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(11) | EP 1 616 988 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Dyeing machine |
| (57) A dyeing machine including a main dye jar (1) and at least one conveying belt (3)
disposed in the main dye jar. The conveying belt (3) is arranged in a moving direction
of the cloth. The conveying belt (3) serves to carry the cloth outgoing from a nozzle
(2). By means of the conveying belt (3), the cloth can be circulated and dyed in the
main dye jar (1) without accumulation and crimp. Therefore, the dyeing quality of
the cloth is enhanced.
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BACKGROUND OF THE INVENTION
[0002] There are many types of dyeing machines which utilize airflow to entrain dye for circulating and dyeing the cloth. For example, Taiwanese Patent Publication No. 576444 discloses an atomizing nozzle structure of a dyeing machine. The dyeing machine includes an upper dye outlet, an upper wind outlet, a lower dye outlet, a lower wind outlet and two cylindrical bars. Strong wind of a blower is guided in from the upper and lower wind outlets so as to quickly and uniformly atomize the dye flowing out from the upper and lower dye outlets. In addition, the cloth is driven and circulated within the dyeing machine and dyed.
[0003] In actual appl icat ion, the airflow of the upper and lower wind outlets ( nozzles ) has limited power. Therefore, after the cloth passes through the outlet of the nozzle, the cloth is folded and accumulated in the dye jar. By way of push and extrusion, the cloth is slowly moved toward the inlet of the nozzle. Accordingly, the cloth is circulated. However, when accumulated and extruded in the dye jar, the cloth will crimp. This will ruin the planarity of the cloth and affect the dyeing quality of the cloth.
SUMMARY OF THE INVENTION
[0004] It is therefore a primary object of the present invention to provide a dyeing machine in which the cloth is conveyed and circulated in the main dye jar in a naturally stretched state. Therefore, in an awaiting stage, the cloth will not accumulate and throng in the main dye jar so that the crimp can be avoided and the dyeing quality can be enhanced.
[0005] According to the above object, the dyeing machine of the present invention includes: a main dye jar having an internal space for dyeing operation, a cloth guide roller being disposed on at least one side of the main dye jar for guiding a cloth to be dyed to pass through a preset position; at least one nozzle disposed on an outgoing side of the cloth guide roller in the main dye jar, via a windpipe, the nozzle communicating with a blower, via a dye pipe, the nozzle further communicating with a dye cylinder; and at least one conveying belt disposed in the main dye jar, an outgoing end of the conveying belt extending to the incoming side of the cloth guide roller, an incoming end of the conveying belt serving to carry the cloth outgoing from the nozzle after sprayed and dyed. In the dyeing operation, the cloth can be uniformly conveyed in the main dye jar without accumulation and crimp.
[0006] In the above dyeing machine, a sensor is disposed between the conveying belt and the cloth guide roller to detect the conveying and accumulating state of the cloth. The sensor helps in controlling the speed at which the blower fills the air into the nozzle. Also, the sensor helps in controlling the rotational speed of the conveying belt and the cloth guide roller so as to control the conveying speed of the cloth in each stage.
[0007] In the above dyeing machine, a nozzle is disposed between the outgoing end and incoming end of each conveying belt. The dye is atomized by the nozzle and entrained by the high-speed airflow to enhance the spray dyeing efficiency. Therefore, the dyeing operation is speeded and smoothened.
[0008] The present invention can be best understood through the following description and accompanying drawings wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
[0009]
Fig. 1 is a view of a first embodiment of the dyeing machine of the present invention;
Fig. 2 is a view of a second embodiment of the dyeing machine of the present invention;
Fig. 2A is a view of a third embodiment of the dyeing machine of the present invention; and
Fig. 3 is a view of a fourth embodiment of the dyeing machine of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] Please refer to Fig. 1. According to a first embodiment, the dyeing machine of the present invention includes a main dye jar 1, a nozzle 2 and a conveying belt 3. An external cloth guide tube 12 is interconnected between two ends of the main dye jar 1. A dye jar cap 11 is disposed on one side of the main dye jar 1. The dye jar cap 11 can be opened for taking out or placing in the cloth 4. A cloth guide roller 13 is disposed in the side of the main dye jar 1. The nozzle 2 is disposed between the cloth guide roller 13 and a proximal end of the cloth guide tube 12. Via a windpipe 21 and a dye pipe 23, the nozzle 2 respectively communicates with a blower 22 and a dye cylinder 24 arranged on outer side of the main dye jar 1. The conveying belt 3 is disposed in the main dye jar 1. A proximal end of the conveying belt 3 extends to a position near an incoming side of the cloth guide roller 13. A sensor 31 is disposed at the proximal end of the conveying belt 3. A distal end of the conveying belt 3 extends to a distal end of the cloth guide tube 12, which end enters the main dye jar 1. One end of the cloth 4 is guided by the cloth guide roller 13 to pass through the nozzle 2. The nozzle 2 sprays the dye onto the cloth and then the cloth 4 is guided by the cloth guide tube 12 toward the other side of the main dye jar 1. Then the conveying bel t 3 conveys the cloth 4 in reverse di rect ion back to the intake side of the cloth guide roller 13. Accordingly, the cloth is circulated for the nozzle to spray and dye the cloth.
