Slice airing machine with anti-sticking structure for sea bass fillet production

The fish slice drying machine addresses the issue of adhesion to drying surfaces by using adjustable and movable components to separate and flip fish slices, ensuring efficient drying and preservation.

CN120313318AInactive Publication Date: 2025-07-15珠海市粤越强农业科技有限公司
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Patent Information

Application Number
CN202510809525.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2025-07-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Sea bass fillets are prone to adhere to the screen plate during drying, making them difficult to separate, resulting in the crushing of the fillet and affecting the drying efficiency and quality.

Method used

A drying machine with an anti-adhesive structure is designed, including a height-adjustable drying plate, a rotatable clamping assembly and a thrust assembly. The moving assembly drives the clamping assembly to move, clamp the fish fillet and flip it to avoid adhesion, and use the thrust assembly to provide space for the flip to flip.

Benefits of technology

It effectively avoids the adhesion between the fillet and the drying board, improves the drying efficiency and the separation of the fillet, ensures the smooth turnover of the fillet, and maintains the integrity and quality of the fillet.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of airing equipment, in particular to a slice airing machine with an anti-sticking structure for sea bass slice production, which comprises a base and an airing assembly arranged on the base, the airing assembly comprises a plurality of groups of airing plates, the airing plates are movably mounted above the base, and the height of the airing plates relative to the base is adjustable. A moving assembly is arranged on one side of the base, a rotatable clamping assembly is arranged at the moving end of the moving assembly, a clamping part of the clamping assembly is arranged to be in a U shape, and the two sides of the opening end of the clamping part are close to each other or away from each other. According to the fish slice airing device, a user lays cut fish slices on the airing plate, a first electric push rod is driven to stretch out and draw back repeatedly, a moving plate and a top plate can be driven to move in a reciprocating mode in the vertical direction, the top plate can jack up the fish slices repeatedly, and the fish slices are prevented from being adhered to the airing plate; the fish slices can be turned over, so that adhesion of the fish slices is further prevented.
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Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and specifically to a drying machine for sea bass fillet production with an anti-adhesion structure. Background Art

[0002] The main function of drying sea bass fillets is to remove fishy smell, make the fillets more tender, and retain moisture to prevent excessive dampness. Through drying, the fillets can be dried into a solid state, which is convenient for storage and long-term preservation. This method can also reduce water evaporation and maintain the taste and nutritional components of the fillets. Currently, sea bass fillets are usually laid on a sieve plate and then naturally dried by sunlight. However, in the early stage of drying, the water content of the sea bass fillets is relatively high. After the sea bass fillets are dried, they are easily adhered to the sieve plate, making it difficult to separate the sea bass fillets from the sieve plate, and even causing the sea bass fillets to be crushed. For this reason, a drying machine for sea bass fillet production with an anti-adhesion structure is proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide a drying machine for sea bass fillet production with an anti-adhesion structure to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A drying machine for sea bass fillet production with an anti-adhesion structure, including a base and a drying component arranged on the base. The drying component includes multiple groups of drying plates. The drying plates are movably installed above the base, and the height of the drying plates relative to the base is adjustable. A moving component is arranged on one side of the base, and a rotatable clamping component is arranged at the moving end of the moving component. The clamping part of the clamping component is set as a U shape, and the two sides of the opening end of the clamping part approach or move away from each other.

[0005] Taking the downward movement direction of the drying plate as the positive direction, when the drying plate is at the starting end of movement and the opening side of the clamping part is distributed vertically, the bottom of the opening end of the clamping part is located on the upper surface of the drying plate.

[0006] Preferably, the drying component further includes ear plates fixedly installed on both sides of the drying plate. Vertical rods are fixedly connected to the bottoms of the ear plates. Sleeve barrels adapted to the vertical rods are fixedly connected to the base. The lower ends of the vertical rods are slidably inserted into the corresponding sleeve barrels, and support springs are sleeved on the outer surfaces of the vertical rods. Under the action of an external force, the vertical rods and the drying plates can move downward along the sleeve barrels.

