Automatic feeding equipment suitable for logistics box

Abstract

Automatic feeding equipment suitable for logistics boxes comprises a rack provided with a stopping piece and a lifting frame, and a pair of guide rails is arranged below the stopping piece; the pair of gripper assemblies are hinged to the two sides of the lifting frame respectively; the first elastic piece is elastically connected with the lifting frame and the single gripper assembly; the pair of bracket assemblies are hinged to the other two sides of the lifting frame respectively; when the lifting frame is located on the lower portion, the two bracket assemblies act on the guide rails and are located on the two sides of the logistics box after swinging back to back, and the gripper assemblies overcome the elasticity of the first elastic pieces to grab the logistics box. When the lifting frame is located on the upper portion, after the action of the guide rails is relieved and the bracket assemblies swing in the opposite directions, the lower portions of the bracket assemblies are located below the logistics box and used for guiding the logistics box to slide to the feeding end of the conveying line, and the gripper assemblies act with the stopping pieces to overcome the elasticity of the first elastic pieces to rotate oppositely to loosen the logistics box to the two bracket assemblies; automatic feeding of the logistics box is achieved through single power drive, and the requirement of feeding equipment for energy and the manufacturing and maintaining cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to automatic loading equipment suitable for logistics boxes. Background Art

[0002] In the prior art, when a logistics box loaded with parts is automatically transported and loaded, a combination of moving mechanisms in multiple directions is usually used to achieve the grabbing and automatic transport of the logistics box. The automatic transport process includes actions such as lifting, lateral movement, and grabbing of the gripper, thereby improving production efficiency and the degree of automation of the production line. In order to improve the overall economy of the handling equipment, a combination of multiple drive methods is often used, such as a combination of a servo motor and a cylinder.

[0003] However, the above-mentioned handling equipment uses multiple power drive mechanisms, and each mechanism needs to be equipped with detection and electrical control components, so the overall manufacturing and maintenance costs are high. At the same time, pneumatic drive often has high requirements for compressed air sources.

[0004] When the energy supply conditions at the production line site are limited (for example, there is no compressed air source, or the stability of compressed air cannot meet the requirements of pneumatic drive), and when the overall cost of the production line and the subsequent maintenance cost control requirements are high, multiple and various power-driven handling equipment cannot meet the requirements. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides an automatic loading equipment suitable for logistics boxes, thereby adopting a single power drive to realize automatic loading of logistics boxes, reducing the energy requirements of the loading equipment, and at the same time reducing the overall manufacturing and maintenance costs of the equipment.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An automatic loading device suitable for a logistics box includes a frame and a lifting frame slidably mounted on the frame, a stopper is provided on the upper part of the frame, and further includes:

[0008] A linear drive mechanism, used for driving the lifting frame to move in a vertical direction;

[0009] A pair of guide rails, fixedly arranged below the stopper, wherein the length direction of the guide rails is consistent with the vertical direction;

[0010] A pair of gripper assemblies are arranged opposite to each other and are respectively hingedly mounted on two sides of the lifting frame;

[0011] A first elastic member is used to elastically connect the lifting frame and a single gripper assembly to maintain a tendency for the two gripper assemblies to rotate toward each other;

[0012] A pair of bracket assemblies are arranged opposite to each other and are respectively hingedly mounted on the other two sides of the lifting frame;

[0013] When the lifting frame is located at the bottom, the two bracket assemblies act on the guide rails, swing in opposite directions and are located on both sides of the logistics box, and the gripper assembly acts on the logistics box to overcome the elastic force of the first elastic member and grab the logistics box;

[0014] When the lifting frame is at the top, the action of the guide rail is released and the bracket assembly swings toward each other. The lower part of the bracket assembly is located below the logistics box to guide the logistics box to slide to the upper feed end of the conveyor line. The gripper assembly acts with the stopper to overcome the elastic force of the first elastic member and rotate in opposite directions to release the logistics box onto the two bracket assemblies.

[0015] As a further improvement of the above technical solution:

[0016] The logistics box is provided with a handle groove, and the handle groove corresponds to the gripper assembly. When the gripper assembly grips the logistics box, the lower ends of the two gripper assemblies are located in the handle groove.

[0017] The single gripper assembly comprises a hook claw, the middle part of which is hinged to the lifting frame, and the first elastic member connects the hook claw and the lifting frame to maintain the tendency of the two hook claws to rotate towards each other;

[0018] The lower end of the hook corresponds to the handle groove and is used to hook the handle groove. The upper end of the hook is provided with a first driving member corresponding to the stopper and is used to contact the stopper to drive the two hooks to rotate in opposite directions to release the logistics box.

[0019] A transition portion is provided at the lower end of the hook. During the process of grabbing the logistics box, the transition portion and the logistics box are slidably matched to drive the two hooks to rotate in opposite directions.

