Vibration pendulum type sand screening machine for casting molding sand
By introducing vibration components and screening components into the vibration and swinging of the screen plate and screening plate, the noise and particle classification of the sand screening machine are solved, and particles are achieved by size effective collection.
Patent Information
- Application Number
- CN202420946056.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing oscillating sand screening machine for cast molding sand produces a lot of noise during the sand screening process, and it is impossible to effectively classify and collect molding sand particles by size, resulting in the problem of reclassification.
A vibration-swing type sand screening machine for cast molded sand including vibration components and screening components is designed. The screen plate and screen plate are driven by the controller to vibrate and swing, and the noise is reduced by using the coordination of the limit block and rubber pads, and the tilt is achieved. The installed screening boards enable the classification of particle size collection.
It effectively reduces the noise of the sand screening machine, avoids the shaking of the screen box, realizes the classification and collection of molded sand particles by size, and solves the problems of noise and reclassification in the original technology.
Smart Images
Figure CN222175844U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of foundry sand screening equipment, in particular to a vibrating sand screening machine for foundry sand. Background Art
[0002] Molding sand is a material used for shaping in casting; molding sand is generally made of raw sand for casting, molding sand binder, auxiliary materials and other molding materials mixed in a certain proportion; before using the casting sand, a sand screening machine is needed to screen the casting sand, which requires the use of a vibrating sand screening machine for casting sand.
[0003] Existing document - CN213134942U A vibrating sand screening machine for foundry sand includes an oil tank, a movable column is movably connected to the top of the oil tank, and three movable columns are provided. The left and right sides of the outer surface of the oil tank are fixedly connected with connecting blocks, and one side of the two connecting blocks is fixedly connected with a support rod. The bottom of the oil tank is fixedly connected with a telescopic column, and the bottom of the telescopic column is fixedly connected with a chassis, and the left and right sides of the outer surface of the chassis are fixedly connected with support blocks, and one side of the support block is fixedly connected with a sleeve column, and the inner surface of the sleeve column is fixedly connected with an annular spring member, and the inner surface of the annular spring member is fixedly connected to the bottom end of the support rod. The utility model can prevent the oil tank from shaking with the vibration of the sand screening cylinder through the cooperation between the annular spring member, the sleeve column, the spring and the sleeve, and can reduce the noise generated during work. At the same time, it can prevent the shaking of the fuselage from affecting the sand screening effect, but it still has the following disadvantages in actual use:
[0004] 1. The above-mentioned vibrating sand screening machine for foundry sand can prevent the oil tank from shaking with the vibration of the sand screening barrel through the cooperation between the annular spring member, the sleeve column, the spring and the sleeve, and can reduce the noise generated when the device is working. However, when the sand screening barrel is working, the vibration of the sand screening barrel can still drive the shaking of the entire device, and at the same time, noise problems will be generated;
[0005] 2. The above-mentioned vibrating sand screening machine for foundry sand cannot classify and collect the foundry sand according to the size of the particles, and further classifies the foundry sand of different types when needed. Utility Model Content
[0006] The purpose of the utility model is to provide a vibrating and swinging sand screening machine for casting sand, which drives the screen plate to vibrate through a vibrating component, and vibrates and swings the casting sand falling on the screen plate, thereby avoiding the situation where the entire screen box vibrates and swings to generate a large noise. The casting sand can be classified and collected through the screening component, thereby solving the problem that the existing vibrating and swinging sand screening machine for casting sand generates a large noise.
