Efficient compacting and forming device for casting sand mold
The material on the top of the sand box is automatically cleaned by a servo motor-driven threaded rod and rotating auger. Combined with the lower pressure cover and lower pressure arm, the material is compacted and formed, which solves the problems of manual scraping and demolding difficulties, and improves processing efficiency and forming quality.
Patent Information
- Application Number
- CN202520453532.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-16
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-16
AI Technical Summary
The existing compaction molding equipment requires manual scraping of the material on the top of the sand box after feeding, which affects processing efficiency, and the adhesion of material scraps after molding makes demolding difficult.
A servo motor drives a threaded rod to move the sand box. Combined with a rotating auger and a cleaning shovel, the material on top of the sand box is automatically cleaned. The material is compacted and shaped using a lower pressure cover and a lower pressure arm. Stable pressing is ensured by an electric push rod and a sliding groove structure.
It achieves automated material leveling and scrap cleaning, improves processing efficiency, simplifies the demolding process, and enhances the automation level and molding quality of the molding device.
Smart Images

Figure CN223848044U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of casting molding technology, specifically a high-efficiency compaction molding device for casting sand molds. Background Technology
[0002] Mechanical molding methods in casting are categorized based on different sand compaction principles, including compaction molding, vibration molding, micro-vibration molding, air-jet molding, sand-shooting molding, and sand-throwing molding. Currently, the most advanced compaction molding method utilizes multi-contact high-pressure micro-vibration compaction molding. Existing compaction molding devices require initial material loading into the sand box. Once loading is complete, compaction molding can begin. However, this process often results in a large accumulation of material on the top of the sand box, necessitating manual leveling to prevent overflow during compaction. Manual leveling also impacts processing efficiency. Furthermore, after molding, scrap material adheres to the top of the sand box, making demolding difficult. Utility Model Content
[0003] To overcome the above-mentioned defects, this utility model provides a high-efficiency compaction molding device for casting sand molds, which solves the problem that after the existing sand box is filled, a large amount of material will accumulate on the top of the sand box, which requires manual scraping to prevent the material from overflowing during compaction molding. Manual scraping affects the processing efficiency. At the same time, after the material is formed, scraps of the formed material adhere to the top of the sand box, making demolding difficult.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency compaction molding device for casting sand molds, comprising a base, a servo motor fixedly connected inside the base, a movable groove formed at the bottom of the base, a threaded rod fixedly connected to the output end of the servo motor, both ends of the threaded rod rotatably connected to the movable groove, a sand box provided at the external thread of the threaded rod, limit grooves formed on both sides of the base, a sliding rod fixedly connected inside the limit groove, both sides of the sand box slidably connected to the outer arc surface of the sliding rod, a cleaning strip fixedly connected to the top of the base, a cleaning groove formed inside the cleaning strip, a rotary motor fixedly connected inside one side of the cleaning strip, a rotary auger fixedly connected to the output end of the rotary motor, both ends of the rotary auger rotatably connected to the cleaning groove, cleaning shovels fixedly connected to both sides of the cleaning strip corresponding to the cleaning groove, and a discharge cylinder fixedly connected to the end of the cleaning strip away from the rotary motor.
[0005] As a further embodiment of this utility model: two electric lifting blocks are fixedly connected to the top of the base, and a top block is fixedly connected to the top of the two electric lifting blocks.
[0006] As a further embodiment of this utility model: an electric push rod is fixedly connected to the top of the top block, and a lower pressure cover is fixedly connected to the bottom of the electric push rod through the top block.
[0007] As a further embodiment of this utility model: the bottom of the top block is fixedly connected with four first rotating seats, and two first rotating seats form a group.
[0008] As a further embodiment of this utility model: a lower pressure arm is rotatably connected to the bottom of the first rotating seat, and a second rotating seat is rotatably connected to the bottom of the lower pressure arm.
[0009] As a further embodiment of this utility model: the top of the lower pressure cover has two sliding grooves, and each set of second rotating seats is slidably connected in the sliding groove.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This high-efficiency compaction molding device for casting sand molds, equipped with a servo motor, threaded rod, cleaning shovel, and rotary motor, first places the material into the sand box. After feeding, the output of the servo motor drives the threaded rod to rotate, which in turn moves the sand box. Simultaneously, both sides of the sand box move on sliding rods, ensuring the stability of the sand box movement. When the top of the sand box passes the cleaning bar, the material on top is scooped up by the cleaning shovel, and excess material enters the cleaning trough. The rotary motor then drives the rotating auger to rotate, which transfers the material inside the cleaning trough to the discharge cylinder. After the material is molded, the threaded rod moves the sand box again, and the cleaning shovel cleans the scraps from the molded material, discharging the scraps through the discharge cylinder. This process removes scraps from the molded material, facilitating demolding.
