Foaming agent injection device in pearl wool production

Abstract

The utility model discloses a foaming agent injection device in pearl wool production, which belongs to the technical field of pearl wool production, and comprises a raw material box, the outer surface of the raw material box is fixedly connected with an outer sleeve box, the lower end of the raw material box is communicated with an injection mechanism, and an inner cavity of the raw material box is provided with an anti-cooling solidification mechanism; the motor drives the driving gear to rotate, when the driving gear rotates, the driven gear and the rotating pipe which are in meshed connection with the driving gear are driven to rotate under cooperation of the rotating connector, and when the rotating pipe rotates, the stirring pipe and the scraping strip are driven to rotate to fully stir and mix a foaming agent solution and a diluting solution or other chemical substances in the raw material box. The foaming agent solution is ensured to be uniformly mixed, the local concentration is prevented from being too high or too low, and meanwhile residues attached to the box wall can be removed through the scraping strips.

Description

Technical Field

[0001] The utility model relates to the technical field of pearl cotton production, and more specifically to a foaming agent injection device in pearl cotton production. Background Art

[0002] In the production process of pearl cotton (EPE), the foaming agent injection device plays a key role. It is responsible for accurately and evenly adding the foaming agent to the molten polyethylene resin to form the unique porous structure of the pearl cotton material.

[0003] The most commonly used foaming agent in the existing pearl cotton production is butane, because it can be dissolved in the polyethylene melt at high temperature, and evaporate quickly when cooled to form bubbles, giving the material light weight and good cushioning properties. High-pressure metering pumps are often used to ensure accurate metering and injection of the foaming agent. The foaming agent is injected into a specific area of ​​the extruder, usually when the material has been fully melted and is at a suitable temperature.

[0004] In the actual use of the prior art, since the foaming agent usually needs to be diluted with water or mixed with other chemical substances according to its type and instructions for use, the foaming agent solution is prone to local concentration being too high or too low during mixing, affecting the foaming effect. Therefore, a foaming agent injection device for pearl cotton production is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the utility model provides a foaming agent injection device in the production of pearl cotton, which drives a driving gear to rotate through a motor. When the driving gear rotates, it drives the driven gear meshing with it and the rotating tube to rotate in cooperation with a rotating joint. When the rotating tube rotates, it drives the stirring tube and the scraping bar to rotate to fully stir and mix the foaming agent solution and the diluted solution or other chemical substances in the raw material box, ensuring that the foaming agent solution is evenly mixed and avoiding excessively high or low local concentrations. At the same time, the scraping bar can remove residues attached to the box wall.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A foaming agent injection device in pearl cotton production comprises a raw material box, the outer surface of the raw material box is fixedly connected to an outer box, the lower end of the raw material box is connected to an injection mechanism, and the inner cavity of the raw material box is provided with an anti-cooling and solidification mechanism; the injection mechanism comprises a discharge pipe connected to the lower end of the raw material box, the lower end of the discharge pipe is connected to a high-pressure metering pump, and the lower end of the high-pressure metering pump is connected to an extrusion injection pipe; the anti-cooling and solidification mechanism comprises a rotating tube rotatably connected to the inner cavity of the raw material box, the outer surface of the rotating tube is connected to a stirring tube, one end of the stirring tube is fixedly connected to a scraping bar, the upper end of the rotating tube is connected to a rotating joint, one end of the rotating joint is connected to a circulation pump, the inner cavity of the outer box is provided with an electric heating tube, the outer surface of the upper end of the rotating tube is fixedly connected to a driven gear, and the outer surface of the driven gear is meshingly connected to a driving gear.

[0010] Furthermore, the lower surface of the outer box is fixedly connected with support legs, and the upper surface of the raw material box is connected with a feed pipe.

[0011] Furthermore, a mounting frame is fixedly connected to the upper surface of the outer casing, and the mounting frame is fixedly connected to the high-pressure metering pump.

[0012] Furthermore, the upper surface of the outer casing is connected to a water inlet pipe, and the lower surface of the outer casing is connected to a drain pipe, and valves are provided in the inner cavities of the water inlet pipe and the drain pipe.

[0013] Furthermore, the circulation pump is connected to the outer casing via a connecting pipe, a cavity is provided inside the scraping bar, and the cavity is connected to the stirring pipe.

[0014] Furthermore, a motor is fixedly connected to the upper surface of the raw material box via a bracket, and an output shaft end of the motor is fixedly connected to a driving gear.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) In this scheme, a motor drives a driving gear to rotate. When the driving gear rotates, it drives the driven gear and the rotating tube meshing with it to rotate in cooperation with the rotating joint. When the rotating tube rotates, it drives the stirring tube and the scraper bar to rotate to fully stir and mix the foaming agent solution and the dilution solution or other chemical substances in the raw material box, ensuring that the foaming agent solution is mixed evenly and avoiding excessively high or low local concentrations. At the same time, the scraper bar can remove the residues attached to the box wall.

