Fruit box fixing device and fruit and vegetable box turnover machine

Abstract

The utility model relates to fruit and vegetable sorting technical field discloses a fruit box fixing device and fruit and vegetable turnover machine, and fruit box fixing device includes first mounting bracket, lifting assembly and snatchs subassembly, lifting assembly is established on first mounting bracket, snatchs subassembly includes second mounting bracket, first drive unit, first jaw and second jaw, second mounting bracket is along vertical direction and is established on first mounting bracket, and lifting assembly and second mounting rack transmission are connected to drive second mounting rack along vertical direction and lift, one end of first jaw and one end of second jaw are respectively hinged and established on second mounting rack, and first drive unit is respectively and first jaw, second jaw transmission is connected to drive the other end of first jaw and the other end of second jaw is close to each other or away from each other, first jaw includes first claw part, and second jaw includes second claw part, and first claw part and second claw part are towards preset station. Can reduce the damage to fruit box, still can reduce the operation power of first drive unit.

Description

Technical Field

[0001] This utility model relates to the field of fruit and vegetable sorting technology, and in particular to a fruit box fixing device and a fruit and vegetable turning machine. Background Technology

[0002] After fruits and vegetables are picked from the orchard, they are collected and placed in fruit crates. For subsequent processes such as sorting and packaging, a conveyor line typically transports the stacked fruit crates containing the fruits and vegetables to a pre-set workstation for unpacking. Then, a flipping device flips the fruit crates one by one, causing the fruits and vegetables to fall onto a fruit and vegetable conveyor assembly, which then transports them to downstream workstations. After the fruits and vegetables have been unpacked, the fruit crates are transported again by another conveyor line to a designated location for stacking.

[0003] like Figure 1 As shown, the conveying direction of the conveyor line 201 is perpendicular to the plane of the paper in the view. Currently, when stacking and unstacking fruit boxes 102 at the conveyor line 201, cylinders 202 are installed on both sides of the conveyor line 201. The two cylinders 202 simultaneously compress and fix the fruit boxes 102, and then the lifting mechanism 203 drives the cylinders 202 and the fruit boxes 102 to move up and down, thereby realizing the stacking and unstacking of the fruit boxes 102. Due to the large volume and weight of the fruit boxes 102, this stacking and unstacking method requires the two cylinders 202 to generate a great amount of compressive force on the fruit boxes 102, which requires high operating power from the cylinders 202 and is prone to damaging the fruit boxes 102. Utility Model Content

[0004] The present invention aims to provide a fruit box fixing device and a fruit and vegetable turning machine to solve the technical problem of easily damaged fruit boxes in the prior art.

[0005] The embodiments of this utility model solve their technical problems by adopting the following technical solutions: A fruit box fixing device is provided, including a first mounting frame, a lifting assembly and a gripping assembly; The lifting assembly is mounted on the first mounting frame; The gripping assembly includes a second mounting frame, a first driving unit, a first gripper and a second gripper. The second mounting frame is slidably mounted on the first mounting frame in a vertical direction. The lifting assembly is connected to the second mounting frame in a transmission to drive the second mounting frame to lift in a vertical direction. One end of the first gripper and one end of the second gripper are respectively hinged to the second mounting bracket. The first drive unit is connected to the first gripper and the second gripper respectively to drive the other ends of the first gripper and the other ends of the second gripper to move closer or further away from each other. The first gripper includes a first claw portion, and the second gripper includes a second claw portion, with the first claw portion and the second claw portion facing a preset work station.

[0006] In this embodiment, the first mounting frame is used to mount the lifting assembly, which drives the second mounting frame to move vertically. When the first drive unit drives the other ends of the first gripper and the other ends of the second gripper to move closer together, it can hold the fruit box. When the first drive unit drives the other ends of the first gripper and the other ends of the second gripper to move away from each other, it can release the fruit box. When the fruit box is located at a preset work position, the first drive unit drives the first gripper and the second gripper to hold and release the fruit box, thereby enabling the stacking or unstacking of the fruit box. Because the first gripper and the second gripper can hold the fruit box, the force on the fruit box is better, and the gripping force generated by the first gripper and the second gripper on the fruit box is relatively small. Therefore, damage to the fruit box can be reduced, and the operating power of the first drive unit can also be reduced.

[0007] In some embodiments, the first drive unit includes a first telescopic drive element and a second telescopic drive element; One end of the first telescopic drive element is hinged to the second mounting bracket, and the other end of the first telescopic drive element is hinged to the middle of the first gripper. One end of the second telescopic drive element is hinged to the second mounting bracket, and the other end of the second telescopic drive element is hinged to the middle of the second gripper.

[0008] In this embodiment, when the first and second telescopic driving elements extend and retract, they can drive the other ends of the first and second grippers to move closer or further apart. Since one end of the first telescopic driving element is hinged to the second mounting bracket, and the other end is hinged to the middle of the first gripper, when the first telescopic driving element drives the first gripper to rotate relative to the second mounting bracket, the driving force of the first telescopic driving element can be reduced according to the principle of torque doing work. Similarly, since one end of the second telescopic driving element is hinged to the second mounting bracket, and the other end is hinged to the middle of the second gripper, when the second telescopic driving element drives the second gripper to rotate relative to the second mounting bracket, the driving force of the second telescopic driving element can be reduced according to the principle of torque doing work.

