Waste sand sieving equipment for precision casting production

Abstract

The utility model discloses waste sand sieving equipment for precision casting production, which comprises a sieving box, a crushing box and a sand storage box, the crushing box is fixedly arranged at the top of the sieving box, the sand storage box is arranged at the bottom of the sieving box, the two sides of the crushing box are fixedly connected with U-shaped seats, and the inner walls of the U-shaped seats are movably connected with movable seats. By arranging the water conveying pipe, the atomizing spray pipe, the water conveying pump, the moving seat, the fixing assembly and the driving mechanism, the water conveying pipe can be effectively fixed by the fixing assembly, water is sucked through the water conveying pump and sprayed to the periphery of the crushing box through the atomizing spray pipe, and the atomizing spray pipe is driven by the driving mechanism to move, so that dust flying can be effectively inhibited; the problems that when large particles in waste sand are smashed through a smashing box body, due to the lack of a dust falling structure, a large number of fine dust particles are generated and float around, the atmospheric environment is polluted, and the body health of operators is harmed are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of waste sand screening equipment for castings, specifically a waste sand screening device for precision casting production. Background Technology

[0002] The booming development of the foundry industry has resulted in a large amount of foundry waste sand being discharged annually, causing serious harm to the environment. The generation of waste sand that needs to be disposed of is unavoidable in foundry production. However, a large amount of waste sand generated during the casting process can be recycled.

[0003] Currently, Chinese utility model patent CN212310766U discloses a waste sand screening device for a casting production line. The device includes a protective housing and a crushing device mounted on top of the protective housing. Multiple sets of first motors are arranged in a rectangular array at the top of the protective housing, and a rectangular groove communicating with the crushing device is opened at the center of the top of the protective housing. Multiple sets of load-bearing legs are arranged at the four corners of the bottom of the protective housing, and a discharge box is located at the center of the bottom of the protective housing. A discharge port communicating with the discharge box is opened at the center of the bottom of the protective housing. Multiple sets of second motors are arranged in a rectangular array at the bottom of the protective housing. A working chamber is opened inside the protective housing, and a first screen plate and a second screen plate are installed inside the working chamber. This waste sand screening device for a casting production line can separate different types of waste sand, crush large pieces of waste sand, facilitate screening, and the screens are easy to remove and clean, thus improving screening efficiency.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, while the aforementioned equipment can solve the problem that existing waste sand screening devices generally concentrate waste sand in one place and cannot directly separate waste sand by size, thus requiring the use of screening devices to separate waste sand of different sizes, current waste sand screening devices cannot process large pieces of waste sand and are prone to clogging the screen. Furthermore, during use, when crushing large particles of waste sand in the crushing box, the lack of a dust suppression structure generates a large amount of fine dust particles that float around, thus polluting the atmospheric environment and posing a health hazard to operators. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a waste sand screening device for precision casting production, which has the advantage of dust reduction function. This solves the problem that when large particles in waste sand are crushed through the crushing box, a large number of fine dust particles are generated and float around due to the lack of dust reduction structure, which will pollute the atmospheric environment and harm the health of operators.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste sand screening device for precision casting production, comprising a screening box, a crushing box, and a sand storage box. The crushing box is fixedly installed on the top of the screening box, and the sand storage box is located at the bottom of the screening box. U-shaped seats are fixedly connected to both sides of the crushing box. A movable seat is movably connected to the inner wall of the U-shaped seat. A rotating rod is movably connected to the inner wall of the movable seat via a bearing. A water supply pipe is fixedly connected to the front side of the rotating rod. An atomizing spray pipe is connected to the surface of the water supply pipe. The atomizing spray pipe is arranged in four sets and is evenly distributed. A water pump is fixedly connected to both sides of the top of the screening box. The output end of the water pump is connected to the bottom of the water supply pipe. Fixed components are provided at the top and bottom of the front side of the movable seat. A drive mechanism is fixedly connected to the right side of the crushing box.

[0007] In a preferred embodiment of this utility model, the fixing component includes a groove, which is formed on both sides of the front side of the movable seat. A fixing ring is movably connected to the inner wall of the groove. A spring is provided on both sides inside the groove. One end of the spring is fixedly connected to the two sides of the rear side of the fixing ring, and the other end of the spring is fixedly connected to the two sides of the rear side of the inner wall of the groove. The inner wall of the fixing ring is movably connected to the surface of the water pipe.

[0008] In a preferred embodiment of this invention, the driving mechanism includes a U-shaped plate, which is fixedly connected to the right side of the crushing chamber. A dual-shaft motor is fixedly connected to the inner wall of the U-shaped plate. A first helical tooth is fixedly connected to the output end of the dual-shaft motor. A second helical tooth is meshed with the outer side of the first helical tooth. A reciprocating screw is movably connected to the left side of the inner wall of the U-shaped plate via a bearing. The right side of the reciprocating screw extends through to the right side of the U-shaped plate. The second helical tooth is fixedly connected to the right side of the reciprocating screw. The surface of the reciprocating screw is threadedly connected to the inner wall of the moving seat.