[0007] Preferably, uniformly distributed grooves are formed on the surfaces of the drying plates. Moving plates are arranged below the drying plates. First electric push rods are fixedly connected to both sides of the upper surfaces of the moving plates. The upper ends of the first electric push rods are fixedly connected to the drying plates. Uniformly distributed top plates are fixedly connected to the upper surfaces of the moving plates. The top plates correspond to the grooves one by one, and the upper ends of the top plates are slidably installed inside the corresponding grooves.

[0008] Preferably, the moving component includes a moving motor, a first lead screw, and a first ball seat. The first lead screw is rotatably installed on one side of the base. The moving motor is fixedly installed on the outer surface of the base. The output shaft of the moving motor is fixedly connected to one end of the first lead screw. The first ball seat is sleeved on the outer surface of the first lead screw. The clamping component is arranged on the first ball seat.

[0009] Preferably, the clamping component includes a connecting block fixedly installed on the lower surface of the first ball seat. A rotating motor is fixedly installed on the outer surface of the connecting block. The output shaft of the rotating motor penetrates through the connecting block and is fixedly connected to a sliding seat. Second electric push rods are fixedly connected to both sides of the sliding seat. The telescopic ends of the second electric push rods are fixedly connected to sliders. The two groups of sliders are slidably installed inside the sliding seat. Clamping plates are fixedly connected to the surfaces of the sliders. The clamping plates are located above the drying plate.

[0010] Preferably, when the drying plate is located on the upper surface of the drying plate, both sides of the upper surface of the drying plate are inclined.

[0011] Preferably, a pushing component is arranged on the upper surface of the first ball seat. The pushing component can drive the fish slices to be pushed between the two clamping plates and can push the drying plate downward.

[0012] Preferably, the pushing component includes a bidirectional moving member arranged on the upper surface of the first ball seat. Installation plates are arranged at both mobile ends of the bidirectional moving member. Third electric push rods are fixedly connected to both sides of the lower surface of each installation plate. The telescopic ends of the third electric push rods are fixedly connected to lifting plates.

[0013] Preferably, the bidirectional moving member includes a moving seat fixedly installed on the upper surface of the first ball seat. A second lead screw is rotatably connected inside the moving seat. A driving motor is fixedly installed on the outer surface of the moving seat. The output shaft of the driving motor is fixedly connected to one end of the second lead screw. The thread directions at both ends of the second lead screw are opposite. Second ball seats are sleeved at both ends of the first ball seat. The two groups of second ball seats are respectively fixedly connected to the two installation plates.

[0014] Preferably, a plurality of guide rods are inserted into the surfaces of the lifting plates. Push plates are fixedly connected to the guide rods. The upper surface of the push plate is concave. The two ends of the guide rod are respectively fixedly connected to the two ends of the push plate. A connecting spring is sleeved on the outer surface of the guide rod. One end of the connecting spring is fixedly connected to the push plate. The other end of the connecting spring is fixedly connected to the lifting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In the present invention, the user lays the cut fish slices on the drying plate. By driving the first electric push rod to repeatedly stretch and retract, the moving plate and the top plate can be driven to reciprocate vertically. Thus, the top plate can repeatedly lift the fish slices to prevent the fish slices from sticking to the drying plate.

[0017] 2. In the present invention, by setting the moving component, the clamping component and the pushing component to cooperate with each other, the moving component can drive the clamping component to move along the surface of the drying plate. The clamping component can pick up the fish slices on the drying plate. In addition, the pushing component can drive the fish slices to be pushed between the two clamping plates and can push the drying plate downwards to provide space for flipping the fish slices. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the overall structure of the clamping component of the present invention;

[0020] Figure 3 is a schematic diagram of the overall structure of the pushing component of the present invention;

[0021] Figure 4 is a schematic diagram of a partial structure of the pushing component of the present invention;

[0022] Figure 5 is a schematic diagram of a partial structure of the drying component of the present invention;

[0023] Figure 6 For the present invention Figure 1 is an enlarged view of part A in;

[0024] Figure 7 For the present invention Figure 2 is an enlarged view of part B in.

