Crawler shot blasting machine

Abstract

A crawler belt shot blasting machine comprises a working box used for containing a workpiece to be machined, a crawler belt driven by a plurality of rotating shafts to rotate is arranged in the working box, the crawler belt comprises a C-shaped working crawler belt and a crawler belt to be cleaned, the working crawler belt is used for making contact with the workpiece to be machined, the crawler belt to be cleaned is linearly arranged, and a cleaning mechanism is arranged on the crawler belt to be cleaned. The cleaning mechanism comprises a brush rod, a plurality of sets of brushes are fixed to the brush rod in the direction facing the to-be-cleaned crawler belt, each set of brushes can make contact with the surface of the to-be-cleaned crawler belt, a plurality of adsorption holes are formed in the brush rod at intervals, and each adsorption hole is located between the adjacent brushes. And the adsorption holes are used for adsorbing flying dust in the working box. The shot blasting machine has the beneficial effects that foreign matters attached to the crawler belt can be effectively removed, and meanwhile, raised dust in the working box is adsorbed by utilizing the adsorption holes, so that dust pollution generated in the shot blasting process is reduced, and the cleanliness of a working environment is improved.

Description

Technical Field

[0001] This utility model relates to a surface treatment equipment for metal products, and more particularly to a track shot blasting machine. Background Technology

[0002] In existing technologies, tracked shot blasting machines are widely used in the field of metal surface treatment to clean oxide scale, rust, and other impurities from workpiece surfaces. Typical applications include the surface treatment of castings, forgings, and weldments, where high-speed shot impacts the workpiece surface to achieve cleaning or strengthening. During operation, the workpiece is placed on the track and, as the track rotates, enters the processing chamber. The shot is then propelled at high speed by the shot blaster onto the workpiece surface to complete the cleaning process.

[0003] Chinese patent document CN222155229U discloses a track shot blasting machine, including a processing box. Three rotating shafts are rotatably connected to the inner wall of the processing box. The track body is sleeved on the arc surface of the rotating shaft. The inner wall of the processing box is provided with a cleaning structure. The cleaning structure includes a rectangular plate, which is fixedly connected to the processing box. A connecting plate is slidably connected inside the rectangular plate. A brush rod is fixedly connected to the upper surface of the connecting plate and abuts against the surface of the track body. A top plate is fixedly connected to the upper surface of the perforated plate and is slidably connected to the connecting plate.

[0004] However, existing technologies have significant drawbacks. While the brush rods can effectively clean foreign matter (such as dust) adhering to the track surface during shot blasting, the lack of an effective dust collection mechanism results in the generation of substantial amounts of dust during the cleaning process. This dust not only spreads inside the processing chamber, reducing the effectiveness of shot blasting, but may also escape into the surrounding environment after the equipment has finished operating, posing a threat to the health of operators, especially as long-term inhalation of dust can lead to respiratory illnesses. Therefore, effectively controlling dust and achieving centralized dust collection has become an urgent problem to be solved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a tracked shot blasting machine that facilitates dust collection during the shot blasting process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a track shot blasting machine, comprising a work box for placing a workpiece to be processed, wherein a track is provided inside the work box and rotated by a plurality of rotating shafts, the track comprising a C-shaped working track for contacting the workpiece to be processed and a straight track to be cleaned, wherein a cleaning mechanism is provided on the track to be cleaned, the cleaning mechanism comprising a brush rod, wherein multiple sets of brushes are fixed on the brush rod facing the track to be cleaned and each set of brushes can contact the surface of the track to be cleaned, and a plurality of adsorption holes are spaced apart on the brush rod and each adsorption hole is located between adjacent brushes, the adsorption holes being used to adsorb dust inside the work box.

[0007] The beneficial effects of this invention are as follows: by arranging multiple sets of brushes on the brush rod and ensuring they contact the surface of the track to be cleaned, foreign matter attached to the track can be effectively removed. Simultaneously, the adsorption holes absorb dust from inside the working chamber, thereby reducing dust pollution generated during shot blasting and improving the cleanliness of the working environment. As a preferred embodiment, the adsorption holes can be connected to a dust removal system via a negative pressure device, allowing the holes to not only adsorb dust but also collect the adsorbed impurities into an external filter, further improving cleaning efficiency and reducing maintenance costs.

