Novel mixing base

Abstract

The utility model discloses a novel mixing base which comprises a left base block and a right base block, the left base block is provided with a first feeding runner, a left half mixing cavity and a left half discharging runner, the right base block is provided with a second feeding runner, a right half mixing cavity and a right half discharging runner, and the left base block and the right base block are mutually buckled. And locking and fixing are carried out through screw and screw hole structures, so that the left half mixing cavity and the right half mixing cavity are matched to form a mixing cavity, and the left half discharging runner and the right half discharging runner are matched to form a discharging runner. The double-component material mixing device is applied to the double-component material mixing device, not only can be well matched with a material mixing stirrer to mix double-component materials, but also adopts a split structure and a half-and-half cavity structure, and can be half-and-half disassembled along the center line of the cavity to be cleaned when necessary, so that the situation that the double-component material mixing device is stuck and scrapped is prevented.

Description

Technical Field

[0001] The utility model relates to a mixing base, in particular to a novel mixing base applied to a two-component material mixing device. Background Art

[0002] When the two-component foaming and forming foam material is undergoing the foaming and forming process, it involves mixing the materials of components A and B and then injecting them into a specific foaming and forming container. For example, for bio-based polyurethane (PU) foamed sponge, it involves component A of bio-based polyurethane material (PU), and component B of polyurethane material (MDI) synthesized from isocyanate, polyol and their compounding auxiliaries. After the two components are mixed, they are injected into a specific foaming and forming container for foaming and forming.

[0003] The current two-component material mixing device simply adopts the structure of a mixing chamber, that is, a mixing chamber is formed through an outer jacket base. Two feeding ports are opened at the rear end of the mixing chamber body, and one discharging port is opened at the front end. The two feeding ports are respectively connected to the high-pressure feeding pipelines of materials A and B. After the high-pressure materials A and B enter the mixing chamber for mixing, they are then injected into a specific foaming container through the discharging port.

[0004] Since the process of forming bio-based polyurethane foamed sponge products has the following characteristics: the mixed material has a certain viscosity, and its foaming and forming time is extremely fast, generally starting to foam and form in 10 seconds. Therefore, the current structure of the mixing chamber mainly has the following two deficiencies: First, the mixing is uneven; only relying on the high-pressure entry of materials A and B into the mixing chamber for mixing, without processes such as stirring, it is easy to cause uneven mixing. Second, after one injection of material for foaming, the remaining material is very easy to adhere to the chamber wall, corners, gaps, etc. of the mixing device, forming blockages; for this reason, it is necessary to clean the mixing chamber body manually with specific chemical solvents after each mixing, injection and foaming. Each time a shot is injected, it needs to be cleaned once, which is very time-consuming and laborious.

[0005] Therefore, a two-component material mixing device with a mixing function of a stirrer has been developed, and the mixing base is one of the core components of this two-component material mixing device. It is necessary to carry out systematic and scientific improvement design on its structure to ensure that it can be well applied to the two-component material mixing device. Summary of the Utility Model

[0006] Aiming at the above deficiencies, the purpose of the present utility model is to provide a novel mixing base, which is applied to a two-component material mixing device. It can not only cooperate well with a mixing stirrer for mixing two-component materials, but also adopts a split structure and a semi-type cavity structure, and can be split in half along the center line of the cavity when necessary for cleaning, preventing the situation of jamming and scrapping.

[0007] The technical solution adopted by the utility model is: a novel mixing base, comprising a left base block and a right base block, the left base block is provided with a first feed flow channel, a left half mixing chamber and a left half discharge flow channel, the right base block is provided with a second feed flow channel, a right half mixing chamber and a right half discharge flow channel, the left base block and the right base block are buckled with each other and locked and fixed by a screw hole structure, so that the left half mixing chamber and the right half mixing chamber cooperate to form a mixing chamber, and the left half discharge flow channel and the right half discharge flow channel cooperate to form a discharge flow channel.

[0008] Furthermore, the mixing chamber and the discharge channel are circular straight-through structures with the same inner diameter.

