Sand supply device of core shooter

Abstract

The invention relates to the technical field of core shooter sand supply, and discloses a core shooter sand supply device which comprises a workbench, a feeding barrel and a filter screen plate are arranged above the workbench, the filter screen plate is located below the feeding barrel, a feeding bin opening is formed in the inner wall of the top of the feeding barrel, and the inner wall of the feeding barrel is rotationally connected with a connecting rotating plate; a scattering assembly is arranged in the connecting rotating plate and used for loosening caked sand, a driving assembly is arranged on one side of the connecting rotating plate, and through the driving assembly and the scattering assembly, when the sand is scattered, only the completely-loosened sand can fall into the upper surface of a filtering sieve plate through a discharging opening; and the sand which is not scattered continues to be scattered until all the sand is completely scattered, so that all the sand is scattered, the sand can more easily pass through sieve holes of the filter sieve plate, the screening difficulty is reduced, the screening time is shortened, and the screening efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sand supply for core shooting machines, and specifically relates to a sand supply device for core shooting machines. Background Art

[0002] The sand supply device of the core shooting machine refers to the equipment or components used to provide core sand mixture into the core box of the core shooting machine. It usually includes a container for storing core sand, a mechanism for conveying core sand, and a mechanism for controlling the supply amount of core sand, etc., to ensure that the core sand can be evenly and stably supplied to the core box to meet the needs of the core shooting machine to produce sand cores. At the same time, before entering the core box, the sand needs to be processed in multiple aspects such as screening, mixing, drying, conveying and metering to ensure that the sand meets the production requirements of the core shooting machine, thereby producing high-quality and accurately shaped sand cores.

[0003] The prior art also proposes some solutions: for example, a patent with publication number CN116511424A discloses a sand supply device for a core shooting machine, comprising: a base, horizontally arranged on the core shooting machine; a sand box, vertically arranged on the base, and the lower end of which is connected to the core shooting machine; an adhesive input pipe, connected to the upper side of one side of the sand box; a core sand input pipe, connected to the upper side of the other side of the sand box; a stirring paddle, vertically rotatably arranged in the sand box; by setting up a real-time feeding sand supply device, real-time preparation of the mixture is achieved, thereby ensuring continuous preparation and supply of the sand supply device and ensuring production efficiency, and at the same time using the stirring paddle to stir the mixture in the sand box in real time to ensure the uniformity of the mixture and the quality of the finished sand core products.

[0004] In order to ensure that the sand entering the sand supply box has a uniform particle size, the existing device needs to screen the original sand to remove impurities, large particles or sand particles that do not meet the requirements. However, the sand is prone to agglomeration before screening. The sand particles in the agglomerates are often large and may contain impurities and particles that do not meet the requirements, which not only affects the effect of sand screening, but also the agglomerated sand will get stuck in the conveying pipe or conveying mechanism after entering the sand supply device, resulting in poor sand supply or blockage, affecting the stable operation of the sand supply device and even causing equipment failure.

[0005] To this end, the present invention provides a sand supply device for a core shooting machine. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art: solve at least one technical problem raised in the background technology.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a sand supply device of a core shooting machine described in the present invention comprises a workbench, a feed barrel and a filter screen plate are arranged above the workbench, the filter screen plate is located below the feed barrel, a feed bin opening is provided on the top inner wall of the feed barrel, a connecting turn plate is rotatably connected to the inner wall of the feed barrel, the shaft of the connecting turn plate is rotatably connected to the center of the inner wall of the feed barrel, a plurality of discharge ports are evenly provided on the inner wall of the lower half of the feed barrel, a breaking up assembly is arranged inside the connecting turn plate, the breaking up assembly is used to loosen the agglomerated sand material, a driving assembly is arranged on one side of the connecting turn plate, the driving assembly is used to drive the connecting turn plate to revolve in the inner wall of the feed barrel, a swinging assembly is arranged on the top of the feed barrel, the swinging assembly is used to drive the feed barrel to swing.

[0008] Preferably, the driving assembly includes two side connecting plates, the outer walls of the two feeding barrels are fixedly connected with fixing parts, the two fixing parts are respectively fixedly connected to the two side connecting plates, a motor is fixedly installed inside one of the side connecting plates, and the output shaft of the motor is fixedly connected to one end of the shaft rod connected to the rotating plate.

