技术领域technical field
本实用新型涉及纺织机械领域，具体的说是用于梳棉机自动检测棉条直径是否合格并自动断条的装置。The utility model relates to the field of textile machinery, in particular to a device for a carding machine to automatically detect whether the diameter of a sliver is qualified and automatically break the sliver.
背景技术Background technique
梳棉机是用于加工棉纤维和化学纤维，属于纺织机械。按照纺纱工艺流程，梳棉是一道重要的工序。梳棉机的前道工序是开清棉联合机，后道工序是并条机(普梳工艺流程)或条卷机(精梳工艺流程)。Carding machine is used to process cotton fiber and chemical fiber, which belongs to textile machinery. According to the spinning process, carding is an important process. The front process of the carding machine is the combined opening and cleaning machine, and the subsequent process is the drawing frame (carding process) or sliver coiler (combing process).
梳棉机的工作原理是将前道工序送来的棉(纤维)卷或由棉箱供给的油棉(化纤)层进行开松分梳和除杂，使所有呈卷曲块状的棉圈成为基本伸直的单纤维状，并在此过程中，除掉清花工序遗留下来的破籽、杂质和短绒，然后集成一定规格棉条、储存于棉条筒内，供并条工序使用。The working principle of the carding machine is to loosen, card and remove impurities from the cotton (fiber) rolls sent by the previous process or the oil cotton (chemical fiber) layer supplied by the cotton box, so that all the coiled cotton loops become It is basically straight single fiber, and in the process, the broken seeds, impurities and short fibers left over from the blowing process are removed, and then the sliver of a certain specification is integrated and stored in the sliver can for use in the drawing process.
当前棉纺车间梳棉机棉条普遍采用挡车工操作，用肉眼观察棉条粗细，手工分拣，手工断条的方式。此种方式存在极大的缺点：1、粗细条检测不准确，精度低，影响产品质量；2、手工分拣、断条，效率低，占用大量劳动力；3、棉条筒满人工判断精确度差，造成棉条长短不一，影响后道工序及产品质量。At present, the cotton slivers of the carding machine in the cotton spinning workshop are generally operated by a car operator, who observes the thickness of the cotton sliver with the naked eye, manually sorts, and manually breaks the slivers. This method has great disadvantages: 1. Inaccurate detection of thick and thin strips, low precision, which affects product quality; 2. Manual sorting and broken strips are inefficient and take up a lot of labor; 3. Manually judge the accuracy of cotton sliver cans Poor, resulting in different lengths of sliver, affecting the subsequent process and product quality.
实用新型内容Utility model content
跟据上述不足之处，本实用新型的目的是提供一种用于梳棉机自动判断并断条的装置，通过本装置可以代替传统手工操作，避免手工操作造成的误差，大大降低了劳动强度。According to the above shortcomings, the purpose of this utility model is to provide a device for automatic judgment and sliver breaking of carding machines. This device can replace traditional manual operation, avoid errors caused by manual operation, and greatly reduce labor intensity. .
为实现上述目的，本实用新型的技术方案在于：一种梳棉机棉条检测及自动断条装置，它包括圈条器和与圈条器相连用于固定圈条器的支架，支架固定在底座上，底座上设有棉条筒，底座与棉筒筒之间设有回转机构，所述的圈条器下方设有断条机构，所述的断条机构通过连接板与支架相连，所述的断条机构下方设有废料承接筐，所述的废料承接筐通过转动轴与支架相连，所述圈条器的棉条出口处设有棉条直径检测装置，所述的底座上设有棉条筒凹槽，棉条筒凹槽中心位置设有载荷传感器，所述的棉条直径检测装置、断条机构、转动轴、载荷传感器和回转机构与PLC控制系统和人机交互界面相连。In order to achieve the above object, the technical solution of the utility model is: a carding machine sliver detection and automatic sliver breaking device, which includes a coiler and a bracket connected with the coiler for fixing the coiler, the bracket is fixed on On the base, there is a cotton sliver can on the base, a rotary mechanism is set between the base and the cotton can, and a strip breaking mechanism is arranged below the coiler, and the strip breaking mechanism is connected with the bracket through a connecting plate, so that A waste receiving basket is provided below the sliver breaking mechanism, and the waste receiving basket is connected to the support through a rotating shaft, a sliver diameter detection device is provided at the sliver outlet of the sliver coiler, and a sliver diameter detection device is provided on the base. The sliver can groove is provided with a load sensor at the center of the sliver can groove. The sliver diameter detection device, the sliver breaking mechanism, the rotating shaft, the load sensor and the rotary mechanism are connected with the PLC control system and the man-machine interface.