[0020] The transition portion is a slope or a roller that is slidably matched with the logistics box.

[0021] It also includes a first hinge, through which the middle portion of the hook is hinged to the lifting frame, and the first elastic member is a torsion spring installed on the first hinge pin.

[0022] The structure of the guide rail includes a vertical portion;

[0023] The single bracket assembly includes a connecting plate, the upper end of which is hinged to the lifting frame, and the lower end of which is provided with a slideway, and the slideway is used to guide the logistics box to slide to the loading end of the conveyor line;

[0024] It also includes a second driving member, which includes a limiting rod and a connecting rod that are connected to each other and have an obtuse axial angle. The connecting rod is located below the limiting rod and is fixedly connected to one end of the connecting plate in the horizontal direction. The length of the limiting rod is greater than the distance between the vertical part and the swing axis of the connecting plate, and the end of the limiting rod is slidably matched with the vertical part.

[0025] The guide rail also includes a guiding portion located at the upper end of the vertical portion, the guiding portion is an inclined surface, and the two guiding portions are in an inverted eight-shaped shape. A roller is provided at the upper end of the limit rod, and the roller is slidably matched with the vertical portion and the guiding portion.

[0026] It also includes a second elastic member and a second hinge, wherein the second elastic member is a torsion spring installed on the second hinge pin, the connecting plate is hinged to the lifting frame through the second hinge, and the second elastic member is used to maintain the tendency of the two connecting plates to swing relative to each other.

[0027] It also includes a first material detection sensor for obtaining the position of the logistics box to be loaded, and then controlling the vertical position of the lifting frame.

[0028] The conveying direction of the feeding end of the conveyor line is perpendicular to the sliding direction of the logistics box, and a receiving platform is provided on the feeding end of the conveyor line;

[0029] The receiving platform includes a support frame fixedly installed relative to the frame, and also includes a swing frame, the swing frame is provided with a rotating shaft, the rotating shaft is rotatably connected to the support frame, the axis of the rotating shaft is perpendicular to the conveying direction, the upper surface of the support frame corresponds to the bracket assembly, and is used to carry the logistics box that slides from the bracket assembly to the upper side of the feed end of the conveyor line;

[0030] It also includes a spring, one end of the swing frame is connected to the support frame through the spring, so that the swing frame swings toward the side opposite to the conveying direction; after the logistics box slides onto the swing frame, the support frame swings toward the conveying direction under the action of the gravity of the logistics box, and the logistics box slides to the loading end of the conveyor line.

[0031] The beneficial effects of the present invention are as follows:

[0032] The present invention has a compact and reasonable structure and is easy to operate. A pair of bracket assemblies and a pair of gripper assemblies are hingedly installed on the lifting frame. The gripper assembly is connected to the lifting frame through a first elastic member, and a linear drive mechanism is used to drive the lifting frame to rise and fall. During the descent of the lifting frame, the logistics box is automatically grabbed by the action of the gripper assembly and the logistics box, and automatic swing is achieved by the action of the bracket assembly and the guide rail. When the bracket assembly forms a guide channel under the logistics box, the logistics box is automatically released by the action of the gripper assembly and the stopper above the lifting frame, so that the logistics box slides along the guide channel to the loading end of the conveyor line, and automatic loading of the logistics box is achieved in a single power-driven manner, thereby reducing the energy requirements of the loading equipment and reducing the overall manufacturing and maintenance costs of the equipment.

[0033] At the same time, the present invention also has the following advantages:

[0034] (1) By adopting a spring-type hinge to hinge the hooks of the lifting frame and the gripper assembly and elastically connect them at the same time, the connection and limiting structure of the lifting frame and the gripper assembly are simplified; by adopting a spring-type hinge to hinge the connecting plate of the lifting frame and the bracket assembly and elastically connect them at the same time, the connection and limiting structure of the lifting frame and the bracket assembly are simplified, and the internal space utilization rate of the bracket assembly is increased.

[0035] (2) By setting a guide portion at the upper end of the guide rail and a roller at the end of the second driving member of the bracket assembly, the roller slides with the vertical portion and the guide portion to achieve smooth sliding of the bracket assembly during the rising process and smooth change of posture during the swinging process.

[0036] (4) By setting a first material detection sensor on the lifting frame that moves synchronously with the gripper assembly, during the descent of the lifting frame, the height position of the first logistics box detected by the first material detection sensor is controlled to control the descent position of the lifting frame, thereby realizing sequential grabbing of multiple stacked logistics boxes and realizing automatic destacking of logistics boxes in a simple and low-cost manner.

[0037] (5) When the conveying direction of the loading end of the conveyor line is perpendicular to the sliding direction of the logistics box, a receiving table with a swinging function is provided on the loading end of the conveyor line to receive the logistics box from the bracket assembly. When the logistics box falls onto the receiving table, it automatically slides in the conveying direction due to the action of gravity, thereby realizing the unpowered transfer of the logistics box. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the present invention.

