Sand adding device of molding machine

Abstract

The utility model relates to the technical field of molding machine sand adding, and discloses a molding machine sand adding device which comprises a shell. The quantitative assembly is arranged in the shell and is used for quantitatively adding sand into the molding machine; the material cleaning assembly is arranged on the quantifying assembly, and an adjusting assembly is arranged on the material cleaning assembly; the piston rod of the air cylinder extends to drive the moving rod to move in the hollow rotating shaft, so that one end of the connecting rod is pushed to move through the U-shaped seat, the quantitative block moves in the quantitative groove, residual materials in the quantitative groove are removed, and the quantitative feeding accuracy is guaranteed; the limiting nut is rotated in the forward direction through a tool to drive the limiting sleeve to move on the outer side of the threaded column, so that the reset length of the piston rod of the air cylinder is adjusted, and the capacity of the quantitative groove is adjusted; and quantitative adjustment can be completed, and removal of excess materials in the quantitative groove cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of sand adding for molding machines, and specifically relates to a sand adding device for a molding machine. Background Technique

[0002] A molding machine is a common casting mechanical device, and its function is to manufacture sand molds. Molding machines can be divided into compaction type, jolting type, jolt-compaction type, injection-compaction type molding machines and sand slingers according to the method of compacting molding sand. The sand adding device adds sand to the molding machine to ensure its normal operation. However, the existing sand adding devices have problems such as difficult control of the sand material feeding amount and non-adjustable single feeding amount.

[0003] In the patent with the authorization publication number of CN218050211U, a sand adding device for a molding machine is disclosed, which quantitatively adds sand through a quantitative bin; at the same time, the capacity of the quantitative bin can be adjusted, solving the problems such as difficult control of the sand material feeding amount and non-adjustable single feeding amount.

[0004] The above-mentioned prior art solutions have the following defects: Although the above patent can quantitatively add sand to the molding machine and adjust the capacity of the quantitative bin, since the quantitative bin removes the surplus material in a rotating manner, the material in the quantitative bin will be extruded. When the sand material is exported from the quantitative bin under the action of its own gravity, there will be residual sand material adhering to the inside of the quantitative bin, thus affecting the accuracy of quantitative sand adding for the molding machine. Therefore, a sand adding device for a molding machine is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sand adding device for a molding machine to solve the problem that due to the quantitative bin removing the surplus material in a rotating manner, the material in the quantitative bin will be extruded, and when the sand material is exported from the quantitative bin under the action of its own gravity, there will be residual sand material adhering to the inside of the quantitative bin, thus affecting the accuracy of quantitative sand adding for the molding machine as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sand adding device for a molding machine, comprising

[0007] A housing;

[0008] A quantitative component, which is arranged inside the housing and is used for quantitatively adding sand to the molding machine;

[0009] A material cleaning component, which is arranged on the quantitative component, and an adjusting component is arranged on the material cleaning component;

[0010] The metering component includes a hollow rotating shaft, a turntable and a cavity. The hollow rotating shaft is rotatably connected to the inside of the housing. The turntable is fixedly sleeved on the outside of the hollow rotating shaft. The cavity is arranged inside the turntable. Two metering grooves are formed on the outside of the turntable. The metering grooves communicate with the cavity. A metering block is slidably connected to the inside of the metering groove.

[0011] Preferably, the cleaning component includes a moving rod, a U-shaped seat, a connecting rod and a threaded post. One end of the moving rod is movably inserted into one end of the hollow rotating shaft. Two long through grooves are formed on the outside of the hollow rotating shaft. The U-shaped seat is fixedly connected to the outside of the moving rod and is located inside the long through groove. One end of the connecting rod is hinged to the U-shaped seat. The other end of the connecting rod is hinged to one end of the metering block. The threaded post is fixedly connected to the other end of the moving rod. One end of the threaded post is installed with the piston rod of a cylinder. A support component is arranged on one side of the housing.

[0012] Preferably, the support component includes a fixed frame and an air slide ring. The fixed frame is fixedly connected to one side of the housing. The air slide ring is installed at one end of the cylinder. The fixed frame is fixedly connected to the outside of the air slide ring.

[0013] Preferably, the adjusting component includes a limit nut and a limit sleeve. The limit nut is threadedly connected to the outside of the threaded post. The limit sleeve is movably sleeved on the outside of the threaded post. One end of the limit sleeve is rotatably connected to one side of the limit nut.

[0014] Preferably, a servo motor is installed on the other side of the housing. The output shaft of the servo motor is fixedly connected to the other end of the hollow rotating shaft.

