CN202759615U - Electromagnetic heating equipment - Google Patents

Abstract

The utility model belongs to the technical field of plastic and rubber equipment, specifically discloses electromagnetic heating equipment. The equipment comprises a hopper, a feeding pipe arranged on the hopper, a screw bolt arranged at the center of feeding pipe, a die head arranged at the tail end of the feeding pipe, a plurality of semi-circular asbestos casings, and excitation coils arranged in the asbestos casings in a winding manner, wherein the plurality of semi-circular asbestos casings are symmetrically arranged in the axial direction on the outer side of the feeding pipe, and are arranged on the plane of the die head; and the axes of the excitation coils are vertical to the axis of the feeding pipe. The electromagnetic heating equipment is convenient for sectional heating by adopting a heating manner similar to the resistance heating, can save the energy by adopting the high-frequency power supply electromagnetic heating method, and can improve the environment.

Description

A kind of electromagnetic heating apparatus

Technical field

The utility model belongs to plastics and rubber equipment technical field, is specifically related to a kind of electromagnetic heating apparatus.

Background technology

Plastics are synthetic macromolecular compound { polymer (polymer) }, can be described as again macromolecule or giant molecule (macromolecules), also be plastics (plastics) or the resin (resin) that generally is commonly called as, can freely change the body pattern.Be the material that utilizes raw material monomer to be polymerized with synthetic or condensation reaction, formed by additives such as synthetic resin and filler, plasticizer, stabilizer, lubricant, colorants.

Extract the latex of the plants such as rubber tree, Russian dandelion, the material with elasticity, insulating properties, waterproof and air of making after the processing.Elastomeric macromolecular compound.Be divided into two kinds of natural rubber and synthetic rubber.Natural rubber is to be processed into extract colloid from the plants such as rubber tree, Russian dandelion after; Synthetic rubber is then got through polymerization reaction by various monomers.Rubber is widely used in industry or life each side.

Plastics, rubber processing industry are an industry of very popularizing, and especially plastic processing industry along with being widely used of plastic products, has become a kind of processing industry that must the old man can not leave.Need heat in plastics, rubber processing, existing mode of heating generally has two kinds:

The first scheme, it mainly comprises hopper, feed pipe, feeding spiro rod and resistance heater etc.Operation principle is: in the course of processing, raw material is added by hopper, and under the promotion of screw rod, raw material progressively travels forward, because there is resistive heater heats the feed pipe outside, so plastic powders progressively liquefies, to satisfy the requirement of plastic processing.

First scheme, it mainly comprises hopper, feed pipe, feeding spiro rod and high frequency heating coil etc.Hopper, feed pipe, feeding spiro rod are identical with the first, and only mode of heating is different, and the former is the resistance heating mode, and the latter is the Electromagnetic Heating mode.

These two kinds of mode of heatings respectively have advantage, but also deficiency are arranged respectively.The former has satisfied technological requirement preferably, but power consumption is too large, and makes the ambient temperature of working space be subject to larger impact.The latter has overcome the deficiency of the large and thermal pollution environment of the former energy consumption, but has also produced some problems.Mainly contain: 1. since coil on feed pipe, the axis of coil and the axis of plastic tube coincide.The magnetic line of force that coil produces has not only cut feed pipe, has also cut feeding spiro rod simultaneously.So in the heating feed pipe, also heat feeding spiro rod.Because the gap of feed pipe and feeding spiro rod very little (about general 0.14mm) is so it is stuck that the screw rod overheating deforming just might make it, and causes equipment breakdown.2. require the temperature of feed pipe different parts can be controlled on the technique, thus heat stepwise required, and this mode of heating is because coil is an integral body, so, implement comparatively difficulty.3. this whole processing mode that twines is not suitable for producing in enormous quantities.4. install, keep in repair all very inconveniently, and in case damage is scrapped with regard to integral body, cause larger loss.

The utility model content

In order to address the above problem, the purpose of this utility model is to provide a kind of electromagnetic heating apparatus, has advantage and the energy-conservation advantage with improving environment of high frequency electric source Electromagnetic Heating of the easy heat stepwise of resistance heating.

For achieving the above object, technical scheme that the utility model adopts is as follows:

A kind of electromagnetic heating apparatus is characterized in that this equipment comprises:

Hopper;

Feed pipe is arranged on the described hopper;

Screw rod is arranged on the center of described feed pipe;

Die head is arranged on the end of described feed pipe;

A plurality of semicircle asbestos housings are symmetricly set on respectively the vertically outer of described feed pipe and are arranged on described die head plane;

Magnetizing coil, winding is arranged in the described asbestos housing, and the axis of this magnetizing coil and the axis of described feed pipe are perpendicular.

