A sand scraping device for a molding machine

Abstract

The utility model relates to ferrous metal casting technical field, concretely is a molding sand scraping device of molding machine, including machine body, mounting bracket, the mounting bracket sets up one side of machine body, electric push rod, electric push rod sets up one side of mounting bracket, transverse plate, transverse plate key connection is in the output of electric push rod, main scraper, main scraper sets up one side of transverse plate, and main scraper is mainly sanding board, adjusting assembly, adjusting assembly includes two groups of movable plate and two groups of auxiliary scraper. The molding sand scraping device of molding machine, through setting movable auxiliary scraper, and then when responding to multiple mould boxes, moves auxiliary scraper to increase the sanding distance of the device, makes the cooperation of main scraper and auxiliary scraper can respond to multiple mould boxes, increases the use range of the device, guarantees the consistency of sanding intensity and effect simultaneously, avoids the condition that sand mould is damaged due to sanding excessive of partial mould box, improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ferrous metal casting technology, specifically to a sand scraping device for a molding machine. Background Technology

[0002] As is well known, in the field of ferrous metal casting production, the molding machine is the key equipment for manufacturing sand molds, and the sand scraping device, as an important component of the molding machine, directly affects the dimensional accuracy and surface quality of the sand mold. Most existing molding machines have a single scraping plate, and the position of the scraping plate is adjusted by setting a drive structure to deal with multiple mold boxes, thereby completing the cleaning of excess molding sand on the surface of the sand mold.

[0003] However, when faced with multiple mold boxes, this single scraper design reveals its flaws. Since a single scraper can only scrape one mold box at a time, when multiple mold boxes need to be processed, the position of the scraper needs to be repeatedly adjusted by the drive structure, which increases the idle time of the equipment and reduces production efficiency. At the same time, when a single scraper is dealing with continuous scraping tasks for multiple mold boxes, it is difficult to ensure the consistency of scraping force and effect. It is easy for some mold boxes to be over-scraped, resulting in sand mold damage, or for some mold boxes to be incompletely scraped, leaving excess molding sand. Summary of the Invention

[0004] Technical problems to be solved In order to overcome the problem that the single scraper of the existing molding machine's sand scraping device cannot handle multiple mold boxes, this utility model provides a molding machine sand scraping device that can handle multiple mold boxes.

[0005] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a sand scraping device for a molding machine, comprising a machine body, a mounting frame disposed on one side of the machine body, an electric push rod disposed on one side of the mounting frame, a horizontal plate keyed to the output end of the electric push rod, a main scraper disposed on one side of the horizontal plate, the main scraper being the primary sand scraping plate, an adjusting assembly comprising two sets of movable plates and two sets of auxiliary scrapers, the auxiliary scrapers being slidably disposed on the outside of the main scraper, the two sets of auxiliary scrapers being located on both sides of the main scraper, the auxiliary scrapers extending the scraping distance, enabling the main scraper and auxiliary scrapers to perform sand scraping work on multiple mold boxes, swing plates rotatably disposed on both sides of the auxiliary scrapers, the two sets of movable plates being slidably disposed on both sides of the horizontal plate, the side of the swing plate away from the auxiliary scraper being rotatably disposed inside the movable plate, a protrusion disposed on one side of the movable plate, and a driving assembly disposed inside the horizontal plate.

[0006] Preferably, two sets of mounting seats are provided on one side of the machine body, and a rotating motor is provided on one side of the mounting seat. The output end of the rotating motor extends into the mounting seat and is connected to the second threaded tube key. The two sides of the mounting bracket are respectively screwed onto the outside of the two sets of second threaded tubes.

[0007] Furthermore, the auxiliary scraper is provided with fixed shafts on both sides, and the swing plate is rotatably disposed on the outside of the fixed shafts.

[0008] Furthermore, the movable plate is provided with two sets of central shafts inside, and the side of the swing plate away from the auxiliary scraper is rotatably set on the outside of the central shaft.

[0009] In a further embodiment, limit rods are provided on both sides of the horizontal plate, and a balance block is provided on one side of the auxiliary scraper, with the balance block slidably disposed outside the limit rods.

