Automatic car loader

Abstract

The invention relates to the technical field of car loaders, in particular to an automatic car loader which is used for transferring material bags on a conveyor to a transport vehicle and comprises a first rail parallel to the conveyor, a first frame is slidably hung on the first rail, and the first frame drives a bag discharging hopper to transversely move along the first rail; a second frame is arranged in the first frame in a sliding mode, and the second frame drives the bag discharging hopper to vertically move along the first frame. A second track is arranged in the second frame, and the bag placing device drives the bag discharging hopper to longitudinally move along the second track; the bag placing device comprises a telescopic arm, a bag discharging hopper arranged at the movable end of the telescopic arm and a fourth driving device for driving the bag discharging hopper to vertically move. In the vertical direction, first-time lifting is achieved through the second frame, then second-time lifting is achieved through the telescopic arm, the length of the gliding belt conveyor is greatly shortened, the overall occupied area of the device is small, and the safety coefficient is high.

Description

Technical Field

[0001] This invention relates to the field of loading machine technology, and more specifically to an automatic loading machine. Background Technology

[0002] In the field of automatic loading machine technology, modern loading machines can automatically unload bagged materials such as soybean meal and flour, greatly reducing the labor intensity of workers. For example, Chinese invention patent application CN102180362A discloses an all-around bagged material loading machine. This loading machine includes a suspended trolley that reciprocates along a track beam, a rotary machine that drives the suspended trolley to rotate, a bag-receiving hopper structure set on the suspended trolley, and a sliding belt conveyor located below the outlet of the bag-receiving hopper structure. The front end of the inclined sliding belt conveyor is equipped with a bag-receiving electrical control platform. In use, the position of the bag-receiving electrical control platform corresponding to the car body is adjusted by the movement and rotation of the trolley, realizing automatic bagging of the entire vehicle.

[0003] However, in practical use, the existing technology has the following problems: (1) Most existing loading machines use a rotating sliding belt conveyor to achieve lifting. The further the transport vehicle is from the top transport track, the longer the length of the loading machine's sliding belt conveyor becomes. The length of the sliding belt conveyor restricts the overall size of the device.

[0004] (2) In the existing technology, the lower bag bucket is directly connected to the tail of the sliding belt conveyor to realize automatic feeding. In actual use, once the lower bag bucket falls, the entire device will fall together, resulting in high on-site safety risks.

[0005] Therefore, there is an urgent need for an automated loading machine that has a large load-bearing capacity, is safer, and occupies a small area. Summary of the Invention

[0006] This invention addresses the problems of traditional loading machines that rely on rotating sliding conveyor belts for lifting and lowering, which are characterized by long sliding conveyor belts, low safety, large overall footprint, and high safety risks. It provides an automatic loading machine that achieves first-stage lifting in the vertical direction via a second frame, followed by second-stage lifting via a telescopic arm. This significantly shortens the length of the sliding conveyor belt, reduces the overall footprint, and increases safety.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: An automatic loading machine for transferring bales from a conveyor to a transport vehicle includes a first track arranged parallel to the conveyor for conveying the bales.

[0008] A first frame is slidably suspended on the first track. The first frame is driven by a first drive device and moves laterally along the first track; the first frame drives the lower bucket to move laterally.

[0009] A second frame is slidably disposed within the first frame. The second frame is driven by a second driving device and moves vertically relative to the first frame; the second frame causes the lower hopper to move vertically for the first time. A second track is set within the second frame, and a bag-laying device is slidably mounted on the second track. The bag-laying device is driven by a third drive device and moves longitudinally along the second track. The bag-laying device includes a telescopic arm, a lower bag bucket located at the movable end of the telescopic arm, and a fourth drive device that drives the lower bag bucket to move vertically. The bag-laying device drives the lower bag bucket to move longitudinally, and the telescopic arm drives the lower bag bucket to move vertically a second time.

[0010] A feeding device is provided on the first frame and / or the second frame. The feeding end of the feeding device receives the conveying surface of the conveyor and intercepts the material bags on the conveyor, transferring them to the lower bag hopper. The feeding device supplies material to the lower bag hopper.

