Online packaging and stacking equipment for rice storage

Abstract

The invention discloses rice storage on-line packaging and stacking equipment, and relates to the technical field of rice storage processing, the rice storage on-line packaging and stacking equipment comprises a transfer mechanism and a grabbing mechanism, the transfer mechanism is composed of a rotating assembly and an extension arm capable of lifting and moving on the rotating assembly; an extending arm of the transferring mechanism is rotationally connected with an inverted-U-shaped rotating base driven by a first motor, the rotating base is provided with a grabbing mechanism and a limiting mechanism, and the limiting mechanism is provided with a guiding mechanism. The device has the advantages that through mutual cooperation of the grabbing mechanism and the limiting mechanism, the grabbed packaged rice is subjected to center limiting in the front-back direction and the left-right direction, it is guaranteed that the grabbed packaged rice is in the center position during grabbing and releasing, and the steps and time needed for adjusting the front position before stacking are reduced; the bearing strength of the bottom of the grabbed packaged rice is enhanced, falling in the transferring process is prevented, and damage to an outer packaging bag of the packaged rice during grabbing is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of rice storage and processing, and in particular to an online packaging and stacking device for rice storage. Background Art

[0002] The rice storage and processing includes weighing and packaging the processed rice, and then storing or transporting it to various markets for sale. The rice packaging and storage process includes filling and sealing, vacuuming, stacking and warehousing. During stacking and warehousing, the packaged rice products are sent to the stacking equipment via a conveyor belt. The stacking equipment grabs the packaged rice through a gripper and stacks it on a pallet according to a predetermined pattern, preparing for subsequent storage or transportation.

[0003] At present, in the process of rice stacking, when the packaged rice is transported to the stacking equipment by the conveying equipment, in order to make the packaged rice in the center position when grasped, the position adjustment equipment is used to perform position processing before stacking; however, when the packaged rice after position processing is transmitted to the stacking equipment, due to the vibration of the conveying equipment or the inaccurate positioning of the gripper of the stacking equipment, there is still a position deviation; secondly, the gripper of the stacking equipment is in the shape of a rake. When too much force is applied during transportation or the gripper is inaccurately positioned, the outer bag of the packaged rice will be damaged. If a rubber sleeve is used to protect the gripper, the friction during release will increase, resulting in untimely unloading; furthermore, the gripper of the stacking equipment releases the packaged rice, and the rice only falls downward with gravity, and the accuracy of the stacking position needs to be improved.

[0004] Therefore, in order to ensure that the packaged rice is in a central position when being grabbed and released, and to improve the accuracy of the stacking position, the present invention provides an online packaging and stacking device for rice storage. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose an online rice storage packaging and stacking device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A rice storage online packaging and stacking device comprises a transfer mechanism and a grabbing mechanism. The transfer mechanism consists of a rotating assembly and an extension arm on the rotating assembly which can be lifted and lowered. The extension arm of the transfer mechanism is rotatably connected to an inverted U-shaped rotating seat driven by a motor. The rotating seat is provided with a grabbing mechanism and a limiting mechanism, and the limiting mechanism is provided with a guiding mechanism.

[0008] The grabbing mechanism comprises a grabbing and locking component for grabbing the packaged rice and a front and rear limiting component for continuously centering and limiting the packaged rice on the front and rear sides during the grabbing process; the grabbing and locking component comprises a support frame, and the side walls of the two vertical sections of the rotating seat close to each other are both rotatably connected with support frames driven by motor 2, and the two support frames are relatively distributed front and back, and the bottom wall of the support frame is evenly and fixedly connected with a plurality of L-shaped grabbing claws from left to right.

[0009] The front and rear limit limit assemblies include a limit limit support rod, and the left side wall of the vertical section of the grab claw is rotatably connected to the limit limit support rod, and the side walls of the front and rear corresponding limit support rods close to each other are each provided with a slide groove, and the slide groove is connected to a slide seat that slides up and down through a spring, and multiple slide seats on the same side are rotatably connected to a limit arc plate together.

