Food cutting machine with safety protection function

By introducing a saw blade protection device, a tension release device, and a braking device into the food cutting machine, the safety hazard caused by operators accidentally touching the saw blade has been solved, and a safety protection effect has been achieved.

CN223981874UActive Publication Date: 2026-03-10纪嘉诚
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing food cutting machines lack safety protection devices, and operators are easily injured when they accidentally touch the saw blade. Furthermore, the continuous operation of the band saw blade may lead to serious industrial accidents.

Method used

A food cutting machine including a saw blade protection device, a tension release device, and a braking device was designed. The clamping mechanism is controlled by an electromagnetic actuator to clamp the saw blade, release the tension, and stop the rotation of the wheel to achieve safety protection.

Benefits of technology

It effectively reduces hand injuries caused by the saw blade, prevents the saw blade from continuing to move, improves operational safety, and avoids potential workplace accidents.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a food cutting machine with a safety protection function. The food cutting machine comprises a base, a cutting device, a saw belt protection device and a reset device. The cutting device is arranged on the base and comprises a first rotating wheel and a second rotating wheel, and a saw belt is arranged between the first rotating wheel and the second rotating wheel in a surrounding mode. The saw band protection device is provided with an electromagnetic actuator, an actuating rod and a clamping mechanism arranged on a moving path of the saw band, the electromagnetic actuator acts between a power-on position and a power-off position, one end of the actuating rod is connected to the electromagnetic actuator, the other end of the actuating rod is connected to the clamping mechanism, and when the actuating rod is in the power-on position, the actuating rod enables the clamping mechanism to be in a relaxed state relative to the saw band. At the power-off position, the actuating rod drives the clamping mechanism to clamp the saw band; and the reset device can enable the actuating rod and the electromagnetic actuator to reset to a mutual adsorption state, so that the purpose of safety protection is achieved.
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Description

Technical Field

[0001] This utility model relates to a food cutting machine, and more particularly to a food cutting machine with safety protection functions. Background Technology

[0002] For example, Taiwan Utility Model Patent No. M573582 discloses a food cutting machine that can be used to cut food. The cutting unit of the food cutting machine includes a second motor, two drive wheels, and a band saw blade. The second motor is driven by one of the drive wheels, and the band saw blade is mounted on the outer edge of a portion of the wheel rim. When the food cutting machine is operating, the second motor drives one of the drive wheels, which in turn pulls the other drive wheel via the band saw blade. This allows the food to be transported to the band saw blade of the cutting unit via a conveyor belt for cutting.

[0003] However, the aforementioned food cutting machine is not equipped with protective devices. If an operator accidentally touches the band saw blade during use, it could easily cause injury. Furthermore, the band saw blade will continue to operate under these circumstances, and if the machine is not stopped immediately, it could lead to a more serious industrial accident, posing a safety hazard. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a food cutting machine with safety protection functions. When a worker accidentally touches the saw blade, the clamping mechanism clamps the saw blade, reducing the damage to the hand caused by the saw blade and thus achieving a safety protection function.

[0005] To achieve the aforementioned objectives, this utility model provides a food cutting machine with safety protection function in one embodiment, which includes a base, a cutting device, a saw band protection device and a reset device. A cutting device, mounted on a base, includes a first rotating wheel and a second rotating wheel separated from each other. A saw blade is arranged around the first and second rotating wheels, and a virtual axis is defined by the centers of the first and second rotating wheels, dividing a first setting area and a second setting area by the virtual axis. A saw blade protection device, mounted on the base, includes an electromagnetic actuator, an actuator rod, and a clamping mechanism arranged on the moving path of the saw blade. The electromagnetic actuator is located in the first setting area and operates between an energized position and an de-energized position. The clamping mechanism is located in the second setting area. One end of the actuator rod is connected to the electromagnetic actuator, and the other end is connected to the clamping mechanism across the virtual axis. In the energized position, the actuator rod causes the clamping mechanism to relax relative to the saw blade. In the de-energized position, the actuator rod causes the clamping mechanism to clamp the saw blade. A reset device, mounted on the base and located in the first setting area, enables the actuator rod to swing and displace, resetting the actuator rod and the electromagnetic actuator to a mutually attracted state.

