Sand screening device
By designing a rotating and reciprocating mechanism to adjust the tilt angle of the screening device and the sliding of the hopper, combined with vibration screening, the problems of inaccurate sand particle size control and accumulation in existing equipment have been solved, achieving efficient sand screening and ensuring that the particle size meets production standards.
Patent Information
- Application Number
- CN202520307790.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing equipment struggles to achieve precise control over sand particle size and uniform screening, resulting in low screening efficiency that fails to meet the requirements of precision casting or high-end glass production. Furthermore, sand tends to accumulate locally on the screening screen, leading to excessive local pressure and hindering thorough screening.
Design a sand screening device. The tilt angle of the screening mechanism is adjusted by a rotating mechanism and a connecting mechanism. Combined with a reciprocating mechanism, the hopper slides back and forth on the top of the screening mechanism to ensure that the sand is evenly distributed. Screening is achieved by the vibration of the vibrating motor and the screen, and the residence time of the sand on the screen is controlled.
It achieves precise control over the particle size of sand, improves screening efficiency and the utilization rate of the screening screen, ensures that the screened sand particle size meets production standards, and avoids local accumulation.
Smart Images
Figure CN223888445U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sand material screening technical field, and specifically, it particularly relates to a sand material screening device. BACKGROUND
[0002] In many fields such as construction, metallurgy and chemical industry, sand material is widely used as a basic material, and different application scenarios have strict requirements on the granularity of sand material, and the granularity of sand material is often uneven in the natural state or after preliminary processing, so that sand material screening device is needed to carry out granularity grading.
[0003] In some precision casting or high-end glass production scenarios with extremely strict requirements on sand material granularity, the residence time of sand material on the screening net needs to be accurately controlled according to the characteristics of different batches of sand material to ensure that the screened sand material granularity completely meets the production standard, but the existing equipment is difficult to realize this fine control, resulting in large deviation of the screened sand material granularity, which cannot meet the production requirements, on the other hand, when the sand material falls on the screening net through the feeding hopper for screening, a large amount of sand material is often accumulated at a certain place of the screening net and cannot be evenly dispersed on the entire surface of the screening net, for example, in the plastic recycling industry, most of the recycled plastic particles are concentrated in the central area of the screening net after entering the screening device through the feeding hopper, causing excessive screening pressure in this area, while the utilization rate of other areas is insufficient, this local accumulation phenomenon makes the sand material cannot be fully screened, and many sand materials meeting the granularity requirements are not effectively separated, greatly reducing the screening efficiency.
[0004] For the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENT
[0005] In view of the problems in the related art, the utility model provides a sand material screening device to overcome the above technical problems existing in the prior art.
[0006] To solve the above technical problems, the utility model is realized by the following technical scheme:
[0007] The utility model relates to a sand material screening device, which comprises a supporting table and a discharge port, the discharge port is fixedly installed at the top of the supporting table, one end of the supporting table is rotatably installed with a rotating mechanism, a clamping mechanism is arranged on the rotating mechanism, the clamping mechanism is clamped between the supporting table, a screening mechanism is rotatably installed at the top of the supporting table, a connecting mechanism is arranged on the screening mechanism, the connecting mechanism is engaged with the rotating mechanism, a hopper is slidably installed at the top of the screening mechanism, a reciprocating mechanism is arranged on the screening mechanism, the reciprocating mechanism is rotatably installed with the screening mechanism, and a screening net is arranged in the screening mechanism.
[0008] Further, the rotating mechanism comprises a rotating shaft rotatably arranged on the support table, a rotating gear fixedly arranged on the outer wall of the rotating shaft, a rudder fixedly arranged on one end of the rotating shaft, and guide blocks symmetrically fixedly arranged on the outer wall of the rotating shaft.
[0009] Further, the clamping mechanism comprises a sliding block slidably arranged on the two guide blocks and the rotating shaft, a plurality of clamping rods fixedly arranged on one end of the sliding block close to the support table, and clamping grooves formed in the support table and matched with the plurality of clamping rods.
[0010] Further, the screening mechanism comprises a connecting frame rotatably arranged on the support table, springs connected to the four corners of the top of the connecting frame, a screening box fixedly arranged on the other ends of the four springs, and a screening net fixedly arranged in the screening box.
