A continuous loading and unloading device for boxed fresh food

Abstract

The present invention discloses a continuous loading and unloading device for boxed fresh food, which belongs to the technical field of loading and unloading fresh food, and includes a position adjustment structure, a material bearing assembly and an automatic limit structure. The position adjustment structure is provided with a material bearing assembly, and the material bearing assembly is provided with an automatic limit structure. The material bearing assembly includes a loading and unloading assembly and a transmission assembly, and the automatic limit structure includes a lifting and lowering adjustment assembly and a flip assembly. The present invention automatically determines the weight of the goods to be loaded and unloaded at a single time by providing the material bearing assembly and the automatic limit structure, thereby correspondingly limiting the height of the goods, effectively protecting the integrity of the fresh food while ensuring the loading and unloading efficiency, and reducing the possibility of damage to the fresh food, and effectively solving the problem that the loading and unloading devices currently used on the market cannot limit the weight and height of the goods to be loaded and unloaded at a single time, resulting in the goods at the bottom layer being easily damaged due to greater pressure during the loading and unloading process.

Description

Technical Field

[0001] The invention belongs to the technical field of fresh food loading and unloading, and specifically refers to a continuous loading and unloading device for boxed fresh food. Background Art

[0002] Fresh food refers to primary products that have not been cooked or processed, and are only kept fresh and simply arranged for sale. The characteristics and storage conditions of fresh goods are basically the same, and they need to be kept fresh, refrigerated, and frozen. With the continuous expansion of the fresh food market, the requirements for the transportation and storage of fresh food are getting higher and higher. Fresh food is easy to rot and has a short shelf life.

[0003] In actual situations, fresh goods such as vegetables, fruits, and aquatic products will break when subjected to greater pressure. Existing fresh food loading and unloading equipment does not have a corresponding limit structure. In order to improve efficiency, workers will pile up the goods higher when loading and unloading fresh products. The goods at the bottom are subjected to excessive pressure and are easily damaged, causing unnecessary losses. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a continuous loading and unloading device for boxed fresh food. By setting a material carrying component and an automatic limiting structure, the weight of the goods in a single loading and unloading is automatically determined, so as to impose corresponding restrictions on the height of the goods. While ensuring the loading and unloading efficiency, the integrity of the fresh food is effectively protected and the possibility of damage to the fresh food is reduced. This effectively solves the problem that the loading and unloading devices currently used on the market cannot limit the weight and height of the goods in a single loading and unloading, resulting in the goods on the bottom layer being easily damaged due to the greater pressure during the loading and unloading process.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a continuous loading and unloading device for boxed fresh food, including a position adjustment structure, a material carrying component and an automatic limiting structure, the position adjustment structure is provided with a material carrying component, the material carrying component is provided with an automatic limiting structure, the material carrying component includes a loading and unloading component and a transmission component, and the automatic limiting structure includes a lifting and lowering adjustment component and a flipping component.

[0006] Furthermore, the loading and unloading assembly includes a lifting plate, a load-bearing plate, a vertical telescopic spring and a connecting rack. The lifting plate is slidably connected to a position adjustment structure. A lifting slot is provided on the lifting plate. One end of the load-bearing plate close to the lifting plate is slidably connected in the lifting slot. One end of the vertical telescopic spring is fixedly connected to the lifting plate, and the other end of the vertical telescopic spring is fixedly connected to the load-bearing plate. The vertical telescopic spring is arranged in the lifting slot, and the connecting rack is fixedly connected to the load-bearing plate, so that the device can complete the loading and unloading operations of fresh food.

