Vibration compaction device for casting sand mold

Abstract

The utility model relates to the technical field of sand mold vibration compaction equipment, in particular to a cast sand mold vibration compaction device, which can provide omnidirectional vibration for a sand box by arranging a vibration device, can enable sand grains and binders to be uniformly and compactly distributed in the sand box and reduce surface defects of a sand mold, and can reduce the surface defects of the sand mold by arranging a pressing device. The lower pressing plate with the same size as the inner wall of the sand box is used for compacting the sand mold, the pressure provided for the sand mold is large, and the strength of the sand mold can be improved; comprising a body; the device further comprises a vibration device, a positioning clamping device, a pressing device and a sand scraping device, and the vibration device, the positioning clamping device, the pressing device and the sand scraping device are all installed on the machine body. The machine body provides elastic support, the vibration device provides omni-directional vibration, the positioning and clamping device is used for containing a sand mold and a mold, the pressing device is used for compacting the sand mold, and the sand scraping device is used for scraping redundant sand grains.

Description

Technical Field

[0001] This utility model relates to the technical field of sand mold vibration compaction equipment, and in particular to a casting sand mold vibration compaction device. Background Technology

[0002] Sand molds are commonly used tools in the foundry industry, and they are usually manufactured by vibration compaction.

[0003] Existing sand mold vibration compaction equipment, such as the Chinese utility model patent CN215090550U (a sand mold vibration compaction device in V-process casting), represents a class of prior art whose main structure includes an installation groove, a negative pressure suction box, a sand box, a vibration component, and a pressing mechanism. The installation groove provides elastic support to the sand box, the negative pressure suction box provides vacuum negative pressure to the sand box, the sand box holds dry sand, the vibration component provides vibration to the sand box, and the pressing mechanism compacts the dry sand.

[0004] However, the existing technology and equipment still have the following problems when in use: the vibration component of the existing machine vibrates only in the horizontal direction, which easily causes uneven distribution of dry sand, resulting in more defects on the surface of the sand mold. In addition, the existing machine uses a lower pressure plate smaller than the sand box to compact the sand mold, which provides less pressure to the sand mold, resulting in poor sand mold strength. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a casting sand mold vibration compaction device that provides omnidirectional vibration to the sand box by setting a vibration device, which can make the sand particles and binder evenly and densely distributed inside the sand box, reducing surface defects of the sand mold. Furthermore, by setting a pressing device, a pressing plate of the same size as the inner wall of the sand box is used to compact the sand mold, which provides greater pressure to the sand mold and can improve the strength of the sand mold.

[0006] This utility model discloses a casting sand mold vibration compaction device, including a machine body; it also includes a vibration device, a positioning and clamping device, a pressing device, and a sand scraping device, all of which are mounted on the machine body; the machine body provides elastic support, the vibration device provides omnidirectional vibration, the positioning and clamping device holds the sand mold and die, the pressing device compacts the sand mold, and the sand scraping device removes excess sand particles.

[0007] Preferably, the machine body includes multiple support seats, a base plate, four brackets (first type), four guide pillars (first type), four rubber pillars, four springs, a worktable, and a second bracket. The base plate is mounted on the top of the multiple support seats. The four brackets (first type) are respectively mounted on the four corners of the top of the base plate. The four guide pillars (first type) are slidably mounted inside the four brackets (first type). The four rubber pillars and four springs are respectively fixedly mounted on the top of the brackets (first type), with the four rubber pillars located inside the four springs and outside the four guide pillars (first type). The worktable is mounted on the top of the four guide pillars (first type), the four rubber pillars, and the four springs. The second bracket is mounted on the top of the worktable, and the top of the second bracket is provided with a mounting groove (first type) and multiple through holes (first type). The brackets (first type), guide pillars (first type), rubber pillars, and springs cooperate to provide elastic support to the worktable and prevent the worktable from shifting excessively.

[0008] Preferably, the vibration device includes a support three and four vibration motors. The support three is fixedly installed at the bottom of the workbench, and the four vibration motors are respectively installed at the four sides of the support three. The four vibration motors cooperate to provide omnidirectional vibration to the workbench.