[0011] Furthermore, the feeding device includes a guide plate, an inclined chute, and a sliding belt conveyor assembly arranged sequentially. The guide plate is fixed to the first frame and has a gap with the conveyor surface of the conveyor. The guide plate is arc-shaped towards the receiving surface of the material bag. One end of the inclined chute receives the discharge end of the guide plate, and the other end connects to the inlet end of the sliding belt conveyor assembly. The sliding belt conveyor assembly is slidably connected to the first frame and rotatably connected to the second frame. The feeding device transfers the material bag on the conveyor surface of the conveyor to the lower bag hopper.

[0012] Furthermore, the sliding conveyor assembly includes a horizontal conveyor and at least one inclined conveyor. The bottom of the horizontal conveyor is equipped with a translation component, which includes a support base plate fixed to the bottom of the horizontal conveyor and rollers disposed on both sides of the support base plate. The first frame has grooves that match the rollers. One end of the inclined conveyor is hinged to the horizontal conveyor via a hinge shaft, and the other end is hinged to a second frame via a hinge shaft. The second frame is equipped with a hinge seat that matches the hinge shaft. The sliding conveyor assembly is slidably connected to the first frame and rotatably connected to the second frame.

[0013] Furthermore, the inclined belt conveyor has a multi-segment structure, with multiple segments connected end-to-end and driven by independent drive motors. A bale-blocking plate is movably installed on the inclined belt conveyor, driven by a drive mechanism to block the conveying of bales. When the bottom end of the bale-blocking plate is on the surface of the inclined belt conveyor, it blocks the conveying of bales; when the bottom end of the bale-blocking plate is away from the surface of the inclined belt conveyor, the bales are conveyed normally. The multi-segment inclined belt conveyor is used to adjust the bale drop interval.

[0014] Furthermore, a material distribution device is provided between the feeding device and the bag-laying device. The material distribution device includes multiple conveyor lines arranged on the second frame and a material transfer mechanism that switches the bags between the multiple conveyor lines. The inlet end of at least one of the conveyor lines receives the outlet end of the feeding device, and the outlet end of the conveyor line corresponds one-to-one with the bag-laying hopper. The material distribution device converts one transportation channel into multiple transportation channels.

[0015] Furthermore, the conveyor line includes a high-level conveyor line and a low-level conveyor line, with a sliding plate connecting the high-level and low-level conveyor lines. The material transfer mechanism includes a third track spanning above the multiple conveyor lines, a push plate slidably mounted on the third track, and a fifth drive mechanism that drives the push plate to reciprocate linearly along the third track, pushing the material bag from the high-level conveyor line into the low-level conveyor line. The material bag slides from the sliding plate into the low-level conveyor line.

[0016] Furthermore, the first frame includes a lifting section, and both the lifting section and the second frame are rectangular frame structures. The top of the lifting section is provided with a moving wheel assembly that matches the first track. The outer corner of the second frame is provided with a lifting guide wheel assembly that rolls with the inner sidewall of the lifting section. A baffle is provided on the inner side of the bottom of the lifting section. The baffle is located on the downward path of the lifting guide wheel assembly and limits the maximum displacement of the second frame. The lifting section and the second frame are nested.

[0017] Furthermore, the lifting guide wheel assembly includes a mounting base and guide wheels disposed on the mounting base. The mounting base is L-shaped, with a first side fixed to the outer corner of the second frame, and at least two guide wheels spaced vertically along the second side of the mounting base. Two sets of mounting bases are symmetrically arranged at each corner of the second frame, with the guide wheels on the two sets of mounting bases at each corner perpendicular to each other. The guide wheels are used to define the direction of movement of the second frame.

[0018] Furthermore, the second driving device includes a drive motor, a reducer, a rope drum, and a wire rope. The reducer is mounted on the first frame, with its input end connected to the drive motor and its output end connected to the rope drum. Several pulleys are mounted on both the first and second frames. One end of the wire rope is wound around the rope drum, and the other end passes over the pulleys and is fixed to a lifting point on the first frame. The wire rope is used to pull the second frame.

[0019] Furthermore, two sets of rope drums, wire ropes, and pulley systems are symmetrically arranged on both sides of the reducer, and a fall arrestor is installed between the first frame and the second frame. This makes the lifting and lowering of the second frame more stable and improves safety.

