Multi-stage sorting device for plastic particles

Abstract

The utility model discloses a multi-stage sorting device for plastic particles, which relates to the field of plastic manufacturing and comprises a storage bin, a first screen frame is arranged at the upper end in the storage bin, first surface layers extend outwards at equal intervals on the outer side of the first screen frame, first convex parts are arranged on the two sides of the first surface layers, and a second screen frame is arranged at the lower end of the first screen frame. An electric telescopic rod body is arranged on one side of the first screen frame, a multi-foot hitting piece is arranged at the front end of the electric telescopic rod body, a vertical cylinder is arranged at the top end of a first convex part, a push piece is arranged on one side of the vertical cylinder, a pull cylinder is arranged on one side of the back face of the push piece, and a tension spring is arranged at the bottom end of the pull cylinder. According to the multi-stage sorting device for the plastic particles, the tension spring is driven by the bottom end part of the pull cylinder to stretch out, draw back and extend, so that when the force of knocking the vertical cylinder by the push piece is too large, the forward impact force of the push piece is reduced by the tension spring at the bottom end of the pull cylinder, and damage to the surface of the first screen frame due to too large frequency is avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic manufacturing technology, specifically a multi-stage sorting device for plastic particles. Background Technology

[0002] With the rapid development of the plastics processing industry, the requirements for the precision and purity of plastic granules are becoming increasingly stringent. Multi-stage sorting devices play a crucial role in the production process of plastic granules. Traditional sorting devices typically use a vibrating screen frame to sieve out the material inside the frame under vibration, thereby achieving material sorting.

[0003] However, existing vibrating screen separators have some significant problems. First, vibration frequency and vibration amplitude are two key factors affecting the screen separator's performance. Vibration frequencies that are too high or too low will prevent effective material separation, affecting sorting accuracy. Excessive vibration amplitude can cause material to jump, leading to uneven sorting; insufficient amplitude will fail to effectively propel the material forward, reducing sorting efficiency.

[0004] Furthermore, different sizes of plastic granules have different requirements for vibration frequency and amplitude, and existing equipment often struggles to adjust these parameters flexibly according to the material characteristics, resulting in poor sorting performance. Additionally, prolonged vibration operation can cause fatigue and loosening of the screen frame structure, further affecting the stability and reliability of the sorting process.

[0005] Therefore, there is an urgent need for a multi-stage sorting device for plastic particles to improve the sorting effect and meet the high standards of the modern plastics processing industry. This invention is proposed against this backdrop, aiming to provide a multi-stage sorting device with optimized structure and significant sorting effect, providing a strong guarantee for the efficient and accurate sorting of plastic particles. Utility Model Content

[0006] The purpose of this invention is to provide a multi-stage sorting device for plastic particles to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage sorting device for plastic particles, comprising: a storage bin, a first screen frame provided at the upper end of the storage bin, a first surface layer extending outward at equal intervals on the outer side of the first screen frame, first protrusions provided on both sides of the first surface layer, an electric telescopic rod body provided on one side of the first screen frame, a multi-foot striking plate provided at the front end of the electric telescopic rod body, a vertical cylinder provided at the top of the first protrusion, a push plate provided on one side of the vertical cylinder, a pull cylinder provided on one side of the back of the push plate, and a tension spring provided at the bottom end of the pull cylinder;

[0008] An auxiliary structure is provided at the bottom of the first sieve frame.

[0009] Furthermore, the vertical cylinder and the first protrusion are fixedly connected, and the height of the vertical cylinder is equal to the height of the push plate, so that the vertical cylinder can be moved forward after the push plate moves.

[0010] Furthermore, the multi-legged striking piece has a multi-segment structure, and the inner angle of the multi-legged striking piece is a right angle, which makes it easy for the multi-legged striking piece to strike all the push pieces when it moves in a single motion.

[0011] Furthermore, the pull tube is composed of a horizontal cylinder and a vertical part. The vertical part of the pull tube is fixedly connected to the middle of the tension spring. This allows the horizontal cylinder of the pull tube to drive the tension spring to extend and retract when the vertical part of the pull tube drives the tension spring to extend and retract, while the horizontal cylinder of the pull tube can drive the tension spring to extend and retract at the same amplitude.

