CN112556316A

CN112556316A - Fodder desiccator

Info

Publication number: CN112556316A
Application number: CN202011408186.6A
Authority: CN
Inventors: 林燕
Original assignee: Hongyang Township People's Government Of Luoyuan County
Current assignee: Hongyang Township People's Government Of Luoyuan County
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-03-26

Abstract

The invention discloses a feed dryer, which relates to the technical field of dryers and comprises a dryer body, wherein an inner cavity is formed in the top of the dryer body, a drying device is arranged in the inner cavity, a screening device is arranged on the side wall of one side of the outer surface of the dryer body, a packing device is arranged at the bottom of the dryer body, an installation plate is fixedly installed on the outer surface of the dryer body, the drying device comprises a servo motor, a servo motor is fixedly installed on the outer surface of the dryer body through a welding column, and the output end of the servo motor is movably connected with a rotating rod which penetrates through the dryer body and is rotatably connected with the inner wall of. According to the invention, through the drying device, the plow harrow roller and the spray head are matched with each other, so that screened feed can be dried while being flatly laid and rolled, and a traditional manual drying mode is simulated, so that the feed is dried more uniformly, and the drying efficiency and quality of the feed are improved.

Description

Fodder desiccator

Technical Field

The invention relates to the technical field of drying machines, in particular to a feed drying machine.

Background

At present, goat feed is difficult to preserve usually in comparatively moist hot season, and the fodder very easily receives the humidity and takes place to deteriorate, and the fodder is stacked and is led to the fact the fermentation together easily for the fodder can't be used, causes a large amount of fodder extravagant, raises for the goat and brings the puzzlement. Therefore, the goat feed needs to be dried to make the goat feed easy to store.

Present goat fodder is dry all goes on at the stoving incasement, and the fodder can not turn in the stoving incasement, leads to dry inhomogeneous, and drying effect is poor, and current drying device is before drying simultaneously, also can't filter the fodder of some mould caking, leads to the fodder of mould caking to dry with intact fodder together, receives the pollution when leading to the fodder to dry, influences the feeding of goat, consequently needs a new goat fodder drying device in the urgent need in order to satisfy current demand.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a feed dryer.

In order to achieve the purpose, the invention adopts the following technical scheme: a feed dryer comprises a machine body, wherein an inner cavity is formed in the top of the machine body, a drying device is arranged inside the inner cavity, a screening device is arranged on the side wall of one side of the outer surface of the machine body, a packing device is arranged at the bottom of the machine body, a mounting plate is fixedly mounted on the outer surface of the machine body, a servo motor is fixedly mounted on the outer surface of the machine body through a welding column, a rotating rod penetrating through the machine body and rotatably connected with the inner wall of the inner cavity is movably connected to the output end of the servo motor, two wire rollers arranged in opposite positions are respectively fixedly mounted on two sides of one end of the rotating rod positioned inside the inner cavity, traction wires are wound on the outer surfaces of the two wire rollers, a sliding groove is formed in the outer surface of the machine body, a partition plate arranged inside the sliding groove is fixedly mounted on two sides of the outer, the machine body is characterized in that two sliders are slidably connected to the inner wall of the sliding groove, two sliders are arranged on two sides of the machine body and are respectively arranged on the upper side and the lower side of a partition plate inside the sliding groove, two sliders are arranged above the partition plate, a seal box is fixedly arranged between the sliders, two sliders are arranged below the partition plate, a plough and harrow roller is fixedly arranged between the sliders, a fan is fixedly arranged at the edge of the inner cavity of the machine body, and two sliders are arranged on one side of the machine body and are fixedly connected with elastic springs between the sliders and the mounting.

Preferably, one of the line rollers is fixedly connected with the outer surface of the seal box through a traction line, and the other line roller is fixedly connected with the outer surface of the plow and harrow roller through the traction line.

Preferably, the air inlet and the air outlet of the fan are respectively communicated with an air inlet pipe and an air outlet pipe, one end, far away from the fan, of the air outlet pipe is communicated with the inside of the seal box, and the bottom of the seal box is fixedly connected with a plurality of spray heads.

