Snakelike coil pipe cutting device
The precise cutting of the serpentine coil cutting device solves the problem of insufficient coil processing accuracy, ensuring vertical and burr-free cutting, and improving the thermal performance and energy-saving effect of the cooling tower.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-03-13
AI Technical Summary
In closed-circuit cooling towers, insufficient machining precision of the serpentine coils leads to cooling tower performance failure, especially poor liquid leakage performance of the coils, and non-perpendicular cutting produces burrs that affect welding quality, resulting in reduced thermal performance and failure of energy-saving parameters.
A serpentine coil pipe cutting device is adopted, including a main frame, a cutting saw, a clamping mechanism and a PLC control system. It achieves precise cutting through a clamping and fixing bracket, a V-shaped chuck and a safety guard, ensuring that the cut is vertical and burr-free. The PLC control system is used for precise positioning and automated cutting.
It enables precise cutting of serpentine coils, reduces welding defects, improves thermal performance and energy-saving parameters, and meets design and customer requirements.
Smart Images
Figure CN223989123U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of closed cooling tower technology, and in particular to a serpentine coil cutting device. Background Technology
[0002] In the field of industrial technology, circulating cooling water is commonly used to cool large industrial equipment or to lower indoor temperatures in central air conditioning systems. After the chilled water exchanges heat with the equipment, hot water is then sent at high speed through pipes to a cooling tower. There, it undergoes further heat exchange before being returned to the refrigeration equipment for reuse. This process primarily relies on a fan continuously operating at the top of the cooling tower, in conjunction with a spray system, to dissipate heat from the packing module coils on one side.
[0003] Currently, in the production of closed-circuit cooling towers, the coil heat exchanger, which is processed into a serpentine coil, is one of the main components of the cooling tower's performance. If the processing precision of the coil is insufficient, it will directly affect the cooling tower coil, causing leakage and performance failure. One of the challenges we face is how to efficiently manufacture coils and accurately cut single tube segments to the required length while meeting design requirements and quality standards. If the cut is not perpendicular and has burrs, it will cause welding defects during subsequent plate welding, leading to leakage, reduced thermal performance, and failure of energy-saving parameters, thus failing to meet design and customer requirements. Utility Model Content
[0004] The purpose of this invention is to solve the problems existing in the prior art and provide a serpentine coil pipe cutting device. This results in more accurate pipe cutting length, better finish, fewer burrs, and greater safety.
[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a serpentine coil cutting device, characterized in that it includes: a main frame, a cutting saw, a clamping mechanism, and a PLC control system; a fixed-length baffle for limiting the end of the coil to be cut is slidably connected on the main frame, one side of the fixed-length baffle is a clamping mechanism for clamping the coil to be cut, the clamping mechanism includes a clamping fixing bracket, a safety guard, a slot and a V-shaped chuck, the slot for clamping the coil to be cut is connected on the clamping fixing bracket, one side of the slot is connected to a V-shaped chuck for clamping the outermost part of the coil to be cut and a safety guard for preventing iron filings or saw blades from flying and injuring people during the cutting process, the cutting saw is located below the clamping fixing bracket and connected to the main frame, and the PLC control system is connected to and controls the lifting and cutting of the cutting saw.
[0006] The slot includes three sets of clamping plates for clamping the coil to be cut. The clamping plates are vertically connected to the clamping and fixing bracket. The V-shaped chuck is set in the vertical direction of the clamping plates and clamps the coil together with the clamping plates.
[0007] The V-shaped chuck includes a chuck, a push-pull rod, a locking handle, and a fixing bolt; the safety guard is connected to the clamping and fixing bracket via a rotating shaft and has a guillotine-type structure, with holes for the coil to be cut to pass through.
[0008] The main frame is L-shaped, and the cutting saw, clamping mechanism and PLC control system are all located at the corners.
[0009] A movable waste collection box is located below the clamping mechanism.
[0010] This utility model has a reasonable structure and simple operation. It can achieve precise cutting of serpentine coils, ensuring that the cutting is vertical and burr-free, greatly reducing welding defects caused by subsequent orifice plate welding, improving the thermal performance index of the coil, maintaining the effectiveness of energy-saving parameters, and thus well meeting design and customer requirements. Attached Figure Description
[0011] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model. Figure 1 ;
[0012] Figure 2 This is a three-dimensional schematic diagram of the structure of this utility model. Figure 2 ;
[0013] Figure 3 This is an enlarged view of the card slot and V-shaped clamp of this utility model;
[0014] Figure 4 This is a schematic diagram of the cutting saw rising and cutting during the use of this utility model (the surrounding shielding frame is omitted).
