A quantitative sand feeding device for a core shooter

Abstract

This utility model relates to the field of core shooting machine technology and discloses a quantitative sand feeding device for a core shooting machine, including a core shooting machine, a hopper, a weighbridge, a material barrel, an auger, and a belt. The core shooting machine has an internal feed inlet. An internal rotating shaft is connected to the transfer box. A motor is fixedly connected to the outside of the core shooting machine. A material pipe is fixedly connected to the bottom of the hopper. This utility model has the following advantages and effects: When the weight display on the digital screen is zeroed, the worker opens the valve, and the sand flows through the material pipe into the material barrel. When the weight display on the digital screen shows that the specified weight has been reached, the worker closes the valve and then inserts one end of a flexible hose into the material barrel. Driven by the motor, the rotating auger contacts the pre-quantified sand in the material barrel, lifting the sand. This process feeds the pre-quantified sand into the material barrel.

Description

Technical Field

[0001] This utility model relates to the field of core shooting machine technology, and in particular to a quantitative sand feeding device for a core shooting machine. Background Technology

[0002] Core shooting machines are widely used in the foundry industry, especially in the production of various sand cores, where they demonstrate high efficiency and precision. They are suitable for the production of complex molds and play an important role in the casting of automotive parts and other products.

[0003] In the prior art, Chinese Patent Publication No. CN221069995U discloses an automatic feeding and clamping device for a core shooter, including a displacement box. A lead screw is inserted through both ends of the displacement box. A sleeve is threaded onto the outside of the lead screw. A transmission belt is sleeved onto the outside of the sleeve through a groove. A driven pulley is sleeved at the bottom end of the transmission belt. A bidirectional screw is inserted into the inside of the driven pulley through a connecting key. Both ends of the bidirectional screw are inserted into the displacement box through sleeved rolling bearings. Both ends of the bidirectional screw are threaded onto connecting plates. The bottom ends of both connecting plates extend through a sliding groove at the bottom of the displacement box. Feeding clamps are welded to the bottom ends of both connecting plates. Fixed sleeves are welded to the bottom ends of both ends of the displacement box. This utility model has the following advantages and effects: by cooperating with the lead screw and the bidirectional screw, it achieves the purpose of controlling the two feeding clamps to hold the sand material and move it parallel to the feeding port of the core shooter, effectively improving the synchronous feeding efficiency.

[0004] In actual production and use, although this type of automatic feeding and clamping device for core shooting machines can also feed materials into the feeding port of the core shooting machine, it does not have a quantitative feeding device. This results in the inability to quantitatively feed materials into the feeding port of the core shooting machine, which may prevent the core shooting machine from carrying out subsequent production according to the preset production plan. As a result, the use effect of this type of equipment is not good, so it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a quantitative sand feeding device for a core shooter, which has a good quantitative feeding effect inside the feed inlet of the core shooter.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quantitative sand feeding device for a core shooter, comprising a core shooter, a hopper, a weighbridge, a material barrel, an auger, and a belt. The core shooter has an inlet inside. A transfer box is fixedly connected to the upper surface of the core shooter. A discharge hole is opened at the bottom of the transfer box. A tail shaft is rotatably connected inside the transfer box. A rotating hole is opened inside the transfer box. One end of the tail shaft passes through the rotating hole. A motor is fixedly connected to the outside of the core shooter. One end of the belt is driven by the output end of the motor. The other end of the belt is driven by one end of the tail shaft. The other end of the tail shaft is fixedly connected to the auger. A flexible hose is fixedly connected to the outside of the transfer box. The auger passes through the inside of the flexible hose. A bracket is fixedly connected to the bottom of the hopper. A digital display screen is fixedly connected to the upper surface of the weighbridge. A material pipe is fixedly connected to the bottom of the hopper. A valve is rotatably connected to the outside of the material pipe. A mold is provided outside the core shooter.

