According to the injection molding machine customized injection molding manipulator need to consider the following aspects:

First, injection molding machine parameter matching

1. Injection molding machine model and size

- First of all, it is necessary to accurately understand the model and overall size of the injection molding machine, including length, width, height, etc. Different types of injection molding machines have large differences in dimensions, and the design of the manipulator should ensure that it can be rationally arranged in the installation space of the injection molding machine and does not interfere with the injection molding machine. For example, for a small tabletop injection molding machine, where space is limited, the manipulator may need to be designed more compact; For large industrial injection molding machines, the manipulator needs to have enough strength and span to cover the working area of the injection molding machine.

- Measure the template size of the injection molding machine, which is essential to determine the position and range of action of the manipulator to grasp the product. The template size determines the relative position of the product in the injection molding machine, and the design of the manipulator's motion trajectory and grasping mechanism should be precisely planned according to the template size to ensure that the product can be accurately removed from the mold. For example, if the injection molding machine template size is large, the arm of the manipulator may need to be designed to be longer and have a larger range of motion to accommodate the different positions of the product removal needs.

2. Clamping force of injection molding machine

- Determine the clamping force of the injection molding machine. The clamping force will affect the molding quality and stability of the product in the injection molding process, and the manipulator needs to consider the clamping force when taking out the product to avoid damage to the mold and the product. For example, for injection molding machines with large clamping force, the manipulator needs more stable and accurate action when grasping the product to prevent mold damage or product deformation due to improper external force. Parameters such as the grasping force and motion speed of the manipulator should be reasonably adjusted according to the clamping force of the injection molding machine. In general, the grasping force of the manipulator is less than a certain proportion of the clamping force of the injection molding machine (such as 10%-20%) to ensure safe operation.

- According to the clamping force and the characteristics of the product, choose the appropriate structure and material of the manipulator arm. For large products produced by injection molding machines with large clamping force, the manipulator arm may need to use high-strength alloy materials to withstand large loads and impact forces. At the same time, the structural design of the arm should ensure that there will be no excessive deformation or vibration when bearing the load, affecting the accuracy and stability of the product.

3. Injection cycle and production speed

- Analyze the injection cycle and production speed of the injection molding machine. Injection cycle includes injection, pressure holding, cooling, mold opening and other stages of time allocation. The speed and time control of the manipulator should be matched with the production rhythm of the injection molding machine to achieve efficient production. For example, if the injection cycle of the injection molding machine is short, the action speed of the manipulator needs to be increased accordingly to ensure that the product can be removed in time after the opening of the mold, without affecting the next injection cycle. The speed and response time of the manipulator can be improved by optimizing the control system and mechanical structure of the manipulator.

- Determine the working efficiency and reliability requirements of the manipulator according to the production speed of the injection molding machine. Injection molding machines with high production speed require the manipulator to have higher stability and continuous working ability to avoid production interruption due to robot failure. For example, for injection molding machines that produce hundreds of pieces per hour, the manipulator may need to have fast and accurate grasp and placement capabilities, and be able to operate continuously for long periods of time without failure. This requires the key components of the manipulator such as motors, transmission systems, sensors, etc., to have high quality and reliability.

Second, product characteristics adaptation

1. Product size and weight

- Measure the size and weight of the product, which is one of the key parameters for custom injection molding robots. The grasping mechanism and arm load capacity of the manipulator should be designed according to the size and weight of the product. For example, for small and lightweight products, a simple pneumatic clamp can be used to grasp them; For large or heavy products, it may be necessary to use large hydraulically driven grippers or special adsorption devices, and the arm structure of the manipulator should be able to withstand the weight of the product. At the same time, it is necessary to consider the requirements of the product size on the movement space of the manipulator to ensure that the manipulator can complete the grasping and moving actions without colliding with the product.

- According to the size and shape characteristics of the product, design the appropriate grabbing method. Different shapes of products require different types of grippers or adsorption devices. For example, for round products, a three-prong or four-prong center symmetric clamp can be used; Flat shaped articles may require a flat adsorption device or a manipulator with a specially shaped claw. In addition, it is also necessary to consider the finish and material characteristics of the surface of the product to avoid damage to the surface of the product during the grasping process. For example, for plastic products with high surface requirements, the claw can be made of soft materials or special coatings to reduce scratches on the surface of the product.

2. Product shape and structural complexity

- Analyze the shape and structural complexity of the product, which determines the difficulty of grasping and handling by the manipulator. For products with complex shapes, the grasping mechanism of the manipulator needs to have higher flexibility and adaptability. For example, for products with special structures such as backsnaps and side holes, the manipulator may need to use a clamp that can be rotated or adjusted at multiple angles in order to be able to smoothly remove the product from the mold. At the same time, the trajectory planning of the manipulator should also consider the shape characteristics of the product to avoid collision with the mold or other parts during the extraction process.

- If the structure of the product is complex and the precision is high, the positioning accuracy and action stability of the manipulator need to be improved accordingly. High-precision sensors and control systems can be used to ensure that the robot can accurately place the product to the specified position, for example, in some production lines requiring secondary processing or assembly, the positioning accuracy of the robot may need to reach ±0.05mm to ensure that the product can enter the next process correctly. In addition, for some thin-walled products or products that are easy to deform, the manipulator should use gentle actions and appropriate support methods in the process of grasping and handling to prevent deformation or damage to the product.

Third, functional requirements and control system integration

1. Determination of functional requirements

- Determine the functions required by the injection molding manipulator according to the production process and actual needs. Common functions include product removal, inlay installation, water nozzle removal, etc. For the product removal function, the grasping method, moving path and speed of the manipulator should be considered; For the mounting function of the inlay, the manipulator needs to have accurate positioning and placement capabilities; The nozzle cutting function requires corresponding cutting tools and action control. For example, if the inlay needs to be installed immediately after injection molding in the production process, the manipulator should be designed with a special inlay grab and installation mechanism, and can coordinate with the action of the injection molding machine to ensure that the operation is carried out at the right time.

- Consider the need for automated warehousing and delivery. If the production line needs to be fully automated, the injection molding manipulator may need to be integrated with automated warehousing systems and conveyor lines. For example, the robot places the removed product onto the conveyor line, which tranships the product to the next process or storage area. In this case, the control system of the manipulator must communicate and coordinate with the control system of the storage system and the transmission line to realize the automation of the entire production process. At the same time, according to the requirements of warehousing and transportation, the placement action and position accuracy of the manipulator should be designed to ensure that the product can be accurately placed in the specified position.