[0010] Based on the aforementioned scheme, a support plate is provided on the outer side of the limiting rod, and a spring is provided on one side of the support plate. The end of the spring away from the support plate is fixedly installed with the balance block.

[0011] Furthermore, based on the aforementioned scheme, the driving component includes a rotary motor, which is disposed inside the horizontal plate. The output end of the rotary motor is key-connected to a first threaded tube. A sleeve is screwed onto the outer side of the first threaded tube. Two sets of connecting rods are disposed on the outer side of the sleeve. The end of the connecting rod away from the sleeve passes through the horizontal plate, and a pulley is rotatably disposed on the outer side of the connecting rod. The outer side of the pulley contacts the outer side of the protrusion.

[0012] Furthermore, based on the aforementioned scheme, buffer pads are provided on both sides of the main scraper. The buffer pads are rubber buffer pads and are located between the two sets of auxiliary scrapers.

[0013] Beneficial effects The molding sand scraping device of this molding machine has a movable auxiliary scraper. When dealing with multiple mold boxes, the scraping distance of the device can be increased by moving the auxiliary scraper. This allows the main scraper and the auxiliary scraper to work together to handle multiple mold boxes, increasing the range of application of the device. At the same time, it ensures the consistency of scraping force and effect, avoids the situation of excessive scraping of some mold boxes leading to sand mold damage, and improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a bottom view of the main scraper of this utility model; Figure 3 This is a cross-sectional view of the horizontal plate of this utility model; Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model; Figure 5 This is a cross-sectional view of the movable plate of this utility model; Figure 6 This is a schematic diagram of the structure of the drive component of this utility model; Figure 7 This is a schematic diagram of the structure of the mounting base of this utility model.

[0015] In the diagram: 1. Body; 2. Adjustment assembly; 201. Auxiliary scraper; 202. Movable plate; 203. Support plate; 204. Spring; 205. Balance block; 206. Fixed shaft; 207. Swing plate; 208. Central shaft; 209. Protrusion; 210. Limiting rod; 3. Drive assembly; 301. Rotary motor; 302. Sleeve; 303. Connecting rod; 304. Pulley; 305. First threaded pipe; 4. Mounting bracket; 5. Horizontal plate; 6. Electric push rod; 7. Main scraper; 8. Buffer pad; 9. Rotary motor; 10. Second threaded pipe; 11. Mounting base. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] See Figures 1-7 A molding sand scraping device for a molding machine includes a machine body 1. Two sets of mounting seats 11 are bolted to the top of the machine body 1. A rotary motor 9 is provided on the rear side of the mounting seat 11. The output end of the rotary motor 9 extends into the mounting seat 11 and is keyed to a second threaded tube 10. Mounting brackets 4 are screwed onto the outer sides of the two sets of second threaded tubes 10. An electric push rod 6 is provided on the top of the mounting bracket 4. A horizontal plate 5 is keyed to the output end of the electric push rod 6. A main scraper 7 is fixedly connected to the bottom of the horizontal plate 5. An adjustment component 2 is provided on the outer side of the horizontal plate 5, and a drive component 3 is provided inside the horizontal plate 5.

[0018] After the rotating motor 9 is turned on, the output end of the rotating motor 9 will drive the second threaded tube 10 to rotate. The rotation of the second threaded tube 10 will drive the mounting bracket 4 to move. The movement of the mounting bracket 4 will cause the main scraper 7 to move laterally. After the electric push rod 6 is turned on, the output end of the electric push rod 6 will drive the main scraper 7 to move longitudinally by driving the horizontal plate 5 to move longitudinally.

[0019] First, refer to Figures 1 to 5In this embodiment, the adjustment component 2 includes two sets of auxiliary scrapers 201 and two sets of movable plates 202. The two sets of auxiliary scrapers 201 are slidably connected to both sides of the main scraper 7. Fixed shafts 206 are welded to both sides of the auxiliary scrapers 201. Swing plates 207 are rotatably connected to the outer side of the fixed shafts 206. The two sets of movable plates 202 are slidably connected to both sides of the horizontal plate 5. A protrusion 209 is welded to the top of the movable plate 202. The protrusion 209 is semi-elliptical. Two sets of central shafts 208 are welded inside the movable plate 202. The side of the swing plate 207 away from the fixed shaft 206 is rotatably connected to the outer side of the central shaft 208.