[0018] (2) This solution heats the water in the outer box through an electric heating tube and transfers the heat to the inside of the raw material box, accurately heating the foaming agent solution near the outer wall and bottom of the raw material box, where the temperature is easily reduced. Once the solution solidifies and lumps, it will fall to the bottom of the raw material box. At this time, the heat dissipated by the hot water in the outer box can help the lumps to dissolve quickly. The hot water can be circulated to the inside of the rotating tube, stirring tube and scraping bar through a circulating pump. The rotating tube, stirring tube and scraping bar will evenly transfer the heat of the hot water to the inside of the foaming agent solution when they rotate, ensuring that the foaming agent solution in the raw material box can be heated evenly and preventing the foaming agent solution from solidifying due to low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model from a side view;

[0021] Figure 3 This is a half-section schematic diagram of the internal structure of the utility model;

[0022] Figure 4 It is a side section schematic diagram of the internal structure of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Raw material box; 101. Outer box; 102. Support legs; 2. Injection mechanism; 201. Feed pipe; 202. Discharge pipe; 203. High-pressure metering pump; 204. Injection pipe; 205. Mounting frame; 3. Anti-cooling and solidification mechanism; 301. Water inlet pipe; 302. Drain pipe; 303. Rotating pipe; 304. Stirring pipe; 305. Scraping bar; 306. Rotating joint; 307. Circulation pump; 308. Connecting pipe; 309. Electric heating pipe; 310. Driven gear; 311. Motor; 312. Driving gear. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example 1

[0029] Reference Figure 1-3 , which is the first embodiment of the utility model, and provides a foaming agent injection device in the production of pearl cotton, including a raw material box 1, an outer box 101 is fixedly connected to the outer surface of the raw material box 1, and the lower end of the raw material box 1 is connected to an injection mechanism 2, including a discharge pipe 202 connected to the lower end of the raw material box 1, and the lower end of the discharge pipe 202 is connected to a high-pressure metering pump 203, and the lower end of the high-pressure metering pump 203 is connected to an extrusion injection pipe 204;

[0030] Specifically, the lower surface of the outer box 101 is fixedly connected with the support legs 102, the upper surface of the raw material box 1 is connected with the feed pipe 201, the upper surface of the outer box 101 is fixedly connected with the mounting frame 205, and the mounting frame 205 is fixedly connected with the high-pressure metering pump 203;

[0031] Furthermore, the raw material box 1 stores the foaming agent raw materials to be injected, such as anti-shrinkage agent, butane, etc., the support legs 102 support the entire device to ensure that the equipment stands firmly, the high-pressure metering pump 203 accurately controls the injection of the foaming dosage with high pressure, the extrusion tube 204 injects the foaming agent into the polymer melt through this pipeline, and the mounting frame 205 fixes the high-pressure metering pump 203.

[0032] Example 2

[0033] Reference Figure 1-4, which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. The inner cavity of the raw material box 1 is provided with an anti-cooling and solidification mechanism 3, including a rotating tube 303 rotatably connected to the inner cavity of the raw material box 1, the outer surface of the rotating tube 303 is connected with a stirring tube 304, one end of the stirring tube 304 is fixedly connected with a scraping strip 305, the upper end of the rotating tube 303 is connected with a rotating joint 306, one end of the rotating joint 306 is connected with a circulating pump 307, the inner cavity of the outer box 101 is provided with an electric heating tube 309, the outer surface of the upper end of the rotating tube 303 is fixedly connected with a driven gear 310, and the outer surface of the driven gear 310 is meshed with a driving gear 312;

[0034] Specifically, the upper surface of the outer box 101 is connected with a water inlet pipe 301, and the lower surface of the outer box 101 is connected with a drain pipe 302. The inner cavities of the water inlet pipe 301 and the drain pipe 302 are both provided with valves. The circulation pump 307 is connected to the outer box 101 through a connecting pipe 308. A cavity is provided inside the scraping bar 305, and the cavity is connected to the stirring pipe 304. The upper surface of the raw material box 1 is fixedly connected with a motor 311 through a bracket, and the output shaft end of the motor 311 is fixedly connected to the driving gear 312.

[0035] Further, the starting motor 311 drives the driving gear 312 to rotate. When the driving gear 312 rotates, it drives the driven gear 310 and the rotating tube 303 meshed with it to rotate under the cooperation of the rotating joint 306. The driven gear 310 and the driving gear 311 are transmission components for driving stirring. The motor 312 provides power. When the rotating tube 303 rotates, it drives the stirring tube 304 and the scraper bar 305 to rotate to fully stir and mix the foaming agent solution and the diluted solution or other chemical substances in the raw material box 1 to ensure that the foaming agent solution is evenly mixed. The rotating joint 306 allows the pipeline to rotate flexibly and can ensure To ensure the tightness, the rotation of the scraper bar 305 can remove the residues attached to the box wall, the electric heating tube 309 can heat the water in the outer box 101, and the hot water can accurately heat the foaming agent solution near the outer wall and bottom of the raw material box 1, where the temperature is easily reduced, and quickly dissolve the solidified and falling lumps. The hot water can be circulated to the rotating tube 303, the stirring tube 304 and the scraper bar 305 through the circulation pump 307. The rotating tube 303, the stirring tube 304 and the scraper bar 305 will evenly transfer the heat of the hot water to the foaming agent solution during rotation, ensuring that the foaming agent solution in the raw material box 1 can be heated evenly.

