Automatic molding machine for iron mold sand coating

Abstract

The invention relates to the technical field of molding machines, in particular to an automatic molding machine for iron mold sand coating. The device comprises a machine body, a hydraulic cylinder is arranged at the bottom of the machine body, a workbench is arranged at the end of the hydraulic cylinder, a mold is arranged on the surface of the workbench, a slicking assembly is arranged on the surface of the workbench, hollow adjusting assemblies are arranged on the two sides of the slicking assembly, and a beating assembly is arranged on one side of each hollow adjusting assembly. The welt rolling wheel drives an extension rod to enable a main gear to coaxially rotate, the main gear drives an auxiliary gear to rotate in an engaged mode in the rotating process, the auxiliary gear drives an eccentric wheel arranged at the end of a supporting rod to coaxially rotate in the rotating process, and the eccentric wheel presses a base plate arranged below the eccentric wheel in the rotating process; and the sand body close to the side wall of the sand box is pulled and inserted in a reciprocating mode through the inserting rod, so that the hollow gap can be rapidly recognized, and the hollow position is automatically filled with the sand body.

Description

Technical Field

[0001] The invention relates to the technical field of molding machines, in particular to an automatic molding machine for covering iron molds with sand. Background Art

[0002] The molding machine is a casting equipment used to make sand molds. Its main functions are: filling sand, filling loose molding sand into the sand box; compacting the molding sand, making the loose molding sand in the sand box compact by different methods such as vibration, compaction, vibration pressure, and shot pressure, so that the sand mold has the necessary strength during transportation and pouring; demolding, using different mechanisms to take the pattern out of the compacted sand mold.

[0003] There are many existing technologies for molding devices, such as:

[0004] Chinese patent publication number CN113441687B discloses an automatic molding machine for casting, which specifically relates to the field of casting mechanical molding machines, including a conveyor belt, a detection platform, a filling platform and an extrusion platform are arranged on one side of the conveyor belt, the filling platform is located horizontally between the detection platform and the extrusion platform, an extension platform is fixedly arranged on the top of the detection platform close to the conveyor belt, a detection mechanism is fixedly installed on the bottom of the extension platform, a slide groove is opened inside the filling platform, a slide rod runs through the inside of the slide groove, and the slide rod is vertically arranged between the filling platform, a fixed ring is fixedly arranged at one end of the slide rod, and a No. 1 electric push rod is fixedly arranged at the end of the slide rod away from the filling pipe, and the No. 1 electric push rod is fixedly arranged on the side of the filling platform away from the conveyor belt. The present invention is convenient for automatic detection, sand filling and compaction by setting up a detection platform, a filling platform and an extrusion platform, and can automatically select the corresponding molding plate according to the sand box, with a high degree of automation and labor saving.

[0005] At present, the traditional winding device is used to fill the sand box with sand and press it. However, in the process of pressing the sand inside the sand box, when there are hollow gaps inside the sand box, the sand in the hollow gaps is subjected to uneven pressure during the pressing and molding process, resulting in poor molding effect.

[0006] In view of this, we propose an automatic molding machine for sand coating of iron molds. Summary of the invention

[0007] The object of the present invention is to provide an automatic molding machine for sand coating of iron molds to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned object, the present invention provides an automatic molding machine for sand coating of iron molds, comprising a machine body, a hydraulic cylinder is provided at the bottom of the machine body, a workbench is provided at the end of the hydraulic cylinder, a mold is provided on the surface of the workbench, clamping assemblies are provided on both sides of the mold, the clamping assemblies are used to clamp and flip the mold, a sand box is provided on the surface of the mold, a pressing plate is provided on the top of the machine body, and the end of the hydraulic cylinder drives the mold to move in a vertical direction so that the pressing plate extrude and mold the sand body inside the sand box;

[0009] A scraping component is provided on the surface of the workbench, and the scraping component is used to scrape the sand body filled into the sand box so that the sand body is evenly filled inside. Hollow adjustment components are provided on both sides of the scraping component. The hollow adjustment component is used to reciprocate the sand body close to the side wall of the sand box to fill the hollow position during the process of scraping the sand body inside the sand box. A knocking component is provided on one side of the hollow adjustment component, and the knocking component is used to remove the sand body attached to the surface of the sand box during the process of scraping the sand body inside the sand box by the scraping component.

