Multi-channel rotary cutting valve and corresponding rotary cutting control method

Abstract

The invention provides a multi-channel rotary-cut valve and a corresponding rotary-cut control method. The multi-channel rotary-cut valve comprises a valve shell, a rotary driving mechanism, a rotary shaft, a rotary-cut piece, an elastic piece, a deflector rod and a microswitch. The rotating shaft rotationally penetrates through the valve shell, an output hole is formed in the other end of the rotating shaft, and a plurality of main input holes are formed in the valve shell. The rotary cutting piece is slidably connected to the periphery of the rotating shaft in a sleeving mode, the rotary cutting piece covers the multiple main input holes, transfer holes are formed in the rotary cutting piece, and the rotary cutting piece rotates to enable the transfer holes to be switched to be in butt joint with the different main input holes. The driving lever is fixedly connected with the rotating shaft, and the microswitch is located on the rotating track of the driving lever. Before the rotary cutting piece of the multi-channel rotary cutting valve rotates and is switched to be in butt joint with another main input hole every time, the microswitch can be extruded and triggered through the rotating deflector rod, namely, the rotary driving mechanism returns to the original point at the moment, the purpose of original point calibration is achieved, errors generated in the multiple rotary cutting rotation processes can be eliminated, the transfer hole and the main input hole are in butt joint accurately, and the accuracy of the rotary cutting operation is improved. And fluid is stably conveyed.

Description

Technical Field

[0001] The present invention relates to the field of valves, and in particular to a multi-channel rotary cutting valve and a corresponding rotary cutting control method. Background Art

[0002] The rotary cutting valve is a valve that switches different input ends to connect with corresponding output ends by rotation. Most rotary cutting valves in the prior art use a stepper motor to drive the rotary cutting valve to switch multiple channels. Since the stepper motor does not have a signal feedback device like a servo motor, the motor is prone to getting stuck and losing steps during rotation. At this time, since there is no return to origin calibration signal, the motor will have an inaccurate movement problem, which will affect the connection between the main input hole and the output hole, and affect the normal use of the rotary cutting valve.

[0003] Therefore, it is necessary to provide a multi-channel rotary cutting valve and a corresponding rotary cutting control method to solve the above technical problems. Summary of the invention

[0004] The present invention provides a multi-channel rotary cutting valve and a corresponding rotary cutting control method to solve the problem that the motor of the rotary cutting valve in the prior art has inaccurate movement, thereby affecting the docking of the main input hole and the output hole and affecting the normal use of the rotary cutting valve.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a multi-channel rotary cutting valve, which includes: a valve housing, a rotary driving mechanism, a rotating shaft, a rotary cutting piece, an elastic member, a lever, and a micro switch;

[0006] The rotating shaft rotates and penetrates the valve housing, one end of the rotating shaft is connected to the output end of the rotating drive mechanism, the other end of the rotating shaft is provided with an output hole communicating with the inner and outer spaces of the valve housing, and the valve housing is provided with a plurality of main input holes communicating with the inner and outer spaces of the valve housing;

[0007] The rotary slice is located in the valve housing, the rotary slice is slidably sleeved on the outer periphery of the rotating shaft, and the rotary slice is in transmission cooperation with the rotating shaft, the rotary slice covers a plurality of the main input holes, a transfer hole is provided on the rotary slice, and the rotary slice rotates so that the transfer hole switches to dock with different main input holes, a limiting convex portion is provided on the outer periphery of the rotating shaft, and the elastic member is located between a side of the rotary slice away from the input port and the limiting convex portion;

[0008] The micro switch is fixedly arranged in the valve housing, a fixing column is arranged on the inner wall of the valve housing, the axial direction of the fixing column is consistent with the axial direction of the rotating shaft, a fixing hole for plugging with the fixing column is arranged on the micro switch, the lever is fixedly connected with the rotating shaft, and the micro switch is located on the rotation track of the lever.

[0009] In the present invention, the lever includes an annular member and a rod body arranged on the circumferential side of the annular member, the annular member is sleeved on the rotating shaft, a first positioning groove is arranged on the inner side of the annular member near the rod body, both ends of the first positioning groove penetrate the annular member along the axial direction of the annular member, a second positioning groove is arranged on the inner side of the annular member away from the rod body, both ends of the second positioning groove penetrate the annular member along the radial direction of the annular member, and a first positioning block for positioning and cooperating with the first positioning groove and a second positioning block for positioning and cooperating with the second positioning groove are arranged on the circumference of the rotating shaft.

[0010] In the present invention, the multi-channel rotary cutting valve also includes a water pass plate, which is arranged between the rotary cutting piece and the inner wall of the valve shell where the main input hole is located. The water pass plate is provided with first through holes corresponding to the multiple main input holes one by one, and the rotary cutting piece and the water pass plate are made of ceramic material.

[0011] Wherein, a sealing gasket is arranged between the water-passing plate and the inner wall of the valve housing where the main input hole is located, and the sealing gasket is provided with second through holes corresponding to the plurality of main input holes one by one.

[0012] Furthermore, the multi-channel rotary cutting valve also includes a Hall switch, a magnet bracket, and a magnet. The Hall switch is arranged between the sealing gasket and the inner wall of the valve housing where the main input hole is located. A plurality of magnets are embedded in the magnet bracket. A plurality of magnets are distributed in a ring around the axial center of the magnet bracket. The magnet bracket is located between the rotary cutting piece and the water passing piece. The water passing piece is provided with an inner hole, and the magnet bracket is located in the inner hole.

[0013] Optionally, a connecting column is provided on the magnet bracket, and a connecting hole which is positioned and connected to the connecting column is provided on the spin slice.

[0014] Optionally, a clamping rod is provided on the magnet bracket, and a clamping hole for plugging with the clamping rod is provided on the rotary slice.

[0015] In the present invention, one end of the transfer hole and the output hole are connected via a connecting pipe;

[0016] A convex tube is protruded from one side of the rotating shaft, and the output hole extends into the convex tube;

[0017] The connecting tube is connected to the convex tube and the transfer hole by bending, or the convex tube is bent, and the connecting tube is in a straight strip shape to connect the convex tube and the transfer hole.