[0009] Preferably, the positioning and clamping device includes a positioning block, two supports, two cylinders, two sets of guide pillars, two clamping plates, and a sand box. The positioning block and the two supports are installed on the top of the workbench. The two supports are respectively provided with mounting grooves and a set of through holes. The two cylinders are respectively fixedly installed in the two mounting grooves of the two supports. The two sets of guide pillars are respectively slidably installed in the two sets of through holes of the two supports. The two clamping plates are respectively installed on the two cylinders and the two sets of guide pillars, and the two clamping plates are located between the two cylinders. The sand box is placed on the top of the workbench, and the sand box and the positioning block are in contact. The positioning block positions the front and rear of the sand box. The cylinders provide power to drive the clamping plates to move closer or further apart. The clamping plates move closer together to center and clamp the sand box.

[0010] Preferably, the pressing device includes a cylinder two, multiple guide pillars three, and a pressing plate. The cylinder two is fixedly installed in the mounting groove one of the bracket two. The multiple guide pillars three are slidably installed in the multiple through holes one of the bracket two. The pressing plate is installed at the bottom of the cylinder two and the multiple guide pillars three, and the pressing plate is aligned with the inner side wall of the sand box after centering and clamping. The cylinder two provides power to drive the pressing plate to move up and down. The pressing plate moves down to compact the sand mold inside the sand box.

[0011] Preferably, the sand scraping device includes two baffles, four brackets (five), a linear motor, two brackets (six), a guide post (four), a slider, and a sand scraping block. The two baffles are respectively installed on the top of the two clamping plates, the four brackets (five) are all installed in the middle of the brackets (two), the linear motor is installed at the bottom of the two brackets (five), the two brackets (six) are respectively installed at the bottom of the other two brackets (five), the guide post (four) is installed on the two brackets (six), the slider is slidably installed on the guide post (four), and the sand scraping block is installed at the bottom of the linear motor and the slider, with the bottom of the sand scraping block in sliding contact with the top of the sand box. The baffles prevent sand particles leaking from the side from entering the machine and causing the machine to jam. The linear motor provides power to drive the sand scraping block to move back and forth, and the forward movement of the sand scraping block removes excess sand particles from the top of the sand box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by providing omnidirectional vibration to the sand box, the sand particles and binder can be evenly and densely distributed inside the sand box, resulting in fewer defects on the surface of the sand mold; and by using a lower pressure plate that is the same size as the inner wall of the sand box to compact the sand mold, the pressure provided to the sand mold is greater, which can improve the strength of the sand mold. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is an isometric structural diagram of the fuselage and vibration device;

[0015] Figure 3 yes Figure 2 A schematic diagram of the partial isometric cross-sectional structure at point A;

[0016] Figure 4 This is a schematic diagram of the isometric cross-sectional structure of the pressing device;

[0017] Figure 5 This is a schematic diagram of the isometric cross-sectional structure of the sand scraping device.

[0018] The attached diagram is labeled as follows: 01, machine body; 11, support base; 12, base plate; 13, bracket one; 14, guide column one; 15, rubber column; 16, spring; 17, worktable; 18, bracket two; 02, vibration device; 21, bracket three; 22, vibration motor; 03, positioning and clamping device; 31, positioning block; 32, bracket four; 33, cylinder one; 34, guide column two; 35, clamping plate; 36, sand box; 04, pressing device; 41, cylinder two; 42, guide column three; 43, pressing plate; 05, sand scraping device; 51, baffle; 52, bracket five; 53, linear motor; 54, bracket six; 55, guide column four; 56, slider; 57, sand scraping block. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0020] like Figure 1 As shown, it includes a machine body 01; it also includes a vibration device 02, a positioning and clamping device 03, a pressing device 04, and a sand scraping device 05. The vibration device 02, the positioning and clamping device 03, the pressing device 04, and the sand scraping device 05 are all mounted on the machine body 01. The machine body 01 provides elastic support, the vibration device 02 provides omnidirectional vibration, the positioning and clamping device 03 holds the sand mold and the die, the pressing device 04 compacts the sand mold, and the sand scraping device 05 scrapes away excess sand particles.

