Static machine for mixing pigments

Abstract

The application discloses a static machine for mixing pigments and relates to the technical field of static machines, which comprises a pipe body, a plurality of first spiral bodies are arranged in parallel and at intervals along the axial direction in the pipe body, and two spiral edges of each first spiral body are fixedly connected to the inner wall of the pipe body; a coaxial center rod is rotationally connected in the pipe body, the center rod penetrates through each first spiral body, a plurality of second spiral bodies are fixedly connected in parallel to the center rod along the axial direction, and each second spiral body is alternately distributed with each first spiral body. The static machine for mixing pigments can adjust the staggered degree of each second spiral body relative to the first spiral body according to the mixing difficulty or mixing degree requirement of the fluid to be mixed, so that the energy consumption of the fluid conveying can be reduced as much as possible, such as the power of the fluid pump, under the condition that the mixing degree of the mixed fluid meets the standard.

Description

Technical Field

[0001] This invention relates to the field of static mixing machine technology, specifically to a static mixing machine for pigments. Background Technology

[0002] A static machine allows fluid to flow through a pipeline and impact various types of mixing units, enabling thorough mixing of different fluids even without movement of the mixing units.

[0003] For example, the patent with publication number CN208212929U, entitled "A Static Mixer with Anti-clogging Structure", includes a pipe and at least one mixing unit placed in the pipe. The pipe has a hollow middle section and open ends. The mixing unit includes a first blade unit and a second blade unit, each blade unit including at least one blade plane. The first blade unit and the second blade unit are separately arranged on the inner wall of the pipe along the central axis direction. The two blade units are separated from each other and have the function of preventing clogging. It can be used in fluid conditions containing soft impurities such as hair fibers without forming a blockage.

[0004] In the prior art, such as the aforementioned patent, each mixing unit in the static machine is fixed to the pipeline, and the mixing units are arranged to maximize the mixing effect. This results in the resistance of the mixed fluid passing through the static machine being maximized. For fluids that are easy to mix or require a low degree of mixing, this wastes a portion of the energy used to transport the fluid. Summary of the Invention

[0005] The purpose of this invention is to provide a static pigment mixing machine to overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a static pigment mixing machine, comprising a tube body, wherein a plurality of first spiral bodies are arranged in parallel at intervals along the axial direction inside the tube body, and the two spiral sides of each first spiral body are fixedly connected to the inner wall of the tube body; a coaxial central rod is rotatably connected inside the tube body, the central rod movably passing through the first spiral bodies, and a plurality of parallel second spiral bodies are fixedly connected to the central rod along the axial direction, wherein each second spiral body and each first spiral body are alternately distributed.

[0007] Furthermore, the first spiral is formed by twisting a rectangular plate 180 degrees into a spiral shape, and the second spiral has the same structure as the first spiral.

[0008] Furthermore, the tube body has a bend, and the central rod passes through the bend in a dynamic seal.

[0009] Furthermore, it also includes an adjustment mechanism for controlling the rotation of the central rod to adjust the degree of misalignment between the end of the second spiral and the end of the first spiral.

[0010] Furthermore, the adjustment mechanism is an active adjustment mechanism, which includes a fixed block, which is fixedly connected to the pipe body, and a rotating block is rotatably connected to the fixed block. The central rod moves through the fixed block and is fixedly connected to the rotating block. A bolt is threadedly connected to the rotating block, and the end of the bolt abuts against the fixed block.

[0011] Furthermore, the adjustment mechanism is a passive adjustment mechanism, which includes a fixed block fixedly connected to the tube body, a rotating block rotatably connected to the fixed block, a locking assembly between the rotating block and the fixed block, a central rod movably passing through the fixed block and the rotating block, an arc-shaped groove on the rotating block, the center of the arc-shaped groove being located on the axis of the central rod, a sliding rod fixedly connected to the central rod, one end of the sliding rod being slidably disposed in the arc-shaped groove, an elastic unit being provided between the central rod and the rotating block, the process of the elastic unit restoring its deformation driving the central rod to rotate relative to the rotating block.