[0007] By adopting the above technical solution, after the worker places the material bucket on the upper surface of the weighbridge, they press the tare button to zero the weight display on the digital screen, preventing the weight of the material bucket from affecting the final weight displayed on the weighbridge. Next, the worker opens the valve, allowing the sand in the hopper to flow through the feed pipe into the material bucket, causing the weight display on the digital screen to continuously increase. When the sand in the bucket is close to the production-specified weight, the worker closes the valve, reducing the amount of sand flowing out of the feed pipe and allowing the weight in the bucket to slowly increase. Once the weight display on the digital screen shows the specified weight, the worker closes the valve and then inserts one end of the flexible hose into the material bucket. Inside the barrel, the motor is then turned on. The motor's output drives the belt to rotate, which in turn drives the tail shaft to rotate. The tail shaft then drives the auger to rotate inside the hose. The rotating auger contacts the pre-measured amount of sand in the barrel, lifting the sand and transporting it to the transfer box. After the sand in the barrel is lifted, it falls through the discharge hole into the feed inlet. Once the pre-measured amount of sand in the barrel has been lifted, the motor is turned off, and the hose is removed from the barrel. By performing the above operations, sand is added to the feed inlet of the core shooter according to the weight of the pre-measured amount of sand in the barrel. This allows for precise sand addition according to production requirements, achieving optimal quantitative feeding results at the feed inlet of the core shooter.

[0008] A further feature of this invention is that a pipe clamp is fixedly connected to the outside of the core shooting machine, and the flexible tube extends through the inside of the pipe clamp.

[0009] By adopting the above technical solution, the hose will vibrate during material extraction, and the hose clamp will limit its movement.

[0010] A further feature of this invention is that a glass cover is fixedly connected to the upper surface of the core shooting machine, and a square hole is opened inside the glass cover, with the transfer box penetrating into the inside of the square hole.

[0011] By adopting the above technical solution, when the sand falls from the discharge hole of the transfer box into the feed inlet inside the core shooter, dust will be generated, and the glass cover will prevent the dust from drifting out.

[0012] A further feature of this invention is that the hose is externally fixedly connected with two handles.

[0013] By adopting the above technical solution, workers pull the handle to insert the hose into the material bucket to extract the material.

[0014] A further feature of this invention is that the hose is externally fixedly connected with two clamps.

[0015] By adopting the above technical solution, when pumping sand from the bucket through the hose, clamps are used to hold the bucket wall to prevent the hose from shaking.

[0016] A further feature of this invention is that the tail shaft is externally threaded with a bolt, which engages with the auger.

[0017] By adopting the above technical solution, the workers tighten the bolts to press the auger together, which makes it easier for the tail shaft to drive the auger to rotate together.

[0018] A further feature of this invention is that a cylinder is fixedly connected inside the feed inlet, a tamping rod is provided inside the feed inlet, and the output end of the cylinder is fixedly connected to the tamping rod.

[0019] By adopting the above technical solution, the worker starts the cylinder, and the output end of the cylinder drives the tamping rod to move. The moving tamping rod contacts the bottom of the feed inlet, preventing the sand from accumulating in the feed inlet and not flowing downward.

[0020] A further feature of this invention is that a friction layer is fixedly connected to the upper surface of the weighbridge, and the thickness of the friction layer is two centimeters.

[0021] By adopting the above technical solution, the two-centimeter friction layer increases the friction generated when the material bucket contacts the upper surface of the weighbridge, preventing the material bucket from slipping.

[0022] A further feature of this invention is that the weighbridge has two handles inside.

[0023] By adopting the above technical solution, before weighing the material bucket, the worker can reach into the handle to move the weighbridge to the appropriate position.

[0024] A further feature of this invention is that the weighbridge has four wheels at its bottom.

[0025] By adopting the above technical solution, the four wheels enable the weighbridge to move quickly to the designated position after being subjected to force.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the coordinated arrangement of a core shooter, hopper, weighbridge, material barrel, auger, belt, feed inlet, transfer box, discharge hole, tail shaft, rotating hole, motor, hose, bracket, digital display screen, material pipe, valve, and mold, enables the device to be used by placing the material barrel on the upper surface of the weighbridge, pressing the tare button to zero the weight display on the digital screen, opening the valve, and allowing the sand to flow into the material barrel through the material pipe, causing the weight display on the digital screen to continuously increase. When the weight display reaches the specified weight, the worker closes the valve, inserts one end of the hose into the material barrel, and then, driven by the motor, the tail shaft rotates the auger inside the hose. The rotating auger contacts the measured amount of sand in the material barrel, lifting the sand. The lifted sand falls through the discharge hole into the feed inlet, thus feeding the measured amount of sand into the material barrel.