[0020] The beneficial effects of the present invention through the above technical solution are as follows: This invention features a second frame nested within a first frame. A second driving device drives the second frame to move vertically relative to the first frame, completing one lifting operation. A retractable lower hopper is located within the second frame, and a fourth driving device drives the lower hopper to move vertically, completing a second lifting operation. This secondary lifting structure significantly shortens the length of the unloading device, reducing the footprint of the loading machine while extending the vertically movable distance of the lower hopper, reducing the material drop height, and improving drop accuracy.

[0021] The feeding device and bag-laying device of the present invention are fixed by a first frame and a second frame, and a baffle is provided at the bottom of the first frame. A fall arrestor and a steel wire rope can be installed between the first frame and the second frame, making the structure more stable. The structure in which the second frame completes one lifting and lowering operation first, and then the telescopic arm completes the second lifting and lowering operation, makes the lever arm of the telescopic arm shorter, avoiding swaying caused by an excessively long lever arm and allowing it to bear a greater weight. The lower bag bucket is fixed separately from the feeding device to prevent the entire device from falling due to the lower bag bucket falling, thus improving safety. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the first framework of the present invention; Figure 4 This is a schematic diagram of the second frame structure of the present invention; Figure 5 This is a schematic diagram of the material dispensing device and the packaging device of the present invention; Figure 6 This is a schematic diagram of the structure of the sliding belt conveyor assembly of the present invention; The attached diagram is labeled as follows: 1 is the conveyor, 2 is the first track, 3 is the first frame, 31 is the lifting unit, 311 is the baffle, 32 is the sliding unit, 4 is the second frame, 41 is the hinge seat, 42 is the mounting seat, 43 is the guide wheel, 5 is the second drive device, 51 is the drive motor, 52 is the reducer, 53 is the rope drum, 54 is the wire rope, 55 is the pulley, 56 is the fall arrestor, 6 is the second track, 7 is the bag-laying device, 71 is the telescopic arm, 72 is the lower bag hopper, 8 is the unloading device, 81 is the guide plate, 82 is the inclined chute, 83 is the horizontal belt conveyor, 831 is the supporting base plate, 832 is the roller, 84 is the inclined belt conveyor, 841 is the bag-blocking plate, 9 is the material distribution device, 91 is the conveyor line, 92 is the sliding bag plate, 93 is the third track, 94 is the push plate, and 95 is the fifth drive mechanism. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-6 As shown, this embodiment provides an automatic loading machine for transferring material bags on a conveyor 1 to a transport vehicle. It includes a first track 2 arranged parallel to the conveyor 1, the first track 2 including two track beams, and the conveyor 1 is arranged between the two guide rails. The conveyor 1 is a horizontal conveyor belt.

[0024] like Figure 2 As shown, a first frame 3 is slidably suspended on the first track 2. The first frame 3 is driven by a first driving device and moves laterally along the first track 2. It should be noted that the horizontal, vertical and longitudinal directions referred to in this invention are perpendicular to each other and can be understood as the X-axis, Y-axis and Z-axis in the coordinate system. The first frame 3 includes a lifting part 31 and a sliding part 32. Both the lifting part 31 and the sliding part 32 are rectangular frame structures, and the lifting part 31 and the sliding part 32 are fixed together by a connecting rod.

[0025] like Figure 3 As shown, the top of the lifting part 31 and the sliding part 32 are provided with a moving wheel assembly that matches the first track 2. The moving wheel assembly includes a driving wheel and a driven wheel. The driving wheel and the driven wheel are mounted on the horizontal plane on both sides of the track beam through wheel seats and hangers. The first driving device controls the first frame 3 by driving the driving wheel. Specifically, the top of the lifting part 31 is provided with two driving wheels and two driven wheels; the top of the sliding part 32 is provided with four driven wheels.

[0026] A second frame 4 is slidably disposed within the first frame 3. The second frame 4 is driven by the second driving device 5 and moves vertically relative to the first frame 3. The second frame 4 is a rectangular frame structure. The size of the second frame 4 is slightly smaller than the size of the lifting part 31. The second frame 4 and the lifting part 31 are nested.

