A robotic automatic unpacking device

Abstract

The utility model discloses a kind of robot automatic unpacking device, it is related to automatic unpacking device technical field, and the cooperation of incomplete gear driven by supporting rod, limiting plate, spring and torsional force component brings to the lifting of tool rest, when robot places packaging on tool rest surface and presses downward and cannot break open packaging, it will move downward, incomplete gear is rotated under the drive of the surface driving rack of supporting rod in moving process, while supporting rod follows and moves downward and extrudes spring, when incomplete gear rotates to smooth part and approaches driving rack, lose the restriction of driving rack to supporting rod, while the spring that is extruded releases energy storage and pushes supporting rod upward by limiting plate, driving rack is driven to cut packaging upward, the break of packaging is completed by the force cooperation of the fast movement of driving rack upward and robot pressing downward, avoid the situation that packaging cannot be broken open completely or cannot be broken open.

Description

Technical Field

[0001] This utility model relates to the field of automatic unpacking device technology, and in particular to a robotic automatic unpacking device. Background Technology

[0002] When using bagged materials, the first step is to remove the packaging. Using robots for automatic unpacking can replace the manual process of breaking the bags and feeding the materials. The robot picks up the packaging, moves it to a designated location, and then breaks the bag using an unpacking device. After the bag is broken, the material inside flows out naturally, reducing labor costs and significantly improving operational efficiency.

[0003] After the robot picks up the package, it typically contacts the bottom of the package with the blade inside the unpacking device and presses it down. The pressure, combined with the blade's edge, completes the unpacking process. However, in actual use, the packaging material, contents, blade sharpness, and pressing force all affect the unpacking process. During the unpacking of packages from the same batch, differences in materials, contents, or blade wear may cause some packages to not be completely cut, or even remain uncut at all. Therefore, operators need to constantly observe and intervene manually as needed, affecting the continuity of the overall process. Furthermore, if the package cannot be completely cut, some material may accumulate inside and be discarded along with the packaging, resulting in material waste. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an automatic unpacking device for robots, which solves the problem that packaging is not completely unpacked or cannot be cut by the blade after the robot grabs the packaging and puts it into the unpacking device.

[0005] The technical solution of this utility model is as follows: an automatic unpacking device for robots, including a frame, a material container inside the frame, a knife holder on top of the material container, a slot at the bottom of the knife holder that fits the edge of the material container, a sliding connection between the knife holder and the frame, a support rod passing through the frame at the bottom of the knife holder, two limiting plates fitted on the part of the support rod passing through the frame downwards, wherein the limiting plate at the top is fixedly connected to the support rod, and the limiting plate at the bottom is fixedly connected to the frame, the two limiting plates dividing the part of the support rod passing through the frame into upper and lower parts, wherein an active rack is provided on the side of the upper part of the support rod near the frame, and a spring is fitted on the outer side of the lower part of the support rod, an incomplete gear meshing with the active rack is rotatably connected inside the frame, a torque component is provided at the input end of the incomplete gear, and the torque component always applies a rotational force to the incomplete gear in the opposite direction to the active rack.

[0006] Furthermore, the equipment frame comprises side frames on both sides and a tray placed horizontally between the side frames. The material container is placed inside the tray, and the edge of the material container extends upward through the tray to ensure that the material container is placed stably.

[0007] Furthermore, the knife holder consists of an outer frame and a knife set inside the outer frame. The outer frame is a rectangular frame that fits the frame of the equipment rack, and the knife is a double cross-shaped knife with the center protruding upwards, ensuring that the internal material can flow out quickly after the packaging is cut open.

[0008] Furthermore, the side frame of the equipment rack includes two parallel hollow vertical rods and a connecting strip between the vertical rods. A through groove is opened on the side of the vertical rod of the equipment rack near the tool holder. A slider is provided on the outer frame surface of the tool holder. The tool holder is slidably connected to the equipment rack through the slider, ensuring that the tool holder can move smoothly along the equipment rack in the vertical direction.

[0009] Furthermore, the support rods are positioned at the four corners of the tool holder. The diameter of the support rods is larger at the top and smaller at the bottom. A smooth chamfer is provided at the transition position of the diameter of the support rods. A shoulder is provided at the top of the larger diameter portion of the support rods to contact the bottom of the equipment rack support plate. A limiting plate connected to the support rod is provided at the top of the transition position of the diameter of the support rods. A limiting plate connected to the equipment rack is fitted at the bottom of the smaller diameter portion of the support rods. The shoulder can limit the maximum upward movement range of the support rods. The limiting plates with different fixing methods on the outside of the support rods form a movable range outside the support rods, allowing for variable installation positions to accommodate springs.

