CN115991373A

CN115991373A - Gravity sliding table

Info

Publication number: CN115991373A
Application number: CN202310224740.2A
Authority: CN
Inventors: 王磊; 王集福; 许兵; 杨超; 王欢
Original assignee: Shanghai Show Kyoel Automotive Equipment Co ltd; Xiaoao Industrial Intelligence Equipment Suzhou Co ltd; Shanghai Xiaoao Xiangrong Automation Equipment Co ltd
Current assignee: Shanghai Show Kyoel Automotive Equipment Co ltd; Xiaoao Industrial Intelligence Equipment Suzhou Co ltd; Shanghai Xiaoao Xiangrong Automation Equipment Co ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-04-21

Abstract

The utility model relates to a technical field of car processing equipment especially relates to gravity slip table, including the frame with set up the track in the frame, be provided with release mechanism one in the frame, release mechanism one including set up in frame department and be used for stopping and release the dog one with set up in the frame be used for driving the pivoted slewing mechanism of dog one, rotate the outside back of frame along the direction of height of frame on the dog one, a pair of tray of dog blocks. The application has the effect of being capable of improving the convenience of placing the workpiece.

Description

Gravity sliding table

Technical Field

The application relates to the technical field of automobile machining equipment, in particular to a gravity sliding table.

Background

At present, in the automobile production and processing process, workpieces are required to be conveyed through conveying equipment, wherein a power sliding table is the most common conveying equipment in automobile processing, a motor is usually adopted as a power source for the power sliding table, a chain or a belt is adopted as a transmission part, a sliding friction mode is adopted to drive a workpiece tray to convey on a track, and then conveying of the automobile workpieces is achieved, the gravity sliding table is one of the power sliding tables, and the gravity sliding table utilizes gravity as 'main power' to drive the workpieces to slide on a roller way.

The existing gravity sliding table generally comprises a rack and a track arranged on the rack, the track is obliquely arranged along the rack, when workpieces are conveyed, workers are required to place the workpieces on a tray, the tray is placed at the higher end of the track, the workpieces slide towards the lower end of the track under the action of gravity of the workpieces, the workpieces are placed one by one at intervals, and then a plurality of workpieces are conveyed.

In the related art, when a plurality of workpieces are conveyed, the workpieces need to be placed one by one, so that the workpieces are inconvenient to place.

Disclosure of Invention

In order to be able to promote the convenience of placing of work piece, this application provides gravity slip table.

The application provides a gravity slip table adopts following technical scheme:

the gravity sliding table comprises a rack and a track arranged on the rack, wherein a first release mechanism is arranged on the rack and comprises a first stop block arranged at the rack and used for blocking and releasing the tray and a rotating mechanism arranged on the rack and used for driving the first stop block to rotate, and the first stop block rotates to the outside of the rack along the height direction of the rack, and the first stop block is blocked by a pair of trays.

Through adopting above-mentioned technical scheme, when carrying a plurality of work pieces, through placing a plurality of work pieces respectively on a plurality of trays, once only place a plurality of trays on the track, drive dog one through slewing mechanism and rotate for a pair of tray of dog blocks, can buffer memory a plurality of work pieces, and drive dog one through slewing mechanism and rotate, make dog one no longer block the tray, carry one by one to the work piece, can promote the convenience of placing of work piece.

Optionally, the rotating mechanism comprises a rotating component for driving the first stop block to rotate and a first driver which is rotationally matched with the frame and used for pushing the rotating component to rotate.

Through adopting above-mentioned technical scheme, start driver one, can drive rotating assembly and rotate, and then drive dog one and rotate, rotate the outside of frame after the dog one, can realize stopping to the tray, rotate the inside of frame after the dog one, no longer stop to the tray.

Optionally, the rotating assembly includes rotating rod one and the rotor plate that rotate in the frame and be used for driving first rotation of dog, the one end of rotor plate sets up on first rotating rod, and the other end is connected with driver one.

Through adopting above-mentioned technical scheme, start driver one, can drive the rotation of rotating plate, and then drive rotary rod one and rotate, drive dog one and rotate, and then realize the rotation regulation to dog one.

Optionally, a conveying track for conveying the used tray is arranged on the rack and below the track, and the conveying track is obliquely upwards arranged along the conveying direction of the tray on the track.