[0027] like Figure 4 As shown, the outer corner of the second frame 4 is provided with a lifting guide wheel assembly that rolls with the inner sidewall of the lifting part 31. The lifting guide wheel assembly includes a mounting base 42 and guide wheels 43 disposed on the mounting base 42. The mounting base 42 is L-shaped. The first side of the mounting base 42 is fixed to the outer side of the corner of the second frame 4. At least two guide wheels 43 are arranged at intervals along the vertical direction on the second side of the mounting base 42. Two sets of mounting bases 42 are symmetrically arranged at each corner of the second frame 4. The guide wheels 43 on the two sets of mounting bases 42 at each corner are perpendicular to each other. The four guide wheels 43 at the same corner clamp the column of the lifting part 31 and roll with the column of the lifting part 31.

[0028] The lifting part 31 is provided with a baffle 311 on the inner side of its bottom. The baffle 311 is located on the downward path of the lifting guide wheel assembly and restricts the maximum displacement of the second frame 4. Specifically, the lifting part 31 is provided with baffles 311 at each of its four corners.

[0029] like Figure 5 As shown, a second track 6 is provided within the second frame 4, and a bag-laying device 7 is slidably arranged on the second track 6. The bag-laying device 7 is driven by a third driving device and moves longitudinally along the second track 6. Specifically, the second track 6 includes two parallel rack guides, and a mounting seat is provided on the rack guides. The mounting seat is provided with a gear that meshes with the rack, a third driving device that drives the gear to rotate, and the bag-laying device 7 fixed on the mounting seat. In this embodiment, a total of two mounting seats and two bag-laying devices are provided on the second track 6, and the two bag-laying devices are driven by their respective third driving devices.

[0030] The bag-dispensing device 7 includes a telescopic arm 71, a lower bag hopper 72 disposed at the movable end of the telescopic arm 71, and a fourth driving device for driving the lower bag hopper 72 to move vertically. The telescopic arm 71 includes a nested outer cylinder and an inner cylinder. The outer cylinder is fixed on a mounting base, and the bottom end of the inner cylinder is connected to the lower bag hopper 72. The fourth driving device drives the inner cylinder to slide relative to the outer cylinder. The lower bag hopper 72 is used to receive the bags delivered by the conveyor line 91 and to buffer the bags on the conveyor line 91. The lower bag hopper 72 includes a hopper body that can be relatively closed to form a bag-dispensing cavity and can be relatively opened to realize the bag-loading operation. The lower bag hopper 72 can be referred to as the bag-dispensing hopper in a loading machine disclosed in authorized publication number CN209259190U, and the specific structure will not be described in detail here.

[0031] A feeding device 8 is provided on the first frame 3 and / or the second frame 4. The feeding end of the feeding device 8 receives the conveying surface of the conveyor 1, intercepts the material bag on the conveyor 1, and transfers it to the lower bag hopper 72.

[0032] The feeding device 8 includes a guide plate 81, an inclined chute 82, and a sliding conveyor assembly arranged sequentially. The guide plate 81 is fixed to the first frame 3 and has a gap between it and the conveying surface of the conveyor 1. The guide plate 81 is arc-shaped facing the receiving surface of the material bag. One end of the guide plate 81 is fixed to the sliding part 32 of the first frame 3 by a connecting column. One end of the inclined chute 82 receives the discharge end of the guide plate 81, and the other end connects to the inlet end of the sliding conveyor assembly. In this embodiment, the inclined chute 82 is fixed to the sliding part 32 of the first frame 3. The sliding conveyor assembly is slidably connected to the first frame 3 and rotatably connected to the second frame 4. When the second frame 4 moves downward, it drives the sliding conveyor assembly to slide relative to the first frame 3.

