One-key switching tray bin

Abstract

The invention relates to a tray bin, in particular to a one-key switching tray bin, and solves the technical problems that an existing tray bin cannot meet the requirements of trays of various specifications, potential safety hazards exist when first insertion teeth are rotationally opened, precision is insufficient due to the fact that a guide device is not arranged, and the trays are prone to being clamped due to the fact that the trays are irregularly placed during transferring. The stroke of the limiting execution unit, the stroke of the lifting execution unit and the stroke of the gear shaping execution unit are adjusted through the external control unit, the requirements of trays of various specifications are met, the gear shaping assembly adopts a sliding fit mode, the gear shaping execution unit drives a sliding frame to achieve stretching and retracting of gear shaping, and the gear shaping efficiency is improved. The potential safety hazard that the tray falls off when the tray is rotationally opened is avoided; the guide assembly is arranged between the lifting frame and the limiting mounting frame, the movement precision of the lifting frame is guaranteed, and four limiting execution units and four limiting rods in the limiting assembly are matched to push and jack the four corners of the tray placed by the forklift in order.

Description

TECHNICAL FIELD

[0001] The present application relates to a tray warehouse, in particular to a one-key switching tray warehouse. BACKGROUND

[0002] In the packaging industry, the transfer of trays is generally carried out by a tray warehouse. Figures 1-3 As shown in the figure, the existing tray warehouse is connected with a lifting tray frame 06 on the movable end of the first lifting cylinder 01. When the forklift transports a plurality of stacked trays into the tray warehouse and places them on the first toothed gear 04, the tray transfer process begins. First, the external control unit controls the movable end of the first lifting cylinder 01 to rise, driving the lifting tray frame 06 to rise to a specified position. Then the external control unit controls the first toothed gear cylinder 02 to act, driving the rotating shaft 03 to rotate. The first toothed gear 04 provided on the rotating shaft 03 rotates to open, at which time all the trays will fall onto the lifting tray frame 06. Then the first lifting cylinder 01 falls, causing the bottommost tray to fall onto the conveyor 05. Then the first toothed gear cylinder 02 acts, driving the first toothed gear 04 to rotate and insert into the second tray from bottom to top. The conveyor 05 acts to transport the bottommost tray away. Then the above tray transfer process is repeated to transport the trays one by one through the conveyor 05.

[0003] However, the tray warehouse with the above structure has the following problems in use: 1) The first toothed gear 04 rotates to open, and its limited stroke is short, which cannot meet the trays of various specifications; 2) When the first toothed gear 04 rotates to open, there is still a certain distance between the highest point of the lifting tray frame 06 and the tray. After the first toothed gear 04 is completely rotated to open, the tray will directly fall downward onto the lifting tray frame 06, which may cause safety hazards; 3) The movable end of the first lifting cylinder 01 is not provided with a guide device, which cannot guarantee a straight line when lifting in the vertical direction, resulting in insufficient precision; 4) If the forklift places the trays irregularly, the tray may be stuck during the transfer. SUMMARY

[0004] The present application aims to solve the technical problems that the existing tray warehouse cannot meet the trays of various specifications, the first toothed gear rotates to open, there is a safety hazard, no guide device is provided, resulting in insufficient precision, and the tray is easily stuck during the transfer, and provides a one-key switching tray warehouse.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A one-key switching tray warehouse, comprising a rack, a tray conveyor and a lifting assembly; the special feature is that: The limiting assembly and the gear shaping assembly are further included; The tray conveyor is arranged at the bottom of the frame, the frame includes four vertical columns distributed in a rectangular shape, and a cross beam is arranged between the top portions of two vertical columns corresponding to the two ends of the tray conveyor in the conveying direction; The lifting assembly includes four lifting execution units and two lifting frames, the four lifting execution units are arranged at the inner side positions of the top portions of the four vertical columns and are hingedly connected to the inner side surfaces of the vertical columns at the tail ends, and the two lifting frames are respectively hingedly connected to the movable ends of the two lifting execution units at the same end side; The limiting assembly includes four limiting execution units and four limiting rods, two limiting rods are arranged on the inner side surface of each cross beam, the four limiting rods are distributed in a rectangular shape, the top ends of the limiting rods are hingedly connected to the inner side surface of the cross beam, a limiting mounting frame is arranged between the two vertical columns at the same end side, the movable ends of the four limiting execution units are respectively hingedly connected to the four limiting rods, the tail ends of the two limiting execution units at the same end side are hingedly connected to the same limiting mounting frame, and all the limiting rods are located between the two lifting frames; The gear shaping assembly includes a gear shaping execution unit and a gear shaping piece, two gear shaping execution units are arranged at the bottom of each lifting frame, the tail ends of the two gear shaping execution units are hingedly connected to the lifting frame, a sliding frame is hingedly connected to the movable ends of the two gear shaping execution units, and the movable ends of the two gear shaping execution units are arranged opposite to each other; the sliding frame is slidingly connected to the lifting frame, the two sliding frames at the same side of the two lifting frames are connected through the gear shaping piece, the gear shaping piece is provided with a plurality of gear shaping pieces, one of the gear shaping pieces is provided with a detection sensor above the gear shaping piece for detecting the tray, and the detection sensor, the lifting execution unit, the gear shaping execution unit and the limiting execution unit are used for electrical connection with an external control unit; A guide assembly is arranged between the lifting frame and the limiting mounting frame, and is used for limiting the lifting frame from moving along the vertical direction with the movable end of the lifting execution unit.

