A device and method for continuously and automatically supplying baskets

Abstract

The present invention provides a device and method for continuous automatic basket supply, relating to the technical field of passenger security inspection systems. The device mainly comprises a continuous basket supply frame assembly, an empty basket return module assembly, an empty basket lifting assembly, and an upper conveying assembly. The continuous basket supply frame assembly includes two rectangular frames with vertical support rods connected at the four corners of the two rectangular frames. A guide plate for limiting and correcting the empty basket is provided between each two vertical support rods. The empty basket return module assembly includes a bottom U-shaped support plate and several rollers. The empty basket lifting assembly includes two lifting structures, each including a bottom rotating rod and two top rotating rods, and a first synchronous belt. Several support plates for supporting the empty baskets are arranged outside the first synchronous belt and at intervals along the length of the first synchronous belt. When the bottom rotating rod rotates, the first synchronous belt moves, driving the support plates to support the empty baskets upward. This solves the problem that the basket supply efficiency cannot meet the needs of passengers.

Description

Technical Field

[0001] The present invention relates to the technical field of passenger security inspection systems, and in particular to a device and method for continuously and automatically supplying baskets. Background Art

[0002] Airport security is a crucial component of airport safety. Passengers are required to undergo a luggage security check before entering the airport. Typically, passengers or security personnel remove an empty tray from the bottom of the sorting table in front of the security check machine and place it on the table. They then place their carry-on luggage and other belongings on the tray. The tray then passes through the security check system, where security personnel use the security check machine (X-ray inspection) to determine if the luggage is safe. This process requires passengers or security personnel to bend down and retrieve a tray from the lower return basket system, increasing their workload. Patent No. CN114408502B discloses an automatic tray supply device, a tray sorting table, and a security check system equipped with it. This not only reduces the need for passengers to search for trays, making service more user-friendly, but also eliminates the need for passengers to bend down to retrieve trays. However, this solution requires passengers to wait for the previous luggage basket to enter the conveyor channel before the next luggage basket can be supplied. This process is time-consuming, and the supply efficiency cannot meet passenger needs. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a device and method for continuously and automatically supplying baskets, which solves the problem that the efficiency of supplying baskets cannot meet the needs of passengers.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A continuous automatic basket supply device, comprising: a continuous basket supply frame assembly, an empty basket return module assembly, an empty basket lifting assembly and an upper conveying assembly;

[0006] The continuous basket supply frame assembly includes two rectangular frames arranged in the vertical direction, vertical support rods are connected between the four corners of the two rectangular frames, and a guide plate for limiting and correcting the empty basket is provided between each two vertical support rods. A sealing plate is provided on the top of the top rectangular frame;

[0007] The empty basket return module assembly includes a bottom U-shaped support plate and a plurality of rollers for receiving the empty baskets, wherein the bottom U-shaped support plate is located between the four vertical support rods, and the plurality of rollers are arranged in sequence along the horizontal direction within the bottom U-shaped support plate, and the plurality of rollers are parallel to each other;

[0008] The empty basket lifting assembly includes two groups of symmetrically arranged lifting structures, each group of lifting structures includes a bottom rotating rod and two top rotating rods, the bottom rotating rod is rotatably arranged on the bottom rectangular frame along its own axis, and the top rotating rod is rotatably arranged on the top rectangular frame, the bottom rotating rod is parallel to the top rotating rod and is perpendicular to the projection of the roller in the horizontal direction, the two ends of the bottom rotating rod are coaxially fixed with a first synchronous wheel on the top rotating rod, and the first synchronous wheel on the top rotating rod is connected to the first synchronous wheel corresponding to the end of the bottom rotating rod by a first synchronous belt, and a plurality of supporting plates for supporting the empty basket are arranged at intervals on the outside of the first synchronous belt and along the length direction of the first synchronous belt, the side of the supporting plate in contact with the empty basket is a convex arc surface in the middle, and when the bottom rotating rod rotates, the first synchronous belt moves to drive the supporting plate to support the empty basket to move upward;

[0009] The upper conveying assembly includes an inverted U-shaped plate, a fixed rod and a sliding plate. The inverted U-shaped plate is connected to the rectangular frame at the top. The two ends of the fixed rod are respectively fixed to the inner walls of the two ends of the inverted U-shaped plate. Both ends of the fixed rod are slidably sleeved with sliding plates. A rocker is provided in the middle of the inverted U-shaped plate to control the two sliding plates to slide toward each other. A conveying mechanism for horizontally conveying empty baskets is fixed to the bottom of the sliding plate.