[0010] As a further improvement of the present technical solution, the clamping assembly includes a cylinder arranged at the bottom of the workbench, the piston rod at the end of the cylinder is provided with a support plate, a rotating motor is provided on the surface of the support plate, and a clamping plate is provided at the output end of the rotating motor, and the clamping plate is used to clamp and fix both sides of the mold.

[0011] As a further improvement of the present technical solution, the scraping assembly includes a servo motor arranged on one side of the workbench surface, a screw is provided at the output end of the servo motor, a movable frame is provided on the surface of the screw, a scraper is connected to the bottom of the movable frame through a screw, and through holes are opened on both sides of the scraper surface.

[0012] As a further improvement of the present technical solution, the two sides of the scraper are set to be sloped, the two sides of 40 are flush with the top of the sand box, and a toothed plate is provided at the bottom of the scraper.

[0013] As a further improvement of the technical solution, the hollow adjustment assembly includes edge rollers arranged on both sides of the movable frame, an extension rod is provided on the top of the edge roller, a main gear is provided on the top of the extension rod, a sub-gear is vertically meshed with one side of the main gear, the sub-gear rotates on the surface of the support rod, an eccentric wheel is provided at the end of the support rod, a base plate is provided under the eccentric wheel, a threaded column is provided at the bottom of the base plate, an insertion rod is threadedly connected to the bottom of the threaded column, and a reset spring is provided between the base plate and the scraper.

[0014] As a further improvement of the technical solution, the surface of the insertion rod is provided with anchor thorns, and the anchor thorns are arranged in a ring shape with an opening upward on the surface of the insertion rod, and the anchor thorns can pass through the through holes opened on both sides of the scraper surface.

[0015] As a further improvement of the technical solution, the striking assembly includes a first rack arranged on one side of the base plate, a rotating gear is provided on one side of the first rack, a hollow column is provided above the side of the rotating gear away from the first rack, a second rack is slidably provided on the inner wall of the hollow column, a striking ball is provided at the bottom of the second rack, and the surface of the striking ball is wrapped with a rubber sleeve.

[0016] As a further improvement of the technical solution, an elastic member is provided inside the hollow column, and two ends of the elastic member are respectively connected to the inner wall of the hollow column and the top of the second rack.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the automatic molding machine for sand coating of iron molds, both sides of the scraper are set to be sloped, that is, when the scraper passes through the sand body higher than the top of the sand box, the higher sand body slides to the other side along the slope surface, thereby preventing the sand body from overflowing from both sides of the scraper to the outside, and automatically flattening the sand body stacked inside the sand box, so that the sand body is evenly stressed during the pressing process, thereby improving the molding effect, and at the same time reducing the overflow of the sand body during the flattening process to avoid the sand body from being contaminated.

[0019] 2. In the automatic molding machine for covering iron molds with sand, the edge roller rotates in contact with the side wall of the sand box, the edge roller drives the extension rod to make the main gear rotate coaxially, the main gear drives the sub-gear to mesh and rotate during the rotation, and the sub-gear drives the eccentric wheel provided at the end of the support rod to rotate coaxially during the rotation, the eccentric wheel presses the base plate provided thereunder during the rotation, and the base plate drives the threaded column and the insertion rod provided at the bottom thereof to move downward in the vertical direction, and during the downward movement, the reset spring is deformed by the pressure, and when the eccentric wheel stops squeezing the base plate during the rotation, the base plate is reset by the force of the reset spring, so that the insertion rod reciprocates the sand body close to the side wall of the sand box, so that the hollow gap can be quickly identified, and the sand body can automatically fill the hollow space, thereby improving the molding effect.

