A sand and gravel shaping device

Abstract

The utility model discloses a sand and gravel shaping device, comprising a shaping cylinder, a dust collecting box, a lifting mechanism and a screen. The shaping cylinder is used to shape sand and gravel, and a feeding port is provided at the top of the shaping cylinder and a discharging port is provided at the bottom. The top of the dust collecting box is open. The top of the dust collecting box and the bottom of the shaping cylinder are connected by a lifting mechanism, so that the shaping cylinder can be close to or away from the dust collecting box, so that the shaping cylinder and the dust collecting box can be connected in a closed manner, or a screen gap is formed between the shaping cylinder and the dust collecting box. The screen is used to screen sand and gravel of different size ranges, and the screen can be detachably placed in the screen gap. The utility model can solve the problem that the existing sand and gravel shaping device cannot timely take out sand and gravel of the required size after screening, and cannot timely and effectively clean the screen.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and stone processing, in particular to a sand and stone shaping device. Background Art

[0002] Sand and gravel refer to a loose mixture of sand particles and crushed stone. The structures of different sand and gravel vary greatly. Some have uniform particles, some have different sizes, some have very well rounded debris, and some have sharp edges. Sand and gravel are loose materials, but their particles are generally hard, and their chemical properties are stable under the surface environment. Currently, in the sand and gravel production process, it is necessary to use shaping equipment for sand and gravel production to shape the sand and gravel, and then screen them to get sand and gravel materials that meet the size requirements.

[0003] Existing shaping devices generally use crushing rollers that are arranged in pairs and rotate in opposite directions to crush and shape sand and gravel, and then use a screen to screen the shaped sand and gravel to obtain sand and gravel materials that meet the size above the screen.

[0004] However, the above-mentioned types of sand and gravel shaping devices generally have the following problems: (1) After screening, it is impossible to remove the sand and gravel that meet the size in time and effectively clean the screen, which makes the screen easy to get blocked and affects the subsequent screening; (2) During the shaping process, it is very easy to cause debris to splash or dust to fly. Utility Model Content

[0005] The utility model aims to provide a sand and gravel shaping device, which can solve the problem that the existing sand and gravel shaping device cannot timely take out sand and gravel of the required size after screening, and cannot timely and effectively clean the screen.

[0006] The utility model is realized by the following technical solutions:

[0007] A sand and gravel shaping device comprises a shaping cylinder, which is used to shape sand and gravel, and has a feed port on the top and a discharge port on the bottom; a dust box, which has an open top; a lifting mechanism, through which the top of the dust box and the bottom of the shaping cylinder are connected, so that the shaping cylinder can approach and move away from the dust box, so that the shaping cylinder and the dust box can be connected in a closed manner, or a mesh gap is formed between the shaping cylinder and the dust box; and a screen, which is used to screen sand and gravel of different size ranges, and the screen can be detachably placed in the mesh gap.

[0008] Optionally, the lifting mechanism includes a plurality of limit columns and rotating rings, the limit columns are vertically arranged, the top ends of the limit columns are connected to the bottom ends of the shaping cylinders, and the bottom ends are slidably connected to the top ends of the dust collecting box; the lower portion of the shaping cylinders is cylindrical and has an external thread, the rotating ring is mounted on the outside of the lower portion of the shaping cylinders and is screwed to the shaping cylinders via internal threads, and the rotating ring is rotatably connected to the top ends of the dust collecting box; a first handle is provided on the outer wall of the rotating ring.

[0009] Optionally, the rotating ring rotates 90° or 180°, and the shaping cylinder descends from an initial position to contact and be tightly connected with the dust box, so that the screen is clamped between the shaping cylinder and the dust box.

[0010] Optionally, the limiting column is provided with a return spring, and the return spring is embedded in the top of the dust box, the top end of the return spring is connected to the limiting column, and the bottom end is in contact with and pressed against the dust box.

[0011] Optionally, it also includes an opening and closing mechanism, which is arranged in the dust box and is used to open or close the top of the dust box; the dust box is connected to a negative pressure machine.

