Screening device for plastic product raw materials

Abstract

The utility model relates to the field of plastic product processing, and discloses a plastic product raw material screening device which comprises a bottom plate, supporting plates are fixedly connected to the four corners of the upper surface of the bottom plate correspondingly, a supporting rod is fixedly connected between the tops of the two supporting plates on the same side, and the two ends of the outer portions of the supporting rods on the two sides are sleeved with sliding blocks correspondingly; a screening box is jointly installed among the side faces of the four sliding blocks, a material collecting hopper is integrally formed below the screening box, guide rods are fixedly connected to the four corners of the lower surface of the top plate, a pressing plate is jointly installed between the bottoms of the two second air cylinders, and the bottoms of the second air cylinders push the pressing plate to move downwards. The pressing plate moves downwards along the inner wall of the screening box, then the multiple jacking protrusions can be inserted into the corresponding screening holes in the bottom of the screening box one by one, and therefore part of raw material particles blocked in the screening holes are jacked out, the screening holes in the screening box are rapidly cleaned in time, and the screening effect on the raw material particles after long-time machining of the screening box is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of plastic product processing, and in particular to a screening device for plastic product raw materials. Background Technology

[0002] In the production of plastic products, raw material screening is a key process to ensure product quality. It is mainly used to remove foreign objects, clumps, or particles with unqualified particle size from the raw materials.

[0003] Traditional vibrating screens rely on a single amplitude or frequency adjustment, which can easily cause raw material particles to clog the screen mesh. However, the screen is usually set in the internal cavity of the screening device, making it inconvenient for workers to clean the clogged screen. As the device operates for a long time, the screening effect is affected.

[0004] Therefore, those skilled in the art have provided a screening device for raw materials of plastic products to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the problems mentioned in the background art, this application provides a screening device for raw materials of plastic products.

[0006] The screening device for raw materials of plastic products provided in this application adopts the following technical solution:

[0007] A screening device for plastic product raw materials includes a base plate, with support plates fixedly connected to the four corners of the upper surface of the base plate. A support rod is fixedly connected between the tops of two support plates on the same side. Slider blocks are sleeved at both ends of the support rods on both sides. A screening box is installed between the sides of the four sliders. A material hopper is integrally formed below the screening box. A top plate is installed above the screening box. Guide rods are fixedly connected to the four corners of the lower surface of the top plate. Second cylinders are installed at both ends of the lower surface of the top plate. A pressure plate is installed between the bottoms of two second cylinders. Multiple top protrusions are evenly installed on the lower surface of the pressure plate.

[0008] Preferably, L-shaped support rods are installed at the four corners of the upper surface of the pressure plate, and the tops of the four L-shaped support rods are penetrated by corresponding guide rods.

[0009] Preferably, a limit ring is fixedly sleeved at one end of each of the two support rods.

[0010] Preferably, the screening box has a door on one side, and a feeding port is installed at an angle on the side of the door.

[0011] Preferably, a support frame is installed between the top of the support plates at the two corners, and a No. 1 cylinder is installed at both ends of the outer side of the support frame, and the telescopic ends of the No. 1 cylinders on both sides are fixed to the side of the screening box.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The pressure plate is pushed down by the bottom of the second cylinder, causing it to move down along the inner wall of the screening box. Then, multiple protrusions can be inserted into the corresponding screen holes at the bottom of the screening box, thereby pushing out some of the raw material particles that are blocked in the screen holes. This achieves timely and rapid cleaning of the screening holes inside the screening box, ensuring the screening effect of raw material particles after long-term processing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the screening device in this application;

[0015] Figure 2 This application is Figure 1 A structural diagram from a first-person perspective on the other side;

[0016] Figure 3 This application is Figure 2 A magnified structural diagram of a corner section;

[0017] Figure 4 This is a schematic diagram of the structure connecting the components below the top plate in this application;

[0018] Figure 5 This is a cross-sectional structural diagram of the screening box in this application.

[0019] Explanation of reference numerals in the attached diagram: 1. Top plate; 2. L-shaped support rod; 3. Pressure plate; 4. Feed port; 5. Top protrusion; 6. Support frame; 7. Support plate; 8. Screening box; 9. Bottom plate; 10. Guide rod; 11. Cylinder No. 1; 12. Support rod; 13. Cylinder No. 2; 14. Box door; 15. Gathering hopper; 16. Sliding block; 17. Limiting ring. Detailed Implementation

[0020] 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.

