CN1194610A - Roller temperature controlling system - Google Patents
Roller temperature controlling system Download PDFInfo
- Publication number
- CN1194610A CN1194610A CN 96196643 CN96196643A CN1194610A CN 1194610 A CN1194610 A CN 1194610A CN 96196643 CN96196643 CN 96196643 CN 96196643 A CN96196643 A CN 96196643A CN 1194610 A CN1194610 A CN 1194610A
- Authority
- CN
- China
- Prior art keywords
- roller
- mentioned
- temperature
- valve
- heat transfer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Abstract
A roller (1) as a control object and an apparatus (10) for supplying a heat transfer medium are connected through at least one valve-pipe assembly (11) comprising a tubular member (14) and a valve (15). On the basis of the control signal outputted from a temperature control portion (21), a flow control portion (20) outputs ON/OFF control signals to a valve driving portion (20) so as to actuate the individual valves. As a result, the valves are individually opened or closed and thus the flow rate of the heat transfer medium to the roller is allowed to quickly follow the temperature change of the roller surface so that a desirable roller temperature can be maintained. Since the ON/OFF type valve is used for the flow rate control of the heat transfer medium, the apparatus becomes economical and small in size. One or more valve tubular members or bypass pipings can be selected in accordance with the various conditions of the roller system, and roller temperature control can be carried out suitably in accordance with various apparatuses.
Description
Technical field
The present invention relates to the roller temperature controlling system that can on the rollers of printing with heating or cooling roll and machineries such as plastic pellicle working machine, papermaking equipment and fiber machinery such as the ink roller of printing machinery, dampening roller, use, particularly be suitable for to be used for cooling off or the cooling of warm-up mill or the medium of heating (heat transfer medium) thus the flow temperature of controlling the pair roller outer peripheral portion regulate and make it to remain the roller temperature controlling system of target temperature.
Background technique
The roller that is used for above-mentioned various machineries, have that roller and roller be rotated in contact and be used for to the roller that cools off with the contacted machining object of roller etc.For example, the ink roller of printing machinery be at the black case of storage to many of configurations between the version body and by rotation contact with the surface of black sequential transfer to the roller of adjacency, edition body gets on thereby be applied to.This roller produces rolling friction when the limit contact edge rotates, its frictional heat will make the temperature of China ink on the roller raise.
In the specification of China ink its optimum working temperature and temperature range have been made regulation, and the rising of roller temperature will make the specifications parameter of China ink not be met, become the major reason that printing quality reduces.For example, carry out the occasion of driography, generally the optimum temperature with China ink is defined in about 30 ℃.Therefore, when above-mentioned rolling friction causes the ink roller surface temperature to exceed the working environment of China ink, will become the major reason that printing quality descends.
And for the occasion of dampening roller, then will dampening roller itself be heated, cool off, be controlled on the suitable temperature.
Under such background, people develop the cooling technology that the rising that suppresses roll surface temperature makes it to keep the roller of appropriate temperature.The type of cooling of roller has water such as making underground water variety of way such as circuit water-cooled, the mode of blowing a cold wind over to the roller surface and heat pipe mode in roller.
As the example of this class cooling unit, the roller cooling unit of disclosed printing machinery in Japanese kokai publication sho 63-5944 communique is for example arranged.And the ink roller of heat tube structure is for example disclosing in Japanese kokai publication sho 63-47144 communique, the Japanese kokai publication sho 59-73952 communique etc.
Yet, use the cooling roll of heat transfer medium to have following shortcoming, promptly need will water to feed the recycle unit of media such as the water flowing means of going in the rotation roller inside and water and refrigeration equipment etc., make the volume of device very big, moreover, the rely adjust system of high-efficiency operation of system is complicated, need carry out loaded down with trivial details maintenance work.
And pass through to change the mode that the temperature regulation of cooling off (or heating) medium is cooled off (or heating) roll temperature, because of the thermal capacity of cooling (or heating) medium is big, so relatively poor to the followability of cooling (or heating) roll temperature variation.Though in order to change the amount of infusion of cooling (or heating) medium, adopt proportional control type valve that amount of infusion is finely tuned exactly, but the valve price of the type is very high, is unsuitable for industrial employing from economic considerations.
Have again, adopt cooling (or heating) roller of heat pipe, because of the working principle of its structure is to carry out work by being filled in the heat transmission that working medium evaporation in the seal space and condensation reach, so with to compare thermal inertia in the mode of the direct cooling roll of cooling medium big.Therefore, when the mode of the amount of infusion compensation roll temperature of cooling off (or heating) medium to change was cooled off (or heating), it was inevitable that the adjusting of pair roller temperature lags behind slightly.Particularly to the control of amount of infusion when more coarse, the hysteresis that the roller temperature is regulated will increase when control mode is incorrect.
Heat pipe mode in the past is sealed in the interior cooling medium of roller because of action of centrifugal force when the roller high speed rotating, be attached to uniform membrane stage on the internal surface of roller.Because the existence of the film of this cooling medium can occur causing phenomenons such as efficiency of cycle reduction and roll surface temperature rising because of thermal resistance increases and produces regenerative effect.Promptly exist when the roller high speed rotating, work medium for heat pipe forms the bigger problem of heat waste of uniform liquid film, thermal cycle on the perimeter surface in roller.
The temperature variation that the purpose of this invention is to provide the pair roller outer peripheral portion has good followability, can accurately finely tune the roller temperature controlling system of roller outer peripheral portion temperature.
Another object of the present invention provides the efficiency of cycle of the work medium for heat pipe when improving the roller rotation and roll surface temperature can be adjusted to the roller that is used for roller temperature controlling system of appropriate value.