[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0008] The utility model discloses a vibrating sand screening machine for foundry sand, comprising a screen box, a controller, a box door, a feeding funnel and a material receiving box. The right side wall of the screen box is provided with a controller, the screen box is connected with the box door through a rotating shaft, a feeding funnel is provided at the top of the screen box, two material receiving boxes are symmetrically provided on the inner wall of the bottom side of the screen box, and the lower side wall of the material receiving box is slidably connected with the screen box, the inner side wall of the screen box is detachably fixedly connected with the guide plate, a vibration component is provided on the inner side wall of the screen box, a screening component is provided on the inner side wall of the screen box, a vibration component is provided just above the guide plate, and the guide plate A screening assembly is arranged directly below; limit blocks are installed at both ends of the screen plate of the vibration assembly, rubber pads are installed at the upper and lower ends of the limit blocks, a fixing block is arranged on the outer wall of the limit block, a supporting plate is installed on the lower side wall of the fixing block, a mounting box is installed directly below the screen plate, and a vibrator is installed on the inner side wall of the mounting box; a screening plate is installed on the inner side wall of the mounting frame of the screening assembly, a fixing plate is installed on the upper side wall of the screening plate, two mounting plates are symmetrically installed on the lower side wall of the mounting frame, a mounting box is installed on the lower side wall of the screening plate, and an oscillator is installed on the inner side wall of the mounting box.
[0009] Furthermore, the inner side wall of the screen box is detachably fixedly connected to the support plate, the upper side wall of the support plate is detachably fixedly connected to the fixing block, and a limiting groove is provided on the right side wall of the fixing block.
[0010] Furthermore, a limiting block is installed in the limiting groove of the fixed block, the fixed block is slidably connected to the limiting block, the right side wall of the limiting block is detachably fixedly connected to the screen plate, and the upper and lower ends of the limiting block are fit-connected to the rubber pad.
[0011] Furthermore, the sieve plate is detachably fixedly connected to the installation box directly below, the inner wall of the installation box is detachably fixedly connected to the vibrator, the input end of the vibrator is electrically connected to the output end of the controller, and the sieve plate is arranged directly above the guide plate, and the sieve plate is W-shaped.
[0012] Furthermore, the inner side wall of the screen box is detachably fixedly connected to the mounting plate, the upper side wall of the mounting plate is fittedly connected to the mounting frame, and the upper side wall of the mounting frame is provided with a mounting groove.
[0013] Furthermore, a screening plate is installed in the installation groove of the installation frame, the installation frame is fitted and connected to the screening plate, and the screening plate is arranged directly below the guide plate.
[0014] Furthermore, the filter holes on the right side of the screening plate are larger than the filter holes on the left side, and the screening plate is installed with the right side tilted downward, and a material receiving box is symmetrically arranged directly below the screening plate.
[0015] Furthermore, the lower side wall of the screening plate is detachably fixedly connected to the mounting box, the inner side wall of the mounting box is detachably fixedly connected to the oscillator, and the input end of the oscillator is electrically connected to the output end of the controller.
[0016] The utility model has the following beneficial effects:
[0017] 1. The utility model provides a vibration component, and the start of the vibrator is controlled on the controller, and the vibrator drives the upper screen plate to vibrate up and down, and the limit blocks on both sides of the two screen plates move up and down in the limit grooves of the fixed blocks, and at the same time, the rubber pads above and below the limit blocks are protected by the limit blocks and the fixed blocks. In the process of vibration of the screen plate, because the screen plate is W-shaped, the molding sand dropped from the upper feeding funnel falls on the inclined surface of the screen plate, and the larger molding sand particles will be bounced up with the vibration of the screen plate and swing back and forth on the inclined surface of the screen plate. The smaller molding sand particles will fall from the filtering holes of the screen plate during the swinging process, and the vibration of the screen box can be avoided while the molding sand is vibrated and screened, causing the problem of noise. The problem is solved that the oil tank can be prevented from shaking with the vibration of the sand screening barrel through the cooperation between the annular spring part, the sleeve column, the spring and the sleeve, and the noise generated when the device is working can be reduced. However, when the sand screening bucket is working, the vibration of the sand screening bucket can still drive the shaking of the entire device, and the noise problem will be generated at the same time.
