that is, a row of forming holes 341 are arranged at intervals in the width direction of the forming belt 34, and then the row of forming holes 341 are evenly spaced in the length square thereof. The forming holes 341 are used to store and form the extruded feed raw material powder. The forming holes 341 can be circular, triangular, square, pentagonal or other shapes, which can be selected according to product requirements. The present embodiment takes a circular shape as an example.

[0030] Several rows of demoulding columns 331 are arranged in annular intervals on the roller surface of the driven roller 33. The number of demoulding columns 331 in a row is consistent with the number of forming holes 341 in a row in the width direction of the forming belt 34 and corresponds one to one. The arc spacing between two adjacent rows of demoulding column 331 brackets is consistent with the spacing between two adjacent rows of forming holes 341 in the length direction of the forming belt 34, so that when the forming belt 34 contacts the driven roller 33, the forming holes 341 correspond one to one with the demoulding columns 331. The diameter of the demoulding columns 331 is smaller than the diameter of the forming holes 341, so that when the demoulding columns 331 cooperate with the forming holes 341, the flake feed in the forming holes 341 can be ejected to achieve demoulding.

[0031] A squeezing roller 35 is arranged on the side of the forming belt 34 away from the mounting plate 361, and a squeezing motor 351 is arranged at one end of the squeezing roller 35, and the squeezing motor 351 is used to drive the squeezing roller 35 to rotate. The roller surface of the squeezing roller 35 is in contact with the belt surface of the forming belt 34, so that an angle area is formed between the squeezing roller 35 and the forming belt 34, and the notch of the discharge trough 23 faces the angle area. Under the elastic force of the compression spring 29, the edges of the groove wall of the discharge trough 23 are respectively pressed against the squeezing roller 35 and the forming belt 34. In order to ensure the sealing performance of the groove wall edge of the discharge trough 23 and the squeezing roller 35 and the forming belt 34 during movement, a flexible rubber plate 232 is arranged on the groove wall edge of the discharge trough 23. The flexible rubber plate 232 contacts the squeezing roller 35 and the forming belt 34, which can not only ensure the sealing performance of the contact position, but also make the discharge trough 23 contact with the squeezing roller 35 and the forming belt 34 flexibly, so as to avoid scratching the squeezing roller 35 and the forming belt 34. In this way, the area between the discharge trough 23 and the squeezing roller 35 and the forming belt 34 forms the feed cavity 37 of the forming assembly 30. In order to prevent the feed raw material powder from falling into the inner area of ​​the forming belt 34 after entering the forming hole 341, a lining plate 36 is arranged between the active roller 32 and the driven roller 33 near the squeezing roller 35. The two sides of the lining plate 36 are fixedly connected to the mounting frame 31 through the mounting plate 361. The plate surface of the lining plate 36 fits with the belt surface of the forming belt 34 on the side opposite to the squeezing roller 35, thereby blocking the end surface of the part of the forming hole 341 away from the squeezing roller 35, and forming a groove with the forming hole 341. In this way, when the forming belt 34 moves, the feed raw material powder can be squeezed into the groove by the squeezing roller 35 to form a sheet.

[0032] In the specific configuration, the upper plate edge of the lining plate 36 is higher than the feed cavity 37 of the molding assembly 30, and the lower plate edge is flush with the top of the driven roller 33. A comb plate 362 is also provided at the lower end of the lining plate 36. The thickness of the comb plate 362 gradually decreases from top to bottom. The lower end of the comb plate 362 extends to the plane where the center line of the driven roller 33 is located to avoid the roller surface of the driven roller 33. It is further configured that the tooth gap of the comb plate 362 is larger than the diameter of the demoulding column 331, and the tooth width is smaller than the spacing between two adjacent demoulding columns 331.