[0007] Furthermore, the transmission assembly includes a support plate, a rotating sleeve, a lifting drive rod, a guide rod, a support spring, a drive gear, a sliding plate, a connecting tooth, a transmission rod, a sliding ring, a rotating shaft, a power gear, a drive bevel gear, a fixed guide rail and a horizontal telescopic spring. The support plate is fixedly connected to the lifting plate, the rotating sleeve passes through and is rotatably connected to the support plate, the lifting drive rod is slidably connected to the rotating sleeve, the guide rod is fixedly connected to the lifting drive rod, the guide rod passes through and is slidably connected to the support plate, one end of the support spring is fixedly connected to the lifting drive rod, the other end of the support spring is fixedly connected to the support plate, the drive gear is fixedly connected to the rotating sleeve, and the sliding plate The lifting plate is slidably connected, the connecting tooth is fixedly connected to the sliding plate, the driving gear is meshed with the connecting tooth, the transmission rod is fixedly connected to the sliding plate, the sliding ring is fixedly connected to the end of the transmission rod away from the sliding plate, the rotating shaft passes through and is rotatably connected to the sliding ring, the power gear is fixedly connected to one end of the rotating shaft, the driving bevel gear is fixedly connected to the other end of the rotating shaft, the fixed guide rail is fixedly connected to the lifting plate, the sliding ring is slidably connected in the fixed guide rail, one end of the horizontal telescopic spring is fixedly connected to the sliding ring, and the other end of the horizontal telescopic spring is fixedly connected to the fixed guide rail, so that the structural change of the material carrying component can provide driving force for the automatic limiting structure.

[0008] Furthermore, the lifting and adjusting assembly includes a driven bevel gear, a rotating shaft, a driving pulley, a driven pulley, a connecting belt, a fixed frame, a driving shaft, a driving gear, a lifting frame, a docking groove and a docking tooth, the driven bevel gear is meshed and connected to the material carrying assembly, the rotating shaft is fixedly connected to the driven bevel gear, the driving pulley is fixedly connected to the end of the rotating shaft away from the driven bevel gear, the driven pulley is arranged above the driving pulley, a connecting belt is connected between the driving pulley and the driven pulley, the fixed frame is fixedly connected to the material carrying assembly, the driving shaft passes through and is fixedly connected to the driven pulley, the driving gear is fixedly connected to the end of the driving shaft away from the driven pulley, the lifting frame is slidably connected to the fixed frame, a docking groove is provided on the lifting frame, and the docking tooth is fixedly connected to the inner surface of the docking groove.

[0009] Furthermore, the flipping assembly includes a flipping limit plate, a fixed rod, a torsion spring, a fixed gear, a lifting rail and a vertical rack. The flipping limit plate is arranged on one side of the lifting frame, the fixed rod passes through and is fixedly connected to the flipping limit plate, one end of the torsion spring is fixedly connected to the lifting frame, the other end of the torsion spring is fixedly connected to the fixed rod, the fixed gear is fixedly connected to the fixed rod, the lifting rail is fixedly connected to the material carrying assembly, and the vertical rack is fixedly connected to the lifting rail, so that the automatic limiting structure can limit the height of fresh food during loading and unloading.

[0010] Furthermore, the position adjustment structure includes a device base plate, a universal wheel, a fixed screw, a counterweight, a locking nut, a fixed vertical plate, a drive motor, a rotating screw and a reinforcing rod, the universal wheel is fixedly connected to the bottom surface of the device base plate, the fixed screw is fixedly connected to the device base plate, the counterweight is slidably connected to the fixed screw, the locking nut is threadably connected to the fixed screw, the fixed vertical plate is fixedly connected to the device base plate, the drive motor is fixedly connected to the fixed vertical plate, the rotating screw is fixedly connected to the output end of the drive motor, one end of the reinforcing rod is fixedly connected to the fixed vertical plate, and the other end of the reinforcing rod is fixedly connected to the device base plate.

[0011] Furthermore, the lifting plate is slidably connected to the fixed vertical plate, the lifting plate is threadedly connected to the rotating screw, and the inner surface of the rotating sleeve is provided with a spiral groove structure.

[0012] Furthermore, the connecting rack is meshed and connected to the power gear, and the fixed gear is meshed and connected to the vertical rack.

