Adjustable sifter

Abstract

The utility model discloses an adjustable screening machine, including the chassis, be provided with a plurality of slides on the chassis, each the slide inside slidingly connected with a plurality of fastening screw parts, be provided with a plurality of support assemblies on the slide, the support assembly includes the guide rail and the locating plate, the guide rail and locating plate fixed connection, the fastening screw part and the slide between clamping locating plate, the support assembly with fastening screw part can be opposite the synchronous movement of slide, the guide rail is clamped and is connected with the screen. The utility model provides an adjustable screening machine, can replace the screen on the screening machine quickly, and simultaneously in the connection screen of different size, screening machine can better adaptation different screen, improved the adaptability and replacement efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, and in particular to an adjustable screening machine. Background Technology

[0002] For example, publication number "CN120228046A" discloses a "screening machine for recycling and processing construction waste," which includes a vibrating screen and a layer of screens. The layer of screens includes a frame, a first screen and a second screen disposed within the frame, and a connecting member connecting the first screen and the second screen. The first screen is located above the second screen, and the inclination of the first screen relative to the horizontal plane is less than that of the second screen relative to the horizontal plane. Both the first screen and the second screen include multiple spiral shafts rotatably connected to the frame and spiral blades disposed on the spiral shafts. The spiral blades are provided with protruding ridges, and the multiple spiral shafts are driven by a drive assembly. However, in practical applications, different specifications of screens are required depending on the object being screened. The screens in the prior art cannot be quickly replaced, and the sizes of screens of different specifications are also different. Therefore, the screening machines in the prior art cannot adapt to screens of different sizes. Summary of the Invention

[0003] In view of the problem mentioned in the background art that the existing screening machine cannot easily replace screens of different specifications, this utility model provides an adjustable screening machine that can quickly replace the screens on the screening machine. At the same time, when connecting screens of different sizes, the screening machine can better adapt to different screens, improving the adaptability and replacement efficiency of the device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] An adjustable screening machine includes a chassis with a plurality of slide tracks. A plurality of fastening threaded parts are slidably connected within each slide track. A plurality of support components are provided on each slide track. Each support component includes a guide rail and a positioning plate. The guide rail and the positioning plate are fixedly connected. The positioning plate is clamped between the fastening threaded parts and the slide track. The support components and the fastening threaded parts can move synchronously relative to the slide track. A screen is engaged with the guide rail. In existing technologies, screening machines are equipped with several screens. These screens, depending on their density, are used to screen different materials or to screen the same material to different degrees. Regardless of the screening operation, different specifications of screens are required. However, the screen replacement process in existing screening machines is cumbersome, and if the screens of different densities are not the same size, their installation positions will change, making it impossible to install screens of different sizes on the screening machine. To address these issues, this application provides multiple slide rails on the chassis. Fastening threaded components are slidably connected within the slide rails. When the fastening threaded components are loose, they can move relative to each other within the slide rails; when the fastening threaded components are tightened, they can move relative to each other within the slide rails. The position is fixed; furthermore, a support component is provided on the slide rail, the support component including a guide rail and a positioning plate, wherein the guide rail and the positioning plate are fixedly connected, including but not limited to welding, integral molding, etc., so as to ensure that the guide rail and the positioning plate can be relatively fixed in position, and the positioning plate is connected to a fastening threaded part, so that when the fastening threaded part moves relative to the slide rail, it can drive the position of the guide rail relative to the slide rail to change. The screen is engaged and connected on the guide rail, which improves the convenience of connection between the screen and the guide rail; at the same time, since the guide rail can move on the slide rail with the fastening threaded part, the spacing between each guide rail can be adaptively changed, so as to accommodate screens of different specifications and sizes, and the engaging connection allows for quick installation and disassembly of the screen. Specifically, after disassembling the original screen, determine the size of the screen to be replaced. If the size of the screen is different from that of the original screen, loosen the fastening threads and adjust the relative position of the support components on the slide rail so that the position between the guide rails changes to accommodate the size of the screen to be replaced, thus achieving the convenient and adjustable effect of the screening machine.

