CN116494386B

CN116494386B - Foam generating device

Info

Publication number: CN116494386B
Application number: CN202310769538.8A
Authority: CN
Inventors: 杨永; 王泽旺
Original assignee: Shandong Mgjiatu New Material Technology Co ltd
Current assignee: Shandong Mgjiatu New Material Technology Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-09-05
Anticipated expiration: 2043-06-28
Also published as: CN116494386A

Abstract

The application discloses a foam generating device, which comprises a foaming tank, an output pipe for outputting foaming foam in the foaming tank, and a transition cavity for connecting the foaming tank and the output pipe, wherein a static filter assembly and a dynamic filter assembly are sequentially arranged in the transition cavity along the moving direction of the foam, the size of a filter hole on the static filter assembly is larger than that of the filter hole on the dynamic filter assembly, the static filter assembly realizes the opening and closing of the filter hole based on the movement of the dynamic filter assembly, and the filter hole on the static filter assembly is gradually closed in the stroke of the dynamic filter assembly close to the static filter assembly; when the movable filter assembly is close to the static filter assembly, the filter holes on the static filter assembly are closed, and the movable filter assembly and the static filter assembly can squeeze foams filtered by the movable filter assembly, so that the foams are broken to form foams which can pass through the filter holes of the movable filter assembly, and the size of the foams mixed with concrete can be effectively controlled within a range.

Description

Foam generating device

Technical Field

The application relates to the technical field related to self-heat-preservation building block production, in particular to a foam generating device.

Background

The self-heat-preservation building block is a multi-row hole building block which is formed by concrete mixture composed of coarse and fine aggregate, cementing material, fly ash, additive, water and the like through a building block forming machine, meets the heat preservation requirement and does not need heat preservation treatment.

The porous distribution formed in the building block is formed by mixing the foaming agent and the concrete after foaming the foaming agent based on a foaming machine, the strength of the building block is determined by the size of the foam after mixing the foaming agent and the concrete, the problems caused by larger bubbles are poor casting stability, poor heat preservation of the foam concrete, high water absorption rate of continuous pores, more small bubbles, more pore wall pairs and more supports among the bubbles, and the strength of the foam concrete is higher.

If the bulletin number is CN104069765B and the bulletin date is 2016 and 24, the patent is issued, and the full-automatic foaming machine belongs to the technical field of chemical machinery. The full-automatic foaming machine comprises a stirrer, a foaming box, a controller, a stirrer platform, a support fixed on a foundation and an eccentric rotary table for fixing the foaming box, wherein the stirrer comprises a stirring shaft and stirring blades arranged at the end part of the stirring shaft, and the stirring shaft is driven by a stirrer self-rotating motor; the stirrer platform is connected with the support in a sliding manner, a lifting device for enabling the stirrer platform to reciprocate along the support in the vertical direction is arranged between the stirrer platform and the support, and the lifting device is driven by a stirrer stroke motor. The full-automatic foaming machine increases the full mixing of air and foaming agent from the horizontal direction and the vertical direction respectively through the stirrer self-rotating motor and the stirrer travel motor, so as to ensure the foaming effect; the foaming box eccentrically rotates relative to the stirring shaft, so that stirring dead angles are fundamentally eliminated, uniform mixing is ensured, and foaming quality is improved.

The prior art has the defects that after the foaming agent is foamed by stirring the mixed gas, the foaming agent needs to be conveyed into a concrete mixer to be mixed with concrete, and the foaming agent is mixed with air randomly in the process of stirring and gas mixing foaming treatment, the size of the generated foam is difficult to be effectively controlled, so that the size of an air hole in a building block manufactured by mixing the foam with the concrete is difficult to be maintained in a proper range.

Disclosure of Invention

The application aims to provide a foam generating device which solves the technical problems in the related art.

In order to achieve the above object, the present application provides the following technical solutions:

the utility model provides a foam generating device, includes the foaming jar and will foam output's output tube in the foaming jar, still including connecting the foaming jar with the transition chamber of output tube, the transition intracavity is equipped with quiet subassembly and dynamic filter assembly in proper order along the direction of movement of foam, the filtration pore size on the quiet subassembly of straining is greater than the filtration pore size on the dynamic filter assembly, quiet filter assembly is based on move the removal realization filtration pore of straining the subassembly and open and shut, move the subassembly of straining be close to in the stroke of quiet subassembly of straining, the filtration pore on the quiet subassembly of straining is closed gradually.

Above-mentioned, quiet filter component including the rigid coupling in quiet framework on the transition chamber, quiet framework is located transition intracavity's part is equipped with main filter plate and vice filter plate, just main filter plate is in rotate on the quiet framework and set up, main filter plate with be equipped with first elastic component between the quiet framework, vice filter plate with fixed setting on the quiet framework, main filter plate with move and be connected with the stay cord between the filter component, move the filter component and keep away from in the stroke of quiet framework, drive through the stay cord main filter plate rotates, the filtration pore on the main filter plate with the filtration pore on the vice filter plate coincide gradually.

Above-mentioned, the filtration pore on the main filter plate divide into the multiunit and arranges in parallel in the circumference, and every group filtration pore is arranged in parallel in radial direction and arc length gets longer gradually, and the arrangement of two adjacent groups filtration pore is also in the radial direction and alternately arranges, the filtration pore on the vice filter plate arrange with the filtration pore on the main filter plate is arranged the same.

Above-mentioned, two arc edges of the filtration pore on the main filter plate towards one side of the foaming tank are arranged in the axial direction in a high-low mode.

