Impurity delivery system for carding machine, carding machine thereof, and method for modifying carding machine

Abstract

An impurity delivery system (100) and a carding machine thereof, and a method for modifying a carding machine. The method comprises reducing the number of carding elements (224) of the carding machine, and inserting an impurity delivery system (100). The impurity delivery system (100) comprises an opening (110), a guide channel (120), and a suction pipe (130); the opening (110) faces a licker-in roller (12) of the carding machine (200) and is configured to cause impurities (990) to enter the suction pipe (130) through the guide channel (120). The impurity delivery system has few components and has a compact structure, can be installed in a limited space of the carding machine, can be maintained in a simple mode without a complex tool, and is easily replaced.

Description

Impurity conveying system for carding machine, carding machine and method for modifying carding machine Technical Field

[0001] The present invention relates to a foreign matter conveying system for a carding machine, a carding machine having the foreign matter conveying system, and a method for modifying a carding machine. Background Art

[0002] In a spinning mill, fiber material from the blowroom is supplied to the carding machine via a pipe conveying system. The fiber material is cleaned and parallelized by the carding machine and then produced into slivers, which are then further processed to form yarn. To this end, in the carding machine, the fiber material is guided by a feeding device via a licker-in to the cylinder of the carding machine. The removal of impurities in the fiber material mainly occurs in the licker-in area, and only a small part of the impurities is removed by the carding machine cover or falls in other areas. The licker-in can loosen and remove impurities from the fiber material, and the effect of loosening and removing impurities can be improved by increasing the number of lickers, such as a three-licker-in carding machine. However, a standard carding machine has only one licker-in, and single-licker-in cards are mostly used when processing slender fibers.

[0003] In order to loosen and remove impurities from the fiber material to the greatest extent possible, the licker-in roller is sealed in a housing equipped with a carding plate and a dust removal blade, thus performing both loosening and impurity removal. Impurities and short fibers removed by the dust removal blade are absorbed into a waste collector by a suction pipe. For example, patent application WO2007019715A1 discloses a cleaning device for a carding machine, wherein the impurity separation opening and dust removal blade are adjustable. Due to the promotion of machine-picking cotton, the impurity content in the cotton raw material is relatively high, and the opening and impurity removal of the licker-in roller in existing carding machines faces challenges. In order to remove more impurities at the licker-in roller position, the number of dust removal blades and suction pipes installed on the licker-in roller can be increased. For example, in the multi-licker-in carding machine disclosed in U.S. patent application US5,862,573A, each licker-in roller is continuously provided with two dust removal blades and corresponding suction pipes to remove more impurities. However, due to the compact structure of the carding machine, the space around the licker-in roller is extremely limited. Furthermore, adding dust blades and suction ducts to the impurity transport system, while also considering the need for a suction duct to collect impurities, is not an easy task. This results in a complex structure and is difficult to maintain. Furthermore, the airflows generated by the consecutive dust blades and suction ducts easily interfere with each other, hindering the opening and removal of impurities from the fiber material.

[0004] Summary of the Invention

[0005] The object of the present invention is to overcome the defects of the prior art and provide an impurity conveying system for a carding machine, so as to remove more impurities from the fiber material. The system has fewer components and a compact structure, can be installed in the limited space of the carding machine, and can be maintained in a simple manner and easily replaced without complicated tools.

[0006] To achieve this object, a trash conveying system for a carding machine is proposed, comprising:

[0007] an opening facing the licker-in of the carding machine and configured to allow trash to enter the trash conveying system;

[0008] - a suction duct configured to receive said impurities and to transport said impurities via an air flow; and

[0009] A guide channel configured to guide the impurities from the opening to the suction duct.

[0010] Due to the impurity conveying system of the present invention, the problem of insufficient space in existing carding machines is overcome, and existing carding machines can be modified to remove more impurities from the fiber material. According to one embodiment of the present invention, the impurity conveying system is very compact and has fewer components. It can make full use of the space of the carding machine for installation and can be maintained and easily replaced without a large number of tools. Specifically, after the fiber material enters the carding machine, the licker-in roller loosens the fed fiber material into smaller fiber bundles, causing some impurities to fall, and then transfers the fiber bundles to the cylinder. The fallen impurities enter the guide channel through the opening of the impurity conveying system, are then received by the suction pipe and conveyed away via the airflow.

[0011] Preferably, the impurity conveying system of the present invention may further include a blowing device configured to blow impurities from the guide channel and / or from the opening to the suction duct. The blowing device may facilitate the conveying of the impurities and prevent impurities from accumulating in the opening and / or the guide channel and causing blockage.