[0009] Furthermore, the feed ports of the first feed channel and the second feed channel are respectively arranged on the upper sides of the left and right base blocks, wherein the first feed channel extends from top to bottom and then obliquely from the back to the front, and enters the mixing chamber from the left side, and the second feed channel extends from top to bottom and then obliquely from the back to the front, and enters the mixing chamber from the right side, thereby forming two streams of material between the first feed channel and the second feed channel, which tend to discharge obliquely forward and collide with each other.

[0010] Furthermore, the first feed channel and the second feed channel are respectively provided with a first feed piston switch and a second feed piston switch; the first feed piston switch is arranged on the left side of the mixing base and corresponds to the first feed channel, and includes a first feed piston, a first feed piston driving cylinder, and a first feed piston transition block; the second feed piston switch is arranged on the right side of the mixing base and corresponds to the second feed channel, and includes a second feed piston, a second feed piston driving cylinder, and a second feed piston transition block.

[0011] The utility model has the following advantages: the reason why the mixing base adopts a half-and-half combined structure is to prevent it from getting stuck and becoming scrapped. Although the two-component material mixing device realizes the functions of automatically scraping and cleaning the residual materials and rotating and shaking them clean, under special circumstances, such as sudden power failure, the residual materials solidify and harden, and it is very likely to form a very hard blockage directly in the mixing chamber, completely jamming the mixing agitator. At this time, if the mixing base is an integrated structure, it cannot be pried open, and it cannot be disassembled and cleaned, so it can only be scrapped. However, by adopting a half-and-half combined structure, the hardened and blocked residual materials can be disassembled and processed when necessary, so that the mixing base can be used again, which is more scientific and reasonable.

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the two-component material mixing device is shown in FIG.Figure 1 ;

[0014] Figure 2 It is a schematic explosion structure diagram of a two-component material mixing device;

[0015] Figure 3 It is a schematic overall structure diagram of a two-component material mixing device Figure 2 ;

[0016] Figure 4 It is Figure 3 A schematic structure diagram after hiding the right base block and the second feed piston switch;

[0017] Figure 5 It is Figure 4 A schematic structure diagram after hiding the bushing;

[0018] Figure 6 It is a schematic cooperation structure diagram of the mixing base, the rotating connecting rod shaft, the first and second feed piston switches Figure 1 ;

[0019] Figure 7 It is a schematic cooperation structure diagram of the mixing base, the rotating connecting rod shaft, the first and second feed piston switches Figure 2 ;

[0020] Figure 8 It is a schematic cooperation structure diagram of the mixing base and the mixing agitator Figure 1 ;

[0021] Figure 9 It is a schematic cooperation structure diagram of the mixing base and the mixing agitator Figure 2 ;

[0022] Figure 10 It is a schematic mechanism diagram of the mixing agitator Figure 1 ;

[0023] Figure 11 It is a schematic mechanism diagram of the mixing agitator Figure 2 ;

[0024] Figure 12 It is a schematic structure diagram of the left base block;

[0025] Figure 13 It is a schematic structure diagram of the right base block;

[0026] Figure 14 It is a schematic cooperation structure diagram of the first feed piston switch and the left base block;

[0027] In the figure: mixing base 1; left base block 1a; right base block 1b; mixing chamber 11; left half mixing chamber 11a; right half mixing chamber 11b; first feed channel 12; second feed channel 13; discharge channel 14; left half discharge channel 14a; right half discharge channel 14b; mixing agitator 2; propeller-shaped mixing structure 21; first circle of propellers 211; propeller blades 2111; flow-through space 2112; blade edge part 2113; blade width part 2114; second circle of propellers 212; first circle of impact protrusions 213; impact protrusion 2131; third circle of propellers 214; second circle of impact protrusions 215; smooth connecting rod structure 22; circular bottom block 23; agitator rotation drive assembly 3; agitator telescopic drive assembly 4; telescopic mounting base 41; telescopic drive slide rail 42; telescopic drive slider 43; telescopic drive motor 44; rotation mounting bracket 31; rotation link shaft 32; rotation drive motor 33; shaft sleeve 34; first feed piston switch 5; first feed piston 51; first feed piston drive cylinder 52; first feed piston transition block 53; second feed piston switch 6; second feed piston 61; second feed piston drive cylinder 62; second feed piston transition block 63. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0030] In addition, if the embodiments of the present utility model involve descriptions such as "first" or "second", etc., such descriptions of "first" or "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] See Figures 6 - 8 As shown in FIGS. 12 - 14, the novel mixing base provided in this embodiment includes a left base block 1a and a right base block 1b. The left base block 1a is provided with a first feed channel 12, a left half - mixing cavity 11a, and a left half - discharge channel 14a. The right base block 1b is provided with a second feed channel 13, a right half - mixing cavity 11b, and a right half - discharge channel 14b. The left base block 1a and the right base block 1b are buckled with each other and are locked and fixed through a screw - hole structure, so that the left half - mixing cavity 11a and the right half - mixing cavity 11b cooperate to form a mixing cavity 11, and the left half - discharge channel 14a and the right half - discharge channel 14b cooperate to form a discharge channel 14.