[0028] 2. This utility model, through the coordinated arrangement of pipe clamps, a glass cover, a square hole, a handle, a clamp, bolts, a cylinder, a tamping rod, a friction layer, a buckle, and wheels, enables the hose to vibrate during material extraction. The pipe clamp limits its movement, and when sand falls from the discharge port of the transfer box into the feed inlet inside the core shooter, dust is generated. The glass cover prevents the dust from escaping. The worker pulls the handle to insert the hose into the material bucket for extraction. While extracting sand from the bucket through the hose, the clamp holds the bucket wall. To prevent the hose from shaking, the worker tightens the bolts to press the auger, making it easier for the tail shaft to drive the auger to rotate. The worker then starts the cylinder, and the output end of the cylinder drives the tamping roller to move. The moving tamping roller contacts the bottom of the feed inlet to prevent sand from accumulating in the feed inlet and not flowing down. The two-centimeter friction layer increases the friction between the material bucket and the upper surface of the weighbridge, preventing the material bucket from slipping. Before weighing the material bucket, the worker puts their hand into the handle to move the weighbridge to the appropriate position. The four wheels enable the weighbridge to move quickly to the designated position after being stressed. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the auger and cylinder structure of this utility model;

[0032] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0033] Figure 4 This utility model Figure 1 A magnified structural diagram at point B in the middle.

[0034] In the diagram, 1. Core shooter; 2. Hopper; 3. Weighbridge; 4. Material barrel; 5. Screwdriver; 6. Feed inlet; 7. Transfer box; 8. Discharge hole; 9. Tail shaft; 10. Rotary hole; 11. Motor; 12. Belt; 13. Hose; 14. Bracket; 15. Digital display screen; 16. Material pipe; 17. Valve; 18. Mold; 19. Pipe clamp; 20. Glass cover; 21. Square hole; 22. Handle; 23. Clamp; 24. Bolt; 25. Cylinder; 26. Pounding roller; 27. Friction layer; 28. Handle; 29. ​​Wheel. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] A quantitative sand feeding device for a core shooter includes the following embodiments:

[0037] Example 1:

[0038] Reference Figure 1-4A quantitative sand feeding device for a core shooter includes a core shooter 1, a hopper 2, a weighbridge 3, a material barrel 4, an auger 5, and a belt 12. The core shooter 1 has an inlet 6 inside. A transfer box 7 is fixedly connected to the upper surface of the core shooter 1. An outlet hole 8 is opened at the bottom of the transfer box 7. A tail shaft 9 is rotatably connected inside the transfer box 7. A rotating hole 10 is opened inside the transfer box 7, and one end of the tail shaft 9 passes through the rotating hole 10. A motor 11 is fixedly connected to the outside of the core shooter 1. One end of the belt 12... The output end of the belt 12 is connected to the output end of the motor 11. The other end of the belt 12 is connected to one end of the tail shaft 9. The other end of the tail shaft 9 is fixedly connected to the auger 5. The outside of the transfer box 7 is fixedly connected to the hose 13. The auger 5 passes through the inside of the hose 13. The bottom of the hopper 2 is fixedly connected to the bracket 14. The upper surface of the weighbridge 3 is fixedly connected to the digital display screen 15. The bottom of the hopper 2 is fixedly connected to the material pipe 16. The outside of the material pipe 16 is rotatably connected to the valve 17. The outside of the core shooting machine 1 is equipped with a mold 18.

[0039] After the worker places the material bucket 4 on the upper surface of the weighbridge 3, he presses the tare button to zero the weight display bar on the digital display screen 15. Then, the worker opens the valve 17, and the sand flows into the inside of the material bucket 4 through the material pipe 16, causing the value of the weight display bar on the digital display screen 15 to increase continuously. When the weight display bar on the digital display screen 15 shows that the specified weight value has been reached, the worker closes the valve 17, then inserts one end of the hose 13 into the inside of the material bucket 4, and then turns on the motor 11 to make the tail shaft 9 drive the auger 5 to rotate inside the hose 13. The rotating auger 5 contacts the measured amount of sand in the material bucket 4, driving the sand to be lifted. The lifted sand falls into the inside of the inlet 6 through the outlet hole 8. In this way, the measured amount of sand in the material bucket 4 is fed.