[0009] In some embodiments, the first gripper further includes a first connecting portion, a first hinge block, and a first hinge end. The first gripper portion and the first hinge end are respectively disposed at both ends of the first connecting portion. A first preset included angle is formed between the first gripper portion and the first connecting portion. The first hinge end is hingedly connected to the second mounting bracket. The first hinge block is disposed at the first connecting portion and is located on one side of the first connecting portion near the preset work position. The other end of the first telescopic drive element is hingedly connected to the first hinge block. The second gripper further includes a second connecting portion, a second hinge block, and a second hinge end. The second gripper portion and the second hinge end are respectively disposed at both ends of the second connecting portion. A second preset included angle is formed between the second gripper portion and the second connecting portion. The second hinge end is hingedly connected to the second mounting bracket. The second hinge block is disposed on the second connecting portion and is located on one side of the second connecting portion near the preset work position. The other end of the second telescopic drive element is hingedly connected to the second hinge block.

[0010] In this embodiment, the first hinge end is hingedly mounted to the second mounting bracket. The first telescopic drive element acts on the first connecting portion through the first hinge block, thereby driving the first claw to rotate around the first hinge end. This arrangement improves the ease of rotation of the first claw. Similarly, the second hinge end is hingedly mounted to the second mounting bracket. The second telescopic drive element acts on the second connecting portion through the second hinge block, thereby driving the second claw to rotate around the second hinge end. This arrangement improves the ease of rotation of the second claw.

[0011] In some embodiments, the gripping assembly further includes a first hinge base and a second hinge base; The first hinge seat and the second hinge seat are located in the middle of the second mounting frame. The first hinge end is hinged to one end of the second mounting frame, and the second hinge end is hinged to the other end of the second mounting frame. One end of the first telescopic drive element is hinged to the first hinge seat, and one end of the second telescopic drive element is hinged to the second hinge seat.

[0012] In this embodiment, by providing a first hinge seat, the connection strength between the first telescopic drive element and the second mounting bracket can be improved, and the first telescopic drive element can smoothly drive the first claw to rotate around the first hinge end. By providing a second hinge seat, the connection strength between the second telescopic drive element and the second mounting bracket can be improved, and the second telescopic drive element can smoothly drive the second claw to rotate around the second hinge end. Furthermore, since the first and second hinge seats are located in the middle of the second mounting bracket, the layout of the first and second telescopic drive elements is more compact, occupying less space.

[0013] In some embodiments, the second mounting bracket is provided with a receiving cavity, and the two ends of the receiving cavity are respectively provided with clearance through holes; The first hinge end, the second hinge end, the first hinge seat and the second hinge seat are located inside the receiving cavity, each of the first connecting part and the second connecting part passes through a corresponding clearance through hole, and the first claw part and the second claw part are located outside the receiving cavity.

[0014] In this embodiment, the receiving cavity protects the first hinge seat, the second hinge seat, the first hinge end, and the second hinge end, preventing interference from other components. Furthermore, by providing a clearance through hole, the normal operation of the first telescopic drive element, the second telescopic drive element, the first gripper, and the second gripper is not affected.

[0015] In some embodiments, the first mounting bracket includes a slide rail and a crossbeam, the slide rail and the crossbeam are connected, and the slide rail is arranged in a vertical direction; The lifting assembly includes a slider and a second drive unit. The slider is connected to the second mounting frame and is slidably mounted on the slide rail. The second drive unit is mounted on the crossbeam and is kinetically connected to the second mounting frame to drive the second mounting frame to rise and fall vertically.

[0016] In this embodiment, the second drive unit enables the second mounting bracket to slide vertically through the cooperation of the slider and the slide rail, making the movement of the second mounting bracket smoother.

[0017] In some embodiments, the number of the first mounting brackets, the number of the lifting components, and the number of the gripping components are all two. The two first mounting brackets are arranged opposite to each other, and the preset workstation is formed between the two first mounting brackets. The preset workstation is located on the transmission path of the conveyor line. Each of the lifting components is mounted on a corresponding first mounting frame, and each of the lifting components is connected to the second mounting frame of a corresponding gripping component to drive the second mounting frame to move up and down in the vertical direction.

[0018] In this embodiment, by setting two first mounting frames, two lifting components and two gripping components, the fruit box can be gripped from opposite sides, which can improve the reliability of fruit box gripping.

[0019] In some embodiments, each of the first mounting brackets includes two crossbeams and two slide rails, the slide rails being arranged vertically, one crossbeam having its two ends connected to the upper part of the two slide rails, and the other crossbeam having its two ends connected to the lower part of the two slide rails. Each of the lifting components includes two sliders and a second drive unit. The two sliders are located on opposite sides of the second mounting bracket, and each slider is slidably mounted on a corresponding slide rail.

[0020] In this embodiment, by setting two crossbeams and two slide rails, a stable frame structure can be formed. In each lifting component, the second mounting bracket can slide more smoothly in the vertical direction by cooperating with two sliders and the corresponding slide rails.

[0021] In some embodiments, each of the second drive units includes a rotation drive element, a transmission belt, and two transmission wheels. Each transmission wheel is rotatably mounted on a corresponding crossbeam. The rotation drive element is mounted on one of the crossbeams. The rotation drive element is tractively connected to at least one of the transmission wheels to drive the transmission wheels to rotate. The transmission belt is sleeved on the two transmission wheels. The transmission belt is tractively connected to the second mounting frame to drive the second mounting frame to move up and down in the vertical direction.

