Stepped push-pull sorting device

Abstract

The utility model relates to a stepped push-and-pull sorting device which comprises a driving mechanism, a machine frame assembly and a sieve tray assembly, the sieve tray assembly comprises a supporting tray body, a push-and-pull tray body, a first supporting seat and a second supporting seat, and the supporting tray body and the push-and-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 material separating device has the advantages that the device is driven to drive the sieve plate assembly to move repeatedly in a staggered and direction-changing mode in the horizontal direction to push materials, the materials are rapidly separated according to the difference of stress directions and stress sizes of the materials of different sizes and weights, and meanwhile the requirement for the load performance of a driving mechanism is lowered.

Description

Technical Field

[0001] This utility model relates to the field of material sorting equipment, and in particular to a stepped push-pull sorting device. Background Technology

[0002] Most existing material screening devices use a drive mechanism to drive a vibrator, which forces the screen disc to vibrate up and down. This vibration causes the material in the screen disc to shift, and materials that meet the specifications are separated through the screen holes. However, when the material loaded on the screen disc contains heavy objects, such as metal objects like nails, nuts, and small iron pieces that need to be separated from construction waste or leftover materials, these waste materials often contain large steel plates, cement blocks, stones, etc., placing extremely high demands on the load capacity of both the drive mechanism and the vibrator. Furthermore, since the screen discs used for sorting construction waste are relatively large, the weight of the entire screen disc can reach five or six tons after being loaded by a loader. Therefore, simply increasing the power of a single device is insufficient to meet the vibration requirements; multiple devices must work together, leading to a significant increase in equipment costs. Therefore, existing methods of screening materials by vibration are clearly unsuitable for sorting heavy materials. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a stepped push-pull sorting device. This device drives the screen plate assembly to move repeatedly and in different directions in the horizontal direction, pushing the material. It also utilizes the different force directions and magnitudes of materials of different sizes and weights to quickly separate the materials, while reducing the load performance requirements of the drive mechanism.

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

[0005] A stepped push-pull sorting device includes a drive mechanism, a frame assembly, and a screen assembly. The screen assembly includes a support plate, a push-pull plate, a first support base, and a second support base. The support plate and the push-pull plate are arranged side by side to form a screen for carrying materials. Both the support plate and the push-pull plate are inclined. The support plate is fixed to the frame assembly by the first support base, and the push-pull plate is slidably connected to the frame assembly by the second support base. The drive mechanism drives the push-pull plate to move back and forth in the horizontal direction.

[0006] More preferably, the support plate includes multiple first screen plates, and the push-pull plate includes multiple second screen plates. The first screen plates and the second screen plates are arranged alternately side by side. The first screen plates are fixed to the frame assembly by a first support seat, and the second screen plates are slidably connected to the frame assembly by a second support seat.

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

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

[0009] More preferably, the rack assembly includes a fixed base, a movable base, and a plurality of sliding support assemblies, each of the sliding support assemblies being fixed on the fixed base, the movable base being disposed above the sliding support assemblies and being slidably connected to the sliding support assemblies; the drive mechanism and the first support seat are both fixed on the movable base, and the second support seat is slidably connected to the movable base.

[0010] More preferably, the drive mechanism includes a motor, a transmission wheel, an eccentric wheel, a connecting shaft, a flywheel, and a connecting rod. The transmission wheel and the flywheel are connected by a connecting shaft. The eccentric wheel is sleeved on the connecting 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 plate near the drive mechanism. The ends of each second screen plate are fixedly connected to the connecting seat. One end of the connecting rod is movably sleeved with the eccentric wheel, and the other end is hinged to the connecting seat.

[0011] More preferably, each of the sliding support components is spaced apart 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 equipped with the first roller. The first roller is slidably connected to the movable base.

[0012] More preferably, four limiting posts are vertically fixed on the fixed base in a rectangular distribution. In the length direction, the length between two adjacent limiting posts is greater than the length of the movable base. In the width direction, the width between two adjacent limiting posts is less than or equal to the width of the movable base. A buffer member for reducing the impact force of the movable base is horizontally arranged on the limiting posts at the same height as the movable base.

[0013] More preferably, the buffer is a spring.

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

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model discloses a stepped push-pull sorting device, the screen plate assembly of which consists of an inclined support plate and a push-pull plate that can move in a staggered manner. By utilizing the repeated directional movement of the push-pull plate and the downward force of the material along the slope caused by the inclined setting, the object moves continuously under the combined action of the two, thereby achieving rapid screening.