[0012] Furthermore, the auxiliary structure includes a subframe, a second surface layer, a stick, and a second protrusion. The stick is provided at the lower end of the surface of the first surface layer. The second protrusion extends equidistantly from the outer side of the subframe. The second surface layer is provided on one side of the second protrusion. The lower outer side of the stick abuts against one side of the second protrusion. The geometric center of the subframe and the geometric center of the first screen frame are on the same straight line, which facilitates that the material particles discharged from the bottom of the first screen frame can directly enter the interior of the subframe for secondary sorting.

[0013] Furthermore, the adhesive rod has a Z-shaped structure, and the lengths of both ends of the adhesive rod extending into the inner sides of the first and second surfaces are the same, so that when the upper part of the adhesive rod moves with the first screen frame, the lower part of the adhesive rod can strike the surface of the second protrusion on the outer side of the subframe.

[0014] Furthermore, the end of the adhesive rod extending into the inner side of the first surface layer is fixedly connected to the first surface layer to prevent the adhesive rod from detaching.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses an electric telescopic rod to drive a multi-legged striking plate to move forward, which in turn pushes a push plate to move forward. The push plate strikes one side of the vertical cylinder, and as it moves forward, it drives a pull cylinder to move. The bottom part of the pull cylinder drives a tension spring to extend and retract. In this way, when the force of the push plate striking the vertical cylinder is too great, the tension spring at the bottom of the pull cylinder reduces the forward impact force of the push plate, thus avoiding damage to the surface of the first screen frame caused by excessive frequency.

[0017] 2. In this utility model, a stick is fixed to the inner side of the first surface layer on the outer side of the first screen frame. When the first screen frame moves forward, it drives the stick to move. The bottom of the stick strikes one side of the second protrusion on the outer side of the auxiliary frame. The second protrusion drives the auxiliary frame to move back and forth at the bottom of the first screen frame. In this way, the auxiliary frame is placed at the bottom of the first screen frame for secondary screening. Attached Figure Description

[0018] Figure 1 This is a first exploded view of the external structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the first appearance structure of the present utility model;

[0020] Figure 3 This utility model Figure 1 A schematic diagram of the enlarged structure of a;

[0021] Figure 4 This utility model Figure 2 A schematic diagram of the enlarged structure of b;

[0022] Figure 5 This is a schematic diagram of the second appearance structure of the present utility model;

[0023] Figure 6 This is a schematic diagram of the first sieve frame structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the second exploded structure of the present invention.

[0025] In the diagram: 1. Storage compartment; 2. First sieve frame; 3. Multi-foot striking plate; 4. Pull cylinder; 5. Tension spring; 6. Vertical cylinder; 7. Electric telescopic rod body; 8. Push plate; 9. First surface layer; 10. First protrusion; 11. Auxiliary structure; 111. Subframe; 112. Second surface layer; 113. Sticking rod; 114. Second protrusion. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-7 As shown, a multi-stage sorting device for plastic particles includes: a storage bin 1, a first screen frame 2 is provided at the upper end of the storage bin 1, a first surface layer 9 extends outward at equal intervals on the outer side of the first screen frame 2, a first protrusion 10 is provided on both sides of the first surface layer 9, an electric telescopic rod body 7 is provided on one side of the first screen frame 2, a multi-foot striking plate 3 is provided at the front end of the electric telescopic rod body 7, a vertical cylinder 6 is provided at the top of the first protrusion 10, a push plate 8 is provided on one side of the vertical cylinder 6, a pull cylinder 4 is provided on one side of the back of the push plate 8, and a tension spring 5 is provided at the bottom end of the pull cylinder 4.

[0028] An auxiliary structure 11 is provided at the bottom of the first sieve frame 2.