[0015] Preferably, material inlets are arranged on both the upper and lower sides of the housing. A feeding hopper is installed above one of the material inlets on the outside of the housing. A discharge tube is installed below the other material inlet on the outside of the housing.

[0016] Preferably, two long sliding grooves are formed on the outside of the moving rod. Two sliding blocks are fixedly connected to the inner end of the hollow rotating shaft. The two sliding blocks are respectively slidably connected to the inside of the two long sliding grooves.

[0017] Compared with the prior art, the present utility model adopting the above technical solutions has the following technical effects:

[0018] In the utility model, the piston rod of the air cylinder extends to drive the moving rod to move inside the hollow rotating shaft, thereby pushing one end of the connecting rod through the U-shaped seat, enabling the quantitative block to move inside the quantitative groove, so as to remove the remaining material left in the quantitative groove and ensure the accuracy of quantitative feeding; after the material cleaning is completed, the piston rod of the air cylinder resets, thereby driving the two quantitative blocks to reset, facilitating the cyclic quantitative feeding of the molding machine.

[0019] In the utility model, the positive rotation of the tool drives the limit sleeve to move outside the threaded column, thereby adjusting the reset length of the piston rod of the air cylinder to adjust the capacity of the quantitative groove. When the piston rod of the air cylinder resets, the limit sleeve will be taken out at one end of the air cylinder, and the quantitative adjustment can be completed without affecting the removal of the remaining material inside the quantitative groove. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the utility model;

[0022] Figure 2 It is a left-view structural diagram of the utility model;

[0023] Figure 3 It is a bottom structural diagram of the utility model;

[0024] Figure 4 It is a sectional structural diagram of the housing of the utility model;

[0025] Figure 5 It is of the utility model Figure 4 The enlarged structural diagram of area A.

[0026] Explanation of the reference numerals in the drawings: 1. Housing; 2. Hollow rotating shaft; 3. Turntable; 4. Cavity; 5. Quantitative groove; 6. Moving rod; 7. Long through groove; 8. U-shaped seat; 9. Connecting rod; 10. Quantitative block; 11. Fixed frame; 12. Air slide ring; 13. Air cylinder; 14. Threaded column; 15. Limit nut; 16. Limit sleeve; 17. Long sliding groove; 18. Slide block; 19. Servo motor; 20. Material inlet; 21. Feeding hopper; 22. Discharge cylinder. Detailed Embodiment

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions that can be implemented in this application. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application. Embodiment

[0029] In the prior art, since the residual material is removed by rotating the metering bin, the materials in the metering bin will be extruded. When the sand material is exported from the metering bin under the action of its own gravity, there will be residual sand material adhering to the inside of the metering bin, thus affecting the accuracy of the quantitative sand addition of the molding machine.

[0030] Please refer to Figures 1-5 , the present utility model provides a technical solution: a sand addition device for a molding machine, including a housing 1; a metering assembly, which is arranged inside the housing 1 and is used for quantitative sand addition of the molding machine; a material cleaning assembly, which is arranged on the metering assembly, and an adjustment assembly is arranged on the material cleaning assembly;

[0031] By setting up a metering component, the metering and sand adding of the molding machine can be completed. The metering component includes a hollow rotating shaft 2, a turntable 3, and a cavity 4. The hollow rotating shaft 2 is rotatably connected to the inside of the housing 1. The turntable 3 is fixedly sleeved on the outside of the hollow rotating shaft 2. The cavity 4 is arranged inside the turntable 3. Two metering grooves 5 are formed on the outside of the turntable 3. The metering grooves 5 communicate with the cavity 4. A metering block 10 is slidably connected to the inside of the metering groove 5. A servo motor 19 is installed on the other side of the housing 1. The output shaft of the servo motor 19 is fixedly connected to the other end of the hollow rotating shaft 2. Feeding ports 20 are arranged on both the upper and lower sides of the housing 1. A feeding hopper 21 is installed above one of the feeding ports 20 on the outside of the housing 1. A discharge cylinder 22 is installed below the other feeding port 20 on the outside of the housing 1. When sand needs to be added to the molding machine, the sand in the feeding hopper 21 falls into the inside of the metering groove 5 through one of the feeding ports 20 and is located above the metering block 10. Then, the servo motor 19 is started by controlling through the switch group. The output shaft of the servo motor 19 drives the hollow rotating shaft 2 to rotate, and the hollow rotating shaft 2 can drive the turntable 3 to rotate 180 degrees, so as to move the sand in the metering groove 5 to the other feeding port 20, achieving the effect of metering and sand adding for the molding machine.

