CN108525596B - A lobe-shaped cutting fluid multi-component online mixing mechanism - Google Patents

Abstract

The invention discloses a lobe-shaped cutting fluid multi-component online mixing mechanism, which includes a fixed frame. The bottom plate of the fixed frame is provided with injection pumps arranged in a staggered manner. The bottom plate of the fixed frame is provided with inlet joints in sequence. , the first mixing pipe, the intermediate joint, the second mixing pipe, the third mixing pipe and the nozzle, the inlet joint, the first mixing pipe, the intermediate joint, the second mixing pipe, the third mixing pipe and the nozzle are sequentially connected, The first mixing tube, the second mixing tube, and the third mixing tube are fixedly connected to the bottom plate of the fixed frame. The first mixing tube is provided with a circular lobe mixer and a large fixed bracket that supports the circular mixer lobe. , the second mixing tube is provided with a conical lobe mixer, a large fixed bracket and a small fixed bracket supporting the conical lobe mixer, and the syringe pump is connected to the first mixing tube through a liquid pipe. The online mixing mechanism of the present invention can simultaneously mix different components of multiple cutting fluids online, has good mixing uniformity, and is suitable for popularization and use.

Description

A lobe-shaped cutting fluid multi-component online mixing mechanism

Technical field

The invention belongs to the field of online mixing of cutting fluid, and specifically relates to a multi-group online mixing mechanism for lobe-shaped cutting fluid.

Background technique

Metal machine tool cutting is basically inseparable from cutting fluid, which mainly plays the roles of cooling, lubrication, rust prevention and cleaning. Cutting fluids composed of complex chemical formulas have derived hundreds of cutting fluid types with different functions. There are many problems in the storage and use of these different types of cutting fluids, such as storage difficulties, high transportation costs and serious environmental pollution. In order to reduce the problems that exist during the use of cutting fluid, according to the requirements for cutting fluid performance in cutting processing, according to the formula, the cooling and lubrication functions of cutting fluid cutting processing are realized through online combination.

Since the content of cutting fluid is very small during the use of minimum quantity lubrication cutting fluid, the online mixing of each component of the cutting fluid is the mixing of trace components in the macroscopic fluid. An ideal mixer requires the mixing process to have three characteristics, namely rapidity in time, uniformity in space and low cost. The conventional jet mixer mainly relies on the viscous shear force of the mainstream to pump the secondary flow and mix it with it. The rate of injection mixing is slow and requires a long mixing tube to achieve adequate mixing. The distribution of cutting fluid in the cutting area must ensure uniform mixing, which requires the precise coordination of compressed air, cutting fluid components and cutting dosage to complete. In order for the minimum quantity lubrication cutting fluid to achieve a certain cleaning, cooling and lubrication effect, the droplets must be crushed extremely fine, and the oil droplet size reaches the micron level; the jet liquid beam must have appropriate penetration to ensure that each group of cutting fluid It can be distributed evenly on the workpiece to be cut and achieve good lubrication effect.

In order to study the uniform mixing of microfluids in macroscopic fluids, a variable cross-section mixing tube and a thin-walled porous mixing model mixer are designed to bend the inlet of the thin-walled lobe mixing piece into the shape of a periodic lobe. By changing the flow field of jet mixing, At the lobe mixing patch, bounded by the contour line of the lobe, the main flow velocity has a transverse component extending outward along the wave crest, and the secondary flow velocity has a transverse component inward along the wave trough. As a result, a pair of circulating flows with opposite directions are formed on both sides of the wave lobe, so that the fluid can be fully mixed in a short mixer.

Contents of the invention

In order to achieve the above object, the present invention provides a lobe-shaped cutting fluid multi-component online mixing mechanism, which bends the inlet of the thin-walled lobe mixing piece into the shape of a periodic lobe, and establishes a porous medium model on the thin-walled lobe mixing piece to realize cutting fluid Online multi-phase mixing is mainly used in metal cutting machine tools to cool and lubricate cutting tools, improve cutting quality and increase cutting efficiency.

The technical solution of the present invention is as follows: a lobe-shaped cutting fluid multi-component online mixing mechanism, including a fixed frame, the bottom plate of the fixed frame is provided with staggered arrangement of injection pumps, and the bottom plate of the fixed frame is provided with There is an inlet joint, a first mixing tube, an intermediate joint, a second mixing tube, a third mixing tube and a nozzle. The inlet joint, the first mixing tube, the intermediate joint, the second mixing tube, the third mixing tube and the nozzle are in sequence. The first mixing tube, the second mixing tube, and the third mixing tube are snap-connected and fixedly connected to the bottom plate of the fixed frame. The first mixing tube is provided with a circular lobe mixer and a support for supporting the circular mixer lobe. A large fixed bracket, the second mixing tube is provided with a conical lobe mixer, a large fixed bracket supporting the conical lobe mixer, and a small fixed bracket, and the syringe pump is connected to the first mixing tube through a liquid pipe;

Further, the circular lobe mixer includes circular lobe mixing plates arranged in order from large to small in diameter. Both ends of the circular lobe mixing plate are provided with circular end surfaces that are engaged with large fixed brackets. , there are component pipes in the wave peaks and troughs of the circular lobe mixing plate. The component pipes form component inlets on the circular end faces of the circular lobe mixing plates. The component pipes are provided with components that pass through the circular wave. The mixing piece micropores on the side wall of the valve mixing piece are connected to the liquid pipe rack on the circular end surface;