通过本装置可以自动检测棉条粗细是否合格，自动将不合格的棉条切断并收集，并且棉条筒满自动提示并断条，挡车工只需要及时更换棉条筒即可，极大的降低了挡车工的劳动强度，大大节省了用工人数，提高了棉条粗细判断的精确度和断条时切口的整齐程度，提高了产品质量，同时，每筒内棉条长度基本一直，即棉条长度基本一直，便于后道工序的操作。This device can automatically detect whether the thickness of the sliver is qualified, automatically cut off and collect the unqualified sliver, and automatically prompt and break the sliver when the sliver can is full. The operator only needs to replace the sliver can in time, which greatly reduces It reduces the labor intensity of the car workers, greatly saves the number of workers, improves the accuracy of judging the thickness of the sliver and the neatness of the incision when the sliver is broken, and improves the product quality. At the same time, the length of the sliver in each cylinder is basically the same, that is, the sliver The length is basically constant, which is convenient for the operation of the subsequent process.
优选的是：所述的棉条直径检测装置包括本体，本体内部竖直方向上设有棉条通道，所述棉条通道的上端口设有压敏元件，所述的压敏元件的内直径与棉条通道直径一致，所述的压敏元件与放大电路相连。Preferably, the sliver diameter detection device includes a body, a sliver passage is arranged vertically inside the body, a pressure sensitive element is arranged at the upper port of the sliver passage, and the inner diameter of the pressure sensitive element is Consistent with the diameter of the sliver channel, the pressure sensitive element is connected with the amplifying circuit.
通过棉条直径检测装置可以实现自动判断棉条粗细的目的，避免人工判断的误差。Through the sliver diameter detecting device, the purpose of automatically judging the thickness of the sliver can be realized, and the error of manual judgment can be avoided.
优选的是：所述的棉条通道与棉条出口相对应，不会对棉条造成折叠或扭转，避免影响棉条的粗细，提高棉条粗细判断的准确度。Preferably, the sliver channel corresponds to the sliver outlet, which does not cause folding or twisting of the sliver, avoids affecting the thickness of the sliver, and improves the accuracy of judging the thickness of the sliver.
优选的是：所述的断条机构包括包括通过支撑架连接的切刀机构和固定机构。Preferably, the strip breaking mechanism includes a cutter mechanism and a fixing mechanism connected by a support frame.
优选的是：所述的切刀机构包括与连接板相连的切刀架和与切刀架相连的气缸Ⅱ，所述的气缸Ⅱ内的活塞杆设置在切刀架内部，所述的切刀架面向固定机构的一侧设有刀片槽，所述的活塞杆前端设有刀片，所述的刀片伸出刀片槽外。Preferably, the cutter mechanism includes a cutter frame connected with the connecting plate and a cylinder II connected with the cutter frame, the piston rod in the cylinder II is arranged inside the cutter frame, and the cutter The side of the frame facing the fixing mechanism is provided with a blade groove, and the front end of the piston rod is provided with a blade, and the blade protrudes out of the blade groove.
优选的是：所述的固定机构包括通过通孔套于支撑架上并沿支撑架移动的棉条固定板和与支撑架相连的气缸固定板，所述的气缸固定板外侧设有气缸Ⅰ。Preferably, the fixing mechanism includes a sliver fixing plate that is sleeved on the support frame through a through hole and moves along the support frame, and a cylinder fixing plate connected with the support frame, and a cylinder I is arranged outside the cylinder fixing plate.
通过自动断条机构可以实现自动断条的目的，避免了人工断条时对棉条切口不整齐而影响产品质量的弊端，同时保护挡车工的手部，提高操作安全性，大大提高了效率，降低了挡车工的劳动强度。The purpose of automatic sliver breaking can be achieved through the automatic sliver breaking mechanism, which avoids the disadvantages of affecting the product quality due to the irregular incision of the sliver when the sliver is broken manually, and at the same time protects the hand of the operator, improves the safety of operation, and greatly improves the efficiency. Reduced the labor intensity of the driver.
