Ton bag automatic unpacking device and unpacking method for metal particles

Abstract

The automatic ton bag unpacking device comprises a hopper, the hopper is in a big-end-up shape, openings are formed in the upper portion and the lower portion of the hopper, a bayonet A is arranged at the lower end of the interior of the hopper, a bayonet B is arranged on one side wall of the upper end of the hopper, a linear rail is arranged above the hopper, and a walking trolley is installed on the linear rail. The walking trolley is provided with a winch, the winch is used for hoisting ton bags, and the linear rail is located over the bayonet B; bag clamping mechanisms are arranged in the hopper and located on the two sides of the bayonet B respectively, each bag clamping mechanism comprises a telescopic mechanism, the fixed end of each telescopic mechanism is fixedly connected with the hopper, the movable end of each telescopic mechanism extends towards the ton bag and is provided with a clamping mechanism, and the clamping mechanisms are used for clamping the ton bag; according to the invention, the unpacking efficiency is improved, and the waste of excess materials after unpacking is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of billet production, and specifically relates to a ton bag automatic unpacking device and unpacking method for metal particles. Background Art

[0002] The ton bag unpacking machine that uses a taper tip tool for ton bag unpacking has the characteristics of good maintenance, economy and applicability, and is suitable for alloy ton bag unpacking sites. However, for ton bags of materials such as alloy particles, there is still a problem of remaining materials after the ton bag is lifted for unpacking. That is, when discharging, when the alloy particles flow to a certain extent and the weight of the alloy in the ton bag decreases to a certain extent, since the self-weight of the ton bag and the remaining alloy in the ton bag is not enough to overcome the tool resistance, the breakage opening of the ton bag can no longer continue to widen, and the remaining alloy particles in the bag are left in the ton bag. As the lifting hook is lifted, part of the remaining alloy flows out of the ton bag, and part still remains in the ton bag that has not been punctured, resulting in the retention of residual particles; in order to clear out the remaining materials, the current method is for workers to use a handsaw to cut open the ton bag at the remaining material part of the ton bag to discharge the remaining materials. Such a method significantly reduces the unpacking efficiency, has safety risks, and increases the labor intensity. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art, and provide a ton bag automatic unpacking device and unpacking method for metal particles.

[0004] The present invention provides the following technical solution: A ton bag automatic unpacking device for metal particles, including a hopper. The hopper is in the shape of being large at the top and small at the bottom and has openings at both the top and the bottom. A bayonet A is provided at the lower end inside the hopper, and a bayonet B is provided on one side wall of the upper end of the hopper. A straight track is provided above the hopper. A traveling trolley is installed on the straight track, and a winch is installed on the traveling trolley. The winch is used for lifting the ton bag, and the straight track is located directly above the bayonet B; on both sides of the bayonet B inside the hopper, there is a bag clamping mechanism respectively. The bag clamping mechanism includes a telescopic mechanism. The fixed end of the telescopic mechanism is fixedly connected to the hopper, and the movable end of the telescopic mechanism extends towards the ton bag and is equipped with a clamping mechanism. The clamping mechanism is used for clamping the ton bag.

[0005] Further, it further includes a controller, and the controller is in signal connection with the traveling trolley, the winch and the bag clamping mechanism.

[0006] Further, the telescopic mechanism includes a servo electric cylinder. A connecting rod is installed at the output end of the servo electric cylinder, and the clamping mechanism is installed at the end of the connecting rod.

[0007] Further, the clamping mechanism adopts a finger cylinder, and the finger cylinder is provided with two clamping arms.

[0008] Further, anti-slip rubber is provided on one side of the two clamping arms facing each other.

[0009] Further, the bayonet A includes four blades arranged obliquely, the bottom ends of the blades are fixedly connected to the inner wall of the hopper, and the upper ends of the four blades extend towards the center of the hopper in a cross shape.

[0010] Further, the bayonet B is a single blade and is arranged obliquely downward, and the extending direction of the blade is in the vertical plane where the linear track is located.

