Screening device for machine-made sand

Abstract

The utility model relates to a machine-made sand screening device which is composed of a box body extending vertically in the length direction, a screen, a cam, a rotating shaft provided with the cam and a motor fixed to the rotating shaft, the screen is installed in the box body in a sliding mode in the vertical direction, the cam is located below the screen, the top of the cam abuts against the screen, and the machine-made sand screening device further comprises a collecting drawer. A baffle is rotationally installed on the box body and located above the screen, a feeding port is formed in the baffle, an installation insertion block is arranged on the baffle, the box body is detachably connected with the installation insertion block, a left passing groove and a right passing groove are formed in the left side and the right side, located on the cam, of the box body correspondingly, and a collecting groove is formed in the box body and located below the left passing groove and the right passing groove; the collecting drawer is slidably installed in the collecting groove in the front-back direction. By the adoption of the scheme, the screening device for the machine-made sand is provided, the motor is started to drive the cam to rotate, so that the screen is shaken up and down, and the machine-made sand located on the screen can be shaken to downwards enter the collecting drawer of the collecting groove.

Description

Technical Field

[0001] The utility model relates to the production of machine-made sand, in particular to a screening device for machine-made sand. Background Art

[0002] Artificial sand refers to sand processed by sand making machines and other ancillary equipment. The finished product is more regular and can be processed into sand of different rules and sizes according to different process requirements, which can better meet daily needs. Artificial sand requires professional equipment to produce qualified and applicable sand and gravel. Screening is a method of separating particle groups according to powder properties such as particle size, specific gravity, charge and magnetism. The operation of using a perforated sieve surface to separate mixed materials of different particle sizes into various particle size grades is called screening.

[0003] Chinese Patent No. CN202122359504.0 discloses an adjustable machine-made sand screening device, which drives a rotating cam to rotate through an output motor, so that the bottom of the movable top plate is squeezed, so that the movable top plate can move upward, and drives the fixed connecting rod and the connecting bottom plate to move upward, squeezing the second force-bearing spring. Under the action of the second force-bearing spring, the connecting bottom plate, the fixed connecting rod and the movable top plate can be driven to move downward, and the bottom of the screening net is repeatedly slapped, thereby cleaning the screening net. However, it is worth noting that the top of the device is open, so the part of the machine-made sand that reaches the upper side of the screening net during the slapping process may be scattered at different positions of the device due to unrestricted falling, causing the machine-made sand to scatter and affect subsequent cleaning and collection. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a screening device for artificial sand, which starts a motor and drives a cam to rotate to achieve the up and down shaking of the screen, so that the artificial sand on the screen can be shaken and then enter downward into the collection drawer of the collection trough.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it is composed of a box body extending vertically in the length direction, a screen, a cam, a rotating shaft equipped with the cam, and a motor fixed to the rotating shaft, the screen is slidably installed in the box body along the up and down directions, the cam is located below the screen and the top is against the screen, and also includes a collecting drawer, the box body is located above the screen and is rotatably installed with a baffle, the baffle is provided with a mounting block, the box body and the mounting block are detachably connected, the box body is respectively provided with a left passing groove and a right passing groove on the left and right sides of the cam, the box body is provided with a collecting groove below the left and right passing grooves, and the collecting drawer is slidably installed in the collecting groove along the front and rear directions.

[0006] The utility model is further configured as follows: the box body is provided with an installation slot on the rotation track of the installation plug-in block, the box body is provided with a limit block protruding from the installation slot, and the installation plug-in block is provided with a limit slot corresponding to the limit block.

[0007] The utility model is further configured as follows: the limit plug block is configured in a step-shaped manner with a narrow upper portion and a wide lower portion.

[0008] The utility model is further configured as follows: it also includes a plurality of springs, the box body is provided with protruding positioning platforms on the left and right sides of the screen, each positioning platform is provided with a matching groove for the screen to slide, the length direction of each spring extends up and down and one end is fixed to the screen and the other end is fixed to the positioning platform.

[0009] The utility model is further configured as follows: the collection drawer includes mounting plates on left and right sides, the box body is provided with mounting grooves corresponding to each mounting plate, each mounting plate is located in the mounting groove and is detachably connected to the box body.