[0018] In the present invention, the multi-channel rotary cutting valve further comprises at least one secondary input hole communicating with the inner and outer spaces of the valve housing, the rotary cutting piece covers the secondary input hole, the water passing piece is provided with a third through hole corresponding to the secondary input hole, and the sealing gasket is provided with a fourth through hole corresponding to the secondary input hole;

[0019] A connecting hole with a long strip-shaped radial cross section is provided on one side of the transfer hole on the rotary slice close to the water-passing slice, the radial extension direction of the connecting hole is consistent with the radial direction of the rotary slice, the radial cross sections of the first through hole and the second through hole are both long strip-shaped, and the radial extension directions of the first through hole and the second through hole are consistent with the circumferential direction of the rotary slice, and the third through hole and part of the first through hole are located on the same radial line of the water-passing slice;

[0020] The spin slice includes a single input position and a multiple input position on the rotation trajectory. When the spin slice is located at the single input position, the connecting hole is connected to the first through hole. When the spin slice is located at the multiple input position, the connecting hole is connected to the first through hole and the third through hole at the same time.

[0021] In the present invention, the valve housing comprises a main housing, a valve cover and a fixing bracket, one end of the main housing is an opening, the valve cover is closed and arranged on the opening, the output hole and the plurality of main input holes are located on the end surface of the valve cover, and the axis of the main input hole is parallel to the axis of the rotating shaft;

[0022] The rotary drive mechanism is located at one end of the main housing away from the opening, the rotary drive mechanism is connected to the main housing via the fixing bracket, and the lever and the micro switch are arranged between the main housing and the fixing bracket.

[0023] In the present invention, the valve housing comprises a main housing, a valve cover, and a fixing bracket, one end of the main housing is an opening, the valve cover is closed and arranged on the opening, a plurality of main input holes are arranged on the peripheral side surface of the valve cover, and the axis of the main input hole is perpendicular to the axis of the rotating shaft;

[0024] The valve cover is located between the rotary drive mechanism and the main housing, the rotary drive mechanism is connected to the valve cover through the fixed bracket, and the lever and the micro switch are arranged between the valve cover and the fixed bracket;

[0025] A fixing groove is provided on the inner side of the valve housing, and an output adapter hole communicating with the inner and outer spaces of the valve housing is provided in the fixing groove. One end of the rotating shaft where the output hole is located is rotatably connected in the fixing groove, and the output hole is butted against the output adapter hole. A sealing ring is sleeved on the portion of the rotating shaft located in the fixing groove.

[0026] The present invention also includes a rotary cutting control method for controlling the operation of the multi-channel rotary cutting valve using a host control panel, and the rotary cutting control method includes the following steps:

[0027] Step S11: Multiple main input holes are all numbered accordingly. When the host control board controls the rotation drive mechanism to drive the transfer hole to dock with the main input hole with a set number, the set number is stored as the current number information;

[0028] Step S12: the host control board receives the target number information of the main input hole to be connected input by the user, and the host control board compares the target number information with the current number information;

[0029] Step S13: If the target number information is consistent with the current number information, a peeling completion signal is output;

[0030] If the target number information is inconsistent with the current number information, the host control board controls the rotary drive mechanism to drive the rotary shaft to rotate, driving the lever to rotate until it contacts the micro switch, so that the micro switch sends a homing signal to the host control board for the rotary drive mechanism to return to the origin. After receiving the homing signal, the host control board controls the rotary drive mechanism to drive the rotary shaft to rotate, so that the rotary slice rotates to the position where the transfer hole and the main input hole corresponding to the target number information are docked, and then outputs a rotary cutting completion signal.

[0031] In the present invention, the step S13 further includes:

[0032] Step S21: if the target number information is inconsistent with the current number information, the host control board analyzes the difference between the target number information and the current number information;

[0033] If the difference between the numbers is less than or equal to the set value, the host control board controls the rotary drive mechanism to drive the rotary shaft to rotate, so that the rotary slice is rotated to the position where the intermediate hole and the main input hole corresponding to the target number information are connected, and then outputs a rotary cutting completion signal;

[0034] If the difference between the numbers is greater than the set value, the host control board controls the rotary drive mechanism to drive the rotary shaft to rotate, driving the lever to rotate until it contacts the micro switch, so that the micro switch sends a homing signal to the host control board for the rotary drive mechanism to return to the origin. After receiving the homing signal, the host control board controls the rotary drive mechanism to drive the rotary shaft to rotate, so that the rotary slice rotates to the position where the transfer hole and the main input hole corresponding to the target number information are connected, and then outputs a rotary cutting completion signal.

[0035] Compared with the prior art, the present invention has the following beneficial effects: the multi-channel rotary cutting valve of the present invention is provided with a micro switch, and before the rotary cutting piece is switched to another main input hole for docking each time, the micro switch can be triggered by squeezing the rotating lever, and then the host control board receives the homing signal of the rotary drive mechanism returning to the origin, which plays the role of origin calibration. After calibration, the rotary drive mechanism can accurately drive the rotary cutting piece to rotate to the required position, and can eliminate the error in the process of multiple rotary cutting rotations, so that the transfer hole and the main input hole can be accurately docked, and the fluid can be stably transported. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0037] Figure 1 It is a schematic structural diagram of a first embodiment of a multi-channel rotary cutting valve of the present invention.

[0038] Figure 2 It is a schematic diagram of the exploded structure of the multi-channel rotary cutting valve of the first embodiment.

[0039] Figure 3 It is a schematic diagram of the local structure of the micro switch of the multi-channel rotary cutting valve of the first embodiment.

[0040] Figure 4 It is a schematic diagram of the partial exploded structure of the lever and the rotating shaft of the multi-channel rotary cutting valve of the first embodiment.

[0041] Figure 5 It is a cross-sectional view of the connecting pipe bending connecting the convex pipe and the transfer hole of the multi-channel rotary cutting valve of the first embodiment.

[0042] Figure 6 This is a cross-sectional view of the multi-channel rotary cutting valve of the first embodiment, in which the connecting pipe is in the shape of a straight strip connecting the convex pipe and the transfer hole.

[0043] Figure 7 It is a schematic structural diagram of a second embodiment of a multi-channel rotary cutting valve of the present invention.