优选的是：所述的棉条固定板面向刀片一侧与刀片相对应位置设有凹槽，通过凹槽可以将棉条固定在凹槽内，避免刀片在切断棉条时将棉条划至一边而无法断条，保证断条的准确率。Preferably: the side of the sliver fixing plate facing the blade is provided with a groove corresponding to the blade, through which the sliver can be fixed in the groove, preventing the blade from scratching the sliver when cutting the sliver. One side cannot be broken, ensuring the accuracy of broken bars.
优选的是：所述的支架包括上支架和下支架，所述的上支架与下支架之间可伸缩连接。。本装置通过上、下支架之间可伸缩的设计，可以根据梳棉机的高度自由调整本装置合适的断条高度，提高本装置的适用性。Preferably, the bracket includes an upper bracket and a lower bracket, and the upper bracket and the lower bracket are telescopically connected. . Through the telescopic design between the upper and lower brackets, the device can freely adjust the suitable sliver height of the device according to the height of the carding machine, thereby improving the applicability of the device.
本实用新型的有益效果在于：通过本装置将自动检测棉条直径、不合格棉条自动断条、棉条筒满自动断条等一系列操作代替了传统人工判断和操作，大大提高了生产效率，降低了人工操作的误差，进一步提高了产品质量，同时极大的减少了挡车工的用工人数，节省了人员开支，为后道工序提供了优越条件。本实用新型结构简单，使用方便，实用性强。The beneficial effect of the utility model is that: through the device, a series of operations such as automatic detection of sliver diameter, automatic sliver breaking of unqualified sliver, automatic sliver breaking of full sliver can replace traditional manual judgment and operation, greatly improving production efficiency , It reduces the error of manual operation, further improves the product quality, and at the same time greatly reduces the number of workers who are in the car, saves personnel expenses, and provides superior conditions for the subsequent process. The utility model has the advantages of simple structure, convenient use and strong practicability.
附图说明Description of drawings
图1是本实用新型的结构示意图。Fig. 1 is a structural representation of the utility model.
图2是本实用新型的棉条直径检测装置的结构示意图一。Fig. 2 is a structural schematic diagram 1 of the sliver diameter detecting device of the present invention.
图3是本实用新型的棉条直径检测装置的结构示意图二。Fig. 3 is the second structural schematic diagram of the sliver diameter detection device of the present invention.
图4是本实用新型的固定机构的结构示意图一。Fig. 4 is a structural schematic diagram 1 of the fixing mechanism of the present invention.
图5是本实用新型的固定机构的结构示意图二。Fig. 5 is a structural schematic diagram II of the fixing mechanism of the present invention.
图6是本实用新型的切刀机构的结构示意图。Fig. 6 is a schematic structural view of the cutter mechanism of the present invention.
图中，1-圈条器；2-棉条直径检测装置；3-断条机构；4-气缸Ⅰ；5-废料承接筐；6-棉条筒；7-棉条筒凹槽；8-载荷传感器；9-回转机构；10-底座；11-支架；12-转动轴；13-连接板；14-气缸Ⅱ；15-本体；16-压敏元件；17-棉条通道；18-棉条；19-棉条固定板；20-通孔；21-凹槽；22-活塞杆；23-刀片；24-切刀架；25-刀片槽；26-气缸固定板；27-支撑架。In the figure, 1-sliver coiler; 2-sliver diameter detection device; 3-sliver breaking mechanism; 4-cylinder I; 5-waste receiving basket; 6-sliver can; 7-sliver can groove; 8- Load sensor; 9-rotary mechanism; 10-base; 11-bracket; 12-rotating shaft; 13-connecting plate; 14-cylinder II; 15-body; 19-sliver fixed plate; 20-through hole; 21-groove; 22-piston rod; 23-blade; 24-cutter frame; 25-blade groove; 26-cylinder fixed plate;
具体实施方式Detailed ways
下面结合具体实施例对本实用新型做进一步说明。Below in conjunction with specific embodiment the utility model is described further.
