Leather sewing machine

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  • Sewing is a delightful and creative hobby that allows individuals to express themselves through fabric and thread. One of the tools that can elevate your sewing projects is a double needle. This special needle allows you to create two parallel rows of stitching simultaneously, enhancing the visual appeal of your work, particularly for hems and decorative stitches. In this article, we will explore how to use a double needle effectively on your sewing machine.


  • - Type of Overlocker There are various types of overlockers, such as 3-thread, 4-thread, and 5-thread machines. The choice depends on the type of sewing projects you intend to undertake. For example, a 4-thread overlocker is suitable for most fabrics and provides a good balance between speed and stitch quality.


  • 1. Precision and Control One of the primary advantages of a manual leather sewing machine is the level of control it offers. Unlike their electric counterparts, manual machines allow for a slower, more deliberate sewing pace, which is particularly beneficial when dealing with thick or heavy leather. This ensures that each stitch is executed perfectly, essential for maintaining the aesthetic and structural integrity of the leather product.


  • Another advantage is the aesthetic quality that double needle machines provide. The parallel lines of stitching can create a decorative effect, adding style to products while maintaining functional integrity. This ability to enhance the visual appeal of garments is particularly important in an industry where first impressions are crucial.


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  • galvanizing

  • First of all, we need to understand that the electrical conductivity of the wire depends on its material and size, and is not affected by the surface treatment method. Whether galvanized treatment or wire drawing treatment, they are the surface of the steel wire treatment, will not change the basic physical properties of the steel wire, electrical conductivity will not be affected. Therefore, in theory, the galvanized wire drawing treatment should not have any effect on the electrical conductivity of the steel wire.

  • Galvanized wire coating has galvanized, aluminum, nylon or plastic coating. Zinc plating is divided into thin coating after steel wire plating and thick coating after steel wire drawing. The mechanical properties of thick coating are lower than that of smooth steel wire rope, and it is suitable for use in serious corrosive environment. Aluminized wire rope it is more resistant to corrosion, wear resistance, heat resistance than galvanized wire rope, using the method of production after the first plating. The wire rope coated with nylon or plastic is divided into two kinds: coated rope and coated rope.

  • galvanized

  • Stainless steel barbed wire in the way of corrosion is not too, because the surface is not treated but rely on its own raw materials for corrosion resistance, so there will be no chemical reaction.

  • 3, with oil cloth (oil used cloth), carefully from inside to outside, including each cage wire repeatedly grinding many times. The front of the bird cage, the door flowers, where vision is often in place, are repeatedly rubbed in order to improve the surface finish, equivalent to “grinding”. Note: door flowers, arhat lines and other structures are delicate and fragile, do not break. This process, which requires time and patience, care, is also a process of observing and appreciating the cage. Use new cloth again, according to the above process, wipe again and again. This process is equivalent to polishing. For important parts, you can use a little force, the speed can be a little faster (do not use force). Be careful to fold the cloth neatly, otherwise marks will easily form. When this process is complete, the surface finish is significantly improved.

  • Post time: 26-07-22

  • iron

  • 2, oil: it is recommended to use cloth (there is a kind of textile cloth for polishing glasses, do not knit, because the nap is easy to fall off), oil to the inside and outside of the cage. The amount of oil is not much, because the bamboo material is old, density and hardness are relatively high.

  • 2. Eliminate the caked zinc residue at the zinc liquid surface

  • wire

  • steel

  • Many luxury cat, dog, parrot, bird and flock cages use square iron tubes. Luxury cage using iron square tube is generally as a cage body frame, and then on each side of the welded iron wire. Square tube cage is characterized by more beautiful shape design, cage body more solid, more surface treatment methods.

  • The wire rod should be normalized or soxhlet processed, instead of spheroidal annealing for standard large ones. Soxhlet process is widely used in the heat treatment of the center, especially the products before drawing. Avoid decarbonization during heat treatment. After heat treatment, sulfuric acid or hydrochloric acid pickling is used to remove iron sheet. The coating (see smooth carrier) can be dip-lime, phosphating, borax treatment or copper plating.