[0044] Figure 8 It is a schematic diagram of the exploded structure of the multi-channel rotary cutting valve of the second embodiment.

[0045] Fig. 9 It is a schematic diagram of the partial structure of the micro switch of the multi-channel rotary cutting valve of the second embodiment.

[0046] Fig.10 It is a cross-sectional view of the multi-channel rotary cutting valve of the second embodiment.

[0047] Fig.11It is a flow chart of the rotary cutting control method of the present invention.

[0048] Fig.12 It is a schematic structural diagram of the rotary slice and water-pass slice of the third embodiment. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0050] The directional terms mentioned in the present invention are only used to refer to the directions of the drawings. The directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0051] The terms "first", "second", etc. in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be used as a limitation on the order of precedence.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, the connection can be a detachable connection or a connection of an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The rotary cutting valve in the prior art uses a stepper motor as a drive. Since the stepper motor does not have a signal feedback device like a servo motor, the motor is prone to getting stuck and losing steps during rotation. At this time, since there is no return to origin calibration signal, the motor will have an inaccurate movement problem, which will affect the docking of the main input hole and the output hole, affecting the normal use of the rotary cutting valve.

[0054] In addition, the rotary cut valve of the prior art is provided with a common volume cavity, the input end and the output end are connected through the common volume cavity, all fluids will pass through the common volume cavity and some fluids will be stored in the common volume cavity. However, over time, some fluids will spoil and deteriorate. For example, when the rotary cut valve is used in an automatic cooking machine, various seasonings are easily mixed together and remain in the volume cavity. Over time, bacteria are easily bred and moldy, thus affecting human health.

[0055] The following is a first embodiment of a multi-channel rotary cutting valve provided by the present invention that can solve the above technical problems.

[0056] Please refer to Figure 1-Figure 5 In the figures, units with similar structures are represented by the same reference numerals.

[0057] The present embodiment provides a multi-channel rotary cutting valve, which includes: a valve housing 11, a rotary driving mechanism 12, a rotary shaft 13, a rotary cutting piece 15, an elastic member 17, a lever 1B, and a micro switch 1A.

[0058] The rotating shaft 13 rotates and penetrates the valve housing 11, and one end of the rotating shaft 13 is connected to the output end of the rotating drive mechanism 12. The other end of the rotating shaft 13 is provided with an output hole 131 connected to the inner and outer spaces of the valve housing 11, and the valve housing 11 is provided with a plurality of main input holes 141 connected to the inner and outer spaces of the valve housing 11. The rotating drive mechanism 12 may be a motor, which drives the rotating shaft 13 to rotate.

[0059] The rotary slice 15 is located in the valve housing 11. The rotary slice 15 is slidably sleeved on the outer periphery of the rotating shaft 13, and the rotary slice 15 is transmission-coordinated with the rotating shaft 13. The rotary slice 15 and the rotating shaft 13 rotate synchronously. The rotary slice 15 covers multiple main input holes 141. A transfer hole 151 is provided on the rotary slice 15. The rotation of the rotary slice 15 enables the transfer hole 151 to switch and dock with different main input holes 141, thereby switching different main input holes 141 to be connected with the output hole 131.

[0060] The outer periphery of the rotating shaft 13 is provided with a limiting convex portion 132, and the elastic member 17 is located between the side of the rotating section 15 away from the input port and the limiting convex portion 132. The elastic member 17 is used to squeeze the rotating section 15 so that the rotating section 15 keeps closing the other main input holes 141 that are not connected to the transfer hole 151. The elastic member 17 in this embodiment is a spring, and the rotating section 15 includes a plate body and a column body. The elastic member 17 is sleeved on the outer periphery of the column body of the rotating section 15.

[0061] Please refer to Figure 3 , the micro switch 1A is fixedly arranged in the valve housing 11, and a fixing column is arranged on the inner wall of the valve housing 11. The axial direction of the fixing column is consistent with the axial direction of the rotating shaft 13, and a fixing hole 1A1 for plugging with the fixing column is arranged on the micro switch 1A. The lever 1B is fixedly connected to the rotating shaft 13, and the micro switch 1A is located on the rotation track of the lever 1B. Before the rotary slice 15 is switched to another main input hole 141 for docking each time, the rotating shaft 13 rotates to drive the lever 1B to rotate, and the lever 1B squeezes and triggers the micro switch 1A. At this time, the host control board receives the homing signal of the rotary drive mechanism 12 returning to the origin, which has the function of origin calibration. After calibration, the rotary drive mechanism 12 can accurately drive the rotary slice 15 to rotate to the required position, and can eliminate the error in the process of multiple rotary cutting rotations, so that the transfer hole 151 is accurately docked with the main input hole 141, and the fluid is stably transported.

[0062] Please refer to Figure 4In this embodiment, the lever 1B includes an annular member 1B1 and a rod body 1B2 arranged on the circumferential side of the annular member 1B1. The annular member 1B1 is sleeved on the rotating shaft 13. A first positioning groove 1B3 is arranged on the inner side of the annular member 1B1 near the rod body 1B2. Both ends of the first positioning groove 1B3 penetrate the annular member 1B1 along the axial direction of the annular member 1B1. A second positioning groove 1B4 is arranged on the inner side of the annular member 1B1 away from the rod body 1B2. Both ends of the second positioning groove 1B4 penetrate the annular member 1B1 along the radial direction of the annular member 1B1. A first positioning block 133 for positioning and cooperating with the first positioning groove 1B3 and a second positioning block 134 for positioning and cooperating with the second positioning groove 1B4 are arranged on the circumference of the rotating shaft 13. The first positioning groove 1B3 penetrating the ring member 1B1 along the axial direction of the ring member 1B1 is set at a position close to the rod body 1B2, while the second positioning groove 1B4 only penetrates part of the ring member 1B1 along the radial direction of the ring member 1B1. The overall strength of the ring member 1B1 is good, and the connection stability with the rotating shaft 13 is high.

