Automatic dispensing robot arm

Types of Automatic Dispensing Robot Arms

An automatic dispensing robot arm is a mechanical device used to precisely apply specific products to locations predefined by a digital blueprint. While industrial automatic dispensing robots are mainly used in manufacturing and assembly lines, mainly within the furniture and food industries, at-home automatic dispensing robots are gaining popularity in the DIY market. The latter are mostly used to help hobbyists and crafters apply glue or other liquids with more precision and less mess.

Industrial dispensing robots usually come equipped with different types of dispensers, including valves and nozzles, which are used to apply various fluids in different viscosities and consistencies. Pneumatic valves are the most commonly used dispensers. They are usually applied for products such as sealants, adhesives, and coatings. Pneumatic dispensing valves are equipped with an actuating mechanism that is controlled either electronically or pneumatically. This setup enables the precise and controlled application of liquids. Geometries, droplet sizes, and other application methods are defined by the valve used.

Pneumatic valves can further be divided into the following categories:

• Pulse Valves: These valves use bursts of compressed air to control the flow of liquid. They are mainly used for liquids with low to medium viscosity.
• Pressurized Valves: Also known as pressure-controlled valves, they are used for dispensing liquids with a relatively high viscosity. Unlike pulse valves, these are activated with a specific air pressure.
• Solenoid Valves: These valvesto which actuation occurs through electrical signals. They are used in areas requiring rapid responses or multiple dispensing locations.
• Timed Valves: Also known as duration control valves, these are used to dispense products based on time. They are commonly used for the consistent application of adhesives and coatings.

Automated dispensing systems can also be categorized based on their dispensing technology. For example, pressure-based dispensing gives a fluid its driving force by applying pressure to it, whereas vacuum-based dispensing uses atmospheric pressure to push the fluid out of a container. Gravity-based dispensing systems rely on the natural downward force of gravity to disperse an item. Gravity is usually used in conveying systems, where products are passed through chutes or hoppers.

Robot dispensers can also be categorized by their guiding mode. To put it simply, teaching modes refer to how the dispensing program was taught or programmed. Manual teaching means that the program was taught manually through the manual input of specific coordinates. In contrast, automatic teaching means that the program was taught automatically byված capturing its movement.

Another way to categorize dispensing systems is by their application method. Touch and non-touch application methods exist. The latter is the preferred application method in the case of high-viscosity liquids that would require significant pressure to be applied to get a decent coverage. Non-touch methods are also used when the product to be dispensed is sensitive and could easily get damaged with physical contact.

Specifications & Maintenance

• Loading Capacity:

  Automatic dispensing robots have a loading capacity that determines the weight of the objects they can handle. This can range from light loads, such as small bottles or parts weighing a few grams, to heavy loads for industrial robots, which could be several kilograms or more.

• Payload:

  Another key specification is the robot's payload, which is the maximum weight it can carry. It is critical in determining what products the robot can handle efficiently. Light-duty robots are designed for lighter payloads, while heavy-duty robots are built to handle heavier payloads.

• Reach:

  The reach of a dispensing robot refers to how far the robot arm can extend. This determines the robot's operational workspace. A robot with a longer reach can access products placed farther away, while a robot with a shorter reach is suitable for tasks in close proximity.

• Accuracy:

  Accuracy is the ability of a robot to position itself and handle products precisely. High precision is essential when dispensing small quantities of a product or when the placement of the item needs to be perfect.

• Power and Control Systems:

  It includes details like the type of motor used (e.g., stepper or servo motors), the drive powers of the robots, such as voltage and current requirements, and the control system that allows the robot to be programmed to dispense exact product amounts.

• End Effectors:

  The end effectors are the attachments on the robot that interact with the products, such as grippers or suction cups. Specifications can include their shape, size, and material.

• Programming and Software:

  Robots are often programmed to dispense specific products and sometimes come with software that allows more straightforward instructions for dispensing different items to be entered. This can include things like the volume or weight of the product to be dispensed and the frequency and exact placement of the dispensing.

Maintenace

Proper maintenance of an automatic dispensing robot is essential for its smooth operation, longevity, and accuracy. Because of this, routine maintenance checks should be done on the dispensing robots to help diagnose and assess their operational status.

Some basic maintenance tips are:

• Clean regularly:

  It may seem like an obvious tip, but users should clean the robot regularly to get rid of any debris, residue, or contaminants that may have gathered on the surface of the dispensing area or the robot itself over time. A soft cloth and a mild cleaning solution can be used for this.