[0009] Preferably, the scattering assembly includes a rotating rod, both ends of which are rotatably connected to the inner walls of both sides of the connecting rotating plate, the outer wall of the rotating rod is fixedly connected to a scatterer, one end of the rotating rod is fixedly connected to gear 1, a circular groove is formed between the side connecting plate and the feed barrel, the outer wall of the rotating rod is movably connected to the circular groove, and an annular rack plate is fixedly connected to one side of the feed barrel, and the teeth of the annular rack plate are meshed and adapted with the teeth of gear 1.

[0010] Preferably, the swing assembly includes two swing members, which are respectively fixedly connected to the outer walls of the two side connecting plates, a swing rod is fixedly connected between the ends of the two swing members away from the side connecting plates, a tripod is symmetrically fixedly installed on the top of the workbench, both ends of the swing rod are respectively rotatably connected to the inner walls of the two tripods, and a transmission assembly is provided at one end of the swing rod, which is used to drive the swing rod to rotate repeatedly.

[0011] Preferably, arc-shaped baffles are symmetrically fixedly connected between the outer walls of the two tripods, and the two arc-shaped baffles are respectively located above the two sides of the feeding barrel.

[0012] Preferably, the filter screen plate is arc-shaped and made of elastic material, and inner sliders are symmetrically fixedly connected at both ends of the filter screen plate. Multiple fixed seats are fixedly connected to the top of the workbench, and the inner wall of each fixed seat is slidably connected and adapted to the outer wall of each inner slider. A stretching component is provided on one side of the fixed seat, and the stretching component is used to drive the inner slider to slide repeatedly in the inner wall of the fixed seat. A number of sieve holes are evenly opened on the inner wall of the filter screen plate, and a steel ring is fixedly installed on the inner wall of each sieve hole.

[0013] Preferably, the stretching assembly includes a plurality of connecting rods, one end of each connecting rod is fixedly connected to one side of the inner sliding block, the outer wall of the connecting rod is plugged into the inner wall of the fixing seat, an end of the connecting rod away from the fixing seat is fixedly connected to a triangular extrusion block, a return spring is provided on the outside of the connecting rod, one end of the return spring is fixedly connected to one side of the inner sliding block, and the other end of the return spring is fixedly connected to the inner wall surface of the fixing seat, a trapezoidal platform is provided below every two triangular extrusion blocks, the inclined surfaces of the two triangular extrusion blocks are respectively fitted with the two inclined surfaces of the trapezoidal platform, and a lifting assembly for driving the trapezoidal platform to rise and fall is provided on one side of the trapezoidal platform.

[0014] Preferably, the lifting assembly includes two fixed seats 2, and the two fixed seats 2 are fixedly installed on the top of the workbench. A hydraulic cylinder is fixedly installed on the top of the two fixed seats 2, and the output ends of the two hydraulic cylinders are fixedly connected to inner sliders 2, one end of the two inner sliders 2 is respectively fixedly connected to one side of the two trapezoidal platforms, and the two inner sliders 2 are respectively slidably connected to the inner walls of the two fixed seats 2 and are adapted to each other.

[0015] Preferably, the transmission assembly includes a rack plate, which is fixedly connected to one side of the trapezoidal platform, and the outer wall of the swing rod is fixedly connected to gear 2. The teeth of the rack plate are divided into upper and lower parts and both can mesh with the teeth of gear 2, and the two parts have the same number of teeth.

[0016] Preferably, collection boxes are provided on both sides of the top of the workbench, and the two collection boxes are respectively located below both sides of the filter screen plate. A sand supply box is provided above the workbench, and the sand supply box is located directly below the filter screen plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The sand supply device of the core shooting machine described in the present invention, through the driving component and the breaking component, during the breaking work of the sand material, only the completely loose sand material can fall into the upper surface of the filter screen plate through the discharge port, and the sand material that has not been broken up will continue to be broken up until all the sand material is completely broken up, thus achieving the goal of completely breaking up the sand material, making it easier for the sand material to pass through the sieve holes of the filter screen plate, reducing the difficulty and time of screening, and thus improving the screening efficiency.

[0019] 2. The sand supply device of the core shooting machine described in the present invention uses a swinging assembly. During the repeated swinging of the feed barrel, when it swings to the highest points at both ends, it will hit the arc-shaped baffles on the upper sides respectively. After hitting one side of the arc-shaped baffle, the outer wall of the feed barrel will vibrate under the action of the impact force. The generated vibration will transmit the vibration wave to its entire internal structure. The vibration will enable the sand to fall smoothly from the discharge port after being broken up, avoiding the accumulation and retention of the sand, and ensuring that the sand can all flow out through the discharge port for subsequent screening after being broken up.