[0039] Figure 2 It is a structural schematic diagram (main part) of the present invention.

[0040] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0041] Figure 4 Another viewing angle (main part) of the structural schematic diagram of the present invention.

[0042] Figure 5 It is a structural schematic diagram of the gripper assembly of the present invention.

[0043] Figure 6 It is a schematic structural diagram of the gripper assembly of the present invention (another embodiment).

[0044] Figure 7 The working state of the present invention when grabbing a logistics box is shown in FIG. Figure 1 .

[0045] Figure 8 The working state of the present invention when grabbing a logistics box is shown in FIG. Figure 2 .

[0046] Fig. 9 The working state of the present invention when lifting the logistics box is shown in FIG. Figure 1 .

[0047] Fig.10 The working state of the present invention when lifting the logistics box is shown in FIG. Figure 2 .

[0048] Fig.11 It is a schematic diagram of the working state of the present invention when transferring the logistics box.

[0049] Fig.12 It is a structural schematic diagram of the present invention (Example 3).

[0050] in:

[0051] 1. Frame; 10. Lifting frame; 11. Guide shaft;

[0052] 2. Guide rail; 21. Guide portion; 22. Vertical portion;

[0053] 3. Linear drive mechanism; 31. Motor; 32. Lead screw; 33. Lead screw nut;

[0054] 4. bracket assembly; 41. slideway; 441. limit rod; 442. connecting rod; 42. connecting plate; 43. second hinge; 44. second driving member; 45. second elastic member;

[0055] 50. first elastic member; 5. gripper assembly; 51. transition portion; 52. hook; 53. first hinge; 54. first driving member;

[0056] 6. Stopper;

[0057] 7. Logistics box; 71. Handle slot; 72. First material detection sensor; 73. Second material detection sensor; 74. Third material detection sensor;

[0058] 8. Feeding end of conveyor line; 81. Feeding platform; 811. Support frame; 812. Swing frame; 813. Rotating shaft; 814. Spring; 9. Shelf. DETAILED DESCRIPTION

[0059] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0060] The embodiment of the present application provides an automatic loading device suitable for logistics boxes to solve the problem in the prior art that when the energy supply conditions of the production line site are limited and the overall cost and subsequent maintenance cost control requirements of the production line are high, multiple and various power-driven handling equipment cannot meet the requirements. A single power drive is used to convert the vertical movement into the movement of multiple functional components to achieve the material lifting, grabbing and material transfer actions during the loading and handling process. The above technical solution is described in detail below in conjunction with the drawings in the specification and specific facts.

[0061] Embodiment 1:

[0062] like Figure 1-Figure 4 As shown, the automatic loading equipment suitable for logistics boxes in this embodiment includes a frame 1 and a lifting frame 10 slidably installed on the frame 1, a stopper 6 is provided on the upper part of the frame 1, and also includes a linear drive mechanism 3, a pair of guide rails 2, a first elastic member 50 and a pair of bracket assemblies 4.

[0063] A linear drive mechanism 3, used to drive the lifting frame 10 to move in a vertical direction;

[0064] A pair of guide rails 2 are fixedly arranged below the stopper 6, and the length direction of the guide rails 2 is consistent with the vertical direction;

[0065] A pair of gripper assemblies 5 are arranged opposite to each other and are hingedly mounted on both sides of the lifting frame 10;

[0066] The first elastic member 50 is used to elastically connect the lifting frame 10 and the single gripper assembly 5 to maintain the tendency of the two gripper assemblies 5 to rotate toward each other;

[0067] A pair of bracket assemblies 4 are arranged opposite to each other and are hingedly mounted on the other two sides of the lifting frame 10;

[0068] When the lifting frame 10 is located at the bottom, the two bracket assemblies 4 act on the guide rail 2, swing back and forth and are located on both sides of the logistics box 7, and the gripper assembly 5 acts on the logistics box 7 to overcome the elastic force of the first elastic member 50 and grab the logistics box 7;

[0069] When the lifting frame 10 is at the top, the action of the guide rail 2 is released and the bracket assembly 4 swings toward each other. The lower part of the bracket assembly 4 is located below the logistics box 7, which is used to guide the logistics box 7 to slide to the upper feed end 8 of the conveyor line. The gripper assembly 5 acts with the stopper 6 to overcome the elastic force of the first elastic member 50 and rotate in opposite directions to release the logistics box 7 to the two bracket assemblies 4.