Above-mentioned, two arc limits of the filtration pore towards output tube one side on the vice filter plate are the height and arrange in the axial, works as the filtration pore on the main filter plate with the filtration pore on the vice filter plate is put mutually wrong completely, on the main filter plate with the position department that the filtration pore is relative on the vice filter plate articulates has a plurality of thorn bubble needles, the main filter plate with articulated between the thorn bubble needle and the articulated department of the two is equipped with the second elastic component, and under the effect of second elastic component, the thorn bubble needle has the trend of arranging along the axial all the time.

Above-mentioned, move and strain the subassembly including sliding locate the inside filter of transition chamber, and drive the drive piece that the filter removed, the drive piece with carry out kinetic energy transmission through magnetic force between the filter, just the stay cord is connected the main filter plate with the drive piece.

In the above-mentioned manner, the two axial ends of the filter plate are respectively provided with a scraping plate with a truncated cone structure, and in the moving stroke of the filter plate, the scraping plates scrape down the foam adhered to the wall of the transition cavity and transfer the foam to the filtering hole part of the filter plate.

The pull rope has elasticity, and the stiffness coefficient of the first elastic piece is larger than that of the pull rope.

Above-mentioned, be equipped with spacing subassembly on the quiet framework, work as behind the filtration pore on the main filter plate with behind the filtration pore on the vice filter plate is complete, spacing subassembly is right the position of main filter plate is restricted, be equipped with the trigger piece on the driving piece the filter is close to in the stroke of vice filter plate, the trigger piece contact spacing subassembly promotes spacing subassembly loses to the position limitation of main filter plate.

In the above-mentioned, the filtering holes on the main filter plate and the filtering holes on the auxiliary filter plate are not overlapped to be overlapped completely, and the limiting component can limit the main filter plate at any position.

The application has the beneficial effects that: firstly, through setting up quiet filtration subassembly in the transition intracavity, can play a filtration effect to the foam of being carried, through setting up the dynamic filtration subassembly in the transition intracavity, can play the secondary filtration effect to the foam that passes through quiet filtration subassembly.

Secondly, when the movable filter assembly is close to the static filter assembly, the filter holes on the static filter assembly are closed, the movable filter assembly and the static filter assembly can squeeze foams filtered by the movable filter assembly, so that the foams are broken to form foams which can pass through the filter holes of the movable filter assembly, and the size of the foams mixed with concrete can be effectively controlled within a range.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic plan view showing a transitional cavity of a foam generating device according to a first embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a transition chamber of a foam generating device according to a first embodiment of the present application;

fig. 3 is a schematic perspective view of a main filter plate and an auxiliary filter plate of a foam generating device according to a first embodiment of the present application;

FIG. 4 is a schematic cross-sectional view showing the state of the foam injection needle when the filter holes on the main filter plate and the filter holes on the auxiliary filter plate of the foam generating device are completely overlapped and completely not overlapped;

FIG. 5 is an enlarged schematic view of the structure of FIG. 2 at A;

fig. 6 is a schematic diagram of a matching structure of a main filter plate and a limiting component of a foam generating device according to a third embodiment of the present application;

FIG. 7 is an enlarged schematic view of the structure of FIG. 2 at B;

fig. 8 is a schematic cross-sectional view of a transition chamber of a foam generating device according to a fourth embodiment of the present application.

Reference numerals illustrate:

1. a transition chamber; 10. breaking the filter plate; 11. a first wire block; 12. an auxiliary frame; 13. a first rupturing needle; 2. a static filtration assembly; 20. a static frame; 21. a main filter plate; 22. an auxiliary filter plate; 23. a pull rope; 24. a puncture needle; 3. a dynamic filtration assembly; 30. a filter plate; 31. a second wire block; 310. a slot; 311. a rod; 312. a limit opening; 313. a limit air bag; 314. a spacing cavity; 315. a block; 32. a scraper; 33. a trigger; 4. a limit component; 40. limiting notch; 41. a deflector rod; 42. limiting plug blocks; 43. a stop block; 44. a push rod; 5. foam flow direction.

Detailed Description

In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, in a first embodiment of the present application, a foam generating apparatus is provided, which includes a foaming tank, and an output pipe (the foaming tank and the output pipe are both in the prior art and are not shown in the specification and the drawing) for outputting the foaming foam in the foaming tank, and further includes a transition chamber 1 for connecting the foaming tank and the output pipe, that is, one end of the transition chamber 1 is connected to the foaming tank, the other end is connected to the output pipe, the transition chamber 1 is a chamber formed in a housing and capable of carrying the foaming foam, a static filter assembly 2 and a dynamic filter assembly 3 are sequentially arranged in the transition chamber 1 along the moving direction of the foam, the size of a filter hole on the static filter assembly 2 is larger than the size of a filter hole on the dynamic filter assembly 3, the static filter assembly 2 realizes opening and closing of the filter hole on the basis of the movement of the dynamic filter assembly 3, and the filter hole on the static filter assembly 2 is gradually closed in the stroke close to the static filter assembly 2.

Specifically, the transition chamber 1 is of a circular tube-shaped structure, the transition chamber 1 and the foaming tank are connected through a flange, the transition chamber 1 is connected with the output tube through the flange, the static filter assembly 2 is installed at one end of the transition chamber 1, which is close to the foaming tank, the dynamic filter assembly 3 and the transition chamber 1 are connected in an axial sliding manner, the initial position of the dynamic filter assembly 3 is close to one end of the output tube on the transition chamber 1, the dynamic filter assembly 3 slides on the transition chamber 1 and is provided with a power source, the static filter assembly 2 can realize opening and closing of the filter holes based on movement of the dynamic filter assembly 3, then the power source of the dynamic filter assembly 3 can be realized through a set of linkage mechanism, if the power source drives the dynamic filter assembly 3 to be close to or far away from the static filter assembly 2, partial power is transmitted to the static filter assembly 2 through the linkage mechanism, so that the opening and closing actions of the filter holes are realized on the static filter assembly 2, or the static filter assembly 2 is also provided with a power source for driving the mechanism of the opening and closing actions in the transition chamber, and the dynamic filter assembly 3 can be connected through a sensor, if the dynamic filter assembly is close to the dynamic filter assembly 3 or the static filter assembly is far away from the static filter assembly 2, and the signal can be transmitted through the sensor 2, and the signal can be changed, and the signal can be opened and closed, and the signal can be transmitted.

