WO2013177965A1 - 调色机的色浆定量供应装置 - Google Patents

调色机的色浆定量供应装置 Download PDF

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Publication number
WO2013177965A1
WO2013177965A1 PCT/CN2013/072214 CN2013072214W WO2013177965A1 WO 2013177965 A1 WO2013177965 A1 WO 2013177965A1 CN 2013072214 W CN2013072214 W CN 2013072214W WO 2013177965 A1 WO2013177965 A1 WO 2013177965A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
cylinder
stroke
swash plate
color paste
Prior art date
Application number
PCT/CN2013/072214
Other languages
English (en)
French (fr)
Inventor
李环
Original Assignee
沈如华
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 沈如华 filed Critical 沈如华
Priority to US14/404,867 priority Critical patent/US10378523B2/en
Priority to EP13796679.2A priority patent/EP2878815A4/en
Publication of WO2013177965A1 publication Critical patent/WO2013177965A1/zh
Priority to IN10971DEN2014 priority patent/IN2014DN10971A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/28—Control of machines or pumps with stationary cylinders
    • F04B1/29—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • F04B1/148—Bearings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
    • B01F33/841—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with component receptacles fixed in a circular configuration on a horizontal table, e.g. the table being able to be indexed about a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • F04B49/035—Bypassing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1204—Position of a rotating inclined plate
    • F04B2201/12041—Angular position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1208—Angular position of the shaft

Definitions

  • the invention relates to the field of paint grading, in particular to the field of fully automatic paint grading.
  • the present invention relates to a supply apparatus for metering a pumped color paste in an automatic paint toning system. Further, the present invention relates to a color concentrator having the colorant supply device. Background technique
  • a coating of the desired color is typically obtained by quantitatively pumping a predetermined color paste to the primer. Due to the increasing demand for color today, the accuracy of providing the amount of colorant fluid is critical to judging the color system and even the quality of the coating.
  • the maximum supply amount of the toner per unit time of the color paste supply device of the color correction system can be increased.
  • the paste is generally in the form of a viscous fluid with wear (e.g., due to the presence of mineral particles in the paste), this may adversely affect the useful life of the colorant supply of the toning system.
  • a fluid dispensing system for colorants are disclosed in the prior art.
  • a fluid dispensing system is disclosed, for example, in the international publication WO 02/25225 A1, which has a computer control system operatively coupled to a stepper motor that is coupled to a nutating pump (also commonly referred to as a DVX pump).
  • the stepper motor actuates the nutating pump with less than one revolution of resolution.
  • the computer control system determines the number of steps of the stepper motor based on the amount of fluid pumped by the nutating pump to rotate the piston at a resolution of less than one revolution.
  • an automated color paste dispenser having a color paste modular design with a color paste cartridge in its colorant module and connected to a color paste cartridge is disclosed in US Patent No. 6,726,065 B2.
  • the pumping module, and the pumping module includes a stepping motor, a support shaft, a chamber that receives the support shaft, and a pair of pushers and seals that are rotated by the support shaft. The pair of pushers are placed in the chamber for pumping a metered amount of colorant.
  • a colorant supply device in particular a color machine, comprising: a color paste source; a cylinder having a plurality of piston cylinders arranged circumferentially thereof; a coaxially disposed beveled swash plate configured to be rotatable relative to the cylinder about a longitudinal axis thereof; a plurality of piston mechanisms, each piston mechanism including a piston rod and a piston coupled to the piston rod, the piston rod a rolling abutting structure abutting the inclined surface, the piston being configured to perform a stroke motion in a corresponding piston cylinder by rotation of the swash plate; an actuator for actuating the swash plate; a controller connected to the actuator to control the amount of rotation of the swash plate; an outlet for dispensing the color paste.
  • the stroke motion of each piston includes a first stroke and a reversed second stroke.
  • the piston cylinder in which the piston is located communicates with the color paste source to suck the color paste from the color paste source.
  • the second stroke the sucked color paste is discharged from the piston cylinder.
  • the apparatus can include an axial return mechanism for biasing the rolling abutment structure toward the ramp in an axial direction.
  • the apparatus may further include a circumferential return mechanism configured to apply a circumferential restoring force to the rolling 4 joint structure during the rotation of the swash plate to cause the rolling 4 joint structure to tend to return The predetermined abutment state of the slope.
  • a circumferential return mechanism configured to apply a circumferential restoring force to the rolling 4 joint structure during the rotation of the swash plate to cause the rolling 4 joint structure to tend to return The predetermined abutment state of the slope.
  • the device With such a device of the invention, good pumping accuracy is provided. And it is very important to be able to effectively increase the maximum pumping volume per unit time. Moreover, the device provides a very low friction operating environment in the event of normal pumping, which effectively extends the life of the device.
  • a color paste supply device in particular a color machine, comprising: a color paste source; a cylinder having a plurality of piston cylinders arranged circumferentially thereof; substantially coaxial with the cylinder a beveled swash plate disposed to be rotatable relative to the cylinder about a longitudinal axis thereof; a plurality of piston mechanisms, each piston mechanism including a piston rod and a piston coupled to the piston rod, the piston rod having abut a rolling abutting structure connected to the inclined surface, the piston being configured to perform a stroke motion in a corresponding piston cylinder by rotation of the swash plate; an actuator for actuating the swash plate;
  • the actuator is a controller for controlling the amount of rotation of the swash plate; an outlet for dispensing the color paste.
  • each piston may include a first stroke and a reverse second stroke, in which the piston cylinder in which the piston is located communicates with the color paste source to draw in from the color paste source In the second stroke, the sucked color paste is discharged from the piston cylinder.
  • the apparatus may also include a zero position indicating mechanism for indicating a zero position of the swash plate relative to the cylinder.
  • the apparatus further includes a three-way valve disposed between the piston cylinder and the outlet, the three-way valve configured to selectively allow the colorant discharged from the piston cylinder to flow to the outlet or Return to the color paste source.
  • the three-way valve is configured to allow the colorant discharged from the piston cylinder to flow back to the toner source during the process of resetting the swash plate to the zero position.
  • a coloring machine having at least one, preferably a plurality, for example four, six, eight or sixteen colorant dosing devices according to the present invention.
  • Figure 1 is an exploded perspective view showing an embodiment of a color paste supply device of a color concentrator according to the present invention
  • Figure 2 is a side elevational view showing an embodiment of a color dosing supply device of a color mixing machine according to the present invention
  • Figure 3 is a partial cross-sectional view showing an embodiment of a color dosing supply device of a toning machine according to the present invention, in which parts of the device are removed to show the internal structure of the device;
  • Figure 4 is a partial cross-sectional view showing an embodiment of a color dosing supply device of a color mixing machine according to the present invention, specifically showing a piston mechanism according to the present invention;
  • Figure 5 is a partial cross-sectional view showing an embodiment of a color paste supply device of a color grading machine according to the present invention, specifically showing a colorant supply device spindle according to the present invention;
  • Figure 6 is a side cross-sectional view showing an embodiment of a color dosing supply device of a color mixing machine according to the present invention
  • Figure 7 is a partial perspective view showing an embodiment of a colorant dosing device of a toning machine according to the present invention, specifically showing a rolling abutment structure and a zero position indicating mechanism according to the present invention;
  • Figure 8 is a partial perspective view showing an embodiment of a color dosing supply device of a color grading machine according to the present invention, specifically showing a rolling abutment structure and a reset mechanism according to the present invention
  • Figure 9 is a partial perspective view showing an embodiment of a color dosing supply device of a color grading machine according to the present invention
  • Fig. 10A is a view schematically showing a plurality of piston mechanisms of the color dosing apparatus according to the present invention and a plurality of rotational positions of the swash plate;
  • Fig. 10B is a view schematically showing the relationship between the stroke of the piston mechanism and the swash plate rotation angle according to the present invention.