[0033] Specifically, the sliding conveyor assembly includes a horizontal conveyor 83 and at least one inclined conveyor 84. The bottom of the horizontal conveyor 83 is provided with a translation component, which includes a support base plate 831 fixed to the bottom of the horizontal conveyor 83 and rollers 832 disposed on both sides of the support base plate 831. A groove matching the rollers 832 is formed on the first frame 3. The first frame 3 has two parallel pressure rods arranged vertically, with the gap between the two pressure rods forming the groove. One end of the inclined conveyor 84 is hinged to the horizontal conveyor 83 via a hinge shaft, and the other end is hinged to the second frame 4 via a hinge shaft. The second frame 4 is provided with a hinge seat 41 matching the hinge shaft. Figure 4 The hinge seat 41 is located on the bottom front side of the second frame 4, where the front side refers to the direction of the second frame 4 toward the inclined belt conveyor 84. In one possible implementation, the hinge seat 41 is fixed to the frame of the conveyor line 91 by bolts.

[0034] As another possible implementation not shown in the figure, the sliding belt conveyor assembly is fixed on the first frame 3. The feed inlet of the sliding belt conveyor assembly receives the inclined chute 82, and the discharge end of the sliding belt conveyor assembly is suspended above the second frame. A horizontal conveyor belt is set inside the second frame, and the material bag falls from the sliding belt conveyor into the conveyor belt and is then transported to the lower bag hopper 72.

[0035] The inclined belt conveyor 84 has a multi-segment structure, with multiple segments connected end-to-end and driven by independent drive motors to adjust the bag drop interval. A bag-blocking plate 841 is movably installed on the inclined belt conveyor 84, driven by a drive mechanism to block bag transport. When the bottom end of the bag-blocking plate 841 is on the surface of the inclined belt conveyor 84, it blocks bag transport; when the bottom end of the bag-blocking plate 841 is away from the surface of the inclined belt conveyor 84, the bags are transported normally, preventing bags from falling when the inclined belt conveyor 84 stops.

[0036] Specifically, a rotating shaft is fixed to the upper edge of the bale blocking plate 841. The two ends of the rotating shaft are rotatably mounted on the frame of the inclined belt conveyor 84 via support seats. One end of the rotating shaft extends out of the support seat. The driving mechanism is a cylinder. The telescopic end of the cylinder is rotatably connected to a swing rod. The other end of the swing rod is fixed to the rotating shaft. When the piston extends, it drives the rotating shaft to rotate, thereby causing the bale blocking plate 841 to block the bale conveying channel. When the piston retracts, it drives the rotating shaft to rotate in the opposite direction, thereby causing the bale blocking plate 841 to rotate out of the bale conveying channel, so that the bale can be conveyed normally.

[0037] A material distribution device 9 is provided between the feeding device 8 and the bag-laying device 7. The material distribution device 9 includes multiple conveyor lines 91 arranged on the second frame 4 and a material transfer mechanism that switches the bags between the multiple conveyor lines 91. The inlet end of at least one of the conveyor lines 91 receives the outlet end of the feeding device 8. The outlet end of the conveyor line 91 corresponds one-to-one with the bag-laying hopper 72. The material distribution device 9 has one inlet and multiple outlets to divert the bags, which helps to realize multi-hopper feeding and improve loading efficiency.

[0038] The conveyor line 91 includes a high-level conveyor line and a low-level conveyor line, with a sliding plate 92 connecting the high-level and low-level conveyor lines. The material transfer mechanism includes a third track 93 spanning above the multiple conveyor lines 91, a push plate 94 slidably mounted on the third track 93, and a fifth drive mechanism 95 that drives the push plate 94 to reciprocate linearly along the third track 93, pushing the material bag from the high-level conveyor line into the low-level conveyor line. The first track 2 is perpendicular to the second track 6, and the second track 6 is parallel to the third track 93. The third track 93 consists of two parallel I-beam guide rails, which are fixed to the second frame 4. The fifth drive mechanism 95 is a drive belt located between the two I-beam guide rails. The push plate 94 includes a connecting part and a pushing part from top to bottom. The drive belt is fixedly connected to the middle of the connecting part, and the left and right sides of the connecting part are slidably connected to the two guide rails respectively. The pushing part is a rectangular plate structure with a gap between the bottom of the pushing part and the conveying surface of the conveyor line 91. The length direction of the pushing part is parallel to the conveying direction of the conveyor line 91.