Further, the conical lobe mixer includes conical lobe mixing plates arranged in order from largest to smallest in diameter. The conical lobe mixing plates have a larger diameter near the middle joint end, a larger tapered end surface, and a larger end surface near the middle joint. The third mixing tube end has a smaller diameter and is a tapered small end surface. The tapered small end surface of the tapered lobe mixing plate is provided with an end cover. The peaks and troughs of the tapered lobe mixing plate are provided with component pipes. The component pipes Component inlets are formed on the tapered small end surface and the tapered large end surface respectively. The component pipeline is provided with mixing plate micropores that pass through the side wall of the tapered lobe mixing plate. The tapered small end surface connects the liquid pipe and the end surface. The cover is connected, the end cover is snap-connected to the small fixed bracket, the tapered large end surface is connected to the liquid pipe rack, and is snap-connected to the large fixed bracket;

Further, the first mixing tube includes a mounting seat fixedly connected to the bottom plate and a first cylinder fixedly connected to the mounting seat. The mounting seat is provided with a transition flow channel along the axial direction of the mixing pipe. The transition flow channel is installed during installation. The side wall of the seat near the inlet joint is connected to the syringe pump through a liquid pipe, and the side wall of the mounting seat near the inlet joint is provided with a component inlet; the first cylinder is a hollow tubular structure with a first mixing chamber inside, and the inner wall of the first cylinder There are component outlets at both ends that communicate with the component inlet, and the component inlet is connected through a liquid tube syringe pump; the end of the first cylinder near the inlet connector is sequentially provided with grooves that are connected to the inlet connector end from the outside to the inside. There is a fixed bracket groove for placing the fixed bracket, and the end near the middle joint is provided with a groove for snapping with the middle joint and a fixed bracket groove for placing the fixed bracket in sequence from the outside to the inside; the component outlet is set on the fixed bracket groove;

Further, the second mixing tube includes a mounting seat fixedly connected to the bottom plate and a second cylinder fixedly connected to the mounting seat. The side wall of the mounting seat near the middle joint is provided with a transition flow from the first mixing tube mounting seat. The second cylinder has a component inlet that matches the channel; the second cylinder has a tubular structure and is equipped with a tapered inner cavity. There are component outlets at both ends of the inner wall of the second cylinder that communicate with the component inlet. The second mixer component inlet and the third The transition channel of the first mixer is connected by a short liquid pipe; the end of the second cylinder near the third mixing pipe is sequentially provided with grooves for snapping with the third mixing pipe from the outside to the inside, and a small fixed bracket for placing a small fixed frame. slot, the end cover slot for placing the end cover, the end near the middle joint is sequentially provided from the outside to the inside with the groove for snapping with the middle joint, and a large fixed bracket slot for placing the large fixed bracket; the component outlet is provided with a corresponding fixed bracket slot ;

Further, the large fixed bracket includes an outer ring, an inner ring arranged concentrically with the outer ring, and a short rod connecting the outer ring and the inner ring. The angle between the connected short rods is 120°. The large fixed bracket is a lobe mixer. There is a lobe-shaped snap ring matching the lobe mixing plate at the corresponding position. The lobe-shaped snap ring is engaged with the end face of the lobe mixing plate to fix the lobe mixing plate. The lobe-shaped snap ring is at a position corresponding to the short rod. There is an original liquid inlet, and the original liquid hole is provided on the ring at a position corresponding to the short rod in the vertical direction. The original liquid inlet is connected with the original liquid hole, and the original liquid inlet is provided with equidistant original liquid inlet branches.

Compared with the prior art, the beneficial effects of the present invention are: the lobe-shaped cutting fluid multi-component online mixing mechanism of the present invention is provided with a first mixing tube, a circular lobe mixer, a second mixing tube, a conical wave With the flap mixer, multiple different components of cutting fluid can be mixed online in the mixing tube. The components can be mixed immediately and used as needed, thus avoiding storage difficulties and transportation problems caused by the wide variety of cutting fluids in production. High cost and other issues; at the same time, the uniformity of online mixing of multi-component cutting fluid is improved through the mixer's unique layered structure and porous micro-flow mixing; the online mixing mechanism of the present invention simplifies the machine tool coolant mechanism in the traditional mixing structure, reducing cutting It eliminates the contamination of liquid equipment and is easy to use, making it suitable for subsequent promotion and use.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention

Figure 2 is a schematic diagram of the assembly of the present invention

Figure 3 is a cross-sectional view of the present invention

Figure 4 is a schematic assembly diagram of the first mixing tube in the present invention

Figure 5 is a cross-sectional view of the first mixing tube in the present invention

Figure 6 is a right view of the first mixing tube in the present invention

Figure 7 is a left view of the first mixing tube in the present invention

Figure 8 is a schematic structural diagram of the circular lobe mixing plate in the present invention.

Figure 9 is a schematic assembly diagram of the second mixing tube in the present invention

Figure 10 is a cross-sectional view of the second mixing tube in the present invention

Figure 11 is a right view of the second mixing tube in the present invention

Figure 12 is a left view of the second mixing tube in the present invention

Figure 13 is a schematic structural diagram of the tapered lobe mixing plate in the present invention.