[0012] 2. This high-efficiency compaction molding device for casting sand molds, equipped with a lower pressure cover, lower pressure arms, sliding grooves, and electric push rods, allows for compaction molding when necessary. First, the height of the electric lifting block is adjusted, which in turn moves the top block to the appropriate height. Then, the lower pressure cover is pressed down. The electric push rod is activated, causing the lower pressure cover to press down. Simultaneously, the lower pressure arms on both sides slide within the sliding grooves, supporting the lower pressure cover. The lower pressure cover and sand box work together to compact the material, resulting in more efficient molding of the material within the sand box. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the base and servo motor structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the cleaning strip and cleaning shovel structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the electric lifting block and top block structure of this utility model;
[0017] In the diagram: 1. Base; 2. Servo motor; 3. Moving groove; 4. Threaded rod; 5. Limiting groove; 6. Sliding rod; 7. Sand box; 8. Cleaning bar; 9. Rotary motor; 10. Cleaning groove; 11. Rotary auger; 12. Cleaning shovel; 13. Discharge cylinder; 14. Electric lifting block; 15. Top block; 16. Electric push rod; 17. First rotating seat; 18. Lower pressure arm; 19. Second rotating seat; 20. Sliding groove; 21. Lower pressure cover. Detailed Implementation
[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a high-efficiency compaction molding device for casting sand molds, including a base 1, a servo motor 2 fixedly connected inside the base 1, a moving groove 3 opened at the bottom of the base 1, two electric lifting blocks 14 fixedly connected to the top of the base 1, and a top block 15 fixedly connected to the top of the two electric lifting blocks 14. Through the setting of the electric lifting blocks 14, the height can be adjusted by the electric lifting blocks 14, thereby driving the top block 15 and the electric push rod 16 to be adjusted to a suitable height, so that the electric push rod 16 can work at a suitable height.
[0020] The output end of the servo motor 2 is fixedly connected to a threaded rod 4. The two ends of the threaded rod 4 are rotatably connected to the moving groove 3. A sand box 7 is provided at the external thread of the threaded rod 4. Limiting grooves 5 are opened on both sides of the base 1. A sliding rod 6 is fixedly connected in the limiting groove 5. With the setting of the limiting groove 5 and the sliding rod 6, when the sand box 7 moves, the two sides of the sand box 7 will slide on the sliding rod 6 in the limiting groove 5. The sliding rod 6 limits the sand box 7 to prevent the sand box 7 from deviating when it moves.
[0021] The two sides of the sand box 7 are slidably connected to the outer arc surface of the slide rod 6. The top of the base 1 is fixedly connected to the cleaning strip 8. The cleaning strip 8 has a cleaning groove 10. A rotary motor 9 is fixedly connected to one side of the cleaning strip 8. A rotary auger 11 is fixedly connected to the output end of the rotary motor 9. By setting the rotary auger 11, the rotary motor 9 is started, and the rotary motor 9 drives the rotary auger 11 to rotate. At this time, the material in the cleaning groove 10 can be conveyed by the rotary auger 11.
[0022] The two ends of the rotating auger 11 are rotatably connected to the cleaning trough 10. The cleaning bar 8 is fixedly connected to the two sides of the cleaning trough 10 with cleaning shovels 12. The end of the cleaning bar 8 away from the rotating motor 9 is fixedly connected to the discharge cylinder 13. By setting the cleaning shovels 12, the uneven material on the top of the sand box 7 is leveled by the cleaning shovels 12, and the scraps on the top of the formed material can also be removed.
[0023] An electric push rod 16 is fixedly connected to the top of the top block 15. The bottom of the electric push rod 16 passes through the top block 15 and is fixedly connected to the lower pressure cover 21. Through the setting of the electric push rod 16 and the lower pressure cover 21, the electric push rod 16 is extended and retracted, and the lower pressure cover 21 is pressed down by the electric push rod 16 to squeeze the material in the sand box 7, so that the material can be compacted and formed.
[0024] The bottom of the top block 15 is fixedly connected to four first rotating seats 17, with two first rotating seats 17 forming a group. The bottom of the first rotating seat 17 is rotatably connected to a lower pressing arm 18, and the bottom of the lower pressing arm 18 is rotatably connected to a second rotating seat 19. With the setting of the lower pressing arm 18, when the lower pressing cover 21 is pressed down by the electric push rod 16, the lower pressing arm 18 will rotate between the first rotating seat 17 and the second rotating seat 19. The lower pressing cover 21 is connected to the top plate by the four lower pressing arms 18, so that the lower pressing cover 21 is more stable when it is pressed down by the support of the lower pressing arms 18.