[0025] In the drawings, the list of components represented by each reference numeral is as follows: 1. Base; 2. Drying component; 21. Drying plate; 22. Ear plate; 23. Vertical rod; 24. Sleeve; 25. Support spring; 26. Groove body; 27. Moving plate; 28. First electric push rod; 29. Top plate; 3. Moving component; 31. Moving motor; 32. First lead screw; 33. First ball seat; 4. Clamping component; 41. Clamping plate; 42. Connecting block; 43. Rotating motor; 44. Slide seat; 45. Second electric push rod; 46. Slide block; 5. Pushing component; 51. Mounting plate; 52. Moving seat; 53. Driving motor; 54. Second lead screw; 55. Second ball seat; 56. Third electric push rod; 57. Lifting plate; 58. Pushing plate; 59. Guide rod; 510. Connecting spring. DETAILED DESCRIPTION OF THE INVENTION

[0026] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 7 , in the figure, a drying machine for producing sea bass slices with an anti-sticking structure includes a base 1 and a drying component 2 arranged on the base 1. The drying component 2 includes multiple drying plates 21. The drying plates 21 are movably installed above the base 1, and the height of the drying plates 21 relative to the base 1 is adjustable. A moving component 3 is arranged on one side of the base 1, and a rotatable clamping component 4 is arranged at the moving end of the moving component 3. The clamping part of the clamping component 4 is set in a U shape, and both sides of the open end of the clamping part approach or move away from each other;

[0028] The downward movement direction of the drying plate 21 is the positive direction. When the drying plate 21 is at the moving starting end and the open side of the clamping part is distributed vertically, the bottom of the open end of the clamping part is located on the upper surface of the drying plate 21.

[0029] In this embodiment, the user lays the cut sea bass slices on the drying plate 21. When laying, it is best to place the sea bass slices in columns on the upper surface of the drying plate 21. By setting the cooperation of the moving component 3 and the clamping component 4, the moving component 3 can drive the clamping component 4 to move, pick up the sea bass slices on the drying plate 21 and turn over the sea bass slices, so as to avoid the sea bass slices adhering to the surface of the drying plate 21.

[0030] Furthermore, the drying component 2 further includes ear plates 22 fixedly installed on both sides of the drying plate 21. Vertical rods 23 are fixedly connected to the bottoms of the ear plates 22. Sleeve tubes 24 adapted to the vertical rods 23 are fixedly connected to the base 1. The lower ends of the vertical rods 23 are slidably inserted into the corresponding sleeve tubes 24. Support springs 25 are sleeved on the outer surfaces of the vertical rods 23. Under the action of an external force, the vertical rods 23 and the drying plates 21 can move downward along the sleeve tubes 24.

[0031] In this embodiment, when the drying plate 21 is subjected to a downward force, the drying plate 21, the ear plates 22 and the vertical rods 23 all move downward. During this process, the support springs 25 are compressed. When the force applied to the drying plate 21 disappears, the compressed support springs 25 extend, driving the vertical rods 23, the ear plates 22 and the drying plates 21 to move upward and reset.

[0032] Furthermore, the surface of the drying plate 21 is provided with uniformly distributed grooves 26. A moving plate 27 is arranged below each drying plate 21. On both sides of the upper surface of the moving plate 27, a first electric push rod 28 is fixedly connected. The upper ends of the first electric push rods 28 are fixedly connected to the drying plate 21. On the upper surface of the moving plate 27, uniformly distributed top plates 29 are fixedly connected. The top plates 29 correspond to the grooves 26 one by one, and the upper ends of the top plates 29 are slidably installed inside the corresponding grooves 26.