[0006] In one embodiment, a tension release device is also provided on the base. When the electromagnetic actuator is in the de-energized position, the tension release device causes the first rotating wheel to displace along the virtual axis direction.

[0007] In one embodiment, the base has an upper chassis, a lower chassis, and a column connecting the upper chassis and the lower chassis. The first rotating wheel is rotatably mounted on the upper chassis with a first rotating shaft, and the second rotating wheel is rotatably mounted on the lower chassis with a second rotating shaft. The tension release device includes a slide and an electromagnetic component. The slide is through which the first rotating shaft passes. The slide and the electromagnetic component can attract each other due to the magnetic field effect. When the electromagnetic actuator is in the de-energized position, the electromagnetic component and the slide are separated due to the disappearance of the magnetic field.

[0008] In one embodiment, the tension release device includes a plurality of guide posts, one end of which is fixed to the slide and the other end of which extends through the electromagnetic component; a plurality of tension members are provided between the slide and the upper housing.

[0009] In one embodiment, an adjustment device is further included, comprising a rotating member exposed to the upper housing, a transmission rod, a first bevel gear, a second bevel gear, and a lifting rod. One end of the transmission rod is connected to the rotating member, and the other end of the transmission rod is connected to the first bevel gear. The second bevel gear meshes orthogonally with the first bevel gear. One end of the lifting rod is axially mounted on the second bevel gear, and the other end of the lifting rod is connected to the electromagnetic component. The lifting rod can magnetically engage the electromagnetic component with the slide block along the virtual axis direction as the second bevel gear rotates.

[0010] In one embodiment, the actuating rod is pivotally mounted on the upper housing about a pivot. The actuating rod has a first end and a second end. The first end is connected to the electromagnetic actuator, and the second end is connected to the clamping mechanism. The distance from the first end to the pivot is greater than the distance from the second end to the pivot.

[0011] In one embodiment, the upper housing has a fixed base located in the second mounting area. The clamping mechanism includes a force-applying member, a spring member, two linkage members, two drive shafts, and two clamping jaws. The second end of the actuating rod passes through the fixed base. The force-applying member is located in the fixed base and has a protrusion that is in contact with the second end. The spring member is located in the fixed base and abuts against the force-applying member, causing the force-applying member to abut against the second end. The two drive shafts extend through the fixed base. The two linkage members are connected to one end of the two drive shafts. The two clamping jaws are connected to the other end of the two drive shafts and are located on both sides of the saw blade. The two linkage members are linked to the end of the force-applying member away from the spring member. The force-applying member can be lifted by the actuating rod to generate a displacement parallel to the virtual axis direction, causing the two linkage members to swing, resulting in the two drive shafts linking with the two clamping jaws to perform a clamping action relative to the saw blade.

[0012] In one embodiment, the clamping mechanism includes a crossbar and two connecting rods. Each of the two connecting rods includes a positioning shaft located away from the two drive shafts. One end of each of the two connecting rods is fixed to the force-applying member, and the other end of each connecting rod is slidably connected to the crossbar. The force-applying member and the crossbar are jointly clamped and connected to the two positioning shafts. Each of the two clamping jaws is provided with an auxiliary clamping member facing each other. Each of the two auxiliary clamping members has a clamping plane to clamp the saw blade.

[0013] In one embodiment, the electromagnetic actuator includes an iron plate attached to the actuating rod and an electromagnet disposed facing the iron plate; the reset device is an electric cylinder having a cylinder body and a rod extending from the cylinder body, the rod being disposed parallel to the virtual axis and capable of pushing the actuating rod so that the iron plate and the electromagnet are magnetically attracted to each other.

[0014] In one embodiment, a braking device is further included to control the first rotating wheel to stop rotating when the power is off. The braking device includes a brake seat sleeved on the first rotating shaft, a brake pad fixed to the first rotating shaft and located in the brake seat, a friction pad slidably sleeved on one side of the brake pad, a coil disposed on the brake seat and located on the back side of the friction pad, and two springs disposed on the brake seat and normally pushing the friction pad toward the brake pad. When the coil is energized, the friction pad is attracted by the coil, so that the friction pad does not contact the brake pad, allowing the first rotating shaft to rotate freely. When the coil is de-energized, the two springs cause the friction pad to contact the brake pad, preventing the first rotating shaft from rotating.