[0006] Preferably, the guide rail includes a staggered support rail, which comprises a high support plate and a low support plate. The high support plate and the low support plate are respectively connected to adjacent screens, and the height of the high support plate is greater than the height of the low support plate. The guide rail includes a staggered support rail, wherein the staggered support rail is a guide rail disposed in the area excluding both ends; the guide rails disposed at both ends are not staggered support rails. The staggered support rail is equipped with a high-level support plate and a low-level support plate. The high-level support plate is higher than the low-level support plate. Both the high-level and low-level support plates can be engaged with the screens. However, the screens connected to the high-level and low-level support plates are not the same, but rather two adjacent screens. This creates a height difference between the two ends of the adjacent screens, resulting in an inclined screen surface during operation, which facilitates material conveying. The stepped installation of the screens allows the material to bounce higher and stay on the screen surface for a longer time due to the vibration force of the screening machine and the height difference of the screens. This improves the screening efficiency of the screening machine under the same vibration force, increases the effective screening area, and reduces material blockage.

[0007] Preferably, the screen is provided with a locking groove, and the guide rail is provided with a locking strip, the locking strip engaging with the locking groove. The locking groove on the screen can engage with the locking strip, thereby facilitating the connection between the guide rail and the screen and ensuring the stability of the connection between the screen and the guide rail.

[0008] Preferably, the engaging groove includes a complete sidewall and several independent side plates, with a discontinuing gap between each of the independent side plates. The engaging groove comprises a complete sidewall and independent side plates, wherein the complete sidewall is a single planar structure, and multiple independent side plates are provided on the other side of the complete sidewall, with discontinuing gaps between each independent side plate. This allows each independent side plate to operate independently, disrupting the integrity between them. Therefore, during the engaging groove's engagement with the engaging strip, it facilitates deformation of the independent side plates, thereby improving the smoothness of the connection between the engaging groove and the engaging strip.

[0009] Preferably, the locking groove includes an expansion opening and a contraction groove, the expansion opening being connected to the contraction groove, and the size of the expansion opening being larger than the size of the locking strip. Specifically, the locking groove includes an expansion opening and a contraction groove, the size of the expansion opening being larger than the size of the contraction groove, and the expansion opening being connected to the contraction groove. The expansion opening facilitates the connection of the locking strip, while the contraction groove ensures the stability of the connection between the locking strip and the locking groove.

[0010] Preferably, the fastening threaded component includes a bolt and a nut. The nut of the bolt is disposed inside the slide rail, and the bolt is inverted and connected to the slide rail. The nut is disposed above the slide rail. The fastening threaded component consists of a bolt and a nut, wherein the bolt is inverted and connected to the slide rail, and the nut of the bolt is located inside the slide rail, so that the threaded portion of the bolt protrudes upward through the slide rail. The nut is connected to the exposed threaded portion. The nut fixes the positioning plate above the slide rail. The connection between the bolt and the nut ensures the stability of the support assembly.

[0011] Preferably, a washer is provided between the nut and the positioning plate. The washer increases the contact area between the nut and the positioning plate, improving stability, reducing the stress-bearing area, and minimizing stress concentration.

[0012] Preferably, the slide rail includes a side rail and a hook plate disposed on the top of the side rail. The hook plate forms a barb structure relative to the side rail to limit and engage the threaded parts. By providing a hook plate on the top of the side rail, the hook plate can limit and constrain the threaded parts, thereby ensuring the stability of the support assembly and preventing the screen from detaching from the slide rail during vibration.

[0013] Preferably, the guide rail has reinforcing ribs in the areas corresponding to the positioning plates. The reinforcing ribs are positioned in the areas corresponding to the positioning plates to ensure structural strength in those areas, reduce the probability of deformation, and thus ensure the stability of the connection between the screen and the guide rail.

