How does Sewing Machine work?? The Detailed Guide

Sewing Machines are the ones that are specifically designed to reduce the manpower and time consumption. Nowadays one cannot even imagine having lived without sewing machines. Those play a vital role in the routine of human beings. Sewing Machines are tireless working equipment provided with sharp needles sewing by moving up and down holding two threads one from the top and another from the bottom.

  • Interlocking stitches are made possible with the help of modern sewing machines. You can have a variety of clothes both western and casual outfits in your wardrobe stitched sticking to the latest trends and fashion ideas.
  • Artistic and creative dresses can be made by the arrival of advanced sewing machines now. Let us have a broader look at the process of sewing and how a sewing machine works.

How sewing Come about in a Sewing Machine??

To start with the sewing operation in the machine you need to know about the components incurred in the operation. The main components are needles, Bobbin, Threads, and adjusting knobs. In the last century, people tend to use back and forth technique in making stitches that are famously known as Running Stitches. By having those stitches you can sew two materials together. Lengthy cotton threads must be employed in stitching operation. To match with both sides of the cloth two different colors of thread can be adopted bobbin holding one thread and needle employs one thread. You can use the same procedure for even repair works and all.

Functional Process of Hand Sewing Machine:

To proceed with the functioning you need to pull hard the needle right through to make it move it along the, to be stitched material moving back and forth. First, you need to move it forward then impulse it back over the material in the straight opposite direction thereby parting a certain amount of the thread behind. For Hand Sewing operation you can solely use single colored thread in upper and lower parts moving through the material.

The needle keeps on rising up and down all through the process of finishing the intended stitches. Normally the needle pokes down the thread present in the bobbin and then gets it back to the top and the process continues. By having the process continued alternate stitches can be made easily.

Main Components of Sewing Machine:

A sewing machine is composed of enormous components arranged into it. Only the visible components can be enumerated and discussed.

Let us see the key components below:

  1. Sewing Needle with a slot present for accompanying thread
  2. Adjusting knobs for tightening and loosening of needle
  3. Pedal Foot underneath for pressure exertion
  4. Drawer holding bobbin
  5. Length adjustment Knob
  6. Electrically driven Motors
  7. Hand operated wheel for precision control
  8. Stitch Length adjusting knob
  9. Tension controlling Thread
  10. Selector for the type of stitches

Working Secret behind the Sewing Machines:

  1. Common and adoptive Secret behind the working of sewing machines is that they work uniquely and differently no one can imagine using unlike mode of stitches with totally different and separate colored threads, one served in the upper part from the needle and the second one obtained from bobbin below which is normally termed as a shutter.
  1. Bobbin needs to be inserted with the outer shell or clamp with a sufficient amount of thread rolled without gaps and discontinuities. Best stitches will be obtained possibly only if the thread is wind correctly in an anticlockwise direction. Leave some thread outside the bobbin cover to make the pulling process so easy by the needle and the extended hook.
  1. The needle with the thread in the upper end pushes the thread present in the bobbin through the fabric thereby forming a coil or loop that intends to clasp the hook tightly.
  1. The loop covers all around the thread from bobbin as the needle jerks the succeeding unit of thread back up through the fabric that is placed for repair or alteration.
  1. The needle is repeatedly suckling the thread down through the fabric to produce consecutive stitches.
  1. Here we are using two types of threads forming stitches of loop basis alternatively which are commonly termed as lock stitches whereas in normal cases single thread alone is preferred.

For What Purpose Sewing Machine is intended?

  1. Normal Hand Sewing Machines - Everyone terms a sewing machine that is intended for just sewing. But that is not an accepted fact about the sewing machines. But the construction behind the machine is deep and innovative. A hand-operated lever is present in the upper part of the machine that helps the needle to move back and forth. Handwheels are present to stimulate the running operation ad it is generally designed with belts and gears for adjustment of speed. Moving speed is accelerated by the handmade wheels.
  1. Anterior Sewing Machines - Old fashioned sewing machines are slow and they can be operated only using hands and pressure exerted by the legs in the pedal present below. Nowadays the technology is so emerging bringing out electrically-driven motors that are hefty by nature.
  1. Trending latest Sewing Machines - New modern equipment using hefty motors helps in stitching thick and multiple fabrics placed in several layers. Needle constantly moves up and down carry thick stitches over the fabric. Even thick curtains and bedspreads can also be stitched using electric sewing machines. The electric motor is the core component of modern sewing machines which is placed inside the main stem. Electric motors are composed of varying speeds and specifications. These electric machines eliminate human power and energy consumption. Manual effort is highly reduced and you can save a lot more time consumed in sewing operation.