[0010] The utility model is further configured as follows: each of the mounting plates is provided with a positioning block protruding rearward, the box body is provided with a positioning slot corresponding to each positioning block, each positioning block is recessed inwardly with a matching slot, and the box body is located in each positioning slot and is provided with a matching block corresponding to the matching slot.

[0011] The utility model is further configured as follows: the collecting drawer is provided with a guide bar protruding downward, and the box body is provided with a guide groove for inserting the guide bar below the collecting groove.

[0012] The utility model is further configured as follows: a handle is fixedly installed on the front side of the collection drawer.

[0013] By adopting the above technical scheme, 1. Since the box is located above the screen and a baffle is rotatably installed, after the baffle covers the top of the screen, the mounting block of the baffle is detachably connected to the box, so that the baffle can be stably located above the box without the action of external force. Therefore, when the motor is started and the cam is driven to rotate to achieve a cyclical beating of the screen, if the machine-made sand in the screen moves upward, it can be restricted by the baffle and will not jump out from the top of the box, so that it can be stably located in the box and fall downward into the collection drawer; 2. Since the collection drawer is slidably installed in the collection trough along the front and rear directions, the collection drawer can be taken out by moving it forward, and then the machine-made sand that is located on the screen and is beaten and falls can be taken out and cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is an assembly diagram of a specific implementation method of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model from the front to the back;

[0017] Figure 3 A cross-sectional view of another degree from the front to the rear of the present invention;

[0018] Figure 4 A three-dimensional image of the baffle plate flipped upward and the collection drawer slid forward;

[0019] Figure 5 It is a cross-sectional view of the utility model from right to left;

[0020] Figure 6 It is a three-dimensional diagram of the collection drawer in the utility model;

[0021] Figure 7 for Figure 4 A magnified view of middle;

[0022] Figure 8 for Figure 5 Enlarged view of B.

[0023] In the figure: 1-box, 11-left through slot, 12-right through slot, 13-collecting slot, 14-installation slot, 15-limiting plug, 16-positioning platform, 161-matching slot, 17-installation slot, 18-positioning slot, 181-matching plug, 19-guide slot;

[0024] 2-Sieve;

[0025] 3- Cam;

[0026] 4- Rotating shaft;

[0027] 5- Motor;

[0028] 6-collection drawer, 61-mounting plate, 611-positioning plug, 6111-matching slot, 62-guide strip, 63-handle;

[0029] 7- Spring;

[0030] 8- baffle, 81- mounting block, 811- limiting slot. DETAILED DESCRIPTION

[0031] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1-Figure 8 As shown, the utility model discloses a machine-made sand screening device, which is composed of a box body 1 extending vertically in the length direction, a screen 2, a cam 3, a rotating shaft 4 equipped with the cam 3, and a motor 5 fixed to the rotating shaft 4. The screen 2 is slidably installed in the box body 1 along the vertical direction, and the cam 3 is located below the screen 2 and the top is against the screen 2. Since the motor 5 is fixed to the rotating shaft 4, the rotating shaft 4 rotates after the motor 5 is started, thereby realizing the rotation of the cam 3 on the rotating shaft 4. Because the cam 3 is located below the screen 2 and the top is against the screen 2, the motor 5 is fixed to the rotating shaft 4. The cam 3 is against the screen 2, so at this time, as the contact position of the cam 3 and the screen 2 changes, the screen 2 will be pushed upward and fall, that is, it moves in the up and down directions, so that the machine-made sand stuck on the screen 2 is separated from the screen 2 after the screen 2 is shaken. It also includes a collecting drawer 6, the box body 1 is located above the screen 2 and a baffle 8 is rotatably installed, the baffle 8 is provided with a mounting plug 81, the box body 1 and the mounting plug 81 are detachably connected by bolts, buckles, etc., the box 1 is located The left and right sides of the cam 3 are respectively provided with a left through slot 11 and a right through slot 12. The box body 1 is provided with a collecting slot 13 below the left through slot 11 and the right through slot 12. The collecting drawer 6 is slidably installed in the collecting slot 13 along the front-back direction. 1. Since the box body 1 is located above the screen 2 and a baffle 8 is rotatably installed, after the baffle 8 covers the top of the screen 2, the mounting plug 81 of the baffle 8 is detachably connected to the box body 1, so that the baffle 8 can be stably located above the box body 1 without the action of external force. Therefore, when the motor 5 is started and the cam 3 is driven to rotate to achieve a cyclical beating of the screen 2, if the machine-made sand in the screen 2 moves upward, it can be restricted by the baffle 8 and will not jump out from the top of the box body 1, so it can be stably located in the box body 1 and fall downward into the collecting drawer 6; 2. Since the collecting drawer 6 is slidably installed in the collecting groove 13 along the front and rear directions, the collecting drawer 6 can be taken out by moving the collecting drawer 6 forward, and then the machine-made sand that is beaten and falls on the screen 2 can be taken out and cleaned.

