Air exhausting device of plastic extruder
A plastic extruder and exhaust device technology, applied in the field of extruder parts, can solve problems affecting product quality, air pollution, acne surface, etc., and achieve broad application prospects, excellent comprehensive performance, and improved purification Effect
Inactive Publication Date: 2016-08-24
SUZHOU HAOSHUN PLASTIC RUBBER CO LTD
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Problems solved by technology
[0002] During the extrusion molding process, the plastics (granules or powders) used often entrain air, adsorbed moisture, residual monomers, low-boiling plasticizers, and oligomers that can volatilize at molding temperatures. Can not be ruled out, it will affect the quality of the product
In addition to the decline in the physical and mechanical properties, chemical properties and electrical properties of the product, defects such as voids, air bubbles, blemishes and dark surfaces will also appear on the surface or inside of the product, seriously affecting the appearance and performance of the product
The existing exhaust device has the following disadvantages: 1. The overflow of the exhaust port is serious; 2. The airtightness of the exhaust device is poor; 3. The exhausted gas is directly discharged, polluting the air
Method used
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[0013] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0014] see figure 1 and figure 2 , the embodiment of the present invention includes:
[0015] An exhaust device for a plastic extruder, comprising: a barrel 1, an extrusion screw 10, a porous disc 2, an exhaust pipe 3, a screw part 4, a gas absorber 5 and a vacuum device 6.
[0016] The porous disk 2 is embedded and fixed in the barrel 1 in cross-section, and the porous disk 2 is composed of a central circular hole 21, a plurality of strip-shaped holes 22 and a fixed ring 23, wherein the size of the central circular hole is related to the extrusion The output screw 10 is matched and connected with the extrusion screw 1 through a sliding bearin...
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The invention discloses an air exhausting device of a plastic extruder. The air exhausting device comprises an extrusion screw rod, a machine barrel, a porous disc, an air exhausting pipe, a helical component, a gas absorber and a vacuum pumping device. The porous disc is fixed in the machine barrel in an embedded mode and arranged on the extrusion screw rod in a sleeving mode through a sliding bearing. The air exhausting pipe is inserted and fixed in the wall face of the top of the machine barrel where the porous disc is located. The air exhausting pipe is sequentially provided with the helical component, the gas absorber and an air pump in the flowing direction of gas. A filter net is installed between the top end of the helical component and the air exhausting pipe. A discharge outlet is installed between the bottom end of the helical component and the air exhausting pipe. According to the air exhausting device, the structure is simple, design is reasonable, the overflow problem of the air exhausting device is effectively avoided due to the porous disc, the purification degree of the exhausted gas is improved due to the design of the helical component and the gas absorber, pollution caused by exhausted gas to environment is effectively reduced, the overall performance is excellent, and the application prospect is wide.
Description
technical field [0001] The invention relates to the field of extruder components, in particular to an exhaust device for a plastic extruder. Background technique [0002] During the extrusion molding process, the plastics (granules or powders) used often entrain air, adsorbed moisture, residual monomers, low-boiling plasticizers, and oligomers that can volatilize at molding temperatures. If it cannot be ruled out, it will affect the quality of the product. In addition to the decline in the physical and mechanical properties, chemical properties and electrical properties of the product, defects such as voids, bubbles, blemishes, and dark surfaces may appear on the surface or inside of the product, which seriously affect the appearance and performance of the product. The existing exhaust device has the following disadvantages: 1. The overflow of the exhaust port is serious; 2. The airtightness of the exhaust device is poor; 3. The discharged gas is directly discharged to poll...
Claims
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Login to View More IPC IPC(8): B29C47/76B29C48/76
CPCB29C48/767B29C48/763
Inventor 邹晓明
Owner SUZHOU HAOSHUN PLASTIC RUBBER CO LTD