Preferably, the feed inlet has been seted up to the surface lateral wall of organism, sieving mechanism includes the sieve, the lateral wall that the organism surface is close to the feed inlet is connected with the sieve through hinge rotation, the inside fixed position that is close to the feed inlet of sieve has the guide plate, the surface of organism is located the equal fixed mounting of sieve below both sides lateral wall and has the slide rail, the inner wall sliding connection of slide rail has the case that gathers materials, is located mounting panel one side the surface lateral wall of slide rail rotates and is connected with and changes the axle, the surface cover of changeing the axle is equipped with ratchet, ratchet's the back articulates there is the traction lever, the mounting panel is located the opposite one side lateral wall fixed mounting of elastic spring and has the sleeve pipe, sheathed tube inner wall sliding connection has the.

Preferably, one end of the traction rod, which is far away from the ratchet wheel, is hinged with the side wall of the outer surface of the sieve plate, a leak hole is formed in the position, above the material collecting box, of the inner wall of the sieve plate, and two ends of the return spring are fixedly connected with the outer surface of the sleeve and the outer surface of the pawl respectively.

Preferably, packing apparatus includes the discharge door, the inner wall that the bottom of organism is located the inner chamber is connected with the discharge door through hinge rotation, the surface both sides of discharge door are provided with the couple No. one, one side lateral wall that the bottom of organism is close to the discharge door rotates and is connected with the limiting plate, one side lateral wall sliding connection that the bottom of organism is close to the limiting plate has the slide, the surface of slide articulates there are two branches, the bottom of organism is located the both sides of two branches and has all seted up the bar groove, the inner wall sliding connection in bar groove has the square, the surface fixed mounting of square has the couple No. two, fixed mounting has extension spring between the one side that square and bar groove are relative.

Preferably, the outer surface of the sliding plate and the outer surface of the machine body are both provided with limiting holes, the inner walls of the limiting holes are inserted with bolts, and one ends of the support rods, which are far away from the sliding plate, are hinged with the outer surfaces of the square blocks.

Compared with the prior art, the invention has the advantages and positive effects that,

1. in the invention, through arranging the drying device, when the feed enters the inner cavity from the discharge port after being screened by the screening device, hot air and the air inlet pipe are communicated, the servo motor and the fan are started, the servo motor drives the rotating rod to rotate, the fan discharges the hot air from the air inlet pipe into the air outlet pipe, the air is poured into the inner part of the sealed box from the air outlet pipe, then the hot air is sprayed out from the spray head, the rotating rod drives the wire rollers with two opposite ends to rotate, one of the wire rollers recovers the traction wire, the traction wire pulls the harrowing rollers, one of the elastic springs is extruded by the sliding block sliding along the inner wall of the sliding chute, the harrowing rollers are driven to move along the inner part of the inner cavity, the harrowing rollers drive the feed to be tiled in the inner cavity, the other wire roller releases the traction wire, the resilience force of the other elastic spring moves the sealed box, and the, the fodder after spreading is dried through the spray head on one side, when the harrow roller and the seal box move to the matched positions, the servo motor rotates reversely, one of the wire rollers loosens the traction wire, the slide block is quickly reset through the resilience force of one of the elastic springs, when the slide block resets, the harrow roller is driven to move back, the fodder is rolled again, so that the fodder can be uniformly spread, the fodder can be contacted with hot air to a greater extent, meanwhile, the other wire roller and the elastic spring are opposite to each other, the seal box moves again, the spray head is driven to dry the fodder after the harrow roller rolls, the further drying effect is achieved, the harrow roller and the spray head are matched with each other through the drying device, the screened fodder can be dried while spreading and rolling, and the traditional manual drying mode is simulated, the feed drying device has the advantages that the feed drying is more uniform, and the feed drying efficiency and quality are improved.

