A de-palletizer for palletized cargo in a cargo trailer

Abstract

The utility model discloses a kind of unloading machines for freight carriage bagged goods unloading, including the movable device that can ground travel, extraction release device installed in movable device front side, further including being equipped in movable device rear side's snatch release device, on movable device below extraction release device and snatch release device, transmission device is further equipped, the extraction release device can release after extraction bagged goods on transmission device, the transmission device can transport bagged goods from front to back, the snatch release device can be stacked in specified position after snatch after bagged goods from transmission device rear end. Its advantage lies in: extraction release device can extract bagged goods nearby after extracting bagged goods nearby, unloading efficiency is multiplied, and simple operation.

Description

Technical Field

[0001] This utility model relates to an unloading machine for unloading bagged goods in freight cars, belonging to the field of bagged goods unloading technology. Background Technology

[0002] With rapid societal development, railway, port, and highway systems are experiencing heavy transportation workloads, leading to the emergence of various large-scale logistics enterprises. This places higher demands on cargo transportation and unloading efficiency, making mechanized unloading the mainstream method. However, in some railway stations, the unloading and packing of bulk bagged goods such as grain, fertilizer, and cement still faces challenges. Bagged goods constitute a large proportion of railway transportation, and currently, manual handling and unloading are prevalent. This manual unloading process is labor-intensive, inefficient, and results in long periods of time spent on freight cars, impacting freight car turnaround. Furthermore, high labor costs place a heavy burden on labor-intensive enterprises, thus affecting the overall efficiency of railway transportation.

[0003] To address the aforementioned issues, the industry has been continuously researching mechanized unloading. Patent application number 202311232091.7 discloses a bagged cargo unloading machine developed by our company. Its basic structure consists of a track beam mounted on a movable main unit, with one end positioned above the cargo extraction area (within the freight car compartment) and the other end above the cargo stacking platform. A bagged cargo extraction and release device travels along the track beam. In application, the extraction and release device extracts the bagged cargo from the freight car compartment and then, holding the bagged cargo, slides it along the track beam to the cargo stacking platform. The platform mentioned here generally refers to inbound transfer tools such as forklifts, where the bagged cargo stacked on the forklift is transferred to a nearby warehouse.

[0004] After the aforementioned unloading machine was launched on the market, customer feedback indicated that although it significantly improved work efficiency compared to manual handling, it still could not meet the demand for rapid unloading of large volumes of goods, and the market expects it to have better performance. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to further improve the unloading efficiency of the unloading machine.

[0006] To address the above problems, the technical solution proposed by this utility model is as follows: An unloading machine for unloading bagged goods in freight vehicles includes a movable device capable of traveling on the ground, an extraction and release device installed on the front side of the movable device, and a gripping and release device located on the rear side of the movable device. A conveying device is also provided on the movable device below the extraction and release device and the gripping and release device. The extraction and release device can extract the bagged goods and release them onto the conveying device. The conveying device can transport the bagged goods from front to back. The gripping and release device can grab the bagged goods from the rear end of the conveying device and stack them at a designated location.

[0007] The movable device includes a main assembly frame, and the extraction and release device, the gripping and release device, and the transmission device are mounted on the main assembly frame and can slide up and down on the main assembly frame.

[0008] The extraction and release device includes a mounting frame, and the transmission device includes a transmission frame. A spacing adjustment mechanism is provided between the mounting frame and the transmission frame to adjust the distance between them.

[0009] A connector is provided between the mounting frame and the transmission frame, and a lifting device is provided on the main assembly frame for synchronously lifting the mounting frame and the transmission frame.

[0010] The extraction and release device includes a negative pressure suction cup mounted on a mounting frame, a negative pressure pump powered by a negative pressure drive motor, and a negative pressure tube connecting the negative pressure pump and the negative pressure suction cup. The negative pressure tube is an elastic tube.