[0040] Example 2:

[0041] Reference Figure 1-3 The core shooting machine 1 is externally fixedly connected to a pipe clamp 19, and a flexible hose 13 passes through the inside of the pipe clamp 19. A glass cover 20 is fixedly connected to the upper surface of the core shooting machine 1. A square hole 21 is opened inside the glass cover 20, and a transfer box 7 passes through the inside of the square hole 21.

[0042] The hose 13 will vibrate when pumping material, and the hose clamp 19 limits its movement. The glass cover 20 prevents dust from drifting out.

[0043] Example 3:

[0044] Reference Figure 4 The hose 13 is externally fixedly connected with two handles 22 and two clips 23.

[0045] The worker pulls the handle 22 to insert the hose 13 into the material bucket 4 to extract the material. When extracting the sand material in the material bucket 4 through the hose 13, the clamp 23 is used to clamp the bucket wall of the material bucket 4 to prevent the hose 13 from shaking.

[0046] Example 4:

[0047] Reference Figure 1-3 The tail shaft 9 is externally threaded with bolts 24, which are engaged with the auger 5. The feed inlet 6 is internally fixedly connected with a cylinder 25, and a tamping roller 26 is installed inside the feed inlet 6. The output end of the cylinder 25 is fixedly connected to the tamping roller 26. The upper surface of the weighbridge 3 is fixedly connected with a friction layer 27, which is two centimeters thick. The weighbridge 3 is internally provided with two handles 28. The bottom of the weighbridge 3 is provided with four wheels 29.

[0048] The worker tightens bolt 24, pressing it against auger 5, so that the tail shaft 9 can drive auger 5 to rotate together. The worker starts cylinder 25, and the output end of cylinder 25 drives tamping roller 26 to move. The moving tamping roller 26 contacts the bottom of feed inlet 6 to prevent sand from accumulating in feed inlet 6 and not flowing down. The two-centimeter friction layer 27 increases the friction generated by the contact between the material bucket 4 and the upper surface of the weighbridge 3, preventing the material bucket 4 from slipping. Before weighing the material bucket 4, the worker puts his hand into the handle 28 to move the weighbridge 3 to the appropriate position. The four wheels 29 make the weighbridge 3 move quickly to the designated position after being stressed.

[0049] In this invention, after the worker places the material bucket 4 on the upper surface of the weighbridge 3, they press the tare button to zero the weight display on the digital display screen 15, preventing the weight of the material bucket 4 from affecting the final value displayed on the weighbridge 3. Next, the worker opens valve 17, allowing the sand in the hopper 2 to flow through the feed pipe 16 into the material bucket 4, causing the weight display on the digital display screen 15 to continuously increase. When the sand in the material bucket 4 is close to the production-specified weight, the worker closes valve 17, reducing the amount of sand flowing out of the feed pipe 16, allowing the weight of the sand in the material bucket 4 to slowly increase. When the weight display on the digital display screen 15 reaches the specified weight... After the specified weight is reached, the worker closes valve 17, then inserts one end of hose 13 into the material bucket 4 and turns on motor 11. The output of motor 11 drives belt 12 to rotate, which in turn drives tail shaft 9 to rotate. Tail shaft 9 then drives auger 5 to rotate inside hose 13. The rotating auger 5 contacts the measured amount of sand in the material bucket 4, lifting the sand and transporting it to transfer box 7. After passing through discharge port 8, the sand falls into inlet 6. Once the measured amount of sand in the material bucket 4 has been lifted, motor 11 is turned off, and hose 13 is removed from the material bucket 4. This process is repeated for core firing. When feeding sand into the feed inlet 6 of machine 1, the sand is fed according to the weight of the pre-quantified sand in the feed hopper 4. This allows for quantitative feeding according to production requirements, achieving optimal quantitative feeding results within the feed inlet of the core shooter. The flexible hose 13 vibrates during material extraction, and the hose clamp 19 limits its movement. When sand falls from the discharge hole 8 of the transfer box 7 into the feed inlet 6 inside the core shooter 1, dust is generated. The glass cover 20 prevents the dust from escaping. The worker holds the handle 22, inserting the flexible hose 13 into the feed hopper 4 for extraction. While extracting sand from the feed hopper 4 through the flexible hose 13, the clamp 23 holds the wall of the feed hopper 4 to prevent... The worker tightens the bolt 24 as the hose 13 vibrates, pressing the bolt 24 against the auger 5 so that the tail shaft 9 can drive the auger 5 to rotate together. The worker starts the cylinder 25, and the output end of the cylinder 25 drives the tamping roller 26 to move. The moving tamping roller 26 contacts the bottom of the feed inlet 6 to prevent the sand from accumulating in the feed inlet 6 and not flowing down. The two-centimeter friction layer 27 increases the friction generated by the contact between the material bucket 4 and the upper surface of the weighbridge 3, preventing the material bucket 4 from slipping. Before weighing the material bucket 4, the worker puts his hand into the handle 28 to move the weighbridge 3 to the appropriate position. The four wheels 29 make the weighbridge 3 move quickly to the designated position after being stressed.