[0012] Furthermore, the locking assembly includes a sliding pin, which is slidably connected to the rotating block along the axial direction of the central rod. Two limiting grooves are provided on the fixed block. During the rotation of the rotating block relative to the fixed block, the sliding pin is aligned with the two limiting grooves in sequence. A compression spring is provided between the sliding pin and the rotating block. When the compression spring returns to its original deformation, the sliding pin slides into the corresponding limiting groove.

[0013] Furthermore, the elastic unit is a torsion spring, which is movably sleeved on the central rod. A ring is fixedly connected to the end of the central rod. One end of the torsion spring is fixedly connected to the ring, and the other end is fixedly connected to the rotating block. The sliding rod is fixedly connected to the ring.

[0014] Furthermore, the tube body is connected to a branch tube for injecting pigment.

[0015] Furthermore, a fluid pump is installed on the pipe body.

[0016] In the above technical solution, the present invention provides a static mixing machine for pigments. The fluid to be mixed passes sequentially through a first spiral and a second spiral, continuously changing the flow direction of the fluid, and the fluid is continuously segmented and mixed to achieve good dispersion and thorough mixing between the fluids. Furthermore, the present invention can adjust the degree of staggering of each second spiral relative to the first spiral according to the ease of mixing or the required degree of mixing of the fluid, thereby minimizing the energy consumption of transporting the fluid, such as reducing the power of the fluid pump, while achieving the required degree of mixing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure provided for an embodiment of the present invention;

[0019] Figure 2 A structural cross-sectional view provided for an embodiment of the present invention;

[0020] Figure 3 Provided for embodiments of the present invention Figure 1 Enlarged view of a local structure in the middle;

[0021] Figure 4 Provided for embodiments of the present invention Figure 2 Enlarged view of a local structure in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of an adjustment mechanism provided in another embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the first helix and the second helix provided in an embodiment of the present invention;

[0024] Figure 7 This is a partial structural diagram of Mode 1 provided in an embodiment of the present invention;

[0025] Figure 8 This is a partial structural diagram of Mode 2 provided in the embodiments of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Pipe body; 2. First spiral; 3. Central rod; 4. Second spiral; 5. Fixed block; 6. Rotating block; 7. Bolt; 8. Arc groove; 9. Sliding rod; 10. Elastic unit; 11. Sliding pin; 12. Limiting groove; 13. Compression spring; 14. Circular ring; 15. Branch pipe. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-8This invention provides a static pigment mixing machine, comprising a tube 1. Multiple first spirals 2 are arranged axially and spaced apart inside the tube 1, with both spiral edges of each first spiral 2 fixedly connected to the inner wall of the tube 1. A coaxial central rod 3 is rotatably connected inside the tube 1, movably passing through each of the first spirals 2. Multiple parallel second spirals 4 are fixedly connected axially to the central rod 3, with each second spiral 4 alternating with each first spiral 2, i.e., first spiral 2-second spiral 4-first spiral 2-second spiral 4... The ends of the second spirals 4 are offset from the ends of the first spirals 2. Preferably, the spiral directions of the second spirals 4 and the first spirals 2 are opposite, or the spiral directions of the second spirals 4 and the first spirals 2 are the same. Preferably, the first spiral 2 is formed by twisting a rectangular plate 180 degrees into a spiral shape, and the second spiral 4 has the same structure as the first spiral 2. Preferably, a branch pipe 15 for injecting pigment is connected to the tube 1. A fluid pump is provided on the tube 1 for transporting fluid within the tube 1.