Illustration of interior Mechanisms in the Modern Sewing Machines:

A sewing machine is normally composed and packed with so many moving parts arranged and altogether in a confined space. The interior mechanism is quite difficult to understand and the specifications are highly simplified. The electric motor is seated in the lower portion of the machine edging from the needle. The handwheel is present in the upper part of the machine hold firmly with the rubber tiers rounded over it. The arrangement exactly resembles the pulley set up that helps the needle to move up and down slowly. Below are the key mechanisms incurred in the sewing machines? All the parts of the sewing machine are designed specifically to carry out designated operations precisely.

  1. The mechanism behind the working of Needle–Mechanism of Needle is the simplest of all the three processes. A shaft is present in the wheel that helps the needle to move up and down without flaws. Reciprocal motion is stimulated by the electrically driven motors present in the shaft. The set-up is entirely similar to the pulley operation that is driven with belts helping the shaft to rotate completely in an upward and downward direction.
  2. Mechanism of Bobbin–A shuttle is provided along with multiple hooks that intend to make stitches emerging from the needle. Thread is inserted in the needle which moves faster than the needle in all the aspects and it helps the shaft to turn quickly using multiple gears. Pulleys of different and varying sizes are employed to get complete wrap-up.
  3. Moving Back and Forth operation–Fabric that is placed for stitching will move in forward and backward directions with constant and slow speed always. Stitches from both sides are to be held in equal length. Interlinking operation is inherited in this mechanism which employs an oval-shaped wheel that extends a lever to move upwards and downwards. By this arrangement, the moving process is made easy and stable. The crank mechanism is also further employed to have synchronized operation. The pedal which is present in the shoe side helps the movement conveyed through a rubber belt that is rolled over the hand-operated wheels of small and big sizes respectively. When the pedal is stimulated you can have the stitches placed over the fabric and all the entire components are interrelated to one another. If the pedal is stopped the entire operation will be stopped.

How Stitches are made in Sewing Machine?

  • Sewing Machine generally runs by coordinating all three important mechanisms. By having so you can get continuous and perfect sized stitches you are exactly looking for.
  • The thread which is present in the upper needle is said to be needle thread whereas the thread which is present in the lower bobbin which is termed as bobbin thread.
  • When the pedal is pressed by the foot or the operation is initiated by the handwheels, the process starts and the fabric starts moving front and back.
  • When the process is initiated the needle gets the thread from the bobbin and both the threads start interlocking each other and make stitches over the fabric.
  • Needle thread exerts sufficient tension to avoid excess pulling of threads from both the places.

How to get lock Stitches with two different threads?

Once the Handwheel is rolled, needle tends to get inside the material holding the needle thread along with it and by the help of hook present inside the machine bobbin thread gets clamped in the hook and they both help in the formation of lock stitches one in the upper side and another one in the lower side. By doing so the needle tends to move up and down holding both the threads leaving interlocking stitches continuously over the fabric. Loop is continuously formed over the stitches to catch the pins exactly. The process needs to be continued until the stitches are completed. You will have a tight and proper stitch locked together completely if everything is fit appropriately.

Types of Stitches put forth in the Modern Sewing Machines:

Loop Stitches:

Hand sewing and machine sewing is not always the same. The process entirely differs from each other. In normal hand sewing, you will have stitches in the fabric obtained through inserting the thread in the needle hole from one side and it will create stitches formed in a loop. The stitches will be carried forward all through the material with the help of a needle to complete the stitching process. But the working nature of sewing machines is completely different and unique. When the motor is switched on, the machine starts running keeps the needle move up and down holding the threads to move through the fabrics. Gears are employed in the motors to control the motion speed and enhancements to a certain extent. The loop is continuously formed by the chain action pulling the fabric constantly.

Chain Stitches:

The easiest form of stitch that is available in sewing operation is the chain stitch. To have this stitch attained the fabric needs to be placed on the seat by pressing the underneath pedal or footer. In every form of stitch, a loop will be formed initially. When the needle starts moving further to have another loop the previous loop will enter the middle one and the mechanism continues till further loop is created by the needle. The stitches in the fabric look like a continuous chain and the stitches are further termed as chain stitches. Naming reason stands with the appearance of the stitches.

Interlocking Stitches:

The most commonly used strongest form of stitch that is employed by power motors in the sewing machines is the interlocking stitches or lock stitches. The stitch is somewhat similar to the chain stitch. But the process differs from normal chain operation. In this case, bobbin exerts more thread when compared to other forms of stitches. To have this type of stitches bobbin and shuttle are important components to be taken care of. The available thread in the bobbin is constantly distributed through the needle driven by electric motors to the placed fabric. Motors are driven by the continuous power supply. Needle pulls the thread underneath and gets it mingled with the needle thread to have interlocking stitches formed in the fabric. The loops are exerted from the bobbin and the stitches are laid strong in the fabrics.

We will be happy to hear your thoughts

Leave a reply