What are the different methods and techniques used for conveyor jointing

Introduction:

Conveyor systems are widely used in various industries for efficient material handling and transportation. One critical aspect of conveyor systems is the jointing of conveyor belts, as it directly impacts the overall performance and longevity of the system. In this article, we will explore the different methods and techniques used for conveyor jointing, discussing their advantages, disadvantages, and applications.

1. Mechanical Fasteners:

Mechanical fasteners are commonly used for conveyor jointing due to their simplicity and reliability. They typically consist of metal plates or clips that are attached to the ends of the conveyor belt. Some common types of mechanical fasteners include:

• Hinged Plate Fasteners: These fasteners consist of a series of interlocking hinged plates that are bolted to the conveyor belt ends. They provide a strong joint that allows for easy installation and maintenance.

• Alligator Belt Lacing: Alligator belt lacing involves the use of steel or stainless steel lacing plates that are inserted through the conveyor belt ends and then hammered or crimped to secure the joint. This method offers good strength and flexibility.

• Staple Fasteners: Staple fasteners use metal staples that are driven through the belt ends to create a secure joint. This method is quick and easy to install but may not be suitable for heavy-duty applications.

1. Vulcanization:

Vulcanization is a process that involves the application of heat and pressure to chemically bond the conveyor belt ends together. It is a popular method for joining conveyor belts made of rubber or other thermoplastic materials. The vulcanization process can be performed in several ways:

• Hot Vulcanization: In hot vulcanization, the belt ends are prepared by removing any damaged or contaminated material. Then, a heat-resistant adhesive is applied to the ends, and they are pressed together using a vulcanizing press. The heat and pressure cause the adhesive to cure, creating a strong and durable joint.

• Cold Vulcanization: Cold vulcanization is a similar process to hot vulcanization but does not require the use of high temperatures. Instead, a cold adhesive is applied to the belt ends, and they are pressed together using a cold vulcanizing press. This method is typically used for lightweight conveyor belts or when hot vulcanization is not feasible.

1. Mechanical Belt Fasteners:

Mechanical belt fasteners are another type of jointing method that offers flexibility and easy installation. These fasteners typically consist of metal hooks or loops that are inserted into the belt ends and then secured using a connecting pin. Some common types of mechanical belt fasteners include:

• Flexco Fasteners: Flexco fasteners use a combination of hooks, plates, and pins to create a secure joint. They are designed to withstand high tension and offer a reliable solution for heavy-duty applications.

• Clipper Fasteners: Clipper fasteners utilize a series of plates that are hinged together and secured with a connecting pin. They provide a strong joint and allow for easy belt installation and removal.

1. Adhesive Bonding:

Adhesive bonding involves the use of specialized adhesives to join conveyor belt ends together. The adhesive is applied to the belt ends, which are then pressed together to create a bond. Some key adhesive bonding techniques include:

• Solvent Cementing: Solvent-based adhesives are commonly used in conveyor belt jointing. The solvent softens the belt material, allowing for better adhesion when the ends are pressed together. This method is effective for thermoplastic belts.

• Two-Component Adhesives: Two-component adhesives consist of a resin and a hardener that are mixed together just before application. They offer excellent bonding strength and are suitable for a wide range of conveyor belt materials.

Conclusion:

Conveyor jointing plays a vital role in the performance and longevity of conveyor systems. Mechanical fasteners, vulcanization, mechanical belt fasteners, and adhesive bonding are some of the commonly used methods for joining conveyor belts. Each method has its advantages and disadvantages, and the choice of jointing technique depends on factors such as belt material, application requirements, and budget. Proper selection and installation of conveyor joints are crucial for ensuring reliable and efficient conveyor system operation.