Shot blasting scraping device

Abstract

The utility model relates to the technical field of machining, in particular to a shot blasting scraping device which comprises a shot blasting machine and an outer conveying roller way used for conveying workpieces, the shot blasting machine is provided with an outlet used for allowing the workpieces to leave, a mounting support is fixedly connected to the outlet of the shot blasting machine, scraping leather is fixedly connected to the mounting support, and the angle between the scraping leather and the mounting support is adjustable. And in a natural state, the rubbing leather naturally falls down to cover the outlet of the shot blasting machine and is positioned between the outlet of the shot blasting machine and the outer conveying roller way. According to the shot blasting machine, by arranging the rubbing leather which is adjustable in shape and can cover the outlet of the shot blasting machine in the natural state, the air flow entering the shot blasting machine through the outlet of the shot blasting machine is reduced, the airflow turbulence state in the shot blasting machine is relieved, and then the probability that steel shots are embedded into workpieces is reduced; and the rubbing leather can also be attached to the workpiece, so that part of steel shots attached to the workpiece are separated, and the follow-up treatment difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to a shot blasting and scraping device. Background Technology

[0002] The working mechanism of a shot blasting machine is based on the physical process of high-speed steel shot impacting the surface of a workpiece. Within a carefully designed working chamber, steel shot, driven by a high-speed rotating impeller or high-pressure airflow, is propelled onto the workpiece surface with extremely high initial velocity. During this process, the steel shot acts like tiny "cannonballs," powerfully impacting impurities such as oxide scale and rust on the workpiece surface, causing them to peel off and be removed, thus achieving the purpose of cleaning the workpiece surface. Simultaneously, the impact of the steel shot can also form a dense, hardened layer on the workpiece surface, significantly improving the workpiece's fatigue strength and corrosion resistance. However, when the workpiece is removed from the shot blasting machine after the shot blasting process, a series of complex physical phenomena cause some steel shot to adhere to the workpiece surface, leading to the problem of steel shot being pressed into the workpiece.

[0003] A deeper analysis of the causes behind this phenomenon reveals that the physical environment at the exit of a shot blasting machine is extremely complex. The geometry and dimensions of the exit channel have a profound impact on the trajectory of the steel shot. An unsuitable channel can lead to uneven airflow distribution, creating localized turbulent areas. In these areas, the direction and speed of the steel shot become unpredictable, making it prone to secondary collisions with the workpiece, increasing the probability of it adhering to the workpiece surface, and complicating subsequent processing. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a shot blasting scraping device. By setting an adjustable scraping skin that can cover the shot blasting machine outlet in its natural state, the device reduces the airflow entering the shot blasting machine through the outlet, alleviates the turbulent airflow inside the machine, and thus reduces the probability of steel shot embedding into the workpiece. When the workpiece leaves the shot blasting machine, the scraping skin can also adhere to the workpiece, causing some of the steel shot attached to the workpiece to detach, reducing the difficulty of subsequent processing.

[0005] The above-mentioned objective of this application is achieved through the following technical solution:

[0006] A shot blasting scraping device includes a shot blasting machine and an outer conveyor roller for conveying workpieces. The shot blasting machine has an outlet for workpiece exit. A mounting bracket is fixedly connected to the outlet of the shot blasting machine. A scraping skin is fixedly connected to the mounting bracket. The angle between the scraping skin and the mounting bracket is adjustable. In a natural state, the scraping skin naturally falls down to cover the outlet of the shot blasting machine. The scraping skin is located between the outlet of the shot blasting machine and the outer conveyor roller.

[0007] Optionally, the mounting bracket includes a strip-shaped connecting strip and a pressure strip. Both ends of the pressure strip are fixed to the side of the connecting strip away from the shot blasting machine. The top of the scraped skin is located between the connecting strip and the pressure strip, and the connecting strip and the pressure strip press the scraped skin tightly.

[0008] Optionally, several transverse grooves are provided on the side of the scraped skin closest to the shot blasting machine. The central axis of the transverse grooves is parallel to the central axis of the mounting bracket, and the transverse grooves are linearly distributed at equal intervals.

[0009] Optionally, the scrape skin may also have several vertical grooves, the central axis of which is perpendicular to the central axis of the horizontal groove. All the vertical grooves penetrate the scrape skin, so that the bottom of the scrape skin forms several independent scrape strips.

[0010] Optionally, there are two mounting brackets and two scraper pads, with the two scraper pads mounted on two mounting brackets respectively, and the two scraper pads symmetrically distributed at the top and bottom of the shot blasting machine outlet.