Through adopting above-mentioned technical scheme, through the setting of delivery track for after taking the work piece on the tray, the tray can slide along delivery track, and slides orbital material loading department, and then conveniently places the work piece again and carry out the material loading operation on the tray.

Optionally, the material loading end department of track is provided with climbing mechanism, climbing mechanism is including the jacking frame that is used for placing the tray and install in the frame and be used for driving the driver two that the jacking frame goes up and down.

Through adopting above-mentioned technical scheme, through climbing mechanism's setting, start driver two, can drive the jacking frame and rise, and then use the tray jacking to track department on the delivery track.

Optionally, the jacking frame comprises a fixing frame arranged on the second driver, a rotating shaft in rotating fit with the fixing frame and a rotating frame arranged on the rotating shaft.

Through adopting above-mentioned technical scheme, when the jacking frame used, when the jacking frame was located track department, rotated the rotating turret round the pivot for the rotating turret sets up downwards along the upward slope of the direction of delivery of the work piece on the track, and then makes the work piece carry along the rotating turret, and when the jacking frame was located delivery track department, the rotating turret rotated round the pivot, made the rotating turret set up downwards along the upward slope of the direction of delivery of the tray on the delivery track, made the tray carry along the rotating turret, and then make the transportation of tray more high-efficient.

Optionally, be provided with adjustment mechanism on the mount, adjustment mechanism is including being used for pulling the rotating turret along the upward elastic component that sets up of the upward slope of direction of delivery of tray on the track and installing on the rotating turret and be close to orbital stopper of discharge end department, the one end and the rotating turret normal running fit of elastic component, the other end and mount normal running fit, be provided with the spacing portion that is used for carrying out spacing to the stopper in the frame, the stopper butt is after on spacing portion, the rotating turret sets up downwards along the direction of delivery of tray on the track slope.

Through adopting above-mentioned technical scheme, through adjustment mechanism's setting, the elastic component pulling rotating turret for the rotating turret sets up downwards along the direction of delivery slope of the tray on the delivery track, when needs carry the work piece, and the rotating turret rises, and after the stopper butt was on spacing portion, spacing portion promotes the rotating turret and rotates, and with the elastic component tensile, makes the rotating turret can be along the direction of delivery slope downward setting of the work piece on the track.

Optionally, be provided with positioning mechanism on the mount, positioning mechanism is including installing the locating lever on the rotating turret and installing on the mount and be used for carrying out the reference column that fixes a position to the locating lever, when the rotating turret rotated to with track parallel arrangement, the locating lever butt is on the reference column.

Through adopting above-mentioned technical scheme, through positioning mechanism's setting for the rotating turret rotates when setting up with track parallel, and the locating lever butt is on the reference column, fixes a position the locating lever, reduces the rotating turret and continues to rotate, leads to the rotating turret unable to be parallel with the track, leads to the conveying efficiency of work piece lower.

Optionally, the unloading end department of track is provided with lower piece mechanism, lower piece mechanism is including setting up the lower piece frame in the frame and installing in the frame and be used for driving the driver three of lower piece frame lift.

Through adopting above-mentioned technical scheme, through the setting of unloading mechanism, start the driver three, can drive down a frame decline, and then remove the tray after using from track department to delivery track department, carry the tray, and then realize the recycling to the tray.

Optionally, a compressing and positioning mechanism is arranged on the fixing frame and comprises a positioning claw for compressing and locking the tray and a driver IV which is arranged on the fixing frame and used for driving the positioning claw to move.

Through adopting above-mentioned technical scheme, through compressing tightly positioning mechanism's setting, start the driver four, can drive the locating claw motion, can extrude the locking to the tray through the locating claw, and then realize the location to the tray for the position after lower frame area piece tray motion is more accurate, the precision is higher, makes the robot more high-efficient with the taking of the work piece on the rotating turret.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a plurality of workpieces are required to be conveyed, the workpieces are placed on the trays respectively, the trays are placed on the track at one time, the first stopper is driven to rotate through the rotating mechanism, the first stopper is blocked by the pair of trays, the workpieces can be cached, the first stopper is driven to rotate through the rotating mechanism, the first stopper is prevented from blocking the trays, the workpieces are conveyed one by one, and the convenience of placing the workpieces can be improved.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view showing the connection relationship between the lifting mechanism and the positioning mechanism

FIG. 4 is a partial cross-sectional view showing the connection of the release mechanism one with the frame;

FIG. 5 is a partial enlarged view at B in FIG. 4;

FIG. 6 is a schematic structural view showing the connection of the hold-down positioning mechanism to the tray;

FIG. 7 is a partial cross-sectional view showing the connection relationship of the second release mechanism to the conveyor track;

fig. 8 is a partial enlarged view at C in fig. 7.

