Adjustable machine-made sand screening device

Abstract

The utility model relates to the technical field of screening devices, in particular to an adjustable machine-made sand screening device which comprises a support, a hopper is fixedly connected to the upper surface of the support, a screening structure is arranged on the inner wall of the support and comprises a screening plate, the screening plate is rotationally connected with the support, an adjusting plate is slidably connected to the inner wall of the screening plate, and the adjusting plate is fixedly connected with the hopper. A plurality of screening holes are formed in the surfaces of the screening plate and the adjusting plate, the lower surface of the screening plate is fixedly connected with a square plate, the surface of the square plate is rotationally connected with a lead screw, the arc surface of the lead screw is in threaded connection with a connecting plate, and the connecting plate is fixedly connected with the adjusting plate. According to the machine-made sand screening machine, by arranging the screening structure, when machine-made sand is screened, after the adjusting plate and the screening holes in the surface of the screening plate are staggered, the screening holes in the surface of the screening plate can be shielded, so that the size of the machine-made sand passing through the screening plate is adjusted, operation is easy and convenient, and the practicability of the screening machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screening device, especially to a kind of adjustable machine-made sand screening device. BACKGROUND

[0002] Machine-made sand is a sand mold material for casting process, usually made of natural quartz sand or synthetic quartz sand, in the production of machine-made sand, in order to make the particles of machine-made sand uniform, it is necessary to use screening machine to screen the machine-made sand.

[0003] The prior art has a patent document with publication number CN217797367U, which discloses a dry process machine-made sand screening device, comprising a screening machine, a feed chute is formed in the upper part of the screening machine, a fixed plate is fixedly installed on the right side of the feed chute of the screening machine, two trapezoidal sliding grooves are horizontally formed on the left side of the feed chute of the screening machine, the patent document, by setting the moving plate and the rectangular slot two of the moving plate, and the fixed plate and the rectangular slot one of the fixed plate, the screening net of the dry process machine-made sand screening device can be separated from the body, which facilitates the operator to replace or clean it, and the screening net can be replaced according to the size of the machine-made sand, greatly saving the screening cost, by setting the pull rod, slide rod, limiting cylinder, spring and moving plate, the dry process machine-made sand screening device can quickly disassemble or install the screening net, greatly improving the work efficiency of the operator, and reducing the labor of the operator.

[0004] The above and prior art has the following defects: due to the fixed structure of the screening net, when the screening size of the screening net needs to be adjusted, only the corresponding type of screening net can be replaced, so a large number of different types of screening nets need to be prepared during the use of the screening machine, resulting in low practicality of the screening machine.

[0005] Therefore, an adjustable machine-made sand screening device is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims to solve the problem that only the corresponding type of screening net can be replaced when the screening size of the screening net needs to be adjusted, and proposes an adjustable machine-made sand screening device.

[0007] In order to achieve the above object, the utility model discloses the following technical scheme: A adjustable mechanism sand screening device, including support, the upper surface of support is fixedly connected with hopper, the inner wall of support is equipped with screening structure, the screening structure includes sieve plate, the sieve plate is rotatably connected with support, the inner wall of sieve plate is slidably connected with adjusting plate, the surface of sieve plate and adjusting plate all is equipped with a plurality of screening holes, the lower surface of sieve plate is fixedly connected with square plate, the surface of square plate is rotatably connected with lead screw, the circular arc surface of lead screw is threadedly connected with connecting plate, the connecting plate is fixedly connected with adjusting plate.

[0008] The effect of the above components is that: by setting the screening structure, when the adjusting plate and the screening holes on the surface of the sieve plate are misaligned during the screening of the mechanism sand, the screening holes on the surface of the sieve plate can be shielded, thereby adjusting the size of the mechanism sand passing through the sieve plate, which is simple and convenient to operate and improves the practicality of the screening machine.

[0009] Preferably, one end of the lead screw is provided with a clamping groove, and the inner wall of the clamping groove is slidably connected with a clamping plate.

[0010] The effect of the above components is that: the clamping plate is inserted into the inner wall of the clamping groove, and then the clamping plate is rotated, which drives the lead screw to rotate, thereby facilitating the rotation of the lead screw.