[0030] In the above technical solution, the present invention provides a static mixing machine for pigments. The fluid to be mixed passes sequentially through a first spiral 2 and a second spiral 4, continuously changing the flow direction of the fluid, and the fluid is continuously segmented and mixed to achieve good dispersion and thorough mixing between the fluids. Furthermore, the present invention can adjust the degree of staggering of each second spiral 4 relative to the first spiral 2 according to the ease of mixing or the required degree of mixing of the fluid, thereby minimizing the energy consumption of transporting the fluid, such as reducing the power of the fluid pump, while achieving the required degree of mixing.

[0031] As a preferred embodiment of the present invention, the tube body 1 has a bend, and the central rod 3 passes through the bend in a dynamic seal. The present invention also includes an adjustment mechanism for controlling the rotation of the central rod 3 to adjust the degree of misalignment between the end of the second spiral 4 and the end of the first spiral 2.

[0032] In one embodiment of the present invention, the adjustment mechanism is an active adjustment mechanism, comprising a fixed block 5 fixedly connected to the pipe body 1, a rotating block 6 rotatably connected to the fixed block 5, a central rod 3 movably passing through the fixed block 5 and fixedly connected to the rotating block 6, and a bolt 7 threadedly connected to the rotating block 6, the end of the bolt 7 abutting against the fixed block 5. Loosening the bolt 7 and rotating the rotating block 6 causes the central rod 3 to rotate, which in turn drives each second spiral 4 to rotate, thereby adjusting the degree of misalignment between the ends of each second spiral 4 and the ends of the first spiral 2. After adjustment, the bolt 7 is tightened again. The greater the degree of misalignment between the ends of the second spiral 4 and the ends of the first spiral 2 (the angle between them is 90 degrees at the maximum), the better the fluid mixing effect and the greater the resistance when the fluid passes through; the smaller the degree of misalignment between the ends of the second spiral 4 and the ends of the first spiral 2 (the angle between them is 0 degrees at the minimum), the worse the fluid mixing effect and the smaller the resistance when the fluid passes through.

[0033] In another embodiment of the present invention, the adjustment mechanism is a passive adjustment mechanism, which includes a fixed block 5, which is fixedly connected to the tube body 1. A rotating block 6 is rotatably connected to the fixed block 5. A locking component is provided between the rotating block 6 and the fixed block 5. A central rod 3 movably passes through the fixed block 5 and the rotating block 6. An arc-shaped groove 8 is provided on the rotating block 6. The center of the arc-shaped groove 8 is located on the axis of the central rod 3. A sliding rod 9 is fixedly connected to the central rod 3. One end of the sliding rod 9 is slidably disposed in the arc-shaped groove 8. An elastic unit 10 is provided between the central rod 3 and the rotating block 6. The process of the elastic unit 10 restoring its deformation drives the central rod 3 to rotate relative to the rotating block 6. As a preferred embodiment, the locking assembly includes a sliding pin 11, which is slidably connected to the rotating block 6 along the axial direction of the central rod 3. Two limiting grooves 12 are provided on the fixed block 5. During the rotation of the rotating block 6 relative to the fixed block 5, the sliding pin 11 sequentially aligns with the two limiting grooves 12. A compression spring 13 is provided between the sliding pin 11 and the rotating block 6. When the compression spring 13 returns to its original deformation, the sliding pin 11 slides into the corresponding limiting groove 12. Preferably, the elastic unit 10 is a torsion spring, which is movably sleeved on the central rod 3. A ring 14 is fixedly connected to the end of the central rod 3. One end of the torsion spring is fixedly connected to the ring 14, and the other end is fixedly connected to the rotating block 6. The sliding rod 9 is fixedly connected to the ring 14.

