Special shot blasting machine with protection mechanism
By setting up a cross-shaped double-layered curtain and baffle adjustment mechanism on the shot blasting machine, combined with a spiral blade and a vacuum cleaner, the problems of shot blasting splash and collection are solved, achieving effective protection and cleaning of shot blasting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-03
AI Technical Summary
When shot blasting comes into contact with the surface of the casting, it bounces and splashes. The thin curtain is easily shaken under a large impact, causing the shot to fly out from the gap in the curtain. Existing equipment lacks effective protection.
A specialized shot blasting machine with a protective mechanism was designed, including two layers of curtains placed in a cross pattern, a baffle adjustment mechanism, and a recovery assembly. The baffle reduces curtain swaying, and the spiral blades and vacuum cleaner collect the shot and clean up the dust.
It effectively prevents shot blasting from splashing onto the outside of the machine casing, enabling the collection and cleaning of shot blasting, and reducing the need for secondary processing of the equipment.
Smart Images

Figure CN224074140U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shot blasting machine technology, and in particular relates to a special shot blasting machine with a protective mechanism. Background Technology
[0002] A shot blasting machine is a casting equipment that uses high-speed shot to clean or strengthen the surface of castings. Its main functions include sand removal, core removal, and cleaning of castings. It is mainly driven by an electric motor or pneumatic motor to rotate the shot blasting wheel at high speed, and then the accelerated rotating shot blasting wheel carries the shot blasting material and sprays it onto the surface of the workpiece to achieve cleaning, polishing and other effects.
[0003] During shot blasting, the shot bounces off the surface of the casting and splashes. To prevent this splashing out of the machine casing, a curtain is used to block it. However, if the curtain is too light or the impact of the shot blasting is too great, the curtain may shake significantly, allowing the shot to easily fly out through the gaps between the curtains. To solve this problem, there is an urgent need for a special shot blasting machine with a protective mechanism. Utility Model Content
[0004] The purpose of this utility model is to solve the problem that during the shot blasting process, shot bounces and splashes after contacting the surface of the casting. In order to prevent the shot from splashing out of the machine casing, a curtain is used to block it. However, due to the lightness of the curtain in some equipment or the large impact of shot blasting, the curtain will shake a lot, which makes the shot easily fly out from the gap between the shaking curtain. Therefore, a special shot blasting machine with a protective mechanism is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a special shot blasting machine with a protective mechanism, comprising a housing, a shot blasting module at the top of the housing, a conveying shaft rotatably connected to the housing through a groove on its inner wall, a splash guard assembly on one side of the housing, a recovery assembly on another side of the housing, and an opening on one side of the housing; the splash guard assembly includes a mounting frame, multiple insertion holes in the mounting frame, a stop bar slidably connected in the insertion holes, a screw threadedly connected to the mounting frame through a threaded hole on one side of the mounting frame, and a curtain fixedly connected to the bottom of the mounting frame.
[0006] As a further description of the above technical solution:
[0007] The curtain has two layers arranged in a crisscross pattern, and one side of the mounting bracket is fixedly connected to the housing.
[0008] As a further description of the above technical solution:
[0009] The mounting bracket is located above the opening on one side of the housing, and the overall width of the curtain is larger than the width of the opening on one side of the housing.
[0010] As a further description of the above technical solution:
[0011] The recycling assembly includes a recycling bin, a conveying pipe fixedly connected to one side of the recycling bin, and a conveying pipe fixedly connected to the housing on the other side. A rotating rod is rotatably connected to the recycling bin through a through hole inside it.
[0012] As a further description of the above technical solution:
[0013] The other end of the rotating rod is rotatably connected to the housing through a through hole on one side of the housing. One end of the rotating rod is fixedly connected to a motor, and one end of the motor is fixedly connected to the housing.
[0014] As a further description of the above technical solution:
[0015] A spiral blade is fixedly connected to the outer wall of the rotating rod, and the spiral blade is located at the bottom of the inner casing. A second pulley is fixedly connected to the other end of the rotating rod.
[0016] As a further description of the above technical solution:
[0017] A vacuum cleaner is fixedly connected to the top of the recycling bin, and a first pulley is fixedly connected to one end of the rotating shaft of the vacuum cleaner. The outer wall of the first pulley is provided with a belt.
[0018] As a further description of the above technical solution:
[0019] The inner side of the belt is tightly fitted to the outer wall of the second pulley. A dust hood is fixedly connected to the other end of the vacuum cleaner. The bottom end of the dust hood is fixedly connected to the conveying pipe and a filter screen is provided at the bottom end of the dust hood.
[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0021] 1. In this utility model, by providing a baffle bar inside, during shot blasting, the screw can be rotated to move it, reducing the force between the screw and the baffle bar. The baffle bar can then be slid down to extend a suitable length, thus reducing the amplitude of the curtain's swing when shot blasting splashes onto it. This further prevents shot blasting from splashing onto the outside of the machine casing. Through this design, if shot blasting splashes onto the curtain during the shot blasting process, the baffle bar can block the curtain, reducing its swing amplitude and preventing the shot blasting from flying out through the gaps in the curtain's swing, thereby further preventing shot blasting from splashing.
