Screening machine for precoated sand production

Abstract

The utility model discloses a precoated sand production screening machine, which relates to the field of precoated sand production and comprises a mounting rack, first springs are welded on the inner wall of the mounting rack, a vibration frame is welded at one end of each first spring, and a second spring is welded on one side of the vibration frame. According to the vibrating screen, the mounting frame is arranged to move the vibrating frame, when the vibrating screen is used, the first spring plays a role in vibrating and rebounding the vibrating frame, the vibrating frequency of the vibrating screen is increased, the screening effect is better, the vibrating frame is arranged to move the movable rod, and when the vibrating screen is used, the vibrating frame is not prone to falling off. According to the pre-coated sand screening device, the first screening frame, the second screening frame and the third screening frame are conveniently and rapidly replaced through the arrangement of a vibration frame and a movable rod, the usability of the device is improved, the vibration frame is clamped and fixed through the arrangement of a splash-proof cover, and when the device is used, splash prevention in the pre-coated sand screening process is facilitated through the arrangement of the splash-proof cover, and the usability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of coated sand production, in particular to a screening machine for producing coated sand. Background Art

[0002] Coated sand, as a commonly used membrane shell forming material in the modern foundry industry, plays an important role in the casting of steel and aluminum alloys. Conventional coated sand uses silica sand as the raw sand. A certain amount of binder, curing agent, dispersant and forming agent are added to the silica sand and stirred under certain temperature conditions. After preparation, it has a block structure due to the action of binders and other chemical substances, so it needs to be crushed and screened after crushing, or particles of a certain size are crushed and screened again if they are not reached. Therefore, a coated sand production screening machine is needed.

[0003] The existing patent document with the technical disclosure number CN219233064U provides a ceramsite sand screening machine, which relates to the field of particle screening technology, and includes a frame and a floating frame arranged on the frame, a screen is fixedly arranged in the floating frame, a support frame is installed on the floating frame, a dividing plate is arranged on the support frame, and the dividing plate is located above the screen. The present application has the effect of reducing the accumulation of ceramsite sand and helping to improve the screening efficiency of the screening machine. However, when the CN219233064U technology is in operation, it is not convenient to quickly replace the screening parts, it is not convenient to prevent splashing during the screening process, the device has a low vibration frequency, and the screening effect is not good. Therefore, a coated sand production screening machine is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a coated sand production screening machine to solve the problems of the existing coated sand production screening machine, which is that it is not convenient to quickly replace the screening parts during use, it is not convenient to prevent splashing during the screening process, the vibration frequency of the device is low, and the screening effect is poor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a coated sand production screening machine, comprising a mounting frame, the inner wall of the mounting frame is welded with a first spring, and one end of the first spring is welded with a vibration frame.

[0006] A second spring is welded on one side of the vibration frame, a movable rod is welded on one end of the second spring, the inner wall of the vibration frame is fixedly connected with a positioning rod, and the outer wall of the positioning rod is fixedly connected with a vibration motor.

[0007] A collecting frame is installed on the inner wall of the vibration frame, a first screening frame is installed on the inner wall of the vibration frame, a second screening frame is installed on the inner wall of the vibration frame, a third screening frame is installed on the inner wall of the vibration frame, and a splash-proof cover is installed on the inner wall of the vibration frame.

[0008] Preferably, the mounting frame is movably connected to the vibration frame, and the inner wall length of the mounting frame is greater than the outer wall length of the vibration frame.

[0009] Preferably, the vibration frame is movably connected to the movable rod, and the movable rod is symmetrically arranged with respect to the central axis of the vibration frame.

[0010] Preferably, the positioning rod is threadedly connected to the vibration motor, and the inner wall of the vibration motor is of open-hole design.

[0011] Preferably, the first screening frame is snap-connected to the vibration frame, and the inner wall of the vibration frame is of slotted design.

[0012] Preferably, the splash-proof cover is snap-connected to the vibration frame, and the length of the outer wall of the splash-proof cover is smaller than the length of the inner wall of the vibration frame.

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

[0014] 1. The utility model provides a mounting frame to activate the vibration frame. When the device is used, the first spring plays a vibration rebound role on the vibration frame, which increases the vibration frequency of the device and achieves a better screening effect.

[0015] 2. The utility model provides a vibration frame to activate the movable rod. When the device is used, the setting of the vibration frame and the movable rod facilitates the rapid replacement of the first screening frame, the second screening frame and the third screening frame, thereby increasing the usability of the device;

[0016] 3. The utility model has a locking and fixing effect on the vibration frame by arranging the splash-proof cover. When the device is in use, the arrangement of the splash-proof cover facilitates the prevention of splashing of the coated sand during the screening process, thereby increasing the usability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a vertical front view of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model with a vertical view and a rear view;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model in vertical and sectional view;

[0020] Figure 4 For this utility model Figure 1 Schematic diagram of the structure with the A part in the middle enlarged.

[0021] In the figure: 1. mounting frame; 2. first spring; 3. vibration frame; 4. second spring; 5. movable rod; 6. positioning rod; 7. vibration motor; 8. collecting frame; 9. first screening frame; 10. second screening frame; 11. third screening frame; 12. splash-proof cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0023] The following describes an embodiment of the utility model based on its overall structure.

