Liquid silicone rubber mixer

Abstract

The application discloses a liquid silicone rubber mixer, which comprises a shell, a liquid silicone rubber inlet arranged on one side of the shell, and a liquid silicone rubber outlet arranged at the bottom of the shell; a first turbine assembly is arranged between the liquid silicone rubber inlet and the liquid silicone rubber outlet; the first turbine assembly comprises a first supporting plate arranged at one end of the shell and a second supporting plate arranged at the other end of the shell; a first turbine is arranged between the first supporting plate and the second supporting plate; the first turbine rotates between the first supporting plate and the second supporting plate; the first supporting plate and the second supporting plate are both provided with a plurality of first through holes in communication with the first turbine; the liquid silicone rubber flows into the first turbine from the first through holes of the first supporting plate, is stirred and rotated, and then flows out from the first through holes of the second supporting plate; the mixer provided by the application has a small volume; the mixing of the liquid silicone rubber is driven by the mixing of the liquid silicone rubber feeding machine pump pressure; and the liquid silicone rubber is stirred and mixed for multiple times, so that the mixing degree is high.

Description

Technical Field

[0001] This invention relates to the field of liquid silicone mixing technology, and particularly to a liquid silicone mixer. Background Technology

[0002] Two-component liquid silicone has advantages such as being environmentally friendly, easy to mold, biocompatible, and low-cost, and is widely used in children's toys, food molds, and human implants. Two-component liquid silicone requires the uniform mixing of components A and B; therefore, it is often necessary to mix components A and B during the silicone manufacturing process, and silicone mixers are commonly used. The silicone mixer is mainly used for mixing two-component liquid silicone, that is, to fully stir and mix components A and B. Of course, it can also be used to mix other multi-component silicone evenly, such as three-component, four-component, etc.

[0003] However, existing silicone mixers generally use external motors for driving and stirring, which occupy a large volume. A search revealed a raw material mixing device for liquid silicone processing, with announcement number CN214863170U, which describes the currently used raw material mixing devices for liquid silicone processing. Most of these devices use stirring to mix liquid silicone raw materials, which requires a long stirring time and results in a low degree of mixing. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as large volume and low mixing degree, and to provide a liquid silica gel mixer that is small in size. The mixing of liquid silica gel is driven by the pump pressure of the liquid silica gel feeder, without the need for an additional power drive system. Multi-stage and multiple mixing results in a high degree of mixing of liquid silica gel components A and B and color paste.

[0005] To achieve the above objectives, the present invention provides a liquid silica gel mixer, comprising a housing, a liquid silica gel inlet on one side of the housing, and a liquid silica gel outlet at the bottom; a first turbine assembly is installed between the liquid silica gel inlet and the liquid silica gel outlet, the first turbine assembly comprising a first support plate installed at one end inside the housing and a second support plate installed at the other end inside the housing; a first turbine is installed between the first support plate and the second support plate, the first turbine rotating between the first support plate and the second support plate, both the first support plate and the second support plate having a plurality of first through holes communicating with the first turbine, the liquid silica gel flowing into the first turbine from the first through holes of the first support plate and rotating and stirring, and flowing out from the first through holes of the second support plate.

[0006] Preferably, the first turbine assembly further includes a first turbine housing installed outside the first turbine, with a first support plate installed at one end and a second support plate installed at the other end.

[0007] Preferably, a second turbine assembly is installed below the first turbine assembly, and the first and second turbine assemblies are spliced ​​together; the second turbine assembly includes a second turbine housing that is inserted into the first turbine housing, and a fourth sealing ring is installed between the first and second turbine housings; a third support plate that abuts against the second support plate is installed at one end of the second turbine housing, and a fourth support plate is installed at the other end; a second turbine is installed between the third and fourth support plates, and the second turbine rotates between the third and fourth support plates; both the third and fourth support plates are provided with a plurality of second through holes communicating with the second turbine, and the second through holes are connected to the first through holes.

[0008] Preferably, the first support plate, the second support plate, the third support plate and the fourth support plate are all provided with a center point in the middle, and the second turbine and the first turbine are provided with center point holes at both ends that cooperate with the center point. The center point is inserted into the center point hole to support the first turbine or the second turbine.