[0032] Specifically, the mixing cavity 11 and the discharge channel 14 are circular straight - through structures with the same inner diameter size.

[0033] Specifically, the inlets of the first feed channel 12 and the second feed channel 13 are respectively arranged on the upper side surfaces of the left and right base blocks 1a and 1b. Among them, the first feed channel 12 extends from top to bottom and then obliquely forward from back to left and enters the mixing cavity 11 from the left side. The second feed channel 13 extends from top to bottom and then obliquely forward from back to right and enters the mixing cavity 11 from the right side, so that there is a tendency for two streams of materials to discharge obliquely forward and collide with each other between the first feed channel 12 and the second feed channel 13.

[0034] Specifically, the first feed channel 12 and the second feed channel 13 are respectively provided with a first feed piston switch 5 and a second feed piston switch 6. The first feed piston switch 5 is arranged on the left side of the mixing base and corresponds to the first feed channel 12, and it includes a first feed piston 51, a first feed piston driving cylinder 52, and a first feed piston transition block 53. The second feed piston switch 6 is arranged on the right side of the mixing base and corresponds to the second feed channel 13, and it includes a second feed piston 61, a second feed piston driving cylinder 62, and a second feed piston transition block 63.

[0035] Next, the specific application of the two-component material mixing device and the novel mixing base in the two-component material mixing device is mainly described.

[0036] See also Figures 1 to 14 The two-component material mixing device provided in this embodiment includes a mixing base 1, wherein the mixing base 1 is provided with a mixing chamber 11, wherein the left and right sides of the mixing chamber 11 are respectively provided with a first feed channel 12 and a second feed channel 13, and the front side of the mixing chamber 11 is provided with a discharge channel 14; since the mixing chamber and the discharge channel in this embodiment adopt a circular straight-through structure with the same inner diameter, the numbers of the mixing chamber and the discharge channel in the drawings point to the same straight-through chamber;

[0037] The mixing device also includes a mixing agitator 2, which is arranged in the mixing chamber 11 and is adapted to the discharge channel 14, and can be extended and retracted along the axial direction of the discharge channel 14; a propeller-shaped mixing structure 21 is arranged on the body of the mixing agitator 2, and the outer diameter of the propeller mixing structure 21 is adapted to the inner diameter of the discharge channel 14, so that the mixing agitator 2 can scrape off the residual material in the discharge channel 14 when performing the extension and retraction action;

[0038] It also includes a stirrer rotation drive assembly 3, the stirrer rotation drive assembly 2 corresponds to the mixing stirrer 2, and drives the mixing stirrer 2 to rotate;

[0039] It also includes a stirrer telescopic drive component 4, which corresponds to the mixing stirrer 2 and drives the mixing stirrer 2 to perform telescopic movements.

[0040] By providing a mixing agitator 2 with a propeller-shaped mixing structure 21, and coordinating with a mixing agitator rotation drive component 3 and a mixing agitator telescopic drive component 4, the mixing agitator 2 can be rotated and can be axially telescopic along the mixing chamber 11 and the discharge channel 14, thereby improving the uniformity of the mixing of the two-component materials on the basis of ensuring the smoothness of the injection, and can automatically scrape and clean the residual materials and rotate and shake them clean after the injection is completed, thereby improving the efficiency and quality of the mixing and injection of the two-component materials. The core function of the mixing agitator 2 is to scrape and shake off the residual materials, and then to improve the uniformity of the mixing of the two-component materials.

