A sand blasting box for ferrous metal casting

Abstract

The utility model discloses a sand blasting box for ferrous metal casting, including the box, the box both sides are fixed with the supporting plate, the box bottom is fixed with the supporting leak plate, and the supporting leak plate is the lattice board with sieve hole.

Description

Technical Field

[0001] This utility model relates to the field of casting processing, and in particular to a sandblasting box for ferrous metal casting. Background Technology

[0002] Sandblasting boxes are suitable for the rapid processing of standardized, high-volume castings. For castings with complex shapes that are difficult to clean manually, sandblasting can be more efficient. For precision castings with high surface quality requirements, sandblasting is an essential process. When casting ferrous metal parts, sandblasting boxes remove oxide scale, residual sand, burrs, and slag from the casting surface, solving surface roughness problems caused by high-temperature oxidation or mold residues during the casting process. It also eliminates minor porosity and cracks on the casting surface, improving the smoothness and consistency of the casting. This provides a cleaner surface for subsequent spraying, electroplating, or coating, and improves the adhesion between the coating and the substrate.

[0003] In existing sandblasting boxes, abrasive and impurities tend to mix and accumulate at the bottom of the box after sandblasting. Traditional sorting devices rely on a single filter screen for screening, resulting in incomplete separation of impurities and abrasives. This makes it difficult to achieve the coordinated removal of multiple types of impurities, leading to insufficient cleanliness when the abrasive is recycled, which affects the sandblasting effect. Utility Model Content

[0004] The purpose of this utility model is to provide a sandblasting box for ferrous metal casting, which solves the problems of existing equipment lacking a multi-stage sorting system, incomplete separation of impurities and abrasives, resulting in insufficient cleanliness of abrasives during recycling and affecting the sandblasting effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sandblasting box for ferrous metal casting includes a box body, with support plates fixed on both sides of the box body and a support sieve plate fixed at the bottom of the box body. The support sieve plate is a grid plate with sieve holes. A screening funnel is installed at the bottom of the box body. The screening funnel is a funnel structure with sieve holes. A discharge port A is fixed at the bottom center of the screening funnel. A particulate impurity funnel is fixed at the bottom center of the screening funnel. A particulate impurity collecting cylinder is fixed at the bottom center of the particulate impurity funnel. The particulate impurity collecting cylinder is sleeved outside the discharge port A. A particulate impurity outlet is fixed outside the particulate impurity collecting cylinder. A permanent magnet drum and a cyclone separator are connected in sequence outside the discharge port A.

[0007] A tent-shaped guide plate is fixed at the center of the top of the screening funnel, and there is a gap between the guide plate and the contact position of the screening funnel.

[0008] The top of the screening funnel is connected to the bottom of the box via a corrugated pipe, and the left and right sides of the particulate impurity funnel are connected to the inner sides of the two support plates via vertical support springs. A vibration motor is fixedly installed on the bottom surface of the particulate impurity funnel.

[0009] The bottom of the discharge port A is connected to the roller inlet at the top of the permanent magnet roller via a flexible hose. The permanent magnet roller is fixed to the ground via the flexible hose. The bottom of the permanent magnet roller has a non-magnetic impurity outlet and a discharge port B.

[0010] The discharge port B is connected to a fan via a pipe. The air outlet of the fan is connected to the separator inlet pipe of the cyclone separator. The cyclone separator has a light impurity outlet at the top and an abrasive outlet at the bottom.

[0011] The abrasive outlet is connected to a feed pipe, and the end of the feed pipe is connected to an air jet pipe via a tee. The outer end of the air jet pipe is connected to an air compressor, and a nozzle is installed at the other port of the tee. The nozzle is located inside the housing.

[0012] A glove operating port is installed on the lower front side of the box, and a rubber glove is fixed inside the glove operating port.

[0013] An observation window is provided on the upper front side of the enclosure, and a transparent acrylic panel is installed inside the observation window.

