Stepped push-pull sorting device

Abstract

The stepped push-pull sorting device comprises a driving mechanism, a rack assembly and a sieve tray assembly, the sieve tray assembly comprises a supporting tray body, a push-pull tray body, a first supporting base and a second supporting base, and the supporting tray body and the push-pull tray body are arranged side by side to form a sieve tray used for bearing materials; the supporting disc body and the push-pull disc body are both arranged in an inclined mode, the supporting disc body is fixed to the machine frame assembly through a first supporting base, the push-pull disc body is connected with the machine frame assembly in a sliding mode through a second supporting base, and the driving mechanism drives the push-pull disc body to move back and forth in the horizontal direction. The device has the advantages that the device is driven to drive the sieve plate assembly to do repeated staggered and variable-direction movement in the horizontal direction to push materials, the materials are rapidly separated according to different stress directions and stress sizes of the materials with different sizes and weights, and meanwhile the requirement for the load performance of a driving mechanism is lowered.

Description

Technical Field

[0001] The present invention relates to the field of material sorting equipment, and particularly to a stepped push-pull sorting device. Background Art

[0002] Most of the existing material screening devices drive the vibrator through a driving mechanism. The vibrator forces the sieve tray to vibrate up and down, so that the materials in the sieve tray are displaced due to vibration. The materials meeting the specification requirements will be sorted out through the sieve holes. However, when the materials loaded on the sieve tray contain heavy objects, for example, when sorting out metal objects such as iron nails, nuts, and small iron sheets from construction waste or construction tailings, most of these wastes are mixed with large-volume steel plates, cement blocks, stones, etc., which pose extremely high requirements on the load capacity of the driving mechanism and the load capacity of the vibrator. At the same time, since the volume of the sieve tray for sorting construction waste is relatively large, after the construction waste is loaded by a forklift, the total weight of the sieve tray can reach five or six tons. Therefore, simply increasing the power of a single device is difficult to meet the vibration requirements, and multiple devices must work together, which results in a significant increase in equipment costs. Therefore, the existing scheme of screening materials by vibration is obviously not suitable for the sorting of heavy materials. Summary of the Invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide a stepped push-pull sorting device, which drives the device to drive the sieve plate assembly itself to move horizontally in a repeated and staggered manner and change directions, pushes the materials, and uses the different force directions and magnitudes of materials with different sizes and weights to quickly separate the materials, while reducing the requirements for the load performance of the driving mechanism.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A stepped push-pull sorting device includes a driving mechanism, a frame assembly, and a sieve tray assembly. The sieve tray assembly includes a support tray body, a push-pull tray body, a first support seat, and a second support seat. The support tray body and the push-pull tray body are arranged side by side to form a sieve tray for carrying materials. The support tray body and the push-pull tray body are both inclined. The support tray body is fixed to the frame assembly through the first support seat, and the push-pull tray body is slidably connected to the frame assembly through the second support seat. The driving mechanism drives the push-pull tray body to move back and forth in the horizontal direction.

[0006] Preferably, the support tray body includes a plurality of first sieve plates, the push-pull tray body includes a plurality of second sieve plates, the first sieve plates and the second sieve plates are distributed in an alternating and side-by-side manner, the first sieve plates are fixed to the frame assembly through the first support seat, and the second sieve plates are slidably connected to the frame assembly through the second support seat.

[0007] Preferably, the first sieve plate and the second sieve plate are evenly spaced apart.

[0008] Preferably, a continuous multi-level step is provided on the surface of the second sieve plate from the starting end to the end, and sieve holes are provided on each step, and the surface of the first sieve plate is a plane with a plurality of sieve holes spaced apart.

[0009] Preferably, the frame assembly includes a fixed base, a movable base and a plurality of sliding support assemblies. Each of the sliding support assemblies is fixed on the fixed base. The movable base is arranged above the sliding support assemblies and the movable base is slidably connected with the sliding support assemblies; the driving mechanism and the first support seat are both fixed on the movable base, and the second support seat is slidably connected with the movable base.

