A sandblasting device for metal casting production

Abstract

This utility model provides a sandblasting device for metal casting production, relating to the field of sandblasting technology, including a sandblasting box; a sand-leaking box is bolted to the lower side of the sandblasting box; a control panel is installed at the center of the front side of the sandblasting box; a cover plate is hinged to the top of the sandblasting box; an observation window is glued into the through groove of the cover plate; a bracket is welded to the inner side of the sandblasting box; a turntable is rotatably connected to the inner side of the bracket; a support frame slides on the upper side of the turntable; a horizontal rotation and face-changing motor is installed on the rear side of the sandblasting box; a transmission rod is installed on the motor shaft of the horizontal rotation and face-changing motor; and a bevel gear is installed on the transmission rod. Through the arrangement of the horizontal rotation and face-changing motor, bevel gear, turntable, and transmission rod, automatic horizontal rotation and face-changing of metal castings within the sandblasting box is achieved, solving the problem in traditional casting sandblasting where the large size of the metal castings makes it difficult for operators to move the castings within the sandblasting box for horizontal rotation and face-changing sandblasting operations.

Description

Technical Field

[0001] This utility model belongs to the field of sandblasting technology, and more specifically, it relates to a sandblasting device for the production of metal castings. Background Technology

[0002] Castings are metal parts formed by injecting molten metal into a mold and allowing it to cool and solidify. Due to their flexible shape design capabilities and wide adaptability, they occupy an important position in industrial production. Currently, in the production and processing of metal castings, the surface structure of the solidified castings is relatively rough. To improve the surface roughness, workers typically wear protective gloves and hold the gun head of a sandblasting machine in a sandblasting box to perform sandblasting operations. However, in the actual sandblasting process, because the metal castings are placed directly on the sand-filtering screen in the sandblasting box, it is difficult for sandblasting operators to move the castings horizontally and rotate them to adjust the sandblasting when changing the sandblasting surface for larger castings. This makes it difficult for sandblasting operators outside the sandblasting box to observe the overall sandblasting process of the metal casting surface. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a sandblasting device for metal casting production, which solves the problem in traditional casting sandblasting where the large size of metal castings makes it difficult for operators to move the castings in the sandblasting box for horizontal rotation and surface sandblasting operations.

[0004] This utility model provides a sandblasting device for metal casting production, including a base plate; a control unit is mounted on the upper side of the base plate, a sand-leaking box is welded to the front side of the base plate, a sandblasting machine is mounted on the rear side of the sand-leaking box, a sand conveying pipe is mounted on the bottom sandblasting valve of the sandblasting machine, and a sandblasting gun is mounted on the other end of the sand conveying pipe; it also includes a sandblasting box and a pressure rod; the lower side of the sandblasting box is bolted to the sand-leaking box, the front side of the sand-leaking box has a through groove, a sand storage box is inserted into the through groove of the sand-leaking box, and the front side of the sand storage box... The sandblasting box is equipped with a welded tie rod. A control panel is installed at the center of the front side of the sandblasting box. A cover plate is hinged to the top of the sandblasting box. A through groove is provided on the front side of the cover plate, and an observation window is glued into the through groove of the cover plate. A bracket is welded to the inner side of the sandblasting box. A turntable is rotatably connected to the inner side of the bracket. A support frame slides on the upper side of the turntable. A horizontal rotary face-changing motor is installed on the rear side of the sandblasting box. A transmission rod is installed on the motor shaft of the horizontal rotary face-changing motor, and a bevel gear is installed on the transmission rod. A knob is welded to the end of the pressure rod.

[0005] In at least some embodiments, the turntable is a cylindrical structure that runs vertically through the top and bottom. A sand-leaking mesh plate is welded to the inner side of the cylindrical structure near the top opening. A ring plate structure is provided on the outer side of the turntable near the top opening. Four sets of arc-shaped through grooves are provided on the upper side of the ring plate structure. The arc-shaped through grooves are arranged in a circular array around the vertical central axis of the turntable. A helical tooth structure is provided around the lower side of the ring plate structure. A bevel gear is meshed with the helical tooth structure of the ring plate of the turntable.