[0011] In dyeing operation, the blower 22 sends high-speed air through the windpipe 21 into the nozzle 2. According to siphon principle, the dye is sucked from the dye cylinder 24 through the dye pipe 23 into the nozzle 2 and atomized. The atomized dye along with the high-speed air pushes the cloth 4 into the cloth guide tube 12 from one end thereof. The cloth 4 is then pushed by the high-speed dye airflow in the cloth guide tube 12 to the other end and dropped onto the distal end of the conveying belt 3. The conveying belt 3 is moved toward the cloth guide roller 12, whereby the cloth 4 is uniformly distributed over the conveying belt 3 and moved to the cloth guide roller 12 without accumulation and crimp. Accordingly, the cloth 4 is prevented from crimping when sent back. The sensor 31 serves to detect the flowing speed of the cloth 4 and help in controlling the speed at which the blower 22 fills the air into the nozzle 2. Also, the sensor 31 helps in controlling the conveying speed of the conveying belt 3 so as to adjust the entire flowing speed of the cloth 4. Accordingly, the cloth 4 will not accumulate and throng on the conveying belt 3.
[0012] Fig. 2 shows a second embodiment of the dyeing machine of the present invention, which includes a main dye jar 1, a nozzle 2 and a conveying belt 3. A dye jar cap 11 is disposed on one side of the main dye jar 1. The dye jar cap 11 can be opened for taking out or placing in the cloth 4. A cloth guide roller 13 is disposed beside the dye jar cap 11. The nozzle 2 is disposed on an outgoing side of the cloth guide roller 13 inside the main dye jar 1. Via a windpipe 21 and a dye pipe 23, the nozzle 2 respectively communicates with a blower 22 and a dye cylinder 24 arranged on outer side of the main dye jar 1. The conveying belt 3 is composed of a forward conveying belt 3A and a backward conveying belt 3B parallelly arranged in the main dye jar 1. A proximal end of the forward conveying belt 3A extends to an outlet end of the nozzle 2. A proximal end of the backward conveying belt 3B extends to the incoming side of the cloth guide roller 13. A sensor 31 is arranged near the proximal end of the backward conveying belt 3B. The cloth 4 is guided by the cloth guide roller 13 into the nozzle 2 for spraying the dye onto the cloth 4. Thereafter, the cloth 4 is fed to the forward conveying belt 3A and sent to the distal end of the main dye jar 1. Then the cloth 4 is conveyed by the backward conveying belt 3B in reverse direction to the incoming side of the cloth guide roller 13. Therefore, the cloth 4 is circulated and dyed without accumulation and crimp. The sensor 31 serves to detect the conveying speed of the cloth 4 and help in controlling the speed at which the blower 22 fills the air into the nozzle 2. Also, the sensor 31 helps in controlling the conveying speed of the upper and lower conveying belts 3A, 3B so as to adjust the circulating speed of the cloth 4. Accordingly, the cloth 4 will not accumulate and throng on the conveying belt 3.
[0013] Fig. 2A shows a third embodiment of the dyeing machine of the present invention. In the above embodiments, the conveying belt 3 is driven by a driving motor 32 disposed on outer side of the main dye jar 1. In the thi rd embodiment, wi thout affecting the operat ion of the conveying belt 3, the interior of the main dye jar 1 is divided into at least two spaces wi th a partitioning board 52. In cooperation with the arrangement of the cloth guide roller 13 and the nozzle 2, at least two cloths can be simultaneously independently circulated and dyed.