[0013] Furthermore, the driving gear is arranged inside the docking groove, the driving gear is meshed and connected with the docking teeth, the driven bevel gear is meshed and connected with the driving bevel gear, and the rotating shaft passes through and is rotatably connected with the lifting plate.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows:

[0015] In order to solve the problem that the loading and unloading devices currently used on the market cannot limit the weight and height of the goods loaded and unloaded at a time, resulting in the goods at the bottom being easily damaged due to the greater pressure during the loading and unloading process, the present invention automatically determines the weight of the goods loaded and unloaded at a time by setting a material bearing component and an automatic limit structure, thereby limiting the height of the goods accordingly, effectively protecting the integrity of fresh food while ensuring the loading and unloading efficiency, and reducing the possibility of damage to fresh food;

[0016] Among them, the material bearing assembly includes a bearing plate, which will gradually drop after being compressed. A connecting rack is arranged on the bearing plate. During the displacement process, the bearing plate can drive the power gear to rotate through the connecting rack, thereby providing power for the operation of the automatic limit structure. At the same time, the bearing plate can trigger the lifting drive rod, thereby separating the power gear from the connecting rack, so as to realize the full automatic control of the automatic limit structure.

[0017] In addition, the automatic limiting structure includes a lifting frame and a flip limiting plate. The lifting frame can move upward during the descending process of the load-bearing plate, so that the flip limiting plate can rotate under the joint action of the fixed gear and the vertical rack. After the power gear is separated from the connecting rack, the flip limiting plate remains in a horizontal state and moves downward to the top of the cargo, thereby playing an auxiliary limiting role on the cargo through the friction between the cargo and the flip limiting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a continuous loading and unloading device for boxed fresh food proposed by the present invention Figure 1 ;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of a continuous loading and unloading device for boxed fresh food proposed by the present invention Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the explosion structure of a continuous loading and unloading device for boxed fresh food proposed by the present invention;

[0021] Figure 4 Schematic diagram of partial structural explosion of material-bearing components Figure 1 ;

[0022] Figure 5 Schematic diagram of partial structural explosion of material-bearing components Figure 2 ;

[0023] Figure 6 Schematic diagram of partial structural explosion of material-bearing components Figure 3 ;

[0024] Figure 7 is a cross-sectional view of a rotating sleeve;

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the automatic limiting structure;

[0026] Fig. 9 It is a schematic diagram of a partial three-dimensional structure of the automatic limiting structure;

[0027] Fig.10 Schematic diagram of partial explosion structure of automatic limiting structure.

[0028] Among them, 1. Position adjustment structure; 101. Device bottom plate; 102. Universal wheel; 103. Fixed screw; 104. Counterweight; 105. Locking nut; 106. Fixed vertical plate; 107. Driving motor; 108. Rotating screw; 109. Reinforcement rod; 2. Material bearing assembly; 201. Lifting plate; 202. Lifting slide; 203. Bearing plate; 204. Vertical telescopic spring; 205. Connecting rack; 206. Support plate; 207. Rotating sleeve; 208. Lifting drive rod; 209. Guide rod; 210. Support spring; 211. Driving gear; 212. Sliding plate; 213. Connecting clamping teeth; 214. Transmission rod; 215, sliding ring; 216, rotating shaft; 217, power gear; 218, driving bevel gear; 219, fixed guide rail; 220, horizontal telescopic spring; 3, automatic limiting structure; 301, driven bevel gear; 302, rotating shaft; 303, driving pulley; 304, driven pulley; 305, connecting belt; 306, fixed frame; 307, driving shaft; 308, driving gear; 309, lifting frame; 310, docking groove; 311, docking tooth; 312, flip limit plate; 313, fixed rod; 314, torsion spring; 315, fixed gear; 316, lifting track; 317, vertical rack.

[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0032] like Figure 1-Figure 10As shown, the present invention proposes a continuous loading and unloading device for boxed fresh food, including a position adjustment structure 1, a material carrying component 2 and an automatic limiting structure 3. The position adjustment structure 1 is provided with the material carrying component 2, and the material carrying component 2 is provided with the automatic limiting structure 3. The material carrying component 2 includes a loading and unloading component and a transmission component, and the automatic limiting structure 3 includes a lifting adjustment component and a flipping component.

[0033] The loading and unloading components include a lifting plate 201, a supporting plate 203, a vertical telescopic spring 204 and a connecting rack 205. The lifting plate 201 is slidably connected to the position adjustment structure 1. A lifting slot 202 is provided on the lifting plate 201. One end of the supporting plate 203 close to the lifting plate 201 is slidably connected in the lifting slot 202. One end of the vertical telescopic spring 204 is fixedly connected to the lifting plate 201. The other end of the vertical telescopic spring 204 is fixedly connected to the supporting plate 203. The vertical telescopic spring 204 is arranged in the lifting slot 202. The connecting rack 205 is fixedly connected to the supporting plate 203.