  • 1-color paste supply device 2-color paste inlet; 3-cylinder; 5- fixed valve plate; 6-moving valve plate; 10-sleeve member; 11-rod; 13-spindle; Mechanism; 15-first fixed valve plate opening; 16-second fixed valve plate opening; 17-communication groove; 18-three-way valve; 21-cylinder bottom cover; 22-piston rod; 23-piston; 25, 25A- Piston cylinder; 27-bearing; 28-spring; 29-bearing; 30-outer member (spherical kit); 31-pivot; 32-spring first end; 33-spring second end; 34-swashplate (drive 41) end cap; 42-end cap cavity; 45-check valve; 52-shield; 53-bracket; 57-sensor mount; 58-sensor mechanism; 58A-first sensor; 58B-second Sensor; 63-zero position indicating plate; 65-coupling; 67-connecting frame; 68-bracket; 69-stepping motor; S-color slurry source; 0-out
  • Fig. 1 schematically shows an exploded perspective view of a colorant supply device 1 of the present invention.
  • the color paste supply device 1 of the present invention is applied to the field of paint coloring, particularly to a pumping mechanism, such as a color machine, used in an automatic color matching system.
  • the term "color paste” as used herein shall have the broad meaning of any fluid or viscous fluid that is suitable for use in the field of paint tinting, including but not limited to a wide variety of paints and coatings.
  • the paste supply device 1 has a paste source S.
  • the paste source S is supplied through the paste inlet 2 of the paste supply device 1.
  • the paste dosing device 1 further comprises a cylinder 3 having a plurality of piston cylinders 25, 25A arranged circumferentially thereof, six as shown, but can be arranged More or less. The pulp is there.
  • the paste dosing device 1 further includes a plurality of piston mechanisms correspondingly located in the respective piston cylinders 25.
  • the piston mechanism includes a piston rod 22, a piston 23 coupled to one end of the piston rod, and a rolling abutment structure on the other end of the piston rod, as will be described in more detail below.
  • the paste dosing apparatus 1 further includes a drive plate 34 disposed substantially coaxially with the cylinder, the drive plate being in the form of a swash plate with a bevel.
  • the rolling abutment structure described above abuts the slope.
  • the swash plate is configured to be rotatable relative to the cylinder about its longitudinal axis (also the longitudinal axis of the cylinder).
  • the cylinder is fixed to the frame of the apparatus and the swashplate is rotatable about the axis of rotation, but the reverse is also possible.
  • an actuator for actuating the swash plate is also provided in the supply device 1.
  • the actuator is in the form of a stepper motor 69, but could be other suitable actuation mechanisms.
  • the supply device 1 is also provided with a controller for controlling the amount of rotation of the actuator. Suitable controllers are known in the art, and any suitable actuator can be used.
  • the stepping motor 69 is supported by the stepping motor holder 68 and is coupled to the main shaft 13 of the supply unit 1 via a coupling 65.
  • the main shaft 13 is in turn non-rotatably coupled to the swash plate 34, and the main shaft 13 passes through a shaft hole formed in the cylinder block 3 and is substantially coaxial with the longitudinal axis of the swash plate 34 and the cylinder block 3.
  • Other drive configurations are contemplated by those skilled in the art, such as a stepper motor that directly drives the swashplate.
  • the controller controls the rotation of the actuator as described above.
  • the rotation of the swash plate 34 causes the piston 23 to perform a corresponding stroke motion in the respective piston cylinders 25, 25A.
  • the stroke motion of each piston includes a downward first stroke and a reverse second stroke.
  • the piston cylinder 25 in which the piston 23 is located communicates with the paste source S to be sucked through the paste inlet 2 Color paste
  • the sucked color paste is discharged from the piston cylinder 25, and is discharged and dispensed through an outlet (not shown) of the supply device 1. Therefore, by controlling the amount of rotation of the actuator, it is finally possible to control the amount of fluid supplied by the supply device 1, thereby accomplishing the purpose of quantitatively supplying the color paste.
  • the supply device 1 needs to be operated without or with virtually no lubricant, in particular a liquid lubricant, since the device is configured to pump a colorant and there is a requirement to precisely control the amount of colorant supplied.
  • a solid lubricant such as butter is applied to the abutment of the rolling abutment structure and the slope.
  • the present invention provides the above-described rolling abutment structure configured to be in rolling contact with at least a portion of the slope of the swash plate 34, thereby significantly reducing friction of the contact member.
  • the piston rod 22 includes a shaft having a first end coupled to the piston 23 and a second end rotatably coupled to the rolling abutment.
  • the rolling abutment structure is rotatable relative to the shaft about a longitudinal axis of the shaft.
  • the rolling abutment structure includes a socket 27 and a rolling bearing member pivotally mounted on the socket.
  • the socket 27 can be made of any suitable material, such as plastic.
  • the rolling bearing member includes a pivot 31 fixedly mounted on the socket, a bearing 28 sleeved on the pivot 31, and an outer member (spherical sleeve) 30 sleeved on the bearing 29, the spherical kit at least partially defining 4 The spherical contact surface of the inclined surface of the swash plate.
  • the bearing 29 can be any suitable bearing, such as a ball, roller or thrust bearing, with the bearing inner ring fixedly coupled to the pivot 31 and the outer ring fixedly coupled to the inner bore of the outer member 30.
  • the outer member 30, for example, its spherical contact surface has at least a rotation about the longitudinal axis of the shaft and the two orientations about the pivot, thereby providing a very excellent low friction contact of the piston rod 22 and the swash plate 34.
  • part or all of the spherical sleeve 30 or its spherical contact surface is made of a rigid metal such as an aluminum alloy, stainless steel or the like, and the spherical contact surface Some or all of it is coated with a solid lubricating material such as grease, such as butter.
  • the spherical kit 30 or a part or all of its spherical contact surface may be made of a low friction material conforming to rigid conditions, such as a self-lubricating material such as polytetrafluoroethylene.
  • the supply device 1 is also provided for use along the shaft in order to cause the piston mechanism to always abut the swash plate during the rotation of the swash plate to effect the corresponding stroke movement.
  • An axial return mechanism that biases the rolling abutment structure toward the ramp is presented in the form of a spring 28 in the illustrated embodiment. As shown, the spring 28 is sleeved over each of the piston mechanisms between the cylinder bottom cover 21 of the cylinder block 3 and the socket 27 of the rolling abutment structure.
  • any other suitable longitudinal reset mechanism is also possible.
  • the supply device 1 is further provided with a circumferential return mechanism configured to apply a circumferential return during the swash plate rotation The force is applied to the rolling 4 joint structure such that the rolling 4 joint structure tends to at least partially and preferably all revert to a predetermined abutment state with the ramp.
  • a circumferential return mechanism configured to apply a circumferential return during the swash plate rotation The force is applied to the rolling 4 joint structure such that the rolling 4 joint structure tends to at least partially and preferably all revert to a predetermined abutment state with the ramp.
  • the term "circumferential" in the circumferential return mechanism generally refers to the circumferential direction of the piston rod or the rolling abutment structure.
