Shot blasting machine for valve casting

Abstract

The utility model discloses a shot blasting machine of a valve casting, which relates to the technical field of casting surface treatment equipment, and comprises a shot blasting chamber, a base, a suspension chain conveying line, an upper shot blasting device and a lower shot blasting device, the shot blasting chamber is arranged on the base, the suspension chain conveying line is arranged on the shot blasting chamber, a suspension chain conveying line passing cavity is arranged on the shot blasting chamber, and the upper shot blasting device and the lower shot blasting device are arranged in the suspension chain conveying line passing cavity. A suspension chain conveying line is arranged in the shot blasting chamber, a track and a chain of the suspension chain conveying line penetrate through a line passing cavity of the suspension chain conveying line, and an upper shot blasting device and a lower shot blasting device are installed on the upper inclined face and the lower inclined face of the two sides of the shot blasting chamber respectively. And continuous shot blasting can be achieved, the shot blasting efficiency is higher, workers only need to hang the valve castings on the suspension chain conveying line lifting appliance on the feeding side and unload the valve castings from the suspension chain conveying line lifting appliance on the discharging side, and the manual labor intensity can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting surface treatment equipment, in particular to a shot blasting machine for valve castings. Background Art

[0002] Shot blasting machine is a kind of casting equipment that uses shot blasting device to spray high-speed projectiles to clean or strengthen the surface of castings. Its projectiles are mainly steel sand. During the operation of the shot blasting machine, steel sand is thrown onto the surface of the casting at a certain speed to remove rust and other attachments on the surface of the casting, thereby making the surface of the casting bright.

[0003] During the casting process, valve castings will form impurities such as scale, rust, and oil on their surfaces due to contact with air and water. These impurities will seriously affect the surface finish and quality of the castings, thereby reducing their service life and safety. Shot blasting can effectively remove these impurities, making the surface clean and smooth, and improving the surface quality and service life. After searching, the patent authorization announcement number is CN 218904958 U disclosed a shot blasting machine for valve castings, "including a shot blasting machine box with shot blasters arranged on all sides, a frame arranged on the upper end of the shot blasting machine box, a crane arranged on the frame and capable of moving back and forth, a hanging rod rotatably connected to the crane rope and slidably arranged in the shot blasting machine box, and a hanging frame suspended on the hanging rod, the hanging rod including a hanging rod with a hook at the lower end and connected to the crane at the upper end, a rotating gear is provided on the outer side of the middle end of the hanging rod, and a placement groove with a "7"-shaped structure is opened on the upper end of the shot blasting machine box". However, the above-mentioned shot blasting machine needs to shot blast the valve castings one by one during use, that is, the previous valve casting needs to be removed from the hook before the new valve casting can be hung and shot blasted. This shot blasting is discontinuous, the shot blasting efficiency is low, and the labor intensity of personnel is high. Utility Model Content

[0004] The purpose of the utility model is to provide a shot blasting machine for valve castings to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The lifting mechanism that lifts up and down of described lifting mechanism is lifted up, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and lifting mechanism is lifted up and down, and

[0007] As a further solution of the present invention: the shot blasting port of the upper shot blasting machine is set to be tilted 45° downward, and the shot blasting port of the lower shot blasting machine is set to be tilted 45° upward.

[0008] As a further solution of the present invention: a slot is provided on the top of the shot blasting chamber to facilitate the passage of the suspension chain conveyor line hanger, and dust-blocking brushes are symmetrically installed on both sides of the slot.

[0009] As a further solution of the present invention: a material guide hopper connected to the shot blasting chamber is installed on the base, and a material receiving trolley is provided below the material guide hopper.

[0010] As a further solution of the present invention: the hanger of the suspension chain conveyor line is hung on the flange mounting hole of the valve casting.

[0011] As a further solution of the present invention: the cross section of the shot blasting chamber is a regular octagon.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model cooperates with the suspension chain conveyor line and the shot blasting room to suspend and convey the valve castings that need to be shot blasted to the shot blasting room for shot blasting, and can realize continuous shot blasting, with higher shot blasting efficiency. The personnel only need to hang the valve castings on the suspension chain conveyor line hanger on the feeding side and remove the valve castings from the suspension chain conveyor line hanger on the discharging side, which can reduce the labor intensity.

[0014] 2. The utility model installs shot blasting machines on the four inclined surfaces of the regular octagonal shot blasting chamber. The four shot blasting machines spray shot blasting particles from four different angles to the valve casting suspended in the middle of the shot blasting chamber. In this way, the outer surface of the valve casting can be fully covered, making the shot blasting more comprehensive and the shot blasting effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall top view of a shot blasting machine for valve castings.

