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The conveyor belt joint splicing hot melt press (also known as the conveyor belt hot press splicing machine) is a specialized equipment for achieving hot melt splicing of joints of PVC/PU/PE and other plastic light conveyor belts through high temperature + pressure + cooling. It can also be used for the vulcanization splicing of some rubber belts to ensure that the joints are flat, firm and durable.
I. Core Uses and Compatible Scenarios
- Application: To achieve seamless hot-melt splicing of conveyor belt joints, replacing traditional bonding/mechanical joints, enhancing the strength and lifespan of the joints, and reducing operational noise and material jamming.
- Compatible with: Lightweight plastic conveyor belts such as PVC/PU/PE; Some rubber belts can be adapted through vulcanization modules. It is applicable to factory mass production or on-site construction in industries such as food, logistics, electronics, and packaging.
Ii. Core Structure and Key Components
- Heating system: Double heating plates (aluminum alloy/stainless steel) at the top and bottom, ensuring uniform temperature and precise temperature control (accuracy ±0.5 to ±1℃). The heating temperature is generally adjustable from 0 to 200℃.
- Pressurization system: Airbag/cylinder/hydraulic pressurization, adjustable pressure from 0 to 8 kg/cm², ensuring tight joint fusion.
- Cooling system: Water-cooled/air-cooled rapid cooling (5 to 8 minutes), preventing joint deformation and enhancing efficiency.
- Control system: Automatic temperature control box, which can preset parameters such as heating, constant temperature and cooling, and supports automated cyclic operation.
- Body: Modular high-strength aluminum alloy/stainless steel, lightweight and easy to move. The hot-pressed plate length is available from 200 to 4000mm, suitable for different bandwidths.
Iii. Work Process (Standard Hot Melt Process)
1. Joint treatment: Cut straight at the Angle, drill teeth/shave edges, clean and degrease.
2. Preheating and shaping: Set the temperature and pressure, preheat the heating plate, and align and position the joint.
3. Hot melt pressurization: Heat to the melting point of the material (approximately 100 to 170℃), apply pressure to melt and bond the joint, and maintain heat and pressure.
4. Cooling and demolding: Rapidly cool and solidify, release pressure and open the mold to complete the assembly.
Iv. Core Advantages and Key Parameters
- Advantages: High joint strength (up to over 90% of the belt body), smooth without steps, stable operation, and long service life. Automatic control, convenient operation, suitable for on-site and factory scenarios.
Key parameter reference: Heating time 25 to 45 minutes per time; Cooling time: 5 to 8 minutes each time. Temperature accuracy: ±0.5 to ±1℃; Pressure: 0-8 kg/cm² The width of the hot plate is 180 to 252mm, and the length can be customized as required.
V. Key Points for Selection
- Bandwidth and thickness: Match the length of the hot plate with the heating power.
- Material: For PVC/PU, choose conventional hot-melt modules; for rubber belts, choose vulcanized modules.
For fixed workstations in factories, large hydraulic models can be selected. For on-site construction, lightweight pneumatic or modular models are preferred.
- Temperature control accuracy: For high-precision scenarios such as food and electronics, select the ±0.5℃ model; for general scenarios, ±1℃ is sufficient.
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