  • the rolling abutment structure will have an optimal or preferred state of abutment with the swash plate, and when the rolling abutment structure is in rolling contact along the swash plate in this state, Small friction; while there is no circumferential reset mechanism during the swash plate rotation, the abutment of the rolling abutment structure (spherical sleeve 30) and the swash plate will deviate from the above state, so that the abutment between them will It is very likely that the degree of rolling contact or rolling contact is not reduced. This may be similar to the contact of the wheel with the road when it travels along a straight road (maximizing rolling contact) and when turning (less or less rolling contact).
  • the circumferential return mechanism is also provided by a spring 28 having a first end 32 fixedly coupled to the rolling abutment structure and a second end fixedly coupled to the cylinder block. 33.
  • a spring 28 having a first end 32 fixedly coupled to the rolling abutment structure and a second end fixedly coupled to the cylinder block. 33.
  • the first end 32 and the second end 33 of the spring 28 apply a substantially circumferential restoring force to the rolling abutment structure. It tends to respond to a predetermined rolling contact state.
  • the axial return mechanism and the circumferential reset mechanism are collectively constituted by a spring 28, the axial reset mechanism and the circumferential reset mechanism may be provided separately as long as they are capable of achieving their respective The function is fine.
  • the axial reset mechanism and/or the circumferential reset mechanism may each include a plurality of members.
  • the spring 28 is shown as a coil spring, but it can be any other suitable spring mechanism.
  • the piston 23 can be configured such that the colorant in the piston cylinders 25, 25A is not opaquely separated from the piston rod 22, so that the colorant does not adversely affect the movement of the piston rod 22 within the piston cylinders 25, 25A and
  • the rolling abutment structure abuts against the swash plate 34.
  • the piston 23 includes a plurality of spaced apart piston members that can be sealingly engaged with the piston cylinders 25, 25A to prevent the colorant from being displaced from the piston cylinder in front of the piston 23. 25.
  • the 25A space enters the piston cylinder space in which the piston rod 22 is located.
  • the supply device may further comprise a sleeve member 10 that is sleeved on the piston rod.
  • the sleeve member 10 can be fixedly mounted in each of the piston cylinders 25, 25A and slidable relative to the piston rod 22.
  • the sleeve member 10 can be made of a low friction material such as a self-lubricating material such as Teflon.
  • the inner side of the sleeve member 10 is provided with a plurality of grooves, a plurality of balls being placed in the grooves, and the piston rods 22 are preferably at least partially in rolling contact with respect to the balls.
  • the main shaft 13 is formed with a rod portion 11 passing through the cylinder block 3.
  • the rod portion 11 may be provided with bearings at both ends to facilitate the rotation of the main shaft with respect to the cylinder block 3.
  • the supply device 1 can also include a zero position indicating mechanism for indicating the zero position of the swash plate relative to the cylinder.
  • the supply device 1 theory can start to supply an accurate amount of color paste indiscriminately at any one position.
  • a zero position indicating mechanism according to the invention is provided, whereby the supply device 1 Any supply may and preferably begins at a specified zero position.
  • the zero position indicating mechanism includes a zero position indicating plate 63 that rotates in synchronization with the turntable, and a zero position sensor mechanism 58.
  • the zero position sensor mechanism 58 includes a first sensor 58A and a second sensor 58B.
  • the sensor mechanism 58 is secured to the stepper motor bracket 68 sensor bracket 53 by a sensor mount 57 that is coupled to the swashplate shield 52 via a connector 67.
  • the supply device 1 may further include a three-way valve 18 configured to selectively allow the colorant discharged from the piston cylinders 25, 25A to flow to the outlet 0 of the supply device or return Color paste source S.
  • the three-way valve 18 can be switched to the right configuration so that the pumped color paste returns to the color paste source S, and in normal operation, the three-way valve 18 is at The left side is configured so that the supply unit can normally pump and supply a quantitative color paste through the outlet 0.
  • the supply device 1 may comprise a first, movable valve plate 6 disposed at or near the outlet of the piston cylinder, the movable valve plate 6 being disposed coaxially with the swash plate and rotating in synchronism. Furthermore, the supply device 1 may further comprise a second, fixed valve plate 5 disposed between the outlet of the piston cylinder and the first movable valve plate 6, the fixed valve plate 5 being disposed coaxially with the swash plate, but not rotating therewith .
  • the valve plate 5 may have a first fixed valve opening 15 in fluid communication with the paste inlet 2, as shown in the figure.
  • the valve plate 5 can also have a plurality of second fixed valve opening 16, preferably corresponding to the piston cylinder.
  • the movable valve plate 6 can have a communication groove 17 that communicates with the first fixed valve plate opening 15 and selectively communicates with the piston portion of the first portion, thereby allowing the color paste to pass through the color paste from the color paste source S.
  • the inlet 2, the first fixed valve plate opening 15, the communication groove 17, and the corresponding second fixed valve opening 16 enter the first portion of the piston cylinder.
  • the piston 23 in the first portion of the piston cylinder is at the first stroke of the piston that draws the paste from the source of the paste.
  • the movable valve plate 6 also has a small diameter portion (see Fig. 1), thereby allowing the piston red of the second portion (and the corresponding second fixed valve opening 16) to be exposed, thereby allowing the color paste to be discharged out of the second portion.
  • the piston rainbow and the corresponding second fixed valve opening 16 are finally metered through the opening 0.
  • the piston 23 in the second partial piston cylinder is in a reverse second stroke that discharges the colorant out of the piston cylinder.
  • the movable valve plate 6 also has a third structure for covering the piston cylinder 25A in which the piston is at the top dead center or the bottom dead center. As specifically shown in Fig.
  • the movable valve plate 6 covers the piston cylinder 25A in which the piston is at the bottom dead center and the corresponding second fixed valve opening 16.
  • the fixed valve plate 5 is made of a wear resistant material. It is conceivable that the above-described fixed valve plate 5 may not be provided, or the end portion of the cylinder body has the function of the above-described fixed valve plate.
  • one end of the main shaft 13 also has a pressing mechanism 14 which is a compression spring or other suitable structure and is used to press the movable valve plate and/or the fixed valve plate against the end of the cylinder block. on.
  • a pressing mechanism 14 which is a compression spring or other suitable structure and is used to press the movable valve plate and/or the fixed valve plate against the end of the cylinder block. on.
  • the supply device 1 can also have an end cap 41 disposed on the outlet end of the cylinder.
  • the end cap 41 defines a cap chamber 42 with the cylinder and is provided at the outlet of the cap with a one-way valve 45 that allows the paste to flow out of the cap chamber.
  • the end cap cavity 42 of the supply device 1 is typically filled with colorant and a certain amount of colorant is forcibly discharged to the end cap cavity 42 as the drive plate 34 is rotated to cause the piston mechanism to perform a stroke motion.
  • the one-way valve 45 can be used to discharge the quantitative (incremental) color paste out of the outlet of the supply device 1. With this arrangement, the amount of toner supplied is more accurate, and the supply of color paste is more stable, for example, the loss of color paste in the supply process is greatly reduced.
  • FIGS. 10A and 10B The operation of the device 1. Taking six piston mechanisms (piston cylinders) AF as an example, and rotating the counterclockwise rotation of the lowest point of the swash plate in turn, through the evenly spaced 12 rotational positions ⁇ - ⁇ (each interval 30) in the circumference, and It is assumed that the rotational position I is exactly at the above zero position.
