Runner device for ultra-wide waterproof roll production line

Abstract

The utility model discloses a runner device for an ultra-wide waterproof roll production line, which is connected between two extruders and an extrusion die, the runner device comprises a distributor connected with a feed port of the extrusion die and two conveying runners respectively communicated with fluid of the distributor, and the two conveying runners are respectively communicated with one extruder. The two conveying runners are symmetrically arranged by taking the distributor as the center, each conveying runner comprises a screen exchanger, a metering pump, a first elbow, a static mixer and a second elbow which are communicated in sequence, the screen exchangers are arranged at extrusion ports of the corresponding extruders, and the second elbows are communicated with the distributor; the first elbow and the second elbow are bent to form an included angle larger than 90 degrees and smaller than 180 degrees. The extrusion yield and the product quality are improved, feeding needed by an ultra-wide production line can be met, material conveying is stable, and production of double-layer products can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of plastic product production equipment, and particularly to a flow channel device for an ultra-wide waterproof coiled material production line. Background Art

[0002] Currently, the ultra-wide extrusion die is fed by a single extruder. The feeding amount required by the ultra-wide extrusion die per unit time is relatively large, and an extruder with a relatively high output is needed for feeding. Otherwise, if the feeding amount does not meet the requirements, the width of the sheet extruded by the extrusion die will be insufficient or the thickness will be uneven, seriously affecting product quality and production efficiency. However, increasing the output of a single extruder will increase energy consumption and the output is unstable, which is not conducive to long-term production. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a flow channel device for an ultra-wide waterproof coiled material production line.

[0004] To achieve the above purpose, the present application adopts the following technical solution: A flow channel device for an ultra-wide waterproof coiled material production line, which is connected between two extruders and an extrusion die. The flow channel device includes a distributor connected to the feed port of the extrusion die and two conveying channels respectively in fluid communication with the distributor. The two conveying channels are respectively connected to one of the extruders, and the two conveying channels are symmetrically arranged centered on the distributor. Each of the conveying channels includes a screen changer, a metering pump, a first elbow, a static mixer, and a second elbow connected in sequence. The screen changer is arranged at the extrusion outlet of the corresponding extruder, and the second elbow is connected to the distributor; both the first elbow and the second elbow are bent at an angle greater than 90° and less than 180°.

[0005] In the above technical solution, further preferably, the distributor has an outlet communicating with the feed port of the extrusion die, a first inlet communicating with one of the conveying channels, and a second inlet communicating with the other conveying channel. The first inlet and the second inlet are symmetrically opened on the outer surface of the distributor.

[0006] In the above technical solution, further preferably, the interior of the distributor has a first channel connecting the outlet and the first inlet and a second channel connecting the outlet and the second inlet. The first channel and the second channel are symmetrically arranged on both sides of the outlet.

[0007] In the above technical solution, further preferably, the static mixer has a cylinder body extending in a straight line direction and several first mixing elements and several second mixing elements arranged in the cylinder body, and the several first mixing elements and the several second mixing elements are connected end to end and alternately distributed along the straight line direction.

[0008] In the above technical solution, further preferably, the several first mixing elements and the several second mixing elements are both helical fins twisted around an axis line, and the several first mixing elements and the several second mixing elements have opposite helix directions.

[0009] In the above technical solution, further preferably, the several first mixing elements and the several second mixing elements are coaxially connected.

