Pittsburgh lock forming machine, also known as reel machine, seam machine, undercut machine, air duct lock machine, air duct reel machine, upright lock machine. It is a multi-functional machine, mainly used for the lock processing of metal plate connections and closed connections of round air ducts. Due to the diversity of its functions, the Pittsburgh lock forming machine is an indispensable part of the production process of the air duct.

Pittsburgh Lock Forming Machines Features

It can meet the various shapes of bone types manufactured by air ducts. The thickness of the processed sheet is 0.5-1.5mm. All gears, shafts, and rollers of the machine are made of high-quality steel. After a strict heat treatment process, the machine is guaranteed to be durable and stable in quality. It has the characteristics of easy installation, beautiful appearance, reasonable mechanical principle, flexible movement, and convenient operation and use, which can meet the needs of users. different requirements.

The lock forming machine is suitable for the production of air ducts for ventilation, air conditioning, purification, and other devices. According to the requirements, it can be made into a various square and rectangular thin plate air ducts. It is indispensable mechanized equipment for various sheet metal processing and air duct production. Pittsburgh Lock Forming Machines

Type of Use

The Pittsburgh lock forming machine is divided into a multi-function lock forming machine, a joint angle lock forming machine, a cutting lock forming machine, a flat lock forming machine, an elbow lock forming machine, and an upright lock forming machine. Pittsburgh Lock Forming Machines

Structure And Composition

The structure of the lock forming machine consists of three parts: the feeding part, the transmission part, and the forming part.

The forming part mainly refers to the host part, and the core part is the roll. When too much material is fed between the two pressure rollers or into the extrusion between the rollers.

The feeding part is mainly manual feeding, using the gap between the rolls to feed. Pittsburgh Lock Forming Machines

The main transmission system of the transmission part is a motor, a triangle belt, a reducer, an open gear, and a roller. The main engine is powered by an electromagnetic speed-regulating motor and is transmitted to the driving shaft through a pulley, a cylindrical gear reducer, and a rod-pin coupling. Pittsburgh Lock Forming Machines

Use Points

The thickness of the lock forming plate should be within the delineation range of various specifications of products. If it is less than the minimum thickness, it is prone to cracking, wrinkling, and other defects during the bite; if it is greater than the maximum thickness because the square of the plate thickness is inversely proportional, it will be The significant increase in the bending force causes abnormal damage to the forming rollers, overloading of the transmission system and obstructions such as boring cars. Pittsburgh Lock Forming Machines

The minimum length of the lock forming section of the sheet should not be less than 300mm, otherwise, the degree of resistance at the bite will be greater than the frictional force of feeding the sheet forward due to too little contact between the sheet and the forming roller at the same time, causing the sheet to slip between the forming rollers. Accelerates the wear of the forming part of the roller.

Before use, the debugging of the feeding guide rail should be strictly in accordance with the debugging requirements of the equipment, and the feeding guide rail should be adjusted to the specified position and size and then firm. If the actual position of the feed rail is smaller than the specified position size,

the bite will not be formed; if it is larger than the specified position size, the size of the bite will be out of tolerance because the feed is too wide, causing the two sheets to be unable to be engaged or not. Waste of raw materials; if the feeding guide rail is inclined tightly, it is easy to cause the deviation of uneven width of the bite. Pittsburgh Lock Forming Machines

The processing ability of the bite machine is designed according to the processing of ordinary steel plates. The commonly used ordinary thin steel plates galvanized thin steel plates, and plastic composite steel plates have excellent bite forming performance. The strength of the stainless steel plate is higher than that of the ordinary steel plate. Before using the stainless steel plate to bite, it is firstly carried out to avoid overloading the equipment, causing excessive wear or machine disturbance.

Because of the poor plasticity of the aluminum plate, it is easy to crack when the bite is formed, and a forming experiment should be carried out before construction. Pittsburgh Lock Forming Machines

The adjustment of the radially reserved gap between the upper and lower forming rollers not only requires tightness but also the same front and rear. If the reserved gap is too small, it will be difficult to feed the material, and even after forcibly feeding, the bite will be cracked and tense;

if the reserved gap is too large, the shape of the bite will be irregular or the sheet will slip between the forming rollers. When using a stainless steel plate or an aluminum plate to bite, the radial reserved clearance should be adjusted to be larger than the gap required by the steel plate of the same thickness, otherwise, it will cause the equipment to overload or the bite to crack. Pittsburgh Lock Forming Machines

Size Regulations

The processing capacity of the lock forming machine is designed to process ordinary steel plates. Commonly used ordinary thin steel plates, galvanized thin steel plates, and plastic composite steel plates have good lock forming performance. The strength of the stainless steel plate is higher than that of the ordinary steel plate. Before using the stainless steel plate to lock, a forming experiment should be carried out to avoid overloading the equipment and causing excessive wear or mechanical accidents. Due to the poor plasticity of the aluminum plate, it is easy to crack when the bite is formed, and a forming test should be carried out before construction. Pittsburgh Lock Forming Machines

Before the bite machine is used, the debugging of the feeding guide rail should be strictly in accordance with the debugging requirements of the equipment, and the feeding guide rail should be adjusted to the specified position and size and then fixed.