Disclosure of an invention
The invention provides a kind of like this roller temperature controlling system, promptly have and be formed at the heat absorption heating unit of transmission roller body inside, carry out heat by heat transfer medium, make heat transfer medium flow out flow into this heat absorption heating unit and, it is characterized in that: be formed in a kind of heat tube structure that is filled with work medium for heat pipe in heating unit and the roller outer peripheral portion space between the two of absorbing heat the temperature regulation of roller outer peripheral portion roller temperature controlling system to desired value; And have: heat transfer medium is regulated the heat transfer medium temperature regulation means maintain on the both fixed temperatures; Heat transfer medium after being used for regulating with these heat transfer medium temperature regulation means offers the tubular part of heat absorption heating unit; Be located at the valve on this tubular part; Produce the temperature control means of valve drive signal according to the direct or indirect detected temperature information of the temperature of pair roller outer peripheral portion; And according to the valve drive signal that this temperature control means is exported valve is carried out break-make and control, make valve comprise the flow control means of carrying out on-off action between two kinds of set apertures of standard-sized sheet or full cut-off.
And another invention provide have be formed at roller body inside, carry out the heat absorption heating unit that heat is transmitted by heat transfer medium, this heat transfer medium is flowed out flow into this heat absorption heating unit and, it is characterized in that: be formed in the heat tube structure that is filled with work medium for heat pipe in the space that absorb heat heating unit and roller outer peripheral portion form between the two temperature regulation of roller outer peripheral portion roller temperature controlling system to desired value; And have: be equipped with main valve, with heat transfer medium be sent to the heat absorption heating unit main line; Give the main valve of this main line form bypass, be at least 1 bypass conduit; Be provided in the by-pass valve in this bypass conduit; Also have:, produce the temperature control means of the valve drive signal that drives by-pass valve according to the temperature information that pair roller outer peripheral portion temperature directly or indirectly records; The valve drive signal of exporting according to this temperature control means makes valve carry out the flow control means of on-off action.
Have again, another invention provides a kind of like this roller, promptly have and be formed at roller body inside, carry out the heat absorption heating unit that heat is transmitted by heat transfer medium, the roller that above-mentioned heat transfer medium is flowed out to this heat absorption heating unit, it is characterized in that: be a kind of open end of cylindric roller body with flange plate sealing and with its inner formed cylindrical space as heat tube structure, the roller that is used for roller temperature controlling system, be provided with the ripple that can produce ripple in the roller body inside of this roller and produce means, this ripple can make formed on the roller inner peripheral surface with the rotation of roller body, be sealed in the film disorder of inner liquid phase medium.
Brief description of drawings
Fig. 1 is the sectional view of basic structure of showing the roller of heat tube structure.
Fig. 2 is the pie graph that comprises control system of the present invention's temperature controlling system.
Fig. 3 has the independently pie graph that comprises control system of the roller temperature controlling system of cooling unit and heating apparatus.
Fig. 4 is the pie graph that comprises control system of roller temperature controlling system with the assistant heating means on the roller surface of directly heating.
Fig. 5 is the pie graph that comprises control system of the roller temperature controlling system of other forms of implementation.
Fig. 6 is the sectional view of the roller of other forms of implementation.
Fig. 7 is the A-A sectional view of roller Fig. 1 when static.
The A-A sectional view of Fig. 1 before film formed when Fig. 8 was the roller rotation.
The A-A sectional view of Fig. 1 when Fig. 9 forms film when being the roller rotation.
Figure 10 is the ideograph that the roller surface heat transmits.
Figure 11 is a sectional view of showing the basic structure of roller of the present invention.
Figure 12 is that figure cuts open in the office that shows ripple generation means embodiment.
Figure 13 is that the explanation ripple produces the figure of the effect of means.
Figure 14 cuts open figure with the office of the roller of recess formation ripple generation means.
Figure 15 is disposed at protuberance on the roller inner peripheral surface and produces the sectional view of the roller of means as ripple.
Figure 16 cuts open figure with the office that ripple generation means are located at roller on the flange surface.
Figure 17 cuts open figure with the office that ripple generation means are located at roller on the flange plate inwall.
Figure 18 cuts open figure with the office of the roller of the continuous curve surface formation ripple generation means of flange surface.
Figure 19 cuts open figure with the office of the roller that is located at the rib shape ripple production part formation ripple generation means on the flange plate inwall.
Figure 20 is that figure cuts open in the office that shows the variation of rib shape ripple production part.
Implement best mode of the present invention
For the present invention is described in detail in detail, will be in conjunction with the accompanying drawings.
Fig. 1 illustrates the basic comprising of the roller of heat tube structure.Heat absorption generating heat department among the present invention is the functional part that is used for carrying out following heat exchange, promptly at the heat of roller outer peripheral portion, or absorbs heat with heat transfer medium through work medium for heat pipe, or heats with heat transfer medium.
Hollow roller 3 becomes for the path 6 that is used for cooling off or heating the cooling of work medium for heat pipe or the medium of heating (heat transfer medium) circulation.Heat transfer medium can adopt cooling or heating medium, for example oil, water, antifreeze liquid, humidifying air, gas-liquid mixture (spray) and the low boiling point working medium (freon, ammonia) etc. that adopted usually.Preferably can be used for machine oil or lubricant oil that the mechanism of the machinery that is assembled with roller of the present invention is partly cooled off and lubricates etc. by employing, or they be equal to product, thereby can make its generalization and realize the simplification of device structure, and the harm that can avoid the mixing because of variety classes oil to cause.
