JOBEST MACHINERY TECHNOLOGY 
CNC Rolling Machine
This four roll plate bending rolls are recognized worldwide as the fastest, safest, most precise and easy to use plate roll available in the all range. This is a fully hydraulic 4-roll bending machine with pre-bending. Rolls length up to 6.000mm, plate thickness up to 150 mm
This Advanced Design Has The Following Benefits Such As:
(1) Plate is introduced horizontally (and not tilted as on the three roll double pinch)
(2) Plate is squared instantly against the back roll (reducing risk of a mis-matched end condition of the part)
(3) Requires space only on one side of the machine, where the plate is introduced to the machine
(4) Greatly reduced flat-end (due to better pre-bending) thanks to the clamping roll that can take the edge to the precise tangent points of the top and bottom rolls
(5) It is the fastest machine to roll a can, as it would require only one position for each side bending roll
(6) The entire cylinder can be finished in only one pass (within a suitable capacity), including pre-bending of the edges
No need to pre-bend both ends before starting to roll the entire cylinder, as required with a 3 roll
No need to remove, turn and re-insert the plate as on a 3 roll single pinch
(7) The four roll could be even 50-80% faster and more productive than any style three roll
(8) The most suitable for CNC operation, as the plate is under a better control, clamped between the top and bottom rolls, until the part is finished
The Four Roll Design Is Recommend For Clients Who:
1. Wish to operate through CNC, with less dependence on operator skills
2. Look for more steady quality of the rolled products.
3. Look for high productivity, and increased profits.
4. Require good accuracy and quality improvements.
5. Need handling equipment for larger plates, who are also concerned for production or safety reasons.
6. Are new to plate rolling, as it is the easiest plate roll to operate.
Features:
1. Extremely robust structure machined with CNC control machines
2. Two hydraulic motors coupled to planetary gear units for the rotation of the two central rolls
3. Hardened rolls / Hardened and polished rolls
4. Separate control desk on wheels
5. Hydraulic opening of shoulder by control desk
7. Hydraulic inclination of lateral rolls for conical bending directly from control desk
8. Numerical control for automatic production
9. Movements of rolls on swing guides to reduce flat part
10. It can be used to roll tubes, tube segments, rounded boxes, ovals or other shapes.
11. Rolls rotation on high resistance selfaligning bearings
12. Rolls Cambering: know how variable cambering to avoid reel and barrel effect to increase bending performance and precision
Rolling Process:
1. Plate alignment and squaring positively against the back roll.
2. Plate pinching (at a pre-set, safe, pressure).
3. Plate is moved as far back as possible between the top and bottom rolls, for the very minimal flat-end.
4. Side roll is moved up, to bend the edge of the plate (pre-bending position).
5. The rolls rotate, to feed the plate, to round the entire leading edge.
6. Inversing the side rolls (down the front roll; up the rear roll).
7. Rotate the rolls, feeding the plate to roll the entire plate length to the required diameter.
8. Pre-bending the trailing edge is an automatic end-of-process feature, continuing feeding the plate forward.
Optional Components:
Technical Data:
CNC controlled, automatic CNC rolling machine manufacturer, supplier in China.
Weclome to contact us to get detailed offer according to your exact request.
Q & A:
(1) How long is the service life of your product?
It depend on the worker skills and experience and working hours every day, if do normal maintenence for the rolling machine under instruction, its life can upto 10 years. and we need to see the working plan every day, if working 12 hours even more, that will effect the service life.
(2) What are the specific categories of your products?
We have main 3 kinds of roll bending machine, Mechanical 3 roller, hydraulic 3 roller with prebending and hydraulic 4 roller with pre bending.
(3) What are the specifications and styles of existing products?
We have light and heavy types rolling machine, thickness from 6-150mm, width 1000-12000mm, and we can make special machine as per customer special request, for example, smaller rolling diameter, special application like oil pipe, wind tower, loader etc.
Quality Management Process
The whole process of cnc rolling machine production refers to a series of processes starting from market research, through product development and design, product process preparation, raw material procurement, production organization, control, inspection, packaging and storage, sales, and service. That is to conceive and produce ideal products, promote products to the society, and provide users with use value. The basic method of total quality management is the quality management of the whole process. By improving the work quality of each link, the quality of the product is guaranteed.
The criteria for measuring the pros and cons of the production process are: high yield, high quality and low consumption. It can also be said that it is faster and more economical, and its quantitative indicators are reflected in the input-output ratio.
To achieve this goal of the production process, firstly, each production factor, human, financial, material, information, etc., meet the needs of the production products in terms of quality and quantity. This is the premise and basic condition for organizing the production process. Therefore, production management must start with basic conditions. The second is to make each production factor in the best combination state in the production process, and form a complete system that is linked, closely coordinated, orderly, and highly efficient according to the requirements of the product production process.
Method Steps For Quality Improvement
Quality improvement uses the planning-implementation-check-processing cycle theory, which can be divided into 8 implementation steps.
1. Mobilize all employees to actively participate in quality improvement work at all levels.
2. Make plans, clarify responsibilities, and ensure resources.
3. Investigate the reasons and collect relevant information in detail.
4. Correctly analyze the data and determine the causal relationship.
5. According to the corresponding reasons, formulate preventive or corrective measures and put them into practice.
6. Evaluate and confirm results in a timely manner, and strengthen ineffective or ineffective measures.
7. Summarize lessons learned and consolidate achievements.
8. Select new goals for continuous improvement.
Application For Dredging Vessel
A dredging vessel is a tool for removing sediment from the bottom of the water. There are generally two types of power: diesel engine and electric motor. The hull is the floating body, which adopts an assembled box structure. There are dredging devices, power devices, transmission devices, etc. The bottom sediments are removed by the power-driven dredging device and sent to the designated position by the conveying device.
Cutter suction dredging vessel is the main type of dredging vessel, which consists of floating body, reamer, upper suction pipe, lower suction pipe, pump, power and so on. He used the reamer at the front of the lower suction pipe and the rake head device to cut and agitate the bottom sediment to loosen it, and then it was sucked up by the pump through the lower suction pipe, and the upper suction pipe was sent out to the designated position. This ship is efficient and low cost. Depending on the ship type, the sand-water mixture is processed at 50 to 500 cubic meters per hour. The super-large dredging vessel has a processing capacity of over 1,000 cubic meters.
Scope of application: artificial lakes, rivers, reservoirs, seaside, ports, etc.