[0011] The mounting frame includes a horizontal guide frame, a longitudinal guide frame that is mounted on the horizontal guide frame at its rear end and can move laterally on the horizontal guide frame, and a longitudinal slide block that is mounted on the longitudinal guide frame and can slide back and forth on the longitudinal guide frame. The negative pressure suction cup is mounted on the longitudinal slide block. The horizontal guide frame is a rectangular frame with a front beam and a rear beam. There are two rearwardly extending mounting beams on the rear side of the rear beam, and a slider is provided in front of and behind the mounting beam and is restricted to the sliding rail. A transverse rack is provided on the front side of the rear beam, and a transverse drive gear and a transverse drive motor that drive the transverse drive gear are provided at the rear end of the longitudinal guide frame. A longitudinal guide frame is provided on one side with a longitudinal moving rack, and a longitudinal drive gear and a longitudinal drive motor that drive the longitudinal drive gear are provided on the longitudinal slide.

[0012] The transmission frame is equipped with several transmission rollers driven by three motors, and there are gaps between the transmission rollers.

[0013] The lifting device includes a winch and a sling. A lifting frame is provided on the transmission frame, and the sling is located between the lifting frame and the winch.

[0014] The gripping and releasing device includes a second mounting frame and a gripper. The second mounting frame includes a second horizontal guide frame, a second longitudinal guide frame mounted on the second horizontal guide frame and capable of moving laterally on the second horizontal guide frame, and a second longitudinal slide mounted on the second longitudinal guide frame and capable of sliding back and forth on the second longitudinal guide frame. The gripper is mounted on the second longitudinal slide. The second horizontal guide frame is a rectangular frame with a second front beam and a second rear beam; There are two forward-extending mounting beams on the front side of the front beam two, and a slider two that travels and is restricted on the sliding rail two at the front and rear of the mounting beam two. A transverse rack is provided on the front side of the rear beam 2, and a transverse drive gear 2 and a transverse drive motor 2 that mesh with the transverse rack 2 are provided at the front end of the longitudinal guide frame 2. A longitudinal guide frame 2 is provided on one side, and a longitudinal drive gear 2 that meshes with the longitudinal guide rack 2 and a longitudinal drive motor 2 that drives the longitudinal drive gear 2 are provided on the longitudinal slide 2.

[0015] The gripper includes two grippers, left and right, that can clamp together facing each other and separate in opposite directions. When clamped, the left gripper has several fingers that hang down and then bend horizontally to the left, and the right gripper has several fingers that hang down and then bend horizontally to the left. The fingers of the left and right grippers form a rectangular holding space that is open from front to back to accommodate bagged goods. The fingers of the left and right grippers are symmetrically arranged, and there is a set distance between adjacent fingers. Beneficial effects

[0016] The extraction and release device can extract and release bagged goods nearby without moving the device over long distances. The extracted bagged goods are then transported and stacked on a designated platform by the conveying device and the gripping and release device. Compared with the existing technology where the extraction and release device extracts the bagged goods separately and then transports them over long distances before releasing them, the unloading efficiency is increased several times and the operation is simple. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the unloading machine; Figure 2 This is a three-dimensional schematic diagram of the unloading machine, with the top plate of the unloading machine removed. Figure 3 This is a three-dimensional schematic diagram of the right side of the extraction and release device and the transmission device; Figure 4 This is a three-dimensional schematic diagram of the left side of the extraction and release device and the transmission device; Figure 5 A three-dimensional schematic diagram of the grasping and releasing device; Figure 6 for Figure 5 A partial schematic diagram; Figure 7 for Figure 6 A partial schematic diagram.