[0063] Please refer to Figure 2 The multi-channel rotary cutting valve of this embodiment also includes a water pass plate 18, which is arranged between the rotary cutting piece 15 and the inner wall of the valve shell 11 where the main input hole 141 is located. The water pass plate 18 is provided with first through holes 181 corresponding to the multiple main input holes 141 one by one. The rotary cutting piece 15 and the water pass plate 18 are made of ceramic material, preferably a ceramic material with high hardness and high wear resistance, which can well ensure the sealing of the rotary cutting part. The rotary cutting piece 15 and the water pass plate 18 have a long rotation switching life and will not rust.

[0064] Furthermore, a sealing gasket 19 is provided between the water-passing plate 18 and the inner wall of the valve housing 11 where the main input holes 141 are located, and the sealing gasket 19 is provided with second through holes 191 corresponding to the plurality of main input holes 141 one by one.

[0065] Preferably, convex rings are provided on both sides of the sealing gasket 19 along the second through hole 191 , and the convex rings are positioned and fitted into the main input hole 141 or into the first through hole 181 .

[0066] Please refer to Figure 2 The multi-channel rotary cutting valve of this embodiment also includes a Hall switch 1E, a magnet holder 1C, and a magnet 1D. The Hall switch 1E is arranged between the sealing gasket 19 and the inner wall of the valve housing 11 where the main input hole 141 is located. A plurality of magnets 1D are embedded in the mounting hole 1C1 of the magnet holder 1C. The plurality of magnets 1D are distributed in a ring around the axial center of the magnet holder 1C. The magnet holder 1C is located between the rotary cutting piece 15 and the water passing piece 18. The water passing piece 15 is provided with an inner hole, and the magnet holder 1C is located in the inner hole.

[0067] Among them, the magnet bracket 1C is provided with a clamping rod 1C2, and the rotary slice 15 is provided with a clamping hole 152 plugged with the clamping rod 1C2. The coordination of the clamping rod 1C2 and the clamping hole 152 enables the magnet bracket 1C to form a stable connection with the rotary slice 15. The magnet bracket 1C will rotate with the rotary slice 15, so that during the rotation of the rotary slice 15, different magnets 1D will be sensed by the Hall switch 1E one by one. In this way, feedback can be given on which input hole 141 the transfer hole 151 is specifically docked with.

[0068] Please refer to Figure 2 , Figure 5 and Figure 6 The multi-channel rotary cutting valve in this embodiment also includes a connecting pipe 16, which connects the transfer hole 151 and the output hole 131, and the other end of the transfer hole 151 is connected to the main input hole 141. The fluid can be better output through the connecting pipe 16, reducing residues, reducing bacterial growth and mildew.

[0069] A convex tube 1313 is protruded from one side of the rotating shaft 13 , and the output hole 131 extends into the convex tube 1313 .

[0070] Please refer to Figure 5 Optionally, the output hole 131 includes an axial hole section 1311 parallel to the axis of the rotating shaft 13, and a radial hole section 1312 perpendicular to the axis of the rotating shaft 13. The connecting pipe 16 is a hose, and the connecting pipe 16 is connected to the convex pipe 1313 and the transfer hole 151 by bending. The connecting pipe 16 is specifically connected to the axial hole section 1311 and the transfer hole 151 by bending.

[0071] Please refer to Figure 6 Optionally, the output hole 131 includes an axial hole segment parallel to the axis of the rotating shaft 13, and a radial hole segment perpendicular to the axis of the rotating shaft 13. The rotating shaft 13 is provided with an axial hole segment, and the convex tube 1313 is provided with an axial hole segment and a radial hole segment. The convex tube 1313 is bent, and the connecting tube 16 is a straight strip connecting the convex tube 1313 and the transfer hole 151.

[0072] The output hole 131 includes an axial hole section 1311 parallel to the axis of the rotating shaft 13 and a radial hole section 1312 perpendicular to the axis of the rotating shaft 13. The connecting pipe 16 is a hose.

[0073] It should be noted that in this embodiment, the output hole 131 , the main input hole 141 and the transfer hole 151 are all extended with a tube body, which is convenient for connecting with the corresponding connecting pipe, input pipe or output pipe. The radial hole section 1312 is located in the tube body of the output hole 131 .

[0074] Please refer to Figure 1-Figure 3In this embodiment, the valve housing 11 includes a main housing, a valve cover 14 (the reference numeral 11 also refers to the main housing), and a fixed bracket 1F. One end of the main housing is an opening, and the valve cover 14 is closed and arranged on the opening. The valve cover 14 is arranged on an end of the valve housing 11 away from the rotation drive mechanism 12. The output hole 131 and a plurality of main input holes 141 are located on the end surface of the valve cover 14. The plurality of main input holes 141 are annularly distributed on the circumference of the output hole 131, and the axis of the main input hole 141 is parallel to the axis of the rotating shaft 13.

[0075] The rotary drive mechanism 12 is located at one end of the main housing away from the opening. The rotary drive mechanism 12 is connected to the main housing through a fixed bracket 1F. The lever 1B and the micro switch 1A are arranged between the main housing and the fixed bracket 1F.

[0076] The working principle of the multi-channel rotary cutting valve with independent water outlet pipelines of this embodiment is as follows: the rotary drive mechanism 12 drives the rotary shaft 13 to rotate, and the rotary shaft 13 drives the rotary cutting piece 15 to rotate, so that the transfer hole 151 switches to dock with different main input holes 141, thereby switching different main input holes 141 to connect with the output hole 131. Different main input holes 141 can be used to transport different set fluids. Among them, the Hall switch 1E counts and feedbacks the induction of the magnet 1D, and it can be obtained which input hole 141 the transfer hole 151 is specifically switched to dock with. The fluid is transported between the transfer hole 151 and the output hole 131 through the connecting tube 16 to realize multi-channel switching.

[0077] Before each peeling, the rotary drive mechanism 12 drives the rotating shaft 13 to rotate and drives the lever 1B to rotate until it contacts the micro switch 1A, and calibrates the initial position. After calibration, the peeling section 15 rotates to the required position.

[0078] Please refer to Fig.11 The present invention also includes a rotary cutting control method for controlling the operation of the multi-channel rotary cutting valve of this embodiment using a host control panel, wherein the plurality of main input holes 141 are numbered accordingly, and the rotary cutting control method includes the following steps:

[0079] Step S11: When the host control panel controls the rotation drive mechanism 12 to drive the transfer hole 151 to dock with the main input hole 141 with a set number, the set number is stored as the current number information. That is, the current number information can feedback which main input hole 141 the current transfer hole 151 is docking with.