[0009] Preferably, the surfaces of the second turbine and the first turbine are provided with a plurality of inclined stirring blades, the stirring blades being spaced apart, and the stirring blades also having an annular groove in the middle, the liquid silica gel being held and stirred in the annular groove.

[0010] Preferably, the stirring blades of the second turbine and the stirring blades of the first turbine are tilted in opposite directions.

[0011] Preferably, a cooling medium flow channel is provided between the housing, the first turbine housing, and the second turbine housing. A cooling medium inlet is opened on one side of the housing, and a cooling medium outlet is opened on the other side. The cooling medium flows along the cooling medium flow channel to cool the first turbine housing and the second turbine housing.

[0012] Preferably, the housing includes an upper housing mounted on the upper part and a lower housing mounted on one side of the upper housing. The upper housing and the lower housing are fixedly connected by bolts, and an accommodating cavity is formed inside to accommodate the first turbine housing and the second turbine housing.

[0013] Preferably, a first sealing ring is installed between the upper housing and the lower housing, a second sealing ring is installed between the upper housing and the first turbine housing, and a third sealing ring is installed between the lower housing and the second turbine housing.

[0014] Preferably, the top of the housing is provided with an exhaust hole, and an exhaust ball and an exhaust bolt for adjusting the position of the exhaust ball are installed above the exhaust hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The liquid silica gel of the present invention has a certain pressure when injected, and drives the first turbine to rotate through its own pressure. Specifically, the mixing is driven by the pump pressure of the liquid silica gel feeder, so as to achieve stirring and mixing, thereby eliminating the need for an additional power drive system and reducing its volume.

[0017] 2. The two-component liquid silica gel of the present invention is injected from the liquid silica gel inlet; flows into the upper surface of the first support plate, and flows into the first turbine through the first through hole on the first support plate. The first turbine is driven to rotate by the pressure of the liquid silica gel itself, thereby stirring the two-component liquid silica gel. The stirred two-component liquid silica gel reaches the second support plate at the end of the first turbine and flows out from the first through hole of the second support plate to the liquid silica gel outlet, thus completing the stirring and mixing.

[0018] 3. The housing of this invention is equipped with a first turbine assembly and a second turbine assembly, which are spliced ​​together. The two-component liquid silica gel is stirred by the first turbine and then directly enters the second turbine, where it continues to be stirred in the opposite direction, thereby achieving multi-stage and multiple stirring. This results in a high degree of mixing of components A and B of the liquid silica gel. Color paste can even be added for stirring to mix all three components together. Furthermore, if a higher degree of stirring is required, more turbine assemblies can be spliced ​​together. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a liquid silica gel mixer provided by the present invention;

[0021] Figure 2 This is a cross-sectional schematic diagram of a liquid silica gel mixer provided by the present invention;

[0022] Figure 3 This is an exploded view of a liquid silica gel mixer provided by the present invention;

[0023] Figure 4 This is an exploded view of the first turbine assembly and the second turbine assembly provided by the present invention.

[0024] The diagram includes:

[0025] 1. Shell; 2. Liquid silica gel inlet; 3. Liquid silica gel outlet; 4. First turbine assembly; 41. First support plate; 42. Second support plate; 43. First turbine; 44. First through hole; 45. First turbine shell; 5. Cooling medium flow channel; 51. Cooling medium inlet; 52. Cooling medium outlet; 11. Upper shell; 12. Lower shell; 13. Accommodating cavity; 14. First sealing ring; 15. Second sealing ring; 16. Third sealing ring; 17. Exhaust hole; 18. Exhaust ball; 19. Exhaust bolt; 8. Second turbine assembly; 81. Second turbine shell; 82. Fourth sealing ring; 83. Third support plate; 84. Fourth support plate; 85. Second turbine; 86. Second through hole; 411. Center point; 431. Center point hole; 46. Stirring blade; 47. Annular groove. Detailed Implementation

[0026] The technical solution of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please refer to Figures 1 to 4 This embodiment provides a liquid silica gel mixer consisting only of the first turbine assembly 4.