[0011] Further, one end of the connecting frame is fixedly arranged with a discharging guide plate below the screening net, one end of the screening box is fixedly arranged with a vibrating motor, and the hopper is slidably arranged on the screening box.
[0012] Further, the connecting mechanism comprises two arc-shaped connecting plates symmetrically fixedly arranged on the two ends of the connecting frame, the two arc-shaped connecting plates are slidably arranged on the support table, an arc-shaped gear strip is fixedly arranged between the two arc-shaped connecting plates, and the arc-shaped gear strip is engaged with the rotating gear.
[0013] Further, the reciprocating mechanism comprises a driving motor fixedly arranged on the screening box, an output shaft fixedly arranged on the output end of the driving motor, and a disc fixedly arranged on the other end of the output shaft.
[0014] Further, a fixed shaft is fixedly arranged on the top of the disc and away from the side of the axis, a pull rod is rotatably arranged on the fixed shaft, and the other end of the pull rod is rotatably arranged on the hopper.
[0015] The utility model has the advantages of the following:
[0016] The sand material is poured into the hopper, the hopper is slidably arranged on the top of the screening mechanism, the reciprocating mechanism starts to operate at this time, the reciprocating mechanism and the screening mechanism are rotatably arranged, the hopper is driven to reciprocally slide on the top of the screening mechanism, the reciprocating movement makes the material in the hopper uniformly fall on the screening net in the screening mechanism, the material is prevented from being accumulated in a certain place of the screening net, and the overall utilization rate and the screening efficiency of the screening net are improved.
[0017] The utility model discloses a staff is with hand rotates the rotating mechanism on the support platform, and rotating mechanism will drive the meshed connecting mechanism to rise or fall subsequently, and the connecting mechanism drives the connecting place of screening mechanism to rise and remove, because one end of screening mechanism is rotatably installed with support platform, then one end of connecting mechanism removes, and the other end will rotate with the connecting point of support platform as the pivot, make the inclination angle of screening mechanism whole change relative to support platform, then the inclination angle of screening net in screening mechanism also changes, so the time of sand material on screening net is prolonged or shortened, that is, the inclination angle is greater and the time is shorter, and the inclination angle is greater and the time is longer, and then realize the control to sand material on screening net length of stay, ensure that the sand material granularity screened is completely in line with production standard.
[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be needed to use the drawing of the embodiment briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.
[0020] Figure 1 It is the three-dimensional structure diagram of the utility model;
[0021] Figure 2 It is the hopper and reciprocating mechanism schematic view of the utility model;
[0022] Figure 3 It is the rotating mechanism of the utility model Figure 1 A enlarged view;
[0023] Figure 4 It is the whole schematic view of the screening mechanism of the utility model;
[0024] Figure 5 It is the whole schematic view of the reciprocating mechanism of the utility model;
[0025] Figure 6 It is the whole schematic view of the rotating mechanism of the utility model.
[0026] In the drawing, the component list represented by each sign is as follows:
[0027] 1, support platform; 101, clamping groove; 2, discharge port; 3, rotating mechanism; 301, rotating shaft; 302, rotating gear; 303, steering; 304, guide block; 4, clamping mechanism; 401, sliding block; 402, clamping rod; 5, screening mechanism; 501, connecting frame; 502, spring; 503, screening box; 505, discharging guide plate; 506, vibration motor; 6, hopper; 7, reciprocating mechanism; 701, drive motor; 702, output shaft; 703, disc; 704, fixed shaft; 705, pull rod; 8, connecting mechanism; 801, arc-shaped connecting plate; 802, arc-shaped gear strip; 9, screening net. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0029] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.
[0030] Please refer to Figures 1-6 The utility model discloses a sand screening device, including support platform 1 and discharge port 2, discharge port 2 is fixedly installed at the top of support platform 1, one end of support platform 1 is rotatably installed with rotating mechanism 3, the rotating mechanism 3 is equipped with clamping mechanism 4, clamping mechanism 4 is clamped between support platform 1, the top of support platform 1 is rotatably installed with screening mechanism 5, screening mechanism 5 is equipped with connecting mechanism 8, and connecting mechanism 8 is engaged between rotating mechanism 3, the top of screening mechanism 5 is slidably installed with hopper 6, screening mechanism 5 is equipped with reciprocating mechanism 7, reciprocating mechanism 7 is rotatably installed with screening mechanism 5, and the inside of screening mechanism 5 is equipped with screening net 9.