If the actual position of the feeding guide rail is smaller than the specified position size, the bite will not be formed; if it is larger than the specified position size, the size of the lock forming will be out of tolerance because the feed is too wide, causing the two sheets to fail to lock forming or waste material. ; If the feeding guide rail is seriously skewed, it is easy to produce deviation defects with uneven width of the bite. Pittsburgh Lock Forming Machines

The thickness of the lock forming plate of the bite machine should be within the specified range of products of various specifications. If it is less than the minimum thickness, defects such as cracking and wrinkling are likely to occur during the bite; if it is greater than the maximum thickness because the square of the thickness of the plate is proportional to the Due to the obvious increase of the bending force, abnormal damage to the forming rollers, overloading of the transmission system and car jam will be caused. Pittsburgh Lock Forming Machines

Adjustment Method

First adjust the required thickness of the working range (the gap between the upper and lower rolling wheels), screw the inner and outer rolling wheel adjustment nuts to the end, and then reversely roll 0.5mm material and turn 120 degrees (1/3 turn), and roll 1.0mm material. 240 degrees (2/3 turn), 290 degrees (about 5/6 turn) when rolling 1.2mm material. If the material slips during work and the gap are too large, you can tighten the adjusting nut a little more.

After adjustment, you must use two wrenches to tighten the upper and lower nuts at the same time to prevent loosening, but do not adjust the gap too small to avoid damage to the machine. We need to remind everyone that the multi-function bite machine has been adjusted to a thickness of 1mm when it leaves the factory. If processing materials with a thickness of about 1mm, there is no need to adjust them. The pressure regulating rod of the beading wheel can adjust the height of the folding rib according to the user’s requirements. The tighter the pressure regulating rod is, the flatter the folding rib becomes. Pittsburgh Lock Forming Machines

Adjustment of the discharge ruler of the inner and outer rolling wheels. The adjustment method of the discharge ruler is to stop and adjust when the plate passes through the bite and reaches the discharge end so that the side of the discharge ruler is attached to the plate and then close to the ruler to make it Just locate.

The adjustment of the bite forming size mainly refers to the change of the bite size, which is realized by adjusting the position of the feed ruler on the tabletop. The position L1 of the feed ruler of the inner rolling wheel is measured relative to the inner surface of the left beam plate.

The position L2 of the outer roller inlet by the ruler is measured relative to the outer surface of the beam plate. After the position of the feeding ruler is determined, in order to prevent deviation, the outer end of the feeding ruler of the inner rolling wheel can be shifted inward by 2-3 mm, and the outer end of the feeding ruler of the outer rolling wheel can be shifted inward by 1-2 mm. Pittsburgh Lock Forming Machines

The conversion of the bite function will require different molding states to be adjusted depending on the function. The bite machine is generally set in the joint angle bite state when it leaves the factory. Follow these steps:

1. Cut off the power supply (pull down the main switch). Pittsburgh Lock Forming Machines

2. According to the instructions in the manual, remove the upper and lower movable rollers shown and place them in the roller box.

3. Lift the flap, and take out the 12 spare single flat rolls in the roll box in the machine. Pittsburgh Lock Forming Machines

4. Install the single flat rolling wheel one by one, install the gasket, tighten the nut, reset the flap, and then the side can be rolled and installed with the single flat mouth mechanism.

In summary, the variety of functions of the Pittsburgh lock forming machine makes it play an important role in the production of air ducts, and various positioning baffles should be flexibly used to achieve different functions during operation. The flexible use of the Pittsburgh lock forming machine can make the production and processing process of the air duct more efficient.

Lock forming machines are industrial machines used in sheet metal fabrication to create locks or seams along the edges of metal sheets. These machines are commonly used in the HVAC (Heating, Ventilation, and Air Conditioning) industry for manufacturing ductwork, as well as in various other metalworking applications.

Lock forming machines typically work by bending or folding the edges of metal sheets to create interlocking seams, which provide strength and stability to the assembled pieces. They can form various types of locks or seams, including Pittsburgh locks, snap locks, and standing seams.

There are different types of lock forming machines available, ranging from manual hand-operated machines to fully automated CNC (Computer Numerical Control) machines. Some common features of lock forming machines include adjustable settings for seam width and depth, various speed settings for different sheet metal thicknesses, and interchangeable tooling for different types of locks.

Lock forming machines play a crucial role in streamlining the production of ductwork and other sheet metal components, allowing manufacturers to create strong and precise seams efficiently.