[0033] In this embodiment, in the initial stage of drying the sea bass slices, the water content is relatively high. The first electric push rod 28 can be driven to repeatedly extend and retract, driving the moving plate 27 and the top plate 29 to move reciprocally in the vertical direction. The top plate 29 can repeatedly lift the sea bass slices.

[0034] Furthermore, the moving assembly 3 includes a moving motor 31, a first lead screw 32, and a first ball seat 33. The first lead screw 32 is rotatably installed on one side of the base 1. The moving motor 31 is fixedly installed on the outer surface of the base 1. The output shaft of the moving motor 31 is fixedly connected to one end of the first lead screw 32. The first ball seat 33 is sleeved on the outer surface of the first lead screw 32. The clamping assembly 4 is arranged on the first ball seat 33.

[0035] Furthermore, the clamping assembly 4 includes a connecting block 42 fixedly installed on the lower surface of the first ball seat 33. A rotating motor 43 is fixedly installed on the outer surface of the connecting block 42. The output shaft of the rotating motor 43 penetrates through the connecting block 42 and is fixedly connected to a sliding seat 44. On both sides of the sliding seat 44, a second electric push rod 45 is fixedly connected. The telescopic ends of the second electric push rods 45 are fixedly connected to sliders 46. The two groups of sliders 46 are slidably installed inside the sliding seat 44. On the surface of the sliders 46, clamping plates 41 are fixedly connected. The clamping plates 41 are located above the drying plate 21.

[0036] Furthermore, when the drying plate 21 is located on the upper surface of the drying plate 21, both sides of the upper surface of the drying plate 21 are inclined.

[0037] Furthermore, a pushing assembly 5 is arranged on the upper surface of the first ball seat 33. The pushing assembly 5 can drive the fish slices to be pushed between the two groups of clamping plates 41 and can also push the drying plate 21 downward.

[0038] In this embodiment, when it is necessary to clamp the fish fillet, first, the rotating motor 43 is used to drive the sliding seat 44 and the clamping plate 41 to rotate, so that the two groups of clamping plates 41 are distributed vertically. Then, the moving component 3 is used to drive the clamping component 4 to move along the surface of the drying plate 21. During the moving process, the clamping plate 41 located below shovels up the fish fillet, so that the fish fillet is located between the two groups of clamping plates 41. Then, the second electric push rod 45 is driven to extend, and the two groups of clamping plates 41 approach each other to clamp the fish fillet. Next, the pushing component 5 is used to drive the drying plate 21 to move downward to provide space for the rotation of the clamping plate 41. Finally, the rotating motor 43 is used to drive the sliding seat 44, the clamping plate 41 and the fish fillet to flip. After the fish fillet is flipped, the pushing component 5 is used to move the drying plate 21 upward to reset, and the second electric push rod 45 is driven to contract, so that the clamping plate 41 no longer clamps the fish fillet. The moving component 3 drives the clamping component 4 to move, so that the clamping component 4 is separated from the fish fillet, and the turning of the fish fillet can be completed.

[0039] Further, the pushing component 5 includes a bidirectional moving part arranged on the upper surface of the first ball seat 33. Installation plates 51 are arranged at both mobile ends of the bidirectional moving part. Third electric push rods 56 are fixedly connected to both sides of the lower surface of the installation plate 51, and lifting plates 57 are fixedly connected to the telescopic ends of the third electric push rods 56.

[0040] Further, the bidirectional moving part includes a moving seat 52 fixedly installed on the upper surface of the first ball seat 33. A second lead screw 54 is rotatably connected inside the moving seat 52. A driving motor 53 is fixedly installed on the outer surface of the moving seat 52, and the output shaft of the driving motor 53 is fixedly connected to one end of the second lead screw 54. The thread directions at both ends of the second lead screw 54 are opposite. Second ball seats 55 are sleeved at both ends of the first ball seat 33, and the two groups of second ball seats 55 are respectively fixedly connected to the two groups of installation plates 51.