[0006] Further, the inner side surface of each limiting mounting frame is divided into two groups of mounting ears, each group of mounting ears includes two sub-mounting ears, a limiting clamping pipe is connected between the two sub-mounting ears, the limiting execution unit is located at the top surface of the limiting clamping pipe, the outer end of the limiting clamping pipe is provided with a notch, and the limiting rod is located in the notch of the limiting clamping pipe.

[0007] Further, the guide assembly includes a guide rod, a pulley and a guide groove; The guide rod is arranged at the middle position of the top of the lifting frame, and the pulley is rotationally connected to the guide rod; An installation shaft is arranged between the two groups of mounting ears on the same limiting mounting frame, the guide groove is arranged on the installation shaft, and the pulley is located in the guide groove.

[0008] Further, the guide assembly further includes a blocking rod; The column is a rectangular tube, and each lifting frame is provided with two blocking rods at the top of two ends, and the length direction of the blocking rod is perpendicular to the length direction of the column.

[0009] The inner side of each blocking rod is rotatably provided with two guide wheels, and the two guide wheels are respectively in abutment with two outer walls opposite to the corresponding column.

[0010] Further, the rack further comprises a first inclined strut and a second inclined strut; The first inclined strut has four ends, and one end of the four first inclined struts is connected with the outer side of the four columns, and the limiting mounting frame is connected between the two first inclined struts on the same end side, and the position close to the bottom of the four columns is connected with the first inclined strut through the first connecting rod; The second inclined strut has two ends, and one end of the two second inclined struts is connected with one end of the two cross beams, and the bottom of the two columns close to the second inclined strut is connected with the second inclined strut through the second connecting rod.

[0011] Further, one end of the two cross beams not connected with the second inclined strut is connected through the limiting shaft, and a plurality of limiting square tubes are arranged on the limiting shaft in the axial direction, one end of the limiting square tube is connected with the outer wall of the limiting shaft, and the length direction of the limiting square tube is parallel to the length direction of the column.

[0012] Further, the sliding frame comprises a first square tube, a vertical square tube and a second square tube, the first square tube is slidingly arranged in the lifting frame, and the two ends of the vertical square tube are respectively connected with the end of the first square tube and the second square tube; the second square tubes located on the same side are connected through the pinion gear, and the movable end of each pinion gear executing unit is hinged with the vertical square tube of the corresponding sliding frame.

[0013] Further, the pinion gear comprises a pinion gear mounting rod, a first reinforcing rib, a second reinforcing rib and a third reinforcing rib; The pinion gear is arranged on the pinion gear mounting rod, and the length direction of the pinion gear mounting rod is perpendicular to the length direction of the cross beam, and a limiting plate is arranged on the pinion gear mounting rod; The two ends of the pinion gear mounting rod are respectively connected with the two second square tubes located on the same side, the first reinforcing rib has two and is symmetrically arranged at the bottom of the pinion gear mounting rod, one end of the two first reinforcing ribs is connected with the outer wall of the pinion gear mounting rod, the length direction of the first reinforcing rib is perpendicular to the length direction of the pinion gear mounting rod, the other end of the two first reinforcing ribs is connected through the second reinforcing rib, the third reinforcing rib is provided with two, the two ends of the second reinforcing rib are respectively connected with one end of the two third reinforcing ribs, and the other end of the two third reinforcing ribs is respectively connected with the two ends of the pinion gear mounting rod.

