According to the rotary screen textile printing technology, when design, color etc. change to some extent, all to clean and revolve net (rotary screen).
When using traditional common rotary screen textile printing machine, clean by pulling down on the machine revolving net, require a great deal of time and work.After the cleaning, the dry net that revolves is reinstalled onto on the machine again, and this also needs many work and time, and the result can make productivity ratio reduce, and also can produce serious problems when carrying out fine pattern and multiple color stamp.
As mentioned above, must will revolve net before cleaning and pull down, carry out this operation and printing paste is remained in revolve on the net.Because printing paste usually from revolving online drippage, causes environmental pollution.
Day disclosure laid-open patent (Japanese Unexamined Patent PublicationNo, 276564/1996) discloses a kind of rotary screen textile printing machine and has attempted to address the above problem.The parts of this machine promptly revolve net, transport the endless belt of PRINTED FABRIC and printing table along tilting on the width of endless belt.
The low side that the cleaning fluid that net is revolved in supply revolves net by inclination is discharged, and the liquid of discharge is collected in the trough.The net that revolves that is cleaned needs hurriedly to pull down from printing machine.
Run through the whole network along longitudinally and disposed a hollow garden pipe, be furnished with some apertures by longitudinally on the wall of hollow pipe, cleaning fluid is flowed out to supply to by these apertures and revolves on the net.Yet this method can not reach the cleaning performance of expection fully, and reason is as follows:
A) when revolving wire side, obtain less cleaning fluid probably to the non-bore region of hollow pipe.The result makes revolves net and can not get sufficient cleaning.
B) cleaning fluid hydraulic pressure there are differences between the leading section of hollow pipe and rearward end.It is each position cleaning performance difference.Thereby, as being in the cleaning that the mesh that hangs down the hydraulic pressure position obtains appropriateness, then higher hydraulic pressure position is with overclean.Otherwise if the latter is suitably cleaned, then the former just cleans deficiency.
C) be difficult to clean be attached to revolve the net opposite tapered end ring.
D) the described hole of hollow pipe is stopped up by class things such as incrustation scales probably, and cleaning fluid can't be supplied with.
E) still need to remove and revolve the wash residue that attaches on the net, after this, also will make its drying, efficient is low.
F), be difficult to finish within a short period of time that the cleaning of revolving net is reached the processing relevant with cleaning owing to above reason.
Referring now to the description of drawings most preferred embodiment.
Rotary screen textile printing machine among the present invention includes single or by the parallel a plurality of nets 1 that revolve arranged side by side of preset distance, transports the endless belt 2 of stamp fabric, printing table 3 and be installed in the driving wheel (not drawing among the figure) that drives endless belt 2 on textile printing machine frame 4 and 5. Parts 1,2 and 3 tilt on the width of endless belt 2.
Configuration cleaning fluid injector 30 in revolving net 1.This cleaning fluid injector 30 moves back and forth once in the whole length range substantially at least along the longitudinally that revolves net 1 and at it.The nozzle 36 of cleaning fluid injector 30 is towards the inwall direction of revolving net 1.In legend, cleaning fluid injector 30 comprises a manifold 31 that is installed on the balladeur train 32.Manifold 31 has arm 35, and arm 35 is extended downwards with respect to the inner surface that revolves net 1 by the left end and the right-hand member of manifold 31 in Fig. 2.The port of arm 35 is equipped with nozzle 36 respectively.The most preferred embodiment of nozzle 36 is a variable injecting direction type.If the injection direction of nozzle can change, just can be according to according to different situations jet cleaning liquid and compressed-air blows on the anticipated orientation of revolving net 1 inner surface relatively, to remove residual liquid (being detailed later).Nozzle 36 is preferably wide journey and sprays/blow type, can spray washing lotion and compressed-air blows in revolving the broad range of net.Balladeur train 32 is installed in one to have on the slide bar 10 that runs through to revolve net 1 in the square-section, and balladeur train 32 can carry out front and back as guide rail with slide bar 10 and slide, but can not rotate along the axle that revolves net 1.Balladeur train 32 comprises the pulley 33 that can move and can slide along slide bar 10 on slide bar 10 sliding shoes 34.Because balladeur train 32, just the cleaning fluid injector can not rotate with respect to the axle that revolves net 1, and the belt pipe 38 that revolves 1 li on net just can not twist, thereby cleaning fluid injector 30 can move back and forth in revolving net 1 stably.