[0014] A door panel is hinged to the left side of the box, and the door panel is fixed to the box by a lock. This facilitates the entry and exit of castings within the box.

[0015] The door panel has a storage opening, and a rotating box is hinged inside the storage opening.

[0016] This utility model has the following beneficial effects:

[0017] The abrasive mixes with impurities removed from the casting surface and falls. First, it passes through a screening funnel to screen small particles of impurities. Then, it passes through a permanent magnet drum to magnetically separate non-magnetic impurities. Finally, it passes through a cyclone separator to air-separate lighter impurities. Through multi-stage sorting of the abrasive, the cleanliness of the abrasive is significantly improved, ensuring a qualified sandblasting effect on the casting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is the front view of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the screening funnel, particulate impurity funnel, and guide plate of this utility model;

[0021] Figure 4 This is a longitudinal sectional view of the screening funnel, particulate impurity funnel, and guide plate of this utility model;

[0022] Figure 5 This is a schematic diagram showing the position of the vibration motor of this utility model;

[0023] Figure 6 This is a side view of the connection between the permanent magnet drum and the cyclone separator of this utility model;

[0024] Icons: 1. Box body; 2. Support plate; 3. Supporting sieve plate; 4. Screening funnel; 5. Discharge port A; 6. Particulate impurity funnel; 7. Particulate impurity collection cylinder; 8. Particulate impurity outlet; 9. Guide plate; 10. Corrugated pipe; 11. Supporting spring; 12. Vibration motor; 13. Permanent magnet drum; 14. Drum inlet; 15. Hose; 16. Non-magnetic impurity outlet; 17. Discharge port B; 18. Fan; 19. Cyclone separator; 20. Separator inlet; 21. Light weight impurity outlet; 22. Abrasive outlet; 23. Conveyor pipe; 24. Air jet pipe; 25. Nozzle; 26. Glove operating port; 27. Observation window; 28. Door panel; 29. ​​Storage port; 30. Rotating box. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figure 1-6As shown, in this embodiment, a sandblasting box for ferrous metal casting includes a box body 1, which is used to sandblast and clean the surface of castings. Support plates 2 are fixed to both sides of the box body 1 to support it at a certain height. A support sieve plate 3 is fixed to the bottom of the box body 1. The support sieve plate 3 is a grid plate with sieve holes to prevent abrasive and impurities from accumulating inside the box body 1. A screening funnel 4 is installed at the bottom of the box body 1. The screening funnel 4 is a funnel structure with sieve holes, and the diameter of the sieve holes is smaller than the diameter of the abrasive to separate fine particles from the abrasive. A discharge port A5 is fixed at the bottom center of the screening funnel 4, through which the abrasive from the screening port flows... The material is discharged from the outlet A5. A particulate impurity funnel 6 is fixed at the bottom of the screening funnel 4 to guide the fine particulate impurities after screening. A particulate impurity collection cylinder 7 is fixed at the bottom center of the particulate impurity funnel 6. The particulate impurity collection cylinder 7 is sleeved on the outside of the outlet A5 to collect fine particulate impurities. A particulate impurity outlet 8 is fixed outside the particulate impurity collection cylinder 7 to discharge the collected fine particulate impurities. A permanent magnet roller 13 and a cyclone separator 19 are connected in sequence to the outside of the outlet A5. After screening the abrasive, it is then subjected to magnetic separation and air separation in sequence. Through multi-stage separation of the abrasive, the cleanliness of the abrasive and the sandblasting effect are further enhanced.

[0028] A tent-shaped guide plate 9 is fixed at the top center of the screening funnel 4, and there is a gap between the guide plate 9 and the contact position of the screening funnel 4. This is used to guide the abrasive mixed with impurities from the guide plate 9 to slide down to the outer edge of the screening funnel 4, thereby increasing the screening effect of the screening funnel 4.