[0022] 2. In this utility model, a vacuum cleaner is installed inside. During the shot blasting process, the shot falls to the bottom of the machine casing, thereby starting the motor to drive the rotating rod to rotate and drive the spiral blade to rotate. The spiral blade then transports the shot from the machine casing through the conveying pipe to the recycling bin. At the same time, the rotating rod drives the second pulley to rotate, and the belt drives the first pulley to rotate, thereby driving the rotating shaft of the vacuum cleaner to rotate. As the vacuum cleaner operates, it sucks up the dust in the conveying pipe through the suction hood. Through this design, the shot can be transported to the recycling bin by the rotating rod driving the spiral blade during the shot blasting process, and the dust in the shot can be sucked out by the vacuum cleaner, thus ensuring the cleanliness of the shot and eliminating the need for further processing. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of a special shot blasting machine with a protective mechanism.
[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of a special shot blasting machine with a protective mechanism.
[0025] Figure 3 This is a three-dimensional schematic diagram of the anti-splash component in a special shot blasting machine with a protective mechanism.
[0026] Figure 4 This is a three-dimensional schematic diagram of the explosive structure of a recovery component in a specialized shot blasting machine with a protective mechanism.
[0027] Legend:
[0028] 1. Shot blasting module; 2. Housing; 3. Recycling assembly; 31. Motor; 32. Spiral blade; 33. Rotating rod; 34. Conveying pipe; 35. Dust hood; 36. Vacuum cleaner; 37. First pulley; 38. Belt; 39. Second pulley; 310. Recycling bin; 4. Splash shield assembly; 41. Insertion hole; 42. Screw; 43. Mounting bracket; 44. Baffle bar; 45. Door curtain; 5. Conveying shaft. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-4This utility model provides a technical solution: a special shot blasting machine with a protective mechanism, including a housing 2, a shot blasting module 1 at the top of the housing 2, a conveying shaft 5 rotatably connected to the housing 2 through a groove opened in its inner wall, a splash guard 4 and a recovery component 3 on one side of the housing 2, and an opening on one side of the housing 2; the splash guard 4 includes a mounting bracket 43, a plurality of insertion holes 41 are opened in the mounting bracket 43, a stop bar 44 is slidably connected in the insertion holes 41, a screw 42 is threadedly connected to the mounting bracket 43 through a threaded hole opened on one side of the mounting bracket 43, and a curtain 45 is fixedly connected to the bottom end of the mounting bracket 43.
[0031] The curtain 45 has two layers and is arranged in a cross pattern. The mounting bracket 43 is fixedly connected to the housing 2 on one side. The mounting bracket 43 is located above the opening on one side of the housing 2. The overall width of the curtain 45 is larger than the width of the opening on one side of the housing 2.
[0032] The specific implementation method is as follows: During shot blasting, the screw 42 can be rotated to move it and reduce the force between the screw 42 and the stop rod 44. The stop rod 44 can be slid down to extend to a suitable length and adjusted according to the shape of the workpiece being processed. Then, the screw 42 can be rotated to extend into the mounting bracket 43, thereby increasing the force between the screw 42 and the stop rod 44 and preventing the stop rod 44 from moving. This allows the stop rod 44 to reduce the swing amplitude of the curtain when shot blasting splashes onto the curtain 45, thereby further preventing shot blasting from splashing onto the outside of the machine housing 2.
[0033] The recycling assembly 3 includes a recycling bin 310. A conveying pipe 34 is fixedly connected to one side of the recycling bin 310, and the other side of the conveying pipe 34 is fixedly connected to the housing 2. A rotating rod 33 is rotatably connected to the recycling bin 310 through a through hole inside it. The other end of the rotating rod 33 is rotatably connected to the housing 2 through a through hole on one side of the housing 2. A motor 31 is fixedly connected to one end of the rotating rod 33, and one end of the motor 31 is fixedly connected to the housing 2. A spiral blade 32 is fixedly connected to the outer wall of the rotating rod 33. The spiral blade 32 is located at the bottom of the inner casing 2. The other end of the rotating rod 33 is fixedly connected to the second pulley 39. The top of the recycling bin 310 is fixedly connected to the vacuum cleaner 36. One end of the rotating shaft of the vacuum cleaner 36 is fixedly connected to the first pulley 37. The outer wall of the first pulley 37 is provided with a belt 38. The inner side of the belt 38 is tightly fitted with the outer wall of the second pulley 39. The other end of the vacuum cleaner 36 is fixedly connected to the vacuum hood 35. The bottom end of the vacuum hood 35 is fixedly connected to the conveying pipe 34 and a filter screen is provided at the bottom end of the vacuum hood 35.