[0031] Firstly, before use, because the required screening time of different batches of sand is different, it is necessary to adjust the screening time of the sand. The staff needs to rotate the rotating mechanism 3 on the support table 1 by hand. Then the rotating mechanism 3 will drive the meshing connecting mechanism 8 to rise or fall. The connecting mechanism 8 drives the connection of the screening mechanism 5 to move upward. Since one end of the screening mechanism 5 is rotatably installed with the support table 1, the movement of one end of the connecting mechanism 8 will cause the other end to rotate around the connection point with the support table 1, so that the inclination angle of the screening mechanism 5 relative to the support table 1 changes. Then the inclination angle of the screening net 9 in the screening mechanism 5 changes, so the residence time of the sand on the screening net 9 is extended or shortened. The greater the inclination angle, the shorter the residence time. The greater the inclination angle, the longer the residence time. The specific angle can be adjusted according to the needs, thereby realizing the control of the residence time of the sand on the screening net 9, and ensuring that the particle size of the screened sand completely meets the production standard.
[0032] Secondly, after adjusting the inclination angle, the staff pushes the clamping mechanism 4 on the rotating mechanism 3 towards the support table 1, and locks it with the support table 1. Then the operator can release the clamping mechanism 4. The clamping of the clamping mechanism 4 and the support table 1 locks the rotation of the rotating mechanism 3, and the inclination angle of the screening mechanism 5 is also locked, preventing the screening mechanism 5 from moving downward due to its own gravity after the operator releases the rotating mechanism 3, and changing the inclination angle of the screening net 9.
[0033] Finally, after adjusting the required inclination angle, pour the sand into the hopper 6. The hopper 6 is slidably installed on the top of the screening mechanism 5. At this time, the reciprocating mechanism 7 starts to work. Since the reciprocating mechanism 7 is rotatably installed with the screening mechanism 5, it will drive the hopper 6 to reciprocate on the top of the screening mechanism 5. This reciprocating motion enables the material in the hopper 6 to be evenly scattered on the screening net 9 inside the screening mechanism 5, avoiding the accumulation of material in a certain place of the screening net 9, and improving the overall utilization and screening efficiency of the screening net 9. At the same time, start the screening mechanism 5. The screening mechanism 5 screens by vibration. Then the sand in the hopper 6 will fall onto the screening net 9 in the screening mechanism 5. The screening mechanism 5 vibrates, so that the sand falling onto the screening net 9 is affected by the vibration force. Under the action of vibration, the sand will jump and slide on the screening net 9, constantly contacting and colliding with the screening net 9. The sand smaller than the size of the screening net 9 will fall through the screen hole into the discharge port 2 as undersize material. The sand larger than the size of the screen hole will slide down along the inclination of the screening net 9, thereby completing the screening of the sand.
[0034] In one embodiment, for the above-mentioned screening mechanism 5, the screening mechanism 5 comprises a connecting frame 501, which is rotationally mounted with the support table 1, and four springs 502 are connected to the top corners of the connecting frame 501, and a screening box 503 is fixedly mounted at the other end of the four springs 502, and the screening net 9 is fixedly mounted in the screening box 503.
[0035] One end of the connecting frame 501 is fixedly mounted with a discharging guide plate 505, which is located below the screening net 9, and one end of the screening box 503 is fixedly mounted with a vibrating motor 506, and the hopper 6 is slidingly mounted on the screening box 503.
[0036] The vibrating motor 506 is started to generate high-frequency vibration, and the vibrating motor 506 is fixedly mounted with the screening box 503, and the vibration of the vibrating motor 506 is transmitted to the spring 502 through the screening box 503, and the spring 502 plays a role in buffering and adjusting the vibration frequency and amplitude, so that the screening box 503 stably maintains a vibrating state, the screening net 9 is fixed in the screening box 503 and vibrates with the screening box 503, under the action of vibration, the sand material falling on the screening net 9 will jump and roll on the screening net 9, the sand material smaller than the size of the screen hole will pass through the screen hole and fall, and the sand material larger than the size of the screen hole will slide along the inclination of the screening net 9, and then slide onto the discharging guide plate 505 fixedly mounted with the connecting frame 501, and then fall out of the device through the discharging guide plate 505.