[0021] like Figure 2 and Figure 3 As shown, the machine body 01 includes multiple support seats 11, a base plate 12, four brackets 13, four guide pillars 14, four rubber pillars 15, four springs 16, a worktable 17, and a second bracket 18. The base plate 12 is installed on the top of the multiple support seats 11. The four brackets 13 are respectively installed at the four corners of the top of the base plate 12. The four guide pillars 14 are respectively slidably installed inside the four brackets 13. The four rubber pillars 15 and the four springs 16 are respectively fixedly installed on the top of the brackets 13, with the four rubber pillars 15 located inside the four springs 16 and outside the four guide pillars 14. The worktable 17 is installed on the top of the four guide pillars 14, the four rubber pillars 15, and the four springs 16. The second bracket 18 is installed on the top of the worktable 17. The top of the second bracket 18 is provided with a mounting groove and multiple through holes.

[0022] like Figure 3 As shown, the vibration device 02 includes a support 21 and four vibration motors 22. The support 21 is fixedly installed at the bottom of the workbench 17, and the four vibration motors 22 are respectively installed at the four sides of the support 21.

[0023] like Figure 4As shown, the positioning and clamping device 03 includes a positioning block 31, two brackets 32, two cylinders 33, two sets of guide pillars 34, two clamping plates 35, and a sand box 36. The positioning block 31 and the two brackets 32 are both installed on the top of the workbench 17. The two brackets 32 are respectively provided with mounting grooves and a set of through holes. The two cylinders 33 are respectively fixedly installed in the two mounting grooves of the two brackets 32. The two sets of guide pillars 34 are respectively slidably installed in the two sets of through holes of the two brackets 32. The two clamping plates 35 are respectively installed on the two cylinders 33 and the two sets of guide pillars 34, and the two clamping plates 35 are located between the two cylinders 33. The sand box 36 is placed on the top of the workbench 17, and the sand box 36 and the positioning block 31 are in contact.

[0024] like Figure 4 As shown, the pressing device 04 includes a second cylinder 41, multiple guide pillars 42, and a pressing plate 43. The second cylinder 41 is fixedly installed in the mounting groove 1 of the second bracket 18. The multiple guide pillars 42 are slidably installed in the multiple through holes 1 of the second bracket 18. The pressing plate 43 is installed at the bottom of the second cylinder 41 and the multiple guide pillars 42, and the pressing plate 43 is aligned with the inner side wall of the sand box 36 after centering and clamping.

[0025] First, place the sand box 36 on top of the workbench 17 and push it to fit tightly against the positioning block 31. The positioning block 31 positions the sand box 36. Then, turn on the cylinder 33 to provide power, driving the clamping plates 35 to move closer or further apart. The clamping plates 35 move closer together to center and clamp the sand box 36. Then, put the mold into the sand box 36 and add sand and adhesive in batches. At the same time, turn on the vibration motors 22. The four vibration motors 22 work together to provide omnidirectional vibration to the workbench 17. 13, 14, 15, and 16 work together to provide elastic support to the worktable 17 and prevent the worktable 17 from shifting excessively. Vibration makes the sand particles inside the sand box 36 evenly and densely distributed. After the sand box 36 is full, the excess sand particles at the top of the sand box 36 are manually scraped off. Then, cylinder 41 is opened. Cylinder 41 provides power to drive the lower pressure plate 43 to move up and down. The lower pressure plate 43 moves down to compact the sand mold inside the sand box 36. After that, the sand box 36 can be replaced to vibrate and compact the next sand mold. Example 2

[0026] In addition to Example 1, it also includes:

[0027] like Figure 5As shown, the sand scraping device 05 includes two baffles 51, four brackets 52, a linear motor 53, two brackets 54, a guide post 55, a slider 56, and a sand scraping block 57. The two baffles 51 are respectively installed on the top of the two clamping plates 35. The four brackets 52 are all installed in the middle of the bracket 18. The linear motor 53 is installed at the bottom of the two brackets 52. The two brackets 54 are respectively installed at the bottom of the other two brackets 52. The guide post 55 is installed on the two brackets 6 54. The slider 56 is slidably installed on the guide post 55. The sand scraping block 57 is installed at the bottom of the linear motor 53 and the slider 56, and the bottom of the sand scraping block 57 is in sliding contact with the top of the sand box 36.