[0018] In the diagram: 100. Movable device; 101. Assembly frame; 1. Extraction and release device; 11. Mounting frame one; 111. Horizontal guide frame one; 1111. Horizontal rack one; 112. Longitudinal guide frame one; 1121. Horizontal drive gear one; 1122. Horizontal drive motor one; 1123. Longitudinal rack one; 113. Longitudinal slide one; 1131. Longitudinal drive gear one; 1132. Longitudinal drive motor one; 114. Mounting beam one; 1141. Slider one; 12. Winch one; 13. Hoisting cable one; 14. Negative pressure suction cup; 141. Negative pressure drive motor; 142. Negative pressure pump; 143. Negative pressure pipe; 15. Sliding rail one; 2. Grabbing and release device; 21. Mounting frame two; 211. Horizontal guide frame 2. 2111. Transverse rack 2; 212. Longitudinal guide frame 2; 2121. Transverse drive gear 2; 2122. Transverse drive motor 2; 2123. Longitudinal rack 2; 213. Longitudinal slide 2; 2131. Longitudinal drive gear 2; 2132. Longitudinal drive motor 2; 214. Mounting beam 2; 2141. Slider 2; 22. Winch 2; 23. Hoisting cable 2; 24. Turntable; 241. Steering motor; 242. Steering gear; 25. Sliding rail 2; 26. Gripper; 261. Hand gripper; 262. Grip finger; 263. Holding space; 3. Transmission device; 31. Transmission frame; 32. Transmission roller; 321. Motor 3; 33. Slider 3; 34. Lifting frame 1; 4. Spacing adjustment cylinder. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 , 2As shown, an unloading machine for unloading bagged goods from freight truck compartments includes a movable device 100 capable of traveling on the ground and an extraction and release device 1 installed at the front of the movable device 100. The machine is characterized by further including a gripping and release device 2 located at the rear of the movable device 100. A conveying device 3 is also provided on the movable device 100 below the extraction and release device 1 and the gripping and release device 2. The extraction and release device 1 extracts the bagged goods and releases them onto the conveying device 3. The conveying device 3 transports the bagged goods from front to back. The gripping and release device 2 grips the bagged goods from the rear of the conveying device 3 and stacks them at a designated location. In application, the extraction and release device 1 continuously extracts and releases bagged goods from the truck compartment onto the conveying device 3, which continuously transports the bagged goods backward. At the rear, the gripping and release device 2 continuously grips the bagged goods from the rear of the conveying device 3 and stacks them onto a transfer and loading platform (such as a forklift). In this way, the extraction and release device 1 can extract and release bagged goods nearby without moving a long distance. The extracted bagged goods are then handed over to the conveying device 3 and the grabbing and release device 2 to transport and stack them on the designated platform. Compared with the existing technology where the extraction and release device 1 extracts the bagged goods separately and then transports them a long distance to the rear for release, the unloading efficiency is increased many times.

[0020] The movable device 100 includes a main frame 101, on which an extraction and release device 1, a gripping and release device 2, and a transmission device 3 are mounted. The extraction and release device 1, the gripping and release device 2, and the transmission device 3 can slide up and down on the main frame 101. The main frame 101 is provided with a vertical sliding rail 15 for the extraction and release device 1 and the transmission device 3 to slide up and down, and a vertical sliding rail 25 for the gripping and release device 2 to slide up and down.

[0021] like Figure 2 , 3 As shown in Figure 4, the extraction and release device 1 includes a mounting frame 11, and the transmission device 3 includes a transmission frame 31. A spacing adjustment mechanism for adjusting the distance between the mounting frame 11 and the transmission frame 31 is provided.

[0022] Preferably, the spacing adjustment mechanism is a spacing adjustment cylinder 4. In application, the spacing between the mounting frame 11 and the transmission frame 31 can be adjusted by extending or retracting the push rod of the spacing adjustment cylinder 4. The spacing adjustment cylinder 4 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0023] Optionally, the spacing adjustment mechanism is a gear and rack drive structure (a conventional means, not shown in the drawing). In application, the gear and rack drive structure causes the mounting frame 11 or the transmission frame 31 to slide up and down individually to adjust the spacing between the mounting frame 11 and the transmission frame 31.

[0024] A connector is provided between the mounting frame 11 and the transmission frame 31, and a lifting device is provided on the main assembly frame 101 for synchronously lifting the mounting frame 11 and the transmission frame 31.

[0025] Preferably, the connecting component is still the spacing adjustment cylinder 4 as described above. While satisfying the spacing adjustment between the mounting frame 11 and the transmission frame 31, when the spacing adjustment cylinder 4 is not working, the spacing adjustment cylinder 4 is a rigid connecting component between the mounting frame 11 and the transmission frame 31, which can make the mounting frame 11 and the transmission frame 31 slide up and down synchronously under the action of the lifting device.