[0014] Preferably, the slide rail includes side rails and a base plate disposed at the bottom of the side rails, the base plate abutting against the chassis. The base plate at the bottom of the side rails, abutting against the chassis, ensures the stability of the slide rail and improves its support effect.

[0015] The beneficial effects of this utility model are as follows: (1) It can improve the installation efficiency of the screen, enabling the screening machine to adapt to different types of screen installation and improve its adaptability; (2) The screen is set into a stepped structure. The material jumps higher and stays on the screen surface for a longer time through the excitation force of the screening machine and the height difference of the screen. Thus, the screening efficiency of the screening machine is improved under the same excitation force, the effective screening area is increased, and the material blockage phenomenon is reduced. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a partial isometric view of this utility model.

[0018] Figure 3 yes Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 4 yes Figure 2 A magnified view of a section at point B.

[0020] Figure 5 yes Figure 2 A magnified view of a section at point C.

[0021] Figure 6 This is an isometric view of the screen in this utility model.

[0022] Figure 7 yes Figure 6 A magnified view of a section at point D.

[0023] In the picture: 1. Chassis; 2. Slide rails, 21. Side rails, 22. Hook plates, 23. Base plates; 3. Threaded fasteners; 31. Bolts; 32. Nuts; 33. Washers. 4 Support components, 41 Guide rail, 411 Misalignment support rail, 412 High support plate, 413 Low support plate, 414 Clamping strip, 42 Positioning plate; 5. Screen, 51. Clamping groove, 511. Complete side wall, 512. Independent side plate, 513. Disconnection gap, 514. Expansion opening, 515. Shrinking groove, 516. Reinforcing rib. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1: like Figure 1 , 2As shown, an adjustable screening machine includes a chassis 1, on which a plurality of slides 2 are provided. A plurality of fastening threaded parts 3 are slidably connected in each slide 2. A plurality of support components 4 are provided on the slides 2. The support components 4 include a guide rail 41 and a positioning plate 42. The guide rail 41 and the positioning plate 42 are fixedly connected. The positioning plate 42 is clamped between the fastening threaded parts 3 and the slides 2. The support components 4 and the fastening threaded parts 3 can move synchronously relative to the slides 2. A screen 5 is engaged with the guide rail 41. In existing technology, screening machines are equipped with several screens 5. These screens 5, depending on their density, are used to screen different materials or to screen the same material to different degrees. Regardless of the screening operation, different specifications of screens 5 are required. However, the replacement process for screens 5 in existing screening machines is cumbersome. Furthermore, if the sizes of screens 5 with different densities are not the same, the installation position of the screens 5 will change, making it impossible to install screens 5 of different sizes on the screening machine. To address these issues, this application provides a slide rail 2 on the chassis 1, with multiple slide rails 2. A fastening threaded component 3 is slidably connected within each slide rail 2. When the fastening threaded component 3 is loose, it can move relative to the slide rail 2; when the fastening threaded component 3 is tightened, it can fix its position on the slide rail 2. Further... A support assembly 4 is provided on the slide rail 2. The support assembly 4 includes a guide rail 41 and a positioning plate 42. The guide rail 41 and the positioning plate 42 are fixedly connected, including but not limited to welding and integral molding, so as to ensure that the guide rail 41 and the positioning plate 42 can be relatively fixed in position. The positioning plate 42 is connected to the fastening threaded part 3, so that when the fastening threaded part 3 moves relative to the slide rail 2, it can drive the position of the guide rail 41 to change relative to the slide rail 2. The screen 5 is engaged and connected on the guide rail 41. By engaging and connecting the screen 5, the connection between the screen 5 and the guide rail 41 can be improved. At the same time, since the guide rail 41 can move on the slide rail 2 with the fastening threaded part 3, the spacing between each guide rail 41 can be adaptively changed, so as to accommodate screens 5 of different specifications and sizes. And the engaging connection can quickly install and remove the screen 5. Specifically, after disassembling the original screen 5, the size of the screen 5 to be replaced is determined. If the size of the screen 5 is different from that of the original screen 5, the fastening thread 3 is loosened, and the relative position of the support component 4 on the slide 2 is adjusted so that the position between the guide rails 41 changes to adapt to the size of the screen 5 to be replaced, thereby achieving the convenient and adjustable effect of the screening machine.