In the above-mentioned roll structure, when carrying out the cooling of roller, be when the temperature of roller outer peripheral portion surpasses desired value, cool off by the working medium heat absorption of inside.And when carrying out the heating of roller, be when the temperature of roller outer peripheral portion is lower than desired value, heat by the working medium heat supply.Like this, make heat transfer medium with the cooling medium or the medium of heating, can be on desired value with the fine tune temperature of roller outer peripheral portion.That is, though working medium is and the path of quill shaft 36 in carry out heat exchange between the heat transfer medium that flowed, the flow of heat transfer medium that can be by control this moment make the temperature regulation of pair roller outer peripheral portion carry out with good response characteristic.
Secondly, the roller temperature controlling system with heat tube structure is described.Fig. 2 illustrates the basic comprising of roller temperature controlling system.Wherein, roller temperature controlling system is a controlling object with a plurality of roller groups, can certainly be object with a roller.Cooling and/or heating apparatus 10 have constituted the means of regulating the heat transfer medium temperature, a kind of like this function on the necessary temperature of the temperature adjustment of carrying out the roller outer peripheral portion of the temperature regulation with heat transfer medium of being flowed in the quill shaft 3 with roller 1.Here, the heat transfer medium through overregulating send with pump pressure, and flows in the quill shaft of each roller through valve tubular part 11.Valve tubular part 11 is connected with the downstream pipeline joint 13 that is configured in roller 1 one sides with the upstream joint 12 that is configured in cooling and/or heating apparatus 10 1 sides respectively.Be connected by these pipeline joints between the quill shaft 3 of cooling and/or heating apparatus 10 and roller.
Valve tubular part 11 is that tubular part 14 is constituted with valve 15 composition groups (unit), and valve tubular part group can be equipped with a plurality of.In this example, with 3 valve tubular part groups will cool off and/or heating apparatus between couple together.To the occasion that constitutes with a plurality of valve tubular part groups, be to realize by valve break-make under predetermined condition of controlling each valve tubular part group to the control of valve 15.That is, the flow of heat transfer medium is to regulate by the valve group control that the break-make (switching) by all valves (valve group) realizes.Make that by the make-to-break ratio that changes each valve the flow of a valve tubular part group is controlled.
The control of the aperture of valve is carried out like this, promptly the standard-sized sheet of standard-sized sheet or full cut-off close action, two kinds of apertures of appointment for example 80% aperture close the on-off action that carries out with specifying aperture to combine with on-off action or above-mentioned standard-sized sheet between 20% aperture.Valve can adopt cheap and small-sized break-make control type valve, for example solenoid valve.And the kind of valve, number determine according to following parameter, and promptly the temperature of roller outer peripheral portion is to the two poor and roller temperature adjustment target temperature and roller outer peripheral portion temperature at that time poor of the temperature of the size of the variance ratio of time, heat transfer medium and roller temperature adjustment target temperature.
With reference to Fig. 2 the control system of roller temperature controlling system is described.In this example, be that the outer peripheral portion temperature of the representative roller among a plurality of roller groups is measured and this detected temperatures is imported to temperature control unit 21 as roller temperature information.Each roller temperature control signals separately that flow controlling unit 20 is exported according to temperature control unit 21 is exported to valve driver element 22 with the valve group's of each valve tubular part group break-make control signal.Temperature control unit 21 is according to the temperature information of the roller outer peripheral portion that is gone out by the roll surface temperature sensor, the perhaps temperature information of roller outer peripheral portion and from temperature information, the setting temperature of heat transfer medium of cooling heating apparatus will be at the valve drive signal of the valve of each valve tubular part group to flow controlling unit 20 outputs.
Here, can take the circumstances into consideration as required to use by the detected room temperature of temperature sensor.As the temperature information under this occasion, for the temperature and the room temperature of roller outer peripheral portion or be temperature, room temperature and the heat medium temperature of roller outer peripheral portion.Valve driver element 22 is according to from the valve drive signal of flow controlling unit 20 each valve of valve tubular part group being carried out break-make control independently of one another.Though shown in Figure 2 is the hierarchy of control of 2 rollers, also can be equally applicable to by 1 roller or more than 2 the roller group that roller constituted.
This form of implementation is by analyzing from the temperature information of the heat transfer medium of cooling and/or heating apparatus the flow of the heat transfer medium that will supply with to be controlled, thereby can improve the thermoregulator controllability of roller outer peripheral portion.
According to this form of implementation, be the flow generation transient change of break-make by the control valve heat transfer medium that makes donor rollers, so improved the response characteristic with respect to roller outer peripheral portion temperature variation, compensation roll temperature accurately.
What this form of implementation was illustrated is by the pipeline joint valve tubular part to be connected in a kind of like this form of implementation between cooling and/or heating apparatus and the roller indirectly, but also can not use the pipeline joint of one or both sides and all be directly connected in cooling and/or heating apparatus and roller between the two with a side or with both sides.In addition, also can constitute following closed-loop system, be about to and the working medium of each roller between finished the heat transfer medium that flows out from each roller after the heat exchange and be transmitted back to cooling and/or the heating apparatus with row again and utilize a kind of like this system.
Below other forms of implementation are described.The system that Fig. 3 illustrates other forms of implementation constitutes.Though be the roller temperature controlling system of forming by 1 roller shown in the figure, even the roller temperature controlling system of being made up of a plurality of rollers also can be with the same realization that constitutes.Present embodiment is applied in the following control system, the effect of this control system is to desired value by cooling or warm-up mill and with the temperature regulation of roller outer peripheral portion, it is characterized in that having independently cooling unit and heating apparatus, they supply with the cooling medium and the medium of heating by special valve tubular part group separately.