[0022] In this embodiment, by rotating the drive element forward or backward, the two transmission wheels are driven to rotate forward or backward, thereby causing the second mounting bracket connected to the transmission belt to move in the vertical direction.

[0023] An embodiment of this utility model also provides a fruit and vegetable turning machine, including the above-mentioned fruit box fixing device. The fruit and vegetable turning machine of this embodiment also has the above-mentioned advantages, which will not be repeated here.

[0024] Compared with the prior art, in the fruit box fixing device of this utility model, the first mounting frame is used to install the lifting component, and the lifting component is used to drive the second mounting frame to move vertically. When the first drive unit drives the other ends of the first gripper and the other ends of the second gripper to move closer together, it can hold the fruit box. When the first drive unit drives the other ends of the first gripper and the other ends of the second gripper to move away from each other, it can release the fruit box. When the fruit box is located at a preset work position, the first drive unit drives the first gripper and the second gripper to hold and release the fruit box, thereby realizing the stacking or unstacking of the fruit box. Since the first gripper and the second gripper can hold the fruit box, the force on the fruit box is better, and the gripping force generated by the first gripper and the second gripper on the fruit box is relatively small. Therefore, it can reduce the damage to the fruit box and also reduce the operating power of the first drive unit. Attached Figure Description

[0025] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0026] Figure 1This is a diagram showing the connection relationships between the cylinder, lifting assembly, conveyor line, and fruit box in the existing technology. Figure 2 This is a schematic diagram of the structure of a fruit and vegetable turning machine in one embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the fruit box flipping device in one embodiment of the present invention; Figure 4 This is a cross-sectional view showing the connection relationship between the fruit box flipping device and the conveying device in one embodiment of this utility model; Figure 5 yes Figure 2 A magnified view of a portion of the image; Figure 6 This is a connection diagram of the fruit box fixing device, the conveyor line, and the fruit box in one embodiment of this utility model, wherein the first claw and the second claw are far apart from each other; Figure 7 This is a partial structural diagram of the fruit box fixing device in one embodiment of the present utility model, wherein the first claw and the second claw are close to each other; Figure 8 This is a connection diagram of the fruit box fixing device and the conveyor line in another embodiment of the present invention, wherein the first claw and the second claw are close to each other.

[0027] Figure label: 1000 Fruit and vegetable turning machine; 101 Preset work station; 102 Fruit box; 103 Fork trough; 201 Conveyor line; 202 Cylinder; 203 Lifting mechanism.

[0028] 100. Fruit box fixing device; 10. First mounting frame; 12. Slide rail; 14. Crossbeam; 20. Lifting assembly; 22. Slider; 24. Second drive unit; 242. Rotation drive element; 244. Transmission belt; 246. Transmission wheel; 30. Gripping assembly; 31. Second mounting frame; 311. Receiving cavity; 312. Clearance through hole; 32. First drive unit; 322. First telescopic drive element; 324. Second telescopic drive element; 33. First gripper; 332. First gripper portion; 334. First connecting portion; 336. First hinge block; 338. First hinge end; 34. Second gripper; 342. Second gripper portion; 344. Second connecting portion; 346. Second hinge block; 348. Second hinge end; 35. First hinge seat; 36. Second hinge seat.

[0029] 200. Unloading device; 300. Fruit box tipping device; 310. Main frame; 312. Support frame; 3122. Frame body; 3124. Upper limit beam; 3126. Lower limit beam; 320. Roller conveyor assembly; 330. First conveyor belt assembly; 340. Rotary drum assembly; 350. Telescopic drive assembly; 400. Transmission device; 410. First sprocket; 420. Second motor; 430. First chain; 440. Push rod; 500. Stacking device. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "upper end," "lower end," "top," and "bottom," etc., used in this specification, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0032] Please refer to Figure 2 and Figure 3 One embodiment of this utility model provides a fruit and vegetable box turning machine 1000, including a depalletizing device 200, a fruit box turning device 300, a fruit and vegetable conveying device (not shown in the figure), a transmission device 400, and a stacking device 500; Along the conveying direction of the fruit box 102, the unloading device 200, the turning device 300, the conveying device 400, and the stacking device 500 are distributed sequentially; as follows: Figure 2 As shown, Figure 2 The direction indicated by the hollow arrow is the transmission direction of the fruit box 102.

[0033] The unloading device 200 is used to transfer the fruit box 102 containing fruits and vegetables to the flipping device 300; The fruit box flipping device 300 is used to flip the fruit box 102 containing fruits and vegetables. Fruits and vegetables fall from the downstream end of the fruit box flipping device 300 onto the fruit and vegetable conveying device, which is used to collect and transfer the fruits and vegetables in the fruit box 102. The conveying device 400 is used to convey fruit boxes 102 that do not contain fruits and vegetables to the stacking device 500. The stacking device 500 is used to stack the fruit boxes 102; The unloading device 200 and the stacking device 500 each include a fruit box fixing device 100.