Figure 14 is a schematic diagram of the connection of the liquid pipe between the syringe pump and the mixing pipe in the present invention

Figure 15 is an enlarged schematic diagram of part H of Figure 14

Figure 16 is an enlarged schematic diagram of partial G in Figure 14

Figure 17 is a schematic structural diagram of the small and medium-sized fixed bracket of the present invention.

Figure 18 is a cross-sectional view of the small and medium-sized fixed bracket of the present invention

Figure 19 is a schematic structural diagram of the large fixed bracket in the present invention

Figure 20 is a cross-sectional view of the large fixed bracket in the present invention

Figure 21 is a left side view of the end cap in the present invention

Figure 22 is a right view of the end cap in the present invention

Figure 23 is a schematic structural diagram of the third mixing tube in the present invention

Figure 24 is a cross-sectional view of the intermediate joint in the present invention

Figure 25 is a cross-sectional view of the inlet joint of the present invention

Figure 26 is a cross-sectional view of the nozzle of the present invention

Figure 27 is a schematic diagram of the flow of cutting fluid in the first mixing tube in the present invention.

Implementation

As shown in Figures 1, 2, and 3, a lobe-shaped cutting fluid multi-component online mixing mechanism includes a fixed frame 110, a syringe pump 120, a liquid pipe 130, an inlet joint 91, a first mixing pipe 1, and an intermediate joint 98 , the second mixing pipe 2, the third mixing pipe 3, the nozzle 97, the fixing frame 110 is a plate-like structure with an L-shaped cross-section, including a base plate 111 and a mounting plate fixedly connected to it. The base plate 111 is provided with a fixed mixing pipe. Positioning hole 112, the mounting plate is provided with a fixing hole 113 of the positioning fixing frame 110, the bottom plate 111 is provided with a staggered arrangement of syringe pumps 120, and the bottom plate 111 is provided with an inlet joint 91 and a first mixing tube 1 that are connected in sequence. , the intermediate joint 98, the second mixing tube 2, the third mixing tube 3, the nozzle 97, the first mixing tube 1, the second mixing tube 2 and the third mixing tube 3 are firmly connected to the bottom plate 111; as shown in Figure 14, the injection The pump 120 passes through the liquid pipe 130 (liquid pipe 1316, liquid pipe 1313, liquid pipe 1318, liquid pipe 1326, liquid pipe 1323, liquid pipe 1328, liquid pipe 1336, liquid pipe 1333, liquid pipe 1338, liquid pipe 1346, liquid pipe 1343 , liquid pipe 1348) is connected to the first mixing pipe 1;

As shown in Figure 4, the first mixing tube 1 is equipped with a circular lobe mixer and two large fixed brackets 7. The large fixed brackets 7 are installed at both ends of the circular lobe mixer and are snap-connected to it, as shown in Figure 5 , 6 and 7, the first mixing pipe 1 includes a mounting base and a first cylinder fixedly connected to the mounting base. Positioning holes are provided at corresponding positions of the mounting base and the bottom plate positioning hole 112. The mounting base is positioned by bolts and the mounting base. The hole and the bottom plate positioning hole are fixedly connected to the bottom plate. The mounting base is equipped with 6 transition channels (116, 117, 118, 126, 127, 128) along the axial direction of the mixing tube.

As shown in Figure 15, the flow channel passes through the liquid pipes (liquid pipe 1316, liquid pipe 1313, liquid pipe 1318, liquid pipe 1326, liquid pipe 1323, liquid pipe) connected to the syringe pump 120 on the side wall of the mounting seat near the inlet joint 91 1328), the side wall of the mounting base near the inlet connector 91 is provided with liquid pipes (liquid pipe 1336, liquid pipe 1333, liquid pipe 1338, liquid pipe 1346, liquid pipe 1343, liquid pipe 1348) connected to the syringe pump 120 Component inlet; the first cylinder is a hollow tubular structure with a first mixing chamber inside. The inner wall of the first cylinder is provided with 3 equidistant component outlets (141, 142, 143) near the middle joint 98. There are three equidistant component outlets (131, 132, 133) at the end of the joint 91. The component inlet and the component outlet communicate through flow channels (liquid pipe 1336 communicates with the component outlet 141, liquid pipe 1333 communicates with the component outlet The outlet 142 is connected, the liquid pipe 1338 is connected with the component outlet 143, the liquid pipe 1346 is connected with the component outlet 131, the liquid pipe 1343 is connected with the component outlet 132, the liquid pipe 1348 is connected with the component outlet 133); the first cylinder is near The end of the inlet connector 91 is sequentially provided with a groove for snapping with the end of the inlet connector 91 from the outside to the inside, and a fixed bracket groove for placing the fixing frame. The end near the 98 end of the middle connector is sequentially provided with a snap fit with the middle connector 98 from the outside to the inside. grooves and fixed bracket grooves for placing the fixed bracket; component outlets (141, 142, 143) and component outlets (131, 132, 133) are respectively set on the corresponding fixed bracket grooves;