[0010] The present application has the following beneficial effects compared with the prior art:

[0011] The present application is connected to two extruders through two conveying channels, improving the extrusion output, being able to meet the feeding required by an ultra-wide production line, and also being able to realize the production of double-layer products; the elbow is used to turn the conveying direction of the material, reducing the floor area of the production line; the metering pump is used to control the stable and continuous conveying of the material in the conveying channel, and the quality of the product is improved through the screen changer, static mixer and distributor. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of a flow channel device provided by an embodiment of the present application;

[0013] Figure 2 It is Figure 1 a schematic structural diagram of the screen changer in

[0014] Figure 3 It is Figure 1 a three-dimensional structural diagram of the static mixer (excluding the cylinder body) in

[0015] Figure 4 It is Figure 3 a schematic structural diagram of the static mixer in

[0016] Figure 5 It is Figure 1 a schematic structural diagram of the distributor in

[0017] Figure 6 It is a sectional view taken along the A-A line in Figure 5

[0018] ​Among them: 100, flow channel device; 1, distributor; 11, outlet; 12, first inlet; 13, second inlet; 14, first channel; 15, second channel; 2, screen changer; 21, shell; 22, filter; 23, cylinder; 3, metering pump; 4, first elbow; 5, static mixer; 51, first mixing element; 52, second mixing element; 6, second elbow. DETAILED DESCRIPTION

[0019] To describe the technical content, structural features, achieved purpose and effect of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0020] An embodiment of the present application provides a flow channel device for an ultra-wide waterproof membrane production line, which is connected between two extruders and an extrusion die, and is used to increase the output of the ultra-wide waterproof membrane production line per unit time, reduce energy consumption, and save production costs.

[0021] like Figure 1 As shown, the flow channel device 100 includes a distributor 1 connected to the feed port of the extrusion die and two conveying flow channels respectively connected to the fluid of the distributor 1, the two conveying flow channels are respectively connected to an extruder, and the two conveying flow channels are symmetrically arranged with the distributor 1 as the center, each conveying flow channel conveys the material output by the corresponding extruder to the distributor 1, and the distributor 1 merges the two streams and conveys them to the extrusion die. The two extruders produce materials at the same time, which can effectively increase the feed amount per unit time, meet the output required by the ultra-wide extrusion die per unit time, and reduce energy consumption; the two conveying flow channels of the flow channel device 100 can also realize the production of double-layer products.

[0022] Each conveying channel includes a screen changer 2, a metering pump 3, a first elbow 4, a static mixer 5 and a second elbow 6 which are connected in sequence. The screen changer 2 is arranged at the extrusion port of the corresponding extruder. The screen changer 2 is used to filter impurities and incompletely plasticized materials in the materials extruded by the extruder, so that the filtered clean materials enter the extrusion die from the conveying channel and are extruded, thereby improving the transparency and product quality of the extruded products.

[0023] like Figure 2As shown, the screen changer 2 of the embodiment of the present application includes a housing 21 connected to the metering pump 3, a filter 22 that can be drawn out of the housing 21, and a cylinder 23 that drives the filter 22 to move back and forth relative to the housing 21. A pressure detection device (not shown in the figure) is also installed on the screen changer 2. The pressure detection device is used to detect the pressure on both sides of the filter 22, so as to timely find out the filtering condition of the filter. If the filter is blocked, the pressure detection device controls the cylinder 23 to draw the filter 22 out of the housing 21, and then replaces the new filter 22 and inserts the filter 22 back into the housing 21. The filter of the screen changer 2 is replaceable to ensure the filtering effect of the screen changer.

[0024] like Figure 1 As shown, the metering pump 3 is used to control the flow rate of the material in the conveying channel, so that the conveying channel can stably and continuously convey the material from the extruder to the distributor 1. The first elbow 4 and the second elbow 6 are both used to deflect the conveying direction of the material in the conveying channel. The first elbow 4 is connected between the metering pump 3 and the static mixer 5, and the second elbow 6 is connected between the static mixer 5 and the distributor 1. The first elbow 4 makes the conveying channel have an angle α, and the second elbow 6 makes the conveying channel have an angle β, 90°<α<180°, 90°<β<180°. In the embodiment of the present application, the angle α and the angle β are equal, both of which are 135°. The first elbow 4 and the second elbow 6 allow the two extruders to be connected to the extrusion die symmetrically and parallel to each other. The extruders arranged in parallel to each other reduce the floor space of the production line, and the first elbow 4 and the second elbow 6 make the turning material flow conveying smooth, and there will be no accumulation of materials.