Reference numerals illustrate: 1. a frame; 11. a limit part; 2. a track; 3. a first releasing mechanism; 31. a first stop block; 32. a rotating mechanism; 321. a rotating assembly; 322. a first driver; 323. rotating the first rod; 324. a rotating plate; 4. a tray; 5. a conveying rail; 6. a jacking mechanism; 61. a jacking frame; 611. a fixing frame; 612. a rotating shaft; 613. a rotating frame; 62. a second driver; 7. an adjusting mechanism; 71. an elastic member; 72. a limiting block; 8. a positioning mechanism; 81. a positioning rod; 82. positioning columns; 9. a discharging mechanism; 91. a lower frame; 92. a third driver; 10. a compacting and positioning mechanism; 101. a positioning claw; 102. a fourth driver; 12. a guide rod; 13. a rolling slideway; 14. a speed reducing mechanism; 141. a mounting frame; 142. damping roller; 15. a release mechanism II; 151. a second stop block; 152. rotating the second rod; 153. a heavy hammer; 154. the pinch roller.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses a gravity sliding table. Referring to fig. 1 and 2, the workpiece conveying device comprises a frame 1 and a rail 2 arranged on the frame 1, wherein the rail 2 is obliquely downwards arranged along the conveying direction of the workpiece, a first release mechanism 3 is arranged on the frame 1 and positioned at the rail 2, the first release mechanism 3 is used for controlling a tray 4 reaching the first release mechanism 3, a conveying rail 5 used for conveying the used tray 4 is arranged on the frame 1 and positioned below the rail 2, and the conveying rail 5 is obliquely upwards arranged along the conveying direction of the tray 4 on the rail 2. When the workpiece is required to be conveyed, the workpiece is firstly placed on the tray 4, then the tray 4 is placed on the track 2, a plurality of workpieces and the tray 4 are sequentially placed, the tray 4 slides along the track 2 under the action of gravity of the tray 4 and the workpieces, when the tray 4 moves to the first 3 position of the release mechanism, the first 3 position of the release mechanism blocks the tray 4, when the workpiece is required to be taken, the first 3 position of the release mechanism does not block the tray 4 any more, one tray 4 reaches the unloading end of the track 2, the workpiece on the tray 4 is taken by a robot, then the empty tray 4 is placed on the conveying track 5, the hole tray 4 slides along the conveying track 5 and slides to the lower part of the feeding end of the track 2, and the workpiece conveying operation is realized.

Referring to fig. 1 and 2, rolling slide ways 13 are mounted on the

rails

2 and 5, the rolling slide ways 13 comprise a support frame fixedly mounted on the

rails

2 and 5 and a rotating wheel in rotation fit with the support frame, when the tray 4 is placed, the lower surface of the tray 4 is abutted to the rotating wheel, and the tray 4 can slide along the rolling slide ways 13 in the conveying process, so that the conveying of the tray 4 is more efficient. Guide rods 12 are fixedly installed on the rails 2 and the conveying rails 5, the guide rods 12 are arranged along the length direction of the rails 2, the bottom ends of the trays 4 are in sliding fit on the guide rods 12, and the trays 4 always slide along the guide rods 12 in the conveying process.

Referring to fig. 1 and 2, a plurality of speed reducing mechanisms 14 are arranged on the track 2 and the conveying track 5 at intervals, each speed reducing mechanism 14 comprises a mounting frame 141 fixedly mounted on the track 2 and the conveying track 5 and a damping roller 142 in running fit with the mounting frame 141, the lower surface of the tray 4 is abutted against the damping roller 142, the tray 4 can be conveyed along the damping roller 142 when conveyed, the downward sliding tray 4 is decelerated through the damping roller 142, and the tray 4 is ensured to be more uniform and stable in the downward sliding process.