[0020] 3. In the sand supply device of a core shooting machine described in the present invention, when the lifting assembly drives the trapezoidal table to rise and fall, the filter screen plate is made of elastic material and the arc curvature of the filter screen plate will be continuously changed, so that the filter screen plate will be repeatedly deformed. During the deformation process, the filter screen plate can cause tension on its surface to form vibration. The vibration helps to further loosen the sand material and make it easier for fine particles to pass through the sieve holes, thereby improving the screening accuracy and quality, while also preventing the sand material from stagnation and accumulation on the upper surface of the filter screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is an overall stereogram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the arc baffle in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the tripod in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the swing rod in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the feeding barrel in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of a gear in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the connecting rotating plate in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the filter screen plate in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the trapezoidal platform in the present invention;

[0031] Fig.10 It is a schematic diagram of the second structure of the gear in the present invention;

[0032] Fig.11 It is a structural schematic diagram of the filter screen plate in the present invention.

[0033] In the figure: 1. workbench; 2. feed barrel; 3. feed bin opening; 4. connecting rotating plate; 5. discharge port; 6. side connecting plate; 7. fixing piece; 8. motor; 9. rotating rod; 10. scatterer; 11. gear 1; 12. annular rack plate; 13. circular groove; 14. swinging piece; 15. swinging rod; 16. tripod; 17. arc baffle; 18. filter screen plate; 19. fixing seat 1; 20. inner slide block 1; 21. connecting rod; 22. triangular extrusion block; 23. trapezoidal table; 24. inner slide block 2; 25. fixing seat 2; 26. hydraulic cylinder; 27. rack plate; 28. gear 2; 29. ​​reset spring; 30. collection box; 31. sand supply box; 32. steel ring. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 to 10 As shown, the present invention provides a technical solution: a sand supply device for a core shooting machine, comprising a workbench 1, a feed barrel 2 and a filter screen plate 18 are arranged above the workbench 1, the filter screen plate 18 is located below the feed barrel 2, a feed bin opening 3 is provided on the top inner wall of the feed barrel 2, a connecting rotating plate 4 is rotatably connected to the inner wall of the feed barrel 2, the shaft of the connecting rotating plate 4 is rotatably connected to the center of the inner wall of the feed barrel 2, a plurality of discharge ports 5 are evenly provided on the inner wall of the lower half of the feed barrel 2, a breaking up assembly is arranged inside the connecting rotating plate 4, the breaking up assembly is used to loosen the agglomerated sand material, a driving assembly is arranged on one side of the connecting rotating plate 4, the driving assembly is used to drive the connecting rotating plate 4 to revolve in the inner wall of the feed barrel 2, a swinging assembly is arranged on the top of the feed barrel 2, the swinging assembly is used to drive the feed barrel 2 to swing.

[0036] During work: During the preparation work, the sand material to be supplied is evenly added into the interior of the feed barrel 2 from above the feed bin opening 3, and then the driving assembly is started. The driving assembly will drive the connecting rotating plate 4 to rotate through the shaft of the connecting rotating plate 4. When the connecting rotating plate 4 rotates, it will rotate along the inner wall of the feed barrel 2 with the shaft as the center point, and during the rotation process, the scattering assembly can rotate by itself to loosen the sand material inside the feed barrel 2, and the connecting rotating plate 4 drives the scattering assembly to rotate in coordination with the scattering. When the assembly rotates, the sand material that has been broken up can fall onto the upper surface of the filter screen plate 18 through the inner hole of the discharge port 5, while the sand material that cannot pass through the inner hole of the discharge port 5 will continue to stay in the feed barrel 2, and will be broken up in sequence when the connecting rotating plate 4 continues to rotate, until all the sand material in the feed barrel 2 falls out through the inner hole of the discharge port 5, and the breaking up work is completed. During the breaking up work, the broken up sand material will continue to fall onto the upper surface of the filter screen plate 18 for screening, and the sand material that cannot pass through the inner hole of the discharge port 5 will continue to stay in the feed barrel 2, and will be broken up in sequence when the connecting rotating plate 4 continues to rotate, and the sand material that cannot pass through the inner hole of the discharge port 5 will continue to fall onto the upper surface of the filter screen plate 18 for screening. The sieve 18 is a filter that is used to filter the filter screen 18 and filter the filter screen 18 so that the filter screen 18 can be easily filtered out and the filter screen 18 can be easily filtered out.