[0041] Specifically, the mixing chamber 11 and the discharge channel 14 are circular straight-through structures with the same inner diameter, so that when the mixing agitator 2 performs telescopic movement, the residual materials in the mixing chamber 11 and the discharge channel 14 can be scraped off simultaneously, thus cleaning more thoroughly. It should be noted here that the mixing chamber 11 and the discharge channel 14 adopt a circular-channel straight-through structure, and the mixing chamber 11 and the discharge channel 14 can be regarded as an integral structure with only one overall cavity. This overall cavity is the "mixing and discharging channel", which serves as both a mixing chamber and a discharge channel, with a dual function in one cavity. In this way, not only can material jamming or excessive residual waste be avoided, but it is also more convenient to clean thoroughly later.

[0042] Specifically, refer to Figure 9 , 10 , 11, the rear section of the mixing agitator body is a smooth connecting rod structure 22, and the front section is a propeller-shaped mixing structure 21. Among them, a circular bottom block 23 is provided at the rear end of the smooth connecting rod structure, and the diameter of the circular bottom block 23 is adapted to the diameters of the mixing chamber 11 and the discharge channel 14. The propeller-shaped mixing structure 21 includes a first circle of propellers 211 and a second circle of propellers 212. Between the first circle of propellers 211 and the second circle of propellers 212, a first circle of impact convex columns 213 is further provided. More specifically, the first circle of propellers 211 and the second circle of propellers 212 each include more than three propeller blades 2111. The first circle of impact convex columns 213 includes more than three impact convex columns 2131, and the impact convex columns 2131 correspond to the flow-through space 2112 formed between two adjacent propeller blades 2111, so that the material passing through the flow-through space 2112 between two adjacent propeller blades 2111 will impact on the impact convex columns 2131. Among them, the inner side of the propeller blade 2111 along the axial direction of the mixing agitator is the blade edge part 2113, and the outer side is the blade width part 2114. There is a streamline change between the blade edge part 2113 and the blade width part 2114, so that the flow-through space 2112 formed between two adjacent propeller blades 2111 has a streamline change trend of gradually narrowing from wide to narrow.

[0043] The reason why the mixing agitator 2 adopts the propeller-shaped mixing structure 21 and a first circle of impact convex columns 213 is also provided between the first circle of propellers 211 and the second circle of propellers 212. In this way, two high-pressure materials collide with each other to form a preliminary mixture. When the mixing agitator 2 rotates, the propeller blades cause further mixing of the materials. Moreover, the impact convex columns correspond to the flow-through space formed between two adjacent propeller blades, so that the high-pressure material passing through the flow-through space between two adjacent propeller blades will impact on the impact convex columns, causing further mixing of the materials. In this way, it progresses layer by layer along the axial direction of the mixing chamber and the discharge channel, while ensuring smooth discharge, the two materials are mixed evenly step by step.

[0044] It should be noted here that the propeller blades of the propeller-shaped mixing structure 21 do not limit the specific shape of the blades. However, as shown in the appendix Figure 10 , 11 , a very preferred propeller blade structure is adopted in this embodiment. Whether it is the propeller blade 2111 of the first ring propeller 211 or the second ring propeller 212, the inner side along the axial direction of the mixing agitator is the blade edge part 2113, and the outer side is the blade width part 2114, so that the flow space 2112 formed between adjacent two propeller blades has a tendency to gradually become narrower from wide. The blade edge part 2113 is like a blade, which has the functions of cutting and avoiding blocking. The flow space 2112 that gradually becomes narrower from wide has the functions of extrusion mixing and increasing the flow rate, and enables the material to finally hit the impact boss more accurately. The whole structure is very scientific and reasonable, ensuring smoothness while maximizing the mixing uniformity and avoiding the possibility of material residue.