[0015] In the diagram: 1. Main frame; 2. Length baffle; 3. Cutting saw; 4. PLC control system; 5. Clamping and fixing bracket; 6. Safety guard; 7. Waste collection box; 8. Coil to be cut; 9. Slot; 10. V-clamp. Detailed Implementation
[0016] Example 1
[0017] like Figures 1-2The serpentine coil cutting device shown includes a main frame 1, a cutting saw 3, a clamping mechanism, and a PLC control system 4. A length-limiting baffle 2 for limiting the end of the coil 8 to be cut is slidably connected to the main frame 1. One side of the length-limiting baffle 2 is a clamping mechanism for clamping the coil 8 to be cut. The clamping mechanism includes a clamping fixing bracket 5, a safety guard 6, a slot 9, and a V-shaped chuck 10. The slot 9 for clamping the coil 8 to be cut is connected to the clamping fixing bracket 5. The V-shaped chuck 10 for clamping the outermost part of the coil 8 to be cut is connected to one side of the slot 9, as well as a safety guard 6 for preventing iron filings or saw blades from flying and injuring people during the cutting process. The cutting saw 3 is located below the clamping fixing bracket 5 and connected to the main frame 1. The PLC control system 4 is connected to and controls the lifting and cutting of the cutting saw 3.
[0018] The slot 9 includes three sets of clamping plates for clamping the coil 8 to be cut. The clamping plates are vertically connected to the clamping and fixing bracket 5. The V-shaped chuck 10 is set in the vertical direction of the clamping plates and clamps the coil together with the clamping plates.
[0019] like Figure 3 As shown, the V-shaped chuck 10 includes a chuck, a push-pull rod, a locking handle, and a fixing bolt; the safety guard 6 is connected to the clamping and fixing bracket 5 via a rotating shaft and has a guillotine-type structure. The safety guard 6 has holes for the coil 8 to be cut to pass through.
[0020] The main frame 1 is L-shaped, and the cutting saw 3, clamping mechanism and PLC control system 4 are all located at the corners.
[0021] A movable waste collection box 7 is provided below the clamping mechanism.
[0022] Example 2
[0023] How to use this utility model:
[0024] The first step is to place the coil 8 to be cut into the U-shaped cutting equipment slot 9. The three sets of clamping plates in the slot 9 can be adjusted to fit different models of products. The position and size are defined according to the size of the required product, so that the coil to be cut can be fixed stably and the amount of deformation can be reduced. After clamping, the safety guard 6 is lowered to avoid the danger of splashing and injuring people during cutting.
[0025] The second step is to set the cutting position of the fixed length baffle 2 according to the drawing requirements. The fixed length baffle 2 is controlled by the PLC control system 4, which can greatly improve the positioning accuracy.
[0026] The third step is to activate the V-shaped chuck 10 of the clamping mechanism after completing the positioning in the second step. This design can quickly lock the coil 8 to be cut. Because the chuck is V-shaped and can move horizontally and smoothly on the track, it can automatically correct the position of the tube when it comes into contact with the round tube, so that any size coil between 19mm and 32mm can be kept in a concentric vertical position.
[0027] Fourth step, turn on the power switch, such as Figure 4 The image shown is taken from a low angle. At this time, the cutting saw 3 receives a signal and automatically rises to cut the material according to the program requirements, and then automatically returns to its original position.
Claims
1. A serpentine coil cutting device, characterized by: Include: The main frame, cutting saw, clamping mechanism and PLC control system; the main frame is connected with the limiting baffle for limiting the end of the pipe to be cut, the limiting baffle is connected with the clamping mechanism for clamping the pipe to be cut on one side, the clamping mechanism includes clamping fixed support, safety shield, clamping groove and V-shaped chuck, the clamping fixed support is connected with the clamping groove for clamping the pipe to be cut, the clamping groove is connected with the V-shaped chuck for clamping the outermost side of the pipe to be cut and the safety shield for preventing the flying of iron filings or saw blade in the cutting process, the cutting saw is located below the clamping fixed support and is connected with the main frame, the PLC control system is connected with and controls the lifting and cutting of the cutting saw.
2. A serpentine tube cutting device according to claim 1, wherein: The clamping groove includes three groups of clamping pieces for clamping the pipe to be cut, the clamping pieces are connected with the clamping fixed support perpendicularly, and the V-shaped chuck is arranged in the perpendicular direction of the clamping pieces and clamps the pipe together with the clamping pieces.
3. A serpentine tube cutting device according to claim 2, wherein: The V-shaped chuck includes a chuck, a push-pull rod, a locking handle and a fixing bolt; the safety shield is connected with the clamping fixed support through a rotating shaft and has a gate type structure, and a hole is formed in the safety shield for passing through the pipe to be cut.
4. A serpentine tube cutting device according to claim 1, wherein: The main frame is L-shaped, and the cutting saw, clamping mechanism and PLC control system are located at the corner.
5. A serpentine tube cutting device as defined in claim 1, wherein: A movable waste collection box is arranged below the clamping mechanism.