[0021] refer to Figures 1-5As shown, this application discloses a screening device for plastic product raw materials, including a base plate 9. Support plates 7 are fixedly connected to the four corners of the upper surface of the base plate 9. Support rods 12 are fixedly connected between the tops of two support plates 7 on the same side. Slider blocks 16 are sleeved at both ends of the two support rods 12. A screening box 8 is installed between the sides of the four sliders 16, allowing the screening box 8 to reciprocate along the guide of the two support rods 12. A hopper 15 is integrally formed below the screening box 8 to facilitate the collection of screened raw material particles through the hopper 15. A top plate 1 is installed above the screening box 8. Guide rods 10 are fixedly connected to the four corners of the lower surface of the top plate 1. Two cylinders 13 are installed at both ends of the surface. A pressure plate 3 is installed between the bottoms of the two cylinders 13. Multiple protrusions 5 are evenly installed on the lower surface of the pressure plate 3. Multiple screen holes are opened at the bottom of the screening box 8, and each screening position corresponds one-to-one with each protrusion 5. The cylinders 13 can be activated, and then the bottom of the cylinders 13 pushes the pressure plate 3 down. Then the pressure plate 3 moves down along the inner wall of the screening box 8, so that the multiple protrusions 5 can be inserted into the corresponding screen holes at the bottom of the screening box 8, thereby pushing out some of the raw material particles that are blocked in the screen holes. This achieves timely and rapid cleaning of the screening holes inside the screening box 8, ensuring the screening effect of the raw material particles after long-term processing.

[0022] refer to Figures 1-5 As shown, L-shaped support rods 2 are installed at the four corners of the upper surface of the pressure plate 3, and the tops of the four L-shaped support rods 2 are all penetrated by corresponding guide rods 10, which further improves the stability of the pressure plate 3 during the up and down movement.

[0023] refer to Figure 1 and Figure 2 as well as Figure 3 As shown, a limit ring 17 is fixedly sleeved on one end of each of the two support rods 12. The limit ring 17 can limit the slider 16 on one side, ensuring that the screening box 8 can accurately return to the corresponding position after each processing, so that the pressure plate 3 can accurately enter the screening box 8.

[0024] refer to Figure 1 and Figure 5 As shown, a door 14 is provided on one side of the screening box 8, which facilitates the removal of raw material particles that remain inside the screening box 8. At the same time, a feeding port 4 is installed at an angle on the side to facilitate the feeding of materials into the screening box 8.

[0025] refer to Figure 1 and Figure 2As shown, a support frame 6 is installed between the top of the support plate 7 at the two corners. A cylinder 11 is installed at both ends of the support frame 6. The telescopic ends of the cylinders 11 on both sides are fixed to the side of the screening box 8. When in use, the cylinders 11 are started, and the telescopic ends of the cylinders 11 can drive the screening box 8 to move back and forth, thereby screening the raw materials inside the screening box 8.

[0026] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] The implementation principle of a screening device for raw materials of plastic products according to an embodiment of this application is as follows:

[0029] When it is necessary to clean the bottom screen holes of the screening box 8, the second cylinder 13 can be activated. Then, the bottom of the second cylinder 13 pushes the pressure plate 3 down, and then the pressure plate 3 moves down along the inner wall of the screening box 8, so that multiple top protrusions 5 can be inserted into the corresponding screen holes at the bottom of the screening box 8 one by one, thereby pushing out some of the raw material particles that are blocked in the screen holes, realizing timely and rapid cleaning of the screening holes inside the screening box 8, and ensuring the screening effect of the screening box 8 on raw material particles after long-term processing.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A screening device for raw material of plastic products, comprising a base plate (9), characterized in that, Support plates (7) are fixedly connected to the four corners of the upper surface of the base plate (9). Support rods (12) are fixedly connected between the tops of the two support plates (7) on the same side. Slider blocks (16) are sleeved on both ends of the support rods (12) on both sides. Screening boxes (8) are installed together between the sides of the four sliders (16). A material hopper (15) is integrally formed below the screening box (8). A top plate (1) is installed above the screening box (8). Guide rods (10) are fixedly connected to the four corners of the lower surface of the top plate (1). Second cylinders (13) are installed at both ends of the lower surface of the top plate (1). A pressure plate (3) is installed between the bottoms of the two second cylinders (13). Multiple top protrusions (5) are evenly installed on the lower surface of the pressure plate (3).

2. The screening device for raw material of plastic product according to claim 1, characterized in that: L-shaped support rods (2) are installed at the four corners of the upper surface of the pressure plate (3), and the tops of the four L-shaped support rods (2) are all penetrated by the corresponding guide rods (10).

3. The screening device for raw material of plastic product according to claim 1, characterized in that: Limit rings (17) are fixedly sleeved on one end of the support rods (12) on both sides.

4. The screening device for raw material of plastic product according to claim 1, characterized in that: The screening box (8) is provided with a door (14) on one side, and a feeding port (4) is installed obliquely on the side of the door (14).

5. The screening device for raw material of plastic product according to claim 1, characterized in that: A support frame (6) is installed between the top of the support plate (7) at the two corners. A cylinder (11) is installed at both ends of the support frame (6), and the extension ends of the cylinders (11) on both sides are fixed to the side of the screening box (8).

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