[0010] In the above-mentioned rice storage online packaging and stacking equipment, the grabbing claws on the bottom walls of the two support frames are symmetrically distributed front and back, and the top wall of the horizontal section of the grabbing claw is rotatably connected to a plurality of ball bearings that are evenly distributed front and back.

[0011] In the above-mentioned rice storage online packaging and stacking equipment, the outer walls of the two front and rear corresponding grabbing claws that are close to each other are respectively fixedly connected with a front wedge block and a rear wedge block, and the outer wall of the front wedge block that is close to the rear wedge block is provided with a locking groove, and the outer wall of the rear wedge block that is close to the front wedge block is slidably connected with a pin that is compatible with the locking groove through an electric slider.

[0012] In the above-mentioned rice storage online packaging and stacking equipment, the lower end of the limiting support rod is rotatably connected to a slide seat 2, a slide groove 2 is opened on the left side wall of the horizontal section of the grabbing claw, and the slide seat 2 slides back and forth on the slide groove 2 through a spring 2.

[0013] In the above-mentioned rice storage online packaging and stacking equipment, the limiting mechanism includes left and right limiting components for centering and limiting the rice on the left and right sides after being grabbed, and the left and right limiting components include a trapezoidal fixed seat, and the bottom walls of the two vertical sections of the rotating seat are fixedly connected with the trapezoidal fixed seat, and the sides of the two trapezoidal fixed seats that are close to each other are inclined, and a slide groove three is provided on the inclined outer wall of the trapezoidal fixed seat.

[0014] In the above-mentioned rice storage online packaging and stacking equipment, an inverted trapezoidal limit seat is slidably connected to the slide groove three through an electric slider, and the side of the inverted trapezoidal limit seat close to each other is vertical, and a plurality of ball bearings 2 are evenly arranged and distributed on the side walls of the inverted trapezoidal limit seat close to each other, and the guide mechanism is arranged on the inverted trapezoidal limit seat.

[0015] In the above-mentioned rice storage online packaging and stacking equipment, the limiting mechanism also includes an upper limit component for limiting the upper side of the rice after being grabbed, and the upper limit component includes a limiting slide rail, and the front and rear side walls of the inverted trapezoidal limiting seat are symmetrically fixedly connected to the limiting slide rail, and the side walls of the left and right corresponding limiting slide rails close to each other are each provided with a slide groove four.

[0016] In the above-mentioned rice storage online packaging and stacking equipment, racks are slidably connected to the four slide grooves of the left and right corresponding limiting slide rails, and blocking pieces are fixedly connected to the middle parts of the side walls where the front and rear corresponding racks are close to each other.

[0017] In the above-mentioned rice storage online packaging and stacking equipment, the guiding mechanism includes a rectangular groove, and the inner top wall of the rectangular groove is rotatably connected with a gear and a second pulley, the gear and the second pulley are coaxially connected, and the middle part of the rack is not provided with teeth, and the upper side wall of the gear and the end of the rack provided with teeth are meshed with each other; the bottom wall of the inverted trapezoidal limit seat is rotatably connected with a pulley one corresponding to the second pulley above and below, and the second pulley and the first pulley are jointly meshed with a synchronous toothed belt, and the lower side wall of the gear is meshed with the rack.

[0018] In the above-mentioned rice storage online packaging and stacking equipment, the bottom wall of the inverted trapezoidal limit seat is rotatably connected to a pulley 1 corresponding to the gear above and below, and the gear and the pulley 1 are jointly meshed and connected with a synchronous toothed belt, and a guide plate is coaxially fixedly connected to the pulley 1.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. Through the cooperation of the grabbing mechanism and the limiting mechanism, the grabbed packaged rice is limited in the front and rear directions and the left and right directions to ensure that it is in the center position when grabbing and releasing, thereby improving the position accuracy; the front and rear corresponding limiting arc plates push the packaged rice, and the two inverted trapezoidal limiting seats push the left and right sides of the packaged rice to ensure the center position when grabbing, and the baffle limits the upper side of the packaged rice.