[0014] Fig. 3 shows a fourth embodiment of the dyeing machine of the present invention, which is based on the structure of the third embodiment. An upper conveying belt 3A and a lower conveying belt 3B are parallelly arranged in the main dye jar 1. Two cloth guide rollers 13 and two nozzles 2 are respectively disposed between the ends of the conveying belts 3A, 3B. The cloth 4 passing through one cloth guide roller 13 is sprayed and dyed by an upper nozzle 2. Then the cloth 4 is conveyed from one end of the forward conveying belt 3A to the other end of the main dye jar 1. Then the cloth 4 is guided by the other cloth guide roller 13 into the other nozzle 2 to be sprayed and dyed by the nozzle 2. Then the cloth 4 falls onto the backward conveying belt 3B and is sent back to the incoming side of the original cloth guide roller 13. Accordingly, the cloth 4 is circulated. Two sensors 31 are respectively arranged at the outgoing ends of the conveying belts 3A, 3B for detecting the conveying speed.
[0015] In dyeing operation, the blower 22 sends high-speed air through the windpipe 21 into two nozzles 2. According to siphon principle, the dye is sucked from the dye cylinder 24 through the dye pipe 23 into the nozzles 2 and atomized. The atomized dye along with the high-speed air pushes the cloth 4, whereby the cloth 4 drops from the outlet ends of the nozzles 2 onto the conveying belts 3A, 3B. The conveying belts 3A, 3B uniformly circularly convey the cloth 4 to the other side without crimp. The cloth guide rollers 13 guide the cloth to the other nozzles 2. The atomized dye along with the high-speed air pushes the cloth 4 onto the conveying belt 3. The conveying belt 3 circularly conveys the cloth 4 and the cloth guide rollers 13 guide the cloth 4 back to the nozzles 2. Accordingly, the cloth 4 is circulated and dyed without accumulation and crimp. The sensors 31 serve to detect the conveying speed of the cloth 4 in each stage and help in controlling the speed at which the blower 22 fills the air into the nozzles 2. Also, the sensors 31 helps in controlling the rotational speed of the conveying belt 3 and the cloth guide rollers 13 so as to control the conveying speed of the cloth 4. Accordingly, the cloth 4 will not accumulate and throng on the conveying belt 3.
[0016] The conveying belt is arranged in the main dye jar for uni formly carrying the cloth. The conveying belt serves to convey and circulate the cloth inside the main dye jar in a naturally stretched state. Therefore, in an awaiting stage, the cloth will not accumulate and crimp in the main dye jar. Many main dye jars can be interconnected to uniformly carry and convey the cloth without accumulation and crimp. Therefore, the load on the cloth guide roller for guiding the cloth into the nozzle can be reduced and the dyeing operation can be speeded.
1. A dyeing machine comprising:
a main dye jar having an internal space for dyeing operation, a cloth guide roller being disposed on at least one side of the main dye jar for guiding a cloth to be dyed to pass through a preset position;
at least one nozzle disposed on an outgoing side of the cloth guide roller in the main dye jar, via a windpipe, the nozzle communicating with a blower, via a dye pipe, the nozzle further communicating with a dye cylinder; and
at least one conveying belt disposed in the main dye jar, an outgoing end of the conveying belt extending to the incoming side of the cloth guide roller, an incoming end of the conveying belt serving to carry the cloth outgoing from the nozzle after sprayed and dyed.
2. The dyeing machine as claimed in claim 1, wherein a cloth guide tube is disposed between
two ends of the main dye jar, one end of the cloth guide tube being connected with
an outlet of the nozzle, the other end of the cloth guide tube communicating with
the incoming end of the conveying belt.
3. The dyeing machine as claimed in claim 1, wherein a sensor is disposed in the main
dye jar between the conveying belt and the cloth guider roller.
4. The dyeing machine as claimed in claim 1, wherein many sets of conveying belts are
interconnected and arranged in the main dye jar, the incoming end of the conveying
belt being connected with the outlet of the nozzle or the cloth guide tube.
5. The dyeing machine as claimed in claim 4, wherein a cloth guide roller is disposed
between the outgoing end and incoming end of each conveying belt.
6. The dyeing machine as claimed in claim 4 or 5, wherein a nozzle is disposed between
the outgoing end and incoming end of each conveying belt.
7. The dyeing machine as claimed in claim 4 or 5, wherein a sensor is disposed in the
main dye jar at the outgoing end of each conveying belt.
8. The dyeing machine as claimed in claim 6, wherein a sensor is disposed in the main
dye jar at the outgoing end of each conveying belt.
9. The dyeing machine as claimed in any of claims 1 to 5, wherein the main dye jar is
an elongated cylindrical jar.
10. The dyeing machine as claimed in any of claims 1 to 5, wherein the main dye jar is
a cylindrical jar.