Detection equipment for foreign fibers

Abstract

The utility model provides detection equipment for foreign fibers, which comprises a rack, and a linear module, an illumination detection unit and a collection box which are positioned in the rack, the illumination detection unit comprises a detection camera and an illumination light source, a sliding block of the linear module is fixedly connected with a grabbing unit, and the grabbing unit is used for placing the grabbed foreign fibers into the collection box; the grabbing unit comprises an air cylinder fixing plate, a lifting air cylinder, an air cylinder connecting plate, a grabbing air cylinder and a grabbing hand, the upper side and the lower side of the lifting air cylinder are fixedly connected with the air cylinder fixing plate and the air cylinder connecting plate respectively, the upper portion of the grabbing air cylinder is fixedly installed on the air cylinder connecting plate, and the grabbing hand is arranged below the grabbing air cylinder. The detection equipment for foreign fibers is relatively simple in structure and various in fixed installation mode, can be applied to a reciprocating bale plucker for cotton spinning and can also be applied to various occasions such as chemical fibers or other similar fiber fabrics or a rotary bale plucker, and the application range of a detection mechanism is widened.

Description

Technical Field

[0001] The utility model relates to a device for detecting foreign fibers in advance on a cotton grabbing device, in particular to a device for detecting foreign fibers. Background Art

[0002] For cotton spinning (or other fiber spinning), the raw fibers may be mixed with other fibers or other impurities (collectively referred to as foreign fibers). When these foreign fibers enter the textile production line together with the raw fibers, the quality of the products (such as yarn, etc.) produced will be seriously reduced. In order to ensure product quality, textile mills will add foreign fiber removal equipment - foreign fiber machines in the textile production line. Foreign fiber machines are usually placed in the channel between the cotton plucker and the carding machine. Although this can remove a large number of foreign fibers, the foreign fibers will be broken by the "beaters" of the cotton plucker during the cotton plucking process. This causes the large foreign fibers in the raw cotton to become a large number of small foreign fibers. This not only brings a lot of difficulties to the foreign fiber machine to remove foreign fibers, but also causes the foreign fiber machine to blow out a large amount of raw cotton while blowing out foreign fibers. Moreover, due to the large number of foreign fibers, some of the foreign fibers that pass through the foreign fiber machine are not detected, and enter the subsequent spinning process together with the raw cotton, reducing the final yarn quality.

[0003] At present, there is a foreign fiber detection device applied to the plucking machine of cotton textile, and the patent number is: CN202123314781. However, the detection device in this patent only has a detection function. When foreign fibers are found, the machine needs to be stopped to manually detect the foreign fibers, and then the plucking machine can continue to operate. This is bound to greatly affect the production efficiency of the plucking machine. Utility Model Content

[0004] The utility model provides a detection device for foreign fibers, which solves the problem of being able to detect foreign fibers and grab them before fiber spinning and cotton grabbing. The technical solution is as follows:

[0005] A detection device for foreign fibers comprises a frame, and a linear module, a lighting detection unit and a collection box located inside the frame, wherein the lighting detection unit comprises a detection camera and a lighting light source, and a slider of the linear module is fixedly connected with a grabbing unit for placing the grabbed foreign fibers into the collection box; the grabbing unit comprises a cylinder fixing plate, a lifting cylinder, a cylinder connecting plate, a grabbing cylinder and a gripper, wherein the upper and lower sides of the lifting cylinder are fixedly connected with the cylinder fixing plate and the cylinder connecting plate respectively, the grabbing cylinder is fixedly mounted on the cylinder connecting plate at the top, and a gripper is arranged at the bottom.

[0006] The lighting detection unit is lower than the linear module and is installed on the side of the linear module without affecting the movement of the slider of the linear module.

[0007] A collecting box is provided at the front end and / or the rear end of the frame for collecting the foreign fibers captured by the capturing unit.

[0008] The cylinder fixing plate is fixedly connected to the slider of the linear module on the upper side and is fixedly connected to the lifting cylinder on the lower side. The cylinder connecting plate is connected to the lifting cylinder on the upper side and is connected to the grabbing cylinder on the lower side.

[0009] The grabbing cylinder is fixed with three grabbers evenly distributed on the same circumference, and the structure of the grabber is a conical structure with a pointed head and an overall inward inclination.

[0010] The lighting detection unit also includes a protective cover and a glass plate. The detection camera and the lighting light source are installed inside the protective cover, and the lower surface of the protective cover is a glass plate.