[0026] Optionally, the connecting element is a common carrier between the mounting frame 11 and the transmission frame 31. This carrier can slide up and down on the main assembly frame 101. The mounting frame 11 and the transmission frame 31 are mounted on this carrier and can move up and down on the carrier to adjust the distance between them. When the mounting frame 11 and the transmission frame 31 are stationary on the carrier, the carrier becomes a rigid connecting element between them, and can be used by the lifting device to make the mounting frame 11 and the transmission frame 31 slide up and down synchronously on the main assembly frame 101 together with the carrier.

[0027] Preferably, the lifting device includes a winch 12 and a sling 13, and a lifting frame 34 is provided on the transmission frame 31, with the sling 13 located between the lifting frame 34 and the winch 12.

[0028] Optionally, the lifting device can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0029] Optionally, the lifting device can be a rack and pinion drive.

[0030] The extraction and release device 1 includes a negative pressure suction cup 14 mounted on a mounting frame 11, a negative pressure pump 142 powered by a negative pressure drive motor 141, and a negative pressure pipe 143 connecting the negative pressure pump 142 and the negative pressure suction cup 14. The negative pressure pipe 143 is an elastic pipe. In application, the negative pressure suction cup 14 sucks up the airtight packaging bag of the bagged goods, lifting the bagged goods. When releasing, the negative pressure is released, and the bagged goods can be put down.

[0031] Mounting frame 11 includes a horizontal guide frame 111, a longitudinal guide frame 112 mounted on the horizontal guide frame 111 at its rear end and capable of moving laterally on the horizontal guide frame 111, and a longitudinal slide block 113 mounted on the longitudinal guide frame 112 and capable of sliding back and forth on the longitudinal guide frame 112. A negative pressure suction cup 14 is mounted on the longitudinal slide block 113. The horizontal guide frame 111 is a rectangular frame with a front side beam and a rear side beam. There are two rearwardly extending mounting beams 114 on the rear side of the rear beam 1, and a slider 1141 is provided in front of and behind the mounting beam 114 and travels and is restricted on the sliding rail 15 (the sliding rail 15 has 4 rails arranged in a rectangle). A transverse rack 1111 is provided on the front side of the rear beam 1, and a transverse drive gear 1121 that meshes with the transverse rack 1111 and a transverse drive motor 1122 that drives the transverse drive gear 1121 are provided at the rear end of the longitudinal guide frame 112. A longitudinal guide frame 112 is provided on one side with a longitudinal transfer rack 1123, and a longitudinal drive gear 1131 that meshes with the longitudinal transfer rack 1123 and a longitudinal drive motor 1132 that drives the longitudinal drive gear 1131 are provided on the longitudinal slide block 113.

[0032] When in use, starting the horizontal drive motor 1122 allows the negative pressure suction cup 14 to move left and right, starting the vertical drive motor 1132 allows the negative pressure suction cup 14 to move back and forth, and starting the lifting device allows the negative pressure suction cup 14 to move up and down to adapt to changes in the position of bagged goods.

[0033] The transmission frame 31 is provided with several transmission rollers 32 driven by motor 321, and there are gaps between the transmission rollers 32; on both sides of the middle part of the transmission frame 31, there are sliders 33 that travel on the sliding rail 15.

[0034] like Figure 2 , 5 As shown in Figures 6 and 7, the gripping and releasing device 2 includes a second mounting frame 21 and a gripper 26. The second mounting frame 21 includes a second horizontal guide frame 211, a second longitudinal guide frame 212 mounted on the second horizontal guide frame 211 and capable of moving laterally on the second horizontal guide frame 211, and a second longitudinal slide block 213 mounted on the second longitudinal guide frame 212 and capable of sliding back and forth on the second longitudinal guide frame 212. The gripper 26 is mounted on the second longitudinal slide block 213. The transverse guide frame 211 is a rectangular frame with a front beam 2 and a rear beam 2; There are two forward-extending mounting beams 214 on the front side of the front beam 2. There is a slider 2141 on the front and back of the mounting beam 214, which travels and is restricted on the sliding rail 25 (there are four sliding rails 25, arranged in a rectangle). A transverse rack 2111 is provided on the front side of the rear beam 2, and a transverse drive gear 2121 that meshes with the transverse rack 2111 and a transverse drive motor 2122 that drives the transverse drive gear 2121 are provided at the front end of the longitudinal guide frame 212. A longitudinal guide frame 212 is provided on one side of a longitudinal transfer rack 2123, and a longitudinal drive gear 2131 that meshes with the longitudinal transfer rack 2123 and a longitudinal drive motor 2132 that drives the longitudinal drive gear 2131 are provided on the longitudinal slide 213.