[0026] like Figure 3As shown, the fastening threaded component 3 includes a bolt 31 and a nut 32. The nut of the bolt 31 is located inside the slide rail 2, and the bolt 31 is inverted and connected to the slide rail 2. The nut 32 is located above the slide rail 2. The fastening threaded component 3 consists of a bolt 31 and a nut 32. The bolt 31 is inverted and connected to the slide rail 2, and the nut of the bolt 31 is located inside the slide rail 2, so that the threaded part of the bolt 31 protrudes upward through the slide rail 2. The nut is connected to the exposed threaded part. The nut 32 fixes the positioning plate 42 above the slide rail 2. The connection between the bolt 31 and the nut 32 ensures the stability of the support assembly 4.

[0027] like Figure 3 As shown, a washer 33 is provided between the nut 32 and the positioning plate 42. The washer 33 can increase the contact area between the nut 32 and the positioning plate 42, thereby improving stability, reducing the stress area, and reducing stress concentration.

[0028] like Figure 3 As shown, the guide rail 41 has reinforcing ribs 516 in the area corresponding to the positioning plate 42. The reinforcing ribs 516 are provided on the guide rail 41, and their positions are on the area corresponding to the positioning plate 42, thereby ensuring the structural strength of the area, reducing the probability of deformation in the area, and thus ensuring the connection stability between the screen 5 and the guide rail 41.

[0029] Example 2: like Figure 3 , 4As shown, the guide rail 41 includes a staggered support rail 411, which includes a high support plate 412 and a low support plate 413. The high support plate 412 and the low support plate 413 are respectively connected to adjacent screens 5, and the height of the high support plate 412 is higher than the height of the low support plate 413. The guide rail 41 includes a staggered support rail 411, wherein the staggered support rail 411 is the guide rail 41 set in the area except for the two ends, and the guide rail 41 set at the two ends is not the staggered support rail 411. The staggered support rail 411 is equipped with a high support plate 412 and a low support plate 413. The high support plate 412 is higher than the low support plate 413. Both the high support plate 412 and the low support plate 413 can be engaged with the screen 5. The screens 5 connected to the high support plate 412 and the low support plate 413 are not the same, but are connected to two adjacent screens 5 respectively. This creates a height difference between the beginning and end of the adjacent screens 5, resulting in an inclined screen surface during operation, which facilitates material conveying. The screens 5 are installed in a stepped shape. This design allows the material to bounce higher and stay on the screen surface for a longer time due to the vibration force of the screening machine and the height difference of the screens 5. This improves the screening efficiency of the screening machine under the same vibration force, increases the effective screening area, and reduces material blockage.

[0030] like Figure 6 , 7 As shown, the engaging groove 51 includes an expansion opening 514 and a contraction groove 515. The expansion opening 514 is connected to the contraction groove 515, and the size of the expansion opening 514 is larger than the size of the engaging strip 414. Specifically, the engaging groove 51 includes an expansion opening 514 and a contraction groove 515. The opening size of the expansion opening 514 is larger than the size of the contraction groove 515, and the expansion opening 514 is connected to the contraction groove 515. The expansion opening 514 facilitates the connection of the engaging strip 414, and the contraction groove 515 ensures the connection stability between the engaging strip 414 and the engaging groove 51.

[0031] like Figure 4 , 7 As shown, the screen 5 is provided with a locking groove 51, and the guide rail 41 is provided with a locking strip 414, which engages with the locking groove 51. The locking groove 51 on the screen 5 can engage with the locking strip 414, thereby facilitating the connection between the guide rail 41 and the screen 5 and ensuring the stability of the connection between the screen 5 and the guide rail 41.