[0010] Furthermore, the spring is sleeved on the outside of the small-diameter portion of the support rod, and two limiting plates are connected to the two ends of the spring respectively. The spring always remains in a relaxed state and pushes the support rod upward through the limiting plates to make the support rod support the tool holder with a gap between the tool holder and the support plate surface of the equipment frame, ensuring that the tool holder has sufficient room to move.

[0011] Furthermore, the thrust of the spring is less than the torque generated by the torque assembly, thus preventing the spring from excessively lifting the tool holder through the support rod, which could cause the tool holder to become immobile.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention utilizes a support rod, a limiting plate, a spring, and an incomplete gear driven by a torsion component to lift the knife holder, allowing it to move vertically above the material container. When the robot places the package on the knife holder surface and presses it down, if the lifting force of the knife holder is insufficient to break the package, it will move downwards. During this movement, the incomplete gear rotates under the drive of the active rack on the support rod surface. Simultaneously, the support rod moves downwards and compresses the spring. When the incomplete gear rotates to a smooth part that approaches the active rack, it loses the restriction on the support rod by the active rack. At the same time, the compressed spring releases its stored energy, pushing the support rod upwards through the limiting plate, which in turn drives the knife holder upwards to cut the package. The combination of the rapid upward movement of the knife holder and the downward pressing force of the robot completes the breaking of the package, preventing situations where the package cannot be completely broken or cannot be broken at all. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the position of the support rod structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the tool holder of this utility model;

[0017] Figure 4 This is a schematic diagram of the incomplete gear meshing state of this utility model.

[0018] Reference numerals in the attached diagram: 1. Equipment frame; 2. Material container; 3. Tool holder; 4. Slot; 5. Support rod; 6. Limiting plate; 7. Drive rack; 8. Spring; 9. Incomplete gear; 10. Torque assembly. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figure 1-4As shown, an automatic unpacking robot includes a frame 1, with a material container 2 inside the frame 1. The frame 1 consists of side frames on both sides and a tray placed horizontally between the side frames. The material container 2 is placed inside the tray, with its edge extending upward through the tray to ensure stable placement. The top of the material container 2 is covered by a knife holder 3, which consists of an outer frame and a knife set inside the outer frame. The outer frame is a rectangular frame adapted to the frame of the frame 1, and the knife is a double cross-shaped knife with a central upward protrusion to ensure that the internal material can flow out quickly after the packaging is cut open. The side frames of the frame 1 include two parallel hollow vertical rods and a connecting strip between the vertical rods. A through groove is provided on the side of the vertical rod of the frame 1 near the knife holder 3. A slider is provided on the surface of the outer frame of the knife holder 3, and the knife holder 3 is slidably connected to the frame 1 through the slider to ensure that the knife holder 3 can move smoothly along the frame 1 in the vertical direction.

[0021] The bottom of the knife holder 3 is provided with a slot 4 that fits the edge of the material container 2. The knife holder 3 is slidably connected to the equipment frame 1. The bottom of the knife holder 3 is provided with a support rod 5 that passes through the equipment frame 1. The part of the support rod 5 that passes downward through the equipment frame 1 is fitted with two limiting plates 6. The limiting plate 6 at the top is fixedly connected to the support rod 5, and the limiting plate 6 at the bottom is fixedly connected to the equipment frame 1. The two limiting plates 6 divide the part of the support rod 5 that passes through the equipment frame 1 into upper and lower parts. The support rod 5 is located at the four corners of the knife holder 3. The diameter of the support rod 5 is larger at the top and smaller at the bottom. The transition position of the diameter of the support rod 5 is provided with a smooth chamfer. The top of the larger diameter part of the support rod 5 is provided with a shoulder that contacts the bottom of the support plate of the equipment frame 1. The top of the transition position of the diameter of the support rod 5 is provided with a limiting plate 6 connected to the support rod 5. The bottom of the smaller diameter part of the support rod 5 is fitted with a limiting plate 6 connected to the equipment frame 1. The shoulder can limit the maximum upward movement range of the support rod 5. The limiting plates 6 with different fixing methods on the outside of the support rod 5 form an movable range outside the support rod 5, and the installation position can be changed to place the spring 8.

[0022] The upper half of the support rod 5 is equipped with an active rack 7 near the equipment frame 1. The lower half of the support rod 5 is fitted with a spring 8 on the outside. The spring 8 is fitted on the outside of the small diameter part of the support rod 5. Two limiting plates 6 are connected to the two ends of the spring 8. The spring 8 is always in a relaxed state and pushes the support rod 5 upward through the limiting plates 6 so that the support rod 5 supports the tool holder 3 and leaves a gap with the support plate surface of the equipment frame 1, ensuring that the tool holder 3 has sufficient room to move. The equipment frame 1 is rotatably connected to an incomplete gear 9 that meshes with the active rack 7. A torque component 10 is provided at the input end of the incomplete gear 9. The torque component 10 always applies a rotational force to the incomplete gear 9 in the opposite direction to the active rack 7. The thrust of the spring 8 is less than the torque generated by the torque component 10, so as to prevent the spring 8 from excessively lifting the tool holder 3 through the support rod 5, which would cause the tool holder 3 to be unable to move.

