Heating jacket
A technology of heating jacket and electric heating wire, applied in the direction of heating element material, etc., can solve the problems of large waste, time-consuming and labor-intensive, etc., and achieve the effect of cost saving and convenient maintenance
Inactive Publication Date: 2019-07-16
宋玉
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Problems solved by technology
[0002] Existing extruder heating uses heating elements such as resistance wires to be wound circularly along the outside of the extrusion chamber. The defect of this method is that when a certain section of heating wire is damaged, the entire heating wire needs to be replaced, which is not only time-consuming and laborious, but also extremely wasteful. Big
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[0009] The present invention will be specifically described below in conjunction with the accompanying drawings. As shown in the figure, the present invention includes electric heating wires 3 arranged outside the extrusion chamber, and the electric heating wires 3 are U-shaped and arranged in sequence along the axial direction of the extrusion chamber; The heating wire 3 is arranged in the protective cover 2, and the outer side of the protective cover 2 is an insulating layer 1; the end of the protective cover is embedded in the notch 7 on the flange, and the conductor 8 is arranged in the notch 7, and the The conductor 8 is electrically connected to the electric heating wire 3; the other end of the electric heating wire is connected through a conductor interval; there is a gap between the electric heating wire 3 and the heating jacket 2 to ensure easy replacement. The protective cover is made of heat-resistant insulating material.
[0010] Because the present invention adopt...
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The invention discloses a heating jacket. The heating jacket comprises electric heating wires arranged on the outer side of an extrusion cavity, and the electric heating wires are sequentially arranged in the axial direction of the extrusion cavity in a U-shaped mode; the electric heating wires are arranged in protective jackets, and a heat preservation layer is arranged on the outer side of eachprotective jacket; the ends of the protective jackets are embedded into grooves of a flange, and conductors are arranged in the grooves and electrically connected with the electric heating wires; theother ends of the electric heating wires are connected at intervals through the conductors; a gap is formed between each electric heating wire and the heating jacket; and the protective jackets are made of a heat-resistant insulation material. The heating jacket has the advantages that the single electric heating wires are adopted, one end of each electric heating wire is connected through the corresponding conductor in the flange, the other ends of the electric heating wires are connected through the conductors, the electric heating wires are arranged in the protective jackets, therefore, when one electric heating wire is failed, the electric heating wire can be directly extracted out, maintenance is very convenient, the whole heating wires do not need to be replaced, and the cost is reduced.
Description
technical field [0001] The invention relates to the field of plastic machinery, in particular to a heating device for an extruder. Background technique [0002] Existing extruder heating uses heating elements such as resistance wires to be wound circularly along the outside of the extrusion chamber. The defect of this method is that when a certain section of heating wire is damaged, the entire heating wire needs to be replaced, which is not only time-consuming and laborious, but also extremely wasteful. big. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a heating device that is convenient for maintenance, and the specific technical solutions are as follows: [0004] A heating jacket, comprising electric heating wires arranged outside the extrusion chamber, the electric heating wires are arranged in a U shape along the axial direction of the extrusion chamber; the electric heat...
Claims
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Login to View More IPC IPC(8): B29C48/80H05B3/10
CPCH05B3/10B29C48/832
Inventor 宋玉
Owner 宋玉