Referring to fig. 4 and 5, the first releasing mechanism 3 includes a first stopper 31 disposed at the frame 1 and used for blocking and releasing the tray 4, and a rotating mechanism 32 disposed on the frame 1 and used for driving the first stopper 31 to rotate, the first stopper 31 is a T-shaped block, the rotating mechanism 32 includes a rotating component 321 used for driving the first stopper 31 to rotate, and a first driver 322 rotationally matched with the frame 1 and used for pushing the rotating component 321 to rotate, the first driver 322 can directly adopt an air cylinder, and the cylinder body of the first driver 322 is rotationally matched with the frame 1 through a supporting plate.

Referring to fig. 4 and 5, the rotating assembly 321 includes a first rotating rod 323 and a first rotating plate 324, which are rotatably engaged with the frame 1 and are used for driving the first stop 31 to rotate, the first rotating plate 324 includes two plates that are rotatably engaged, one end of one plate is fixedly connected with a piston rod of the first driver 322, one end of the other plate, which is away from the first driver 322, is connected with the first rotating rod 323, and the first rotating rod 323 is disposed along the longitudinal direction of the frame 1. When the tray 4 needs to be blocked, the first driver 322 is started, the piston rod of the first driver 322 extends to push the rotating plate 324 to move, and the first rotating rod 323 is driven to rotate to drive the first stop block 31 to rotate, so that the first stop block 31 rotates to a vertical position, and after the top end of the first stop block 31 rotates to the outside of the frame 1 along the height direction of the frame 1, the first stop block 31 blocks the tray 4 (the state of the first stop block is shown in fig. 5).

Referring to fig. 4 and 5, when the tray 4 needs to be placed, the first driver 322 is started, the piston rod of the first driver 322 is retracted, the rotating plate 324 is driven to move, the first rotating rod 323 is driven to rotate, the first stop block 31 is driven to rotate from the vertical position to the horizontal position, the first stop block 31 releases the tray 4, and the tray 4 continues to be conveyed through the first release mechanism 3.

Referring to fig. 7 and 8, the conveying rail 5 is provided with a second release mechanism 15, and the second release mechanism 15 is used for controlling the passage of the tray 4 moving to the second release mechanism 15. The second releasing mechanism 15 comprises a second stop block 151 arranged at the conveying track 5, a second rotating rod 152 fixedly arranged on the second stop block 151 and a heavy hammer 153 fixedly arranged on the second rotating rod 152, a rack for rotatably supporting the second rotating rod 152 is fixedly arranged on the conveying track 5, the second stop block 151 is of a T-shaped structure, a pressing wheel 154 is fixedly arranged on the second rotating rod 152, and in an initial state, the gravity of the heavy hammer 153 drives the second rotating rod 152 to rotate, so that the second stop block 151 and the pressing wheel 154 rotate towards the vertical position to block the tray 4. When more trays 4 are located at the second stop block 151, the trays 4 close to the feeding end of the track 2 are pushed to slide and squeeze the pressing wheel 154, so that the pressing wheel 154 rotates to the horizontal position and drives the second rotating rod 152 to rotate, and the second stop block 151 and the heavy hammer 153 are driven to rotate, so that the second stop block 151 does not block the trays 4 any more, and the trays 4 can be conveyed through the second release mechanism 15.

Referring to fig. 1 and 3, a lifting mechanism 6 is disposed at the feeding end of the track 2, where the lifting mechanism 6 includes a lifting frame 61 for placing the tray 4 and a second driver 62 fixedly mounted on the frame 1 and used for driving the lifting frame 61 to lift, and the second driver 62 may directly adopt a pneumatic sliding table. The jacking frame 61 comprises a fixing frame 611 fixedly installed on the second driver 62, a rotating shaft 612 in rotating fit with the fixing frame 611 and a rotating frame 613 installed on the rotating shaft 612, the rotating shaft 612 is arranged along the width direction of the frame 1, a rotating seat is installed at the bottom end of the rotating frame 613, and the rotating frame 613 is in rotating fit with the rotating shaft 612 through the rotating seat.