[0045] It is also necessary to emphasize the function of the circular bottom block 23 at the rear end of the mixing agitator 2 here. Because it is arranged at the rear end of the mixing agitator 2 and its diameter is adapted to the diameters of the mixing cavity 11 and the discharge channel 14, it can play a role in completely scraping out the residual material in the cavity. That is to say, where the propeller mixing structure 21 of the mixing agitator 2 cannot scrape clean, the circular bottom block 23 can be used as a supplementary and backup insurance to completely scrape clean the residual material in the mixing cavity and the discharge channel. Of course, for the specific design of the circular bottom block 23, considering that in addition to the forward pushing action of the mixing agitator 2, there is also a retracting action, in order to avoid forming a relatively sealed space between the circular bottom block and the bottom of the mixing cavity, because the compression or release of the air in this sealed space affects the retracting or pushing action of the mixing agitator, therefore, a notch can be provided at the edge position of the circular bottom block (the notch is a symmetrical notch on the same straight line of the circular bottom block, which can ensure the uniformity of force). Of course, the notch should be as small as possible to avoid forming a relatively sealed space between the circular bottom block and the bottom of the mixing cavity.

[0046] Specifically, the propeller-shaped mixing structure 21 includes a third ring propeller 214, and a second ring impact boss 215 is also provided between the third ring propeller 214 and the second ring propeller 212. In theory, the propeller-shaped mixing structure can also include fourth and fifth ring propellers, and so on, which are selectively set according to the model size of the two-component material mixing device.

[0047] Specifically, the telescopic drive assembly 4 of the agitator includes a telescopic mounting base 41, a telescopic drive slide rail 42, a telescopic drive slider 43, and a telescopic drive motor 44. The telescopic drive motor 44 and the telescopic drive slide rail 42 are arranged on the telescopic mounting base 41. The telescopic drive slider 43 is arranged on the telescopic drive slide rail 42. The telescopic drive motor 44 is connected to the telescopic drive slider 43 to drive the telescopic drive slider 43 to slide back and forth on the telescopic drive slide rail 42. The rotary drive assembly 3 of the agitator includes a rotary mounting bracket 31, a rotary connecting rod shaft 32, and a rotary drive motor 33. The rotary connecting rod shaft 32 is connected to the mixing agitator 2. The rotary drive motor 33 drives the mixing agitator 2 to perform a rotary motion through the rotary connecting rod shaft 32. Among them, the rotary drive assembly 3 of the agitator is arranged on the telescopic drive slider 43 of the telescopic drive assembly 4 of the agitator through its rotary mounting bracket 31.

[0048] In this way, the rotary drive assembly 3 of the agitator can drive the mixing agitator 2 to perform a rotary motion through the cooperation of the rotary drive motor 33 and the rotary connecting rod shaft 32. At the same time, the telescopic drive motor 44 and the telescopic drive slider 43 cooperate to drive the rotary drive assembly 3 of the agitator to move back and forth, thereby realizing driving the mixing agitator 2 to perform a telescopic motion.

[0049] It should be noted here that the telescopic drive assembly 4 of the agitator can also adopt a driving method such as a rotary cylinder. It can also include supporting components such as bearings and sensors. After all, the rotary connecting rod shaft needs to rotate. It is necessary to reduce friction, ensure the smoothness of its rotation, and detect its rotation speed, etc. These are all conventional technologies in this field and will not be elaborated here.

[0050] In addition, regarding the connection between the rotary connecting rod shaft 32 and the mixing agitator 2, another issue to be considered is the sealing performance. Based on this, the shaft sleeve structure is designed in this embodiment. The shaft sleeve 34 is provided with a connecting rod shaft hole, and the length of the connecting rod shaft hole can be designed to be relatively long. The rotary connecting rod shaft 32 passes through the connecting rod shaft hole of the shaft sleeve 34 and enters the mixing chamber 11 to be connected to the mixing agitator 2. With the cooperation of the rotary connecting rod shaft 32 and the connecting rod shaft hole of the shaft sleeve, a good sealing effect can be achieved. Generally speaking, the rotary connecting rod shaft 32 passes through the connecting rod shaft hole of the shaft sleeve 34 and then is connected to the mixing agitator 2 to drive the mixing agitator 2 to rotate. The shaft sleeve 34 itself does not rotate and only follows the telescopic movement. Of course, because the shaft sleeve needs to perform a telescopic movement, a sliding sealing measure is also required between the shaft sleeve and the mixing chamber 11, such as a sealing ring.