[0037] In one embodiment, for the above-mentioned rotating mechanism 3, the rotating mechanism 3 comprises a rotating shaft 301, which is rotationally mounted on the support table 1, a rotating gear 302 is fixedly mounted on the outer wall of the rotating shaft 301, a rudder 303 is fixedly mounted at one end of the rotating shaft 301, and guide blocks 304 are symmetrically fixedly mounted on the outer wall of the rotating shaft 301.
[0038] The clamping mechanism 4 comprises a sliding block 401, which is slidingly mounted on the two guide blocks 304 and the rotating shaft 301, a plurality of clamping rods 402 are fixedly mounted at one end of the sliding block 401 close to the support table 1, and a clamping groove 101 is formed in the support table 1 and clamped with the plurality of clamping rods 402.
[0039] The connecting mechanism 8 comprises two arc-shaped connecting plates 801, which are symmetrically fixedly mounted at both ends of the connecting frame 501, both the arc-shaped connecting plates 801 are slidingly mounted on the support table 1, an arc-shaped gear strip 802 is fixedly mounted between the two arc-shaped connecting plates 801, and the arc-shaped gear strip 802 is engaged with the rotating gear 302.
[0040] When it is necessary to adjust the screening time of different batches of sand, first of all, the staff rotates the rudder 303 by hand, and then the rudder 303 will drive the rotating shaft 301 to rotate on the support table 1, and then the rotating shaft 301 drives the fixedly installed rotating gear 302 to rotate, the rotation of the rotating gear 302 drives the meshing arc-shaped gear strip 802 to move, the arc-shaped gear strip 802 drives the fixedly installed two arc-shaped connecting plates 801 to move, and then the two arc-shaped connecting plates 801 drive the connecting frame 501 to move, since the two arc-shaped connecting plates 801 are slidably installed on the support table 1, at this time the support table 1 plays a guiding role for the two arc-shaped connecting plates 801, and since the other end of the connecting frame 501 is rotatably installed with the support table 1, then the two arc-shaped connecting plates 801 drive the rising of one end of the connecting frame 501, so that the connecting frame 501 will rotate with the connecting part with the support table 1 as the axis, since the screening box 503 is connected with the connecting frame 501 through the four springs 502, then the screening box 503 will also rotate, and the screening net 9 in the screening box 503 will also rotate, that is, the inclination angle of the screening net 9 changes, so the sliding time of the sand on the screening net 9 is prolonged or shortened, that is, the greater the inclination angle, the shorter the residence time, the greater the inclination angle, the longer the residence time, thereby realizing the control of the residence time of the sand on the screening net 9, and ensuring that the particle size of the screened sand completely meets the production standard.
[0041] Then the staff pushes the sliding block 401 again by hand to move towards the support table 1, and the two guide blocks 304 guide the sliding block 401, and then the sliding block 401 will move with the plurality of clamping rods 402 fixedly installed thereon, and the plurality of clamping rods 402 are clamped into the plurality of clamping grooves 101 formed in the support table 1, so as to limit the rotation of the rotating shaft 301 and the rudder 303, that is, the inclination angle of the screening net 9 will also be locked, thereby preventing the connecting frame 501, the spring 502 and the screening box 503 from moving downward due to their own gravity after the operator loosens the rudder 303, so that the inclination angle of the screening net 9 changes.
[0042] In one embodiment, for the above-mentioned reciprocating mechanism 7, the reciprocating mechanism 7 comprises a driving motor 701 fixedly installed on the screening box 503, and an output shaft 702 fixedly installed at the output end of the driving motor 701, and a disc 703 fixedly installed at the other end of the output shaft 702.
[0043] A fixed shaft 704 is fixedly installed at the top of the disc 703 and away from the side of the axis thereof, a pull rod 705 is rotatably installed on the fixed shaft 704, and the other end of the pull rod 705 is rotatably installed with the hopper 6.