[0014] Further, the bottom end of the limiting rod is connected with a push rod, the lower end of the push rod connected with the two limiting rods on the same cross beam is inclined to the direction of the lifting frame on the same side of the cross beam, and the inclination angle of the push rod satisfies: when the limiting rod is pushed to the position by the limiting execution unit, the length direction of the push rod is parallel to the length direction of the stand column. The limiting execution unit, the lifting execution unit and the gear inserting execution unit are air cylinders or servo electric cylinders.

[0015] Compared with the prior art, the beneficial effects of the present application are: (1) When the one-key switching tray bin provided by the present application works, the gear inserting execution unit of the gear inserting assembly drives the gear inserting piece to move along the length direction of the lifting frame, so that the gear inserted on the gear inserting piece is inserted into the jack of the tray. Compared with the rotary insertion mode, the effective stroke is longer, and the active end stroke of the gear inserting execution unit can be adjusted by the external control unit, so as to adjust the effective stroke of the gear inserted, so as to adapt to trays of different sizes. The lifting assembly can drive the gear inserting assembly to move in the vertical direction, and the active end stroke of the lifting execution unit can also be adjusted by the external control unit. When the tray is placed for the first time by the forklift, the lifting execution unit can drive the spline to move to the highest position without affecting the placement of the tray. After the forklift places the tray on the spline, the detection sensor detects whether there is a tray on the spline. If a new tray is placed, the four limiting execution units of the limiting assembly drive the respective connecting limiting rods to act. The travel of the active end of the limiting execution unit can be adjusted by the external control unit. According to the specifications of the tray, the travel is adjusted adaptively to make the limiting rods push the four corners of the tray, adjust the position of the tray, and ensure the relative position of the tray and the spline. The lifting execution unit drives the spline and the tray to move downward until the tray is stably placed on the tray conveyor. The lifting execution unit drives the spline to continue to move downward. When it is below the upper plane of the tray conveyor, the spline is opened under the driving of the spline execution unit. The lifting execution unit drives the spline to move between the second tray from bottom to top. Then the spline is inserted into the insertion hole of the second tray under the driving of the spline execution unit. The lifting execution unit drives the spline to move upward to separate the two trays. At this time, the tray conveyor transports the tray on it away. Then the lifting execution unit drives the spline to descend to place the corresponding tray on the tray conveyor. The lifting execution unit drives the spline to continue to descend for a distance. When it is in the middle of the insertion hole, the spline is opened under the driving of the spline execution unit. The lifting execution unit drives the spline to move between the second tray from bottom to top. Thus, all trays can be transported away one by one. The travel of the lifting execution unit, the limiting execution unit and the spline execution unit can be adjusted by the external control unit to adapt to trays of various specifications. The spline is opened and closed by sliding to avoid the safety risk that the tray will directly fall due to the rotation of the spline. The guide assembly is arranged between the lifting frame and the limiting mounting frame to ensure that the lifting frame moves along the vertical direction with the active end of the lifting execution unit and ensures the movement accuracy.

[0016] (2) The guide assembly of the one-key switching tray bin provided by the application comprises a guide rod, a pulley and a guide groove. The cooperation of the pulley and the guide groove ensures that the lifting frame does not swing when it is driven to move by the active end of the lifting execution unit, ensuring the movement accuracy and the relative position of the spline and the tray insertion hole. The guide assembly further comprises a blocking rod arranged at the top of the lifting frame and two guide wheels rotatably arranged on the inner side surface of the blocking rod, which further limits the movement direction of the lifting frame to ensure that it can only move along the vertical direction.

[0017] (3) The one-key switching tray bin provided by the application is provided with a notch at the outer end of the limiting clamp, and the limiting rod is located in the notch of the limiting clamp. Thus, the limiting rod does not swing when it rotates due to the limitation of the notch.

[0018] (4) The one-key switching tray bin provided by the application is provided with a limiting plate on the pin gear mounting rod, when the pin gear is inserted into the jack of the tray each time, the limiting plate will push the tray and the tray above the tray to be in order, and the first reinforcing rib, the second reinforcing rib and the third reinforcing rib strengthen the structural strength of the whole pin gear.

[0019] (5) The one-key switching tray bin provided by the application is provided with a limiting square tube, when the forklift places the tray, the limiting square tube can limit the tray, preventing the tray from being placed beyond the stroke of the pin gear execution unit.