[0017] 2. The present invention provides a stepped push-pull sorting device, which further combines the staggered arrangement of the first screen plate and the second screen plate, so that large materials or small materials that span the first screen plate and the second screen plate can be partially pushed and partially unforced. This allows the material to continuously adjust its placement direction as it moves forward, thereby gradually approaching the nearby screen holes and improving the sorting efficiency.

[0018] 3. This utility model also improves the surface structure of the second screen plate by designing it as a stepped upper surface, which makes the height difference between the second screen plate and the adjacent first screen plate change more widely during the movement. This generates a certain vibration effect on the material and also causes the material to continuously change its position and direction, thereby improving the sufficiency of screening and separation.

[0019] 4. The drive mechanism of this utility model only requires applying a horizontal pushing and pulling force to the screen plate assembly. For heavier materials, there is no need to use a high-load drive mechanism, which reduces equipment costs and ensures sufficient screening.

[0020] 5. The frame mechanism of this utility model adopts a combination of a fixed frame and a movable frame, with the drive mechanism set on the movable frame. This allows the drive mechanism itself to be subjected to a reaction force, thereby driving the support plate to move in the opposite direction. This is more conducive to realizing the misalignment movement of the two plates and reduces the force exerted by the drive mechanism on the frame assembly. This allows the utility model to drive the push-pull plate at a higher frequency, improving the fullness 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. Attached Figure Description

[0021] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 3 This is a front view of the push-pull disc of this utility model when it moves backward;

[0023] Figure 4 This is a front view of the push-pull disc of this utility model when it moves forward;

[0024] Figure 5 This is a schematic diagram of the push-pull disc body of this utility model;

[0025] Figure 6 This is a schematic diagram of the support plate of this utility model.

[0026] Explanation of reference numerals in the attached figures:

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

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

[0029] 30. Screen plate assembly; 31. Support plate body; 311. First screen plate; 32. Push-pull plate body; 321. Second screen plate; 3211. Step; 322. Connecting seat; 33. First support seat; 34. Second support seat; 341. U-shaped limiting component. Detailed Implementation

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

[0031] Please see Figures 1 to 6 A stepped push-pull sorting device includes a drive mechanism 10, a frame assembly 20, and a screen assembly 30. The screen assembly 30 includes a support plate 31, a push-pull plate 32, a first support base 33, and a second support base 34. The support plate 31 and the push-pull plate 32 are arranged side-by-side to form a screen for carrying materials. Both the support plate 31 and the push-pull plate 32 are inclined. The support plate 31 is fixed to the frame assembly 20 via the first support base 33, and the push-pull plate 32 is slidably connected to the frame assembly 20 via the second support base 34. The drive mechanism 10 drives the push-pull plate 32 to reciprocate horizontally. The drive mechanism 10 pushes and pulls the push-pull disc 32 while keeping the support disc 31 stationary. On one hand, the misalignment of the two discs causes all or part of the material on the screen plate located on the push-pull disc 32 to be subjected to pushing or pulling forces, thereby causing the material to move. Material that meets the specifications can be separated from the adjacent screen holes. On the other hand, the reciprocating motion of the push-pull disc 32 causes the material on the push-pull disc 32 to repeatedly change direction. Furthermore, the tilting of the disc allows the material to accelerate its descent under its own gravity when the push-pull disc 32 changes direction, thus improving screening efficiency. Since the drive device only needs to apply a horizontal force to the screen plate assembly 30, and the screen plate assembly 30 only experiences a slight increase in friction when loaded with heavy material, the drive mechanism 10 does not need to generate an upward thrust greater than the weight of the material being lifted, reducing the load capacity requirements of the drive mechanism 10.

[0032] To better facilitate material movement through the relative, staggered motion of the support plate 31 and the push-pull plate 32, the support plate 31 includes multiple first screen plates 311, and the push-pull plate 32 includes multiple second screen plates 321. The first screen plates 311 and second screen plates 321 are arranged alternately side-by-side. The first screen plates 311 are fixed to the frame assembly 20 via first support seats 33, and the second screen plates 321 are slidably connected to the frame assembly 20 via second support seats 34. Preferably, the first screen plates 311 and second screen plates 321 are evenly spaced, allowing the material to be fully subjected to pushing or pulling forces. Overlapping materials will also interact due to differences in the magnitude of their respective forces and the mutual collisions between adjacent materials, enabling materials meeting specifications to be sorted out more quickly.