[0020] Specifically, in order to maintain the balance of the auxiliary scraper 201 during movement, limit rods 210 are welded on both sides of the horizontal plate 5. A balance block 205 is fixedly connected to the top of the auxiliary scraper 201, and the balance block 205 is slidably connected to the outside of the limit rods 210. Thus, on the one hand, the limit rods 210 maintain the balance of the auxiliary scraper 201 during movement, preventing the auxiliary scraper 201 from becoming unbalanced and swaying during movement, and ensuring the normal displacement of the auxiliary scraper 201. On the other hand, the limit rods 210 restrict the direction of the auxiliary scraper 201, preventing the device from failing due to misalignment of the auxiliary scraper 201, and ensuring the normal use of the device.

[0021] Meanwhile, in order to enable the auxiliary scraper 201 to move back quickly, a support plate 203 is welded to the outside of the limiting rod 210. A spring 204 is fixedly connected between the support plate 203 and the balance block 205. Thus, when the auxiliary scraper 201 is pushed, the spring 204 will be squeezed by the balance block 205. When the auxiliary scraper 201 is no longer pushed, the spring 204 will bounce the auxiliary scraper 201 back to the initial position quickly, ensuring the reuse of the device.

[0022] Furthermore, in order to prevent the two sets of auxiliary scrapers 201 from colliding with each other during the return movement, buffer pads 8 are fixedly connected to both sides of the main scraper 7. The buffer pads 8 are rubber buffer pads and are located between the two sets of auxiliary scrapers 201. Thus, the buffer pads 8 can block the two sets of auxiliary scrapers 201, thus avoiding the situation where the two sets of auxiliary scrapers 201 collide with each other during the return movement.

[0023] When the protrusion 209 is pushed, the protrusion 209 will drive the movable plate 202 to move downward. The downward movement of the movable plate 202 will drive the swing plate 207 by driving the central shaft 208. At this time, one side of the swing plate 207 will swing around the fixed shaft 206 as the axis and push the fixed shaft 206 to move laterally. The lateral movement of the fixed shaft 206 will push the auxiliary scraper 201 to move laterally, thereby extending the scraping distance and enabling the device to handle multiple mold boxes.

[0024] Finally, see Figure 3 and Figure 6In this embodiment, the drive assembly 3 includes a rotary motor 301, which is a bidirectional motor whose output can rotate forward or backward. The rotary motor 301 is disposed inside the horizontal plate 5. The output of the rotary motor 301 is key-connected to a first threaded tube 305. A sleeve 302 is screwed onto the outer side of the first threaded tube 305. The rotation of the first threaded tube 305 will cause the sleeve 302 to move linearly. Two sets of connecting rods 303 are provided on the outer side of the sleeve 302, and the connecting rods 303 are away from the sleeve 302. One end of 2 passes through the horizontal plate 5, and a pulley 304 is rotatably provided on the outer side of the connecting rod 303. The outer side of the pulley 304 contacts the outer side of the protrusion 209. After the rotary motor 301 is turned on, the output end of the rotary motor 301 will drive the first threaded tube 305 to rotate. The rotation of the first threaded tube 305 will drive the sleeve 302 to move linearly. The movement of the sleeve 302 will drive the connecting rod 303 to move. The movement of the connecting rod 303 will drive the pulley 304 to move and push the protrusion 209 to move down.

[0025] The molding sand scraping device of this molding machine, by setting a movable auxiliary scraper 201, can increase the scraping distance of the device when dealing with multiple mold boxes. This allows the main scraper 7 and the auxiliary scraper 201 to work together to handle multiple mold boxes, increasing the range of application of the device. At the same time, it ensures the consistency of scraping force and effect, avoids the situation of excessive scraping of some mold boxes leading to sand mold damage, and improves production efficiency.