[0021] 2. By grabbing the locking component and the left and right limit components, the supporting strength of the bottom of the grabbed packaged rice is enhanced to prevent it from falling during the transfer process and to prevent the outer bag of the packaged rice from being damaged when grabbing; the latch is engaged into the engagement groove to increase the connection between the front and rear corresponding grabbing claws; the front wedge block and the rear wedge block are chamfered on one side close to each other; the ball 1 contacts the bottom wall of the packaged rice when the packaged rice moves; the ball 2 is close to the left and right outer walls of the packaged rice, and rolling can reduce the friction of the packaged rice when grabbing.

[0022] 3. Through the coordination of the limiting mechanism and the guiding mechanism, the stacking position of the packaged rice after transfer is accurate, which prevents the rice from tipping over during transportation due to uneven stacking. The rack drives the guide plate to change from the horizontal initial state to the vertical state. The packaged rice falls due to gravity, and when it leaves the inverted trapezoidal limiting seat, it continues to fall to the designated position under the guidance of the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 A schematic diagram of the overall structure.

[0025] Figure 2 Schematic diagram of the structure of the packaged rice stack.

[0026] Figure 3 It is a structural schematic diagram of the rotating seat and the grasping mechanism.

[0027] Figure 4 It is a partial structural diagram of the grasping mechanism.

[0028] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0029] Figure 6 It is a schematic diagram of the change from the state of the limiting support rod and the limiting arc plate before grasping the packaged rice to the state after grasping the packaged rice.

[0030] Figure 7 It is a partial structural diagram of the limiting mechanism.

[0031] Figure 8 This is a schematic diagram of the changes of the guide plate before and during guidance.

[0032] Fig. 9 It is a partial structural schematic diagram of the guiding mechanism.

[0033] In the figure: 1, transfer mechanism; 2, rotating seat; 3, grabbing mechanism; 31, grabbing locking assembly; 311, support frame; 312, grabbing claw; 313, front wedge; 314, engaging groove; 315, rear wedge; 316, latch; 317, ball bearing 1; 32, front and rear limit assemblies; 321, limit support rod; 322, slide groove 1; 323, slide seat 1; 324, limit arc plate; 325, slide seat 2; 326. Slideway 2; 4. Limiting mechanism; 41. Left and right limiting components; 411. Trapezoidal fixing seat; 412. Slideway 3; 413. Inverted trapezoidal limiting seat; 414. Ball bearing 2; 42. Upper limiting component; 421. Limiting slide rail; 422. Rack; 423. Blocking piece; 5. Guide mechanism; 51. Rectangular groove; 52. Gear; 53. Synchronous toothed belt; 54. Pulley 1; 55. Guide plate; 56. Pulley 2. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1 to Figure 2 A rice storage online packaging and stacking device comprises a transfer mechanism 1 and a grabbing mechanism 3. The transfer mechanism 1 is composed of a rotating assembly and an extension arm on the rotating assembly which can be lifted and lowered. The extension arm of the transfer mechanism 1 is rotatably connected with an inverted U-shaped rotating seat 2 driven by a motor 1 (not shown in the figure). The rotating seat 2 is provided with a grabbing mechanism 3 and a limiting mechanism 4. The limiting mechanism 4 is provided with a guiding mechanism 5.

[0036] The rotating assembly of the transfer mechanism 1 consists of a base and a rotating column rotatably connected to the top of the base. An extension arm that can be lifted and lowered is provided on the rotating column. The packaged rice is transported to the stacking area through a conveying device. The rotation of the rotating assembly of the transfer mechanism 1 and the up and down adjustment of the extension arm coordinate to transfer the position of the rotating seat 2, the grabbing mechanism 3, the limiting mechanism 4 and the guiding mechanism 5 as well as the packaged rice that is grabbed. The rotating seat 2 rotates on the extension arm of the transfer mechanism 1 to adjust the position of the grabbed rice when it is stacked.