[0011] Optionally, the scraper is tilted, and the distance between the scraper and the side wall of the shot blasting machine with the outlet gradually increases along the direction from the connection between the scraper and the mounting bracket towards the end of the scraper.

[0012] In summary, this application has the following beneficial technical effects:

[0013] By setting an adjustable-shape scraper that can cover the shot blasting machine outlet in its natural state, the airflow entering the shot blasting machine through the outlet is reduced, alleviating the turbulent airflow inside the shot blasting machine and thus reducing the probability of steel shot embedding into the workpiece. When the workpiece leaves the shot blasting machine, the scraper can also adhere to the workpiece, causing some of the steel shot attached to the workpiece to detach, reducing the difficulty of subsequent processing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a shot blasting machine without a scraper installed according to one embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the shot blasting machine after the scraper skin is installed according to one embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the side of the scraped skin near the shot peening machine according to one embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the side of the scraped skin away from the shot peening machine according to one embodiment of this application;

[0018] Figure 5 This is a schematic diagram of a double scraper and mounting bracket according to one embodiment of this application.

[0019] Attached label: 10, shot blasting machine;

[0020] 20. External conveyor roller conveyor;

[0021] 30. Mounting bracket; 31. Connecting strip; 32. Pressure strip;

[0022] 40. Scratches; 41. Horizontal grooves; 42. Vertical grooves; 43. Scratches. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application provides a shot blasting scraping device, as shown in the attached drawing. Figure 1 and attached Figure 2 The assembly includes a shot blasting machine 10 body and an outer conveyor roller 20 for conveying workpieces. The shot blasting machine 10 has an outlet for workpieces to leave. The outer conveyor roller 20 is located at the outlet of the shot blasting machine 10. A mounting bracket 30 is fixedly connected to the outlet of the shot blasting machine 10. The mounting bracket 30 can be connected by snaps or bolts to keep the position of the mounting bracket 30 fixed to the shot blasting machine 10 in the working state. A scraping skin 40 is fixedly connected to the mounting bracket 30. The scraping skin 40 is flexible and the angle between the scraping skin 40 and the mounting bracket 30 is adjustable. In the natural state, the scraping skin 40 hangs down naturally to cover the outlet of the shot blasting machine 10. The scraping skin 40 is located between the outlet of the shot blasting machine 10 and the outer conveyor roller 20.

[0025] The following section will provide further details based on specific usage scenarios.

[0026] During use, the operator adds workpieces into the shot blasting machine 10 as usual to carry out the shot blasting process. After the shot blasting process is completed, the workpiece leaves the shot blasting machine 10 from the outlet. During the process of leaving, the flexible scraper 40 adheres to the outer surface of the workpiece. As the outer conveyor roller 20 continues to rotate, the workpiece gradually leaves the shot blasting machine 10, and the scraper 40 also continues to contact and rub against the outer surface of the workpiece, thereby causing some of the steel shot, debris, etc. embedded in the outer surface of the workpiece to fall off, reducing the difficulty of subsequent processing.

[0027] Meanwhile, the scraper skin 40 covers the outlet of the shot blasting machine 10 in its natural state. That is, when the workpiece is shot blasted, the scraper skin 40 can partially block the outlet of the shot blasting machine 10, reduce the airflow entering the shot blasting machine 10 through the outlet of the shot blasting machine 10, thereby alleviating the turbulent airflow inside the shot blasting machine 10 and reducing the probability of steel shot embedding into the workpiece.

[0028] In summary, the embodiments of this application reduce the airflow entering the shot blasting machine 10 through the outlet of the shot blasting machine 10 by setting a scraper skin 40 with an adjustable shape that can cover the outlet of the shot blasting machine 10 in its natural state. This alleviates the turbulent airflow inside the shot blasting machine 10, thereby reducing the probability of steel shot embedding into the workpiece. When the workpiece leaves the shot blasting machine 10, the scraper skin 40 can also adhere to the workpiece, causing some of the steel shot attached to the workpiece to detach, reducing the difficulty of subsequent processing.

[0029] In the embodiments of this application, such as Figure 3 As shown, the mounting bracket 30 is used to fix the scraped skin 40. The mounting bracket 30 may include a strip-shaped connecting strip 31 and a pressure strip 32. Both ends of the pressure strip 32 are fixed to the side of the connecting strip 31 away from the shot blasting machine 10. The top of the scraped skin 40 is located between the connecting strip 31 and the pressure strip 32. The position of the scraped skin 40 is fixed by the compression of the connecting strip 31 and the pressure strip 32.

