A TPR plastic pellet finished product screening device
By designing a TPR plastic pellet finished product screening device with a rotating bottom plate and gradually narrowing screen holes, the problem of low efficiency caused by multiple screenings was solved, and efficient and low-cost plastic pellet screening was achieved.
Patent Information
- Application Number
- CN202522493621.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-25
AI Technical Summary
In existing technologies, the screening process for plastic granules requires multiple operations, increases equipment costs, and results in low efficiency.
Design a TPR plastic granule finished product screening device. The device uses a sieve cylinder with an annular inner cavity, a spiral bottom plate and a spiral material distribution channel. The screen mesh size gradually decreases to achieve multi-level screening. The granules automatically roll onto screens of different sizes for step-by-step screening.
It achieves low-cost, high-efficiency multi-level screening, reduces the number of equipment, improves screening efficiency, and simplifies the operation process.
Smart Images
Figure CN224940328U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of TPR plastic granule production, specifically to a TPR plastic granule finished product screening device. Background Technology
[0002] After the plastic granules are dried and shaped, particles that are not up to the required size are removed by screening to ensure that they can melt evenly and be fed stably during subsequent processing.
[0003] Equipment for sieving objects by size generally uses a screening machine. The screening machine uses a screen with a vibrating motor to remove smaller particles and leave larger particles.
[0004] Smaller plastic pellets require a screen replacement and another feeding and screening process to obtain finished plastic pellets with appropriate particle size, which is undoubtedly a rather cumbersome process.
[0005] If two or more screens are arranged on a screening machine at the same time, the number of matching vibration motors will also need to be increased. From the perspective of cost and normal operation, this is not appropriate. Therefore, a TPR plastic granule finished product screening device is provided. Utility Model Content
[0006] I. Technical problems to be solved
[0007] The technical problem this invention aims to solve is that when plastic granules are sieved based on size, the unqualified granules vary in size and require multiple sieve removals.
[0008] II. Technical Solution
[0009] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a TPR plastic granule finished product screening device, comprising: a screening cylinder containing an annular inner cavity, wherein a bottom plate extending in a spiral manner is installed inside the screening cylinder, and a material distribution channel with a spiral structure is formed in the inner cavity.
[0010] Multiple screens that extend in the same direction as the base plate are evenly installed in the fabric channel, and a partition is formed between adjacent screens or between the screens and the base plate.
[0011] The top of the screening cylinder is provided with an inlet that communicates with the highest partition layer, and the bottom of the screening cylinder is provided with multiple outlets that correspond to each partition layer.
[0012] Furthermore, a support bracket is installed below the screening cylinder to support and carry it.
[0013] Furthermore, a funnel is connected to the feed inlet.
[0014] Furthermore, a plurality of receiving tanks corresponding to the discharge outlets are placed below the screening cylinder, and handles are connected to the receiving tanks.
[0015] Furthermore, the screen mesh in the fabric channel, according to its relative distribution position, carries a screen aperture that gradually decreases from top to bottom.
[0016] III. Beneficial Effects
[0017] The advantages of this invention compared to the prior art are as follows: the device arranges the screens in an inclined state, allowing the plastic granules to automatically roll down from the screens, and multiple screens are placed below in sequence. The screens are arranged from top to bottom, and the screen aperture gradually decreases according to the screening requirements, thereby achieving the purpose of multi-level screening of different sizes of particles in one go without external equipment control, at low cost and high efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the external structure of a TPR plastic granule finished product screening device according to this utility model. Figure 1 .
[0019] Figure 2 This is a schematic diagram of the external structure of a TPR plastic granule finished product screening device according to this utility model. Figure 2 .
[0020] Figure 3 This is a schematic diagram of the internal structure of a TPR plastic granule finished product screening device according to this utility model. Figure 1 .
[0021] Figure 4 This is a schematic diagram of the internal structure of a TPR plastic granule finished product screening device according to this utility model. Figure 2 .
[0022] As shown in the figure: 1. Screening cylinder, 2. Feed inlet, 3. Funnel, 4. Bottom plate, 5. Divider, 6. Screen, 7. Discharge outlet, 8. Support, 9. Receiving tank, 10. Handle. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings.
[0024] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a TPR plastic granule finished product screening device, combined with the attached... Figure 1-2 It includes: a sieve cylinder 1 containing an annular inner cavity, with a through hole of a small diameter at the center; or, if cost is not a concern, a solid structure can be used. A support 8 is installed below the sieve cylinder 1 to support and bear its load.
[0025] Combined with appendix Figure 3-4 The screening cylinder 1 is equipped with a bottom plate 4 that extends in a spiral manner, forming a spiral material channel in the inner cavity. The bottom plate 4 is a curved plate that extends along a spiral line. It firstly uses a gradually downward inclined plate. Particles placed on its surface slide down along the surface of the bottom plate 4 under the action of gravity, realizing an automatic material transportation state. Secondly, it is arranged around a center point in a cylindrical spiral distribution state, which can improve the space utilization rate.