[0033] Better yet, please refer to Figure 5 The surface of the second sieve plate 321 has a continuous multi-level step 3211 from the starting end to the end, and each level of step 3211 is provided with sieve holes. The surface of the first sieve plate 311 is a plane with multiple sieve holes spaced apart. Please refer to [link / reference]. Figure 3 and Figure 4 The function of the multi-level steps 3211 is to promote the movement of materials. As the steps 3211 move back and forth, the materials also vibrate in the vertical direction due to the height difference, which further promotes the movement of materials. At the same time, the steps 3211 on the second screen plate 321 are higher or lower than the adjacent first screen plate 311 during movement ("higher" or "lower" is related to the relative position of the first screen plate 311 and the second screen plate 321), and the alternating heights promote the movement of materials.

[0034] This embodiment provides a commonly used drive mechanism 10, but its implementation is not limited to this. The drive mechanism 10 includes a motor 11, a transmission wheel 12, an eccentric wheel 13, a connecting rod 14, a connecting shaft, and a flywheel 15. The motor 11 can be connected to the transmission wheel 12 via a belt (not shown), driving the transmission wheel 12 to rotate. The transmission wheel 12 and the flywheel 15 are connected via a connecting shaft, and the eccentric wheel 13 is sleeved on the connecting shaft, with the transmission wheel 12 driving the eccentric wheel 13 to rotate. A connecting seat 322 is fixed to the end of the push-pull disc 32 near the drive 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 with the eccentric wheel 13, and the other end is hinged to the connecting seat 322. In practical applications, to prevent the connecting seat 15 from colliding with the support plate 31, the following settings can be made: when the rotation point of the eccentric wheel 13 is closest to the support plate 31, the end face of the support plate 31 is made flush with the end face of the push-pull plate 32.

[0035] Because the drive mechanism 10 needs to repeatedly push and pull the screen plate assembly 30 at a high frequency, it exerts a large force on the frame assembly 20. To improve the reliability and service life of the frame assembly 20, while ensuring that the staggered distance between the first screen plate 311 and the second screen plate 321 remains unchanged, this embodiment improves the frame assembly 20. The frame assembly 20 includes a fixed base 21, a movable base 22, and multiple sliding support assemblies 23. Each sliding support assembly 23 is fixed on the fixed base 21. The movable base 22 is located above the sliding support assembly 23 and is slidably connected to the sliding support assembly 23. The drive mechanism 10 and the first support seat 33 are both fixed on the movable base 22, and the second support seat 34 is slidably connected to the movable base 22. Each of the sliding support components 23 is spaced apart on both sides of the fixed base 21. Each sliding support component 23 consists of 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 fitted with the first roller 231. The first roller 231 is slidably connected to the movable base 22. The first roller 231 not only provides support and sliding but also acts as a shock absorber. Through the sliding support components 23, the movable base 22 can push or pull the push-pull disc 32 using the eccentric wheel 13, generating a counterforce on the movable base 22. This causes the movable base 22 to drive the support disc 31 and the push-pull disc 32 in opposite directions, easily achieving the misalignment of the two discs and reducing the force on the frame assembly 20. This allows the sorting device to drive the push-pull disc 32 at a higher frequency, improving material sorting sufficiency and efficiency.

[0036] To prevent the movable base 22 from slipping off the fixed base 21, four rectangularly distributed limiting posts 211 are vertically fixed to the fixed base 21. In the length direction, the length between two adjacent limiting posts 211 is greater than the length of the movable base 22; in the width direction, the width between two adjacent limiting posts 211 is less than or equal to the width of the movable base 22. The limiting posts 211 restrict the sliding range of the movable base 22. Simultaneously, a buffer 212 is horizontally installed on each limiting post 211 at the same height as the movable base 22 to reduce the impact force of the movable base 22, improving the overall stability of the frame assembly 20 during operation. More preferably, the buffer 212 is a spring.

[0037] More preferably, a plurality of second rollers 221 are fixed on the upper surface of the movable base 22, and a U-shaped limiting member 341 is provided at the lower end of the second support base 34. The second rollers 221 are located inside the U-shaped limiting member 341, and the second rollers 221 and the U-shaped limiting members 341 are arranged in a one-to-one correspondence. By inverting the U-shaped limiting member 341 above the second rollers 221, dust and powder can be prevented from accumulating inside the U-shaped limiting member 341, thus avoiding increasing the sliding resistance of the second rollers 221 and improving the smoothness of the movement of the movable base 22. Through the cooperation of the second rollers 221 and the U-shaped limiting member 341, the push-pull plate 32 can be effectively prevented from deviating from the movement path, and friction can be reduced, thereby reducing the power consumption of the motor 11.