[0034] The transmission assembly includes a support plate 206, a rotating sleeve 207, a lifting drive rod 208, a guide rod 209, a support spring 210, a driving gear 211, a sliding plate 212, a connecting tooth 213, a transmission rod 214, a sliding ring 215, a rotating shaft 216, a power gear 217, a driving bevel gear 218, a fixed guide rail 219 and a horizontal telescopic spring 220. The support plate 206 is fixedly connected to the lifting plate 201, the rotating sleeve 207 penetrates and is rotatably connected to the support plate 206, the lifting drive rod 208 is slidably connected in the rotating sleeve 207, the guide rod 209 is fixedly connected to the lifting drive rod 208, the guide rod 209 penetrates and is slidably connected to the support plate 206, one end of the support spring 210 is fixedly connected to the lifting drive rod 208, and the other end of the support spring 210 is fixedly connected to the support plate 206. The movable gear 211 is fixedly connected to the rotating sleeve 207, the sliding plate 212 is slidably connected to the lifting plate 201, the connecting tooth 213 is fixedly connected to the sliding plate 212, the driving gear 211 is meshedly connected to the connecting tooth 213, the transmission rod 214 is fixedly connected to the sliding plate 212, the sliding ring 215 is fixedly connected to the end of the transmission rod 214 away from the sliding plate 212, the rotating shaft 216 passes through and is rotatably connected to the sliding ring 215, the power gear 217 is fixedly connected to one end of the rotating shaft 216, the driving bevel gear 218 is fixedly connected to the other end of the rotating shaft 216, the fixed guide rail 219 is fixedly connected to the lifting plate 201, the sliding ring 215 is slidably connected in the fixed guide rail 219, one end of the horizontal telescopic spring 220 is fixedly connected to the sliding ring 215, and the other end of the horizontal telescopic spring 220 is fixedly connected to the fixed guide rail 219.

[0035] The lifting and adjusting assembly includes a driven bevel gear 301, a rotating shaft 302, a driving pulley 303, a driven pulley 304, a connecting belt 305, a fixed frame 306, a driving shaft 307, a driving gear 308, a lifting frame 309, a docking groove 310 and a docking tooth 311. The driven bevel gear 301 is meshed and connected to the material carrying assembly 2, the rotating shaft 302 is fixedly connected to the driven bevel gear 301, the driving pulley 303 is fixedly connected to the end of the rotating shaft 302 away from the driven bevel gear 301, and the driven pulley 304 is fixedly connected to the end of the rotating shaft 302 away from the driven bevel gear 301. It is arranged above the driving pulley 303, a connecting belt 305 is connected between the driving pulley 303 and the driven pulley 304, the fixed frame 306 is fixedly connected to the material carrying component 2, the driving shaft 307 passes through and is fixedly connected to the driven pulley 304, the driving gear 308 is fixedly connected to the end of the driving shaft 307 away from the driven pulley 304, the lifting frame 309 is slidably connected to the fixed frame 306, and a docking groove 310 is opened on the lifting frame 309, and the docking tooth 311 is fixedly connected to the inner surface of the docking groove 310.

[0036] The flipping assembly includes a flipping limit plate 312, a fixed rod 313, a torsion spring 314, a fixed gear 315, a lifting rail 316 and a vertical rack 317. The flipping limit plate 312 is arranged on one side of the lifting frame 309, the fixed rod 313 passes through and is fixedly connected to the flipping limit plate 312, one end of the torsion spring 314 is fixedly connected to the lifting frame 309, the other end of the torsion spring 314 is fixedly connected to the fixed rod 313, the fixed gear 315 is fixedly connected to the fixed rod 313, the lifting rail 316 is fixedly connected to the material carrying assembly 2, and the vertical rack 317 is fixedly connected to the lifting rail 316.