[0020] (6) The one-key switching tray bin provided by the application is connected with a push rod at the bottom end of the limiting rod, the push rods connected with the bottom ends of the two limiting rods on the same cross beam are inclined to the direction of the lifting frame on the same side of the cross beam, when the limiting rod is pushed to the position by the limiting execution unit, the length direction of the push rod is parallel to the length direction of the stand column, at this time, the inclined push rod will be in a vertical state, which can contact more trays and better push the trays to be in order.

[0021] (7) The one-key switching tray bin provided by the application, the tail end of the lifting execution unit is hinged to the inner side surface of the stand column, the movable end is hinged to the lifting frame, the tail end of the pin gear execution unit is hinged to the lifting frame, and the movable end is hinged to the sliding frame, so that when the movable ends of the lifting execution unit and the pin gear execution unit move, the hinge points can be adaptively adjusted, and running jamming will not be caused. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the existing tray bin; Figure 2 It is a front view of Figure 1 ; Figure 3 It is a top view of Figure 1 ; Figure 4 It is a perspective view of the embodiment of the one-key switching tray bin of the application Figure 1 ; Figure 5 It is a perspective view of the embodiment of the application Figure 2 ; Figure 6 It is a front view of the embodiment of the application; Figure 7 It is a left view of Figure 6 ; Figure 8 It is a connection diagram of the pin gear execution unit and the sliding frame in the embodiment of the application; Figure 9 It is a cooperation diagram of the guide groove and the pulley in the embodiment of the application; Figure 10 Figure 1 is a schematic view of the installation of the guide wheel in the embodiment of the present application.

[0023] The reference signs are explained as follows: 01-first lifting cylinder, 02-first gear shaping cylinder, 03-rotation shaft, 04-first gear shaping, 05-conveyor, 06-lifting tray rack; 1-frame, 11-stand column, 12-cross beam, 13-first inclined strut, 14-second inclined strut, 15-first connecting rod, 16-second connecting rod; 2-tray conveyor; 3-limiting assembly, 31-limiting execution unit, 32-limiting rod, 321-push rod; 33-limiting mounting rack, 34-mounting lug, 35-limiting clamping pipe, 36-mounting shaft, 37-guiding groove, 38-limiting shaft, 39-limiting square pipe; 4-lifting assembly, 41-lifting execution unit, 42-lifting rack, 43-guide rod, 44-pulley, 45-stop rod, 46-guide wheel; 5-gear shaping assembly, 51-gear shaping execution unit, 52-gear shaping piece, 521-gear shaping mounting rod, 522-first reinforcing rib, 523-second reinforcing rib, 524-third reinforcing rib; 53-sliding rack, 531-horizontal square pipe, 532-vertical square pipe, 533-second horizontal square pipe; 54-gear shaping, 55-limiting plate. DETAILED DESCRIPTION

[0024] The present application is further described below in conjunction with the drawings and specific embodiments.

[0025] Reference Figures 4-10 The one-key switching tray bin of the present application comprises a frame 1, a tray conveyor 2, a limiting assembly 3, a lifting assembly 4 and a gear shaping assembly 5.

[0026] The frame 1 comprises four stand columns 11 distributed in a rectangular shape, the tray conveyor 2 is arranged at the bottom of the frame 1, and the cross beam 12 is arranged between the top portions of the two stand columns 11 corresponding to the two ends of the tray conveyor 2 in the conveying direction, and the tray conveyor 2 is used to convey the trays to the next work station in sequence.

[0027] The lifting assembly 4 comprises four lifting execution units 41 and two lifting racks 42. In this embodiment, the lifting execution unit 41 can be a cylinder or a servo cylinder. The cylinder has low cost and can be used in scenarios with low precision requirements, while the servo cylinder is suitable for scenarios with high precision requirements. The four lifting execution units 41 are arranged at the inner side positions of the top portions of the four stand columns 11 and are hingedly connected to the inner side surfaces of the stand columns 11 at the tail ends, and the two lifting racks 42 are respectively hingedly connected to the movable ends of the two lifting execution units 41 at the same end side. In this way, the movable end of the lifting execution unit 41 can drive the lifting rack 42 to lift in the vertical direction.