[0037] When the transfer mechanism 1 and the rotating seat 2 drive the grabbing mechanism 3 to move to the top of the rice on the conveying equipment, the grabbing mechanism 3 grabs the packaged rice and simultaneously performs centering limit on the front and rear sides. When the rice leaves the conveying equipment, the limit mechanism 4 quickly performs centering limit on the left and right sides of the rice and adjusts the guide mechanism 5 at the same time. After the rice is transferred to the designated area of ​​the stacking area, the grabbing mechanism 3 releases the grabbing of the rice and the guide mechanism 5 guides the stacking of the rice.

[0038] Reference Figure 1 and Figure 3 The grabbing mechanism 3 includes a grabbing and locking component 31 for grabbing the packaged rice and a front and rear limiting component 32 for continuously centering and limiting the front and rear sides of the packaged rice during the grabbing process.

[0039] Reference Figures 3 to 5 The grabbing and locking assembly 31 includes a support frame 311, and the side walls of the two vertical sections of the rotating seat 2 that are close to each other are rotatably connected to the support frames 311 driven by the motor 2 (not shown in the figure), the two support frames 311 are relatively distributed front and back, and the bottom wall of the support frame 311 is evenly and fixedly connected with a plurality of L-shaped grab claws 312 from left to right; the grab claws 312 on the bottom walls of the two support frames 311 are symmetrically distributed front and back, and the top wall of the horizontal section of the grab claw 312 is rotatably connected with a plurality of ball bearings 317 that are evenly distributed front and back; the outer walls of the two front and rear corresponding grab claws 312 that are close to each other are respectively fixedly connected with a front wedge block 313 and a rear wedge block 315, and the outer wall of the front wedge block 313 on one side close to the rear wedge block 315 is provided with a locking groove 314, and the outer wall of the rear wedge block 315 on one side close to the front wedge block 313 is slidably connected with a pin 316 that is compatible with the locking groove 314 through an electric slider.

[0040] Reference Figure 3 , Figure 4 and Figure 6 The front and rear limit limit assemblies 32 include a limit support rod 321, and the left side wall of the vertical section of the grab claw 312 is rotatably connected to the limit support rod 321. The side walls of the front and rear corresponding limit support rods 321 close to each other are provided with a slide groove 1 322, and the slide groove 1 322 is connected to a slide seat 1 323 for sliding up and down sliding through a spring 1 (not shown in the figure), and the multiple slide seats 1 323 on the same side are rotatably connected to the limit arc plate 324; the lower end of the limit support rod 321 is rotatably connected to a slide seat 2 325, and the left side wall of the horizontal section of the grab claw 312 is provided with a slide groove 2 326, and the slide seat 2 325 slides back and forth on the slide groove 2 326 through a spring 2 (not shown in the figure).

[0041] When the grabbing mechanism 3 grabs the packaged rice, the two motors 2 respectively drive the corresponding support frames 311 to rotate, and the two support frames 311 change from an initial state of being away from each other to a state of being close to each other. The existing transmission equipment for transmitting the packaged rice is composed of transmission rollers arranged at uniform intervals. The grabbing claw 312 enters the gap between the transmission rollers of the conveying equipment, and the horizontal section of the grabbing claw 312 supports the bottom of the packaged rice in the gap between the transmission rollers to facilitate the rapid grabbing of the rice.

[0042] When the grabbing claw 312 drives the limiting arc plate 324 to approach the packaged rice, the limiting arc plate 324 is close to the front and rear sides of the packaged rice. When the support frame 311 drives the grabbing claw 312 to gradually approach, the limiting arc plate 324 is squeezed and rotated on the slide seat 1 323 by the packaged rice to adaptively change the tilt angle. The slide seat 1 323 adaptively slides upward on the slide groove 1 322. The spring 1 is compressed, and the limiting support rod 321 drives the slide seat 2 325 to adaptively slide on the slide groove 2 326 toward the side of the vertical section close to the grabbing claw 312. The spring 2 is compressed, and the limiting support rod 321 adaptively rotates on the grabbing claw 312 and the slide seat 2 325 to ensure that the limiting arc plate 324 continues to be close to the front and rear side walls of the packaged rice.