[0034] The specific implementation method is as follows: During the shot blasting process, the shot falls to the bottom of the machine housing 2, thereby starting the motor 31 to drive the rotating rod 33 to rotate and drive the spiral blade 32 to rotate. The spiral blade 32 then transports the shot from the machine housing 2 through the conveying pipe 34 to the recycling box 310. At the same time, the rotating rod 33 drives the second pulley 39 to rotate. Since the belt 38 is in close contact with the first pulley 37 and the second pulley 39, the rotation of the second pulley 39 drives the first pulley 37 to rotate through the belt 38, thereby driving the shaft of the vacuum cleaner 36 to rotate and make it run. Since the radius ratio between the first pulley 37 and the second pulley 39 is relatively large, both can reach a suitable speed. As the vacuum cleaner 36 operates, it sucks up the dust in the conveying pipe 34 through the dust suction hood 35.
[0035] Working principle: During shot blasting, the screw 42 can be rotated to move it, reducing the force between the screw 42 and the stop rod 44. The stop rod 44 can then be slid down to extend to a suitable length, adjusted according to the shape of the workpiece. Rotating the screw 42 allows it to extend into the mounting bracket 43, increasing the force between the screw 42 and the stop rod 44 and preventing the stop rod 44 from moving. This reduces the amplitude of the curtain's swing when shot blasting splashes onto the curtain 45, further preventing shot blasting from splashing onto the outside of the machine housing 2. During shot blasting, the shot falls to the bottom of the machine housing 2, activating the motor 31 to rotate. The rod 33 rotates, driving the spiral blade 32 to rotate as well. The spiral blade 32 then transports the shot blasting material from the housing 2 through the conveying pipe 34 to the recycling box 310. Simultaneously, the rotating rod 33 drives the second pulley 39 to rotate. Since the belt 38 is in close contact with the first pulley 37 and the second pulley 39, the rotation of the second pulley 39 drives the first pulley 37 to rotate via the belt 38. This, in turn, drives the shaft of the vacuum cleaner 36 to rotate, enabling it to operate. Because the radius ratio between the first pulley 37 and the second pulley 39 is relatively large, both pulleys can reach a suitable rotational speed. As the vacuum cleaner 36 operates, it sucks up the dust in the conveying pipe 34 through the suction hood 35.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A dedicated shot-blasting machine with a protection mechanism, comprising a housing (2), characterized in that: The shell (2) top is equipped with the shot blasting module (1), the shell (2) is connected with the conveying shaft (5) through the groove of its inner wall, the shell (2) one side is equipped with the splash guard assembly (4), the shell (2) one side is equipped with the recycling assembly (3), the shell (2) one side is equipped with the opening, the splash guard assembly (4) includes the mounting bracket (43), the mounting bracket (43) is equipped with a plurality of jack (41) in, the jack (41) is connected with the blocking rod (44) in sliding, the mounting bracket (43) is connected with the screw rod (42) through the thread hole of its one side, the mounting bracket (43) bottom is fixedly connected with the door curtain (45).
2. A dedicated shot blasting machine having a protection mechanism according to claim 1, characterized in that, The door curtain (45) is equipped with two layers and is crossed, the mounting bracket (43) one side is fixedly connected with the shell (2).
3. A dedicated shot blasting machine having a protection mechanism according to claim 2, characterized in that, The mounting bracket (43) is located above the opening of the shell (2) one side, the overall width of the door curtain (45) is greater than the width of the opening of the shell (2) one side.
4. The dedicated shot blaster having a protection mechanism according to claim 3, wherein The recycling assembly (3) includes the recycling box (310), the recycling box (310) one side is fixedly connected with the conveying pipe (34), the conveying pipe (34) other side is fixedly connected with the shell (2), the recycling box (310) is rotatably connected with the rotating rod (33) through the through hole of its inner.
5. A dedicated shot blasting machine having a protection mechanism according to claim 4, characterized in that, The rotating rod (33) other end is rotatably connected with the shell (2) through the through hole of one side, the rotating rod (33) one end is fixedly connected with the motor (31), the motor (31) one end is fixedly connected with the shell (2).
6. A dedicated shot blaster having a protection mechanism according to claim 5, wherein The rotating rod (33) outer wall is fixedly connected with the spiral blade (32), the spiral blade (32) is located in the bottom of the shell (2), the rotating rod (33) other end is fixedly connected with the second pulley (39).
7. A dedicated shot blasting machine having a protection mechanism according to claim 6, characterized in that, The recycling box (310) top is fixedly connected with the dust collector (36), the rotating shaft one end of the dust collector (36) is fixedly connected with the first pulley (37), the first pulley (37) outer wall is equipped with the belt (38).
8. A dedicated shot blaster having a protection mechanism according to claim 7, characterized in that, The belt (38) inner side is closely attached to the outer wall of the second pulley (39), the dust collector (36) other end is fixedly connected with the dust cover (35), the dust cover (35) bottom is fixedly connected with the conveying pipe (34) and the dust cover (35) bottom is equipped with the filter screen.