[0034] In this embodiment, by providing the unloading device 200, fruit boxes 102 containing fruits and vegetables can be smoothly unpacked. By providing the fruit box flipping device 300, fruit boxes 102 containing fruits and vegetables can be flipped over, preventing damage to the fruits and vegetables. By providing the conveying device 400, fruit boxes 102 without fruits and vegetables can be conveyed to the stacking device 500. By providing the fruit and vegetable conveying device, fruits and vegetables can be conveyed to the downstream workstation. By providing the stacking device 500, fruit boxes 102 without fruits and vegetables can be stacked.

[0035] Specifically, the fruit box tipping device 300 includes a main frame 310, a roller conveyor assembly 320, a first conveyor belt assembly 330, a rotating drum assembly 340, a second conveyor belt assembly, and a telescopic drive assembly 350. The rotating drum assembly 340 is rotatably mounted on the main frame 310. The roller conveyor assembly 320, the first conveyor belt assembly 330, and the telescopic drive assembly 350 are mounted on the rotating drum assembly 340. The roller conveyor assembly 320 and the first conveyor belt assembly 330 are parallel to each other. The telescopic drive assembly 350 is connected to at least one of the roller conveyor assembly 320 and the first conveyor belt assembly 330 to drive the roller conveyor assembly 320 and the first conveyor belt assembly 330 to move closer to or further away from each other. The second conveyor belt assembly is mounted on the main frame 310 and is inclined relative to the horizontal plane. The downstream end of the second conveyor belt assembly is higher than the upstream end of the second conveyor belt assembly. Driven by the rotating drum assembly 340, the downstream end of the first conveyor belt assembly 330 can be flush with the upstream end of the second conveyor belt assembly.

[0036] The main frame 310 is used to mount the rotating drum assembly 340 and the second conveyor belt assembly. The rotating drum assembly 340 can rotate relative to the main frame 310. After the upstream station transfers the fruit box 102 containing fruits and vegetables to the roller conveyor assembly 320, the roller conveyor assembly 320 can continue to transfer the fruit box 102 containing fruits and vegetables a certain distance, so that the fruit box 102 containing fruits and vegetables is transferred between the roller conveyor assembly 320 and the first conveyor belt assembly 330. Under the action of the telescopic drive assembly 350, the roller conveyor assembly 320 and the first conveyor belt assembly 330 can approach each other and clamp the fruit box 102 containing fruits and vegetables. Then, the rotating drum assembly 340 drives the first conveyor belt assembly 330, the roller conveyor assembly 320, and the fruit box 102 containing fruits and vegetables to rotate together, so that the top of the fruit box 102 is facing down and the bottom is facing up. The fruits and vegetables are transferred from the fruit box 102 to the first conveyor belt assembly 330, and the fruits and vegetables are directly supported on the first conveyor belt assembly 330. The first conveyor belt assembly 330 continues to transport the fruits and vegetables and the rotated fruit box 102 together for a distance. Because the first conveyor belt assembly 330 can support the fruits and vegetables and the rotated fruit box 102, the fruits and vegetables will not fall off, and there will be no damage to the fruits and vegetables during rotation. Under the action of the rotating drum assembly 340, when the downstream end of the first conveyor belt assembly 330 connects with the upstream end of the second conveyor belt assembly, the fruits and vegetables and the rotated fruit box 102 can continue to be transported. The fruits and vegetables fall onto the fruit and vegetable conveying device at the downstream end of the second conveyor belt assembly, and the second conveyor belt assembly continues to transport the rotated fruit box 102 to the conveying device 400.

[0037] The first conveyor belt assembly 330, the second conveyor belt assembly, and the fruit and vegetable conveying device can be belt conveying mechanisms. These mechanisms include a driving pulley, a driven pulley, a belt, and a first motor. The belt is fitted onto the driving pulley and the driven pulley. The first motor is connected to the driving pulley via a transmission drive to drive the driving pulley to rotate, thereby driving the belt and the driven pulley to rotate. Furthermore, the belt conveying mechanism may also include a pressure roller, which is used to tension the belt and control the conveying surface of the belt.

[0038] Downstream of the stacking device 500, fruits and vegetables can be placed again in the stacked fruit boxes 102, and the fruit boxes 102 filled with fruits and vegetables can be transported again to the unstacking device 20.

[0039] Please refer to the above as well. Figure 4 and Figure 5In some specific embodiments, the transmission device 400 includes a first sprocket 410, a second motor 420, a first chain 430, and a push rod 440; the main frame 310 is provided with a support frame 312, which forms the transmission path of the fruit box 102 and can support the fruit box 102. Specifically, the support frame 312 includes a frame body 3122, an upper limit beam 3124, and a lower limit beam 3126. The upper limit beam 3124 and the lower limit beam 3126 are connected to the frame body 3122. The upper limit beam 3124 abuts against the bottom end of the fruit box 102, and the lower limit beam 3126 abuts against the top end of the fruit box 102. The upper limit beam 3124 and the lower limit beam 3126 jointly support and limit the fruit box 102. A transmission path is formed between the upper limit beam 3124 and the lower limit beam 3126. The upstream end of the transmission path is connected to the downstream end of the first conveyor belt assembly 330, and the downstream end of the transmission path is connected to the stacking device 400. In some embodiments, a belt conveyor mechanism may also be provided between the downstream end of the transmission path and the stacking device 400. Multiple first sprockets 410 are rotatably mounted on opposite sides of the frame body 3122, and first chains 430 are mounted on opposite sides of the frame body 3122. Each first chain 430 is fitted onto the multiple first sprockets 410 on one side of the frame body 3122. A push rod 440 is connected between two first chains 430 and spans the transmission path. A second motor 420 is driven by the first sprockets 410 to drive them to rotate. When the second motor 420 drives the first sprockets 410 to rotate and the first chains 430 are running, the push rod 440 can push the fruit box 102 to move along the transmission path on the support frame 312.

