Plastic particle mixing and scrap iron removing device

Abstract

The invention discloses a plastic particle mixing and scrap iron removing device which comprises a mixing box, a floating cover plate and a magnetic bar, a cover ring is arranged at the end of the mixing box, guide columns extending upwards are arranged on the cover ring at intervals, a fixing plate is arranged at the tops of the guide columns, a lifting plate is arranged below the fixing plate, and the magnetic bar is arranged on the floating cover plate. The floating cover plate is rotatably arranged below the lifting plate and goes in and out of the mixing box along with lifting of the lifting plate, and the magnetic bars are arranged at the bottom of the floating cover plate at intervals in the radial direction of the floating cover plate and extend downwards. In this way, according to the plastic particle mixing and scrap iron removing device, the magnetic rod can descend to be inserted into the mixing box, the floating cover plate is used for driving the magnetic rod to rotate, scrap iron is attracted while plastic particles are stirred, contact between the magnetic rod and the plastic particles is increased, and the scrap iron removing efficiency and maintenance convenience are improved.

Description

Technical Field

[0001] The invention relates to the field of mechatronics, and in particular to a plastic particle mixing and iron chip removing device. Background Art

[0002] In the process of producing plastic products through injection molding machines, it is necessary to first heat the plastic particles to melt them, then apply high pressure to the molten plastic to make it shoot into the injection mold, fill the cavity of the injection mold, and then cool and form.

[0003] In order to improve the performance of plastic parts, plastic particles need to be mixed with additives, such as lubricants, stabilizers, plasticizers, fillers and other additives, which can be put into the mixer together with the plastic particles in proportion for mixing.

[0004] In addition, some plastic particles are made of recycled materials, and iron filings are inevitably mixed in during the production process. Ordinary mixers do not have the function of removing iron filings. In order to remove iron filings during the mixing of plastic particles, magnets can be installed in the mixer, but the magnets are located in the mixer shell, and the probability of contact with plastic particles is small, the efficiency of removing iron filings is low, and it is difficult to clean the iron filings after the magnet surface absorbs them, so improvements are needed. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a plastic particle mixing and iron chip removal device to achieve the mixing of plastic particles and the adsorption of iron chips, thereby improving the efficiency of iron chip removal and the convenience of maintenance.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a plastic particle mixing and iron chip removal device, including: a mixing box, a floating cover plate and a magnetic rod, a cover ring is arranged at the end of the mixing box, guide pillars extending upward are arranged at intervals on the cover ring, a fixed plate is arranged on the top of the guide pillar, a lifting plate is arranged under the fixed plate, the floating cover plate is rotatably arranged under the lifting plate, and enters and exits the mixing box with the lifting and lowering of the lifting plate, and the magnetic rods are arranged at intervals along the radial direction of the floating cover plate at the bottom of the floating cover plate and extend downward.

[0007] In a preferred embodiment of the present invention, the fixed plate is provided with a cylinder or a hydraulic cylinder for driving the lifting plate to rise and fall.

[0008] In a preferred embodiment of the present invention, a motor for driving the floating cover plate to rotate is disposed on the lifting plate.

[0009] In a preferred embodiment of the present invention, the lifting plate is provided with guide holes corresponding to the guide pillars.

[0010] In a preferred embodiment of the present invention, the floating cover plate is a disc structure, and the outer diameter of the floating cover plate is not greater than the inner diameter of the mixing box.

[0011] In a preferred embodiment of the present invention, a feed pipe is provided on an upper portion of one side of the mixing box.

[0012] In a preferred embodiment of the present invention, a discharge valve is provided at the bottom of the mixing box.

[0013] The beneficial effects of the present invention are as follows: a plastic particle mixing and iron chip removal device pointed out by the present invention drives the floating cover plate to descend through the lifting plate, so that the magnetic rod is inserted into the mixing box, and the floating cover plate is used to drive the rotation of a row of magnetic rods, and the plastic particles are stirred and mixed while the iron chips are adsorbed, thereby increasing the contact between the magnetic rod and the plastic particles and improving the efficiency of iron chip removal. Moreover, the magnetic rod can be separated from the mixing box as the floating cover plate rises, so that the iron chips on the surface of the magnetic rod can be cleaned conveniently, and maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which: Figure 1 It is a structural schematic diagram of a preferred embodiment of a plastic particle mixing and iron chip removal device of the present invention; Figure 2 yes Figure 1 Schematic diagram of the structure in which the floating cover plate descends into the mixing box. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1~Figure 2 , the embodiment of the present invention includes: like Figure 1 The plastic particle mixing and iron chip removal device shown comprises: a mixing box 1, a floating cover plate 3 and a magnetic bar 2. A feeding pipe 10 is provided on the upper part of one side of the mixing box 1, which is convenient for connecting a feeder to feed plastic particles and additives into the mixing box 1. A discharge valve 11 is provided at the bottom of the mixing box 1. After the mixing is completed, the discharge valve 11 is opened to discharge the plastic particles.

