Foundry sand impurity separating and screening device
By employing multiple screens with decreasing mesh sizes and a vibration mechanism in the foundry sand impurity separation device, the problems of poor screening effect and low rate of existing devices have been solved, achieving high-precision screening and multi-stage collection, and improving screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-31
AI Technical Summary
Existing casting sand impurity separation devices have poor screening effects and low screening rates, making it impossible to effectively classify and collect impurities.
A screening device with multiple screens of decreasing mesh size is used, combined with a vibration mechanism to improve screening accuracy and achieve multi-stage collection. The swaying of the screening device is achieved through the cooperation of cams and springs to improve the screening rate.
It improves the screening accuracy and screening rate of foundry sand, and realizes the efficient collection of multi-stage impurities, which facilitates subsequent processing.
Smart Images
Figure CN224058644U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to screening device technical field especially relates to a casting sand impurity separation screening device. BACKGROUND
[0002] Casting sand is a kind of granular refractory material used to prepare sand and core sand in casting production. In the case of using clay as sand binder, about 1 ton of new sand is needed to supplement for every 1 ton of qualified castings, so the use amount of casting sand is the largest in sand casting production.
[0003] The screening device for separating impurities in casting sand in the prior art generally only uses one screen for screening, which has poor screening effect and cannot collect the screened impurities in stages, causing certain inconvenience to people, and the existing screening device generally does not have a device for vibrating the screen, so that the screening rate of the screen for casting sand is low. UTILITY MODEL CONTENT
[0004] The utility model discloses a casting sand impurity separation screening device, which can solve the problems in the prior art, and has the advantages of high screening accuracy, multi-stage collection of screened casting sand and convenience for subsequent processing.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A casting sand impurity separation screening device, comprising a shell, two symmetrical support plates are arranged at the lower end of the shell, an inlet frame is arranged at the upper end of the shell, a plurality of equidistantly arranged through grooves are formed in the two sides of the shell, a horizontal plate is arranged through the two through grooves, the two ends of the horizontal plate are inclined, two symmetrical through grooves are formed in the horizontal plate, a screen is arranged in the through groove, the mesh size of the screens is gradually reduced, a connecting mechanism is arranged in the shell for connecting the horizontal plates, and a collecting mechanism is arranged on the outer wall of the shell for collecting casting sand.
[0007] Preferably, the connecting mechanism comprises a plurality of equidistantly arranged limiting rods arranged on the inner wall of the shell, a plurality of connecting plates are slidably connected to the outer walls of the limiting rods, and the lower ends of the horizontal plates are connected to the connecting plates.
[0008] Preferably, the collecting mechanism comprises a plurality of equidistantly arranged material receiving frames arranged on the outer walls of the two sides of the shell, and the material receiving frames are arranged below the through grooves.
[0009] Preferably, a rotating rod is rotatably connected through the lower end of the housing, and the outer wall of the rotating rod is provided with a plurality of cams arranged at equal intervals, and the outer walls of the plurality of cams are respectively connected to the side walls of a plurality of connecting plates.
[0010] Preferably, a power motor is provided at the lower end of the housing, and the lower end of the rotating rod is connected to the end of the output shaft of the power motor.
[0011] Preferably, the connecting plate is elastically connected to the inner wall of the housing by two springs, and the springs are sleeved on the outer wall of the limiting rod.
[0012] The beneficial effects of this utility model are:
[0013] 1. By utilizing multiple screens within the casing, and with the screen mesh sizes decreasing in that order, multiple screens can be used to classify and screen foundry sand, improving screening accuracy. At the same time, the multiple receiving frames enable multi-stage collection of the screened material, providing convenience for subsequent processing.
[0014] 2. By having the cam push the connecting plate and the horizontal plate to move, and then through the elastic action of the two springs between the connecting plate and the inner wall of the shell, the horizontal plate moves back and forth between the two through slots, thereby realizing the shaking of the casting sand and improving the screening rate. Attached Figure Description
[0015] Fig. 1 This is a front view schematic diagram of the overall structure of this utility model;
[0016] Fig. 2 This is a bottom view of the overall structure of this utility model;
[0017] Fig. 3 This is a cross-sectional schematic diagram of the overall structure of this utility model.
[0018] In the diagram: 1. Shell, 2. Support plate, 3. Feed frame, 4. Receiving frame, 5. Through groove, 6. Horizontal plate, 7. Screen, 8. Baffle, 9. Power motor, 10. Connecting plate, 11. Rotating rod, 12. Cam, 13. Limiting rod, 14. Spring. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] Reference Figs. 1-3 A casting sand impurity separation and screening device includes a shell 1. Two symmetrically arranged support plates 2 are provided at the lower end of the shell 1. A feed frame 3 is provided through the upper end of the shell 1. Multiple equally spaced through slots 5 are provided on both sides of the shell 1. A horizontal plate 6 is provided between each pair of opposite through slots 5. The ends of the horizontal plate 6 are inclined. Two symmetrically arranged through slots are provided on the horizontal plate 6. Screens 7 are provided in the through slots. The mesh sizes of the multiple screens 7 are arranged in decreasing order. By utilizing the multiple screens 7 within the shell 1 and the decreasing mesh sizes of the multiple screens 7, the casting sand can be graded and screened, improving screening accuracy. Simultaneously, the multiple receiving frames 4 enable multi-stage collection of the screened sand, providing convenience for subsequent processing.