  • Fig. 10A six piston mechanisms (piston cylinders) AF are not drawn in a schematic manner according to the actual structure. Where: position I: piston cylinder A cutoff (piston mechanism bottom dead center), D cutoff (top dead center), piston cylinder ⁇ C injection (second stroke), piston cylinder E, F suction (first stroke);
  • Position III Piston rainbow C, F cut-off, piston cylinder A, B injection, piston cylinder D, E suction
  • position IV piston cylinder A, B, F injection, piston cylinder C, D, E suction
  • Position V Piston cylinder B, E cut-off, piston cylinder A, F injection, piston cylinder C, D suction;
  • Position VI Piston rainbow A, E, F injection, piston rainbow B, C, D suction;
  • Position VII Piston cylinder ⁇ , D cut-off, piston cylinder E, F injection, piston cylinder B, C suction
  • Position VIII Piston rainbow D, E, F injection, piston rainbow A, B, C suction
  • Position IX Piston rainbow C, F cut-off, piston cylinder D, E injection, piston cylinder A, B suction; position X: piston rainbow C, D, E injection, piston rainbow A, B, F suction;
  • Position XI Piston cylinder B, E cut-off, piston cylinder C, D injection, piston cylinder A, F suction
  • Position ⁇ Piston rainbow B, C, D injection, piston rainbow A, E, F suction.
  • the piston mechanism (piston cylinder) AC has a projection (corresponding to A, B, C respectively) extending across the highest and lowest points of the swashplate prior to rotation, and having a diameter relative to said diameter after rotation Another projection (corresponding to A, B, C, respectively).
  • the projection distances L1, L2, and L3 are defined between the corresponding projections, and the pitches HI, H2, and H3 of the piston mechanisms A, B, and C are obtained by projecting the pitch onto the swash plate having the swash plate angle ⁇ . .
  • the paste supply device 1 of the present invention can significantly supply a larger amount of color paste. Moreover, the paste dosing device 1 can also provide a very accurate quantitative supply and can provide a single minimum supply of a small amount. In addition, it is durable and has a long service life.

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Abstract

一种色浆定量供应装置（1）和具有该供应装置（1）的调色机。所述供应装置包括：色浆源（S）；缸体（3），具有绕其周向布置的多个活塞缸（25，25A）；与该缸体（3）大致同轴布置的带斜面的斜盘（34）；多个活塞机构，各活塞机构包括活塞杆（22）和与所述活塞杆（22）连接的活塞（23），所述活塞杆（22）具有抵接所述斜面的滚动抵接结构，所述活塞（23）构造成可借助于所述斜盘（34）的转动在相应的活塞缸（25，25A）中做冲程运动；用于致动所述斜盘（34）的致动器；操作连接到所述致动器以控制所述斜盘（34）的转动量的控制器；用于配发色浆的出口（O）。优选地，该供应装置（1）还包括轴向复位机构和周向复位机构。

Description

调色机的色浆定量供应装置 技术领域
本发明涉及涂料调色领域， 尤其涉及全自动涂料调色领域。 特别是， 本发明涉及一种自动涂料调色系统中的用于定量泵送色浆的供应装置。 此 外， 本发明还涉及具有该色浆定量供应装置的调色机。 背景技术
在涂料调色领域， 通常通过定量地泵送预定的色浆到底漆中来获得有 所需颜色的涂料。 由于现今人们对于颜色的要求日益提高， 因此提供色浆 流体量的精确度对于评判调色系统乃至涂料质量是很关键的。 而现今又存 在着对于快速供应色浆的要求， 因此希望调色系统的色浆供应装置的单位 时间内的最大供应色浆量能够提高。 此外， 由于色浆总体上呈带有磨损性 的粘流体形式 （例如由于色浆中含有矿物质微粒）， 因此这可能会不利地 影响调色系统的色浆供应装置的使用寿命。
现有技术中公开了多种用于色浆的流体配发系统。 例如在国际公开文 本 WO02/25225A1中公开了一种流体配发系统，其具有操作连接到步进电 机的计算机控制系统， 该步进电机连接到一个章动泵 （通常也称作 DVX 泵）。 该步进电机以不到一圈的分辨率致动章动泵。 该计算机控制系统根 据章动泵所需泵送的流体量确定步进电机的步数， 从而以小于一圈的分辨 率转动活塞。
