Hemming Units Technical Summary

1. General Description

The document details specifications and components of hemming units, specifically the HPPC series. These units are designed to prevent double hits during operation and are compatible with drivers HPCDB and HPFCDB.

2. Dimensional Specifications

• Key dimensions include widths of 60±0.05 mm and 60±0.1 mm, overall width of 156 mm, and various lengths such as 285 mm and 164.1 mm.
• Other critical measurements include hole diameters (e.g., 2-φ13 E9), angles (12°), and depths (M12 depth 25 mm).
• Dimensions are provided for both right and left symmetrical sides.

3. Operation and Catalog Information

• Catalog numbers range from HPPC 40 to 140, with increments of 5 mm.
• Operation points are defined as A (Bottom dead center), B (Leaving from roller), C (Start of return), D (Completion of hemming), and E (Initial contact of roller).
• Values such as 129.2 mm and 25.0 mm correspond to specific operational positions.

4. Components and Materials

The components are numbered ① to ⑲ in the drawing, which depicts the right side; the left side is symmetrical.

5. Spring Force Characteristics

• Spring free lengths and initial lengths are provided, with corresponding tensile forces measured in Newtons (N) and kilogram-force (kgf).
• Example values include free lengths of 138.0 mm and 148.0 mm, initial lengths of 97.5×2 mm and 148.0×2 mm, and tensile forces ranging accordingly.

6. Notes and Recommendations

• Dimensions in parentheses are subject to change depending on length (L).
• Ensure correct selection of right (R) or left (L) units based on application.
• Use the specified materials for components to maintain durability and performance.