[0032] By setting up a cleaning component, the residual material in the metering groove 5 can be removed to ensure the accuracy of metering and feeding. The cleaning component includes a moving rod 6, a U-shaped seat 8, a connecting rod 9, and a threaded column 14. One end of the moving rod 6 is movably inserted into one end of the hollow rotating shaft 2. Two long through grooves 7 are formed on the outside of the hollow rotating shaft 2. The U-shaped seat 8 is fixedly connected to the outside of the moving rod 6 and is located inside the long through groove 7. One end of the connecting rod 9 is hinged to the U-shaped seat 8. The other end of the connecting rod 9 is hinged to one end of the metering block 10. The threaded column 14 is fixedly connected to the other end of the moving rod 6. The piston rod of a cylinder 13 is installed at one end of the threaded column 14. A support component is arranged on one side of the housing 1. When the sand is discharged from the inside of the housing 1 through the discharge cylinder 22, in order to prevent the sand from being squeezed when the turntable 3 rotates to remove the residual material, resulting in residual sand in the metering groove 5 and affecting the processing accuracy of the molding machine, the solenoid valve of the cylinder 13 is started by controlling through the switch group. The piston rod of the cylinder 13 extends to drive the moving rod 6 to move inside the hollow rotating shaft 2, so as to push one end of the connecting rod 9 to move through the U-shaped seat 8, causing the metering block 10 to move inside the metering groove 5, and being able to remove the residual material inside the metering groove 5.

[0033] To ensure the normal use of the cylinder 13, the support assembly includes a fixed frame 11 and a pneumatic slip ring 12. The fixed frame 11 is fixedly connected to one side of the housing 1. The pneumatic slip ring 12 is installed at one end of the cylinder 13, and the fixed frame 11 is fixedly connected to the outside of the pneumatic slip ring 12. During the rotation of the turntable 3, the hollow rotating shaft 2 drives the cylinder 13 to rotate on the pneumatic slip ring 12 through the threaded column 14. Through the setting of the pneumatic slip ring 12, the air supply pipe of the cylinder 13 can be prevented from being entangled. After the material cleaning is completed, the piston rod of the cylinder 13 is reset, thereby driving the two metering blocks 10 to reset, facilitating the cyclic metering and feeding of the molding machine.

[0034] By setting the adjustment assembly, the metering of the metering groove 5 can be adjusted without affecting the removal of the remaining material inside the metering groove 5. The adjustment assembly includes a limit nut 15 and a limit sleeve 16. The limit nut 15 is threadedly connected to the outside of the threaded column 14, and the limit sleeve 16 is movably sleeved on the outside of the threaded column 14. One end of the limit sleeve 16 is rotatably connected to one side of the limit nut 15. Two long sliding grooves 17 are formed on the outside of the moving rod 6, and two sliding blocks 18 are fixedly connected to the inner end of the hollow rotating shaft 2. The two sliding blocks 18 are respectively slidably connected to the inside of the two long sliding grooves 17. When the sand addition amount needs to be adjusted, the piston rod of the cylinder 13 extends, and then the limit nut 15 is rotated forward by a tool. The limit nut 15 drives the limit sleeve 16 to move on the outside of the threaded column 14, thereby adjusting the reset length of the piston rod of the cylinder 13 to adjust the capacity of the metering groove 5.

[0035] Regarding the working principle or structural principle, when the molding machine needs to be sanded, the sand material in the hopper 21 falls into the metering groove 5 through a material port 20 and is located above the metering block 10. Then, the servo motor 19 is started by controlling the switch group. The output shaft of the servo motor 19 drives the hollow rotating shaft 2 to rotate, and the hollow rotating shaft 2 can drive the turntable 3 to rotate 180 degrees, thereby moving the sand material in the metering groove 5 to another material port 20, achieving the effect of metering sand addition for the molding machine. During the rotation of the turntable 3, the hollow rotating shaft 2 drives the cylinder 13 to rotate on the pneumatic slip ring 12 through the threaded column 14. Through the setting of the pneumatic slip ring 12, the air supply pipe of the cylinder 13 can be prevented from being entangled;