[0011] An external cover shell with an opening at the bottom is also provided for covering the frame.

[0012] The side surface of the frame is fixedly mounted on the cotton grabbing arm of the cotton grabbing machine through an angle seat.

[0013] Detection equipment for foreign fibers is fixedly installed on the left and right sides of the cotton grabbing arm.

[0014] The detection device for foreign fibers can also be fixed above a conveyor belt transporting the spinning products by means of a supporting device.

[0015] The foreign fiber detection device can detect and pick out foreign fibers before the plucking machine picks the cotton. This will inevitably greatly reduce the workload of the subsequent foreign fiber machine, not only reducing the raw cotton brought out when the foreign fiber machine detects foreign fibers, but also reducing or even eliminating foreign fibers from entering the subsequent spinning process.

[0016] The utility model can not only detect foreign fibers when the plucking machine is working, but also automatically grasp the fibers without stopping the machine, thereby improving the efficiency of the plucking machine. Moreover, the detection device in the utility model has a relatively simple structure and various fixing and installation methods. It can be applied not only to reciprocating plucking machines for cotton spinning, but also to chemical fiber or other similar fiber fabrics or rotary plucking machines and other occasions, thus expanding the application scope of the detection mechanism.

[0017] The beneficial effects of the utility model are as follows: 1. After adopting the detection device of the utility model, a large number of foreign fibers are detected and selected during the cotton plucking process of the cotton plucking machine, which greatly reduces the working pressure of the subsequent foreign fiber sorting machine. According to calculations, the number of foreign fibers detected by the foreign fiber sorting machine after the cotton fibers passed through the detection device of the utility model and then entered the subsequent foreign fiber sorting machine decreased by an average of 60% compared with the cotton plucking machine without the utility model. 2. The utility model can also be widely used in cotton plucking machines or other fiber textile raw material grabbing systems, such as cotton spinning, or in foreign fiber detection of fiber materials transported by conveyor belts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the structure of the detection device for foreign fibers installed on a cotton plucking machine;

[0019] Figure 2 is a schematic structural diagram of the detection device for foreign fibers;

[0020] Figure 3 is a structural schematic diagram of the grabbing unit;

[0021] Figure 4 is a structural schematic diagram of the lighting detection unit;

[0022] Figure 5 is a schematic diagram of the gripper. DETAILED DESCRIPTION

[0023] like Figure 1 As shown, the detection device 3 for foreign fibers is installed on the plucking machine body 1 of the reciprocating plucking machine, and there is a plucking machine track (not shown in the figure) below the plucking machine body 1. The working process of the plucking machine is that the plucking machine body 1 reciprocates left and right on the plucking machine track. The plucking machine body 1 is provided with a plucking arm 2, and a plucking beater (not shown in the figure) is provided inside the plucking arm 2. There is a cotton bag below the plucking arm 2, and the plucking arm 2 reciprocates left and right above the cotton bag. The plucking beater continuously grabs the cotton on the upper layer of the cotton bag and transports the cotton to the next step through a pipeline (not shown in the figure).

[0024] Furthermore, the detection device 3 for foreign fibers is provided with two groups, which are fixedly mounted on the left and right sides of the cotton grabbing arm 2 through the angle seat 4.

[0025] like Figure 2 As shown, the detection device 3 for foreign fibers provided by the utility model includes a frame 5, a linear module 6, a grabbing unit 7, a lighting detection unit 8 and a collecting box 9, wherein the linear module 6, the lighting detection unit 8 and the collecting box 9 are all installed in the frame 5, and the grabbing unit 7 is installed on the linear module 6.

[0026] The frame 5 is made of aluminum alloy and is rectangular, and the side is fixedly mounted on the cotton grabbing arm 2 through the angle seat 4. The detection device 3 for foreign fibers is also provided with an external cover with an opening at the bottom, which is used to cover the frame 5, but it is not drawn in the figure for the sake of clarity.

[0027] The frame 5 is internally installed with a linear module 6 and a lighting detection unit 8. The slider of the linear module 6 can drive the grabbing unit 7 to move forward and backward. The lighting detection unit 8 is lower than the linear module 6 and is installed on the side of the linear module 6 without affecting the movement of the slider of the linear module 6. The front end and / or rear end of the frame 5 is provided with a collecting box 9 for collecting foreign fibers grabbed by the grabbing unit 7.