[0040] Preferably, the upstream end of the transmission path is located below the downstream end of the transmission path, and the downstream end of the transmission path is connected to the stacking device 400. That is, the transmission path turns from bottom to top. When the fruit box 102 is transported along the transmission path, the fruit box 102 is flipped over again, so that the top of the fruit box 102 faces upward and the bottom faces downward, and the fruit box 102 is transported to the stacking device 400. Correspondingly, a corresponding first sprocket 410 is provided at the turning node of the frame body 3122, and the upper limit beam 3124 and the lower limit beam 3126 each include arc-shaped segments. Driven by the second motor 420, the fruit box 102 is flipped from bottom to top along the transmission path.

[0041] Please refer to Figures 6 to 8 Another embodiment of the present invention provides a fruit box fixing device 100, which includes a first mounting frame 10, a lifting component 20 and a gripping component 30; The lifting assembly 20 is mounted on the first mounting bracket 10; The gripping component 30 includes a second mounting frame 31, a first drive unit 32, a first gripper 33 and a second gripper 34. The second mounting frame 31 is slidably mounted on the first mounting frame 10 in the vertical direction. The lifting component 20 and the second mounting frame 31 are connected in a transmission to drive the second mounting frame 31 to rise and fall in the vertical direction. One end of the first gripper 33 and one end of the second gripper 34 are respectively hinged to the second mounting bracket 31. The first drive unit 32 is connected to the first gripper 33 and the second gripper 34 respectively to drive the other end of the first gripper 33 and the other end of the second gripper 34 to move closer or further away from each other. The first gripper 33 includes a first gripper portion 332, and the second gripper 34 includes a second gripper portion 342. The first gripper portion 332 and the second gripper portion 342 face the preset work station 101.

[0042] In this embodiment, the first mounting frame 10 is used to mount the lifting assembly 20, and the lifting assembly 20 is used to drive the second mounting frame 31 to move vertically. When the first drive unit 32 drives the other end of the first gripper 33 and the other end of the second gripper 34 to move closer together, it can hold the fruit box 102. When the first drive unit 32 drives the other end of the first gripper 33 and the other end of the second gripper 34 to move away from each other, it can release the fruit box 102. When the fruit box 102 is located at the preset work station 101, the first drive unit 32 drives the first gripper 33 and the second gripper 34 to hold and release the fruit box 102, thereby enabling the stacking or unstacking of the fruit box 102. Since the first gripper 33 and the second gripper 34 can hold the fruit box 102, the force on the fruit box 102 is better, and the gripping force generated by the first gripper 33 and the second gripper 34 on the fruit box 102 is relatively small. Therefore, damage to the fruit box 102 can be reduced, and the operating power of the first drive unit 32 can also be reduced.

[0043] In this embodiment, the basic principle of destacking is as follows: For example, after the conveyor line 201 transports three stacked fruit boxes 102 containing fruits and vegetables to a preset workstation 101, the lifting component 20 drives the second mounting frame 31 to move to a first preset height, and the first driving unit 32 drives the first gripper 33 and the second gripper 34 to hold the two upper fruit boxes 102. The lifting component 20 drives the gripping component 30 and the two upper fruit boxes 102 to move upward a certain distance, so that the two upper fruit boxes 102 and the bottom fruit box 102 are no longer in contact. At this time, the two upper fruit boxes 102 will not exert pressure on the bottom fruit box 102. The conveyor line 201 can continue to transport the bottom fruit box 102 to the downstream workstation. Then, under the action of the lifting component 20, the two original upper fruit boxes 102 are placed on the conveyor line 201. The above steps are repeated until all fruit boxes 102 are destacking and transported to the downstream workstation.

[0044] In this embodiment, the basic principle of stacking is as follows: For example, when another conveyor line 201 transports a fruit box 102 without fruit or vegetables to another preset workstation 101, the corresponding lifting component 20 drives the second mounting frame 31 to move to a second preset height, and the first driving unit 32 drives the first gripper 33 and the second gripper 34 to hold the fruit box 102. The lifting component 20 drives the gripping component 30 and the fruit box 102 to move upward a certain distance, and the conveyor line 201 transports another fruit box 102 without fruit or vegetables to the preset workstation 101, which is located below the previous fruit box 102. Then, under the action of the lifting component 20 and the gripping component 30, the previous fruit box 102 is placed on the current fruit box 102. Repeat the above steps, lifting component 20 and gripping component 30 lift the bottom fruit box 102, and the conveyor line 201 can transport the fruit box 102 to the bottom of these fruit boxes 102, so that multiple fruit boxes 102 are stacked in sequence. When the fruit boxes 102 are stacked to a certain number, the conveyor line 201 transports the stacked fruit boxes 102 to the downstream workstation. After the conveyor line 201 transports the stacked fruit boxes 102 to the downstream workstation, the workers put the fruits and vegetables back into the fruit boxes 102, and the fruit boxes 102 filled with fruits and vegetables are transported again to the unloading device 200.