Among Fig. 3, cooling unit 10A sends into separately heat transfer medium with valve tubular part 11B to roller with valve tubular part 11A, heating apparatus 10B.Cooling is formed group with valve tubular part 11A by tubular part 14A and valve 15A and is constituted.And heat and valve tubular part 11B is with tubular part 14B and valve 15B composition group and constitute.Control to valve 15A, 15B is same with the embodiment of Fig. 2, adopts break-make control.According to such structure, make the conversion of cooling or heating become easily, and can make the heat transfer medium of this required flow in conversion back flow to roller rapidly that therefore, the followability that changes with respect to the roller temperature is improved.
Constitute cooling with and heating can followingly select with the quantity of the valve tubular part separately of valve tubular part group, even cooling with and heating with being 1 group, or a certain be 1 group and another kind of for organizing more, or the two is and organizes etc. more.
Adopt following heating equipment as the complementary means of heating, promptly be used for blowing warm air fan heating equipment that warm braw heats or the infrared heater heating equipment that heats with infrared heater etc. to the roller outer peripheral portion.Example shown in Figure 4 is, infrared heater 16 and roller outer peripheral portion to configuration mutually, are undertaken by heating equipment 23 the energising control of this infrared heater 16.Owing to the energising of the command control infrared heater that sends according to temperature conditioning unit 21, thereby the rising of roll surface temperature is very fast, therefore, uses heating equipment when starting working, and can make the temperature of roller outer peripheral portion reach desired value very soon, shortens the time of trial run.Have again, when trying out, can outside the inside of roller, heat by supplying with in addition, therefore can make the temperature of roller outer peripheral portion reach desired value quickly from cooling and/or the heating medium of heating apparatus.
As other forms of implementation of the present invention, the following formation of roller temperature controlling system shown in Figure 5, being used for making heat transfer medium flow into the Flow-rate adjustment that is equipped with heat transfer medium on the main line of roller body is a certain amount of main valve, be provided with the bypass conduit that this main valve is shunted, be equipped with the by-pass valve that can carry out on-off action on this bypass conduit.Be simplified illustration, a bypass conduit and valve described at this, yet in being also contained in certainly by a plurality of bypass conduit and valve institute constitutor.The number of bypass conduit can similarly be determined with the illustrated valve tubular part number of the embodiment of Fig. 1.
30 pairs of flow controlling units donor rollers according to the valve drive signal of temperature conditioning unit 40 outputs, the circulation means 35 that is cooled both is adjusted to the flow of the cooling medium of fixed temperature and controls.For this reason, flow controlling unit 30 is connected on the quill shaft 3 of roller 1, and it is made of main valve 31, bypass conduit 32, by-pass valve 33 and electrohydraulic valve actuator machine 34; The path that this main valve 31 is contained in being located at said roller is supplied with on the main line 7 of cooling medium (heat transfer medium), the quantity of forming the bypass conduit 32 of bypass for said main valve 31 is more than one and one, said by-pass valve 33 is contained in this bypass conduit, and said electrohydraulic valve actuator machine 34 is used for driving by-pass valve 33 and opens and closes.The aperture of main valve 31 is set (fixing) and is born certain flow for the ability that enables the cooling-cycle device 35 required with respect to the compensation roll temperature.By-pass valve 33 then carries out on-off action comprising between two kinds of set apertures of standard-sized sheet or full cut-off, changes the flow of bypass conduit by the number of times that starts work in its unit time, thereby the flow of main line 7 is controlled.
Cooling-cycle device 35 except that have will give roller the temperature temperature adjustment of heat transfer medium to the function of set value, also have the heat transfer medium that returns from roller handled the function of utilizing with row again.When use was for example oily, storing in oil storage tank 36 had oil 37 as cooling medium.This oil 37 is sent by pump 38, by being sent to flow controlling unit 30 behind the cooler 39.The oil cooling that cooler 39 is sent pump 38 here but, temperature adjustment is to certain both fixed temperatures.
In this roller temperature controlling system, carry out corresponding on-off action according to the temperature equitemperature information of roller temperature, heat transfer medium, thereby the flow of the heat transfer medium that flows to roller is controlled, the roller temperature is adjusted to desired value by the valve that makes bypass conduit.If with this bypass conduit and valve composition group, use a plurality of groups according to the temperature specification of roller, response accuracy fine setting roller temperature that then can be higher, when among the roller group who is applied to constitute by a plurality of rollers, can control the flow of the heat transfer medium of supplying with to each roller according to the temperature information of each roller, thereby each roller is carried out temperature adjustment.
Particularly be applied to the occasion in the ink roller of printing press, be no more than about normal temperature+30 ℃ because the roller temperature is the highest, and the highest room temperature that is no more than of dampening roller, so variation of temperature is not too big.Therefore, take the switching of main valve is fixed, the switching of by-pass valve is finely tuned a kind of like this control mode in the break-make mode with the control that main valve and by-pass valve carry out, its result can obtain the identical effect of occasion with usage ratio control type valve.
This form of implementation is to cooling off the roller temperature controlling system of compensation roll temperature to be illustrated by pair roller, adopts the structure of heating that medium is made heat transfer medium and coming the compensation roll temperature by heating but also system can be made.In addition, cooling can also be used the heat transfer medium supplier with the usefulness of heating independently to be provided with, they are controlled separately respectively.