[0043] The front and rear corresponding limiting arc plates 324 push the packaged rice to ensure that it is in the center position of grabbing. The front wedge block 313 and the rear wedge block 315 are chamfered on one side close to each other. The ball 1 317 contacts the bottom wall of the packaged rice when the packaged rice moves. The rolling can reduce the friction of the packaged rice when grabbing, thereby preventing the outer bag of the packaged rice from being damaged when grabbing.

[0044] When the horizontal sections of the two grabbing claws 312 are in a horizontal state relative to each other, the latch 316 of the rear wedge block 315 is driven by the electric slider to quickly move toward the direction of the front wedge block 313, and the latch 316 is engaged into the engagement groove 314 to increase the connection between the front and rear corresponding grabbing claws 312, and at the same time enhance the supporting strength of the bottom of the grabbed packaged rice to prevent it from falling during the transfer process.

[0045] Reference Figure 1 and Figure 7 The limiting mechanism 4 includes left and right limiting components 41 for centering and limiting the rice on the left and right sides after grabbing, and an upper limit component 42 for limiting the upper side of the rice after grabbing.

[0046] Reference Figure 7The left and right limit assembly 41 includes a trapezoidal fixed seat 411, and the bottom walls of the two vertical sections of the rotating seat 2 are fixedly connected with the trapezoidal fixed seat 411. The sides of the two trapezoidal fixed seats 411 that are close to each other are inclined, and a slide groove 412 is provided on the inclined outer wall of the trapezoidal fixed seat 411; the slide groove 412 is slidably connected with an inverted trapezoidal limit seat 413 through an electric slider, and the sides of the inverted trapezoidal limit seats 413 that are close to each other are vertical, and a plurality of ball bearings 414 are evenly arranged and distributed on the side walls of the inverted trapezoidal limit seats 413 that are close to each other, and the guide mechanism 5 is arranged on the inverted trapezoidal limit seat 413.

[0047] Reference Figure 7 The upper limit assembly 42 includes a limit rail 421. The front and rear side walls of the inverted trapezoidal limit seat 413 are symmetrically fixedly connected to the limit rail 421. The side walls of the left and right corresponding limit rails 421 close to each other are provided with four slide grooves; the slide grooves four of the left and right corresponding limit rails 421 are slidably connected to a rack 422, and the middle parts of the side walls of the front and rear corresponding racks 422 close to each other are fixedly connected to a blocking piece 423.

[0048] When the inverted trapezoidal limiting seat 413 and the trapezoidal fixing seat 411 are completely overlapped, the bottom wall height of the inverted trapezoidal limiting seat 413 is consistent with the bottom wall height of the trapezoidal fixing seat 411 and is higher than the bottom wall height of the horizontal section of the grabbing claw 312, and will not hinder the grabbing action of the grabbing claw 312 entering the gap between the conveying rollers of the conveying equipment.

[0049] When the rice leaves the conveying device, the inverted trapezoidal stopper 413 quickly slides down on the slide groove 3 412 through the electric slider, and the inverted trapezoidal stopper 413 changes from a state of complete overlap with the trapezoidal fixed seat 411 to a state of partial overlap. During the movement, the second ball 414 is close to the outer walls of the left and right sides of the packaged rice, and adaptively rotates to reduce friction. The two inverted trapezoidal stopper 413 push the left and right sides of the packaged rice to ensure that it is in the center position of the grab. This process occurs quickly during the transfer of the packaged rice and does not affect the efficiency of stacking.

[0050] When the inverted trapezoidal limit seat 413 moves, the limit slide rail 421 is driven to move, and the limit slide rail 421, the rack 422 and the blocking piece 423 move downward synchronously. The blocking piece 423 limits the upper side of the packaged rice. At the same time, the two corresponding limit slide rails 421 on the left and right approach each other, and the left and right ends of the rack 422 gradually slide into the interior of the limit slide rail 421.

