Anti-adhesion beef slicer cutter structure

By designing an anti-sticking blade structure, the beef slicer utilizes a reciprocating lifting assembly and gear meshing transmission to achieve automatic unloading of the meat slices, thus solving the problem of meat slice sticking in the beef slicer and ensuring slicing quality and operational efficiency.

CN224084577UActive Publication Date: 2026-04-07ANHUI HAOXIANGKANG DELICIOUS FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

When cutting beef with high water content, uneven fat distribution, or in a semi-thawed/chilled state, the cut beef slices tend to stick to the blade surface, resulting in uneven slice thickness and broken edges, affecting the product's appearance and taste.

Method used

The beef slicer adopts an anti-sticking blade structure. The blade assembly is driven to move and cut by a reciprocating lifting component. When the blade assembly is about to finish cutting, the rotating unloading component is driven to press the meat slices onto the transfer component. Combined with the meshing transmission of gears and toothed plates, the unloading rod automatically extends and presses, preventing the meat slices from sticking together.

Benefits of technology

It effectively prevents meat slices from sticking to the blade surface, avoiding deformation and tearing, ensuring the integrity of the meat slices' appearance and taste, while reducing labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-adhesion beef slicer cutter structure, and relates to the technical field of food processing. The device comprises a supporting table, a pushing assembly and a transferring assembly are arranged at the top of the supporting table, a reciprocating lifting assembly is arranged between the pushing assembly and the transferring assembly, a cutter assembly is arranged at the bottom of the reciprocating lifting assembly, a rotary discharging assembly is arranged in the cutter assembly, and driving assemblies are arranged on the two sides of the reciprocating lifting assembly. The cutter assembly is driven by the reciprocating lifting assembly to move downwards, so that meat blocks are cut by the cutter assembly, when the cutter assembly is about to cut meat slices, the driving assembly drives the discharging assembly to rotate, and at the moment, the rotating discharging end can press the meat slices on the transferring assembly; according to the arrangement, the sliced meat is effectively prevented from being adhered to the surface of the cutter assembly, deformation and even tearing of the sliced meat caused by cutter movement or extrusion of the sliced meat are avoided, and therefore the integrity of the appearance condition and the eating taste of the sliced meat is ensured.
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Description

Technical Field

[0001] This utility model belongs to the field of food processing technology, and specifically relates to a non-sticking cutter structure for a beef slicer. Background Technology

[0002] Beef slicing is a common pre-processing step in the catering and food processing industries, widely used in hot pot, barbecue, and fast food products. As a key piece of equipment for achieving efficient and uniform cutting, the performance of the core component of the slicing machine—the blade—directly affects the slicing quality, efficiency, and ease of operation.

[0003] When slicing beef with high water content, uneven fat distribution, or in a semi-thawed / chilled state using a slicer, the cut beef slices easily stick to the blade surface. This adhesion not only directly interrupts the continuous cutting process, but also causes deformation or even tearing of the adhered slices due to subsequent blade movement or the squeezing and pulling of the meat pieces. Ultimately, this results in defects such as severely uneven slice thickness and edge damage, significantly degrading the product's appearance and taste, directly affecting its market value and consumer experience. Utility Model Content

[0004] To address the problem that cut beef slices tend to stick to the surface of the blade, this invention proposes an anti-sticking beef slicer blade structure to overcome the aforementioned technical problems in existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an anti-sticking beef slicer blade structure, including a support platform. A pushing component and a transfer component are provided on the top of the support platform. A reciprocating lifting component is provided between the pushing component and the transfer component. A blade assembly is provided at the bottom of the reciprocating lifting component. A rotating unloading component is provided inside the blade assembly. A drive component is provided on both sides of the reciprocating lifting component. The drive component is poweredly connected to the rotating unloading component.