What each form of implementation of the invention described above was illustrated is the example that is applied to by being filled with in the space between roller body and the quill shaft in the roller temperature controlling system that roller constituted work medium for heat pipe, that make intermediate heat medium mobile heat tube structure in quill shaft, but is not limited to this roll structure.For example, also can be the heat pipe of following type, promptly be provided with fan in the outside of roll shaft, carry out the heat exchange between the two of work medium for heat pipe and heat transfer medium by this fan.For using heat pipe the mode that fan cools off is set, for fan being arranged at the end of roll shaft, can contact with on every side machinery (parts) or do not adopt under the situation in the space of obstruction mutually guaranteeing to have.But, be too narrow to 2-3cm, fan external diameter in the space circumscribed occasion can not be too big etc. be arranged, consequently, the surface area of fan is that heat transfer area can not be very big, can not play a role and the cooling capacity deficiency effectively even increase the amount of cooling (or heating) medium, with respect to the followability deficiency of roller temperature variation.Therefore, can make heat transfer medium solve the problems referred to above by employing to the structure type that quill shaft flows.
And be applied to print with the occasion in ink roller and the dampening roller, though for example can adopt roller temperature that detects four unit and the structure of the flow of the heat transfer medium of each unit being controlled with this testing result to four color printing, but because the roller temperature is subjected to the very big influence of print speed printing speed and room temperature, and the influence of print color is less, remove to control the flow of all four looks with roller temperature of the same colour even die, also can not cause printing quality to reduce.Therefore, control gear is simplified, also be helped reducing cost.
In addition, the heat absorption heating unit is a two-layer pipe as shown in Figure 6, promptly by the two-layer pipe that constitutes to the other end outer tube 50 that extend, that its end is closed and the interior pipe 51 that is located at outer tube inside from an end in roller body 2 inside; One end of interior pipe 51 opens wide near the outer tube the other end, and the other end of interior pipe 51 stretches out from the outer tube 50 that extends to the outside of roll body 2.For the inflow and the outflow of heat transfer medium, the outer tube 50 that extends to outside the roller body 2 is connected with the heat transfer medium pipe arrangement by swivel joint (dotted portion among the figure) with interior pipe 51.Pipe in heat transfer medium flows into by swivel joint, pipe front end opening flows to outer tube in this, in passing between pipe and the outer tube and flow out by swivel joint.In flowing through, heat transfer medium between pipe and the outer tube time, and carries out heat exchange between the work medium for heat pipe of roller body.
Form of implementation to the roller with heat tube structure that is applicable to roller temperature controlling system of the present invention describes below.
When roller 1 from non-rotating state (Fig. 7) when beginning to rotate, when act on the gravity that is enclosed in inner thermal cycle cooling medium (liquid phase medium) 6 and with the roller inner peripheral surface between the contact resistance that produced during greater than centrifugal force, will be state shown in Figure 8.Under this state, near the thermal cycle cooling medium 68 places point that breaks away from the roller inner peripheral surface 7, heat exchange is carried out significantly.
Figure 9 shows that when roller shown in Figure 11 rotation, act on the state of centrifugal force during that is enclosed in inner thermal cycle cooling medium 6 greater than other external force.Under this state, it is uniformly membranaceous 9 that the thermal cycle cooling medium becomes on roller inner peripheral surface 7, at this moment, because roller wall self thermal resistance is added the thermal resistance of thermal cycle cooling medium, will cause heat exchange not carry out effectively.In addition, transmission about heat, Figure 10 illustrates that roller forms on the roller wall 4 when rotated becomes membranaceous cooling medium 6, and load 60 is illustrated in thermal resistance 61 from the roller wall to evaporation (heat exchange) 63, directly evaporation and two kinds of situations of evaporating through the thermal resistance 62 of membranaceous cooling medium again.
For improving above-mentioned state, can adopt the structure of when producing centrifugal force, impelling the liquid film disorder.Hereinafter the structure to the main roller segment of present embodiment describes in conjunction with Figure 11.Roller is made up of roller body 70 and running shaft 71, and with flange plate 72 combinations, its inside forms space 74 with these two parts.The space 74 of roller is as heat pipe, and by carrying out thermal cycle between the fluid of pipeline in the running shaft 75.On the two boundary part 76 that connects in mutually of roller body 70 and flange plate 72, on circumference, be provided with highly one or more projections 77 as illustrated in fig. 12 for several millimeters.
For example, establishing the cooling target is 30 ℃, for the ink roller that does not have projection, rises to 30 ℃ immediately under the rotational speed more than 100 rev/mins, reaches 40～50 ℃ afterwards, uncontrollable to target temperature.And for the present invention, the result so that condition same as described above experimentizes can be controlled to 30 ℃ ± several ℃ under 700 rev/mins rotational speed.
The projection 77 of present embodiment has constituted the ripple that produces the ripple that makes the liquid film disorder that is formed on the roller inner peripheral surface and has produced means.Produce means as ripple, be with as constituting in the above-described embodiments, but also can be recess 77a opposite, as shown in figure 14 to the projection 77 that is formed at the outstanding protuberance of roller body volume inside.This recess 77a can be formed by pit or groove.Be separated by in this example 90 ° and disposed 4 projections 77, but said interval also can be different with this example.In addition, as long as projection 77 has one at least, its quantity should consider that the balance of roller rotation suitably selects.In addition, the position that is provided with about projection, also be not limited to above-mentioned boudary portion, so long as can play the position of effect of the present invention and effect, all can near the boudary portion or on the internal face (with reference to Figure 15) of boudary portion roller body far away again or flange surface described later.
Other embodiments to ripple generation means describe below.Figure 16 shows that the 2nd embodiment's ripple produces the roll structure of means.The feature of present embodiment is to have a wave inception portion, and the face 80 of the flange plate 72 that combines with roller body 70 that this wave inception portion is had is with roll shaft off plumb face, promptly with the flange surface 80 of set angle tilt.The effect of the centrifugal force (with respect to the radial power of running shaft) that the variation that non-perpendicular flange surface 80 leans against the contact resistance between roller when rotation and the working medium and rotating force are produced and on the roller internal face, produce the component of parallel (paralleling) with running shaft.Therefore, constantly produce the strip ripple that causes because of the contact resistance variation.Consequently, can make the single single liquid film disorder that rotation produced, avoid heat savings in liquid film and hinder the phenomenon that heat pipe carries out heat exchange and take place.