[0010] Preferably, the driving mechanism includes a motor, a transmission wheel, an eccentric wheel, a coupling shaft, a flywheel and a connecting rod. The transmission wheel and the flywheel are connected by the coupling shaft. The eccentric wheel is sleeved on the coupling shaft. The motor drives the transmission wheel to rotate, and the transmission wheel drives the eccentric wheel to rotate. A connecting seat is fixed at the end of the push-pull disk body near the driving mechanism. The ends of each of the second sieve plates are fixedly connected with the connecting seat. One end of the connecting rod is movably sleeved with the eccentric wheel, and the other end is hinged with the connecting seat.

[0011] Preferably, the sliding support assemblies are spaced apart on both sides of the fixed base. The sliding support assemblies are a first roller and a vertical rod. One end of the vertical rod is vertically fixed on the fixed base, and the other end is provided with the first roller. The first roller is slidably connected with the movable base.

[0012] Preferably, four limiting columns distributed in a rectangle are vertically fixed on the fixed base. In the length direction, the length between two adjacent limiting columns > the length of the movable base. In the width direction, the width between two adjacent limiting columns ≤ the width of the movable base. A buffer for weakening the impact force of the movable base is horizontally arranged on the limiting columns at the same height as the movable base.

[0013] Preferably, the buffer is a spring.

[0014] Preferably, a plurality of second rollers are fixed on the upper surface of the movable base. A U-shaped limiting member is provided at the lower end of the second support seat. The second rollers are located in the U-shaped limiting members, and the second rollers and the U-shaped limiting members are arranged in one-to-one correspondence.

[0015] The present invention has the following beneficial effects:

[0016] 1. A stepped push-pull sorting device of the present invention, wherein the sieve tray assembly is composed of a support tray body and a push-pull tray body that are inclined and can move out of alignment. By using the repeated reverse movement of the push-pull tray body and the component force of the material moving downward along the slope caused by the inclined setting, the two act together to make the object move continuously, thereby realizing rapid sieving.

[0017] 2. A stepped push-pull sorting device of the present invention further combines a first sieve plate and a second sieve plate arranged in an interleaved manner, so that large materials or small materials that straddle both the first sieve plate and the second sieve plate can all be partially subjected to a thrust force and partially not, enabling the material to continuously adjust the placement direction during the forward movement, thereby gradually approaching the nearby sieve holes and improving the sorting sufficiency.

[0018] 3. The present invention also improves the surface structure of the second sieve plate, designing it as a stepped upper surface, so that the height difference range between the second sieve plate and the adjacent first sieve plate during movement changes more greatly, generating a certain vibration effect on the material and also prompting the material to continuously change its position and direction, improving the sufficiency of sieving and sorting.

[0019] 4. The driving mechanism of the present invention only needs to apply a horizontal push-pull force to the sieve tray assembly. For heavier materials, there is no need to use a high-load driving mechanism, reducing the equipment cost and ensuring the sufficiency of screening.

[0020] 5. The frame mechanism of the present invention adopts a combination of a fixed frame and a movable frame, and the driving mechanism is arranged on the movable frame, enabling the driving mechanism itself to receive a reaction force, thereby driving the support tray body to move in the opposite direction, which is more conducive to realizing the misalignment movement of the two tray bodies and reducing the acting force of the driving mechanism on the frame assembly. The present invention can drive the push-pull tray body at a higher frequency, improving the sufficiency and efficiency of material sorting. At the same time, it reduces the shaking of the frame assembly during operation, making the frame assembly more stable and reliable. Description of the Drawings

[0021] Figure 1 and Figure 2 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 3 is a front view of the push-pull tray body of the present invention when moving backward;

[0023] Figure 4 is a front view of the push-pull tray body of the present invention when moving forward;

[0024] Figure 5 is a schematic diagram of the push-pull tray body of the present invention;

[0025] Figure 6 is a schematic diagram of the support tray body of the present invention.

[0026] Description of the reference numerals in the drawings:

[0027] 10. Driving mechanism; 11. Motor; 12. Driving wheel; 13. Eccentric wheel; 14. Connecting rod; 15. Connecting seat;

[0028] 20. Frame assembly; 21. Fixed base; 211. Limit post; 212. Buffer; 22. Movable base; 221. Second roller; 23. Sliding support assembly; 231. First roller; 232. Upright rod;

[0029] 30. Sieve plate assembly; 31. Support plate body; 311. First sieve plate; 32. Push-pull plate body; 321. Second sieve plate; 3211. Step; 322. Connecting seat; 33. First support seat; 34. Second support seat; 341. U-shaped limit piece. Detailed implementation manners

