Knowledge

Introduction for Arrow Star Fully Jacquard Shoes Upper Knitting Machine

    一、   Introduction

Automatic fully jacquard shoes upper knitting machine refers to a type of equipment that can automatically knit shoe uppers with jacquard patterns. It integrates advanced technologies and has the characteristics of high efficiency and high precision. Here is a detailed introduction:

1.      Main Structure and Working Principle

1)      Knitting Mechanism: It usually consists of components such as needle beds, needles, sinkers, and yarn feeding devices. The needles move under the control of the cam system to complete actions such as looping, purling, and pattern formation. The sinkers assist in shaping the loops and ensuring the stability of the knitting process.

2)      Control System: Equipped with an advanced computer control system, often with an LCD touch - screen and a graphical interface. For example, some machines support USB and network connectivity, with an expandable memory of up to 1G. This allows users to store and call a large number of patterns according to production requirements and update the design and control software for free.

2.      Technical Parameters

1)      Gauge: Common gauges include 12G, 14G, and 16G. The gauge determines the fineness and density of the knitted fabric, and different gauges are suitable for different types of shoe upper materials and styles.

2)      Knitting Width: There are various specifications such as 36 inches, 52 inches, 56 inches, and 60 inches. Different knitting widths can meet the production needs of shoe uppers of different sizes and styles.

3)      Knitting Speed: The speed is usually adjustable. For instance, some machines have 32 speed settings, with a maximum speed of up to 1.2m/s. The speed is controlled by an AC servo motor, which ensures the stability and accuracy of the knitting process.

4)      Yarn Feeding System: Generally, it is equipped with multiple yarn carriers. For example, some machines have 4 guide rails with 2×8 yarn mouths, which can move to any position on the needle bed. This enables quick color changes and complex pattern knitting.

3.      Knitting Functions

1)      Pattern Knitting: It can perform various pattern knitting functions, such as jacquard, tuck, transfer, eyelet, plain decrease, hidden decrease, and other regular and irregular pattern knitting. These functions enable the production of shoe uppers with rich patterns and textures.

2)      Special Functions: Some machines have special functions like adjustable tuck, which can adjust the tightness of the tuck stitches, and the triangle composite design, which allows for single or simultaneous transfer, improving production efficiency.

4.      Protection and Monitoring Systems

1)      Protection System: When problems such as broken yarn, knot, floating yarn, reverse winding, end of piece count, unreturned bed shift, needle collision, or program error occur, the machine's alarm system will be activated, and a safety automatic locking protection device will be set to prevent damage to the machine and the knitted product.

2)      Monitoring Display: During the operation of the machine, it can display various operation parameters at any time, such as knitting speed, stitch density, and yarn feeding status, and can be adjusted to make the operation more convenient and time - saving.

5.      Application Scope

1)      Shoe Upper Production: It is mainly used for the production of various types of shoe uppers, including sports shoe uppers, casual shoe uppers, and dress shoe uppers. It can knit shoe uppers with different materials, such as flying - knit uppers, which are lightweight, breathable, and comfortable.

2)      Other Knitting Products: In addition to shoe uppers, some machines can also be used to produce other knitted products, such as sweaters, and gloves.

二、     Model of Arrow Star Shoes Upper Knitting Machine  

l  36inch, three system      AS36-3S

Width & Capacity: 36-inch (914mm) knitting width typically produces one pair of shoe uppers per cycle, optimized for standard or smaller shoe sizes.

Efficiency & Precision: While offering the same 3-system speed advantage for complex knitting (jacquard, intarsia, transfer), its narrower width provides greater precision for smaller-sized uppers and reduces material waste for specific designs.

Applications: Ideal for producing children's shoes, women's shoes, or specific styles of men's shoes where a narrower width is sufficient, offering a balance of efficiency and material economy.

l  52inch, three system    AS52-3S

Width & Capacity: 52-inch (1320mm) knitting width allows for producing 1-2 pairs of shoe uppers per cycle, suitable for a wide range of shoe sizes (e.g., EU 36-46).

Efficiency: The 3-system configuration enables parallel knitting of three yarn feeds simultaneously, offering significantly higher daily output compared to single or dual-system machines, ideal for mass production.

Applications: Best suited for manufacturing uppers for sports shoes, casual shoes, and running shoes that require large width, complex 3D shaping, and intricate multi-color jacquard patterns.