[0022] The housing 1 is provided with a connecting mechanism for connecting multiple horizontal plates 6. The connecting mechanism includes multiple pairs of equidistant limiting rods 13 arranged on the inner wall of the housing 1. The outer walls of the multiple pairs of limiting rods 13 are slidably connected to a connecting plate 10. The multiple connecting plates 10 are respectively connected to the lower ends of the multiple horizontal plates 6.
[0023] The outer wall of the shell 1 is provided with a collection mechanism for collecting casting sand. The collection mechanism includes multiple receiving frames 4 arranged at equal intervals on both sides of the outer wall of the shell 1. The multiple receiving frames 4 are located below multiple through slots 5 respectively.
[0024] A rotating rod 11 is rotatably connected to the lower end of the housing 1. The outer wall of the rotating rod 11 is provided with multiple cams 12 arranged at equal intervals. The outer walls of the multiple cams 12 are respectively connected to the side walls of multiple connecting plates 10. By pushing the connecting plates 10 and the horizontal plate 6 with the cams 12, and under the elastic action of the two springs 14 between the connecting plates 10 and the inner wall of the housing 1, the horizontal plate 6 moves back and forth between the two through slots 5, thereby realizing the shaking of the casting sand and improving the screening rate.
[0025] The lower end of the housing 1 is equipped with a power motor 9, and the lower end of the rotating rod 11 is connected to the end of the output shaft of the power motor 9.
[0026] The connecting plate 10 is elastically connected to the inner wall of the housing 1 by two springs 14, and the springs 14 are sleeved on the outer wall of the limiting rod 13.
[0027] In use, when screening impurities in foundry sand, the foundry sand enters the housing 1 through the feed frame 3. Multiple screens 7 within the housing 1, with decreasing mesh sizes, grade the foundry sand, improving screening accuracy. Multiple receiving frames 4 facilitate multi-stage collection of the screened sand, providing convenience for subsequent processing. The power motor 9 drives the rotating rod 11, causing multiple cams 12 on the outer wall of the rotating rod 11 to rotate. The sliding connection between the outer wall of the cams 12 and the side wall of the connecting plate 10, and the sliding connection between the connecting plate 10 and the limiting rod 13, pushes the connecting plate 10 and the horizontal plate 6 to move. The horizontal plate 6 reciprocates between the two through slots 5 under the elastic action of two springs 14 between the connecting plate 10 and the inner wall of the housing 1, thus agitating the foundry sand and increasing the screening rate.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A foundry sand impurity separation and screening apparatus comprising a housing (1), characterised in that, The lower end of the shell (1) is provided with two symmetrical support plates (2), the upper end of the shell (1) is provided with a feeding frame (3), the both sides of the shell (1) are provided with a plurality of equidistantly arranged through grooves (5), the opposite two through grooves (5) are provided with a horizontal plate (6), the both ends of the horizontal plate (6) are inclinedly arranged, the horizontal plate (6) is provided with two symmetrical through grooves, the through grooves are provided with a screen (7), a plurality of screen (7) meshes are arranged in a decreasing manner, the shell (1) is provided with a connecting mechanism for connecting a plurality of horizontal plates (6), and the outer wall of the shell (1) is provided with a collecting mechanism for collecting cast sand.
2. A foundry sand impurity separation and sizing apparatus according to claim 1, wherein, The connecting mechanism comprises a plurality of equidistantly arranged limiting rods (13) arranged on the inner wall of the shell (1), and a plurality of connecting plates (10) are slidably connected to the outer walls of the plurality of limiting rods (13).
3. A foundry sand impurity separation and sizing apparatus according to claim 2, wherein, The collecting mechanism comprises a plurality of equidistantly arranged receiving frames (4) arranged on the outer walls of the both sides of the shell (1), and the plurality of receiving frames (4) are located below the plurality of through grooves (5).
4. A foundry sand impurity separation and sizing apparatus as defined in claim 3 wherein, The lower end of the shell (1) is provided with a rotating rod (11), the outer wall of the rotating rod (11) is provided with a plurality of equidistantly arranged cams (12), and the outer walls of the plurality of cams (12) are connected to the side walls of the plurality of connecting plates (10).
5. A foundry sand impurity separation and sizing apparatus as defined in claim 4 wherein, The lower end of the shell (1) is provided with a power motor (9), and the lower end of the rotating rod (11) is connected to the lower end of the output shaft of the power motor (9).
6. A foundry sand impurity separation and sizing apparatus according to claim 5, wherein, The connecting plate (10) and the inner wall of the shell (1) are elastically connected by two springs (14), and the spring (14) is sleeved on the outer wall of the limiting rod (13).