[0020] 3. In the automatic molding machine for covering the iron mold with sand, when the base plate drives the threaded column and the insertion rod to reciprocate and insert the sand body close to the side wall of the sand box to identify the hollow gap, the first rack drives the rotating gear to rotate periodically in different directions during the reciprocating movement, and the rotating gear drives the second rack to reciprocate in the vertical direction during the rotation, so that the hitting ball at the bottom of the second rack can periodically hit the top of the scraper, causing the top of the scraper to vibrate, so that the sand body docked on the top of the scraper is automatically vibrated and falls into the sand box, thereby improving the utilization rate of the sand body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the scraping assembly of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the present invention;

[0025] Figure 5 It is a partial schematic diagram of the scraping assembly of the present invention;

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of point A;

[0027] Figure 7 It is a schematic diagram of the structure of the hollow adjustment component of the present invention;

[0028] Figure 8 It is a schematic diagram of the scraper structure of the present invention.

[0029] The meaning of each number in the figure is:

[0030] 100, machine body; 101, hydraulic cylinder; 102, workbench; 103, pressing plate;

[0031] 200, mold; 201, sand box

[0032] 300, clamping assembly; 301, cylinder; 302, support plate; 303, rotating motor; 304, clamping plate;

[0033] 400, scraping assembly; 401, servo motor; 402, screw rod; 403, moving frame; 404, scraper; 405, toothed plate;

[0034] 500, hollow adjustment assembly; 501, edge roller; 502, main gear; 503, secondary gear; 504, eccentric wheel; 505, base plate; 506, threaded column; 507, insertion rod; 508, anchor barb; 509, return spring;

[0035] 600, striking assembly; 601, first rack; 602, rotating gear; 603, hollow column; 604, second rack; 605, elastic member; 606, striking ball. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] The purpose of this embodiment is to provide an automatic molding machine for iron mold covering sand, see Figure 1-Figure 8 As shown, it includes a machine body 100, a hydraulic cylinder 101 is provided at the bottom of the machine body 100, a workbench 102 is provided at the end of the hydraulic cylinder 101, a mold 200 is provided on the surface of the workbench 102, clamping assemblies 300 are provided on both sides of the mold 200, and the clamping assemblies 300 are used to clamp and flip the mold 200, a sand box 201 is provided on the surface of the mold 200, and a pressing plate 103 is provided on the top of the machine body 100. The end of the hydraulic cylinder 101 drives the mold 200 to move in a vertical direction so that the pressing plate 103 extrudes the sand body inside the sand box 201;

[0039] A scraping component 400 is provided on the surface of the workbench 102. The scraping component 400 is used to scrape the sand body filled into the sand box 201 so that the sand body is evenly filled therein. Hollow adjustment components 500 are provided on both sides of the scraping component 400. The hollow adjustment component 500 is used to reciprocate the sand body close to the side wall of the sand box 201 during the process of scraping the sand body inside the sand box 201 to fill the hollow position. A knocking component 600 is provided on one side of the hollow adjustment component 500. The knocking component 600 is used to remove the sand body attached to the surface of the sand box 201 during the scraping process of the scraping component 400.

[0040] The improvement of this embodiment is that the edge roller 501 rotates in contact with the side wall of the sand box 201, and the edge roller 501 drives the extension rod to make the main gear 502 rotate coaxially. The main gear 502 drives the sub-gear 503 to mesh and rotate during the rotation process. The sub-gear 503 drives the eccentric wheel 504 provided at the end of the support rod to rotate coaxially during the rotation process. The eccentric wheel 504 presses the base plate 505 provided thereunder during the rotation process, and the base plate 505 drives the threaded column 506 and the insertion rod 507 provided at the bottom thereof to move downward in the vertical direction. During the downward movement, the reset spring 509 is deformed by the pressure. When the eccentric wheel 504 stops squeezing the base plate 505 during the rotation process, the base plate 505 is reset by the force of the reset spring 509, so that the insertion rod 507 reciprocates the sand body close to the side wall of the sand box 201, so that the hollow gap can be quickly identified and the sand body can automatically fill the hollow space.