[0028] like Figure 3 As shown, the grabbing unit includes a cylinder fixing plate 10, a lifting cylinder 11, a cylinder connecting plate 12, a grabbing cylinder 13 and a gripper 14. The upper and lower sides of the lifting cylinder 11 are respectively fixedly connected to the cylinder fixing plate 10 and the cylinder connecting plate 12. The grabbing cylinder 13 is provided with a gripper 14 at the bottom and fixedly installed on the cylinder connecting plate 12 at the top.

[0029] The cylinder fixing plate 10 is fixedly connected to the slider of the linear module 6 on the top, and is fixedly connected to the lifting cylinder 11 on the bottom. The cylinder connecting plate 12 is connected to the lifting cylinder 11 on the top, and is connected to the grabbing cylinder 13 on the bottom. Furthermore, the grabbing cylinder 13 is fixed with three grippers 14. The grippers 14 are conical structures with pointed heads and slightly inward tilt. The purpose of designing this structure is to reduce the amount of raw cotton to be grabbed and to grab foreign fibers more accurately. Figure 5 As shown, the tail of the gripper 14 is fixed to the sliding platform of the grabbing cylinder 13 by screws. The grabbing cylinder 13 adopts a common cylinder on the market, which is a 3-point pneumatic finger. The cylinder is provided with three sliding platforms. When the cylinder is in motion, the sliding platform used to fix the tail of the gripper translates, and each sliding platform is correspondingly installed with a gripper. In this way, when the sliding platform is working and translates, the gripper translates with the sliding platform (i.e., opens or closes). When the sliding platform translates toward the center, the three grippers close toward the center, and the gripper tips are tightened, thereby grasping a piece of cotton with foreign fibers (it is basically impossible to grasp foreign fibers alone without grasping cotton). When the grabbing cylinder 13 translates to above the collecting box 9, the three sliding platforms on the cylinder move away from the center, so that the three grippers open outward, and the grasped cotton with foreign fibers falls into the collecting box.

[0030] like Figure 4As shown, the lighting detection unit 8 includes a protective cover 15, a detection camera 16, a lighting source 17 and a glass plate 18. The detection camera 16 and the lighting source 17 are installed inside the protective cover 15, and the lower surface of the protective cover 15 is a glass plate 18.

[0031] The protective cover 15 is rectangular and connected to the frame 5, and is used to cover the detection camera 16 and the lighting source 17. Due to the harsh environment of the textile factory, there are a lot of cotton wool flying in the air, so the detection camera 16 and the lighting source 17 must be protected, otherwise the lens surface is easily covered with a layer of cotton wool, resulting in inaccurate detection. Therefore, the protective cover 15 is designed, and the lower surface of the protective cover 15 is a glass plate 18. The glass plate 18 does not affect the detection of foreign fibers by the detection camera 16 under the light of the lighting source 17.

[0032] The number of the detection cameras 16 and the illumination light sources 17 are both two, which is determined by the cotton plucking width of the reciprocating plucking machine. Due to the detection range of the detection camera and the requirements for shooting accuracy, two detection cameras 16 and two illumination light sources 17 are required. When used on other equipment, the respective numbers will change accordingly according to the specific situation.

[0033] The working process of the utility model is as follows: As mentioned above, the utility model is fixed on the cotton grabbing arm 2. When the cotton grabbing machine 1 is working, the utility model follows the cotton grabbing machine 1 and reciprocates left and right on the cotton bale. With the detection function turned on, the detection camera 16 takes real-time photos of the state of the cotton bale surface below, and the control system analyzes online whether there are foreign fibers on the cotton bale surface. When foreign fibers are detected, the control system sends a command to the linear module 6, and the linear module 6 drives the grabbing unit 7 to move quickly to the corresponding position of the foreign fibers. Then the lifting cylinder 11 in the grabbing unit 7 descends, and after descending to the position, the grabbing cylinder 13 contracts, and the three grippers 14 on the grabbing cylinder 13 close to grab the foreign fibers. Then the lifting cylinder 11 rises, and the grabbing unit 7 is driven by the linear module 6 again to the top of the foreign fiber collection box 9. The grabbing cylinder 13 opens immediately, and the foreign fibers on the gripper 14 will fall into the foreign fiber collection box 9. The linear module 6 drives the grabbing unit 7 back to the waiting position to prepare for the next foreign fiber grabbing.