[0028] First, place the sand box 36 on top of the workbench 17 and push it to fit tightly against the positioning block 31. The positioning block 31 positions the sand box 36 in the front and back. Then, turn on the cylinder 33 to provide power and drive the clamping plates 35 to move closer or further apart. The clamping plates 35 move closer together to center and clamp the sand box 36. Then, put the mold into the sand box 36 and add sand and adhesive in batches. At the same time, turn on the vibration motors 22. The four vibration motors 22 work together to provide omnidirectional vibration to the workbench 17. The bracket 13, guide post 14, rubber column 15 and spring 16 work together to provide elasticity to the workbench 17. The vibration supports and prevents the worktable 17 from shifting excessively. The vibration ensures that the sand particles inside the sand box 36 are evenly and densely distributed. After the sand box 36 is full, the linear motor 53 is turned on. The linear motor 53 provides power to drive the sand scraper 57 to move back and forth. The sand scraper 57 moves forward to scrape off the excess sand particles at the top of the sand box 36. The baffle 51 prevents sand particles leaking from the side from entering the machine and causing the machine to jam. Then, the cylinder 41 is turned on. The cylinder 41 provides power to drive the lower pressure plate 43 to move up and down. The lower pressure plate 43 moves down to compact the sand mold inside the sand box 36. After that, the sand box 36 can be replaced to vibrate and compact the next sand mold.

[0029] like Figures 1 to 5As shown, this utility model discloses a casting sand mold vibration compaction device. During operation, the sand box 36 is first placed on top of the worktable 17 and pushed to adhere to the positioning block 31. The positioning block 31 positions the sand box 36. Then, cylinder 33 is activated, providing power to drive the clamping plates 35 to move closer or further apart. The clamping plates 35 move closer together to center and clamp the sand box 36. Next, the mold is placed into the sand box 36, and sand and binder are added in batches. Simultaneously, the vibration motors 22 are activated. The four vibration motors 22 work together to provide omnidirectional vibration to the worktable 17. The device also includes a support 13, guide pillars 14, rubber pillars 15, and springs 1... 6. The machine provides elastic support to the worktable 17 and prevents the worktable 17 from shifting excessively. Vibration makes the sand particles inside the sand box 36 evenly and densely distributed. After the sand box 36 is full, the linear motor 53 is turned on. The linear motor 53 provides power to drive the sand scraper 57 to move back and forth. The sand scraper 57 moves forward to scrape off the excess sand particles at the top of the sand box 36. The baffle 51 prevents sand particles leaking from the side from entering the machine and causing the machine to jam. Then, the cylinder 41 is turned on. The cylinder 41 provides power to drive the lower pressure plate 43 to move up and down. The lower pressure plate 43 moves down to compact the sand mold inside the sand box 36. After that, the sand box 36 can be replaced to vibrate and compact the next sand mold.

[0030] The four rubber pillars 15, four springs 16, four vibration motors 22, two cylinders 33, cylinder 41, and linear motor 53 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0031] The main functions achieved by this utility model are as follows: by setting up a vibration device 02 to provide omnidirectional vibration to the sand box 36, the sand particles and binder can be evenly and densely distributed inside the sand box 36, reducing surface defects of the sand mold. Furthermore, by setting up a pressing device 04, a pressing plate 43 of the same size as the inner wall of the sand box 36 is used to compact the sand mold, providing greater pressure to the sand mold and improving its strength. This solves the existing technical problems that the vibration components of the existing machines only vibrate in the horizontal direction, which easily leads to uneven distribution of dry sand and more surface defects of the sand mold. Also, the existing machines use a pressing plate smaller than the sand box to compact the sand mold, providing less pressure and resulting in poor sand mold strength.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vibratory compaction device for casting sand molds, comprising a machine body (01); characterized in that, It also includes a vibration device (02), a positioning clamping device (03), a pressing device (04), and a sand scraping device (05). The vibration device (02), the positioning clamping device (03), the pressing device (04), and the sand scraping device (05) are all installed on the machine body (01). The machine body (01) provides elastic support, the vibration device (02) provides omnidirectional vibration, the positioning clamping device (03) holds the sand mold and the die, the pressing device (04) compacts the sand mold, and the sand scraping device (05) scrapes off excess sand particles.