[0028] The limiting assembly 3 is used to push the stacked trays in order, so that the teeth 54 of the tooth assembly 5 can be aligned with the sockets on the trays, which comprises four limiting execution units 31 and four limiting rods 32. In this embodiment, the limiting execution unit 31 can also be a pneumatic cylinder or a servo cylinder. Two limiting rods 32 are arranged on the inner side of each cross beam 12, and the four limiting rods 32 are distributed in a rectangular shape and the top end of the limiting rod 32 is hinged to the inner side of the cross beam 12. A limiting mounting bracket 33 is arranged between the two upright columns 11 on the same end side, the movable end of the four limiting execution units 31 is hinged to the four limiting rods 32 respectively, the tail end of the two limiting execution units 31 on the same end side is hinged to the same limiting mounting bracket 33, and all the limiting rods 32 are located between the two lifting frames 42. The limiting rod 32 will be rotated around the hinge point of the limiting rod 32 and the cross beam 12 under the driving of the limiting execution unit 31, and in the process of rotation, the tray contacted will be pushed in order. In order to push more trays in order at one time, a push rod 321 is connected to the bottom end of the limiting rod 32. The lower end of the push rod 321 connected to the two limiting rods 32 on the same cross beam 12 is inclined towards the lifting frame 42 on the same side of the cross beam 12, and the inclination angle of the push rod 321 satisfies that when the limiting rod 32 is pushed to the position by the limiting execution unit 31, the length direction of the push rod 321 is parallel to the length direction of the upright column 11. In this way, after the push rod 321 is in the vertical state, it can contact more trays and better push the trays in order.

[0029] The inner side of each limiting mounting bracket 33 is divided into two groups of mounting ears 34, each group of mounting ears 34 comprises two sub-mounting ears, and a limiting clamp pipe 35 is connected between the two sub-mounting ears. The limiting execution unit 31 is located on the top surface of the limiting clamp pipe 35, and a notch is arranged at the outer end of the limiting clamp pipe 35, and the limiting rod 32 is located in the notch of the limiting clamp pipe 35. The limiting rod 32 will not swing due to the limitation of the notch.

[0030] The pinching assembly 5 is used for pinching the tray when taking the tray, and comprises a pinching execution unit 51 and a pinching piece 52. The pinching execution unit 51 can still adopt a pneumatic cylinder or a servo electric cylinder, which can be flexibly selected according to the requirements of the use scene. The bottom of each lifting frame 42 is provided with two pinching execution units 51, the tail ends of the two pinching execution units 51 are hinged to the lifting frame 42, the movable ends of the two pinching execution units 51 are hinged to a sliding frame 53, and the movable ends of the two pinching execution units 51 are arranged opposite to each other; the sliding frame 53 is slidingly connected to the lifting frame 42, the two sliding frames 53 located on the same side of the two lifting frames 42 are connected through the pinching piece 52, a plurality of pins 54 are arranged on the pinching piece 52, a detection sensor for detecting the tray is arranged above one of the pins 54, the detection sensor, the lifting execution unit 41, the pinching execution unit 51 and the limiting execution unit 31 are electrically connected to an external control unit, the detection sensor is used for detecting whether there is a tray above the pinching piece 52, if there is a tray, the external control unit controls the lifting execution unit 41, the pinching execution unit 51 and the limiting execution unit 31 to act, and the operation of taking the tray continues, if there is no tray, the operation needs to be stopped, the whole tray bin enters a standby position, and waits for a worker to put a new tray into the tray bin by using a forklift, and then the operation of taking the tray is performed.

[0031] The sliding frame 53 comprises a first horizontal pipe 531, a vertical pipe 532 and a second horizontal pipe 533, the first horizontal pipe 531 is slidingly arranged in the lifting frame 42, the two ends of the vertical pipe 532 are connected to the end portions of the first horizontal pipe 531 and the second horizontal pipe 533 respectively, the second horizontal pipes 533 located on the same side are connected through the pinching piece 52, and the movable end of each pinching execution unit 51 is hinged to the vertical pipe 532 of the corresponding sliding frame 54. In this way, when the movable end of the pinching execution unit 51 acts, the sliding frame 53 slides in the lifting frame 42, the overall structure is simple, and the movement direction of the pinching piece 52 is also limited.

[0032] The pinching piece 52 comprises a pinching mounting rod 521, a first reinforcing rib 522, a second reinforcing rib 523 and a third reinforcing rib 524, the pins 54 are arranged on the pinching mounting rod 521, and the length direction of the pinching mounting rod 521 is perpendicular to the length direction of the cross beam 12. A limiting plate 55 is arranged on the pinching mounting rod 521, the limiting plate 55 is used for limiting the tray when the pinching piece 52 moves towards the tray, so as to ensure that the trays are stacked neatly.