[0018] 2. The utility model sets a screening component and controls the start of the oscillator on the controller. The oscillator drives the installation box and the upper screening plate to vibrate. After the molding sand falling through the guide plate falls on the screening plate, it will vibrate with the screening plate to avoid clogging of the screening plate by larger molding sand and the situation of hitting the screening plate to cause it to vibrate, thereby increasing the service life of the screening plate. The smaller molding sand particles on the screening plate will fall into the receiving box below for storage. Under the action of gravity, and because the screening plate is installed at an angle, the larger molding sand particles can fall to the right side of the screening plate and fall from the right side with the larger filter hole to be stored in the receiving box below, thereby completing the collection and screening of molding sand particles of different sizes, solving the problem that the molding sand cannot be classified and collected according to the size of the particles, and further classification is required when different types of casting molding sand are needed. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of a vibrating sand screening machine for foundry sand;
[0020] Figure 2 It is a structural cross-sectional view of a vibrating sand screening machine for foundry sand;
[0021] Figure 3 This is a structural exploded view of the vibration assembly;
[0022] Figure 4Exploded view of the screening assembly.
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1. Screen box; 2. Controller; 3. Box door; 4. Feeding funnel; 5. Receiving box; 6. Guide plate; 7. Vibration assembly; 8. Screening assembly; 701. Screen plate; 702. Limit block; 703. Rubber pad; 704. Fixing block; 705. Support plate; 706. Mounting box; 707. Vibrator; 801. Mounting frame; 802. Screening plate; 803. Fixing plate; 804. Mounting plate; 805. Oscillator; 7041. Limiting groove; 8011. Mounting groove. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0026] Embodiment 1
[0027] See also Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a vibrating sand screening machine for foundry sand, comprising a screen box 1, a controller 2, a box door 3, a feeding funnel 4 and a material receiving box 5. The right side wall of the screen box 1 is installed with the controller 2, the screen box 1 is connected with the box door 3 through a rotating shaft, and the top of the screen box 1 is also installed with a feeding funnel 4, which is convenient for adding foundry sand into the screen box 1 and screening the foundry sand. Two material receiving boxes 5 are symmetrically installed on the inner wall of the bottom side of the screen box 1, which is convenient for collecting foundry sand of different sizes, and the lower side wall of the material receiving box 5 is slidably connected with the screen box 1, which is convenient for taking the material receiving box 5;
[0028] The inner wall of the screen box 1 is detachably fixedly connected to the guide plate 6. The inner wall of the screen box 1 is also equipped with a vibration assembly 7, and the guide plate 6 is arranged directly below the vibration assembly 7 to facilitate the diversion of the foundry sand passing through the screen plate 701.
[0029] Limiting blocks 702 are installed at both ends of the sieve plate 701 of the vibration assembly 7, and rubber pads 703 are installed at the upper and lower ends of the limiting block 702. A fixing block 704 is provided on the outer side wall of the limiting block 702, and a supporting plate 705 is installed on the lower side wall of the fixing block 704. A mounting box 706 is installed directly below the sieve plate 701, and a vibrator 707 is installed on the inner side wall of the mounting box 706.
[0030] The inner side wall of the screen box 1 is detachably fixedly connected to the support plate 705, and the support plate 705 plays a supporting role. The upper side wall of the support plate 705 is detachably fixedly connected to the fixed block 704, and the fixed block 704 is fixed to prevent the movement of the fixed block 704. The right side wall of the fixed block 704 is provided with a limiting groove 7041, which is convenient for limiting the limiting block 702 to prevent the limiting block 702 from falling.
[0031] A limiting block 702 is installed in the limiting groove 7041 of the fixed block 704. The fixed block 704 is slidably connected to the limiting block 702 to facilitate the movement of the limiting block 702. The right side wall of the limiting block 702 is detachably fixedly connected to the sieve plate 701, and the upper and lower ends of the limiting block 702 are fitted and connected to the rubber pad 703, and the rubber pad 703 protects the limiting block 702.
[0032] The sieve plate 701 is detachably fixedly connected to the mounting box 706 directly below, and the inner side wall of the mounting box 706 is detachably fixedly connected to the vibrator 707, so that the vibrator 707 can drive the sieve plate 701 to vibrate up and down. The input end of the vibrator 707 is electrically connected to the output end of the controller 2, and the sieve plate 701 is arranged directly above the guide plate 6, so that the casting sand passing through the sieve plate 701 falls on the guide plate 6 under the action of gravity, and the sieve plate 701 is W-shaped, which is convenient for the swing of the casting sand.