[0006] In at least some embodiments, the support frame is an L-shaped folded plate structure. The top of the L-shaped folded plate structure of the support frame is provided with a long through groove that runs from left to right. A sliding sleeve is inserted into the long through groove of the support frame. A clamping sleeve is engaged with the outer side of the sliding sleeve. The lower side of the L-shaped folded plate structure of the support frame is provided with an arc-shaped protrusion plate. The arc-shaped protrusion plate of the support frame is inserted into the arc-shaped through groove of the turntable. A threaded through hole is provided at the center of the lower side of the arc-shaped protrusion plate of the support frame. A clamping bolt is screwed into the threaded through hole of the arc-shaped protrusion plate of the support frame.

[0007] In at least some embodiments, the end of the pressure rod is a hemispherical structure, and the outer surface of the pressure rod is provided with a threaded structure.

[0008] In at least some embodiments, the sliding sleeve is a cylindrical structure, the outer side of the cylindrical structure of the sliding sleeve is provided with a ring plate structure, the outer side of the sliding sleeve is provided with a threaded structure, the inner side of the clamping sleeve is provided with a threaded structure, and the outer side of the pressure rod is threadedly connected to the location where the inner side of the sliding sleeve is provided with a threaded structure.

[0009] In at least some embodiments, the inner surface of the clamping sleeve is provided with a threaded structure, and the threaded structure on the outer surface of the sliding sleeve is engaged with the threaded structure on the inner surface of the clamping sleeve.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, a horizontal rotating face-changing motor drives a bevel gear through a transmission rod to operate a gear meshing and reversing transmission mechanism formed by the helical tooth structure on the lower side of the turntable ring plate structure. This causes the bevel gear to drive the turntable to rotate on the inner side of the support, allowing the castings clamped on the upper side of the turntable to rotate synchronously and automatically. This realizes the automatic horizontal rotation face-changing of metal castings in the sandblasting box, eliminating the traditional manual lifting face-changing method. The face-changing operation is simple and convenient, greatly improving the face-changing and sandblasting efficiency of metal castings.

[0011] 2. In this utility model, on the one hand, the nested sliding structure of the sliding sleeve in the long through groove of the support frame and the nested sliding structure of the support frame in the arc through groove of the turntable allow the pressure rod to be flexibly adjusted according to the extrusion and positioning contact position of the casting with different structures. On the other hand, the operation of the thread meshing transmission mechanism formed by the inner side thread of the sliding sleeve and the outer side thread structure of the pressure rod allows multiple sets of pressure rods to extrude and position the metal casting placed on the upper side of the sand-leaking screen plate from multiple directions along the arc through groove of the turntable, avoiding the sandblasting airflow and sand impact on the casting causing the casting to shift position on the upper side of the sand-leaking screen plate, and ensuring that the casting is stably placed to receive the sand impact. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a front view structural diagram of this utility model.

[0014] Figure 3 This is a schematic diagram of the left-side sectional structure of this utility model.

[0015] Figure 4 This is the utility model Figure 3 Enlarged structural diagram of part A in the middle.

[0016] Figure 5 This is the utility model Figure 3 Enlarged structural diagram of part B in the middle.

[0017] Figure 6 This is a schematic diagram of the rear side sectional structure of this utility model.

[0018] Figure 7 This is the utility model Figure 6 Enlarged structural diagram of part C in the middle.

[0019] Reference numerals: 1. Base plate; 2. Control unit; 3. Sand leakage box; 4. Sand storage box; 5. Tie rod; 6. Sandblasting machine; 7. Mask plate; 8. Observation window; 9. Sandblasting box; 10. Control panel; 11. Bracket; 12. Turntable; 13. Knob; 14. Pressure rod; 15. Clamping sleeve; 16. Support frame; 17. Sliding sleeve; 18. Sand leakage screen; 19. Clamping bolt; 20. Horizontal rotating face-changing motor; 21. Bevel gear; 22. Transmission rod; 23. Sand conveying pipe; 24. Sandblasting gun. Detailed Implementation

[0020] 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.