此外， 在美国专利申请 US 6, 726, 065 B2中公开了一种自动化的色浆 配发器， 其具有色浆模块化设计， 在其色浆模块中设有色浆筒、 连接到色 浆筒的泵送模块， 且泵送模块包括步进电机、 支承轴、 接纳支承轴的腔室 和通过支承轴被转动的成对推进器以及密封件。 这成对推进器设置在腔室 中用于泵送定量的色浆。
但是， 上述的这些现有的色浆配发系统仍然不能很好地解决现有的技 术问题。 例如它们在一个泵或模块内仅有一个泵送通道泵送色浆流体， 造 成单位时间泵送的最大流体量较小。 此外， 这些现有技术的流体配发系统 的泵的众多运动部件磨损较大， 影响使用寿命。 因此， 对于提供精确的色 浆供应量、 以及具有较高的单位时间内的最大供应量并且具有良好的使用 寿命的色浆供应装置仍存在需求。 发明内容
在本发明的一个方案中， 提供一种尤其是调色机的色浆定量供应装 置， 其包括： 色浆源； 缸体， 具有绕其周向布置的多个活塞缸； 与该缸体 大致同轴布置的带斜面的斜盘， 构造成能绕其纵轴线相对于所述缸体转 动； 多个活塞机构， 各活塞机构包括活塞杆和与所述活塞杆连接的活塞， 所述活塞杆具有抵接所述斜面的滚动抵接结构， 所述活塞构造成可借助于 所述斜盘的转动在相应的活塞缸中做冲程运动； 用于致动所述斜盘的致动 器； 操作连接到所述致动器以控制所述斜盘的转动量的控制器； 用于配发 色浆的出口。 其中， 各活塞的冲程运动包括第一冲程和反向的第二冲程， 在第一冲程中， 所述活塞所在的活塞缸与所述色浆源连通从而从该色浆源 吸入色浆， 在第二冲程中， 所述被吸入的色浆被排出该活塞缸。
在该方案中， 该装置可以包括用于沿轴向将所述滚动抵接结构偏压向 所述斜面的轴向复位机构。
在该方案中， 该装置还可以包括周向复位机构， 其构造成在斜盘转动 过程中可施加周向回复力到该滚动 4氏接结构以使该滚动 4氏接结构趋向于 回复与所述斜面的预定抵接状态。
通过本发明的这种装置， 提供了良好的泵送精度。 且很重要的是， 能 够有效提升单位时间内的最大泵送量。 而且， 该装置在实现正常泵送的情 况下， 提供了非常低摩擦的运行环境， 能够有效延长装置的寿命。
此外， 由于上述多个活塞机构在运行过程中是大致均勾地抵接斜盘， 因此斜盘的磨损 （如有）将会是均勾的， 因而斜盘磨损之后并不会明显影 响该装置的色浆供应量的精度。 这允许该装置有更长的有效使用时间。
根据本发明另一方案， 提供一种尤其是调色机的色浆定量供应装置， 包括： 色浆源； 缸体， 具有绕其周向布置的多个活塞缸； 与该缸体大致同 轴布置的带斜面的斜盘， 构造成能绕其纵轴线相对于所述缸体转动； 多个 活塞机构， 各活塞机构包括活塞杆和与所述活塞杆连接的活塞， 所述活塞 杆具有抵接所述斜面的滚动抵接结构， 所述活塞构造成可借助于所述斜盘 的转动在相应的活塞缸中做冲程运动； 用于致动所述斜盘的致动器； 操作 连接到所述致动器以控制所述斜盘的转动量的控制器； 用于配发色浆的出 口。 其中， 各活塞的冲程运动可以包括第一冲程和反向的第二冲程， 在第 一冲程中， 所述活塞所在的活塞缸与所述色浆源连通从而从该色浆源吸入 色浆， 在第二冲程中， 所述被吸入的色浆被排出该活塞缸。 所述装置还可 以包括零位置指示机构， 用于指示该斜盘相对于所述缸体转动的零位置。
本发明的该配置使得即使在长期使用之后仍能供应精确的流体量。 根据一个优选实施例， 所述装置还包括设置在活塞缸和出口之间的三 通阀， 该三通闹构造成选择性地允许从所述活塞缸排出的所述色浆流向所 述出口或返回所述色浆源。 通过如此设置， 在使得斜盘复位到零位置的过 程中， 三通阀配置成允许从活塞缸排出的色浆流回色浆源。
根据本发明的另一方案， 提供一种调色机， 其具有至少一个、 优选多 个、 例如四个、 六个、 八个或十六个根据本发明的色浆定量供应装置。
本发明的其他特征的一部分是显见的或本领域公知的， 而一部分将在 下文结合其目的、功能、效果和 /或优点进行描述。通过以下的说明和附图，
附图说明
以下， 结合附图来详细说明本发明的实施例， 其中：
图 1示出了根据本发明的调色机的色浆定量供应装置的一个实施例的 分解透视图；
图 2示出了根据本发明的调色机的色浆定量供应装置的实施例的侧视 图；
图 3示出了根据本发明的调色机的色浆定量供应装置的实施例的部分 剖视图， 其中该装置的部分部件被移除以示出装置的内部结构；
图 4示出了根据本发明的调色机的色浆定量供应装置的实施例的部分 剖视图， 其中具体示出了根据本发明的活塞机构；
图 5示出了根据本发明的调色机的色浆定量供应装置的实施例的部分 剖视图， 其中具体示出了根据本发明的色浆定量供应装置主轴；
图 6示出了根据本发明的调色机的色浆定量供应装置的实施例的侧剖 视图；
图 7示出了根据本发明的调色机的色浆定量供应装置的实施例的部分 透视图， 其中具体地示出了根据本发明的滚动抵接结构和零位置指示机 构；
图 8示出了根据本发明的调色机的色浆定量供应装置的实施例的部分 透视图， 其中具体地示出了根据本发明的滚动抵接结构和复位机构； 图 9示出了根据本发明的调色机的色浆定量供应装置的实施例的部分 透视图；
图 10A 示意性地示出了根据本发明的色浆定量供应装置的众活塞机 构以及斜盘众多转动位置；
图 10B 示意性地示出了根据本发明的活塞机构的行程与斜盘转动角 度的关系。
在本发明的说明书以及附图中， 相同或相似的附图标记表示相同或相 似的特征或元件。
附图标记列表：
1-色浆定量供应装置； 2-色浆入口； 3-缸体； 5-定阀板； 6-动阀板； 10- 套筒件； 11-杆部； 13-主轴； 14-压紧机构； 15-第一定阀板开口； 16-第二 定阀板开口； 17-连通槽； 18-三通阀； 21-缸底盖； 22-活塞杆； 23-活塞； 25 , 25A-活塞缸； 27-承座； 28-弹簧； 29-轴承； 30-外构件 （球面套件）； 31-枢轴； 32-弹簧第一端； 33-弹簧第二端； 34-斜盘 （驱动盘）； 41-端盖； 42-端盖腔； 45-单向阀； 52-护罩； 53-支架； 57-传感器固定件； 58-传感器 机构； 58A-第一传感器； 58B-第二传感器； 63-零位置指示盘； 65-联轴器； 67-连接架； 68-支架； 69-步进电机； S-色浆源； 0-出口； A-F-活塞机构（活 塞缸）； Ι-ΧΠ-斜盘转动位置； α -转角； β -斜盘角； L1-L3 -转动位置投影 间距； H1-H3-活塞机构行程。 具体实施方式
现参考下文的描述以及附图说明， 详细示出了本发明系统和方法的示 例性方案。 附图不必按比例绘制且某些特征可被夸大、 移除、 或部分地剖 切以更好地示出和解释本发明。 此外， 尽管附图描绘了一些可能的方案， 这里所进行的描述并不打算穷尽或以其他方式将本发明的范围局限于附 图中所示以及下文的详细描述中所公开的具体形式和构造。
此外， 一些方向性描述将会被引入到下文的描述中。 在通常情况下， 这些方向性术语例如 "向上"、 "向下，， 和其它方向性术语将会理解为具有 其正常含义并且涉及在正常观看附图时的那些方向。 但同样不打算将本发 明的范围和方案仅局限于按照这些方向实施。 例如， 在附图中所示的色浆 定量供应装置是出口顶置而步进电机底置的， 但在本发明的其他实施例 中， 出口底置也是可行的。 图 1示意性示出本发明的色浆定量供应装置 1的分解透视图。 本发明 的色浆定量供应装置 1是应用于涂料调色领域， 尤其是应用于自动调色系 统中的泵出机构， 例如调色机。 在此术语 "色浆" 应具有在涂料调色领域 中所适用的任何流体、 粘流体的广泛含义， 包括但不限于多种漆料、涂料。