[0012] Optionally, the opening and closing mechanism includes a base plate, a turntable and a control mechanism, and the base plate is coaxially connected to the turntable; the opening and closing mechanism is arranged in the dust box, and the outer wall of the base plate is tightly connected to the inner wall of the dust box; the base plate is provided with a plurality of first through holes along the thickness direction, and the turntable is provided with a plurality of second through holes correspondingly; when the turntable is rotated to a closed angle, the turntable can close all the first through holes, and the base plate can close all the second through holes; when the turntable is rotated to an open angle, each of the first through holes overlaps and is connected with the corresponding second through hole; the control mechanism is used to control the turntable to rotate to the closed angle or the open angle.

[0013] Optionally, a return torsion spring is mounted at the rotation connection between the turntable and the base plate; when the return torsion spring is in a natural state, the turntable is located at the closed angle.

[0014] Optionally, the control mechanism includes an extrusion ring and a plurality of convex slopes; all of the convex slopes are evenly arranged in a ring shape on the top of the turntable; the top surface of the extrusion ring is connected to the bottom ends of all of the limit columns, and the bottom surface is evenly arranged in a ring shape with a plurality of pressure blocks, and the pressure blocks correspond to the convex slopes one by one, and the pressure blocks are used to extrude the corresponding convex slopes from top to bottom so that the turntable can be rotated from the closed angle to the open angle.

[0015] Optionally, the feed port is provided with a dust-proof mechanism, which includes: a fixed ring, which is arranged at the top of the shaping cylinder, and the inner diameter of the fixed ring matches the feed port; a rotating ring, which is coaxially arranged with the fixed ring and rotatably connected, and the inner wall of the rotating ring is provided with a rack; a plurality of gears arranged in a ring shape, the gears are arranged on the fixed ring, and the gears are meshed with the rack; a plurality of rotating blades, the rotating blades correspond to and are connected to the gears one by one, the free ends of the rotating blades are bent in an arc, the rotating blades are in the shape of sheets, and two adjacent rotating blades are partially overlapped; when the rotating ring is rotated to a closed position, the rotating blades are rotated inward to close the feed port; when the rotating ring is rotated to an open position, the rotating blades are rotated outward to open the feed port.

[0016] Optionally, the shaping cylinder is provided with a plurality of pairs of crushing rollers from top to bottom, and each pair of the crushing rollers are arranged in parallel to form a shaping gap between the two crushing rollers; and the straight lines where two adjacent pairs of the crushing rollers are located are arranged crosswise.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] The utility model provides a sand and stone shaping device, which crushes and shapes sand and stone by setting a shaping cylinder, pours sand and stone materials from a feeding port, and discharges the shaped mixed material from a discharging port; by setting a screen, the mixed material discharged from the discharging port is screened, so that sand and stone with the right size are contained above the screen, while crushed stone and debris with smaller size are screened under the screen; by setting a dust collecting box, the crushed stone and debris falling from the screening are collected; on this basis, by setting a lifting mechanism, the shaping cylinder and the dust collecting box are connected through the lifting mechanism, so that the shaping cylinder and the dust collecting box can be close to or far away from each other, so that the two are connected or communicated in a closed manner. A mesh gap is formed between the two. When screening is completed, the shaping cylinder is lifted by the lifting mechanism, and then the screen together with the sand and gravel of the appropriate size are horizontally taken out from the mesh gap, so that the sand and gravel of the appropriate size can be obtained in time, and then the screen can be cleaned in time and effectively. After cleaning, it is horizontally placed in the mesh gap, and then the shaping cylinder is controlled to fall to be airtightly connected with the dust collecting box by the lifting mechanism. Through the mutual cooperation of the above-mentioned features, the sand and gravel shaping device can effectively solve the problem that the existing sand and gravel shaping device cannot take out the sand and gravel of the appropriate size in time after screening, and cannot clean the screen in time and effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0020] Figure 1 A schematic diagram of a sand and gravel shaping device provided in an embodiment of the utility model;