2. According to the invention, through arranging the screening device, when the feed needs to be dried, the pawl is pressed to slide along the inner wall of the sleeve, the return spring is extruded, the external pin rod is utilized to limit the movement of the pawl, the pawl is separated from the ratchet wheel, the rotating handle shaft is rotated to drive the ratchet wheel to rotate, the ratchet wheel drives the traction rod to rotate, the traction rod drives the sieve plate to vibrate up and down, the feed is poured into the sieve plate, through the arrangement of the leak hole, the vibrating sieve plate effectively separates qualified feed in the feed, such as the feed with caked mold due to vibration force, the qualified feed falls into the collecting groove, the feed with caked mold is better displayed outside the discharge hole, the feed with caked mold is taken out, the feed in the collecting groove is poured into the sieve plate, the feed is screened again, and the qualified feed enters the feed inlet from the guide plate, then drop to the inside of inner chamber, so relapse, the fodder of mould caking in the separation fodder that can be quick is avoided the fodder of some mould caking to mix with intact fodder and is dried together, receives the pollution when leading to the fodder to dry, influences the feeding of goat.

3. According to the invention, by arranging the packing device, when the feed is dried, the sliding plate is slid according to the size of the packing bag, the sliding plate drives the supporting rod to move, the square block is extruded, the square block slides along the inner wall of the strip-shaped groove, the extension spring is extruded, the square block drives the second hook to move to a matched position, the bolt is inserted into the limiting hole to limit the sliding plate, the packing bag is connected to the first hook and the second hook in a hanging manner, the limiting plate is rotated, the discharge door is inclined through the external ejector rod, the inclined angle of the discharge door is controlled according to the external ejector rods with different sizes, the feed in the inner cavity slides to the inside of the packing bag, when the packing is finished, the sliding plate can be quickly reset through the elasticity of the extension spring only by pulling out the bolt, and the next packing bag with different sizes is convenient, adjust, and set up packing apparatus, effectually avoided the handheld bag of packing of artifical to pack, reduced workman's intensity of labour and packing time, reduced the labour, improved the practicality of this desiccator.

Drawings

FIG. 1 is a schematic perspective view of a feed dryer according to the present invention;

FIG. 2 is a schematic top view of a feed dryer according to the present invention;

FIG. 3 is a schematic bottom view of a feed dryer according to the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 2 according to the present invention.

Illustration of the drawings:

1. a body; 11. an inner cavity; 12. a partition plate; 13. a chute; 14. a feed inlet; 2. a drying device; 21. a motor; 22. a rotating rod; 23. a wire roller; 24. a pull wire; 25. a slider; 26. a sealing box; 261. a spray head; 27. a plowing and raking roller; 28. a fan; 281. an air inlet pipe; 282. an air outlet pipe; 29. an elastic spring; 3. a screening device; 31. a sieve plate; 311. a leak hole; 32. a baffle; 33. a slide rail; 34. a material collecting box; 35. rotating the handle shaft; 36. a ratchet gear; 37. a draw bar; 38. a sleeve; 39. a pawl; 310. a return spring; 4. a packaging device; 41. a discharge door; 42. a first hook; 43. a limiting plate; 44. a slide plate; 45. a strut; 46. a limiting hole; 47. a bolt; 48. a strip-shaped groove; 49. a square block; 410. a second hook; 411. an extension spring; 5. and (7) mounting the plate.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 4, the present invention provides a feed dryer, which includes a machine body 1, an inner cavity 11 is formed at the top of the machine body 1, a drying device 2 is disposed inside the inner cavity 11, a screening device 3 is disposed on a side wall of one outer surface of the machine body 1, a packing device 4 is disposed at the bottom of the machine body 1, and a mounting plate 5 is fixedly mounted on the outer surface of the machine body 1.

The specific arrangement and function of the drying device 2, the screening device 3 and the packing device 4 will be described in detail.