[0029] Specifically, such as Figure 1 As shown, the mixer includes a housing 1, which includes an upper housing 11 mounted on the upper part and a lower housing 12 mounted on one side of the upper housing 11. The upper housing 11 and the lower housing 12 are fixedly connected by four bolts on one side of the lower housing 12. An accommodating cavity 13 is formed inside to accommodate the first turbine assembly 4 and the second turbine assembly 8. In this embodiment, the accommodating cavity 13 may only contain the first turbine assembly 4. In other embodiments, the accommodating cavity 13 is longer and larger, and can accommodate the first turbine assembly 4, the second turbine assembly 8, or even more turbine assemblies.

[0030] like Figure 1As shown, the housing 1 has a liquid silicone inlet 2 on one side and a liquid silicone outlet 3 at the bottom; a first turbine assembly 4 is installed between the liquid silicone inlet 2 and the liquid silicone outlet 3. In this embodiment, the liquid silicone has a certain pressure when injected into the liquid silicone inlet 2; specifically, the liquid silicone is extruded or pumped out by a liquid silicone feeder, and has a certain pressure when output; the first turbine 43 in the first turbine assembly 4 is driven to rotate by its own pressure to achieve stirring and mixing, thereby eliminating the need for an additional power drive system and reducing its volume.

[0031] Furthermore, such as Figure 4 As shown, the first turbine assembly 4 includes a first support plate 41 installed at one end inside the housing 1 and a second support plate 42 installed at the other end inside the housing 1; both the first support plate 41 and the second support plate 42 are circular, and a first turbine 43 is installed between the first support plate 41 and the second support plate 42, which support and limit the first turbine 43; the first turbine 43 rotates between the first support plate 41 and the second support plate 42, and both the first support plate 41 and the second support plate 42 are provided with a plurality of first through holes 44 communicating with the first turbine 43. The first through holes 44 are U-shaped and dispersed, which facilitates the passage of liquid silica gel; wherein, the liquid silica gel input into the accommodating cavity 13 flows into the first turbine 43 through the first through holes 44 of the first support plate 41 and rotates and stirs, and flows out through the first through holes 44 of the second support plate 42 to the liquid silica gel outlet 3, thus completing the stirring and mixing.

[0032] To confine the liquid silicone and facilitate its cooling, the first turbine assembly 4 further includes a first turbine housing 45 mounted outside the first turbine 43. The first turbine housing 45 protects the first turbine assembly 4, thereby facilitating subsequent cooling. Figure 2 As shown, the first support plate 41 is installed at one end of the first turbine housing 45, and the second support plate 42 is installed at the other end of the first turbine housing 45, so that the first turbine assembly 4 is a whole and is placed inside the accommodating cavity 13.

[0033] like Figure 4 As shown; to further support the first turbine 43 and reduce the frictional force of its rotation, in this embodiment, both the first support plate 41 and the second support plate 42 are provided with a tip 411 in the middle, and both ends of the first turbine 43 are provided with tip holes 431 that cooperate with the tip 411. The tip 411 is inserted into the tip hole 431 to support the first turbine 43; as shown. Figure 2 As shown; the top 411 support helps reduce friction, making the first turbine 43 rotate faster, which is beneficial for mixing the two-component liquid silica gel more fully and evenly.

[0034] like Figure 4 As shown; the surface of the first turbine 43 is provided with a plurality of inclined stirring blades 46, the stirring blades 46 being spaced apart, the stirring blades 46 driving the two-component liquid silica gel to rotate, making its mixing more thorough and uniform; furthermore, the stirring blades 46 are also provided with an annular groove 47 in the middle, the liquid silica gel staying and stirring in the annular groove 47; this allows the liquid silica gel to mix better, accommodates more liquid silica gel to be stirred, and ensures thorough mixing of the liquid silica gel. Even further, as... Figure 4 As shown, the stirring blades 46 of the first turbine 43 are tilted to the left. In other embodiments, the stirring blades 46 of the first turbine 43 may also be tilted to the right, which is not a limitation here.

