DY-SPT-I Self-propelled Road Striping Machine to Chile

DY-SPT-I Self-propelled Road Striping Machine to Chile

On 14th January, 2015, Zhengzhou Dayu Machinery Co., Ltd delivered one set road marking machine DY-SPT-I from our factory, which will be exported to Chile.

DY-SPT-I is a screeding type self-propelled thermoplastic road marking machine, suit for short-distance working and convenient for ransferring, with features of high construction speed, automatic walking, easy to operate, economical and practical. It was equiped with 30cm road marking shoe and 30cm glass beads dispenser accordingly.

Based on our customer's actual needs, we equiped 10cm road marking shoe + 10cm glass beads dispenser and 15cm road marking shoe + 15cm glass beads dispenser.

Due to urgent require for this machine, we deliver this machine by air to Chile. Meanwhile, the customer said, after he received the machine, he will come to our company to discuss more business on the end this January 2015.

Structure and characteristics of self-propelled line marking machine

    Self-propelled road maker machine is suit for short-distance working and transferring, with features of high construction speed, automatic walking, easy to operate, economical and practical.
    Self-propelled line marking machine consists of a paint stirrer, melting tank, clutch, glass beads bin etc. The paint melting tank is double structure of stainless steel fixed in the rack of machine. Paint stirrer is set on the melting tank lid. The lower part of melting tank is set with a discharge door, a discharge handle connecting with it. At the discharge door, a slide plate converged with the hopper. The hanger derrick is in the upper part of the cross, and the front gas nozzle is in the front end of hopper through the hanger device, the rear gas nozzle device at the back of the hopper, floor knife fixed on the bottom of both sides of the hopper. The dispenser of glass beads bin is controlled by the clutch. The rack of machine is installed with gas tank, warning lights and rear tail wheel. The rear wheel or front wheel is active steering and equipped with directional device, which can ensure flexibility in the operation of turning, but also ensure it draw a straight line, simple in operation.
   The above description is screeding type hand-push line marking machine, more suitable for hot melt and two-component paint. Another spray type marking machine, suitable for normal temperature paint, whose marking device is spraying gun. Spray guns were fixed on the gun rack, which can be adjusted up, down, front and back, according to needs of traffic lines marking and the terrain and the region.

driving type road marking machine	self propelled  traffic marking machine	hand push pavement marking machine

How to handle the problems in running pellet machine

If the pellet machine failed to boot, you need to check the following points.

1. Whether the power supply is normal connected.
2. Whether the shearing pin is break down.
3. Whether the overtravel-limit switch is in place.
4. Whether the gateway of pellet machine is in place.

If the electricity power is unstable, the following factors and steps should be considered.

1. The space between compression roller and ring die is unsuitable adjusted.
2. Riving knife was badly worn, the material is asymmetrically distributed.
3. Semi-finished products or recycled material contains powder too thick (caused by damaged classifying screen).
4. Raw material, add fluid and steam were not fully mixed.
5. Transmission belt is not of reasonable tightness.

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Correct operation of block grease when refuel the pellet machine

What is the correct operation of block grease when refuel the pellet machine, and how to solve the problems?

When refueling pellet machine, first shut the gas, then move block grease.
1. It is unavoidable forgetting to shut down the gas when moving block grease. In this circumstance it will be hard to move, do not move recklessly, shut the gas first.
2. If it was still hard to move after turning off the gas, please remove the inside hexagonal bolt to slide the block greases apart. Then put the two O shape rings correctly again in the middle of the block greases.
3. when the block greases is not linked to the oil line due to high pressure, the block greases will be cling. Just remove the inside hexagonal bolt.

Unusual sound and great vibration of pellet machine working

Pellet machine is working with unusual sound and great vibration. The following factors should be considered as main reasons causing it.

1. The raw material conveying is unstable, and feeding speed should be adjusted.
2. Worn deflection scraper caused uneven feeding, you should change new scraper.
3. Ring die and compression roller of the pellet machine are not all newly installed, it is better to collocate a new ring die with new roller.
4. The space between ring die and compression roller is discordant with the size of raw material. The space is need adjusting.
5. It may be caused by using of both old and new compression rollers, or worn and damaged compression rollers.
6. The formula of raw material is difficult to granulate, the formula should be modified.
7. It may be caused by insufficient steam supply or unstable pressure. Check the steam piping and the system pressure and pressure reducing valve.
8. Granulating granary was filled in sundries, remove sundries in granulating granary.
9. Worn or damaged main shaft bearing needs to change.