[0045] In some specific embodiments, the bottom of the fruit box 102 is provided with a fork groove 103, and the first claw 332 and the second claw 342 can respectively extend into the two ends of the fork groove 103, thereby further improving the force effect on the fruit box 102, further reducing the gripping force on the fruit box 102, avoiding damage to the fruit box 102, and reducing the operating power of the first drive unit 32.

[0046] In some embodiments, the first drive unit 32 includes a first telescopic drive element 322 and a second telescopic drive element 324; One end of the first telescopic drive element 322 is hinged to the second mounting bracket 31, and the other end of the first telescopic drive element 322 is hinged to the middle of the first gripper 33. One end of the second telescopic drive element 324 is hinged to the second mounting bracket 31, and the other end of the second telescopic drive element 324 is hinged to the middle of the second gripper 34.

[0047] In this embodiment, when the first telescopic drive element 322 and the second telescopic drive element 324 extend or retract, they can drive the other ends of the first gripper 33 and the second gripper 34 to move closer or further apart. Since one end of the first telescopic drive element 322 is hinged to the second mounting bracket 31, and the other end is hinged to the middle of the first gripper 33, when the first telescopic drive element 322 drives the first gripper 33 to rotate relative to the second mounting bracket 31, the driving force of the first telescopic drive element 322 can be reduced according to the principle of torque doing work. Similarly, since one end of the second telescopic drive element 324 is hinged to the second mounting bracket 31, and the other end is hinged to the middle of the second gripper 34, when the second telescopic drive element 324 drives the second gripper 34 to rotate relative to the second mounting bracket 31, the driving force of the second telescopic drive element 324 can be reduced according to the principle of torque doing work.

[0048] In some specific embodiments, the first telescopic drive element 322 and the second telescopic drive element 324 are cylinders, respectively.

[0049] In some embodiments, the first gripper 33 further includes a first connecting portion 334, a first hinge block 336, and a first hinge end 338. The first gripper portion 332 and the first hinge end 338 are respectively disposed at both ends of the first connecting portion 334. A first preset included angle is formed between the first gripper portion 332 and the first connecting portion 334. The first hinge end 338 is hingedly connected to the second mounting bracket 31. The first hinge block 336 is disposed on the first connecting portion 334 and is located on one side of the first connecting portion 334 near the preset work station 101. The other end of the first telescopic drive element 322 is hingedly connected to the first hinge block 336. The second gripper 34 also includes a second connecting portion 344, a second hinge block 346, and a second hinge end 348. The second gripper portion 342 and the second hinge end 348 are respectively disposed at both ends of the second connecting portion 344. A second preset included angle is formed between the second gripper portion 342 and the second connecting portion 344. The second hinge end 348 is hinged to the second mounting bracket 31. The second hinge block 346 is disposed on the second connecting portion 344 and is located on one side of the second connecting portion 344 near the preset work station 101. The other end of the second telescopic drive element 324 is hinged to the second hinge block 346.

[0050] In this embodiment, the first hinge end 338 is hingedly mounted to the second mounting bracket 31. The first telescopic drive element 322 acts on the first connecting portion 334 through the first hinge block 336, thereby driving the first claw portion 332 to rotate around the first hinge end 338. This arrangement improves the ease of rotation of the first claw portion 332. Similarly, the second hinge end 348 is hingedly mounted to the second mounting bracket 31. The second telescopic drive element 324 acts on the second connecting portion 344 through the second hinge block 346, thereby driving the second claw portion 342 to rotate around the second hinge end 348. This arrangement also improves the ease of rotation of the second claw portion 342.

[0051] In some specific embodiments, the first preset included angle and the second preset included angle are both 90°. The first hinge end 338 is hinged to the second mounting bracket 31 via a first hinge shaft, and the second hinge end 348 is mounted to the second mounting bracket 31 via another first hinge shaft.

[0052] In some embodiments, the gripping component 30 further includes a first hinge seat 35 and a second hinge seat 36; The first hinge seat 35 and the second hinge seat 36 are located in the middle of the second mounting frame 31. The first hinge end 338 is hinged to one end of the second mounting frame 31, and the second hinge end 348 is hinged to the other end of the second mounting frame 31. One end of the first telescopic drive element 322 is hinged to the first hinge seat 35, and one end of the second telescopic drive element 324 is hinged to the second hinge seat 36.

[0053] In this embodiment, by providing the first hinge seat 35, the connection strength between the first telescopic drive element 322 and the second mounting bracket 31 can be improved, and the first telescopic drive element 322 can smoothly drive the first claw portion 332 to rotate around the first hinge end 338. By providing the second hinge seat 36, the connection strength between the second telescopic drive element 324 and the second mounting bracket 31 can be improved, and the second telescopic drive element 324 can smoothly drive the second claw portion 342 to rotate around the second hinge end 348. Furthermore, since the first hinge seat 35 and the second hinge seat 36 are located in the middle of the second mounting bracket 31, the layout of the first telescopic drive element 322 and the second telescopic drive element 324 is more compact, occupying less space.