As shown in fig. 1 and 2, the drying device 2 includes a servo motor 21, the outer surface of the machine body 1 is fixedly provided with the servo motor 21 through a welding column, the output end of the servo motor 21 is movably connected with a rotating rod 22 which penetrates through the machine body 1 and is rotatably connected with the inner wall of the inner cavity 11, two sides of one end of the rotating rod 22, which is positioned inside the inner cavity 11, are respectively and fixedly provided with wire rollers 23 with opposite positions, the outer surfaces of the two wire rollers 23 are respectively wound with a traction wire 24, the outer surface of the machine body 1 is provided with a sliding groove 13, two sides of the outer surface of the machine body 1 are respectively and fixedly provided with a partition plate 12 which is arranged inside the sliding groove 13 through a connecting column, the sliding groove 13 is divided into annular grooves by the partition plate 12, the inner walls of the sliding grooves 13, which are respectively and slidably connected with two sliding blocks 25, which are positioned, a plow and rake roller 27 is fixedly installed between two sliders 25 positioned below the partition plate 12, one of the line rollers 23 is fixedly connected with the outer surface of the seal box 26 through a traction line 24, the other line roller 23 is fixedly connected with the outer surface of the plow and rake roller 27 through a traction line 24, a fan 28 is fixedly installed at the edge of the inner cavity 11 on the outer surface of the machine body 1, an elastic spring 29 is fixedly connected between the two sliders 25 positioned on one side of the machine body 1 and the mounting plate 5, an air inlet and an air outlet of the fan 28 are respectively communicated with an air inlet pipe 281 and an air outlet pipe 282, one end of the air outlet pipe 282 far away from the fan 28 is communicated with the inside of the seal box 26, and the bottom of the seal box 26 is.

The whole drying device 2 achieves the effect that by arranging the drying device 2, when the feed is screened by the screening device 3 and enters the inner cavity 11 from the discharge hole, hot air and the air inlet pipe 281 are connected, the servo motor 21 and the fan 28 are started, the servo motor 21 drives the rotary rod 22 to rotate, the fan 28 discharges the hot air from the air inlet pipe 281 into the air outlet pipe 282, the hot air is poured into the sealing box 26 from the air outlet pipe 282 and is sprayed out from the spray head 261, at the moment, the rotary rod 22 drives the wire rollers 23 with two opposite ends to rotate, one wire roller 23 recovers the pull wire 24, the pull wire 24 pulls the plow and rake roller 27, the slide block 25 slides along the inner wall of the sliding groove 13 to extrude one elastic spring 29 and drive the plow and rake roller 27 to move along the inner cavity 11, so that the plow and rake roller 27 drives the feed to be flatly laid in the inner cavity 11, at the moment, the other wire roller 23 releases the pull wire 24, and the other elastic spring 29 resilience force, so that the seal box 26 moves, and the spread feed is dried through the spray head 261, when the harrow roller 27 and the seal box 26 move to the matched positions, the servo motor 21 rotates reversely, one wire roller 23 loosens the traction wire 24, the slide block 25 is reset quickly through the resilience force of one elastic spring 29, and when the slide block 25 is reset, the harrow roller 27 is driven to move back, and the feed is rolled again, so that the feed can be spread evenly, one can contact hot air to a greater extent, and the other wire roller 23 and the elastic spring 29 are opposite to each other, so that the seal box 26 moves again, the spray head 261 is driven to dry the rolled feed, and the effect of further drying is achieved, by arranging the drying device 2, make the mutually supporting of plough harrow roller 27 and shower nozzle 261 for the fodder after the screening can be tiled simultaneously and roll, dries on one side, imitates traditional artificial stoving mode, makes the stoving of fodder more even, has improved the drying efficiency and the quality of fodder.

As shown in fig. 2 and 4, a feed inlet 14 is formed in the side wall of the outer surface of a machine body 1, a screening device 3 includes a screen plate 31, the side wall of the outer surface of the machine body 1, which is close to the feed inlet 14, is rotatably connected with the screen plate 31 through a hinge, a guide plate 32 is fixedly installed in the screen plate 31, the side walls of the two sides, which are located below the screen plate 31, of the outer surface of the machine body 1 are fixedly installed with slide rails 33, the inner wall of each slide rail 33 is slidably connected with a collection box 34, the side wall of the outer surface of the slide rail 33, which is located on one side of a mounting plate 5, is rotatably connected with a rotating handle shaft 35, the outer surface of the rotating handle shaft 35 is sleeved with a ratchet gear 36, the back surface of the ratchet gear 36 is hinged with a traction rod 37, the side wall, which is located on the opposite side of, the inner wall of the sieve plate 31 is provided with a leak hole 311 above the material collecting box 34, and two ends of the return spring 310 are respectively fixedly connected with the outer surface of the sleeve 38 and the outer surface of the pawl 39.