[0034] In this embodiment, the adjustment mechanism can be adjusted to two modes: Mode 1 and Mode 2. In each mode, it can adaptively adjust according to the power of the fluid pump delivering the fluid. In Mode 1, see... Figure 7The spring force of the compression spring 13 keeps the sliding pin 11 in one of the limiting grooves 12, locking the rotating block 6 relative to the fixed block 5 so it cannot rotate. When the central rod 3 drives the sliding rod 9 to rotate, the sliding rod 9 slides within the arc groove 8, and the angle α between the end of the second spiral 4 and the end of the first spiral 2 varies between 60 and 90 degrees. The spring force of the torsion spring causes the angle between the end of the second spiral 4 and the end of the first spiral 2 to tend to decrease. For example, when no fluid passes through, the angle α between the end of the second spiral 4 and the end of the first spiral 2 is 60 degrees. When fluid passes through, the force of the fluid impacting the second spiral 4 causes the second spiral 4 to overcome the spring force of the torsion spring and rotate, and the angle between the end of the second spiral 4 and the end of the first spiral 2 tends to increase. At this time, according to the mixing requirements, if it is necessary to ensure the flow at the outlet of the pipe 1... To improve fluid mixing while maintaining a relatively constant flow rate, the power of the fluid pump is increased, increasing the impact force of the fluid on the second spiral 4 and increasing the angle between the ends of the second spiral 4 and the first spiral 2, thus improving the mixing effect. Simultaneously, the flow resistance increases, keeping the fluid flow rate at the outlet of pipe 1 relatively constant. Alternatively, to maintain a relatively constant flow rate at the outlet of pipe 1 while appropriately reducing the mixing effect, the power of the fluid pump is reduced, decreasing the impact force of the fluid on the second spiral 4. The spring force of the torsion spring reduces the angle between the ends of the second spiral 4 and the first spiral 2, appropriately reducing the mixing effect. Simultaneously, the flow resistance decreases, keeping the fluid flow rate at the outlet of pipe 1 relatively constant. For mode two, refer to... Figure 8The spring force of the compression spring 13 keeps the sliding pin 11 in another limiting groove 12, and the rotating block 6 is locked relative to the fixed block 5 and cannot rotate. When the central rod 3 drives the sliding rod 9 to rotate, the sliding rod 9 slides in the arc groove 8, and the angle α between the end of the second spiral 4 and the end of the first spiral 2 changes between 90 and 120 degrees. The spring force of the torsion spring makes the angle between the end of the second spiral 4 and the end of the first spiral 2 tend to decrease. For example, when there is no fluid passing through, the angle α between the end of the second spiral 4 and the end of the first spiral 2 is 90 degrees. When fluid passes through, the force of the fluid impacting the second spiral 4 makes the second spiral 4 overcome the spring force of the torsion spring and rotate, and the angle between the end of the second spiral 4 and the end of the first spiral 2 tends to increase. At this time, according to the mixing requirements, if it is necessary to ensure that the pipe 1 To increase the fluid flow rate at the outlet while allowing for a slight decrease in fluid mixing, the power of the fluid pump is increased. This increases the impact force of the fluid on the second spiral 4, and the angle between the end of the second spiral 4 and the end of the first spiral 2, thus appropriately reducing the fluid mixing effect. Simultaneously, the fluid flow resistance decreases, resulting in an increase in the fluid flow rate at the outlet of pipe 1. Alternatively, to ensure improved fluid mixing while allowing for a slight decrease in the fluid flow rate at the outlet of pipe 1, the power of the fluid pump is reduced. This decreases the impact force of the fluid on the second spiral 4, and the spring force of the torsion spring reduces the angle between the end of the second spiral 4 and the end of the first spiral 2, thus improving the fluid mixing effect. However, this also increases the fluid flow resistance, resulting in a slight decrease in the fluid flow rate at the outlet of pipe 1. Choosing either mode one or mode two according to production needs can effectively balance power consumption (fluid pump power), mixing effect, and mixing rate (pump outlet flow rate), as shown in the table below. When switching from mode one to mode two, the spring force of the compression spring 13 overcomes the fluctuation of the sliding pin 11, and the sliding pin 11 exits the current limiting groove 12. Then, the rotating block 6 is rotated so that the sliding pin 11 is aligned with another limiting groove 12. The sliding pin 11 is released, and the spring force of the compression spring 13 causes the sliding pin 11 to be inserted into the current aligned limiting groove 12, locking the rotating block 6 relative to the fixed block 5 so that it cannot rotate.