[0016] Figure 2 A shot blasting machine for valve castings Figure 1 Side view of the shot blasting room.

[0017] Figure 3 A shot blasting machine for valve castings Figure 1 Front section of the shot blasting room.

[0018] Figure 4 A shot blasting machine for valve castings Figure 1 Front view of the shot blasting room.

[0019] 1. Shot blasting chamber; 2. Suspension chain conveyor line; 3. Upper shot blasting wheel; 4. Lower shot blasting wheel; 5. Suspension chain conveyor line cavity; 6. Tension spring; 7. Hinge; 8. Guide hopper; 9. Base; 10. Material collection trolley; 11. Dust shield brush; 12. Dust shield plate; 13. Feed port; 14. Discharge port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 In the embodiment of the utility model, a shot blasting machine for valve castings includes a shot blasting chamber 1, a base 9, a suspension chain conveyor line 2, an upper shot blasting wheel 3 and a lower shot blasting wheel 4. The shot blasting chamber 1 is installed on the base 9, and a suspension chain conveyor line 2 is provided on the shot blasting chamber 1. The suspension chain conveyor line 2 can be installed on the roof or supported by a bracket. A suspension chain conveyor line passing cavity 5 is installed on the shot blasting chamber 1, and the track and chain of the suspension chain conveyor line 2 pass through the suspension chain conveyor line passing cavity 5.

[0022] See also Figure 2-4 , an upper shot blasting wheel 3 and a lower shot blasting wheel 4 are respectively installed on the upper and lower inclined surfaces on both sides of the shot blasting chamber 1. The shot blasting port of the upper shot blasting wheel 3 is set at a downward tilt of 45 degrees, and the shot blasting port of the lower shot blasting wheel 4 is set at an upward tilt of 45 degrees. This design can make the shot blasting wheel spray area larger and can also be used to shot blast the gaps in the valve casting. The hanger of the suspension chain conveyor line 2 is hung on the flange mounting hole of the valve casting;

[0023] The cross section of the shot blasting chamber 1 is a regular octagon, and this shape allows four shot blasting wheels to be installed on the shot blasting chamber 1 at an angle of 45 degrees;

[0024] The upper shot blasting wheel 3 and the lower shot blasting wheel 4 on the same side are externally connected to a shot blasting hopper, and shot blasting particles are continuously transported to the upper shot blasting wheel 3 and the lower shot blasting wheel 4 through the shot blasting hopper.

[0025] See also Figure 3-4 The front and rear ends of the shot blasting chamber 1 are respectively provided with a feed port 13 and a discharge port 14. Two dust shields 12 are installed on the feed port 13 and the discharge port 14. The dust shield 12 is installed with a hinge 7, and the dust shield 12 is hinged to the shot blasting chamber 1 through the hinge 7. A tension spring 6 is provided on the outside of the dust shield 12 installed on the feed port 13. The two ends of the tension spring 6 are fixedly connected to the dust shield 12 and the shot blasting chamber 1 respectively. A tension spring 6 is provided on the inside of the dust shield 12 installed on the discharge port 14. The two ends of the tension spring 6 are fixedly connected to the dust shield 12 and the shot blasting chamber 1 respectively. The shot blasting chamber 1 is fixedly connected, and the dust shield 12 can close the feed port 13 and the discharge port 14 of the shot blasting chamber 1 to reduce dust leakage. The hinge 7 is a right-angle hinge. The dust shield 12 installed on the feed port 13 can only be rotated inward by 0°-90°. When the dust shield 12 installed on the feed port 13 is reset, the two dust shields 12 are spliced ​​and pressed against each other. The dust shield 12 installed on the discharge port 14 can only be rotated outward by 0°-90°. When the dust shield 12 installed on the discharge port 14 is reset, the two dust shields 12 are spliced ​​and pressed against each other.

[0026] A slot is provided on the top of the shot blasting chamber 1 for the suspension chain conveyor line 2 to pass through, and dust-blocking brushes 11 are symmetrically installed on both sides of the slot. The setting of the dust-blocking brushes 11 can block the slot to reduce the leakage of dust in the shot blasting chamber 1. At the same time, the dust-blocking brushes 11 are made of soft bristles and will not block the normal passage of the suspension chain conveyor line 2 hanger;

[0027] A material guide hopper 8 connected to the shot blasting chamber 1 is installed on the base 9, and a material receiving trolley 10 is provided below the material guide hopper 8. The setting of the material receiving trolley 10 can conveniently receive the waste thrown during shot blasting for recycling. The material receiving trolley 10 is adapted to the size of the inner cavity of the base 9.