[0070] like Figure 1 , Figure 2 As shown, the frame 1 is arranged on one side of the feeding end 8 of the conveyor line; the stopper 6 is the upper frame of the frame 1, and the lower part between the guide rail 2 and the feeding end 8 of the conveyor line is used to place the logistics box 7 to be loaded, and the logistics box 7 can be supported and placed by the shelf 9 (such as Figure 1 As shown), the logistics box 7 can be manually transported to the shelf 9, or it can be transferred to the shelf 9 by automatic transportation. Of course, the shelf 9 can be a part of the transportation tool structure.

[0071] The linear drive mechanism 3 is arranged on the frame 1, preferably adopting an electric drive mode, which can be driven by a servo motor or a servo electric cylinder. The movable end of the linear drive mechanism 3 is connected to the lifting frame 10. Specifically, Figure 4 As shown, a group of guide shafts 11 are installed on the frame 1, and the lifting frame 10 is slidably connected to the guide shafts 11. The linear drive mechanism 3 includes a motor 31 and a screw rod 32 that is transmission-connected to the motor 31. A screw nut 33 is installed on the screw rod 32, and the screw nut 33 is fixedly connected to the lifting frame 10.

[0072] like Figure 2 As shown, two guide rails 2 are spaced apart and fixedly mounted on the frame 1 , and the two guide rails 2 correspond to the two bracket assemblies 4 one by one.

[0073] The logistics box 7 to be loaded can be one piece.

[0074] The working process of the automatic loading device for logistics boxes in this embodiment is as follows:

[0075] 1. The lifting frame 10 descends to grab the logistics box 7 on the shelf 9. During this process, the two bracket assemblies 4 swing in opposite directions to avoid the logistics box 7 under the lifting frame 10. When the gripper assembly 5 grabs the logistics box 7, the bracket assembly 4 is located on both sides of the logistics box 7. Figure 7 As shown, the process of grabbing the logistics box 7 is as follows Figure 8 shown.

[0076] 2. During the ascending process of the lifting frame 10, the bracket assembly 4 and the upper end of the guide rail 2 act, and the two bracket assemblies 4 gradually swing toward each other until the two bracket assemblies 4 surround the two sides of the logistics box 7, forming a guide channel for guiding the logistics box 7 to slide to the feed end 8 of the conveyor line, such as Fig. 9 , Fig.10 shown.

[0077] 3. When the lifting frame 10 is at the uppermost position, the gripper assembly 5 and the stopper 6 work together to overcome the elastic force of the first elastic member 50 and rotate in opposite directions, and then release the logistics box 7 to the two bracket assemblies 4. Fig.11 shown.

[0078] In the above process, only the height position of the lifting frame 10 needs to be controlled and monitored, and the manufacturing and maintenance costs of the control system are also relatively low.

[0079] A pair of bracket assemblies 4 and a pair of gripper assemblies 5 are hingedly installed on the lifting frame 10, the gripper assembly 5 is connected to the lifting frame 10 through a first elastic member 50, and a linear drive mechanism 3 is used to drive the lifting frame 10 to rise and fall. During the descent of the lifting frame 10, the logistics box 7 is automatically grabbed by the gripper assembly 5 and the logistics box 7, and the automatic swing is achieved by the bracket assembly 4 and the guide rail 2. When the bracket assembly 4 forms a guide channel under the logistics box 7, the logistics box 7 is automatically released by the gripper assembly 5 and the stopper 6 above the lifting frame 10, so that the logistics box 7 slides along the guide channel to the feeding end 8 of the conveyor line, and the automatic loading of the logistics box 7 is realized in a single power-driven manner, which reduces the energy requirements of the loading equipment and reduces the overall manufacturing and maintenance costs of the equipment.

[0080] In this embodiment, if Figure 1 , Figure 8 As shown, a handle groove 71 is provided on the logistics box 7 , and the handle groove 71 corresponds to the gripper assembly 5 . When the gripper assembly 5 grips the logistics box 7 , the lower ends of the two gripper assemblies 5 are located in the handle groove 71 .

[0081] Specifically, the logistics box 7 can be a standard turnover box or a customized frame-type transfer tooling, as long as the rectangular shape is maintained and handle grooves 71 are set on both sides. The handle grooves 71 are rectangular grooves with a certain depth. A pair of gripper assemblies 5 and a pair of bracket assemblies 4 correspond to two sets of opposite sides of the logistics box 7. Figure 1 , Figure 8 As shown, when the gripper assembly 5 grasps the logistics box 7, the gripper assembly 5 maintains a tendency to rotate toward each other under the action of the first elastic member 50, and the two gripper assemblies 5 contact the upper edge of the logistics box 7 and rotate away from each other to open. After the lower end of the gripper assembly 5 is located on the outside of the handle groove 71, it rotates toward each other under the elastic force of the first elastic member 50, so that the lower end of the gripper assembly 5 is located in the handle groove 71 and hooks the side wall position of the handle groove 71.