[0024] See also Figure 1-4 A coated sand production screening machine includes a mounting frame 1, the inner wall of the mounting frame 1 is welded with a first spring 2, one end of the first spring 2 is welded with a vibration frame 3, the mounting frame 1 is movably connected to the vibration frame 3, and the inner wall length of the mounting frame 1 is greater than the outer wall length of the vibration frame 3. The mounting frame 1 is arranged to activate the vibration frame 3. When the device is in use, the first spring 2 has a vibration rebound effect on the vibration frame 3, which increases the vibration frequency of the device and has a better screening effect.

[0025] See also Figure 1-4 , a coated sand production screening machine, a second spring 4 is welded on one side of the vibration frame 3, and a movable rod 5 is welded on one end of the second spring 4. The vibration frame 3 is movably connected to the movable rod 5, and the movable rod 5 is symmetrically arranged with the central axis of the vibration frame 3. The inner wall of the vibration frame 3 is fixedly connected with a positioning rod 6, and the outer wall of the positioning rod 6 is fixedly connected with a vibration motor 7. The positioning rod 6 is threadedly connected to the vibration motor 7, and the inner wall of the vibration motor 7 is an open-hole design. The movable rod 5 is movable by arranging the vibration frame 3. When using the device, the arrangement of the vibration frame 3 and the movable rod 5 facilitates the rapid replacement of the first screening frame 9, the second screening frame 10 and the third screening frame 11, thereby increasing the usability of the device.

[0026] See also Figure 1-4A screening machine for producing coated sand, a collecting frame 8 is installed on the inner wall of the vibration frame 3, a first screening frame 9 is installed on the inner wall of the vibration frame 3, the first screening frame 9 is connected with the vibration frame 3 by snapping, and the inner wall of the vibration frame 3 is a slotted design, a second screening frame 10 is installed on the inner wall of the vibration frame 3, a third screening frame 11 is installed on the inner wall of the vibration frame 3, a splash-proof cover 12 is installed on the inner wall of the vibration frame 3, the splash-proof cover 12 is connected with the vibration frame 3 by snapping, and the outer wall length of the splash-proof cover 12 is less than the inner wall length of the vibration frame 3, the splash-proof cover 12 is provided to fix the vibration frame 3 by snapping, and when the device is used, the provision of the splash-proof cover 12 facilitates splash prevention during the screening of coated sand, thereby increasing the usability of the device.

[0027] Working principle: when in use, take out the device and place it in the designated position, then thread the positioning rod 6 to fix the vibration motor 7, then press the movable rod 5 to the second spring 4, and lock the collecting frame 8 to the vibration frame 3, and lock the first screening frame 9, the second screening frame 10 and the third screening frame 11 to the vibration frame 3 respectively, and then invert the coated sand inside the third screening frame 11, and then lock and fix the splash-proof cover 12 to the vibration frame 3, and then the second spring 4 contacts the movable rod 5, and the vibration motor 7 is turned on, and the vibration motor 7 drives the vibration frame 3 to vibrate, and the first spring 2 vibrates the vibration frame 3 to rebound, and the coated sand is screened, and finally the movable rod 5 is pressed against the second spring 4, the collecting frame 8 is movable and taken out, and the screened coated sand is taken out, thus completing the use process of the device. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screening machine for producing coated sand, comprising a mounting frame (1), characterized in that: The inner wall of the mounting frame (1) is welded with a first spring (2), and one end of the first spring (2) is welded with a vibration frame (3); A second spring (4) is welded to one side of the vibration frame (3), a movable rod (5) is welded to one end of the second spring (4), the inner wall of the vibration frame (3) is fixedly connected to a positioning rod (6), and the outer wall of the positioning rod (6) is fixedly connected to a vibration motor (7); A collecting frame (8) is installed on the inner wall of the vibration frame (3), a first screening frame (9) is installed on the inner wall of the vibration frame (3), a second screening frame (10) is installed on the inner wall of the vibration frame (3), a third screening frame (11) is installed on the inner wall of the vibration frame (3), and a splash-proof cover (12) is installed on the inner wall of the vibration frame (3).

2. The coated sand production screening machine according to claim 1, characterized in that: The mounting frame (1) is movably connected to the vibration frame (3), and the inner wall length of the mounting frame (1) is greater than the outer wall length of the vibration frame (3).

3. The coated sand production screening machine according to claim 1, characterized in that: The vibration frame (3) is movably connected to the movable rod (5), and the movable rod (5) is symmetrically arranged with respect to the central axis of the vibration frame (3).

4. The coated sand production screening machine according to claim 1, characterized in that: The positioning rod (6) is threadedly connected to the vibration motor (7), and the inner wall of the vibration motor (7) is of an open hole design.

5. The coated sand production screening machine according to claim 1, characterized in that: The first screening frame (9) is snap-fitted and connected to the vibration frame (3), and the inner wall of the vibration frame (3) is of slotted design.

6. The coated sand production screening machine according to claim 1, characterized in that: The splash-proof cover (12) is snap-fitted and connected to the vibration frame (3), and the length of the outer wall of the splash-proof cover (12) is smaller than the length of the inner wall of the vibration frame (3).

Images