2. The casting sand mold vibration compaction device as described in claim 1, characterized in that, The machine body (01) includes multiple support seats (11), a base plate (12), four brackets (13), four guide pillars (14), four rubber pillars (15), four springs (16), a worktable (17), and a second bracket (18). The base plate (12) is installed on the top of the multiple support seats (11). The four brackets (13) are respectively installed at the four corners of the top of the base plate (12). The four guide pillars (14) are respectively slidably installed inside the four brackets (13). The four rubber pillars (15) and four springs (16) are respectively fixedly installed on the top of the brackets (13). The four rubber pillars (15) are respectively located inside the four springs (16) and outside the four guide pillars (14). The worktable (17) is installed on the top of the four guide pillars (14), the four rubber pillars (15), and the four springs (16). The second bracket (18) is installed on the top of the worktable (17). The top of the second bracket (18) is provided with an installation groove and multiple through holes.

3. The casting sand mold vibration compaction device as described in claim 2, characterized in that, The vibration device (02) includes a support three (21) and four vibration motors (22). The support three (21) is fixedly installed at the bottom of the workbench (17), and the four vibration motors (22) are respectively installed at the four sides of the support three (21).

4. The casting sand mold vibration compaction device as described in claim 3, characterized in that, The positioning and clamping device (03) includes a positioning block (31), two brackets (32), two cylinders (33), two sets of guide pillars (34), two clamping plates (35), and a sand box (36). The positioning block (31) and the two brackets (32) are installed on the top of the workbench (17). The two brackets (32) are respectively provided with a mounting groove and a set of through holes. The two cylinders (33) are respectively fixedly installed in the two mounting grooves of the two brackets (32). The two sets of guide pillars (34) are respectively slidably installed in the two sets of through holes of the two brackets (32). The two clamping plates (35) are respectively installed on the two cylinders (33) and the two sets of guide pillars (34), and the two clamping plates (35) are located between the two cylinders (33). The sand box (36) is placed on the top of the workbench (17), and the sand box (36) and the positioning block (31) are in contact.

5. A vibratory compaction device for casting sand molds as described in claim 4, characterized in that, The pressing device (04) includes cylinder two (41), multiple guide pillars three (42) and pressing plate (43). Cylinder two (41) is fixedly installed in mounting groove one of bracket two (18). Multiple guide pillars three (42) are slidably installed in multiple through holes one of bracket two (18). Pressing plate (43) is installed at the bottom of cylinder two (41) and multiple guide pillars three (42), and pressing plate (43) is aligned with the inner side wall of the sand box (36) after centering and clamping.

6. The casting sand mold vibration compaction device as described in claim 5, characterized in that, The scraping device (05) includes two baffles (51), four brackets (52), a linear motor (53), two brackets (54), a guide post (55), a slider (56), and a scraping block (57). The two baffles (51) are respectively installed on the top of the two clamps (35). The four brackets (52) are all installed in the middle of the bracket (18). The linear motor (53) is installed at the bottom of the two brackets (52). The two brackets (54) are respectively installed at the bottom of the other two brackets (52). The guide post (55) is installed on the two brackets (54). The slider (56) is slidably installed on the guide post (55). The scraping block (57) is installed at the bottom of the linear motor (53) and the slider (56), and the bottom of the scraping block (57) and the top of the sand box (36) are in sliding contact.

Images