[0082] Further, the single gripper assembly 5 includes a hook 52, the middle portion of the hook 52 is hinged to the lifting frame 10, and the first elastic member 50 connects the hook 52 and the lifting frame 10 to maintain the tendency of the two hooks 52 to rotate toward each other;

[0083] The lower end of the hook 52 corresponds to the handle groove 71 and is used to hook the handle groove 71. The upper end of the hook 52 is provided with a first driving member 54 corresponding to the stopper 6, which is used to contact the stopper 6 and drive the two hooks 52 to overcome the elastic force of the first elastic member 50 to rotate in opposite directions to release the logistics box 7.

[0084] A transition portion 51 is provided at the lower end of the hook claw 52 . During the process of grabbing the logistics box 7 , the transition portion 51 and the logistics box 7 are slidably matched to drive the two hook claws 52 to rotate in opposite directions.

[0085] In this embodiment, the transition portion 51 is an inclined surface that slides with the logistics box 7. Figure 5 The specific inclined surface is slidably matched with the upper edge of the logistics box 7 to enable the two hook claws 52 to rotate in opposite directions.

[0086] In another embodiment, the transition portion 51 is a roller that slides with the logistics box 7. Figure 6 Specifically, a fixed shaft is arranged below the hooking part of the hook claw 52, ​​rollers are rotatably mounted at both ends of the fixed shaft, and the rollers are slidably matched with the upper edge and side of the logistics box 7 to make the two hook claws 52 rotate back to back and slide downward.

[0087] In this embodiment, the first elastic member 50 can be a spring in a stretched state, and a first limiting structure (not shown in the drawings) can be designed on the lifting frame 10 or the hook 52 to limit the swing amplitude of the hook 52. When the two hooks 52 are in a grasping state, the rotation position of the hook 52 is limited by the first limiting structure to ensure the minimum distance between the two hooks 52. The minimum distance is used to ensure that the transition portion 51 can slide relative to the upper edge of the logistics box 7 and can hook the handle groove 71.

[0088] In order to simplify the structure while keeping the function of the gripper assembly 5 unchanged, in another embodiment, as Figure 5 -like Figure 8 As shown, the first hinge 53 is also included, and the middle part of the hook 52 is hinged to the lifting frame 10 through the first hinge 53, and the first elastic member 50 is a torsion spring installed on the pin of the first hinge 53. Specifically, the combination of the first hinge 53 and the first elastic member 50 is a spring-type hinge, which is a commercially available product; the first hinge 53 is located on the outside of the hook 52, and the middle upper end surface of the hook 52 is abutted against the lower surface of the lifting frame 10 as a first limiting structure, simplifying the connection structure of the gripper assembly 5 and the lifting frame 10.

[0089] In the above embodiments, the lifting frame 10 and the hook 52 of the gripper assembly 5 are hingedly connected and elastically connected by a spring hinge, thereby simplifying the connection and limiting structure between the lifting frame 10 and the gripper assembly 5.

[0090] In this embodiment, Figure 3As shown, the structure of the guide rail 2 includes a vertical portion 22;

[0091] The single bracket assembly 4 includes a connecting plate 42, the upper end of the connecting plate 42 is hinged to the lifting frame 10, and the lower end of the connecting plate 42 is provided with a slideway 41, which is used to guide the logistics box 7 to slide to the feed end 8 of the conveyor line;

[0092] It also includes a second driving member 44, which includes a limiting rod 441 and a connecting rod 442 that are connected to each other and have an obtuse axial angle. The connecting rod 442 is located below the limiting rod 441 and is fixedly connected to one end of the connecting plate 42 in the horizontal direction. The length of the limiting rod 441 is greater than the distance between the vertical portion 22 and the swing axis of the connecting plate 42, and the end of the limiting rod 441 is slidably matched with the vertical portion 22.

[0093] Specifically, Figure 3 , Fig.10 , Fig.11 The cross-sectional shape of the connecting plate 42 and the slide 41 is L-shaped, forming a non-closed-loop guide channel on both sides and the bottom of the logistics box 7. The upper surface of the slide 41 is a guide surface, and the guide surface is inclined toward the upper feed end 8 of the conveyor line. The slide 41 can be a smooth strip; the guide rail 2 is made of profile angle steel.

[0094] In another embodiment, in order to facilitate the smooth sliding of the limiting rod 441 on the guide rail 2, as shown in FIG. Figure 3 , Fig. 9 As shown, the guide rail 2 also includes a guide portion 21 located at the upper end of the vertical portion 22. The guide portion 21 is an inclined surface. The two guide portions 21 are in an inverted eight-shaped shape. A roller is provided at the upper end of the limit rod 441, and the roller is slidably matched with the vertical portion 22 and the guide portion 21.

[0095] Specifically, the included angle between the guide portion 21 and the horizontal direction is equal to the axial included angle between the limiting rod 441 and the connecting rod 442 .