[0050] 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 quantitative sand feeding device for a core shooter, comprising a core shooter (1), a hopper (2), a weighbridge (3), a material barrel (4), an auger (5), and a belt (12), characterized in that: The core shooter (1) has an inlet (6) inside. A transfer box (7) is fixedly connected to the upper surface of the core shooter (1). A discharge hole (8) is opened at the bottom of the transfer box (7). A tail shaft (9) is rotatably connected inside the transfer box (7). A rotating hole (10) is opened inside the transfer box (7). One end of the tail shaft (9) passes through the rotating hole (10). A motor (11) is fixedly connected to the outside of the core shooter (1). One end of the belt (12) is connected to the output end of the motor (11). The other end of the belt (12) is connected to the output end of the motor (11). One end is connected to the tail shaft (9) for transmission, and the other end of the tail shaft (9) is fixedly connected to the auger (5). The transfer box (7) is fixedly connected to the outside of the hose (13). The auger (5) passes through the inside of the hose (13). The bottom of the hopper (2) is fixedly connected to the bracket (14). The upper surface of the weighbridge (3) is fixedly connected to the digital display screen (15). The bottom of the hopper (2) is fixedly connected to the material pipe (16). The outside of the material pipe (16) is rotatably connected to the valve (17). The outside of the core shooting machine (1) is provided with a mold (18).

2. The quantitative sand feeding device for a core shooter according to claim 1, characterized in that: The core shooting machine (1) is externally fixedly connected to a pipe clamp (19), and the flexible hose (13) extends into the interior of the pipe clamp (19).

3. The quantitative sand feeding device for a core shooter according to claim 1, characterized in that: A glass cover (20) is fixedly connected to the upper surface of the core shooting machine (1). A square hole (21) is opened inside the glass cover (20), and the transfer box (7) passes through the inside of the square hole (21).

4. The quantitative sand feeding device for a core shooter according to claim 1, characterized in that: The hose (13) is externally fixedly connected with a handle (22), and there are two handles (22).

5. A quantitative sand feeding device for a core shooter according to claim 1, characterized in that: The hose (13) is externally fixedly connected with a clamp (23), and there are two clamps (23).

6. A quantitative sand feeding device for a core shooter according to claim 1, characterized in that: The tail shaft (9) is externally threaded with a bolt (24), which engages with the auger (5).

7. A quantitative sand feeding device for a core shooter according to claim 1, characterized in that: A cylinder (25) is fixedly connected inside the feed inlet (6), and a tamping rod (26) is provided inside the feed inlet (6). The output end of the cylinder (25) is fixedly connected to the tamping rod (26).

8. A quantitative sand feeding device for a core shooter according to claim 1, characterized in that: The upper surface of the weighbridge (3) is fixedly connected with a friction layer (27), the friction layer (27) having a thickness of two centimeters.

9. A quantitative sand feeding device for a core shooter according to claim 1, characterized in that: The weighbridge (3) has two handles (28) inside.

10. A quantitative sand feeding device for a core shooter according to claim 1, characterized in that: The weighbridge (3) is equipped with four wheels (29) at its bottom.

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