[0030] As one possible specific implementation method of this application, such as Figure 3 and 4 As shown, the scraper 40 has several transverse grooves 41 on the side near the shot blasting machine 10. The central axis of the transverse grooves 41 is parallel to the central axis of the mounting bracket 30. The transverse grooves 41 are linearly distributed at equal intervals. The arrangement of the transverse grooves 41 makes the scraper 40 easier to bend and allows it to fit more closely to the outer surface of the workpiece. At the same time, the arrangement of the transverse grooves 41 will generate several corresponding edge lines on the scraper 40. When the workpiece leaves, the transverse grooves 41 and edge lines on the scraper 40 can fit with the steel shot, making it easier for the steel shot to detach from the workpiece and reducing the difficulty of subsequent processing.

[0031] Based on this, the scraper 40 is also provided with several vertical grooves 42. The central axis of the vertical grooves 42 is perpendicular to the central axis of the horizontal grooves 41. The vertical grooves 42 all penetrate the scraper 40, so that the bottom of the scraper 40 forms several independent scraping strips 43. This allows the scraper 40 to fit the workpiece better, thereby improving the removal rate of steel shot on the workpiece and reducing the difficulty of subsequent processing.

[0032] As one possible specific implementation method of this application, such as Figure 5 As shown, there are two mounting brackets 30 and two scraper pads 40. The two scraper pads 40 are respectively mounted on the two mounting brackets 30, and the two scraper pads 40 are symmetrically distributed at the top and bottom of the outlet of the shot blasting machine 10.

[0033] After shot blasting, the workpiece enters the subsequent processing via the conveyor rollers. During this process, the workpiece contacts the conveyor rollers, and its own weight forces the steel shot to continuously press into the workpiece surface, causing surface defects. By symmetrically setting two scraping pads 40 at the top and bottom of the shot blasting machine 10 outlet, the bottom of the workpiece can be scraped before it contacts the outer conveyor roller 20. This not only further improves the steel shot removal rate on the outer surface of the workpiece but also reduces the probability of the steel shot continuously pressing into the workpiece surface due to its own weight, further reducing the difficulty of subsequent processing.

[0034] In some possible implementations of this application, the scraper 40 is inclined, and the distance between the scraper 40 and the side wall of the shot blasting machine 10 with the outlet gradually increases from the connection between the scraper 40 and the mounting bracket 30 towards the end of the scraper 40. By inclining the scraper 40, the scraper 40 can better fit the outer surface of the workpiece, making it easier for the steel shot to detach from the workpiece and reducing the difficulty of subsequent processing.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shot blasting and scraping device, characterized in that, Includes a shot blasting machine (10) and an outer conveyor roller (20) for conveying workpieces. The shot blasting machine (10) has an outlet for workpieces to leave. A mounting bracket (30) is fixedly connected to the outlet of the shot blasting machine (10). A scraper (40) is fixedly connected to the mounting bracket (30). The angle between the scraper (40) and the mounting bracket (30) is adjustable. In a natural state, the scraper (40) naturally falls down to cover the outlet of the shot blasting machine (10). The scraper (40) is located between the outlet of the shot blasting machine (10) and the outer conveyor roller (20).

2. The shot blasting and scraping device according to claim 1, characterized in that, The mounting bracket (30) includes a strip-shaped connecting strip (31) and a pressure strip (32). Both ends of the pressure strip (32) are fixed to the side of the connecting strip (31) away from the shot blasting machine (10). The top of the scraper (40) is located between the connecting strip (31) and the pressure strip (32). The connecting strip (31) and the pressure strip (32) press the scraper (40) together.

3. The shot blasting and scraping device according to claim 1, characterized in that, The scraped skin (40) has several transverse grooves (41) on the side near the shot blasting machine (10). The central axis of the transverse grooves (41) is parallel to the central axis of the mounting bracket (30), and the transverse grooves (41) are linearly distributed at equal intervals.

4. The shot blasting and scraping device according to claim 3, characterized in that, The scraper (40) is also provided with several vertical grooves (42), the central axis of the vertical groove (42) is perpendicular to the central axis of the horizontal groove (41), and the several vertical grooves (42) all penetrate the scraper (40), so that the bottom of the scraper (40) forms several independent scraping strips (43).

5. The shot blasting and scraping device according to claim 1, characterized in that, There are two mounting brackets (30) and two scraper skins (40). The two scraper skins (40) are respectively mounted on the two mounting brackets (30) and are symmetrically distributed at the top and bottom of the outlet of the shot blasting machine (10).

6. The shot blasting and scraping device according to claim 1, characterized in that, The scraper (40) is set at an angle, and the distance between the scraper (40) and the side wall of the shot blasting machine (10) with the outlet gradually increases along the connection between the scraper (40) and the mounting bracket (30) towards the end of the scraper (40).

Images