Bag stack supply device

Abstract

The utility model relates to the field of logistics conveying, in particular to a bag stack supply device which comprises oppositely-arranged door-shaped supporting frames, guide rails are arranged along vertical beams of the supporting frames, and a lifting platform is arranged between the supporting frames in a sliding mode through the guide rails. The supporting frame is further provided with a platform lifting driving unit for driving the lifting platform to ascend and descend, and the lifting platform is provided with a rotating platform. The lifting platform can rise along with grabbing of the bag stacks and lowering of the height of the bag stacks, in addition, after the bag stacks close to the bag grabbing mechanical arm are grabbed, the bag stacks can be rotated through the rotating platform, and the bag stacks in the distance are rotated to the position close to the bag grabbing mechanical arm. The whole bag stack supply device can be matched with the multi-axis mechanical arm to adjust the relative posture between the bag stack and the bag grabbing mechanical arm, and the posture adjusting flexibility and the bag grabbing efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics transportation, in particular to a bag stack bag feeding device. Background Art

[0002] The bag stack of cement packaging bags is formed by stacking bag stacks in a rotating and stacking manner, and the bag stack is composed of several stacked cement packaging bags. The bag stack is transported to a designated station in the factory by a forklift for subsequent cement filling processes. The first process in the subsequent cement filling process is to grab the bag stack from the bag stack. In the existing bag stack grabbing process, the bag grabbing manipulator is installed on a multi-axis robotic arm, and the multi-axis robotic arm is used to adjust the relative pose between the bag grabbing manipulator and the bag stack to ensure that the bag grabbing manipulator can successfully grab the bag stack. That is, during the bag stack grabbing process, the bag stack remains stationary and the adjustment is completely achieved by the action of the multi-axis robotic arm. In actual production, if the overall bag stack can be adjusted synchronously with the multi-axis robotic arm, it will undoubtedly increase the flexibility of pose adjustment and the bag grabbing efficiency. Based on this, the bag stack bag feeding device of the present utility model is proposed. Content of the Utility Model

[0003] In view of the above problems, the embodiment of the present utility model provides a bag stack bag feeding device.

[0004] A bag stack bag feeding device provided by an embodiment of the present utility model includes a support frame that is oppositely arranged and in a gate shape. A guide rail is arranged along the vertical beam of the support frame, and a lifting platform is slidably arranged between the support frames through the guide rail. A platform lifting drive unit for driving the lifting platform to lift is also arranged on the support frame, and a rotating platform is arranged on the lifting platform.

[0005] Compared with the prior art, the beneficial effect of the present utility model is that the lifting platform can rise as the bag stack is grabbed and the height of the bag stack decreases. In addition, when the bag stack near the bag grabbing manipulator is grabbed, the bag stack can be rotated by the rotating platform to rotate the bag stack far away to a position close to the bag grabbing manipulator. The overall bag stack bag feeding device can cooperate with the multi-axis robotic arm to adjust the relative pose between the bag stack and the bag grabbing manipulator, increasing the flexibility of pose adjustment and the bag grabbing efficiency.

[0006] Optionally, a bag stack clamping unit is arranged at the side position of the rotating platform to clamp the periphery of the bottom of the bag stack after the bag stack is placed on the rotating platform, ensuring the stability of the bag stack, and at the same time, it can also push the bag stack to ensure that it is in the center position of the rotating platform.

[0007] Optionally, the platform lifting drive unit includes drive sprockets disposed in the support frame above the four corners of the lifting platform. A redirecting sprocket is disposed on one side of the drive sprockets in the support frame. The drive sprockets are paired in twos, and a drive chain is disposed between the drive sprockets in the same group. A lifting chain is disposed on both the process section and the return section of each drive chain. The bottom end of the lifting chain is fixed to the lifting platform after bypassing the adjacent redirecting sprocket. A transmission shaft is disposed between the oppositely arranged drive sprockets in the two groups of drive sprockets. A servo drive motor is disposed on one side of the transmission shaft on the support frame, and the servo drive motor is in transmission connection with the transmission shaft.

[0008] Optionally, the bag stack clamping unit includes a clamping mounting seat disposed on the side surface of the rotating platform, a clamping connecting rod hinged to the clamping mounting seat in the middle, a clamping block disposed at the top end of the clamping connecting rod, and a clamping cylinder disposed between the bottom end of the clamping connecting rod and the bottom surface of the rotating platform. The end of the cylinder body of the clamping cylinder is hinged to the bottom surface of the rotating platform, and the end of the piston rod is hinged to the bottom end of the clamping connecting rod.

[0009] Optionally, support guide wheels are disposed on the bottom surface of the rotating platform, and the support guide wheels play a role in stable support during the rotation of the rotating platform to ensure rotation stability. Description of the Drawings

[0010] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not limit the present invention. In the drawings:

[0011] Figure 1 is a schematic structural diagram of a bag stack feeding device provided by an embodiment of the present invention;

[0012] Figure 2 is a schematic structural diagram of a part of the lifting platform provided by an embodiment of the present invention;

[0013] Figure 3 is a schematic structural diagram of a platform lifting drive unit provided by an embodiment of the present invention;

[0014] Figure 4 is Figure 1 a partial enlarged view of the structure at A in

[0015] Among them, 1, support frame; 2, guide rail; 3, lifting platform; 4, platform lifting drive unit; 5, rotating platform; 6, bag stack clamping unit; 7, drive sprocket; 8, redirecting sprocket; 9, drive chain; 10, lifting chain; 11, transmission shaft; 12, servo drive motor; 13, clamping mounting seat; 14, clamping connecting rod; 15, clamping block; 16, clamping cylinder. Detailed Embodiment

[0016] To make the objectives, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below in conjunction with the embodiments and the drawings. Herein, the illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model, but not to limit the present utility model.

[0017] Refer to Figures 1-4 , a bag stack feeding device provided by an embodiment of the present utility model includes a support frame 1 which is oppositely arranged and in a gate shape. A guide rail 2 is arranged along the vertical beams of the support frame 1, and a lifting platform 3 is slidably arranged between the support frames 1 through the guide rail 2. A platform lifting drive unit 4 for driving the lifting and lowering movement of the lifting platform 3 is further arranged on the support frame 1, and a rotating platform 5 is arranged on the lifting platform 3.

[0018] During implementation, the lifting platform 3 can rise as the bag stack is grabbed and the height of the bag stack decreases. In addition, when the bag stack near the bag-grabbing manipulator is completely grabbed, the rotating platform 5 can rotate the bag stack to rotate the distant bag stack to a position close to the bag-grabbing manipulator; the entire bag stack feeding device can cooperate with a multi-axis robotic arm to adjust the relative pose between the bag stack and the bag-grabbing manipulator, increasing the flexibility of pose adjustment and the bag-grabbing efficiency.

[0019] During implementation, a bag stack clamping unit 6 is arranged at the side position of the rotating platform 5. After the bag stack is placed on the rotating platform 5, it clamps the periphery of the bottom of the bag stack to ensure the stability of the bag stack. At the same time, it can also push the bag stack to ensure that it is in the center position of the rotating platform 5, which is convenient for identifying and positioning the position of the bag stack during the bag-grabbing process.

[0020] During implementation, the platform lifting drive unit 4 can be realized by driving structures such as a lead screw pair, a sprocket chain, a cylinder, an electric cylinder, etc. The present utility model will be described by taking the realization of driving by a sprocket chain structure as an example. Specifically, the platform lifting drive unit 4 includes drive sprockets 7 arranged in the support frame 1 and above the four corners of the lifting platform 3. A redirecting sprocket 8 is arranged on one side of the drive sprocket 7 in the support frame 1. The drive sprockets 7 are grouped in pairs, and a drive chain 9 is arranged between the drive sprockets 7 in the same group. A lifting chain 10 is arranged on both the forward stroke section and the return stroke section of each drive chain 9. The bottom end of the lifting chain 10 is fixed to the lifting platform 3 after bypassing the adjacent redirecting sprocket 8; a transmission shaft 11 is arranged between the oppositely arranged drive sprockets 7 in the two groups of drive sprockets 7. A servo drive motor 12 is arranged on the support frame 1 on one side of the transmission shaft 11, and the servo drive motor 12 is in transmission connection with the transmission shaft 11; during the lifting process, the servo drive motor 12 drives the transmission shaft 11 to rotate, and the drive chain 9 between each group of drive sprockets 7 rotates, thereby driving the lifting chain 10 connected to the drive chain 9 to rise or fall, so as to complete the lifting and lowering of the lifting platform 3.

[0021] During implementation, the bag stack clamping unit 6 includes a clamping mounting seat 13 arranged on the side of the rotating platform 5, a clamping connecting rod 14 hinged to the clamping mounting seat 13 in the middle, a clamping block 15 is arranged at the top of the clamping connecting rod 14, and a clamping cylinder 16 is arranged between the bottom end of the clamping connecting rod 14 and the bottom surface of the rotating platform 5, the end of the cylinder body of the clamping cylinder 16 is hinged to the bottom surface of the rotating platform 5, and the end of the piston rod is hinged to the bottom end of the clamping connecting rod 14; when it is necessary to clamp the bag stack, the clamping cylinder 16 is actuated, and the piston rod is extended to push the bottom end of the clamping connecting rod 14, so that the clamping connecting rod 14 rotates with the clamping mounting seat 13 as the axis, and the clamping block 15 at the top approaches the bag stack until the clamping action is completed. While clamping, the bag stack can also be centered to the central position of the rotating platform 5, which is convenient for identification and positioning when grabbing the bag stack later, and convenient for the bag stack grabbing process.

[0022] During implementation, the bottom surface of the rotating platform 5 is provided with supporting guide wheels, which play a stabilizing supporting role during the rotation of the rotating platform 5 to ensure the rotation stability.

[0023] During implementation, the rotating platform 5 can be rotationally driven by a servo motor plus a slewing bearing structure, such as the servo motor and the slewing bearing are both arranged on the lifting platform 3, wherein the inner ring of the slewing bearing is fixed to the lifting platform 3, and the rotating platform 5 is fixed on the outer ring, and the servo motor and the outer ring are transmitted to realize that the servo motor drives the rotating platform 5 to rotate through the outer ring.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A bag stack feeding device, characterized in that, It includes a support frame that is relatively arranged and in a portal shape. A guide rail is provided along the vertical beam of the support frame, and a lifting platform is slidably arranged between the support frames through the guide rail. A platform lifting drive unit for driving the lifting action of the lifting platform is also provided on the support frame, and a rotating platform is arranged on the lifting platform.

2. The bag stack feeding device according to claim 1, characterized in that, A bag stack clamping unit is arranged at the side position of the rotating platform.

3. The bag stack feeding device according to claim 1, characterized in that The platform lifting drive unit includes drive sprockets arranged in the support frame and above the four corners of the lifting platform. A redirecting sprocket is arranged on one side of the drive sprockets in the support frame. The drive sprockets are grouped in pairs, and a drive chain is arranged between the drive sprockets in the same group. A lifting chain is arranged on both the forward and return sections of each drive chain. The lifting chain bypasses the adjacent redirecting sprocket and is fixed to the bottom end of the lifting platform at the back end; a transmission shaft is arranged between the relatively arranged drive sprockets in the two groups of drive sprockets. A servo drive motor is arranged on the support frame on one side of the transmission shaft, and the servo drive motor is in transmission connection with the transmission shaft.

4. The bag stack feeding device according to claim 2, wherein, The bag stack clamping unit includes a clamping mounting seat arranged on the side surface of the rotating platform, a clamping connecting rod hinged to the clamping mounting seat in the middle, a clamping block arranged at the top end of the clamping connecting rod, and a clamping cylinder arranged between the bottom end of the clamping connecting rod and the bottom surface of the rotating platform. The end of the cylinder body of the clamping cylinder is hinged to the bottom surface of the rotating platform, and the end of the piston rod is hinged to the bottom end of the clamping connecting rod.

5. The bag stack feeding device according to claim 1, wherein, Support guide wheels are arranged on the bottom surface of the rotating platform.

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