[0015] The beneficial effects of this utility model are:

[0016] This utility model uses a saw blade protection device to ensure that when a worker's hand accidentally touches the saw blade during operation, the saw blade can be immediately clamped and fixed by a clamping mechanism, stopping the saw blade from moving and reducing the risk of injury to the hand, thereby achieving a safe protective effect.

[0017] In another embodiment of the present invention, a tension release device is provided on the base. When the electromagnetic actuator is in the de-energized position, the tension release device causes the first rotating wheel to move along the virtual axis direction to release the tension of the saw belt, thereby achieving the effect of safety protection.

[0018] In another embodiment of the present invention, a braking device is also included, which controls the first rotating wheel to stop rotating when the power is off, thereby preventing the saw blade from continuing to move and achieving the effect of safety protection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the appearance of this utility model.

[0020] Figure 2This is a schematic diagram of the appearance of the present invention from another perspective, showing the main internal structure.

[0021] Figure 3 This is a schematic diagram of the cutting device of this utility model.

[0022] Figure 4 This is a schematic diagram of the saw band protection device located in the upper housing of this utility model in the energized position, showing that the reset device causes the actuator rod and the electromagnetic actuator to be attracted to each other.

[0023] Figure 5 This utility model Figure 3 A magnified view of a portion of the diagram shows that the two clamping jaws are in a loosened state relative to the saw blade.

[0024] Figure 6 This is a side view of the saw blade protection device inside the upper casing of this utility model.

[0025] Figure 7 According to this utility model Figure 3 The cross-sectional view obtained along the AA section line shows that the braking device is not activated.

[0026] Figure 8 This is a schematic diagram of the saw band protection device located in the upper housing of this utility model in the power-off position, showing that the iron disc and the electromagnet are separated, causing the clamping mechanism to operate.

[0027] Figure 9 This is a schematic diagram of the two clamping jaws of this utility model clamping the saw blade.

[0028] Figure 10 This is a schematic diagram of the braking device of this utility model, showing the friction pads contacting the brake pads.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100: Food cutting machine

[0031] 10: Base

[0032] 11: Upper chassis

[0033] 111: Fixed base

[0034] 12: Lower chassis

[0035] 13: Column

[0036] 14: Work Platform

[0037] 20: Cutting device

[0038] 21: First Wheel

[0039] 211: First pivot

[0040] 22: Second Rotating Wheel

[0041] 221: Second pivot

[0042] 23: Saw blade

[0043] 24: Drive motor

[0044] 30: Saw blade protection device

[0045] 31: Electromagnetic actuator

[0046] 311: Iron Plate

[0047] 312: Electromagnet

[0048] 32: Actuator rod

[0049] 321: First end

[0050] 322: Second end

[0051] 33: Clamping mechanism

[0052] 331: Force-applying component

[0053] 3311:convex part

[0054] 332: Elastic component

[0055] 333: Linkage component

[0056] 3331: Positioning axis

[0057] 334: Drive shaft

[0058] 335: Clamping jaw

[0059] 3351: Auxiliary clamping component

[0060] 3352: Clamping plane

[0061] 336: Crossbar

[0062] 337: Linkage

[0063] 34: Pivot

[0064] 40: Reset device

[0065] 41: Cylinder block

[0066] 42: Rod

[0067] 50: Tension release device

[0068] 51: Slide

[0069] 52: Electromagnetic components

[0070] 53: Guide column

[0071] 54: Tension components

[0072] 60: Adjustment device

[0073] 61: Rotating component

[0074] 62: Transmission rod

[0075] 63: First bevel gear

[0076] 64: Second bevel gear

[0077] 65: Lifting boom

[0078] 70: Braking device

[0079] 71: Brake mount

[0080] 72: Brake pads

[0081] 73: Friction Plate

[0082] 74: Coil

[0083] 75: Spring

[0084] L: Virtual axis

[0085] L1: First Settings Area

[0086] L2: Second settings area. Detailed Implementation

[0087] To facilitate the explanation of the central idea expressed in the above-mentioned application content section, specific embodiments are now described. Furthermore, to better explain the principles of this utility model, specific language will be used to describe these examples. However, it should be understood that this does not imply that the scope of this utility model is limited.