The circular lobe mixer includes a circular lobe mixing plate 8, a circular lobe mixing plate 87, and a circular lobe mixing plate 88 arranged in order from large to small in diameter. The circular lobe mixing plate 87, The circular lobe mixing plate 88 and the circular lobe mixing plate 8 have the same structure. The circular lobe mixing plate 8 is used as an example for explanation below. As shown in Figure 8, the circular lobe mixing plate 8 has two ends. The circular end faces 82 of the large fixed bracket 7 are snap-connected. The peaks and troughs of the circular lobe mixing piece 8 are provided with component pipes. The component pipes are formed on the circular end faces 82 at both ends of the circular lobe mixing piece 8. The component pipe is provided with a mixing piece microhole that passes through the side wall of the circular mixing piece. The cutting fluid components in the component pipe seep out through the mixing piece micropores into the circular mixer layer. The gap in the structure is mixed with the main fluid flowing through it. The component inlets at the corresponding positions of the circular end surface and the large fixed bracket 7 are connected to the large fixed bracket 7 through connecting liquid pipes. The other component inlets are mixed according to the required cutting fluid quantity. The connecting liquid pipes are connected according to the number of intervals (the number of cutting fluids that need to be mixed - 1). The connecting liquid pipes connect the component pipes end to end to form a circuitous flow channel and are sealed with plugs at the ends, so that the cutting fluid can be circulated to the greatest extent. Flows through the entire circular lobe mixing piece 8 to achieve uniform mixing of the cutting fluid;

As shown in Figure 9, the second mixing tube 2 is equipped with a conical lobe mixer, a small fixed bracket 4, and a large fixed bracket 7. The small fixed bracket 4 is set at the small diameter end of the conical lobe mixer and is clamped with it. The large fixed bracket 7 is set on the large diameter end of the conical lobe mixer and snaps therewith; as shown in Figures 10, 11, and 12, the second mixing tube 2 includes a mounting base and a second mixing tube fixedly connected to the mounting base. The cylinder body, the mounting base and the base plate positioning hole 112 are provided with positioning holes at corresponding positions. The mounting base is fixedly connected to the base plate through bolts, the mounting base positioning holes and the base plate positioning holes; the side wall of the mounting base near the middle joint 98 is provided with the first The transition channels (116, 117, 118, 126, 127, 128) in the mixing tube mounting base match the component inlets (the component inlet 216 is connected to the transition channel 116, the component inlet 217 is connected to the transition channel 117, The component inlet 218 is connected to the transition channel 118, the component inlet 226 is connected to the transition channel 126, the component inlet 227 is connected to the transition channel 127, the component inlet 228 is connected to the transition channel 128);

The second cylinder has a tubular structure with a tapered inner cavity. The inner wall of the second cylinder is provided with 3 equidistant component outlets (211, 212, 213) at the end near the middle joint 98 and the 3 ends near the third mixing tube. There are 3 equidistant component outlets (221, 222, 223). The component inlets and component outlets communicate through flow channels, as shown in Figure 15, between the second mixer 2 and the first mixer 1 Communicate through the short liquid pipes (9, 982, 983, 984, 9, 986) (the transition channel 116 communicates with the component outlet 211 through the liquid pipe 9, and the transition channel 117 communicates with the component outlet 212 through the liquid pipe 982. The flow channel 118 communicates with the component outlet 213 through the liquid pipe 983. The transition channel 126 communicates with the component outlet 221 through the liquid pipe 984. The transition channel 127 communicates with the component outlet 222 through the liquid pipe 9. The transition channel 128 passes through the liquid pipe 984. Pipe 986 communicates with the component outlet 223); the end of the second cylinder near the third mixing pipe 3 is sequentially provided with a groove for snapping with the third mixing pipe 3 and a small fixed bracket for placing the small fixed bracket 4 from the outside to the inside. slot, the end cover slot for placing the end cover 5, the end near the middle joint 98 is sequentially provided with a groove for snapping with the middle joint 98 from the outside to the inside, and a large fixed bracket slot for placing the large fixing bracket 7; the component outlet (221 , 222, 223) are set on the small fixed bracket groove, and the component outlets (211, 212, 213) are set on the large fixed bracket groove;