[0017] A cover ring 9 is provided at the end of the mixing box 1. The cover ring 9 can be fixed concentrically to the edge of the end of the mixing box 1 by screws, which is convenient to assemble and has a stable structure. Guide pillars 8 extending upward are arranged at intervals on the cover ring 9. A fixing plate 5 is provided on the top of the guide pillars 8. The fixing plate 5 is supported by the guide pillars 8 and can be fixed by screws. The structure is relatively firm.

[0018] A lifting plate 4 is arranged below the fixed plate 5. In this embodiment, the lifting plate 4 is provided with guide holes corresponding to the guide pillars 8 to guide the lifting of the lifting plate 4. The fixed plate 5 is provided with a cylinder 7 or a hydraulic cylinder for driving the lifting plate 4 to rise and fall. The cylinder 7 or the hydraulic cylinder can be controlled by PLC, and the operation is simple.

[0019] The floating cover plate 3 is rotatably arranged below the lifting plate 4, and enters and exits the mixing box 1 as the lifting plate 4 is raised and lowered. In the present embodiment, a motor 6 for driving the floating cover plate 3 to rotate is arranged on the lifting plate 4. The motor 6 can be controlled by PLC. The motor 6 is first rotated quickly to improve the mixing efficiency, and then rotated slowly to ensure the adsorption effect of iron filings in the plastic particles.

[0020] like Figure 2 As shown, the floating cover plate 3 is a disc structure, and the outer diameter of the floating cover plate 3 is not larger than the inner diameter of the mixing box 1, allowing the floating cover plate 3 to descend into the top of the inner cavity of the mixing box 1. The gap between the outer circle of the floating cover plate 3 and the inner wall of the mixing box 1 is smaller than the particle size of the plastic particles, so as to limit the position of the plastic particles in the mixing box 1 and avoid the problem of plastic particles flying out during the mixing process, with high safety.

[0021] The magnetic rods 2 are arranged at intervals along the radial direction of the floating cover plate 3 at the bottom of the floating cover plate 3 and extend downward. The plastic particles and additives are fed into the mixing box 1 through the feeding pipe 10. Figure 2 As shown, the floating cover plate 3 is driven down by the lifting plate 4, so that the magnetic rod 2 is inserted into the mixing box 1, and the plastic particles are limited at the top of the mixing box 1 by the floating cover plate 3. The motor 6 is first used to drive the floating cover plate 3 and a row of magnetic rods 2 to rotate at high speed to improve the mixing efficiency of the plastic particles, and then the low-speed rotation is used to achieve the adsorption of iron filings in the plastic particles, thereby increasing the contact between the magnetic rod 2 and the plastic particles and improving the efficiency of removing iron filings. Then the floating cover plate 3 stops rotating and is reset as the lifting plate 4 rises. Figure 1 As shown, it is convenient to clean the iron filings adsorbed on the surface of the magnetic bar 2.

[0022] In summary, the plastic particle mixing and iron chip removal device disclosed in the present invention can mix plastic particles and remove iron chips, thereby improving the mixing and iron chip removal efficiency and facilitating maintenance.

[0023] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic particle mixing and iron chip removal device, characterized in that: include: A mixing box, a floating cover plate and a magnetic rod, wherein a cover ring is arranged at the end of the mixing box, guide pillars extending upward are arranged at intervals on the cover ring, a fixed plate is arranged on the top of the guide pillar, a lifting plate is arranged below the fixed plate, the floating cover plate is rotatably arranged below the lifting plate, and moves in and out of the mixing box with the lifting and lowering of the lifting plate, and the magnetic rods are arranged at intervals along the radial direction of the floating cover plate at the bottom of the floating cover plate and extend downward.

2. The plastic particle mixing and iron chip removal device according to claim 1, characterized in that: The fixed plate is provided with a cylinder or a hydraulic cylinder for driving the lifting plate to rise and fall.

3. The plastic particle mixing and iron chip removal device according to claim 1, characterized in that: The lifting plate is provided with a motor for driving the floating cover plate to rotate.

4. The plastic particle mixing and iron chip removal device according to claim 1, characterized in that: The lifting plate is provided with guide holes corresponding to the guide pillars.

5. The plastic particle mixing and iron chip removal device according to claim 1, characterized in that: The floating cover plate is a disc structure, and the outer diameter of the floating cover plate is not greater than the inner diameter of the mixing box.

6. The plastic particle mixing and iron chip removal device according to claim 1, characterized in that: A feeding pipe is arranged on the upper part of one side of the mixing box.

7. The plastic particle mixing and iron chip removal device according to claim 1, characterized in that: A discharge valve is arranged at the bottom of the mixing box.

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