Belt pipe winch 40 is arranged in the next door of frame 5.The reel 42 that belt pipe winch includes a bearing 41 and supports, and a two-way drive motor 43 is in order to rotate reel 42.Motor 43 is variable speed model preferably, can change the movement velocity of the cleaning fluid injector 30 that will narrate the back where necessary.Around an end of belt pipe 38, the other end is supplied with inlet 31a by joint 37 and liquid and is communicated on the reel 42.The winding termination of belt pipe 38 and the winding end interface of shaft coupling 44 join.44 pairs of reels 42 of shaft coupling play a part transmission main shaft.What link to each other with shaft coupling 44 other ends is pipeline 45.Belt pipe 38 is extended out by reel 42, and its middle part changes its direction of extension by the pulley 46 that is configured in the appropriate location, and pulley 46 supports by the end of a fulcrum 47 by support arm 48, and its other end and slide bar 10 link.
What link to each other with pipeline 45 is an end of pipeline 50.The junction of the other end of pipeline 50 and feed tube for liquid Ia and compressed air supply pipe IIa links.Initiating terminal and the cleaning liquid source of feed tube for liquid Ia link, and for example link with a pump of supplying with cleaning fluid through magnetic valve 51.The initiating terminal of compressed air supply pipe IIa links to each other with compressed air supply source II, for example links to each other with supplying with compressed-air actuated air compressor through magnetic valve 52.Pipeline Ia and IIa are equipped with valve 53 last time respectively.
Belt pipe 38 tightens up on reel 42 by being rotated in the forward of reel 42, loosens by the reverse rotation of reel 42.When the belt pipe loosened, cleaning fluid injector 30 moved to right-hand along Fig. 1 medium dip slide bar 10 owing to gravity.The left direction of injector 30 in Fig. 1 moved.
According to predetermined program, cleaning fluid injector 30 moves reciprocatingly in revolving net 1, is promptly revolving a higher end of net 1, and the X that for example mentions later point is reciprocating initial point or initial point, and a lower end, the Y that for example mentions later point is reciprocating swivel point.
In revolving the net cleaning, magnetic valve 52 is in closed condition, and magnetic valve 51 is open-minded.Control opening and closing of these magnetic valves by suitable mode, for example by motor 43 and following means.
Magnetic valve 51 and 52 and the output of motor 43 and control circuit A link.When control circuit A switch connection, output signal is arranged by control circuit A input magnetic valve 51 and 52 and motor 43, thereby opens solenoid valve 51 is closed magnetic valve 52, starter 43.
When magnetic valve 51 was opened, pipeline Ia was open-minded, and the supercharging cleaning fluid is supplied with belt pipe 38 by pipeline Ia, 50 and 45 by cleaning liquid source I.Cleaning fluid is ejected to clean by nozzle 36 and revolves the net inwall.The liquid bath 25 that is installed in conveyer belt 2 low sides is used to collect the cleaning fluid waste liquid.
On the other hand, cleaning fluid injector 30 moves back and forth once in the whole length range of net 1 is revolved in inclination substantially at least.
The reciprocating motion of cleaning fluid injector 30 is not limited to specific scope.But cleaning fluid injector 30 generally moves between the end ring that revolves net 1 two ends, promptly moves to revolving the net 1 opposite side end ring 1R from the left end (flange end) that revolves net 1 one sides (left side Fig. 1) end ring 1R.Utilization is described more accurately by the vertical line of balladeur train 32, i.e. its motion between X point and Y point as shown in Figure 1.
Decide the range of movement that cleaning fluid injector 30 is ordered to Y by the X point for putting, can adopt suitable method, for example can adopt following method.
A counter is contained among the control circuit A.Motor 43 links to each other with the output of counter.In cleaning process, counter is write down the number of revolutions of motor 43, and in other words, promptly counter is write down the umber of pulse of being sent by impulse generator PG according to the amount of exercise of cleaning fluid injector 30.