The conical lobe mixer includes a conical lobe mixing plate 6, a conical lobe mixing plate 67, and a conical lobe mixing plate 68 arranged in order from large to small in diameter. The diameter of the conical lobe mixing plate 6 is The smaller end is provided with an end cover 5, the tapered lobe mixing piece 67 is provided with an end cover 57, the smaller diameter is provided with an end cover 57, the smaller diameter conical lobe mixing piece 68 is provided with an end cover 58; the conical lobe mixing piece 67, cone The structure of the conical lobe mixing plate 68 and the conical lobe mixing plate 6 is the same. The conical lobe mixing plate 6 is taken as an example for explanation below. As shown in Figure 13, the diameter of the end of the conical lobe mixing plate 6 near the middle joint 98 is The larger diameter is a tapered large end face 63, and the diameter of the third end near the third mixing tube is a smaller tapered small end face 62. There are component pipes in the peaks and troughs of the tapered lobe mixing piece 6, and the component pipes are located in the tapered small end face. Small component entrance holes (such as component small entrance holes 621, 622, 623) are formed on the end face 62, and large component entrance holes (such as component large entrance holes 631, 632, 633) are formed on the tapered large end surface 63. The component pipe is provided with mixing plate micropores that pass through the side wall of the conical lobe mixing plate. The cutting fluid components in the component pipe seep out through the mixing plate micropores into the gaps in the layered structure of the conical lobe mixer. Mix with the main fluid flowing through; the component small inlets on the tapered small end surface 62 corresponding to the end cover 5 are connected to the end cover 5 through the connecting liquid pipe, and other component small inlets pass through according to the amount of cutting fluid that needs to be mixed The connecting liquid pipe is connected according to the number of intervals (the number of cutting fluids that need to be mixed - 1). The large tapered end surface 63 is connected to the large fixed bracket 7. The component large inlet hole at the corresponding position is connected to the large fixed bracket 7 through the connecting liquid pipe. Others The large inlet holes of the components are connected according to the number of intervals (amount of cutting fluid to be mixed - 1) through connecting liquid pipes according to the amount of cutting fluid that needs to be mixed. The connecting liquid pipes connect the component pipes end to end to form a circuitous flow channel, and at the end Through the plug seal, the cutting fluid can flow through the entire conical lobe mixing piece 6 to the greatest extent to achieve uniform mixing. The end cover 5 is set outside the conical small end surface 62 to interfere with it and protect the connecting liquid pipe. The end cover 5 is snap-connected with the small fixed bracket 4, and the large fixed bracket 7 is set outside the tapered end surface 63 to interfere with it and protect the connecting liquid pipe;

As shown in Figures 17 and 18, the small fixed bracket 4 includes a ring and an inverted Y-shaped connecting rod arranged inside the ring and fixedly connected to it. The center of the connecting rod is the center of the ring. The connecting rods include one end connected to each other and adjacent adjacent ones. The angle between the straight rod, the left inclined rod and the right inclined rod is 120°. The connecting rod is provided with a raw liquid inlet at the corresponding position of the conical lobe mixer (the straight rod and the conical lobe mixing plate 6 are located at the corresponding position. The original liquid inlet 410, the original liquid inlet 420 on the left inclined rod, the original liquid inlet 430 on the right inclined rod), the original liquid holes (41, 42, 43) are provided on the ring at the corresponding positions of the straight rod. The original liquid holes are used according to the It needs to be sealed with a plug. There are original liquid flow channels in the connecting rod that are connected to the original liquid holes (41, 42, 43) and the original liquid inlet (original liquid inlet 410, 420, 430). There are equidistant original liquid inlets in the original liquid inlet. The original liquid inlet branches (411, 412, 413) are connected through arc-shaped conduits and connected to the original liquid flow channel (the original liquid inlet branches 411, 412, 413 are connected through arc-shaped conduits 414, and the arc-shaped conduit 414 is connected to the original liquid hole. 41 connected to the original liquid flow channel), when using, seal the two original liquid inlets with plugs as needed;

As shown in Figures 19 and 20, the large fixed bracket 7 includes an outer ring, an inner ring arranged concentrically with the outer ring, and a short rod connecting the outer ring and the inner ring. The angle between the connected short rods is 120°. The large fixed bracket 7. The lobe mixer is equipped with a lobe-shaped snap ring that matches the lobe mixing plate at the corresponding position. The lobe-shaped snap ring is engaged with the end face of the lobe mixing plate to fix the lobe mixing plate. The lobe-shaped snap ring is connected with The short rod is provided with original liquid inlets at corresponding positions (original liquid inlets 710, 720, 730 at corresponding positions of the short rod and circular lobe mixing piece 8), and the ring is provided with original liquid holes (71, 72, 73). When in use, seal it with a plug as needed. The short rod is provided with original liquid flow channels that are connected to the original liquid holes (71, 72, 73) and the original liquid inlet (original liquid inlet 710, 720, 730). The original liquid inlet is provided with etc. The original liquid inlet openings are 711, 712, and 713. The original liquid inlet openings are 711, 712, and 713. 713 is connected through an arc-shaped conduit 714, which is connected to the original liquid flow channel communicating with the original liquid hole 71). During use, the two original liquid inlet branches are sealed with plugs as needed;

As shown in Figures 21 and 22, the end cap 5 is an annular structure with an inner cavity and a U-shaped cross-section. The end of the end cap 5 near the fixed bracket is a closed end, and the end near the mixer is an open end. The closed end of the end cap 5 is There are interfaces (51, 52, 53) with adjacent angles of 120°. The interfaces are snap-connected to the original solution inlet on the small fixed bracket (interface 51 is snap-connected to the original solution inlet 410, interface 52 is snap-connected to the original solution inlet 420, and interface 53 is snap-connected to the original solution inlet. The interface (take interface 51 as an example) is equipped with interface branches (511, 512, 513) corresponding to the original liquid inlet branch. The interface branches pass through the end cover and pass through the liquid pipe at the open end of the end cover. Connected to the tapered mixing piece, the end cap is sleeved outside the end face of the mixer through the open end and is interference-connected to protect the liquid pipe;

As shown in Figure 23, the third mixing pipe 3 includes a mounting base and a third cylinder fixedly connected to the mounting base. The four corners of the mounting base are provided with fixing holes corresponding to the fixing hole groups. The mounting base is connected through bolts, mounting base fixing holes and The fixing hole of the bottom plate is fixedly connected to the bottom plate. The third cylinder is sequentially provided with connected throat lumen and tapered lumen. The end of the tapered lumen of the third cylinder is provided with a convex joint that is engaged with the groove of the second mixing tube 2. The end of the throat tube cavity is provided with a protrusion that is engaged with the nozzle 97;