[0029] The top of the screening funnel 4 is connected to the bottom of the box 1 via a corrugated pipe 10. The left and right sides of the particulate impurity funnel 6 are connected to the inner sides of the two support plates 2 via vertical support springs 11. A vibration motor 12 is fixedly installed on the bottom surface of the particulate impurity funnel 6. The screening funnel 4 and the particulate impurity funnel 6 are welded together. The top is flexibly connected to the box 1 via a corrugated pipe 10, and the left and right sides are flexibly connected to the support plates 2 via support springs 11. The design of the vibration motor 12 and the flexible connection avoids resonance damage, extends the service life of the equipment, and improves the screening efficiency of abrasive mixed with fine particulate impurities.

[0030] The bottom of the discharge port A5 is connected to the drum inlet 14 at the top of the permanent magnet drum 13 via a flexible hose 15. The flexible connection of the hose 15 ensures that the discharge port A5 can communicate normally with the drum inlet 14 when it shakes due to the vibration motor 12. The permanent magnet drum 13 is fixed to the ground. The bottom of the permanent magnet drum 13 has a non-magnetic impurity outlet 16 and a discharge port B17, which are used to separate and remove magnetic abrasives and non-magnetic impurities, thereby improving the cleanliness of the abrasive.

[0031] The discharge port B17 is connected to a blower 18 via a pipe. The air outlet of the blower 18 is connected to the separator inlet 20 of the cyclone separator 19 via a pipe. The cyclone separator 19 has a light impurity outlet 21 at the top and an abrasive outlet 22 at the bottom. The light impurity outlet 21 is connected to an external vacuum cleaner for collection, which is used to screen the lighter impurities in the abrasive and further improve the cleanliness of the abrasive.

[0032] The abrasive outlet 22 is connected to a feed pipe 23, and the end of the feed pipe 23 is connected to an air jet pipe 24 via a tee. The outer end of the air jet pipe 24 is connected to an air compressor, and a nozzle 25 is installed at the other port of the tee. The nozzle 25 is located inside the housing 1. By recycling the abrasive through multi-stage sorting, costs are saved.

[0033] A glove operating port 26 is installed on the lower front side of the box 1. A rubber glove is fixed inside the glove operating port 26 for the person to hold the casting and also to isolate the inside and outside of the box 1.

[0034] An observation window 27 is provided on the upper front side of the housing 1. A transparent acrylic plate is installed inside the observation window 27. A transparent protective film is attached to the inner side of the acrylic plate to facilitate observation of the sandblasting condition of the casting and to increase the service life of the acrylic plate.

[0035] A door panel 28 is hinged to the left side of the housing 1, and the door panel 28 is fixed to the housing 1 by a lock. This facilitates the entry and exit of castings in the housing 1.

[0036] The door panel 28 has a storage opening 29, and a rotating box 30 is hinged inside the storage opening 29 to allow smaller castings to quickly enter and exit the box 1, reducing the number of times the door is opened and speeding up the sandblasting process of the castings. When the rotating box 30 rotates to its limit position in both directions, the contact surface between the rotating box 30 and the storage opening 29 is sealed to prevent gas mixed with impurities from escaping.