[0037] like Figures 5 to 7 As shown, the driving assembly includes two side connecting plates 6, and the outer walls of the two feeding barrels 2 are fixedly connected with fixing parts 7, and the two fixing parts 7 are respectively fixedly connected to the two side connecting plates 6. A motor 8 is fixedly installed inside one of the side connecting plates 6, and the output shaft of the motor 8 is fixedly connected to one end of the shaft rod connected to the rotating plate 4.

[0038] During operation: after the sand material is loaded into the feed barrel 2, the motor 8 is started, and its output shaft will drive the shaft rod of the connecting rotating plate 4 to rotate, and the shaft rod will drive the connecting rotating plate 4 to rotate inside the feed barrel 2. During rotation, the connecting rotating plate 4 will drive the entire scattering assembly to revolve inside the feed barrel 2, and at the same time, the scattering assembly can rotate on itself to loosen all the sand material, and the loosened sand material can fall out through the discharge port 5, and the sand material that has not been scattered will continue to be scattered during the continued rotation of the connecting rotating plate 4 until all the sand material can fall out.

[0039] like Figures 5 to 7 As shown, the scattering assembly includes a rotating rod 9, both ends of which are rotatably connected to the inner walls of the two sides of the connecting rotating plate 4, the outer wall of the rotating rod 9 is fixedly connected to a scatterer 10, one end of the rotating rod 9 is fixedly connected to a gear 11, a circular groove 13 is formed between the side connecting plate 6 and the feed barrel 2, the outer wall of the rotating rod 9 is movably connected to the circular groove 13, and one side of the feed barrel 2 is fixedly connected to an annular rack plate 12, the teeth of the annular rack plate 12 are meshed and adapted with the teeth of the gear 11.

[0040] During operation: when the connecting rotating plate 4 rotates, the rotating rod 9 will slide along the inner wall of the circular groove 13, and the gear 11 connected to the outer wall of the rotating rod 9 will gradually mesh with the teeth of the circular groove 13 when sliding. Therefore, the rotating rod 9 will rotate when sliding, and drive the scatterer 10 to rotate. The scatterer 10 will continuously scatter the sand material inside the feed barrel 2 when rotating, thereby achieving the effect of loosening the sand material. The connection rotating plate 4 drives the scattering component to revolve and the scattering component to rotate, so that all the sand materials can be scattered to avoid omission.

[0041] like Figure 3 to Figure 4 As shown, the swing assembly includes two swing members 14, and the two swing members 14 are respectively fixedly connected to the outer walls of the two side connecting plates 6, and a swing rod 15 is fixedly connected between the ends of the two swing members 14 away from the side connecting plates 6. A tripod 16 is symmetrically fixedly installed on the top of the workbench 1, and the two ends of the swing rod 15 are respectively rotatably connected to the inner walls of the two tripods 16. A transmission assembly is provided at one end of the swing rod 15, and the transmission assembly is used to drive the swing rod 15 to rotate repeatedly.

[0042] During operation: when the sand material falls onto the upper surface of the filter screen plate 18 for screening, the transmission component will move, and the transmission component will cause the swing rod 15 to rotate repeatedly during the movement. When the swing rod 15 rotates repeatedly, the swing member 14 will cause the feed barrel 2 to swing repeatedly around the central axis of the swing rod 15. The sand material that is broken up during the swinging can flow out through the discharge port 5 more easily, and the sand material that is broken up can be separated and broken up more easily when the sand material is loosened by the breaking component. The position of the entire feed barrel 2 and the swing rod 15 is fixed by the tripod 16 to enhance the stability of the entire device.

[0043] like Figure 3 to Figure 4 As shown, arc-shaped baffles 17 are symmetrically fixedly connected between the outer walls of the two tripods 16 , and the two arc-shaped baffles 17 are respectively located above the two sides of the feeding barrel 2 .