[0088] In addition, to improve readability, some illustrations omit parts of the components or use imaginary lines for depiction.

[0089] Please see Figures 1 to 10 As shown, this is a food cutting machine with safety protection function in one embodiment of the present invention, which includes a base 10, a cutting device 20, a saw band protection device 30, a reset device 40, a tension release device 50, an adjustment device 60 and a braking device 70.

[0090] The base 10 has an upper chassis 11, a lower chassis 12, and a column 13 connecting the upper chassis 11 and the lower chassis 12. A working platform 14 is provided between the upper chassis 11 and the lower chassis 12 and in front of the column 13.

[0091] A cutting device 20 is mounted on a base 10. The cutting device 20 includes a first rotating wheel 21 and a second rotating wheel 22 that are separated from each other, and a saw blade 23 is arranged around the first rotating wheel 21 and the second rotating wheel 22. Please refer to [link / reference]. Figure 2 and Figure 3 As shown in this embodiment of the invention, a virtual axis L is defined by the center of the first rotating wheel 21 and the center of the second rotating wheel 22, and a first setting area L1 and a second setting area L2 are separated by the virtual axis L. The first rotating wheel 21 is rotatably mounted on the upper chassis 11 with a first rotating shaft 211, and the second rotating wheel 22 is rotatably mounted on the lower chassis 12 with a second rotating shaft 221. The first rotating shaft 211 and the second rotating shaft 221 are respectively orthogonal to the virtual axis L.

[0092] See Figure 2 and Figure 4 As shown, the cutting device 20 also includes a drive motor 24 disposed in the lower housing 12 for transmission connection to the second rotating wheel 22. A fixed seat 111 is provided in the upper housing 11 in the second mounting area L2.

[0093] In this embodiment of the utility model, the saw band protection device 30 consists of two upper housings 11 and lower housings 12 respectively disposed on the base 10. For ease of explanation of the technical principle, the saw band protection device 30 inside the upper housing 11 will be used as the illustrative embodiment below. The saw band protection device 30 has an electromagnetic actuator 31, an actuator rod 32, and a clamping mechanism 33 disposed on the moving path of the saw band 23. The electromagnetic actuator 31 is disposed in the first setting area L1 and operates between an energized position and an de-energized position. The clamping mechanism 33 is disposed in the second setting area L2. One end of the actuator rod 32 is connected to the electromagnetic actuator 31, and the other end passes over the virtual axis L and is connected to the clamping mechanism 33, cooperating with... Figures 3 to 5 As shown, in the energized position, the actuator 32 causes the clamping mechanism 33 to relax relative to the saw blade 23. Figure 3 , Figure 8 and Figure 9 As shown, when in the power-off position, the actuator 32 causes the clamping mechanism 33 to clamp the saw blade 23. Thus, during the operation of the food cutter 100, if the operator accidentally touches the saw blade 23, the food cutter 100 controls the electromagnetic actuator 31 to cut off the power, allowing the clamping mechanism 33 to clamp the saw blade 23, reducing the risk of injury to the operator and providing safety protection. Because the electromagnetic actuator 31 and the clamping mechanism 33 are located in two separate areas, it facilitates the even distribution of weight and structural arrangement of the upper housing 11, making the operation of the food cutter 100 more stable.

[0094] The reset device 40 is provided on the base 10 and located in the first setting area L1. The reset device 40 can cause the actuator 32 to swing and move, so that the actuator 32 and the electromagnetic actuator 31 are reset to a mutually attracted state.

[0095] In this embodiment of the invention, the electromagnetic actuator 31 includes an iron disc 311 coupled to the actuating rod 32 and an electromagnet 312 disposed facing the iron disc 311. In the energized position, the iron disc 311 and the electromagnet 312 are magnetically attracted to each other without gap. In the de-energized position, the iron disc 311 and the electromagnet 312 are separated with a gap. The aforementioned reset device 40 is an electric cylinder, which has a cylinder body 41 and a rod 42 extending from the cylinder body 41. The rod 42 is arranged parallel to the virtual axis L and can push the actuating rod 32, causing the iron disc 311 and the electromagnet 312 to magnetically engage. Thus, when the iron disc 311 and the electromagnet 312 separate due to de-energization (e.g., when...), the electromagnet 311 is magnetically attracted to the electromagnet 312. Figure 8 The operation of the reset device 40 causes the iron plate 311 to move towards the electromagnet 312 and be attracted again (as shown). Figure 4 This facilitates subsequent processing operations.