[0096] In the above embodiments, a guide portion 21 is provided at the upper end of the guide rail 2, and a roller is provided at the end of the second driving member 44 of the bracket assembly 4. The roller slides with the vertical portion 22 and the guide portion 21 to achieve smooth sliding of the bracket assembly 4 during the rising process and smooth changes in posture during the swinging process.

[0097] In this embodiment, after the bracket assembly 4 is separated from the guide rail 2, the bracket assembly 4 can be kept naturally drooping by gravity, thereby ensuring that the two slideways 41 are both located below the captured logistics box 7, but the center of gravity of the bracket assembly 4 needs to be specially designed to ensure that the two bracket assemblies 4 are separated from the relative positions of the guide rail 2, such as Fig.10 shown.

[0098] In another embodiment, in order to ensure that the two slides 41 of the bracket assembly 4 can maintain a stable distance after the second driving member 44 is separated from the limit of the guide rail 2, a second limiting structure (not shown in the drawings) can be designed on the lifting frame 10 or the connecting plate 42 to limit the relative swing amplitude of the bracket assembly 4 so that the minimum distance between the slides 41 of the two bracket assemblies 4 is adapted to the bottom width of the logistics box 7, and a second elastic member 45 is used to connect the lifting frame 10 and the connecting plate 42 to maintain the relative swing tendency of the two connecting plates 42.

[0099] In other embodiments, in order to further simplify the structure of the bracket assembly 4 and increase the internal space utilization of the bracket assembly 4 based on the above functions, as shown in FIG. Figure 3 As shown, the second elastic member 45 and the second hinge 43 are also included. The second elastic member 45 is a torsion spring installed on the pin of the second hinge 43. The connecting plate 42 is hinged to the lifting frame 10 through the second hinge 43. The second elastic member 45 is used to maintain the relative swinging tendency of the two connecting plates 42. Specifically, the second hinge 43 is installed on the outer side of the connecting plate 42, and the end surface of the connecting plate 42 abuts against the lower surface of the lifting frame 10 as a second limiting structure; the combination of the second hinge 43 and the second elastic member 45 is a spring-type hinge, which is a commercially available product.

[0100] In the above embodiments, the lifting frame 10 and the connecting plate 42 of the bracket assembly 4 are hinged and elastically connected by using a spring hinge, thereby simplifying the connection and limiting structure between the lifting frame 10 and the bracket assembly 4 and increasing the internal space utilization of the bracket assembly 4.

[0101] Embodiment 2:

[0102] When the logistics box 7 to be loaded is a plurality of logistics boxes 7 stacked up and down, it is a stack of Figure 1 As shown, the feeding equipment needs to control the position of the lifting frame 10 when descending to grab the logistics box 7, and then control the position of the gripper assembly 5.

[0103] On the basis of the first embodiment, the automatic loading equipment for logistics boxes of this embodiment further includes a first material detection sensor 72 for obtaining the position of the logistics box 7 to be loaded, and then controlling the vertical position of the lifting frame 10 when grabbing the logistics box 7.

[0104] Specifically, the first material detection sensor 72 is a photoelectric sensor, which is fixedly mounted on the lifting frame 10 and is used to detect the material box 7 located between the bracket assemblies 4 from the side.

[0105] The process of the automatic loading device for logistics boxes in this embodiment grabbing the material box 7 is as follows:

[0106] The first step is to stack multiple logistics boxes 7 of the same specification on a shelf 9;

[0107] Step 2: The linear drive mechanism 3 drives the lifting frame 10 to descend, and the bracket assemblies 4 swing in opposite directions. When the first material detection sensor 72 detects that there is a logistics box 7 between the two bracket assemblies 4, that is, the first logistics box 7 to be loaded at the top, the lifting frame 10 continues to descend a certain distance, so that the gripper assembly 5 contacts the first logistics box 7 and grabs the first logistics box 7;

[0108] Step 3: The linear drive mechanism 3 drives the lifting frame 10 to rise. When it rises to the upper end of the guide rail 2, the bracket assembly 4 swings toward each other so that the slide 41 is located below the logistics box 7. The lifting frame 10 continues to rise until the gripper assembly 5 acts on the stopper 6. The gripper assembly 5 rotates in opposite directions to release the logistics box 7 to the two bracket assemblies 4. The logistics box 7 slides from the slide 41 to the feed end 8 of the conveyor line.

[0109] Repeat the second and third steps until all the logistics boxes 7 on the rack 9 are transferred to the upper feed end 8 of the conveyor line.

[0110] Furthermore, in order to confirm whether all the logistics boxes 7 on the shelf 9 have been grabbed, a second material detection sensor 73 is provided on the rack 1 to detect whether there are any logistics boxes 7 on the shelf 9. The second material detection sensor 73 corresponds to the side of the lowest logistics box 7 on the shelf 9.