  • We must have a certain understanding of the hexagonal network, we are the beautiful shape of the hexagonal network, more than the appearance of the hexagonal network is very beautiful, in fact, the practical value of survival is very high. To introduce the relevant information should be very clearly know the highway guardrail net, hexagonal wire netting in all kinds of fence netting, in the value of the high-speed on the road more MaoJian, it not only be used in all kinds of road, in a sports ball games venue and try our best to take care of landslides, also has reached very matter effectiveness.

  • The cage should be strong so that the bars cannot be bent or damaged by the parrot, and weak bars can be bent or damaged by the parrot and injure the parrot. Cages made of plastic coated railings can cause parrots to eat the coating and are not suitable. Quality cages are made of stainless steel, especially those made of colorful mild steel railings. Railing spacing is very important for the parrot’s safety, and the railing should always be small enough to prevent the parrot from poking its head out between the railing gaps. For small parrot species, column spacing of 1/2 inch (1.3 cm) is necessary. Medium parrot species such as grey parrots and Amazons require a 1 inch (2.5 cm) pitch, while great macaws can reach a pitch of more than 1 by inch (3.8 cm).

  • Post time: 07-06-24
  • 4. Rinse the foam off your cat thoroughly.
  • Annealing is to restore the plasticity of wire, improve the tensile strength of wire, hardness, elastic limit, etc., the wire after annealing is called annealing wire. In the production process of annealing wire, it is very important to ensure the quality of the finished wire, make the wire have certain strength and suitable degree of soft and hard. The annealing temperature is between 800 ℃ and 850℃, and the length of furnace tube is lengthened appropriately for enough holding time.

  • 6, barbed rope protection network layout should be according to the road boundary terrain necessary renovation, flat section level set, slope section slope or step set.

  • steel

  • The wide application of galvanized wire has brought great convenience to people’s production and life, but the production process of iron wire is not to be underestimated. In industrial production, the production process of galvanized wire should be strictly controlled to ensure the quality of galvanized wire.

  • Post time: 17-10-22

  • Pet

  • Post time: 13-06-24

  • Pet

  • 5, do not pull the wire beyond the plastic limit.

  • The external environment has great influence on the preservation of galvanized wire mesh. In the rainy season, it is necessary to pay attention to the air humidity of the workshop, warehouse and other departments. It is recommended to use a humidifier. Usually, the moisture absorption of book paper is larger than that of powder paper, and the pH value is higher. Generally speaking, in the normal environment of storage wire, storage time of two years is not corroded wire phenomenon. However, it should be noted that in the process of handling the iron wire, it should be handled gently to avoid the position of the coiling coil, which will cause the smooth pulling of the wire and affect the production.

  • Construction welding net work wall insulation project using galvanized welding network in wall insulation and rust engineering project plays a necessary role, wall painting batch putty network is divided into two kinds: this is galvanized welding network; Another is to change the wire drawing wire welding mesh, according to the provisions of the region, construction enterprises to carry out effective material selection. Construction welded wire mesh new mink cage new mink cage grommet see more 1 inch, from silk in 2 mm up and down, management method is simple and easy, a mesh surface bright and clean and is not easy to scratch mink, galvanized welded wire online zinc quantity proportion, it is not easy to rust, new mink cage up more convenient, mink settled in natural environment more comfortable, the price also is higher than before the same specifications of the mink cage competitive many, But the overall character is not harmed at all, it is stronger.

  • It is best to use special columns to fix the barbed rope installation, because the standard column is not only beautiful shape and better protection effect.

  • The price of galvanized iron wire is relatively low, but the corrosion resistance is excellent, so it is favored by many screen businesses. In the production process of galvanized iron wire, first of all, we should check the equipment to see if there are any problems, and then we should look at the galvanized process, whether there are factors that cause product discoloration. If these problems do not exist, or some of them occur on the same equipment, and some are normal, then we should consider the problem of raw materials at this time.