[0037] The position adjustment structure 1 includes a device base plate 101, a universal wheel 102, a fixed screw 103, a counterweight 104, a locking nut 105, a fixed vertical plate 106, a drive motor 107, a rotating screw 108 and a reinforcing rod 109. The universal wheel 102 is fixedly connected to the bottom surface of the device base plate 101, the fixed screw 103 is fixedly connected to the device base plate 101, the counterweight 104 is slidably connected to the fixed screw 103, the locking nut 105 is threadedly connected to the fixed screw 103, the fixed vertical plate 106 is fixedly connected to the device base plate 101, the drive motor 107 is fixedly connected to the fixed vertical plate 106, the rotating screw 108 is fixedly connected to the output end of the drive motor 107, one end of the reinforcing rod 109 is fixedly connected to the fixed vertical plate 106, and the other end of the reinforcing rod 109 is fixedly connected to the device base plate 101.

[0038] The lifting plate 201 is slidably connected to the fixed vertical plate 106 , and the lifting plate 201 is threadedly connected to the rotating screw 108 . The inner surface of the rotating sleeve 207 is provided with a spiral groove structure. The connecting rack 205 is meshedly connected to the power gear 217 , and the fixed gear 315 is meshedly connected to the vertical rack 317 .

[0039] The driving gear 308 is disposed inside the docking groove 310 , the driving gear 308 is meshed with the docking teeth 311 , the driven bevel gear 301 is meshed with the driving bevel gear 218 , and the rotating shaft 302 penetrates and is rotatably connected to the lifting plate 201 .

[0040] When in use, the staff moves the device to the place where the goods need to be loaded and unloaded through the universal wheel 102, and starts to move the goods to the load-bearing plate 203 for stacking. As the goods are stacked on the load-bearing plate 203, the gravity on the load-bearing plate 203 increases and moves downward along the lifting slide 202 to squeeze the vertical telescopic spring 204. Since the goods to be loaded and unloaded are fresh, as the goods are stacked on the load-bearing plate 203, the pressure on the goods at the bottom of the load-bearing plate 203 will gradually increase. During the downward displacement of the load-bearing plate 203, the power gear 217 is driven to rotate through the connected rack 205, and the power gear 217 is driven by the rotating shaft 2 16 drives the driving bevel gear 218 to rotate synchronously, the driving bevel gear 218 drives the driven bevel gear 301 to rotate, the driven bevel gear 301 drives the driving pulley 303 to rotate through the rotating shaft 302, the driving pulley 303 drives the driven pulley 304 to rotate in the same direction through the connecting belt 305, the driven pulley 304 drives the driving shaft 307 to rotate, the driving shaft 307 drives the driving gear 308 to rotate inside the docking groove 310, the docking groove 310 rotates and drives the lifting frame 309 to move upward through the docking tooth 311, and the lifting frame 309 drives the flip limit plate 312 to move upward synchronously.

[0041] The flip limit plate 312 moves upward with the lifting frame 309 until the fixed gear 315 engages with the vertical rack 317, and then the flip limit plate 312 continues to move upward. At this time, the fixed gear 315 begins to rotate under the action of the vertical rack 317. When the flip limit plate 312 rotates, a limiting structure will be formed. At this time, the staff cannot stack goods on the supporting plate 203, ensuring that the squeezing force on the bottom layer of fresh food is within an acceptable range, thereby reducing the possibility of damage to the fresh food.

[0042] When the carrying plate 203 moves to the bottom of the lifting slide 202, the lifting drive rod 208 overcomes the support force provided by the support spring 210 under the pressure of the carrying plate 203 and moves downward. As the lifting drive rod 208 moves downward, the rotating sleeve 207 rotates under the drive of the lifting drive rod 208, and the lifting drive rod 208 drives the driving gear 211 to rotate. The driving gear 211 drives the sliding plate 212 to move through the connecting gear 213, and the sliding plate 212 drives the transmission rod 214. The transmission rod 214 drives the sliding ring 215 to move along the fixed guide rail 219, so that the sliding ring 215 squeezes the horizontal telescopic spring 220. At this time, the power gear 217 is separated from the connecting rack 205, and the driving bevel gear 218 is separated from the driven bevel gear 301. The flip limit plate 312 remains in a horizontal state under the action of the torsion spring 314. After losing the supporting force, the lifting frame 309 moves downward under the action of its own weight, so that the flip limit plate 312 moves to the top of the cargo to assist in limiting the cargo.

