Tips for Minimizing Interruptions of Coiling Embroidery Machine

Have you ever come across the situation that the embroiderer suddenly interrupted and didn’t work? Are you at a loss what to do when facing this problem? Today we will talk about this topic and try to help you to solve problems. The most common causes of a coiling embroidery machine interruption include: 1) Needle Thread Breakage or Pull-out – not picking up at the beginning of a stitch pattern; 2) Bobbin Thread Run-out or Thread Pick-Up – not picking up at the beginning of a stitch pattern; 3) Improper Thread Trimming; 4) Thread break detector stoppage

In order to minimize sewing interruptions during the stitching of complex embroidery patterns, you can deal with it form the aspect of the machine itself. The causes will be stated as follow:

1. Lack of preventive maintenance. This will be performed in the following two aspects: excessive lint and dirt in the machine and machine needing to be lubricated.

2. Worn machine parts. For example, normal wear and tear of sewing machine, burr on hook, bobbin plate is scratched and the needle hole in needle plate enlarged causing excessive flagging.

3. Machine thread tensions not set correctly. On one hand, it is because tension too tight for the thread and application, on the other hand, tension too loose not allowing the machine too pull the stitch up properly causing a “birds-nest” of excessive thread.

4. Machine out of adjustment -- needle bar height; hook settings – timing and position to needle; foot or counter-presser not set correctly; take-up spring not set correctly.

5. Thread trimmer. To be specific, trimmer not cutting cleanly; tension release not working properly causing the thread to pull back out of the needle when the thread is trimmed; and thread caught in trimmers.

To solve the problem, you could read the following tips:

1. Develop a good preventive maintenance program

1) Blow-off the machines everyday.

2) Make sure the machines are properly lubricated on a regular basis.

3) Pull machines out of production to inspect the machines on a regular basis.

2. Make sure the Embroidery Machines are adjusted properly

1) Correct needle bar height

2) Proper hook settings – Timing and position to needle

3) Make sure the needle centers in the counter-presser (foot) and it is adjusted the correct height to minimize flagging.

4) Set the Take-up Spring so that it is working properly

3. Make sure the Thread trimmer is operating properly

  1) The trimming knifes and sharp and trim the needle and bobbin thread cleanly.

2) The tension release mechanism is working properly so a needle thread tail is left allowing it to be picked up at the beginning of the next stitching cycle.

Chopsticks Machine – A Creative Invention to Our Life

When it comes to chopsticks, everyone will be very familiar with them, for we are using them everyday as an eating instrument. Chopsticks may be made of any of several materials such as bamboo, wood, gold, silver, ivory, pewter, and plastics. In cross-section, they may be either round or square. Some of them are engraved with colored pictures or pattern for decoration. Since chopsticks play a significant role in our daily life, the equipment to produce them – chopsticks machine deserves much of the credit.

Chopsticks are definitely the symbol of Chinese food culture. On the dining table, almost everything is picked up and brought to mouth by using them (apart from soup). From picking up the rice from the bowl, every piece of food on the plate, to picking the small tiny bones from the fish or eating half meter long noodles, or even cutting off some piece into half; all can be done by chopsticks. So the traditional way of laying the table is always having a pair of chopsticks along with a spoon placed next to the rice bowl, no knives, and definitely no forks.

We normally start using chopsticks at very early age, and then you would develop your own habit to hold them. Different people would hold chopsticks differently. Normally we hold the pair in the hollow between the thumb and forefinger of your fork hand. The one closest to your body should rest on the first joint of the ring finger and stay with the forefinger and middle finger, which manipulate it like pincers to pick up the food. The strength applied by the fingers should vary with the things to be taken hold of. Chopsticks generally should be held at the thicker end about a third along their length for balance and efficiency. For greater reach to pick up food further away, hold the chopsticks at the upper ends.

We Chinese attach great importance to the way we eating food, or you can say eating courtesy in our food culture, so you must know some dos and don’ts when eating. For example, you should not point the chopsticks on someone because it is discourtesy; never spear or poke food with the tips of the chopsticks because it is rude behavior; if you need to rest your chopsticks, leave them on the chopsticks rest or by the side of your bowl or plate, and do not stick them into your food, especially not into rice.

As a part of our food culture, chopsticks machine also contributes a lot. It produces various kinds of chopsticks for our choice and enriches our table or dishes.

4 Efficient Methods to Improve Wire Machine Productivity

Wire machines can work automatically to produce wires, which takes some of the burden off human workers and saves much time. But most users still care about how to improve the productivity of the wire mesh machine to maximize their profits. Here we offer you the following tips.

Method 1: Always run the maximum wire tension

High wire tension is necessary to maximize accuracy. In single pass cuts, high wire tension will reduce corner error, belly, vibrations and deflections of the wire induced by flushing forces, especially in tall work pieces. In skim cuts, high wire tension assures maximum precision. However, not all jobs are +/- .0002” tolerance. For the numerous jobs with more relaxed tolerances, such as +/- .001” or larger, a lower level of wire tension will allow the machine to cut faster.

Method 2: High tensile wires are required for fast cutting

Many people think that a higher tensile wire will better resist breaking in high performance cutting than a “softer wire”. In many instances, this is simply not true, and in fact, quite the opposite. How much tensile strength do we really need? A .010” wire with a tensile strength of 900N/mm2 will support a static tensile load of 4,500 grams!