[0023] The working principle of this utility model is as follows: First, the robot grabs the package and sends it into the equipment rack 1, aligns it with the knife holder 3, and conveys the package downward until the package contacts the knife holder 3 and is pressed down. When pressed, the package contacts the knife inside the knife holder 3 and squeezes the knife inside the knife holder 3 downward. Under the action of pressure, the knife cuts the package.

[0024] If the packaging is not cut open immediately under pressure, downward pressure will continue to be applied to the blade holder 3. The blade holder 3 is pressed down and moves. During the movement, the active rack 7 on the surface of the support rod 5 drives the incomplete gear 9 to rotate. At the same time, the limiting plate 6 outside the support rod 5 squeezes the spring 8 downward, causing the spring 8 to start storing energy. During this process, the pressure on the packaging from the blade holder 3 gradually increases. If the packaging breaks in the middle, the incomplete gear 9 and the spring 8 will push the blade holder 3 to reset through the support rod 5. If the blade holder 3 continues to move until the incomplete gear 9 loses engagement with the active rack 7, the support rod 5 loses the restriction of the incomplete gear 9 and, under the rebound action of the compressed and stored spring 8, quickly pushes the blade holder 3 upward. The blade holder 3, subjected to a sudden upward force, will actively insert into the packaging to cut it.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A robotic automatic unpacking device, comprising a device frame (1), wherein a material holding bin (2) is disposed inside the device frame (1), characterized in that: The top of the material container (2) is covered with a knife holder (3). The bottom of the knife holder (3) is provided with a slot (4) that fits the edge of the material container (2). The knife holder (3) is slidably connected to the equipment frame (1). The bottom of the knife holder (3) is provided with a support rod (5) that passes through the equipment frame (1). The part of the support rod (5) that passes downward through the equipment frame (1) is fitted with two limiting plates (6). The limiting plate (6) at the top is fixedly connected to the support rod (5), and the limiting plate (6) at the bottom is fixedly connected to the equipment frame (1). The two limiting plates (6) The support rod (5) passing through the equipment frame (1) is divided into upper and lower parts. The upper part of the support rod (5) is provided with an active rack (7) on the side near the equipment frame (1), and the lower part of the support rod (5) is fitted with a spring (8) on the outside. The equipment frame (1) is rotatably connected to an incomplete gear (9) that meshes with the active rack (7). The input end of the incomplete gear (9) is provided with a torque assembly (10). The torque assembly (10) always applies a rotational force to the incomplete gear (9) that is opposite to the active rack (7).

2. The robotic automatic unpacking device according to claim 1, characterized in that: The equipment frame (1) consists of side frames on both sides and a tray placed horizontally between the side frames. The material container (2) is set inside the tray, and the edge of the material container (2) passes through the tray upward.

3. The robotic automatic unpacking device according to claim 2, characterized in that: The tool holder (3) consists of an outer frame and a tool set inside the outer frame. The outer frame is a rectangular frame that is adapted to the frame of the equipment rack (1), and the tool is a double cross-shaped tool with the center protruding upward.

4. The robotic automatic unpacking device according to claim 3, characterized in that: The side frame of the equipment rack (1) includes two parallel hollow vertical rods and a connecting strip between the vertical rods. The vertical rods of the equipment rack (1) have through slots on the side near the tool holder (3). The outer frame surface of the tool holder (3) is provided with a slider. The tool holder (3) is slidably connected to the equipment rack (1) through the slider.

5. The robotic automatic unpacking device according to claim 4, characterized in that: The support rod (5) is located at the four corners of the tool holder (3). The diameter of the support rod (5) is larger at the top and smaller at the bottom. A smooth chamfer is provided at the transition position of the diameter of the support rod (5). A shoulder is provided at the top of the large diameter part of the support rod (5) to contact the bottom of the support plate of the equipment rack (1). A limiting plate (6) connected to the support rod (5) is provided at the top of the transition position of the diameter of the support rod (5). A limiting plate (6) connected to the equipment rack (1) is fitted at the bottom of the small diameter part of the support rod (5).

6. The robotic automatic unpacking device according to claim 5, characterized in that: The spring (8) is sleeved on the outside of the small diameter part of the support rod (5). Two limiting plates (6) are connected to the two ends of the spring (8). The spring (8) always remains in a relaxed state and pushes the support rod (5) upward through the limiting plate (6) so that the support rod (5) supports the tool holder (3) and leaves a gap between the support rod (5) and the tray surface of the equipment frame (1).

7. The robotic automatic unpacking device according to claim 6, characterized in that: The thrust of the spring (8) is less than the torque generated by the torque assembly (10).

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