[0051] It should be noted here that the rotary drive assembly of the agitator can also adopt a driving method such as a telescopic cylinder. It can also include supporting components such as a motor base and a displacement sensor. These are all conventional technologies in this field and will not be elaborated here.

[0052] Specifically, referring to Figure 12 and 13 Figure 14, the inlets of the first feed channel 12 and the second feed channel 13 are respectively arranged at the left and right parts of the upper side of the mixing base 1. Among them, the first feed channel 12 extends from top to bottom, and then obliquely forward from back, and enters the mixing chamber 11 from the left side. The second feed channel 13 extends from top to bottom, and then obliquely forward from back, and enters the mixing chamber 11 from the right side, so that there is a tendency for two streams of materials to discharge obliquely forward and collide with each other between the first feed channel 12 and the second feed channel 13.

[0053] Generally speaking, for the first feed channel on the left, when the high-pressure component A material enters the mixing chamber along it, it is obliquely right in front. For the second feed channel on the right, when the high-pressure component B material enters the mixing chamber along it, it is obliquely left in front. The two streams of materials exactly correspond to each other, having a tendency to collide and also a tendency to move forward, which is very scientific and reasonable. As the materials move forward, they will pass through the propeller-shaped mixing structure of the mixing agitator to be further mixed evenly.

[0054] In this way, it ensures the uniformity of the collision and mixing of the materials, and also ensures the smoothness of the injection and discharge of the materials after mixing by the discharge channel, avoiding the situation of material jamming.

[0055] Specifically, referring to Figure 2 and 6 Figures 7 and 14, the first feed channel 12 and the second feed channel 13 are respectively provided with a first feed piston switch 5 and a second feed piston switch 6; the first feed piston switch 5 is arranged on the left side of the mixing base 1 and corresponds to the first feed channel 12, and it includes a first feed piston 51, a first feed piston driving cylinder 52, and a first feed piston transition block 53; the second feed piston switch 6 is arranged on the right side of the mixing base 1 and corresponds to the second feed channel 13, and it includes a second feed piston 61, a second feed piston driving cylinder 62, and a second feed piston transition block 63. It can be used to adjust the feed flow rate and pressure of the first feed channel 12 and the second feed channel 13 in real time.

[0056] It should be noted here that in order to correspondingly arrange the first feed piston 51 and the second feed piston 61, the first feed channel 12 and the second feed channel 13 on the mixing base 1 must be respectively provided with piston accommodation slot holes corresponding to and adapted to the first feed piston 51 and the second feed piston 61. The piston accommodation slot holes are communicated with the feed channels. In this way, the expansion and contraction of the feed piston can cooperate with the piston accommodation slot holes to play a switching role and also a role in adjusting the flow rate. For example, when the feed piston extends forward to the bottom, the feed channel is completely closed. When it retracts to the bottom, the feed channel is completely opened. When it extends a certain distance, the feed channel is opened halfway.

[0057] Specifically, see Figure 12 , 13 , 14, the mixing base 1 includes a left base block 1a and a right base block 1b, the left base block 1a is provided with a first feed channel 12, a left half mixing chamber 11a and a left half discharge channel 14a, the right base block 1b is provided with a second feed channel 13, a right half mixing chamber 11b and a right half discharge channel 14b, the left base block 1a and the right base block 1b are buckled with each other and locked and fixed by a screw hole structure, so that the left half mixing chamber 11a and the right half mixing chamber 11b cooperate to form the mixing chamber 11, and the left half discharge channel 14a and the right half discharge channel 14b cooperate to form the discharge channel 14.

[0058] The reason why the mixing base adopts a half-and-half structure is to prevent it from getting stuck and becoming scrapped. Although the two-component material mixing device can automatically scrape and clean the residual materials and rotate and shake them clean, under special circumstances, such as sudden power outages, the residual materials will solidify and harden, and it is very likely to form a very hard blockage directly in the mixing chamber, completely blocking the mixing agitator. At this time, if the mixing base is an integrated structure, it cannot be pried open, and it cannot be disassembled for cleaning, so it can only be scrapped. With a half-and-half structure, the hardened and blocked residual materials can be disassembled and processed when necessary, so that the mixing base can be used again, which is more scientific and reasonable.