Figure 17 illustrates the 3rd embodiment's roll structure.In the present embodiment, the flange surface of the flange plate 72 that combines with roller body 70 is made non-planar surface.Specifically be exactly, be provided with step 81, form surperficial inconsistent surface of discontinuity 82.In addition, form continuous curved surface 83 as illustrated in fig. 18.
When roller rotates, surface of discontinuity 82 and continuous curve surface 83 in the variation of resistance that contacts with respect to working medium and position and the centrifugal force that produces because of rotation (radial power) effect down with respect to running shaft, the component of generation parallel (paralleling) on the inner peripheral surface of roller with running shaft.So, constantly produce the strip ripple that the variation because of contact resistance produces, play effect and the effect same with the 1st and the 2nd embodiment.
In addition, in the 2nd and the 3rd embodiment,, then will hinder roller steadily to rotate if the variation of flange surface is excessive, so for the angle of inclination of flange surface with the size of the step when forming surface of discontinuity etc., should be by trying the selection optimum value out.
And produce other embodiments of means as ripple, and can also adopt structure shown in Figure 19, promptly the rib shape ripple production part 84 with the surface on the different direction that is in to tilt with respect to roll shaft is being set on the flange surface; Or adopt structure shown in Figure 20, promptly have the rib shape ripple production part 85 that is in respect to the surface on the true dip direction of roll shaft in setting on the flange surface.
According to present embodiment, excellent implementation result such as be expected to obtain and help reducing cost simple in structure, easy to manufacture.
The possibility of industrial utilization
Owing to be that valve to the valve of valve tubular part and bypass conduit carries out break-make control, and make its Comprise between two kinds of set apertures of standard-sized sheet or full cut-off and carry out on-off action, thereby can make heat The flow of Transfer Medium changes rapidly corresponding to the variation of roller outer peripheral portion temperature thereupon, improves and heat The plumber carries out the response characteristic of heat exchange as medium. Thus, can the temperature of roller outer peripheral portion is little Transfer to desired value. Owing to use break-make type valve, so can produce dress cheap and that volume is little Put.
In addition, owing to can according to all conditions of roller temperature controlling system, the number of valve tubular part be established For a plurality of, and the number of bypass conduit is chosen to be one or more, so can realize being suitable for each Planting the roller temperature of device regulates. For the roller of heat pipe structure, when adopting heat transmission medium is flowed out When flowing into the structure of quill shaft, can do the axle internal diameter more greatly, its result will reduce flow resistance and Obtain high heat exchanger effectiveness.
Heat transmission medium preferably uses machine oil or lubricating oil, or with the equal oil plant of above-mentioned oil, this Can make itself and main frame oil plant general, the simplification device structure.
In addition, ripple is set on the inner peripheral surface of the roller of heat tube structure produces means, the film disorder of the working medium that on the roller inner peripheral surface, forms in the time of can making the roller rotation, realize high efficiency heat exchange, thereby roll surface temperature is remained on the reference value equably, improve for example end product quality of goods such as printedmatter.
Claims (30)
1. roller temperature controlling system, have be formed at roller body inside, by the heat absorption heating unit that heat transfer medium carries out the transmission of heat, make this heat absorption heating unit of above-mentioned heat transfer medium inflow and outflow and with the temperature adjustment of roller outer peripheral portion to desired value, it is characterized in that:
Make a kind of like this heat tube structure, promptly be filled with work medium for heat pipe in the space that between above-mentioned heat absorption heating unit and above-mentioned roller outer peripheral portion, forms; And have:
Above-mentioned heat transfer medium is regulated both means of fixed temperature that are maintained at;
Be used for the tubular part that to supply with to above-mentioned heat absorption heating unit through the heat transfer medium of above-mentioned means temperature adjustment;
Be located at the valve on this tubular part;
The temperature information that directly or indirectly records according to the temperature to above-mentioned roller outer peripheral portion produces the temperature control means of valve drive signal;
According to the valve drive signal of this temperature control means output above-mentioned valve is carried out break-make control and make it the flow control means of carrying out on-off action between two kinds of set apertures of standard-sized sheet or full cut-off comprising.
2. roller temperature controlling system as claimed in claim 1 is characterized in that: above-mentioned heat transfer medium is regulated the both means of fixed temperature of being maintained at is cooling unit with the heat transfer medium cooling.
3. roller temperature controlling system as claimed in claim 1 is characterized in that: above-mentioned heat transfer medium is regulated both is maintained at that the means of fixed temperature are the heating apparatus that heat transfer medium is heated.
4. roller temperature controlling system as claimed in claim 1 is characterized in that: above-mentioned heat transfer medium is regulated the both means of fixed temperature of being maintained at is with the heat transfer medium cooling or the cooling heating apparatus of heating.
5. roller temperature controlling system as claimed in claim 1 is characterized in that: with above-mentioned tubular part and valve composition group and form the valve tubular part; A plurality of these valve tubular part groups have been used.
6. roller temperature controlling system as claimed in claim 5 is characterized in that: in a plurality of valve tubular part groups, have one group of valve tubular part medium of heating that only circulates at least.
7. roller temperature controlling system as claimed in claim 1, it is characterized in that: have independently cooling unit and heating apparatus, the tubular part of the heat transfer medium circulation separately that can supply with for above-mentioned device and valve composition group and form the valve tubular part, and, with between cooling unit and the roller and between heating apparatus and the roller, connect with valve tubular part group with the valve tubular part group and the medium of heating with cooling medium.