[0036] When the abrasive is discharged from the interior of the housing 1 through the discharge cylinder 22, in order to prevent the abrasive from being squeezed when the turntable 3 rotates to remove the remaining material, resulting in residual abrasive in the metering groove 5 and affecting the processing accuracy of the molding machine, the solenoid valve of the cylinder 13 is started by controlling through the switch group. The piston rod of the cylinder 13 extends to drive the moving rod 6 to move inside the hollow rotating shaft 2, thereby pushing one end of the connecting rod 9 through the U-shaped seat 8, causing the metering block 10 to move inside the metering groove 5, so as to remove the remaining material remaining inside the metering groove 5 and ensure the accuracy of metering feeding; after the material cleaning is completed, the piston rod of the cylinder 13 is reset, thereby driving the two metering blocks 10 to reset, facilitating the cyclic metering feeding of the molding machine; when it is necessary to adjust the sand feeding amount, the piston rod of the cylinder 13 extends, and then the limit nut 15 is rotated forward by a tool. The limit nut 15 drives the limit sleeve 16 to move outside the threaded column 14, thereby adjusting the reset length of the piston rod of the cylinder 13 to adjust the capacity of the metering groove 5. When the piston rod of the cylinder 13 is reset, the limit sleeve 16 will be taken out at one end of the cylinder 13, and the adjustment of the metering can be completed without affecting the removal of the remaining material inside the metering groove 5.

[0037] Those skilled in the art can understand that the features recited in the various embodiments and / or claims of the present invention can be combined or / and combined in various ways, even if such combinations or combinations are not explicitly recited in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features recited in the various embodiments and / or claims of the present invention can be combined and / or combined in various ways. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A sand adding device for a molding machine, characterized in that: including a housing (1); a metering component disposed inside the housing (1) and used for metering and adding sand to a molding machine; a material cleaning component disposed on the metering component, and an adjusting component is arranged on the material cleaning component; The metering component includes a hollow rotating shaft (2), a turntable (3) and a cavity (4). The hollow rotating shaft (2) is rotatably connected inside the housing (1). The turntable (3) is fixedly sleeved outside the hollow rotating shaft (2). The cavity (4) is disposed inside the turntable (3). Two metering grooves (5) are formed on the outside of the turntable (3). The metering grooves (5) communicate with the cavity (4). A metering block (10) is slidably connected inside the metering groove (5).

2. The sand adding device for a molding machine according to claim 1, characterized in that: The material cleaning component includes a moving rod (6), a U-shaped seat (8), a connecting rod (9) and a threaded column (14). One end of the moving rod (6) is movably inserted into one end of the hollow rotating shaft (2). Two long through grooves (7) are formed on the outside of the hollow rotating shaft (2). The U-shaped seat (8) is fixedly connected to the outside of the moving rod (6) and located inside the long through groove (7). One end of the connecting rod (9) is hinged to the U-shaped seat (8). The other end of the connecting rod (9) is hinged to one end of the metering block (10). The threaded column (14) is fixedly connected to the other end of the moving rod (6). One end of the threaded column (14) is equipped with a piston rod of a cylinder (13). A support component is arranged on one side of the housing (1).

3. The sand adding device for a molding machine according to claim 2, characterized in that: The support component includes a fixed frame (11) and an air slide ring (12). The fixed frame (11) is fixedly connected to one side of the housing (1). The air slide ring (12) is installed at one end of the cylinder (13). The fixed frame (11) is fixedly connected to the outside of the air slide ring (12).

4. The sand adding device for a molding machine according to claim 2, characterized in that: The adjusting component includes a limit nut (15) and a limit sleeve (16). The limit nut (15) is threadedly connected to the outside of the threaded column (14). The limit sleeve (16) is movably sleeved on the outside of the threaded column (14). One end of the limit sleeve (16) is rotatably connected to one side of the limit nut (15).

5. The sand adding device for a molding machine according to claim 1, wherein: A servo motor (19) is installed on the other side of the housing (1). The output shaft of the servo motor (19) is fixedly connected to the other end of the hollow rotating shaft (2).

6. The sand adding device for a molding machine according to claim 1, characterized in that: Feeding ports (20) are arranged on both the upper and lower sides of the housing (1). A feeding hopper (21) is installed above one of the feeding ports (20) on the outside of the housing (1). A discharge cylinder (22) is installed below the other feeding port (20) on the outside of the housing (1).

7. The sand adding device for a molding machine according to claim 2, wherein: Two long sliding grooves (17) are formed on the outside of the moving rod (6). Two sliders (18) are fixedly connected to the inner end of the hollow rotating shaft (2). The two sliders (18) are respectively slidably connected inside the two long sliding grooves (17).

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