[0035]

[0036] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A static pigment mixing machine, characterized in that, The tube (1) includes a tube body (1) with multiple first spiral bodies (2) arranged in parallel along the axial direction inside the tube body (1). The two spiral sides of each first spiral body (2) are fixedly connected to the inner wall of the tube body (1). A coaxial central rod (3) is rotatably connected inside the tube body (1). The central rod (3) movably passes through each first spiral body (2). Multiple parallel second spiral bodies (4) are fixedly connected to the central rod (3) along the axial direction. Each second spiral body (4) and each first spiral body (2) are alternately distributed. It also includes an adjustment mechanism, which controls the rotation of the central rod (3) to adjust the degree of misalignment between the end of the second spiral (4) and the end of the first spiral (2); The adjustment mechanism is a passive adjustment mechanism, which includes a fixed block (5), a fixed block (5) fixedly connected to the tube body (1), a rotating block (6) rotatably connected to the fixed block (5), a locking component between the rotating block (6) and the fixed block (5), a central rod (3) movably passing through the fixed block (5) and the rotating block (6), an arc groove (8) is opened on the rotating block (6), the center of the arc groove (8) is located on the axis of the central rod (3), a sliding rod (9) is fixedly connected to the central rod (3), one end of the sliding rod (9) is slidably set in the arc groove (8), an elastic unit (10) is set between the central rod (3) and the rotating block (6), and the process of the elastic unit (10) restoring its deformation drives the central rod (3) to rotate relative to the rotating block (6); The locking assembly includes a sliding pin (11), which is slidably connected to the rotating block (6) along the axial direction of the central rod (3). The fixed block (5) has two limiting grooves (12). During the rotation of the rotating block (6) relative to the fixed block (5), the sliding pin (11) is aligned with the two limiting grooves (12) in sequence. A compression spring (13) is provided between the sliding pin (11) and the rotating block (6). When the compression spring (13) recovers its deformation, the sliding pin (11) slides into the corresponding limiting groove (12). The elastic unit (10) is a torsion spring, which is movably sleeved on the central rod (3). A ring (14) is fixedly connected to the end of the central rod (3). One end of the torsion spring is fixedly connected to the ring (14), and the other end is fixedly connected to the rotating block (6). The sliding rod (9) is fixedly connected to the ring (14). When the fluid passes through, the force of the fluid impacting the second spiral body causes the second spiral body to overcome the elastic force of the torsion spring and rotate. The first spiral (2) is formed by twisting a rectangular plate 180 degrees into a spiral shape, and the second spiral (4) has the same structure as the first spiral (2). The adjustment mechanism can be adjusted to two modes: mode one and mode two. In mode one, the elastic force of the compression spring (13) causes the sliding pin 11 to be located in one of the limiting grooves (12), and the angle α between the end of the second spiral (4) and the end of the first spiral (2) varies between 60 and 90 degrees. When there is no fluid passing through, the angle α between the end of the second spiral (4) and the end of the first spiral (2) is 60 degrees. In mode two, the elastic force of the compression spring (13) causes the sliding pin (11) to be located in another limiting groove (12), and the included angle α between the end of the second spiral (4) and the end of the first spiral (2) varies between 90 and 120 degrees. When no fluid passes through, the included angle α between the end of the second spiral (4) and the end of the first spiral (2) is 90 degrees.

2. The static pigment mixing machine according to claim 1, characterized in that, The tube body (1) has a bend, and the central rod (3) passes through the bend in a dynamic seal.

3. The static pigment mixing machine according to claim 1, characterized in that, The tube body (1) is connected to a branch tube (15) for injecting pigment.

4. The static pigment mixing machine according to claim 1, characterized in that, A fluid pump is installed on the pipe body (1).

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