8. roller temperature controlling system, have and be formed at the heat absorption heating unit of transmission roller body inside, carry out heat by heat transfer medium, thereby make this heat absorption heating unit of above-mentioned heat transfer medium inflow and outflow with the temperature regulation of roller outer peripheral portion to desired value, it is characterized in that:
Be formed in the heat tube structure that is filled with work medium for heat pipe in the space that forms between above-mentioned heat absorption heating unit and the above-mentioned roller outer peripheral portion; And have:
Be provided with main line main valve, that heat transfer medium is sent to above-mentioned heat absorption heating unit;
Make at least one bypass conduit of this main line bypass;
Be arranged on the by-pass valve in this bypass conduit;
The temperature information that directly or indirectly detects according to the temperature to above-mentioned roller outer peripheral portion produces the temperature control means of valve drive signal;
Valve drive signal according to this temperature control means output makes above-mentioned valve carry out the flow control means of on-off action.
9. as claim 1 or 8 described roller temperature controlling systems, it is characterized in that: what the heat transfer medium that flows in the above-mentioned heat absorption heating unit used is machine oil or lubricant oil, or with the equal oil plant of above-mentioned oil.
10. as claim 1 or 5 described roller temperature controlling systems, it is characterized in that: above-mentioned temperature control means produces valve drive signal according to the temperature information and the room temperature information of the roller outer peripheral portion temperature that records directly or indirectly.
11. as claim 1 or 8 described roller temperature controlling systems, it is characterized in that: above-mentioned temperature control means produces valve drive signal according to the temperature information and the heat transfer medium temperature information of the roller outer peripheral portion temperature that records directly or indirectly.
12. as claim 1 or 8 described roller temperature controlling systems, it is characterized in that: above-mentioned temperature control means produces valve drive signal according to temperature information, room temperature information and the heat transfer medium temperature information of the roller outer peripheral portion temperature that records directly or indirectly.
13. as claim 1 or 8 described roller temperature controlling systems, it is characterized in that: above-mentioned heat transfer medium flows into from an end of roller body, flows out from the other end.
14. as claim 1 or 8 described roller temperature controlling systems, it is characterized in that: above-mentioned heat transfer medium flows out inflow from an end of roller body.
15. as claim 1 or 8 described roller temperature controlling systems, it is characterized in that: roller is to print with warm-up mill or cooling roll.
16. as claim 1 or 8 described roller temperature controlling systems, it is characterized in that: complementary heater means with the roller surface of directly heating.
17. the roller that uses in the roller temperature controlling system, have be formed at roller body inside, carry out the heat absorption heating unit that heat is transmitted by heat transfer medium, above-mentioned heat transfer medium flows out to the heat absorption heating unit; It is characterized in that:
With the open end of cylinder roller body with the flange plate sealing, with its inner formed cylinder space as heat tube structure,
Be provided with ripple in above-mentioned roller body inside and produce means, these ripple generation means are used for producing that ripple makes the rotation of following above-mentioned roller body and the film disorder that is formed at envelope medium in the liquid phase on the roller inner peripheral surface.
18. roller as claimed in claim 17 is characterized in that: the ink roller of using for the ink supply of printing press.
19. roller as claimed in claim 17 is characterized in that: above-mentioned ripple generation means are located near the boundary part or boundary part of roller inner peripheral surface and flange plate internal face.
20. roller as claimed in claim 17 is characterized in that: near the above-mentioned roller inner peripheral surface above-mentioned ripple generation means are located at the boundary part of roller inner peripheral surface and flange plate internal face and boundary part.
21. roller as claimed in claim 17 is characterized in that: above-mentioned ripple produces means and is made of protuberance.
22. roller as claimed in claim 17 is characterized in that: above-mentioned ripple produces means and is made of recess.
23. roller as claimed in claim 17, it is characterized in that: above-mentioned ripple produces means and is made of the ripple generation means combination of some kinds of following kinds, these ripple generation means comprise: be located at the boundary part of roller inner peripheral surface and flange plate internal face or near the ripple generation means the boundary part, ripple near being located at the boundary part of roller inner peripheral surface and flange plate internal face and boundary part the above-mentioned roller inner peripheral surface produces means, and the ripple that is located on the flange plate that the open end with roller body is closed produces means.
24. roller as claimed in claim 17 is characterized in that: above-mentioned ripple generation means are located on the flange plate with the sealing of the open end of roller body.
25. roller as claimed in claim 24 is characterized in that: above-mentioned ripple produces means and is made of the flange plate inwall or the flange surface that form and be not orthogonal to roll shaft with the plane.
26. roller as claimed in claim 24 is characterized in that: above-mentioned ripple produces means and is made of the flange surface that forms with non-planar surface.
27. roller as claimed in claim 24 is characterized in that: above-mentioned ripple produces means and is made of the flange surface with wave inception portion, and this wave inception portion extends to roll axial direction from the roller inner peripheral surface.
28. roller as claimed in claim 27 is characterized in that: above-mentioned wave inception portion is formed by rib or groove.
29. roller as claimed in claim 28 is characterized in that: the height of counting from the flange plate internal face of above-mentioned rib forms like this, promptly has the lower and upper surface that uprise to axle inner peripheral surface one side of roller rest axle one side.