During operation, foaming agent in the foaming tank can continuously generate foams of different sizes in the foaming process, after the foam quantity reaches the conveying standard, the output pipe outputs the foam, when the foam passes through the transition cavity 1, the static filter assembly 2 is used for filtering once, the foam which cannot pass through the filter holes of the static filter assembly 2 is continuously left in the foaming tank and is stirred and destroyed to form the foam of small size, the filter holes of the static filter assembly 2 enter the transition cavity 1, the foam which enters the transition cavity 1 can enter the output pipe after passing through the dynamic filter assembly 3, the foam with the size larger than the filter hole size on the dynamic filter assembly 3 is left in the transition cavity 1, more and more foam with the larger size is accumulated in the transition cavity 1, the dynamic filter assembly 3 starts to touch from the position farthest from the static filter assembly 2, during the period, the foam with the smaller size can still pass through the filter holes on the dynamic filter assembly 3, the foam with the larger size is pushed to the static filter assembly 2, the static filter assembly 2 is pushed to move through the filter assembly 3, the foam with the larger size can enter the transition cavity 1 after the foam is closed, the foam with the larger size is gradually reduced, the foam is gradually pushed down from the filter assembly 2, the filter assembly is gradually opened, the foam is gradually reaches the filter assembly 2 after the filter hole is opened, and the filter assembly is gradually opened, and the filter assembly is gradually is opened, and the filter is gradually is opened from the filter assembly 2 after the filter assembly is opened, the filter hole is gradually is opened, and the filter is gradually is opened.

The beneficial effects of this embodiment lie in: firstly, through setting up quiet filter component 2 in transition chamber 1, can play a filter action to the foam that is carried, through setting up dynamic filter component 3 in transition chamber 1, can play the secondary filter action to the foam that passes through quiet filter component 2.

Secondly, when the movable filter assembly 3 is close to the static filter assembly 2, the filter holes on the static filter assembly 2 are closed, and the movable filter assembly 3 and the static filter assembly 2 can squeeze the foams filtered by the movable filter assembly 3, so that the foams are broken to form foams which can pass through the filter holes of the movable filter assembly 3, and the size of the foams mixed with concrete can be effectively controlled within a range.

Thirdly, open and shut of filtration pore on static filter assembly 2 at every turn for foam in the foaming tank forms action of intermittent type formula, ration material loading when exporting through the output tube, and the foam volume of entering concrete mixing tank at every turn can not be very much like this, can make the mixing efficiency and the mixing effect between foam and the concrete all improve to some extent.

Preferably, the static filter assembly 2 comprises a static frame body 20 fixedly connected to the transition cavity 1, a main filter plate 21 and an auxiliary filter plate 22 are arranged at the part of the static frame body 20 located in the transition cavity 1, the main filter plate 21 is rotatably arranged on the static frame body 20, a first elastic piece is arranged between the main filter plate 21 and the static frame body 20, the auxiliary filter plate 22 and the static frame body 20 are fixedly arranged, a pull rope 23 is connected between the main filter plate 21 and the dynamic filter assembly 3, the dynamic filter assembly 3 is driven to rotate through the pull rope 23 in the stroke far away from the static frame body 20, and the filter holes on the main filter plate 21 and the filter holes on the auxiliary filter plate 22 are gradually overlapped.

Specifically, the static frame body 20 is of a circular ring structure, one end of the transition cavity 1, which is close to the foaming tank, is separated by a part, the part is connected with the foaming tank through a flange, the static frame body 20 is fixedly connected with the transition cavity 1, the main filter plate 21 and the auxiliary filter plate 22 are of a circular cake structure, the axes of the main filter plate 21 and the auxiliary filter plate 22 coincide with the axis of the transition cavity 1, so that the first elastic piece can be arranged on the axis of the main filter plate 21 and the auxiliary filter plate 22, for example, the main filter plate 21 and the auxiliary filter plate 22 are connected on the axis through a circular shaft, the first elastic piece is a torsion spring, one end of the torsion spring is fixedly connected with the main filter plate 21, the other end of the torsion spring is fixedly connected with the auxiliary filter plate 22, and sliding fit is carried out between the opposite surfaces of the main filter plate 21 and the auxiliary filter plate 22.

When the movable filter assembly 3 is far away from the auxiliary filter plate 22 in operation, the main filter plate 21 is pulled to rotate along the axis by the pull rope 23, in the process, a cavity for the main filter plate 21 to rotate is arranged on the static frame body 20, two fixed pulleys are arranged in the cavity, as shown in fig. 2 and 5, one fixed pulley is axially and horizontally and radially parallel to the main filter plate 21, the fixed pulley converts the original horizontal direction of one end of the pull rope 23 connected with the main filter plate 21 into the vertical direction, the other fixed pulley changes the vertical direction of the end of the pull rope 23 into the horizontal direction tangential to the edge of the main filter plate 21, thus the axial pulling force of the pull rope 23 given by the movable filter assembly 3 can form the pulling force on the circumference of the main filter plate 21 after passing through the two fixed pulleys, the length of the pull rope 23 needs to meet the whole path distance from incomplete coincidence to complete coincidence of the filter holes on the main filter plate 21 and the filter holes on the auxiliary filter plate 22, the movable filter assembly 3 can reach the position farthest from the static frame body 20 on the transition cavity 1, but when the movable filter assembly 3 is contacted with the auxiliary filter plate 22, the filter holes on the main filter plate 21 cannot be completely overlapped with the filter holes on the auxiliary filter plate 22, otherwise, in the process that the movable filter assembly 3 is close to the auxiliary filter plate 22, the foam with larger size is pushed back to the foaming tank by the movable filter assembly 3, so that when the distance of the movable filter assembly 3 away from the auxiliary filter plate 22 reaches a certain value, for example, before one third or one half of the farthest distance between the movable filter assembly 3 and the auxiliary filter plate 22, the pull rope 23 is in a soft state and cannot generate pulling force on the main filter plate 21, when the movable filter assembly 3 is away from one third or one half of the farthest distance between the movable filter assembly 3 and the auxiliary filter plate 22, the pull rope 23 starts to tighten, when the movable filter assembly 3 is away from the auxiliary filter plate 22, the pull rope 23 starts to generate pulling force on the main filter plate 21, the elastic force of the first elastic member increases until the distance between the movable filter assembly 3 and the auxiliary filter plate 22 reaches the farthest, and at this time, the filter holes on the main filter plate 21 completely coincide with the filter holes on the auxiliary filter plate 22, so that the foam can pass through the transition cavity 1 from the foaming tank at the maximum flow rate.

