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Brief introduction of roller conveyor shot blasting machine

The roller conveyor shot blasting machine is suitable for processing steel plates, section steels, structural parts, square pipes, round pipes, etc., and has a wide range of applications. With the progress and development of society, all sectors of manufacturing industries such as steel, shipbuilding, and steel structures are facing the problem of workpiece cleaning. In order to produce high-quality parts, it is necessary to ensure that the material is completely free of rust, scale, dirt, and pollution during any subsequent processing. Various application effects prove that shot blasting is an ideal treatment method.

1. The use characteristics of roller conveyor shot blasting machine.

(1) It adopts two types: through type and hanging chain type. The through type adopts a roller conveyor to transport the net frame into the shot blasting room, and the hanging chain type purchases catenary guide rail walking. Generally, the latter uses more wiring.

(2) According to the workload and the requirements of the cleaning effect, generally 4 shot blasting devices or 8 shot blasting devices are generally configured, and the user has a large workload demand, and more shot blasting devices can be configured.

(3) The rust removal level is above Sa2.5 level.

(4) Save labor. The only place where labor is needed is to operate the electric control cabinet and load and unload materials.

(5.) The cleaning effect is good, and it is environmentally friendly and pollution-free.

2. The working process of the roller conveyor shot blasting machine.

(1) The machine adopts roller conveyor type for loading and unloading, enters the shot blasting chamber through manual loading, and transports to the discharge port after cleaning.

(2) The three-dimensional simulation design of multiple shot blasters is used to clean the workpiece in all directions without dead ends.

(3) The cleaned steel shot enters the bottom screw system, and then is conveyed from the bottom screw to the elevator, the elevator is lifted to the separator to separate the dust and the steel shot, the dust enters the Dust collector system for centralized treatment, and the impurities enter the filter screen, The good steel shot flows into the shot blaster to continue recycling.

(4) The equipment has a feed port and a discharge port. The size of the port is based on the size of the user's grid. As long as the grid can be entered from the feed port, the size of the port is designed to fit, not the bigger the better. The larger the size of the mouth, the larger the equipment, the larger the number of shot blasters and the circulation of the entire equipment, so the larger the mouth, the higher the cost of the equipment.

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3. The components of the roller conveyor shot blasting machine:

(1) Blasting chamber-The blasting chamber is a large-capacity plate type box-shaped welding structure. The inner wall of the room is lined with a ZGMn13 wear-resistant protective plate. The cleaning operation is carried out in a sealed cavity. To achieve the purpose of improving the surface and internal quality of the workpiece, and ultimately improve the corrosion resistance of mechanical products and metal profiles, and improve the fatigue resistance of steel, and extend its service life; it is easy to dispose of waste.

(2) Conveyor roller conveyor-divided into indoor conveyor roller conveyor and loading and unloading section conveyor roller conveyor. PLC control, host computer dynamic simulation monitoring. The high chromium wear-resistant sheath and limit ring is used for the indoor roller way jacket. The high chromium wear-resistant sheath is used to protect the roller way and withstand the impact of projectiles. The limit ring can make the workpiece run at the predetermined position to prevent deviation and cause accidents.

(3) Bucket elevator-mainly composed of upper and lower transmission, cylinder, belt, hopper, etc. The upper and lower belt pulleys of the same diameter of the bucket elevator are welded into a polygonal structure with ribs, wheel plates, and hubs to enhance friction, avoid slipping, and prolong the service life of the belt. The bucket elevator casing is bent into shape, and the cover on the middle casing of the bucket elevator is opened to repair and replace the hopper and the lap belt. Open the cover on the lower shell of the bucket elevator to eliminate the blockage of the bottom projectile. Adjust the bolts on both sides of the upper shell of the bucket elevator to drive the pull plate to move up and down to maintain the tightness of the bucket elevator belt. The upper and lower pulleys adopt square outer spherical ball bearings, which can be adjusted automatically when subjected to vibration and impact, and have good sealing performance.

(4) Separator-The screw conveyor is mainly composed of a geared motor, a screw shaft, and a screw shell. The outer spherical ball bearing with a square seat is adopted, which can automatically adjust when subjected to vibration and impact, and has good sealing performance. In the painting industry, shot blasting machines are used for pretreatment of the surface of the workpiece, such as radiators, gas cylinders, steel drums, containers, barrels, tubes, drums, etc., to ensure the perfect adhesion of the paint on the workpiece.

(5) Abrasive conveying pipeline-This abrasive conveying pipeline has a double control function. Each gate is equipped with a gate to cut off the projectile from the separator to facilitate maintenance of the respective shot blasting device; the opening size of the gate can be Adjust the projectile flow rate, and can also arbitrarily combine the number of opening and closing gates according to the specifications of the cleaning workpiece to save energy, reduce the wear and tear on the machine, and ensure that the production needs are met.

(6) Shot blasting machine-the single-disc shot blasting machine is adopted, which has become the perfect high-level shot blasting machine in China today. It is mainly composed of a rotating mechanism, impeller, cover, directional sleeve, blasting wheel, guard plate, etc. The impeller is made of Cr40 material and forged, and the blades, directional sleeve, blasting wheel, and guard plate are all made of high chromium.

(7) Blowing device-This device uses a high-pressure fan, and multiple sets of elastic blowing nozzles with different angles are arranged in the auxiliary chamber of the chamber to blow and clean the projectiles remaining on the surface of the workpiece.

(8) Import and export sealing-the workpiece import and export sealing devices are made of rubber spring steel plate. In order to prevent the projectile from splashing out of the blasting chamber during shot blasting, multiple strengthened seals are set at the entrance and exit of the workpiece, which is characterized by elasticity. Strong, long life, excellent sealing effect.

(9) Dust collector system-bag filter: the dust collector system is mainly composed of a bag filter, fan, and dust removal pipeline. The dust removal efficiency can reach 99.5%. If there are too many shots at the bottom of the elevator, shut down in order and remove the shots. Now companies pay more and more attention to product quality and technology after shot blasting the surface of mechanical parts to remove rust.

(10) Electrical control-The electrical control system uses conventional control to control the entire machine. It adopts high-quality electrical components produced and has the advantages of high reliability and convenient maintenance. The main circuit is implemented by small circuit breakers and thermal relays to realize the control of each motor. Short circuit, phase loss, and overload protection. It is equipped with multiple emergency stop switches to facilitate emergency shutdown and prevent the expansion of accidents. There are safety protection switches on each access door of the blasting chamber and the blasting chamber. When any access door is opened, the shot blasting device cannot be started.

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