[0080] Step S12: the host control panel receives the target number information of the main input hole 141 that needs to be connected input by the user, that is, the user needs to open a set main input hole 141 to connect with the output hole 131 to transport the required fluid, and the host control panel compares the target number information with the current number information.

[0081] Step S13: If the target number information is consistent with the current number information, it means that the main input hole 141 required by the user has been connected to the output hole 131, and then a peeling completion signal is output. That is, the user turns on the corresponding output switch to output the fluid required by the user.

[0082] If the target number information is inconsistent with the current number information, the host control board controls the rotary drive mechanism 12 to drive the rotary shaft 13 to rotate, driving the lever 1B to rotate until it contacts the micro switch 1A, so that the micro switch 1A sends a homing signal to the host control board to return the rotary drive mechanism 12 to the origin, which has the effect of origin calibration. After receiving the homing signal, the host control board controls the rotary drive mechanism 12 to drive the rotary shaft 13 to rotate, so that the rotary cutting piece rotates to the position where the transfer hole 151 is connected to the main input hole 141 corresponding to the target number information, and then outputs a rotary cutting completion signal. In this way, errors in multiple rotary cutting rotations can be eliminated, so that the transfer hole 151 is accurately connected to the main input hole 141, and the fluid is transported stably.

[0083] In this embodiment, step S13 may further include:

[0084] Step S21: If the target number information is inconsistent with the current number information, the host control board analyzes the difference between the target number information and the current number information.

[0085] If the difference between the numbers is less than or equal to the set value, that is, the main input hole 141 corresponding to the target number information is relatively close to the main input hole 141 that is connected to the current transfer hole 151, and the error of directly controlling the rotation of the rotary slice 15 is small, the host control board controls the rotation drive mechanism 12 to drive the rotation shaft 13 to rotate, so that the rotary slice 15 rotates to the position where the transfer hole 151 and the main input hole 141 corresponding to the target number information are connected, and then outputs a rotary cutting completion signal.

[0086] If the difference between the numbers is greater than the set value, that is, the main input hole 141 corresponding to the target number information is far away from the main input hole 141 that is docked with the current transfer hole 151, the rotary drive mechanism 12 needs to control the rotary slice 15 to rotate a larger stroke, and the error will be relatively large. Then the host control board controls the rotary drive mechanism 12 to drive the rotary shaft 13 to rotate, driving the lever 1B to rotate until it contacts the micro switch 1A, so that the micro switch 1A sends a homing signal to the host control board to return the rotary drive mechanism 12 to the origin, and calibrates the origin of the rotary drive mechanism 12. After receiving the homing signal, the host control board controls the rotary drive mechanism 12 to drive the rotary shaft to rotate, so that the rotary slice rotates to the position where the transfer hole 151 docks with the main input hole 141 corresponding to the target number information, and then outputs a rotary cutting completion signal.

[0087] Through the method of step S21, the working efficiency of the rotary cutting control method can be further improved, while ensuring that the transfer hole 151 and the main input hole 141 are accurately connected to each other and the fluid is stably transported.

[0088] The following is a second embodiment of a multi-channel rotary cutting valve provided by the present invention that can solve the above technical problems. The main difference between the second embodiment and the first embodiment is that the main input hole and the output hole are arranged differently, and the structure of the magnet bracket is different. The other structural principles are basically the same, and the same parts will not be repeated in this embodiment.

[0089] Please refer to Figure 7-10 The present embodiment provides a multi-channel rotary cutting valve, which includes: a valve housing 11, a rotary driving mechanism 12, a rotary shaft 13, a rotary cutting piece 15, an elastic member 17, a lever 1B, and a micro switch 1A.

[0090] The rotating shaft 13 rotates and penetrates the valve housing 11, and one end of the rotating shaft 13 is connected to the output end of the rotating drive mechanism 12. The other end of the rotating shaft 13 is provided with an output hole 131 connected to the inner and outer spaces of the valve housing 11, and the valve housing 11 is provided with a plurality of main input holes 141 connected to the inner and outer spaces of the valve housing 11. The rotating drive mechanism 12 may be a motor, which drives the rotating shaft 13 to rotate.

[0091] The rotary slice 15 is located in the valve housing 11. The rotary slice 15 is slidably sleeved on the outer periphery of the rotating shaft 13, and the rotary slice 15 is transmission-coordinated with the rotating shaft 13. The rotary slice 15 and the rotating shaft 13 rotate synchronously. The rotary slice 15 covers multiple main input holes 141. A transfer hole 151 is provided on the rotary slice 15. The rotation of the rotary slice 15 enables the transfer hole 151 to switch and dock with different main input holes 141, thereby switching different main input holes 141 to be connected with the output hole 131.

[0092] The outer periphery of the rotating shaft 13 is provided with a limiting convex portion 132, and the elastic member 17 is located between the side of the rotating section 15 away from the input port and the limiting convex portion 132. The elastic member 17 is used to squeeze the rotating section 15 so that the rotating section 15 keeps closing the other main input holes 141 that are not connected to the transfer hole 151. The elastic member 17 in this embodiment is a spring, and the rotating section 15 includes a plate body and a column body. The elastic member 17 is sleeved on the outer periphery of the column body of the rotating section 15.

[0093] The micro switch 1A is fixedly arranged in the valve housing 11. A fixing column is arranged on the inner wall of the valve housing 11. The axial direction of the fixing column is consistent with the axial direction of the rotating shaft 13. The micro switch 1A is provided with a fixing hole 1A1 for plugging with the fixing column. The lever 1B is fixedly connected to the rotating shaft 13, and the micro switch 1A is located on the rotation track of the lever 1B. Before the rotary slice 15 is switched to another main input hole 141 for docking each time, the rotating shaft 13 rotates to drive the lever 1B to rotate, and the lever 1B squeezes and triggers the micro switch 1A. At this time, the host control board receives the return signal of the rotary drive mechanism 12 to the origin, which has the function of origin calibration. After calibration, the rotary drive mechanism 12 can accurately drive the rotary slice 15 to rotate to the required position, and can eliminate the error in the process of multiple rotary cutting rotations, so that the transfer hole 151 is accurately docked with the main input hole 141, and the fluid is stably transported.