[0010] Preferably, the guide plate is located between the empty basket return module assembly and the upper conveying assembly, and the guide plate includes an upper transverse plate, a lower transverse plate and an inclined plate. The width of the upper transverse plate is greater than the width of the lower transverse plate, and the outer side of the upper transverse plate is aligned with the outer side of the lower transverse plate. The inclined plate is connected between the inner side of the upper transverse plate and the inner side of the lower transverse plate. A side plate is fixedly connected between the end of the upper transverse plate and the end of the lower transverse plate, and the side plate is connected to the vertical support rod.

[0011] Preferably, L-shaped connecting plates are symmetrically connected to both ends of the bottom U-shaped support plate, and the L-shaped connecting plates are fixedly connected to the vertical support rods. A notch is provided on the L-shaped connecting plates to facilitate the passage of the first synchronous belt.

[0012] Preferably, a cross bar is provided in the rectangular frame at the bottom, and a first motor is fixed on the cross bar, the output shaft of the first motor is coaxially connected to the first transmission shaft, the first transmission shaft is coaxially connected to the first gear, and a second transmission shaft is also provided, the second transmission shaft is coaxially connected to the second gear meshing with the first gear, a second synchronous wheel is coaxially provided on the bottom rotating rod, and second synchronous wheels are respectively provided on the first transmission shaft and the second transmission shaft corresponding to the two bottom rotating rods, and a second synchronous belt is connected between the second synchronous wheels on the first transmission shaft and the second transmission shaft and the corresponding second synchronous wheels on the bottom rotating rod.

[0013] Preferably, two fixing rods are provided, and a sliding plate is slidably sleeved on both ends of each fixing rod, and a conveying mechanism is commonly fixed on the bottom of the sliding plate at the same end.

[0014] Preferably, a second motor is provided on the inverted U-shaped plate, the output shaft of the second motor passes through the inverted U-shaped plate and is fixedly connected to the middle part of the rocker, a push-pull plate is connected between the two sliding plates, and the two ends of the rocker are respectively hinged with pull rods between the two push-pull plates.

[0015] Preferably, the conveying mechanism includes a third motor and two fixed plates, the inner side of the fixed plate is a straight edge, a number of fixed columns are fixedly arranged between the two fixed plates and along the edges of the fixed plates, a first pulley is coaxially rotated on the fixed column, the third motor is fixed on a fixed plate, the output shaft of the third motor passes through the fixed plate and is coaxially connected to the rotating column, the rotating column is rotatably connected to the fixed plate, a second pulley is coaxially fixedly connected to the rotating column, and a belt that can contact the empty basket is transmission-connected to the first pulley and the second pulley.

[0016] Preferably, a plurality of rotating bases are fixedly connected to the rectangular frame, and the bottom rotating rod and the top rotating rod are rotatably connected to the rotating bases respectively.

[0017] Preferably, the two guide plates are located between two first synchronous belts on the same side.

[0018] The present invention has the following beneficial effects:

[0019] The empty basket return module assembly and empty basket lifting assembly are set up to achieve continuous lifting of empty baskets, greatly improving the efficiency of basket supply and shortening the waiting time of passengers; and the upper conveying assembly is used to clamp and convey the empty baskets to both sides.

[0020] A method for continuously and automatically supplying baskets, comprising any one of the above-mentioned devices for continuously and automatically supplying baskets, comprising the following steps:

[0021] S1, the empty basket enters the empty basket return module assembly, so that a single empty basket is placed on the drum and the next step is performed;

[0022] S2: The empty basket lifting assembly lifts the empty basket on the drum upwards. During the lifting process, the guide plate guides and limits the basket, and the next step is executed.

[0023] S3: When the distance between the bottom of the lowest empty basket and the drum is greater than the height of the empty basket, step S1 is repeated. When the uppermost empty basket reaches the upper conveying position, the empty basket lifting assembly stops working and the next step is executed.

[0024] S4, the upper conveying assembly drives the conveying mechanism to convey the empty basket horizontally to the next work surface. After the conveying is completed, repeat step S2.

