A blanking mechanism and a multi-stage screening device

Abstract

The utility model provides a kind of discharging mechanism and multistage screening device, discharging mechanism includes rack, shaking mechanism and multiple material guiding components, the movable end of shaking mechanism is connected with the rack, for shaking rack;Multiple the material guiding components are installed on the rack, the material guiding component is arranged in each layer discharge port bottom one by one, multiple the material guiding components are sequentially overlapped from top to bottom And the length of each the material guiding component sequentially increases from top to bottom.The utility model passes through the material guiding component and directs flow to each separate storage container in each level ceramsite, and the material guiding component is installed on the rack, under the shaking of shaking mechanism, along the sliding track of material on material guiding component, while carrying out secondary screening of material through sieve hole bottom plate, the particle that does not meet corresponding layer granularity is screened downwards to the material guiding component of lower next layer granularity, sequentially downwards screening, reduce the proportion of ceramsite that does not meet corresponding particle size range.

Description

Technical Field

[0001] This utility model relates to the field of ceramsite screening and feeding technology, specifically to a feeding mechanism and a multi-stage screening device. Background Technology

[0002] In the production process of expanded clay aggregate, screening is required to separate the aggregate into multiple preset particle size ranges. Multi-stage screening devices are generally used to precisely grade the cooled aggregate according to different particle size ranges to meet the particle size requirements of various applications (such as building insulation, horticulture, sewage treatment, and refractory materials). For example, 202122583671.3 describes a high-efficiency screening device for expanded clay aggregate processing. This structure includes a machine body with a feed inlet at the upper end. A uniform feeding device is located below the feed inlet within the machine body. Below the uniform feeding device, a first screen, a second screen, and a base plate are sequentially arranged at an incline. The base plate is fixed within the machine body. A third sliding plate is connected to the high-end side of both the first and second screens. A third sliding groove penetrating the side wall of the machine body is provided, and the third sliding plate slides within the third sliding groove. A guide plate is connected to the low-end side of the first screen, the second screen, and the base plate. A discharge port corresponding to the guide plate is provided on the side wall of the machine body.

[0003] In the aforementioned existing technology, the screening outlets are generally arranged sequentially from top to bottom, corresponding to the output of the ceramsite from each layer. After feeding, the material is connected to the guide chute and introduced into a container for subsequent packaging or transfer. However, since the multi-stage screening mechanism generally only performs multi-stage screening of the material once, the proportion of ceramsite that does not conform to the particle size range is slightly higher in the screening of each layer of ceramsite. If a screening device is added to each layer of material, it will not only be costly but also time-consuming, affecting production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a feeding mechanism to solve the technical problem in the prior art where, in a single multi-stage screening, the proportion of ceramsite particles that do not conform to the particle size range is slightly high in each layer of ceramsite screening.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a feeding mechanism, comprising: frame; A shaking mechanism, the movable end of which is connected to the frame, for shaking the frame; and Multiple material guiding components are installed on the frame. The material guiding components are arranged one-to-one at the bottom of the discharge port of each layer. The multiple material guiding components are arranged in an overlapping manner from top to bottom, and the length of each material guiding component increases from top to bottom. The material guiding components are provided with a screen hole bottom plate for screening materials during material guiding.

[0006] In some embodiments, the material guiding assembly includes a material guiding rail, an arc-shaped rail, and a material guiding cylinder. The material guiding rail, the arc-shaped rail, and the material guiding cylinder are connected end to end in sequence. The material guiding rail is connected to the frame. The arc-shaped rail is used to switch to the side of the material guiding rail. The material guiding cylinder is used to discharge material downwards. The screen hole bottom plate is detachably connected to the bottom of the material guiding rail.

[0007] In some embodiments, baffles extending obliquely upward are provided on both sides of the guide rail.

[0008] In some embodiments, the inner side of the guide rail is provided with rake teeth for spreading and dispersing the ceramsite.

[0009] In some embodiments, the guide rail and the arc-shaped rail are connected by a conical hopper, and the top of the arc-shaped rail is closed.

