Which is faster, the needle-type internal winding machine or the flyfork external winding machine?

When discussing the selection of winding machine equipment, we inevitably pay attention to the speed difference between the flying fork external winding machine and the needle internal winding machine and the reasons behind it. The following is an in-depth analysis of these two types of winding machines by NOYU, as well as the key factors to consider when choosing a winding machine.
 

I. Speed Differences and Their Roots

There is a significant difference in speed between the flying fork external winding machine and the needle internal winding machine. Generally, the speed of high-speed inner winding machines can reach 800 to 1,200 revolutions per minute (R.P.), while high-speed outer winding machines can easily break through the threshold of 2,500 R.P. This difference in speed mainly stems from the essential distinctions between the two in terms of winding methods and mechanical structures.

1. Needle-type internal winding machine: Specifically designed for stator products with inward-facing slots, it adopts a complex upper or lower outlining internal winding method. Under the control of the servo drive, the needle rod wire nozzle moves the enameled wire up and down, while the mold rotates left and right to ensure that the wire is neatly wound into the slot. This precise operation mode, although ensuring the accuracy of winding, also limits the increase in its speed.

2. Flyfork external winding machine: For stator products with outward slots, a simpler and more direct flyfork winding method is adopted. The rapid rotation of the flying fork drives the enameled wire to move along. Under the coordinated action of the stator rod, stator frame, die head and guard plate, the wire is neatly wound into the stator slot. This more concise operation process gives the flyfork external winding machine a significant advantage in speed.

Ii. Key Factors in Choosing a Winding Machine

When choosing a winding machine that suits our production needs, we need to comprehensively consider the following key factors:

1. Product Requirements: Clearly define the type, specification and quantity of the stator products to be wound. Different products may be suitable for different types of winding machines. For instance, stator products with inward-facing slots are more suitable for needle-type internal winding machines, while those with outward-facing slots are more appropriate for flyfork external winding machines.

2. Winding requirements: Select the appropriate winding machine based on the winding requirements of the product, such as wire diameter, number of turns, arrangement method, etc. For products that require multiple strands to be wound simultaneously, a winding machine that can support this function should be selected.

3. Production efficiency: While pursuing production efficiency, it is also necessary to ensure the stability and accuracy of the winding machine. If production efficiency is the top priority, then a faster flyfork external winding machine might be a good choice. If higher precision is required, then it might be more appropriate to configure a more precise needle-type internal winding machine.

4. Cost budget: Cost budget is also an indispensable factor when choosing a winding machine. Needle-type internal winding machines are usually of high configuration and relatively expensive. The flyfork external winding machine is relatively simpler and more affordable. Therefore, when the budget is limited, we need to weigh the relationship between performance and price and make a wiser choice.
 

To sum up, there are significant differences between the flying fork external winding machine and the needle internal winding machine in terms of speed, winding method and mechanical structure. When choosing a winding machine, we need to make a comprehensive consideration based on factors such as product requirements, winding requirements, production efficiency and cost budget, to ensure that the selected equipment can meet our production needs and bring good economic benefits.