CN-122008482-A - Melt-increasing mixing filter tip

Abstract

The invention relates to a melt-increasing mixing filter tip, which comprises a filter element, wherein a hollow flow passage is arranged at the axis, the tail end of the filter element is sealed, a flow dividing part, a mixing filtering part and a mounting part are sequentially arranged from the tail end to the front end of the filter element along the axial direction, the outer diameter of the mounting part and the outer diameter of the flow dividing part are the same as the inner diameter of a first material conveying passage, the outer diameter of the mixing filtering part is smaller than the inner diameter of the first material conveying passage, a first flow passage and a second flow passage which are sequentially alternate are arranged on the side wall of the mixing filtering part, a filtering hole is arranged on the second flow passage, the filtering hole is communicated with the hollow flow passage of the filter element, a plurality of flow guide grooves are arranged on the side wall of the flow dividing part, and each flow guide groove is communicated with the tail end of the first flow passage. The invention has three functions of melting increasing, mixing and filtering through the arrangement of the filter element, thereby ensuring the product quality.

Inventors

• XIAO JIAYUN
• XIAO RUI
• XIAO ZILI

Assignees

• 积康螺杆制造（上海）股份有限公司

Dates

Publication Date

20260512

Application Date

20260326

Claims (9)

1. 1. The utility model provides a melt-increasing mixing filter nozzle, it includes the flange joint body and installs the son nozzle at the flange joint body front end, the axle center department that flange joint body and son nozzle is equipped with first material conveying passageway and the second material conveying passageway that link up from front to back, its characterized in that, it includes the filter core that an axle center department was equipped with hollow runner to penetrate the nozzle, the tail end of filter core is sealed, the filter core is equipped with reposition of redundant personnel portion, mixing filter part and installation department in proper order along the axial from the tail end to the front end, wherein, the external diameter of installation department with reposition of redundant personnel portion is the same with the internal diameter of first material conveying passageway, the external diameter of mixing filter part is less than the internal diameter of first material conveying passageway, the lateral wall of mixing filter part is equipped with first runner and second runner in proper order, the second runner is equipped with the filtration pore, the filtration pore intercommunication the hollow runner of filter core, the lateral wall of reposition of redundant personnel portion is equipped with many guiding gutter, and every guiding gutter with the tail end intercommunication of first runner.
2. 2. The melt-and-knead filter nozzle according to claim 1, wherein a separation band is arranged between the first flow channel and the second flow channel, and the distance between the outer wall of the separation band and the inner wall of the first material conveying channel is 0.1-1 mm.
3. 3. The melt-kneading filter tip of claim 1, wherein 50 to 500 filter holes are provided in each of the second flow passages.
4. 4. The melt-kneading filter according to claim 1 or 3, wherein the filter hole has a pore diameter of 0.5 to 2mm.
5. 5. The melt-kneading filter according to claim 1, wherein the aspect ratio of the kneading filter portion is 3 to 5:1.
6. 6. The melt-kneading filter according to claim 1, wherein the depth of the first flow channel and the second flow channel is 2 to 5mm.
7. 7. The melt-kneading filter according to claim 1, wherein the number of the first flow channels and the second flow channels in the kneading filter section is 4 to 10.
8. 8. The melt-kneading filter according to claim 1, wherein the split portion has a tapered shape with a front thick portion and a rear thin portion.
9. 9. The melt-mixing filter of claim 1, wherein the front end of the hollow flow channel communicates with the second fluid channel.

Description

Melt-increasing mixing filter tip Technical Field The invention relates to the technical field of injection molding equipment, in particular to a melt-increasing mixing filter tip. Background In the injection molding field, in order to reduce the cost, the phenomenon of recycling materials is commonly used in the industry, namely, extruded waste materials are crushed for two or more times and then mixed with new materials, and the materials are subjected to re-melting extrusion. In the use process of the return materials, the defective products and the water gap are easy to have metal foreign matters entering the screw rod material pipe when being crushed, and even if a magnet device is added at the hopper, the fine metal foreign matters such as copper, stainless steel, aluminum and other alloy blades cannot be adsorbed, and the fine foreign matters can be directly wrapped in products through a nozzle of an injection molding machine and a runner of a mold, so that defects are generated in the final products. Secondly, the metal foreign matters with the diameter larger than that of the nozzle hole and the mold glue inlet are blocked in the channel, so that the production can be influenced only by one block in the channel, the nozzle or the mold disassembly maintenance treatment is required to be disassembled, serious trouble is caused to the production, and meanwhile, unnecessary economic loss is also caused. Thirdly, in the mixing process of the new material and the old material, the problems of uneven mixing and insufficient melting can occur, and the quality of the final product can be influenced. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide a melt-increasing mixing filter tip. In order to achieve the purpose of the application, the application provides the following technical scheme. In a first aspect, the application provides a melting-increasing mixing filter nozzle, the nozzle comprises a flange connector and a sub nozzle arranged at the front end of the flange connector, a first material conveying channel and a second material conveying channel which are communicated with each other in front-back are respectively arranged at the positions of the axes of the flange connector and the sub nozzle, the nozzle comprises a filter element with a hollow flow channel arranged at the position of the axis, the tail end of the filter element is closed, the filter element is sequentially provided with a diversion part, a mixing filter part and a mounting part from the tail end to the front end along the axial direction, wherein the outer diameter of the mounting part and the outer diameter of the diversion part are the same as the inner diameter of the first material conveying channel, the outer diameter of the mixing filter part is smaller than the inner diameter of the first material conveying channel, the side wall of the mixing filter part is provided with a first flow channel and a second flow channel which are sequentially and alternately arranged, the second flow channel is provided with a filter hole, the filter hole is communicated with the hollow flow channel of the filter element, the side wall of the diversion part is provided with a plurality of diversion grooves, and each diversion groove is communicated with the tail end of the first flow channel. The material enters the first flow channel from the diversion trench, continuously crosses over the first flow channel to enter the second flow channel in the forward flowing process of the first flow channel, flows into the hollow flow channel of the filter element in the second flow channel through the filtering hole, and finally flows into the second material conveying channel to be extruded. In the process, the materials are thinned and compacted while being split in the process of crossing the first flow channel and entering the second flow channel, so that the effect of melting is achieved, and the large-particle materials are melted more thoroughly again. Simultaneously, when the material passes through the filter holes, the filter holes can filter impurities, and simultaneously, when the material passes through the filter holes and is converged and cross-fused in the hollow flow passage, the material is more uniformly mixed, and the mixing effect is achieved. Therefore, the application has three functions of melting increasing, mixing and filtering through the arrangement of the filter element, thereby ensuring the product quality. The outer diameters of the installation part and the diversion part are the same as the inner diameter of the first material conveying channel, namely, a gap of 1-5 mu m is reserved between the installation part and the diversion part, the gap can ensure that the filter element can move in the first material conveying channel, and materials cannot leak out of the gap. In an implementation manner of the first aspect, a separation belt is arranged between the first flow ch