[0041] During the molding operation, in the process of pressing the sand body inside the sand box 201, in order to avoid the position deviation of the mold 200, resulting in reduced molding accuracy and affecting the subsequent processing efficiency, the clamping assembly 300 includes a cylinder 301 arranged at the bottom of the workbench 102, and the piston rod at the end of the cylinder 301 is provided with a support plate 302, and a rotating motor 303 is provided on the surface of the support plate 302. The output end of the rotating motor 303 is provided with a clamping plate 304, and the clamping plate 304 is used to clamp and fix the two sides of the mold 200. By The two sides of 200 are fixed between the clamping plates 304 to limit the mold 200. During the molding process, the mold 200 can be prevented from being displaced by pressure and the molding accuracy can be improved. At the same time, the piston rod at the end of the cylinder 301 drives the support plate 302 to move in the vertical direction, so that the output shaft at the end of the rotating motor 303 drives the clamping plate 304 to move. The rotating motor 303 is started to drive the clamping plate 304 to rotate, so that the molding surface of the mold 200 can be quickly adjusted, which is convenient for improving the molding efficiency and reducing the labor intensity of the operators.

[0042] When the operator piles the sand body inside the sand box 201, in order to improve the compaction and molding effect of the sand body, the sand body inside the sand box 201 is usually flattened so that the sand body is evenly stressed during the pressing process, thereby improving the molding effect. Therefore, the scraping assembly 400 includes a servo motor 401 arranged on one side of the surface of the workbench 102, and the output end of the servo motor 401 is provided with a screw rod 402, and the surface of the screw rod 402 is provided with a moving frame 403, and a scraper 404 is connected to the bottom of the moving frame 403 through a screw rod, and the screw is fixed at the top center of the moving frame 403 through a threaded connection, and the screw and the top of the scraper 404 are movably connected, that is, an upward force is given to the bottom of the scraper 404, and the scraper 404 can move in a small range on the surface of the screw rod for a certain distance, and through holes are opened on both sides of the surface of the scraper 404, and the two sides of the scraper 404 are set to be sloped, and the two sides of 40 are flush with the top of the sand box 201. A toothed plate 405 is provided, and the screw rod 402 is driven to rotate by the output end of the servo motor 401. The moving frame 403 provided on the surface of the screw rod 402 reciprocates in the horizontal direction. During the movement, the toothed plate 405 at the bottom of the scraper 404 flattens the uneven sand body, so that the surface of the sand body inside the sand box 201 is at the same level. In order to prevent the sand body from overflowing from both sides of the scraper 404 during the flattening process of the sand body, the two sides of the scraper 404 are set to be sloped, that is, when the scraper 404 passes through the sand body higher than the top of the sand box 201, the higher sand body slides to the other side along the slope surface, thereby preventing the sand body from overflowing from both sides of the scraper 404 to the outside, and automatically flattens the sand body stacked inside the sand box 201, so that the sand body is evenly stressed during the pressing process, thereby improving the molding effect, and at the same time reducing the overflow of the sand body during the flattening process, avoiding the contamination of the sand body, and improving the utilization rate of the sand body.