[0096] An actuating rod 32 is pivotally mounted on the upper housing 11 via a pivot 34. The actuating rod 32 has a first end 321 and a second end 322. The first end 321 is connected to the electromagnetic actuator 31 and is combined with the iron plate 311. The second end 322 passes through the fixed base 111 and is connected to the clamping mechanism 33. The distance from the first end 321 to the pivot 34 is greater than the distance from the second end 322 to the pivot 34.

[0097] like Figures 3 to 5As shown, the clamping mechanism 33 includes a force-applying member 331, a spring member 332, two linkage members 333, two drive shafts 334, two clamping jaws 335, a crossbar 336, and two connecting rods 337. The force-applying member 331 is an inverted T-shaped member erected within the fixed base 111 and has a protrusion 3311 that is in contact with the second end 322 of the actuating rod 32. The spring member 332 is located within the fixed base 111 and abuts against the force-applying member 331, so that the protrusion 3311 of the force-applying member 331 abuts against the second end 322 of the actuating rod 32. The two drive shafts 334 extend through the fixed base 111. The two linkage members 333 are connected to one end of the two drive shafts 334. The two clamping jaws 335 are connected to the other end of the two drive shafts 334 and are located on both sides of the saw blade 23. The two linkage members 333 are linked to the end of the force-applying member 331 away from the spring member 332. When energized, the iron plate 311 at the first end 321 of the actuator 32 is magnetically attracted to the electromagnet 312, causing the actuator 32 to tilt. The force-applying component 331 is lifted by the actuator 32, resulting in a displacement parallel to the virtual axis L. This causes the two linkages 333 to swing, which in turn causes the two drive shafts 334 to release the two clamping jaws 335 relative to the saw blade 23. Conversely, when de-energized, the iron plate 311 separates from the electromagnet 312, and the actuator 32 applies force to the force-applying component 331, causing the force-applying component 331 to clamp the two clamping jaws 335 relative to the saw blade 23.

[0098] In this embodiment of the invention, each of the two linkages 333 includes a positioning shaft 3331 located away from the two transmission shafts 334. One end of each of the two connecting rods 337 is fixed to the force-applying member 331, and the other end of each connecting rod 337 is slidably connected to the crossbar 336. The force-applying member 331 and the crossbar 336 are jointly clamped and connected to the two positioning shafts 3331. Each of the two clamping jaws 335 is provided with an auxiliary clamping member 3351 facing each other. Each of the two auxiliary clamping members 3351 has a clamping plane 3352 to clamp the saw blade 23 so as to stably clamp the saw blade 23 in the power-off position.

[0099] like Figure 6 and cooperate Figure 4 As shown in this embodiment of the invention, the tension release device 50 is disposed on the base 10. When the electromagnetic actuator 31 is in the de-energized position, the tension release device 50 causes the first rotating wheel 21 to displace along the virtual axis L to release the tension of the saw blade 23. The tension release device 50 includes a slide 51, an electromagnetic component 52, and multiple guide posts 53. The slide 51 allows the first rotating shaft 211 to pass through. The slide 51 and the electromagnetic component 52 can attract each other due to the magnetic field effect, so that the saw blade 23 is in a taut state. One end of each guide post 53 is fixed to the slide 51, and the other end extends through the electromagnetic component 52. Furthermore, multiple tension members 54, which are tension springs, are provided between the slide 51 and the upper housing 11.

[0100] When the electromagnetic actuator 31 is in the de-energized position, the electromagnetic component 52 and the slide 51 simultaneously separate due to the disappearance of the magnetic field, forcing the slide 51 to move downward (the tensioning component 54 pulls the slide 51 down), thereby relaxing the saw blade 23. In this way, during operation, in addition to the aforementioned protective action of the saw blade 23 being clamped, the tension of the saw blade 23 can also be released by the tension release device 50, making the saw blade 23 slack, thereby preventing the saw blade 23 from instantly cutting the worker's hand.