[0041] In this embodiment, the moving component 3 is used to drive the two groups of lifting plates 57 to move to both sides of a row of fish fillets, and the third electric push rod 56 is driven to extend, so that the lifting plates 57 move to the upper surface of the drying plate 21. Then, the driving motor 53 is used to drive the second lead screw 54 to rotate, so that the two groups of lifting plates 57 approach each other. The two groups of lifting plates 57 can push the fish fillet toward the clamping plate 41. Moreover, the two groups of lifting plates 57 are symmetrically arranged based on the clamping plate 41. Pushing the fish fillet by the two groups of lifting plates 57 can make the clamping plate 41 located in the middle of the fish fillet, ensuring the stability of clamping.

[0042] In this embodiment, after the clamping plate 41 clamps the fish fillet, driving the third electric push rod 56 to extend can drive the lifting plate 57 to continue to move downward. The lifting plate 57 generates a downward acting force on the drying plate 21, which can drive the drying plate 21 to move downward to provide space for the flipping of the fish fillet.

[0043] Further, a plurality of guide rods 59 are inserted on the surfaces of the lifting plates 57. Push plates 58 are fixedly connected to the guide rods 59. The upper surfaces of the push plates 58 are concave. The two ends of the guide rods 59 are respectively fixedly connected to the two ends of the push plates 58. A connecting spring 510 is sleeved on the outer surface of the guide rod 59. One end of the connecting spring 510 is fixedly connected to the push plate 58, and the other end of the connecting spring 510 is fixedly connected to the lifting plate 57.

[0044] In this embodiment, since the sizes of the fish slices are different, when the two lifting plates 57 approach each other, the two corresponding push plates 58 on the two lifting plates 57 can move according to the size of the fish slices, so that fish slices of various sizes can be pushed onto the clamping plates 41, and the clamping plates 41 can be located in the middle of the fish slices. In addition, when the push plate 58 moves, the connecting spring 510 undergoes elastic deformation. After the two lifting plates 57 are reset, the connecting spring 510 is reset, which can drive the push plate 58 to reset.

[0045] Usage process: The user lays the cut fish slices on the drying plate 21. By driving the first electric push rod 28 to repeatedly extend and retract, the moving plate 27 and the top plate 29 can be driven to move reciprocally in the vertical direction. Thus, the top plate 29 can repeatedly lift the fish slices to prevent the fish slices from sticking to the drying plate 21. In addition, by setting the moving assembly 3, the clamping assembly 4 and the pushing assembly 5 to be used in cooperation, the moving assembly 3 can drive the clamping assembly 4 to move along the surface of the drying plate 21. The clamping assembly 4 can clamp the fish slices on the drying plate 21. In addition, the pushing assembly 5 can drive the fish slices to be pushed between the two clamping plates 41 and can push the drying plate 21 downward to provide space for flipping the fish slices.

[0046] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0047] 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 drying machine for producing sea bass slices with an anti - sticking structure, comprising a base (1) and a drying assembly (2) arranged on the base (1), characterized in that, The drying component (2) includes multiple groups of drying plates (21), the drying plates (21) are movably installed above the base (1), the height of the drying plates (21) relative to the base (1) is adjustable, a moving component (3) is arranged on one side of the base (1), a rotatable clamping component (4) is arranged at the moving end of the moving component (3), the clamping part of the clamping component (4) is U-shaped, and the two sides of the open end of the clamping part approach or move away from each other; The downward movement direction of the drying plate (21) is the positive direction. The drying plate (21) is at the starting end of the movement. When the open side of the clamping part is distributed vertically, the bottom of the open end of the clamping part is located on the upper surface of the drying plate (21).

2. The air-drying machine for producing sea bass fillets with an anti-sticking structure according to claim 1, wherein: The drying component (2) further includes ear plates (22) fixedly installed on both sides of the drying plate (21). Vertical rods (23) are fixedly connected to the bottoms of the ear plates (22). Sleeves (24) adapted to the vertical rods (23) are fixedly connected to the base (1). The lower ends of the vertical rods (23) are slidably inserted into the corresponding sleeves (24). Support springs (25) are sleeved on the outer surfaces of the vertical rods (23). Under the action of an external force, the vertical rods (23) and the drying plates (21) can move downward along the sleeves (24).

3. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 2, wherein: Grooves (26) evenly distributed are formed on the surfaces of the drying plates (21). Moving plates (27) are arranged below the drying plates (21). First electric push rods (28) are fixedly connected to both sides of the upper surfaces of the moving plates (27). The upper ends of the first electric push rods (28) are fixedly connected to the drying plates (21). Uniformly distributed top plates (29) are fixedly connected to the upper surfaces of the moving plates (27). The top plates (29) correspond to the grooves (26) one by one, and the upper ends of the top plates (29) are slidably installed inside the corresponding grooves (26).

4. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 2, wherein: The moving component (3) includes a moving motor (31), a first lead screw (32), and a first ball seat (33). The first lead screw (32) is rotatably installed on one side of the base (1). The moving motor (31) is fixedly installed on the outer surface of the base (1). The output shaft of the moving motor (31) is fixedly connected to one end of the first lead screw (32). The first ball seat (33) is sleeved on the outer surface of the first lead screw (32). The clamping component (4) is arranged on the first ball seat (33).

5. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 4, characterized in that: The clamping component (4) includes a connecting block (42) fixedly installed on the lower surface of the first ball seat (33). A rotating motor (43) is fixedly installed on the outer surface of the connecting block (42). The output shaft of the rotating motor (43) penetrates through the connecting block (42) and is fixedly connected to a sliding seat (44). Second electric push rods (45) are fixedly connected to both sides of the sliding seat (44). The telescopic ends of the second electric push rods (45) are fixedly connected to sliders (46). The two groups of sliders (46) are slidably installed inside the sliding seat (44). Clamping plates (41) are fixedly connected to the surfaces of the sliders (46). The clamping plates (41) are located above the drying plates (21).

6. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 5, wherein: When the sunning board (21) is located on the upper surface of the sunning board (21), both sides of the upper surface of the sunning board (21) are set to be inclined.

7. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 6, characterized in that: A pushing component (5) is arranged on the upper surface of the first ball seat (33). The pushing component (5) can drive the fish slices to be pushed between the two groups of clamping plates (41) and can push the sunning board (21) downward.

8. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 7, wherein: The pushing component (5) includes a bidirectional moving part arranged on the upper surface of the first ball seat (33). Installation plates (51) are arranged at both mobile ends of the bidirectional moving part. Third electric push rods (56) are fixedly connected to both sides of the lower surface of the installation plate (51). Lifting plates (57) are fixedly connected to the telescopic ends of the third electric push rods (56).

9. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 8, characterized in that: The bidirectional moving part includes a moving seat (52) fixedly installed on the upper surface of the first ball seat (33). A second lead screw (54) is rotatably connected inside the moving seat (52). A driving motor (53) is fixedly installed on the outer surface of the moving seat (52). The output shaft of the driving motor (53) is fixedly connected to one end of the second lead screw (54). The thread directions at both ends of the second lead screw (54) are opposite. Second ball seats (55) are sleeved at both ends of the first ball seat (33). The two groups of second ball seats (55) are respectively fixedly connected to the two groups of installation plates (51).

10. The air-drying machine for producing sea bass slices with an anti-sticking structure according to claim 9, characterized in that: Multiple guide rods (59) are inserted on the surfaces of the lifting plates (57). Push plates (58) are fixedly connected to the guide rods (59). The upper surface of the push plate (58) is set to be concave. The two ends of the guide rod (59) are respectively fixedly connected to both ends of the push plate (58). A connecting spring (510) is sleeved on the outer surface of the guide rod (59). One end of the connecting spring (510) is fixedly connected to the push plate (58), and the other end of the connecting spring (510) is fixedly connected to the lifting plate (57).