Plastic masterbatch injection molding pretreatment metal particle screening device

Abstract

This utility model discloses a screening device for metal particles in the pretreatment of plastic masterbatch injection molding, including a screening box with a feed inlet at its top; multiple roller-shaped electromagnets arranged at staggered intervals below the feed inlet; and collection boxes with open tops symmetrically arranged on both sides of the screening box. The side walls of the screening box have clearance holes corresponding to the positions of the collection boxes for the collection boxes to enter and exit. This utility model, by employing a design of multiple roller-shaped electromagnets arranged at staggered intervals, not only increases the adsorption area but also effectively disperses the material, ensuring that fine metal impurities mixed in are fully adsorbed. This design greatly improves screening efficiency and quality, reducing the problem of incomplete screening caused by material aggregation.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, and in particular relates to a metal particle screening device for pretreatment of plastic masterbatch injection molding. Background Technology

[0002] In the plastics manufacturing industry, especially in the production of plastic masterbatch, various metal impurities are inevitably mixed in. These metal impurities may affect the quality of the final product. Therefore, it is particularly important to effectively screen and purify the plastic masterbatch before it enters subsequent processing steps such as injection molding.

[0003] Traditional magnetic separators typically use a single electromagnet structure. This structure often lacks an effective dispersion mechanism for materials, which may cause some materials to aggregate and not be fully screened, thus reducing the overall screening efficiency. Furthermore, the collection of impurities is also relatively inconvenient. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] This utility model provides a metal particle screening device for pretreatment of plastic masterbatch injection molding, comprising:

[0006] A screening box, wherein a feed inlet is connected to the top of the screening box;

[0007] Electromagnets, multiple roller-shaped electromagnets are arranged at staggered intervals below the feed inlet;

[0008] Collection boxes, with open tops, are symmetrically arranged on both sides of the screening box;

[0009] The side wall of the screening box is provided with clearance holes corresponding to the position of the collection box, allowing the collection box to enter and exit its interior.

[0010] Screening state: When the electromagnet is energized, the material enters the screening box from the feed port. The material is dispersed when it passes through multiple roller-shaped electromagnets, and the metal impurities mixed in are attracted by the electromagnets.

[0011] Cleaning status: The collection box enters the screening box through the clearance hole. The electromagnet is de-energized, and the metal impurities adsorbed on the electromagnet fall into the collection box.

[0012] As a preferred embodiment of the above technical solution, a driving component is also included. The driving component is disposed on the outer wall of the screening box near the collection box, and the output end of the driving component is detachably connected to the collection box on the same side.

[0013] As a preferred embodiment of the above technical solution, an extension frame is provided at one end of the collection box that is far apart from each other, a magnet is provided at the output end of the drive component, a magnet is provided on the extension frame, and the magnets attract each other and can be separated from each other by external force to the left and right.

[0014] As a preferred embodiment of the above technical solution, the bottom end of the screening box is connected to a material hopper.

[0015] The beneficial effects of this utility model are as follows:

[0016] (1) By adopting a design of multiple roller electromagnets arranged in a staggered manner, this utility model not only increases the adsorption area but also effectively disperses the material, ensuring that the fine metal impurities mixed in can be fully adsorbed. This design greatly improves the screening efficiency and quality and reduces the problem of incomplete screening caused by material aggregation.

[0017] (2) The collection box of this utility model can freely enter and exit the screening box through the clearance hole, and is magnetically connected to the drive component, which facilitates quick separation and removal. It is convenient to clean the collected metal impurities or replace the collection box. This design greatly simplifies the daily maintenance of the equipment and reduces maintenance costs. Attached Figure Description

[0018] Figure 1 The diagram shown is a front view of the screening device in the embodiment;

[0019] Figure 2 The diagram shown is a partial cross-sectional view of the screening device in the embodiment. Figure 1 ;

[0020] Figure 3 The diagram shown is a partial cross-sectional view of the screening device in the embodiment. Figure 2 ;

[0021] Figure 4 The diagram shown is a schematic representation (top view) of the collection box in the embodiment;

[0022] Figure 5 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0023] Reference numerals: 10, screening box; 11, hopper; 12, feed inlet; 20, electromagnet; 30, collection box; 31, extension frame; 40, driving component; 301, magnet one; 401, magnet two. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 As shown, Figure 1 The diagram shown is a front view of the screening device in the embodiment. Figure 2 The diagram shown is a partial cross-sectional view of the screening device in the embodiment. Figure 1 ; Figure 3 The diagram shown is a partial cross-sectional view of the screening device in the embodiment. Figure 2 ;

[0027] This device includes:

[0028] The screening box 10 has a material hopper 11 connected to its bottom end and a feed inlet 12 connected to its top end.

[0029] Electromagnet 20, multiple roller-shaped electromagnets 20 are arranged at staggered intervals below the feed inlet 12;

[0030] Collection boxes 30, with open tops, are symmetrically arranged on both sides of the screening box 10;

[0031] The side wall of the screening box 10 is provided with a clearance hole for the collection box 30 to enter and exit its interior, corresponding to the position of the collection box 30.

[0032] Screening state: When the electromagnet 20 is energized, the material enters the screening box 10 from the feed inlet 12. The material is dispersed when it passes through multiple roller-shaped electromagnets 20, and the metal impurities mixed in are adsorbed by the electromagnets 20.

[0033] Cleaning status: The collection box 30 enters the screening box 10 through the clearance hole. The electromagnet 20 is de-energized, and the metal impurities adsorbed on the electromagnet 20 fall into the collection box 30.

[0034] The screening box 10 is responsible for containing materials and screening metal impurities. The hopper 11 at the bottom of the screening box 10 is used to store the screened plastic masterbatch, and the feed inlet 12 allows the plastic masterbatch to enter.