[0044] During operation: the feed barrel 2 repeatedly swings, and when it swings to the highest points at both ends, it will hit the arc-shaped baffles 17 on both sides respectively. After hitting one side of the arc-shaped baffle 17, the outer wall of the feed barrel 2 will vibrate under the action of the impact force, and the generated vibration will transmit the vibration wave to its entire internal structure. The vibration will make the sand material fall smoothly from the discharge port 5 after being broken up, avoiding the accumulation and retention of the sand material, and ensuring that the sand material can all flow out through the discharge port 5 after being broken up for subsequent screening.

[0045] like Figures 8 to 9 As shown, the filter screen plate 18 is arc-shaped and made of elastic material. The two ends of the filter screen plate 18 are symmetrically fixedly connected with inner sliders 20. The top of the workbench 1 is fixedly connected with multiple fixed seats 19. The inner wall of each fixed seat 19 is slidably connected and matched with the outer wall of each inner slider 20. A stretching component is provided on one side of the fixed seat 19. The stretching component is used to drive the inner slider 20 to slide repeatedly in the inner wall of the fixed seat 19. The inner wall of the filter screen plate 18 is evenly opened with a plurality of sieve holes, and the inner wall of each sieve hole is fixedly installed with a steel ring 32.

[0046] During operation: when the sand material is broken up, it will fall onto the upper surface of the filter screen plate 18. Since the filter screen plate 18 is arc-shaped, the sand material with larger particles will slide out from both sides of the filter screen plate 18, while the sand material with appropriate particle size will fall from the sieve holes of the filter screen plate 18, and the inner slider 20 will be driven by the stretching component to slide repeatedly in the inner wall of the fixing seat 19. During the repeated sliding process of the inner slider 20, since the filter screen plate 18 is made of elastic material, the arc bending degree of the filter screen plate 18 will be continuously changed, so that the filter screen plate 18 will be repeatedly deformed. During the deformation process, the filter screen plate 18 can cause tension on its surface to form vibration. The vibration helps to further loosen the sand material and make it easier for fine particles to pass through the sieve holes, thereby improving the screening accuracy and quality, while also preventing the sand material from stagnates and accumulates on the upper surface of the filter screen plate 18. When the filter screen plate 18 is bent and deformed, in order to ensure that the aperture of the sieve hole does not change, a steel ring 32 is provided inside the sieve hole for support. When the filter screen plate 18 is deformed, the steel ring 32 does not change, so the aperture of the sieve hole remains unchanged, thereby ensuring the screening accuracy.

[0047] like Figures 8 to 9 As shown, the stretching assembly includes a plurality of connecting rods 21, one end of each connecting rod 21 is fixedly connected to one side of the inner slider 20, the outer wall of the connecting rod 21 is plugged into the inner wall of the fixing seat 19, and the end of the connecting rod 21 away from the fixing seat 19 is fixedly connected with a triangular extrusion block 22, and a return spring 29 is arranged on the outside of the connecting rod 21, one end of the return spring 29 is fixedly connected to one side of the inner slider 20, and the other end of the return spring 29 is fixedly connected to the inner wall surface of the fixing seat 19, a trapezoidal platform 23 is arranged below every two triangular extrusion blocks 22, the inclined surfaces of the two triangular extrusion blocks 22 are respectively fitted with the two inclined surfaces of the trapezoidal platform 23, and a lifting assembly for driving the trapezoidal platform 23 to rise and fall is arranged on one side of the trapezoidal platform 23.

[0048] When working: start the lifting component to first drive the trapezoidal platform 23 to rise. During the rise, the inclined surface of the trapezoidal platform 23 will gradually squeeze the two triangular extrusion blocks 22. After being squeezed, the two triangular extrusion blocks 22 make the two inner sliders 20 slide toward both sides on the inner walls of the fixed seat 19 respectively through the connecting rod 21. When the inner slider 20 slides, the reset spring 29 is stretched to deform it, and when the inner slider 20 slides, the filter screen plate 18 is also stretched to both sides, and the bending curvature changes. When the lifting component causes the trapezoidal platform 23 to descend, the inner slider 20 is quickly reset under the action of the reset spring 29, and the filter screen plate 18 is restored to its deformation. This is repeated to achieve repeated vibration of the filter screen plate 18, so that the sand material that continuously falls onto the filter screen plate 18 can be continuously and quickly screened.