In the stroke of the movable filter assembly 3 near the auxiliary filter plate 22, due to the rebound force of the first elastic piece, when the movable filter assembly 3 is initially near the front two thirds or one half of the distance of the auxiliary filter plate 22, the main filter plate 21 and the auxiliary filter plate 22 rotate relatively, the filter holes on the main filter plate 21 and the auxiliary filter plate 22 are gradually staggered, but the process does not influence the passing of foam, but can influence the passing quantity of foam, the foam passing through the filter holes on the movable filter assembly 3 can be continuously introduced into the output pipe to be output, the foam which cannot pass through the filter holes on the movable filter assembly 3 is filtered in the transition cavity 1, and after the filter holes on the main filter plate 21 and the filter holes on the auxiliary filter plate 22 are completely staggered, the movable filter assembly 3 is continuously moved to be matched with the auxiliary filter plate 22 to squeeze and crack the foam with a larger size in the transition cavity 1.

Preferably, the filter holes on the main filter plate 21 are divided into a plurality of groups of filter holes which are arranged in parallel in the circumferential direction, each group of filter holes is arranged in parallel in the radial direction and the arc length is gradually prolonged, the arrangement of two adjacent groups of filter holes is alternately arranged in the radial direction, and the arrangement of the filter holes on the auxiliary filter plate 22 is the same as that of the filter holes on the main filter plate 21; specifically, when the filter holes on the main filter plate 21 are completely overlapped with the filter holes on the auxiliary filter plate 22, all the positions on the main filter plate 21 are axially aligned with all the positions on the auxiliary filter plate 22, and when the filter holes on the main filter plate 21 are completely misaligned with the filter holes on the auxiliary filter plate 22, the filter holes on the same circular arc on the auxiliary filter plate 22 are blocked by the part between the radially adjacent two filter holes on the main filter plate 21, otherwise, the filter holes on the same circular arc on the main filter plate 21 are blocked by the part between the radially adjacent two filter holes on the auxiliary filter plate 22; in the prior art, the opening and closing of the holes are realized by rotating two plates, for example, a plurality of groups of circular holes are formed in parallel in the circumferential direction, and each group of circular holes are arranged in parallel in the radial direction, but the distance between two circular holes at adjacent positions in the circumferential direction is prolonged along with the increase of the radial dimension, so that the utilization rate of the plates is lower, and the problem can occur in an opening mode of the like.

Preferably, a first guiding inclined plane is disposed on the main filter plate 21 facing the side of the foaming tank, and the first guiding inclined plane makes the periphery of the filtering holes on the main filter plate 21 form an inclined structure, so that when the foam in the foaming tank contacts with the part of the main filter plate 21, the foam tends to enter the filtering holes along the inclined direction of the first guiding inclined plane, so as to reduce the obstruction of the part without filtering holes on the main filter plate 21 to the movement of the foam.

Further, a second guiding inclined plane is arranged on the auxiliary filter plate 22 towards one side of the output pipe, when the filtering holes on the main filter plate 21 are completely staggered with the filtering holes on the auxiliary filter plate 22, a plurality of foam puncturing needles 24 are hinged at the positions of the main filter plate 21 opposite to the filtering holes on the auxiliary filter plate 22, second elastic pieces are arranged at the hinged positions of the main filter plate 21 and the foam puncturing needles 24, and under the action of the second elastic pieces, the foam puncturing needles 24 always have a trend of being axially distributed.

Specifically, the second guiding inclined plane makes the periphery of the filtering hole facing to one side of the output pipe on the auxiliary filter plate 22 form an inclined structure, when the movable filter assembly 3 pushes the foam with larger size, after the filtering hole on the main filter plate 21 and the filtering hole on the auxiliary filter plate 22 are completely staggered, the foam can slide into the filtering hole of the auxiliary filter plate 22 along the inclined direction of the second guiding inclined plane, the foam puncturing needles 24 arranged on the main filter plate 21 are axially arranged under the elastic action of the second elastic piece, along with the increase of the extrusion force, the foam puncturing needles 24 puncture the foam in the filtering hole on the auxiliary filter plate 22 to enable the foam to form the foam with smaller size, then the foam can smoothly pass through the filtering hole on the movable filter assembly 3, the foam is ruptured in a pressing mode, the foam can be elastically deformed after being pressed, the effect of pressing the ruptured foam is crossed, the foam with the effect of larger size is destroyed by the foam puncturing needles 24, and the effect of foam rupturing can be improved relative to the pressing ruptured foam.