The utility model is owing to having adopted Electromagnetic Heating, so still kept energy-conservation advantage.The utility model is because the flow direction of magnetic flux is perpendicular to the axis of feed pipe, under the shielding of feed pipe, there are not a large amount of magnetic lines of force directly to cut feeding spiro rod, so, only has the feed pipe heating, feeding spiro rod then can not generate heat in a large number, and this has also just prevented because the undue caused stuck phenomenon of thermal deformation.The utility model is owing to segmentation (be divided into four sections among the figure, will be determined on a case-by-case basis in the actual the use) mode of heating that has adopted as resistance heating, so can satisfy the requirement of segmentation control temperature on the technique.Simultaneously, because the effect that prevents thermal radiation has objectively been played in the existence of asbestos housing, thereby, saved energy, improved workman's operational environment.Owing to being designed to the one by one part of semicircle, being suitable for mass production.Easy for installation, easy to maintenance.Even if damage, also can not just all scrap quickly, therefore, saved maintenance cost.

Description of drawings

The picture that this description of drawings provides is used for auxiliary to further understanding of the present utility model, consists of the application's a part, does not consist of to improper restriction of the present utility model, in the accompanying drawings:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the sectional view of feed pipe, screw rod and asbestos housing in the utility model;

Fig. 3, Fig. 4 all are principle schematic of magnetizing coil and binding post in the asbestos housing in the utility model.

Fig. 5 be in the utility model die head and on the asbestos housing and the structural representation of magnetizing coil.

Embodiment

Describe the utility model in detail below in conjunction with accompanying drawing and specific implementation method, be used for explaining the utility model in schematic enforcement of the present utility model and explanation, but not as to restriction of the present utility model.

Embodiment 1:

As shown in the figure, the utility model discloses a kind of electromagnetic heating apparatus, it comprises hopper 1, be provided with feed pipe 2 on the hopper 1, the center of feed pipe 2 is screw rods 3, is provided with die head 7 at the end of feed pipe 2, is provided with semicircle asbestos housing 5 in feed pipe 2 external symmetrys, be wound with magnetizing coil 4 in asbestos housing 5, the axis of the axis of magnetizing coil 4 and feed pipe 2 is perpendicular; Be provided with the asbestos housing at die head, be provided with magnetizing coil at asbestos housing 5, the axis of described magnetizing coil is perpendicular to the die head plane.The utility model is symmetrically arranged with a plurality of semicircle asbestos housings 5 vertically outside described feed pipe 2.It is a side of die head or the both sides that lay respectively at the die head plane that the asbestos housing that arranges on the described die head and magnetizing coil are distributed in.Label 6 is the binding post on the magnetizing coil 4.

Operation principle of the present utility model is as follows: the utility model adopts 20-40KHz high frequency electric source Electromagnetic Heating mode.Specific practice is seen Fig. 1, Fig. 2, Fig. 3, Fig. 4.The basic principle of Fig. 3, Fig. 4 is identical, and just difference slightly on magnetic circuit is indicated among the distribution situation figure of the magnetic line of force, can use in different occasions.Fig. 4 uses when for example can heat in the plane.

The utility model is owing to having adopted Electromagnetic Heating, so still kept energy-conservation advantage; Because the flow direction of magnetic flux is perpendicular to the axis of feed pipe, under the shielding of feed pipe, does not have a large amount of magnetic lines of force directly to cut feeding spiro rod, so, only have the feed pipe heating, feeding spiro rod then can not generate heat in a large number, and this has also just prevented because the undue caused stuck phenomenon of thermal deformation; Owing to having adopted segmentation (be divided into four sections among the figure, will be determined on a case-by-case basis in the actual the use) mode of heating as resistance heating, so can satisfy the requirement of segmentation control temperature on the technique; Simultaneously, because the effect that prevents thermal radiation has objectively been played in the existence of asbestos housing, thereby, saved energy, improved workman's operational environment; Owing to being designed to the one by one part of semicircle, being suitable for mass production.Easy for installation, easy to maintenance.Even if damage, also can not just all scrap quickly, therefore, saved maintenance cost.The utility model not only can be used for plastics, rubber equipment, also can be used in the Electromagnetic Heating of the other fields such as metallurgy, mould.

The above technical scheme that the utility model embodiment is provided is described in detail, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on embodiment and range of application, in sum, this description should not be construed as restriction of the present utility model.

Claims (1)

1. electromagnetic heating apparatus is characterized in that this equipment comprises:

Hopper;

Feed pipe is arranged on the described hopper;

Screw rod is arranged on the center of described feed pipe;

Die head is arranged on the end of described feed pipe;

A plurality of semicircle asbestos housings are symmetricly set on respectively the vertically outer of described feed pipe and are arranged on described die head plane;

Magnetizing coil, winding is arranged in the described asbestos housing, and the axis of this magnetizing coil and the axis of described feed pipe are perpendicular.

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