[0043] Considering that when the sand body is filled in the sand box 201, the sand body close to the side wall of the sand box 201 is supported by the side wall, which easily leads to a large hollow gap near the side wall of the sand box 201 that is not filled with the sand body, resulting in affecting the molding effect during the molding process. Therefore, the hollow adjustment component 500 includes edge rollers 501 arranged on both sides of the moving frame 403, and an extension rod is provided on the top of the edge roller 501. A main gear 502 is provided on the top of the extension rod. A sub-gear 503 is vertically meshed on one side of the main gear 502. The sub-gear 503 rotates on the surface of the support rod, and an eccentric wheel 504 is provided at the end of the support rod. A base plate 505 is provided below the eccentric wheel 504, and a threaded column 506 is provided at the bottom of the base plate 505. A plug rod 507 is threadedly connected to the bottom of the threaded column 506. A return spring 509 is provided between the base plate 505 and the scraper 404. When the scraper 404 moves back and forth horizontally to scrape the sand body, the edge roller 501 is close to the The side wall of the sand box 201 rotates, and the edge roller 501 drives the extension rod to make the main gear 502 rotate coaxially. The main gear 502 drives the sub-gear 503 to mesh and rotate during the rotation process. The sub-gear 503 drives the eccentric wheel 504 provided at the end of the support rod to rotate coaxially during the rotation process. The eccentric wheel 504 presses the base plate 505 provided thereunder during the rotation process. The base plate 505 drives the threaded column 506 and the insertion rod 507 provided at the bottom thereof to move downward in the vertical direction. During the downward movement, the return spring 509 is deformed by the pressure. When the eccentric wheel 504 stops squeezing the base plate 505 during the rotation process, the base plate 505 is reset by the force of the return spring 509, so that the insertion rod 507 reciprocates the sand body close to the side wall of the sand box 201, so that the hollow gap can be quickly identified and the sand body can automatically fill the hollow space, thereby avoiding that the larger hollow gap is not filled by the sand body, thereby ensuring the molding effect.

[0044] In order to improve the recognition efficiency of hollow gaps, anchor thorns 508 are provided on the surface of the insertion rod 507. The anchor thorns 508 are arranged in a ring shape with an opening facing upward on the surface of the insertion rod 507. The anchor thorns 508 can pass through the through holes opened on both sides of the surface of the scraper 404. When the scraper 404 is driven horizontally by the movable frame 403 to scrape the sand body inside the sand box 201, the insertion rod 507 drives the anchor thorns 508 to reciprocate in the vertical direction. Since the anchor thorns 508 are arranged in a ring shape with an opening facing upward, the anchor thorns 508 can increase the detection range of the hollow parts of the side walls of the sand box 201, reduce the pressure of the insertion of the insertion rod 507, improve the detection efficiency of the hollow gaps on the inner side walls of the sand box 201, and improve the speed of film and sand covering molding.

[0045] In the process of leveling the sand body inside the sand box 201, in order to prevent the sand body from overflowing from the two sides of the scraper 404, the two sides of the scraper 404 are set to be sloped. When the higher sand body passes through the scraper 404, part of the sand body is easy to accumulate on the top of the scraper 404, and the operator needs to sweep it so that the sand body accumulated on the top of the scraper 404 falls into the sand box 201 for molding, which is more troublesome. Therefore, the knocking assembly 600 includes a first rack 601 arranged on one side of the base plate 505, a rotating gear 602 is arranged on one side of the first rack 601, and a hollow column 603 is arranged above the side of the rotating gear 602 away from the first rack 601, and a second rack 604 is slidably arranged on the inner wall of the hollow column 603, and an elastic member 605 is arranged inside the hollow column 603, and the two ends of the elastic member 605 are respectively connected to the inner wall of the hollow column 603. The wall and the top of the second rack 604, the bottom of the second rack 604 is provided with a hitting ball 606, the surface of the hitting ball 606 is wrapped with a rubber sleeve, when the base plate 505 drives the threaded column 506 and the insertion rod 507 to reciprocate and insert the sand body close to the side wall of the sand box 201 to identify the hollow gap, the first rack 601 drives the rotating gear 602 to rotate periodically in different directions during the reciprocating movement, and the rotating gear 602 drives the second rack 604 to reciprocate in the vertical direction during the rotation, so that the hitting ball 606 at the bottom of the second rack 604 can periodically impact the top of the scraper 404, causing the top of the scraper 404 to vibrate, so that the sand body docked on the top of the scraper 404 is automatically vibrated and falls into the sand box 201, reducing the labor intensity of the operators and improving the utilization rate of the sand body.

