A two-component liquid material feeder

Abstract

The present invention provides a two-component liquid material feeder, belonging to the field of extruders, including a feeder body, the feeder body including an inner feeding tube and an outer feeding tube, the inner feeding tube is arranged in the outer feeding tube, and a first feeding channel is arranged between the inner feeding tube and the outer feeding tube, a first feeding port communicating with the first feeding channel is arranged on the upper side of the outer wall of the outer feeding tube, a first discharge port communicating with the first feeding channel is arranged between the lower end of the outer feeding tube and the inner feeding tube, a second feeding channel is arranged in the inner feeding tube, a second feeding port communicating with the second feeding channel is arranged on the top of the feeder body, and an atomizing nozzle is arranged at the lower end of the inner feeding tube. The present invention has a simple structure, can allow two materials to enter the extruder at the same time, but not be mixed in advance to avoid mutual reaction, and can be mixed evenly when the two materials are about to enter the extruder.

Description

Technical Field

[0001] The invention belongs to the technical field of extruders, and in particular relates to a two-component liquid material feeder. Background Art

[0002] At present, there are basically two ways to add different liquids to the extruder: one is to pre-mix the liquid materials to be added, and then use a metering pump to pump them into the extruder; the other is to use metering pumps to pump different materials into the extruder separately. However, for some special materials, two materials need to enter the extruder at the same time, but they cannot be mixed in advance to avoid mutual reaction. Therefore, there is an urgent need for a two-component liquid material feeder that can solve the existing problems. Summary of the invention

[0003] The purpose of the present invention is to provide a two-component liquid material feeder in view of the deficiencies in the prior art. The feeder has a simple structure and can feed two materials simultaneously when entering an extruder, but cannot be mixed in advance to avoid mutual reaction, and can mix the two materials evenly when they are about to enter the extruder.

[0004] The present invention provides the following technical solutions:

[0005] A two-component liquid material feeder comprises a feeder body, wherein the feeder body comprises an inner feeding tube and an outer feeding tube, wherein the inner feeding tube is arranged inside the outer feeding tube, and a first feeding channel is arranged between the inner feeding tube and the outer feeding tube, a first feeding port communicating with the first feeding channel is arranged on the upper side of the outer wall of the outer feeding tube, a first discharge port communicating with the first feeding channel is arranged between the lower end of the outer feeding tube and the inner feeding tube, a second feeding channel is arranged inside the inner feeding tube, a second feeding port communicating with the second feeding channel is arranged on the top of the feeder body, and an atomizing nozzle is arranged at the lower end of the inner feeding tube to ensure the mixing effect of the materials.

[0006] Preferably, a first flange is provided at the upper end of the external feeding pipe, and a second flange is provided at the lower end of the external feeding pipe.

[0007] Preferably, an end cover is fixedly connected to the top of the inner feeding tube, the lower end of the end cover is inserted into the outer feeding tube, and the second feed port is arranged in the end cover, a third flange is provided on the end cover, and the third flange is connected to the first flange by bolts.

[0008] Preferably, a heat-insulating wall is fixed circumferentially to the outer wall of the inner feeding pipe, and the provision of the heat-insulating wall can reduce the heat transfer between the inner and outer feeds.

[0009] Preferably, the thermal insulation wall includes an upper thermal insulation wall and a lower thermal insulation wall, the upper thermal insulation wall and the lower thermal insulation wall are cylindrical structures, and the inner diameter of the upper thermal insulation wall is consistent with the inner diameter of the lower thermal insulation wall, the outer diameter of the upper thermal insulation wall is smaller than the outer diameter of the lower thermal insulation wall, a first inclined surface is connected between the upper thermal insulation wall and the lower thermal insulation wall, and a second inclined surface is connected between the lower thermal insulation wall and the atomizing nozzle.

[0010] Preferably, the material used for the heat insulation wall is polytetrafluoroethylene.

[0011] Preferably, the ratio of the flow rate in the inner feeding pipe to the flow rate in the outer feeding pipe is 20:1-1:20.

[0012] The beneficial effects of the present invention are:

[0013] The feeder of the present invention has a simple structure, and comprises an inner feeding tube and an outer feeding tube. The first feeding channel between the inner feeding tube and the outer feeding tube can make one material form a thin ring-shaped uniform distribution. The second feeding channel in the inner feeding tube is used for feeding another material, which flows out from the atomizing nozzle at the bottom, so that the two materials enter the extruder after fully contacting at the bottom of the feeder body. If there is a temperature difference between the two liquid materials, the first feeding channel and the second feeding channel can be isolated by an insulating wall to reduce the heat transfer between the two liquid materials. The maximum temperature difference between the inner and outer feeds can reach 80°C. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Markings in the figure are: 1. inner feeding pipe; 2. outer feeding pipe; 3. first feeding channel; 4. first feeding port; 5. first discharging port; 6. second feeding channel; 7. second feeding port; 8. atomizing nozzle; 9. first flange; 10. second flange; 11. end cover; 12. third flange; 13. upper insulation wall; 14. lower insulation wall; 15. first slope; 16. second slope. DETAILED DESCRIPTION

[0017] like Figure 1As shown, a two-component liquid material feeder includes a feeder body, the feeder body includes an inner feeding tube 1 and an outer feeding tube 2, the inner feeding tube 1 is arranged in the outer feeding tube 2, and a first feeding channel 3 is arranged between the inner feeding tube 1 and the outer feeding tube 2, a first feeding port 4 communicating with the first feeding channel 3 is arranged on the upper side of the outer wall of the outer feeding tube 2, a first discharge port 5 communicating with the first feeding channel 3 is arranged between the lower end of the outer feeding tube 2 and the inner feeding tube 1, a second feeding channel 6 is arranged in the inner feeding tube 1, a second feeding port 7 communicating with the second feeding channel 6 is arranged on the top of the feeder body, and an atomizing nozzle 8 is arranged at the lower end of the inner feeding tube 1.