[0035] Multiple roller-shaped electromagnets 20 are arranged at staggered intervals below the feed inlet 12. When the electromagnets 20 are energized, they can generate a magnetic field to attract metal impurities passing through them and help to evenly disperse the plastic masterbatch that is gathered together, making it easier to detect and attract the metal impurities contained therein.

[0036] Specifically, in one embodiment, there are seven electromagnets 20 arranged in three rows, with the number of electromagnets distributed in an alternating sequence of two-three-two.

[0037] The collection box 30 can enter and exit the screening box 10 through the clearance hole on the side wall of the screening box 10, and is used to collect metal impurities that fall from the electromagnet 20 when the power is off. Figure 2 The image shows the screening process. After screening, the plastic masterbatch can directly enter the bottom hopper 11. Figure 3 The image shows the cleaning state. The collection box 30 is inside the screening box 10 and located below the electromagnet 20. When the electromagnet 20 is de-energized, the adsorbed metal impurities will fall into the collection box 30 under the action of gravity, making it easy to clean later.

[0038] It also includes a drive unit 40, which is located on the outer side wall of the screening box 10 near the collection box 30. The output end of the drive unit 40 is detachably connected to the collection box 30 on the same side.

[0039] The drive unit 40 can effectively control the entry and exit of the collection box 30, improve operational efficiency and accuracy, and also facilitate maintenance and cleaning. In one embodiment, the drive unit 40 is an electric telescopic rod, and the drive unit 40 can also be a hydraulic cylinder or a pneumatic cylinder in the prior art.

[0040] The detachable connection between the drive unit 40 and the collection box 30 allows the collection box 30 to be removed later, facilitating the subsequent cleaning of the metal impurities collected inside.

[0041] like Figure 2 , Figure 4 , Figure 5 As shown, Figure 2 The diagram shown is a partial cross-sectional view of the screening device in the embodiment. Figure 1 ; Figure 4 The diagram shown is a schematic representation (top view) of the collection box in the embodiment; Figure 5 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0042] An extension frame 31 is provided at one end of the collection box 30 that is far apart from each other. A magnet 401 is provided at the output end of the drive unit 40. A magnet 301 is provided on the extension frame 31. The magnet 401 and the magnet 301 attract each other and can be separated from each other by external force to the left and right.

[0043] The extension frame 31 is L-shaped, and the magnet 401 and magnet 301 can attract each other or separate left and right or up and down under the action of external force, so as to realize the detachable connection between the collection box 30 and the driving component 40.

[0044] Working principle:

[0045] ①Preparation stage: Ensure that the collection box 30 is in the initial position and that it is connected to the extension frame 31 of the collection box 30 by magnet 401 on the drive unit 40 and magnet 301 on the extension frame 31 of the collection box 30.

[0046] ② Screening stage: The material enters the screening box 10 from the feed inlet 12. Multiple roller electromagnets 20 are energized to generate a magnetic field to adsorb metal impurities in the material. At the same time, these roller electromagnets 20 are staggered and spaced to help disperse the material, making it easier for metal impurities to be adsorbed. As the material rolls or slides along the surface of the electromagnets 20, the metal impurities mixed in it are adsorbed by the electromagnets 20, completing the preliminary screening process.

[0047] ③ Cleaning preparation stage: When it is necessary to clean the metal impurities adsorbed on the electromagnet 20, start the drive unit 40 so that it drives the collection box 30 to enter the screening box 10 through the clearance hole on the side wall of the screening box 10 and be located below the electromagnet 20.

[0048] ④ Cleaning stage: When the electromagnet 20 is de-energized and loses its magnetic force, the metal impurities adsorbed on it fall into the collection box 30. After cleaning is completed, the drive unit 40 is restarted to pull the collection box 30 containing the metal impurities back to its original position.

[0049] ⑤ Maintenance stage: If more detailed cleaning or maintenance is required for the collection box 30, external force can be applied to separate magnet 401 and magnet 301, thereby easily removing the collection box 30.

[0050] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A plastic masterbatch injection molded pre-treatment metal particle screening device characterized by, include: A screening box (10) is provided with a feed inlet (12) at its top; Electromagnets (20), multiple roller-shaped electromagnets (20) are arranged at staggered intervals below the feed inlet (12); Collection boxes (30), with open tops, are symmetrically arranged on both sides of the screening box (10); The side wall of the screening box (10) is provided with a clearance hole corresponding to the position of the collection box (30) for the collection box (30) to enter and exit its interior; Screening state: When the electromagnet (20) is energized, the material enters the screening box (10) from the feed port (12). The material is dispersed when it passes through multiple roller-shaped electromagnets (20), and the metal impurities mixed in are adsorbed by the electromagnets (20). Cleaning status: The collection box (30) enters the screening box (10) through the clearance hole. The electromagnet (20) is de-energized, and the metal impurities adsorbed on the electromagnet (20) fall into the collection box (30).

2. The metal particle screening device for pretreatment of plastic masterbatch injection molding according to claim 1, characterized in that, It also includes a drive unit (40), which is located on the outer side wall of the screening box (10) near the collection box (30), and the output end of the drive unit (40) is detachably connected to the collection box (30) on the same side.

3. The metal particle screening device for pretreatment of plastic masterbatch injection molding according to claim 2, characterized in that, An extension frame (31) is provided at one end of the collection box (30) that is far apart from each other. A magnet (401) is provided at the output end of the drive unit (40). A magnet (301) is provided on the extension frame (31). The magnet (401) and the magnet (301) attract each other and can be separated from each other by external force.

4. The metal particle screening device for pretreatment of plastic masterbatch injection molding according to claim 1, characterized in that, The bottom end of the screening box (10) is connected to a hopper (11).

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