[0094] In this embodiment, the lever 1B includes a ring member 1B1 and a rod body 1B2 arranged on the circumferential side of the ring member 1B1. The ring member 1B1 is sleeved on the rotating shaft 13. A first positioning groove 1B3 is arranged on the inner side of the ring member 1B1 near the rod body 1B2. Both ends of the first positioning groove 1B3 penetrate the ring member 1B1 along the axial direction of the ring member 1B1. A second positioning groove 1B4 is arranged on the inner side of the ring member 1B1 away from the rod body 1B2. Both ends of the second positioning groove 1B4 penetrate the ring member 1B1 along the radial direction of the ring member 1B1. A first positioning block 133 for positioning and cooperating with the first positioning groove 1B3 and a second positioning block 134 for positioning and cooperating with the second positioning groove 1B4 are arranged on the circumference of the rotating shaft 13. The first positioning groove 1B3 penetrating the ring member 1B1 along the axial direction of the ring member 1B1 is set at a position close to the rod body 1B2, while the second positioning groove 1B4 only penetrates part of the ring member 1B1 along the radial direction of the ring member 1B1. The overall strength of the ring member 1B1 is good, and the connection stability with the rotating shaft 13 is high.

[0095] Please refer to Figure 8 The multi-channel rotary cutting valve in this embodiment also includes a Hall switch 2E, a magnet bracket 2C, and a magnet 2D. The Hall switch 2E is arranged between the sealing gasket 19 and the inner wall of the valve housing 11 where the main input hole 241 is located. A plurality of magnets 2D are embedded in the mounting hole 2C1 of the magnet bracket 2C. The plurality of magnets 2D are distributed in a ring around the axial center of the magnet bracket 2C. The magnet bracket 2C is located between the rotary cutting piece 15 and the water passing piece 18. The water passing piece 18 is provided with an inner hole, and the magnet bracket 2C is located in the inner hole.

[0096] In this embodiment, a connection column 2C2 is provided on the magnet support 2C, and a connection hole for positioning and connecting with the connection column 2C2 is provided on the spin slice 15. The magnet support 2C rotates with the spin slice 15, so that during the rotation of the spin slice 15, different magnets 2D are sensed one by one by the Hall switch 2E.

[0097] The multi-channel rotary cutting valve in this embodiment further includes a connecting pipe 16 , which connects one end of the transfer hole 151 and the output hole 131 , and the other end of the transfer hole 151 is connected to the main input hole 241 .

[0098] Please refer to Fig.10 In this embodiment, a fixing groove 112 is provided on the inner side of the valve housing 11, and an output adapter hole 111 communicating with the inner and outer spaces of the valve housing 11 is provided in the fixing groove 112. One end of the rotating shaft 13 where the output hole 131 is located is rotatably connected in the fixing groove 112, and the output hole 131 is butted with the output adapter hole 111. A sealing ring 21 is sleeved on the part of the rotating shaft 13 located in the fixing groove 112 to achieve dynamic sealing between the rotating shaft 13 and the inner wall of the fixing groove 112. By butting the output hole 131 with the output adapter hole 111, the external output pipe is connected to the output adapter hole 111, and will not rotate with the rotating shaft 13, which effectively prevents the external output pipe from rotating with the rotating shaft 13 and twisting and entangled together, thereby avoiding valve function failure.

[0099] It is understandable that in the first embodiment, a fixing groove 112 and an output adapter hole 111 can also be provided on the valve cover, so as to realize a dynamic seal between the rotating shaft 13 and the inner wall of the fixing groove 112, and to prevent the external output pipe from twisting and entangled with the rotating shaft 13, thereby causing the valve function to fail.

[0100] In this embodiment, the valve housing 11 includes a main shell, a valve cover 24, and a fixed bracket 2F. One end of the main shell is an opening, and the valve cover 24 is closed and arranged on the opening. A plurality of main input holes 241 are arranged on the peripheral side of the valve cover 24, and the axis of the main input hole 241 is perpendicular to the axis of the rotating shaft 13.

[0101] The valve cover 24 is located between the rotary drive mechanism 12 and the main housing. The rotary drive mechanism 12 is connected to the valve cover 24 via a fixed bracket 2F. The lever 1B and the micro switch 1A are arranged between the valve cover 24 and the fixed bracket 2F.

[0102] The working principle of the switching channel of the multi-channel rotary cut valve with independent water outlet pipelines in this embodiment is consistent with that in the first embodiment, and will not be described in detail in this embodiment.

[0103] The third embodiment of a multi-channel rotary cutting valve provided by the present invention is as follows, which can solve the above technical problems. The third embodiment is different from the first embodiment and the second embodiment mainly in that a secondary input hole is provided on the valve housing, and the secondary input hole can cooperate with the main input hole to realize fluid mixing and delivery.

[0104] The present embodiment provides a multi-channel rotary cutting valve, which includes: a valve housing 11, a rotary driving mechanism 12, a rotary shaft 13, a rotary cutting piece 15, an elastic member 17, a lever 1B, and a micro switch 1A.

[0105] The rotating shaft 13 rotates and penetrates the valve housing 11, and one end of the rotating shaft 13 is connected to the output end of the rotating drive mechanism 12. The other end of the rotating shaft 13 is provided with an output hole 131 connected to the inner and outer spaces of the valve housing 11, and the valve housing 11 is provided with a plurality of main input holes 141 connected to the inner and outer spaces of the valve housing 11. The rotating drive mechanism 12 may be a motor, which drives the rotating shaft 13 to rotate.

[0106] The rotary slice 15 is located in the valve housing 11. The rotary slice 15 is slidably sleeved on the outer periphery of the rotating shaft 13, and the rotary slice 15 is transmission-coordinated with the rotating shaft 13. The rotary slice 15 and the rotating shaft 13 rotate synchronously. The rotary slice 15 covers multiple main input holes 141. A transfer hole 151 is provided on the rotary slice 15. The rotation of the rotary slice 15 enables the transfer hole 151 to switch and dock with different main input holes 141, thereby switching different main input holes 141 to be connected with the output hole 131.