By the beginning of X point, when cleaning fluid injector 30 reached the Y point, the counting of counter reached predetermined umber of pulse.Then, provide one by control circuit A and export motor 43 to, carry out reverse rotation.Carry out this control according to the program that is stored in advance among the control circuit A.After 30 reciprocating motions of cleaning fluid injector reached pre-determined number, control circuit A sent and outputs signal to magnetic valve 51 and motor 43, thereby closes magnetic valve 51 and motor 43 is stopped operating.When motor 43 stopped, cleaning fluid injector 30 was in X point position according to preset program.This control also is to carry out according to the program that is stored in advance among the control circuit A.Fig. 5 realizes the system block diagram of above-mentioned control for expression.
Revolve in the process of net 1 in cleaning, revolve that net 1 and endless belt 2 preferably rotate.Like this, revolve scraping slurry roller 11 and can rotate in the net 1, thereby help to clean and revolve the net mesh, and make and scrape slurry roller itself and obtain cleaning with the rotation of revolving net 1.In this case, if printing table 3 is an electromagnetic type, then, can obtain desirable effect by excitation to electromagnet 3a.When electromagnet 3a is subjected to encouraging, scrape the slurry roller because the pulling force of electromagnet 3a rides on the inner surface that revolves net more tightly, can squeeze out and dispose the color slurry and revolve wash residue on the net 1.
When the cleaning of revolving net 1 was finished, the residual liquid that revolves on the net 1 should be eliminated.Control by suitable method to the conversion the raffinate removing pattern by cleaning model.For example adopt following method.
When cleaning process is finished, send an output signal by control circuit A to magnetic valve 52, make magnetic valve 52 open-minded, pipeline IIa is open-minded.This control is to carry out according to the program that is stored in advance among the control circuit A.When pipeline IIa opened, through pipeline IIa, 50 and 45 supplied to belt pipe 38 to compressed air, and are blowed away by nozzle 36 by compressed air source.Wet steam and drop that this compressed air stream will revolve on net 1 interior space and the inner surface are disposed.Therefore, do not need as routine techniques, to wipe raffinate.In addition, compressed air stream band can clean nozzle 36, thereby prevents that incrustation scale from stopping up.
Another counter is housed among the control circuit A, be used for the number of revolutions of recording pen motor 43, promptly write down the umber of pulse that sends out by the transportation load of cleaning fluid injector 30 (it comes down to a compressed air hair-dryer in the raffinate scale removal process) by impulse generator PG in above-mentioned raffinate scale removal process.By the beginning of X point, when cleaning fluid injector 30 arrived the Y point, the counting of counter reached predetermined value.At this moment, an output signal enters motor 43 by control circuit A, thereby makes motor 43 backward rotation.This control is to implement by the program that is stored in advance among the control circuit A.After 30 reciprocating motions of cleaning fluid injector reach pre-determined number, export a signal to magnetic valve 52 and motor 43 by control circuit A, thereby close magnetic valve 52 and motor 43 is stopped.When motor 43 stalls, cleaning fluid injector 30 is in the position of an X by preset program.These controls also are to be realized by the program that is stored in advance among the control circuit A.
Fig. 5 also is to determine that cleaning fluid injector 30 is by the control system block diagram of X point to Y point stroke range for cleaning model is converted to the control system block diagram that raffinate is removed pattern.
Among Fig. 5, C1 represents to be provided with cleaning process cleaning fluid injector 30 putting of number of times of reciprocating motion and decides device, and C2 represents to be provided with raffinate reset procedure compressed air hair-dryer (the cleaning fluid injector serves a dual purpose) putting of number of times of reciprocating motion and decides device.
Turn back to the X point and stop a period of time at this because clean injector 30, injector 30 can not hinder printing and dyeing.Be convenient to revolve the replacing of net 1 simultaneously, thereby also.
Even more ideal is, the reciprocating motion number of times of default cleaning fluid injector 30 can suitably be adjusted according to different printing and dyeing conditions, such as viscosity and type according to used mill base, and the gloss of color, and revolve net mesh situation or the like.