[0010] In some embodiments, the rocking mechanism includes a crank-slider mechanism, which includes a drive motor, a disc, a connecting rod, a fixed frame, a guide rail, and a slider. The drive motor is mounted on the fixed frame, the guide rail is fixedly connected to the fixed frame, the slider is slidably connected to the guide rail, the disc is fixedly connected to the output shaft of the drive motor, the slider is detachably connected to the bottom of the frame, the two ends of the connecting rod are respectively hinged to the disc and the slider, and the hinge position of the connecting rod and the disc is offset from its center; the bottom of the frame is provided with a plurality of casters.

[0011] In some embodiments, the frame includes a base and side frames, with two side frames fixedly connected to the top of the base.

[0012] In some embodiments, a plurality of screw holes are equally spaced from top to bottom on the side frame, and the material guiding assembly is installed between the two sides of the side frame by bolts.

[0013] In some embodiments, the arc-shaped rails on the multiple material guiding components are arranged alternately from top to bottom on both sides of the material guiding rail.

[0014] Secondly, this utility model also provides a multi-stage screening device, including a feeding mechanism as described in any of the above.

[0015] Compared with the prior art, the feeding mechanism provided by this utility model guides the ceramsite of each level to separate storage containers through the guiding component. The guiding component is installed on the frame and, under the shaking of the shaking mechanism, slides along the material sliding track of the guiding component. At the same time, the material is screened twice through the bottom plate of the screen hole, and particles that do not conform to the corresponding layer particle size are screened down to the guiding component of the next layer particle size. The screening is carried out sequentially downward, reducing the proportion of ceramsite that does not conform to the corresponding particle size range. Secondary screening is achieved while conveying the material, which is low in cost and high in efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the feeding mechanism provided in this embodiment of the utility model; Figure 2 This is a top view of the feeding mechanism provided in this embodiment of the utility model; Figure 3 This is a structural diagram of the shaking mechanism of the feeding mechanism provided in this embodiment of the utility model; Figure 4 This is a top view of multiple material guiding components of the feeding mechanism provided in this embodiment of the utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Frame; 11. Base; 12. Side frame; 101. Screw hole; 102. Bolt; 2. Shaking mechanism; 21. Drive motor; 22. Disc; 23. Connecting rod; 24. Fixing frame; 25. Guide rail; 26. Slider; 3. Material guiding assembly; 31. Material guiding rail; 32. Arc rail; 33. Material guiding cylinder; 34. Baffle; 35. Rake rack; 36. Conical hopper; 37. Screen hole bottom plate; 4. Waste slag hopper; 5. Storage container. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] To address the technical problem of a slightly higher proportion of ceramsite particles that do not conform to the specified particle size range during multi-stage screening, this invention provides a feeding mechanism that enables secondary screening while conveying materials. This mechanism is low-cost, highly efficient, and reduces the proportion of ceramsite particles that do not conform to the corresponding particle size range.

[0020] It should be noted that the feeding mechanism described in this utility model is used for, but not limited to, feeding after multi-stage screening of ceramsite. For ease of explanation, this utility model will only use the feeding mechanism applied to feeding after multi-stage screening of ceramsite as an example. The principle of the feeding mechanism applied to other types of equipment is essentially the same as that applied to feeding after multi-stage screening of ceramsite, and will not be described in detail here.

[0021] Please see Figure 1-4 This utility model provides a feeding mechanism for feeding materials from the discharge ports of a multi-stage screening device. The feeding mechanism includes a frame 1, a shaking mechanism 2, and multiple guiding components 3. The movable end of the shaking mechanism 2 is connected to the frame 1 and is used to shake the frame 1. Multiple guiding components 3 are installed on the frame 1 and are arranged in an overlapping manner from top to bottom. The multiple guiding components 3 are arranged one-to-one below the discharge ports of each layer of the multi-stage screening device for receiving materials in layers. Each guiding component 3 has a screen hole bottom plate 37 for screening during material feeding. In the overlapping arrangement, the ceramsite material fed from the upper layer can be received in the upper layer and screened again to form a multi-stage screening. The length of each guiding component 3 increases from top to bottom. After the ceramsite material in the upper layer is screened down, there is still a sufficient path for the next layer of screening. For the ceramsite discharged from the multi-stage screening device, it is discharged from the outlet of each layer and directly introduced into the guide component 3. The ceramsite is guided to slide down towards the storage container. During the slide, it passes through the screen hole bottom plate 37, forming a secondary screening. Ceramsite that does not conform to the corresponding particle size range can be screened down. The screened ceramsite can continue to slide down and be screened in the lower guide component 3, forming a multi-stage screening. Through a simple guide channel structure, the ceramsite is guided to move to the corresponding storage container position, and secondary screening is formed in the process of guiding the ceramsite to move. The structure is simple, low-cost and highly efficient.