The most significant factor in wire breakage is not the tensile load on the wire, but the flaws created by the sparks which attack the wire’s cross-section. Extensive wire testing has demonstrated that half hard wires will cut significantly faster than full hard wires of the same type.

Method 3: A larger wire always gives more economical performance

Many users today are running .012” wire in their machines to increase cutting speed. Some machines even utilize .013”, .014”, and even .015” wires to obtain record breaking performance. However, in many cases, .012” wire is not necessarily the best choice. Because a larger diameter wire, along with its associated higher current levels, will typically leave more corner error than a smaller diameter wire; and results in more cutting debris, a combination of work piece and wire material; it normally also result in reduced power feed contact life.

Method 4: The fastest cutting rate means the shortest cutting time

It is common to see a wire machine operator “fiddling” with the cutting parameters to get the last bit of speed out of the process, only to have the wire break ten minutes after he leaves for the night, thereby losing a whole night’s burn. But most night burns don’t burn all night, so what difference does it make whether the cut finishes at 2:00 AM or 6:00 AM, as long as it’s done when the 1st shift arrives. However, if the wire breaks and the job doesn’t finish, not only are the nighttime hours wasted but the subsequent daytime schedule is blown also. Reliable unattended burning is always more productive than unreliable attended fast burning!

Several Secrets of the Wire Machine Product

Now days, wire products like welding electrode, weld mesh, heat treated kitchen baskets, automobile spark plugs and exhaust valves etc. For manufacturing all above products, wire is used as primary element and is to be processed to different sizes, shapes and lengths. For these sequential operations, wire machine is used.

Wire mesh machine automates many of these wire making processes, taking some of the burden off human workers. The device can be automatic or semi-automatic type which provides precise wire and cable cutting. The machine has benefited a lot from some substantial technological advancement recently, and they can be a boon to anyone who does this kind of work.

The primary function of any wire processing machine is cutting cable. When you have thousands of cables to cut to specific lengths, a programmable cable cutter is a godsend. Just program in the number and length of cables you want cut, insert the free end of the spool or feed box into the machine, and watch it go to work. This equipment works by feeding the wire in on a reel, marking the wire with inkjet or hot stamp printing mechanism then cuts and coils the finished product on another reel or stacks it in a guide channel. For cutting insulated cable, it also often includes a slitting or stripping machine which slits open the cable insulation without damaging the cable's shielding.

In addition to cutting, wire processing machines are also capable of straightening, stripping, crimping, terminating and labeling cable and connectors of all types. Straightening is the apparent elimination and removal of stresses induced into the material to be straightened during its manufacture due to force and torque related influences. This applies to wire straightening, tube straightening, cable straightening, strip and profile shape straightening.

The roll straightened, consists of a series of rolls that are offset and which bend the wire beyond the elastic limit a number of time in two or more planes as the wire runs through. The rolls are adjustable and the straightness obtained depends upon the skill of the operator making the adjustment. This method is generally restricted to shaped wires such as hexagons, squares and flats except for minor straightening of round wire for removing coil bow before further forming.

Any electrical professional knows just how much of a pain these jobs are. Time consuming and often repetitive, these tasks have been ripe for automation for years, and modern wire machines have stepped in to fill the role.

How Does a Straight-Line Wire Machine Work?

Straight-line wire machine is widely used to extend wires from a roll or coil in order to straight and to cut. The machine is offered with extensive features requiring diverse applications. Some machines are configured for straightening and cutting all kinds of cold drawing wires and other nonferrous metal wires. They may cut the wire as per requirements in the required dimension and thereafter, work continuously.

These wire mesh machines are complied with three different processes such as feeding, straightening and cutting off. These machines are available with various features such as different diameter size wires for straightening, different cutting lengths and standard multi-power motor for both straightening and cutting of wires.

The machine has basic parts like paying off, feeding, straightening and cutting head with cutting off unit.

In paying off unit, the wire may be paid off from a process such as a draw block or by more usual method employing a reel. Reel may be vertical or horizontal spindle. The vertical spindle should be used for wires up to approximately 2 mm to 4 mm in round.

In feeding unit, feeding of the wire is usually done by grooved feeding rolls or “pinch rolls”. This mechanism is power driven and pinches or squeezes the material so that the wire is either pulled and/or pushed through the machine. The feeding pressure to the rolls can be applied by hand through cams or spring.

The roll straightened, consists of a series of rolls that are offset and which bend the wire beyond the elastic limit a number of time in two or more planes as the wire runs through. The rolls are adjustable and the straightness obtained depends upon the skill of the operator making the adjustment. This method is generally restricted to shaped wires such as hexagons, squares and flats except for minor straightening of round wire for removing coil bow before further forming.

“Cutting off” or shearing process is followed by the straightening process. There are two general classifications of cut off mechanisms; one being the stationary shear where in the wire is actually stopped during the cutting cycle, and the other the “travel-cut” or flying shear in which the shearing mechanism moves along with the wire during the cutting cycle. The flying shear cut off is superior to the stationary shear type; for many applications using soft wire or small diameters. However, the stationary shear will give satisfactory results. When running hard wire or alloy through a high speed rotary arbor, flying shear is necessary, since if the wire were stopped for cutoff in the arbor, it may become overworked and overheated and break could result.