[0051] Reference Figure 1 , Figure 8 and Fig. 9The guide mechanism 5 includes a rectangular groove 51. The bottom wall of the inverted trapezoidal limit seat 413 is provided with a rectangular groove 51. The inner top wall of the rectangular groove 51 is rotatably connected with a gear 52 and a second pulley 56. The gear 52 and the second pulley 56 are coaxially connected. The middle part of the rack 422 is not provided with teeth. The upper side wall of the gear 52 and the end of the rack 422 provided with teeth are meshed with each other; the bottom wall of the inverted trapezoidal limit seat 413 is rotatably connected with a pulley 1 54 corresponding to the upper and lower pulley 2 56. The pulley 2 56 and the pulley 1 54 are meshed with a synchronous toothed belt 53. A guide plate 55 is coaxially fixedly connected to the pulley 1 54.

[0052] In the process of transferring the rice to the designated area of ​​the stacking area, when the left and right ends of the rack 422 gradually slide into the interior of the limiting slide rail 421, the movement of the rack 422 drives the gear 52 to rotate, the pulley 2 56 to rotate, the synchronous toothed belt 53 is driven, and the pulley 1 54 drives the guide plate 55 to rotate, and the guide plate 55 changes from the horizontal initial state to the vertical state. When the rice is transferred to the designated area of ​​the stacking area, the grasping mechanism 3 releases the grasping of the packaged rice, and the packaged rice falls due to gravity, and falls along the limiting area of ​​the side walls of the inverted trapezoidal limiting seat 413 that are close to each other. When it leaves the inverted trapezoidal limiting seat 413, it continues to be guided by the guide plate 55 to fall to the designated position, so as to achieve the accuracy of the stacking position after the packaged rice is transferred, and prevent the situation that the stacking is not neat and causes dumping during transportation.

[0053] The specific operation steps of this rice storage online packaging and stacking equipment are as follows:

[0054] When the grabbing mechanism 3 grabs the packaged rice, the grabbing claw 312 enters the gap between the conveying rollers of the conveying device to quickly grab the rice. During this process, the limiting arc plate 324 continues to be close to the front and rear side walls of the packaged rice to ensure that the front and rear of the grabbed packaged rice are centered. The latch 316 is engaged with the inside of the engaging groove 314 to enhance the supporting strength of the bottom of the grabbed packaged rice.

[0055] When the rice leaves the conveying device, the two inverted trapezoidal limiting seats 413 move from top to bottom toward the packaged rice, pushing the left and right sides of the packaged rice to ensure that the grabbed packaged rice is centered on the left and right sides, and at the same time, the downward-moving blocking piece 423 limits the upper side of the packaged rice.

[0056] During the process of transferring the rice to the designated area of ​​the stacking area, the rack 422 drives the guide plate 55 to change from the horizontal initial state to the vertical state. When the rice is transferred to the designated area of ​​the stacking area, the guide plate 55 guides the packaged rice to fall to the designated position.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rice storage online packaging and stacking device, comprising a transfer mechanism and a grabbing mechanism, characterized in that: The transfer mechanism is composed of a rotating assembly and an extension arm on the rotating assembly that can be lifted and lowered, and the extension arm of the transfer mechanism is rotatably connected to an inverted U-shaped rotating seat driven by a motor, and a gripping mechanism and a limiting mechanism are arranged on the rotating seat, and a guiding mechanism is arranged on the limiting mechanism; The grabbing mechanism comprises a grabbing and locking component for grabbing the packaged rice and a front and rear limiting component for continuously centering and limiting the front and rear sides of the packaged rice during the grabbing process; The grabbing and locking assembly includes a support frame, and the side walls of the two vertical sections of the rotating seat close to each other are both rotatably connected with support frames driven by motor 2, and the two support frames are relatively distributed front and back, and the bottom wall of the support frame is evenly fixedly connected with a plurality of L-shaped grabbing claws from left to right; The front and rear limit limit assemblies include a limit limit support rod, and the left side wall of the vertical section of the grab claw is rotatably connected to the limit limit support rod, and the side walls of the front and rear corresponding limit support rods close to each other are each provided with a slide groove, and the slide groove is connected to a slide seat that slides up and down through a spring, and multiple slide seats on the same side are rotatably connected to a limit arc plate together.