[0012] The blowing device further comprises a protective element which is configured to protect the blowing device and can thus partially or completely protect the blowing device.

[0013] Preferably, the guide channel of the impurity conveying system includes a first wall, the first wall including a first adjacent surface of the dust blade facing the guide channel and / or a first plate. The guide channel also includes a second wall, the second wall including a second adjacent surface of the combing element facing the guide channel and / or a second plate. The first wall and / or the second wall can improve the airtightness of the guide channel.

[0014] Preferably, the opening of the foreign matter conveying system is partially or fully comprised between the first wall, the second wall, the blowing device and / or the protective element, and thus, the opening may partially or fully face the licker-in.

[0015] The protective element is configured to overlap with the first wall and / or the second wall. Furthermore, the impurity conveying system includes a gap between the protective element, the first wall, and / or the second wall. The blowing device is configured to blow airflow and / or impurities through the gap between the protective element, the first wall, and / or the second wall. Thus, the protective element can prevent impurities from falling into the gap, and the airflow from the blowing device can be deflected toward the first wall and / or the second wall, thereby blowing the impurities into the suction duct.

[0016] A further object of the present invention is to provide a carding machine comprising the impurity conveying system. Due to this configuration, the lack of space in existing carding machines can be overcome, and existing carding machines can be modified so as to remove more impurities from the fiber material by adding the impurity conveying system.

[0017] A further object of the present invention is to provide a method for modifying a carding machine, comprising reducing the carding elements so as to create a space between the dust blade and the carding elements, and inserting the aforementioned impurity conveying system into the created space between the dust blade and the carding elements. This method overcomes the lack of space in existing carding machines, allowing for the removal of more impurities from the fiber material by adding the aforementioned impurity conveying system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features, aspects and advantages of the present invention will become apparent from the following detailed description of the embodiments, which is given by way of illustration and not limitation with reference to the accompanying drawings, in which like reference numerals designate similar elements or elements having similar functions, and in which

[0019] FIG1 is a schematic side view of a carding machine having a trash conveying system according to the present invention;

[0020] FIG2 is a partial view of the carding machine in FIG1 having the impurity conveying system of the present invention;

[0021] FIG3 is an enlarged view of the impurity conveying system for the carding machine according to the present invention.

[0022] FIG4 is a schematic structural diagram of the blowing device of the present invention.

[0023] The numbers in the accompanying drawings are: 1. existing impurity separation device; 2. channel; 3. feed channel; 4. fiber bundle; 5. feeding device; 6. feed roller; 7. opening roller; 8. air flow; 9. ventilation area; 10. feeding device; 11. fiber filler; 12. licker-in roller; 13. cylinder; 14. cover unit; 15. doffer; 16. sliver forming unit; 17. sliver; 100. impurity conveying system; 101. gap; 110. opening; 120. guide channel; 121. first plate; 122. second plate; 130. suction duct; 140. blowing device; 141. protective element; 142. blowing pipe; 143. blowing port; 144. extension; 200. carding machine; 221. first adjacent surface; 222. second adjacent surface; 223. dust removal knife; 224. carding element; 990. impurities DETAILED DESCRIPTION

[0024] Figure 1 schematically shows a carding machine 200, which can be, for example, a rotary flat carding machine, which is equipped with a filling channel 2, a feeding device 5 and a feed channel 3. After the fiber material has passed through the various process steps of opening and cleaning, the fiber bundle 4 enters the filling channel 2, and then the fiber bundle 4 further passes through the feeding device 5 to the feed channel 3, wherein the feeding device 5 includes a feed roller 6 and an opening roller 7 and an air supply device (not shown). The air flow 8 generated by the air supply device is blown tangentially into the feed channel 3 along the opening roller 7 to transfer the fiber bundle 4 from the opening roller 7 to the feed channel 3 and ensure that the fiber filling 11 formed by the fiber bundle 4 is compacted in front of the feeding device 10 of the carding machine 200. The air leaves the feed channel 3 through the air permeable area 9 of the wall at the end of the feed channel 3. The feeding device 10 feeds the fiber filling 11 to the licker-in module of the carding machine 200. The licker-in module includes a licker-in 12. The fiber material discharged from the feeder 10 is further opened by the licker-in roller 12. To remove any impurities contained in the fiber material, the licker-in roller 12 is typically equipped with a waste separation device 1. This device typically includes a dusting blade and a corresponding suction duct. For example, the dusting blade and suction duct are typically located on the underside of the licker-in roller 12, near the feeder 10. This is advantageous because impurities removed by the dusting blade fall directly into the suction duct under their own gravity. The fiber material then passes through the downstream carding element 224. Finally, the licker-in roller 12 transfers the fiber material to the cylinder 13 of the carding machine 200, which is fully opened and parallelizes the fibers. The cylinder 13 cooperates with a flat plate unit 14. After some fibers have rotated several times on the carding cylinder 13, they are picked up from the cylinder 13 by a doffer 15 in the form of a fiber web and conveyed to the sliver forming unit 16. The fiber web is then converted into sliver 17 by the sliver forming unit 16. The sliver 17 is then stored in cans for further transport (not shown).