As mentioned above, by the present invention, the cleaning fluid injector moves back and forth once in tilting revolves the whole length range of net at least, and net is revolved in the cleaning fluid cleaning of chewing ejection with injector.Thereby, revolve that net is available in its whole length range effectively to be cleaned towards the cleaning fluid of the injector nozzle that revolves the net inwall by homogeneous dynamics ejection.In addition, revolve each position of net, comprise end ring, all can obtain cleaning.If the cleaning fluid injector can be done to stop slightly at X point and Y point, then end ring can obtain better cleaning.For the cleaning fluid injector is stopped at X point and Y point, can in control circuit A, store the control of performing a programme implementation procedure.
In removing the raffinate process, the cleaning fluid injector plays the compressed air hair-dryer, and promptly it moves back and forth at least in the whole length range of net and once comes compressed-air blows, and therefore, the raffinate that revolves on online even the end ring can be removed efficiently.In addition, compressed-air blows helps to prevent that nozzle is subjected to the obstruction of things such as incrustation scale.If the cleaning fluid injector is done to stop in short-term at X point and Y point, revolving online raffinate can obtain more effective cleaning from end ring.
By the present invention, link by the mode of selecting switching with cleaning liquid source and compressed air source if supply with the pipeline both port of origination that inlet links to each other, but cleaning fluid spraying system compressed-air blows then plays the double action of raffinate scavenge system with cleaning fluid injector liquid.Thereby further strengthened practicality of the present invention.
The supporting construction of revolving net 1 is illustrated as follows:
Bearing 6,6 supports the relative termination of revolving net 1, and it places (figure does not mark) on the bearing block that is installed on frame 4 and 5 with appropriate format, so that the right side bearing among Fig. 1 can move on the textile printing machine width (i.e. left and right directions in Fig. 1).Revolve the end ring 1R in the net 1,1R and bearing 7,7 are carried out removable interference fit, and bearing 7,7 can rotate around the axle of bearing 6,6.Joggle piece 71 is installed in the port of bearing 7,7 respectively.Equally, joggle piece 12 is installed in end ring 1R respectively, on the port of 1R.As shown in Figure 6 and Figure 7, joggle piece 71 and 12 is a complex form.When the joggle piece 71 and 12 that revolves net one side was meshing with each other, the joggle piece 71 and 12 of opposite one side also intermeshed.When revolving that net 1 rotates with respect to bearing 7,7 and when making joggle piece 12 and 71 break away from engagement, the right-hand motion of the right side bearing among Fig. 1 in Fig. 1, thereby revolve net 1 also with respect to the bearing 7 on opposite and the right-hand motion in Fig. 1, thereby make and end ring 1R, the net 1 that revolves that 1R connects breaks away from bearing 7,7.
What be connected with bearing 6 slidably is a sleeve shaped support member 60, the free end 61 of slide bar 10, i.e. and the right-hand member of slide bar 10 is with support member 60 interference fits.Free end 61 is detachable interference fit, and is supported by support member 60.One support 8 is arranged on the frame 5.Cross a fulcrum 9 at the click-through that revolves net 1 outside and be supported on heavy Nogata to rotating slide bar 10.
When slidably bearing 6 was to right-hand motion and disengaging end ring 1R, support component 60 broke away from slide bars 10.End ring 1R and right side bearing 7 break away from.Is fulcrum and when upwards rotating, the front end of slide bar 10 contacts with the end ring 1R of front end one side when air cylinder 14 makes slide bar 10 with fulcrum 9.When slide bar 10 further upwards rotated, the net 1 that revolves that breaks away from bearing 6,6 upwards rotated with slide bar 10.When revolving net 1 and upwards turn to predeterminated level, air cylinder 14 quits work, make revolve net 1 can be with respect to the right-hand disengaging of slide bar 10 in Fig. 1.In this case, upwards rotate with slide bar 10 and rise to said level, utilize slide bar 10, revolve net 1 and be easy to slip away as guide rail or carriage because revolve net 1.Air cylinder 14 lower ends connect with support 22 mutually by the fulcrum 13 on the frame 5.The top 14a of piston is connected with slide bar 10 by fulcrum 16.
Can be clear that by above explanation the present invention can improve the cleansing power that revolves screen printing machine, reduce scavenging period, reduce and clean work, thereby improve the productivity ratio of printing machine.