[0007] The reciprocating lifting assembly is used to drive the blade assembly to move downward so that the blade assembly can complete the slicing operation. At the same time, after the blade assembly moves to the predetermined position, the driving assembly drives the rotating unloading assembly so that the rotating unloading assembly pushes the meat slices to the transfer assembly.

[0008] Furthermore, the pushing assembly includes a material box, which is fixedly installed on the top of the support platform. A pushing hydraulic cylinder is fixedly installed on one side of the material box. The output end of the pushing hydraulic cylinder extends into the interior of the material box and is fixedly connected to a pushing plate. A baffle plate is rotatably connected to the top of the material box.

[0009] Further, the transfer assembly comprises a transfer groove, which is arranged on the top of the support table, a plurality of transfer rollers are rotatably connected in the transfer groove, a transfer belt is arranged on the outer surface of the transfer rollers, a transfer motor is fixedly installed on the outer side of the support table, and the output end of the transfer motor is fixedly connected with the transfer rollers.

[0010] Further, the reciprocating lifting assembly comprises a support frame, which is fixedly installed on the top of the support table, a lifting hydraulic cylinder is fixedly installed on the top of the support frame, the output end of the lifting hydraulic cylinder penetrates through the support frame and is fixedly connected with a lifting frame, and a guide rod is fixedly connected with the top of the lifting frame.

[0011] Further, the knife assembly comprises an installation plate, which is fixedly installed in the lifting frame, a taking plate is fixedly connected with the bottom of the installation plate, and a cutting knife is fixedly connected with the bottom of the taking plate.

[0012] Further, the rotating unloading assembly comprises a receiving groove, a plurality of receiving grooves are arranged on the surface of the cutting knife, unloading rods are movably connected in the receiving grooves, a moving groove is arranged on the outer surface of the support frame, a rotating shaft is movably connected in the moving groove, the unloading rods are fixedly connected with the rotating shaft, and the rotating shaft is rotatably connected with the cutting knife.

[0013] Further, the driving assembly comprises a moving frame, which is arranged on the outer side of the support frame, one end of the rotating shaft penetrates through the moving frame, a driving rod is rotatably connected in the moving frame, gears are fixedly connected with the outer surfaces of the rotating shaft and the driving rod, a toothed plate is fixedly installed on the outer surface of the support frame corresponding to the gears, a shielding box is fixedly installed on the outer side of the support frame, a fixing rod is fixedly connected in the shielding box, and the moving frame is movably connected with the fixing rod.

[0014] Further, gears are fixedly connected between the outer surface of the rotating shaft and the inner wall of the receiving cylinder.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] 1、The knife assembly is driven downward by the reciprocating lifting assembly, and the knife assembly cuts the meat block, when the knife assembly is about to complete the cutting of the meat slice, the driving assembly drives the rotating unloading assembly to rotate, and the rotating unloading end can press the meat slice on the transfer assembly; the above-mentioned setting effectively prevents the meat slice from adhering to the surface of the knife assembly, avoids the deformation or even tearing of the meat slice caused by the movement of the knife or the extrusion of the meat block, and ensures the integrity of the appearance and edible taste of the meat slice.

[0017] 2、The utility model discloses a cutting knife is moved down to the lifting hydraulic cylinder and lifting frame, so that the cutting knife is cut to the meat piece, when the cutting knife is about to complete the cutting of the meat piece, the gear of outside engagement with the toothed plate, when continuing to move down with the cutting knife, two meshing gears are also constantly rotating, and the rotating shaft can rotate several discharge rods from the inside of the storage groove under the drive of the corresponding gear.

[0018] Of course, it is not necessary for any embodiment of the utility model to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used for the embodiment description, obviously, the drawings in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0020] Figure 1 It is the external contour structure schematic diagram of the utility model;

[0021] Figure 2 It is the transfer assembly structure schematic diagram of the utility model;

[0022] Figure 3 It is the lifting assembly structure schematic diagram of the utility model;

[0023] Figure 4 It is the Figure 3 It is the enlarged structure schematic diagram of place A in the utility model;

[0024] Figure 5 It is the cutter assembly structure schematic diagram of the utility model;

[0025] Figure 6 It is the Figure 5 It is the enlarged structure schematic diagram of place B in the utility model;

[0026] Figure 7 It is the Figure 5 It is the enlarged structure schematic diagram of place C in the utility model.