As shown in Figure 24, the intermediate joint 98 has an annular structure. The intermediate joint 98 is provided with a protrusion at the end near the first mixing tube 1 that is engaged with the groove of the first mixing tube 1, and is provided with a protrusion at the end near the second mixing tube 1. The protrusion of the groove of the second mixing tube 2;

As shown in Figure 25, the inlet joint 91 has a tubular structure. The end of the inlet joint 91 near the first mixing pipe 1 is provided with a protrusion that engages with the groove of the first mixing pipe 1, and the other end is provided with a protrusion; the nozzle 97 is One of straight hole nozzles, conical nozzles or spiral nozzles, as shown in Figure 26, the nozzle 97 is provided with a groove near the 3rd end of the third mixing pipe that is engaged with the protrusion of the third mixing pipe;

Before use, first install the lobe-shaped cutting fluid multi-component online mixing mechanism, set the circular lobe mixing plates in sequence according to diameter, and install matching liquid pipe racks on both ends of the circular lobe mixing plates. A circular lobe mixer is formed; the conical lobe mixing plates are arranged in sequence according to the diameter, and matching liquid pipe racks and end caps are installed on the small end faces of the conical lobe mixing plates. The large end surface of the lobe mixing piece is installed with a matching liquid pipe rack to form a cone-shaped lobe mixer; the circular lobe mixer is installed in the first mixing tube 1 and the fixed bracket and the circular wave lobe are installed in the fixed bracket slot. The flap mixer is snap-connected, so that the original liquid hole of the fixed bracket is matched with the component outlet on the first mixer 1; install the conical lobed mixer in the second mixing tube 2 and install the fixed bracket in the fixed bracket groove Connect with the conical lobe mixer so that the original liquid hole of the fixed bracket is matched with the component discharge port on the second mixer 2; then connect the first mixing tube 1, the intermediate joint 98, the second mixing tube 2 and the third The three mixing pipes 3 are connected in sequence, and the transition flow channels (116, 117, 118, 126, 127, 128) on the first mixing pipe 1 are connected with short liquid pipes (9, 982, 983, 984, 9, 986). Connected to the component inlet (216, 217, 218, 226, 227, 228) on the second mixing tube 2, the first mixing tube 1, the second mixing tube 2 and the third mixing tube 3 are installed under the bottom plate 111 The end surface is fixed through the fixing hole, the inlet connector 91 is snap-connected to the first mixing tube 1, and the nozzle 97 is snap-connected to the third mixing tube 3; the syringe pump 120 is installed on the upper end surface of the base plate 111 (on the fixed frame 110), and the injection The pump 120 is connected and collected by the liquid pipe 130 on the side of the bottom plate 111 near the inlet joint 91, and is connected to the transition flow channel (116, 117, 118, 126, 127, 128) of the first mixer 1 and the component inlet respectively;

When in use, the main fluid (compressed air or water) enters the lobe-type cutting fluid multi-component online mixing mechanism through the inlet joint 91, and flows through the first mixing tube 1, the second mixing tube 2, and the third mixing tube 3 in sequence. Flows out through the outlet joint 91; the main fluid is divided by the layered structures of the circular lobe mixer 8 and the conical lobe mixer 6 in the first mixing tube 1 and the second mixing tube 2 respectively, and in the gaps between the layered structures After being mixed with various cutting fluid components, it flows into the subsequent mixing tube, and is finally mixed in the third mixing tube 3; and the cutting fluid components in the syringe pump 120 are quantitatively injected into the first mixing tube through the liquid tube 130 1. The second mixing tube 2 is introduced into the lobe mixer (8, 6) by the first mixing tube 1 and the second mixing tube 2, and is in the same layered structure as the main flow of the lobe mixer (8, 6). body mixing;