[0021] like Figures 1-7As shown, this utility model provides a sandblasting device for metal casting production, including a base plate 1; a control unit 2 is installed on the upper side of the base plate 1, a sand-leaking box 3 is welded to the front side of the base plate 1, a sandblasting machine 6 is installed on the rear side of the sand-leaking box 3, a sand conveying pipe 23 is installed on the bottom sandblasting valve of the sandblasting machine 6, and a sandblasting gun 24 is installed at the other end of the sand conveying pipe 23; it also includes a sandblasting box 9 and a pressure rod 14; the sand-leaking box 3 is bolted to the lower side of the sandblasting box 9, a through groove is provided on the front side of the sand-leaking box 3, a sand storage box 4 is inserted into the through groove of the sand-leaking box 3, and a pull rod 5 is welded to the front side of the sand storage box 4. A control panel 10 is installed at the center of the front side of the sandblasting box 9. A cover plate 7 is hinged to the top of the sandblasting box 9. A through groove is provided on the front side of the cover plate 7. An observation window 8 is glued in the through groove of the cover plate 7. A bracket 11 is welded to the inner side of the sandblasting box 9. A turntable 12 is rotatably connected to the inner side of the bracket 11. A support frame 16 slides on the upper side of the turntable 12. A horizontal rotating face-changing motor 20 is installed on the rear side of the sandblasting box 9. A transmission rod 22 is installed on the motor shaft of the horizontal rotating face-changing motor 20. A bevel gear 21 is installed on the transmission rod 22. A knob 13 is welded to the end of the pressure rod 14.

[0022] In this embodiment, the turntable 12 is a cylindrical structure that runs vertically through the top and bottom. A sand-leaking mesh plate 18 is welded to the inner side of the cylindrical structure of the turntable 12 near the top opening. A ring plate structure is provided on the outer side of the turntable 12 near the top opening. Four sets of arc-shaped through slots are provided on the upper side of the ring plate structure of the turntable 12. The arc-shaped through slots are arranged in a circular array around the vertical central axis of the turntable 12. A helical tooth structure is provided around the lower side of the ring plate structure of the turntable 12. A bevel gear 21 is meshed with the helical tooth structure of the ring plate of the turntable 12. During the process of the horizontal rotation face-changing motor 20 driving the bevel gear 21 to rotate through the transmission rod 22 installed on the motor shaft, the bevel gear 21 drives the turntable 12 to rotate horizontally on the inner side of the support 11, so that the casting placed on the upper side of the sand-leaking mesh plate 18 at the top opening of the turntable 12 rotates horizontally. This realizes the automatic rotation and face-changing of the casting without manual handling, and the face-changing sandblasting operation is easy and convenient.

[0023] In this embodiment, the support frame 16 is an L-shaped folded plate structure. A long, through-slot is provided at the top of the L-shaped folded plate structure, and a sliding sleeve 17 is inserted into the through-slot. A clamping sleeve 15 is engaged with the outer side of the sliding sleeve 17. An arc-shaped protrusion is provided on the lower side of the L-shaped folded plate structure of the support frame 16. The arc-shaped protrusion of the support frame 16 is inserted into the arc-shaped through-slot of the turntable 12. The arc-shaped protrusion of the support frame 16 slides horizontally along the arc-shaped through-slot of the turntable 12. (The last sentence appears to be incomplete and possibly refers to a different embodiment.) The appearance structure of the component allows for flexible adjustment of the horizontal pushing contact position of the pressure rod 14. The lower side center of the arc-shaped convex plate of the support frame 16 is provided with a threaded through hole. The clamping bolt 19 is screwed into the threaded through hole of the arc-shaped convex plate of the support frame 16. During the upward tightening process of the clamping bolt 19 in the threaded through hole of the arc-shaped convex plate of the support frame 16, the clamping bolt 19 cooperates with the support frame 16 to squeeze the ring plate structure of the turntable 12, thereby completing the fixing of the support frame 16 at any position of the arc-shaped through groove of the turntable 12.

[0024] In this embodiment, the end of the pressure rod 14 is a hemispherical structure. The hemispherical structure of the pressure rod 14 contacts the casting placed on the upper side of the sand-filtering mesh plate 18, reducing the contact area between the pressure rod 14 and the outer surface structure of the casting. While ensuring that multiple sets of pressure rods 14 horizontally push and position the casting, the sandblasting contact surface of the casting is increased. The outer side of the pressure rod 14 is provided with a threaded structure.

