Introduction
The round duct elbow locking machine manufactured by our company is specialized equipment designed to process the locking of round sheet metal pipes and duct elbows (shrimp bends).
Round metal tubes can produce two types of beads by adjusting special washers under a set of rollers. These beads can then be connected to the other set of rollers, forming a perfect joint.
The round tube elbow locking machine has a well-designed structure, providing stable and efficient performance. It is easy to operate and has precise size and angle specifications. The air duct after locking is securely sealed, ensuring durability.
Our company offers two models of round tube elbow locking machine, the XMWT-700 and the XMWT-1000, each designed to meet specific processing capabilities and ranges. Both models feature two independent drive systems, allowing each set of rollers to be operated separately. This allows two people to simultaneously complete the cord pressing and joining process.
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Main Technical Specifications
| Model | Maximum sheet thickness | Tube diameter | Production speed | Power | Weight | Dimension L*W*H |
|---|---|---|---|---|---|---|
| (mm) | (mm) | (m/min) | (kW) | (kg) | (mm) | |
| XMWT-1000 | 1.0 | F100-1000 | 8 | 1.5 kW × 2 | 450 | 2230*900*1050 |
Machine Structure
Here are the drawings:
Elbow machine structure
Machine Structure:
The machine's frame is made of angle steel and sheet steel, which are welded and assembled for optimal rigidity. The surface of the work table is chrome-plated for greater durability and easy maintenance.
Transmission mechanism:
The machine is equipped with two sets of independent transmission mechanisms. Each mechanism consists of two rolling mills, a high-quality V-belt, a primary helical gear and a primary gear transmission.
Working device:
When forming the bead, the machine has two rollers and a positioning wheel. To connect the cords, it has two rollers and four arm support rollers.
Operating device:
The machine is equipped with a foot-operated electrical switch to control the direction of roll rotation and an adjustment handwheel to control roll feed.
Elbow Machine Operation
(I) Operating Instructions
Before starting operation, select the appropriate roller and pad based on the sheet thickness and pipe diameter.
Before rolling the cord, adjust the distance (a) between roller B and the positioning table. There are two types of cord shapes that can be formed by rolls A and B, respectively.
Normally, when forming the bead, a should be set to approximately 4-8 mm. The distance between locking surface A and B (b) should be adjusted approximately to the sheet thickness plus 0.2 mm. The value of a is normally set to 4 mm when the machine is delivered from the factory to produce the desired bead shape. The clearance b of the locking surface of A and B is adjusted based on the clearance of a sheet with a thickness of 0.8 mm.
Note: The height of rollers A and B can be adjusted by turning the round nuts mounted on the main shaft under the rollers.
When producing the cord, it is necessary to install a gasket with a thickness of 4 mm or 5 mm (for sheets with a thickness equal to or greater than 0.8 mm) under rollers A and B. The gasket with a thickness of 4 mm or 5 mm can be attached randomly.
(II) Operation methods
When starting, check that the direction of rotation of the roller is correct. Make sure the roller rotates in the indicated direction (roller A rotates counterclockwise).
When carrying out the forming process, position the part on the positioning table. Adjust the 3-M8 screw on the positioning table so that the positioning wheel adheres to the workpiece (as shown in Figure 4) to regulate the oscillation range of the workpiece during rotation.
To form the workpiece, gently press the top of the feeding side with your hand to make the bottom edge of the workpiece meet the positioning table. Then turn the handwheel to slowly press roller B with roller A until you get the desired shape.
When connecting round ducts, insert one end of the round pipe into the bead of the other pipe and clamp the two beads at several diagonal points using a hammer or pliers. Then place it between the second set of rollers and turn the handwheel so the roller gently presses into the seam.
Adjust the height of the support frame and the position of the two support arms. Use the swivel arm roller on the support arm to keep the connecting seam level and allow the round duct to rotate smoothly without falling during the joining process.
After starting, turn the handwheel slowly to press roll C against the other roll, creating a press-formed interface.
P precautions for you if
The operator must have a good understanding of basic principles and proper elbow use.
Before starting work, inspect the clearance of each adjustable component to ensure it is reasonable. Carry out a test run to check that the machine is running smoothly and that the direction of wheel rotation is correct.
The moving parts of the machine must always be kept clean and lubricated with suitable oil or grease.
The material to be rolled must be cleaned to remove any debris such as sand or iron filings to prevent damage to the roll.
The thickness of the part must not exceed the maximum allowable thickness of the machine to avoid damage to the machine.
If any abnormal behavior is observed during operation, stop the machine immediately and carry out an inspection to identify the problem and prevent further damage.
The gearbox must have a sufficient oil level and be lubricated regularly with the appropriate oil adapted to the local environment.
The machine must be properly grounded and maintenance and adjustment work must only be carried out with the power switched off and the machine switched off.
Maintenance and installation
Maintenance
It is important to regularly add calcium-based grease to each bearing or gear to maintain proper functioning. However, avoid adding oil to the roller to prevent the material from slipping.
To protect the wheel and maintain processing quality, regularly remove any dirt, such as iron filings, from the roller surface.
Additionally, it is important to regularly check the tightness of the V-belt and make any necessary adjustments to ensure it remains secure.
Installation
The elbow machine has minimum workplace requirements and can be placed on a relatively flat cement floor. This makes it suitable for use in both factory environments and installation sites.
Here are the drawings:
Elbow Machine Drawing