[0101] like Figure 1 and Figure 4 As shown, the adjustment device 60 includes a rotating component 61 exposed in the upper housing 11, a transmission rod 62, a first bevel gear 63, a second bevel gear 64, and a lifting rod 65. One end of the transmission rod 62 is connected to the rotating component 61, and the other end is connected to the first bevel gear 63. The second bevel gear 64 meshes orthogonally with the first bevel gear 63. One end of the lifting rod 65 is axially mounted on the second bevel gear 64, and the other end is connected to the electromagnetic component 52. The lifting rod 65 can magnetically engage the electromagnetic component 52 with the slide block 51 along the virtual axis L as the second bevel gear 64 rotates. Thus, by operating the adjustment device 60, the tension of the saw blade 23 can be adjusted to the working state to facilitate subsequent processing operations.

[0102] like Figure 7 and Figure 10 As shown, when the braking device 70 is in the de-energized position, it controls the first rotating wheel 21 to stop rotating. The braking device 70 includes a brake seat 71 sleeved on the first rotating shaft 211, a brake pad 72 fixed to the first rotating shaft 211 and located inside the brake seat 71, a friction pad 73 slidably sleeved on one side of the brake pad 72, a coil 74 disposed on the brake seat 71 and located on the back side of the friction pad 73, and two springs 75 disposed on the brake seat 71 and normally pushing the friction pad 73 toward the brake pad 72. The friction pad 73 is made of magnetic material.

[0103] When coil 74 is energized, friction plate 73 is attracted by coil 74, preventing friction plate 73 from contacting brake plate 72 and allowing first shaft 211 to rotate freely. When coil 74 is de-energized, two springs 75 cause friction plate 73 to contact brake plate 72, preventing first shaft 211 from rotating. Thus, when electromagnetic actuator 31 is in the de-energized position, coil 74 is immediately and synchronously de-energized, causing friction contact between friction plate 73 and brake plate 72 to stop first shaft 211 from rotating, preventing saw blade 23 from shifting and causing injury to workers.

[0104] In summary, this utility model, through the installation of the saw band protection device 30, the tension release device 50, and the braking device 70, ensures that when a worker's hand accidentally touches the saw band 23 during operation, the saw band 23 can be immediately clamped, the tension of the saw band 23 is relaxed, and the saw band 23 stops its displacement, thereby achieving multiple safety protection effects.

[0105] Although this utility model is described with reference to a preferred embodiment, those skilled in the art can make various modifications without departing from the spirit and scope of this utility model. The embodiments described above are merely illustrative of this utility model and are not intended to limit its scope.

Claims

1. A food cutting machine with safety protection function, characterized in that, It comprises: a base; a cutting device arranged on the base, the cutting device comprising a first rotating wheel and a second rotating wheel arranged separately, a saw belt arranged around the first rotating wheel and the second rotating wheel, and a virtual axis defined by the center of the first rotating wheel and the center of the second rotating wheel, the virtual axis dividing a first arrangement area and a second arrangement area; a saw belt protection device arranged on the base, the saw belt protection device comprising an electromagnetic actuator, an actuating rod, and a clamping mechanism arranged on the moving path of the saw belt, the electromagnetic actuator being arranged in the first arrangement area and being capable of moving between an energized position and a de-energized position, the clamping mechanism being arranged in the second arrangement area, one end of the actuating rod being connected to the electromagnetic actuator and the other end of the actuating rod being connected to the clamping mechanism through the virtual axis, the actuating rod promoting the clamping mechanism to be in a relaxed state relative to the saw belt when the electromagnetic actuator is in the energized position, and the actuating rod promoting the clamping mechanism to clamp the saw belt when the electromagnetic actuator is in the de-energized position; and a reset device arranged on the base and located in the first arrangement area, the reset device being capable of swinging the actuating rod to reset the actuating rod and the electromagnetic actuator to a mutual attraction state.

2. The food cutting machine with safety function according to claim 1, characterized in that, It further comprises a tension release device arranged on the base, the tension release device promoting the first rotating wheel to move along the virtual axis when the electromagnetic actuator is in the de-energized position.