[0039] In this embodiment, a high-level conveyor line and two low-level conveyor lines are provided. The high-level conveyor line is arranged parallel to the two low-level conveyor lines. A baffle is provided at the end of the high-level conveyor line, and both ends of the baffle are fixed to the frame. There is a gap between the bottom end of the baffle and the conveying surface of the high-level conveyor line. The feed end of the high-level conveyor line receives the discharge end of the inclined belt conveyor 84. The material bag enters the middle conveyor line 91 from the inclined belt conveyor 84. The pusher plate pushes the material bag on the middle high-level conveyor line to the two low-level conveyor lines on both sides, forming two discharge channels.

[0040] The first, third, and fourth drive devices are drive motors. The second drive device 5 is a wire rope assembly.

[0041] The second driving device 5 includes a drive motor 51, a reducer 52, a rope drum 53, and a wire rope 54. The reducer 52 is mounted on the first frame 3. The input end of the reducer 52 is connected to the drive motor 51, and the output end is connected to the rope drum 53. The reducer 52 is a WPDA type worm gear reducer. The reducer 52 has one input shaft and two output shafts located on the same straight line. The input shaft and the output shaft are at 90°. Several pulleys 55 are provided on the first frame 3 and the second frame 4. One end of the wire rope 54 is wound around the rope drum 53, and the other end passes around the pulley 55 and is fixed to the lifting point of the first frame 3. There are a total of two lifting points on the first frame 3.

[0042] To improve stability, two sets of rope drums 53, wire ropes 54, and pulleys 55 are symmetrically arranged on both sides of the reducer 52. A fall arrester 56 is installed between the first frame 3 and the second frame 4. The two output shafts of the reducer 52 are each connected to the central shaft of the two rope drums 53 through a coupling. The first frame 3 is provided with 6 fixed pulleys, and the second frame 4 is provided with 4 fixed pulleys. The wire rope 54 passes through the pulleys 55 on the first frame 3 and the second frame 4 in sequence, and the final end is fixed to the first frame 3.

[0043] The working process of this invention: The first frame 3 drives the entire device to move along the first track 2 to the transport vehicle. The second frame 4 moves down, lowering the height of the lower bag bucket 72 relative to the transport vehicle. During this process, the discharge end of the feeding device 8 moves down along with the second frame 4. After being lowered to a suitable height, the conveyor 1 is turned on. The material on the conveyor 1 is guided by the guide plate 81 and slides from the inclined chute 82 into the sliding belt conveyor assembly, and then reaches the material distribution device 9. The push plate 94 pushes the material on the middle high-level conveyor line to the low-level conveyor lines on both sides, thereby realizing the effect of converting one transport channel into two transport channels. The material bags on the conveyor line 91 slide down and enter the lower bag bucket 72. The bag-releasing device 7 drives the lower bag bucket 72 to move longitudinally, adjusting the bag-releasing position. The lower bag bucket 72 drives the material bags down. After being lowered to a suitable position, the bag bucket opens, and the material bags enter the bucket of the transport vehicle from the lower bag bucket 72.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included within the scope of the present invention.

Claims

1. An automatic loading machine for transferring bales from a conveyor (1) to a transport vehicle, comprising a first track (2) arranged parallel to the conveyor (1), characterized in that, A first frame (3) is slidably suspended on the first track (2), and the first frame (3) is driven by a first driving device to move laterally along the first track (2); A second frame (4) is slidably disposed within the first frame (3), and the second frame (4) is driven by the second driving device (5) and moves vertically relative to the first frame (3); The second frame (4) is provided with a second track (6), and a bag-laying device (7) is slidably arranged on the second track (6). The bag-laying device (7) is driven by a third drive device and moves longitudinally along the second track (6). The bag-laying device (7) includes a telescopic arm (71), a lower bag bucket (72) arranged at the movable end of the telescopic arm (71), and a fourth drive device that drives the lower bag bucket (72) to move vertically. A feeding device (8) is provided on the first frame (3) and / or the second frame (4). The feeding end of the feeding device (8) receives the conveying surface of the conveyor (1), intercepts the material bag on the conveyor (1), and transfers it to the lower bag hopper (72).