[0033] When the above arrangement is in use, the operator adds casting sand from the feeding funnel 4 to the screen box 1, and controls the start of the vibrator 707 on the controller 2. The vibrator 707 drives the upper screen plate 701 to vibrate up and down, and the limit blocks 702 on both sides of the screen plate 701 move up and down in the limit grooves 7041 of the fixed block 704. At the same time, the rubber pads 703 above and below the limit blocks 702 protect the limit blocks 702 and the fixed block 704. During the vibration of the screen plate 701, because the screen plate 701 is W-shaped, the molding sand dropped from the upper feeding funnel 4 falls on the inclined surface of the screen plate 701. The larger molding sand particles will vibrate with the screen plate 701 and will be bounced up, and swing back and forth on the upper inclined surface of the screen plate 701. The smaller molding sand particles will fall from the filtering holes of the screen plate 701 during the swinging process. The vibration of the screen box 1 can be avoided while the molding sand is vibrated and screened, causing noise.
[0034] Embodiment 2
[0035] The difference between the second embodiment and the first embodiment is that the second embodiment further discloses: Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a screening assembly 8 is arranged directly below the guide plate 6 to facilitate screening of the foundry sand falling from the guide plate 6, a screening plate 802 is installed on the inner side wall of the installation frame 801 of the screening assembly 8, a fixing plate 803 is installed on the upper side wall of the screening plate 802, two installation plates 804 are symmetrically installed on the lower side wall of the installation frame 801, a mounting box 706 is installed on the lower side wall of the screening plate 802, and an oscillator 805 is installed on the inner side wall of the mounting box 706;
[0036] The inner side wall of the screen box 1 and the mounting plate 804 can be detachably fixedly connected. The mounting plate 804 plays a supporting role and facilitates the installation of the mounting frame 801. The upper side wall of the mounting plate 804 is fitted and connected with the mounting frame 801. The upper side wall of the mounting frame 801 is provided with a mounting groove 8011 to facilitate the installation of the screening plate 802.
[0037] Install the upper screening plate 802 in the installation groove 8011 of the installation frame 801, and make the installation frame 801 and the screening plate 802 fit and connect, so as to facilitate the installation and removal of the screening plate 802. The screening plate 802 is arranged just below the guide plate 6, so that the foundry sand on the guide plate 6 falls on the upper screening plate 802 under the action of gravity;
[0038] The filter holes on the right side of the screening plate 802 are larger than those on the left side, and the screening plate 802 is installed with the right side tilted downward. A material receiving box 5 is symmetrically arranged directly below the screening plate 802, so as to facilitate the classification and collection of molding sands of different sizes falling from different positions on the screening plate 802.
[0039] The lower side wall of the screening plate 802 is detachably fixedly connected to the mounting box 706, and the inner side wall of the mounting box 706 is detachably fixedly connected to the oscillator 805, so that the oscillator 805 can drive the screening plate 802 to vibrate when working, and the input end of the oscillator 805 is electrically connected to the output end of the controller 2.
[0040] When the above arrangement is in use, the controller 2 controls the start of the oscillator 805, and the oscillator 805 drives the installation box 706 and the upper screening plate 802 to vibrate. After the molding sand that falls through the guide plate 6 falls on the screening plate 802, it will vibrate along with the screening plate 802, thereby avoiding the clogging of the screening plate 802 by larger molding sand, and at the same time avoiding the situation where the screening plate 802 is hit to cause it to vibrate, thereby increasing the service life of the screening plate 802. The smaller molding sand particles on the screening plate 802 will fall into the material receiving box 5 below for storage. Under the action of gravity, and because the screening plate 802 is installed at an angle, the larger molding sand particles can fall to the right side of the screening plate 802, and fall from the right side with the larger filter hole to be stored in the material receiving box 5 below, thereby completing the collection and screening of different molding sand particle sizes.
[0041] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.