[0111] By setting a first material detection sensor 72 on the lifting frame 10 that moves synchronously with the gripper assembly 5, during the descending process of the lifting frame 10, the descending position of the lifting frame 10 is controlled according to the height position of the first logistics box 7 detected by the first material detection sensor 72, so that multiple stacked logistics boxes 7 can be grabbed in sequence, and automatic destacking of the logistics boxes 7 can be achieved in a simple and low-cost manner.

[0112] Since the handle groove 71 has a relatively large spatial range, the automatic loading device of this embodiment does not have high requirements on the placement accuracy and placement posture of the logistics box 7. Figure 1 As shown, the logistics box 7 can be tilted at a certain angle.

[0113] Embodiment three:

[0114] The conveying direction of the conveyor line connected to the automatic loading device can be consistent with the sliding direction of the logistics box 7, such as Figure 1 As shown, the logistics box 7 can slide directly from the slide 41 to the loading end 8 of the conveyor line, as long as the position of the loading end 8 of the conveyor line can avoid the logistics box 7 moving upward and can realize the transition from the logistics box 7 to the conveyor line.

[0115] Based on the above embodiments, Fig.12 As shown, the conveying direction of the upper feed end 8 of the conveyor line of this embodiment is perpendicular to the sliding direction of the logistics box 7, and a receiving platform 81 is provided on the upper feed end 8 of the conveyor line;

[0116] The receiving platform 81 includes a support frame 811 fixedly installed relative to the frame 1, and also includes a swing frame 812, on which a rotating shaft 813 is provided, and the rotating shaft 813 is rotatably connected to the support frame 811, and the axis of the rotating shaft 813 is perpendicular to the conveying direction. The upper surface of the support frame 811 corresponds to the bracket assembly 4, and is used to carry the logistics box 7 that slides from the bracket assembly 4 to the upper side of the feed end 8 of the conveying line;

[0117] It also includes a spring 814, one end of the swing frame 812 is connected to the support frame 811 through the spring 814, so that the swing frame 812 swings toward the side opposite to the conveying direction; after the logistics box 7 slides onto the swing frame 812, the support frame 811 swings toward the conveying direction under the action of the gravity of the logistics box 7, and the logistics box 7 slides onto the upper feed end 8 of the conveyor line.

[0118] Specifically, the support frame 811 is connected to the frame body of the conveyor line; a plurality of bull's eye bearings are provided on the upper surface of the swing frame 812 to facilitate the sliding of the logistics box 7; the rotating shaft 813 is arranged in the middle part of the swing frame 812, biased towards the spring 814. When the logistics box 7 slides onto the swing frame 812, it swings after overcoming the pulling force of the spring 814 under the action of gravity.

[0119] When the conveying direction of the loading end 8 of the conveyor line is perpendicular to the sliding direction of the logistics box 7, a receiving platform 81 with a swinging function is provided on the loading end 8 of the conveyor line to receive the logistics box 7 from the bracket assembly 4. When the logistics box 7 falls onto the receiving platform 81, it automatically slides in the conveying direction due to the action of gravity, thereby realizing the unpowered transfer of the logistics box 7.

[0120] like Fig.12 As shown, a third material detection sensor 74 is also included, which is used to detect whether there is a logistics box 7 on the feed end 8 of the conveyor line, or whether the logistics box 7 is successfully transported from the feed end 8 of the conveyor line to the downstream.

[0121] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. An automatic loading device suitable for logistics boxes, characterized by: The invention comprises a frame (1) and a lifting frame (10) slidably mounted on the frame (1), a stopper (6) is arranged on the upper part of the frame (1), and further comprises: A linear drive mechanism (3) for driving the lifting frame (10) to move in a vertical direction; A pair of guide rails (2) are fixedly arranged below the stopper (6), and the length direction of the guide rails (2) is consistent with the vertical direction; A pair of gripper assemblies (5) are arranged opposite to each other and are respectively hingedly mounted on two sides of the lifting frame (10); A first elastic member (50) is used to elastically connect the lifting frame (10) and a single gripper assembly (5) to maintain a tendency for the two gripper assemblies (5) to rotate towards each other; A pair of bracket assemblies (4) are arranged opposite to each other and are respectively hingedly mounted on the other two sides of the lifting frame (10); When the lifting frame (10) is located at the bottom, the two bracket assemblies (4) act on the guide rail (2), swing in opposite directions and are located on both sides of the logistics box (7), and the gripper assembly (5) acts on the logistics box (7) to overcome the elastic force of the first elastic member (50) and grasp the logistics box (7); When the lifting frame (10) is located at the top, the action of the guide rail (2) is released and the bracket assembly (4) swings towards each other. The lower part of the bracket assembly (4) is located below the logistics box (7) to guide the logistics box (7) to slide to the upper feed end (8) of the conveyor line. The gripper assembly (5) and the stopper (6) work together to overcome the elastic force of the first elastic member (50) and rotate in opposite directions to release the logistics box (7) onto the two bracket assemblies (4).