[0059] Attached photos Figure 14 The matching structure between the first feed piston switch 5 and the left base block 1a is shown; similarly, the matching structure between the second feed piston switch 6 and the right base block 1b is symmetrical thereto.

[0060] The utility model also comprises a mixing base, and the mixing base is locked and fixed on the mixing base through a screw hole structure.

[0061] The two-component material mixing injection method using the device comprises the following steps:

[0062] 1) The first component material enters the mixing chamber from the first feed flow channel through the pressure delivery pipeline, and at the same time, the second component material enters the mixing chamber from the second feed flow channel through the pressure delivery pipeline. The two streams of materials meet each other and collide with each other to mix with the cooperation of the mixing agitator, and are ejected along the discharge flow channel under the action of pressure to achieve the mixed injection of the two-component materials; wherein, during the mixed injection of the two-component materials, the mixing agitator can be selected to rotate or not rotate;

[0063] 2) After one-time mixing and injection of two-component materials, the first feed channel and the second feed channel stop feeding; the telescopic drive assembly of the agitator drives the mixing agitator to extend forward along the axial direction of the mixing chamber and the discharge channel, so as to scrape off the residual materials; the rotary drive assembly of the agitator drives the mixing agitator to rotate to shake off the residual materials on the mixing agitator; the telescopic drive assembly of the agitator drives the mixing agitator to retract backward along the axial direction of the mixing chamber and the discharge channel; the process of the mixing agitator extending and scraping residual materials and rotating and shaking off residual materials is selectively carried out once or repeatedly to ensure that the residual materials are cleaned up for the next mixing and injection of two-component materials.

[0064] After the two-component materials are mixed, once they come into contact with air, the time for foaming and molding is extremely fast, generally starting to foam and mold in 10 seconds; therefore, after each mixing and injection of two-component materials, it is necessary to clean up the residual materials. If the injection time is relatively long, such as more than 10 seconds, then it is necessary to repeat the operation and clean it back and forth several times to ensure complete cleaning. After all, every time the mixing agitator extends and retracts, it has a cleaning effect. In addition, the degree of telescopic movement of the mixing agitator also has some requirements. When extending, it should be fully extended, and when retracting, it can retract a little more distance to clean (scrape) more cleanly.

[0065] The present utility model is not limited to the above embodiments. Any other two-component material mixing device obtained by adopting the same or similar technical features as those of the above embodiments of the present utility model falls within the protection scope of the present utility model.

Claims

1. A new type of mixing base, characterized by: It includes a left base block and a right base block, the left base block is provided with a first feed channel, a left half mixing chamber and a left half discharge channel, the right base block is provided with a second feed channel, a right half mixing chamber and a right half discharge channel, the left base block and the right base block are interlocked with each other and locked and fixed by a screw hole structure, so that the left half mixing chamber and the right half mixing chamber cooperate to form a mixing chamber, and the left half discharge channel and the right half discharge channel cooperate to form a discharge channel.

2. The novel mixing base according to claim 1 is characterized in that: The mixing chamber and the discharge channel are circular straight-through structures with the same inner diameter.

3. The novel mixing base according to claim 2 is characterized in that: The feed ports of the first feed channel and the second feed channel are respectively arranged on the upper side surfaces of the left and right base blocks, wherein the first feed channel extends from top to bottom and then obliquely from the back to the front, and enters the mixing chamber from the left side, and the second feed channel extends from top to bottom and then obliquely from the back to the front, and enters the mixing chamber from the right side, thereby forming two streams of material between the first feed channel and the second feed channel, which tend to discharge obliquely forward and collide with each other.

4. The novel mixing base according to claim 3 is characterized in that: The first feed channel and the second feed channel are respectively provided with a first feed piston switch and a second feed piston switch; the first feed piston switch is arranged on the left side of the mixing base and corresponds to the first feed channel, and includes a first feed piston, a first feed piston driving cylinder, and a first feed piston transition block; the second feed piston switch is arranged on the right side of the mixing base and corresponds to the second feed channel, and includes a second feed piston, a second feed piston driving cylinder, and a second feed piston transition block.

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