[0032] like Figure 6As shown, the engaging groove 51 includes a complete sidewall 511 and several independent side plates 512, with a discontinuity gap 513 between each independent side plate 512. The engaging groove 51 includes a complete sidewall 511 and independent side plates 512, wherein the complete sidewall 511 is a complete planar structure, and an independent side plate 512 is provided on the other side of the complete sidewall 511. Multiple independent side plates 512 are provided, and a discontinuity gap 513 is left between each independent side plate 512, so that each independent side plate 512 is in a relatively independent state and can move independently, thus breaking the integrity between the independent side plates 512. Therefore, during the process of engaging the engaging groove 51 to engage the engaging strip 414, it is easier for the independent side plates 512 to deform, thereby improving the smoothness of the connection between the engaging groove 51 and the engaging strip 414.

[0033] like Figure 5 As shown, the slide 2 includes a side rail 21 and a hook plate 22 disposed on the top of the side rail 21. The hook plate 22 forms a barb structure relative to the side rail 21, which can limit and engage the threaded part 3. By providing the hook plate 22 on the top of the side rail 21, the hook plate 22 can form a limiting constraint effect on the threaded part 3, thereby ensuring the stability of the support assembly 4 and preventing the screen 5 from detaching from the slide 2 during vibration.

[0034] like Figure 5 As shown, the slide 2 includes a side rail 21 and a base plate 23 disposed at the bottom of the side rail 21, with the base plate 23 abutting against the chassis 1. The base plate 23 is disposed at the bottom of the side rail 21, and the base plate 23 abuts against the chassis 1, thereby ensuring the stability of the slide 2 and improving the support effect.

[0035] In this embodiment, in addition to the above-mentioned structural features, it also includes a chassis 1, on which a plurality of slide rails 2 are provided. A plurality of fastening threaded parts 3 are slidably connected within each slide rail 2. A plurality of support components 4 are provided on each slide rail 2. Each support component 4 includes a guide rail 41 and a positioning plate 42. The guide rail 41 and the positioning plate 42 are fixedly connected. The fastening threaded parts 3 clamp the positioning plate 42 between themselves and the slide rails 2. The support components 4 and the fastening threaded parts 3 can move synchronously relative to the slide rails 2. A screen 5 is engaged with the guide rail 41. The engaging groove 51 includes an expansion opening 514 and a contraction groove 515. The expansion opening 514 communicates with the contraction groove 515, and the size of the expansion opening 514 is larger than the size of the engaging strip 414. The fastening threaded parts 3 include bolts 31 and nuts 32. The nuts of the bolts 31 are disposed inside the slide rails 2, and the bolts 31 are inverted and connected to the slide rails 2. The nuts 32 are disposed above the slide rails 2. A washer 33 is provided between the nuts 32 and the positioning plate 42. The guide rail 41 has reinforcing ribs 516 in the area where the positioning plate 42 is provided.

[0036] In this application, a slide rail 2 is provided on the chassis 1, wherein multiple slide rails 2 are provided, and a fastening threaded component 3 is slidably connected within the slide rail 2. When the fastening threaded component 3 is loose, it can move relative to the slide rail 2; when the fastening threaded component 3 is tightened, it can be fixed in position on the slide rail 2. Furthermore, a support assembly 4 is provided on the slide rail 2, the support assembly 4 including a guide rail 41 and a positioning plate 42. The guide rail 41 and the positioning plate 42 are fixedly connected, including but not limited to welding, integral molding, etc., thereby ensuring that the guide rail 41 and the positioning plate 42 can maintain relative positions. The positioning plate 42 is fixed and connected to the fastening threaded part 3. This allows the position of the guide rail 41 relative to the slide 2 to change when the fastening threaded part 3 moves relative to the slide 2. The screen 5 is engaged with the guide rail 41, improving the ease of connection between the screen 5 and the guide rail 41. Furthermore, since the guide rail 41 can move along the slide 2 with the fastening threaded part 3, the spacing between the guide rails 41 can be adaptively changed to accommodate screens 5 of different sizes. The engaging connection also allows for quick installation and removal of the screen 5. Specifically, after removing the original screen 5, the size of the screen 5 to be replaced is determined. If the size of the screen 5 is different from the original, the fastening threaded part 3 is loosened, and the relative position of the support component 4 on the slide 2 is adjusted. This changes the position of the guide rails 41 to accommodate the size of the subsequently replaced screen 5, thus achieving a convenient and adjustable effect for the screening machine.