[0033] Two ends of the gear shaping installation rod 521 are connected with two second water square pipes 533 located at the same side respectively, the first reinforcing rib 522 is two and symmetrically arranged at the bottom of the gear shaping installation rod 521, one end of the two first reinforcing ribs 522 is connected with the outer wall of the gear shaping installation rod 521, the length direction of the first reinforcing rib 522 is perpendicular to the length direction of the gear shaping installation rod 521, the other end of the two first reinforcing ribs 522 is connected through the second reinforcing rib 523, the third reinforcing rib 524 is two, the two ends of the second reinforcing rib 523 are connected with one end of the two third reinforcing ribs 524 respectively, the other end of the two third reinforcing ribs 524 is connected with the two ends of the gear shaping installation rod 521 respectively.

[0034] A guide assembly is arranged between the lifting frame 42 and the limiting mounting frame 33, which is used for limiting the lifting frame 42 to move along the vertical direction following the moving end of the lifting execution unit 41. The guide assembly comprises a guide rod 43, a pulley 44 and a guide groove 37, the guide rod 43 is arranged at the middle position of the top of the lifting frame 42, the pulley 44 is rotatably connected on the guide rod 43, the mounting shaft 36 is arranged between the two groups of mounting ears 34 located on the same limiting mounting frame 33, the guide groove 37 is welded on the mounting shaft 36, and the pulley 44 is located in the guide groove 37. Thus, when the lifting frame 42 moves up and down, the guide groove 37 cooperates with the pulley 44 to prevent it from swinging.

[0035] In order to further limit the movement track of the lifting frame 42, the guide assembly further comprises a stop rod 45, and the stand column 11 is made of a rectangular tube, two stop rods 45 are arranged at the two ends of the top of each lifting frame 42, the length direction of the stop rod 45 is perpendicular to the length direction of the stand column 11, as shown in Figure 10 two guide wheels 46 are rotatably arranged on the inner side of each stop rod 45, the two guide wheels 46 abut against the two outer walls of the corresponding stand column 11 respectively, and the movement track of the lifting frame 42 is further limited by the stop rod 45 and the guide wheel 46, so that the lifting frame 42 can only move along the vertical direction, and the overall movement precision is improved.

[0036] In order to improve the structural strength of the whole rack 1, the rack 1 further comprises a first inclined support 13 and a second inclined support 14, the first inclined support 13 is four, one end of the four first inclined supports 13 is connected with the outer side of the four stand columns 11 respectively, the limiting mounting frame 33 is connected between the two first inclined supports 13 at the same end side, and the first connecting rod 15 is connected between the first inclined support 13 and the stand column 11 close to the bottom.

[0037] The second inclined support 14 is two, one end of the two second inclined supports 14 is connected with one end of the two cross beams 12 respectively, the bottom of the two stand columns 11 close to the second inclined support 14 is connected with the second inclined support 14 through the second connecting rod 16.

[0038] In order to prevent the forklift from exceeding the stroke of the pin insertion execution unit 51 when placing the pallet into the pallet compartment, a plurality of limiting square tubes 39 are also provided. In order to fix the limiting square tubes 39, the ends of the two cross beams 12 that are not connected to the second diagonal braces 14 are connected by limiting shafts 38, and a plurality of limiting square tubes 39 are arranged on the limiting shafts 38 in the axial direction. One end of the limiting square tube 39 is connected to the outer wall of the limiting shaft 38 by welding, and the length direction of the limiting square tube 39 is parallel to the length direction of the stand column 11.