[0027] In the drawings, the component list represented by each sign is as follows:

[0028] 1, support platform; 2, push material assembly; 201, material box; 202, push material hydraulic cylinder; 203, push material plate; 204, shielding plate; 3, transfer assembly; 301, transfer groove; 302, transfer roller; 303, transfer belt; 304, transfer motor; 4, reciprocating lifting assembly; 401, support frame; 402, lifting hydraulic cylinder; 403, lifting frame; 404, guide rod; 5, cutter assembly; 501, mounting plate; 502, taking plate; 503, cutting knife; 6, rotating unloading assembly; 601, storage groove; 602, unloading rod; 603, moving groove; 604, rotating shaft; 7, driving assembly; 701, moving frame; 702, driving rod; 703, gear; 704, toothed plate; 705, shielding box; 706, fixed rod; 707, storage cylinder; 708, torsional spring. DETAILED DESCRIPTION

[0029] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] Please refer to Figures 1-7 The utility model discloses a kind of anti-adhesion formula beef slicer cutter structures, including support platform 1, the top of support platform 1 is provided with push material assembly 2 and transfer assembly 3, push material assembly 2 and transfer assembly 3 are provided with reciprocating lifting assembly 4, the bottom of reciprocating lifting assembly 4 is provided with cutter assembly 5, the inside of cutter assembly 5 is provided with rotating unloading assembly 6, the two sides of reciprocating lifting assembly 4 are provided with driving assembly 7, driving assembly 7 is connected with rotating unloading assembly 6 power;

[0032] Reciprocating lifting assembly 4 is used to drive cutter assembly 5 to move downwards, so that cutter assembly 5 completes slicing operation, and after cutter assembly 5 moves to predetermined position, driving assembly 7 drives rotating unloading assembly 6, so that rotating unloading assembly 6 pushes meat slice to transfer assembly 3.

[0033] When the pushing component 2 pushes the meat block to the underside of the cutting component 5, the reciprocating lifting component 4 drives the cutting component 5 to move downward, thereby enabling the cutting component 5 to cut the meat block. When the cutting component 5 is about to finish cutting the meat slice, the driving component 7 drives the rotating unloading component 6 to rotate. At this time, the rotating unloading component 6 can press the meat slice onto the transfer component 3, and at the same time, the meat slice is also separated from the meat block. Then the cutting component 5 moves upward, and the cut meat slice is moved out from the underside of the cutting component 5 under the transfer of the transfer component 3.

[0034] The reciprocating lifting assembly 4 drives the cutting tool assembly 5 to move downwards, and the cutting tool assembly 5 cuts the meat pieces. When the cutting tool assembly 5 is about to finish cutting the meat pieces, the driving assembly 7 drives the unloading assembly 6 to rotate. At this time, the rotating unloading end can press the meat pieces onto the transfer assembly 3. The above settings effectively prevent the meat pieces from sticking to the surface of the cutting tool assembly 5, and avoid deformation or even tearing of the meat pieces caused by the movement of the cutting tool or the squeezing of the meat pieces, thereby ensuring the integrity of the appearance and taste of the meat pieces.

[0035] In one embodiment, the material pushing assembly 2 includes a material box 201, which is fixedly installed on the top of the support platform 1. A material pushing hydraulic cylinder 202 is fixedly installed on one side of the material box 201. The output end of the material pushing hydraulic cylinder 202 extends into the interior of the material box 201 and is fixedly connected to a material pushing plate 203. A baffle plate 204 is rotatably connected to the top of the material box 201.