[0035] like Figure 2 As shown, a cooling medium flow channel 5 is provided between the housing 1 and the first turbine housing 45. A cooling medium inlet 51 is opened on one side of the housing 1, and a cooling medium outlet 52 is opened on the other side. The cooling medium flows along the cooling medium flow channel 5 to cool the first turbine assembly 4 and also to cool the liquid silica gel inside, thereby extending the chemical reaction time of the liquid silica gel. The cooling medium is generally cooling water.

[0036] During the stirring process, the liquid silica gel will naturally solidify to a certain extent, and heat will also be generated during the stirring process. The liquid silica gel will solidify rapidly as the temperature rises. Therefore, in this embodiment, the cooling medium flows from the cooling medium inlet 51 along the cooling medium channel 5 to cool the surface of the first turbine housing 45 to prevent the internal liquid silica gel from solidifying prematurely.

[0037] like Figure 2 and Figure 4 As shown, a first sealing ring 14 is further provided between the upper housing 11 and the lower housing 12, which can prevent the leakage of cooling medium.

[0038] Meanwhile, a second sealing ring 15 is installed between the upper housing 11 and the first turbine housing 45, and a third sealing ring 16 is installed between the lower housing 12 and the first turbine housing 45; the installation of the second sealing ring 15 and the third sealing ring 16 can prevent the cooling medium from flowing into the interior of the first turbine assembly 4 and interfering with the stirring of the liquid silica gel.

[0039] like Figure 2 and Figure 3As shown, when the liquid silica gel mixer is used for the first time, it may contain air. During the rotation of the first turbine 43, the air moves upward and occupies the volume of the accommodating cavity 13. In order to expel the internal air, the top of the housing 1 is provided with an exhaust port 17. Above the exhaust port 17, there are exhaust balls 18 for sealing the air and exhaust bolts 19 for adjusting the position of the exhaust balls 18. Specifically, the air moves upward and enters the exhaust port 17. Loosening the exhaust bolt 19 causes the exhaust bolt 19 to move upward, and the air pushes the exhaust balls 18 upward. The air is then discharged from around the exhaust balls 18, so that the accommodating cavity 13 is completely filled with liquid silica gel. Finally, the exhaust bolt 19 is tightened to allow the liquid silica gel mixer to operate normally.

[0040] In this embodiment, the liquid silicone outlet 3 is an external threaded interface; in actual application, the liquid silicone inlet 2, liquid silicone outlet 3, cooling medium inlet 51 and cooling medium outlet 52 can be selected with appropriate interfaces according to the actual situation.

[0041] Example 2

[0042] Please refer to Figures 1 to 4 This second embodiment provides a liquid silica gel mixer having a first turbine assembly 4 and a second turbine assembly 8.

[0043] This second embodiment adds a second turbine assembly 8 to the first embodiment; in other embodiments, if a further increase in the degree of mixing is required, more turbine assemblies can be added.

[0044] like Figure 2 As shown, a second turbine assembly 8 is installed below the first turbine assembly 4, and the first turbine assembly 4 and the second turbine assembly 8 are spliced ​​together; the second turbine assembly 8 includes a second turbine housing 81 that is inserted into the first turbine housing 45, and a fourth sealing ring 82 is installed between the first turbine housing 45 and the second turbine housing 81.

[0045] Furthermore, the outer diameter of the end of the first turbine housing 45 is small and it is inserted into the interior of the second turbine housing 81; the installation of the fourth sealing ring 82 can prevent the cooling medium from flowing into the interior of the first turbine assembly 4 and the second turbine assembly 8, thus interfering with the stirring of the liquid silica gel.

[0046] like Figure 2 As shown, one end of the second turbine housing 81 is equipped with a third support plate 83 that abuts against the second support plate 42, and the other end is equipped with a fourth support plate 84. In this embodiment, the second support plate 42 is installed inside the second turbine housing 81, which facilitates the fixing of the second support plate 42 and the third support plate 83.