30. roller as claimed in claim 28, it is characterized in that: following two kinds of ribs are combined and be provided with, the rib of the lower and upper surface that uprise to roller inner peripheral surface one side of height roller rest axle one side of counting from the flange plate internal face that promptly has an above-mentioned rib and to have roller rest axle one side higher and to the rib of the upper surface of roller inner peripheral surface one side step-down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96196643 CN1194610A (en) | 1996-05-02 | 1996-10-29 | Roller temperature controlling system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP135893/96 | 1996-05-02 | ||
| CN 96196643 CN1194610A (en) | 1996-05-02 | 1996-10-29 | Roller temperature controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1194610A true CN1194610A (en) | 1998-09-30 |
Family
ID=5129138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96196643 Pending CN1194610A (en) | 1996-05-02 | 1996-10-29 | Roller temperature controlling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1194610A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534794C (en) * | 2004-11-11 | 2009-09-02 | 海德堡印刷机械股份公司 | Printing machine |
| CN102416759A (en) * | 2011-08-31 | 2012-04-18 | 中国印钞造币总公司 | Fountain solution centralized allocation and supply circular cooling device |
| CN102673121A (en) * | 2012-04-23 | 2012-09-19 | 中国航天空气动力技术研究院 | Rotary heating pipe cooling type ink-pumping roll |
| CN103568499A (en) * | 2013-10-21 | 2014-02-12 | 安徽华印机电股份有限公司 | Heating roller of printing press |
| CN110539548A (en) * | 2019-09-01 | 2019-12-06 | 北京点域科技有限公司 | Printing roller cooling device for printing machinery |
| CN111016246A (en) * | 2018-10-09 | 2020-04-17 | 聚合兴企业有限公司 | High-precision temperature control system for rolling roller |
| CN111074060A (en) * | 2019-12-13 | 2020-04-28 | 马鞍山钢铁股份有限公司 | Protective structure for preventing condensation of water-cooling roller and using method thereof |
| CN112654501A (en) * | 2018-09-14 | 2021-04-13 | 惠普发展公司，有限责任合伙企业 | Adjusting roller |
| CN115494891A (en) * | 2022-08-17 | 2022-12-20 | 中国第一汽车股份有限公司 | Constant temperature control device and method by using switch electromagnetic valve |
-
1996
- 1996-10-29 CN CN 96196643 patent/CN1194610A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534794C (en) * | 2004-11-11 | 2009-09-02 | 海德堡印刷机械股份公司 | Printing machine |
| CN102416759A (en) * | 2011-08-31 | 2012-04-18 | 中国印钞造币总公司 | Fountain solution centralized allocation and supply circular cooling device |
| CN102416759B (en) * | 2011-08-31 | 2014-08-20 | 中国印钞造币总公司 | Fountain solution centralized allocation and supply circular cooling device |
| CN102673121A (en) * | 2012-04-23 | 2012-09-19 | 中国航天空气动力技术研究院 | Rotary heating pipe cooling type ink-pumping roll |
| CN103568499A (en) * | 2013-10-21 | 2014-02-12 | 安徽华印机电股份有限公司 | Heating roller of printing press |
| CN112654501A (en) * | 2018-09-14 | 2021-04-13 | 惠普发展公司，有限责任合伙企业 | Adjusting roller |
| CN111016246A (en) * | 2018-10-09 | 2020-04-17 | 聚合兴企业有限公司 | High-precision temperature control system for rolling roller |
| CN110539548A (en) * | 2019-09-01 | 2019-12-06 | 北京点域科技有限公司 | Printing roller cooling device for printing machinery |
| CN111074060A (en) * | 2019-12-13 | 2020-04-28 | 马鞍山钢铁股份有限公司 | Protective structure for preventing condensation of water-cooling roller and using method thereof |
| CN115494891A (en) * | 2022-08-17 | 2022-12-20 | 中国第一汽车股份有限公司 | Constant temperature control device and method by using switch electromagnetic valve |
| CN115494891B (en) * | 2022-08-17 | 2024-02-06 | 中国第一汽车股份有限公司 | Constant temperature control device and method by using switch electromagnetic valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1258656C (en) | Eccentric valve | |
| US3055473A (en) | Fluid coupling device | |
| US4368692A (en) | Wind turbine | |
| RU2331779C2 (en) | Power plant and method to optimise power supply for power plant cooling | |
| CN101389837B (en) | Fan drive device | |
| CN1194610A (en) | Roller temperature controlling system | |
| GB2280733A (en) | Hydrodynamic torque converter | |
| US3942486A (en) | Hydraulic fan drive system speed control | |
| EP0005927B1 (en) | Fluid shear coupling | |
| CN1625651A (en) | Seal for use between two mobile parts of a hydraulic machine | |
| CN1154816C (en) | Heat pump | |
| EP0844084A1 (en) | Roller temperature control system | |
| US2680348A (en) | Rotary pump and motor hydraulic transmission | |
| CN108468729B (en) | Hydraulic retarder and auxiliary speed reduction system for small and medium-sized vehicles | |
| JPS58196319A (en) | Pneumatic bearing device | |
| US3180571A (en) | Hydraulic clutch | |
| US6029613A (en) | Viscous liquid heater | |
| SE516986C2 (en) | Heat generators for vehicles | |
| CA2211069C (en) | Viscous fluid type heat generator with heat generation regulating performance | |
| US3389745A (en) | Hydrostatic bearing and axial adjusting means for the simultaneous rotary and axial movement of the rotor in a rotary regenerative air preheater | |
| CN106438493B (en) | Adaptive collector and centrifugal blower | |
| US5782604A (en) | Pump | |
| CN219390249U (en) | Cooling liquid cooling device capable of fully exchanging heat | |
| JP4059055B2 (en) | Cooling liquid injection method and flow control valve used for the injection method | |
| US20050039555A1 (en) | Precession modulated continuously variable transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |