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Introduction to robot palletizer

Time : 2021-07-23 Hits : 18

Palletizing robot is a mechanical combination of computer program product. Provides higher production efficiency for modern production. Palletizing machines have a wide range of applications in the palletizing industry. The palletizing robot greatly saves labor and space. The operation of the palletizing robot is flexible and accurate, fast and efficient, with high stability and high operating efficiency.The palletizing robot system adopts the patented coordinate robot, which takes up a flexible and compact installation space. The idea of building a high-efficiency and energy-saving automatic block forming machine production line in a small area has become a reality.

rp1000-robotic-palletizer-brenton_2020-12-22-220803

Introduction

With the continuous development of my country's economy and the rapid advancement of science and technology, robots have been widely used in industries such as palletizing, gluing, spot welding, arc welding, spraying, handling, and measurement.

There are many reasons, including the type of packaging, the factory environment, and customer needs that turn palletizing into a difficult bone in the packaging factory. In order to overcome these difficulties, all aspects of the palletizing equipment are being developed and improved, including from the manipulator to the software to manipulate it. The demand for flexibility continues to grow in the market. This trend has affected many aspects of packaging, and the latter part of the production line is no exception. Retail customers, especially those influential large supermarkets like Wal-Mart, often need to customize some random pallets, but they have to customize each pallet, and the form of the pallet is only occasionally repeated. Moreover, it is more difficult to efficiently produce this kind of random pallets.

main-product_rpm_modular-robotic-palletizer

Production line

After the workers have finished packing the products, they enter the conveyor line 1, the products are conveyed to the sealing machine, and then pass through the conveyor line 2. There is a positioning device in line 2 which can also be called a positioning baffle (it has been successfully on the Wahaha production line) Application), this device and positioning plate can complete the rotation and positioning of the box, and the box can be positioned on the left side, and then transported to the buffer zone 1. The buffer zone has a booster device, which can transport the box appropriately To the free space, push the full tray to move buffer 2. Above the buffer zone is a palletizing robot. The robot uses the suction cup of the manipulator to lift 15 boxes (15 in small bags, 8-10 in boxes and tins) as a whole to lift vertically, and run horizontally to avoid safe passages. , The width and height are both 2 meters. After passing through the safe passage, it is placed vertically in the stacking area. The front positioning baffle has already rotated the box, so the manipulator does not need to rotate. After the placement is completed, it will return according to the original path, and the stacking area After finishing the 10-layer code stamping, fork it away by a forklift, and place an idle code plate. The front buffer 2 code disc is empty after the box is removed. It is manually removed and then placed in buffer 1 when the buffer 1 code disc is transported.

The system is also equipped with an emergency stop button, which can be stopped manually or automatically; the working range of the robot support frame is equipped with a grating safety system, and the alarm signal light will be on in the case of a fault or abnormal situation. The system will stop in an emergency. Continue to run; there is an automatic memory function, which can continue to complete the work after a power failure or failure [2].

The drawings of the conveyor line are as follows:

mp1000-bulk-robotic-palletizer-brenton_2020-12-22-220914

Operating efficiency calculation

According to the sealing time provided by the customer 15 boxes/minute, if one grabs the box, it takes 4 seconds and a running cycle to complete the lifting and conveying of the product, and place it on the return path. Because the lower part is the walking area, the difference of the guide rail cannot be applied. To make up the movement, you can only walk in a straight line. To use this kind of work speed is not possible, and it is very unsafe. According to the overall transportation method of the box, the calculation is started according to the transportation of one box. It takes 60 seconds for a code plate to fill up. In this 60 seconds (the other two One can have 32 seconds-40 seconds, and 8-10 can be coded), and there is plenty of time to complete the boost, grab, lift, convey, place and return.

The above is the product conveying method of box packaging. Please refer to the renderings for the specific process.

The production cycle of large-bag products is 15 seconds/bag, so it can directly complete a single yard stomping transportation, and the time is also sufficient, mainly because the load is not large, so the operating speed can be increased.

In summary, the use of palletizing robots greatly improves the efficiency of handling and palletizing. Save a lot of manpower and greatly reduce labor costs. After the robot runs for a year, the cost invested can be recovered. The robot has been running for at least ten years under normal maintenance. With the rise of large-volume fully automated palletizing production lines, this palletizing system will have a broader market prospect and development potential!

Main technical parameters of palletizing robot

Stacking robot

Power: Three-phase, 5KW, 380V, 50HZ/60Hz

Air pressure: 3~6kg/cm2 Speed: 25 boxes/min

For random pallets, the palletizing robot is the only option. Nevertheless, robot loading also faces more problems, and it will be more difficult to produce at a higher speed.

A robotic palletizer that handles random loading requires special software. Through software, the robotic palletizer is connected to other parts of the production line, which is a huge improvement.

A robot used to build random pallets can be integrated into the warehouse management system (WMS) of the factory. Ideally, it will become the front end of WMS, coordinating work with warehouse software to produce mixed pallets.

Sophisticated software can also meet the demand for ready-to-shelf pallets. Generally speaking, this means that after the products are palletized, the labels of some or all of the packaging containers must face outwards. Robotic palletizing equipment is another choice for demanding applications: palletizing in cold storage warehouses. In the field of consumer packaging, handling boxes in a freezer warehouse is one of the most difficult tasks. Workers have to alternate work frequently to keep their bodies warm, which indirectly reduces work efficiency and increases labor costs.

In a freezing environment, automated random access palletizers are not the right choice, because most automated random access palletizers use compressed air pipes that freeze in the cold storage. Compared with automated palletizers, palletizing robots are more compact in size, which is particularly important because the space in the refrigerated warehouse is very precious. Nevertheless, there are some problems in the application of robots in refrigerated warehouses. Some suppliers have begun to design special palletizing robots for cold storage warehouses.

When using a palletizing robot, one important thing to consider is how the robot grasps a product. The vacuum gripper is the most common end-of-arm tool (EOAT). Relatively speaking, they are cheap, easy to operate, and can efficiently load most loads. However, in some specific applications, vacuum grippers may also encounter problems, such as porous substrates, flexible packaging with liquid content, or packaging with uneven surfaces.

Other EOAT options include flip-top grips, which can clamp the sides of a bag or other packaging form; fork grips, which insert into the bottom of the package to lift the package; and bag grips, which are flip tops. It is a hybrid of two-style and fork-style grippers, and its fork part can wrap the bottom and both sides of the package.

Other combinations of basic EOAT types are also possible. A beverage packer encountered difficulties when stacking corrugated pallets filled with bottles and shrink-wrapped. The vacuum suction cup would tear off the film on the pallets.

Features

1. Simple structure and few parts. Therefore, the failure rate of parts is low, the performance is reliable, and the maintenance and repair are simple.
Less spare parts in stock are required.

2. It occupies a small area. It is conducive to the layout of the production line in the customer's factory, and a larger warehouse area can be reserved. The palletizing robot can be installed in a narrow space and can be used effectively.

3. Strong applicability. When the size, volume, shape of the customer's product and the outer dimension of the tray change, only a slight modification can be made on the touch screen, which will not affect the customer's normal production. The change of mechanical palletizer is quite troublesome or even impossible.

4. Low energy consumption. Generally, the power of a mechanical palletizer is about 26KW, while the power of a palletizing robot is about 5KW. Greatly reduce the customer's operating costs.

5. All control can be operated on the screen of the control cabinet, and the operation is very simple.

6. Only need to locate and grasp the starting point and placement point, the teaching method is simple and easy to understand.

PT-Chronos_rplseries_robot_palletiser

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