[0054] In some specific embodiments, one end of the first telescopic drive element 322 is hinged to the first hinge seat 35 via a second hinge axis, and the other end of the first telescopic drive element 322 is hinged to the first hinge end 338 via a third hinge axis. One end of the second telescopic drive element 324 is hinged to the second hinge seat 36 via a second hinge axis, and the other end of the second telescopic drive element 324 is hinged to the second hinge end 348 via a third hinge axis.

[0055] In some embodiments, the second mounting bracket 31 is provided with a receiving cavity 311, and the two ends of the receiving cavity 311 are respectively provided with clearance through holes 312; the first hinge end 338, the second hinge end 348, the first hinge seat 35 and the second hinge seat 36 are located in the receiving cavity 311, each of the first connecting part 334 and the second connecting part 344 passes through a corresponding clearance through hole 312, and the first claw part and the second claw part are located outside the receiving cavity 311.

[0056] In this embodiment, the receiving cavity 311 protects the first hinge seat 35, the second hinge seat 36, the first hinge end 338 and the second hinge end 348, and can prevent other components from interfering with it. In addition, by providing the clearance through hole 312, the normal operation of the first telescopic drive element 322, the second telescopic drive element 324, the first gripper 33 and the second gripper 34 will not be affected.

[0057] In some embodiments, the first mounting bracket 10 includes a slide rail 12 and a crossbeam 14, the slide rail 12 and the crossbeam 14 are connected, and the slide rail 12 is arranged in a vertical direction; The lifting assembly 20 includes a slider 22 and a second drive unit 24. The slider 22 is connected to the second mounting bracket 31, and the slider 22 is slidably disposed on the slide rail 12. The second drive unit 24 is disposed on the crossbeam 14. The second drive unit 24 is connected to the second mounting bracket 31 in a transmission manner to drive the second mounting bracket 31 to rise and fall in the vertical direction.

[0058] In this embodiment, through the cooperation of slider 22 and slide rail 12, the second drive unit 24 enables the second mounting bracket 31 to slide in the vertical direction, making the movement of the second mounting bracket 31 smoother.

[0059] In some specific embodiments, the second mounting bracket 31 is mounted on the slider 22 by bolts or the like.

[0060] In some embodiments, the number of first mounting brackets 10, the number of lifting components 20, and the number of gripping components 30 are all two. The two first mounting brackets 10 are arranged opposite to each other, and a preset work station 101 is formed between the two first mounting brackets 10. The preset work station 101 is located on the transmission path of the conveyor line 201. Each lifting component 20 is mounted on a corresponding first mounting frame 10, and each lifting component 20 is connected to a corresponding second mounting frame 31 of a gripping component 30 to drive the second mounting frame 31 to rise and fall in the vertical direction.

[0061] In this embodiment, by setting two first mounting brackets 10, two lifting components 20 and two gripping components 30, the fruit box 102 can be gripped from opposite sides, which can improve the reliability of gripping the fruit box 102.

[0062] In some specific embodiments, the bottom of the fruit box 102 is provided with two parallel fork slots 103, which penetrate through two opposite sides of the fruit box 102. The fork slots 103 are parallel to the transmission direction of the conveyor line 201. When the fruit box 102 arrives at the preset station 101, two first mounting frames 10 are respectively located on the other opposite sides of the fruit box 102. Each first mounting frame 10 is provided with a lifting component 20 and a gripping component 30. The first claw 332 and the second claw 342 of each gripping component 30 can respectively engage with the two ends of a fork slot 103, thereby holding the fruit box 102.

[0063] In some embodiments, each first mounting bracket 10 includes two crossbeams 14 and two slide rails 12, the slide rails 12 being arranged vertically, one crossbeam 14 having both ends connected to the upper part of the two slide rails 12, and the other crossbeam 14 having both ends connected to the lower part of the two slide rails 12. Each lifting assembly 20 includes two sliders 22 and a second drive unit 24. The two sliders 22 are located on opposite sides of the second mounting bracket 31, and each slider 22 is slidably mounted on a corresponding slide rail 12.

[0064] In this embodiment, by setting two crossbeams 14 and two slide rails 12, a stable frame structure can be formed. In each lifting component 20, the two sliders 22 and the corresponding slide rails 12 cooperate to enable the second mounting bracket 31 to slide more smoothly in the vertical direction.

[0065] In some specific embodiments, the two ends of the two slide rails 12 are connected to the crossbeam 14 by bolts or other structures.

[0066] In some embodiments, each second drive unit 24 includes a rotation drive element 242, a transmission belt 244, and two transmission wheels 246. Each transmission wheel 246 is rotatably mounted on a corresponding crossbeam 14. The rotation drive element 242 is mounted on one of the crossbeams 14. The rotation drive element 242 is tractively connected to at least one transmission wheel 246 to drive the transmission wheel 246 to rotate. The transmission belt 244 is sleeved on the two transmission wheels 246. The transmission belt 244 is tractively connected to the second mounting frame 31 to drive the second mounting frame 31 to move up and down in the vertical direction.

[0067] In this embodiment, by rotating the drive element 242 in the forward or reverse direction, the two transmission wheels 246 are driven to rotate in the forward or reverse direction, thereby causing the second mounting bracket 31 connected to the transmission belt 244 to move in the vertical direction.