[0035] The assembly frame 101 is equipped with a lifting device 2 that allows the mounting frame 21 to slide up and down; Preferably, the lifting device 2 includes a winch 22 and a sling 23, with the sling 23 provided between the mounting frame 21 and the winch 22.

[0036] Optionally, the second lifting device can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0037] Optionally, the second lifting device is a gear and rack drive device.

[0038] When in use, starting the second horizontal drive motor 2122 can move the gripper 26 left and right, starting the second vertical drive motor 2132 can move the gripper 26 back and forth, and starting the second lifting device can move the gripper 26 up and down to adapt to changes in the stacking position of bagged goods.

[0039] The gripper 26 includes two grippers 261 that can clamp together facing each other and separate in opposite directions. When clamped, the left gripper 261 has several fingers 262 that hang down and then bend horizontally to the left, and the right gripper 261 has several fingers 262 that hang down and then bend horizontally to the left. The fingers 262 of the left gripper 261 and the fingers 262 of the right gripper 261 form a rectangular holding space 263 that is open from front to back to accommodate bagged goods. The fingers 262 of the left gripper 261 and the fingers 262 of the right gripper 261 are symmetrically arranged, and there is a set distance between adjacent fingers 262.

[0040] In application, the gripping fingers 262 of the clamping claws 26 can sink down from the interval of the transmission roller 32, so that the bagged goods transmitted from the front to the rear of the transmission frame 31 are directly pushed into the holding space 263. Then the claws 26 are lifted up and transported to the top of the stacked goods. Then the grippers on the left and right sides are separated to release the gripped bagged goods.

[0041] A turntable 24 driven by a steering motor 241 through a steering gear 242 is provided between the gripper 26 and the longitudinal slide 213. The turntable 24 is mounted on the longitudinal slide 213, and the gripper 26 is mounted on the turntable 24. In use, the rotation of the turntable can adjust the gripper 26 and its horizontal direction of gripping bagged goods to adapt to the stacking direction of bagged goods.

[0042] The above embodiments are only used to describe the present invention more clearly, and should not be regarded as limiting the scope of protection covered by the present invention. Any equivalent modifications should be regarded as falling within the scope of protection covered by the present invention.

Claims

1. An unloading machine for unloading bagged goods from freight cars, comprising a movable device (100) capable of traveling on the ground and a retrieval and release device (1) installed on the front side of the movable device (100), characterized in that: It also includes a gripping and releasing device (2) located at the rear of the movable device (100). On the movable device (100) below the extraction and releasing device (1) and the gripping and releasing device (2), there is also a conveying device (3). The extraction and releasing device (1) can extract the bagged goods and release them onto the conveying device (3). The conveying device (3) can transport the bagged goods from front to back. The gripping and releasing device (2) can grab the bagged goods from the rear end of the conveying device (3) and stack them at a designated location.

2. The unloading machine for unloading bagged goods in freight cars according to claim 1, characterized in that: The movable device (100) includes a main frame (101), the extraction and release device (1), the gripping and release device (2) and the transmission device (3) are mounted on the main frame (101) and can slide up and down on the main frame (101).

3. The unloading machine for unloading bagged goods in freight cars according to claim 2, characterized in that: The extraction and release device (1) includes a mounting frame (11), and the transmission device (3) includes a transmission frame (31). A spacing adjustment mechanism for adjusting the distance between the mounting frame (11) and the transmission frame (31) is provided.

4. The unloading machine for unloading bagged goods in freight cars according to claim 3, characterized in that: A connector is provided between the mounting frame (11) and the transmission frame (31), and a lifting device is provided on the main assembly frame (101) for synchronously lifting the mounting frame (11) and the transmission frame (31).