[0022] Furthermore, the frame 1 is also equipped with a waste hopper 4 located at the bottom of the plurality of material guiding components 3 for receiving waste slag.

[0023] Understandably, the aperture of the sieve hole bottom plate 37 corresponds to the aperture of the corresponding layer of sieve in the multi-stage screening device, which can screen ceramsite that does not belong to this particle size downwards, thereby separating the ceramsite and reducing the proportion of ceramsite that does not conform to the corresponding particle size range.

[0024] It should be noted that the material receiving mechanism in this scheme can be used as long as the discharge ports of the multi-stage screening device are distributed from top to bottom. Furthermore, it can be used for structural features where the discharge ports are located on one side or more than two sides. By extending the material guiding component 3 from both sides to the same side, an overlapping arrangement can be formed. A screen hole bottom plate 37 can be set at the partially overlapping position to form a top-to-bottom screening, which performs secondary screening while guiding the ceramsite to each storage container 5.

[0025] In one embodiment, please refer to Figure 1 and Figure 2 To guide the ceramsite to the corresponding storage containers and provide sufficient space for the storage containers of ceramsite in various particle size ranges, the material guiding assembly 3 includes a material guiding rail 31, an arc-shaped rail 32, and a material guiding cylinder 33. The material guiding rail 31 is grooved, and the material guiding assembly 3 is inclined downwards, meaning that both the material guiding rail 31 and the arc-shaped rail 32 are inclined downwards, guiding the ceramsite to slide down the material guiding rail 31 and the arc-shaped rail 32 by its own weight. The material guiding cylinder 33 is vertically downwards and inserted into the corresponding storage container 5, guiding the ceramsite that has slid to the end of the rail to fall into the storage container 5. The material guiding rail 31, the arc-shaped rail 32, and the material guiding cylinder 33 are connected end to end in sequence to form a material guiding channel. The material guiding rail 31 is connected to the frame 1, and when the frame 1 shakes, it can drive the material guiding assembly 3 to shake and discharge the material. The arc-shaped rail 32 is in the shape of a quarter-helix arc and is used to switch to the side of the guide rail 31, which can be the left or right side of the guide rail 31. The guide rail 31 is a straight rail that is inclined downwards. The guide cylinder 33 is used to discharge material downwards.

[0026] Furthermore, the screen bottom plate 37 is detachably connected to the bottom of the guide rail 31. Specifically, the bottom of the guide rail 31 has an opening, and the screen bottom plate 37 is installed within this opening, forming the inner bottom wall of this section of the guide rail 31. This allows for direct downward screening of ceramsite particles that do not conform to the specified particle size, which then fall onto the guide rail 31 below. Preferably, the screen bottom plate 37 is snap-fitted to the opening or fixed with bolts, making it detachable. This allows for replacement of the screen bottom plate 37 when the screening space changes. In scenarios where frequent changes in screen aperture are not required, it can also be welded or integrally formed onto the guide rail 31.

[0027] Furthermore, in order to reduce the probability of ceramsite falling out during shaking, both sides of the guide rail 31 are provided with upwardly extending baffles 34 to prevent ceramsite from falling out of the rail and to catch ceramsite that falls out of the rail range from above, and to allow it to slide back into the rail using the inclined surface.