[0009] In a preferred embodiment of this invention, pull blocks are fixedly connected to both sides of the fixing ring, and the pull blocks are arranged in an arc shape.

[0010] As a preferred embodiment of this invention, a control box is fixedly connected to the front right side of the sieving box, and the control box is electrically connected to the dual-shaft motor via wires.

[0011] As a preferred embodiment of this utility model, limit blocks are fixedly connected to both sides of the inner wall of the U-shaped plate, and the surface of the limit blocks is movably connected to the output end of the dual-axis motor.

[0012] As a preferred embodiment of this utility model, the inner wall of the U-shaped seat is provided with a sliding groove, and a ball bearing is movably embedded in the inner side of the movable seat, with the surface of the ball bearing being movably connected to the inner wall of the sliding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting up a water supply pipe, an atomizing spray pipe, a water pump, a movable base, a fixing component, and a driving mechanism, can effectively fix the water supply pipe with the fixing component, draw water through the water pump and spray it around the crushing box through the atomizing spray pipe, and drive the atomizing spray pipe to move through the driving mechanism. This can effectively suppress dust and reduce the harm of dust to the environment and operators, thereby achieving the effect of dust suppression. It solves the problem that when crushing large particles in waste sand in the crushing box, due to the lack of a dust suppression structure, a large number of fine dust particles will be generated and float around, which will pollute the atmospheric environment and harm the health of operators. It has the advantage of dust suppression function.

[0015] 2. This utility model, by setting a fixing component, when dust suppression is required, rotates the rotating rod on the inner wall of the moving seat to a vertical state, causing the spring to push the fixing ring to move outward through the force, so that the fixing ring can fix the water pipe, thereby improving the stability of the water pipe. After the water pipe is used, the fixing ring separates from the water pipe, and the water pipe returns to its initial position by rotating 180 degrees under gravity.

[0016] 3. By setting up a drive mechanism, this utility model can effectively enable the dual-axis motor to drive the first helical gear to rotate, thereby causing the reciprocating screw to rotate and realizing the reciprocating motion of the moving seat. This, in turn, drives the water supply pipe and the atomizing nozzle to move back and forth, expanding the dust suppression range and enabling the atomizing nozzle to uniformly suppress dust around the crushing box, further improving the dust suppression effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the U-shaped base of this utility model;

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the movable seat of this utility model.

[0020] In the diagram: 1. Screening box; 2. Crushing box; 3. Sand storage box; 4. U-shaped seat; 5. Moving seat; 6. Rotating rod; 7. Water supply pipe; 8. Atomizing nozzle; 9. Water pump; 10. Fixing component; 101. Groove; 102. Fixing ring; 103. Spring; 11. Drive mechanism; 111. U-shaped plate; 112. Dual-shaft motor; 113. Helical gear one; 114. Helical gear two; 115. Reciprocating screw; 12. Pull block; 13. Control box; 14. Limit block; 15. Slide groove; 16. Ball bearing. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 3 As shown, the present invention provides a waste sand screening device for precision casting production, including a screening box 1, a crushing box 2, and a sand storage box 3. The crushing box 2 is fixedly installed on the top of the screening box 1, and the sand storage box 3 is located at the bottom of the screening box 1. Both sides of the crushing box 2 are fixedly connected to U-shaped seats 4. The inner wall of the U-shaped seats 4 is movably connected to a movable seat 5. The inner wall of the movable seat 5 is movably connected to a rotating rod 6 through a bearing. The front side of the rotating rod 6 is fixedly connected to a water supply pipe 7. The surface of the water supply pipe 7 is connected to an atomizing spray pipe 8. The number of atomizing spray pipes 8 is arranged in four groups and is evenly distributed. Both sides of the top of the screening box 1 are fixedly connected to a water pump 9. The output end of the water pump 9 is connected to the bottom of the water supply pipe 7. The top and bottom of the front side of the movable seat 5 are provided with fixing components 10. The right side of the crushing box 2 is fixedly connected to a drive mechanism 11.

[0023] refer to Figure 1 and Figure 3 The fixing component 10 includes a groove 101, which is formed on both sides of the front side of the movable seat 5. A fixing ring 102 is movably connected to the inner wall of the groove 101. A spring 103 is provided on both sides inside the groove 101. One end of the spring 103 is fixedly connected to the two sides of the rear side of the fixing ring 102, and the other end of the spring 103 is fixedly connected to the two sides of the rear side of the inner wall of the groove 101. The inner wall of the fixing ring 102 is movably connected to the surface of the water pipe 7.