5. The unloading machine for unloading bagged goods in freight cars according to claim 4, characterized in that: The extraction and release device (1) includes a negative pressure suction cup (14) mounted on a mounting frame (11), a negative pressure pump (142) powered by a negative pressure drive motor (141), and a negative pressure pipe (143) connecting the negative pressure pump (142) and the negative pressure suction cup (14). The negative pressure pipe (143) is an elastic pipe.

6. The unloading machine for unloading bagged goods in freight cars according to claim 5, characterized in that: The mounting frame 1 (11) includes a horizontal guide frame 1 (111), a longitudinal guide frame 1 (112) whose rear end is mounted on the horizontal guide frame 1 (111) and can travel laterally on the horizontal guide frame 1 (111), and a longitudinal slide block 1 (113) mounted on the longitudinal guide frame 1 (112) and can slide back and forth on the longitudinal guide frame 1 (112). The negative pressure suction cup (14) is mounted on the longitudinal slide block 1 (113). The transverse guide frame (111) is a rectangular frame with a front side beam and a rear side beam; There are two rearwardly extending mounting beams (114) on the rear side of the rear beam, and a slider (1141) is provided in front of and behind the mounting beam (114) and travels and is restricted on the sliding rail (15). A transverse rack (1111) is provided on the front side of the rear beam, and a transverse drive gear (1121) that meshes with the transverse rack (1111) and a transverse drive motor (1122) that drives the transverse drive gear (1121) are provided at the rear end of the longitudinal guide frame (112). A longitudinal guide frame (112) is provided with a longitudinal rack (1123) on one side, and a longitudinal drive gear (1131) that meshes with the longitudinal rack (1123) and a longitudinal drive motor (1132) that drives the longitudinal drive gear (1131) are provided on the longitudinal slide (113).

7. The unloading machine for unloading bagged goods in freight cars according to claim 4, characterized in that: The transmission frame (31) is provided with a plurality of transmission rollers (32) driven by motor three (321), and there are gaps between the transmission rollers (32).

8. The unloading machine for unloading bagged goods in freight cars according to claim 4, characterized in that: The lifting device includes a winch (12) and a sling (13). A lifting frame (34) is provided on the transmission frame (31), and the sling (13) is located between the lifting frame (34) and the winch (12).

9. The unloading machine for unloading bagged goods in freight cars according to claim 4, characterized in that: The gripping and releasing device (2) includes a mounting frame two (21) and a gripper (26). The mounting frame two (21) includes a horizontal guide frame two (211), a longitudinal guide frame two (212) mounted on the horizontal guide frame two (211) and capable of moving laterally on the horizontal guide frame two (211), and a longitudinal slide two (213) mounted on the longitudinal guide frame two (212) and capable of sliding back and forth on the longitudinal guide frame two (212). The gripper (26) is mounted on the longitudinal slide two (213). The second horizontal guide frame (211) is a rectangular frame with a second front beam and a second rear beam; There are two forward-extending mounting beams (214) on the front side of the front beam two, and a slider (2141) is provided in front of and behind the mounting beam two (214) and is restricted to the sliding rail two (25). A transverse rack (2111) is provided on the front side of the rear beam 2. A transverse drive gear (2121) that meshes with the transverse rack (2111) and a transverse drive motor (2122) that drives the transverse drive gear (2121) are provided at the front end of the longitudinal guide frame 2 (212). A longitudinal guide frame 2 (212) is provided on one side of a longitudinal rack 2 (2123), and a longitudinal drive gear 2 (2131) that meshes with the longitudinal rack 2 (2123) and a longitudinal drive motor 2 (2132) that drives the longitudinal drive gear 2 (2131) are provided on the longitudinal slide 2 (213).

10. The unloading machine for unloading bagged goods in freight cars according to claim 9, characterized in that: The gripper (26) includes two grippers (261) that can clamp together in opposite directions and separate in opposite directions. When clamped, the left gripper (261) has several fingers (262) that hang down and then bend horizontally to the left. The right gripper (261) has several fingers (262) that hang down and then bend horizontally to the left. The fingers (262) of the left gripper (261) and the fingers (262) of the right gripper (261) form a rectangular holding space (263) that is open from front to back to accommodate bagged goods. The fingers (262) of the left gripper (261) and the fingers (262) of the right gripper (261) are symmetrically arranged, and there is a set distance between adjacent fingers (262).

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