[0037] The locking groove 51 includes an expansion opening 514 and a narrowing groove 515. The opening size of the expansion opening 514 is larger than the size of the narrowing groove 515, and the expansion opening 514 is connected to the narrowing groove 515. The expansion opening 514 makes it easier to connect the locking strip 414, and the narrowing groove 515 ensures the connection stability between the locking strip 414 and the locking groove 51.

[0038] The fastening threaded component 3 consists of a bolt 31 and a nut 32. The bolt 31 is inverted and connected to the slide rail 2, with the nut of the bolt 31 located inside the slide rail 2, allowing the threaded portion of the bolt 31 to protrude upwards through the slide rail 2. The nut is connected to the exposed threaded portion. The nut 32 fixes the positioning plate 42 above the slide rail 2. The connection between the bolt 31 and the nut 32 ensures the stability of the support assembly 4. A washer 33 is provided between the nut 32 and the positioning plate 42. The washer 33 increases the contact area between the nut 32 and the positioning plate 42, improving stability, reducing the stress area, and reducing stress concentration. Reinforcing ribs 516 are provided on the guide rail 41, with the reinforcing ribs 516 positioned in the area corresponding to the positioning plate 42. This ensures the structural strength of the area, reduces the probability of deformation in that area, and thus ensures the connection stability between the screen 5 and the guide rail 41.

Claims

1. An adjustable screening machine, characterized in that, The device includes a chassis with several slide tracks. Several fastening threaded parts are slidably connected within each slide track. Several support components are provided on each slide track. Each support component includes a guide rail and a positioning plate. The guide rail and the positioning plate are fixedly connected. The positioning plate is clamped between the fastening threaded parts and the slide track. The support components and the fastening threaded parts can move synchronously relative to the slide track. A screen is engaged with the guide rail.

2. The adjustable screening machine according to claim 1, characterized in that, The guide rail includes a staggered support rail, which includes a high support plate and a low support plate. The high support plate and the low support plate are respectively connected to adjacent screens, and the height of the high support plate is higher than that of the low support plate.

3. An adjustable screening machine according to claim 1, characterized in that, The screen is provided with a locking groove, and the guide rail is provided with a locking strip, which engages with the locking groove.

4. An adjustable screening machine according to claim 3, characterized in that, The engaging groove includes a complete sidewall and several independent side plates, with a discontinuity gap between each of the independent side plates.

5. An adjustable screening machine according to claim 3, characterized in that, The engaging groove includes an expansion opening and a contraction groove, the expansion opening being connected to the contraction groove, and the size of the expansion opening being larger than the size of the engaging strip.

6. An adjustable screening machine according to claim 1, characterized in that, The fastening threaded component includes a bolt and a nut. The nut of the bolt is disposed inside the slide rail. The bolt is inverted and connected to the slide rail. The nut is disposed above the slide rail.

7. An adjustable screening machine according to claim 6, characterized in that, A washer is provided between the nut and the positioning plate.

8. An adjustable screening machine according to any one of claims 1-7, characterized in that, The slide rail includes a side rail and a hook plate disposed on the top of the side rail. The hook plate forms a barb structure relative to the side rail, which can limit and engage the threaded parts.

9. An adjustable screening machine according to any one of claims 1-7, characterized in that, The guide rail has reinforcing ribs in the area where the positioning plate is located.

10. An adjustable screening machine according to any one of claims 1-7, characterized in that, The slide includes side rails and a base plate disposed at the bottom of the side rails, the base plate abutting against the chassis.

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