[0033] The driven roller 33 is a hollow roller, and an air inlet pipe 332 is coaxially arranged in the middle of its inner cavity. One end of the air inlet pipe 332 is sealed, and the other end is connected to the blower 60 through the main air pipe 61. An air outlet slot 333 with an opening horizontally facing the roller wall is arranged on the inner cavity of the driven roller 33 near the squeezing roller 35. The air inlet pipe 332 and the air outlet slot 333 are connected through a plurality of ventilation pipes 334. The two groove walls of the air outlet slot 333 are in rolling and sealing contact with the inner roller wall of the driven roller 33 to form a wind chamber. A cavity 335 connected to the inner cavity of the hollow roller is arranged in the demoulding column 331, and a plurality of blowing holes 336 connected to the cavity 335 are arranged on the side wall of the demoulding column 331. When the demoulding column 331 rotates to the side where the horizontal center surface of the driven roller 33 is close to the extrusion roller 35, and the cavity 335 in the demoulding column 331 is just connected to the wind chamber, the air blown in by the blower 60 will pass through the air inlet pipe 332, the ventilation pipe 334, the air outlet slot 333, and the cavity 335 in the demoulding column 331 and then be blown out from the blowing hole 336. At this time, the demoulding column 331 in this position just pushes out the flake feed in the forming hole 341 and is completely located in the forming hole 341. In this way, air can be blown toward the side wall of the forming hole 341 through the blowing hole 336 to blow away the powder attached to the forming hole 341.

[0034] A connecting frame 38 is provided below the driven roller 33 on the mounting frame 31. The connecting frame 38 includes two connecting plates 381 arranged at intervals, and a connecting shaft 382 is provided between the two connecting plates 381. A scraper 39 is provided on the connecting frame 38. A connecting block 391 is provided at one end of the scraper 39 located at the connecting frame 38. The connecting block 391 is rotatably connected to the connecting shaft 382. The scraper 39 bends from the connecting frame 38 to the side of the molding belt 34 near the extrusion roller 35 and the thickness gradually becomes thinner. The thin edge of the scraper 39 is located below the center line of the driven roller 33 and close to the surface of the molding belt 34. In this way, after the molding hole 341 on the molding belt 34 is demolded, when the molding belt 34 moves downward, the scraper 39 can scrape off the powder attached to the surface of the molding belt 34, thereby cleaning the molding belt 34. In order to ensure the cleaning effect of the scraper 39, a torsion spring 383 is also arranged on the connecting shaft 382. The torsion spring 383 provides the scraper 39 with a pressing force toward the molding belt 34, so that the scraper 39 can always be pressed against the belt surface of the molding belt 34.

[0035] The feeding assembly 40 includes a feeding chute 41 disposed at the discharge port of the forming assembly 30, a feeding tube box 42 is disposed at the lower end of the feeding chute 41, the feeding tube box 42 passes through the top plate of the base 10 and extends into the base 10, a conveyor belt 43 is also disposed in the base 10, one end of the conveyor belt 43 is located at the lower end of the feeding tube box 42, and the other end extends to the outside of the base 10. The formed flake feed is transported to the outside of the equipment through the feeding chute 41, the feeding tube box 42, and the conveyor belt 43 for easy collection.

[0036] The dust removal assembly 50 includes a protective cover 51 which is covered on the mounting plate 361 of the molding assembly 30. The protective cover 51 and the mounting plate 361 form a closed box body, which can effectively prevent the powder from being scattered. A dust suction pipe 52 is connected to the protective cover 51, and the powder diffused in the protective cover 51 can be sucked out through the dust suction pipe 52. A dust collector 53 is arranged at one end of the dust suction pipe 52 away from the dust cover, and the powder in the sucked air is filtered and retained by the dust collector 53, and the clean air is discharged. Then, the air outlet of the dust collector 53 is connected to the air inlet of the blower 60 through the exhaust pipe 62, so that the clean air filtered by the dust collector 53 can be used by the blower 60, forming an air cycle.