[0044] After the desired inclination angle is adjusted, the driving motor 701 fixedly installed on the screening box 503 starts to work, the output end of the driving motor 701 drives the output shaft 702 to rotate, the disc 703 fixedly installed on the other end of the output shaft 702 rotates along with the disc 703, the fixed shaft 704 fixedly installed on the top of the disc 703 and away from the axis of the disc 703 rotates along with the disc 703, the pull rod 705 rotatably installed on the fixed shaft 704 rotates along with the fixed shaft 704, and the other end of the pull rod 705 is rotatably connected with the hopper 6, due to the connection mode of the two ends of the pull rod 705 and the circular motion of the disc 703, the pull rod 705 drives the hopper 6 to move back and forth linearly on the screening box 503, the operator pours the sand to be screened into the hopper 6 in the moving state, the reciprocating motion of the hopper 6 makes the sand evenly fall on the screening net 9 in the screening box 503, avoids local accumulation of the sand, and improves the utilization rate and screening efficiency of the screening net 9.
[0045] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0046] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the utility model, so that the person skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.
Claims
1. A sand screening device, comprising a support platform (1) and a discharge port (2), characterized in that: The discharge port (2) is fixedly installed on the top of the support platform (1). A rotating mechanism (3) is rotatably installed on one end of the support platform (1). A snap-fit mechanism (4) is provided on the rotating mechanism (3). The snap-fit mechanism (4) is snapped with the support platform (1). A screening mechanism (5) is rotatably installed on the top of the support platform (1). A connecting mechanism (8) is provided on the screening mechanism (5). The connecting mechanism (8) meshes with the rotating mechanism (3). A hopper (6) is slidably installed on the top of the screening mechanism (5). A reciprocating mechanism (7) is provided on the screening mechanism (5). The reciprocating mechanism (7) is rotatably installed with the screening mechanism (5). A screen (9) is provided inside the screening mechanism (5).
2. The sand screening device according to claim 1, characterized in that, The rotating mechanism (3) includes a rotating shaft (301), which is rotatably mounted on the support platform (1). A rotating gear (302) is fixedly mounted on the outer wall of the rotating shaft (301). A rudder (303) is fixedly mounted on one end of the rotating shaft (301). Guide blocks (304) are symmetrically fixedly mounted on the outer wall of the rotating shaft (301).
3. The sand screening device according to claim 2, characterized in that, The locking mechanism (4) includes a sliding block (401), which is slidably mounted on two guide blocks (304) and the rotating shaft (301). Multiple locking rods (402) are fixedly mounted on one end of the sliding block (401) near the support platform (1). The support platform (1) has a locking groove (101) for engaging with the multiple locking rods (402).
4. A sand screening device according to claim 3, characterized in that, The screening mechanism (5) includes a connecting frame (501), which is rotatably installed with the support platform (1). Springs (502) are connected to the four corners of the top of the connecting frame (501), and a screening box (503) is fixedly installed at the other end of the four springs (502). The screening screen (9) is fixedly installed inside the screening box (503).
5. A sand screening device according to claim 4, characterized in that, One end of the connecting frame (501) is fixedly installed with a feeding guide plate (505), and the feeding guide plate (505) is located below the screening screen (9). One end of the screening box (503) is fixedly installed with a vibration motor (506), and the hopper (6) is slidably installed on the screening box (503).
6. A sand screening device according to claim 5, characterized in that, The connecting mechanism (8) includes two arc-shaped connecting plates (801), which are symmetrically fixed at both ends of the connecting frame (501). Both arc-shaped connecting plates (801) are slidably mounted on the support platform (1). An arc-shaped gear rack (802) is fixedly installed between the two arc-shaped connecting plates (801), and the arc-shaped gear rack (802) meshes with the rotating gear (302).
7. A sand screening device according to claim 5, characterized in that, The reciprocating mechanism (7) includes a drive motor (701), which is fixedly mounted on the screening box (503). An output shaft (702) is fixedly mounted on the output end of the drive motor (701), and a disc (703) is fixedly mounted on the other end of the output shaft (702).
8. A sand screening device according to claim 7, characterized in that, A fixed shaft (704) is fixedly installed on the top of the disc (703) and on the side away from its axis. A pull rod (705) is rotatably installed on the fixed shaft (704), and the other end of the pull rod (705) is rotatably installed with the hopper (6).