[0030] The present invention will be further described in detail below with reference to the drawings and specific embodiments:

[0031] Please refer to Figures 1 to 6 , a stepped push-pull sorting device, including a driving mechanism 10, a frame assembly 20 and a sieve plate assembly 30. The sieve plate assembly 30 includes a support plate body 31, a push-pull plate body 32, a first support seat 33 and a second support seat 34. The support plate body 31 and the push-pull plate body 32 are arranged side by side to form a sieve plate for carrying materials. The support plate body 31 and the push-pull plate body 32 are both inclined. The support plate body 31 is fixed to the frame assembly 20 through the first support seat 33. The push-pull plate body 32 is slidably connected to the frame assembly 20 through the second support seat 34. The driving mechanism 10 drives the push-pull plate body 32 to move back and forth in the horizontal direction. By pushing and pulling the push-pull plate body 32 through the driving mechanism 10 while keeping the support plate body 31 stationary, on the one hand, the two plates are misaligned, so that all or part of the single material on the push-pull plate body 32 on the sieve plate is subjected to a thrust or a pulling force, thereby causing the material to move. The material meeting the specification requirements can be sorted out from the adjacent sieve holes. On the other hand, through the reciprocating movement of the push-pull plate body 32, the material on the push-pull plate body 32 moves in a reciprocating and changing direction. And due to the inclined setting of the plate body, the material can also, under the action of its own gravity, utilize inertia to accelerate the sliding speed of the large material when the push-pull plate body 32 changes direction, improving the screening efficiency. Since the driving device only needs to apply a horizontal force to the sieve plate assembly 30, and the sieve plate assembly 30 loading heavy materials only increases a little friction, therefore, when adopting the technical solution of the present invention, the driving mechanism 10 does not need to generate an upward thrust greater than the weight of the lifted material, reducing the requirement for the load capacity of the driving mechanism 10.

[0032] In order to better move the materials through the relative staggered movement between the support plate body 31 and the push-pull plate body 32, the support plate body 31 includes a plurality of first sieve plates 311, the push-pull plate body 32 includes a plurality of second sieve plates 321, the first sieve plates 311 and the second sieve plates 321 are arranged in a staggered and side-by-side manner, the first sieve plates 311 are fixed to the frame assembly 20 through the first support seats 33, and the second sieve plates 321 are slidably connected to the frame assembly 20 through the second support seats 34. Preferably, the first sieve plates 311 and the second sieve plates 321 are evenly spaced, so that the materials can be fully affected by the thrust or pulling force, and the overlapping materials will also be linked due to the different magnitudes of the forces they receive and the mutual collision between adjacent materials, so that the materials meeting the specification requirements can be sorted out more quickly.

[0033] More preferably, please refer to Figure 5 , a continuous multi-stage step 3211 is provided on the surface of the second sieve plate 321 from the starting end to the ending end, sieve holes are provided on each stage of the step 3211, and the surface of the first sieve plate 311 is a plane provided with a plurality of sieve holes at intervals. Please refer to Figure 3 and Figure 4 , the function of the multi-stage step 3211 is that during the process of pushing the materials to move, when the step 3211 moves back and forth, the materials also produce a certain vibration effect in the vertical direction due to the height difference, and the movement of the materials is further promoted through the vibration. At the same time, by using the step 3211 on the second sieve plate 321 to be higher or lower (the "higher" or "lower" is related to the relative positions of the first sieve plate 311 and the second sieve plate 321) than the adjacent first sieve plate 311 during the movement, the materials are promoted to move in the high-low stagger.

[0034] This embodiment provides a common driving mechanism 10, but its implementation manner is not limited thereto. The driving mechanism 10 includes a motor 11, a transmission wheel 12, an eccentric wheel 13, a connecting rod 14, a coupling shaft, and a flywheel 15. The motor 11 can be connected to the transmission wheel 12 through a belt (not shown) to drive the transmission wheel 12 to rotate. The transmission wheel 12 and the flywheel 15 are connected through the coupling shaft, the eccentric wheel 13 is sleeved on the coupling shaft, and the transmission wheel 12 drives the eccentric wheel 13 to rotate. A connecting seat 322 is fixed at the end of the push-pull plate body 32 close to the driving mechanism 10, and the ends of each second sieve plate 321 are fixedly connected to the connecting seat 322. One end of the connecting rod 14 is movably sleeved on the eccentric wheel 13, and the other end is hinged to the connecting seat 322. In practical applications, in order to prevent the connecting seat 15 from colliding with the support plate body 31, the following settings can be made: when the rotation point of the eccentric wheel 13 is closest to the support plate body 31, the end surface of the support plate body 31 is flush with the end surface of the push-pull plate body 32.

