Impurity cleaning device for foam pre-expander

Abstract

The utility model relates to the field of foam pre-expanders, and discloses an impurity cleaning device for a foam pre-expander, including a tank body used for the foam pre-expander, a cover body fixedly connected to the top of the tank body, a stirring and scraping switching mechanism arranged between the cover body and the tank body, a steam inlet pipe fixedly connected to the top of the tank body, a feed hopper fixedly connected to the top of the tank body, a detachable metal impurity cleaning mechanism arranged between the feed hopper and the tank body, and a toggle mechanism arranged on the feed hopper. The utility model has the following advantages and effects: metal impurities in foam particles can be cleaned out to avoid damage to the foam pre-expander caused by metal impurities, while improving the effect of foam pre-expander, and a scraper can scrape the side wall and bottom wall of the tank body, so that the scraping and cleaning of foam particle impurities adhering to the inner wall of the tank body is more comprehensive and thorough, improving the effect of impurity cleaning, and facilitating the cleaning of the tank body at a later stage.

Description

Technical Field

[0001] The utility model relates to the technical field of foam pre-expanders, in particular to an impurity cleaning device of a foam pre-expander. Background Art

[0002] Pre-foaming machine is a common machine for foam production, most of which adopt steam foaming. The high-temperature steam generated by the external steam engine is input into the tank through the pipeline to heat and foam the foam particles stored in the tank, and then the processed foam is taken out. After searching: a fully automatic foam pre-expanding machine with the patent number CN218053652U, after the processing is completed, when the scraper abuts against the inner wall of the tank and cleans the foam particles on the inner wall, at this time, multiple nozzles can be connected to the high-pressure water source, and the water source will be sprayed vertically downward from the top of the scraper, so as to wash the inner wall of the reaction tank and the scraper surface, and the cleaning water flow can be led out from the discharge pipe at the bottom of the reaction tank. Finally, the tank door can be opened to check the cleaning effect and assist in cleaning the bottom of the reaction tank, so as to achieve the foam manufacturing process. After the processing is completed, when the scraper cleans the foam particles on the inner wall of the tank, it will be able to remove certain impurities on the scraper surface, which will be more conducive to cleaning the scraper surface.

[0003] However, the above-mentioned foam pre-expander still has some shortcomings. Because metal debris is mixed in the foam particles, it is inconvenient to clean out the metal debris in the foam particles, which makes it easy for the metal debris to damage the foam pre-expander and reduces the effect of foam pre-expander. At the same time, it is inconvenient for the scraper to scrape the inner wall of the bottom of the reaction tank, and it is inconvenient to scrape and clean the foam particle impurities adhered to the bottom wall of the tank body, which reduces the effect of impurity cleaning. Therefore, we propose an impurity cleaning device for a foam pre-expander to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an impurity cleaning device for a foam pre-expander, which can clean out metal impurities in foam particles to avoid damage to the foam pre-expander by the metal impurities, while improving the foam pre-expander effect; and a scraper can scrape the side wall and the bottom wall of a tank body, so that the scraping and cleaning of foam particle impurities adhered to the inner wall of the tank body can be more comprehensive and thorough, thereby improving the impurity cleaning effect and facilitating the cleaning of the tank body at a later stage.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: it includes a tank body for use in a foam pre-expander, the top of the tank body is fixedly connected to a cover body, a stirring and scraping switching mechanism is arranged between the cover body and the tank body, the top of the tank body is fixedly connected to a steam inlet pipe, the top of the tank body is fixedly connected to a feed hopper, a detachable metal impurity removing mechanism is arranged between the feed hopper and the tank body, and a toggle mechanism is arranged on the feed hopper.

[0006] The utility model is further configured as follows: an opening is provided on one side of the feed hopper, a limiting groove is provided on the inner wall on the other side of the feed hopper, a slide groove is provided on the top of the tank body, the detachable metal impurity removing mechanism includes a mounting frame slidably sleeved in the opening and the limiting groove, and a vertical spring fixedly connected to the inner wall at the bottom of the slide groove, a plurality of electromagnetic rods are fixedly connected to the front and rear inner walls of the mounting frame, a sliding block is fixedly connected to the top of the vertical spring, a limiting block is fixedly connected to the top of the sliding block, and the limiting block movably abuts against an inner wall on one side of the mounting frame.