[0033] Among them, the box body 1 is provided with an installation slot 14 on the rotation track of the installation block 81, and the box body 1 is provided with a limiting block 15 protruding from the installation slot 14, and the installation block 81 is provided with a limiting slot 811 corresponding to the limiting block 15. When the baffle 8 is rotated downward, the installation block 81 of the baffle 8 will fall on the installation slot 14. Because the box body 1 is provided with a limiting block 15 protruding from the installation slot 14, when the limiting block 15 enters the limiting slot 811 on the installation block 81, in the absence of external force, the installation block 81 of the baffle 8 is restricted by the limiting block 15, making it difficult for the installation block 81 to shake in the left and right directions. Therefore, in the absence of external force, the baffle 8 can be stably located above the box body 1, so that the machine-made sand on the screen 2 after being hit will not go up and out of the box body 1.

[0034] Preferably, the limiting plug 15 is arranged in a stepped shape that is narrow at the top and wide at the bottom. Therefore, after the baffle 8 is flipped downward and the installation plug 81 falls into the installation slot 14, the top of the limiting plug 15, that is, the part with the smallest width, can enter the limiting slot 811 more smoothly. Therefore, the limiting plug 15 in a stepped shape can enter the limiting slot 811 more smoothly, thereby realizing the cooperation between the installation plug 81 of the baffle 8 and the installation slot 14.

[0035] Among them, it also includes a plurality of springs 7, and the box body 1 is protrudingly provided with positioning platforms 16 on the left and right sides of the screen 2, and each of the positioning platforms 16 is provided with a matching groove 161 for the sliding of the screen 2. The length direction of each spring 7 extends up and down, and one end is fixed to the screen 2 by welding or the like, and the other end is fixed to the positioning platform 16 by welding or the like. Since one end of the spring 7 is fixed to the screen 2 and the other end is fixed to the positioning platform 16, the cam 3 is against the bottom of the screen 2 to lift the screen 2 or has a certain contact with the screen 2. When the screen 2 falls compared to the positioning platform 16 due to the gap: 1. the spring 7 can play a buffering role when the screen 2 falls; 2. when the cam 3 applies an upward thrust to the screen 2, it can drive the spring 7 to be stretched and then cooperate with the screen 2 to move upward compared to the positioning platform 16, and when the contact position of the cam 3 and the screen 2 changes and there is a gap between the screen 2 and the cam 3 and the screen 2, when the screen 2 falls compared to the positioning platform 16, the existence of the spring 7 can guide and limit the falling path of the screen 2.

[0036] In addition, the collecting drawer 6 includes mounting plates 61 on left and right sides, and the box body 1 is provided with mounting grooves 17 corresponding to each mounting plate 61. Each mounting plate 61 is located in the mounting groove 17 and is detachably connected to the box body 1 by means of snaps, magnets, etc. Since the mounting plates 61 are detachable from the box body 1, when the starting motor 5 drives the cam 3 to rotate and the screen 2 is shaken up and down, the mounting plates 61 are stably located in the mounting grooves 17, which enables the collecting drawer 6 to be stably located in the mounting grooves 17, and thus the machine-made sand can stably enter the collecting drawer 6 when falling, and then the machine-made sand fallen in the collecting drawer 6 can be cleaned after the collecting drawer 6 is taken out of the box body 1.