Preferably, the dynamic filter assembly 3 comprises a filter plate 30 slidably disposed in the transition cavity 1, and a driving member driving the filter plate 30 to move, kinetic energy is transferred between the driving member and the filter plate 30 through magnetic force, and the pull rope 23 is connected with the main filter plate 21 and the driving member, and the driving member comprises a second screw transmission assembly disposed outside the transition cavity 1, wherein kinetic energy is transferred between a second screw block 31 of the second screw transmission assembly and the filter plate 30 through magnetic force, and the pull rope 23 is connected with the main filter plate 21 and the second screw block 31.

Specifically, the driving piece drives the filter plate 30 to move in the direction of approaching or separating from the auxiliary filter plate 22 in the filter cavity, so as to realize the filtration of the foam in the transition cavity 1, and push the foam which cannot permeate the filter holes on the filter plate 30 to the auxiliary filter plate 22 for the rupture treatment, the second wire block 31 and the filter plate 30 are provided with magnet blocks, and the two magnet blocks are mutually attracted, wherein the time interval of the driving piece driving the filter plate 30 to move towards the direction of approaching the auxiliary filter plate 22 can be adjusted according to actual requirements, namely, the foam output by the foaming tank contains the foam which cannot permeate the filter holes on the filter plate 30, if the foam quantity is more, the time of approaching the auxiliary filter plate 22 per time of the filter plate 30 can be shortened, otherwise, the time of approaching the auxiliary filter plate 22 per time of the filter plate 30 can be increased, so as to avoid the excessive accumulated foam quantity which cannot permeate the filter plate 30 in the filter cavity per time, if the accumulated foam quantity in the transition cavity 1 is too much, a part of the foam can be returned to the foaming tank again when the filter plate 30 moves towards the auxiliary filter plate 22, and then the foam can be pushed into the transition cavity 1 again, and the filtration efficiency can be reduced.

Preferably, two axial ends of the filter plate 30 are respectively provided with a scraping plate 32 with a truncated cone structure, and in the moving stroke of the filter plate 30, the scraping plate 32 scrapes down the foam adhered to the wall of the transition cavity 1 and transfers the foam to a filter hole part of the filter plate 30; specifically, when the filter plate 30 moves in the transition cavity 1, the edge part of the filter plate can scrape the foam adhered to the inner wall of the transition cavity 1, but the scraped foam is difficult to transport, part of the foam stays at the edge part of the filter plate 30 all the time, and the scraper 32 moves along with the filter plate 30 to scrape the foam adhered to the inner wall of the transition cavity 1, and meanwhile, the scraped foam can enter the filter hole part by utilizing the self structural characteristics, so that the inner wall of the transition cavity 1 basically does not have residual foam, and the problem of waste of materials is avoided.

In the second embodiment of the present application, the pull cord 23 has elasticity, and the stiffness coefficient of the first elastic member is greater than the stiffness coefficient of the pull cord 23.

Specifically, in the first embodiment of the present application, it is mentioned that the length of the pulling cord 23 is required to satisfy the entire distance from the filter hole on the main filter plate 21 to the filter hole on the auxiliary filter plate 22, and the movable filter assembly 3 may reach the position farthest from the static frame 20 on the transition chamber 1, wherein the filter hole on the main filter plate 21 cannot completely coincide with the filter hole on the auxiliary filter plate 22 when the movable filter assembly 3 is in contact with the auxiliary filter plate 22, or the relatively large-sized foam is pushed back to the foaming tank by the movable filter assembly 3 during the process of the movable filter assembly 3 approaching the auxiliary filter plate 22, so that the pulling cord 23 preferably cannot generate a pulling force on the main filter plate 21 when the movable filter assembly 3 is farthest from the auxiliary filter plate 22, for example, before the farthest from the auxiliary filter plate 22 or before one-third or one-half of the distance between the two is reached, and the pulling cord 23 starts to tighten when the movable filter assembly 3 is farthest from the auxiliary filter plate 22, and the pulling cord 23 starts to generate a pulling force on the main filter plate 21 when the movable filter assembly 3 is further away from the auxiliary filter plate 22.

The pull rope 23 is not elastic, when the second wire block 31 approaches the auxiliary filter plate 22, the main filter plate 21 is rotated by the elastic force of the first elastic member to pull a part of the pull rope 23 into the static frame 20, but when the main filter plate 21 is not rotated any more, the second wire block 31 approaches the auxiliary filter plate 22, the pull rope 23 loses the power of entering the static frame 20, thus the problem of accumulation of the pull rope 23 occurs, the accumulated pull rope 23 influences the shortest distance between the second wire block 31 and the static frame 20, the shortest distance between the second wire block 31 and the auxiliary filter plate 22 cannot be reached, the squeezing action on the foam is reduced, therefore, the pull rope 23 is preferably replaced with elastic force, when the second wire block 31 is far away from the static frame 20, the second wire block 31 contacts the static frame 20 at first, the pull rope 23 is basically in the static frame 20, the problem of accumulation will not occur, because the stiffness coefficient of the first elastic member is larger than that of the pull rope 23, the pull rope 23 is stretched and the elastic force of the pull rope 23 is gradually increased, when the elastic force of the pull rope 23 overcomes the elastic force of the first elastic member, the main filter plate 21 can rotate until the filter holes on the main filter plate 21 are completely overlapped with the filter holes on the auxiliary filter plate 22, when the second wire block 31 approaches the static frame 20, under the action of the resilience force of the first elastic member, the filter holes on the main filter plate 21 are reversely rotated and gradually staggered with the filter holes on the auxiliary filter plate 22, the pull rope 23 is basically still in a stretched state until the filter holes on the main filter plate 21 are completely staggered with the filter holes on the auxiliary filter plate 22, the main filter plate 21 is not rotated any more, then the second wire block 31 is gradually contracted and retracted into the static frame 20 in the process of continuing to approach the static frame 20, the problem of stacking of the pull ropes 23 is avoided.