[0024] As a technical optimization of this utility model, by setting the fixing component 10, when dust suppression is required, the rotating rod 6 on the inner wall of the moving seat 5 is rotated to a vertical state, so that the spring 103 pushes the fixing ring 102 to move outward by force, so that the fixing ring 102 can fix the water pipe 7, thereby improving the stability of the water pipe 7. When the water pipe 7 is used up, the fixing ring 102 is separated from the water pipe 7, so that the water pipe 7 is rotated 180 degrees by gravity to return to the initial position.

[0025] refer to Figure 1 and Figure 2The drive mechanism 11 includes a U-shaped plate 111, which is fixedly connected to the right side of the crushing box 2. A dual-shaft motor 112 is fixedly connected to the inner wall of the U-shaped plate 111. A helical tooth 113 is fixedly connected to the output end of the dual-shaft motor 112. A helical tooth 114 is meshed with the outer side of the helical tooth 113. A reciprocating screw 115 is movably connected to the left side of the inner wall of the U-shaped plate 111 via a bearing. The right side of the reciprocating screw 115 extends through to the right side of the U-shaped plate 111. The helical tooth 114 is fixedly connected to the right side of the reciprocating screw 115. The surface of the reciprocating screw 115 is threadedly connected to the inner wall of the moving seat 5.

[0026] As a technical optimization of this utility model, by setting a drive mechanism 11, the dual-axis motor 112 can effectively drive the helical gear 113 to rotate the helical gear 114, causing the reciprocating screw 115 to rotate, realizing the reciprocating motion of the moving seat 5, thereby driving the water pipe 7 and the atomizing nozzle 8 to move back and forth, expanding the dust suppression range, and enabling the atomizing nozzle 8 to uniformly suppress dust around the crushing box 2, further improving the dust suppression effect.

[0027] refer to Figure 1 and Figure 3 Pull blocks 12 are fixedly connected to both sides of the fixing ring 102, and the pull blocks 12 are arranged in an arc shape.

[0028] As a technical optimization of this utility model, by setting a pull block 12, the pull block 12 is set in an arc shape, which makes it convenient for the operator to pull and press the fixing ring 102, so that the fixing ring 102 is separated from or attached to the water supply pipe 7, which facilitates the installation and disassembly of the water supply pipe 7.

[0029] refer to Figure 1 and Figure 2 A control box 13 is fixedly connected to the front right side of the screening box 1. The control box 13 is electrically connected to the dual-shaft motor 112 via wires.

[0030] As a technical optimization of this utility model, by setting up a control box 13, the control box 13 can effectively control the dual-axis motor 112, making it convenient for operators to operate.

[0031] refer to Figure 1 and Figure 2 Limiting blocks 14 are fixedly connected to both sides of the inner wall of the U-shaped plate 111, and the surface of the limiting blocks 14 is movably connected to the output end of the dual-axis motor 112.

[0032] As a technical optimization of this utility model, by setting the limiting block 14, the limiting blocks 14 on both sides of the inner wall of the U-shaped plate 111 can effectively limit the output end of the dual-axis motor 112, ensuring the stability of the operation of the dual-axis motor 112 and preventing the helical tooth 113 and the helical tooth 114 from falling off.

[0033] refer to Figure 2 and Figure 3 The inner wall of the U-shaped seat 4 is provided with a sliding groove 15, and the inner side of the movable seat 5 is movably inlaid with a ball 16, the surface of the ball 16 being movably connected to the inner wall of the sliding groove 15.

[0034] As a technical optimization of this utility model, by setting it up, the ball bearing 16 can effectively slide on the inner wall of the groove 15, which can reduce the frictional resistance when the moving seat 5 moves, making the movement of the moving seat 5 smoother and improving the operating efficiency and stability of the equipment.

[0035] The working principle and usage process of this utility model are as follows: First, open the crushing chamber 2 and pour in the waste sand to be processed. Start the crushing chamber 2 to powerfully crush the waste sand, breaking large pieces into smaller particles suitable for sieving, preparing for subsequent sieving. During the crushing process, the user rotates the water pipe 7 180 degrees. Then, the spring 103 inside the groove 101 pushes the fixing ring 102 outward, allowing the fixing ring 102 to limit and fix the water pipe 7, improving the stability of the atomizing nozzle 8. Next, connect the inlet of the water pump 9 to the water source to ensure a stable and sufficient water supply. Then, the water pump 9 draws water from the water source and delivers it through the water pipe 7. The water is then sprayed out in a mist from the atomizing nozzle 8, forming a fine water mist around the crushing chamber 2, effectively suppressing… The dust generated during the waste sand crushing process improves the working environment and achieves the dust reduction effect. During the dust reduction process, the user starts the dual-shaft motor 112, which drives the helical gear 114 to rotate through the helical gear 113 at the output end. The helical gear 114 drives the reciprocating screw 115 fixed to it to rotate. The rotation of the reciprocating screw 115 causes the moving seat 5 to reciprocate linearly within the U-shaped plate 111, thereby driving the water supply pipe 7 and the atomizing spray pipe 8 to move back and forth synchronously. This design expands the coverage of the atomized water, comprehensively reducing dust in the entire crushing area and ensuring the maximum dust reduction effect. Then, the crushed waste sand falls from the crushing box 2 into the screening box 1. The screening box 1 screens the waste sand. Sand particles that meet the specifications fall into the sand storage box 3 below, while particles that do not meet the requirements remain inside the screening box 1, waiting for further processing.