[0049] like Figures 8 to 9As shown, the lifting assembly includes two fixed seats 25, and the two fixed seats 25 are fixedly installed on the top of the workbench 1. A hydraulic cylinder 26 is fixedly installed on the top of the two fixed seats 25. The output ends of the two hydraulic cylinders 26 are fixedly connected to inner sliders 24. One end of the two inner sliders 24 is fixedly connected to one side of the two trapezoidal platforms 23 respectively. The two inner sliders 24 are respectively slidably connected to the inner walls of the two fixed seats 25 and are adapted to each other.

[0050] When working: the hydraulic cylinder 26 is started, and its output end drives the inner sliding block 24 to slide repeatedly in the inner wall of the fixing seat 25, so that the trapezoidal platform 23 is repeatedly lifted and lowered, thereby causing the filter screen plate 18 to be repeatedly deformed, achieving a repeated vibration effect.

[0051] like Figures 9 and 10 As shown, the transmission assembly includes a rack plate 27, which is fixedly connected to one side of the trapezoidal platform 23. The outer wall of the swing rod 15 is fixedly connected to a gear 28. The teeth of the rack plate 27 are divided into two parts, the upper and lower parts, and both can mesh with the teeth of the gear 28. The number of teeth in the two parts is the same.

[0052] During operation: in the initial state, the inner slider 24 is located at the middle end position of the fixed seat 25. When the inner slider 24 rises, it will drive the rack plate 27 to move upward through the trapezoidal platform 23. At this time, the teeth of the lower half of the rack plate 27 can engage with the gear 28 to make the swing rod 15 rotate. When the swing rod 15 rotates, it will drive the feed barrel 2 to swing to one end and hit one of the arc-shaped baffles 17. When the inner slider 24 descends and descends to the bottom of the fixed seat 25, the teeth of the upper and lower parts of the rack plate 27 can engage with the gear 28, so that the feed barrel 2 is reset first and then swings to hit the other arc-shaped baffle 17. This repeated operation achieves the effect of the feed barrel 2 repeatedly swinging and constantly hitting the two arc-shaped baffles 17 to cause vibration.

[0053] like Figure 1 As shown, collecting boxes 30 are arranged on both sides of the top of the workbench 1 , and the two collecting boxes 30 are respectively located below both sides of the filter screen plate 18 . A sand supply box 31 is arranged above the workbench 1 , and the sand supply box 31 is located directly below the filter screen plate 18 .

[0054] During operation: through the collection box 30 that is set and located below the two sides of the filter screen plate 18, the sand material with larger particles that cannot pass through the sieve holes of the filter screen plate 18 will fall into the collection box 30 for collection after screening, while the sand material with appropriate particles will pass through the sieve holes of the filter screen plate 18 and fall into the sand supply box 31, and can directly enter the core box of the core shooting machine from the outlet of the sand supply box 31.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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. A sand supply device for a core shooting machine, comprising a workbench (1), characterized in that: A feed barrel (2) and a filter screen plate (18) are arranged above the workbench (1), the filter screen plate (18) is located below the feed barrel (2), a feed bin opening (3) is provided on the top inner wall of the feed barrel (2), a connecting rotating plate (4) is rotatably connected to the inner wall of the feed barrel (2), a shaft of the connecting rotating plate (4) is rotatably connected to the center of the inner wall of the feed barrel (2), a plurality of discharge openings (5) are evenly provided on the inner wall of the lower half of the feed barrel (2), a breaking component is arranged inside the connecting rotating plate (4), the breaking component is used to loosen agglomerated sand materials, a driving component is arranged on one side of the connecting rotating plate (4), the driving component is used to drive the connecting rotating plate (4) to revolve in the inner wall of the feed barrel (2), and a swinging component is arranged on the top of the feed barrel (2), the swinging component is used to drive the feed barrel (2) to swing.

2. The sand supply device of the core shooting machine according to claim 1, characterized in that: The driving assembly comprises two side connecting plates (6), the outer walls of the two feeding barrels (2) are fixedly connected with fixing members (7), the two fixing members (7) are respectively fixedly connected to the two side connecting plates (6), a motor (8) is fixedly installed inside one of the side connecting plates (6), and the output shaft of the motor (8) is fixedly connected to one end of a shaft connected to the rotating plate (4).