[0037] Among them, each of the mounting plates 61 is provided with a positioning block 611 protruding backward, and the box body 1 is provided with a positioning slot 18 corresponding to each positioning block 611, and each positioning block 611 is recessed inward with a matching slot 6111, and the box body 1 is located in each positioning slot 18 and is provided with a matching block 181 corresponding to the matching slot 6111. Since the box body 1 is located in each positioning slot 18 and is provided with a matching block 181, after the collection drawer 6 is completely located in the collection slot 13, the collection drawer 6 is When the mounting plate 61 is inserted into the mounting groove 17, the portion of the positioning block 611 on the mounting plate 61 located at the rear side of the corresponding mating slot 6111 needs to forcibly cross the limit block 15 when entering the corresponding positioning slot 18 so that the mating block 181 can be mated with the mating slot 6111. Therefore, in the absence of external force, the positioning block 611 on the mounting plate 61 can be stably located in the positioning slot 18 and the collection drawer 6 can be stably located in the collection groove 13 in the absence of external force.

[0038] Preferably, the collection drawer 6 is provided with a guide bar 62 protruding downward, and the box body 1 is provided with a guide groove 19 for inserting the guide bar 62 below the collection groove 13. Since the guide bar 62 is located below the collection drawer 6 and the box body 1 is provided with the guide groove 19 below the collection groove 13, the collection drawer 6 can be stably slid forward and backward in the guide groove 19 by making the guide bar 62 stably slide forward and backward in the guide groove 19, thereby enabling the collection drawer 6 to stably slide in the collection groove 13 along the forward and backward direction.

[0039] Preferably, a handle 63 is fixedly installed on the front side of the collection drawer 6 by welding or the like, so that by applying force to the handle 63, force can be applied to the collection drawer 6 to drive the positioning block 611 on the mounting plate 61 to separate from the positioning slot 18 on the box body 1, thereby allowing it to slide back and forth in the collection slot 13.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A screening device for machine-made sand, comprising a box extending vertically in the longitudinal direction, a screen, a cam, a rotating shaft equipped with the cam, and a motor fixed to the rotating shaft, wherein the screen is slidably installed in the box along the vertical direction, and the cam is located below the screen and the top thereof abuts against the screen, and is characterized in that: It also includes a collecting drawer, wherein the box body is located above the screen and is rotatably installed with a baffle, the baffle is provided with a mounting block, the box body and the mounting block are detachably connected, the box body is located on the left and right sides of the cam and is respectively provided with a left passing groove and a right passing groove, the box body is provided with a collecting groove below the left passing groove and the right passing groove, and the collecting drawer is slidably installed in the collecting groove along the front and rear directions.

2. The machine-made sand screening device according to claim 1, characterized in that: The box body is provided with an installation slot on the rotation track of the installation plug block, the box body is provided with a limit plug block protruding from the installation slot, and the installation plug block is provided with a limit slot corresponding to the limit plug block.

3. The machine-made sand screening device according to claim 2, characterized in that: The limiting plug block is arranged in a stepped shape with a narrow top and a wide bottom.

4. The machine-made sand screening device according to claim 1, characterized in that: It also includes a number of springs. The box body is provided with protruding positioning platforms on the left and right sides of the screen. Each positioning platform is provided with a matching groove for the screen to slide. The length direction of each spring extends up and down and one end is fixed to the screen and the other end is fixed to the positioning platform.

5. The machine-made sand screening device according to claim 1, characterized in that: The collection drawer comprises mounting plates on left and right sides, and the box body is provided with mounting grooves corresponding to each mounting plate, and each mounting plate is located in the mounting groove and is detachably connected to the box body.

6. The machine-made sand screening device according to claim 5, characterized in that: Each mounting plate is provided with a positioning block protruding backwards, and the box body is provided with a positioning slot corresponding to each positioning block. Each positioning block is recessed inwardly with a matching slot, and the box body is provided with a matching block corresponding to each matching slot in each positioning slot.

7. The machine-made sand screening device according to claim 6, characterized in that: The collecting drawer is provided with a guide bar protruding downward, and the box body is provided with a guide groove for inserting the guide bar below the collecting groove.

8. The machine-made sand screening device according to claim 7, characterized in that: A handle is fixedly installed on the front side of the collection drawer.

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