[0018] Specifically, a first flange 9 is provided at the upper end of the external feeding pipe 2, and a second flange 10 is provided at the lower end of the external feeding pipe 2. The second flange 10 is connected to the extruder by bolts.

[0019] Specifically, an end cover 11 is fixedly connected to the top of the inner feeding tube 1, the lower end of the end cover 11 is inserted into the outer feeding tube 2, and the second feed port 7 is arranged in the end cover 11. A third flange 12 is provided on the end cover 11, and the third flange 12 is connected to the first flange 9 by bolts.

[0020] Specifically, a heat insulating wall is fixed around the outer wall of the inner feeding pipe 1 , and the provision of the heat insulating wall can reduce the heat transfer between the inner and outer feeding materials.

[0021] Specifically, the insulation wall includes an upper insulation wall 13 and a lower insulation wall 14. The upper insulation wall 13 and the lower insulation wall 14 are cylindrical structures, and the inner diameter of the upper insulation wall 13 is consistent with the inner diameter of the lower insulation wall 14. The outer diameter of the upper insulation wall 13 is smaller than the outer diameter of the lower insulation wall 14, so that the cross-sectional area of ​​the first feed channel 3 between the upper insulation wall 13 and the external feeding pipe 2 is larger than the cross-sectional area of ​​the first feed channel 3 between the lower insulation wall 14 and the external feeding pipe 2. A first inclined surface 15 is connected between the upper insulation wall 13 and the lower insulation wall 14, and a second inclined surface 16 is connected between the lower insulation wall 14 and the atomizing nozzle 8.

[0022] Specifically, the material used for the heat insulation wall is polytetrafluoroethylene, which has good heat insulation effect.

[0023] Specifically, the ratio of the flow rate in the inner feeding pipe 1 to the flow rate in the outer feeding pipe 2 is 20:1-1:20.

[0024] The present invention can be used for extruder feeding, including but not limited to aramid polymerization, silicone polymerization, polyurethane polymerization, polyoxymethylene polymerization, two-component adhesive polymerization, and polymerization reaction feeding in which two liquids are added separately, and has a wide range of uses. The feeder of the present invention has a simple structure, including an inner feeding tube 1 and an outer feeding tube 2. The first feeding channel 3 between the inner feeding tube 1 and the outer feeding tube 2 can make a material form a thin ring-shaped uniform distribution. The second feeding channel 6 in the inner feeding tube 1 is used for feeding another material, which flows out from the atomizing nozzle 8 at the bottom, so that the two materials enter the extruder after fully contacting at the bottom of the feeder body; if there is a temperature difference between the two liquid materials, the first feeding channel 3 and the second feeding channel 6 can be isolated by an insulating wall to reduce the heat transfer between the two liquid materials. The maximum temperature difference between the internal and external feeds can reach 80°C.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A two-component liquid material feeder, characterized in that: The invention comprises a feeder body, wherein the feeder body comprises an inner feeding pipe and an outer feeding pipe, wherein the inner feeding pipe is arranged inside the outer feeding pipe, and a first feeding channel is arranged between the inner feeding pipe and the outer feeding pipe, a first feeding port communicating with the first feeding channel is arranged on the upper side of the outer wall of the outer feeding pipe, a first discharge port communicating with the first feeding channel is arranged between the lower end of the outer feeding pipe and the inner feeding pipe, a second feeding channel is arranged inside the inner feeding pipe, a second feeding port communicating with the second feeding channel is arranged on the top of the feeder body, and an atomizing nozzle is arranged at the lower end of the inner feeding pipe; An insulation wall is fixed circumferentially to the outer wall of the inner feeding tube, and the insulation wall includes an upper insulation wall and a lower insulation wall. The upper insulation wall and the lower insulation wall are cylindrical structures, and the inner diameter of the upper insulation wall is consistent with the inner diameter of the lower insulation wall, and the outer diameter of the upper insulation wall is smaller than the outer diameter of the lower insulation wall. A first inclined surface is connected between the upper insulation wall and the lower insulation wall, and a second inclined surface is connected between the lower insulation wall and the atomizing nozzle.

2. A two-component liquid material feeder according to claim 1, characterized in that: The upper end of the external feeding pipe is provided with a first flange, and the lower end of the external feeding pipe is provided with a second flange.

3. A two-component liquid material feeder according to claim 2, characterized in that: An end cover is fixedly connected to the top of the inner feeding pipe, the lower end of the end cover is inserted into the outer feeding pipe, and the second feed port is arranged in the end cover. A third flange is arranged on the end cover, and the third flange is connected to the first flange by bolts.

4. A two-component liquid material feeder according to claim 1, characterized in that: The material used for the heat insulation wall is polytetrafluoroethylene.

5. A two-component liquid material feeder according to any one of claims 1 to 4, characterized in that: The ratio of the flow rate in the inner feeding pipe to the flow rate in the outer feeding pipe is 20:1-1:20.

Images