Carton ejectors, broadly speaking, belong to the same product category as carton sealing machines. However, their structures are quite different, with the chain structure being the most obvious difference. Conventional carton sealing machines do not have a chain, while carton ejectors do, located in the hopper area. Since a chain is present, lubrication becomes crucial. What are the precautions for lubricating the chain of a carton ejector machine?
- The chain lubricant should be selected for low-power transmissions, where sealing is not tight, and speeds are less than 200 m/min.
- The chain lubrication method can be selected based on the sprocket diameter and rotational speed, as shown in Figure 3-110.
- Good penetration ability is essential; the lubricant should penetrate into the friction points of each chain link, forming a boundary film and reducing wear.
- The chain requires lubrication regardless of its location, but there are differences between low-speed and high-speed applications. For low-speed applications, No. 30 machine oil is primarily used.
- It should have good antioxidant stability and should not accelerate oxidation and form oxides when in contact with air during operation.