[0046] In summary, the working principle of the present invention is as follows: when in use, the two sides of the mold 200 are fixed between the clamping plates 304 to limit the mold 200, which can prevent the mold 200 from being displaced by pressure during the molding process, thereby improving the molding accuracy. At the same time, the piston rod at the end of the cylinder 301 drives the support plate 302 to move in the vertical direction, so that the output shaft at the end of the rotating motor 303 drives the clamping plate 304 to move, and the rotating motor 303 is started to drive the clamping plate 304 to rotate, so that the molding surface of the mold 200 can be quickly adjusted, which is convenient for improving the molding efficiency, and the sand box 201 is placed on the surface of the mold 200, and the sand body is filled inside the sand box 201;

[0047] When the sand body is filled, the output end of the servo motor 401 drives the screw rod 402 to rotate, and the moving frame 403 provided on the surface of the screw rod 402 reciprocates in the horizontal direction. During the movement, the toothed plate 405 at the bottom of the scraper 404 flattens the uneven sand body, so that the surface of the sand body inside the sand box 201 is at the same level. In order to prevent the sand body from overflowing from both sides of the scraper 404 during the flattening process of the sand body, the two sides of the scraper 404 are set to be sloped, that is, when the scraper 404 passes through the sand body higher than the top of the sand box 201, the higher sand body slides to the other side along the slope surface, thereby preventing the sand body from overflowing from both sides of the scraper 404 to the outside, and automatically flattens the sand body stacked inside the sand box 201, so that the sand body is evenly stressed during the pressing process, thereby improving the molding effect, and at the same time reducing the sand body overflow during the flattening process, avoiding the sand body from being contaminated, and improving the utilization rate of the sand body;

[0048] During the horizontal reciprocating movement of the scraper 404 to scrape the sand body, the edge roller 501 rotates in contact with the side wall of the sand box 201, and the edge roller 501 drives the extension rod to make the main gear 502 rotate coaxially. During the rotation process, the main gear 502 drives the sub-gear 503 to mesh and rotate. During the rotation process, the sub-gear 503 drives the eccentric wheel 504 provided at the end of the support rod to rotate coaxially. During the rotation process, the eccentric wheel 504 presses the base plate 505 provided thereunder, and the base plate 505 drives the threaded column provided at the bottom thereof. 506 and the insertion rod 507 move downward in the vertical direction. During the downward movement, the return spring 509 is deformed by the pressure. When the eccentric wheel 504 stops squeezing the base plate 505 during rotation, the base plate 505 is reset by the force of the return spring 509, so that the insertion rod 507 reciprocates the sand body close to the side wall of the sand box 201, so that the hollow gap can be quickly identified and the sand body can automatically fill the hollow gap, avoiding large hollow gaps that are not filled with sand bodies, thereby ensuring the molding effect;

[0049] When the base plate 505 drives the threaded column 506 and the insertion rod 507 to reciprocate and insert the sand body near the side wall of the sand box 201 to identify the hollow gap, the first rack 601 drives the rotating gear 602 to rotate periodically in different directions during the reciprocating movement, and the rotating gear 602 drives the second rack 604 to reciprocate in the vertical direction during the rotation, so that the hitting ball 606 at the bottom of the second rack 604 can periodically hit the top of the scraper 404, causing the top of the scraper 404 to vibrate, so that the sand body docked on the top of the scraper 404 is automatically vibrated and falls into the sand box 201, thereby improving the utilization rate of the sand body;