[0029] As for the rest, since the electric telescopic rod body 7 acts as a single power source to drive the multi-legged striking plate 3 to move back and forth, the multi-legged striking plate 3 is a multi-section right-angled structure. The multiple protrusions of the multi-legged striking plate 3 will strike the vertical cylinder 6 at the top of the first protrusion 10 on the outer side of the first screen frame 2 under the push of the electric telescopic rod body 7. The vertical cylinder 6 is forced to move the first screen frame 2 forward or backward. When the push plate 8 moves back and forth, the pull cylinder 4 on one side of the push plate 8 drives the tension spring 5 to perform unidirectional extension and retraction between the first protrusion 10 and the first surface layer 9. The extension and retraction amplitude of the tension spring 5 will be reduced, thereby weakening the movement amplitude of the push plate 8.

[0030] This has resulted in the following effects and novel technologies:

[0031] The multi-stage plastic particle sorting device provided in this embodiment achieves efficient and accurate sorting through a unique design. The first screen frame 2 in the storage bin 1 is driven by the electric telescopic rod body 7 and the impact of the multi-foot striking plate 3 causes the vertical cylinder 6 to be forced to move the screen frame forward or backward, realizing the vibration sorting of the screen frame. This design ensures that the vibration frequency and amplitude are stable and controllable, effectively improving the sorting accuracy.

[0032] Meanwhile, the cooperation between the push plate 8, the pull cylinder 4, and the tension spring 5 enables the push plate 8 to move in one direction between the first protrusion 10 and the first surface layer 9. The extension and contraction amplitude of the tension spring 5 is reduced, thereby weakening the movement amplitude of the push plate 8. This buffering mechanism effectively avoids the jumping and disorder of materials during the sorting process, ensuring the uniformity and stability of the sorting.

[0033] Furthermore, the auxiliary structure 11 further enhances the support and stability of the screen frame, improving the overall durability of the device. In summary, this embodiment achieves efficient and precise multi-stage sorting of plastic particles through ingenious structural design and power transmission mechanism, significantly improving the sorting effect and the reliability of the device.

[0034] like Figures 1-7 As shown, a multi-stage sorting device for plastic granules includes an auxiliary structure 11 comprising a subframe 111, a second surface layer 112, a sticking rod 113, and a second protrusion 114. The sticking rod 113 is disposed at the lower end of the surface of the first surface layer 9. The second protrusion 114 extends equidistantly from the outer side of the subframe 111. The second surface layer 112 is disposed on one side of the second protrusion 114. The lower outer side of the sticking rod 113 abuts against one side of the second protrusion 114. The geometric center of the subframe 111 and the geometric center of the first screen frame 2 are on the same straight line.

[0035] The rest are fixedly provided with a sticking rod 113 between the first surface layer 9 and the first protrusion 10. The bottom part of the sticking rod 113 is placed on the first screen frame 2. When the first screen frame 2 moves forward, it drives the sticking rod 113 to move. The sticking rod 113 strikes the second protrusion 114 on the outside of the auxiliary frame 111. The second protrusion 114 is forced to drive the auxiliary frame 111 to move back and forth inside the storage bin 1. At this time, the auxiliary frame 111 performs secondary screening on the material that falls from the first screen frame 2.

[0036] This has resulted in the following effects and novel technologies:

[0037] When the first screen frame 2 moves forward under the drive of the electric telescopic rod body 7, the sticking rod 113 fixed between the first surface layer 9 and the first protrusion 10 also moves. The bottom part of the sticking rod 113 strikes the second protrusion 114 on the outside of the sub-frame 111, causing the sub-frame 111 to move back and forth inside the storage chamber 1. This design enables the sub-frame 111 to perform secondary screening of the material falling from the first screen frame 2, effectively improving the sorting precision.

[0038] In addition, the geometric center of the auxiliary frame 111 is on the same straight line as the geometric center of the first screen frame 2, which ensures the stability and symmetry of the device during operation and reduces the sorting error caused by offset. The setting of the second surface layer 112 further optimizes the flow and distribution of materials and improves the screening efficiency.

[0039] This embodiment achieves multi-stage sorting of plastic particles through the ingenious design of the auxiliary structure 11, especially the secondary screening function, which significantly improves the accuracy and efficiency of sorting and provides a higher quality raw material guarantee for the subsequent processing of plastic particles.