[0107] The outer periphery of the rotating shaft 13 is provided with a limiting convex portion 132, and the elastic member 17 is located between the side of the rotating section 15 away from the input port and the limiting convex portion 132. The elastic member 17 is used to squeeze the rotating section 15 so that the rotating section 15 keeps closing the other main input holes 141 that are not connected to the transfer hole 151. The elastic member 17 in this embodiment is a spring, and the rotating section 15 includes a plate body and a column body. The elastic member 17 is sleeved on the outer periphery of the column body of the rotating section 15.

[0108] The micro switch 1A is fixedly arranged in the valve housing 11. A fixing column is arranged on the inner wall of the valve housing 11. The axial direction of the fixing column is consistent with the axial direction of the rotating shaft 13. The micro switch 1A is provided with a fixing hole 1A1 for plugging with the fixing column. The lever 1B is fixedly connected to the rotating shaft 13, and the micro switch 1A is located on the rotation track of the lever 1B. Before the rotary slice 15 is switched to another main input hole 141 for docking each time, the rotating shaft 13 rotates to drive the lever 1B to rotate, and the lever 1B squeezes and triggers the micro switch 1A. At this time, the host control board receives the return signal of the rotary drive mechanism 12 to the origin, which has the function of origin calibration. After calibration, the rotary drive mechanism 12 can accurately drive the rotary slice 15 to rotate to the required position, and can eliminate the error in the process of multiple rotary cutting rotations, so that the transfer hole 151 is accurately docked with the main input hole 141, and the fluid is stably transported.

[0109] The multi-channel rotary cutting valve of this embodiment also includes a water pass plate 18, which is arranged between the rotary cutting piece 15 and the inner wall of the valve shell 11 where the main input hole 141 is located. The water pass plate 18 is provided with first through holes 33 corresponding to the multiple main input holes 141 one by one. The rotary cutting piece 15 and the water pass plate 18 are made of ceramic material, preferably a high-hardness and high-wear-resistant ceramic material, which can well ensure the sealing of the rotary cutting part. The rotary cutting piece 15 and the water pass plate 18 have a long rotation switching life and will not rust.

[0110] Furthermore, a sealing gasket 19 is provided between the water-passing plate 18 and the inner wall of the valve housing 11 where the main input holes 141 are located, and the sealing gasket 19 is provided with second through holes corresponding to the plurality of main input holes 141 one by one.

[0111] Please refer to Fig.12 The multi-channel rotary cutting valve also includes at least one secondary input hole connecting the inner and outer spaces of the valve housing. The secondary input hole can refer to the first embodiment. Figure 1 and the second embodiment Figure 7 The secondary input is also arranged on the valve cover. The spin slice 15 covers the secondary input hole, the water passing slice 18 is provided with a third through hole 31 corresponding to the secondary input hole, and the sealing gasket 19 is provided with a fourth through hole corresponding to the secondary input hole.

[0112] A connecting hole 32 with a long strip-shaped radial cross section is provided on one side of the transfer hole on the rotary slice 15 close to the water-passing slice 18. The radial extension direction of the connecting hole 32 is consistent with the radial direction of the rotary slice 15. The radial cross sections of the first through hole 33 and the second through hole are both long strips, and the radial extension direction of the first through hole 33 and the second through hole is consistent with the circumferential direction of the rotary slice 15. The third through hole 31 and part of the first through hole 33 are located on the same radial line of the water-passing slice 18.

[0113] The spin slice 15 includes a single input position and a multi-input position on the rotation track. When the spin slice 15 is located at the single input position, the connection hole 32 is connected to the first through hole 33, so that the single main input hole 141 can transport a single fluid. When the spin slice 15 is located at the multi-input position, the connection hole 32 is connected to the first through hole 33 and the third through hole 31 at the same time, so that the secondary input hole and the single main input hole 141 can transport a mixed fluid together.

[0114] Benefiting from the accuracy of the multi-channel rotary cutting valve in controlling the rotary cutting section of this embodiment, the rotary drive mechanism 12 can better control the rotary cutting section 15 to rotate to a single input position or to multiple input positions, thereby realizing a single main input hole 141 to deliver a single fluid, or a secondary input hole and a single main input hole 141 to cooperate in delivering a mixed fluid.

[0115] The multi-channel rotary cutting valve of the present invention is provided with a micro switch. Before the rotary cutting piece is switched to another main input hole for docking each time, the micro switch can be triggered by squeezing the rotating lever. At this time, the host control board receives the homing signal of the rotary drive mechanism returning to the origin, which plays the role of origin calibration. After calibration, the rotary drive mechanism can accurately drive the rotary cutting piece to rotate to the required position, eliminate the error in the process of multiple rotary cutting rotations, make the transfer hole and the main input hole dock accurately, and stably transport the fluid.

[0116] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A multi-channel rotary cutting valve, characterized in that: The invention comprises: a valve housing, a rotary driving mechanism, a rotary shaft, a rotary slice, an elastic member, a lever, and a micro switch; The rotating shaft rotates and penetrates the valve housing, one end of the rotating shaft is connected to the output end of the rotating drive mechanism, the other end of the rotating shaft is provided with an output hole communicating with the inner and outer spaces of the valve housing, and the valve housing is provided with a plurality of main input holes communicating with the inner and outer spaces of the valve housing; The rotary slice is located in the valve housing, the rotary slice is slidably sleeved on the outer periphery of the rotating shaft, and the rotary slice is in transmission cooperation with the rotating shaft, the rotary slice covers a plurality of the main input holes, a transfer hole is provided on the rotary slice, and the rotary slice rotates so that the transfer hole switches to dock with different main input holes, a limiting convex portion is provided on the outer periphery of the rotating shaft, and the elastic member is located between a side of the rotary slice away from the input port and the limiting convex portion; The micro switch is fixedly arranged in the valve housing, a fixing column is arranged on the inner wall of the valve housing, the axial direction of the fixing column is consistent with the axial direction of the rotating shaft, a fixing hole for plugging with the fixing column is arranged on the micro switch, the lever is fixedly connected with the rotating shaft, and the micro switch is located on the rotation track of the lever.