[0025] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the present invention used in conjunction with other work platforms;

[0027] Figure 2 It is a partial structural schematic diagram of the present invention;

[0028] Figure 3 It is a partial structural schematic diagram of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of the present invention;

[0030] Figure 5 It is a schematic diagram of the guide plate structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the supporting plate structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the connection structure between the upper conveying assembly and the rectangular frame of the present invention;

[0033] Figure 8 It is a schematic structural diagram of the upper conveying assembly of the present invention;

[0034] Figure 9 It is a partial structural diagram of the upper conveying assembly of the present invention;

[0035] Figure 10 It is a schematic diagram of the structure of the conveying mechanism of the present invention;

[0036] Figure 11 This is a schematic diagram of the connection between the first motor and the bottom rotating rod of the present invention.

[0037] In the above drawings: 1. continuous basket supply frame assembly; 11. rectangular frame; 12. vertical support rod; 13. sealing plate; 2. empty basket return module assembly; 21. bottom U-shaped support plate; 211. L-shaped connecting plate; 22. roller; 3. empty basket lifting assembly; 31. bottom rotating rod; 32. top rotating rod; 33. first synchronous wheel; 34. first synchronous belt; 35. supporting plate; 36. first gear; 37. second gear; 38. second synchronous belt; 39. first motor; 4. upper conveying assembly; 41. inverted U-shaped plate; 42. fixed rod; 421. push-pull plate; 43. sliding plate; 5. rocker; 51. pull rod; 6. guide plate; 61. upper horizontal plate; 62. lower horizontal plate; 63. inclined plate; 64. side plate; 71. third motor; 72. fixed plate; 73. first pulley; 74. second pulley; 75. belt. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the technical solutions in the present invention are further described below with reference to the accompanying drawings and embodiments.

[0039] See also Figures 1 to 11As shown, a device for continuous automatic basket feeding includes: a continuous basket feeding frame assembly 1, an empty basket return module assembly 2, an empty basket lifting assembly 3 and an upper conveying assembly 4; the continuous basket feeding frame assembly 1 includes two rectangular frames 11 arranged in the vertical direction, and vertical support rods 12 are connected between the four corners of the two rectangular frames 11. A guide plate 6 for limiting and correcting the empty basket is provided between each two vertical support rods 12, and a sealing plate 13 is provided on the top of the top rectangular frame 11; the empty basket return module assembly 2 includes a bottom U-shaped support plate 21 and several The roller 22 of the empty basket, the bottom U-shaped support plate 21 is located between the four vertical support rods 12, and the plurality of rollers 22 are arranged in sequence in the horizontal direction in the bottom U-shaped support plate 21, and the plurality of rollers 22 are parallel to each other; the empty basket lifting assembly 3 includes two groups of symmetrically arranged lifting structures, each group of lifting structures includes a bottom rotating rod 31 and two top rotating rods 32, the bottom rotating rod 31 is rotated along its own axis and is arranged on the bottom rectangular frame 11, the top rotating rod 32 is rotated and arranged on the top rectangular frame 11, the bottom The rotating rod 31 is parallel to the top rotating rod 32 and is perpendicular to the horizontal projection of the drum 22. First synchronous wheels 33 are coaxially fixed on both ends of the bottom rotating rod 31 and the top rotating rod 32. A first synchronous belt 34 is connected between the first synchronous wheel 33 on the top rotating rod 32 and the first synchronous wheel 33 corresponding to the end of the bottom rotating rod 31. A plurality of supporting plates 35 for supporting the empty basket are arranged at intervals on the outside of the first synchronous belt 34 and along the length direction of the first synchronous belt 34. The side of the supporting plate 35 in contact with the empty basket is a raised arc surface in the middle. When the bottom rotating rod 31 rotates, the first synchronous belt 34 moves to drive the supporting plate 35 to support the empty basket to move upward; the upper conveying assembly 4 includes an inverted U-shaped plate 41, a fixed rod 42 and a sliding plate 43, the inverted U-shaped plate 41 is connected to the top rectangular frame 11, and the two ends of the fixed rod 42 are respectively fixed to the inner walls of the two ends of the inverted U-shaped plate 41, and the two ends of the fixed rod 42 are slidably sleeved with sliding plates 43. The middle part of the inverted U-shaped plate 41 is rotated with a rocker 5 for controlling the two sliding plates 43 to slide toward each other, and a conveying mechanism for horizontally conveying empty baskets is fixed to the bottom of the sliding plate 43.