[0036] By placing the meat block on top of the support platform 1, rotating the baffle plate 204 to block the top of the material box 201, and then driving the pusher hydraulic cylinder 202, the output end of the pusher hydraulic cylinder 202 pushes the meat block through the pusher plate 203, and the meat block automatically moves to the lower side of the cutter assembly 5.

[0037] In one embodiment, the transfer assembly 3 includes a transfer groove 301, which is formed on the top of the support platform 1. A plurality of transfer rollers 302 are rotatably connected inside the transfer groove 301. A transfer belt 303 is provided on the outer surface of the transfer rollers 302. A transfer motor 304 is fixedly installed on the outer side of the support platform 1. The output end of the transfer motor 304 is fixedly connected to the transfer rollers 302.

[0038] The transfer motor 304 can drive the transfer belt 303 to rotate inside the transfer trough 301 through the transfer roller 302; when the meat slices fall onto the transfer belt 303 under the pressure of the rotating unloading assembly 6, the transfer belt 303 can move the meat slices; after the cutter assembly 5 completes the cutting of the meat slices, the meat slices can be moved out from the underside of the cutter assembly 5 in a timely manner.

[0039] In one embodiment, the reciprocating lifting assembly 4 includes a support frame 401, which is fixedly installed on the top of the support platform 1. A lifting hydraulic cylinder 402 is fixedly installed on the top of the support frame 401. The output end of the lifting hydraulic cylinder 402 passes through the support frame 401 and is fixedly connected to a lifting frame 403. A guide rod 404 is fixedly connected to the top of the lifting frame 403, and the top end of the guide rod 404 passes through the support frame 401.

[0040] By driving the lifting hydraulic cylinder 402, the lifting end of the lifting hydraulic cylinder 402 drives the lifting frame 403 to move up and down. At the same time, the moving lifting frame 403 can drive the cutting tool assembly 5 to move up and down, so that the cutting tool assembly 5 can complete the cutting of meat slices. The lifting frame 403 can drive the guide rod 404 to slide on the support frame 401. At this time, the guide rod 404 can guide the lifting frame 403 through the support frame 401, so that the stability of the lifting frame 403 driving the cutting tool assembly 5 to move is further improved.

[0041] In one embodiment, the aforementioned tool assembly 5 includes a mounting plate 501, which is fixedly installed inside the lifting frame 403. A pick-up plate 502 is fixedly connected to the bottom of the mounting plate 501, and a cutting blade 503 is fixedly connected to the bottom of the pick-up plate 502.

[0042] The mounting plate 501 can be moved into the lifting frame 403 by the pick-up plate 502, and then the mounting plate 501 can be fixed inside the lifting frame 403 by fixing bolts, so that the cutting blade 503 is connected to the lifting frame 403. The pick-up plate 502 provides the operator with a good point of leverage when replacing the cutting blade 503, thus effectively avoiding the phenomenon that the cutting blade 503 will cut the operator's hands when picking it up.

[0043] In one embodiment, the rotary unloading assembly 6 includes a receiving groove 601, which has multiple receiving grooves 601 on the surface of the cutting blade 503. Each of the receiving grooves 601 is movably connected to an unloading rod 602. The outer surface of the support frame 401 has a moving groove 603, which is movably connected to a rotating shaft 604. Each of the unloading rods 602 is fixedly connected to the rotating shaft 604, which is rotatably connected to the cutting blade 503.

[0044] When the cutting blade 503 is about to finish cutting the meat slices, the rotating shaft 604 rotates. At this time, several unloading rods 602 can rotate out from inside the receiving groove 601 driven by the rotating shaft 604. The rotating unloading rods 602 can push the meat slices attached to the cutting blade 503, so that the meat slices can be detached from the surface of the cutting blade 503.