2. The automatic loading device for logistics boxes according to claim 1, characterized in that: The logistics box (7) is provided with a handle groove (71), and the handle groove (71) corresponds to the gripper assembly (5). When the gripper assembly (5) grips the logistics box (7), the lower ends of the two gripper assemblies (5) are located in the handle groove (71).

3. The automatic loading device for logistics boxes according to claim 2, characterized in that: The single gripper assembly (5) comprises a hook (52), the middle part of the hook (52) is hinged to the lifting frame (10), and the first elastic member (50) connects the hook (52) and the lifting frame (10) to maintain the tendency of the two hooks (52) to rotate towards each other; The lower end of the hook (52) corresponds to the handle groove (71) and is used to hook the handle groove (71); the upper end of the hook (52) is provided with a first driving member (54) corresponding to the stopper (6) and is used to contact the stopper (6) to drive the two hooks (52) to rotate in opposite directions to release the logistics box (7); A transition portion (51) is provided at the lower end of the hook claw (52). During the process of grabbing the logistics box (7), the transition portion (51) and the logistics box (7) are slidably matched to drive the two hook claws (52) to rotate in opposite directions.

4. The automatic loading device for logistics boxes according to claim 3 is characterized in that: The transition portion (51) is a slope or a roller that is slidably matched with the logistics box (7).

5. The automatic loading device for logistics boxes according to claim 3 is characterized in that: It also includes a first hinge (53), the middle part of the hook (52) is hinged to the lifting frame (10) through the first hinge (53), and the first elastic member (50) is a torsion spring installed on the pin shaft of the first hinge (53).

6. The automatic loading device for logistics boxes according to claim 1, characterized in that: The structure of the guide rail (2) includes a vertical portion (22); The single bracket assembly (4) comprises a connecting plate (42), the upper end of the connecting plate (42) is hinged to the lifting frame (10), and the lower end of the connecting plate (42) is provided with a slideway (41), and the slideway (41) is used to guide the logistics box (7) to slide to the upper feed end (8) of the conveyor line; It also includes a second driving member (44), which includes a limiting rod (441) and a connecting rod (442) which are connected to each other and have an obtuse axial angle, and the connecting rod (442) is located below the limiting rod (441) and is fixedly connected to one end of the connecting plate (42) in the horizontal direction, the length of the limiting rod (441) is greater than the distance between the vertical part (22) and the swing axis of the connecting plate (42), and the end of the limiting rod (441) is slidably matched with the vertical part (22).

7. The automatic loading device for logistics boxes according to claim 6, characterized in that: The guide rail (2) further comprises a guide portion (21) located at the upper end of the vertical portion (22); the guide portion (21) is an inclined surface; the two guide portions (21) are in an inverted eight-shaped shape; a roller is provided at the upper end of the limit rod (441); the roller is slidably matched with the vertical portion (22) and the guide portion (21).

8. The automatic loading device for logistics boxes according to claim 6, characterized in that: It also includes a second elastic member (45) and a second hinge (43), wherein the second elastic member (45) is a torsion spring installed on the pin of the second hinge (43), the connecting plate (42) is hinged to the lifting frame (10) through the second hinge (43), and the second elastic member (45) is used to maintain the tendency of the two connecting plates (42) to swing relative to each other.

9. The automatic loading device for logistics boxes according to claim 1, characterized in that: It also includes a first material detection sensor (72) for obtaining the position of the logistics box (7) to be loaded, thereby controlling the vertical position of the lifting frame (10).

10. The automatic loading device for logistics boxes according to claim 1, characterized in that: The conveying direction of the upper feed end (8) of the conveyor line is perpendicular to the sliding direction of the logistics box (7), and a receiving platform (81) is provided on the upper feed end (8) of the conveyor line; The receiving platform (81) comprises a support frame (811) fixedly mounted relative to the frame (1), and also comprises a swing frame (812), the swing frame (812) is provided with a rotating shaft (813), the rotating shaft (813) is rotatably connected to the support frame (811), the axis of the rotating shaft (813) is perpendicular to the conveying direction, the upper surface of the support frame (811) corresponds to the bracket assembly (4), and is used for carrying the logistics box (7) that slides from the bracket assembly (4) to above the upper feed end (8) of the conveyor line; It also includes a spring (814), one end of the swing frame (812) is connected to the support frame (811) through the spring (814), so that the swing frame (812) swings toward the side opposite to the conveying direction; after the logistics box (7) slides onto the swing frame (812), the support frame (811) swings toward the conveying direction under the action of the gravity of the logistics box (7), and the logistics box (7) slides onto the upper feed end (8) of the conveyor line.

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