[0040] The two rectangular frames 11 and the vertical support rods 12 provide support for the installation of the empty basket return module assembly 2, the empty basket lifting assembly 3 and the upper conveying assembly 4. The sealing plate 13 covers the top to protect the entire device, and support feet are provided at the bottom of the vertical support rods 12 to support the entire device; rollers 22 parallel to each other are provided to facilitate the empty basket to move smoothly under the rolling action of the rollers 22 and to be completely located in the bottom U-shaped support plate 21, so that the empty basket lifting assembly 3 can lift the empty basket; the line connecting the axes of the two top rotating rods 32 is a straight line, and two top rotating rods 32 are provided to provide space for the installation of the upper conveying assembly 4. After installation, the upper conveying assembly 4 is partially located between the two top rotating rods 32; specifically, a number of rotating bases are fixedly connected to the rectangular frame 11, and the bottom rotating rod 31 and the top rotating rod The movable rods 32 are respectively connected to the rotating base for corresponding rotation; when lifting, the supporting plates 35 on the two first synchronous belts 34 on each side jointly support one side of the empty basket, and the supporting plates 35 on both sides work together to lift the empty basket; when the position of the empty basket in the non-vertical direction is offset, the guide plates 6 on all sides can limit and correct the empty basket, and the side of the supporting plate 35 in contact with the empty basket is a raised arc surface in the middle, which reduces the contact area between the empty basket and the supporting plate 35, and then in the process of limiting and correcting, the friction between the empty basket and the supporting plate 35 is small, which is convenient for centering the empty basket; the two sliding plates 43 are controlled to slide by the rocker 5, so that when the empty basket is lifted, the two conveying mechanisms are separated and the conveying mechanisms are in a avoidance position, which is convenient for lifting the empty basket; when the empty basket needs to be conveyed, the rocker 5 controls the two conveying mechanisms to approach and convey the empty basket.

[0041] Furthermore, if Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the guide plate 6 is located between the empty basket return module assembly 2 and the upper conveying assembly 4, and the guide plate 6 includes an upper transverse plate 61, a lower transverse plate 62 and an inclined plate 63. The width of the upper transverse plate 61 is greater than the width of the lower transverse plate 62, and the outer side of the upper transverse plate 61 is aligned with the outer side of the lower transverse plate 62. The inclined plate 63 is connected between the inner side of the upper transverse plate 61 and the inner side of the lower transverse plate 62. A side plate 64 is fixedly connected between the end of the upper transverse plate 61 and the end of the lower transverse plate 62, and the side plate 64 is connected to the vertical support rod 12. It should be noted that the "outside" here refers to the side away from the empty basket when the empty basket is limited and corrected, and the "inside" refers to the side close to the empty basket; the distance between the two opposite inclined plates 63 gradually decreases from bottom to top, so as to correct the position of the empty basket in the process of lifting the empty basket; the guide plate 6 is connected to the vertical support rod 12 through the side plate 64, and the side plate 64 is provided with a bolt hole, and the side plate 64 is fixed to the vertical support rod 12 by bolts.

[0042] Furthermore, if Figure 2 As shown, the two guide plates 6 are located between the two first synchronous belts 34 on the same side to facilitate installation of the first synchronous belt 34 . At this time, the side of the side plates 64 that are away from each other are connected to a long rod, and the other end of the long rod passes through the first synchronous belt 34 and is fixedly connected to the vertical support rod 12 .

[0043] Furthermore, L-shaped connecting plates 211 are symmetrically connected to both ends of the bottom U-shaped support plate 21. The L-shaped connecting plates 211 are fixedly connected to the vertical support rods 12 and are provided with notches to facilitate the passage of the first synchronous belt 34. The L-shaped connecting plates 211 are located at both ends of the drum 22. While securing the bottom U-shaped support plate 21 to the vertical support rods 12, they do not affect the smooth movement of the empty basket from the previous station to the drum 22.