Knowledge from road construction and maintanence engineers and contractors

Basic Components of Road Marking Macine

Pavement marking equipment comes in many shapes and sizes. All equipment manufacturers have their own configuration of basic components for a given application. A long-line paint truck manufactured by one company may look considerably different from the paint truck of a different manufacturer.

Although a specific machine is built to apply a specific type of material, all pavement marking equipment, except preformed tape applicators, will generally fall into one of the following categories: long-distance road marking machine and hand-push road marking machine.

Long-distance road marking machine, as the name implies, are designed to produce long distance pavement markings. They are self-propelled and are equipped to carry relatively larger quantities of road marking paint material. Most are set up with more than one applicator or spray gun. Hand-push road marking machines, which are much smaller than self-propelled road marking machine, are generally designed for operators to walk behind. They can only carry a limited quantity of paint material.

Long-distance road marking machines vary somewhat from the specific systems they incorporate based on the type of pavement marking material they are designed to apply (paint, epoxy, thermoplastic paint, etc.). However, the following components can be found on all Long-distance road marking machines:
1. Air compressor (airless applicators included)
2. Material holding tank (with mechanical agitators)
3. Reflective bead tank (pressurized)
4. Cleaning system (cannot be in-line system)
5. Material heating system (if necessary)
6. Material applicators (spray guns, etc.)
7 Reflective bead guns
8. Control system (spray gun control, skip timer, etc.)
9. Counter system (for measuring distance and/or paint material)
10. Guidance aid (some means for the operator to line up with the road or with existing markings)

Pre-stripe Inspection

The following is the recommended procedure for the engineer prior to beginning work on the project:

a. The engineer or designee will become familiar with the equipment by walking around it with the operator. They should discuss how the machine is set up and how it operates. During this discussion, the engineer or designee should be assured that everything is in working order. The preceding checklist may be used as a guide for this procedure.
b. The contractor shall apply a sample marking for inspection. While this is taking place, the engineer or designee will ensure that the contractor is taking quality control test samples for thickness and width of material, and reflective bead application rate(according to government agency specifications). The results of the quality control tests shall be reviewed and discussed with the contractor.
c. Before proceeding with the work, the engineer or designee will inspect the marking and test panels for quality, clean edges, even bead distribution, proper bead depth, required width, and general appearance.

If any problems or inconsistencies are discovered, do not proceed the maring work!

Quality Control

Clear communication and cooperation yields positive inspector/contractor interaction and helps ensure quality. This is essential regardless of the type of work. Discuss any problems with the contractor's certified quality control technician and stay informed of the adjustments the contractor makes to correct them. The following guidelines will ensure proper quality:

Once the work is in progress, the engineer and contractor's quality control technician shall periodically stop, get out of the truck, and inspect the line.
Continuous close attention to the appearance of the line is the best way to ensure quality work.
Generally, inspection of the actual marking is the best tool for determining equipment problems.
Proper width does not ensure even edges.
Proper material thickness does not ensure adhesion.
Proper bead application rate does not ensure either retention or proper embedment.
To ensure quality, the pavement markings must be inspected closely.

Typically, the contractor's certified quality control technician is required to make the quality control checks according to the government agency's specifications. The purpose behind any quality control plan is to ensure quality. Whenever there are any doubts about the quality of the work, they MUST be investigated.

Deficiencies may or may not be due to equipment problems. When everything is working properly, pavement markings can be compared to an orchestra; all the components must work together. Material properties, weather conditions and operator skill can all affect the quality of the final marking. Diagnosing the cause or combination of causes for a given problem can be very difficult. Engineers and inspectors who are knowledgeable about pavement marking equipment are better able to identify equipment problems.

As always, it is the responsibility of the contractor to solve the problem. However, this should never be misconstrued to lead the engineer away from helping to identify problems. In other words, although the engineer cannot tell the contractor how to fix a problem, knowledgeable engineers can and should be considered a valuable tool for the contractor, always keeping in mind that quality is the main goal.

Terrible drilling rig construction accident warning safety operation

In Zhejiang province, China, a drilling rig overturned accident killed a 22 years' old work fellow.

It was a skilled drilling rig operator drave a 360 degree rotary drilling rig overturned, batter a 22 years' old worker to death. It was said that the drilling rig operator was too careless to find the collapse slope at night. The crawler drilling rig was overturned when the offside track grind the collapse. The operator was detained by the police.

Safety operation is of vital importance! Once driving on the drilling rig the mind should be on the alarm, watching every circumstance. Never work tired, stop to avoid accident, make safty first.