[0035] Since the driving mechanism 10 needs to repeatedly push and pull the sieve plate assembly 30 at a relatively high frequency, the driving mechanism 10 generates a large force on the frame assembly 20. To improve the reliability and service life of the frame assembly 20 and ensure that the staggered distance between the first sieve plate 311 and the second sieve plate 321 remains unchanged, the frame assembly 20 is improved in this embodiment. The frame assembly 20 includes a fixed base 21, a movable base 22, and a plurality of sliding support assemblies 23. Each of the sliding support assemblies 23 is fixed to the fixed base 21. The movable base 22 is disposed above the sliding support assemblies 23 and is slidably connected to the sliding support assemblies 23. The driving mechanism 10 and the first support seat 33 are both fixed to the movable base 22, and the second support seat 34 is slidably connected to the movable base 22. Each of the sliding support assemblies 23 is spaced apart on both sides of the fixed base 21. The sliding support assembly 23 includes a first roller 231 and a vertical rod 232. One end of the vertical rod 232 is vertically fixed to the fixed base 21, and the other end is provided with the first roller 231. The first roller 231 is slidably connected to the movable base 22. The first roller 231 can not only play a role in supporting and sliding, but also play a role in shock absorption. Through the sliding support assembly 23, the movable base 22 can be pushed or pulled by the eccentric wheel 13 to drive the push-pull plate body 32, which can generate a reaction force in the opposite direction on the movable base 22, so that the movable base 22 drives the support plate body 31 to move in the opposite direction to the push-pull plate body 32, thereby easily realizing the misalignment movement of the two plate bodies and reducing the force on the frame assembly 20, enabling the sorting device to drive the push-pull plate body 32 at a higher frequency, improving the material sorting sufficiency and sorting efficiency.

[0036] To prevent the movable base 22 from sliding off the fixed base 21, four limiting columns 211 vertically fixed in a rectangular distribution are provided on the fixed base 21. In the length direction, the length between two adjacent limiting columns 211 > the length of the movable base 22. In the width direction, the width between two adjacent limiting columns 211 ≤ the width of the movable base 22. The sliding range of the movable base 22 is restricted by the limiting columns 211. At the same time, a buffer member 212 for weakening the impact force of the movable base 22 is horizontally provided on the limiting columns 211 at the same height as the movable base 22 to improve the overall stability of the frame assembly 20 during operation. More preferably, the buffer member 212 is a spring.

[0037] Preferably, a plurality of second rollers 221 are fixed on the upper surface of the movable base 22. A U-shaped limiting member 341 is provided at the lower end of the second support base 34. The second rollers 221 are located within the U-shaped limiting member 341, and the second rollers 221 and the U-shaped limiting member 341 are arranged in one-to-one correspondence. Inverting the U-shaped limiting member 341 above the second rollers 221 can prevent dust and powder from accumulating inside the U-shaped limiting member 341, avoid increasing the sliding resistance of the second rollers 221, and thus improve the movement smoothness of the movable base 22. Through the cooperation of the second rollers 221 and the U-shaped limiting member 341, the push-pull disc body 32 can be effectively prevented from deviating from the movement route, and the friction force can be reduced, thereby reducing the power consumption of the motor 11.

[0038] In a stepped push-pull sorting device of the present invention, the sieve disc assembly 30 is composed of a support disc body 31 and a push-pull disc body 32 that are inclined and can move relatively out of alignment. By utilizing the repeated directional change movement of the push-pull disc body 32 and the component force of the material moving downward along the slope caused by the inclined setting, the two act together to enable the object to move quickly. At the same time, the first sieve plate 311 and the second sieve plate 321 that are arranged alternately are further combined, so that the large and small materials straddling the first sieve plate 311 and the second sieve plate 321 can partially receive the thrust from the second sieve plate 321, and part of the materials (the materials on the first sieve plate 311) are not affected by force, thereby continuously adjusting the placement direction of the materials, enabling the materials to not only move in a straight line but also continuously adjust the movement direction during the forward movement, and thus gradually approaching the nearby sieve holes. Preferably, the present invention also improves the surface structure of the second sieve plate 321 and designs it as a stepped upper surface, so that the height difference change range between the second sieve plate 321 and the adjacent first sieve plate 311 during the movement process is larger, generating a certain vibration effect on the materials and also prompting the materials to continuously change their positions and directions, improving the sufficiency of over-screen sorting.