[0025] like Figure 1 , 3 As shown in Figures 4 and 5, the static mixer 5 has a barrel extending in a straight line direction and a plurality of first mixing elements 51 and a plurality of second mixing elements 52 arranged in the barrel, wherein the plurality of first mixing elements 51 and the plurality of second mixing elements 52 are connected end to end in a straight line direction and are alternately distributed. The first mixing element 51 and the second mixing element 52 are both spiral sheets twisted around an axis X1, the first mixing element 51 and the second mixing element 52 have opposite rotation directions, and the plurality of first mixing elements 51 and the plurality of second mixing elements 52 are coaxially connected. The mixing elements with opposite rotation directions in the static mixer 5 allow the passing material flow to be fully stirred and mixed, thereby eliminating the lines on the extruded product and further improving the quality of the product.

[0026] like Figure 1 , 5As shown in FIGS. 6, the dispenser 1 has an outlet 11 communicating with the feed port of the extrusion die, a first inlet 12 communicating with one of the conveying channels, and a second inlet 13 communicating with the other conveying channel. The first inlet 12 and the second inlet 13 are symmetrically arranged left and right on the outer surface of the dispenser. Inside the dispenser 1, there is a first channel 14 connecting the outlet 11 and the first inlet 12, and a second channel 15 connecting the outlet 11 and the second inlet 13. The first channel 14 and the second channel 15 are symmetrically arranged on the left and right sides of the outlet 11. When the flow channel device outputs a double-layer product for producing A / B sides, the dispenser 1 ensures clear stratification of the material flow and improves the quality of the double-layer product. When producing a single-layer product, the dispenser 1 balances the output material flow, avoids uneven thickness of the material flow, and improves the uniformity of the extruded product.

[0027] The foregoing shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and the description in the specification are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements. The scope of protection claimed by the present application is defined by the appended claims, the specification and their equivalents.

Claims

1. A flow channel device for an ultra-wide waterproofing coil production line, characterized in that: Connected between two extruders and an extrusion die, the flow channel device includes a distributor connected to the feed port of the extrusion die and two conveying flow channels respectively connected to the fluid of the distributor, the two conveying flow channels are respectively connected to one of the extruders, the two conveying flow channels are symmetrically arranged with the distributor as the center, each of the conveying flow channels includes a screen changer, a metering pump, a first elbow, a static mixer and a second elbow connected in sequence, the screen changer is arranged at the extrusion port of the corresponding extruder, and the second elbow is connected to the distributor; the first elbow and the second elbow are bent into an angle greater than 90° and less than 180°.

2. The flow channel device according to claim 1, characterized in that: The distributor has an outlet connected to the feed port of the extrusion die, a first inlet connected to one of the conveying channels and a second inlet connected to the other conveying channel. The first inlet and the second inlet are symmetrically arranged on the outer surface of the distributor.

3. The flow channel device according to claim 2, characterized in that: The distributor has a first channel communicating with the outlet and the first inlet and a second channel communicating with the outlet and the second inlet inside, and the first channel and the second channel are symmetrically arranged on both sides of the outlet.

4. The flow channel device according to claim 1, characterized in that: The static mixer comprises a barrel extending in a straight line direction and a plurality of first mixing elements and a plurality of second mixing elements arranged in the barrel, wherein the plurality of first mixing elements and the plurality of second mixing elements are connected end to end and alternately distributed in the straight line direction.

5. The flow channel device according to claim 4, characterized in that: The plurality of first mixing elements and the plurality of second mixing elements are all spiral sheets twisted spirally around an axial line, and the plurality of first mixing elements and the plurality of second mixing elements have opposite directions of rotation.

6. The flow channel device according to claim 5, characterized in that: The plurality of first mixing elements and the plurality of second mixing elements are coaxially connected.

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