[0047] like Figure 4 As shown, a second turbine 85 is installed between the third support plate 83 and the fourth support plate 84. The second turbine 85 rotates between the third support plate 83 and the fourth support plate 84. Both the third support plate 83 and the fourth support plate 84 are provided with a plurality of second through holes 86 communicating with the second turbine 85. The second through holes 86 are connected to the first through holes 44.

[0048] like Figure 2 As shown, the liquid silica gel flows out from the first through hole 44 in Example 1, continues to flow through the second through hole 86 into the second turbine 85 for mixing and stirring, and flows out from the second through hole 86 of the fourth support plate 84 to the liquid silica gel outlet 3, completing the mixing and stirring.

[0049] Similar to Embodiment 1, the third support plate 83 and the fourth support plate 84 are provided with a tip 411 in the middle, and the second turbine 85 is provided with tip holes 431 at both ends that cooperate with the tip 411. The tip 411 is inserted into the tip hole 431 to support the second turbine 85.

[0050] Similar to Embodiment 1, the surface of the second turbine 85 is provided with a plurality of inclined stirring blades 46, the stirring blades 46 are spaced apart, and the middle of the stirring blades 46 is also provided with an annular groove 47, in which the liquid silica gel stays and is stirred.

[0051] In this embodiment, as Figure 4 As shown, the stirring blades 46 of the first turbine 43 are tilted to the left, while the stirring blades 46 of the second turbine 85 are tilted to the right; the stirring blades 46 of the second turbine 85 and the stirring blades 46 of the first turbine 43 are tilted in opposite directions. During mixing, changing the turbine rotation direction allows for more thorough mixing of the liquid silica gel. The liquid silica gel continues to rotate and be stirred in the second turbine 85 in the opposite direction, thus achieving multi-stage and multiple-stage mixing, resulting in a higher degree of mixing. Furthermore, if a further increase in the degree of mixing is required, more turbine components can be added.

[0052] Similar to Embodiment 1, the second turbine housing 81 is provided with a cooling medium flow channel 5 on its exterior. The cooling medium flows along the cooling medium flow channel 5 to cool the first turbine housing 45 and the second turbine assembly 8. The cooling medium is generally cooling water.

[0053] Similar to Embodiment 1, the accommodating cavity 13 sequentially accommodates the first turbine housing 45 and the second turbine housing 81 from top to bottom.

[0054] The process of using the liquid silica gel mixer is as follows: First, the liquid silica gel is mixed as follows: The liquid silica gel is input from the liquid silica gel inlet 2, flows into the first turbine 43 through the first through hole 44 of the first support plate 41 and rotates and stirs. It stays and stirs in the annular groove 47 of the first turbine 43, and flows out from the first through hole 44 of the second support plate 42 to the second through hole 86 of the third support plate 83. It passes through the second through hole 86 and enters the second turbine 85 for reverse rotation and stirring. It stays and stirs in the annular groove 47 of the second turbine 85, and flows out from the second through hole 86 of the fourth support plate 84 to the liquid silica gel outlet 3, thus completing the stirring and mixing.

[0055] Furthermore, when a third component or colorant needs to be added, it can be input together from the liquid silica gel inlet 2, so that the three components are stirred and mixed together and output together.

[0056] Secondly, the movement process of the cooling medium: the cooling medium flows from the cooling medium inlet 51 along the cooling medium flow channel 5 to cool the surfaces of the first turbine housing 45 and the second turbine housing 81 to prevent the internal liquid silica gel from solidifying prematurely.

[0057] Finally, the air discharge adjustment process: the air moves upward and enters the exhaust port 17, the exhaust bolt 19 is loosened, the exhaust bolt 19 moves upward, the air pushes the exhaust ball 18 to move upward, the air is discharged upward from all sides of the exhaust ball 18, so that the accommodating cavity 13 is completely filled with liquid silicone, the exhaust bolt 19 is tightened, so that the liquid silicone mixer operates normally.