[0038] This utility model discloses a stepped push-pull sorting device, in which the screen plate assembly 30 is composed of a support plate 31 and a push-pull plate 32 that are inclined and can move in a relatively staggered manner. The repeated directional movement of the push-pull plate 32 and the downward force of the material along the slope caused by the inclined arrangement work together to make the object move quickly. At the same time, it is further combined with the staggered arrangement of the first screen plate 311 and the second screen plate 321, so that the large and small materials that are straddling the first screen plate 311 and the second screen plate 321 can be partially pushed by the second screen plate 321, while the materials (located on the first screen plate 311) are not subjected to force. This continuously adjusts the placement direction of the material, so that the material does not only move in a straight line, but can also continuously adjust its movement direction during the forward movement, thereby gradually approaching the nearby screen holes. Furthermore, the present invention also improves the surface structure of the second screen plate 321 by designing it as a stepped upper surface, which makes the height difference between the second screen plate 321 and the adjacent first screen plate 311 change more widely during the movement, generating a certain vibration effect on the material and causing the material to continuously change its position and direction, thereby improving the sufficiency of screening and separation.

[0039] The drive mechanism 10 of this invention only requires applying a horizontal pushing and pulling force to the screen assembly 30. For heavier materials, there is no need to use a high-load drive mechanism 10, which reduces equipment costs and ensures sufficient screening.

[0040] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A stepped push-pull sorting device, characterized in that: The device includes a drive mechanism, a frame assembly, and a screen assembly. The screen assembly includes a support plate, a push-pull plate, a first support base, and a second support base. The support plate and the push-pull plate are arranged side by side to form a screen for carrying materials. Both the support plate and the push-pull plate are inclined. The support plate is fixed to the frame assembly by the first support base, and the push-pull plate is slidably connected to the frame assembly by the second support base. The drive mechanism drives the push-pull plate 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 includes multiple first screen plates, and the push-pull plate includes multiple second screen plates. The first screen plates and second screen plates are arranged alternately side by side. The first screen plates are fixed to the frame assembly by a first support seat, and the second screen plates are slidably connected to the frame assembly by a second support seat.

3. The stepped push-pull sorting device according to claim 2, characterized in that: The first sieve plate and the second sieve plate are evenly spaced apart.

4. The stepped push-pull sorting device according to claim 2, characterized in that: The surface of the second sieve plate is provided with a continuous multi-level step from the starting end to the end, and each level of step is provided with sieve holes. The surface of the first sieve plate is a plane with multiple sieve holes spaced apart.

5. A stepped push-pull sorting device according to claim 2, characterized in that: The frame assembly includes a fixed base, a movable base, and multiple sliding support assemblies. Each sliding support assembly is fixed on the fixed base, and the movable base is located above the sliding support assembly and is slidably connected to the sliding support assembly. The drive mechanism and the first support seat are both fixed on the movable base, and the second support seat is slidably connected to the movable base.

6. A 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 connecting shaft, a flywheel, and a connecting rod. The transmission wheel and the flywheel are connected by a connecting shaft. The eccentric wheel is sleeved on the connecting 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 plate near the driving mechanism. The ends of each second screen plate are fixedly connected to the connecting seat. One end of the connecting rod is movably sleeved with the eccentric wheel, and the other end is hinged to the connecting seat.

7. A stepped push-pull sorting device according to claim 5, characterized in that: Each of the sliding support components is spaced apart on both sides of the fixed base. Each sliding support component consists of 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 fitted 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 posts are vertically fixed on the fixed base in a rectangular arrangement. In the length direction, the length between two adjacent limiting posts is greater than the length of the movable base. In the width direction, the width between two adjacent limiting posts is less than or equal to the width of the movable base. A buffer is horizontally installed on each limiting post at the same height as the movable base to reduce the impact force of the movable base.

9. A 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: The upper surface of the movable base is fixed with a plurality of second rollers, and the lower end of the second support is provided with a U-shaped limiting member. The second rollers are located inside the U-shaped limiting member, and the second rollers and the U-shaped limiting member are arranged in a one-to-one correspondence.

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