[0040] Working principle: When using this multi-stage sorting device for plastic granules, firstly, the first screen frame 2 and the auxiliary frame 111 are placed inside the storage bin 1. At this time, the electric telescopic rod body 7 is activated, which drives the multi-legged striking plate 3 to move forward. The multiple protrusions of the multi-legged striking plate 3 strike the push plate 8, causing the push plate 8 to move forward under force. At the same time, the pull cylinder 4 on one side of the push plate 8 is also moved forward under force. The pull cylinder 4 drives the tension spring 5 to retract in a specified direction. At this time, the force of the multi-legged striking plate 3 striking the vertical cylinder 6 will be reduced, ensuring that the first screen frame 2 will not vibrate when screening materials inside the storage bin 1. If the amplitude is too large, the first screen frame 2 may become loose or fall off. Since the first surface layer 9 on the outside of the first screen frame 2 is welded with a stick 113, and the bottom of the stick 113 is placed between the second protrusion 114 and the second surface layer 112 on the outside of the auxiliary frame 111, when the first screen frame 2 moves to the front end, the first screen frame 2 drives the stick 113 to strike the second protrusion 114 on one side of the second surface layer 112, thereby causing the auxiliary frame 111 to vibrate. At this time, the auxiliary frame 111 performs secondary screening of the material particles falling into the bottom of the first screen frame 2. This is the working principle of the multi-stage sorting device for plastic particles.

[0041] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A multi-stage sorting device for plastic granules, comprising: Storage compartment (1), characterized in that a first screen frame (2) is provided at the upper end of the storage compartment (1), a first surface layer (9) extends outward at equal intervals on the outer side of the first screen frame (2), a first protrusion (10) is provided on both sides of the first surface layer (9), an electric telescopic rod body (7) is provided on one side of the first screen frame (2), a multi-foot striking plate (3) is provided at the front end of the electric telescopic rod body (7), a vertical cylinder (6) is provided at the top of the first protrusion (10), a push plate (8) is provided on one side of the vertical cylinder (6), a pull cylinder (4) is provided on one side of the back of the push plate (8), and a tension spring (5) is provided at the bottom end of the pull cylinder (4). An auxiliary structure (11) is provided at the bottom of the first sieve frame (2).

2. The multi-stage sorting device for plastic granules according to claim 1, characterized in that, The vertical tube (6) and the first protrusion (10) are fixedly connected, and the height of the vertical tube (6) is equal to the height of the push plate (8).

3. The multi-stage sorting device for plastic granules according to claim 1, characterized in that, The multi-legged striking piece (3) has a multi-segment structure, and the inner angle of the multi-legged striking piece (3) is a right angle.

4. The multi-stage sorting device for plastic granules according to claim 1, characterized in that, The pull tube (4) is composed of a horizontal cylinder and a vertical part, and the vertical part of the pull tube (4) is fixedly connected to the middle of the tension spring (5).

5. The multi-stage sorting device for plastic granules according to claim 1, characterized in that, The auxiliary structure (11) includes a subframe (111), a second surface layer (112), a stick (113), and a second protrusion (114). The lower end of the surface of the first surface layer (9) is provided with a stick (113). The second protrusion (114) is provided at equal distances on the outer side of the subframe (111). The second surface layer (112) is provided on one side of the second protrusion (114). The lower outer side of the stick (113) abuts against one side of the second protrusion (114). The geometric center of the subframe (111) and the geometric center of the first sieve frame (2) are on the same straight line.

6. The multi-stage sorting device for plastic granules according to claim 5, characterized in that, The adhesive rod (113) has a Z-shaped structure, and the two ends of the adhesive rod (113) extend into the inner side of the first surface layer (9) and the second surface layer (112) for the same length.

7. A multi-stage sorting device for plastic granules according to claim 5, characterized in that, The end of the adhesive rod (113) extending into the inner side of the first surface layer (9) is fixedly connected to the first surface layer (9).

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