[0008] Furthermore, a shot blaster for spraying shot is provided above the working box, and the diameter of the shot used in the shot blaster is larger than the aperture of the adsorption hole.

[0009] By configuring the shot blaster and designing the shot diameter to be larger than the aperture of the adsorption pores, it is possible to prevent shot from being sucked into the adsorption pores, thus ensuring the normal operation of the shot blaster and the functional stability of the adsorption pores. This design not only ensures the high efficiency of the shot blasting process but also prevents equipment blockage or damage caused by shot mis-absorption. As a preferred approach, a screening device can be added at the outlet of the shot blaster to screen out excessively large or small shot particles, further optimizing the quality and effectiveness of shot blasting while minimizing the impact on subsequent cleaning mechanisms.

[0010] Furthermore, at least two brush rods are provided, and the cleaning mechanism also includes a rotating motor that is provided with a corresponding number of brush rods and connected to one end of the brush rods to drive the brush rods to rotate. When the rotating motor drives the brush rods to rotate, at least one brush rod has a brush on it that abuts against the conveyor belt to be cleaned. The rotation of the brush rods can cause the adsorption holes to deviate from the vertical position so that the impurities attached to their surfaces fall off.

[0011] By using at least two brush rods and driving them to rotate with a motor, at least one brush rod's brushes can remain in contact with the conveyor belt being cleaned throughout the cleaning process, achieving continuous cleaning. Furthermore, the design of the suction holes being offset from vertical position as the brush rods rotate helps to automatically detach impurities adhering to the surface of the suction holes, preventing clogging and extending the equipment's lifespan. As a preferred method, a limit sensor can be installed at the other end of the brush rod to detect its rotation angle, allowing for precise control of the brush rod's movement and further improving cleaning efficiency and reliability.

[0012] Furthermore, the cleaning mechanism also includes an air source configured according to the number of brush rods. When the brush contacts the track to be cleaned, the air source causes the adsorption holes to adsorb the dust generated inside the working box, and when the brush leaves the track to be cleaned, the adsorption holes spray out the impurities attached to it.

[0013] By setting up an air source and using it in conjunction with the suction holes, negative pressure is created when the brush contacts the conveyor belt to be cleaned, adsorbing and dispersing dust. When the brush leaves the belt, positive pressure is switched to blow through the suction holes, thus achieving automatic cleaning of the holes. This design improves the utilization rate of the suction holes and reduces the need for manual intervention, significantly enhancing the automation level and work efficiency of the equipment. As a preferred approach, the air source can control the airflow direction via a solenoid valve and combine this with a time relay to set the blowing cycle, achieving more precise airflow management and further optimizing the cleaning effect.

[0014] Furthermore, a storage box is detachably provided between the air source and the brush rod, and a filter screen is provided at the end of the storage box facing the air source.

[0015] By installing a detachable collection box between the air source and the brush rod, and attaching a filter screen to the end of the collection box facing the air source, impurities discharged from the adsorption holes can be effectively collected, while preventing impurities from re-entering the working chamber and causing secondary pollution. This design not only facilitates regular cleaning and replacement of the collection box but also improves the environmental performance of the entire system. As a preferred approach, a multi-layered filtration structure, such as a combination of coarse and fine filters, can be added inside the collection box to accommodate the separation needs of impurities of different particle sizes, thereby further improving impurity collection efficiency and reducing the difficulty of subsequent processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the brush handle in an embodiment of this utility model;

[0018] Figure 3This is a partial enlarged view of the adsorption pore in an embodiment of the present invention.

[0019] Figure 4 This is an internal view of the storage box in an embodiment of the present invention. Detailed Implementation

[0020] This utility model embodiment provides a track shot blasting machine, such as... Figure 1-4 As shown, this tracked shot blasting machine mainly includes a work box 1 for holding the workpiece to be processed. Inside the work box 1 are tracks 2, which consist of several rotating shafts 21 driving the tracks. These tracks 2 are divided into two parts: one part is a C-shaped working track 22, which directly contacts the workpiece; the other part is a straight track 23 to be cleaned, used to remove impurities adhering to its surface. To achieve effective cleaning of the track system, a cleaning mechanism 3 is provided on the track 23 to be cleaned.