[0011] Preferably, the surface of the clamping plate is fixedly connected with a rope, and one end of the rope is fixedly connected with the connecting plate.

[0012] The effect of the above components is that: after the clamping plate is taken out of the clamping groove, the rope prevents the clamping plate from being lost.

[0013] Preferably, the inner wall of the support is rotatably connected with a rotating plate.

[0014] The effect of the above components is that: the rotating plate can shield and block the gap between the sieve plate and the support, preventing the un-screened mechanism sand from directly falling through the gap between the sieve plate and the support.

[0015] Preferably, the lower surface of the sieve plate is provided with an adjusting structure, the adjusting structure includes a strip-shaped plate, the strip-shaped plate is fixedly connected with the sieve plate, a plug rod is slidably connected in the strip-shaped plate, the inner wall of the support is fixedly connected with an arc-shaped plate, a plurality of insertion holes are formed in the surface of the arc-shaped plate, and the size of the plug rod is matched with the size of the insertion hole.

[0016] The effect of the above components is that: by setting the adjusting structure, the inclination angle of the sieve plate can be adjusted according to the actual situation during the screening of the mechanism sand, thereby adjusting the sliding speed of the mechanism sand along the surface of the sieve plate, and further improving the flexibility when using the screening machine.

[0017] Preferably, one end of the inserting rod is fixedly connected with a magnetic block, and the strip-shaped plate is an iron plate.

[0018] The magnetic block is attracted to the surface of the strip-shaped plate, the strip-shaped plate limits the position of the magnetic block, thereby preventing the inserting rod and the inserting hole from being separated due to shaking of the support.

[0019] Preferably, the surface of the strip-shaped plate is fixedly connected with a baffle, the vertical section of the baffle is in the shape of L, and the magnetic block is located between the short arm of the baffle and the strip-shaped plate.

[0020] The baffle can limit the sliding distance of the magnetic block, thereby preventing the inserting rod from falling out of the strip-shaped plate.

[0021] Preferably, the circular arc surface of the magnetic block is provided with an anti-skid groove.

[0022] The anti-skid groove increases the friction of the circular arc surface of the magnetic block, thereby facilitating movement of the magnetic block.

[0023] Compared with the prior art, the advantages and positive effects of the utility model lie in that,

[0024] 1、the utility model discloses a screening structure is set up, when the screening hole on the surface of the adjusting plate and the screen plate is misaligned, the screening hole on the surface of the screen plate can be shielded, thereby adjusting the size of the machine-made sand passing through the screen plate, and the practicability of the screening machine is improved.

[0025] 2、the utility model discloses an adjusting structure is set up, in the process of screening the machine-made sand, the inclination angle of the screen plate can be adjusted according to actual conditions, thereby adjusting the sliding speed of the machine-made sand along the surface of the screen plate, and the flexibility when using the screening machine is improved. DRAWINGS

[0026] Figure 1 It is the overall structure schematic diagram of the utility model.

[0027] Figure 2 It is the structure schematic diagram of the support of the utility model.

[0028] Figure 3 It is the structure schematic diagram of the screen plate of the utility model.

[0029] Figure 4 It is the split structure schematic diagram of the screen plate of the utility model.

[0030] Figure 5 It is the structure schematic diagram of the lead screw of the utility model.

[0031] Figure 6 It is the overall structure schematic diagram of the utility model.Figure 1 Partial structure schematic view of the device.

[0032] Legend: 1, support; 2, hopper; 3, screening structure; 31, sieve plate; 32, adjusting plate; 33, square plate; 34, screw rod; 35, connecting plate; 36, clamping groove; 37, clamping plate; 38, rope; 39, rotating plate; 4, adjusting structure; 41, strip plate; 42, inserting rod; 43, arc plate; 44, insertion hole; 45, magnetic block; 46, baffle; 47, anti-skid groove. DETAILED DESCRIPTION

[0033] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0035] As shown in Figures 1-6 The present application provides an adjustable mechanism sand screening device, which comprises a support 1, the upper surface of the support 1 is fixedly connected with a hopper 2, the inner wall of the support 1 is provided with a screening structure 3, and the lower surface of the sieve plate 31 is provided with an adjusting structure 4.

[0036] The specific setting and function of the screening structure 3 and the adjusting structure 4 will be described below.