In the third embodiment of the present application, the static frame 20 is provided with a limiting component 4, when the filtering holes on the main filtering plate 21 and the filtering holes on the auxiliary filtering plate 22 are completely overlapped, the limiting component 4 limits the position of the main filtering plate 21, the driving component is provided with a triggering component 33, and in the stroke of the filtering plate 30 approaching the auxiliary filtering plate 22, the triggering component 33 contacts with the limiting component 4, so that the limiting component 4 loses the position limitation of the main filtering plate 21.

The limiting assembly 4 comprises two limiting gaps 40 formed in the edge of the main filter plate 21, the distance between the two limiting gaps 40 is the distance from the completely misaligned to the completely misaligned distance between the filtering holes in the main filter plate 21 and the filtering holes in the auxiliary filter plate 22, a deflector rod 41 is hinged to the static frame 20, the hinge shaft between the two is axially parallel to the horizontal radial direction of the transition cavity 1, a third elastic piece is arranged at the hinge joint between the static frame 20 and the deflector rod 41, a limiting insert block 42 is hinged to one end of the deflector rod 41, the hinge shaft between the two is axially parallel to the axial direction of the transition cavity 1, the limiting insert block 42 is inserted into the limiting gap 40, a stop block 43 is arranged on the deflector rod 41 and is close to the limiting insert block 42, the stop block 43 limits the limiting insert block 42 to swing towards the direction where the stop block 43 is located, a push rod 44 is further arranged on the static frame 20 in a sliding mode, the sliding direction of the push rod 44 is parallel to the axial direction of the transition cavity 1, the other end 44 is in contact with the second wire 31, and the second wire 33 is connected with the fourth elastic piece 33 along the direction of the trigger wire 33.

Specifically, in the process that the filtering holes on the main filter plate 21 and the filtering holes on the auxiliary filter plate 22 are completely misaligned to completely misaligned, the rotation of the main filter plate 21 can cause the limiting notch 40 which is spliced with the limiting insert 42 to generate a pushing force on the limiting insert 42, so that the limiting insert 42 swings along the hinge position of the limiting insert and the deflector rod 41 in a direction away from the stop block 43, the rotation of the main filter plate 21 in the direction is not limited, the limiting insert 42 also enters into the other limiting notch 40 from one limiting notch 40, the elastic force of the first elastic piece is increased, the main filter plate 21 has a tendency to reversely rotate, and then the limiting notch 40 where the limiting insert 42 is located can give a swinging force to the limiting insert 42 in the direction of the hinge position of the limiting insert 42 and the deflector rod 41 towards the stop block 43, but the stop block 43 limits the swinging of the limiting insert 42, so that the reverse rotation of the main filter plate 21 is limited.

In the process that the filter holes on the main filter plate 21 and the filter holes on the auxiliary filter plate 22 are completely overlapped to be completely misaligned, on the premise that the second wire block 31 is in close proximity to the static frame body 20, the trigger piece 33 can be in contact with the ejector rod 44 in advance, the trigger piece 33 pushes the ejector rod 44 to push the other end of the deflector rod 41, the other end of the deflector rod 41 swings along the hinge joint of the deflector rod 41 and the static frame body 20 after being stressed, one end of the deflector rod 41 drives the limiting insert block 42 to be separated from the limiting notch 40, so that the reverse rotation of the main filter plate 21 is not limited, the filter holes on the main filter plate 21 and the filter holes on the auxiliary filter plate 22 are completely overlapped to be completely misaligned under the resilience force of the first elastic piece, and in the process that the second wire block 31 is continuously in close proximity to the static frame body 20, the trigger piece 33 can reversely squeeze the fourth elastic piece, and the trigger piece 33 is retracted into the second wire block 31, and the contact between the second wire block 31 and the static frame body 20 is not influenced.

The trigger member 33 has a rod-like structure, and the length of the trigger member can be set according to the amount of foam which enters the transition chamber 1 and cannot pass through the filter holes of the filter plate 30, so that the foam accumulated in the transition chamber 1 is prevented from being pushed back to the foaming tank when the filter plate 30 moves towards the auxiliary filter plate 22.

Because self preservation temperature building block becomes batch production, then filter 30 needs to reciprocate in transition chamber 1 many times, then stay cord 23 can appear using fatigue, and it just has the unable problem that resumes the former length after plastic elongation, then utilizes stay cord 23 to carry out spacing to main filter plate 21 just can appear the condition that the filtration pore on main filter plate 21 and the filtration pore on the vice filter plate 22 can not overlap completely.