[0025] FIG2 is a partial view of the impurity conveying system 100 for the carding machine of the present invention in FIG1 , and FIG3 is a schematic structural diagram of the impurity conveying system 100 . Due to the compact structure of the carding machine 200 , the space around its licker-in roller 12 is extremely limited. In order to remove more impurities on the licker-in roller 12 , the impurity conveying system 100 of the present invention is set between the fixed combing element 224 at the bottom of the licker-in roller 12 and the cylinder 13 , while reducing the combing elements. Here, the free space close to the lower side of the cylinder 13 is convenient for inserting and installing the impurity conveying system 100 . Since there is also a combing element 224 between it and the existing impurity separation device 1 , their airflows will not affect each other. Specifically, the impurity conveying system 100 for the carding machine 200 of the present invention includes:

[0026] an opening 110 facing the licker-in 12 of the carding machine 200 and configured to allow impurities 990 to enter the impurity conveying system 100 ;

[0027] - a suction duct 130 configured to receive the impurities 990 and to transport the impurities 990 via an air flow; and

[0028] A guide channel 120 , which is configured to guide the impurities 990 from the opening 110 to the suction duct 130 .

[0029] Due to the compact configuration of the impurity conveying system 100, the problem of insufficient space in existing carding machines is overcome, and existing carding machines can be modified. Moreover, since the impurity conveying system 100 has relatively few components, it is easy to maintain and replace.

[0030] Due to the spatial structure limitations of the carding machine 200, in the impurity conveying system 100 of the present invention, the suction pipe 130 is arranged at a position approximately horizontal to the opening 110, as shown in Figure 3. Therefore, the impurities 990 cannot fall into the suction pipe 130 by their own gravity, and the air flow generated by the existing negative pressure suction system (not shown) may be insufficient to absorb the impurities 990 into the suction pipe 130. Therefore, in order to prevent the impurities 990 from accumulating in the guide channel 120 and / or the opening 110 and causing blockage, preferably, the impurity conveying system also includes a blowing device 140, which is configured to blow the impurities 990 from the guide channel 120 and / or from the opening 110 to the suction pipe 130. Specifically, the blowing device 140 is provided at the opening 110 and preferably includes a blowing pipe 142. As shown in FIG4 , the blowing pipe 142 extends over the entire working width of the carding machine 200 and has a plurality of blowing ports 143 arranged thereon. One end or both ends of the blowing pipe 142 can be connected to a compressed air source (not shown). The generated compressed air flow is ejected through the plurality of blowing ports 143 arranged thereon over the entire working width of the carding machine, blowing the impurities 990 into the suction duct 130 along the guide channel 120. It is conceivable that the blowing device 140 can also be a duct having continuous openings for blowing over the working width, and the blowing action can be set to continuous blowing during operation or to intermittent blowing.

[0031] The blowing device 140 includes a protective element 141 for partially or completely protecting the blowing device 140. Specifically, as shown in Figures 3 and 4, the blowing pipe 142 is fixedly connected to the protective element 141 and is arranged on the lower side of the protective element 141. The blowing pipe 142 and the protective element 141 can be fixed to the combing element 224 through a bracket, or the protective element 141 can be extended to form an extension 144 as a bracket connected to the combing element 224 of the combing machine, and can be fixed by various known methods such as screws and nuts. A debris removal opening is formed between the protective element 141 and the dust removal knife 223, which basically faces the opening 110 of the impurity conveying system of the present invention. By replacing the blowing device 140 of different sizes (for example, changing the length of the extension 144), the distance between the debris removal opening between the protective element 141 and the dust removal knife 223 can be changed, thereby optimizing the amount of debris removal as needed.

[0032] The guide channel 120 includes a first wall including a first adjacent surface 221 of the dust removal blade 223 and / or a first plate 121 facing the guide channel 120. The guide channel 120 also includes a second wall including a second adjacent surface 222 of the combing element 224 and / or a second plate 122 facing the guide channel 120. The second plate 122 is arranged substantially parallel to the first adjacent surface 221 of the dust removal blade 223.