The whole screening device 3 achieves the effects that through the arrangement of the screening device 3, when the feed needs to be dried, the pawl 39 is pressed to slide along the inner wall of the sleeve 38, the return spring 310 is extruded, the motion of the pawl 39 is limited by an external pin rod, the pawl 39 is separated from the ratchet wheel 36, the rotating handle shaft 35 is rotated, the rotating handle shaft 35 drives the ratchet wheel 36 to rotate, the ratchet wheel 36 drives the draw bar 37 to rotate, the draw bar 37 drives the sieve plate 31 to vibrate up and down, the feed is poured into the sieve plate 31, through the arrangement of the leak holes 311, the vibrating sieve plate 31 effectively separates qualified feed in the feed, for example, the vibrating force effectively separates the feed with caked mold, the qualified feed falls into the collecting groove, the feed with caked mold is better displayed outside the discharge hole, and then the feed with caked mold is taken out, sieve 31 is poured into to the fodder that will gather the silo again, screens once more, and qualified fodder gets into feed inlet 14 from guide plate 32, then drops to the inside of inner chamber 11, so relapse, and the fodder of mould caking in the separation fodder that can be quick is avoided the fodder of some mould caking to mix with intact fodder and is dried together, receives the pollution when leading to the fodder to dry, influences the feeding of goat.

As shown in fig. 3, packing apparatus 4 includes discharge door 41, the inner wall that the bottom of organism 1 is located inner chamber 11 is connected with discharge door 41 through the hinge rotation, discharge door 41's surface both sides are provided with couple 42 No. one, one side lateral wall that organism 1's bottom is close to discharge door 41 rotates and is connected with limiting plate 43, one side lateral wall sliding connection that organism 1's bottom is close to limiting plate 43 has slide 44, slide 44's surface articulates there are two branches 45, bar groove 48 has all been seted up to organism 1's bottom is located the both sides of two branches 45, bar groove 48's inner wall sliding connection has square 49, spacing hole 46 has all been seted up to slide 44's surface and organism 1's surface, the inner wall of spacing hole 46 is inserted and is equipped with bolt 47, slide 44 was kept away from to branch 45 one end and square 49's surface are articulated, square 49's surface fixed mounting has couple 410 No. two, fixed.

The whole packing device 4 achieves the effects that by arranging the packing device 4, when the feed is dried, according to the size of a packing bag, the sliding plate 44 is slid to enable the sliding plate 44 to drive the supporting rod 45 to move and extrude the square block 49, the square block 49 slides along the inner wall of the strip-shaped groove 48 and extrudes the extension spring 411, the square block 49 drives the second hook 410 to move to a matched position, at the moment, the bolt 47 is inserted into the limiting hole 46 to limit the sliding plate 44, the packing bag is hung on the first hook 42 and the second hook 410, at the moment, the limiting plate 43 is rotated, the discharge door 41 is inclined through the external ejector rod, the inclined angle of the discharge door 41 is controlled according to the ejector rods with different sizes, the feed in the inner cavity 11 slides to the inner part of the packing bag, when the packing is finished, only the bolt 47 needs to be pulled out, through extension spring 411's elasticity, can be quick make slide 44 reset, convenient next time according to different baling bag sizes, adjust, and set up packing apparatus 4, effectually avoided artifical handheld baling bag to pack, reduced workman's intensity of labour and packing time, reduced the labour, improved the practicality of this desiccator.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A feed dryer comprising a machine body (1), characterized in that: the inner cavity is formed in the top of the machine body (1), the drying device (2) is arranged inside the inner cavity (11), the screening device is arranged on the side wall of one side of the outer surface of the machine body (1), the packing device (4) is arranged at the bottom of the machine body (1), the mounting plate is fixedly mounted on the outer surface of the machine body (1), the drying device (2) comprises a servo motor (21), the servo motor (21) is fixedly mounted on the outer surface of the machine body (1) through a welding column, a rotating rod (22) penetrating through the machine body (1) and rotatably connected with the inner wall of the inner cavity (11) is movably connected to the output end of the servo motor (21), wire rollers (23) which are arranged in opposite positions are fixedly mounted on two sides of one end of the rotating rod (22) located inside the inner cavity (11) respectively, and traction wires (24) are wound on the, the outer surface of the machine body is provided with a chute (13), both sides of the outer surface of the machine body (1) are fixedly provided with a clapboard (12) arranged inside the chute through a connecting column, the separation plate (12) separates the sliding chute (13) into annular grooves, the inner walls of the sliding chutes (13) positioned at two sides of the machine body (1) are respectively connected with two sliding blocks (25) in a sliding manner, the two sliding blocks (25) positioned at two sides of the machine body (1) are respectively positioned at the upper side and the lower side of the separation plate (12) in the sliding chute (13), a seal box (26) is fixedly arranged between the two sliding blocks positioned above the separation plate (12), and a plowing and harrowing roller (27) is fixedly arranged between the two sliding blocks (25) positioned below the separation plate (12), the edge that the surface of organism (1) is located inner chamber (11) fixedly mounted has fan (28), is located two of organism (1) one side equal fixedly connected with elasticity spring (29) between slider (25) and mounting panel (5).