2. A rice storage online packaging and stacking device according to claim 1, characterized in that: The grabbing claws on the bottom walls of the two support frames are symmetrically distributed front to back, and the top walls of the horizontal sections of the grabbing claws are rotatably connected with a plurality of ball bearings that are evenly distributed front to back.

3. The rice storage online packaging and stacking equipment according to claim 1, characterized in that: The outer walls of the two front and rear corresponding grabbing claws that are close to each other are respectively fixedly connected with a front wedge block and a rear wedge block, and the outer wall of the front wedge block that is close to the rear wedge block is provided with a locking groove, and the outer wall of the rear wedge block that is close to the front wedge block is slidably connected with a pin that is compatible with the locking groove through an electric slider.

4. The rice storage online packaging and stacking equipment according to claim 1, characterized in that: The lower end of the limit support rod is rotatably connected to a slide seat 2, a slide groove 2 is provided on the left side wall of the horizontal section of the grab claw, and the slide seat 2 slides back and forth on the slide groove 2 through a spring 2.

5. The rice storage online packaging and stacking equipment according to claim 1, characterized in that: The limiting mechanism includes left and right limiting components for centering and limiting the grabbed rice on the left and right sides, the left and right limiting components include a trapezoidal fixed seat, and the bottom walls of the two vertical sections of the rotating seat are fixedly connected with the trapezoidal fixed seats, the sides of the two trapezoidal fixed seats close to each other are inclined, and a sliding groove three is provided on the inclined outer wall of the trapezoidal fixed seat.

6. The rice storage online packaging and stacking equipment according to claim 5, characterized in that: The slide groove three is slidably connected with an inverted trapezoidal limit seat through an electric slider, and the side of the inverted trapezoidal limit seat close to each other is vertical, and multiple balls 2 are evenly arranged and distributed on the side walls of the inverted trapezoidal limit seat close to each other, and the guiding mechanism is arranged on the inverted trapezoidal limit seat.

7. The rice storage online packaging and stacking equipment according to claim 6, characterized in that: The limiting mechanism also includes an upper limit component for limiting the upper side of the grabbed rice, the upper limit component includes a limiting slide rail, and the front and rear side walls of the inverted trapezoidal limiting seat are symmetrically fixedly connected to the limiting slide rail, and the side walls of the left and right corresponding limiting slide rails close to each other are each provided with a slide groove four.

8. The rice storage online packaging and stacking equipment according to claim 7, characterized in that: The slide grooves 4 of the corresponding left and right limit slide rails are slidably connected with racks, and the middle parts of the side walls of the corresponding front and rear racks close to each other are fixedly connected with blocking pieces.

9. The rice storage online packaging and stacking equipment according to claim 8, characterized in that: The guiding mechanism includes a rectangular groove, and a rectangular groove is opened on the bottom wall of the inverted trapezoidal limit seat, the inner top wall of the rectangular groove is rotatably connected with a gear and a second pulley, and the gear and the second pulley are coaxially connected, the middle part of the rack is not provided with teeth, and the upper side wall of the gear is meshed with the end of the rack provided with teeth.

10. The rice storage online packaging and stacking equipment according to claim 9, characterized in that: The bottom wall of the inverted trapezoidal limiting seat is rotatably connected with a pulley 1 corresponding to the upper and lower pulley 2, and the pulley 2 and the pulley 1 are meshed and connected with a synchronous toothed belt, and a guide plate is coaxially fixedly connected to the pulley 1.

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