[0007] By adopting the above technical scheme, the metal impurities in the foam particles can be adsorbed by the magnetism of the electromagnetic rod, and then the metal impurities in the foam particles can be removed, so as to avoid the metal impurities from damaging the foam pre-expanding machine, and at the same time improve the effect of foam pre-expanding. After the unloading is completed, the limit block is pressed downward, and it is retracted into the slide groove without limiting the installation frame. At this time, the installation frame can be pulled out, and the power of the electromagnetic rod is cut off to make it lose its magnetism. When it loses its magnetism, the metal impurities automatically fall from the electromagnetic rod for collection and processing. When the cleaning is completed, the installation frame is pressed accordingly, and the limit block is automatically compressed back into the slide groove and squeezes the vertical spring. When it is fully inserted, the limit block is not squeezed by the installation frame. At this time, under the elastic force of the vertical spring, the limit block extends upward and abuts against one side of the installation frame, so that the installation frame can be limited and fixed.

[0008] The utility model is further configured as follows: the sliding block is slidably sleeved in the sliding groove, the mounting frame is movably abutted against one side of the feed hopper, and a hand-holding groove is provided on one side of the mounting frame.

[0009] By adopting the above technical solution, it is convenient to guide the slider and it is also convenient for personnel to pull the installation frame.

[0010] The utility model is further configured as follows: the toggle mechanism includes a driving motor fixedly connected to the front side of the feed hopper, a rotating drum is fixedly connected to the output shaft of the driving motor, a plurality of toggle plates are fixedly connected to the outer side of the rotating drum, a rotating shaft is fixedly connected to the output shaft of the driving motor, and the rotating drum is fixedly sleeved on the outer side of the rotating shaft.

[0011] By adopting the above technical solution, the driving motor drives the rotation of the rotating shaft and the rotating drum, and the rotating drum drives the rotation of multiple paddles, thereby paddle the foam particles so that they can flow down evenly and smoothly, avoiding accumulation caused by excessive flow and affecting the effect of the electromagnetic rod on the adsorption of metal impurities.

[0012] The utility model is further configured as follows: the stirring and scraping switching mechanism includes an air pump fixedly connected to the top of the cover body, a servo motor fixedly connected to the top of the tank body and a hollow tube rotatably connected to the top of the tank body, a driving tooth is fixedly connected to the output shaft of the servo motor, a driven tooth is fixedly provided on the outer fixed sleeve of the hollow tube, the driving tooth is meshed with the driven tooth, the bottom of the air pump is fixedly connected to an air intake pipe, an upper solenoid valve is provided in the air intake pipe, the top end of the hollow tube is rotatably connected to the bottom end of the air intake pipe, two sleeves are fixedly connected on both sides of the hollow tube, a piston is slidably provided in the sleeve, a piston rod is fixedly connected to one side of the piston, one end of the two piston rods on the same side is fixedly connected to the same scraper, and the two scrapers are movably abutted against the inner wall of the tank body.

[0013] By adopting the above technical scheme, high-temperature steam is injected through the steam inlet pipe, and the servo motor is started at the same time. The servo motor drives the rotation of the active gear, and the active gear drives the rotation of the driven gear, the hollow tube, the sleeve, the piston rod and the scraper, so that the foam particles can be stirred, so that the heat is more uniform, and the foam pre-expansion effect is better. When the processing is completed, the lower solenoid valve is opened, and the processed foam is discharged from the discharge pipe. After the discharge, the air pump and the upper solenoid valve are started, and the air pump can draw the outside air into the air inlet pipe, the hollow tube and the sleeve. Under air pressure, the piston in the sleeve will be pushed outward. The outward movement of the piston on the same side drives the outward movement of the piston rod and the scraper and abuts against the inner wall of the tank body. At this time, it is observed through the high-temperature resistant transparent glass. After the abutment, the air pump and the upper solenoid valve are closed. At this time, the servo motor is started, which will drive the rotation of the scraper. Through the rotation of the scraper, the foam particle impurities adhering to the side wall and the bottom wall of the tank body can be scraped off and discharged from the discharge pipe, which is conducive to the cleaning of the tank body in the later stage.

[0014] The utility model is further configured as follows: the bottom end of the air intake pipe is fixedly connected to a sealing bearing, and the hollow tube is fixedly sleeved in the inner ring of the sealing bearing.

[0015] By adopting the above technical solution, the hollow tube can be rotatably connected to the bottom end of the air inlet pipe so that it does not hinder the rotation of the hollow tube, and at the same time a sealing effect can be achieved to avoid air leakage.

[0016] The utility model is further configured as follows: an observation port is provided on one side of the tank body, and a high temperature resistant transparent glass is fixedly connected in the observation port.