2. A feed dryer according to claim 1, wherein: one of the wire rollers (23) is fixedly connected with the outer surface of the seal box (26) through a traction wire (24), and the other wire roller (23) is fixedly connected with the outer surface of the plough and harrow roller (27) through the traction wire (24).

3. A feed dryer according to claim 1, wherein: the air inlet and the air outlet of fan (28) communicate respectively has air-supply line (281) and air-out pipe (282), the inside intercommunication of the one end that fan (28) were kept away from in air-out pipe (282) and seal box (26), the bottom fixedly connected with a plurality of shower nozzle (261) of seal box (26).

4. A feed dryer according to claim 1, wherein: the feed inlet (14) has been seted up to the surface lateral wall of organism (1), sieving mechanism (3) includes sieve (31), the lateral wall that the surface of organism (1) is close to the feed inlet is connected with sieve (31) through hinge rotation, the inside fixed mounting that is close to feed inlet (14) of sieve (31) has guide plate (32), the surface of organism (1) is located the equal fixed mounting of sieve (31) below both sides lateral wall and has the slide rail, the inner wall sliding connection of slide rail (33) has a case of gathering material (34), be located mounting panel (5) one side the surface lateral wall of slide rail rotates and is connected with and changes axle (35), the surface cover of changeing axle (35) is equipped with ratchet (36), the back of ratchet (36) articulates there is traction lever (37), mounting panel (5) are located the opposite side wall fixed mounting of elastic spring (29) and have sleeve pipe (38), the inner wall of the sleeve (38) is connected with a pawl (39) in a sliding mode, and a return spring (310) is sleeved on the outer surface of the pawl (39).

5. A feed dryer according to claim 4, wherein: one end of the traction rod (37) far away from the ratchet wheel is hinged with the side wall of the outer surface of the sieve plate (31), a leak hole (311) is formed in the inner wall of the sieve plate (31) and located above the material collecting box (34), and two ends of the return spring (310) are fixedly connected with the outer surface of the sleeve (38) and the outer surface of the pawl (39) respectively.

6. A feed dryer according to claim 1, wherein: the packing device (4) comprises a discharge door, the bottom of the machine body (1) is positioned on the inner wall of the inner cavity (11) and is rotationally connected with the discharge door (41) through a hinge, a first hook (42) is arranged on two sides of the outer surface of the discharge door, a limit plate (43) is rotatably connected to the side wall of one side of the bottom of the machine body (1) close to the discharge door (41), the side wall of one side of the bottom of the machine body (1) close to the limit plate (43) is connected with a sliding plate in a sliding way, the outer surface of the sliding plate (44) is hinged with two support rods (45), the bottom of the machine body (1) is provided with strip-shaped grooves (48) at two sides of the two support rods, the inner wall of the strip-shaped groove (48) is connected with a square block (49) in a sliding way, the outer surface of the square block is fixedly provided with a second hook (410), and an extension spring (411) is fixedly arranged between the surfaces of the square block (49) opposite to the strip-shaped groove (48).

7. A feed dryer according to claim 6, wherein: the outer surface of the sliding plate (44) and the outer surface of the machine body are both provided with a limiting hole (46), the inner wall of the limiting hole (46) is inserted with a bolt (47), and one end of the support rod, which is far away from the sliding plate (44), is hinged with the outer surface of the square block (49).