[0021] Figure 2 A half-section schematic diagram of a sand and gravel shaping device provided in an embodiment of the utility model;

[0022] Figure 3 A partial cross-sectional view of the lifting mechanism of the sand and gravel shaping device provided in an embodiment of the utility model;

[0023] Figure 4 A schematic top view of a dust collecting box of a sand and gravel shaping device provided in an embodiment of the utility model;

[0024] Figure 5 A schematic top view of the opening and closing mechanism of the sand and gravel shaping device provided in an embodiment of the utility model;

[0025] Figure 6 A bottom view schematic diagram of an extrusion ring of a sand and gravel shaping device provided in an embodiment of the utility model;

[0026] Figure 7 A schematic diagram of the action of the convex slope and the pressing block of the sand and gravel shaping device provided in an embodiment of the utility model;

[0027] Figure 8 A schematic top view of the dust prevention mechanism of the sand and gravel shaping device provided in an embodiment of the utility model.

[0028] Marks and corresponding parts names in the attached drawings:

[0029] 10-shaping cylinder; 11-feeding port; 12-discharging port; 20-dust collecting box; 30-screen; 40-limiting column; 41-rotating ring; 411-first handle; 42-reset spring; 44-convex slope; 50-negative pressure machine; 60-base plate; 601-first through hole; 61-rotating plate; 611-second through hole; 62-reset torsion spring; 63-extrusion ring; 631-pressing block; 70-fixed ring; 71-rotating ring; 711-second handle; 72-gear; 73-rotating blade; 80-crushing roller. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0031] Example

[0032] Please refer to Figures 1 to 8The present embodiment provides a sand and gravel shaping device, comprising a shaping cylinder 10, the shaping cylinder 10 is used to shape sand and gravel, the shaping cylinder 10 is provided with a feed port 11 at the top and a discharge port 12 at the bottom; the second comprises a dust box 20, the top of the dust box 20 is open; the third comprises a lifting mechanism, the top of the dust box 20 and the bottom of the shaping cylinder 10 are connected by the lifting mechanism, so that the shaping cylinder 10 can approach and or move away from the dust box 20, so that the shaping cylinder 10 and the dust box 20 can be connected in a closed manner, or a mesh gap is formed between the shaping cylinder 10 and the dust box 20; the fourth comprises a screen 30, the screen 30 is used to screen sand and gravel of different size ranges, and the screen 30 can be detachably placed in the mesh gap.

[0033] The sand and gravel shaping device provided in the present embodiment crushes and shapes sand and gravel by setting a shaping cylinder 10, the sand and gravel materials are poured in from the feed port 11, and the shaped mixture is discharged from the discharge port 12; the mixture discharged from the discharge port 12 is screened by setting a screen 30, so that sand and gravel of the right size are placed above the screen 30, while the crushed stones and debris of smaller size are screened under the screen; the crushed stones and debris falling from the screening are collected by setting a dust box 20; on this basis, a lifting mechanism is set, and the shaping cylinder 10 and the dust box 20 are connected by the lifting mechanism, so that the shaping cylinder 10 and the dust box 20 can be close to or away from each other, so that the two are close. The screen 30 is then cleaned promptly and effectively, and after cleaning, it is horizontally placed in the net gap, and then the shaping cylinder 10 is controlled by the lifting mechanism to fall until it is tightly connected with the dust collecting box 20; through the mutual cooperation of the above-mentioned features, the sand and gravel shaping device can effectively solve the problem that the existing sand and gravel shaping device cannot take out the sand and gravel of the size in time after screening, and cannot clean the screen in time and effectively.

[0034] In order to further explain the specific structure of the lifting mechanism, the lifting mechanism includes a plurality of limit columns 40 and a rotating ring 41. The limit column 40 is vertically arranged, the top end of the limit column 40 is connected to the bottom of the shaping cylinder 10, and the bottom end is slidably connected to the top of the dust box 20; the lower part of the shaping cylinder 10 is set to be cylindrical and has an external thread, the rotating ring 41 is mounted on the outside of the lower part of the shaping cylinder 10, and is screwed to the shaping cylinder 10 through an internal thread, and the rotating ring 41 is rotatably connected to the top of the dust box 20; the outer wall of the rotating ring 41 is provided with a first handle 411.