[0039] The driving mechanism 10 of the present invention only needs to apply a horizontal pushing and pulling force to the sieve disc assembly 30. For heavier materials, there is no need to use a high-load driving mechanism 10, which reduces the equipment cost and can ensure the screening sufficiency.

[0040] The above is only the specific implementation manner of the present invention, and it does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A stepped push-pull sorting device, characterized in that: It includes a driving mechanism, a frame assembly and a sieve plate assembly. The sieve plate assembly includes a support plate body, a push-pull plate body, a first support seat and a second support seat. The support plate body and the push-pull plate body are arranged side by side to form a sieve plate for carrying materials. The support plate body and the push-pull plate body are both inclined. The support plate body is fixed to the frame assembly through the first support seat. The push-pull plate body is slidably connected to the frame assembly through the second support seat. The driving mechanism drives the push-pull plate body to move back and forth in the horizontal direction.

2. The stepped push-pull sorting device according to claim 1, characterized in that: The support plate body includes a plurality of first sieve plates. The push-pull plate body includes a plurality of second sieve plates. The first sieve plates and the second sieve plates are staggered and arranged side by side. The first sieve plates are fixed to the frame assembly through the first support seat. The second sieve plates are slidably connected to the frame assembly through the second support seat.

3. The stepped push-pull sorting device according to claim 2, wherein: The first sieve plates and the second sieve plates are evenly spaced.

4. The stepped push-pull sorting device according to claim 2, wherein: A continuous multi-level step is provided on the surface of the second sieve plate from the starting end to the ending end, and sieve holes are provided on each step. The surface of the first sieve plate is a plane with a plurality of sieve holes spaced apart.

5. The stepped push-pull sorting device according to claim 1, wherein: The frame assembly includes a fixed base, a movable base and a plurality of sliding support components. Each of the sliding support components is fixed to the fixed base. The movable base is arranged above the sliding support components and is slidably connected to the sliding support components. The driving mechanism and the first support seat are both fixed on the movable base. The second support seat is slidably connected to the movable base.

6. The stepped push-pull sorting device according to claim 5, characterized in that: The driving mechanism includes a motor, a transmission wheel, an eccentric wheel, a coupling shaft, a flywheel and a connecting rod. The transmission wheel and the flywheel are connected by the coupling shaft. The eccentric wheel is sleeved on the coupling shaft. The motor drives the transmission wheel to rotate. The transmission wheel drives the eccentric wheel to rotate. A connecting seat is fixed at the end of the push-pull plate body near the driving mechanism. The ends of each of the second sieve plates are fixedly connected to the connecting seat. One end of the connecting rod is movably sleeved on the eccentric wheel, and the other end is hinged to the connecting seat.

7. The stepped push-pull sorting device according to claim 5, characterized in that: Each of the sliding support components is spaced on both sides of the fixed base. The sliding support component is a first roller and a vertical rod. One end of the vertical rod is vertically fixed to the fixed base, and the other end is installed with the first roller. The first roller is slidably connected to the movable base.

8. A stepped push-pull sorting device according to claim 5, characterized in that: Four limiting columns vertically fixed in a rectangular distribution are provided on the fixed base. In the length direction, the length between two adjacent limiting columns > the length of the movable base. In the width direction, the width between two adjacent limiting columns ≤ the width of the movable base. A buffer for weakening the impact force of the movable base is horizontally provided on the limiting columns at the same height as the movable base.

9. The stepped push-pull sorting device according to claim 8, characterized in that: The buffer is a spring.

10. A stepped push-pull sorting device according to claim 5, characterized in that: A plurality of second rollers are fixed on the upper surface of the movable base. A U-shaped limiting member is provided at the lower end of the second support seat. The second rollers are located in the U-shaped limiting members, and the second rollers and the U-shaped limiting members are arranged in one-to-one correspondence.

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