[0058] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A liquid silicone rubber mixer characterized by: The device includes a housing (1), a liquid silicone inlet (2) on one side of the housing (1) and a liquid silicone outlet (3) at the bottom; a first turbine assembly (4) is installed between the liquid silicone inlet (2) and the liquid silicone outlet (3), the first turbine assembly (4) includes a first support plate (41) installed at one end inside the housing (1) and a second support plate (42) installed at the other end inside the housing (1); a first turbine (43) is installed between the first support plate (41) and the second support plate (42), the first turbine (43) rotates between the first support plate (41) and the second support plate (42), the first support plate (41) and the second support plate (42) are both provided with a plurality of first through holes (44) communicating with the first turbine (43), the liquid silicone flows into the first turbine (43) from the first through holes (44) of the first support plate (41) and rotates and stirs, and flows out from the first through holes (44) of the second support plate (42); The first turbine assembly (4) further includes a first turbine housing (45) installed outside the first turbine (43), with a first support plate (41) installed at one end of the first turbine housing (45) and a second support plate (42) installed at the other end. A second turbine assembly (8) is installed below the first turbine assembly (4), and the first turbine assembly (4) and the second turbine assembly (8) are spliced ​​together; the second turbine assembly (8) includes a second turbine housing (81) that is inserted into the first turbine housing (45), the outer diameter of the end of the first turbine housing (45) is small, and it is inserted into the interior of the second turbine housing (81); a fourth sealing ring (82) is installed between the first turbine housing (45) and the second turbine housing (81); one end of the second turbine housing (81) is fitted with a part that abuts against the second support plate (42). The third support plate (83) is connected to the fourth support plate (84) at the other end; a second turbine (85) is installed between the third support plate (83) and the fourth support plate (84), and the second turbine (85) rotates between the third support plate (83) and the fourth support plate (84). The third support plate (83) and the fourth support plate (84) are each provided with a plurality of second through holes (86) communicating with the second turbine (85). The second through holes (86) are connected to the first through holes (44). The second through holes (86) and the first through holes (44) are both U-shaped and dispersed. The first support plate (41), the second support plate (42), the third support plate (83) and the fourth support plate (84) are all provided with a tip (411) in the middle. The second turbine (85) and the first turbine (43) are provided with tip holes (431) at both ends that cooperate with the tip (411). The tip (411) is inserted into the tip hole (431) to support the first turbine (43) or the second turbine (85). The surfaces of the second turbine (85) and the first turbine (43) are provided with a plurality of inclined stirring blades (46), the stirring blades (46) are spaced apart, and the stirring blades (46) of the second turbine (85) and the stirring blades (46) of the first turbine (43) are inclined in opposite directions; The liquid silica gel drives the first turbine (43) and the second turbine (85) to rotate by its own pressure, thereby achieving stirring and mixing, thus eliminating the need for an additional power drive system and reducing the volume of the liquid silica gel mixer; The stirring blade (46) is also provided with an annular groove (47) in the middle, and the liquid silica gel stays and is stirred in the annular groove (47); so that the liquid silica gel is better mixed, and more liquid silica gel to be stirred is accommodated, so that the liquid silica gel is fully mixed; A cooling medium flow channel (5) is provided between the housing (1), the first turbine housing (45), and the second turbine housing (81). A cooling medium inlet (51) is provided on one side of the housing (1), and a cooling medium outlet (52) is provided on the other side. The cooling medium flows along the cooling medium flow channel (5) to cool the first turbine housing (45) and the second turbine housing (81). The housing (1) includes an upper housing (11) installed on the upper part and a lower housing (12) installed on one side of the upper housing (11). The upper housing (11) and the lower housing (12) are fixedly connected by bolts, and an accommodating cavity (13) is formed inside to accommodate the first turbine housing (45) and the second turbine housing (81). A first sealing ring (14) is installed between the upper housing (11) and the lower housing (12), a second sealing ring (15) is installed between the upper housing (11) and the first turbine housing (45), and a third sealing ring (16) is installed between the lower housing (12) and the second turbine housing (81).

2. A liquid silicone rubber mixer according to claim 1, wherein: The housing (1) has an exhaust hole (17) at the top, and an exhaust ball (18) and an exhaust bolt (19) for adjusting the position of the exhaust ball (18) are installed above the exhaust hole (17).

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