Analysis Of The Main Technical Parameters Of The Paper Insertion Machine And Their Influencing Factors

The paper insertion machine is a key equipment in the production of motor stators. It is used to automatically insert insulating paper into the slots of the stator core to isolate the coil and the core, prevent electrical short circuits and improve insulation performance. Its performance directly affects the quality and production efficiency of the stator, so it is crucial to understand the main technical parameters of the paper insertion machine and its influencing factors. This article will start with the technical parameters to analyze its role and related influencing factors.

Main technical parameters of the paper insertion machine

1.   Paper insertion speed  

-   Definition  : refers to the number of slots that the paper insertion machine inserts insulating paper per minute or per second, usually in "slots/minute" or "slots/second".

-   Typical value  : 60-120 slots/minute for ordinary models, and more than 200 slots/minute for high-speed models.

-   Function  : Determines production efficiency and is the core indicator for measuring the performance of the paper insertion machine.

2.   Applicable stator size (Stator Size Range)  

-   Definition  : The range of stator outer diameter, inner diameter and stacking thickness that the paper inserter can handle.

-   Typical value  : outer diameter 50-200mm, stacking thickness 20-150mm (depending on the machine model).

-   Function  : Reflects the applicability of the equipment and determines whether it can adapt to stators of different specifications.

3.   Number of Slots Range (Number of Slots)  

-   Definition  : The range of stator slots that the paper inserter can handle.

-   Typical value  : 8-72 slots (adjusted according to the motor type).

-   Function  : Affects the compatibility of the equipment with different motor designs, such as the difference in the number of slots between small motors and large motors.

4.   Insulating paper width and thickness (Paper Width and Thickness)  

-   Definition  : The range of insulating paper sizes that the paper inserter can handle.

-   Typical value  : width 10-50mm, thickness 0.1-0.5mm.

-   Function  : Ensure that the insulation paper matches the stator slot, affecting the insulation effect and insertion accuracy.

5.   Positioning Accuracy  

-   Definition  : The position deviation of the paper inserter inserting the insulation paper into the slot, usually measured in millimeters or microns.

-   Typical value  : ±0.1mm or higher accuracy.

-   Function  : Determines whether the insulation paper completely covers the inner wall of the slot, which directly affects the electrical safety of the motor.

6.   Power and Energy Consumption  

-   Definition  : The electrical power and energy consumption level required for the operation of the equipment.

-   Typical value  : 1-5kW (depending on the size of the machine).

-   Function  : Affects the operating cost and energy planning of the production line.

7.   Machine Size and Weight  

-   Definition  : The overall dimensions and weight of the paper inserter.

-   Typical values  : 1.5-2m long, 1-1.5m wide, 500-1000kg heavy.

-   Function  : Affects the layout and installation difficulty of the equipment in the production line.

Factors affecting technical parameters

1.   Mechanical structure and drive system  

-   Influence  : The paper insertion speed and positioning accuracy are highly dependent on the performance of mechanical components (such as servo motors, guide rails) and the transmission system. High-precision servo motors can improve speed and stability, while low-quality components may cause jitter or deviation.

-   Example  : Paper insertion machines driven by linear motors are faster and more accurate than traditional stepper motor models.

2.   Control system  

-   Influence  : The response speed and programming ability of the PLC or CNC system directly affect the paper insertion speed and flexible production capacity. Advanced control systems can realize real-time parameter adjustment to adapt to different stator specifications.

-   Example  : A control system that supports multi-axis linkage can improve the insertion efficiency of complex slots.

3.   Insulating paper material and pretreatment  

-   Influence  : The hardness, thickness and surface friction coefficient of insulating paper will affect the smoothness and accuracy of insertion. Paper that is too hard or too thick may cause paper jams, and paper that is too thin may tear easily.

-   Example  : Pre-folded insulating paper is easier to insert than flat paper, reducing the difficulty of equipment adjustment.

4.   Complexity of stator design  

-   Influence  : The shape of the stator slot (such as open slot or semi-closed slot), slot depth and number of slots will affect the difficulty of paper insertion and the applicability of the equipment. Complex slot types may require higher precision tools and slower insertion speeds.

-   Example  : The high slot fill rate design of new energy vehicle motors requires higher precision for paper insertion machines.

5.   Environmental conditions  

-   Influence  : Temperature, humidity and dust levels will affect the stability of equipment operation. For example, high humidity may cause the insulating paper to become damp and deform, reducing the success rate of insertion.

-   Example  : Paper insertion machines operating in a constant temperature and humidity workshop have more stable performance.

6.   Maintenance and operation level  

-   Impact  : Regular lubrication of equipment, degree of tool wear and operator proficiency will affect long-term performance. Lack of maintenance may lead to reduced speed or increased failure rate.

-   Example  : After tool wear, uneven cuts of insulating paper may increase the risk of paper jams.

Summary

The main technical parameters of the paper inserter (such as paper inserting speed, application range, positioning accuracy, etc.) are key indicators to measure its performance and are directly related to production efficiency and stator quality. These parameters are affected by multiple factors such as mechanical structure, control system, material properties, stator design and external environment. In actual applications, manufacturers need to select appropriate models according to production needs and optimize relevant conditions to give full play to the role of paper inserters in motor stator production. With the development of automation technology, the parameters of paper inserters will be further improved to provide stronger support for intelligent manufacturing.