如图1所示的一种梳棉机棉条检测及自动断条装置，它包括圈条器1和与圈条器1相连用于固定圈条器1的支架11，支架11固定在底座10上，底座10上设有棉条筒6，底座10与棉条筒6筒底之间设有回转机构9。圈条器1下方设有断条机构3，断条机构3通过连接板13与支架11相连，断条机构3下方设有废料承接筐5，废料承接筐5通过转动轴12与支架11相连，圈条器1的棉条出口处设有棉条直径检测装置2。如图2-3所示的棉条直径检测装置2包括本体15，本体15内部竖直方向上设有棉条通道17，棉条通道17的上端口设有压敏元件16，压敏元件16的内直径与棉条通道17直径一致，压敏元件16与放大电路相连。其中，棉条通道17与棉条出口相对应。底座10上设有棉条筒凹槽7，棉条筒凹槽7中心位置设有载荷传感器8，棉条直径检测装置2、断条机构3、转动轴12、载荷传感器8和回转机构9与PLC控制系统和人机交互界面相连。其中，断条机构3包括包括通过支撑架27连接的切刀机构和固定机构。如图6所示的切刀机构又包括与连接板13相连的切刀架24和与切刀架24相连的气缸Ⅱ14，气缸Ⅱ14内的活塞杆22设置在切刀架24内部，切刀架24面向固定机构的一侧设有刀片槽25，活塞杆22前端设有刀片23，刀片23伸出刀片槽25外。如图4-5所示的固定机构包括通过通孔20套于支撑架27上并沿支撑架27移动的棉条固定板19和与支撑架27相连的气缸固定板26，气缸固定板26外侧设有气缸Ⅰ4，气缸Ⅰ4的活塞杆22前端穿过气缸固定板26与棉条固定板19相连。其中，棉条固定板19面向刀片23一侧与刀片23相对应位置设有凹槽21。支架11包括上支架和下支架，上支架与下支架之间可伸缩连接。A kind of carding machine sliver detection and automatic sliver breaking device as shown in Figure 1, it comprises coiler 1 and is connected with coiler 1 and is used for fixing the bracket 11 of coiler 1, and bracket 11 is fixed on base 10 Above, the base 10 is provided with a sliver can 6, and a rotary mechanism 9 is provided between the base 10 and the bottom of the sliver can 6. A strip breaking mechanism 3 is provided below the coiler 1, and the strip breaking mechanism 3 is connected to the support 11 through a connecting plate 13, and a waste material receiving basket 5 is arranged below the strip breaking mechanism 3, and the waste material receiving basket 5 is connected to the support 11 through a rotating shaft 12, A sliver diameter detecting device 2 is provided at the sliver outlet of the coiler 1 . The sliver diameter detection device 2 shown in Figure 2-3 comprises a body 15, a sliver channel 17 is arranged vertically inside the body 15, and a pressure sensitive element 16 is provided on the upper port of the sliver channel 17, and the pressure sensitive element 16 The inner diameter of the sliver is consistent with the diameter of the sliver channel 17, and the pressure sensitive element 16 is connected with the amplifying circuit. Wherein, the sliver channel 17 corresponds to the sliver outlet. The base 10 is provided with a sliver can groove 7, and the center position of the sliver can groove 7 is provided with a load sensor 8, a sliver diameter detection device 2, a sliver breaking mechanism 3, a rotating shaft 12, a load sensor 8 and a rotary mechanism 9 and The PLC control system is connected with the man-machine interface. Wherein, the strip breaking mechanism 3 includes a cutter mechanism and a fixing mechanism connected by a support frame 27 . The cutter mechanism as shown in Figure 6 comprises the cutter frame 24 that links to each other with connecting plate 13 and the cylinder II14 that links to each other with cutter frame 24 again, and the piston rod 22 in the cylinder II14 is arranged on the inside of cutter frame 24, and the cutter frame 24 is provided with a blade slot 25 on one side facing the fixing mechanism, and a blade 23 is provided at the front end of the piston rod 22, and the blade 23 stretches out of the blade slot 25. The fixing mechanism shown in Figure 4-5 comprises the sliver fixing plate 19 that is sleeved on the support frame 27 through the through hole 20 and moves along the support frame 27 and the cylinder fixing plate 26 that is connected with the support frame 27, the outside of the cylinder fixing plate 26 A cylinder I4 is provided, and the front end of the piston rod 22 of the cylinder I4 passes through the cylinder fixing plate 26 and is connected with the sliver fixing plate 19 . Wherein, the side of the sliver fixing plate 19 facing the blade 23 is provided with a groove 21 corresponding to the blade 23 . The support 11 includes an upper support and a lower support, which are telescopically connected between the upper support and the lower support.