[0017] By adopting the above technical solution, it is convenient for personnel to observe the processing situation.

[0018] The utility model is further configured as follows: a discharge pipe is fixedly connected to the bottom of the tank body, and a lower solenoid valve is arranged in the discharge pipe.

[0019] The adoption of the technical solution is conducive to discharging the processed foam particles.

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model drives the rotation of multiple toggle plates through a driving motor, thereby toggling the foam particles so that they can flow down evenly and smoothly, avoiding accumulation caused by excessive flow down and affecting the effect of the electromagnetic rod on the adsorption of metal impurities.

[0022] 2. The utility model can adsorb metal impurities in foam particles through the magnetism of the electromagnetic rod, and then remove the metal impurities in the foam particles, avoiding damage to the foam pre-expanding machine by the metal impurities, and improving the foam pre-expanding effect. The setting of the limit block and the vertical spring is not only conducive to limiting and fixing the installation frame to ensure the stability of the adsorbed metal impurities, but also conducive to the disassembly of the installation frame so as to clean up the metal impurities on the electromagnetic rod.

[0023] 3. The utility model drives the rotation of the active teeth through the servo motor, and the active teeth drive the rotation of the driven teeth, the hollow tube, the sleeve, the piston rod and the scraper, so as to stir the foam particles, make them heat more evenly, and improve the foam pre-expansion effect. After the discharge, the air pump and the upper solenoid valve are started, and the air pump can draw the outside air into the air inlet pipe, the hollow tube and the sleeve. Under the air pressure, the piston in the sleeve will be pushed to move outward, and the outward movement of the piston on the same side drives the outward movement of the piston rod and the scraper and abuts against the inner wall of the tank body. Starting the servo motor again will drive the rotation of the scraper. Through the rotation of the scraper, the foam particle impurities adhered to the side wall and the bottom wall of the tank body can be scraped off and discharged from the discharge pipe, which is conducive to the cleaning of the tank body in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a structural schematic diagram of an impurity cleaning device for a foam pre-expander proposed by the utility model;

[0026] Figure 2 This is a cross-sectional view of an impurity cleaning device of a foam pre-expander proposed by the utility model;

[0027] Figure 3 A three-dimensional diagram of a stirring and scraping switching mechanism of an impurity cleaning device of a foam pre-expander proposed by the utility model;

[0028] Figure 4 for Figure 2 The structural diagram of part A in the figure;

[0029] Figure 5 for Figure 2 Schematic diagram of the structure of part B.

[0030] In the figure, 1, tank body; 2, discharge pipe; 3, rotating drum; 4, feed hopper; 5, cover body; 6, air pump; 7, steam inlet pipe; 8, driving motor; 9, mounting frame; 10, limit block; 11, servo motor; 12, driving gear; 13, air inlet pipe; 14, driven gear; 15, hollow tube; 16, piston rod; 17, scraper; 18, sleeve; 19, upper solenoid valve; 20, toggle plate; 21, electromagnetic rod; 22, vertical spring; 23, slide groove; 24, slider; 25, piston. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1 — Figure 5 The utility model provides an impurity cleaning device for a foam pre-expander, comprising a tank body 1 used for the foam pre-expander, a cover body 5 is fixedly connected to the top of the tank body 1, a stirring and scraping switching mechanism is arranged between the cover body 5 and the tank body 1, a steam inlet pipe 7 is fixedly connected to the top of the tank body 1, a feed hopper 4 is fixedly connected to the top of the tank body 1, a detachable metal impurity cleaning mechanism is arranged between the feed hopper 4 and the tank body 1, and a toggle mechanism is arranged on the feed hopper 4.

[0033] Furthermore, an opening is provided on one side of the feed hopper 4, a limiting groove is provided on the inner wall on the other side of the feed hopper 4, a slide groove 23 is provided on the top of the tank body 1, and the detachable metal impurity removing mechanism includes a mounting frame 9 slidably sleeved in the opening and the limiting groove, and a vertical spring 22 fixedly connected to the inner wall at the bottom of the slide groove 23, a plurality of electromagnetic rods 21 are fixedly connected to the front and rear inner walls of the mounting frame 9, a slider 24 is fixedly connected to the top of the vertical spring 22, a limiting block 10 is fixedly connected to the top of the slider 24, and the limiting block 10 is movably abutted against the inner wall on one side of the mounting frame 9.

[0034] Furthermore, the slider 24 is slidably sleeved in the slide groove 23 .

[0035] Furthermore, the installation frame 9 is movably abutted against one side of the feed hopper 4 , and a hand-holding groove is provided on one side of the installation frame 9 .

[0036] Furthermore, the toggle mechanism includes a driving motor 8 fixedly connected to the front side of the feed hopper 4 , the output shaft of the driving motor 8 is fixedly connected to the rotating drum 3 , and the outer side of the rotating drum 3 is fixedly connected to a plurality of toggle plates 20 .

[0037] Furthermore, a rotating shaft is fixedly connected to the output shaft of the driving motor 8, and the rotating drum 3 is fixedly sleeved on the outer side of the rotating shaft.

[0038] Furthermore, the stirring and scraping switching mechanism includes an air pump 6 fixedly connected to the top of the cover body 5, a servo motor 11 fixedly connected to the top of the tank body 1 and a hollow tube 15 rotatably connected to the top of the tank body 1, a driving tooth 12 is fixedly connected to the output shaft of the servo motor 11, a driven tooth 14 is fixedly sleeved on the outer side of the hollow tube 15, the driving tooth 12 is meshed with the driven tooth 14, the bottom of the air pump 6 is fixedly connected to an air intake pipe 13, an upper solenoid valve 19 is arranged in the air intake pipe 13, the top end of the hollow tube 15 is rotatably connected to the bottom end of the air intake pipe 13, two sleeves 18 are fixedly connected to both sides of the hollow tube 15, a piston 25 is slidably sleeved in the sleeve 18, a piston rod 16 is fixedly connected to one side of the piston 25, one end of the two piston rods 16 on the same side is fixedly connected to the same scraper 17, and the two scrapers 17 are both movably abutted against the inner wall of the tank body 1.

[0039] Furthermore, the bottom end of the air inlet pipe 13 is fixedly connected to a sealing bearing, and the hollow tube 15 is fixedly sleeved in the inner ring of the sealing bearing.

[0040] Furthermore, an observation port is provided on one side of the tank body 1, and a high temperature resistant transparent glass is fixedly connected in the observation port.

[0041] Furthermore, the bottom of the tank body 1 is fixedly connected to a discharge pipe 2 , and a lower solenoid valve is arranged in the discharge pipe 2 .

[0042] According to the utility model, after pouring foam particles into the feed hopper 4, the rotation of the rotating shaft and the rotating drum 3 is driven by the driving motor 8, and the rotating drum 3 drives the rotation of multiple toggling pieces 20, thereby toggling the foam particles so that they can flow down evenly and smoothly, avoiding excessive downflow and accumulation to affect the effect of the electromagnetic rod 21 on the adsorption of metal impurities. Under the toggling, the foam particles flow down, and the magnetism of the electromagnetic rod 21 can adsorb the metal impurities in the foam particles, thereby removing the metal impurities in the foam particles, avoiding the metal impurities from damaging the foam pre-expander, and improving the effect of the foam pre-expander. , after unloading is completed, the limit block 10 is pressed downward, and it retracts into the slide groove 23 without limiting the installation frame 9. At this time, the installation frame 9 can be pulled out, and the electromagnetic rod 21 is powered off to make it lose its magnetism. When it loses its magnetism, metal impurities automatically fall from the electromagnetic rod 21 for collection and processing. When the cleaning is completed, the installation frame 9 is pressed accordingly. At this time, the limit block 10 is automatically compressed back into the slide groove 23 and squeezes the vertical spring 22. When it is fully inserted, the limit block 10 is not squeezed by the installation frame 9. At this time, under the elastic force of the vertical spring 22, the limit block 10 extends upward and abuts On one side of the mounting frame 9, the mounting frame 9 can be limited and fixed, and high-temperature steam is injected through the steam inlet pipe 7. At the same time, the servo motor 11 is started, and the servo motor 11 drives the rotation of the active gear 12. The active gear 12 drives the rotation of the driven gear 14, the hollow tube 15, the sleeve 18, the piston rod 16 and the scraper 17, so that the foam particles can be stirred to make them more evenly heated and improve the foam pre-expansion effect. When the processing is completed, the lower solenoid valve is opened, and the processed foam is discharged from the discharge pipe 2. After the discharge, the air pump 6 and the upper solenoid valve 19 are started, and the air pump 6 can remove the external Air is drawn into the air inlet pipe 13, the hollow tube 15 and the sleeve 18. Under air pressure, the piston 25 in the sleeve 18 is pushed to move outward. The outward movement of the piston 25 on the same side drives the piston rod 16 and the scraper 17 to move outward and abut against the inner wall of the tank body 1. At this time, it is observed through the high-temperature resistant transparent glass. After the abutment, the air pump 6 and the upper solenoid valve 19 are closed. At this time, the servo motor 11 is started, which will drive the rotation of the scraper 17. Through the rotation of the scraper 17, the foam particle impurities adhering to the side wall and the bottom wall of the tank body 1 can be scraped off and discharged from the discharge pipe, which is conducive to the later cleaning of the tank body 1.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An impurity cleaning device for a foam pre-expander, characterized in that: The invention comprises a tank body (1) for use in a foam pre-expander, the top of the tank body (1) being fixedly connected to a cover body (5), a stirring and scraping switching mechanism being provided between the cover body (5) and the tank body (1), a steam inlet pipe (7) being fixedly connected to the top of the tank body (1), a feed hopper (4) being fixedly connected to the top of the tank body (1), a detachable metal impurity removing mechanism being provided between the feed hopper (4) and the tank body (1), and a toggle mechanism being provided on the feed hopper (4).