In order to avoid the above situation, in this embodiment, further, the second wire block 31 is provided with the slot 310, the inserting rod 311 is inserted into the slot 310, the pull rope 23 is fixedly connected with the inserting rod 311, the inserting rod 311 is provided with a plurality of limiting ports 312 in parallel along the inserting direction of the inserting rod 311, the inserting rod 311 is provided with a plurality of limiting air bags 313 in parallel along the inserting direction, the limiting ports 312 are in one-to-one correspondence and are matched with the limiting air bags 313 for inserting, the inserting rod 311 is internally provided with the limiting cavity 314, the limiting cavity 314 is internally provided with the blocking block 315 in a sliding manner, one end of the blocking block 315 and one end of the limiting cavity 314 are connected with a fifth elastic piece along the sliding direction of the blocking block 315, the stiffness coefficient of the fifth elastic piece is smaller than that of the pull rope 23, each limiting air bag 313 on the inserting rod 311 is connected with the limiting cavity 314 through an air pipe, and when in operation, the filtering holes on the main filtering plate 21 and the auxiliary filtering plate 22 are completely overlapped, when the filter plate 30 is still one third of the total distance from the auxiliary filter plate 22 to the original position, the main filter plate 21 is limited at this time, after the filter plate 30 continues to move, the elastic force generated by the pull rope 23 gives a pulling force to the insert rod 311, in the process of gradually increasing the pulling force, the insert rod 311 has a tendency to be separated from the slot 310, then the limiting air bag 313 is blocked by the limiting opening 312 and deforms, so that gas in the filter plate 30 flows towards the limiting cavity 314 through the air pipe, so that the air pressure in the limiting cavity 314 increases to generate thrust to the blocking block 315, the blocking block 315 compresses the fifth elastic piece, the limiting air bag 313 deforms until the filter plate is separated from the limiting opening 312, the insert rod 311 also pushes from the slot 310, so that under the action of the rebound force of the pull rope 23, the pull rope 23 drives the insert rod 311 to move towards the direction approaching the static frame 20, the filter plate 30 and the auxiliary filter plate 22 are in the farthest distance period, the pull cord 23 may be in an unstretched state, and when the filter plate 30 approaches the sub-filter plate 22, the insertion rod 311 is opposite to the insertion groove 310, and as the assembly of the distance between the filter plate 30 and the sub-filter plate 22 is shortened, the static frame 20 blocks the insertion rod 311, and the insertion groove 310 and the insertion rod 311 are inserted again based on the movement of the second wire block 31.

Further, the limiting assembly 4 can limit the main filter plate 21 to any position in the process that the filter holes on the main filter plate 21 and the filter holes on the auxiliary filter plate 22 are completely not overlapped to completely overlapped; specifically, a plurality of limiting gaps 40 are uniformly formed in the part between the two limiting gaps 40 on the main filter plate 21, so that the amount of foam entering the output pipe can be controlled by controlling the superposition degree of the filter holes on the main filter plate 21 and the filter holes on the auxiliary filter plate 22 according to the foam demand.

In a fourth embodiment of the present application, the filter plate 30 is disposed at a connection portion between the transition chamber 1 and the output pipe, a flow detector mechanism is disposed in the output pipe, a rupture filter plate 10 is further slidably disposed in the transition chamber 1, and a driving mechanism drives the rupture filter plate 10 to move in the transition chamber 1, a size of a filter hole on the rupture filter plate 10 is larger than a size of a filter hole on the filter plate 30, and a position of the filter hole on the rupture filter plate 10 is staggered with a position of the filter hole on the filter plate 30.

Specifically, the foam comes out of the foaming tank and enters the transition cavity 1, sequentially passes through the rupture filter plate 10 and the filter plate 30 in the transition cavity 1 and then enters the output pipe, the initial position of the rupture filter plate 10 is at the joint of the foaming tank and the transition cavity 1, at the moment, the distance between the rupture filter plate 10 and the filter plate 30 is farthest, the foam cannot be ruptured when passing through the rupture filter plate 10, the foam with the size which is mixed with each other is processed by the rupture filter plate 10, after passing through the filter plate 30, the foam with the size which is smooth passes through the filter holes on the filter plate 30 enters the output pipe, the foam with the size which cannot pass through the filter holes on the filter plate 30 is left in the transition cavity 1 and is positioned between the rupture filter plate 10 and the filter plate 30, along with the increase of the foam with the size, the filter holes on the filter plate 30 are inevitably blocked, the foam with the size which is difficult to pass through, the foam with the size which is small in the output pipe is reduced, the foam flow detecting mechanism (i.e. flow detector, which is not described in detail in the prior art) detects the decrease of the foam flow in the output pipe, and converts the decrease into an electrical signal to be transmitted to the driving mechanism, the driving mechanism drives the rupture filter plate 10 to move towards the direction close to the filter plate 30 based on the signal, after contacting with the large-size foam, the foam is ruptured to small-size foam so as to smoothly enter the output pipe through the filter holes on the filter plate 30, when the foam flow detecting mechanism detects that the foam flow in the output pipe is recovered to be normal, the electrical signal is converted again to be transmitted to the driving mechanism, then the driving mechanism drives the rupture filter plate 10 to return to the initial position based on the signal, wherein the driving mechanism can be a mechanism driving the rupture filter plate 10 to reciprocate in the transition cavity 1, such as a belt transmission assembly, a screw transmission assembly, etc., are all of the prior art, and are not described in detail herein.

Preferably, the driving mechanism comprises a first screw rod transmission assembly, a main electromagnet is arranged on a first screw block 11 of the first screw rod transmission assembly, an auxiliary electromagnet is arranged on the rupture filter plate 10, and the main electromagnet is vertically attracted with the auxiliary electromagnet; specifically, the first screw rod transmission assembly can drive the first screw block 11 to move back and forth along the axial direction on the outer wall of the transition cavity 1, so that the first screw block 11 can drive the rupture filter plate 10 to move back and forth in the axial direction inside the transition cavity 1 through the magnetic attraction effect between the main electromagnet and the auxiliary electromagnet, and the driving part can not occupy the inner space of the transition cavity 1 so as to avoid affecting the fluidity of foam in the transition cavity 1.

Further, the rupture filter plate 10 is slidably connected with the inner wall of the transition chamber 1 through an auxiliary frame 12, and the rupture filter plate 10 is vertically slidably arranged on the auxiliary frame 12, and the sliding direction of the rupture filter plate is the same as the magnetic attraction direction of the main electromagnet to the auxiliary electromagnet.