[0028] Understandably, the length range and tilt angle of the baffle 34 are set according to the actual shaking amplitude, with the aim of catching the ceramic particles and preventing them from falling to the outside, thus avoiding a large number of ceramic particles falling out.

[0029] In one embodiment, please refer to Figure 1 In order to improve the screening effect of ceramsite as it slides down the track, the inner side of the guide rail 31 is provided with rake teeth 35, which is used to spread the ceramsite evenly. The height and thickness of the ceramsite accumulation can be controlled by the rake teeth 35, so that the ceramsite can be relatively flattened and have sufficient screening effect during shaking, avoiding the situation where the accumulation is too thick and the screening effect is weak.

[0030] Understandably, the discharge port of the multi-stage screening device is smaller than the width of the guide rail 31, so that when the material is discharged onto the guide rail 31, it can play a basic spreading role. In addition, with the help of the rake toothed rack 35, the ceramsite can be further dispersed to both sides.

[0031] Furthermore, in order to concentrate the dispersed ceramsite, the guide rail 31 and the arc-shaped rail 32 are connected by a conical hopper 36, and the top of the arc-shaped rail 32 is closed, thereby gathering the ceramsite and continuing to guide it, so that it is concentrated and guided to the guide cylinder 33, and then discharged into the storage container.

[0032] In one embodiment, please refer to Figure 1 and Figure 3 To shake the frame 1 and the material guiding assembly 3 thereon, the shaking mechanism 2 includes a crank-slider mechanism. The crank-slider mechanism includes a drive motor 21, a disc 22, a connecting rod 23, a fixed frame 24, a guide rail 25, and a slider 26. The drive motor 21 is mounted on the fixed frame 24, which is fixed to the ground. The guide rail 25 is fixedly connected to the fixed frame 24, and the slider 26 is slidably connected to the guide rail 25. The disc 22 is fixedly connected to the drive motor. On the output shaft of machine 21, the slider 26 is detachably connected to the bottom of the frame 1. The two ends of the connecting rod 23 are hinged to the disk 22 and the slider 26 respectively, and the hinge position of the connecting rod 23 and the disk 22 is off-center. The drive motor 21 drives the disk 22 to rotate, which in turn causes the connecting rod 23 to move eccentrically, thereby causing the slider 26 to slide back and forth along the guide rail 25. This back-and-forth sliding motion of the slider 26 causes the frame 1 to move back and forth, creating a swaying motion. The bottom of the frame 1 is equipped with several casters, which provide support and sliding functions.

[0033] Understandably, the crank-slider mechanism is a mature structure with a rocking motion, so it will not be elaborated on here. Furthermore, the rocking mechanism 2 can also adopt existing technical structures with rocking motion drive, such as crank-rocker mechanism and cam mechanism, so it is not the only one.

[0034] Furthermore, in order to connect and separate the frame 1 from the slider 26, the bottom of the frame 1 is provided with two mounting platforms. The slider 26 can be moved and inserted between the two mounting platforms, and then fixed by bolts.

[0035] In one embodiment, please refer to Figure 1To facilitate the installation and disassembly of the material guiding assembly 3, the frame 1 includes a base 11 and side frames 12, with two side frames 12 fixedly connected to the top of the base 11. Each side frame 12 has a plurality of screw holes 101 arranged equidistantly from top to bottom. The material guiding assembly 3 is installed between the two side frames 12 using bolts 102. Depending on the required number of material guiding assemblies 3, they are arranged from top to bottom between the two side frames 12, corresponding to the height of each layer's discharge port, and finally secured with bolts 102.

[0036] Understandably, there are at least two side frames 12 on each side, and the number of side frames 12 can be increased according to the length of the material guide assembly 3, and a longer material guide assembly 3 can be matched for installation and support.

[0037] Furthermore, for a reasonable layout and to provide sufficient space for storage containers, please refer to [link / reference needed]. Figure 4 Multiple arc-shaped rails 32 on the material guiding components 3 are arranged alternately from top to bottom on both sides of the material guiding rail 31. In accordance with the change in length of the material guiding rail 31 of each layer, the storage containers 5 are arranged in sequence on both sides along the length direction.