[0035] By pulling the first handle 411 , the rotating ring 41 can be driven to rotate in a certain direction, thereby driving the shaping cylinder 10 to move up and down.

[0036] Preferably, the rotating ring 41 rotates 90° or 180°, and the shaping cylinder 10 descends from the initial position to contact and be in close communication with the dust box 20 , so that the screen 30 is clamped between the shaping cylinder 10 and the dust box 20 .

[0037] In order to offset the weight of the shaping cylinder 10 to a certain extent, the limit column 40 is equipped with a return spring 42, and the return spring 42 is embedded in the top of the dust box 20. The top end of the return spring 42 is connected to the limit column 40, and the bottom end contacts and squeezes the dust box 20.

[0038] In order to open the dust box 20 after the shaping cylinder 10 and the dust box 20 are tightly connected to prevent the dust accumulated in the dust box 20 from flying away, the above-mentioned sand and gravel shaping device also includes an opening and closing mechanism, which is arranged in the dust box 20 and is used to make the top of the dust box 20 open or closed; the dust box 20 is connected to a negative pressure machine 50.

[0039] By providing the negative pressure machine 50 , during the screening process, the negative pressure machine 50 is used to continuously create a negative pressure environment in the dust collecting box 20 to absorb the debris and dust dropped by the screening.

[0040] In order to further explain the specific structure of the opening and closing mechanism, the opening and closing mechanism includes a base plate 60, a turntable 61 and a control mechanism, the base plate 60 is coaxially rotatably connected with the turntable 61; the opening and closing mechanism is arranged in the dust box 20, and the outer wall of the base plate 60 is tightly connected with the inner wall of the dust box 20; the base plate 60 is provided with a plurality of first through holes 601 through it along the thickness direction, and the turntable 61 is provided with a plurality of second through holes 611 correspondingly; when the turntable 61 is rotated to a closed angle, the turntable 61 can close all the first through holes 601, and the base plate 60 can close all the second through holes 611; when the turntable 61 is rotated to an open angle, each of the first through holes 601 overlaps and is connected with the corresponding second through hole 611; the control mechanism is used to control the turntable 61 to rotate to the closed angle or the open angle.

[0041] With the above arrangement, when the shaping cylinder 10 is lowered to be in close communication with the dust box 20 , the rotary disk 61 is controlled to rotate a certain angle so that the second through hole 611 is aligned and communicated with the first through hole 601 , thereby connecting the dust box 20 with the shaping cylinder 10 .

[0042] In order to realize the normal reset of the rotary disk 61 and ensure that the dust box 20 is in a closed state under normal conditions, a reset torsion spring 62 is installed at the rotation connection between the rotary disk 61 and the base plate 60; when the reset torsion spring 62 is in a natural state, the rotary disk 61 is located at the closed angle.

[0043] In order to further explain the specific structure of the control mechanism, the control mechanism includes an extrusion ring 63 and a plurality of convex slopes 44; all of the convex slopes 44 are evenly arranged in a ring shape on the top of the turntable 61; the top surface of the extrusion ring 63 is connected to the bottom ends of all of the limiting columns 40, and the bottom surface is evenly arranged in a ring shape with a plurality of pressure blocks 631, and the pressure blocks 631 correspond to the convex slopes 44 one by one, and the pressure blocks 631 are used to extrude the corresponding convex slopes 44 from top to bottom so that the turntable 61 can be turned from the closed angle to the open angle.

[0044] Through the above arrangement, when the lifting mechanism drives the shaping cylinder 10 to descend, the limit column 40 descends to drive the extrusion ring 63 to descend, drive the pressure block 631 to descend and squeeze the corresponding convex slope 44, thereby driving the convex slope 44 to move horizontally, thereby driving the turntable 61 to rotate.