2. The impurity cleaning device of the foam pre-expander according to claim 1, characterized in that: An opening is provided on one side of the feed hopper (4), a limiting groove is provided on the inner wall on the other side of the feed hopper (4), a slide groove (23) is provided on the top of the tank body (1), the detachable metal impurity removing mechanism comprises a mounting frame (9) slidably mounted in the opening and the limiting groove, and a vertical spring (22) fixedly connected to the inner wall at the bottom of the slide groove (23), a plurality of electromagnetic rods (21) are fixedly connected to the front and rear inner walls of the mounting frame (9), a slider (24) is fixedly connected to the top of the vertical spring (22), a limiting block (10) is fixedly connected to the top of the slider (24), and the limiting block (10) is movably abutted against the inner wall on one side of the mounting frame (9).

3. The impurity cleaning device of the foam pre-expander according to claim 2, characterized in that: The sliding block (24) is slidably sleeved in the sliding groove (23).

4. The impurity cleaning device of the foam pre-expander according to claim 2, characterized in that: The installation frame (9) is movably abutted against one side of the feed hopper (4), and a hand-holding groove is provided on one side of the installation frame (9).

5. The impurity cleaning device of the foam pre-expander according to claim 1, characterized in that: The toggle mechanism comprises a driving motor (8) fixedly connected to the front side of the feed hopper (4), a rotating drum (3) fixedly connected to the output shaft of the driving motor (8), and a plurality of toggle plates (20) fixedly connected to the outer side of the rotating drum (3).

6. The impurity cleaning device of the foam pre-expander according to claim 5, characterized in that: A rotating shaft is fixedly connected to the output shaft of the driving motor (8), and the rotating drum (3) is fixedly sleeved on the outer side of the rotating shaft.

7. The impurity cleaning device of the foam pre-expander according to claim 1, characterized in that: The stirring and scraping switching mechanism comprises an air pump (6) fixedly connected to the top of the cover body (5), a servo motor (11) fixedly connected to the top of the tank body (1), and a hollow tube (15) rotatably connected to the top of the tank body (1), a driving tooth (12) fixedly connected to the output shaft of the servo motor (11), a driven tooth (14) fixedly sleeved on the outer side of the hollow tube (15), the driving tooth (12) meshing with the driven tooth (14), and an air inlet pipe (13) fixedly connected to the bottom of the air pump (6), the air inlet pipe (13) An upper solenoid valve (19) is arranged in the air pipe (13); the top end of the hollow pipe (15) is rotatably connected to the bottom end of the air inlet pipe (13); two sleeves (18) are fixedly connected to both sides of the hollow pipe (15); a piston (25) is slidably sleeved in the sleeve (18); one side of the piston (25) is fixedly connected to a piston rod (16); one end of the two piston rods (16) on the same side is fixedly connected to the same scraper (17); and the two scrapers (17) are movably abutted against the inner wall of the tank body (1).

8. The impurity cleaning device of the foam pre-expander according to claim 7, characterized in that: The bottom end of the air inlet pipe (13) is fixedly connected to a sealing bearing, and the hollow tube (15) is fixedly sleeved in the inner ring of the sealing bearing.

9. The impurity cleaning device of the foam pre-expander according to claim 1, characterized in that: An observation port is provided on one side of the tank body (1), and a high temperature resistant transparent glass is fixedly connected inside the observation port.

10. The impurity cleaning device of the foam pre-expander according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly connected to a discharge pipe (2), and a lower solenoid valve is arranged in the discharge pipe (2).

Images