[0068] In some specific embodiments, the rotation drive element 242 can be a third motor, which can be a stepper motor. The number of rotations and the rotation amplitude of the stepper motor are controlled by a PLC controller, thereby enabling precise control of the lifting and lowering displacement of the second mounting bracket 31. The transmission belt 244 can be a chain, and the transmission wheel 246 can be a sprocket. The transmission wheels 246 in the two second drive units 24 can share a single rotation drive element 242.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fruit box fixing device, characterized in that, Includes a first mounting frame, a lifting assembly, and a gripping assembly; The lifting assembly is mounted on the first mounting frame; The gripping assembly includes a second mounting frame, a first driving unit, a first gripper and a second gripper. The second mounting frame is slidably mounted on the first mounting frame in a vertical direction. The lifting assembly is connected to the second mounting frame in a transmission to drive the second mounting frame to lift in a vertical direction. One end of the first gripper and one end of the second gripper are respectively hinged to the second mounting bracket. The first drive unit is connected to the first gripper and the second gripper respectively to drive the other ends of the first gripper and the other ends of the second gripper to move closer or further away from each other. The first gripper includes a first claw portion, and the second gripper includes a second claw portion, with the first claw portion and the second claw portion facing a preset work station.

2. The fruit box fixing device according to claim 1, characterized in that, The first drive unit includes a first telescopic drive element and a second telescopic drive element; One end of the first telescopic drive element is hinged to the second mounting bracket, and the other end of the first telescopic drive element is hinged to the middle of the first gripper. One end of the second telescopic drive element is hinged to the second mounting bracket, and the other end of the second telescopic drive element is hinged to the middle of the second gripper.

3. The fruit box fixing device according to claim 2, characterized in that, The first gripper further includes a first connecting portion, a first hinge block, and a first hinge end. The first gripper portion and the first hinge end are respectively disposed at both ends of the first connecting portion. A first preset included angle is formed between the first gripper portion and the first connecting portion. The first hinge end is hingedly connected to the second mounting bracket. The first hinge block is disposed at the first connecting portion and is located on one side of the first connecting portion near the preset work position. The other end of the first telescopic drive element is hingedly connected to the first hinge block. The second gripper further includes a second connecting portion, a second hinge block, and a second hinge end. The second gripper portion and the second hinge end are respectively disposed at both ends of the second connecting portion. A second preset included angle is formed between the second gripper portion and the second connecting portion. The second hinge end is hingedly connected to the second mounting bracket. The second hinge block is disposed on the second connecting portion and is located on one side of the second connecting portion near the preset work position. The other end of the second telescopic drive element is hingedly connected to the second hinge block.

4. The fruit box fixing device according to claim 3, characterized in that, The gripping component also includes a first hinge seat and a second hinge seat; The first hinge seat and the second hinge seat are located in the middle of the second mounting frame. The first hinge end is hinged to one end of the second mounting frame, and the second hinge end is hinged to the other end of the second mounting frame. One end of the first telescopic drive element is hinged to the first hinge seat, and one end of the second telescopic drive element is hinged to the second hinge seat.

5. The fruit box fixing device according to claim 4, characterized in that, The second mounting bracket has a receiving cavity, and the two ends of the receiving cavity are respectively provided with clearance through holes; The first hinge end, the second hinge end, the first hinge seat and the second hinge seat are located inside the receiving cavity, each of the first connecting part and the second connecting part passes through a corresponding clearance through hole, and the first claw part and the second claw part are located outside the receiving cavity.

6. The fruit box fixing device according to claim 1, characterized in that, The first mounting bracket includes a slide rail and a crossbeam, the slide rail and the crossbeam are connected, and the slide rail is arranged in a vertical direction; The lifting assembly includes a slider and a second drive unit. The slider is connected to the second mounting frame and is slidably mounted on the slide rail. The second drive unit is mounted on the crossbeam and is kinetically connected to the second mounting frame to drive the second mounting frame to rise and fall vertically.

7. The fruit box fixing device according to claim 6, characterized in that, The number of the first mounting frame, the number of the lifting component, and the number of the gripping component are all two. The two first mounting frames are arranged opposite to each other, and the preset workstation is formed between the two first mounting frames. The preset workstation is located on the transmission path of the conveyor line. Each of the lifting components is mounted on a corresponding first mounting frame, and each of the lifting components is connected to the second mounting frame of a corresponding gripping component to drive the second mounting frame to move up and down in the vertical direction.

8. The fruit box fixing device according to claim 7, characterized in that, Each of the first mounting brackets includes two crossbeams and two slide rails, the slide rails being arranged vertically, one of the crossbeams having its two ends connected to the upper part of the two slide rails, and the other crossbeam having its two ends connected to the lower part of the two slide rails. Each of the lifting components includes two sliders and a second drive unit. The two sliders are located on opposite sides of the second mounting bracket, and each slider is slidably mounted on a corresponding slide rail.

9. The fruit box fixing device according to claim 8, characterized in that, Each of the second drive units includes a rotation drive element, a transmission belt, and two transmission wheels. Each transmission wheel is rotatably mounted on a corresponding crossbeam. The rotation drive element is mounted on one of the crossbeams. The rotation drive element is tractively connected to at least one of the transmission wheels to drive the transmission wheel to rotate. The transmission belt is sleeved on the two transmission wheels. The transmission belt is tractively connected to the second mounting frame to drive the second mounting frame to move up and down in the vertical direction.

10. A fruit and vegetable turning machine, characterized in that, Includes the fruit box fixing device as described in any one of claims 1 to 9.

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