2. The automatic loading machine according to claim 1, characterized in that, The feeding device (8) includes a guide plate (81), an inclined chute (82) and a sliding belt conveyor assembly arranged in sequence. The guide plate (81) is fixed on the first frame (3) and has a gap with the conveying surface of the conveyor (1). The guide plate (81) is arc-shaped facing the receiving surface of the material bag. One end of the inclined chute (82) receives the discharge end of the guide plate (81) and the other end is connected to the feed end of the sliding belt conveyor assembly. The sliding belt conveyor assembly is slidably connected to the first frame (3) and rotatably connected to the second frame (4).

3. An automatic loading machine according to claim 2, characterized in that, The sliding conveyor assembly includes a horizontal conveyor (83) and at least one inclined conveyor (84). The bottom of the horizontal conveyor (83) is provided with a translation component. The translation component includes a support base plate (831) fixed to the bottom of the horizontal conveyor (83) and rollers (832) provided on both sides of the support base plate (831). The first frame (3) is provided with a sliding groove that matches the rollers (832). One end of the inclined conveyor (84) is hinged to the horizontal conveyor (83) through a hinge shaft, and the other end is hinged to the second frame (4) through a hinge shaft. The second frame (4) is provided with a hinge seat (41) that matches the hinge shaft.

4. An automatic loading machine according to claim 3, characterized in that, The inclined belt conveyor (84) has a multi-segment structure, with multiple segments of the inclined belt conveyor (84) connected end to end and driven by independent drive motors; a baffle plate (841) is movably installed on the inclined belt conveyor (84), and the baffle plate (841) is driven by a drive mechanism and used to block the conveying of material bags.

5. An automatic loading machine according to claim 1, characterized in that, A material distribution device (9) is provided between the feeding device (8) and the bag-laying device (7). The material distribution device (9) includes multiple conveyor lines (91) set on the second frame (4) and a material transfer mechanism that switches the bag between the multiple conveyor lines (91). The feeding end of at least one of the conveyor lines (91) receives the discharging end of the feeding device (8). The discharging end of the conveyor line (91) corresponds one-to-one with the bag-laying hopper (72).

6. An automatic loading machine according to claim 5, characterized in that, The conveyor line (91) includes a high-level conveyor line and a low-level conveyor line, with a sliding plate (92) connecting the high-level conveyor line and the low-level conveyor line. The material transfer mechanism includes a third track (93) spanning above the multiple conveyor lines (91), a push plate (94) slidably disposed on the third track (93), and a fifth drive mechanism (95) that drives the push plate (94) to reciprocate linearly along the third track (93) and pushes the material bag from the high-level conveyor line into the low-level conveyor line.

7. An automatic loading machine according to claim 1, characterized in that, The first frame (3) includes a lifting part (31). The lifting part (31) and the second frame (4) are both rectangular frame structures. The top of the lifting part (31) is provided with a moving wheel assembly that matches the first track (2). The outer corner of the second frame (4) is provided with a lifting guide wheel assembly that rolls with the inner sidewall of the lifting part (31). The bottom inner side of the lifting part (31) is provided with a baffle (311). The baffle (311) is located on the downward path of the lifting guide wheel assembly and restricts the maximum displacement of the second frame (4).

8. An automatic loading machine according to claim 7, characterized in that, The lifting guide wheel assembly includes a mounting base (42) and guide wheels (43) disposed on the mounting base (42). The mounting base (42) is L-shaped. The first side of the mounting base (42) is fixed to the outer corner of the second frame (4). The second side of the mounting base (42) is provided with at least two guide wheels (43) spaced apart in the vertical direction. Two sets of mounting bases (42) are symmetrically arranged at each corner of the second frame (4).

9. An automatic loading machine according to claim 1, characterized in that, The second driving device (5) includes a drive motor (51), a reducer (52), a rope drum (53) and a wire rope (54). The reducer (52) is mounted on the first frame (3). The input end of the reducer (52) is connected to the drive motor (51) and the output end is connected to the rope drum (53). Several pulleys (55) are mounted on the first frame (3) and the second frame (4). One end of the wire rope (54) is wound around the rope drum (53) and the other end passes around the pulley (55) and is fixed at the suspension point of the first frame (3).

10. An automatic loading machine according to claim 9, characterized in that, Two sets of rope drums (53), wire ropes (54) and pulley groups are symmetrically arranged on both sides of the reducer (52), and a fall arrestor (56) is provided between the first frame (3) and the second frame (4).

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