[0045] In order to prevent the splashing of gravel and the flying of dust at the feed port 11 during the shaping process, the feed port 11 is provided with a dustproof mechanism, which includes: a fixed ring 70, which is arranged at the top of the shaping cylinder 10, and the inner diameter of the fixed ring 70 matches the feed port 11; a second includes a rotating ring 71, which is coaxially arranged and rotatably connected with the fixed ring 70, and the inner wall of the rotating ring 71 is provided with a rack; a third includes a plurality of gears 72 arranged in an annular shape, and the gears 72 are arranged on the fixed ring 7 0, the gear 72 is meshed with the rack; the fourth includes a plurality of rotary blades 73, the rotary blades 73 correspond to and are connected to the gear 72 one by one, the free ends of the rotary blades 73 are bent in an arc, the rotary blades 73 are in the shape of sheets, and two adjacent rotary blades 73 are partially overlapped; when the rotating ring 71 is rotated to the closed position, the rotary blades 73 are screwed inwards to close the feed port 11; when the rotating ring 71 is rotated to the open position, the rotary blades 73 are screwed outwards to open the feed port 11.

[0046] Through the above arrangement, when it is necessary to dump the sand and gravel raw materials, the rotating ring 71 is rotated to the open position through the second handle 711, driving the rack on its inner wall to rotate, thereby synchronously driving all the gears 72 to rotate, thereby driving all the rotating blades 73 to rotate outward synchronously, so that the feed port 11 is opened; when the dumping is completed, the rotating ring 71 is rotated to the closed position through the second handle 711, driving the rack on its inner wall to rotate, thereby synchronously driving all the gears 72 to rotate, thereby driving all the rotating blades 73 to rotate inward synchronously, so that the feed port 11 is open and closed.

[0047] In order to give a specific explanation of the crushing and grinding mechanism in the shaping cylinder 10, the shaping cylinder 10 is provided with a plurality of pairs of crushing rollers 80 from top to bottom, each pair of the crushing rollers 80 is arranged in parallel to form a shaping gap between the two crushing rollers 80; the straight lines where two adjacent pairs of the crushing rollers 80 are located are arranged crosswise.

[0048] Through the above arrangement, a pair of crushing rollers 80 rotating in opposite directions are used to crush and grind the sand and gravel to form sand and gravel raw materials of the required size. The sand and gravel are crushed and grinded layer by layer by the multi-layer crushing rollers 80 to improve the shaping effect while avoiding jamming.

[0049] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A sand and gravel shaping device, characterized in that: include: A shaping cylinder (10), the shaping cylinder (10) is used to shape sand and gravel, the shaping cylinder (10) has a feed inlet (11) at the top and a discharge outlet (12) at the bottom; A dust collecting box (20), wherein the top of the dust collecting box (20) is open; A lifting mechanism, wherein the top of the dust box (20) and the bottom of the shaping cylinder (10) are connected via the lifting mechanism, so that the shaping cylinder (10) can be moved close to or away from the dust box (20), so that the shaping cylinder (10) and the dust box (20) can be connected in a sealed manner, or a net-setting gap is formed between the shaping cylinder (10) and the dust box (20); The screen (30) is used for screening sand and gravel of different size ranges, and the screen (30) is detachable and can be placed in the screen gap.

2. The sand and stone shaping device according to claim 1, characterized in that: The lifting mechanism comprises a plurality of limit columns (40) and a rotating ring (41), wherein the limit columns (40) are arranged vertically, the top ends of the limit columns (40) are connected to the bottom of the shaping cylinder (10), and the bottom ends are slidably connected to the top of the dust collecting box (20); The lower part of the shaping cylinder (10) is cylindrical and has an external thread. The rotating ring (41) is sleeved on the lower part of the shaping cylinder (10) and is screwed to the shaping cylinder (10) through an internal thread. The rotating ring (41) is rotatably connected to the top of the dust collecting box (20). The outer wall of the rotating ring (41) is provided with a first handle (411).