使用时，先通过人机交互界面设定合格棉条直径的大小、棉条筒筒满的重量。初始状态时，棉条直径检测装置2、断条机构3、废料承接筐5和棉条筒6自上而下依次排列。然后运行本设备，此时，棉条通过圈条器1的棉条出口处进入棉条直径检测装置2的棉条通道17内。梳棉机一开始输出的棉条一般较细，不符合要求，棉条经断条机构3中间空隙落入废料承接筐5内。当梳棉机运行一定时间后，输出的棉条粗细符合要求，即棉条直径等于或稍大于棉条通道直径17，棉条18对压敏元件16形成一定压力，棉条18通过时，压敏元件16受到挤压，此时，压敏元件16将压力信号通过放大电路转换成电信号并传输给PLC控制系统，PLC控制系统控制断条机构3切断棉条18。具体的操作是PLC控制系统通过气动电磁阀推动气缸Ⅰ4内的活塞杆前进，即气缸Ⅰ4推动棉条固定板19沿支撑架27移动，最终与切刀架24并紧，即将棉条18夹紧，此时气缸Ⅱ14内的活塞杆22推动刀片23沿刀片槽25划动，将棉条18切断。棉条18切断后PLC控制系统控制气缸Ⅰ4和气缸Ⅱ14回到原位，由于气缸Ⅰ4的活塞杆与棉条固定板19相连，气缸Ⅰ4退回的同时，棉条固定板19也退回，即松开棉条18。棉条18切断后，PLC控制系统控制转动轴12转动将废料承接筐5偏转一个角度，让开棉条18通过的路线，不合格的棉条经废料承接筐5收集，合格的棉条18落入下方棉条筒6中。棉条筒6随着回转机构9不停转动收集棉条18，当筒内的棉条收集满的时候，即棉条筒6达到设定重量时，PLC控制系统控制断条机构3再次断条，具体操作如前所述。挡车工迅速更换棉条筒6，新的棉条落入空的棉条筒内。当棉条筒再次满时，重复上述操作。由于梳棉机只有在其刚开始运行时输出的棉条会有一段不合格棉条，而后续运行过程中输出的棉条一般均符合要求，因此只需要在梳棉机刚运行时收集废棉条即可。When in use, first set the size of the qualified sliver diameter and the full weight of the sliver can through the man-machine interface. In the initial state, the sliver diameter detection device 2, the sliver breaking mechanism 3, the waste material receiving basket 5 and the sliver can 6 are arranged sequentially from top to bottom. Then run this equipment, at this moment, the sliver enters in the sliver channel 17 of the sliver diameter detecting device 2 through the sliver outlet of the sliver coiler 1 . The cotton slivers output by the carding machine at the beginning are generally thinner and do not meet the requirements, and the cotton slivers fall into the waste material receiving basket 5 through the middle gap of the sliver breaking mechanism 3 . After the carding machine runs for a certain period of time, the thickness of the output sliver meets the requirements, that is, the diameter of the sliver is equal to or slightly larger than the diameter of the sliver channel 17, and the sliver 18 forms a certain pressure on the pressure-sensitive element 16. When the sliver 18 passes through, the pressure Sensitive element 16 is squeezed, and at this moment, pressure sensitive element 16 converts pressure signal into electric signal through amplifying circuit and transmits to PLC control system, and PLC control system controls sliver breaking mechanism 3 to cut off cotton sliver 18. The specific operation is that the PLC control system pushes the piston rod in the cylinder I4 forward through the pneumatic solenoid valve, that is, the cylinder I4 pushes the sliver fixing plate 19 to move along the support frame 27, and finally tightens with the cutter frame 24, that is, the sliver 18 is clamped At this time, the piston rod 22 in the cylinder II 14 pushes the blade 23 to slide along the blade groove 25 to cut off the sliver 18 . After the sliver 18 is cut off, the PLC control system controls the cylinder I4 and the cylinder II14 to return to their original positions. Since the piston rod of the cylinder I4 is connected to the sliver fixing plate 19, when the cylinder I4 is retracted, the sliver fixing plate 19 is also retracted, that is, loosened. Sliver18. After the sliver 18 is cut off, the PLC control system controls the rotation of the rotating shaft 12 to deflect the waste receiving basket 5 at an angle to allow the passage of the sliver 18 to be opened. The unqualified sliver is collected by the waste receiving basket 5 and the qualified sliver 18 falls Into the sliver can 6 below. The sliver can 6 rotates continuously with the rotary mechanism 9 to collect the sliver 18. When the sliver in the can is full, that is, when the sliver can 6 reaches the set weight, the PLC control system controls the sliver breaking mechanism 3 to break the sliver again. , the specific operation is as described above. The car worker replaces the sliver can 6 quickly, and new sliver falls in the empty sliver can. When the can is full again, repeat the above operation. Since the sliver output by the carding machine only has a section of unqualified sliver at the beginning of its operation, and the sliver output during the subsequent operation generally meets the requirements, it is only necessary to collect waste cotton when the carding machine is just running Article can be.