[0028] It should be noted that the hanging chain conveyor line 2 and the shot blaster are both existing mature conveying equipment. Their working principle is to use a motor to drive the chain, and the sling is mounted on the chain to achieve continuous material transportation. During the transportation process, the conveying speed can be adjusted as needed. It is suitable for various process links, such as material loading, surface treatment, painting, drying, cooling, and finished product unloading. The working principle of the shot blaster is to use a motor to drive the impeller body to rotate. The impeller body is equipped with blades and a shot-splitting wheel. The projectile obtains its initial velocity under the action of the shot-splitting wheel and is projected onto the workpiece surface through a directional sleeve.

[0029] The working principle of this utility model is:

[0030] During use, after the suspension chain conveyor line 2 is opened, the flanges at both ends of the valve casting that need to be shot blasted are first hung on the hooks on the suspension chain conveyor line 2, so that the valve casting enters the shot blasting chamber 1 under the transportation of the suspension chain conveyor line 2. When entering the shot blasting chamber 1, the valve casting will push the dust shield 12 on the feed port 13 inward. When the valve casting passes through, the dust shield 12 will return to its original state under the pull of the tension spring 6 on its outer side to close the feed port 13. Then the upper shot blaster 3 and the lower shot blaster 4 installed on both sides of the shot blasting chamber 1 will spray shots from different angles. The particles act on the surface of the valve casting, and the impurities and rust on the surface of the valve casting are removed by the collision of the shot blasting particles with the valve casting. Then, the valve casting is transported out from the discharge port 14 of the shot blasting chamber 1 under the transportation of the suspension chain conveyor line 2. When being transported out of the shot blasting chamber 1, the valve casting will push the dust shield 12 on the discharge port 14 outward. When the valve casting passes through, the dust shield 12 returns to its original position under the pull of the tension spring 6 on its inner side to close the discharge port 14. The personnel can then unload the valve casting transported out of the discharge port 14. Such a cycle operation can achieve continuous shot blasting.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shot blasting machine for valve castings, comprising a shot blasting chamber (1), a base (9), a hanging chain conveyor line (2), an upper shot blasting wheel (3) and a lower shot blasting wheel (4), characterized in that: A shot blasting chamber (1) is installed on the base (9), a hanging chain conveyor line (2) is provided on the shot blasting chamber (1), a hanging chain conveyor line passage cavity (5) is installed on the shot blasting chamber (1), the track and chain of the hanging chain conveyor line (2) pass through the hanging chain conveyor line passage cavity (5), an upper shot blasting wheel (3) and a lower shot blasting wheel (4) are respectively installed on the upper and lower inclined surfaces on both sides of the shot blasting chamber (1), a feed port (13) and a discharge port (14) are respectively opened at the front and rear ends of the shot blasting chamber (1), and the feed port (13) and the discharge port (14) are both provided with Two dust shields (12) are arranged opposite to each other, and hinges (7) are installed on the dust shields (12). The dust shields (12) are hinged to the shot blasting chamber (1) through the hinges (7). A tension spring (6) is arranged on the outer side of the dust shield (12) installed on the feeding port (13), and the two ends of the tension spring (6) are fixedly connected to the dust shield (12) and the shot blasting chamber (1) respectively. A tension spring (6) is arranged on the inner side of the dust shield (12) installed on the discharging port (14), and the two ends of the tension spring (6) are fixedly connected to the dust shield (12) and the shot blasting chamber (1) respectively.

2. The shot blasting machine for valve castings according to claim 1, characterized in that: The shot blasting port of the upper shot blasting wheel (3) is tilted downward at 45°, and the shot blasting port of the lower shot blasting wheel (4) is tilted upward at 45°.

3. The shot blasting machine for valve castings according to claim 1, characterized in that: The top of the shot blasting chamber (1) is provided with a slot for facilitating the passage of the hanger of the suspension chain conveyor line (2), and dust-blocking brushes (11) are symmetrically installed on both sides of the slot.

4. The shot blasting machine for valve castings according to claim 1, characterized in that: A material guide hopper (8) connected to the shot blasting chamber (1) is installed on the base (9), and a material receiving trolley (10) is provided below the material guide hopper (8).

5. The shot blasting machine for valve castings according to claim 1, characterized in that: The hanger of the suspension chain conveyor line (2) is hung on the flange mounting hole of the valve casting.

6. The shot blasting machine for valve castings according to claim 1, characterized in that: The cross section of the shot blasting chamber (1) is a regular octagon.

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