[0037] As shown in Figures 2-5As shown, the screening structure 3 includes a sieve plate 31, the sieve plate 31 is rotatably connected with the support 1, the inner wall of the sieve plate 31 is slidably connected with an adjusting plate 32, the surfaces of the sieve plate 31 and the adjusting plate 32 are both provided with a plurality of screening holes, the lower surface of the sieve plate 31 is fixedly connected with a square plate 33, the surface of the square plate 33 is rotatably connected with a lead screw 34, the arc surface of the lead screw 34 is threadedly connected with a connecting plate 35, the connecting plate 35 is fixedly connected with the adjusting plate 32, one end of the lead screw 34 is provided with a clamping groove 36, the inner wall of the clamping groove 36 is slidably connected with a clamping plate 37, the clamping plate 37 is inserted into the inner wall of the clamping groove 36, then the clamping plate 37 is rotated, the rotation of the clamping plate 37 drives the lead screw 34 to rotate, the clamping plate 37 achieves the effect of facilitating the rotation of the lead screw 34, the surface of the clamping plate 37 is fixedly connected with a rope 38, one end of the rope 38 is fixedly connected with the connecting plate 35, after the clamping plate 37 is taken out from the clamping groove 36, the rope 38 achieves the effect of preventing the clamping plate 37 from being lost, the inner wall of the support 1 is rotatably connected with a rotating plate 39, the rotating plate 39 can block the gap between the sieve plate 31 and the support 1, preventing the un-screened machine-made sand from directly falling through the gap between the sieve plate 31 and the support 1.

[0038] As shown in Figure 3 and Figure 6 As shown, the adjusting structure 4 includes a strip-shaped plate 41, the strip-shaped plate 41 is fixedly connected with the sieve plate 31, the strip-shaped plate 41 is slidably connected with a plug rod 42, the inner wall of the support 1 is fixedly connected with an arc-shaped plate 43, the surface of the arc-shaped plate 43 is provided with a plurality of plug holes 44, the size of the plug rod 42 is matched with the size of the plug holes 44, one end of the plug rod 42 is fixedly connected with a magnetic block 45, the strip-shaped plate 41 is an iron plate, after the magnetic block 45 is attracted to the surface of the strip-shaped plate 41, the strip-shaped plate 41 achieves the effect of limiting the position of the magnetic block 45, thereby preventing the plug rod 42 and the plug holes 44 from being separated due to the shaking of the support 1, the surface of the strip-shaped plate 41 is fixedly connected with a baffle 46, the vertical section of the baffle 46 is in "L" shape, the magnetic block 45 is located between the short arm of the baffle 46 and the strip-shaped plate 41, the baffle 46 can limit the sliding distance of the magnetic block 45, preventing the plug rod 42 from falling out of the strip-shaped plate 41, the arc surface of the magnetic block 45 is provided with an anti-skid groove 47, the anti-skid groove 47 achieves the effect of increasing the friction of the arc surface of the magnetic block 45, facilitating the movement of the magnetic block 45.

[0039] The whole working principle is that when the manufactured sand needs to be screened, the manufactured sand is poured into the hopper 2, then the manufactured sand falls on the sieve plate 31 through the hopper 2, the sieve plate 31 screens the manufactured sand, when the screening size of the sieve plate 31 needs to be adjusted, the clamping plate 37 is inserted into the inner wall of the clamping groove 36, then the clamping plate 37 is rotated, the rotation of the clamping plate 37 drives the screw rod 34 to rotate, the screw rod 34 drives the connecting plate 35 to move through the thread, the movement of the connecting plate 35 drives the adjusting plate 32 to slide along the inner wall of the sieve plate 31, when the adjusting plate 32 is dislocated with the screening holes on the surface of the sieve plate 31, the screening holes on the surface of the sieve plate 31 can be shielded, so that the size of the manufactured sand passing through the sieve plate 31 is adjusted, the operation is simple and convenient, after the adjustment is completed, the clamping plate 37 is taken out from the clamping groove 36, so that the situation that the screening size of the sieve plate 31 is changed due to the clamping plate 37 being accidentally touched is prevented, the rope 38 prevents the clamping plate 37 from being lost, and the rotating plate 39 can shield and block the gap between the sieve plate 31 and the support 1, so that the situation that the un-screened manufactured sand directly falls through the gap between the sieve plate 31 and the support 1 is prevented.