[0039] In use, the external control unit can control the active end stroke of the pin insertion execution unit 51, and further adjust the effective stroke of the pin 54 to adapt to pallets of different sizes. When the pallet is placed for the first time by the forklift, the lifting execution unit 41 drives the pin 54 to move to the highest position, which does not affect the placement of the pallet. After the forklift places the pallet on the pin 54, the detection sensor arranged above the pin 54 detects that there is no pallet in front of the pin 54. Now that a pallet is detected, the external control unit determines that this pallet is a newly placed pallet. The four limiting execution units 31 of the limiting assembly 3 drive the respective connecting limiting rods 32 to act. The external control unit can adjust the stroke of the active end of the limiting execution unit 31, and can adjust the stroke adaptively according to the size of the pallet, so that the four push rods 321 connected to the four limiting rods 32 push the four corners of the pallet, push the pallet to be in order, ensure the relative position of the pallet and the pin 54, and ensure that the pin 54 can be accurately inserted into the insertion hole of the pallet; then, the lifting execution unit 41 drives the pin 54 to move downward, and places the pallet stably on the pallet conveyor 2 until it is below the upper plane of the pallet conveyor 2. Under the drive of the pin insertion execution unit 51, the pin 54 is opened. Then, the lifting execution unit 41 drives the pin 54 to move between the first and second pallets from bottom to top. Then, under the drive of the pin insertion execution unit 51, the pin 54 is inserted into the insertion hole of the second pallet. The lifting execution unit 41 drives the pin 54 to move upward, so that the two pallets are separated. At this time, the pallet conveyor 2 conveys the pallet located thereon away. Then, the lifting execution unit 41 drives the pin 54 to descend, and places the corresponding pallet on the pallet conveyor 2. The lifting execution unit 41 drives the pin 54 to continue to descend by a distance. When the pin 54 is located in the middle of the corresponding insertion hole, the pin 54 is separated from the pallet. Under the drive of the pin insertion execution unit 51, the pin 54 is opened to prevent the pin 54 from shaking the pallet when it is opened. Then, the lifting execution unit 41 drives the pin 54 to move between the second and third pallets from bottom to top. In this way, all the pallets can be conveyed away one by one.

[0040] The above embodiments are merely used for describing the specific embodiments of the present application, and are not used to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made by those skilled in the art to the technical solutions of the present application shall fall into the protection scope of the present application defined by the claims.

Claims

1. A one-button pallet switching compartment, comprising a frame (1), a pallet conveyor (2), and a lifting assembly (4); characterized in that: It also includes a limiting component (3) and a toothed component (5); The pallet conveyor (2) is located at the bottom of the frame (1). The frame (1) includes four uprights (11) arranged in a rectangular shape. A crossbeam (12) is provided between the tops of the two uprights (11) on both sides of the conveying direction of the pallet conveyor (2). The lifting assembly (4) includes four lifting execution units (41) and two lifting frames (42). The four lifting execution units (41) are located on the inner side of the top of the four columns (11) and their tail ends are hinged to the inner side of the columns (11). The two lifting frames (42) are respectively hinged to the movable ends of the two lifting execution units (41) located on the same side. The limiting component (3) includes four limiting execution units (31) and four limiting rods (32). Two limiting rods (32) are provided on the inner side of each crossbeam (12). The four limiting rods (32) are distributed in a rectangular shape and the top of the limiting rods (32) is hinged to the inner side of the crossbeam (12). A limiting mounting frame (33) is provided between two columns (11) located on the same end side. The movable ends of the four limiting execution units (31) are respectively hinged to the four limiting rods (32). The tail ends of the two limiting execution units (31) located on the same end side are hinged to the same limiting mounting frame (33). All the limiting rods (32) are located between two lifting frames (42). The tooth assembly (5) includes a tooth actuation unit (51) and a tooth component (52). Two tooth actuation units (51) are provided at the bottom of each lifting frame (42). The tail ends of the two are hinged to the lifting frame (42), and the movable ends are hinged to a sliding frame (53). The movable ends of the two are arranged opposite to each other. The sliding frame (53) is slidably connected to the lifting frame (42). The two sliding frames (53) located on the same side of the two lifting frames (42) are connected by the tooth component (52). Multiple teeth (54) are provided on the tooth component (52). A detection sensor for detecting the tray is provided above one of the teeth (54). The detection sensor, the lifting actuation unit (41), the tooth actuation unit (51), and the limit actuation unit (31) are all used to be electrically connected to an external control unit. A guide component is provided between the lifting frame (42) and the limiting mounting frame (33) to restrict the lifting frame (42) from moving vertically along the moving end of the lifting execution unit (41).

2. The one-click pallet switching compartment according to claim 1, characterized in that: Each limiting mounting bracket (33) has two sets of mounting ears (34) on its inner side. Each set of mounting ears (34) includes two sub-mounting ears. A limiting clamp tube (35) is connected between the two sub-mounting ears. The limiting execution unit (31) is located on the top surface of the limiting clamp tube (35). The outer end of the limiting clamp tube (35) is provided with a notch. The limiting rod (32) is located in the notch of the limiting clamp tube (35).