[0026] Multiple screens 6 are evenly installed in the fabric channel, which are in the same extension state as the base plate 4. The screens 6 in the fabric channel have gradually smaller sieve apertures from top to bottom according to their relative distribution positions.
[0027] A partition 5 is formed between adjacent screens 6 or between screen 6 and base plate 4. Plastic granules roll upward and downward along the inclined screens 6 or base plate 4 in the partition 5.
[0028] There is only one base plate 4 in the screening cylinder 1. The number and size of the screens 6 in the material distribution channel formed by the base plate 4 and the screen holes on the screens 6 can be set according to objective needs. In the material distribution channel, the screen holes on the screens 6 at the top have the largest diameter, and those at the bottom have the smallest diameter. They are arranged in a regular manner from top to bottom. The size of the screen holes is configured according to the shape of the plastic product particles to be screened.
[0029] The screening process starts from the top. All materials are first placed on the top screen 6. Particles that can pass through the screen holes of the screen 6 slide down and fall to the lower layer. Larger particles are trapped in this partition 5 and continue to roll down along the screen 6. The adjacent lower screen 6 continues the same process to further screen the particles. Finally, the smallest particles fall onto the bottom plate 4.
[0030] The top of the screening cylinder 1 is provided with a feed inlet 2 that communicates with the highest partition 5. A funnel 3 is connected to the feed inlet 2, which facilitates the feeding of small TPR plastic products into the device. The top of the screening cylinder 1 is covered with a top cover, which closes the top of each partition 5. However, the feed inlet 2 is opened above the uppermost partition 5 in the material feeding channel, from which materials are fed and the screening work begins.
[0031] The bottom end of the screening cylinder 1 is connected to a number of discharge ports 7 corresponding to each partition 5. Each partition 5 extends to the bottom of the screening cylinder 1 and is equipped with an independent discharge port 7, so that TPR plastic particles of different sizes are discharged into the corresponding areas.
[0032] Below the screening cylinder 1, there are multiple receiving tanks 9 corresponding to the discharge outlet 7. The receiving tanks 9 are connected to handles 10. The support 8 needs to have sufficient height to reserve enough space for the receiving tanks 9.
[0033] The receiving tank 9 is a receiving container, that is, a very ordinary can, box, etc., which is placed below the discharge port 7 to receive the falling TPR plastic pellets. Each tank receives TPR plastic pellets of similar size.
[0034] In specific implementations of this utility model, the overall size of the device can be set according to the objective usage scenario, but regardless of the size, the main structure remains the same.
[0035] TPR plastic granules that need to be screened by size are fed into the screening cylinder 1 through the top feed port 2. The plastic granules entering the screening cylinder 1 are first received by the screen 6 at the top of the material channel. The screen 6 is continuously inclined downwards, and the granules roll down along the surface of the screen 6.
[0036] The rolling process is quite vigorous, and the area of screen 6 is relatively large, so any plastic particles have the opportunity to come into contact with screen 6. When a particle reaches screen 6, if there happens to be a screen hole below it, larger particles cannot pass through the screen hole and continue to slide down the surface of screen 6. However, smaller particles can pass through the screen hole and come to the lower partition 5, and come into contact with the next layer of screen 6. Particles that reach the lower layer of screen 6 continue to move in the same way as described above. Smaller particles will go to the next lower layer of screen 6, thus separating them according to their different sizes and completing the sorting work.
[0037] Therefore, the particles in the partition 5 and on the screen 6 will all slide down to the bottom of the screening cylinder 1 and fall out from the discharge port 7. Several receiving tanks 9 are placed below the discharge port 7 to receive and store the various types of TPR plastic particles after sorting.
[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A TPR plastic particle finished product screening device, characterized in that, include: A screening cylinder (1) containing an annular inner cavity is provided with a bottom plate (4) extending in a spiral manner inside the screening cylinder (1), and a spiral-shaped fabric channel is formed in the inner cavity; Multiple screens (6) that extend in the same direction as the base plate (4) are evenly installed in the fabric channel, and a partition (5) is formed between adjacent screens (6) or between screens (6) and the base plate (4). The top of the screening cylinder (1) is provided with a feed inlet (2) that communicates with the highest partition (5), and the bottom of the screening cylinder (1) is provided with a number of discharge outlets (7) that correspond to each partition (5).
2. The TPR plastic granule finished product screening device according to claim 1, characterized in that: A support bracket (8) is installed below the screening cylinder (1) to support and bear its load.
3. The TPR plastic granule finished product screening device according to claim 1, characterized in that: A funnel (3) is connected to the feed inlet (2).
4. The TPR plastic granule finished product screening device according to claim 1, characterized in that: Below the screening cylinder (1), there are multiple receiving tanks (9) corresponding to the discharge outlet (7), and handles (10) are connected to the receiving tanks (9).
5. The TPR plastic granule finished product screening device according to claim 1, characterized in that: The screen (6) in the fabric channel, according to its relative distribution position, carries a screen hole diameter that gradually decreases from top to bottom.