For the sake of clarity of description, it is assumed that there are 4 cutting fluid components in the first mixing tube 1 and the second mixing tube 2 at the same time (the 4 cutting fluid components in the first mixing tube 1 are the same as those in the second mixing tube 2). Taking mixing as an example to explain in detail, the mixing principle of other quantities of cutting fluid components is the same as the 4 types; the 4 components in the cutting fluid are original liquid 1, original liquid 2, original liquid 3, and original liquid 4. Since the components of the cutting fluid are respectively The ways of entering the first mixing tube 1 and the second mixing tube 2 are the same, so the components of the two cutting fluids are used to illustrate the way they enter the mixing tube (the original liquid 1 and the original liquid 2 are used to illustrate the way they enter the first mixing tube). 1, use the original liquid 3 and the original liquid 4 to illustrate the way it enters the second mixing tube 2); the original liquid is passed through the liquid pipes by the syringe pump 120 (the original liquid 1 passes through the liquid pipe 1316, the original liquid 2 passes through the liquid pipe 1326, the original liquid 3 passes through The liquid pipe 1336 and the original liquid 4 are introduced into the first mixing tube 1 through the liquid pipe 1346), and the original liquid 1 and the original liquid 2 enter the transition channel of the first mixing tube 1 (the original liquid 1 enters the transition channel 116, and the original liquid 1 enters the transition channel 126) , the original liquid 3 and the original liquid 4 enter the component inlet of the first mixing tube 1 and are introduced into the component outlet (the original liquid 3 is introduced into the component outlet 141, and the original liquid 4 is introduced into the component outlet 131); at this time, the original liquid 3 and the original liquid 4 are introduced from the first mixing tube 1. The component outlets at both ends of tube 1 enter the original liquid hole 71 on the large fixed bracket connected to it (the original liquid 3 enters the fixed bracket 7 near the 98 end of the middle joint, and the original liquid 4 enters the fixed bracket 7 near the 91 end of the inlet joint); and The original liquid 1 and the original liquid 2 enter the component inlet of the second mixing tube through the transition channel 116 and the short liquid tube 9 (the original liquid 1 enters the component inlet 216, The flow from the transition channel 126 and the short liquid tube 984 of the original liquid 2 enters the component inlet 226), and is then introduced into the component outlets at both ends of the second mixing tube 2 into the original liquid holes on the fixed bracket connected thereto (the original liquid 1 is introduced The component outlet 211 enters the original liquid hole 71 on the large fixed bracket 7, and the original liquid 2 is introduced into the component outlet 221 and enters the original liquid hole 41 on the small fixed bracket 4). At this time, the subsequent mixing process in the first mixing tube 1 is the same as that from the first mixing tube 1. The process and principle of mixing the original solution hole 71 on the large fixed bracket 7 in the second mixing tube 2 into the lobe mixer are the same. Therefore, only the subsequent mixing in the second mixing tube 2 will be explained. As shown in Figure 27, the original solution 2 It flows into the original liquid inlet through the original liquid hole conduit in the small fixed bracket 4 (a kind of original liquid is introduced into the fixed bracket by the original liquid hole conduit and is connected with the conical lobe mixing piece 6, the conical lobe mixing piece 67, and the conical lobe mixing piece 68. Among the corresponding three raw liquid inlets, here we take the raw liquid inlet corresponding to the conical lobe mixing piece 6 as an example. Raw liquid 1 flows into the raw liquid inlet 710, and raw liquid 2 flows into the raw liquid inlet 410. Since there are three raw liquid inlet branches that need to be used. The plug seals two of them (the original liquid inlet 410 has three original liquid inlet openings 411, 412 and 413. Use the plug to block two of them 412 and 413 to allow the original liquid 2 to flow out from the original liquid inlet opening 411; the original liquid inlet 710 There are three raw liquid inlet branches 711, 712 and 713. Use plugs to block two of them 711 and 713 so that the raw liquid 1 flows out from the raw liquid inlet branch 712). The raw liquid flows directly from the cone through the diversion of the connecting liquid pipe 171. The large component inlet hole 632 on the large conical end face 63 of the conical lobe mixing piece enters the conical lobe mixing piece 6, and the raw liquid 2 enters the interface 51 of the end cover 5, and passes through the interface corresponding to the original liquid inlet branch 411. The branch port 411 enters the interface branch port 511 and enters the conical lobe mixing plate 6 from the small component inlet hole 621 on the small tapered end face 62 of the conical lobe mixing plate through the diversion of the connecting liquid pipe 173; the original liquid 1 The flow principle in the conical lobe mixing piece 6 is the same, but the direction is opposite. The flow process in the conical lobe mixing piece 6 is described in detail below with the raw liquid 2; the raw liquid 2 flows through the component pipe to the conical large end surface 63 There is a large component inlet hole 631 on the top, and the small component inlet hole 631 is connected to the component large inlet hole 635 on the same tapered large end face 63, which is three components apart from the large component inlet hole 631 (the connecting liquid tube is connected to the component large inlet hole 631). The nozzle connected to the large inlet hole 631 is nozzle 1711, and the nozzle connected to the large inlet hole 635 is nozzle 1712). In the same way, the connecting liquid pipes are respectively connected to the tapered small end face 62 and the tapered large end face. 63 connection, so that the original liquid 2 flows from the nozzle 1711 to the nozzle 1712, bypassing the three component pipes (the three bypassed component pipes are the original liquid 1, the original liquid 3, and the original liquid 4), and communicates with the nozzle 1712 The component pipe flows into the tapered small end face 62, bypasses the three component pipes and flows from the nozzle 1713 to the nozzle 1714, and then flows from the component pipe connected to the nozzle 1714 into the nozzle 1715 on the tapered large end face 63 And sequentially flows through the nozzle 1716, nozzle 1717, nozzle 1718, nozzle 1719, nozzle 1720, until the flow reaches the nozzle 1721 and is sealed by the plug. During this process, the original liquid 2 continuously flows from the component pipe. It seeps out from the micropores of the mixing piece and mixes evenly with the main fluid in the gaps of the layered structure of the conical lobe mixer.