3. The one-click pallet switching compartment according to claim 2, characterized in that: The guide assembly includes a guide rod (43), a pulley (44), and a guide groove (37). The guide rod (43) is located at the top center of the lifting frame (42), and the pulley (44) is rotatably connected to the guide rod (43); A mounting shaft (36) is provided between two sets of mounting ears (34) located on the same limiting mounting bracket (33), the guide groove (37) is provided on the mounting shaft (36), and the pulley (44) is located in the guide groove (37).

4. The one-click pallet switching compartment according to claim 3, characterized in that: The guide assembly also includes a stop (45); The column (11) is a rectangular tube, and each of the lifting frames (42) has two baffles (45) at both ends of its top. The length direction of the baffles (45) is perpendicular to the length direction of the column (11). Two guide wheels (46) are rotatably mounted on the inner side of each stop (45), and the two guide wheels (46) abut against the two outer walls opposite to the corresponding column (11).

5. The one-click pallet switching compartment as described in claim 4, characterized in that: The frame (1) also includes a first diagonal brace (13) and a second diagonal brace (14); There are four first diagonal braces (13), and one end of each of the four is connected to the outer side of the four columns (11). The limiting mounting bracket (33) is connected between two first diagonal braces (13) on the same end side, and the four columns (11) are connected to the first diagonal braces (13) near the bottom through the first connecting rod (15). There are two second diagonal braces (14). One end of each second diagonal brace (14) is connected to one end of each of the two crossbeams (12). The bottom of the two columns (11) near the second diagonal brace (14) is connected to the second diagonal brace (14) through the second connecting rod (16).

6. The one-click pallet switching compartment as described in claim 5, characterized in that: The ends of the two crossbeams (12) that are not connected to the second diagonal brace (14) are connected by a limiting shaft (38). Multiple limiting square tubes (39) are provided along the axial direction on the limiting shaft (38). One end of the limiting square tube (39) is connected to the outer wall of the limiting shaft (38), and the length direction of the limiting square tube (39) is parallel to the length direction of the column (11).

7. The one-click pallet switching compartment as described in claim 6, characterized in that: The sliding frame (53) includes a first horizontal square tube (531), a vertical square tube (532), and a second horizontal square tube (533). The first horizontal square tube (531) is slidably disposed in the lifting frame (42). The two ends of the vertical square tube (532) are respectively connected to the ends of the first horizontal square tube (531) and the second horizontal square tube (533). The second horizontal square tube (533) located on the same side is connected by a toothed component (52). The movable end of each toothed execution unit (51) is hinged to the vertical square tube (532) of the corresponding sliding frame (54).

8. The one-click pallet switching compartment as described in claim 7, characterized in that: The toothed component (52) includes a toothed mounting rod (521), a first reinforcing rib (522), a second reinforcing rib (523), and a third reinforcing rib (524); the tooth (54) is disposed on the toothed mounting rod (521), and the length direction of the toothed mounting rod (521) is perpendicular to the length direction of the crossbeam (12); a limit plate (55) is provided on the toothed mounting rod (521). The two ends of the tooth mounting rod (521) are respectively connected to two second horizontal square tubes (533) located on the same side. There are two first reinforcing ribs (522) symmetrically arranged at the bottom of the tooth mounting rod (521). One end of the two first reinforcing ribs (522) is connected to the outer wall of the tooth mounting rod (521). The length direction of the first reinforcing ribs (522) is perpendicular to the length direction of the tooth mounting rod (521). The other ends of the two first reinforcing ribs (522) are connected through the second reinforcing ribs (523). There are two third reinforcing ribs (524). The two ends of the second reinforcing ribs (523) are respectively connected to one end of the two third reinforcing ribs (524). The other ends of the two third reinforcing ribs (524) are respectively connected to the two ends of the tooth mounting rod (521).

9. The one-click switching pallet compartment as described in claim 8, characterized in that: The bottom end of the limiting rod (32) is connected to a push rod (321). The two limiting rods (32) located on the same crossbeam (12) have their bottom ends connected to the push rod (321), which is inclined towards the lifting frame (42) located on the same side as the crossbeam (12). The inclination angle of the push rod (321) satisfies the following: when the limiting rod (32) is pushed into place by the limiting execution unit (31), the length direction of the push rod (321) is parallel to the length direction of the column (11). The limit actuator (31), lifting actuator (41) and gear-shaping actuator (51) are cylinders or servo electric cylinders.

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