[0036] Working principle: During the use of the device, the operator feeds the foaming agent solution and the diluted solution or other chemical substances into the raw material box 1 through the feed pipe 201, and then starts the motor 311 to drive the driving gear 312 to rotate. When the driving gear 312 rotates, it drives the driven gear 310 and the rotating tube 303 meshing with it to rotate under the cooperation of the rotating joint 306. When the rotating tube 303 rotates, it drives the stirring tube 304 and the scraping bar 305 to rotate to fully stir and mix the foaming agent solution and the diluted solution or other chemical substances in the raw material box 1 to ensure that the foaming agent solution is evenly mixed to avoid excessively high or low local concentrations. At the same time, the scraping bar 305 can remove the residues attached to the box wall. Then, the water in the outer box 101 is heated by the electric heating tube 309 to make it hot water, and the heat is transferred to the inside of the raw material box 1 to heat the water near the raw material box 1. The foaming agent solution whose temperature is easily reduced at the outer wall and bottom of the material box 1 is precisely heated, and once the solution solidifies and lumps, it will fall to the bottom of the raw material box 1. At this time, the heat emitted by the hot water in the outer box 101 can help the lumps to dissolve quickly. At the same time, the hot water can be circulated to the rotating tube 303, the stirring tube 304 and the scraping bar 305 through the circulation pump 307. The rotating tube 303, the stirring tube 304 and the scraping bar 305 will evenly transfer the heat of the hot water to the foaming agent solution during rotation, ensuring that the foaming agent solution in the raw material box 1 can be heated evenly and preventing the foaming agent solution from solidifying due to low temperature. When the foaming agent needs to be injected into the pearl cotton production process, the high-pressure metering pump 203 is started at this time to inject the foaming agent with suitable temperature in the raw material box 1 into the polymer melt through the injection pipe 204 at a uniform speed and accurately to ensure the foaming effect.

[0037] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A foaming agent injection device for pearl cotton production, comprising a raw material box (1), characterized in that: The outer surface of the raw material box (1) is fixedly connected to an outer box (101), the lower end of the raw material box (1) is connected to an injection mechanism (2), and the inner cavity of the raw material box (1) is provided with an anti-cooling and solidification mechanism (3); The injection mechanism (2) comprises a discharge pipe (202) connected to the lower end of the raw material box (1), the lower end of the discharge pipe (202) is connected to a high-pressure metering pump (203), and the lower end of the high-pressure metering pump (203) is connected to an extrusion injection pipe (204); The anti-cooling and solidification mechanism (3) comprises a rotating tube (303) rotatably connected to the inner cavity of the raw material box (1); the outer surface of the rotating tube (303) is connected to a stirring tube (304); one end of the stirring tube (304) is fixedly connected to a scraper bar (305); the upper end of the rotating tube (303) is connected to a rotating joint (306); one end of the rotating joint (306) is connected to a circulating pump (307); the inner cavity of the outer box (101) is provided with an electric heating tube (309); the outer surface of the upper end of the rotating tube (303) is fixedly connected to a driven gear (310); the outer surface of the driven gear (310) is meshingly connected to a driving gear (312).

2. A foaming agent injection device in pearl cotton production according to claim 1, characterized in that: The lower surface of the outer box (101) is fixedly connected to support legs (102), and the upper surface of the raw material box (1) is connected to a feed pipe (201).

3. The foaming agent injection device in the production of pearl cotton according to claim 1, characterized in that: A mounting frame (205) is fixedly connected to the upper surface of the outer casing (101), and the mounting frame (205) is fixedly connected to the high-pressure metering pump (203).

4. The foaming agent injection device in the production of pearl cotton according to claim 1, characterized in that: The upper surface of the outer casing (101) is connected to a water inlet pipe (301), and the lower surface of the outer casing (101) is connected to a drain pipe (302). Valves are provided in the inner cavities of the water inlet pipe (301) and the drain pipe (302).

5. The foaming agent injection device in the production of pearl cotton according to claim 1, characterized in that: The circulation pump (307) is connected to the outer casing (101) via a connecting pipe (308); a cavity is provided inside the scraping strip (305); and the cavity is connected to the stirring pipe (304).

6. The foaming agent injection device in the production of pearl cotton according to claim 1, characterized in that: A motor (311) is fixedly connected to the upper surface of the raw material box (1) via a bracket, and an output shaft end of the motor (311) is fixedly connected to a driving gear (312).

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