Claims
1. A vibrating sand screening machine for foundry sand, comprising a screen box (1), a controller (2), a box door (3), a feeding funnel (4) and a material receiving box (5), wherein the right side wall of the screen box (1) is provided with a controller (2), the screen box (1) is connected to the box door (3) via a rotating shaft, a feeding funnel (4) is provided at the top of the screen box (1), two material receiving boxes (5) are symmetrically provided on the bottom inner wall of the screen box (1), and the lower side wall of the material receiving box (5) is slidably connected to the screen box (1), and the inner side wall of the screen box (1) is detachably fixedly connected to a guide plate (6), characterized in that: The inner wall of the screen box (1) is provided with a vibration assembly (7), the inner wall of the screen box (1) is provided with a screening assembly (8), the vibration assembly (7) is provided directly above the guide plate (6), and the screening assembly (8) is provided directly below the guide plate (6); Limit blocks (702) are installed at both ends of the sieve plate (701) of the vibration assembly (7), and rubber pads (703) are installed at the upper and lower ends of the limit block (702). A fixing block (704) is provided on the outer side wall of the limit block (702), and a support plate (705) is installed on the lower side wall of the fixing block (704). A mounting box (706) is installed directly below the sieve plate (701), and a vibrator (707) is installed on the inner side wall of the mounting box (706); A screening plate (802) is installed on the inner side wall of the installation frame (801) of the screening component (8), a fixing plate (803) is installed on the upper side wall of the screening plate (802), two installation plates (804) are symmetrically installed on the lower side wall of the installation frame (801), a mounting box (706) is installed on the lower side wall of the screening plate (802), and an oscillator (805) is installed on the inner side wall of the mounting box (706).
2. The vibrating sand screening machine for foundry sand according to claim 1, characterized in that: The inner side wall of the screen box (1) is detachably fixedly connected to the support plate (705), the upper side wall of the support plate (705) is detachably fixedly connected to the fixing block (704), and the right side wall of the fixing block (704) is provided with a limiting groove (7041).
3. The vibrating sand screening machine for foundry sand according to claim 1, characterized in that: A limiting block (702) is installed in the limiting groove (7041) of the fixing block (704), the fixing block (704) is slidably connected to the limiting block (702), the right side wall of the limiting block (702) is detachably fixedly connected to the sieve plate (701), and the upper and lower ends of the limiting block (702) are fitted and connected to the rubber pad (703).
4. The vibrating sand screening machine for foundry sand according to claim 1, characterized in that: The sieve plate (701) is detachably fixedly connected to the installation box (706) directly below, the inner wall of the installation box (706) is detachably fixedly connected to the vibrator (707), the input end of the vibrator (707) is electrically connected to the output end of the controller (2), and the sieve plate (701) is arranged directly above the guide plate (6), and the sieve plate (701) is W-shaped.
5. The vibrating sand screening machine for foundry sand according to claim 1, characterized in that: The inner side wall of the screen box (1) is detachably fixedly connected to the mounting plate (804), the upper side wall of the mounting plate (804) is fittedly connected to the mounting frame (801), and the upper side wall of the mounting frame (801) is provided with a mounting groove (8011).
6. The vibrating sand screening machine for foundry sand according to claim 1, characterized in that: A screening plate (802) is installed in the installation groove (8011) of the installation frame (801), the installation frame (801) and the screening plate (802) are closely connected, and the screening plate (802) is arranged directly below the guide plate (6).
7. The vibrating sand screening machine for foundry sand according to claim 1, characterized in that: The filter holes on the right side of the screening plate (802) are larger than the filter holes on the left side, and the screening plate (802) is installed with the right side tilted downward, and a material receiving box (5) is symmetrically arranged directly below the screening plate (802).
8. The vibrating sand screening machine for foundry sand according to claim 1, characterized in that: The lower side wall of the screening plate (802) is detachably fixedly connected to the mounting box (706), the inner side wall of the mounting box (706) is detachably fixedly connected to the oscillator (805), and the input end of the oscillator (805) is electrically connected to the output end of the controller (2).