3. The sand and stone shaping device according to claim 2, characterized in that: The rotating ring (41) rotates 90° or 180°, and the shaping cylinder (10) descends from the initial position to contact and be in airtight communication with the dust collecting box (20), so that the screen (30) is clamped between the shaping cylinder (10) and the dust collecting box (20).

4. The sand and stone shaping device according to claim 2, characterized in that: The limiting column (40) is provided with a return spring (42), and the return spring (42) is embedded in the top of the dust box (20). The top end of the return spring (42) is connected to the limiting column (40), and the bottom end is in contact with and pressed against the dust box (20).

5. The sand and stone shaping device according to claim 4, characterized in that: It also includes an opening and closing mechanism, which is arranged in the dust box (20) and is used to open or close the top of the dust box (20); The dust collecting box (20) is connected to a negative pressure machine (50).

6. The sand and stone shaping device according to claim 5, characterized in that: The opening and closing mechanism comprises a base plate (60), a rotating disk (61) and a control mechanism, wherein the base plate (60) and the rotating disk (61) are coaxially rotatably connected; The opening and closing mechanism is arranged in the dust box (20), and the outer wall of the base plate (60) is tightly connected to the inner wall of the dust box (20); The base plate (60) is provided with a plurality of first through holes (601) along the thickness direction, and the rotating plate (61) is provided with a plurality of second through holes (611) correspondingly; When the rotating disk (61) is rotated to a closing angle, the rotating disk (61) can close all of the first through holes (601), and the base disk (60) can close all of the second through holes (611); When the rotating disk (61) rotates to an open angle, each of the first through holes (601) overlaps and communicates with the corresponding second through hole (611); The control mechanism is used to control the rotating disk (61) to rotate to the closed angle or the open angle.

7. The sand and stone shaping device according to claim 6, characterized in that: A return torsion spring (62) is mounted on the rotation connection between the rotating disk (61) and the base disk (60); When the return torsion spring (62) is in a natural state, the rotating disk (61) is located at the closed angle.

8. The sand and stone shaping device according to claim 7, characterized in that: The control mechanism comprises an extrusion ring (63) and a plurality of convex slopes (44); All the convex slopes (44) are evenly arranged in a ring shape on the top of the rotating disk (61); The top surface of the extrusion ring (63) is connected to the bottom ends of all the limiting columns (40), and the bottom surface is evenly provided with a plurality of pressing blocks (631) in a ring shape. The pressing blocks (631) correspond to the convex slopes (44) one by one. The pressing blocks (631) are used to press the corresponding convex slopes (44) from top to bottom, so that the rotating disk (61) rotates from the closed angle to the open angle.

9. The sand and stone shaping device according to claim 1, characterized in that: The feed port (11) is provided with a dust prevention mechanism, and the dust prevention mechanism comprises: A fixed ring (70), the fixed ring (70) being arranged at the top of the shaping cylinder (10), and the inner diameter of the fixed ring (70) matching the feed port (11); A rotating ring (71), the rotating ring (71) is coaxially arranged with the fixed ring (70) and rotatably connected, and a rack is provided on the inner wall of the rotating ring (71); a plurality of gears (72) arranged in a ring shape, wherein the gears (72) are arranged on the fixed ring (70), and the gears (72) are meshed with the rack; A plurality of rotary blades (73), the rotary blades (73) corresponding to and connected to the gears (72) one by one, the free ends of the rotary blades (73) being arranged to be curved in an arc, the rotary blades (73) being in a sheet shape, and two adjacent rotary blades (73) being partially overlapped; When the rotating ring (71) rotates to the closed position, the rotating blades (73) rotate inwards to close the feed port (11); When the rotating ring (71) rotates to the open position, the rotating blades (73) rotate outwards to open the feed port (11).

10. The sand and stone shaping device according to claim 1, characterized in that: The shaping cylinder (10) is provided with a plurality of pairs of crushing rollers (80) from top to bottom, and each pair of crushing rollers (80) is arranged in parallel to form a shaping gap between two crushing rollers (80); The straight lines where two adjacent pairs of crushing rollers (80) are located are intersectingly arranged.

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