Referring to fig. 1 and 3, an adjusting mechanism 7 is provided on a fixing frame 611, the adjusting mechanism 7 includes an elastic member 71 for pulling a rotating frame 613 to be inclined upward along a conveying direction of a tray 4 on a track 2, and a limiting block 72 fixedly installed on the rotating frame 613 and close to a discharging end of the track 2, the elastic member 71 can directly employ a spring, hooks are installed on both the rotating frame 613 and the fixing frame 611, one end of the elastic member 71 is in running fit with the rotating frame 613 by being inserted into the hook, and the other end is in running fit with the fixing frame 611 by being inserted into another hook, and the limiting block 72 is an L-shaped block. The frame 1 is provided with a limiting part 11 for limiting the limiting block 72, and the limiting part 11 and the limiting block 72 are correspondingly arranged along the height direction of the frame 1.

Referring to fig. 1 and 3, in an initial state, the elastic member 71 pulls the rotating frame 613, rotates the rotating frame 613, and causes the rotating frame 613 to be disposed obliquely upward along the conveying direction of the work on the rail 2. When the workpiece is required to be lifted and conveyed, the driver II 62 is started to drive the lifting frame 61 to lift and drive the limiting block 72 to lift, when the limiting block 72 is abutted on the limiting part 11 and the fixing frame 611 continues to lift, the rotating frame 613 is driven to rotate, one end of the rotating frame 613, which deviates from the limiting block 72, is rotated upwards, the rotating frame 613 is arranged obliquely downwards along the conveying direction of the tray 4 on the track 2, and the tray 4 on the rotating frame 613 is conveyed along the track 2.

Referring to fig. 1 and 3, in order to reduce the phenomenon that the rotation angle of the rotating frame 613 is large, and thus the rotating frame 613 and the track 2 cannot be arranged in parallel, a positioning mechanism 8 is arranged on the fixing frame 611, the positioning mechanism 8 comprises a positioning rod 81 fixedly mounted on the rotating frame 613 and a positioning column 82 fixedly mounted on the fixing frame 611 and used for positioning the positioning rod 81, the positioning rod 81 is of a T-shaped structure, and when the rotating frame 613 rotates to be arranged in parallel with the track 2, the positioning rod 81 abuts against the positioning column 82 to limit the positioning rod 81.

Referring to fig. 1 and 6, a lower mechanism 9 is disposed at the unloading end of the track 2, where the lower mechanism 9 includes a lower frame 91 disposed on the frame 1 and a third driver 92 fixedly mounted on the frame 1 and used for driving the lower frame 91 to lift, the third driver 92 may directly adopt an air cylinder, a cylinder body of the third driver 92 is fixedly connected with the frame 1, a piston rod of the third driver 92 is fixedly connected with the lower frame 91, and the lower frame 91 has the same structure as the jacking frame 61. When the tray 4 is conveyed to the unloading end from the loading end of the track 2, the tray 4 slides onto the lower piece frame 91, after the robot takes the workpiece, the driver III 92 is started to drive the lower piece frame 91 to descend and descend to the conveying track 5, and the empty tray 4 slides along the conveying track 5 and slides to the lower part of the loading end of the track 2, so that conveying operation of the workpiece and the tray 4 is completed.

Referring to fig. 6, in order to ensure that the position of the tray on the lower frame 91 is more accurate and the precision is higher, and ensure that the robot can take a piece smoothly, a compressing and positioning mechanism 10 is arranged on a fixing frame 611, the compressing and positioning mechanism 10 comprises a positioning claw 101 for compressing and locking the tray 4 and a driver four 102 fixedly arranged on the fixing frame 611 and used for driving the positioning claw 101 to move, the driver four 102 can directly adopt an air cylinder, a cylinder body of the driver four 102 is fixedly connected with the fixing frame 611, a piston rod of the driver four 102 is fixedly connected with the positioning claw 101, and the positioning claw 101 is in an 'F' -shaped structure. When the tray 4 moves to the lower frame 91, the fourth driver 102 is started to drive the positioning claw 101 to slide, the tray 4 is pressed and positioned through the positioning claw 101, the top end of the positioning claw 101 is abutted to the upper surface of the tray 4, the side surface of the positioning claw 101 is abutted to the side surface of the tray 4, and the positioning of the tray 4 is realized.