[0045] In one embodiment, the drive assembly 7 includes a movable frame 701, which is disposed on the outer side of the support frame 401. One end of the rotating shaft 604 passes through the movable frame 701. A drive rod 702 is rotatably connected inside the movable frame 701. Gears 703 are fixedly connected to the outer surfaces of both the rotating shaft 604 and the drive rod 702. A toothed plate 704 is fixedly installed on the outer surface of the support frame 401 corresponding to the gears 703. A shielding box 705 is fixedly installed on the outer side of the support frame 401. A fixing rod 706 is fixedly connected inside the shielding box 705. The movable frame 701 is movably connected to the fixing rod 706.

[0046] When the cutting blade 503 moves downward, the rotating shaft 604 can move inside the moving groove 603. The rotating shaft 604 drives two meshing gears 703 to move inside the shielding box 705 via the moving frame 701. When the cutting blade 503 is about to finish cutting the meat slice, the gear 703 on the drive rod 702 meshes with the toothed plate 704. At this time, as the cutting blade 503 continues to move downward, the toothed plate 704 can drive the gear 703 on the drive rod 702 to rotate. At this time, the two meshing gears... The gears 703 rotate simultaneously, and the shaft 604 rotates under the drive of the corresponding gears 703. Several unloading rods 602 can rotate directly out of the inside of the storage tank 601 under the drive of the shaft 604. After the cutting blade 503 finishes cutting the meat slices, the unloading rods 602 also press the meat slices onto the top of the conveyor belt 303. When the cutting blade 503 moves upward, the two gears 703 rotate in opposite directions under the drive of the toothed plate 704, so that the unloading rods 602 can move back into the inside of the storage tank 601.

[0047] In one embodiment, for the aforementioned movable frame 701, a storage tube 707 is fixedly connected to the outer surface of the movable frame 701, one end of the rotating shaft 604 extends into the interior of the storage tube 707, and a torsion spring 708 is fixedly connected between the outer surface of the rotating shaft 604 and the inner wall of the storage tube 707.

[0048] The torsion spring 708 can pull the rotating shaft 604. The torsion spring 708 ensures that the rotating shaft 604 will not rotate arbitrarily when the gear 703 is not meshing with the gear plate 704.

[0049] Through the above technical solution, 1. The reciprocating lifting assembly 4 drives the cutting tool assembly 5 to move downwards, causing the cutting tool assembly 5 to cut the meat pieces. When the cutting tool assembly 5 is about to complete the cutting of the meat slices, the driving assembly 7 drives the unloading assembly 6 to rotate. At this time, the rotating unloading end can press the meat slices onto the transfer assembly 3. The above settings effectively prevent the meat slices from sticking to the surface of the cutting tool assembly 5, avoiding deformation or even tearing of the meat slices due to the movement of the cutting tool or the squeezing of the meat pieces, thereby ensuring the integrity of the appearance and taste of the meat slices; 2. By moving the lifting hydraulic cylinder 402 and the lifting frame 403 downwards, the cutting blade 503 is able to... The cutting blade 503 cuts the meat slices. When the cutting blade 503 is about to finish cutting the meat slices, the outer gear 703 meshes with the toothed plate 704. At this time, as the cutting blade 503 continues to move downward, the two meshing gears 703 also rotate continuously. At the same time, the rotating shaft 604, driven by the corresponding gears 703, can rotate several unloading rods 602 out from the inside of the receiving groove 601. The above-mentioned setting forms a closed-loop linkage between the cutting of the cutting blade 503 and the action of the unloading rods 602. Without the need for additional control devices, the automatic extension and pressing of the unloading rods 602 can be achieved solely by the meshing transmission of the gears 703 and the toothed plate 704, reducing the cost of manual operation.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A blade structure for an anti-sticking beef slicer, comprising a support platform (1), characterized in that, The top of the support platform (1) is provided with a pushing component (2) and a transfer component (3). A reciprocating lifting component (4) is provided between the pushing component (2) and the transfer component (3). A cutting tool component (5) is provided at the bottom of the reciprocating lifting component (4). A rotating unloading component (6) is provided inside the cutting tool component (5). A driving component (7) is provided on both sides of the reciprocating lifting component (4). The driving component (7) is poweredly connected to the rotating unloading component (6). The reciprocating lifting assembly (4) is used to drive the cutting tool assembly (5) to move downward so that the cutting tool assembly (5) can complete the slicing operation. At the same time, after the cutting tool assembly (5) moves to the predetermined position, the driving assembly (7) drives the rotating unloading assembly (6) so that the rotating unloading assembly (6) pushes the meat slices to the transfer assembly (3).