[0026] Working principle: When using the molding sand scraping device of this molding machine, first place the device in the desired position, then adjust the scraping distance. Specifically, turn on the rotary motor 301 so that its output end drives the first threaded tube 305 to rotate. The rotation of the first threaded tube 305 will cause the sleeve 302 to move linearly. The movement of the sleeve 302 will cause the connecting rod 303 to move. The movement of the connecting rod 303 will cause the pulley 304 to move and push the protrusion 209 downward. When the protrusion 209 is pushed, it will cause the movable plate 202 to move downward. The downward movement of the movable plate 202 will push the swing plate 207 by driving the central shaft 208. At this time, one side of the swing plate 207 will swing around the fixed shaft 206 and push the fixed shaft 206 to move laterally. The lateral movement of the fixed shaft 206 will push the auxiliary scraper 201 to move laterally, thereby extending the scraping distance and enabling the device to handle multiple mold boxes.

[0027] 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 sand scraping device for a molding machine, characterized in that, include: Body (1); Mounting bracket (4), which is disposed on one side of the body (1); An electric push rod (6) is provided on one side of the mounting bracket (4); A horizontal plate (5) is keyed to the output end of an electric push rod (6); The main scraper (7) is disposed on one side of the horizontal plate (5); Adjustment component (2), comprising two sets of movable plates (202) and two sets of auxiliary scrapers (201), wherein the auxiliary scrapers (201) are slidably disposed on the outside of the main scraper (7), and swing plates (207) are rotatably disposed on both sides of the auxiliary scrapers (201); the two sets of movable plates (202) are respectively slidably disposed on both sides of the horizontal plate (5); the side of the swing plate (207) away from the auxiliary scrapers (201) is rotatably disposed inside the movable plate (202); and a protrusion (209) is provided on one side of the movable plate (202); and The drive component (3) is disposed inside the cross plate (5).

2. The molding sand scraping device of the molding machine according to claim 1, characterized in that, Two sets of mounting seats (11) are provided on one side of the body (1). A rotating motor (9) is provided on one side of the mounting seat (11). The output end of the rotating motor (9) extends into the mounting seat (11) and is keyed to the second threaded tube (10). The two sides of the mounting bracket (4) are screwed onto the outside of the two sets of second threaded tubes (10).

3. The molding sand scraping device of the molding machine according to claim 1, characterized in that, The auxiliary scraper (201) is provided with fixed shafts (206) on both sides, and the swing plate (207) is rotatably disposed on the outside of the fixed shafts (206).

4. The molding sand scraping device of the molding machine according to claim 1, characterized in that, The movable plate (202) is provided with two sets of central shafts (208) inside, and the swing plate (207) is rotatably arranged on the side away from the auxiliary scraper (201) on the outside of the central shafts (208).

5. The molding sand scraping device for the molding machine according to claim 1, characterized in that, Limiting rods (210) are provided on both sides of the horizontal plate (5), and a balance block (205) is provided on one side of the auxiliary scraper (201). The balance block (205) is slidably disposed on the outside of the limiting rod (210).

6. The molding sand scraping device for the molding machine according to claim 5, characterized in that, A support plate (203) is provided on the outer side of the limiting rod (210), and a spring (204) is provided on one side of the support plate (203). The end of the spring (204) away from the support plate (203) is fixedly disposed with the balance block (205).

7. The molding sand scraping device for the molding machine according to claim 1, characterized in that, The drive assembly (3) includes a rotary motor (301), which is located inside the horizontal plate (5). The output end of the rotary motor (301) is keyed to a first threaded tube (305). A sleeve (302) is screwed onto the outside of the first threaded tube (305). Two sets of connecting rods (303) are provided on the outside of the sleeve (302). One end of the connecting rod (303) away from the sleeve (302) passes through the horizontal plate (5). A pulley (304) is rotatably provided on the outside of the connecting rod (303). The outside of the pulley (304) contacts the outside of the protrusion (209).

8. The molding sand scraping device for the molding machine according to claim 1, characterized in that, Both sides of the main scraper (7) are provided with buffer pads (8), which are rubber buffer pads and are located between the two sets of auxiliary scrapers (201).

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