[0044] Furthermore, if Figure 2 、 Figure 3 and Figure 11 As shown, a cross bar is provided in the rectangular frame 11 at the bottom, and a first motor 39 is fixed on the cross bar. The output shaft of the first motor 39 is coaxially connected to the first transmission shaft, and the first gear 36 is coaxially connected to the first transmission shaft. A second transmission shaft is also provided, and the second transmission shaft is coaxially connected to a second gear 37 that meshes with the first gear 36. A second synchronous wheel is coaxially provided on the bottom rotating rod 31, and second synchronous wheels are respectively provided on the first transmission shaft and the second transmission shaft corresponding to the two bottom rotating rods 31. A second synchronous belt 38 is connected between the second synchronous wheels on the first transmission shaft and the second transmission shaft and the corresponding second synchronous wheels on the bottom rotating rod 31. The second transmission shaft is rotatably arranged on the cross bar. Specifically, a rotating seat can be set on the cross bar. The second transmission shaft is rotatably connected to the rotating seat. The first motor 39 is started, driving the first transmission shaft to rotate, so that the second synchronous wheel rotates, and drives the corresponding bottom rotating rod 31 to rotate. By engaging with the first gear 36, the second gear 37 rotates in the opposite direction, thereby driving the second transmission shaft to rotate. The second synchronous wheel rotates, driving the corresponding bottom rotating rod 31 to rotate, so that the two bottom rotating rods 31 rotate, and the first synchronous belt 34 works together to lift the empty basket.

[0045] Furthermore, if Figures 7 to 9 As shown, in order to improve stability, two fixing rods 42 are provided, and a sliding plate 43 is slidably sleeved on both ends of each fixing rod 42, and a conveying mechanism is fixed to the bottom of the sliding plate 43 at the same end.

[0046] Furthermore, if Figures 7 to 9As shown, a second motor is mounted on the inverted U-shaped plate 41. The output shaft of the second motor passes through the inverted U-shaped plate 41 and is fixedly connected to the middle portion of the rocker 5. A push-pull plate 421 is connected between the two sliding plates 43. Pull rods 51 are hingedly connected at each end of the rocker 5 to the two push-pull plates 421. When the second motor is activated, it drives the rocker 5 to rotate. This rotation changes the position of the two ends of the rocker 5, thereby pulling the pull rod 51, causing the push-pull plate 421 to move under the action of the pull rod 51, thereby causing the sliding plate 43 connected to the push-pull plate 421 to slide on the fixed rod 42.

[0047] Furthermore, if Figures 7 to 10 As shown, the conveying mechanism includes a third motor 71 and two fixed plates 72. The inner side of the fixed plate 72 is a straight edge. A number of fixed columns are fixedly arranged between the two fixed plates 72 and along the edges of the fixed plates 72. A first pulley 73 is coaxially arranged on the fixed column. The third motor 71 is fixed on one fixed plate 72. The output shaft of the third motor 71 passes through the fixed plate 72 and is coaxially connected to a rotating column. The rotating column is rotatably connected to the fixed plate 72. A second pulley 74 is coaxially fixedly connected to the rotating column. A belt 75 that can contact the empty basket is transmission-connected to the first pulley 73 and the second pulley 74. Combined with the Figure 4 As shown, the fixed plate 72 is tilted and fixed to the lower end of the sliding plate 43 so that the belt 75 can clamp the empty basket. When the third motor 71 is started, it drives the rotating column to rotate, thereby rotating the second pulley 74 and driving the belt 75 to move. At this time, the first pulley 73 rotates, and the belts 75 on both sides move, thereby transporting the empty basket clamped therewith from one side to the next work surface; the belt passes through the inner side of one of the first pulleys 73, which serves to tension the belt 75.

[0048] A method for continuously and automatically supplying baskets, comprising the above-mentioned device for continuously and automatically supplying baskets, comprises the following steps:

[0049] S1, the used empty basket is returned through the existing conveying device, and the empty basket enters the empty basket return module assembly 2, so that a single empty basket is placed on the roller 22, and the next step is performed;

[0050] In step S2, the empty basket lifting assembly 3 lifts the empty basket on the drum 22 upward. The first motor 39 drives the bottom rotating rod 31 to rotate through the first gear 36, the second gear 37, the second synchronous belt 38, etc., so that the first synchronous belt 34 moves. The supporting plate 35 on the first synchronous belt 34 drives the empty basket upward. During the lifting process, the guide plate 6 guides and limits the empty basket, and the next step is executed.