2. The anti-sticking beef slicer blade structure according to claim 1, characterized in that, The pushing assembly (2) includes a material box (201), which is fixedly installed on the top of the support platform (1). A pushing hydraulic cylinder (202) is fixedly installed on one side of the material box (201). The output end of the pushing hydraulic cylinder (202) extends into the interior of the material box (201) and is fixedly connected to a pushing plate (203). A baffle plate (204) is rotatably connected to the top of the material box (201).

3. The anti-sticking beef slicer blade structure according to claim 1, characterized in that, The transfer assembly (3) includes a transfer groove (301), which is opened on the top of the support platform (1). Several transfer rollers (302) are rotatably connected inside the transfer groove (301). A transfer belt (303) is provided on the outer surface of the transfer rollers (302). A transfer motor (304) is fixedly installed on the outside of the support platform (1). The output end of the transfer motor (304) is fixedly connected to the transfer rollers (302).

4. The anti-sticking beef slicer blade structure according to claim 1, characterized in that, The reciprocating lifting assembly (4) includes a support frame (401), which is fixedly installed on the top of the support platform (1). A lifting hydraulic cylinder (402) is fixedly installed on the top of the support frame (401). The output end of the lifting hydraulic cylinder (402) passes through the support frame (401) and is fixedly connected to a lifting frame (403). A guide rod (404) is fixedly connected to the top of the lifting frame (403), and the top end of the guide rod (404) passes through the support frame (401).

5. The anti-sticking beef slicer blade structure according to claim 4, characterized in that, The cutting tool assembly (5) includes a mounting plate (501), which is fixedly installed inside the lifting frame (403). A pick-up plate (502) is fixedly connected to the bottom of the mounting plate (501), and a cutting blade (503) is fixedly connected to the bottom of the pick-up plate (502).

6. The anti-sticking beef slicer blade structure according to claim 5, characterized in that, The rotating unloading assembly (6) includes a receiving groove (601), which has multiple openings on the surface of the cutting blade (503). Each of the receiving grooves (601) is movably connected to an unloading rod (602). The outer surface of the support frame (401) is provided with a moving groove (603), which is movably connected to a rotating shaft (604). Each of the unloading rods (602) is fixedly connected to the rotating shaft (604), and the rotating shaft (604) is rotatably connected to the cutting blade (503).

7. The anti-sticking beef slicer blade structure according to claim 6, characterized in that, The drive assembly (7) includes a movable frame (701), which is located on the outside of the support frame (401). One end of the rotating shaft (604) passes through the movable frame (701). A drive rod (702) is rotatably connected inside the movable frame (701). Gears (703) are fixedly connected to the outer surfaces of both the rotating shaft (604) and the drive rod (702). A toothed plate (704) is fixedly installed on the outer surface of the support frame (401) corresponding to the gears (703). A shielding box (705) is fixedly installed on the outside of the support frame (401). A fixing rod (706) is fixedly connected inside the shielding box (705). The movable frame (701) and the fixing rod (706) are movably connected.

8. The anti-sticking beef slicer blade structure according to claim 7, characterized in that, A storage tube (707) is fixedly connected to the outer surface of the movable frame (701), one end of the rotating shaft (604) extends into the interior of the storage tube (707), and a torsion spring (708) is fixedly connected between the outer surface of the rotating shaft (604) and the inner wall of the storage tube (707).