[0033] Therefore, the opening 110 is partially or completely included between the first wall, the second wall, the blowing device 140 and / or the protective element 141, and therefore, the opening 110 can partially or completely face the licker-in roller 12, wherein the protective element 141 is configured to overlap with the first wall and / or the second wall.

[0034] The impurity conveying system 100 includes a gap 101 formed between the protective element 141, the first wall, and / or the second wall. The blowing device 140 is configured to blow an airflow and / or impurities 990 through the gap 101 between the protective element 141, the first wall, and / or the second wall. Thus, the protective element 141 can prevent impurities 990 from falling into the gap 101, and the airflow blown by the blowing device 140 can be deflected toward the first wall and / or the second wall. For example, the airflow blown by the blowing device 140 is directed toward the gap 101, and the airflow enters the guide channel 120 through the gap 101, blowing the impurities 990 from the opening 110 and / or the guide channel 120 to the suction duct 130. In general, due to the suction effect of the suction duct 130, the air flow in the environment can enter the guide channel 120 from the gap 101 along the second adjacent surface 222 of the second wall. Combined with the airflow of the blowing device 140, the impurities 990 can be effectively blown from the opening 110 and / or the guide channel 120 to the suction duct 130, avoiding the problem of blockage of the opening 110 and / or the guide channel 120.

[0035] The present invention also relates to a carding machine 200, which includes the above-mentioned impurity conveying system 100. It overcomes the problem of insufficient space in existing carding machines, and existing carding machines can be modified to remove more impurities from the fiber material by adding the impurity conveying system 100.

[0036] The present invention also relates to a method for modifying an existing carding machine, comprising reducing the carding element 224 to form a space between the dust removal blade 223 and the carding element 224, and disposing the impurity conveying system 100 in the formed space between the dust removal blade 223 and the carding element 224. This method overcomes the lack of space in existing carding machines, and by adding the impurity conveying system 100, more impurities in the fiber material can be removed.

[0037] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the scope of protection of the present invention.

Claims

1. An impurity conveying system (100) for a carding machine (200), characterized in that include: an opening (110) facing the licker-in roller (12) of the carding machine (200) and configured to allow foreign matter (990) to enter the foreign matter conveying system (100); - a suction duct (130) configured to receive the impurities (990) and transport the impurities (990) via an air flow; and A guide channel (120) configured to guide the impurities (990) from the opening (110) to the suction duct (130).

2. The impurity conveying system (100) for a carding machine (200) according to claim 1, characterized in that The impurity conveying system (100) includes a blowing device (140) configured to blow impurities from the guide channel (120) and / or from the opening (110) to the suction duct (130).

3. The trash conveying system (100) for a carding machine (200) according to claim 1 or 2, characterized in that: The guide channel (120) comprises a first wall (121, 221); the first wall (121, 221) comprises a first adjacent surface (221) of a dust removal knife (223) facing the guide channel (120) and / or a first plate (121).

4. The trash conveying system (100) for a carding machine (200) according to any one of claims 1 to 3, characterized in that: The guide channel (120) comprises a second wall (122, 222); the second wall (122, 222) comprises a second adjacent surface (222) of a combing element (224) facing the guide channel (120) and / or a second plate (122).

5. The trash conveying system (100) for a carding machine (200) according to any one of claims 1 or 4, characterized in that: The blowing device (140) includes a protective element (141) configured to protect the blowing device (140).

6. The trash conveying system (100) for a carding machine (200) according to any one of claims 1 to 5, characterized in that: The opening (110) is partially or completely included between the first wall (121, 221), the second wall (122, 222), the blowing device (140) and / or the protective element (141).

7. The trash conveying system (100) for a carding machine (200) according to any one of claims 1 to 6, characterized in that: The protection element (141) is configured to overlap with the first wall (121, 221) and / or the second wall (122, 222).

8. The trash conveying system (100) for a carding machine (200) according to any one of claims 1 to 7, characterized in that: The impurity conveying system (100) includes a gap (101), which is contained between the protective element (141), the first wall (121, 221) and / or the second wall (122, 222); the blowing device (140) is configured to blow the air flow and / or impurities (990) through the gap (101) between the protective element (141), the first wall (121, 221) and / or the second wall (122, 222).

9. Carding machine (200), characterized in that The invention comprises an impurity conveying system (100) according to any one of claims 1 to 8.

10. A method for modifying a carding machine, characterized in that: The invention comprises reducing a combing element (224) so as to form a space between a dust knife (223) and the combing element (224), and inserting an impurity conveying system (100) according to any one of claims 1 to 8 between the dust knife (223) and the combing element (224) in the formed space.

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