[0038] This utility model also provides a multi-stage screening device, including a feeding mechanism as described in any of the above. The multi-stage screening device has multiple screening layers, each screening layer having a discharge port to discharge ceramsite of the corresponding particle size, and all discharge ports are located on the same side of the multi-stage screening device. The guide rails 31 of each guide component 3 on the feeding mechanism are respectively arranged at the bottom of each discharge port of the multi-stage screening device.

[0039] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail as follows: After the ceramsite of the corresponding particle size is screened out by the multi-stage screening device, it is discharged from its outlet and discharged onto the guide rail 31 of the guide component 3 of the same layer. It slides down along the guide rail 31 and passes through the screen hole bottom plate 37 above it to screen out ceramsite that does not conform to the particle size, that is, ceramsite smaller than the particle size range is screened out and falls onto the guide rail 31 of the guide component 3 of the next layer below. The screening is carried out sequentially from top to bottom, and the screening of each layer is connected and the feeding is carried out synchronously. The waste hopper 4 at the bottom is used to collect waste slag. After passing through the screen hole bottom plate 37, the ceramsite is guided into the arc-shaped rail 32 through the conical hopper 36. The arc-shaped rail 32 guides the ceramsite to the left or right side of the guide rail 31 and is guided into the storage container by the guide cylinder 33 for subsequent packaging or transfer.

[0040] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A feeding mechanism for feeding materials from the discharge ports of each layer of a multi-stage screening device, characterized in that, include: frame; A shaking mechanism, the movable end of which is connected to the frame, is used to shake the frame; as well as Multiple material guiding components are installed on the frame. The material guiding components are arranged one-to-one at the bottom of the discharge port of each layer. The multiple material guiding components are arranged in an overlapping manner from top to bottom, and the length of each material guiding component increases from top to bottom. The material guiding components are provided with a screen hole bottom plate for screening materials during material guiding.

2. The feeding mechanism according to claim 1, characterized in that, The material guiding assembly includes a material guiding rail, an arc-shaped rail, and a material guiding cylinder. The material guiding rail, the arc-shaped rail, and the material guiding cylinder are connected end to end in sequence. The material guiding rail is connected to the frame. The arc-shaped rail is used to switch to the side of the material guiding rail. The material guiding cylinder is used to discharge material downwards. The screen hole bottom plate is detachably connected to the bottom of the material guiding rail.

3. The feeding mechanism according to claim 2, characterized in that, Both sides of the guide rail are provided with baffles extending upwards at an angle.

4. The feeding mechanism according to claim 2, characterized in that, The inner side of the guide rail is equipped with rake teeth for spreading and dispersing the ceramsite.

5. The feeding mechanism according to claim 2, characterized in that, The guide rail and the arc-shaped rail are connected by a conical hopper, and the top of the arc-shaped rail is closed.

6. The feeding mechanism according to claim 1, characterized in that, The rocking mechanism includes a crank-slider mechanism, which comprises a drive motor, a disc, a connecting rod, a fixed frame, a guide rail, and a slider. The drive motor is mounted on the fixed frame, the guide rail is fixedly connected to the fixed frame, the slider is slidably connected to the guide rail, the disc is fixedly connected to the output shaft of the drive motor, the slider is detachably connected to the bottom of the frame, the two ends of the connecting rod are hinged to the disc and the slider respectively, and the hinge position of the connecting rod and the disc is offset from its center; the bottom of the frame is provided with several casters.

7. The feeding mechanism according to claim 1, characterized in that, The frame includes a base and side frames, with two side frames fixedly connected to the top of the base.

8. The feeding mechanism according to claim 7, characterized in that, The side frame has several screw holes arranged in an equal array from top to bottom, and the material guiding assembly is installed between the two side frames by bolts.

9. The feeding mechanism according to claim 2, characterized in that, Multiple of the aforementioned material guiding components have arc-shaped rails arranged alternately from top to bottom on both sides of the material guiding rail.

10. A multi-stage screening device, characterized in that, Includes the feeding mechanism as described in any one of claims 1-9.

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