[0025] In this embodiment, the sliding sleeve 17 is a cylindrical structure. The outer side of the cylindrical structure of the sliding sleeve 17 is provided with a ring plate structure and a threaded structure. The inner side of the clamping sleeve 15 is provided with a threaded structure. The outer side of the pressure rod 14 is threaded and connected to the inner side of the sliding sleeve 17. During the rotation of the pressure rod 14 driven by the knob 13, the pressure rod 14 moves in and out of the cylindrical body of the sliding sleeve 17 along the threaded structure on the inner side of the sliding sleeve 17. The pressure rod 14 is adjusted to adapt to the structure of different castings until the hemispherical structure of multiple pressure rods 14 contacts the outer surface of the casting for fixed clamping. This avoids the sandblasting airflow and sand impacting the casting, which would cause the casting to shift on the upper side of the sand-leaking screen plate 18, and ensures that the casting is stably placed on the turntable 12.

[0026] In this embodiment, the inner side of the clamping sleeve 15 is provided with a threaded structure, and the outer side of the sliding sleeve 17 is engaged with the threaded structure on the inner side of the clamping sleeve 15. During the rotation and twisting of the clamping sleeve 15 at the threaded structure on the outer side of the sliding sleeve 17, the clamping sleeve 15, together with the ring plate structure of the sliding sleeve 17, performs opposing compression clamping on the outer part of the long through groove of the support frame 16, so that the pressure rod 14 engaged with the inner side of the sliding sleeve 17 can be flexibly adjusted according to the casting structure to push the contact height of the pressure rod 14.

[0027] The specific usage and function of this embodiment are as follows: In this invention, when performing sandblasting on a metal casting, the casting is placed on the upper side of the sand-filtering mesh plate 18 welded to the inner side of the rotary table 12 cylinder structure. Then, according to the overall height structure of the casting, the sliding sleeve 17 is pulled along the long slot of the support frame 16 to a suitable pressing and clamping height position. The clamping sleeve 15 is manually rotated. Since the inner thread of the clamping sleeve 15 is engaged with the outer thread structure of the sliding sleeve 17, the clamping sleeve 15, in conjunction with the outer ring plate structure of the sliding sleeve 17, engages with the long slot of the support frame 16. The outer part of the slot is clamped from opposite directions to fix the sliding sleeve 17 at a suitable height. Then, according to the outer surface structure of the casting, the support frame 16 is pushed to slide horizontally along the ring-shaped through slot of the turntable 12 until the support frame 16 drives the pressure rod 14, which is engaged with the inner side of the sliding sleeve 17, to rotate and move to a suitable position. Then, the clamping bolt 19 is manually rotated, and the clamping bolt 19 rotates upward along the threaded through hole of the arc-shaped protrusion of the support frame 16. The clamping bolt 19 cooperates with the support frame 16 to clamp the ring-shaped structure of the turntable 12. The upper and lower pressure is applied to fix the support frame 16 in the arc-shaped through groove structure of the turntable 12. Finally, the knob 13 is manually turned, which drives the pressure rod 14 to rotate. Since the outer side of the pressure rod 14 is threadedly engaged with the inner side of the sliding sleeve 17, the pressure rod 14 rotates and extends along the thread structure of the sliding sleeve 17 until the hemispherical structure at the end of the pressure rod 14 presses against the outer surface of the casting, completing the positioning of the casting by multiple sets of pressure rods 14. Then, the sandblasting operator inputs control through the control panel 10. Control commands are transmitted from control panel 10 to control unit 2 via wires. After analyzing the control commands, control unit 2 controls the horizontal rotating face-changing motor 20 and sandblasting machine 6 to start via wires. The horizontal rotating face-changing motor 20 drives the bevel gear 21 welded to the end of transmission rod 22 to rotate. Since the bevel gear 21 is meshed with the helical tooth structure of the ring plate of turntable 12, the bevel gear 21 drives the casting placed on the upper side of turntable 12 to rotate horizontally. The sandblasting operator holds the sandblasting gun 24 to perform face-changing sandblasting operation on the surface of the casting.