如图 6所示， 该色浆定量供应装置 1具有色浆源 S。 如图 2所示， 所 述色浆源 S通过该色浆定量供应装置 1的色浆入口 2被供应。 如图且尤其 是图 4所示， 该色浆定量供应装置 1还包括缸体 3 , 其具有绕其周向布置 的多个活塞缸 25 , 25A, 如图所示为六个， 但是可以设置更多或更少个。 浆到那里。 所述色浆定量供应装置 1还包括相应地位于各个活塞缸 25 内 的多个活塞机构。 所述活塞机构包括活塞杆 22、 与活塞杆的一端连接的活 塞 23以及位于活塞杆的另一端上的滚动抵接结构， 这将在下文详述。
如图所示， 作为本发明的一个重要特征， 该色浆定量供应装置 1还包 括与缸体大致同轴布置的驱动盘 34 , 所述驱动盘呈带有斜面的斜盘形式。 上述的滚动抵接结构抵接斜面。 在本发明中， 该斜盘构造成能绕其纵轴线 (同样也是缸体的纵轴线）相对于所述缸体转动。 在根据本发明的一个优 选实施例中， 缸体是固定到装置的机架上， 斜盘是可绕转动轴线转动的， 但是反过来也是可行的。
如图 1所示，在该供应装置 1中还设置有用于致动所述斜盘的致动器。 在所示的实施例中， 致动器呈步进电机 69 形式， 但也可以是其他合适的 致动机构。 此外， 该供应装置 1还设置有用于控制致动器的转动量的控制 器。 合适的控制器在本领域是已知的， 且可以选用任何合适的致动器。 如 图 1以及图 9所示， 该步进电机 69被步进电机支架 68支承， 且通过联轴 器 65与该供应装置 1的主轴 13连接。 主轴 13进而与斜盘 34以不可相互 转动地连接， 且主轴 13穿过缸体 3内形成的轴孔且与斜盘 34和缸体 3的 纵向轴线大体同轴。 本领域技术人员可想到其他驱动配置， 如步进电机直 接驱动斜盘。
在根据本发明的供应装置 1的操作过程中， 控制器如上所述地控制致 动器的转动。 通过斜盘 34与滚动抵接结构的抵接， 斜盘 34的转动导致了 活塞 23在相应的活塞缸 25 , 25A中做相应的冲程运动。 各活塞的冲程运 动包括向下的第一冲程和反向的第二冲程， 在第一冲程中， 所述活塞 23 所在的活塞缸 25与所述色浆源 S连通从而通过色浆入口 2吸入色浆， 在 第二冲程中， 所述被吸入的色浆被排出该活塞缸 25 , 并通过该供应装置 1 的出口 （未示出）被排出并配发。 因此， 通过控制致动器的转动量， 最终 能够实现控制供应装置 1所供应的流体量，从而完成定量供应色浆的目的。
下面根据本发明的多个附图、 尤其是图 4、 5和 8 , 描述根据本发明的 活塞结构的具体结构以及其与斜盘的相互作用。 如上面提及， 由于该装置 构造成泵送色浆且存在精确控制供应的色浆量的要求， 根据本发明的供应 装置 1需要在没有或几乎没有润滑剂尤其是液体润滑剂的情况下运行， 以 免润滑剂影响色浆质量或者供应量。 例如， 该供应装置 1中不存在有任何 液体润滑剂， 仅在滚动抵接结构和斜面的抵接处涂抹上一些固体润滑剂如 黄油。 但是， 由于例如在活塞杆 22与斜盘 34接触处承受较大的作用力， 因此如果没有合适的减磨手段， 那么将会显著减小该供应装置 1的使用寿 命。 针对此， 本发明提供了上述的滚动抵接结构， 其构造成其与斜盘 34 斜面的至少一部分接触是滚动接触， 从而显著降低接触部件的摩擦。
如图 4和 8具体示出， 所述活塞杆 22包括具有第一端和第二端的杆 体，该第一端连接至活塞 23 ,而第二端与所述滚动抵接结构可转动地连接。 具体而言， 滚动抵接结构是绕杆体的纵向轴线相对于杆体可转动。 该滚动 抵接结构包括承座 27和可枢转地安装在该承座上的滚动轴承件。 承座 27 可由任何合适材料制成， 例如塑料。 滚动轴承件包括固定安装在承座上的 枢轴 31、 套设在枢轴 31上的轴承 28和套设在轴承 29上的外构件 （球面 套件） 30 , 该球面套件至少部分地限定出 4氏接斜盘斜面的球形接触面。 该 轴承 29 可以是任何合适的轴承， 例如滚珠、 滚柱或止推轴承， 轴承内圈 固定连接到该枢轴 31 , 而外圈固定连接到该外构件 30的内孔。 通过上述 构造， 该外构件 30例如其球形接触面至少具有可绕杆体的纵轴线以及绕 枢轴两个取向的转动， 因此能够提供非常优异的活塞杆 22和斜盘 34的低 摩擦接触。 为了尽量低的摩擦和较长的使用寿命的平衡， 优选地， 球面套 件 30或者其球形接触面的一部分或者全部由刚硬的金属， 如铝合金、 不 锈钢等制成， 且所述球形接触面的一部分或者全部涂覆有固体润滑材料， 如润滑油脂， 比如黄油。 作为替代， 球面套件 30或者其球形接触面的一 部分或者全部可以由符合刚性条件的低摩擦材料、 例如自润滑材料、 比如 聚四氟乙烯制成。
继续参见图 4、 5和 8 , 为了在斜盘转动过程中使得活塞机构始终抵接 着斜盘以实现相应的冲程运动， 根据本发明的供应装置 1还具有用于沿轴 向将所述滚动抵接结构偏压向所述斜面的轴向复位机构， 在所示的实施例 中呈现为弹簧 28的形式。 如图所示， 该弹簧 28套设在每个活塞机构上， 位于缸体 3的缸底盖 21与滚动抵接结构的承座 27之间。 但其他任何合适 的纵向复位机构也是可行的。
此外， 为了进一步减小斜盘 34与活塞杆 22 (滚动抵接结构 )之间的 摩擦， 该供应装置 1还设置有周向复位机构， 其构造成在斜盘转动过程中 可施加周向回复力到该滚动 4氏接结构， 以使该滚动 4氏接结构至少部分地且 优选全部地趋向于回复与所述斜面的预定抵接状态。 注意， 在该周向复位 机构的术语 "周向" 总体是指该活塞杆或者说该滚动抵接结构的周向。
尽管下面的说明仅作为解释而不是限制， 通常滚动抵接结构会具有一 个与斜盘抵接的最优或者优选状态， 当滚动抵接结构在该状态下沿着斜盘 滚动接触时， 具有尽量小的摩擦力； 而在斜盘转动过程中， 如果没有周向 复位机构， 那么滚动抵接结构（球面套件 30 )与斜盘的抵接将会偏离上述 状态， 从而它们之间的抵接将很有可能不是滚动接触或者滚动接触的程度 降低。这可能类似于， 车轮沿直路行进时（滚动接触最大化）与转弯时（滚 动接触程度降低或者没有） 与路面的接触情况。
在所示的实施例中， 该周向复位机构同样是由弹簧 28提供的， 且该 弹簧 28具有固定连接到滚动抵接结构的第一端 32和固定连接到所述缸体 的第二端 33。 在滚动抵接结构的外构件 30偏离预定的 （例如理想的） 滚 动接触状态时， 上述弹簧 28的第一端 32和第二端 33会向滚动抵接结构 施加一个大致周向的回复力使其趋向于回复预定的滚动接触状态。 尽管在 所示的优选实施例中， 所述轴向复位机构和周向复位机构共同地由一弹簧 28构成， 但轴向复位机构和周向复位机构可以分别提供， 只要它们能够分 别实现自己各自的功能即可。或者， 轴向复位机构和 /或周向复位机构各自 可以包括多个构件。 弹簧 28如图所示为螺旋弹簧， 但它可以是其他任何 合适的弹簧机构。