[0051] S3: When the distance between the bottom of the lowest empty basket and the roller 22 is greater than the height of the empty basket, step S1 is repeated. When the uppermost empty basket reaches the upper conveying position, that is, the height position at which the upper conveying assembly 4 is conveying, the empty basket lifting assembly 3 stops working. At this time, the conveying mechanism is in the avoidance position, and the next step is executed.

[0052] S4, the upper conveying component 4 drives the conveying mechanism to convey the empty basket horizontally, the second motor drives the rocker 5 to rotate, and drives the two sliding plates 43 to approach each other, so that the conveying mechanism interacts and approaches, and the belt 75 of the conveying mechanism clamps the two sides of the empty basket, and then the third motor 71 is started to control the movement of the belt 75, thereby conveying the empty basket to the next work surface. After the conveying is completed, repeat step S2 to convey the next empty basket.

[0053] The present invention realizes continuous lifting of empty baskets by providing an empty basket return module component 2 and an empty basket lifting component 3, greatly improving the efficiency of basket supply, shortening the waiting time of passengers, and improving the passenger experience; and the upper conveying component 4 is used to deliver the baskets through the side, reducing safety hazards and making the equipment safer, and through a series of clamping and conveying actions, the empty baskets can be conveyed to both sides.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A continuous automatic basket supply device, characterized in that: include: Continuous basket supply frame assembly (1), empty basket return module assembly (2), empty basket lifting assembly (3) and upper conveying assembly (4); The continuous basket supply frame assembly (1) comprises two rectangular frames (11) arranged in a vertical direction, vertical support rods (12) are connected between the four corners of the two rectangular frames (11), a guide plate (6) for limiting and correcting the empty basket is provided between each two vertical support rods (12), and a sealing plate (13) is provided on the top of the top rectangular frame (11); The empty basket return module assembly (2) comprises a bottom U-shaped support plate (21) and a plurality of rollers (22) for receiving the empty baskets, wherein the bottom U-shaped support plate (21) is located between the four vertical support rods (12), and the plurality of rollers (22) are arranged in sequence in the horizontal direction within the bottom U-shaped support plate (21), and the plurality of rollers (22) are parallel to each other; The empty basket lifting assembly (3) comprises two groups of symmetrically arranged lifting structures, each group of lifting structures comprises a bottom rotating rod (31) and two top rotating rods (32), the bottom rotating rod (31) is rotatably arranged on the bottom rectangular frame (11) along its own axis, and the top rotating rod (32) is rotatably arranged on the top rectangular frame (11), the bottom rotating rod (31) is parallel to the top rotating rod (32) and is perpendicular to the horizontal projection of the roller (22), and both ends of the bottom rotating rod (31) are coaxially fixed on the top rotating rod (32). A first synchronous wheel (33) is provided. A first synchronous belt (34) is connected between the first synchronous wheel (33) on the top rotating rod (32) and the first synchronous wheel (33) corresponding to the end of the bottom rotating rod (31). A plurality of supporting plates (35) for supporting the empty basket are arranged at intervals outside the first synchronous belt (34) and along the length direction of the first synchronous belt (34). The side of the supporting plate (35) in contact with the empty basket is a centrally raised arc surface. When the bottom rotating rod (31) rotates, the first synchronous belt (34) moves to drive the supporting plate (35) to support the empty basket to move upward. The upper conveying assembly (4) comprises an inverted U-shaped plate (41), a fixed rod (42) and a sliding plate (43); the inverted U-shaped plate (41) is connected to the rectangular frame (11) at the top; the two ends of the fixed rod (42) are respectively fixed to the inner walls at both ends of the inverted U-shaped plate (41); the two ends of the fixed rod (42) are slidably sleeved with sliding plates (43); a rocker (5) for controlling the two sliding plates (43) to slide toward each other is rotatably provided in the middle of the inverted U-shaped plate (41); a conveying mechanism for horizontally conveying empty baskets is fixed to the bottom of the sliding plate (43).