[0028] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies. Any method that achieves the desired beneficial effect can be implemented. The control unit 2, sandblasting machine 6, control panel 10, horizontal rotary face-changing motor 20, sand conveying pipe 23, and sandblasting gun 24 mentioned above are all common market components. Upon purchase and use, simply connect them according to the instruction manual purchased with the machine; therefore, further details are omitted here.

[0029] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A sandblasting device for metal casting production, comprising a base plate (1); a control unit (2) is mounted on the upper side of the base plate (1), a sand-leaking box (3) is welded to the front side of the base plate (1), a sandblasting machine (6) is mounted on the rear side of the sand-leaking box (3), a sand-feeding pipe (23) is mounted on the bottom sandblasting valve of the sandblasting machine (6), and a sandblasting gun (24) is mounted at the other end of the sand-feeding pipe (23); characterized in that: It also includes a sandblasting box (9) and a pressure rod (14); the lower side of the sandblasting box (9) is connected to a sand leakage box (3) by bolts, the front side of the sand leakage box (3) is provided with a through groove, a sand storage box (4) is inserted in the through groove of the sand leakage box (3), a pull rod (5) is welded to the front side of the sand storage box (4), a control panel (10) is installed at the center of the front side of the sandblasting box (9), a cover plate (7) is hinged to the top of the sandblasting box (9), the front side of the cover plate (7) is provided with a through groove, and a glued rod (5) is bonded in the through groove of the cover plate (7). There is an observation window (8), a bracket (11) is welded to the inner side of the sandblasting box (9), a turntable (12) is rotatably connected to the inner side of the bracket (11), a support frame (16) slides on the upper side of the turntable (12), a horizontal rotating face-changing motor (20) is installed on the rear side of the sandblasting box (9), a transmission rod (22) is installed on the motor shaft of the horizontal rotating face-changing motor (20), and a bevel gear (21) is installed on the transmission rod (22); a knob (13) is welded to the end of the pressure rod (14).

2. The sandblasting device for metal casting production as described in claim 1, characterized in that: The turntable (12) is a cylindrical structure that runs vertically through the top and bottom. A sand-leaking mesh plate (18) is welded to the inner side of the cylindrical structure of the turntable (12) near the top opening. A ring plate structure is provided on the outer side of the turntable (12) near the top opening. Four sets of arc-shaped through grooves are provided on the upper side of the ring plate structure of the turntable (12). The arc-shaped through grooves are arranged in a ring array around the vertical central axis of the turntable (12). A helical tooth structure is provided around the lower side of the ring plate structure of the turntable (12). A bevel gear (21) meshes with the helical tooth structure of the ring plate of the turntable (12).

3. The sandblasting device for metal casting production as described in claim 1, characterized in that: The support frame (16) is an L-shaped folded plate structure. The top of the L-shaped folded plate structure of the support frame (16) is provided with a long through groove that runs from left to right. A sliding sleeve (17) is inserted into the long through groove of the support frame (16). A clamping sleeve (15) is engaged with the outer side of the sliding sleeve (17). An arc-shaped protrusion is provided on the lower side of the L-shaped folded plate structure of the support frame (16). The arc-shaped protrusion of the support frame (16) is inserted into the arc-shaped through groove of the turntable (12). A threaded through hole is provided at the center of the lower side of the arc-shaped protrusion of the support frame (16). A clamping bolt (19) is screwed into the threaded through hole of the arc-shaped protrusion of the support frame (16).

4. The sandblasting device for metal casting production as described in claim 1, characterized in that: The end of the pressure rod (14) is a hemispherical structure, and the outer side of the pressure rod (14) is provided with a threaded structure.

5. The sandblasting device for metal casting production as described in claim 3, characterized in that: The sliding sleeve (17) is a cylindrical structure. The outer side of the cylindrical structure of the sliding sleeve (17) is provided with a ring plate structure. The outer side of the sliding sleeve (17) is provided with a threaded structure. The inner side of the clamping sleeve (15) and the sliding sleeve (17) are provided with a threaded structure. The outer side of the pressure rod (14) is engaged with the threaded structure on the inner side of the sliding sleeve (17).

6. The sandblasting device for metal casting production as described in claim 3, characterized in that: The inner side of the clamping sleeve (15) is provided with a threaded structure, and the outer side threaded structure of the sliding sleeve (17) is engaged with the inner side threaded structure of the clamping sleeve (15).

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