[0043] The staff moves the device to the designated unloading area and starts the drive motor 107. The drive motor 107 drives the rotating screw 108 to rotate, so that the lifting plate 201 moves downward as a whole. Then the staff unloads the goods on the carrying plate 203. In the process of gradually removing the goods, the carrying plate 203 is gradually reset under the action of the vertical telescopic spring 204, and the lifting drive rod 208 is reset downward under the action of the supporting spring 210. At the same time, the sliding ring 215 is reset under the action of the horizontal telescopic spring 220. At this time, the sliding plate 212 is reset on the rotating sleeve 20 7 and the driving gear 211 are reset under the joint action, so that the power gear 217 is re-engaged with the connecting rack 205, and the driving bevel gear 218 is re-engaged with the driven bevel gear 301. During the resetting process of the carrying plate 203, the lifting frame 309 is driven to move downward and reset. At this time, the force exerted on the flip limit plate 312 is greater than the force exerted on the torsion spring 314. The flip limit plate 312 is reset to a vertical state under the action of the torsion spring 314. The above is the overall workflow of the present invention. You can repeat this step when you use it next time. The actual operation process is very simple and easy.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0046] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A continuous loading and unloading device for boxed fresh food, characterized in that: The invention comprises a position adjustment structure (1), a material carrying component (2) and an automatic position limiting structure (3), wherein the position adjustment structure (1) is provided with a material carrying component (2), the material carrying component (2) is provided with an automatic position limiting structure (3), the material carrying component (2) comprises a loading and unloading component and a transmission component, and the automatic position limiting structure (3) comprises a lifting and lowering adjustment component and a turning component.

2. A continuous loading and unloading device for boxed fresh food according to claim 1, characterized in that: The loading and unloading assembly comprises a lifting plate (201), a bearing plate (203), a vertical telescopic spring (204) and a connecting rack (205); the lifting plate (201) is slidably connected to a position adjustment structure (1); a lifting slot (202) is provided on the lifting plate (201); one end of the bearing plate (203) close to the lifting plate (201) is slidably connected in the lifting slot (202); one end of the vertical telescopic spring (204) is fixedly connected to the lifting plate (201); the other end of the vertical telescopic spring (204) is fixedly connected to the bearing plate (203); the vertical telescopic spring (204) is arranged in the lifting slot (202); and the connecting rack (205) is fixedly connected to the bearing plate (203).

3. The continuous loading and unloading device for boxed fresh food according to claim 2, characterized in that: The transmission assembly comprises a support plate (206), a rotating sleeve (207), a lifting drive rod (208), a guide rod (209), a support spring (210), a driving gear (211), a sliding plate (212), a connecting tooth (213), a transmission rod (214), a sliding ring (215), a rotating shaft (216), a power gear (217), a driving bevel gear (218), a fixed guide rail (219) and a horizontal telescopic spring (220). The support plate (206) is fixedly connected to the lifting plate (201), the rotating sleeve (207) passes through and is rotatably connected to the support plate (206), the lifting drive rod (208) is slidably connected in the rotating sleeve (207), the guide rod (209) is fixedly connected to the lifting drive rod (208), the guide rod (209) passes through and is slidably connected to the support plate (206), one end of the support spring (210) is fixedly connected to the lifting drive rod (208), and the other end of the support spring (210) is fixedly connected to the support plate (206), The gear (211) is fixedly connected to the rotating sleeve (207), the sliding plate (212) is slidably connected to the lifting plate (201), the connecting tooth (213) is fixedly connected to the sliding plate (212), the driving gear (211) is meshedly connected to the connecting tooth (213), the transmission rod (214) is fixedly connected to the sliding plate (212), the sliding ring (215) is fixedly connected to an end of the transmission rod (214) away from the sliding plate (212), and the rotating shaft (216) passes through and is rotatably connected to the sliding ring (215), the power gear (217) is fixedly connected to one end of the rotating shaft (216), the driving bevel gear (218) is fixedly connected to the other end of the rotating shaft (216), the fixed guide rail (219) is fixedly connected to the lifting plate (201), the sliding ring (215) is slidably connected in the fixed guide rail (219), one end of the horizontal telescopic spring (220) is fixedly connected to the sliding ring (215), and the other end of the horizontal telescopic spring (220) is fixedly connected to the fixed guide rail (219).