[0011] Further, the present invention also provides a method for unpacking a ton bag, which uses the above automatic unpacking device and includes the following steps: S1. After the hoist lifts the ton bag filled with materials, the traveling trolley drives the ton bag to move along the linear track to above the hopper and directly above the bayonet A; S2. The hoist lowers the ton bag so that the bottom of the ton bag is pierced by the bayonet A for the first discharging; S3. After the first discharging, the hoist drives the ton bag to separate from the bayonet A, and at the same time, the traveling trolley drives the ton bag with remaining materials to move towards the bayonet B so that the bayonet B pierces the ton bag B; S4. The hoist lifts the ton bag upward by a certain distance so that the bayonet B cuts a slit on the side of the ton bag for the second discharging; S5. After the second discharging, the bag clamping mechanism operates to clamp the ton bag, and then the telescopic mechanism reciprocates to shake the ton bag violently so as to completely release the remaining materials.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The unpacking process is automated, and the remaining materials in the ton bag can be cleared as much as possible, reducing the waste of the remaining materials, improving the unpacking efficiency, and reducing the labor intensity. Description of the Drawings

[0013] Figure 1 is the three-dimensional view of the present invention; Figure 2 is the front view of the present invention; Figure 3 is Figure 2 the A-A view of Figure 4 is Figure 3 the B-B view of In the figure: 1, hopper; 2, bayonet A; 3, bayonet B; 4, servo electric cylinder; 5, finger cylinder; 6, anti-slip rubber; 7, linear track; 8, hoist; 9, traveling trolley; 10, ton bag. Detailed Embodiments

[0014] Please refer to Figures 1-4, this embodiment is an automatic unpacking device for a ton bag 10 of metal particles, including a hopper 1. The hopper 1 is in the shape of a large upper part and a small lower part with openings at both the upper and lower ends. A bayonet A2 is provided at the lower end inside the hopper 1, and a bayonet B3 is provided on one side wall of the upper end of the hopper 1. A straight track 7 is provided above the hopper 1. A traveling trolley 9 is installed on the straight track 7, and a winch 8 is installed on the traveling trolley 9. The winch 8 is used to lift the ton bag 10, and the straight track 7 is directly above the bayonet B3; on both sides of the bayonet B3 inside the hopper 1, a bag clamping mechanism is provided respectively. The bag clamping mechanism includes a telescopic mechanism. The fixed end of the telescopic mechanism is fixedly connected to the hopper 1, and the movable end of the telescopic mechanism extends towards the ton bag 10 and is equipped with a clamping mechanism. The clamping mechanism is used to clamp the ton bag.

[0015] In this embodiment, the straight track 7 is made of an I-shaped steel beam.

[0016] Furthermore, it also includes a controller. The controller is in signal connection with the traveling trolley 9, the winch 8 and the bag clamping mechanism. In this embodiment, the controller adopts a PLC controller.

[0017] Furthermore, the telescopic mechanism includes a servo electric cylinder 4. A connecting rod is installed at the output end of the servo electric cylinder 4, and the clamping mechanism is installed at the end of the connecting rod. Furthermore, the clamping mechanism adopts a finger cylinder 5, and the finger cylinder 5 is provided with two clamping arms.

[0018] Furthermore, on one side of the two clamping arms facing each other, an anti-slip rubber 6 is provided. By setting the anti-slip rubber 6, the clamping mechanism can stably clamp the bag when clamping the bag to prevent slipping.

[0019] Furthermore, the bayonet A2 includes four blades arranged obliquely. The bottom end of each blade is fixedly connected to the inner wall of the hopper 1, and the upper ends of the four blades extend towards the center of the hopper 1 in a cross shape.

[0020] Furthermore, the bayonet B3 is a single blade and is arranged obliquely downward. The extending direction of the blade is in the vertical plane where the straight track 7 is located.