由于色浆通常呈具有磨损性的粘流体， 希望色浆与该供应装置 1的运 动部件或接触部位隔开。 因而， 活塞 23可以构造成使得活塞缸 25、 25A 内的色浆与活塞杆 22 不透色浆地隔离开， 从而色浆不会不利地影响活塞 杆 22在活塞缸 25 , 25A内的运动以及滚动抵接结构与斜盘 34的抵接。 具 体地， 如图 3-7具体示出， 该活塞 23包括多层间隔开的活塞件， 该多层活 塞件可以与活塞缸 25、 25A密封接合从而避免色浆从活塞 23前的活塞缸 25、 25A空间进入到其中有活塞杆 22的活塞缸空间。
为了进一步降低供应装置 1的运动和 /或摩擦部件的摩擦，所述供应装 置还可以包括套设活塞杆上的套筒件 10。 该套筒件 10可以固定安装在各 活塞缸 25、 25A内且可相对于活塞杆 22滑动。 该套筒件 10可以由低摩擦 材料、例如自润滑材料、如聚四氟乙烯制成。作为一个特别优选的实施例， 该套筒件 10 的内侧设置有多个凹槽， 许多滚珠被放置在凹槽内， 而活塞 杆 22优选相对于这些滚珠至少部分地滚动接触。
如图 5所示， 主轴 13形成有穿过缸体 3的杆部 11 , 所述杆部 11可以 在两端设置有轴承以方便主轴相对于缸体 3的转动。
具体地参考图 3、 7和 9 , 该供应装置 1还可以包括零位置指示机构， 其用于指示该斜盘相对于所述缸体转动的零位置。 在理想的无任何磨损和 无误差状态下， 该供应装置 1理论可以在任何一个位置开始无差别地供应 精确量的色浆。 但是由于存在着磨损， 且考虑到色浆供应的精确定量以及 大供应量的要求， 在本发明的一个特别优选的实施例中提供了根据本发明 的零位置指示机构， 从而该供应装置 1的任何一次供应可以且优选在规定 的零位置处开始。 通过这样设置， 在显著地提高转盘单圈供应的色浆量的 情况下， 仍能够保持该供应装置 1的相当高精度的定量供应色浆。
如图 7具体示出， 该零位置指示机构包括与转盘同步转动的零位置指 示盘 63 , 以及零位置传感器机构 58。 在此， 例如以斜盘最低点 （最薄部 位）转到供应装置 1 的固定坐标系的指定位置 （例如传感器机构 58所在 位置） 时为转盘的零位置， 例如图 10A的转动位置 I, 或者图 10B中活塞 机构 A所对应的位置。 在所示的实施例中， 零位置传感器机构 58包括第 一传感器 58A和第二传感器 58B。传感器机构 58通过传感器固定件 57固 定到与步进电机支架 68传感器支架 53上， 该传感器支架 53通过连接架 67与斜盘护罩 52连接。
如图 6所示， 所述供应装置 1还可以包括三通阀 18 , 所述三通阀构造 成选择性地允许从活塞缸 25、 25A排出的所述色浆流向供应装置的出口 0 或返回色浆源 S。 当供应机构 1例如为了回到零位置而空转时， 该三通阀 18可以切换到右边配置， 使得被泵出的色浆回到色浆源 S , 而在正常工作 中， 三通阀 18处于左边配置， 从而供应装置可以通过出口 0正常泵送、 供应定量色浆。 所述三通阀 18 可防止色浆长期停留在管道中引起堵塞， 又可使某段不需要使用的色浆回流到色浆源 S中。 具体地参考图 1、 5和 6, 该供应装置 1可以包括设置在活塞缸的出口 处或附近的第一、 动阀板 6, 该动阀板 6与斜盘同轴布置并同步转动。 此 外， 该供应装置 1还可以包括设置在活塞缸的出口和第一动阀板 6之间的 第二、 定阀板 5 , 该定阀板 5与斜盘同轴布置， 但不与其一起转动。
定阀板 5可以具有与色浆入口 2流体连通的第一定阀板开口 15 ,如图 显示为 1个。 定阀板 5还可以具有多个第二定阀板开口 16, 其优选与活塞 缸——对应。 如图所示， 该动阀板 6可以具有连通槽 17 , 其与第一定阀板 开口 15 连通且选择性地与第一部分的活塞缸连通， 从而允许色浆从色浆 源 S通过色浆入口 2、 第一定阀板开口 15、 连通槽 17、 相应的第二定阀板 开口 16进入该第一部分的活塞缸。
该第一部分活塞缸中的活塞 23 处于从该色浆源吸入色浆的活塞第一 冲程。 而该动阀板 6还具有小直径部分（见图 1 ), 从而允许第二部分的活 塞虹（以及相应的第二定阀板开口 16 )显露出来， 从而允许色浆被排出该 第二部分的活塞虹以及相应的第二定阀板开口 16并最终通过开口 0定量 供应。 该第二部分活塞缸中的活塞 23 处于将色浆排出该活塞缸的反向的 第二冲程。 此外， 动阀板 6还具有用于遮盖其中的活塞处于上止点或下止 点的活塞缸 25A的第三结构。 如图 4具体示出， 动阀板 6遮盖其中的活塞 处于下止点的活塞缸 25A以及相应的第二定阀板开口 16。 通过上述的阀 板配置， 提供了特别有效的供应色浆的方法， 且同时进一步提高了色浆配 发的精度。
优选该定阀板 5是耐磨材料制成。 可以想到， 可以不设置上述的定阀 板 5 , 或者缸体的端部具有上述定阀板的功能。
如图 1和 4所示， 主轴 13的一个端部还具有压紧机构 14, 其呈压簧 或其他合适结构且用于将动阀板和 /或定阀板紧压在缸体的端部上。
参考图 3和 4, 该供应装置 1还可以具有设置在缸体的出口端上的端 盖 41。该端盖 41与缸体限定出端盖腔 42且在端盖的出口处设置有允许色 浆流出该端盖腔的单向阀 45。 通过这种配置， 该供应装置 1 的端盖腔 42 通常是灌满色浆的， 且通过在驱动盘 34转动以使得活塞机构做冲程运动 时将一定量的色浆强制排出到端盖腔 42中， 那么可以克服单向阀 45将定 量（增量） 的色浆排出到供应装置 1的出口外。 通过这种设置， 供应的色 浆量精度更高， 色浆供应更稳定，例如大大降低了供应过程中的色浆损失。
下文将参考图 10A和 10B,作为举例描述根据本发明的色浆定量供应 装置 1的操作。 以设置有六个活塞机构 （活塞缸） A-F作为示例， 且以斜 盘的最低点绕逆时针依次转过圆周中均匀间隔的 12个转动位置 Ι-ΧΠ (各 间隔 30。）进行描述， 且假设转动位置 I正好处于上述的零位置。 在图 10A 中， 六个活塞机构（活塞缸） A-F非按照实际结构以示意方式画出。 其中： 位置 I： 活塞缸 A截止 （活塞机构下止点）、 D截止 （上止点）， 活塞 缸^ C注出 （第二冲程）， 活塞缸 E、 F吸入（第一冲程）；
位置 Π: 活塞虹 A、 B、 C注出， 活塞虹 D、 E、 F吸入；
位置 III: 活塞虹 C、 F截止， 活塞缸 A、 B注出， 活塞缸 D、 E吸入； 位置 IV: 活塞缸 A、 B、 F注出， 活塞缸 C、 D、 E吸入；
位置 V: 活塞缸 B、 E截止， 活塞缸 A、 F注出， 活塞缸 C、 D吸入； 位置 VI: 活塞虹 A、 E、 F注出， 活塞虹 B、 C、 D吸入；
位置 VII: 活塞缸 Α、 D截止， 活塞缸 E、 F注出， 活塞缸 B、 C吸入； 位置 VIII： 活塞虹 D、 E、 F注出， 活塞虹 A、 B、 C吸入；
位置 IX: 活塞虹 C、 F截止， 活塞缸 D、 E注出， 活塞缸 A、 B吸入； 位置 X: 活塞虹 C、 D、 E注出， 活塞虹 A、 B、 F吸入；