4. The continuous loading and unloading device for boxed fresh food according to claim 3, characterized in that: The lifting and adjusting assembly comprises a driven bevel gear (301), a rotating shaft (302), a driving pulley (303), a driven pulley (304), a connecting belt (305), a fixed frame (306), a driving shaft (307), a driving gear (308), a lifting frame (309), a docking groove (310) and a docking tooth (311); the driven bevel gear (301) is meshedly connected to the material carrying assembly (2); the rotating shaft (302) is fixedly connected to the driven bevel gear (301); the driving pulley (303) is fixedly connected to an end of the rotating shaft (302) away from the driven bevel gear (301); and the driven pulley (304) is fixedly connected to the driven bevel gear (301). The driving belt (303) is arranged above the driving belt pulley (303), a connecting belt (305) is connected between the driving belt pulley (303) and the driven belt pulley (304), the fixed frame (306) is fixedly connected to the material carrying component (2), the driving shaft (307) passes through and is fixedly connected to the driven belt pulley (304), the driving gear (308) is fixedly connected to one end of the driving shaft (307) away from the driven belt pulley (304), the lifting frame (309) is slidably connected to the fixed frame (306), a docking groove (310) is provided on the lifting frame (309), and the docking tooth (311) is fixedly connected to the inner surface of the docking groove (310).

5. The continuous loading and unloading device for boxed fresh food according to claim 4, characterized in that: The flip assembly comprises a flip limit plate (312), a fixed rod (313), a torsion spring (314), a fixed gear (315), a lifting track (316) and a vertical rack (317); the flip limit plate (312) is arranged on one side of the lifting frame (309); the fixed rod (313) passes through and is fixedly connected to the flip limit plate (312); one end of the torsion spring (314) is fixedly connected to the lifting frame (309); the other end of the torsion spring (314) is fixedly connected to the fixed rod (313); the fixed gear (315) is fixedly connected to the fixed rod (313); the lifting track (316) is fixedly connected to the material carrying assembly (2); and the vertical rack (317) is fixedly connected to the lifting track (316).

6. The continuous loading and unloading device for boxed fresh food according to claim 5, characterized in that: The position adjustment structure (1) comprises a device bottom plate (101), a universal wheel (102), a fixed screw rod (103), a counterweight block (104), a locking nut (105), a fixed vertical plate (106), a driving motor (107), a rotating screw rod (108) and a reinforcing rod (109), wherein the universal wheel (102) is fixedly connected to the bottom surface of the device bottom plate (101), the fixed screw rod (103) is fixedly connected to the device bottom plate (101), and the counterweight block (104) is slidably connected to the fixed vertical plate (106). The fixing screw (103) is provided, the locking nut (105) is threadedly connected to the fixing screw (103), the fixing vertical plate (106) is fixedly connected to the device bottom plate (101), the driving motor (107) is fixedly connected to the fixing vertical plate (106), the rotating screw (108) is fixedly connected to the output end of the driving motor (107), one end of the reinforcing rod (109) is fixedly connected to the fixing vertical plate (106), and the other end of the reinforcing rod (109) is fixedly connected to the device bottom plate (101).

7. The continuous loading and unloading device for boxed fresh food according to claim 6, characterized in that: The lifting plate (201) is slidably connected to the fixed vertical plate (106), the lifting plate (201) is threadedly connected to the rotating screw rod (108), and the inner surface of the rotating sleeve (207) is provided with a spiral groove structure.

8. The continuous loading and unloading device for boxed fresh food according to claim 7, characterized in that: The connecting rack (205) is meshedly connected to the power gear (217), and the fixed gear (315) is meshedly connected to the vertical rack (317).

9. The continuous loading and unloading device for boxed fresh food according to claim 8, characterized in that: The driving gear (308) is disposed inside the docking groove (310), the driving gear (308) is meshedly connected to the docking latch gear (311), the driven bevel gear (301) is meshedly connected to the driving bevel gear (218), and the rotating shaft (302) passes through and is rotatably connected to the lifting plate (201).

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