[0050] After the sand body is laid flat, the scraping assembly 400 moves to one side of the workbench 102, and the pressing plate 103 is rotated to just above the workbench 102. The output end of the hydraulic cylinder 101 drives the workbench 102 to move upward in the vertical direction, so that the pressing plate 103 extrude and mold the sand body inside the sand box 201. After the molding is completed, the sand box 201 is taken out and the operation is repeated.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic molding machine for sand coating of iron molds, characterized in that: The machine body (100) comprises a hydraulic cylinder (101) at the bottom of the machine body (100), a workbench (102) at the end of the hydraulic cylinder (101), a mold (200) on the surface of the workbench (102), clamping assemblies (300) on both sides of the mold (200), the clamping assemblies (300) being used to clamp and flip the mold (200), a sand box (201) on the surface of the mold (200), a pressing plate (103) at the top of the machine body (100), and the end of the hydraulic cylinder (101) drives the mold (200) to move in a vertical direction so that the pressing plate (103) extrude and shape the sand body inside the sand box (201); The surface of the workbench (102) is provided with a scraping component (400), and the scraping component (400) is used to scrape the sand body filled into the sand box (201) so that the sand body is evenly filled therein. Hollow adjustment components (500) are provided on both sides of the scraping component (400), and the hollow adjustment component (500) is used to reciprocate and insert the sand body close to the side wall of the sand box (201) during the process of scraping the sand body inside the sand box (201) to fill the hollow position. A knocking component (600) is provided on one side of the hollow adjustment component (500), and the knocking component (600) is used to remove the sand body attached to the surface of the sand box (201) during the process of the scraping component (400) scraping the surface of the sand box (201).

2. The automatic molding machine for sand coating of iron molds according to claim 1, characterized in that: The clamping assembly (300) comprises a cylinder (301) arranged at the bottom of the workbench (102), a piston rod at the end of the cylinder (301) is provided with a support plate (302), a rotating motor (303) is provided on the surface of the support plate (302), and a clamping plate (304) is provided at the output end of the rotating motor (303), and the clamping plate (304) is used to clamp and fix the two sides of the mold (200).

3. The automatic molding machine for sand coating of iron molds according to claim 1, characterized in that: The scraping assembly (400) comprises a servo motor (401) arranged on one side of the surface of the workbench (102); a screw rod (402) is arranged at the output end of the servo motor (401); a movable frame (403) is arranged on the surface of the screw rod (402); a scraper (404) is connected to the bottom of the movable frame (403) via a screw rod; through holes are arranged on both sides of the surface of the scraper (404).

4. The automatic molding machine for sand coating of iron molds according to claim 3, characterized in that: The two sides of the scraper (404) are arranged in a slope shape, and the two sides of the scraper (404) are flush with the top of the sand box (201), and a toothed plate (405) is provided at the bottom of the scraper (404).

5. The automatic molding machine for sand coating of iron molds according to claim 3, characterized in that: The hollow adjustment assembly (500) comprises edge rollers (501) arranged on both sides of the moving frame (403); an extension rod is arranged on the top of the edge roller (501); a main gear (502) is arranged on the top of the extension rod; a sub-gear (503) is arranged vertically meshing on one side of the main gear (502); the sub-gear (503) rotates on the surface of the support rod; an eccentric wheel (504) is arranged at the end of the support rod; a base plate (505) is arranged below the eccentric wheel (504); a threaded column (506) is arranged at the bottom of the base plate (505); a plug rod (507) is threadedly connected to the bottom of the threaded column (506); a return spring (509) is arranged between the base plate (505) and the scraper (404).

6. The automatic molding machine for sand coating of iron molds according to claim 5, characterized in that: The surface of the insertion rod (507) is provided with anchor thorns (508), and the anchor thorns (508) are arranged in a circular shape with an opening facing upward on the surface of the insertion rod (507). The anchor thorns (508) can pass through the through holes opened on both sides of the surface of the scraper (404).

7. The automatic molding machine for sand coating of iron molds according to claim 1, characterized in that: The striking assembly (600) comprises a first rack (601) arranged on one side of a base plate (505); a rotating gear (602) is arranged on one side of the first rack (601); a hollow column (603) is arranged above the side of the rotating gear (602) away from the first rack (601); a second rack (604) is slidably arranged on the inner wall of the hollow column (603); a striking ball (606) is arranged at the bottom of the second rack (604); and a rubber sleeve is wrapped around the surface of the striking ball (606).

8. The automatic molding machine for sand coating of iron molds according to claim 7, characterized in that: An elastic member (605) is provided inside the hollow column (603), and two ends of the elastic member (605) are respectively connected to the inner wall of the hollow column (603) and the top of the second rack (604).

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