Specifically, when the magnetic force of the main electromagnet is increased and the magnetic force of the auxiliary electromagnet is unchanged, the magnetic attraction of the main electromagnet to the auxiliary electromagnet is increased, when the magnetic attraction between the main electromagnet and the auxiliary electromagnet reaches a certain value, the auxiliary electromagnet can drive the rupture filter plate 10 to vertically move upwards on the auxiliary frame 12, the gravity of the rupture filter plate 10 is overcome, the magnetic attraction is different, the upward movement distance of the rupture filter plate 10 is different, the magnetic force of the main electromagnet is alternately changed or irregularly changed in size in the process that the rupture filter plate 10 is close to the filter plate 30, the rupture filter plate 10 can vertically reciprocate on the auxiliary frame 12, so that the rupture filter plate 10 can form extrusion rupture effect on large-size foam with the filter plate 30 in the axial direction, and can also be frequently staggered in the radial direction, so as to form rubbing movement on the large-size foam, and improve the rupture efficiency of the foam.

In a fifth embodiment of the present application, the rupture filter plate 10 is provided with a plurality of first rupture needles 13, the first rupture needles 13 are movably inserted into the filter holes on the filter plate 30, and the edge of the filter plate 30 is elastically connected with the inner wall of the filter cavity in the radial direction.

Specifically, in the process of breaking the filter plate 10 to approach the filter plate 30, the magnetic force of the main electromagnet is alternately changed or irregularly changed, when the first breaking needles 13 do not contact the filter plate 30, the large-size foam can be pierced, when the first breaking needles 13 are about to contact the filter plate 30, the magnetic force of the main electromagnet is not changed any more, the first breaking needles 13 can be aligned with the filter holes on the filter plate 30, if a plurality of first breaking needles 13 are inserted into each filter hole on the filter plate 30, the large-size foam is pierced, the filter holes of the filter plate 30 can be penetrated, and because some foam is attached into the filter holes, the passage of other foam can be influenced, if the number of the first breaking needles 13 is smaller than the number of the filter holes, after the first breaking needles 13 are inserted into a few filter holes, the magnetic force of the main electromagnet on the auxiliary electromagnet can be alternately changed or irregularly changed, the first breaking needles 13 can drive the filter plate 30 to vertically move in the transition cavity 1, the probability of breaking the large-size foam can be increased, and the foam can be blocked out.

The first screw transmission assembly and the second screw transmission assembly are the same in structure.

While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.

Claims

1. The foam generating device comprises a foaming tank and an output pipe for outputting foaming foam in the foaming tank, and is characterized by further comprising a transition cavity for connecting the foaming tank and the output pipe, wherein a static filter assembly and a dynamic filter assembly are sequentially arranged in the transition cavity along the moving direction of the foam, and the size of a filter hole on the static filter assembly is larger than that of a filter hole on the dynamic filter assembly;

the static filter assembly is used for realizing the opening and closing of the filter holes based on the movement of the dynamic filter assembly, and the filter holes on the static filter assembly are gradually closed in the stroke of the dynamic filter assembly close to the static filter assembly;

the static filter assembly comprises a static frame body fixedly connected to the transition cavity, a main filter plate and an auxiliary filter plate are arranged at the part of the static frame body positioned in the transition cavity, the main filter plate is rotatably arranged on the static frame body, a first elastic piece is arranged between the main filter plate and the static frame body, the auxiliary filter plate and the static frame body are fixedly arranged, and a pull rope is connected between the main filter plate and the dynamic filter assembly; the movable filter assembly drives the main filter plate to rotate through a pull rope in the stroke away from the static frame body, and the filter holes on the main filter plate are gradually overlapped with the filter holes on the auxiliary filter plate;

the dynamic filtering assembly comprises a filtering plate which is arranged in the transition cavity in a sliding mode, and a driving piece which drives the filtering plate to move, wherein kinetic energy transmission is carried out between the driving piece and the filtering plate through magnetic force, and the stay cord is connected with the main filtering plate and the driving piece.

2. The foam generating device according to claim 1, wherein the filter holes on the main filter plate are divided into a plurality of groups which are arranged side by side in the circumferential direction, each group of filter holes is arranged side by side in the radial direction and the arc length is gradually longer, the arrangement of the adjacent two groups of filter holes is also arranged alternately in the radial direction, and the arrangement of the filter holes on the auxiliary filter plate is the same as the arrangement of the filter holes on the main filter plate.

3. The foam generating apparatus according to claim 2, wherein two arc edges of the filter hole on the side of the main filter plate facing the foaming tank are arranged in the axial direction.

4. The foam generating device according to claim 2, wherein two arc edges of the filter holes on the side of the auxiliary filter plate facing the output pipe are arranged in a high-low mode in the axial direction, when the filter holes on the main filter plate are completely staggered with the filter holes on the auxiliary filter plate, a plurality of foam puncturing needles are hinged to the positions, opposite to the filter holes on the auxiliary filter plate, on the main filter plate, a second elastic piece is arranged at the hinged positions of the main filter plate and the foam puncturing needles, and under the action of the second elastic piece, the foam puncturing needles always have a trend of being axially distributed.

5. The foam generating apparatus according to claim 1, wherein both axial ends of the filter plate are respectively provided with a scraper of a truncated cone structure, and the scraper scrapes down and transfers the foam adhered to the wall of the transition chamber to the filter hole portion of the filter plate in the moving stroke of the filter plate.

6. The foam generating device of claim 1, wherein the pull cord has elasticity and the stiffness coefficient of the first elastic member is greater than the stiffness coefficient of the pull cord.

7. The foam generating device according to claim 1, wherein the static frame is provided with a limiting assembly, the limiting assembly limits the position of the main filter plate after the filter holes on the main filter plate are completely overlapped with the filter holes on the auxiliary filter plate, the driving member is provided with a triggering member, and the triggering member contacts the limiting assembly in the travel of the filter plate approaching to the auxiliary filter plate, so that the limiting assembly is caused to lose the position limitation of the main filter plate.

8. The foam generating assembly of claim 7, wherein said spacing assembly is adapted to limit said primary filter plate to any position during a complete misalignment to a complete misalignment of said filter apertures on said primary filter plate and said filter apertures on said secondary filter plate.