Claims (4)

1. The lobe cutting fluid multicomponent on-line mixing mechanism is characterized by comprising a fixing frame, wherein a staggered injection pump is arranged on a bottom plate of the fixing frame, an inlet joint, a first mixing pipe, an intermediate joint, a second mixing pipe, a third mixing pipe and a nozzle are sequentially arranged below the bottom plate of the fixing frame, the inlet joint, the first mixing pipe, the intermediate joint, the second mixing pipe, the third mixing pipe and the nozzle are sequentially clamped, the first mixing pipe, the second mixing pipe and the third mixing pipe are fixedly connected with the bottom plate of the fixing frame, a circular lobe mixer and a large fixing bracket for supporting the lobe of the circular mixer are arranged in the first mixing pipe, a conical lobe mixer and a large fixing bracket and a small fixing bracket for supporting the conical lobe mixer are arranged in the second mixing pipe, the injection pump is connected with the first mixing pipe through a liquid pipe,

the circular lobe mixer comprises circular lobe mixing sheets sleeved in sequence from large to small according to the diameter, two ends of each circular lobe mixing sheet are provided with circular end faces clamped with a large fixing support, component pipelines are arranged in wave crests and wave troughs of the circular lobe mixing sheets, component pipelines form component inlets on the circular end faces of the circular lobe mixing sheets, the component pipelines are provided with mixing sheet micropores penetrating through the side walls of the circular lobe mixing sheets, the component inlets on the corresponding positions of the circular end faces and the large fixing support are connected with the large fixing support through connecting liquid pipes, other component inlets are connected with the component pipelines through connecting liquid pipes at intervals to form roundabout circulation flow channels in a head-to-tail mode and are sealed at the tail ends through plugs,

the conical lobe mixer comprises conical lobe mixing pieces sleeved in sequence from large to small according to the diameter, the diameter of the conical lobe mixing pieces close to the middle joint end is a conical large end face, the diameter of the conical lobe mixing pieces close to the third mixing pipe end is a conical small end face, the conical small end face of the conical lobe mixing pieces is provided with end covers, component pipelines are arranged in wave crests and wave troughs of the conical lobe mixing pieces, component holes are formed in the conical small end face and the conical large end face respectively, mixing piece micropores penetrating through the side walls of the conical lobe mixing pieces are formed in the component pipelines, the component holes in the corresponding positions of the conical end faces and the end covers or the large fixing brackets are connected with the corresponding end covers or the large fixing brackets through connecting liquid pipes, the component pipelines connected with the other component holes through connecting liquid pipe intervals are connected end to form roundabout circulation channels and sealed at the tail ends through plugs, the end covers are clamped with the small fixing brackets, and the conical large end faces are clamped with the large fixing brackets.

2. The on-line mixing mechanism for lobe-shaped cutting fluid multicomponent is characterized in that the first mixing tube comprises a mounting seat fixedly connected with the bottom plate and a first barrel fixedly connected with the mounting seat, a transition flow passage axially arranged along the mixing tube is arranged in the mounting seat, the transition flow passage is connected with the injection pump through a liquid tube at the side of the mounting seat near the inlet joint, and a component inlet is arranged on the side wall of the mounting seat near the inlet joint; the first cylinder is of a hollow tubular structure, a first mixing cavity is arranged in the first cylinder, two ends of the inner wall of the first cylinder are provided with component outlets communicated with component inlets, and the component inlets are connected through a liquid pipe injection pump; the first cylinder body is provided with a groove which is clamped with the inlet joint end and a fixed bracket groove for placing the fixed bracket from outside to inside in sequence, and the near-middle joint end is provided with a groove which is clamped with the middle joint and a fixed bracket groove for placing the fixed bracket from outside to inside in sequence; the component outlet is arranged on the fixed bracket groove.

3. The on-line mixing mechanism for lobe-shaped cutting fluid multicomponent according to claim 1, wherein the second mixing tube comprises a mounting seat fixedly connected with the bottom plate and a second cylinder fixedly connected with the mounting seat, and a component inlet matched with a transition flow passage in the mounting seat of the first mixing tube is arranged on the side wall of the mounting seat near the middle joint; the second cylinder is of a tubular structure and internally provided with a conical inner cavity, two ends of the inner wall of the second cylinder are provided with component outlets communicated with the component inlets, and the component inlets of the second mixer are connected with the transition flow passage of the first mixer through a short liquid pipe; the second cylinder body is provided with a groove which is clamped with the third mixing pipe, a small fixing bracket groove for placing a small fixing bracket and an end cover groove for placing an end cover in sequence from outside to inside near the third mixing pipe end, and a groove which is clamped with the middle joint and a large fixing bracket groove for placing a large fixing bracket are sequentially arranged at the near-middle joint end from outside to inside; the component outlet is provided with a corresponding fixed bracket groove.

4. The multi-component on-line mixing mechanism for the lobe-shaped cutting fluid according to claim 1, wherein the large fixing support comprises an outer ring, an inner ring concentric with the outer ring, and a short rod connecting the outer ring and the inner ring, an included angle between the connected short rods is 120 degrees, the corresponding position of the lobe mixer of the large fixing support is provided with a lobe-shaped clamping ring matched with the lobe mixing piece, the end face of the lobe-shaped clamping ring and the end face of the lobe mixing piece are clamped with the fixed lobe mixing piece, the corresponding position of the short rod on the lobe-shaped clamping ring is provided with a stock solution inlet, the corresponding position of the short rod on the circular ring in the vertical direction is provided with a stock solution hole, the stock solution inlet is communicated with the stock solution hole, and the stock solution inlet is internally provided with equidistant stock solution inlet ports.