3. The food cutting machine with safety function according to claim 2, wherein, The base comprises an upper cabinet, a lower cabinet, and a stand connected to the upper cabinet and the lower cabinet, the first rotating wheel being arranged in the upper cabinet and rotating around a first rotating shaft, and the second rotating wheel being arranged in the lower cabinet and rotating around a second rotating shaft; the tension release device comprises a sliding seat and an electromagnetic component, the first rotating shaft penetrating the sliding seat, and the sliding seat and the electromagnetic component being capable of being mutually attracted due to magnetic field effect, the electromagnetic component and the sliding seat being in a separated state due to the disappearance of the magnetic field when the electromagnetic actuator is in the de-energized position.

4. The food cutting machine with safety function according to claim 3, wherein, The tension release device comprises a plurality of guide columns, one end of each of the guide columns being fixedly arranged on the sliding seat and the other end of each of the guide columns penetrating the electromagnetic component; a plurality of tension members are arranged between the sliding seat and the upper cabinet.

5. The food cutting machine having a safety function according to claim 3, wherein, It further comprises an adjusting device comprising a rotating member exposed to the upper cabinet, a transmission rod, a first bevel gear, a second bevel gear, and a lifting rod, one end of the transmission rod being combined with the rotating member, the other end of the transmission rod being combined with the first bevel gear, the second bevel gear being orthogonal to the first bevel gear, one end of the lifting rod being arranged in the second bevel gear, and the other end of the lifting rod being combined with the electromagnetic component, the lifting rod being capable of magnetically attracting the electromagnetic component and the sliding seat along the virtual axis direction with the rotation of the second bevel gear.

6. The food cutting machine with safety function according to claim 5, wherein, The actuating rod is pivotally arranged in the upper cabinet through a pivot, the actuating rod comprising a first end and a second end, the first end being connected to the electromagnetic actuator, and the second end being connected to the clamping mechanism, the distance from the first end to the pivot being greater than the distance from the second end to the pivot.

7. The food cutting machine with safety function according to claim 6, wherein, The upper machine case is provided with a fixing seat in the second setting area. The clamping mechanism comprises a force applying member, a spring member, two connecting members, two transmission shafts and two clamping jaws. The second end of the actuating rod penetrates the fixing seat. The force applying member is provided in the fixing seat and has a protrusion in contact with the second end. The spring member is provided in the fixing seat and is held on the force applying member, so that the force applying member abuts against the second end. The two transmission shafts penetrate the fixing seat. The two connecting members are connected to one end of the two transmission shafts. The two clamping jaws are connected to the other end of the two transmission shafts and are located on both sides of the sawing belt. The two connecting members and the end of the force applying member away from the spring member have a connecting relationship. The force applying member can be lifted by the actuating rod to generate displacement parallel to the direction of the virtual axis, so that the two connecting members have a swinging relationship, causing the two transmission shafts to connect the two clamping jaws to generate a clamping action relative to the sawing belt.

8. The food cutting machine with safety function according to claim 7, characterized in that, The clamping mechanism comprises a cross rod and two connecting rods. The two connecting members each comprise a positioning shaft away from the two transmission shafts. One end of the two connecting rods is fixed to the force applying member. The other end of the two connecting rods is slidingly connected to the cross rod. The force applying member and the cross rod are jointly clamped to the two positioning shafts.

9. The food cutting machine having a safety function according to claim 1, wherein, The electromagnetic actuator comprises an iron disc combined with the actuating rod and an electromagnet arranged face to face with the iron disc. The reset device is an electric cylinder having a cylinder body and a rod body extending from the cylinder body. The rod body is arranged parallel to the direction of the virtual axis and can push the actuating rod, so that the iron disc and the electromagnet are magnetically attracted and engaged with each other.

10. The food cutting machine having a safety function according to claim 3, wherein, A brake device is further included to control the first rotating wheel to stop rotating at the power-off position. The brake device comprises a brake seat sleeved on the first rotating shaft, a brake pad sleeved on the first rotating shaft and located in the brake seat, a friction plate slidingly sleeved on one side of the brake pad, a coil arranged in the brake seat and located on the back side of the friction plate, and two springs arranged in the brake seat and normally pushing the friction plate towards the brake pad. When the coil is powered, the friction plate is attracted by the coil, so that the friction plate does not contact the brake pad, allowing the first rotating shaft to rotate freely. When the coil is powered off, the two springs make the friction plate contact the brake pad, so that the first rotating shaft cannot rotate.