[0037] The use principle of a flake pet feed extrusion device in this embodiment is as follows: feed raw material powder is mixed and fed into the feeding auger 24 from the feeding pipe 25, and then transported to the silo 21 through the feeding auger 24, and then reaches the three feeding augers 22 through the three feeding augers 26, and then transported to the feeding cavity 37 of the forming assembly 30 through the discharge pipe 27 and the discharge trough 23 under the action of the three feeding augers 22. Feeding is performed through the feeding auger 24 and the feeding auger 22, and the feed raw material powder can be further mixed while feeding. The driving motor 321 drives the active roller 32 to rotate, driving the driven roller 33 and the forming belt 34 to move. The extrusion motor 351 drives the extrusion roller 35 to rotate to squeeze the feed raw material powder in the feeding chamber 37 into the forming hole 341. With the cooperation of the liner 36, the forming belt 34 and the extrusion roller 35, the feed raw material powder is compacted into a sheet. The forming hole 341 filled with feed moves downward with the forming belt 34. When it reaches the area of ​​the driven roller 33, the forming hole 341 begins to cooperate with the demoulding column 331. The demoulding column 331 squeezes the sheet feed in the forming hole 341 outward until it falls into the discharge trough 41 and is transported out through the discharge pipe 26 box and the conveyor belt 43. When the forming hole 341 reaches the height of the center of the driven roller 33, the demoulding column 331 completely enters the forming hole 341, and the feed can be completely removed; under the action of the blower 60, air is blown outward from the blowing hole 336 on the side wall of the demoulding column 331 to clean the residual powder in the forming hole 341.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A pet food extrusion device, comprising a base (10), characterized in that: The base (10) is provided with a loading assembly (20), a molding assembly (30), a unloading assembly (40) and a dust removal assembly (50). The feeding assembly (20) comprises a silo (21) and a feeding auger (22) arranged under the silo (21); The molding assembly (30) comprises a mounting frame (31) arranged on a base (10), and an active roller (32) and a driven roller (33) are rotatably arranged in an upper and lower interval arrangement on the mounting frame (31), and a driving motor (321) is arranged at one end of the active roller (32), and the active roller (32) and the driven roller (33) are connected via a molding belt (34), and a plurality of molding holes (341) are arranged in a matrix on the molding belt (34), and an extrusion roller (35) is arranged on the side of the molding belt (34) away from the mounting plate (361), and an extrusion motor (351) is arranged at one end of the extrusion roller (35), and the The roller surface of the squeezing roller (35) is in contact with the belt surface of the forming belt (34); a lining plate (36) is further provided between the active roller (32) and the driven roller (33); the plate surface of the lining plate (36) is in contact with the belt surface of the forming belt (34) on the side opposite to the squeezing roller (35); a discharge trough (23) is provided at the lower end of the feeding auger (22); the notch of the discharge trough (23) faces the angle region between the squeezing roller (35) and the forming belt (34) and forms a feed cavity (37) of the forming component (30) with the region; a plurality of demoulding columns (331) are evenly arranged on the roller surface of the driven roller (33) corresponding to the forming holes (341); The material discharge assembly (40) comprises a material discharge chute (41) arranged at the discharge port of the molding assembly (30); The dust removal component (50) comprises a protective cover (51) which is arranged on the molding component (30); a dust suction pipe (52) is connected to the protective cover (51); and a dust collector (53) is arranged at one end of the dust suction pipe (52) away from the dust cover.

2. A flaky pet food extrusion device according to claim 1, characterized in that: The driven roller (33) is a hollow roller, and an air inlet pipe (332) is coaxially arranged in the middle of its inner cavity. An air outlet groove (333) with an opening horizontally facing the roller wall is arranged on the side of the inner cavity adjacent to the squeezing roller (35). The two groove wall edges of the air outlet groove (333) are in rolling sealing contact with the inner roller wall of the driven roller (33). The air inlet pipe (332) and the air outlet groove (333) are connected through a plurality of ventilation pipes (334). A cavity (335) connected to the inner cavity of the hollow roller is arranged in the demoulding column (331). A plurality of blowing holes (336) connected to the cavity (335) are arranged on the side wall of the demoulding column (331). One end of the air inlet pipe (332) is sealed, and the other end is connected to the blower (60) through the main air pipe (61).