棉条直径检测装置的原理：压敏元件16的开口正对圈条器1的棉条出口，两者直径相同，当符合要求的棉条通过压敏元件16时，压敏元件16受到挤压，将棉条直径的变化通过压敏元件16连入的放大电路转变为电信号传入控制系统，再通过PLC系统作出切断棉条的指示，控制断条机构3切断棉条。The principle of the sliver diameter detection device: the opening of the pressure-sensitive element 16 is facing the sliver outlet of the coiler 1, and the diameters of the two are the same. When the sliver that meets the requirements passes through the pressure-sensitive element 16, the pressure-sensitive element 16 is squeezed , change the change of sliver diameter through the amplifying circuit that pressure-sensitive element 16 connects into and transfer into the control system of electric signal, then make the instruction of cutting sliver through PLC system, control sliver breaking mechanism 3 to cut off sliver.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526211.4UCN204185616U (en) | 2014-09-13 | 2014-09-13 | Carding machine sliver detection and automatic sliver breaking device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526211.4UCN204185616U (en) | 2014-09-13 | 2014-09-13 | Carding machine sliver detection and automatic sliver breaking device |
| Publication Number | Publication Date |
|---|---|
| CN204185616Utrue CN204185616U (en) | 2015-03-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420526211.4UExpired - LifetimeCN204185616U (en) | 2014-09-13 | 2014-09-13 | Carding machine sliver detection and automatic sliver breaking device |
| Country | Link |
|---|---|
| CN (1) | CN204185616U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195681A (en)* | 2014-09-13 | 2014-12-10 | 香港德力西控股有限公司 | Cotton sliver detecting and automatic sliver breaking device of carding machine |
| CN110127436A (en)* | 2019-06-04 | 2019-08-16 | 青岛大学 | An automatic sliver conveying system |
| CN112030281A (en)* | 2020-09-09 | 2020-12-04 | 广州麦德仕科技有限公司 | Carding machine slivering mechanism |
| CN113201810A (en)* | 2021-05-15 | 2021-08-03 | 佛山市兴华床上用品服装有限公司 | Carding machine |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195681A (en)* | 2014-09-13 | 2014-12-10 | 香港德力西控股有限公司 | Cotton sliver detecting and automatic sliver breaking device of carding machine |
| CN104195681B (en)* | 2014-09-13 | 2016-08-24 | 香港德力西控股有限公司 | Carding machine sliver detection and automatic sliver breaking device |
| CN110127436A (en)* | 2019-06-04 | 2019-08-16 | 青岛大学 | An automatic sliver conveying system |
| CN112030281A (en)* | 2020-09-09 | 2020-12-04 | 广州麦德仕科技有限公司 | Carding machine slivering mechanism |
| CN112030281B (en)* | 2020-09-09 | 2021-07-20 | 广州麦德仕科技有限公司 | Carding machine slivering mechanism |
| CN113201810A (en)* | 2021-05-15 | 2021-08-03 | 佛山市兴华床上用品服装有限公司 | Carding machine |
| CN113201810B (en)* | 2021-05-15 | 2021-12-10 | 佛山市兴华床上用品服装有限公司 | Carding machine |
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| AV01 | Patent right actively abandoned | Granted publication date:20150304 Effective date of abandoning:20160824 | |
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