[0025] The top of the lower cover 21 has two sliding grooves 20. Each set of second rotating seats 19 is slidably connected in the sliding groove 20. When the lower cover 21 is pressed down, the lower cover 21 will drive the second rotating seats 19 to slide in the sliding groove 20 through the lower cover arm 18, so as to prevent the second rotating seats 19 from getting stuck on the lower cover 21.
[0026] The working principle of this utility model is as follows: First, the sand box 7 is filled with material. After the material is filled, the servo motor 2 is started, which drives the threaded rod 4 to rotate. The threaded rod 4 then drives the sand box 7 to move within the moving groove 3. When the sand box 7 moves, the two sides of the sand box 7 move on the sliding rod 6. When the top of the sand box 7 passes the cleaning strip 8, the material at the top of the sand box 7 is scooped up by the cleaning shovel 12. Thus, the excess material and the material scattered on the top of the four walls of the sand box 7 enter the cleaning groove 10. At the same time, the rotary motor 9 is started, which drives the rotary auger 11 to rotate. The rotary auger 11 then drives the material inside the cleaning groove 10 to rotate until it reaches the discharge cylinder. At point 13, discharge is carried out, and compaction can then be performed. First, adjust the electric lifting block 14 to a suitable height, then start the electric push rod 16. The electric lifting block 14 drives the lower pressure cover 21 to press down. The lower pressure arm 18 rotates between the first rotating seat 17 and the second rotating seat 19. At the same time, the lower pressure arms 18 on both sides drive the second rotating seat 19 to slide in the sliding groove 20. At this time, the material in the sand box 7 can be squeezed by the lower pressure cover 21. After compaction is completed, the sand box 7 is moved again by the servo motor 2 and the threaded rod 4. When the top of the sand box 7 passes the cleaning bar 8 again, the scrap material that overflows from the top of the sand box 7 due to compaction will be cleaned again by the cleaning shovel 12. The cleaned debris is discharged through the discharge cylinder 13.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A high-efficiency compacting forming device for casting sand mold, comprising a base (1), characterized in that: The base (1) is fixedly connected with a servo motor (2), the bottom of the base (1) is provided with a moving groove (3), the output end of the servo motor (2) is fixedly connected with a threaded rod (4), both ends of the threaded rod (4) are rotatably connected in the moving groove (3), the outer thread of the threaded rod (4) is provided with a sand box (7), both sides of the base (1) are provided with a limiting groove (5), the limiting groove (5) is fixedly connected with a slide rod (6), both sides of the sand box (7) are slidably connected to the outer arc surface of the slide rod (6), the top of the base (1) is fixedly connected with a cleaning strip (8), the cleaning strip (8) is provided with a cleaning groove (10), one side of the cleaning strip (8) is fixedly connected with a rotating motor (9), the output end of the rotating motor (9) is fixedly connected with a rotating auger (11), both ends of the rotating auger (11) are rotatably connected in the cleaning groove (10), both sides of the cleaning strip (8) corresponding to the cleaning groove (10) are fixedly connected with a cleaning shovel (12), the end of the cleaning strip (8) away from the rotating motor (9) is fixedly connected with a discharge cylinder (13).
2. The high-efficiency compacting forming device for casting sand molds according to claim 1, characterized in that: The top of the base (1) is fixedly connected with two electric lifting blocks (14), the top of the two electric lifting blocks (14) is fixedly connected with a top block (15).
3. The high-efficiency compacting forming device for casting sand molds according to claim 2, characterized in that: The top of the top block (15) is fixedly connected with an electric push rod (16), the bottom of the electric push rod (16) is fixedly connected with a pressing cover (21) penetrating through the top block (15).
4. The high-efficiency compacting forming device for casting sand molds according to claim 3, characterized in that: The bottom of the top block (15) is fixedly connected with four first rotating seats (17), two first rotating seats (17) form a group.
5. The high-efficiency compacting forming device for casting sand molds according to claim 4, characterized in that: The bottom of the first rotating seat (17) is rotatably connected with a pressing arm (18), the bottom of the pressing arm (18) is rotatably connected with a second rotating seat (19).
6. The high-efficiency compacting forming device for casting sand molds according to claim 5, characterized in that: The top of the pressing cover (21) is provided with two sliding grooves (20), each group of second rotating seats (19) is slidably connected in the sliding groove (20).