2. The continuous automatic basket supply device according to claim 1, characterized in that: The guide plate (6) is located between the empty basket return module assembly (2) and the upper conveying assembly (4), and the guide plate (6) includes an upper transverse plate (61), a lower transverse plate (62) and an inclined plate (63). The width of the upper transverse plate (61) is greater than the width of the lower transverse plate (62), and the outer side of the upper transverse plate (61) is aligned with the outer side of the lower transverse plate (62). The inclined plate (63) is connected between the inner side of the upper transverse plate (61) and the inner side of the lower transverse plate (62). A side plate (64) is fixedly connected between the end of the upper transverse plate (61) and the end of the lower transverse plate (62), and the side plate (64) is connected to the vertical support rod (12).

3. The continuous automatic basket supply device according to claim 1, characterized in that: L-shaped connecting plates (211) are symmetrically connected to both ends of the bottom U-shaped support plate (21), and the L-shaped connecting plates (211) are fixedly connected to the vertical support rod (12). A notch is provided on the L-shaped connecting plate (211) for facilitating the passage of the first synchronous belt (34).

4. The continuous automatic basket supply device according to claim 1, characterized in that: A cross bar is provided in the rectangular frame (11) at the bottom, and a first motor (39) is fixed on the cross bar. The output shaft of the first motor (39) is coaxially connected to the first transmission shaft, and the first transmission shaft is coaxially connected to the first gear (36). A second transmission shaft is also provided, and the second transmission shaft is coaxially connected to a second gear (37) meshing with the first gear (36). A second synchronous wheel is coaxially provided on the bottom rotating rod (31), and the first transmission shaft and the second transmission shaft are respectively provided with second synchronous wheels corresponding to the two bottom rotating rods (31). A second synchronous belt (38) is connected between the second synchronous wheels on the first transmission shaft and the second transmission shaft and the second synchronous wheels on the corresponding bottom rotating rod (31).

5. The continuous automatic basket supply device according to claim 1, characterized in that: Two fixed rods (42) are provided, and sliding plates (43) are slidably sleeved on both ends of each fixed rod (42), and a conveying mechanism is commonly fixed on the bottom of the sliding plates (43) at the same end.

6. The continuous automatic basket supply device according to claim 5, characterized in that: A second motor is provided on the inverted U-shaped plate (41), the output shaft of the second motor passes through the inverted U-shaped plate (41) and is fixedly connected to the middle of the rocker (5), a push-pull plate (421) is connected between the two sliding plates (43), and pull rods (51) are hinged between the two ends of the rocker (5) and the two push-pull plates (421).

7. The continuous automatic basket supply device according to claim 1, characterized in that: The conveying mechanism comprises a third motor (71) and two fixed plates (72), the inner side of the fixed plate (72) is a straight edge, a plurality of fixed columns are fixedly arranged between the two fixed plates (72) and along the edge of the fixed plate (72), a first pulley (73) is coaxially rotated on the fixed column, the third motor (71) is fixed on one fixed plate (72), the output shaft of the third motor (71) passes through the fixed plate (72) and is coaxially connected to a rotating column, the rotating column is rotatably connected to the fixed plate (72), a second pulley (74) is coaxially fixedly connected to the rotating column, and a belt (75) that can contact the empty basket is transmission-connected to the first pulley (73) and the second pulley (74).

8. The continuous automatic basket supply device according to claim 1, characterized in that: A plurality of rotating bases are fixedly connected to the rectangular frame (11), and the bottom rotating rod (31) and the top rotating rod (32) are respectively and correspondingly connected to the rotating bases.

9. The continuous automatic basket supply device according to claim 2, characterized in that: The two guide plates (6) are located between two first synchronous belts (34) on the same side.

10. A method for continuously and automatically supplying baskets, comprising the device for continuously and automatically supplying baskets according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the empty basket enters the empty basket return module assembly (2), so that a single empty basket is placed on the drum (22), and the next step is performed; S2, the empty basket lifting assembly (3) lifts the empty basket on the drum (22) upwards, and the guide plate (6) guides and limits the basket during the lifting process, and the next step is executed; S3, when the distance between the bottom of the lowest empty basket and the roller (22) is greater than the height of the empty basket, step S1 is repeated, and when the uppermost empty basket reaches the upper conveying position, the empty basket lifting assembly (3) stops working and the next step is executed; S4, the upper conveying assembly (4) drives the conveying mechanism to convey the empty basket horizontally, and conveys the empty basket to the next work surface. After the conveying is completed, step S2 is repeated.

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