[0040] When the sliding speed of the manufactured sand along the surface of the sieve plate 31 needs to be adjusted, the magnetic block 45 is pulled away from the strip-shaped plate 41, the magnetic block 45 drives the insertion rod 42 to slide and makes the insertion rod 42 disengage from the insertion hole 44, in this process, the anti-skid groove 47 increases the friction force of the arc surface of the magnetic block 45, so that the magnetic block 45 is conveniently moved, the baffle 46 limits the sliding distance of the magnetic block 45, so that the insertion rod 42 is prevented from falling out of the strip-shaped plate 41, then the sieve plate 31 can be rotated to adjust the inclination degree of the sieve plate 31, by adjusting the inclination degree of the sieve plate 31, the sliding speed of the manufactured sand along the surface of the sieve plate 31 can be changed, the rotation of the sieve plate 31 drives the strip-shaped plate 41 to move, the movement of the strip-shaped plate 41 drives the insertion rod 42 to move, when the sieve plate 31 is rotated to the appropriate angle, the magnetic block 45 is moved to insert the insertion rod 42 into the insertion hole 44, at this time, the arc-shaped plate 43 limits the position of the insertion rod 42, so as to limit the position of the sieve plate 31, the magnetic block 45 is attracted to the surface of the strip-shaped plate 41, the strip-shaped plate 41 limits the position of the magnetic block 45, so as to prevent the insertion rod 42 and the insertion hole 44 from disengaging from each other due to the shaking of the support 1.

[0041] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, any skilled person in the art can change or modify the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. An adjustable manufactured sand screening device comprising a support (1), characterized in that: The upper surface of the support (1) is fixedly connected with a hopper (2), the inner wall of the support (1) is provided with a screening structure (3), the screening structure (3) comprises a sieve plate (31), the sieve plate (31) is rotatably connected with the support (1), the inner wall of the sieve plate (31) is slidably connected with an adjusting plate (32), the surfaces of the sieve plate (31) and the adjusting plate (32) are both provided with a plurality of screening holes, the lower surface of the sieve plate (31) is fixedly connected with a square plate (33), the surface of the square plate (33) is rotatably connected with a lead screw (34), the arc surface of the lead screw (34) is threadedly connected with a connecting plate (35), and the connecting plate (35) is fixedly connected with the adjusting plate (32).

2. An adjustable manufactured sand screening device according to claim 1, characterized in that: One end of the lead screw (34) is provided with a clamping groove (36), and the inner wall of the clamping groove (36) is slidably connected with a clamping plate (37).

3. An adjustable manufactured sand screening apparatus as claimed in claim 2, wherein: The surface of the clamping plate (37) is fixedly connected with a rope (38), and one end of the rope (38) is fixedly connected with the connecting plate (35).

4. An adjustable manufactured sand screening device according to claim 1, characterized in that: The inner wall of the support (1) is rotatably connected with a rotating plate (39).

5. An adjustable manufactured sand screening device according to claim 1, characterized in that: The lower surface of the sieve plate (31) is provided with an adjusting structure (4), the adjusting structure (4) comprises a strip-shaped plate (41), the strip-shaped plate (41) is fixedly connected with the sieve plate (31), the strip-shaped plate (41) is slidably connected with a plug rod (42), the inner wall of the support (1) is fixedly connected with an arc-shaped plate (43), the surface of the arc-shaped plate (43) is provided with a plurality of plug holes (44), and the size of the plug rod (42) is matched with the size of the plug hole (44).

6. An adjustable manufactured sand screening apparatus according to claim 5, wherein: One end of the plug rod (42) is fixedly connected with a magnetic block (45), and the strip-shaped plate (41) is an iron plate.

7. An adjustable manufactured sand screening apparatus according to claim 6, wherein: The surface of the strip-shaped plate (41) is fixedly connected with a baffle (46), the vertical section of the baffle (46) is in the shape of "L", and the magnetic block (45) is located between the baffle (46) and the strip-shaped plate (41).

8. An adjustable manufactured sand screening device according to claim 6, characterized in that: The arc surface of the magnetic block (45) is provided with an anti-skid groove (47).

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