[0036] In summary, this waste sand screening equipment for precision casting production, by setting up a water supply pipe 7, an atomizing spray pipe 8, a water pump 9, a movable base 5, a fixed component 10, and a drive mechanism 11, can effectively fix the water supply pipe 7 with the fixed component 10, draw water through the water pump 9 and spray it around the crushing box 2 through the atomizing spray pipe 8, and move the atomizing spray pipe 8 through the drive mechanism 11. This can effectively suppress dust and reduce the harm of dust to the environment and operators, thereby achieving the effect of dust suppression. It solves the problem that when large particles in waste sand in the crushing box are crushed, due to the lack of a dust suppression structure, a large number of fine dust particles will be generated and float around, which will pollute the atmospheric environment and harm the health of operators.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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 waste sand screening device for precision casting production, comprising a screening box (1), a crushing box (2), and a sand storage box (3), characterized in that: The crushing box (2) is fixedly installed on the top of the sieve box (1), the sand storage box (3) is set at the bottom of the sieve box (1), the crushing box (2) is fixedly connected to both sides of the U-shaped seat (4), the inner wall of the U-shaped seat (4) is movably connected to the moving seat (5), the inner wall of the moving seat (5) is movably connected to the rotating rod (6) through the bearing, the front side of the rotating rod (6) is fixedly connected to the water supply pipe (7), the surface of the water supply pipe (7) is connected to the atomizing spray pipe (8), the number of atomizing spray pipes (8) is set to four sets and is evenly distributed, the top of the sieve box (1) is fixedly connected to both sides of the top, the output end of the water supply pump (9) is connected to the bottom of the water supply pipe (7), the top and bottom of the front side of the moving seat (5) are both provided with fixing components (10), and the right side of the crushing box (2) is fixedly connected to the driving mechanism (11).

2. The waste sand screening equipment for precision casting production according to claim 1, characterized in that: The fixing component (10) includes a groove (101) which is opened on both sides of the front side of the movable seat (5). A fixing ring (102) is movably connected to the inner wall of the groove (101). A spring (103) is provided on both sides inside the groove (101). One end of the spring (103) is fixedly connected to the two sides of the rear side of the fixing ring (102), and the other end of the spring (103) is fixedly connected to the two sides of the rear side of the inner wall of the groove (101). The inner wall of the fixing ring (102) is movably connected to the surface of the water pipe (7).

3. The waste sand screening equipment for precision casting production according to claim 1, characterized in that: The drive mechanism (11) includes a U-shaped plate (111), which is fixedly connected to the right side of the crushing box (2). A dual-axis motor (112) is fixedly connected to the inner wall of the U-shaped plate (111). A helical tooth (113) is fixedly connected to the output end of the dual-axis motor (112). A helical tooth (114) is meshed with the outer side of the helical tooth (113). A reciprocating screw (115) is movably connected to the left side of the inner wall of the U-shaped plate (111) through a bearing. The right side of the reciprocating screw (115) extends through to the right side of the U-shaped plate (111). The helical tooth (114) is fixedly connected to the right side of the reciprocating screw (115). The surface of the reciprocating screw (115) is threadedly connected to the inner wall of the moving seat (5).

4. The waste sand screening equipment for precision casting production according to claim 2, characterized in that: Pull blocks (12) are fixedly connected to both sides of the fixed ring (102), and the pull blocks (12) are arranged in an arc shape.

5. A waste sand screening device for precision casting production according to claim 3, characterized in that: A control box (13) is fixedly connected to the front right side of the sieve box (1), and the control box (13) is electrically connected to the dual-axis motor (112) through a wire.

6. The waste sand screening equipment for precision casting production according to claim 3, characterized in that: Limiting blocks (14) are fixedly connected to both sides of the inner wall of the U-shaped plate (111), and the surface of the limiting block (14) is movably connected to the output end of the dual-axis motor (112).

7. The waste sand screening equipment for precision casting production according to claim 1, characterized in that: The inner wall of the U-shaped seat (4) is provided with a sliding groove (15), and the inner side of the movable seat (5) is movably inlaid with a ball (16), and the surface of the ball (16) is movably connected to the inner wall of the sliding groove (15).

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