位置 XI: 活塞缸 B、 E截止， 活塞缸 C、 D注出， 活塞缸 A、 F吸入； 位置 ΧΠ: 活塞虹 B、 C、 D注出， 活塞虹 A、 E、 F吸入。
从上图可知， 对于六个活塞缸的配置， 从零位置开始， 每 60。 内会有 一个新的活塞机构处于斜盘的最低点。
下面结合图 10B , 示意性地描述根据上述活塞机构的行程与斜盘转动 角度的关系。 注意， 在图 10B中以斜盘的坐标系进行描述， 那么视作活塞 机构（活塞缸 )相对于斜盘以顺时针方向转动。 以在转动位置 I至 III之内 的转角 (即小于等于 60。 )为例， 那么相当于活塞机构（活塞缸）顺时 针转动了角度 o。在此， 只分析此时注出色浆的活塞机构（活塞缸） A、 B、 C。 活塞机构 （活塞缸） A-C 在转动之前具有在延伸穿过斜盘最高点和最 低点的直径上的一投影 （分别对应于 A、 B、 C ), 且在转动之后具有相对 于所述直径的另一投影 （分别对应于 A，、 B，、 C，）。 上述相应的投影之间 限定了投影间距 Ll、 L2、 L3 , 而将所述间距投影到具有斜盘角 β的斜盘 上即可获得活塞机构 A、 B、 C各自的行程 HI、 H2、 H3。
那么， 转盘 34转过转角 α , 供应装置 1所供应色浆量的理论值将是： V=OT2(H1+H2+H3) ;
其中， r是活塞缸的半径， 且假定各个活塞缸具有一样的径向尺寸。 同理， 则在上述转角 α中， 供应装置 1所吸入的色浆量也是 V。
因此， 本发明的色浆定量供应装置 1可以显著地供应更大量的色浆。 而且， 该色浆定量供应装置 1还能提供非常精确的定量供应、 且能提供尽 量小的单次最小供应量。 此外， 它还很耐用、 具有长的使用寿命。
本发明已参考前述的实施例进行了具体的示出和描述， 这仅是示意性 的。 本领域技术人员将理解可以对本文所描述的本发明的实施例进行多种 变型来实施本发明而不背离由后附的权利要求书及其等同限定的本发明 的精神和范围。 本发明的上文描述应理解为包括本文描述要素的所有新颖 的和非显而易见的组合。

Claims

权 利 要 求
1. 一种色浆定量供应装置， 其包括：
色浆源；
缸体， 具有绕其周向布置的多个活塞缸；
与该缸体大致同轴布置的带斜面的斜盘， 构造成能绕其纵轴线相对于 所述缸体转动；
多个活塞机构， 各活塞机构包括活塞杆和与所述活塞杆连接的活塞， 所述活塞杆具有抵接所述斜面的滚动抵接结构， 所述活塞构造成可借助于 所述斜盘的转动在相应的活塞缸中做冲程运动；
用于致动所述斜盘的致动器；
操作连接到所述致动器以控制所述斜盘的转动量的控制器；
用于配发色浆的出口； 以及
用于沿轴向将所述滚动抵接结构偏压向所述斜面的轴向复位机构； 其中， 所述装置包括周向复位机构， 其构造成在斜盘转动过程中可施 加周向回复力到该滚动抵接结构以使该滚动抵接结构趋向于回复与所述 斜面的预定抵接状态；
其中， 各活塞的冲程运动包括第一冲程和反向的第二冲程， 在第一冲 程中， 所述活塞所在的活塞缸与所述色浆源连通从而从该色浆源吸入色 浆， 在第二冲程中， 所述被吸入的色浆被排出该活塞缸。
2. 根据权利要求 1所述的装置， 其特征是， 所述装置还包括零位置指 示机构， 用于指示该斜盘相对于所述缸体转动的零位置。
3. 根据权利要求 1所述的装置，其特征是，所述致动器包括步进电机。
4. 根据权利要求 1所述的装置， 其特征是， 所述轴向复位机构和周向 复位机构共同地由一弹簧构成， 所述弹簧轴向地设置在所述滚动抵接结构 和所述缸体之间且具有固定连接到滚动抵接结构的第一端和固定连接到 所述缸体的第二端。
5. 根据权利要求 1所述的装置， 其特征是， 所述活塞杆包括杆体， 所 述杆体具有连接所述活塞的第一端和与所述滚动抵接结构可转动地连接 的第二端。
6. 根据权利要求 5所述的装置， 其特征是， 所述滚动抵接结构包括承 座和可枢转地安装在该承座上的滚动轴承件。
7. 根据权利要求 6所述的装置， 其特征是， 所述滚动轴承件包括安装 在承座上的枢轴、 套设在枢轴上的轴承和套设在所述轴承上的外构件， 所 述外构件至少部分地限定出抵接所述斜面的球形接触面。
8. 根据权利要求 1所述的装置， 其特征是， 所述活塞构造成使得活塞 缸内的色浆与活塞杆不透色浆地隔离。
9. 根据权利要求 1或 2所述的装置， 其特征是， 所述装置还包括三通 阀， 所述三通闹构造成选择性地允许从所述活塞缸排出的所述色浆流向所 述出口或返回所述色浆源。
10. 根据权利要求 1所述的装置， 其特征是， 该装置包括设置在活塞 缸的出口附近的阀板， 该阀板与斜盘同轴布置并同步转动且具有限定从所 述色浆源到第一部分的所述活塞缸的色浆通路的第一结构和允许色浆从 第二部分的所述活塞缸排出的第二结构； 所述第一部分活塞缸中的活塞处 于第一冲程； 所述第二部分活塞缸中的活塞处于第二冲程。
11. 根据权利要求 11所述的装置， 其特征是， 所述阀板还具有用于遮 盖第三部分的所述活塞缸的第三结构， 所述第三部分活塞缸中的活塞处于 第一冲程和第二冲程之间的上止点或下止点。
12. 根据权利要求 1所述的装置， 其特征是， 所述出口还设置有单向 阀。
13. 根据权利要求 1所述的装置， 其特征是， 所述装置还包括固定安 装在各活塞缸内且可滑动地套设活塞杆上的套筒件。
14. 一种色浆定量供应装置， 其包括：
色浆源；
缸体， 该缸体具有绕其周向布置的多个活塞缸；
与该缸体大致同轴布置的带斜面的斜盘， 所述斜盘构造成能绕其纵轴 线相对于所述缸体转动；
多个活塞机构， 各活塞机构包括抵接所述斜面的活塞杆和与所述活塞 杆连接的活塞， 所述活塞构造成可通过所述斜盘的转动而在相应的活塞缸 中做冲程运动；
用于致动所述斜盘绕纵轴线相对于所述缸体转动的致动器； 操作连接到所述致动器以控制所述斜盘的转动量的控制器； 和 用于配发色浆的出口；
其中， 各活塞的冲程运动包括第一冲程和反向的第二冲程， 在第一冲 程中， 所述活塞所在的活塞缸与所述色浆源连通从而从该色浆源吸入色 浆， 在第二冲程中， 所述被吸入的色浆被排出该活塞缸；
其中， 所述装置还包括零位置指示机构， 用于指示该斜盘相对于所述 缸体转动的零位置。
15. 根据权利要求 14所述的装置， 其特征是， 所述装置还包括设置在 活塞缸和出口之间的三通阀， 该三通阀构造成选择性地允许从所述活塞缸 排出的所述色浆流向所述出口或返回所述色浆源。
16. 根据权利要求 14所述的装置， 其特征是， 所述致动器包括步进电 机。
17. 根据权利要求 14所述的装置， 其特征是， 所述装置包括设置在活 塞缸的出口处的阀板， 所述阀板与斜盘同轴布置并同步转动且具有限定从 所述色浆源到第一部分的所述活塞缸的色浆通路的第一结构和允许色浆 从第二部分的所述活塞缸排出的第二结构； 所述第一部分活塞缸中的活塞 处于第一冲程； 所述第二部分活塞缸中的活塞处于第二冲程。
18. 一种调色机， 其包括机架和支承至少一个根据权利要求 1 或 14 所述的色浆定量供应装置。
PCT/CN2013/072214 2012-06-01 2013-03-06 调色机的色浆定量供应装置 WO2013177965A1 (zh)

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