The implementation principle of the gravity sliding table of the embodiment of the application is as follows: when the workpieces are required to be conveyed, the workpieces are firstly placed on the tray 4, then the tray 4 is placed on the jacking frame 61, the driver II 62 is started to drive the jacking frame 61 to ascend to the position of the track 2, the rotating frame 613 is obliquely arranged, the tray 4 can slide along the track 2 under the action of gravity of the tray 4 and the workpieces, when the tray 4 slides to the first release mechanism 3, the first release mechanism 3 is used for blocking the tray 4, and when the tray 4 is required to be conveyed, the first release mechanism 3 is used for not blocking the tray 4 any more, and the tray 4 can pass through the first release mechanism 3 and then reach the position of the lower piece frame 91;

then the robot takes the workpiece on the lower frame 91, after the taking is completed, the driver III 92 is started to drive the lower frame 91 to descend, so that the empty tray 4 moves to the conveying track 5, then the empty tray 4 is conveyed along the conveying track 5, and conveyed to the second 15 of the releasing mechanism and then reaches the conveying track 5 below the feeding end of the track 2, and the workpiece conveying operation is performed again.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The gravity slip table, including frame (1) and track (2) of setting on frame (1), its characterized in that: be provided with release mechanism one (3) on frame (1), release mechanism one (3) is including setting up in frame (1) department and be used for blockking and release dog one (31) and setting up on frame (1) be used for driving dog one (31) pivoted slewing mechanism (32), after the outside of frame (1) is rotated in the direction of height of frame (1) in dog one (31), dog one (31) blocks tray (4).

2. The gravity slide according to claim 1, wherein: the rotating mechanism (32) comprises a rotating component (321) for driving the first stop block (31) to rotate and a first driver (322) which is rotationally matched with the frame (1) and used for pushing the rotating component (321) to rotate.

3. The gravity slide according to claim 2, wherein: the rotating assembly (321) comprises a first rotating rod (323) and a first rotating plate (324), wherein the first rotating rod (323) and the first rotating plate (324) are in rotating fit on the frame (1) and are used for driving the first stop block (31) to rotate, one end of the first rotating plate (324) is arranged on the first rotating rod (323), and the other end of the first rotating plate is connected with the first driver (322).

4. The gravity slide according to claim 1, wherein: the tray conveying device is characterized in that a conveying rail (5) used for conveying the used tray (4) is arranged on the frame (1) and below the rail (2), and the conveying rail (5) is obliquely upwards arranged along the conveying direction of the tray (4) on the rail (2).

5. The gravity slide of claim 4, wherein: the lifting mechanism (6) is arranged at the feeding end of the track (2), and the lifting mechanism (6) comprises a lifting frame (61) for placing the tray (4) and a second driver (62) which is arranged on the frame (1) and used for driving the lifting frame (61) to lift.

6. The gravity slide of claim 5, wherein: the jacking frame (61) comprises a fixed frame (611) arranged on the second driver (62), a rotating shaft (612) rotatably matched with the fixed frame (611) and a rotating frame (613) arranged on the rotating shaft (612).

7. The gravity slide of claim 6, wherein: be provided with adjustment mechanism (7) on mount (611), adjustment mechanism (7) are including being used for pulling elastic component (71) that tray (4) on track (2) upward set up along the direction of delivery slope of tray (4) on track (2) and install stopper (72) on rotating frame (613) and be close to the discharge end department of track (2), one end and rotating frame (613) normal running fit of elastic component (71), the other end and mount (611) normal running fit, be provided with on frame (1) and be used for carrying out spacing portion (11) to stopper (72), after stopper (72) butt is on spacing portion (11), the upward slope of tray (4) on track (2) on rotating frame (613) down sets up.

8. The gravity slide of claim 7, wherein: the positioning mechanism (8) is arranged on the fixing frame (611), the positioning mechanism (8) comprises a positioning rod (81) arranged on the rotating frame (613) and a positioning column (82) arranged on the fixing frame (611) and used for positioning the positioning rod (81), and when the rotating frame (613) rotates to be arranged in parallel with the track (2), the positioning rod (81) is abutted to the positioning column (82).

9. The gravity slide of claim 6, wherein: the unloading end of the track (2) is provided with a lower mechanism (9), and the lower mechanism (9) comprises a lower frame (91) arranged on the frame (1) and a driver III (92) arranged on the frame (1) and used for driving the lower frame (91) to lift.

10. The gravity slide of claim 9, wherein: the fixing frame (611) is provided with a compressing and positioning mechanism (10), and the compressing and positioning mechanism (10) comprises a positioning claw (101) for compressing and locking the tray (4) and a fourth driver (102) which is arranged on the fixing frame (611) and used for driving the positioning claw (101) to move.