• Avoid harsh chemicals:

  As stated earlier, it's essential to use only solutions and chemicals that won't damage the surfaces of the robot or the dispensing area. Harsh chemicals may damage sensitive parts like sensor components and camera mechanisms.

• Preventive servicing:

  Consider scheduling preventive maintenance and servicing of the robot at fixed intervals. Doing this will significantly help to find hidden issues and enhance the overall performance of the robot.

Usage scenarios of automatic dispensing robot arms

The usage scenarios for an automatic dispensing robot arm are broad and diverse. They are useful in the food and beverage industry. Businesses use them for precise and consistent portioning of toppings, condiments, sauces, and other food items to ensure uniformity and control in serving sizes.

The automatic dispensing robot arms are also found in laboratories. They are useful for automated liquid handling tasks like pipetting, dispensing, and sample mixing. The devices enhance accuracy, repeatability, and efficiency in biological, chemical, and pharmaceutical laboratories.

In the assembly and manufacturing sector, the dispensing robot arms apply adhesive sealants, coatings, and lubricants to components and surfaces. They ensure consistent application, reduce waste, and improve product quality.

In the healthcare industry, the automatic dispensing arms fill syringes with specific dosages of medications or vaccines. They support pharmacy automation and assist in compounding sterile products with precision and safety.

Manufacturers of beauty and personal care products use the robot to fill bottles and containers with precise amounts of liquids, creams, gels, and lotions. The device enhances accuracy and consistency in filling operations.

Some robots aid the packaging process. They dispense packaging materials like boxes, labels, and inserts at predetermined rates to streamline packaging operations and improve efficiency.

The scenarios for the dispensing robot arms are not limited to these industries. The versatility of the robots means that they can be integrated into any application that requires accurate dispensing of substances.

How to choose an automatic dispensing robot arm

Before purchasing an automatic dispensing robot, it's essential to understand factors such as needs, specifications, customization options, and after-sales support.

Consider the products and the application that needs dispensing. The nature of the products and the surfaces may determine the type and size of the robot that will work best. For instance, irregularly shaped items may need a customized robotic arm with a guided system to perform its duties effectively. Know the tasks the robot should carry out. Whether it's for precise adhesive application, sealant dispensing, or other materials may require different robotic arms.

Consider the materials to be dispensed by the robot and their viscosity, temperature, and chemical makeup. The material will determine whether a certain type of robot will be suited for the job at hand. Work area dimensions such as floor space, cell size, and workstation layout also affect the choice of the robot. The arm should fit in the workspace and its limited access areas. Also, consider the weight and dimensions of the products the robot will handle to ensure that the chosen robot can safely and efficiently manage them.

The dispensing task may require different payloads and reach lengths; hence, it's important to evaluate the required precision and accuracy to select a robot that can meet the desired tolerance levels. Choose a robot designed to provide reliable performance and minimal downtime based on its operating environment, such as cleanroom compliance, temperature, and potential hazardous materials in the surroundings. The robot chosen should be user-friendly, with intuitive programming and easy-to-understand interfaces.

Before deciding on a specific model, it's essential to review the technical specifications of several options. Consider their payload capacity, reach, precision, and programming environment to ensure they align with the project's requirements. Choose an automatic dispensing robot that can integrate with existing production lines and equipment. The robots may have varying power requirements, so it's essential to ensure that the facility's electrical system can support the chosen robot's needs. Consider the long-term cost implications of the robot, including initial investment, maintenance, and potential productivity gains.

Q & A

Q1: How safe are dispensing robots?

A1: Automatic dispensing robots are generally safe. The developers build them with multiple safety features. However, the actual safety will depend on installation, use, and maintenance.

Q2: Can robots do complex dispensing tasks?

A2: Some advanced dispensing robots can perform complex tasks like multi-product dispensing and precise quantitative dispensing. However, the capabilities will depend on the robot's design and configuration.

Q3: Do dispensing robots require special training for operation?

A3: Automatic dispensing robots come with user-friendly controls. So, they do not require special training for operation. However, a technician may be needed for maintenance and advanced programming.

Q4: How long can a dispensing robot work continuously?

A4: Many dispensing robots are designed for continuous operation. They can work continuously for 24 hours. However, they may need periodic maintenance and brief downtime for inspection and adjustments.