3. The pet food extrusion device according to claim 1, characterized in that: A connecting frame (38) is provided on the mounting frame (31) below the driven roller (33), and a scraper (39) is provided on the connecting frame (38). The scraper (39) is curved from the connecting frame (38) toward the side of the molding belt (34) close to the squeezing roller (35) and its thickness gradually becomes thinner. The thin edge of the scraper (39) is located below the center line of the driven roller (33) and close to the surface of the molding belt (34).

4. The pet food extrusion device according to claim 3, characterized in that: The connecting frame (38) includes two connecting plates (381) arranged at intervals, a connecting shaft (382) is provided between the two connecting plates (381), and the scraper (39) is provided with a connecting block (391) at one end of the connecting frame (38), the connecting block (391) is rotatably connected to the connecting shaft (382), and a torsion spring (383) is also provided on the connecting shaft (382), and the torsion spring (383) provides a pressing force for the scraper (39) toward the forming belt (34).

5. The pet food extrusion device according to claim 1, characterized in that: The mounting frame (31) is provided with mounting plates (361) on both sides of the molding belt (34), and the mounting plates (361) are fixedly connected to the side edges of the lining plate (36), the upper plate edge of the lining plate (36) is higher than the feed cavity (37) of the molding assembly (30), and the lower plate edge is flush with the top of the driven roller (33), and the lower end of the lining plate (36) is also provided with a comb plate (362), and the lower end of the comb plate (362) extends to the plane where the center line of the driven roller (33) is located, and the plate thickness of the comb plate (362) gradually becomes thinner from top to bottom, and the tooth gap of the comb plate (362) is larger than the diameter of the demoulding column (331), and the tooth width is smaller than the distance between two adjacent demoulding columns (331).

6. The pet food extrusion device according to claim 1, characterized in that: The feeding assembly (20) comprises a vertically arranged feeding auger (24), a feeding pipe (25) is arranged at the upper part of the feeding auger (24), a material bin (21) is arranged at the lower end of the feeding auger (24), a plurality of feeding pipes (26) are arranged at the bottom of the material bin (21), the feeding auger (22) is provided with a plurality of feeding pipes (26) corresponding to the feeding pipes (26) and all of them are arranged obliquely, the lower end of the feeding pipe (26) is connected to the upper part of the feeding auger (22), the lower end of the feeding auger (22) is provided with a discharge pipe (27), and the discharge pipe (27) is connected to the discharge trough (23).

7. The pet food extrusion device according to claim 6, characterized in that: The bottom of the discharge trough (23) is provided with a plurality of sleeves (231) connected with the trough cavity. The sleeves (231) are sleeved on the lower tube wall of the discharge pipe (27). A fixing plate (28) is provided on the upper tube wall of the discharge pipe (27). A compression spring (29) is sleeved on the discharge pipe (27) between the fixing plate (28) and the bottom of the discharge trough (23). One end of the compression spring (29) is in contact with the fixing plate (28) and the other end is in contact with the bottom of the discharge trough (23). A flexible rubber plate (232) is provided on the edge of the wall of the discharge trough (23).

8. The pet food extrusion device according to claim 1, characterized in that: A feeding tube box (42) is provided at the lower end of the feeding chute (41), and the feeding tube box (42) passes through the top plate of the base (10) and extends into the base (10). A conveyor belt (43) is also provided in the base (10), and one end of the conveyor belt (43) is located at the lower end of the feeding tube box (42), and the other end extends to the outside of the base (10).

9. The pet food extrusion device according to claim 2, characterized in that: The air outlet of the dust collector (53) is connected to the air inlet of the blower (60) through an exhaust pipe (62).

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