2. The multi-channel rotary cutting valve according to claim 1, characterized in that: The shift rod includes an annular member and a rod body arranged on the circumferential side of the annular member, the annular member is sleeved on the rotating shaft, a first positioning groove is arranged on the inner side of the annular member near the rod body, two ends of the first positioning groove penetrate the annular member along the axial direction of the annular member, a second positioning groove is arranged on the inner side of the annular member away from the rod body, two ends of the second positioning groove penetrate the annular member along the radial direction of the annular member, and a first positioning block for positioning and cooperating with the first positioning groove and a second positioning block for positioning and cooperating with the second positioning groove are arranged on the circumference of the rotating shaft.

3. The multi-channel rotary cutting valve according to claim 1, characterized in that: The multi-channel rotary cutting valve further comprises a water passing plate, which is arranged between the rotary cutting plate and the inner wall of the valve housing where the main input hole is located, and the water passing plate is provided with first through holes corresponding to the plurality of main input holes one by one, and the rotary cutting plate and the water passing plate are made of ceramic material; A sealing gasket is arranged between the water-passing plate and the inner wall of the valve housing where the main input holes are located, and the sealing gasket is provided with second through holes corresponding to the plurality of main input holes one by one.

4. The multi-channel rotary cutting valve according to claim 3, characterized in that: The multi-channel rotary cutting valve also includes a Hall switch, a magnet bracket, and a magnet. The Hall switch is arranged between the sealing gasket and the inner wall of the valve housing where the main input hole is located. A plurality of magnets are embedded in the magnet bracket. A plurality of magnets are distributed in an annular manner around the axial center of the magnet bracket. The magnet bracket is located between the rotary cutting piece and the water passing piece. The water passing piece is provided with an inner hole, and the magnet bracket is located in the inner hole.

5. The multi-channel rotary cutting valve according to claim 4, characterized in that: The magnet bracket is provided with a connecting column, and the rotary slice is provided with a connecting hole positioned and connected with the connecting column, or the magnet bracket is provided with a clamping rod, and the rotary slice is provided with a clamping hole plugged with the clamping rod.

6. The multi-channel rotary cutting valve according to claim 4, characterized in that: One end of the transfer hole and the output hole are connected via a connecting pipe; A convex tube is protruded from one side of the rotating shaft, and the output hole extends into the convex tube; The connecting tube is connected to the convex tube and the transfer hole by bending, or the convex tube is bent, and the connecting tube is in a straight strip shape to connect the convex tube and the transfer hole.

7. The multi-channel rotary cutting valve according to claim 3, characterized in that: The multi-channel rotary cutting valve further comprises at least one secondary input hole communicating with the inner and outer spaces of the valve housing, the rotary cutting piece covers the secondary input hole, the water passing piece is provided with a third through hole corresponding to the secondary input hole, and the sealing gasket is provided with a fourth through hole corresponding to the secondary input hole; A connecting hole with a long strip-shaped radial cross section is provided on one side of the transfer hole on the rotary slice close to the water-passing slice, the radial extension direction of the connecting hole is consistent with the radial direction of the rotary slice, the radial cross sections of the first through hole and the second through hole are both long strip-shaped, and the radial extension directions of the first through hole and the second through hole are consistent with the circumferential direction of the rotary slice, and the third through hole and part of the first through hole are located on the same radial line of the water-passing slice; The spin slice includes a single input position and a multiple input position on the rotation trajectory. When the spin slice is located at the single input position, the connecting hole is connected to the first through hole. When the spin slice is located at the multiple input position, the connecting hole is connected to the first through hole and the third through hole at the same time.

8. The multi-channel rotary cutting valve according to claim 1, characterized in that: The valve housing comprises a main housing, a valve cover and a fixing bracket, one end of the main housing is an opening, the valve cover is closed and arranged on the opening, the output hole and a plurality of main input holes are located on the end surface of the valve cover, and the axis of the main input hole is parallel to the axis of the rotating shaft; The rotary drive mechanism is located at one end of the main housing away from the opening, the rotary drive mechanism is connected to the main housing via the fixing bracket, and the lever and the micro switch are arranged between the main housing and the fixing bracket.

9. The multi-channel rotary cutting valve according to claim 1, characterized in that: The valve housing comprises a main housing, a valve cover, and a fixing bracket, one end of the main housing is an opening, the valve cover is closed and arranged on the opening, a plurality of main input holes are arranged on the peripheral side surface of the valve cover, and the axis of the main input hole is perpendicular to the axis of the rotating shaft; The valve cover is located between the rotary drive mechanism and the main housing, the rotary drive mechanism is connected to the valve cover through the fixed bracket, and the lever and the micro switch are arranged between the valve cover and the fixed bracket; A fixing groove is provided on the inner side of the valve housing, and an output adapter hole communicating with the inner and outer spaces of the valve housing is provided in the fixing groove. One end of the rotating shaft where the output hole is located is rotatably connected in the fixing groove, and the output hole is butted against the output adapter hole. A sealing ring is sleeved on the portion of the rotating shaft located in the fixing groove.

10. A rotary cutting control method, characterized in that: The multi-channel rotary cutting valve according to any one of claims 1 to 9 is controlled by a host control panel, and the rotary cutting control method comprises the following steps: Step S11: The plurality of main input holes are all numbered accordingly, and when the host control board controls the rotation drive mechanism to drive the transfer hole to dock with the main input hole with a set number, the set number is stored as current number information; Step S12: the host control panel receives the target number information of the main input hole to be docked input by the user, and the host control panel compares the target number information with the current number information; Step S13: if the target number information is consistent with the current number information, outputting a peeling completion signal; If the target number information is inconsistent with the current number information, the host control board controls the rotation drive mechanism to drive the rotation shaft to rotate, driving the lever to rotate until it contacts the micro switch, so that the micro switch sends a homing signal to the host control board for the rotation drive mechanism to return to the origin. After receiving the homing signal, the host control board controls the rotation drive mechanism to drive the rotation shaft to rotate, so that the rotary slice rotates to the position where the transfer hole and the main input hole corresponding to the target number information are connected, and then outputs a rotary cutting completion signal.

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