[0021] Further, the present invention also provides a method for unpacking a bulk bag 10. Using the above automatic unpacking device, it includes the following steps: S1. After the hoist 8 lifts the bulk bag 10 filled with materials, the traveling trolley 9 drives the bulk bag 10 to move along the linear track 7 to above the hopper 1 and directly above the bayonet A2; S2. The hoist 8 lowers the bulk bag 10 so that the bottom of the bulk bag 10 is pierced by the bayonet A2 for the first discharging. As the bulk bag 10 descends, the bottom of the bulk bag 10 will be pierced by the bayonet A2, so that the metal particles in the bulk bag 10 quickly flow out from the bottom opening into the hopper 1; S3. After the first discharging, there is still a certain amount of remaining material in the bulk bag 10 that has not completely flowed out. At this time, the hoist 8 drives the bulk bag 10 to lift upward by a certain distance to disengage from the bayonet A2. At the same time, the traveling trolley 9 drives the bulk bag 10 with the remaining material to move towards the bayonet B3 so that the bayonet B3 pierces the side of the bulk bag 10B; S4. The hoist 8 drives the bulk bag 10 to lift upward by a certain distance so that the bayonet B3 makes a long opening in the side of the bulk bag 10 for the second discharging. During the second discharging, a part of the remaining material flows out from the long opening made in the side; S5. After the second discharging, the bag clamping mechanism operates to clamp the bulk bag, and then the telescopic mechanism reciprocates to make the bulk bag be violently shaken to completely release the remaining material; During operation, first, the telescopic mechanisms on both sides of the hopper 1 operate to make the clamping mechanisms on both sides move towards the bulk bag. Then, the finger cylinder 5 operates to clamp both sides of the bulk bag. Then, the telescopic mechanism reciprocates at a certain speed. At this time, the operation of the bag clamping mechanism is similar to two hands pinching the bulk bag from both sides and violently shaking it, so that the remaining material in the bag flows out from the bottom opening and the long opening in the side as much as possible.

[0022] When the above steps are executed, the traveling trolley 9, the hoist 8 and the bag clamping mechanism can be automatically controlled by the PLC controller program to execute actions in the order of the steps to achieve automation; the driving mechanism of the traveling trolley 9 uses a servo motor and is signal-connected to the PLC controller.

Claims

1. An automatic unpacking device for bulk bags of metal particles, characterized in that: It includes a hopper. The hopper is in the shape of being larger at the top and smaller at the bottom, with openings at both the top and the bottom. At the lower end inside the hopper, there is a bayonet A, and on one side wall at the upper end of the hopper, there is a bayonet B. Above the hopper, there is a straight track. A traveling trolley is installed on the straight track, and a winch is installed on the traveling trolley. The winch is used to lift the ton bag. The straight track is directly above the bayonet B. Inside the hopper, on both sides of the bayonet B, there is a bag clamping mechanism respectively. The bag clamping mechanism includes a telescopic mechanism. The fixed end of the telescopic mechanism is fixedly connected to the hopper, and the movable end of the telescopic mechanism extends towards the ton bag and is equipped with a clamping mechanism. The clamping mechanism is used to clamp the ton bag.

2. The automatic unpacking device for bulk bags of metal particles according to claim 1, characterized in that: It further includes a controller, and the controller is in signal connection with the traveling trolley, the winch and the bag clamping mechanism.

3. The automatic unpacking device for bulk bags of metal particles according to claim 1, characterized in that: The telescopic mechanism includes a servo electric cylinder. The output end of the servo electric cylinder is equipped with a connecting rod, and the clamping mechanism is installed at the end of the connecting rod.

4. The automatic unpacking device for bulk bags of metal particles according to claim 1, characterized in that: The clamping mechanism adopts a finger cylinder, and the finger cylinder is provided with two clamping arms.

5. The automatic unpacking device for bulk bags of metal particles according to claim 4, characterized in that: On one side of the two clamping arms facing each other, there is anti-slip rubber.

6. The automatic unpacking device for bulk bags of metal particles according to claim 1, characterized in that: The bayonet A includes four inclined blades. The bottom ends of the blades are fixedly connected to the inner wall of the hopper, and the upper ends of the four blades extend towards the center of the hopper to form a cross shape.

7. An automatic unpacking device for bulk bags of metal particles according to claim 1, characterized in that: The bayonet B is a single blade and is arranged obliquely downward. The extending direction of the blade is within the vertical plane where the straight track is located.

8. A method for unpacking a bulk bag, characterized in that: Using the automatic unpacking device according to any one of claims 1-7, it includes the following steps: S1. After the winch lifts the ton bag filled with materials, the traveling trolley drives the ton bag to move along the straight track to the position directly above the hopper and directly above the bayonet A. S2. The winch lowers the ton bag so that the bottom of the ton bag is pierced by the bayonet A for the first discharging. S3. After the first discharging, the winch drives the ton bag to separate from the bayonet A. At the same time, the traveling trolley drives the ton bag with the remaining materials to move towards the bayonet B so that the bayonet B pierces the ton bag B. S4. The winch lifts the ton bag upwards by a certain distance so that the bayonet B cuts a slit on the side of the ton bag for the second discharging. S5. After the second discharging, the bag clamping mechanism acts to clamp the ton bag, and then the telescopic mechanism reciprocates to make the ton bag shake violently so as to completely release the remaining materials.

Images