3. The sand supply device of the core shooting machine according to claim 2, characterized in that: The scattering assembly comprises a rotating rod (9), the two ends of the rotating rod (9) are rotatably connected to the inner walls of the two sides of the connecting rotating plate (4), the outer wall of the rotating rod (9) is fixedly connected to a scatterer (10), one end of the rotating rod (9) is fixedly connected to a gear 1 (11), a circular groove (13) is formed between the side connecting plate (6) and the feed barrel (2), the outer wall of the rotating rod (9) and the circular groove (13) are movably connected, and one side of the feed barrel (2) is fixedly connected to an annular rack plate (12), the teeth of the annular rack plate (12) are meshed and matched with the teeth of the gear 1 (11).

4. The sand supply device of the core shooting machine according to claim 3, characterized in that: The swing assembly comprises two swing members (14), the two swing members (14) are respectively fixedly connected to the outer walls of the two side connecting plates (6), a swing rod (15) is fixedly connected between the ends of the two swing members (14) away from the side connecting plates (6), a tripod (16) is symmetrically fixedly installed on the top of the workbench (1), the two ends of the swing rod (15) are respectively rotatably connected to the inner walls of the two tripods (16), and a transmission assembly is provided at one end of the swing rod (15), and the transmission assembly is used to drive the swing rod (15) to rotate repeatedly.

5. The sand supply device of the core shooting machine according to claim 4, characterized in that: An arc-shaped baffle plate (17) is symmetrically fixedly connected between the outer walls of the two tripods (16), and the two arc-shaped baffle plates (17) are respectively located above the two sides of the feeding barrel (2).

6. A sand supply device for a core shooting machine according to claim 5, characterized in that: The filter screen plate (18) is arc-shaped and made of elastic material. The two ends of the filter screen plate (18) are symmetrically fixedly connected with inner sliders (20). The top of the workbench (1) is fixedly connected with a plurality of fixed seats (19). The inner wall of each fixed seat (19) is slidably connected and matched with the outer wall of each inner slider (20). A stretching component is provided on one side of the fixed seat (19). The stretching component is used to drive the inner slider (20) to slide repeatedly in the inner wall of the fixed seat (19). The inner wall of the filter screen plate (18) is evenly provided with a plurality of sieve holes, and a steel ring (32) is fixedly installed on the inner wall of each sieve hole.

7. A sand supply device for a core shooting machine according to claim 6, characterized in that: The stretching assembly comprises a plurality of connecting rods (21), one end of each connecting rod (21) being fixedly connected to one side of an inner sliding block (20), the outer wall of the connecting rod (21) being plugged into the inner wall of a fixing seat (19), one end of the connecting rod (21) away from the fixing seat (19) being fixedly connected to a triangular extrusion block (22), a return spring (29) being arranged outside the connecting rod (21), one end of the return spring (29) being fixedly connected to one side of an inner sliding block (20), the other end of the return spring (29) being fixedly connected to the inner wall surface of the fixing seat (19), a trapezoidal platform (23) being arranged below every two triangular extrusion blocks (22), the inclined surfaces of the two triangular extrusion blocks (22) being respectively fitted to two inclined surfaces of the trapezoidal platform (23), and a lifting assembly for driving the trapezoidal platform (23) to be lifted and lowered being arranged on one side of the trapezoidal platform (23).

8. The sand supply device of the core shooting machine according to claim 7, characterized in that: The lifting assembly comprises two second fixing seats (25), the two second fixing seats (25) are fixedly mounted on the top of the workbench (1), the top of the two second fixing seats (25) are fixedly mounted with hydraulic cylinders (26), the output ends of the two hydraulic cylinders (26) are fixedly connected with second inner slide blocks (24), one end of the two second inner slide blocks (24) is respectively fixedly connected to one side of the two trapezoidal platforms (23), and the two second inner slide blocks (24) are respectively slidably connected to the inner walls of the two second fixing seats (25) and are mutually adapted.

9. The sand supply device of the core shooting machine according to claim 8, characterized in that: The transmission assembly comprises a rack plate (27) which is fixedly connected to one side of the trapezoidal platform (23). The outer wall of the swing rod (15) is fixedly connected to a second gear (28). The teeth of the rack plate (27) are divided into an upper and a lower part, both of which can mesh with the teeth of the second gear (28). The number of teeth of the two parts is the same.

10. A sand supply device for a core shooting machine according to claim 9, characterized in that: Collection boxes (30) are arranged on both sides of the top of the workbench (1), and the two collection boxes (30) are respectively located below both sides of the filter screen plate (18). A sand supply box (31) is arranged above the workbench (1), and the sand supply box (31) is located directly below the filter screen plate (18).

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