[0037] The working principle of this utility model is as follows: An air compressor drives the jet pipe 24 to spray abrasive at high speed through the conveying pipe 23 onto the surface of the casting inside the housing 1 under negative pressure. The impact force removes impurities such as oxide scale and burrs. The mixed abrasive after sandblasting is dispersed to the outer edge of the screening funnel 4 by the guide plate 9 to expand the screening area. The vibration motor 12 drives the screening funnel 4 and the particulate impurity funnel 6 to vibrate as a whole. With the flexible connection between the corrugated pipe 10 and the support spring 11, the fine particulate impurities are accelerated to fall through the screen holes into the particulate impurity collection cylinder 7 and finally discharged from the particulate impurity outlet 8. The clean abrasive after screening is then discharged. The abrasive enters the permanent magnet drum 13 through the discharge port A5. The permanent magnet drum 13 uses magnetic force to attract the ferromagnetic abrasive, causing it to be discharged from the discharge port B17. Non-magnetic impurities such as sand and dust are separated from the non-magnetic impurity outlet 16. The abrasive from the discharge port B17 is blown into the cyclone separator 19 by the blower 18. The centrifugal force is used to separate light impurities such as dust and fibers. The light impurities are discharged from the top light weight impurity outlet 21, and the heavy clean abrasive is recovered from the bottom abrasive outlet 22. The clean abrasive is then sprayed again through the nozzle 25 via the conveying pipe 23 to form a "cleaning → sorting → reuse" cycle, reducing abrasive loss.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sandblasting box for ferrous metal casting, comprising a box body (1), support plates (2) fixed on both sides of the box body (1), and a support sieve plate (3) fixed at the bottom of the box body (1), wherein the support sieve plate (3) is a grid plate with sieve holes, characterized in that, The bottom of the box (1) is equipped with a screening funnel (4), which is a funnel structure with screen holes. The bottom center of the screening funnel (4) is fixed with a discharge port A (5). The bottom of the screening funnel (4) is fixed with a particulate impurity funnel (6). The bottom center of the particulate impurity funnel (6) is fixed with a particulate impurity collection cylinder (7). The particulate impurity collection cylinder (7) is sleeved on the outside of the discharge port A (5). The particulate impurity collection cylinder (7) is fixed with a particulate impurity outlet (8). The discharge port A (5) is connected in sequence with a permanent magnet roller (13) and a cyclone separator (19).

2. The sandblasting box for ferrous metal casting according to claim 1, characterized in that, The screening funnel (4) has a tent-shaped guide plate (9) fixed at the top center, and there is a gap between the guide plate (9) and the contact position of the screening funnel (4).

3. A sandblasting box for ferrous metal casting according to claim 2, characterized in that, The top of the screening funnel (4) is connected to the bottom of the box (1) by a corrugated pipe (10), and the left and right sides of the particle impurity funnel (6) are connected to the inner side of the two support plates (2) by vertical support springs (11). A vibration motor (12) is fixedly installed on the bottom surface of the particle impurity funnel (6).

4. A sandblasting box for ferrous metal casting according to claim 3, characterized in that, The bottom of the discharge port A (5) is connected to the roller inlet (14) at the top of the permanent magnet roller (13) via a hose (15). Through the flexible connection of the hose (15), the permanent magnet roller (13) is fixed to the ground. The bottom of the permanent magnet roller (13) has a non-magnetic impurity outlet (16) and a discharge port B (17).

5. A sandblasting box for ferrous metal casting according to claim 4, characterized in that, The discharge port B (17) is connected to a fan (18) via a pipe. The air outlet of the fan (18) is connected to the separator inlet (20) of the cyclone separator (19) via a pipe. The cyclone separator (19) has a light weight impurity outlet (21) at the top and an abrasive outlet (22) at the bottom.

6. A sandblasting box for ferrous metal casting according to claim 5, characterized in that, The abrasive outlet (22) is connected to a feed pipe (23), and the end of the feed pipe (23) is connected to a jet pipe (24) via a tee. The outer end of the jet pipe (24) is connected to an air compressor, and a nozzle (25) is installed at the other end of the tee. The nozzle (25) is located inside the housing (1).

7. A sandblasting box for ferrous metal casting according to claim 1, characterized in that, A glove operating port (26) is installed on the lower front side of the box (1), and a rubber glove is fixed inside the glove operating port (26).

8. A sandblasting box for ferrous metal casting according to claim 7, characterized in that, An observation window (27) is provided on the upper front side of the box (1), and a transparent acrylic plate is installed inside the observation window (27).

9. A sandblasting box for ferrous metal casting according to claim 1, characterized in that, The box (1) has a door panel (28) hinged to the left side. The door panel (28) is fixed to the box (1) by a lock so that the casting can enter and exit the box (1).

10. A sandblasting box for ferrous metal casting according to claim 9, characterized in that, The door panel (28) has a storage opening (29), and a rotating box (30) is hinged inside the storage opening (29).

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