[0021] The core component of the cleaning mechanism 3 is the brush rod 31, on which multiple sets of brushes 311 are fixed. These brushes all face the direction of the conveyor belt 23 to be cleaned, and each set of brushes can contact the surface of the conveyor belt 23 to be cleaned. Adsorption holes 312 are also formed between adjacent brushes to adsorb dust generated inside the working chamber 1 due to shot blasting. In addition, a shot blaster (not shown) is installed above the working chamber 1 for spraying shot. The diameter of the shot used in the shot blaster (not shown) is larger than the diameter of the adsorption holes 312 to prevent the shot from being sucked into the adsorption holes and causing blockage.

[0022] To further enhance the cleaning effect, the cleaning mechanism 3 is equipped with at least two brush rods 31, each connected to a rotating motor 32 at one end to drive the brush rod to rotate. When the rotating motor 32 is working, the brush on at least one brush rod will press against the conveyor belt 23 to be cleaned. At the same time, rotating the brush rod can deviate the vertical position of the adsorption holes 312, thereby causing impurities attached to the surface of the adsorption holes to fall off. In addition, the cleaning mechanism 3 also includes an air source 33 corresponding to the number of brush rods. The air source 33 can cause the adsorption holes 312 to adsorb dust in the working box 1 when the brush contacts the conveyor belt 23, and cause the adsorption holes 312 to spray out the impurities attached to it when the brush leaves the conveyor belt 23. To facilitate the collection and filtration of impurities, a storage box 34 is detachably connected between the air source 33 and the brush rod 31. A filter screen 341 is provided at the end of the storage box 34 facing the air source to filter out larger particles.

[0023] The working principle of this track shot blasting machine is as follows: When the shot blaster (not shown in the figure) sprays shot onto the workpiece, the impact of the shot on the workpiece surface generates a large amount of dust. At this time, the brush rod 31 on the track 23 to be cleaned is rotated by the rotating motor 32, and the brush 311 continuously contacts the surface of the track 2 to be cleaned, removing impurities. At the same time, the suction hole 312 uses the air source 33 to adsorb the dust in the working chamber 1. When the brush rod 31 rotates periodically until the suction hole 312 deviates from the vertical position, the impurities attached to the surface of the suction hole 312 will fall off under the action of gravity. When the brush detaches from the track 23 to be cleaned, the air source 33 switches its function, causing the impurities to be sprayed out of the suction hole 312. The whole process achieves efficient cleaning of the track 2 and effective treatment of dust in the working chamber 1.

[0024] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. A tracked shot blasting machine, comprising a work box for holding a workpiece to be processed, wherein a track driven to rotate by a plurality of rotating shafts is disposed within the work box, the track comprising a C-shaped working track for contacting the workpiece to be processed and a straight track to be cleaned, wherein a cleaning mechanism is disposed on the track to be cleaned, characterized in that: The cleaning mechanism comprises a brush rod, a plurality of groups of brushes are fixed on the brush rod towards the direction of the belt to be cleaned, each group of brushes can contact the surface of the belt to be cleaned, a plurality of suction holes are arranged on the brush rod in gaps, and each suction hole is located between adjacent brushes, and the suction holes are used to suck dust generated inside the working box.

2. The crawler blast machine according to claim 1, characterized in that: A shot blasting device is arranged above the working box to spray shot blasting, and the diameter of the shot blasting used in the shot blasting device is greater than the diameter of the suction holes.

3. The crawler blast machine according to claim 2, characterized in that: The brush rod is provided with at least two brush rods, the cleaning mechanism further comprises a rotating motor corresponding to the number of brush rods and connected to one end of the brush rod to drive the brush rod to rotate, when the rotating motor drives the brush rod to rotate, the brushes on at least one brush rod abut against the belt to be cleaned, and the rotation of the brush rod can drive the suction holes to deviate from the vertical position so that the impurities attached to the surface of the suction holes fall off.

4. The crawler blast machine of claim 3, wherein: The cleaning mechanism further comprises a gas source corresponding to the number of brush rods, the gas source makes the suction holes suck the dust generated in the working box when the brushes contact the belt to be cleaned, and the gas source makes the suction holes spray the impurities attached to the surface of the suction holes when the brushes are separated from the belt to be cleaned.

5. The crawler blast machine of claim 4, wherein: A storage box is detachably arranged between the gas source and the brush rod, and a filter screen is arranged on the end of the storage box towards the gas source.

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