[0034] Since the reciprocating plucker moves back and forth above the cotton bale, the detection device for foreign fibers provided by the utility model is respectively installed on the left and right sides of the plucker arm 2. This ensures that when the plucker moves in both directions, there is a detection device for foreign fibers to grab foreign fibers.

[0035] Another advantage of the utility model is that since the frame 5 is made of aluminum alloy profiles, the corner seat 4 can be installed and fixed at any position on the aluminum alloy profile. In addition, the length of the aluminum alloy profile can be lengthened or shortened according to the change of the carrying body. In other words, it is not limited to the cotton plucking machine (including reciprocating cotton plucking machine and rotary cotton plucking machine) for cotton spinning. For textile mills of other silk fabrics, corresponding changes can be made according to the different fiber grabbing equipment of the factory, such as the width of the frame 5, the number of cameras 16 and lighting sources 17, etc. So as to adapt to the detection of foreign fibers when grabbing all silk fabric raw materials. In addition, there is another situation: the spinning products of some textile mills are transported to the subsequent spinning process through a conveyor belt (rather than a plucking machine). The utility model can also use a supporting device to be placed on the conveyor belt, and the detection equipment for foreign fibers is fixed, and the fibers on the conveyor belt are detected in real time, and the foreign fibers are identified and detected.

[0036] The utility model has the following advantages: 1. After adopting the detection device of the utility model, a large number of foreign fibers are detected and selected during the cotton plucking process of the cotton plucking machine. The working pressure of the subsequent foreign fiber sorting machine is greatly reduced. According to calculations, the number of foreign fibers detected by the foreign fiber sorting machine after the cotton fibers that pass through the detection device of the utility model and then enter the subsequent foreign fiber sorting machine is reduced by 60% on average compared with the cotton plucking machine that does not use the utility model. 2. The utility model can also be widely used in cotton plucking machines such as cotton spinning or other fiber textile raw material grabbing systems. Or used in foreign fiber detection of fiber materials transported by conveyor belts.

Claims

1. A detection device for foreign fibers, characterized in that: It includes a frame, and a linear module, a lighting detection unit and a collection box located inside the frame. The lighting detection unit includes a detection camera and a lighting light source. The slider of the linear module is fixedly connected with a grabbing unit for putting the grabbed foreign fibers into the collection box. The grabbing unit includes a cylinder fixing plate, a lifting cylinder, a cylinder connecting plate, a grabbing cylinder and a gripper. The upper and lower sides of the lifting cylinder are respectively fixedly connected to the cylinder fixing plate and the cylinder connecting plate. The grabbing cylinder is fixedly installed on the cylinder connecting plate at the top, and a gripper is arranged at the bottom.

2. The detection device for foreign fibers according to claim 1, characterized in that: The lighting detection unit is lower than the linear module and is installed on the side of the linear module without affecting the movement of the slider of the linear module.

3. The detection device for foreign fibers according to claim 1, characterized in that: A collecting box is provided at the front end and / or the rear end of the frame for collecting the foreign fibers captured by the capturing unit.

4. The detection device for foreign fibers according to claim 1, characterized in that: The cylinder fixing plate is fixedly connected to the slider of the linear module on the upper side and is fixedly connected to the lifting cylinder on the lower side. The cylinder connecting plate is connected to the lifting cylinder on the upper side and is connected to the grabbing cylinder on the lower side.

5. The detection device for foreign fibers according to claim 1, characterized in that: The grabbing cylinder is fixed with three grabbers evenly distributed on the same circumference, and the structure of the grabber is a conical structure with a pointed head and an overall inward inclination.

6. The detection device for foreign fibers according to claim 1, characterized in that: The lighting detection unit also includes a protective cover and a glass plate. The detection camera and the lighting light source are installed inside the protective cover, and the lower surface of the protective cover is a glass plate.

7. The detection device for foreign fibers according to claim 1, characterized in that: An external cover shell with an opening at the bottom is also provided for covering the frame.

8. The detection device for foreign fibers according to claim 1, characterized in that: The side surface of the frame is fixedly mounted on the cotton grabbing arm of the cotton grabbing machine through an angle seat.

9. The detection device for foreign fibers according to claim 8, characterized in that: Detection equipment for foreign fibers is fixedly installed on the left and right sides of the cotton grabbing arm.

10. The detection device for foreign fibers according to claim 1, characterized in that: The detection device for foreign fibers can also be fixed above a conveyor belt transporting the spinning products by means of a supporting device.

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